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Шепєлєв, Анатолій Єгорович, Анатолий Егорович Шепелев, and Anatolii Yehorovych Shepieliev. "Correlate with somatic three parameters of sportmanship Sumy university archery team." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/48662.
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Sport result depends a lot on morphologic features of the sportsman, that is one of the selective factors determining the sportsman's perspective.
Purpose of research is to determine body build peculiarities of the students involved in archery.
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Masini, Alessandro. "Influence of the casting parameters on the membrane morphological characteristics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23058/.
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During the last century, the importance of membranes has increased drastically in our society; following this trend, their use in everyday life and in the industrial sector has dramatically rised. Consequently, membranes have been object of study in order to develop new material with new characteristics. This work aims at improving a current GVS portfolio-product, by developing a new filter based on alternative material and to substitute a competitor 3 membrane, whose production will be stopped due to the PerFluoroOctanoic Acid content, in a medical device that has to retain human urine. Firstly, the new polymer was studied, in order to understand how it affects membrane properties; once the basic information were obtained, we moved to analyze the influence of all the parameters in the solution preparation and in the casting process. Additionally, we have analyzed and selected the most appropriate membrane support and casting knife, to produce the most reliable membrane. Once we checked all the parameter, a first industrial trial was done based on the knowledge previously obtained; later, the trial has been analyzed to verify the stability of the product and to confirm the success of the industrial scale-up. The industrial trial has been compared with competitors’ membrane after urine test were carried out; the industrial trial showed superior results compared to the other membrane. Later we analyzed the impact of a standard laboratory testing protein on membranes, to observe if they were the main responsible for the pore occlusion after urine contact. Competitor 3 retains the same amount of protein of other membrane, for this reason, the hypothesis previously made was rejected.
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Huang, Ruoyu. "3D Freehand Ultrasonography in Quantifying Muscle Morphological Parameters in Lower Extremity." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294103.
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Muscle morphological parameters such as fascicle length (FL), pennationangle (PA) and physiologic cross-sectional area (PCSA) can provide an insightinto the reasons of the deteriorated muscle functions caused by pathologies.This study investigates the 3D structure of the lower leg muscles using 3Dfreehand ultrasound (3DfUS). This imaging modality uses a motion capturesystem to track the position of the US probe during acquisition and thusreconstruct the structure of the tissues in 3D. In this study, two subjects werescanned on the medial gastrocnemius (MG) and tibialis anterior (TA) musclesin the lower leg using 3DfUS system. The FL and PA of the muscles werecalculated and compared with the values previously measured using diffusiontensor imaging (DTI). The results using 3DfUS were averagely 19.2% largerin FL and 2.9%larger in PA. In conclusion, 3DfUS can successfully determinemuscle morphological parameters within a physiologically acceptable range.But the differences in FL observed between the two imaging modalities werequite big, which probably was due to the differences in sample size and area.The values can also differ greatly within the 3DfUS measurements as a resultof different manipulations during data processing, and the 3DfUS protocolneeds to be further improved in future studies.
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Žiemelis, Audrius. "Morfologinio daugiareikšminimo statistiniais metodais parametrų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100615_084959-97619.
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Šiame darbe kuriamas įrankis, kuris padėtų nustatyti, kurios morfologinės žymos savybės yra svarbios sprendžiant lietuvių kalbos morfologinio daugiareikšmiškumo problemą. Morfologinio daugiareikšmiškumo problema išsprendžiama tuomet, kai pagal kontekstą vienam žodžiui priskiriama viena morfologinė žyma. Darbe naudojamas tekstynas, kurį sudaro daugiau nei 1.200.000 žodžių. Tekstyne žodžiams morfologines žymas nustatė ekspertas, o visos galimos žodžio morfologinės žymos buvo sugeneruotos su pagalbiniu įrankiu. Morfologinio daugiareikšmiškumo problemoms spręsti suprogramuotas ir taikytas Viterbi algoritmas, randantis tikėtiniausią sakinį atitinkančią kalbos dalių seką pagal sukurtus bigramų ar trigramų kalbos modelius. Atlikus testavimą naudojant dešimt kartų kryžminį patikrinimą, pasiekti toki rezultatai: • 90,10% – tikslumas, kuris parodo ar teisingai priskirta morfologinė žyma daugiareikšmiams žodžiams; • 96,39% – bendras tikslumas, kuris skaičiuojamas įtraukiant ir tuos žodžius, kurie turėjo tik vieną morfologinę žymą.<br>In this research was developed tool, which helps to determine, which morphological mark attributes are important when solving problem of morphological ambiguity in Lithuanian language. Morphological ambiguity problem is solved, when one word is matched with one morphological mark. Research uses corpus, which contains over than 1.200.000 words. Morphological marks in the corpus were assigned by expert and list of all possible morphological marks was generated with other utility. There was developed and applied Viterbi algorithm to solve morphological ambiguity problem, which finds the most expected path of part of speeches by created bigram or trigram speech models. Testing was implemented using cross validation with 10 folds. There was achieved these results: • 90,10% – accuracy, which shows if morphological mark was correctly match with ambiguous word; • 96,39% – total accuracy, which calculated when included non-ambiguous words.
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Swayne, Jeffrey Lynn. "Small-scale morphology related to wave and current parameters across the surf zone." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA305764.
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Thesis (M.S. in Meteorology and Physical Oceanography) Naval Postgraduate School, December 1995.<br>"December 1995." Thesis advisor(s): Edward B. Thornton. Bibliography: p. 57-58. Also available online.
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Mackových, Marek. "Regresní analýza EKG pro odhad polohy srdce vůči měřicím elektrodám." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220859.
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This work focuses on the regression analysis of morphological parameters calculated from the ECG for estimating the position of the heart to the measuring electrodes. It consists of a theoretical analysis of the problems of ECG recording and description of the data obtained from experiments on isolated animal hearts. On the theoretical part is followed by a description of the calculation parameters suitable for regression analysis and their application in the training and testing of the following regression models to estimate the position of the heart to the measuring electrode.
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Shukla, Jay G. "Effect of processing parameters on morphology and mechanical properties of carbon/PEEK (APC2) composite." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/8276.
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Margaritis, Efstathios. "Effects of urban green spaces and related urban morphology parameters on urban sound environment." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/19179/.
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Urban morphology in combination with soundscape planning and design are important parameters towards the development of sustainable cities. Towards this direction this study primarily investigates the effect of urban morphology and green-space related parameters on traffic noise in different analysis levels. Secondly, it complements this first objective approach with a subjective one, investigating peoples’ perceptual attributes using auditory and visual stimuli. Both approaches aim at merging the gap between acoustics and planning on the grounds of the new holistic approach of urban sound planning. At first, a triple level analysis was conducted including case study cities across Europe with a view to understand to what extent greener cities can also be quieter. The analysis was conducted using GIS tools and noise data from European databases combined with land cover parameters. Results were scale-dependent with lower noise levels to be achieved in cities with a higher extent of porosity and green space coverage. A further cluster analysis combined with land cover data revealed that lower noise levels were detected in the cluster with the highest green space coverage. At last, a new index of ranking cities from the noisiest to the quietest was proposed. Using the findings concerning green spaces and traffic noise from the previous study, a second analysis was conducted focused on eight UK cities. The green space variables were adjusted to incorporate also parameters related to spatial pattern and smaller ontologies, such as vegetated backyards or front yards. Parameters related to urban morphology, such as buildings and roads were also investigated. The analysis was conducted in a macro, meso and micro scale using regression models and GIS tools. Cities were divided in two types of settlement forms (linear, radial) and results showed that the latter were associated with a higher green space ratio. Green space and morphological parameters managed to predict the Lden levels in two cities with an explained variance up to 85%. Results suggested that urban green space variables combined with other features of urban morphology conduct a significant role in traffic noise mitigation and can be used as a priori tool in urban sound planning. The third part of the study focused particularly on the effects of vegetation and traffic-related parameters on the sound environment of urban parks. The sound environment was evaluated using both simulated traffic data and in situ measurements from mobile devices inside the parks. Results showed that simulated noise distribution in the park scale varied between 43 and 78 dB(A) with a maximum range of 9 dB(A) per park and higher noise variability for LA10. Two groups of parks were identified according to the distance from the international ring road. For measurement data, LA90 and LA10 were higher outside the parks with differences up to 6 dB(A) for LA90 and up to 14.3 dB(A) for LA10. Additional correlations were also detected between noise levels and morphological attributes, while slightly higher noise levels were detected in areas covered with grass compared with tree areas. The previous objective findings were combined with a perceptual study on the transition from prediction to soundscape and design implementation. In this study the relationship between land use and sound sources was explored. The stimulus material was based on binaural recordings and 360°-videos. Participants were required to assess the dominance of sound sources and the appropriateness of land use and socio-recreational activities. Results showed that the activity-based environment can be explained by two main Components. The green space coverage and the proximity to roads were the most significant parameters in the prediction of these two components. In the final stage, a multivariate analysis (MANOVA) was used in order to identify significant variations for the land use activity variables in the three urban activity profiles. The whole process emphasized on the importance of linking urban planning and design with soundscape from the land use activity viewpoint. In the final stage, two of the previous UK case study cities were selected in order to develop a mapping model to aid soundscape planning with parallel implementation and assessment of its effectiveness. Ordinary Kriging interpolation was used in both cases to simulate the predictive values in unknown locations. In Sheffield, the soundscape model was based on the prediction and profiling of sound sources, while in Brighton in the prediction and profiling of perceptual attributes. The cross-validation process in both cases presented small errors with slightly underestimated prediction values. The outcomes from both case studies can be applied in environmental noise management and soundscape planning in different urban scales.
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Buratin, Stefano. "Pulsed laser ablation of silicon : the influence of beam parameters on ablated crater morphology." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8569/.
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Laser micromachining is one of the principal fields where the laser capability to change the material morphology is frequently applied and silicon is still the element most used in the semiconductor and photovoltaic industries despite the recent studies on new materials. Although various models reported in the literature describe the laser material interaction, the relation between the ablated crater morphology and the laser beam parameters remains unclear or does not give methods and equations that can be applied on the engineering environment. The aim of this thesis is to reduce the knowledge gap of the understanding of three laser parameters (pulse duration, energy beam shape, and polarisation) influence on the ablated crater morphology by providing functions and relations that can be applied in the engineering environment. First, a systematic study on laser pulse duration based on two different functions (i.e. thermal-based and non-thermal based) is carried out, then the impact of the thermal effect on crater morphology of two non-standard energy beam distributions (i.e. round flat-top and square-top) is evaluated, and finally the laser polarisation effects in the non-linear laser ablation regime are explored, providing the engineering environment of new functions and relations between laser beam parameters and crater morphology.
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Longo, Federico. "Three-dimensional computation of femoral canine morphological parameters: from the theory to the surgery application." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426322.
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The present research was envisioned as a project defined by multiple studies that are strictly correlated each other. The report of the birth, development and practical application to the diagnostic and surgery fields of a novel 3D approach for the computation of femoral measurements was the first aim. Moreover, in the authors’ purpose the description of the translational value of the proposed procedure enhanced with its plausible utility to the daily practice of orthopaedic surgeons, represented another focal point.
In this sense, the research started from the validation of the 3D assessment of femoral morphometric parameters. Veterinary literature reports tons of papers describing several methodologies for obtaining femoral measurements through different diagnostic techniques. Furthermore, bibliography presents lot of angles values that are currently adopted and considered as reference parameters for most of the corrective osteotomies. Additionally, in the recent past an increased emphasis on 3D approach grown but little if any attention was devoted to 3D measurements. This trend represented in the authors’ mind the gap with the current knowledge and, thus, an area to be deeply investigated. Indeed, to the best of author knowledge, there were no papers documenting the assessment of 3D femoral axes and angles in veterinary medicine, with no 3D protocol described. In addition, currently available canine femoral measurements related to frontal, sagittal and transverse deformities have only been computed in bi-planar projections, whether acquired from 2D or 3D imaging models.
Therefore, starting from the accepted human methods and from the features definition in veterinary literature, we proposed a new approach.
The first study was designed to define a 3D methodology, introducing a consistent and quantitative method for the assessment of femoral morphometric parameters in 3D geometrical models. To validate the proposed approach, accurate geometric data were necessary and, therefore, we opted for meshes obtained by a 3D scanner, instead of CT images. Once the validation of the was stated, our focus was directed towards the evaluation of the precision of the proposed 3D protocol.
The validation of a novel diagnostic test requires verification of the repeatability, defined as the strength of agreement between repeated measurements of the same samples performed from one examiner, and the reproducibility as well, that express the same variance but between a group of observers.
Furthermore, the accuracy of the measurements indicates how close the measurements took with the investigated technique to a true value (gold standard). Therefore, a second project was designed to test the precision of three diagnostic techniques, two largely diffuse (Rx and TC) one recently introduced in veterinary (3D), for the measurement of femoral angles.
The second purpose of this study was the investigation of the potential application of the algorithm implemented in a computer-aided-design (CAD) software, using CT data. Considering that for the first study we worked with 3D scanner data, the main aim at this point of the research was represented by the enhancement of the presented 3D protocol for diagnostic purposes. In the author opinion, changing the source of data was necessary because of the availability of CT and MRI equipment in veterinary practice.
Finally, the last goal of this project was the translation of the application of 3D computation to the surgical field. The current research contemplates the fact that the augmented interest on 3D computation is not only relevant for diagnostic reasons, but also for surgery. Thus, the correlation between the diagnostic utility of the 3D approach and its plausible practice for surgery purposes was the object of the final study. The starting point was suggested by veterinary literature that reports in few papers the development and application of surgical devices used to perform assisted-correction of bone deformities.
These surgical tools are designed through 3D geometrical models and act both as precise intraoperative localizers of osteotomy corrective landmarks and surgical saw guides.
Three-dimensional assessment of a bone conformation may improve the understanding and evaluation of bone deformities and occurring joints malalignment. In this sense, the localization of the CORA as well as the accuracy of the orientation of the osteotomy-cutting plane may be significantly upgraded through a 3D approach.<br>La tesi di dottorato presentata è stata concepita nell’ambito di un più ampio progetto che comprende molteplici studi tra loro intrinsecamente correlati.
L’obiettivo principale del lavoro consiste nella descrizione delle basi teoriche, sviluppo nonchè applicazione pratica nel campo della diagnostica per immagine e chirurgia di un nuovo protocollo 3D utilizzato per la misurazione di angoli nel femore del cane.
Lo scopo successivo è stato quello di descrivere il valore traslazionale della procedura analitica qui presentata.
Il primo passo dell’intera ricerca è rappresentato dalla validazione della metodologia. Un nuovo algoritmo sviluppato consente, per mezzo di un CAD software di comune utilizzo (Rhinoceros), di eseguire la computazione di angoli in 3D. Il secondo step ha previsto la verifica della ripetibilità e della riproducibilità di tale metodica che è stata comparata con quelle più comuni effettuate con radiografia e Tac. Infine, con l’ultimo studio abbiamo traslato le basi teoriche in applicazione chirurgica andando a creare, per mezzo dell’algoritmo elaborato, delle dime chirurgiche. Questi strumenti intra-operatori sono molto utili durante la chirurgia per le osteotomie correttive in quanto si accoppiano perfettamente nel punto di deformità e consentono di guidare l’osteotomia dell’osso.
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Serpe, Gaétan. "Morphologie et permeabilite des melanges polyethylene-polyamide." Paris 6, 1988. http://www.theses.fr/1988PA066536.
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Etude des proprietes hydrodynamiques du melange (vitesse de cisaillement, temperature, tension interfaciale, viscosite) et de la technique de mise en forme utilisee en relation avec la taille moyenne de la dispersion. Analyse de la morphologie montrant que la taille moyenne de la phase dispersee resulterait d'un equilibre entre un effet de fragmentation et un effet de coalescence des nodules. Formation d'un copolymere greffe par addition au melange d'un copolymere ethylene-anhydride maleique
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Schoeman, Liezl. "Evaluation of polarisation parameters as predictor of morphology of nickel electrodeposits produced from sulfate electrolyte." Thesis, University of Pretoria, 2018. http://hdl.handle.net/2263/66022.
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Industrial electrowinning of nickel requires specific control and optimisation of the electrolyte composition, the presence of impurities, the addition of additives (to achieve particular deposit properties) and the operating parameters (such as pH and temperature) in order to produce electroplated nickel of high quality and desirable morphological characteristics. Without understanding and strict control of the electrocrystallisation process, nickel can delaminate due to internal strain, frequent pitting of the deposit can occur, current efficiency can decrease significantly or dendritic growth can cause short circuits. Prediction of the effect of the electrolyte composition and operating parameters on the structure and morphology of the plated metal in the early stages of electrodeposition could be paramount to controlling and/or eliminating such problems during the later stages of electrowinning. Such prediction remains an enormous challenge.
The use of polarisation measurements to investigate the electrocrystallisation process and predict the outcome of the resulting deposit quality and morphology was used with variable success in early investigations. Some of the main problems with techniques such as cyclic voltammetry and the later-developed continuous monitoring techniques are inaccuracy and unreliability of the results. The aim of the present work was to develop a galvanodynamic polarisation technique to investigate the electrocrystallisation process of nickel metal from sulfate electrolyte in order to examine the effect of electrolyte composition, operating parameters and the presence of impurities or additives. This could then be used to optimise these factors and thereby predict the outcome of the quality and morphological characteristics of the produced nickel deposit. The idea was that a relatively easy and concise method needed to be developed that could be implemented industrially to monitor and detect problems in the early stages of electrowinning in order to take control and rapid corrective action if needed.
A two-step galvanodynamic method was developed to measure plating and nucleation potentials accurately and repeatably. It was shown that the relationship between the two potentials could be used as an indication of the effect of electrolyte composition and operating parameters on the composition and morphological characteristics of the produced nickel electrodeposits. This method, together with studies on the buffering capabilities of electrolyte solutions, can be used to investigate the influence of additives and impurities industrially introduced during the process in the electrolytes. Typical variations in commercial electrolytes and nickel electrodeposits were evaluated using this developed technique and results compared with those obtained from synthetic electrolyte. The insights gained from this work can be useful to predict and manipulate the electrodeposition process in order to optimise electrocrystallisation and the production of high quality nickel deposits.<br>Thesis (PhD)--University of Pretoria, 2018.<br>Materials Science and Metallurgical Engineering<br>PhD<br>Unrestricted
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Mehnert, Andrew. "Digital Morphometry : A Taxonomy Of Morphological Filters And Feature Parameters With Application To Alzheimer's Disease Research." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 1994. https://ro.ecu.edu.au/theses/1468.
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In this thesis the expression digital morphometry collectively describes all those procedures used to obtain quantitative measurements of objects within a two-dimensional digital image. Quantitative measurement is a two-step process: the application of geometrical transformations to extract the features of interest, and then the actual measurement of these features. With regard to the first step the morphological filters of mathematical morphology provide a wealth of suitable geometric transfomations. Traditional radiometric and spatial enhancement techniques provide an additional source of transformations. The second step is more classical (e.g. Underwood, 1970; Bookstein, 1978; and Weibull, 1980); yet here again mathematical morphology is applicable - morphologically derived feature parameters. This thesis focuses on mathematical morphology for digital morphometry. In particular it proffers a taxonomy of morphological filters and investigates the morphologically derived feature parameters (Minkowski functionals) for digital images sampled on a square grid. "As originally conceived by Georges Matheron, mathematical morphology concerns the analysis of binary images by means of probing with structuring elements [typically convex geometric shapes]" (Dougherty, 1993, preface). Since its inception the theory has been extended to grey-level images and most recently to complete lattices. It is within the very general framework of the complete lattice that the taxonomy of morphological filters is presented. Examples are provided to help illustrate the behaviour of each type of filter. This thesis also introduces DIMPAL (Mehnert, 1994) - a PC-based image processing and analysis language suitable for researching and developing algorithms for a wide range of image processing applications. Though DIMPAL was used to produce the majority of the images in this thesis it was principally written to provide an environment in which to investigate the application of mathematical morphology to Alzheimer's disease research. Alzheimer's disease is a form of progressive dementia associated with the degeneration of the brain. It "is the commonest type of dementia and probably accounts for half the dementia of old age" (Forsythe, 1990, p. 21 ). Post mortem examination of the brain reveals the presence of characteristic neuropathologic lesions; namely neuritic plaques and neurofibrillary tangles. They occur predominantly in the cerebral cortex and hippocampus. Quantitative studies of the distribution of plaques and tangles in normally aged and Alzheimer brains are hampered by the enormous amount of time and effort required to count and measure these lesions. Here in a morphological algorithm is proposed for the automatic segmentation and measurement of neuritic plaques from light micrographs of post mortem brain tissue.
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Lee, Jiho. "Impact of process parameter modification on poly(3-hexylthiophene) film morphology and charge transport." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50409.
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Organic electronics based on π-conjugated semi-conductor raises new technology, such as organic film transistors, e-paper, and organic photovoltaic cells that can be implemented cost-effectively on large-area applications. Currently, the device performance is limited by low charge carrier mobility. Poly(3-hexylthiophene) (P3HT) and organic field effect transistors (OFET) is used as a model to investigate morphology of the organic film and corresponding electronic properties. In this thesis, processing parameters such as boiling points and solubility are controlled to impact the micro- and macro-morphology of the film to enhance the charge transport of the device.
Alternative approach to improve ordering of polymer chains and increase in charge transport without post-treatment of P3HT solution is studied. The addition of high boiling good solvent to the relatively low boiling main solvent forms ordered packing of π-conjugated polymers during the deposition process. We show that addition of 1% of dichlorobenzene (DCB) to the chloroform based P3HT solution was sufficient to improve wetting and molecular structures of the film to increase carrier mobility.
Systematic study of solvent-assisted re-annealing technique, which has potential application in OFET encapsulation and fabrication of top-contact OFET, is conducted to improve mobility of OFET, and, to suggest a cost-effective processing condition suitable for industrial application. Three process parameters: boiling point, polarity, and solubility are investigated to further understand the trend of film response to the solvent-assisted technique. We report the high boiling non-polar solvents with relatively high RED values promote highest improvement in molecular packing and formulate crystalline structure of the thin film, which increases the device performance.
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Ghosh, Shilpi. "ASSESSMENT OF MORPHOLOGY AND HEMODYNAMICS IN NORMAL AND REMODELED MICROVASCULATURE WITH PARAMETER SENSITIVITY ANALYSIS." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/437.
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The goal of this study was to compare the morphological and hemodynamic characteristics of normal and remodeled vascular networks in the mouse gracilis muscle. To this end, previously developed models to assess flows and vascular branching were used to assess the normal and remodeled microcirculatory networks. The analysis revealed that the average individual vessel flow rates for vessels of similar caliber and total volumetric flow rates in the networks do not change for vessels of the same caliber after remodeling. Connectivity changes and average diameters primarily change in the larger arterioles after remodeling. A few correlations could be made between architectural and flow properties, however, further modifications in the analysis methods can make future correlations more effective. In order to improve the analysis a parameter sensitivity analysis tool (PSAT) was developed. The PSAT is helpful in teasing apart the individual effects of morphological parameters such as vessel connectivity, vessel diameters, and vessel lengths. In future, another important component that allows the investigator to exclusively alter vessel quantities for all the orders can be added to improve the PSAT.
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Ford, Dawn K. "Sublethal effects of stressors on physiological and morphological parameters in the diamondback terrapin, Malaclemys terrapin." Ohio University / OhioLINK, 2005. http://www.ohiolink.edu/etd/view.cgi?ohiou1113574293.
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King, Judy A. "Adaptation of Striped Bass to Sea Water Following Direct Transfer from Freshwater: Morphological, Biochemical, and Physiological Parameters." Digital Commons @ East Tennessee State University, 1987. https://dc.etsu.edu/etd/2932.
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There has been heightened interest in the biology of striped bass (Morone saxatilis) because of increased pollution in their native spawning grounds and because of their extensive use in landlocked sport fisheries. Their euryhalinity makes them an excellent species for osmoregulation studies. The objective of this research was to study the rate of adaptation of striped bass gills to sea water (3% salt) after direct transfer from freshwater using biochemical (ion transport enzyme levels), physiological (chloride efflux), and ultrastructural methods. Striped bass have specialized osmoregulatory cells located on the interlamellar and afferent surfaces of their gill filaments as shown by light microscopy (LM), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). SEM studies show that apical pit (opening of one or more chloride cells) morphology changes during sea water adaptation, and the number of apical pits increases by 32.5% after two weeks in sea water. Chloride cell size and number, extent of basolateral tubular system, and number of mitochondria per chloride cell appear to increase upon adaptation to sea water. Sodium-potassium adenosine triphosphatase (Na,K-ATPase) activity is maximal on day 3 after transfer to sea water. Studies suggest that cortisol may act as a hormonal mediator for long term adaptation to sea water. The general morphology of both freshwater and sea water adapted fish gills were studied. Preliminary studies indicate that the osmium-dimethylsulfoxide-osmium method can be used to investigate intracellular structural changes in striped bass gills. Since the chloride cells are associated with the afferent surface of the filament, the blood supply to that area is also of great interest in osmoregulation studies. Studies of the gill vasculature using corrosion casting (i.e. filling blood vessels with plastic resins) and SEM indicate that the blood vessel distribution in the striped bass gill is similar to that of other euryhaline species with arterio-arterial, arterio-venous, and nutritive pathways. Blood flow may be controlled at a variety of places by sphincters, shunts and cellular contraction. Correlation of these biochemical, physiological and anatomical measurements will aid in the understanding of the process of adaptation to sea water. (Abstract shortened with permission of author.)
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Maranhão, Maria Olivia Amato. "Variações geomorfológicas inter-decadais da Barreira Costeira do Itapocú – SC, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/132265.
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A Barreira Costeira do Itapocú está localizada na porção norte do litoral do estado de Santa Catarina sobre os domínios dos municípios de Araquari e Barra Velha. Em sua porção central a barreira apresenta-se segmentada por influência da desembocadura do rio Itapocú. Registros históricos evidenciam a ocorrência comum, na barreira, de episódios de transposição de sedimentos devido à ocorrência de eventos de sobrelavagem. A barreira e os subambientes associados foram mapeados para os anos de 1938, 1957, 1978, 2005 e 2012. Adicionalmente, foram aplicados três índices de vulnerabilidade para os depósitos de sobrelavagem, conforme metodologia proposta por Garcia et al. (2010) – OSR, MOIR e CBO, e foram analisados os parâmetros granulométricos do sistema praia-duna atual e dos depositos de sobrelavagem em dois perfis transversais à barreira. A análise geomorfológica mostrou que as principais modificações observadas ao longo do tempo na BCI estiveram relacionadas à migração do canal de conexão da laguna com o oceano, anteriormente à sua fixação, bem como a eventos de sobrelavagem da barreira. Os depósitos de sobrelavagem apresentaram elevada frequência de ocorrência ao longo da barreira (OSR), onde a maior pôde ser observada no ano de 1957, atingindo 42% de todo o comprimento da barreira, em seu setor sul, e 60% no setor norte. Este padrão apresentou diminuição ao longo do tempo, e em 2012 cerca de 1% do comprimento do setor sul da barreira costeira apresentou sobrelavagem, enquanto o setor norte exibiu 19%. MOIR, índice referente às intrusões históricas de sobrelavagem e representando a recorrência de um máximo de intrusão, foi aplicado em intervalos de 10 metros e mostrou que eventos de transposição de sedimentos tendem a ocorrer todos os anos na área estudada, atingindo até 40 metros de intrusão. Para o ultimo ano de análise, 2012, o índice CBO apresentou três casos de valor máximo, indicando máxima vulnerabilidade de um rompimento da barreira costeira. No estudo comparativo entre os diferentes compartimentos do sistema praia-duna e dos depósitos de sobrelavagem não foi possível distinguir um claro padrão entre os subambientes com base nos parâmetros granulométricos. Entretanto, este padrão de não distinção pode indicar a usual influência de processos marinhos costeiros de sobrelavagem, atuantes sobre o sistema deposicional eólico.<br>The Itapocú coastal barrier is located in the northern coast of Santa Catarina State, on the domain of Barra Velha and Araquari cities. In its central part the barrier is segmented due to the influence of the Itapocú river mouth. Historical records demonstrate that the barrier experiments frequent overwash events. The barrier and associated environments were mapped for 1938, 1957, 1978, 2005 and 2012 dates. Additionally, three vulnerability indexes to the washover deposits were applied, according to Garcia et al. (2010) – OSR, MOIR and CBO, and the granulometric properties were analyzed for the modern beach-dune system and washover deposits in two cross sections. The morphological analysis showed that the main changes observed were related to inlet migration, before its fixation in 2011, and also to overwash events. The washover deposits showed high frequency of occurrence along the barrier (OSR), with the greater occurring in 1957, reaching 42% of its entire length in the south, and 60% in the north section. This pattern presented a decrease behavior over time, and in 2012 approximately 1% of the barrier length was overwashed in the south section and 19% in the north. The index MOIR, related to historical sediment intrusions of overwash processes, and representing a maximum intrusion was applied in 10m intervals and showed that washover events tend to occur in all years in the ICB, reaching 40m of intrusion. For the last year analyzed, 2012, the CBO index showed 3 situations of maximum intrusion, indicating 100% of barrier breaching vulnerability. In the comparative granulometric study, it was not possible to characterize the environmental deposits based on the granulometric parameters. However, non-discretize pattern can indicate the influence of coastal marine processes (overwash) acting over the eolian deposits.
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Krohn, Franziska [Verfasser]. "Untersuchungen zur Morphologie des Meatus acusticus externus in Relation zu funktionellen Parametern des stomatognathen Systems / Franziska Krohn." Greifswald : Universitätsbibliothek Greifswald, 2017. http://d-nb.info/1149080973/34.
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Özdemir, Sibel [Verfasser]. "Einfluss der bioverfahrenstechnischen Parameter auf das Wachstum, die Morphologie und die Aromaproduktion ausgewählter Basidiomyceten (Speisepilze) / Sibel Özdemir." Düren : Shaker, 2020. http://d-nb.info/1225654025/34.
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Ibrahim, Ahmed Hamed. "Effect of material and processing parameters on the morphology of aluminium foams produced by the PM route." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976253623.
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Dixit, Vikas. "Grain-Boundary Parameters Controlled Allotriomorphic Phase Transformations in Beta-Processed Titanium Alloys." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1357240292.
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Tong, Si Son. "Cartographie par télédétection des espaces intertidaux du Vietnam." Thesis, Reims, 2016. http://www.theses.fr/2016REIMS038.
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Les espaces intertidaux correspondent à des estrans soumis à un régime de marée montrant un certain marnage. Il s’agit d’étendues basses constituées d’alluvions récentes, situées à proximité des mers à marée et envahies par les eaux lors des marées hautes. Les espaces intertidaux au nord du Vietnam sont sous l’influence de la mousson associé à un régime de marée diurne. Ils s’étendent sur environ 350 km le long de la côte. Le sud de la zone d’étude est marqué par le delta du fleuve Rouge et le fleuve Thai Binh qui apportent une grande quantité de sédiments, entraînant des estrans à dominante vaseuse ou vaso-silteuse. Le centre de la zone d’étude est caractérisé par des estrans noirs. L’exploitation du charbon dans la région de Cam Pha et de Ha Long expliquent un apport énorme de particules carbonées qui créent des estrans vaseux noirs tout à fait originaux. Cependant, les espaces intertidaux de ce secteur n’ont jusqu’à présent pas fait l’objet d’une étude détaillée. La présente thèse a pour objectif de répondre à quatre questions concernant ces espaces intertidaux :1. Comment la morphologie des estrans a-t-elle évolué depuis les 25 dernières années ?2. Quels sont les sédiments constituant ces estrans : granulométrie, teneur en carbonates, teneur en matière organique, etc. ?3. Quels sont les paramètres biophysiques de surface des estrans ?4. Quels sont les facteurs qui influencent les changements de morphologie des estrans et comment ces derniers peuvent-ils évoluer ?Afin de répondre à ces différentes questions, des images de télédétection tant optiques (Landsat, Spot, Aster, etc.) que radar (Sentinel-1A) ont été utilisées. Les analyses spatiales ont été réalisées à l’aide d’un système d’information géographique (SIG).Le présent travail est une thèse financée dans le cadre du programme liant l’Université de Sciences et Technologies de Hanoï et l’Université de Reims - Champagne-Ardenne, membre du consortium USTH<br>Tidal flat is a special environment suffering tidal regime in which tidal flats are submerged during flood tide and exposing the air during ebb tide. Tidal flats in the north coast in Vietnam are constituted in diurnal tide condition with tide range varying from 0.3m to 3.5m. Along 350km coastline of the study area, the diversity of constituent conditions formed various tidal flats with different characteristic. Tidal flats in the southern part of the study area are fed by sediment from two large river systems, in the middle part forms the coal tidal flats, but the only sandy sediment along with tide domination constitute the large tidal flats in the north coast of the study area. This study apply remote sensing techniques and GIS tools to solve four scientific issues including: the evolution of tidal flats over periods from 1989 to 2014, the characteristics of sediments in tidal flats, the surface parameter of tidal flats, and the forcing factors which influence the future change of tidal flats. The results of the study shows that, tidal flats in the north coast in the study area are dramatically eroded but the tidal flats in the south coast are deposition by the concentration of fine sediments. In total 14 forcing factors, the coastal nature factor has highest forcing to the deposition of tidal flats. However, the factors of wind-wave effect and tidal flat width have negative influence to deposition. Consequently, the highest potential for future deposition of tidal flats are around the river mouths in the south coast but no potential for future deposition is in tidal flats in the north of the study area. This study is implemented in the framework of the cooperation between University of Science and Technology Ha Noi (USTH) and Université de Reims Champagne-Ardenne (URCA)
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Tschirner, Anika [Verfasser]. "Vergleich der Einflussnahme herzinsuffizienzbedingter sowie tumorassoziierter Kachexie auf Parameter der kardialen Morphologie und Funktion im Rattenmodell / Anika Tschirner." Berlin : Freie Universität Berlin, 2012. http://d-nb.info/1029848270/34.
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Beery, Timothy Russell. "Parameters of Articulation: an Introduction to Analysis of Form in Electroacoustic Music." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1557400355694011.
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Van, Wyhe Robert. "The effects of yeast derivatives and adult cecal droppings on growth parameters and intestinal morphology in commercial broilers." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/34146.
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The development of the intestine and early establishment of commensal bacteria is important for rapid growth and enteric disease resistance of the modern broiler. Three studies measured the impact of yeast derivatives in diets of broilers. The objective of the first study was to determine if yeast products alone or in combination effected performance or gut morphology of broilers during a mild coccidia challenge. Day-old Cobb 500 chicks were placed in floor pens on litter seeded with coccidia and fed diets with or without yeast products. The objectives of the second and third studies were to 1) evaluate the effect of feeding cecal droppings collected from heavy (HW) or low weight (LW) broilers on performance and 2) to determine if dietary supplementation with yeast derivatives would effect growth and gut morphology in broilers fed the cecal droppings from HW or LW populations. Cobb 500 chicks were divided into two groups (HW or LW microflora; n=1400/group) and given access to the cecal droppings for a period of 48 hours then given 1 of 4 diets. The results from the studies showed that in a challenge setting, yeast products were not detrimental to growth. Inclusion of single yeast derivative or nucleotides was more beneficial than combination of these products for intestinal morphology. Cecal droppings from HW vs. LW birds did not have an effect on performance of birds. However, interactions of cecal dropping source and diet did affect intestinal morphology.<br>Master of Science
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CIASCA, THATYANA C. "Controle de parametros de irradiacao laser para selamento de tubulos dentinarios." reponame:Repositório Institucional do IPEN, 2003. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11527.
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Made available in DSpace on 2014-10-09T12:52:54Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:54Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia)<br>IPEN/D-MPLO<br>Intituto de Pesquisas Energeticas e Nucleares, IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo
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Dumlu, Elif. "A Method to Examine Passive and Active Force Production, and their Correlations with Muscle Morphological Parameters for Healthy Children." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254538.
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Muscle morphological and mechanical properties play a crucial role in explaining the mechanisms underlying the development and progression of muscle weakness, joint stiffness, muscle contraction, and the resultant loss of motor function in children. Information in the literature about how muscle architecture correlate with muscle force production in passive and active conditions in children is very limited. Therefore, new information regarding muscle mechanics and morphology has the possibility to contribute to the improvement of more targeted and more effective treatments for children. The goal of this project is to develop a feasible experimental method to examine passive and active muscle force production capacity in the lower limbs in healthy children and to analyse the correlations of muscle morphological parameters obtained from diffusion tensor images(DTI) and force generation capacity in passive and active conditions. For this project, 10 healthy children were recruited and tested in Astrid Lindgren Children’s Hospital, Karolinska University Hospital. The chosen muscles to examine was medial gastrocnemius, soleus, and tibialis anterior. Neuroflexor device was used for the passive force measurements. A fixed version of a hand-held dynamometer was utilized for the active measurements. In order to capture the muscle activities during the movement, surface electromyography was collected simultaneously. The findings from both measurements gave consistent results. In terms of the passive resistance force measured by NF, the characteristic force peaks can be further analyzed to separate different contributions for more informative results. Regarding the correlations, stable and high correlations were determined between the volume(v) and both force measurements except the medial posterior SOL for MVC. Fascicle length (FL) correlations showed more of a variety since high correlation was observed for PF and FL while negligible correlation was found between P3 and FL. Further research with more parameters is needed to obtain more reliable results. Overall, not only healthy subjects but also children who suffer from muscle weakness and disabilities should be investigated for further examination.
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Gale, Jody A. "A Simple Model to Predict Optimal Harvest Time of Alfalfa Using Near Infrared Reflectance Spectroscopy, Environmental, Morphological, and Growth Parameters." DigitalCommons@USU, 1988. https://digitalcommons.usu.edu/etd/7454.
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Knowledge of relationships between nutrient levels, yield, maturity, and environmental influences on alfalfa (Medicago sativa L.) are necessary to estimate when to harvest alfalfa to maximize quality and yield. Objectives were to document the change in nutrient content, yield, and growth stage of alfalfa grown in Utah as it matures and to develop a simple model to predict optimal harvest date. The study involved three locations in major alfalfa producing regions in Utah. Samples were collected from three commonly grown alfalfa varieties between 26 April and 26 September in 1987. Maximum and minimum levels of crude protein (CP) observed were 32.8% to 16.2%, acid detergent fiber (ADF) 39.4% to 14.0%, and dry matter (OM) 31.7% to 14.3%. Maximum yield of 7.0 Mg ha-1 for a single harvest was observed. The growth stage and average yield in Mg ha-1 for all varieties and harvests collected were: prebud 3.6; midbud 4.2; and late bud to early bloom 4.9. As alfalfa matured CP% declined, ADF% increased, and DM% increased. Criteria used to estimate optimal harvest date was achieving not less than 20.0% CP, at least 29.0% ADF, but not more than 31.0% ADF. The estimated optimal harvest date was determined 63.3% of the time by not exceeding 31.0% ADF. Early to midbud were characteristic growth stages of the estimated optimal harvest date occurring 34.4% and 41.0% respectively. Midbud stage was characterized by elongation of the peduncle at second and third axillary bud positions. Accumulated growing degree hours (AGDH) were calculated using the ASYMCUR modeling concept. Height models were developed by averaging AGDH at 5 cm increments of shoot height. Models developed from the Nephi site were used to predict data from other sites. These models made about 37% acceptable predictions ranging from 0-100%. The general model made 23% acceptable predictions, variety models 47%, harvest models 43%, and 36% from specific data models. The general model, with a coefficient of variation (CV) of 14.6%, made fewer acceptable predictions than specific models having CV of 11.1% and 6.0%. Height models generated using the ASYMCUR concept were inefficient in predicting growth of alfalfa. This may be due to inaccurate estimates of when regrowth began, inaccurate weather data, and a variety of temperature related stresses which reduces the growth rate of alfalfa per unit of growing degree hours. Development of stress factor in cosine equations, improved data collection, and additional model generation and testing, could reduce variability and increasing percentage of acceptable predictions.
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Anciaux, Maëlle. "Prognostic value of macro- and microenvironment parameters in esophageal cancer: Exploration of candidate biomarkers at morphological, histopathological and molecular levels." Doctoral thesis, Universite Libre de Bruxelles, 2020. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/312668.
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Le cancer de l’œsophage est un cancer particulièrement agressif, avec 450 000 nouveaux cas par an dans le monde. Malgré les récentes innovations thérapeutiques en oncologie, la radiochimiothérapie reste le traitement standard dans ce cancer. Ce traitement lourd est pourtant peu efficace, puisque la survie des patients 5 ans après le diagnostic atteint seulement 20%. Une meilleure connaissance des mécanismes moléculaires ainsi que de nouveaux marqueurs pronostics sont nécessaires afin de réaliser une avancée significative dans la compréhension du cancer de l’œsophage. L’objectif de ce travail concerne l’investigation de nouveaux paramètres pronostiques, macro- ou microenvironnementaux.Dans ce cadre, nous avons investigué l’impact de la composition corporelle et, plus particulièrement, de la qualité du tissu adipeux des patients sur leur survie générale. Les patients souffrant d’un cancer de l’œsophage présentent en général un statut nutritionnel complexe :l’obésité est un facteur de risque de développement d’un adénocarcinome de l’œsophage, tandis que les carcinomes épidermoïdes se développent fréquemment chez des patients malnutris. Nous avons montré que l’atténuation du tissu graisseux au CT-scan a un impact pronostique important. Spécifiquement, une faible densité de la graisse sous-cutanée et viscérale sont des facteurs pronostiques bénéfiques majeurs. Des résultats similaires ont été publiés pour d’autres cancers digestifs, notamment par notre équipe pour le cancer colorectal métastatique. Cependant, les mécanismes biologiques sous-tendant les variations de densité de ces tissus graisseux restent encore incertains. Un tissu graisseux de haute densité refléterait des adipocytes beiges, pauvres en triglycérides et métaboliquement plus actifs. Alors que des phénomènes extrinsèques à la tumeur pourraient amorcer ce phénomène, les facteurs sécrétés par la tumeur pourraient empirer ce processus et impacter l’état de santé général du patient. Nos résultats suggèrent que les traitements pourraient également aggraver ce mécanisme. L’analyse d’échantillons sanguins et de biopsies graisseuses de patients souffrant de cancers gastro-intestinaux nous permettra de dévoiler des marqueurs associés à la variation de densité graisseuse et de faire la lumière sur les mécanismes biologiques impliqués.Depuis quelques années, les motifs histopathologiques de croissance tumorale ont été l’objet de plusieurs études. Associés aux mutations génétiques de la tumeur mais aussi à son microenvironnement, ces motifs de croissance constituent le reflet de processus oncogéniques complexes. Nous avons d’abord exploré l’impact pronostique des motifs histopathologiques de croissance tumorale œsophagienne sur deux cohortes de patients. Nous avons confirmé l’impact pronostique négatif des tumeurs infiltrantes par rapport aux tumeurs expansives. Les tumeurs infiltrantes étaient également plus fréquemment associées à un Stade T et N plus avancés, ainsi qu’à la présence d’emboles lymphovasculaires et d’infiltrations péri-nerveuses. Nous avons ensuite exploré les voies de signalisation classiquement dérégulées dans la carcinogenèse sur la cohorte composée de données publiques ;ces analyses nous ont permis d’identifier l’angiogenèse, la transition épithélio-mésenchymateuse et l’inflammation comme étant surexprimées dans les tumeurs infiltrantes. Nous avons pu identifier OLR1, SFRP4 et CXCL9 comme étant trois gènes intéressants à investiguer pour chacune de ces voies, respectivement.Ces résultats n’ont pas été confirmés par qPCR dans la cohorte de validation. La qualité de l’ARN et le traitement pré- opératoire de ces patients ont réduit le nombre de patients analysables et vraisemblablement contribué à un biais important d’expression des mécanismes biologiques. Une analyse plus extensive de ces trois voies de signalisation pourrait distinguer des acteurs importants du développement de ces motifs de croissance tumorale.En conclusion, ce travail exploratoire a permis de définir plusieurs acteurs du pronostic des patients atteints d’un cancer de l’œsophage. Des analyses moléculaires supplémentaires permettront d’aborder les voies biologiques sous- tendant le développement des motifs histopathologiques de croissance tumorale, d’une part et de variation de densité du tissu graisseux, d’autre part. Ce travail permettra de dévoiler des aspects complexes et encore peu étudiés de l’agressivité des tumeurs œsophagiennes.<br>Doctorat en Sciences biomédicales et pharmaceutiques (Médecine)<br>info:eu-repo/semantics/nonPublished
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Hasan, Md Mehedi. "Genetic investigation of body morphological traits in Penaeus monodon and their relationship to shrimp production." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29191.
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The black tiger shrimp (Penaeus monodon) is the second most commercially important aquaculture shrimp species in the world. In Australia, P. monodon aquaculture is a drought-proof industry and has an enormous potential for its economically and environmentally sustainable expansion. However, a significant research gap needs to be addressed for implementation of advanced breeding programs. In the first two research chapters, I reported that, (i) most published studies have focused on genetic improvement of growth and survival traits, however there are few studies on body shape and body colour traits; (ii) significant G×E was present for survival traits (rg = 0.51 ± 0.09).
In the next chapters, I developed and optimized protocols for measuring morphological and body colour traits of shrimp from digital images. In the last research chapter, I performed quantitative genetic analyses of body size, shape and body colour traits. The genetic parameter estimates indicated that the body size and weight traits are moderately heritable (h2 : 0.28 to 0.36), and heritability of body shape traits were low (h2 : 0.003 to 0.09). A strong positive genetic correlation was revealed among the key body size and growth traits (rg = 0.96 to 0.99) suggesting genetic improvement of these traits can be done simultaneously. The heritability of the body colour traits ranged from 0.05 to 0.35, suggesting there is potential for genetic improvement of these traits. There was a strong genetic correlation between cooked and uncooked body colour, suggesting selection on live animals will improve the colour properties of cooked shrimp. Taken together, the findings of the current project will assist in designing future shrimp breeding programs.
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BERNACCHIA, NATASCIA. "Measurement techniques based on image processing for the assessment of biomedical parameters." Doctoral thesis, Università Politecnica delle Marche, 2014. http://hdl.handle.net/11566/242751.
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L’imaging biomedicale rappresenta un tema importante nel settore della diagno-si e della ricerca clinica. I software per l’analisi delle immagini permettono di individuare automaticamente informazioni non visibili all’occhio umano. Lo sviluppo tecnologico e l'u-so di diverse modalità di imaging aprono una sfida circa la necessità di analizzare un volu-me significativo di immagini per garantire informazioni di alta qualità per diagnosi, tratta-mento e monitoraggio, in strutture cliniche così come a casa.
I sistemi di misura comunemente impiegati in ambiente clinico richiedono il contatto con il soggetto, provocando discomfort e risultando non adatti per tempi di osservazione lunghi. D'altra parte, il contatto può alterare la forma, la composizione dei campioni, e tecniche al-lo stato dell'arte potrebbero richiedere molto tempo e fornire bassa risoluzione.
Questa tesi di dottorato presenta una serie di applicazioni sperimentali originali dell’analisi di immagini in campo biomedicale. L'obiettivo è quello di sviluppare e validare nuove me-todologie, basate sull’analisi di immagini, per la misura senza contatto di grandezze di di-versa natura.
Lo studio tratta come prima applicazione l'estrazione di caratteristiche morfologiche di ag-gregati cellulari per studiare i processi di rigenerazione in cuori infartuati, poi lo sviluppo di una metodologia senza contatto per la misura delle proprietà meccaniche dei tendini rotulei di coniglio sottoposti a prove di trazione, e di metodi innovativi per il monitoraggio dei pa-rametri fisiologici (frequenza cardiaca e respiratoria, variazioni di volume del torace) usan-do sistemi quali il dispositivo Kinect ™ e una camera digitale.
I banchi sperimentali, progettati in questo lavoro, sono stati validati, ottenendo un'elevata correlazione rispetto ai metodi di riferimento. I sistemi, seppur diversi per molti aspetti, hanno dimostrato di essere adatti ai rispettivi compiti, confermando la fattibilità dell’approccio basato sull’imaging biomedicale.<br>Biomedical imaging represents an important topic in the field of diagnosis and clinical research. Image analysis and processing software also helps to automatically identify what might not be apparent to the human eye. The technological development and the use of different imaging modalities create more challenges, as the need to analyse a significant volume of images so that high quality information can be produced for disease diagnosis, treatment and monitoring, in clinical structures as well as at home.
All the measurement systems routinely used in clinical environment require to be put in di-rect contact with the subject, which in some cases can be uncomfortable or even non-suited for long monitoring. On the other hand, in some cases contact could alter shape or composition of the samples under study, and state-of-the-art techniques could require a lot of time and provide very low resolution.
This doctoral thesis presents a series of new experimental applications of the image analysis and processing in the biomedical field. The aim was to develop and validate new method-ologies, based on image analysis, for non contact measurement of quantities of different nature. The study is focused on the extraction of morphological characteristics of cell ag-gregates to assess of the regeneration processes in infarcted hearts, the design of a non con-tact methodology to measure mechanical properties of rabbit patellar tendons subjected to tensile tests, the development of new methods for the monitoring of physiological parame-ters (heart and respiration rate, chest volume variations) through the use of image acquisi-tion systems, as Kinect™ device and a digital camera.
The experimental setups, designed in this work, were validated, showing high correlation respect to the reference methods. Imaging systems, although so different in many aspects, have demonstrated to be suitable for the respective tasks, confirming the feasibility of the imaging approach in the biomedical field.
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Martins, Priscila Oliveira 1983. "Cinética de absorção de silício por cultivares de cana-de-açúcar e de arroz /." Botucatu : [s.n.], 2010. http://hdl.handle.net/11449/86436.
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Orientador: Carlos Alexandre Costa Crusciol<br>Banca: Ciro Antonio Rosolem<br>Banca: Rafaella Rossetto<br>Resumo: O silício é considerado, para o arroz e a cana-de-açúcar, um elemento de relevada importância, pois, em muitas situações, tem proporcionado maiores tolerâncias a estresses bióticos e abióticos. No entanto, em muitas situações não tem sido constatado efeito positivo do silício, o que pode estar relacionado a fatores genéticos quanto à capacidade em adquirir silício em baixa disponibilidade e/ou utilizar o elemento absorvido com maior eficiência. Os mecanismos de absorção presentes na interface solo-raiz são influenciados por eficiência fisiológica e pela morfologia radicular das plantas, representada pelo comprimento, superfície e diâmetro das raízes. Assim, o presente trabalho teve por objetivo, mediante o acompanhamento da cinética de absorção de Si (Vmax, Km e Cmin), encontrar respostas entre cultivares de cana-de-açúcar e de arroz quanto à capacidade de absorção e utilização do silício, quando submetidas a condições distintas de disponibilidade e carência do elemento, procurando relacioná-las a parâmetros fisiológicos de absorção, parâmetros morfológicos de raízes e eficiência de utilização deste mineral. Foram realizados dois experimentos independentes, um para a cana-de-açúcar e outro para o arroz, em casa de vegetação, na Faculdade de Ciências Agronômicas/UNESP, em Botucatu-SP. O delineamento experimental de cada experimento foi inteiramente casualizado, em esquema fatorial composto por dois cultivares distintos quanto ao acúmulo de silício para o arroz (1- alto acúmulo: Caiapó e 2- baixo acúmulo: Maravilha) e para cana-de-açúcar (1- alto acúmulo: RB85-5035 e 2- baixo acúmulo: SP81-3250) e dois níveis de silício (alto: 1,7mmol L-1 e baixo: 0,1mmol L-1), com seis repetições. Foram avaliados os parâmetros cinéticos (Vmax, Km e Cmin), parâmetros morfológicos da raiz (comprimento, diâmetro e superfície), massa... (Resumo completo, clicar acesso eletrônico abaixo)<br>Abstract: Silicon is considered of great importance for sugar cane and rice because it can improve tolerance to biotic and abiotic stress. However, silicon has not shown positive effects in many situations probably due to genetic factors related to capacity of plants to absorb this element in lower availability or/and efficiently use it. Uptake mechanisms found in root-soil interface are influenced by physiological efficiency and aspects of root morphology such as length, surface and diameter. Therefore, this research had the objective of monitoring Si uptake kinetics (Vmax, Km and Cmin) and identifying responses among sugar cane varieties and rice cultivars related to plant capacity of Si uptake and use under distinct conditions of availability and deficiency, associating them to physiological aspects of absorption, root morphology parameters and use efficiency. Two greenhouse experiments were separately carried out for sugar cane and rice in the College of Agricultural Sciences, UNESP, Botucatu-SP, Brazil. The experimental design for each crop was the completely randomized with six replications, analyzed as a factorial that consisted of two rice cultivars (1- high accumulation: 'Caiapó' and 2- low accumulation: 'Maravilha') and sugar cane varieties (1- high accumulation: RB85-5035 and 2- low accumulation: SP81-3250) with distinct silicon accumulation capacity and two silicon levels (sufficient: 1.7 mmol L-1 and insufficient: 0.1 mmol L-1). Kinetic parameters (Vmax, Km and Cmin), root morphology aspects (length, diameter and surface), dry matter, silicon accumulation and level in shoot and root, uptake efficiency, use efficiency and root/shoot ratio were evaluated for sugar cane and rice. Data was submitted to variance analysis and means were compared by the LSD test at a probability level of 5%. The higher silicon concentration in the nutrient solution did not increase neither sugar... (Complete abstract click electronic access below)<br>Mestre
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Шепєлєв, Анатолій Єгорович, Анатолий Егорович Шепелев та Anatolii Yehorovych Shepieliev. "Морфологічні показники студенток в умовах учбового процесу". Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/41753.
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Морфологічний розвиток і фізична працездатність спортсменів є визначальними факторами їх підготовленості, оскільки, вони безпосередньо впливають на змагальну ефективність окремих спортсменів і команди в цілому. Підвищення ефективності тренувального процесу асоціюється з індивідуалізацією тренувального завантаження за величиною і інтенсивністю. В основі індивідуалізації повинно бути знання основних морфологічних і функціональних параметрів спортсменів по їх ігровим амплуа.
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Talbott, Mariah Jane. "Determining morphological and biochemical parameters associated with ovarian follicular atresia and caviar quality and yield in cultured white sturgeon (Acipenser transmontanus)." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/talbott/TalbottM0510.pdf.
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Harvesting sturgeon Acipenseridae when the ovarian follicles have the appropriate firmness and size is important for the caviar industry in order to produce a consistently uniform product and maximize caviar yield. Therefore, it is beneficial for the caviar industry to detect fish with atretic ovarian follicles prior to harvest, which can cause a decrease in caviar grade or complete loss of the product and to harvest fish at the correct stage of ovarian maturity to produce the highest quality and yield of caviar possible. The objectives of this study were to find a parameter that can detect early signs of ovarian follicular atresia by measuring blood plasma concentrations of sex steroids and determine if correlations exist among plasma sex steroid concentrations, morphological characteristics, and caviar yield and quality. To achieve the first objective, blood and ovarian follicles were collected repeatedly from 15 fish prior to and after inducing follicular atresia. Plasma testosterone (T) was the best indicator of the onset of atresia. Logistic regression models were used to illustrate how a threshold value of T can be determined to decrease the probability of harvesting white sturgeon with atretic ovaries. To achieve the second objective, biological samples (blood, ovarian follicles) and morphological measurements were collected from white sturgeon at caviar harvest (n = 20 per month) for five months. Analyses of parameters associated with caviar quality were limited because 92% of fish produced the same quality of caviar. Plasma E2 was correlated with caviar yield, caviar yield as a percent of body weight, and gonadosomatic index (GSI), whereas T was not correlated with either caviar yield or caviar yield as a percent of body weight. Ovarian fat varied greatly among individuals. Consequently, the ovarian stage associated with caviar yield could not be determined by measuring morphological parameters indicative of ovarian maturity. Post-hoc analyses were conducted to determine if parameters differed among ovarian fat categories. In the future, this study may benefit sturgeon conservation propagation programs by improving techniques for detection of ovarian atresia and offering a less-invasive method for estimating fecundity by utilizing the correlation between plasma E2 and GSI.
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Razzaq, Wasif. "Microfluidic spinning of polymer microfibers : effect of operating parameters on morphology and properties towards the development of novel and smart materials." Thesis, Strasbourg, 2022. http://www.theses.fr/2022STRAE004.
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Le filage microfluidique est une technologie émergente pour la production de micro/nanofibres qui ont un fort potentiel pour des applications telles que l’ingénierie tissulaire, l’électronique portable, les systèmes de délivrance de principes actifs et la collecte des eaux. En filage microfluidique, des fibres de diamètres et morphologies contrôlée peuvent être obtenues en manipulant précisément le débit des fluides et la géométrie du dispositif microfluidique. Le but de ce projet doctoral est de développer une expertise et des compétences dans le domaine du filage microfluidique pour produire des fibres polymères par photopolymérisation sous irradiations UV à partir de monomères en utilisant un dispositif microfluidique à base de capillaires avec les objectifs suivants : (1) la mise en place d’une relation empirique pour prédire le diamètre des fibres en prenant en compte les différents paramètres opératoires et de matériaux, (2) la production de fibres Janus/Hecate à partir de monomères ayant différentes propriétés chimiques et physiques avec un contrôle des propriétés morphologiques et mécaniques qui ont été exploitées pour adsorber simultanément des colorants chargés positivement ou négativement, mais aussi pour préparer des actuateurs à partir de fibres Janus thermorépondantes, et (3) le développement d’une approche de modification de surface des fibres pendant leur production<br>Microfluidic spinning is an emerging technology to produce micro/nanofibers which have a significant potential in advanced applications such as tissue engineering, wearable electronics, drug delivery, and water harvesting. In microfluidic spinning, fibers with controlled diameters and morphologies could be easily produced by precisely manipulating the fluids flow and the geometry of the microfluidic device. The purpose of this doctoral project was to develop expertise and skills in the field of microfluidic spinning to produce polymer fibers using UV photopolymerization of the monomers using a capillary-based microfluidic device with the following objectives : (1) the development of an empirical relationship to predict the fiber diameter considering the different operating and materials parameters, (2) the production of Janus/Hecate fibers from monomers with different chemical and physical properties with controllability of morphological and mechanical properties that were explored to remove simultaneously cationic and anionic dyes and to prepare thermoresponsive Janus fiber actuators, and (3) the development of an in-process rapid surface modification approach to modify the surface of fibers
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Ajala, Michelle Cristina. "Alterações morfofisiológicas por estímulo mecânico e químico em mudas de Cordia trichotoma Vell. Arrad. ex. Steuds e Guazuma ulmifolia Lamarck." Universidade Estadual do Oeste do Paraná, 2015. http://tede.unioeste.br:8080/tede/handle/tede/1474.
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Previous issue date: 2015-06-10<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The last phase of seedling production, the hardening is a technique used in nurseries which aims to expose the seedlings to more severe conditions than those submitted in the growth phase, in order to prepare them for the field. Based on the above, the aim of the present study was to evaluate the effect of the application of ethylene and bending stem in two native forest species (at different times) Cordia trichotoma and Guazuma ulmifolia. The treatments consisted in the application of stem pushups 0, 10, 20 and 40 daily crunches and sprays (0 to 4) with ethylene in a factorial design in two native species. Thus, this study was subdivided into three parts. In the first part were evaluated morphological parameters of the seedlings and their survival. The variables were height of the aerial part of the plant, stem diameter, number of leaves, SPAD index and dry mass of seedlings. In the second part, we evaluated the concentration of soluble carbohydrates in leaves, cell damage through the loss of root electrolytes and the lignin content in stems of both species. In the third part evaluated the concentration of macronutrients N, P, K, Ca and Mg. The evaluated morphological parameters was found that the G.ulmifolia species decreased in the increase in height of more than 60% and 35% in diameter collect when subjected to bending stem compared to control seedlings. The most significant results occurred with 20 pushups shoot. C. trichotoma a significant decrease in the increase in height, and the application of these factors together decreased the survival of the species. In physiological parameters G. ulmifolia species showed a linear reduction in the lignin content and increased loss of electrolytes root (REL) when subjected to bending. The concentration of carbohydrates increased by 55% when combined with stem bending factors and spraying with ethylene. The species C. trichotoma there was a reduction in the concentration of lignin, REL and carbohydrates (with the application of stem crunches and spraying with ethylene). Concerning macronutrients, it was found to be reduced to N concentration (13.2%) and P (20%) in G. ulmifolia stems, while K increased with up to 23 ethylene flexing when applied. The concentration of Ca and Mg showed an increase with 26 pushups shoot. Since the application ethylene concentration decreased by 21.6% and 14% for calcium and magnesium G. ulmifolia respectively. The species C. trichotoma revealed a linear increase in the concentration of N in stems of seedlings mechanically stimulated and sprayed with ethylene. In roots, the increase was 45% flexed 10 times a day with ethylene seedlings application. The calcium content was reduced in the stems and roots when compared to control seedlings in both treatments stem and ethylene flexing C. trichotoma. The magnesium concentration was high in no spray seedlings with ethylene until stem 25 flexing while plants sprayed linearly reduced Mg concentration is increased as the stem flexing in said species<br>A última fase da produção de mudas, a rustificação, é uma técnica adotada em viveiros que visa expor as mudas a condições mais severas que aquelas submetidas na fase de crescimento, com o objetivo de prepará-las para o campo. Com base no exposto, objetivou-se no presente trabalho avaliar, o efeito da aplicação de etileno e flexão caulinar em duas espécies florestais nativas (em épocas distintas) Cordia trichotoma e Guazuma ulmifolia. Os tratamentos consistiram na aplicação de flexões caulinares de 0, 10, 20 e 40 flexões diárias e pulverizações (0 e 4) com etileno em esquema fatorial em duas espécies florestais nativas. Assim, subdividiu-se este trabalho em três partes. Na primeira parte, avaliaram-se parâmetros morfológicos das mudas e sua sobrevivência. As variáveis analisadas foram: altura da parte aérea do vegetal, diâmetro de colo, número de folhas, índice SPAD e massa seca das mudas. Na segunda parte, avaliou-se a concentração de carboidratos solúveis totais em folhas, o dano celular através da perda de eletrólitos radiculares e a concentração de lignina em caules de ambas as espécies. Na terceira parte, avaliou-se a concentração dos macronutrientes N, P, K, Ca e Mg. Nos parâmetros morfológicos avaliados constatou-se que a espécie G.ulmifolia apresentou redução no incremento em altura superior a 60 % e 35 % no diâmetro de coleto quando submetida à flexão caulinar comparado a mudas controle. Os resultados mais expressivos ocorreram com 20 flexões caulinares. Em C. trichotoma ocorreu uma diminuição significativa no incremento em altura, e a aplicação destes fatores em conjunto diminuiu a sobrevivência da espécie. Nos parâmetros fisiológicos a espécie G. ulmifolia apresentou uma redução linear na concentração de lignina e aumento na perda de eletrólitos radiculares (PER) quando submetida a flexões. A concentração de carboidratos aumentou em 55% quando associado a fatores flexão caulinar e pulverização com etileno. Na espécie C. trichotoma houve redução na concentração de lignina, PER e carboidratos (com a aplicação de flexões caulinares e pulverizações com etileno). Quanto aos macronutrientes, verificou-se que foi reduzida a concentração de N (13,2 %) e P (20 %) em caules de G. ulmifolia, enquanto o K aumentou com até 23 flexões quando aplicado o etileno. A concentração de Ca e Mg mostrou um acréscimo com 26 flexões caulinares. Já a aplicação de etileno diminuiu a concentração em 21,6 % e 14 % para cálcio e magnésio G. ulmifolia respectivamente. A espécie C. trichotoma revelou um aumento linear na concentração de N em caules em mudas estimuladas mecanicamente e pulverizadas com etileno. Em raízes, esse aumento foi de 45 % em mudas flexionadas 10 vezes ao dia com aplicação de etileno. O teor de cálcio foi reduzido em caules e raízes quando comparadas à mudas controle em ambos os tratamentos com flexões caulinares e etileno em C. trichotoma. A concentração de magnésio foi elevada em mudas sem pulverização com etileno em até 25 flexões caulinares, enquanto, mudas pulverizadas reduziram linearmente a concentração de Mg a medida que se elevaram as flexões caulinares na referida espécie
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Vieira, Jorge Luiz. "Habitação coletiva econômica, urbanidade e habitabilidade : estudo tipológico em Porto Alegre/RS e Montevidéu (Uruguai)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/171708.
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O trabalho aborda a trajetória da produção de habitação coletiva econômica em altura, nas cidades de Porto Alegre, no Rio Grande do Sul, e Montevidéu, no Uruguai, no período de 1985 a 2010. Procura identificar os principais eventos que reverberavam em um movimento de intenso debate sobre o papel da arquitetura para o cenário de abertura política para muitos países latino-americanos. Demonstra a importância desse período, ao mesmo tempo rico de possibilidades, mas também repleto de fortes impactos econômicos, políticos e sociais, que resultaram do enfraquecimento do Estado Providência, do desmantelamento da União Soviética e da hegemonia do neoliberalismo. Aponta as experiências para a recomposição da arquitetura como disciplina que constrói a cidade, especialmente pelas propostas que, emanadas dos principais polos de difusão da arquitetura no Brasil e no Uruguai, expuseram em projetos e obras inspiradas nos aportes teóricos e nas experimentações críticas ao Movimento Moderno advindas da Europa, como aquelas realizadas pela IBA-87, em Berlim. Busca, nas raízes das transformações morfológicas por que passaram essas cidades, entender como cada uma assimilou os pressupostos da modernidade, de forma breve em relação aos aspectos econômicos, sociais e políticos e, de forma mais detida, com relação às influências do Movimento Moderno sobre a arquitetura e a cidade, especialmente sobre suas normativas institucionais e a produção de habitação. A partir dos resultados obtidos da análise dos parâmetros de urbanidade e de habitabilidade, aplicados sobre os quatro exemplares dos conjuntos de habitação coletiva econômica em altura, selecionados em cada cidade, procura- se avaliar as contribuições das políticas públicas e dos agentes envolvidos, incluindo-se o protagonismo dos arquitetos, especialmente no momento em que as cooperativas habitacionais passam a ser reintegradas nas políticas de financiamento e de ordenamento territorial, no caso de Montevidéu, e da implantação do programa Minha Casa Minha Vida, no caso do Brasil, rebatido à especificidade da cidade de Porto Alegre. Por último, procura-se ressaltar a importância dos parâmetros de urbanidade e de habitabilidade como indicativos de qualidade projetual, especialmente para o ensino de projeto de habitação de interesse social.<br>This work approaches the trajectory of the production of collective economic housing in height, in the cities of Porto Alegre, Rio Grande do Sul, and Montevideo, Uruguay, between 1985 and 2010. It looks forward to identify the major events which reverberated in a intense movement of discussion about the role of architecture for the political opening for many latin- american countries. It proves us the importance of this period of time, at the same time full of possibilities, but also with lots of rough economic, political and social impacts, which resulted from the weakening of Providence State, the Soviet Union dismantling and the neoliberalism hegemony. It points out the experiences for the recomposition of architecture as a city builder discipline, notably by the purposes which poured from the main poles of architecture diffusion on Brazil and Uruguay, exposed in projects and jobs inspired by the theoretical contribution and critical experiments to the Modern Movement coming from Europe, such as the ones realized by the IBA-87, in Berlin. It searches, in the roots of morphological transformations which happened in those cities, to understand how each one of these assimilated the assumptions of modern times, in a detained way, in a relation with the Modern Movement influences about architecture and the city, specially about its institutional regulations and the housing production. By the results obtained from the housing and urbanity parameter analysis, applied upon those four examples of housing aggregation buildings, pointed on each belonging city, it tries to evaluate the public policy and involved agents contribution, including the architects protagonism, specially in the moment when habitational cooperatives turn to be reintegrated into the financial and territorial order policies, on Montevideo's case, and the program "Minha Casa Minha Vida" , on Brazil's case, specifically in the city of Porto Alegre. At last, it looks forward to emphasize the urbanity and habitability parameters' importance as project quality indicatives, especially for the project of social interest habitation teaching.
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Zhang, Xiaotian. "Accurate wideband measurement of human body absorption cross section in reverberation chamber : a morphological parameters study from 1 GHz to 18 GHz." Thesis, University of York, 2017. http://etheses.whiterose.ac.uk/19455/.
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The human body absorption cross section (ACS) is important in the non-ionized dosimetry, indoor channel modelling, design of electrical biomedical devices, etc. In order to find the relations between morphological parameters and the human body ACS, we developed new measurement techniques which can obtain human body ACS quickly and accurately. Empirical models were inducted from the accurate measurement results, which enables the human body ACS to be quickly evaluated from the morphological parameters. Our researches include the following parts. First, the new measurement techniques which can give ACS result accurately had been validated by measuring the ACS of a sphere model with known structure and material in the reverberation chamber (RC). The measurement result matches very well with the analytical solution of the sphere ACS. After the new measurement techniques had been validated, measurements on the human body ACS of 48 subjects were performed to find its relation to morphological parameters. A strong linear correlation between the ACS and the body surface area (BSA) was found above 6 GHz and a linear equation was inducted. No strong linear correlations between the ACS and all morphological parameters were found below 6 GHz, therefore, the coordinate of several markers on the ACS curve were correlated to the morphological parameters to evaluate the ACS below 6 GHz. At last, due to the similarities between the measured ACS and the ACS given by multilayer analytical model, a numerical method that can calculate the ACS of object with arbitrary shape was given. The numerical method was specially optimized for calculating the object with multiple thin surface layers, and its accuracy was demonstrated by solving the ACS of a 2D multilayer cylinder, of which the ACS can be solved analytically. The numerical result matches well with the analytical solution.
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Toquet, Fabien. "Study of the combined roles of the Silica/Oil/UHMWPE formulation and process parameters on morphological and electrical properties of battery Separators." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1014/document.
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Ce travail s'est concentré sur la compréhension de l'influence de la formulation et plus spécifiquement de la silice précipitée sur la résistivité électrique de séparateurs en polyéthylène destinés à des batteries au plomb. Les séparateurs de batteries en polyéthylène sont composés de silice précipitée, de polyéthylène ultra haute masse molaire (UHMWPE) et d'huile organique. La première partie de ce travail a été d'élaborer à l'échelle du laboratoire, des membranes modèles en polyéthylène. La seconde a été de comprendre l'influence de certains facteurs sur les propriétés structurales et physicochimiques des membranes. Ces facteurs sont principalement la quantité d'huile, la quantité et le grade de silice précipitée, les conditions de température lors de la cristallisation de la membrane et le mode de mise en œuvre utilisé. Les influences des quantités d'huile et de silice sur la cristallisation du polyéthylène sont méticuleusement étudiées, montrant que l'huile aide à augmenter la cristallinité finale de l'UHMWPE et que la silice joue un rôle de réservoir d'huile. Il a également été mis en évidence que la quantité ainsi que le grade de silice influencent la quantité de porosité de la membrane mouillable par l'électrolyte. La présence de silice en surface des pores est responsable de la mouillabilité de la membrane. Un paramètre empirique a donc été proposé dans le but de pouvoir quantifier l'efficacité de l'état de dispersion/distribution de la silice précipitée dans la membrane. Pour terminer, pour une formulation et un même mode de mise en œuvre, il est possible de discriminer l'efficacité des grades de silice précipitée pour l'application séparateur de batterie<br>This work is devoted to understand the effect of the formulation and more specifically of the precipitated silica on the resistivity of the PE-separators. The PE-separators are designed for the lead-acid batteries. PE-separators are composed of precipitated silica, ultrahigh molecular weight polyethylene (UHMW-PE) and organic oil. The first part of this work was to elaborate PE-separator models at a laboratory scale. Then, the factors impacting the structural and physico-chemicals properties of PE-separators were investigated. These factors are mainly the amounts of oil, precipitated silica, the grade of the precipitated silica, the temperature conditions of crystallization and the device used to elaborate the membrane. The influence of the amounts of oil and precipitated silica on the crystallization of the polyethylene wasthoroughly described showing that the oil helps to increase the final crystallinity of UHMWPE and that the silica plays a role of oil reservoir. Moreover, it was shown that the amount and the grade of precipitated silica have an influence on the wettable part of the porosity of the PE-separators. The coating of the pores by the precipitated silica is responsible of the wettability of the membranes by the electrolyte. Thus, an empirical parameter has been proposed in order to quantify the efficiency of the dispersion and distribution of the precipitated silica in the membrane. The more the membranes are wettable by the electrolyte the more the resistivity of the membranes is decreased. To finish, for a same amount of components and a same method of processing, it is possible to discriminate the efficiency of each grade of precipitated silica for the battery separator application
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Smejkal, Jan. "Vliv organických aditiv na elektrochemické procesy ovlivňující parametry akumulátorů Zinek-vzduch." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399516.
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The diploma thesis is focused on the study of the influence of selected organic additives on the properties and morphology of zinc deposit on the negative electrode when used in zinc-air accumulators. Organic additives have been selected based on the study of literature and previously done experiments. The deposition was made on the tin plate electrodes in a solution of 6 mol/l KOH saturated with ZnO with added additives. All chosen additives were studied with a focus on the morphology of zinc deposit and with regard to their ability to suppress dendritic growth. Zinc morphology was studied by using a Tescan Vega 3 electron microscope and a Rigaku MiniFlex HR 600 X-ray diffractometer.
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Gudmonas, Nerijus. "Uosialapio klevo (Acer negundo L.)derėjimas ir vaisių morfologinių požymių variacija gamtinėse ir urbanizuotose buveinėse." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120831_091707-06607.
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Uosialapis klevas (Acer negundo) vienas iš 5 invazinių naikintinų augalų Lietuvoje. Dėl jo agresyvaus skverbimosi į vandens pakrančių bendrijas ir daromos žalos bioįvairovei pradėti tyrimai kuriais siekiama išsiaiškinti uosialapio klevo ekologines ir biologines savybes, populiacijų sudėtį ir daromą poveikį aplinkai. Darbo tikslas – nustatyti uosialapio klevo derėjimo ir vaisių morfologinių požymių priklausomybę nuo medžių amžiaus ir buveinės sąlygų. Darbo uždaviniai: 1. Nustatyti tirtų uosialapio klevo populiacijų moteriškųjų individų brandos amžių; 2. Įvertinti uosialapio klevo kekių dydžio priklausomybę nuo medžio amžiaus ir buveinės sąlygų; 3. Nustatyti vaisių morfologinių požymių priklausomybę nuo medžio amžiaus ir buveinės sąlygų; 4. Ištirti uosialapio klevo vaisių morfologinių požymių įvairovę.<br>Ash-leaf maple (Acer negundo) is listed among 5 alien invasive plant species in Lithuania. Because of intense invasion to the habitats of river banks and negative influence on biodiversity, investigations on this species biological and ecological caracteristics were started in order to reveal its impact on natural environment. The aim of the work was to reveal fecundity and variation of fruit parameters in relationship with tree age and habitat characteristics. Following tasks were formulated: (1) to reveal age of fecundity of female individuals of ash-leaf maple; (2) to estimate dependence of raceme parameters upon tree age and habitat characteristics; (3) to reveal relationships of fruit morphological parameters with tree age and habitat characteristics; (4) to investigate variation of fruit parameters in and among populations.
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Martins, Priscila Oliveira [UNESP]. "Cinética de absorção de silício por cultivares de cana-de-açúcar e de arroz." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/86436.
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martins_po_me_botfca.pdf: 595131 bytes, checksum: 36c47785fb004c4dc8719a57463dcab7 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O silício é considerado, para o arroz e a cana-de-açúcar, um elemento de relevada importância, pois, em muitas situações, tem proporcionado maiores tolerâncias a estresses bióticos e abióticos. No entanto, em muitas situações não tem sido constatado efeito positivo do silício, o que pode estar relacionado a fatores genéticos quanto à capacidade em adquirir silício em baixa disponibilidade e/ou utilizar o elemento absorvido com maior eficiência. Os mecanismos de absorção presentes na interface solo-raiz são influenciados por eficiência fisiológica e pela morfologia radicular das plantas, representada pelo comprimento, superfície e diâmetro das raízes. Assim, o presente trabalho teve por objetivo, mediante o acompanhamento da cinética de absorção de Si (Vmax, Km e Cmin), encontrar respostas entre cultivares de cana-de-açúcar e de arroz quanto à capacidade de absorção e utilização do silício, quando submetidas a condições distintas de disponibilidade e carência do elemento, procurando relacioná-las a parâmetros fisiológicos de absorção, parâmetros morfológicos de raízes e eficiência de utilização deste mineral. Foram realizados dois experimentos independentes, um para a cana-de-açúcar e outro para o arroz, em casa de vegetação, na Faculdade de Ciências Agronômicas/UNESP, em Botucatu-SP. O delineamento experimental de cada experimento foi inteiramente casualizado, em esquema fatorial composto por dois cultivares distintos quanto ao acúmulo de silício para o arroz (1- alto acúmulo: Caiapó e 2- baixo acúmulo: Maravilha) e para cana-de-açúcar (1- alto acúmulo: RB85-5035 e 2- baixo acúmulo: SP81-3250) e dois níveis de silício (alto: 1,7mmol L-1 e baixo: 0,1mmol L-1), com seis repetições. Foram avaliados os parâmetros cinéticos (Vmax, Km e Cmin), parâmetros morfológicos da raiz (comprimento, diâmetro e superfície), massa...<br>Silicon is considered of great importance for sugar cane and rice because it can improve tolerance to biotic and abiotic stress. However, silicon has not shown positive effects in many situations probably due to genetic factors related to capacity of plants to absorb this element in lower availability or/and efficiently use it. Uptake mechanisms found in root-soil interface are influenced by physiological efficiency and aspects of root morphology such as length, surface and diameter. Therefore, this research had the objective of monitoring Si uptake kinetics (Vmax, Km and Cmin) and identifying responses among sugar cane varieties and rice cultivars related to plant capacity of Si uptake and use under distinct conditions of availability and deficiency, associating them to physiological aspects of absorption, root morphology parameters and use efficiency. Two greenhouse experiments were separately carried out for sugar cane and rice in the College of Agricultural Sciences, UNESP, Botucatu-SP, Brazil. The experimental design for each crop was the completely randomized with six replications, analyzed as a factorial that consisted of two rice cultivars (1- high accumulation: ‘Caiapó’ and 2- low accumulation: ‘Maravilha’) and sugar cane varieties (1- high accumulation: RB85-5035 and 2- low accumulation: SP81-3250) with distinct silicon accumulation capacity and two silicon levels (sufficient: 1.7 mmol L-1 and insufficient: 0.1 mmol L-1). Kinetic parameters (Vmax, Km and Cmin), root morphology aspects (length, diameter and surface), dry matter, silicon accumulation and level in shoot and root, uptake efficiency, use efficiency and root/shoot ratio were evaluated for sugar cane and rice. Data was submitted to variance analysis and means were compared by the LSD test at a probability level of 5%. The higher silicon concentration in the nutrient solution did not increase neither sugar... (Complete abstract click electronic access below)
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Lima, Maria Angélica Suedan Souza. "Azedinha (Rumex acetosa L.) : caracterização morfológica, requerimento nutricional e qualidade sensorial." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7110.
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Previous issue date: 2015-09-18<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Azedinha (Rumex acetosa L.) has pleased the consumer for its sour taste. Considered an unconventional vegetable, their redemption becomes important to allow notable gains from the nutritional, social, cultural, economic and environmental point of view. The objective was to characterize
morphologically copies of azedinha obtained from seeds, determine their sensory characteristics and acceptance, as well as analyze some physicochemical parameters, and determine the absorptions of macro and micronutrients and biometric parameters during 60 days after transplanting (DAT). The experiment was conducted at the Centro de Ciências Agrárias, belonging to the Universidade Federal São Carlos - UFSCar in the city of Araras - SP. Biometric parameters were evaluated (length of the leaf, relative leaf area, fresh and dry weight of shoots) and the macro and micronutrients absorption march from plants collected at 15, 20, 25, 30, 35, 40, 50 and 60 DAT. They evaluated the length, width and length / width ratio of leaf blade; petiole length and width close to the blade; diameter of the stump; the shoot length; length of ochreas; shape of the leaf blade; kind of apex; base form; type of veining and type of margin of the leaf blade; type of ochreas; characterization of the stem; length and diameter (neck) of the root. It also determined the levels of ascorbic acid, phenolic compounds and chlorophyll parameter. For sensory analysis was used the Quantitative Descriptive Analysis (QDA). Sensory
analysis of acceptance was conducted with 52 judges, in relation to vii appearance, aroma, flavor, texture and overall impression, as well as purchase intent. The biometric parameters increased over time after transplantation and most markedly after the recommended times for harvest (20 and 35 DAT). The maximum levels of macro and micronutrients accumulated in the shoot, in descending order were as follows: K > N > Mg > P and Fe > Mn > Zn > Cu. The morphological descriptors with greater discriminatory power for azedinha were the types of margin and venation of the leaf blade, the characterization of the stem, the presence of ochrea and shape of the leaf blade, ranging from
sagittate the hastate. It also infers that the best harvest time is between 20 and 35 DAT. The average content of ascorbic acid was 10,25 mg 100g-1 sample, total phenolic 291,46 mg of gallic acid 100 g-1 dry weight and chlorophyll parameter was 36,6 SPAD units. As for the quantitative descriptive analysis, the leaves of azedinha framed up closer to dark green; most have arrow or spear shape; smooth; with sharp aroma of grape skin; more acid flavor, such as green blackberries; there was no residual bitterness; they were folding; wrinkle free; soft to chew and thin. Regarding the acceptability test, the notes to the variable color, flavor, texture and overall acceptability were high and most judges would
buy this vegetable.<br>A azedinha (Rumex acetosa L.) tem agradado o consumidor por seu sabor ácido. Considerada hortaliça não convencional, seu resgate se torna importante ao possibilitar ganhos notáveis do ponto de vista nutricional, social, cultural, econômico e ambiental. Objetivou-se caracterizar morfologicamente exemplares de azedinha obtidos de sementes, determinar seus atributos sensoriais e aceitação, bem como analisar alguns parâmetros físico-químicos, e determinar a marcha de absorção de macro e micronutrientes e os parâmetros biométricos durante 60 dias após transplante (DAT). O experimento
foi conduzido no Centro de Ciências Agrárias, pertencente à Universidade Federal de São Carlos - UFSCar, no município de Araras – SP. Avaliaram-se os parâmetros biométricos (comprimento da lâmina foliar, área foliar relativa, massas fresca e seca da parte aérea) e a marcha de absorção de macro e micronutrientes de plantas coletadas aos 15, 20, 25, 30, 35, 40, 50 e 60 DAT. Foram avaliados o comprimento, a largura e a relação comprimento/largura das lâminas foliares; comprimento e largura do pecíolo próximo à lâmina; diâmetro da touceira; comprimento da parte aérea; comprimento das ócreas; forma da
lâmina foliar; tipo de ápice; forma da base; tipo de nervação e tipo de margem da lâmina foliar; tipo de ócrea; caracterização do caule; comprimento e diâmetro (colo) da raiz. Foram determinados também os teores de ácido ascórbico, fenólicos totais e o parâmetro clorofila. Para a análise sensorial foi utilizada a Análise Descritiva Quantitativa (ADQ). A análise sensorial de
v aceitação foi realizada com 52 julgadores, em relação à aparência, aroma, sabor, textura e impressão global, além da intenção de compra. Os parâmetros biométricos aumentaram ao longo do tempo após o transplante e, mais acentuadamente, após o intervalo estimado, pela literatura, para a colheita (20 a 35 DAT). Os teores máximos dos macro e micronutrientes acumulados na parte aérea, em ordem decrescente foram respectivamente: K > N > Mg > P e Fe > Mn > Zn > Cu. Os descritores morfológicos com maior poder discriminatório para a azedinha foram os tipos de margem e nervação da lâmina foliar, a caracterização do caule, a presença de ócrea e a forma da lâmina foliar, que vai de sagitada a hastada. Infere-se também que, para mudas obtidas de sementes, a melhor época de colheita é entre 20 e 35 DAT. O teor médio de ácido ascórbico foi 10,25 mg 100g-1 de amostra, de fenólicos totais foi equivalente a 291,46 mg de ácido gálico 100g-1 de massa seca e o parâmetro clorofila foi de 36,6 unidades SPAD. Quanto à análise descritiva quantitativa, as folhas de azedinha enquadraram-se mais próximas à cor verde escura; a maioria possui formato de seta ou lança; lisas; com acentuado aroma
de casca de uva; sabor mais ácido, como o da amora verde; não havia amargo residual; eram dobráveis; sem rugas; macias ao mastigar e finas. Em relação ao teste de aceitabilidade, as notas para as variáveis aparência, sabor, textura e aceitação global foram altas e a maioria dos julgadores comprariam essa hortaliça.
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Klunk, Sergej. "Differenzierung der Ätiologie und Morphologie des Hepatozellulären Karzinoms und der Leberzirrhose - Basierend auf mathematisch-statistischen Analysen der mikroRNA-Profile und laborchemisch-klinischer Parameter." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-203635.
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Die Lebertransplantation bietet gegenwärtig die beste Therapiemöglichkeit des Hepatozellulären Karzinoms und der Leberzirrhose im Endstadium. Für die positiven Resultate ist die rechtzeitige Diagnose- und Indikationsstellung entscheidend. Bei einem Japanese Integrated System (JIS) Score von 0 liegt die 5-Jahres-Überlebensrate nach einer Transplantation bei 73 %, bei einem Anstieg des Scores auf den Wert 3, sinkt sie auf 13 %[74]. Die Sensitivität der gegenwärtigen Diagnostik aus bildgebenden Verfahren und der Bestimmung des AFP zur Detektion eines HCC schwankt zwischen 20 % und 94 %[47,48,69]. Der für die Listung zur Transplantation entscheidende MELD-Score vernachlässigt ebenso wie die Milan-Kriterien die genetische und ätiologische Komponente dieser Tumorerkrankung, welche aber maßgeblich das rezidivfreie Überleben bestimmen[16–18,70].
Im Rahmen dieser Dissertation wurden Gewebeproben aus explantierten Lebern auf mikroRNA-Expression untersucht. Des Weiteren wurde zum ersten Mal analysiert, ob mit Hilfe binär-logistischen Regression und der Entscheidungsbaumklassifikation Algorithmen aus mikroRNA-Profilen und laborchemisch-klinischen Parametern zur Detektion und ätiologischen Differenzierung des HCC und der Leberzirrhosen entwickelt werden können. In der vorliegenden Arbeit konnte dargestellt werden, dass zwischen dem HCC-Gewebe und dem tumorumgebenden Gewebe, zwischen tumorumgebendem Gewebe und der reinen Zirrhose sowie zwischen ethyltoxischer und viraler Genese der o.g. Krankheitsbilder die mikroRNAs unterschiedlich stark exprimiert werden. Außerdem konnten aussichtsreiche Modelle berechnet werden, die eine Differenzierung zwischen Tumor und tumorumgebendem Gewebe mit 87,5 %, eine Unterscheidung von tumorumgebender Zirrhose von einer reinen Zirrhose mit 94,3 % bzw. 96,3 % und eine Differenzierung zwischen Tumorgewebe und reiner Zirrhose mit 91,9 % bzw. 92,1% ermöglichen. Die weitere Analyse zeigte, dass die Modelle ebenfalls dazu geeignet sind, die Lebererkrankungen nach der Ätiologie zu differenzieren.
Die dargestellten Methoden sind in der Beachtung der mit großen Potenzial[24,30] versehenen mikroRNAs und der laborchemisch-klinischen Parameter neuartige Verfahren, die sowohl für die weitere Grundlagenforschung als auch für die Ergänzung der derzeit etablierten diagnostischen und allokativen Verfahren wichtige Erkenntnisse liefern.
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Bercht, Bernardo Stefano. "Avaliação do endotélio da córnea de chinchilas ( chinchilla Lanigera) em diferentes faixas etárias utilizando a microscopia especular." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/79479.
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O endotélio é uma monocamada de células achatadas, poligonais e interligadas que recobrem a superfície posterior da córnea, sendo fundamental na manutenção da transparência desta estrutura. Embora as chinchilas (Chinchilla lanigera) sejam utilizadas em pesquisas oftálmicas, não existem dados referentes ao endotélio da córnea nesta espécie. Portanto, objetivou-se avaliar a densidade celular, a paquimetria, a área celular média e a morfologia do endotélio da córnea de chinchilas em diferentes faixas etárias. Foram estudados 60 bulbos oculares de 30 chinchilas, machos ou fêmeas, de diferentes faixas etárias. As chinchilas foram subdivididas em três grupos com 10 animais cada, designados por: G I (animais com idade entre dois a quatro meses); G II (animais com 11 meses de idade) e G III (animais com quatro anos de idade). A densidade celular endotelial média nos animais dos grupos G I, G II e G III foi de respectivamente 3385,39 ± 507,53, 2565,51 ± 220,46 e 1812,82 ± 117,92 células/mm2. A área celular média foi de respectivamente 301,51 ± 43,94, 392,46 ± 33,34 e de 553,79 ± 35,70 μm2 para G I, G II e G III. Os resultados apontam decréscimo da densidade, do pleomorfismo, e aumento da área celular média com o aumento da idade. A espessura da córnea aumentou em animais mais velhos. Conclui-se que o endotélio da córnea de chinchilas sofre alterações com o avanço da idade.<br>The corneal endothelium is a monolayer of interconnected flattened polygonal cells that cover the back surface of the cornea, it is essential for the maintenance of its transparency. Due to the complete lack of data on the endothelial cells of chinchilla (Chinchilla lanigera) and its possible use as an animal model in ophthalmic research, the objective was to evaluate the cellular density, pachymetry, the average cell area and morphology of the corneal endothelium of chinchillas in different age groups. It was studied 60 eyes of 30 chinchillas, male or female, of different ages. Chinchillas were divided into three groups with 10 animals each, designated by: G I (animals aged two to four months), G II (animals with 11 months) and G III (animals with four years of age). The mean endothelial cell density in the animals of G I, G II and G III were respectively 3385,39 ± 507,53, 2565,51 ± 220,46 and 1812,82 ± 117,92 cells/mm2. The average cell area was respectively 301,51 ± 43,94, 392,46 ± 33,34 and 553,79 ± 35,70 μm2 for GI, G II and G III. The results indicate a decrease in density, pleomorphism, and increased in average cell area with increasing age. Corneal thickness increased in older animals. The corneal endothelium of chinchillas changes with advancing age.
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Fauerharmel, Mariana. "CRESCIMENTO INICIAL DE Enterolobium contortisiliquum (Vell.) Morong. EM DIFERENTES SUBSTRATOS E LÂMINAS DE IRRIGAÇÃO." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/8751.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The purpose of this work was to evaluate the development of Enterolobium contortisiliquum (Vell.) Morong seedlings produced with different substrates combined with irrigation water blade. The study was developed in the Tree Nursery of the Department of Forest Sciences at the Federal University of Santa Maria (UFSM-Universidade Federal de Santa Maria). The seeds used were collected from donor trees in the region of Santa Maria (RS). The substrates used were peat-based commercial (CS) and the mixture of the latter with carbonized rice husks (CRH), forming the following treatments: S1 (100% CS), S2 (80% CS + 20% CRH), S3 (60% CS + 40% CRH) and S4 (40% CS + 60% CRH) and the gross blades of daily irrigation water - GB-Gross Blades were 4, 8, 12, 16 and 20 mm.day-1. The design used was randomized blocks (four blocks) in a factorial scheme. The parameters height (H), stem diameter (SD) and H/SD ratio were obtained in a factorial scheme 4x5x4. For the aerial dry mass (ADM), root dry mass (RDM), total dry mass (TDM), ADM/RDM ratio and Dickson Quality Index (DQI), the factorial 4x5 was used respectively for the factors CS and irrigation blade, these parameters were obtained 150 days after sowing. One hundred and twenty days after sowing, the physiological parameters, chlorophyll a, chlorophyll b, total chlorophyll and carotenoids were evaluated and correlated with the morphological ones (H, SD and H/SD), also seen at 120 days. In this analysis we used 4x3 factorial, represented by four substrates and three blades gross daily irrigation (4, 12 and 20 mm.dia-1). The results indicated that the substrate based on peat mixed with 20% carbonized rice husk, when combined with gross irrigation blade of 8 mm.day-1 provides the appropriate seedlings Enterolobium contortisiliquum growth with greater economy of water and substrate. The correlation of morphological and physiological parameters observed in seedlings is low, so H, SD and H/SD may not be used for reference on the contents of chlorophyll. At 120 days after sowing, the height was greater in the 4 and 12 mm.day-1, possibly because 8 mm.day-1 was not used for analysis, while the diameter proved superior at S1 and S2, confirming the response at 150 days. As to the chlorophyll and carotenoid contents, they were larger when the seedlings received smaller amounts of water daily, indicating that the greater water blade compromised the seedling development and 20% of rice husk mixed with peat.<br>Este trabalho objetivou avaliar o desenvolvimento de mudas de Enterolobium contortisiliquum (Vell.) Morong produzido sob diferentes substratos combinados com lâminas de irrigação. O trabalho foi desenvolvido no Viveiro Florestal, do Departamento de Ciências Florestais, Universidade Federal de Santa Maria (UFSM). Foram utilizadas sementes coletadas de árvores matrizes na região de Santa Maria (RS). Os substratos utilizados foram comercial a base de turfa (SC) e a mistura deste à casca de arroz carbonizada (CAC), constituindo os seguintes tratamentos: S1 (100% SC), S2 (80% SC + 20% CAC), S3 (60% SC + 40% CAC) e S4 (40% SC + 60% CAC) e as lâminas brutas de irrigação diária LB foram de 4, 8, 12, 16 e 20 mm.dia-1. O delineamento utilizado foi blocos casualizados (quatro blocos) em esquema fatorial. Os parâmetros altura (H), diâmetro do coleto (DC) e relação H/DC foram obtidos em esquema fatorial 4x5x4. Para a massa seca aérea (MSA), massa seca radicular (MSR), massa seca total (MST), relação MSA/MSR e Ìndice de Qualidade de Dickson (IQD), utilizou o fatorial 4x5, respectivamente para os fatores SC e lâmina de irrigação, parâmetros que foram obtidos 150 dias após semeadura. Aos 120 dias após semeadura foram avaliados os parâmetros fisiológicos teor de clorofila a, clorofila b, clorofila total e carotenoides, os quais foram correlacionados aos morfológicos (H, DC e H/DC), também observados aos 120 dias. Nesta análise utilizou-se fatorial 4x3, representado pelos 4 substratos e 3 lâminas brutas de irrigação diária (4, 12 e 20 mm.dia-1). Os resultados indicaram que o substrato a base de turfa misturado com 20% de casca de arroz carbonizada, quando combinado com lâmina bruta de irrigação de 8 mm.dia-1 proporciona crescimento adequado às mudas de Enterolobium contortisiliquum, com maior economia de água e substrato. A correlação dos parâmetros morfológicos e fisiológicos observada nas mudas é baixa, assim H, D e H/DC não podem ser utilizados para referenciar sobre os teores de clorofila. Aos 120 dias após semeadura, a altura foi maior nas irrigações de 4 e 12 mm.dia-1, possivelmente, porque 8 mm.dia-1 não foi utilizada na análise, enquanto o diâmetro mostrou-se superior em S1 e S2, confirmando a resposta aos 150 dias. Em relação aos teores de clorofilas e carotenoides, estes foram maiores quando as mudas receberam menores quantidades de água diariamente, indicando que a maior lâmina compromete o desenvolvimento das mudas e com 20% de casca de arroz misturado à turfa.
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Vyhnalkova, Renata. "Morphologies and corona compositions in aggregates of mixtures of PS-b-PAA and PS-b-P4VP block copolymers as influenced by controllable assembly parameters." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98513.
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The present study is devoted to the morphologies and corona compositions in aggregates of mixtures of PS-b-PAA and PS-b-P4VP block copolymers as influenced by controllable assembly parameters, such as block length, pH, solvent, water content and the molar ratio of PAA/P4VP. Morphologies and surface properties of the aggregates were investigated by transmission electron microscopy and electrophoretic mobility, respectively. According to the results, the general hypothesis that the external corona is composed of long chains, while short chains form the inner corona of the vesicles, is valid only in mixtures without additives (no acid or base). In the presence of acid or base the environment during aggregate formation influences the system. Besides the numerical block length, pH and solvent composition, and therefore solubility, determines the morphology and the coil dimension; the numerically longer chains can be made to contract and to go to the inside, while the numerically shorter chains go to the outside.
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Ho, Doris Mer Lin [Verfasser], and Thomas [Akademischer Betreuer] Fanghänel. "Study on the applicability of structural and morphological parameters on selected uranium compounds for nuclear forensic purposes / Doris Mer Lin Ho ; Betreuer: Thomas Fanghänel." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180395824/34.
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Ho, Mer Lin Doris [Verfasser], and Thomas [Akademischer Betreuer] Fanghänel. "Study on the applicability of structural and morphological parameters on selected uranium compounds for nuclear forensic purposes / Doris Mer Lin Ho ; Betreuer: Thomas Fanghänel." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:16-heidok-185959.
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