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Klaszky, Robert A. "Analysis of the positional accuracy of a range difference missile position measuring system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA384866.
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Thesis (M.S. in Systems Engineering) Naval Postgraduate School, Sept. 2000."September 2000." Thesis advisor(s): Schleher, D. Curtis. Includes bibliographical references (p. 105). Also available online.
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Yang, Qingping. "A hig precision probe system for three dimensional coordinate measurement." Thesis, Brunel University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339317.
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Peng, Cheng. "Position-weighted template matching for measuring in-plane dynamics of microdevices." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55611.
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The measurement of in-plane dynamics of microdevices is crucial to analyzing their dynamic characteristics under certain excitations. It has become more and more important to enable precise measurements and visual means to characterize dynamic microstructures, as the designs of moving micro-electro-mechanical systems (MEMS) are rapidly becoming more and more complex. And the visualization and measurement of the dynamics of MEMS structures are of considerable significance to the development of more effective and advanced microdevices. This thesis investigates the problem of visualizing, measuring and analyzing the in-plane dynamics of microdevices. We propose a novel object position tracking algorithm, called position-weighted template matching, improving the traditional template matching technique. The newly proposed algorithm effectively addresses the position "jump" problem that typically happens for object tracking in planar microdevices, where similar sub-patterns may exist in a single structure. We have incorporated the parabola fitting interpolation technique into our algorithm to achieve a higher, sub-pixel resolution level. We have implemented our proposed methods into a software module, associated with a LabVIEW Graphical User Interface (GUI). Several comparative experiments were carried out to demonstrate the effectiveness of our algorithm. In addition, the procedure was also used for performing a system identification on a fabricated MEMS resonator. Our implemented LabVIEW GUI can be potentially interfaced with low-cost hardware to enable visualization and measurement of in-plane motion of microdevices.Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Rondeau, M. Will Prentice William E. "The accuracy of the palpation meter (PALM) for measuring scapular position in overhead athletes." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1071.
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Thesis (M.A.)--University of North Carolina at Chapel Hill, 2007.Title from electronic title page (viewed Mar. 27, 2008). "... in partial fulfillment of the requirement of the degree of Master of Arts in the in Department of Exercise and Sport Sciences Athletic Training." Discipline: Exercise and Sports Science; Department/School: Exercise and Sport Science.
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Lloyd, Peter D. "The design and implementation of a position measuring system for a remotely controlled video camera." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25823.
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A position measuring system for a remotely controlled video camera was designed and built. The camera is intended to be used with the modified Advance Development Model of the AN/SAR-8 Infrared Search and Target Designation System (IRSTD) in use at the Naval Postgraduate School. The video data collected by the camera will be correlated with the infrared data from the IRSTD to develop a background data base that will be used in the development of signal processing algorithms. The measurement system uses two Hewlett Packard HEDS-6000 incremental optical encoders, two Motorola MC68705U3 microprocessors and two digital display devices to measure and present the camera's azimuth and elevation angles to an operator at a remote location. The azimuth can be measured over a range of 360 deg with a resolution of + or - 0.0213 deg and the elevation can be measured over 24 deg with a resolution of + or - 0.138 deg. The resolution is limited primarily by hysteresis, which is due to the backlash in the gears between the transducers and the axes of interest
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Whiting, James Gerald Holland. "Development and validation of a gastroenterology probe capable of measuring the position of the squamo-columnar junction." Thesis, University of Strathclyde, 2014. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=23200.
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The squamo-columnar junction is an important landmark in the upper gastro-oesophageal anatomy, acid reflux occurring above this causes heartburn and may lead to oesophageal cancer if prolonged. Currently no medical device takes into account the position of the squamo-columnar junction despite its importance. The aim of this doctoral work is to develop and validate a device which is capable of monitoring the position of the squamocolumnar junction with respect to simultaneous acid reflux and pressure measurements. Using Hall effect sensors on a custom flexible circuit board, and a magnet attached to the squamo-columnar junction, a device was produced which when inserted into the oesophagus, measured the relative position of the squamocolumnar junction to manometry and pH-metry catheters. The accuracy of the measurement was at most 5 millimetres, often better; a better resolution than either the high resolution manometer or custom pH device. The device was validated in-vivo, demonstra ting a capability of measuring significant movement of the squamo-columnar junction during transient lower oesophageal sphincter relaxations. The accuracy of the high resolution manometer was tested, which showed significant drift, capable of causing misdiagnosis. A correction algorithm was produced which corrected linear drift, removing time dependant drift leading to significantly more accurate pressure readings. Catheter based upper gastro-oesophageal measurements have the potential to cause transient lower oesophageal sphincter relaxations by triggering mechanoreceptors in the pharynx; therefore a non-catheter based squamo-columnar junction locator was designed and tested. Using a larger magnet and significantly more sensitive Hall effect sensors and custom analogue circuitry, the squamo-columnar junction could be detected. The distance between the oesophagus and the skin is estimated to be between 8 and 9 centimetres for a healthy, non-obese male adult, the detection range for the non-catheter based squamo-columnar junction locator was 10.4 centimetres. The devices developed for this doctoral work has improved the field of gastroenterology research.
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Naab-Levy, Adam O. "Enhanced Distance Measuring Equipment Data Broadcast Design, Analysis, Implementation, and Flight-Test Validation." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1449158180.
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Adenot, Sébastien. "Etude de capteurs magnétiques de position angulaire." Phd thesis, Grenoble INPG, 1996. http://tel.archives-ouvertes.fr/tel-00531702.
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Dans une grande variété d'applications, les capteurs de position sont requéris pour contrôler un processus. Pour ce type de capteurs, il existe plusieurs, technologies: codeurs optiques, -potentiomètres électriques et capteurs magnétiques. Toutes ces technologies ont leur champs d'applications et aussi leur prix. Quand un faible prix et une production en très grande série sont requéris beaucoup de ces technologies de capteurs ne respectent ces conditions. Par exemple, le potentiomètre donne un signal bruité par le contact électrique glissant et a une faible durée de vie. Par contre, les capteurs magnétiques sont intéressants par leur fonctionnement sans contact. On commence par exposer les principes des capteurs magnétiques. Les principales structures de capteurs magnétiques sont présentées. Une nouvelle structure de capteur à aimants permanents et à sondé de Hall est proposée. Ces nouveaux capteurs ont une faible sensiblité aux défauts de réalisation des pièces du circuit magnétique (aimant, pièces ferromagnétiques) et une faible sensibilité à la température. Dans la dernière partie de la thèse, nous comparons les résultats d'une modélisation numérique (éléments finis) et analytique avec ceux mesurés sur un prototype.
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Eriksson, Hanna. "On-Board Data Aquisition System : Conceptual Design of an Airdrop Tracking System." Thesis, Linköpings universitet, Maskinkonstruktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159201.
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This thesis is, on behalf of Saab AB, a pre-study of possible on-board solutions for position measuring during store separation tests aimed for the test and evaluation of JAS 39 Gripen. The purpose is to replace the present ground-based system in order to achieve more effective trials regarding time and economy. Three different concept development methodologies were investigated in order to find the most suitable one for this thesis. Those were merged into one adapted methodology containing the following phases; \textit{Planning}, \textit{Function Analysis}, \textit{Concept Generation} and \textit{Concept Evaluation}. The work progressed as the methodology states, and the highest amount of work was dedicated to the Planning phase. The requirements and desiderata for the system were produced with an agile process, resulting in the Construction Specification List that eventually became the basis for the Concept Generation phase. Knowledge about the technical theory needed to solve the problem was obtained in parallel with the Function Analysis and Concept Generation. The most adaptable techniques to measure position were found out to be with the use of the Global Positioning System (GPS) or Inertial Navigation System (INS). After an extensive work with the Concept Generation in parallel with a continuously updated Construction Specification List, three concepts were developed. One concept is based on GPS, the second one on INS and the third one is a combination of GPS and INS. All three concepts shares the same telemetry system and casing, which fulfills the requirement of simple installation and possibility to install in different stores. In the final phase, Concept Evaluation, a comparison between the concepts was performed. Advantages and disadvantages was listed and the fulfillment of requirements was investigated. All three concepts were handed over to Saab in order to let them decide which concept(s) to further develop.
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Leutenegger, Paolo, Sebastian Braun, Markus Dropmann, Michael Kipp, Michael Scheidt, Tobias Zinner, Hans-Peter Lavergne, and Michael Stucke. "The Liebherr Intelligent Hydraulic Cylinder as building block for innovative hydraulic concepts." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200639.
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We present hereafter the development of the Liebherr Intelligent Hydraulic Cylinder, in which the hydraulic component is used as smart sensing element providing useful information for the system in which the cylinder is operated. The piston position and velocity are the most important signals derived from this new measuring approach. The performance under various load and temperature conditions (measured both on dedicated test facilities and in field in a real machine) will be presented. An integrated control electronics, which is performing the cylinder state processing, additionally allows the synchronized acquisition of external sensors. Providing comprehensive state information, such as temperature and system pressure, advanced control techniques or monitoring functions can be realized with a monolithic device. Further developments, trends and benefits for the system architecture will be briefly analyzed and discussed.
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Miethling, Klaus-Dietmar. "Beiträge zur Richtighaltung von Kreisformmessgeräten." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-201554.
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In der Arbeit werden normativ-technische und verfahrenstechnische Voraussetzungen zur Richtighaltung von Kreisformmessgeräten dargelegt. Dazu wird ein umfassendes Begriffssystem für die allgemeine Beschreibung von Bewegungsabweichungen von bewegten Bauteilen an Werkzeugmaschinen oder Formmessgeräten, z.B. Kreisformmessgeräten, als Grundlage für ihre Tolerierung und Messung vorgeschlagen. Bekannte Messverfahren zur Bestimmung von Rotationsabweichungen der Spindel von Kreisformmessgeräten werden theoretisch und praktisch untersucht. Es wird ein neues Messverfahren, das kontinuierliche Relativlagenmessverfahren, entwickelt und ebenfalls untersucht. Die untersuchten Messverfahren zur Bestimmung von Rotationsabweichungen ermöglichen verschiedene Messunsicherheiten bis zu weniger als 0,02 µm. Vorschläge für die Gestaltung des Prüfschemas zur Richtighaltung von Kreisformmessgeräten werden unterbreitet.
auch unter: Zentralbibliothek/Magazin/MPF1443
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Štěpánek, Tomáš. "Měření polohy těžiště vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228353.
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This diploma thesis is devoted to problems of measurement centre of gravity position. At the beginning diploma thesis is created summary of methods to measuring moment of inertia and position measuring of centre of gravity of vehicle. Proposal is in-process on the basis method weighing on oblique position. And measurement is possible in Institute of automotive engineering in Brno. Is proposed measuring platform and preparative for obstruct changes of centre of gravity position at measuring. Measuring procedure is described and is derived formula toward calculation position of gravity centre of vehicle. To troubleshooting parts of platform are elaborate solidity calculations. In final parts diploma thesis are mentioned results from these measurements. Drawing documentation of platform and programme for calculation of centre of gravity of vehicle is enclosed in diploma thesis.
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Soják, Vojtěch. "Konstrukce dvouosého manipulátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231978.
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This master thesis deals with the design of a two-axis manipulator according to entered parameters. In the first chapter provides description of kinematics structures of industrial robots and manipulators and their workspaces. Next parts focus on search in the used components, producers of manipulators and of current design manipulators at JCEE s.r.o. Lanškroun. The practical part deals with the design and construction of custom manipulator and its price calculation.
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Hanák, Jiří. "Platforma pro měření atmosférických veličin." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445581.
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This work is dealing with the design and implementation of an embedded system for aerology measuring. The aim of the system is to monitor atmospheric states during an ascent in the suspension under an meteorological balloon. First of all, attention is given to the Earth's atmosphere and its quantities, then an overview of existing systems for performing aerological measurements. The core of the work is focused on the choice of measurement techniques and the selection of suitable measuring elements for a given scenario. The aerological probe is using atmospheric sensors HIH-8131-021-001, MS5611-01BA03 and PT1000-550 for temperature sensing, while GNSS data is received using the MAX-M8Q-0 module and the measured data is stored on a microSD card and transmitted in parallel using the MTX2-434.650-10 radio module. The system is controlled by STM32L1 from STMicroelectronics programmed in C using HAL abstraction layer.
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Mejzlík, Jiří. "Návrh jednoúčelového stroje pro měření průhybu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232101.
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The aim of the thesis is to design a special purpose tool for sag measurement. Three possible solutions are proposed, for each the production cycle time is calculated and its approximate costs are estimated. The best solution in terms of a trade-off between both key quantities is suggested. Next part of the work deals with the selection of suitable drives for the manipulator as well as of the other components for the whole electrical device. Finally, a possible automated control of the complete machinery, including the electrical wiring diagram, is presented.
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Kubica, Petr. "Zařízení pro měření výškové polohy těžiště vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232123.
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This diploma thesis deals the with measurment of the centre of gravity height position of a road vehicle and its issues. The introduction of this thesis focuses on the determining of the position of the center of gravity and the moment of inertia of a road vehicle. The next part is about creationing of a construction plan and its verification. The thesis contains a sensitivity analysis of this device including its results. The end of the thesis informs about the executed measurment in a laboratory and about recommendations for next measurments.
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Rektořík, Jiří. "Návrh zařízení pro měření výškové polohy těžiště automobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318821.
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The objective of this diploma thesis is the design of a device that measures the vehicle’s centre of gravity height position. The first part defines individual methods of measurement using various measuring equipment. The next part deals with the definition of requirements for the device and the definition of the design. A stress-strain analysis was executed for selected components. This diploma thesis describes the preparation process of the vehicle and the device for the measurement. The next part is dedicated to the design of the measuring chain and to the evaluation of the results. The thesis concludes with a theoretic analysis of the measurement inaccuracy.
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Faucci, Giannelli Michele. "Measuring of the Higgs self-coupling at an electron-positron linear collider." Thesis, Royal Holloway, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502603.
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Feilhauer, Diana. "Measuring Emotions in Dreams: Methodological Challenges." Thesis, Högskolan i Skövde, Institutionen för biovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-11294.
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Although emotions are a natural component of dream experiences, a lack of consensus prevails in research literature concerning the specific characteristics of emotional dream experiences. The aim of this study was to investigate if and to what extent this lack of convergence among studies stems from whether dream emotions are self- or externally rated - forty-four healthy participants (16 males and 28 females; mean age = 26.93, range = 19 - 40) kept a home dream diary for three consecutive weeks, and daily rated their emotional experiences in dreams with the Swedish modified Differential Emotions Scale (smDES; Fredrickson, 2013). Two external judges rated emotions in the same 552 home dream reports using the same scale. Results obtained with the two methods differed in that the self-ratings, compared to external ratings, revealed: (a) more emotional dreams; (b) more positive than negative emotions per dream (with the ratio being relatively balanced); (c) a relatively more balanced proportion of positive and negative emotions, while the external ratings revealed more negative than positive emotions per dream. The results suggest that this is mostly due to the underrepresentation of positive emotions with external ratings. Thus, the results continue to question the extent of convergence between self- and external ratings when investigating emotional dream contents, and bring to attention the importance of methodological aspects when investigating dream emotions.
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Niclasen, Rune. "Measuring the branching ratio of the rare decay neutral pion going to electron-positron." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3207725.
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Aubert, Bonn Noémie. "Suggesting adds an edge to automaticity: measuring, elucidating, and understanding positive hypnotic hallucinations." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117126.
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A visual variation of the abstract is available in an interactive video format at razlab.mcgill.ca/thesis_aubertbonn.html.Once automatized, cognitive processes seldom return to the purview of control; when they do, however, this reversal happens with much difficulty. Inspired by recent evidence introducing the role of suggestion in de-automatization, the present thesis elucidates how hypnotic suggestion renders a difficult task more automatic without extensive practice. Using MoTraK, a task inspired by a documented visual illusion, we investigated whether a specific hypnotic suggestion to view non-existent visual cues would increase performance. Our results show that highly suggestible individuals (i.e., participants who are likely to respond to hypnotic suggestion), but not controls, improved their accuracy after receiving the suggestion. We discuss how these findings, beyond theoretical accounts of hypnosis and visual perception, hold potential clinical implications. In this regard, MoTraK may serve as a stepping stone in investigations concerning the regulation of mind and body through placebo responses/effects and top–down modulation.Une vidéo interactive complémentaire à ce résumé est disponible sur le site Internet razlab.mcgill.ca/thesis_aubertbonn.html. Une fois automatisés, certains processus cognitifs retournent très difficilement au contrôle conscient. S'inspirant d'une branche de la recherche selon laquelle la suggestion peut faciliter la dé-automatisation de certains processus cognitifs, la présente thèse cherche à comprendre le rôle des suggestions hypnotiques dans l'automatisation des processus cognitifs difficiles. Nous avons utilisé MoTraK, une tâche basée sur une illusion visuelle documentée en recherche sur la perception, afin de déterminer si une suggestion hypnotique spécifique peut suffire à améliorer la performance sur cette tâche difficile. Nos résultats montrent que les individus hautement susceptibles aux suggestions ont, au contraire des individus non ou peu susceptibles, augmenté la justesse de leurs réponses après avoir reçu la suggestion. Nous établissons que les implications de nos résultats vont au-delà de la croissance des connaissances théoriques concernant l'hypnose et la perception visuelle et détiennent une valeur médicale et de potentielles applications cliniques. Suivant cet ordre d'idées, MoTraK peut servir d'outil pionnier dans l'exploration des interactions corps–esprit telles que l'effet placebo et les régulations descendantes (top–down).
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Katzenbach, Ray J. "Measuring Growth: The Reliability and Validity of the Utah Recovery Scale." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3561.
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Recently the direction of consumer mental health care in the United States has shifted in terms of its approach to recovery. In this sense recovery is not thought to be a complete amelioration of symptoms, but rather the acquisition of meaningful relationships, independent living, and fulfilling work. In response to these changes, the Utah division of the National Alliance for the Mentally Ill (NAMI-Utah) conducted consumer focus groups for the purpose of developing a tool to monitor this new conceptualization of recovery. The focus groups generated 10 recovery indicators based on recovery as the Substance Abuse and Mental Health Services Administration have defined it. This study explored initial psychometric reliability and validity estimates for these recovery indicators and their ability to track changes in recovery over time. In addition, the study also explored the relationship between distress reduction and recovery both concurrently and over time.
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Horák, Miroslav. "Konstrukční návrh lineární osy pro těžký obráběcí stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400950.
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This diploma thesis deals with the design of linear axis for heavy machine tool. The thesis describes the definition of heavy machine tool and its basic construction nodes. The next chapter describes the components of the linear feed assemblages, the basic principles of use and their advantages and disadvantages. On the basis of this research part there are selected variants of the solution and in the last part of the thesis there is a design of the axis X of the gantry machine tool. Part of the work is a 3D model of the proposed feed assemblages and part of the drawing documentation.
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De, Jong Herman. "Measuring resilience, happiness and sense of coherence of teachers in rural schools." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/40462.
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The purpose of this study is to describe and explore the happiness, sense of coherence and resilience of rural teachers from a positive psychology framework where positive and healthy adaptation is emphasized. This study forms part of the dissemination phase of a longitudinal study known as STAR (Supportive Teachers Assets and Resilience). Completed questionnaires by twelve rural teachers in STAR schools (2 primary and 1 secondary) in rural Mpumalanga were purposively sampled as data sources for secondary analysis. The measures included the Oxford Happiness Questionnaire (OHQ), Resilience Scale (RS-14) and the Orientation to Life Questionnaire (SOC-13). Results are presented as descriptive and non-parametric statistics.
Results indicated that teachers possess High Moderate to High levels of happiness, Moderate to High Moderate sense of coherence, and High Moderate to high levels of resilience. There was no significant relationship between happiness, sense of coherence and resilience. No significant differences were observed between levels of happiness, sense of coherence and resilience of teachers in (Pre- STAR intervention and post- STAR intervention); nor with regards to gender. Theorizing the findings of this study within the theoretical framework of positive psychology indicates that despite significant risk and adversity, teachers are able to demonstrate positive psychological constructs in the form of happiness (extraversion, kindness, humor, sense of purpose, aesthetic appreciation, locus of control, positive affect, self-efficacy, physical health and self-esteem ), sense of coherence (comprehensibility, manageability and meaning) and resilience (self-reliance, having a purposeful and meaningful life, equanimity, perseverance and existential aloneness).Dissertation (MEd)--University of Pretoria, 2013.
gm2014
Educational Psychology
unrestricted
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O'Rourke, Justin John Francis. "Posttraumatic growth in Huntington disease: measuring the effects of genetic testing and disease on positive psychological change." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/1167.
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Huntington disease (HD) is a genetically transmitted fatal neurodegenerative condition that currently has no cure. The symptoms of HD are manifested as cognitive declines, neuropsychiatric disturbances, and motor dysfunction. An autosomal dominant genetic defect is responsible for the onset of HD, which means that the children of an affected parent have a 50% chance of inheriting the disease. Predictive genetic testing for HD has been available since 1993, and a positive test result means that a person will develop HD with 100% certainty. People who have the HD-gene expansion, but have not yet manifested unequivocal motor signs, are said to be in the prodromal phase of HD. A number of studies have examined concerns about the utility of genetic testing and its negative psychological consequences for gene-expanded and non-expanded individuals (e.g., traumatization, suicidal ideation). Although research has understandably focused on the potential for distress, there has been some evidence suggesting that individuals may actually experience psychological growth related to a receiving a genetic test result (e.g., improved relationships, pursuing new opportunities). The aim of the present study was to understand the relationship between genetic testing, prodromal HD symptoms, and posttraumatic growth (PTG).
Participants were recruited through the multinational PREDICT-HD study (Jane Paulsen, PI) and they completed the Posttraumatic Growth Inventory (PTGI; Tedeschi & Calhoun, 1996) to assess permanent positive psychological change as a result of learning about their HD-gene status. The Symbol Digit Modalities Test (Smith, 1991), Unified Huntington's Disease Rating Scale Motor Exam (Huntington's Study Group, 1996), and the SCl-90-R Depression subscale (Derogatis, 1994) were also completed. A total of 82 gene-expanded patients and 37 non-expanded patients took part in this study.
Results revealed that gene-expanded and non-expanded individuals reported experiencing PTG, particularly in their appreciation for life and ability to relate to others. Gene-expanded and non-expanded participants did not differ in the amount of growth they reported, which indicated that the outcome of genetic testing was not related to how much growth people experienced. Age and gender were associated with PTG, with younger participants and women reporting the most growth. The amount of time elapsed since genetic testing, estimated proximity to a diagnosis of HD, and the clinical characteristics of prodromal HD were not related to PTG. In conclusion, people experience positive psychological change as result of genetic testing for HD. The findings of this study have important implications for future research and for mental health professionals assisting people through the genetic counseling process.
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Lewis, Deborah Kay. "Ohio Public School Students' Out-Of-School Time Study: Measuring the Impact of Ohio's 4-H Youth Development Community Club Program." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1211908489.
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Erhart, Amber Christine. "EVALUATING THE PREDICTIVE VALIDITY OF ACADEMIC AND SOCIAL-EMOTIONAL SCREENING ASSESSMENTS FOR MEASURING ACADEMIC AND SOCIAL-EMOTIONAL SUCCESS AT THE END OF FIRST GRADE." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/222715.
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School PsychologyPh.D.
By the end of the kindergarten, students are expected to possess early academic skills as well as the social maturity to be successful in first grade. Students leaving kindergarten without these readiness skills are sometimes held back in first grade or referred for a special education evaluation in later grades if they fail to make adequate progress. However, before a special education referral can be made, the education system must demonstrate that the deficit is not due to a lack of instruction. Response-to-Intervention is a preventive intervention framework supported by federal legislation (No Child Left Behind (NCLB); 2002 and Individuals with Disabilities Education Act (IDEIA); 2004) that ensures that only valid special education referrals (i.e., referrals based on quantitative data) are processed. Using a multi-tiered assessment and intervention approach, students are first identified as at-risk through the use of screening tools designed to indicate academic or behavioral deficits. At-risk students are then exposed to evidence-based interventions with increasing levels of intensity to determine the type and amount of support needed. However, response-to-intervention has yet to be extended down to kindergarten students, and the screening instruments available for this population have yet to be evaluated for their predictive validity with end of first grade academic and behavioral performance. This study examines the predictive validity of psychometrically sound academic and behavioral screening instruments with first grade academic and social-emotional success. Participants included kindergarten students (n=290) from five ethnically diverse elementary schools located in a small suburban city in a mid-Atlantic state. Early literacy, early numeracy, writing, and social-emotional screening assessments were administered three times a year to determine whether the screening tools were adequate measures of kindergarten readiness skills for first grade academic and social-emotional success. Participants were followed from the beginning of kindergarten until the end of first grade to determine which skills measured by the screening assessments were the most predictive of a conceptual model of first grade academic and social-emotional success. The results indicated that the social-emotional screening assessment was able to significantly predict social-emotional success at the end of first grade. Kindergarten academic screening assessments however, were not able to significantly predict first grade academic success. Results also indicated that there were significant differences in scores across gender, ethnicity and family composition.
Temple University--Theses
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Nkonki, Lungiswa Leonora. "Measuring health inequity amongst a cohort of HIV positive mother and child pairs in South Africa : the relationship between household socio-economic status and child health outcomes." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/9461.
Full textAbstract:
Includes bibliographical references (leaves 105-122).The purpose of this study was to measure health inequity amongst a cohort of HIV positive mother-child pairs in South Africa with a focus on the relationship between household socio-economic status and child health outcomes. This study is a secondary analysis to a prospective cohort study of mothers and infants participating in three of the eighteen national PMTCT sites in South Africa. Women (and their infants) were recruited prior to, or at the time of delivery and followed until the infants were 36 weeks of age. Three sites were purposefully sampled in order to reflect different socio-economic regions, rural-urban locations and my prevalence rates. The study made use of principal component analysis (PCA) to measure household socio-economic status. The selection of both variables that are indicators of socio-economic status and the use of PCA as a technique of assigning of weights to the chosen indicators of socio-economic status was informed by the literature. The selection of health outcomes was based on the renewed focus on child health. This study is organized in five chapters. The first chapter provides the rationale for measuring inequities in child health with particular focus on South Africa and states the aim and objectives. Chapter Two reviews different forms of literature that were pertinent in understanding the importance of child health, the current state of child health and the relationship between inequities and poor child health outcomes. Chapter Three gives a detailed discussion of the data collection and quality control methods employed to achieve good quality data in the primary study. Then it discusses choosing indicators of socio-economic status and intricacies involved in measuring socio-economic status. In addition, it outlines the chosen child health outcomes, motivation for their choice and their measurement.
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Briere, Mathilde. "La déviance positive au service de la survie organisationnelle : analyse d’un concept et de ses déterminants Development of a scale measuring positive deviant behaviors Le rôle dela norme dans la performance individuelle des salariés: perspective de réductions des injonctions para-doxales organisationnelles Analysis of an integrative typologyof positive deviance: Exploratory study with a sample of French employees." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC0108.
Full textAbstract:
Le leadership pourrait à lui seul expliquer plus de 40% de la variance de la performance des organisations (Day & Lord, 1988). Cette statistique souligne l’importance à consacrer au leadership dans les organisations et explique, en partie, l’engouement actuel des cabinets de conseil sur les thématiques du leadership. Ce travail de recherche - débutant à l’automne 2016, en partenariat entre le cabinet Stimulus et le laboratoire LIPHA - s’inscrit dans cette double actualité économique et scientifique. Il a pour ambition de tester différentes stratégies de leadership sur la performance de l’organisation. Pour ce faire, ce projet de recherche s’articule autour de trois volets. Le premier volet aura pour finalité de réaliser un état des lieux complet des progrès de la recherche dans le domaine de la déviance positive. Le second volet s’intéressera à différentes formes de leadership qualifiées de positives et répondant à la crise des modèles de management traditionnels. Enfin le dernier volet aura pour ambition de tester ces différentes formes de leadership sur l’apparition de comportements positivement déviants permettant d’atteindre une performance organisationnelle exceptionnelleThe leadership alone could explain more than 40% of the variance of the performance of organizations (Day & Lord, 1988). This statistic highlights the importance to devote to leadership in organizations and explains, in part, the current interest of consulting firms on the themes of leadership. This research - beginning in fall 2016 in partnership between the consulting firm Stimulus and the laboratory LIPHA - reflects this dual economic and scientific news. It aims to test different leadership strategies on the performance of the organization. This research project is based on three components. The first component will aim to achieve a complete overview of the progress of research in the field of positive deviance. The second component will focus on different forms of skilled leadership and positive response to the crisis of traditional management models. Finally, the last component will aim to test these different forms of leadership on the occurrence of deviant behavior positively to achieve exceptional organizational performance
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Huang, Yan-Sheng, and 黃彥勝. "Optical Sensor for Measuring Position and Slanting Direction of Flat Surface." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/5kntga.
Full textAbstract:
碩士國立中正大學
機械工程學系暨研究所
103
The conventional auto-collimator can only measure the tilt of the sample surface, however, it is unable to measure the distance from the sample. Therefore, this paper presents a non-contact optical measuring system for an inclined surface, which can measure the defocusing amount (δ) and the tilt (α, β) of the sample surface. Consequently, the scope of application of this system will be more extensive. In this thesis, we verify the feasibility of the proposed system with qualitative and quantitative analysis respectively. In the qualitative analysis, the architecture of the proposed measurement system is established in the optical simulation software ZEMAX to observe the characteristics and trends of the proposed system. In the quantitative analysis, a complete mathematical model of the proposed system is established by using homogeneous transformation matrix (HTM) and using the skew ray-tracing method to derive the actual laser light transfer within the proposed measurement system. After completing the above analysis, we measure the performance of the proposed system using a laboratory-built prototype. Finally the experimental results are analyzed and compared to verify the feasibility of the proposed system. Keyword：
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CHEIN, HUNG-CHIH, and 簡鴻智. "Measuring Position and Marketing Strategy of E SKY LAND Shopping Mall." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/wq7f6d.
Full textAbstract:
碩士國立高雄科技大學
行銷與流通管理系
107
In recent years, the growth of department stores and shopping malls has slowed down, and the competition in department stores and shopping malls in southern Taiwan has become increasingly saturated. The E SKY LAND is scheduled to be established in the Republic of China in 110 years and will be invested in the Kaohsiung Shopping Center market. How to attract customers to the shopping mall? The positioning and marketing strategy of the E SKY LAND Shopping Mall before its opening will be the key to the success of the operation, and it is also a case worthy of study. This study first uses quality and quantitative research methods to visit and survey target customers. It is known that the main factors for customers to choose shopping malls are ” brands and products that you want to buy”,” parking spaces with enough parking”, and “brands you want to buy have attractive promotions (discounts)”. This study found that in the southern Taiwan region, respondents were satisfied with the satisfaction of “brands and products that you want to buy”, the satisfaction of Hanshin Arena Shopping Plaza is higher than that of Dream Mall, E-DA OUTLET MALL and TAROKO PARK. The Dream Mall and E-DA OUTLET MALL cannot distinguish between high and low. In terms of satisfaction with " parking spaces with enough parking ", the satisfaction of the Dream Mall is higher than Hanshin Arena Shopping Plaza, E-DA OUTLET MALL and TAROKO PARK. In terms of satisfaction with " brands you want to buy have attractive promotions (discounts) ", the satisfaction of E-DA OUTLET MALL and Dream Mall is higher than Hanshin Arena Shopping Plaza and TAROKO PARK. The E-DA OUTLET MALL and Dream Mall cannot distinguish between high and low. Based on the findings, this study makes an inference description of the future target market profile of the E SKY LAND Shopping Mall, and proposes its positioning and marketing strategy. Keywords: shopping mall, satisfaction, positioning, marketing strategy
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Lin, I.-Hsu, and 林義栩. "Measuring the concentration of saline water under the electrical field by optical position sensitive detection." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/hj3pq9.
Full textAbstract:
碩士國立交通大學
光電科技學程
105
In this study, we propose to use a novel way of the non-invasive optical method to measuring the concentration of saline water. We put the electrodes on both sides of the saline water, and the Na ion and Cl ion of the saline water will bring in separation of different degrees due to the electric field in different application of electric field. According to our experiments, we can further the analysis for the feasibility of desalination of seawater (brine) without electrolysis and consumption of thin films. It is known from the experimental results that the count of ions is fixed to be attracted in the same electric field. If we want to increase the desalination rate, the feasible method is to increase the voltage or reduce the distance of the electrode plate.
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Chittleborough, Catherine R. "A life course approach to measuring socioeconomic position in population surveillance and its role in determining health status." 2009. http://hdl.handle.net/2440/53358.
Full textAbstract:
Measuring socioeconomic position (SEP) in population chronic disease and risk factor surveillance systems is essential for monitoring changes in socioeconomic inequities in health over time. A life course approach in epidemiology considers the long-term effects of physical and social exposures during gestation, childhood, adolescence, and later adult life on health. Previous studies provide evidence that socioeconomic factors at different stages of the life course influence current health status. Measures of SEP during early life to supplement existing indicators of current SEP are required to more adequately explain the contribution of socioeconomic factors to health status and monitor health inequities. The aim of this thesis was to examine how a life course perspective could enhance the monitoring of SEP in chronic disease and risk factor surveillance systems. The thesis reviewed indicators of early life SEP used in previous research, determined indicators of early life SEP that may be useful in South Australian surveillance systems, and examined the association of SEP over the life course and self-rated health in adulthood across different population groups to demonstrate that inclusion of indicators of early life SEP in surveillance systems could allow health inequities to be monitored among socially mobile and stable groups. A variety of indicators, such as parents’ education level and occupation, and financial circumstances and living conditions during childhood, have been used in different study designs in many countries. Indicators of early life SEP used to monitor trends in the health and SEP of populations over time, and to analyse long-term effects of policies on the changing health of populations, need to be feasible to measure retrospectively, and relevant to the historical, geographical and sociocultural context in which the surveillance system is operating. Retrospective recall of various indicators of early life SEP was examined in a telephone survey of a representative South Australian sample of adults. The highest proportions of missing data were observed for maternal grandfather’s occupation, and mother’s and father’s highest education level. Family structure, housing tenure, and family financial situation when the respondent was aged ten, and mother and father’s main occupation had lower item non-response. Respondents with missing data on early life SEP indicators were disadvantaged in terms of current SEP compared to those who provided this information. The differential response to early life SEP questions according to current circumstances has implications for chronic disease surveillance examining the life course impact of socioeconomic disadvantage. While face-to-face surveys are considered the gold standard of interviewing techniques, computer-assisted telephone interviewing is often preferred for cost and convenience. Recall of father’s and mother’s highest education level in the telephone survey was compared to that obtained in a face-to-face interview survey. The proportion of respondents who provided information about their father’s and mother’s highest education level was significantly higher in the face-to-face interview than in the telephone interview. Survey mode, however, did not influence the finding that respondents with missing data for parents’ education were more likely to be socioeconomically disadvantaged. Alternative indicators of early life SEP, such as material and financial circumstances, are likely to be more appropriate than parents’ education for life course analyses of health inequities using surveillance data. Questions about family financial situation and housing tenure during childhood and adulthood asked in the cross-sectional telephone survey were used to examine the association of SEP over the life course with self-rated health in adulthood. Disadvantaged SEP during both childhood and adulthood and upward social mobility in financial situation were associated with a reduced prevalence of excellent or very good health, although this relationship varied across gender, rurality, and country of birth groups. Trend data from a chronic disease and risk factor surveillance system indicated that socioeconomic disadvantage in adulthood was associated with poorer self-rated health. The surveillance system, however, does not currently contain any measures of early life SEP. Overlaying the social mobility variables on the surveillance data indicated how inequities in health could be differentiated in greater detail if early life SEP was measured in addition to current SEP. Inclusion of life course SEP measures in surveillance will enable monitoring of health inequities trends among socially mobile and stable groups. Life course measures are an innovative way to supplement other SEP indicators in surveillance systems. Considerable information can be gained with the addition of a few questions. This will provide further insight into the determinants of health and illness and enable improved monitoring of the effects of policies and interventions on health inequities and intergenerational disadvantage.http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1367190
Thesis (Ph.D.) - University of Adelaide, School of Population Health and Clinical Practice, 2009
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Li, Chun-Ming, and 李俊明. "Development of a novel measuring system for measurement of the three-dimensional tip position and outer diameter of a micro-drill." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/745c2h.
Full textAbstract:
碩士國立虎尾科技大學
光電與材料科技研究所
96
In the study, a non-contact three-dimensional micro-drill tip position and outer diameter optical measuring system has been developed. The measurement system is only composed of a laser diode and a quadrant detector. The focused laser beam is projected on the quadrant detector. The measuring principle uses knife-edge scanning method and diffraction method to measure the energy distribution between the micro-drill position and the quadrant detector. Using the diffraction method, the resolutions of spatial coordinates of X- and Y-axial measurement are both estimated to be 0.2μm. Using the knife-edge scanning method, the resolution of Z-axial measurement is estimated to 0.75μm. Comparisons with the image measurement system and the proposed knife-edge scanning method, the measuring accuracy of the micro-drill outer diameter with 100μm and 200μm of are both 99%, and with 1.5mm is 98%.
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Pan, Po-Wei, and 潘伯威. "Towards Maximizing Measuring Accuracy of a Optical Blood Pressure Non-invasive Cuffless Array Sensor via Radial Artery Position Detection and Analog Signal Processing." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/m3we37.
Full textAbstract:
碩士國立交通大學
電控工程研究所
106
A new optical PPG sensor for continuous blood pressure (BP) monitoring is successfully developed by this thesis. BP device introduces the principle of photoplethysmography (PPG) to detect intravascular blood volume changes and calculate blood pressure. The real-time system adopts LEDs with muti-wavelength of 530, 660 and 940 nm. The analog front end (AFE) circuit includes a preamplifier, a band-pass filter, a programmable gain amplifier (PGA), LED driver, a microprocessor unit (MCU), and a wireless module. The pass-band frequency of filter is from 0.3 to 7.2 Hz. The PGA of adjustable gain has 8 channels to adjust. A computer is also used to display the continuous BPs, detect the pulse position and record statistical analysis/results for users. As results, 10 subjects in the experimental validation, in which the obtained BPs are compared with the results from a commercial BP monitor by OMRON HEM-7310. The maximum error of experimental results is ± 6 mmHg, which is less than ±8 mmHg conforming to the requirement by the Association for the Advancement of Medical Instrumentation (AAMI).
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Miethling, Klaus-Dietmar. "Beiträge zur Richtighaltung von Kreisformmessgeräten." Doctoral thesis, 1987. https://monarch.qucosa.de/id/qucosa%3A20437.
Full textAbstract:
In der Arbeit werden normativ-technische und verfahrenstechnische Voraussetzungen zur Richtighaltung von Kreisformmessgeräten dargelegt. Dazu wird ein umfassendes Begriffssystem für die allgemeine Beschreibung von Bewegungsabweichungen von bewegten Bauteilen an Werkzeugmaschinen oder Formmessgeräten, z.B. Kreisformmessgeräten, als Grundlage für ihre Tolerierung und Messung vorgeschlagen. Bekannte Messverfahren zur Bestimmung von Rotationsabweichungen der Spindel von Kreisformmessgeräten werden theoretisch und praktisch untersucht. Es wird ein neues Messverfahren, das kontinuierliche Relativlagenmessverfahren, entwickelt und ebenfalls untersucht. Die untersuchten Messverfahren zur Bestimmung von Rotationsabweichungen ermöglichen verschiedene Messunsicherheiten bis zu weniger als 0,02 µm. Vorschläge für die Gestaltung des Prüfschemas zur Richtighaltung von Kreisformmessgeräten werden unterbreitet.
auch unter: Zentralbibliothek/Magazin/MPF1443:Verzeichnis der verwendeten Abkuerzungen V
Vorwort VII
1. Einleitung 1
2. Grundlagen der radiusbezogenen Kreisformmessung 2
2.1. Eliminierung der Exzentrizitaet 2
2.2. Messunsicherheit der Kreisformmessung 3
2.3. Bewegung eines rotierenden Teiles 3
3. Begriffe und Definitionen zur Bewegung eines Teiles 5
3.1. Allgemeine Bemerkungen 5
3.2. Internationaler Stand 9
3.2.1. Bekannte Begriffe und Definitionen fuer die
Bewegung eines Teiles 10
3.2.2. Bekannte Begriffe und Definitionen fuer die
Bewegung eines rotierenden Teiles 11
3.2.3. Einschaetzung 14
3.3. Aufgabenstellung zur Erarbeitung von Begriffen
und Definitionen 15
3.4. Vorschlag fuer neue Begriffe und Definitionen 16
3.4.1. Vorbemerkungen 16
3.4.2. Begriffe fuer die Verschiebung eines Punktes eines
bewegten Teiles 19
3.4.2.1. Begriffe fuer die allgemeine Bewegung 19
3.4.2.2. Begriffe fuer die Rotation 21
3.4.2.3. Begriffe fuer die Translation 23
3.4.2.4. Erlaeuterungen zu den Begriffen 25
3.4.3. Begriffe fuer die Verdrehung einer Strecke eines
bewegten Teiles 31
3.4.3.1. Begriffe fuer die allgemeine Bewegung 31
3.4.3.2. Begriffe fuer die Rotation und Translation 37
3.4.3.3. Erlaeuterungen zu den Begriffen 37
3.5. Vergleich und Einschaetzung der neuen Definitionen 43
3.6. Zeichnungsangaben von Bewegungs- und
Verdrehungsabweichungen 49
4. Messverfahren zur Bestimmung von
Rotationsabweichungen 51
4.1. Theoretische Untersuchungen 52
4.1.1. Vergleichsmessverfahren 53
4.1.2. Mehrlagenmessverfahren 54
4.1.2.1. Umkehrmessverfahren 55
4.1.2.2. Relativlagenmessverfahren 57
4.1.2.2.1. Relativlagenmessverfahren mit zwei Messstellungen 58
4.1.2.2.2. Relativlagenmessverfahren mit punktweiser
Berechnung 59
4.1.2.2.3. Relativlagenmessverfahren mit Fourier-Reihen-
Berechnung 60
4.1.2.3. Kontinuierliches Relativlagenmessverfahren 61
4.1.3. Weitere Messverfahren 64
4.1.3.1. Frequenztrennmessverfahren 64
4.1.3.2. Fotodiodensignalmessverfahren 65
4.1.4. Einschaetzung 66
4.2. Messtechnische Untersuchungen 67
4.2.1. Relativlagenmessverfahren mit punktweiser
Berechnung 68
4.2.2. Vergleichsmessverfahren 73
4.2.3. Kontinuierliches Relativlagenmessverfahren 76
4.2.4. Einschaetzung 86
4.3. Messverfahren zur Richtighaltung von
Kreisformmessgeraeten 87
5. Metrologische Richtighaltung 88
5.1. Pruefschema fuer Kreisformmessgeraete 90
5.1.1. Spezialnormal der Laenge fuer die Kreisform 91
5.1.2. Referenznormale 91
5.1.3. Arbeitsmessmittel 92
5.2. Pruefvorschriften fuer Kreisformmessmittel 93
5.2.1. Pruefvorschriften fuer die Eichung der Haupt-
normale 93
5.2.2. Betriebliche Pruefvorschriften fuer
Kreisformmessgeraete 93
5.3. Einschaetzung 95
6. Weitere Aufgaben 95
Verzeichnis der Anmerkungen 97
Literaturverzeichnis 98
Verzeichnis der Abbildungen 105
Verzeichnis der Anlagen 108
Anlagen 110
Thesen
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Chu-Seng, Cheng, and 鄭竹昇. "COMPASS: Community Optimized Measuring of Positions Associated with Sensing Singnals." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/43106135019665257218.
Full textAbstract:
碩士國立陽明大學
醫學工程研究所
97
In this paper we present COMPASS (Community-Optimized Measuring of Positions Associated with Sensing Signals), a method to improve indoor location sensing accuracy using Radio Frequency Identification (RFID), based on the design using reference tags. The major advantage of COMPASS is that it provides more accuracy location, compared with LANDMARC, and keeps the beauty of true simplicity, giving it the ability to track down moving object in real-time environment. Yet, based on our result, we do see that while improving the average accuracy, some measurements turn out having a larger error, making a bigger maximum error of the algorithm. We find out ways to improve and predict large error observations, forming two types of hybrid systems, one with a dynamic community size and the other with LANDMARC. Both systems succeed a better average positioning accuracy and less maximum error compared with the original COMPASS system. Finally, we point out suggestions for further research and future work.
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HSU-JU-WEN and 許如玟. "Measuring the Energy Expenditure of Women with Exercise Habits Using Inertial Sensors Worn in Different Positions." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/wm5b72.
Full textAbstract:
碩士國立體育大學
運動科學研究所
107
Measuring the Energy Expenditure of Women with Exercise Habits Using Inertial Sensors Worn in Different Positions Abstract The purpose of this study was to investigate the accuracy of measuring the energy expenditure (EE) of inertial sensors with different wearing positions. Methods: A total of 52 healthy adult females were recruited as subjects with regular physical activity at a frequency of three days per week for at least 30 minutes per exercise. Using the Cardiopulmonary Exercise Testing System as a criterion measurement (CM), and with the ActiGraph GT9X accelerometer worn on the wrist, waist and ankle was used simultaneously to measure 6 speeds (3.24, 4.80, 6.42, 8.04, 9.66, & 11.28 km/h) treadmill test. In order to understand the difference in energy expenditure between the accelerometers of different wearing positions and the standard measurement, one-way ANOVA was used and the Bonferroni method was used for post hoc comparison. Consistency analysis was performed using intraclass correlation coefficient (ICC). The statistical level sets the results of each data significantly as α = .05. Results: When the treadmill speed was 3.24 km/h, the three accelerometer wear positions were significantly different from the standard measurement results (p < .001). At speeds of 4.8, 6.42, 8.04, 9.66, and 11.28 km/h, the accelerometer worn on the wrists and ankles were significantly different from the standard measurements (p < .05). Only the accelerometer worn on the waist did not reach a significant difference from the standard measurement results (p > .05), and the waist had the highest ICC value (ICC = .915). Conclusion: Accelerometer worn at the waist have better energy expenditure measurement capabilities, and the wrist and ankle wear positions are underestimated and overestimated, respectively. Therefore, according to the results of this study, it is recommended that the accelerometer be worn on the waist as the best measurement position. Keywords: triaxial accelerometer, gas analyzer, energy expenditure
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Berro, Mouhammed Jandal. "Development and testing of alternative methods for speeding up the hydraulic data transmission in deep boreholes." 2018. https://tubaf.qucosa.de/id/qucosa%3A33106.
Full textAbstract:
For developing the available hydrocarbon reserves and for exploring new reservoirs, deeper and more complex wells are drilled. Drilling such deeper and complex wells requires a constant monitoring and controlling of the well paths. Therefore, the bottom hole assembly, the lower section of the drill string above the drill bit, is equipped with numerous measuring sensors for collecting geological and directional data while drilling. The collected data have to be transmitted to the surface in real time.
Prior to transmit the data measured downhole to the surface, they are processed and translated into a binary code. Accordingly, the data will be represented as a series of zeroes and ones. The most common method for data transmission in boreholes is the so called mud pulse telemetry which sends the information through the drilling mud inside the drill string by means of coded pressure pulses. There are two types of devices available for downhole pressure pulses generation. The first type is the (positive or negative) pressure pulser which transmits the data by quasi-static variations of the pressure level inside the drill string. The second type is the (rotating or oscillating) mud siren which transmits the data by generating continuous pressure waves at specific frequencies.
The main disadvantage of the mud pulse telemetry is its low data transmission rate which is about 10 bps. This data rate is very low compared to the measured amount of raw data. Therefore, the efficiency of the mud pulse telemetry must be improved, so that the data could be transmitted at higher rates. The present research work presents different developed and tested concepts for increasing the efficiency and the data transmission rate of the mud pulse telemetry. Both, the transmitter and the receiver end, were taken into consideration by developing the new concepts. Different hardware and software tools were used for performing the present research work. The available flow loop test facility and the experimental prototypes of the mud siren and positive pulser were used. The test facility was extended in order to enable the investigation of the new concepts. The available 3D numerical model (ANSYS CFX) was modified and extended in order to study the new concepts.
At the transmitter end, a novel concept for a hybrid mud pulse telemetry system was developed and successfully tested. Here, two different types of mud pulse telemetry could be used in a combination, such as a mud siren and a pressure pulser. The developed concept was registered at the German Patent and Trade Mark Office for a patent in 2018. Two concepts for a multi-frequency mud siren were developed for simultaneous generation of two frequencies. In the first approach, two sets of stator/rotor were installed in a row connection, while they were installed in a parallel connection in the second approach. The two concepts were registered at the German Patent and Trade Mark Office for patents in 2015. An experimental multi-frequency generator was built and used for testing of several new ideas, such as transmitting the data using several carrier frequencies at the same time, transmitting the data with different wave forms (sine, sawtooth, triangle and rectangle), or transmitting the data using the chirp modulation. The innovative design of the experimental multi-frequency generator was registered at the German Patent and Trade Mark Office for patents in 2016.
At the receiver end, two different methods for processing and analyzing the received multi-frequency signals using the Wavelet and Fourier analysis were drafted and tested. A novel concept for the use of a multi-sensor receiver was developed and successfully tested. The use of a multi-sensor receiver could strongly improve the detection of the received signals.:Table of Contents
Declaration ii
Abstract iii
Acknowledgements v
Table of Contents vi
List of Abbreviations x
List of Symbols xii
CHAPTER 1 Introduction 1
CHAPTER 2 Modern Drilling Technology and Low Data Transmission Rate as a Limitation 5
2.1 Introduction to the modern drilling technology 5
2.1.1 Directional drilling technology 5
2.1.2 Steering technology 6
2.1.3 Measuring technology 8
2.1.4 Technology of data transmission in boreholes 9
2.2 Low data transmission rate as a problem with respect to the whole drilling process 13
CHAPTER 3 Fundamentals of Communication Technology 16
3.1 Modulation techniques for data transmission in baseband 16
3.2 Modulation techniques for data transmission in passband 17
3.3 Multiple frequency and chirp spread spectrum modulation techniques 19
3.4 Digital signal processing 21
3.4.1 Fourier transformation 21
3.4.2 Continuous wavelet transformation 23
3.4.3 Filtering 24
CHAPTER 4 State of the Art for Mud Pulse Telemetry Systems 26
4.1 Historical development of mud pulse telemetry including latest improvements applied for increasing its data transmission rate 26
4.2 Available types of mud pulse telemetry devices 30
4.2.1 Negative pulser 31
4.2.2 Positive pulser 32
4.2.3 Mud siren 32
4.2.4 Oscillating shear valve 33
4.3 Limitations of data transmission via mud pulse telemetry 34
4.3.1 Effect of noise sources in the mud channel on the transmission signal 34
4.3.2 Effect of attenuation in the mud channel on the transmission signal 36
4.3.3 Effect of reflections and their interference with the main transmission signal 37
4.3.4 Pass and stop bands 38
4.4.5 Minimum transmission time slot 38
CHAPTER 5 Novel Concepts and Tools for Increased Data Transmission Rates of Mud Pulse Telemetry 40
5.1 Transmitter end 41
5.1.1 Hybrid mud pulse telemetry (HMPT) 41
5.1.2 Multi-frequency generator 43
5.2 Receiver end 45
5.2.1 Investigation of the Wavelet analysis suitability for multi-frequency signal detection 45
5.2.2 Flexible placement of multi-sensor receiver 46
CHAPTER 6 Laboratory Test Facility and Used Hard and Soft Tools 49
6.1 Laboratory test facility for hydraulic data transmission in boreholes 49
6.2 Experimental prototypes of the pressure pulsers and mud siren 53
6.3 3D numerical simulation model for the test facility and mud siren 55
6.4 MATLAB software 58
CHAPTER 7 Hybrid Mud Pulse Telemetry (HMPT) System 59
7.1 Combination of mud siren and negative pressure pulser 60
7.2 Combination of mud siren and positive pressure pulser 63
7.3 Evaluating the laboratory investigations of the hybrid mud pulse telemetry (HMPT) system 66
CHAPTER 8 Mathematical and Numerical Investigation of the Concept of the Multi-Frequency Mud Siren 68
8.1 Preliminary considerations for the concept of the multi-frequency mud siren 69
8.2 Mathematical model investigation of different approaches for the multi-frequency mud siren concept 71
8.2.1 Multi-frequency mud siren with stators and rotors in a row 72
8.2.2 Multi-frequency mud siren with parallel connection of stators and rotors 74
8.3 Numerical model investigation of multi-frequency mud siren with two sets of stator/rotor in a row 77
8.3.1 Numerical simulations for data transmission with a multi-frequency mud siren using two carrier frequencies 79
8.3.2 Evaluation of the simulation results 81
8.3.3 Increasing the transmission reach of the mud siren for deep drilling operations 83
CHAPTER 9 Laboratory Investigations of Multi-Carrier Hydraulic Data Transmission Using an Experimental Multi-Frequency Generator 85
9.1 Laboratory multi-carrier frequency transmission tests 87
9.2 Investigation of the Wavelet analysis suitability for the detection of multi-frequency signal transmitted in boreholes 95
9.3 Initial investigations of hydraulic data transmission using chirp modulation and different pressure wave forms 100
9.3.1 Data transmission using chirp modulation (Chirp Spread Spectrum, CSS) 100
9.3.2 Data transmission using different wave forms 101
CHAPTER 10 Investigation of the Use of a Multi-Sensor Receiver for Improving the Hydraulic Data Transmission in Boreholes 104
10.1 Numerical model investigation of the use of a multi-sensor receiver 104
10.1.1 Data transmission using single-input and multiple-output (SIMO) 104
10.1.2 Data transmission using multiple-input and multiple-output (MIMO) 107
10.2 Laboratory investigations of the use of a multi-sensor receiver 108
10.3 Evaluating the use of a multi-sensor receiver for improving the hydraulic data transmission in boreholes 112
CHAPTER 11 Conclusion and Outlook 116
11.1 Conclusion 116
11.2 Outlook 120
References 122
List of Figures 129
List of Tables 136
List of Publications 137
List of Patents 138
Appendix- Chapter 7 139
Appendix- Chapter 8 141
Appendix- Chapter 9 142
Appendix- Chapter 10 146
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Austin, Judith Florence. "Measuring HIV Exposure amongst Men who have Sex with Men in the USA: Implications for Risk Assessment in HIV Prevention Studies." Thesis, 2015. https://doi.org/10.7916/D8MG7NG7.
Full textAbstract:
In the context of decreasing mortality and increasing prevalence, prevention of HIV-transmission represents a public health priority. In the United States, the majority of infections are sexually-acquired, with men who have sex with men and minorities disproportionately affected. Although a number of promising biomedical prevention approaches have emerged over the past decade, a further 20 years could be needed before a suitable product becomes widely available. Evidence from vaccine and microbicide trials has shown that success in one population may not be replicated in another. To understand surprising or unexpected results, investigators need chronologically concordant evidence of both study product adherence and viral exposure. Since exposure to HIV cannot yet be independently verified, in seeking to measure this variable, investigators target the sexual behaviors through which it takes place deriving data for these surrogate measures from study participants' voluntary self-reports.
Likely sources of reporting bias and efforts to minimize this phenomenon in the context of HIV-prevention research are critically reviewed in Chapter 1. Research describing the role of cognitive and affective functioning in the preparation of responses to potentially threatening questions is examined. Studies investigating techniques such as the use of colloquial language to facilitate comprehension, or variation in the length of the reference period to enhance recall are explored. Research comparing the effect of mode of administration on the amount of proscribed behavior reported - widely believed to correlate with validity - is reviewed. Contextual factors facilitating versus inhibiting disclosure of sensitive information are examined. Finally, risk-behavior measurement approaches used in selected HIV-prevention trials are inspected. Thereafter, the dissertation focuses on the properties of risk-assessment items, formulated specifically to elicit Global recall over six months, or Event-Specific (episodic) memory for selected recent episodes of limited duration, to capture sexual behaviors or temporally related activities. The capacity of the different questionnaire item formats to elicit responses with sufficient construct validity to serve as proxies for HIV-exposure is examined. Data for these studies are drawn from a large randomized controlled trial of a behavioral intervention to prevent HIV-transmission among men who have sex with men. Using a subset of 1295 cases and controls, models with good discriminant validity for HIV are derived separately for the Global and Event-Specific items. Thereafter, selected items from the two formats are combined to produce a single model with excellent discriminant validity, suggesting that these items can adequately represent true HIV-exposure.
Next, a preliminary investigation of the contribution of psychosocial items to the predictive model based on exposure measures is undertaken. Specifically, interaction with exposure measures and the increase in discriminant validity obtained using data derived from constructs of partner type/relationship status, substance use, depressive symptoms and perceived self-efficacy is examined first in stratified analysis and then in logistic regression analysis using the case-control data. Effect-modification is observed for perceived relationship status and non-injection drug use. Evaluation of psychosocial items continues in a cohort study with prospective analysis of follow-up data from all trial participants who returned for at least one follow-up visit. Informed by the case-control study, a series of items representing psychosocial constructs known for their association with HIV-infection are tested for main effects and effect-modification. Evidence of the interaction observed in stratified analyses and confirmed in ordinary logistic regression persists in separate, topic-specific GEE analyses with assorted exposure measures, but abates in repeated measures analyses drawing on all available psychosocial items. Lastly, a single lagged variable indicating primary relationship status of the most recent partner (with respect to the preceding study visit) provides a significant addition to the model. Significant main effects for all except depressive symptoms and perceived self-efficacy and the increase in discriminant validity obtained for the multivariable model versus the `exposure-only' model are sufficient to warrant continued use of these risk-assessment items.
Despite good predictive validity demonstrated for the sexual risk-behavior and psychosocial items, some inconsistent reporting between the Global and Event-specific formats is evident. Likely sources of this reporting bias are considered in light of the literature, and strengths and limitations of the overall study are discussed in the closing chapter.
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HAIKL, Petr. "Ověření funkce bezkontaktního snímače hladiny paliva v palivové nádrži." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-156178.
Full textAbstract:
This work inkluse measurement principles for measuring liquid level in tanks with a focus on fuel. Are described most frequently used types of liquid level sensors, focusing on fuel. The work inkluse design chosen technical solutions fuel level sensor and its technical implementation, including the technical implementation and verification of its functionality and calibration.