Дисертації з теми "RMQS"
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1
Savignan, Lionel. "Distribution d’éléments trace dans les sols de Nouvelle-Aquitaine et suivi de contaminants émergents (Ag, Pd, Pt, Rh)." Thesis, Pau, 2020. http://www.theses.fr/2020PAUU3039.
Анотація:
Cette thèse a pour objectif d’évaluer la distribution spatiale et les origines d’éléments trace anciens et émergents dans les sols de Nouvelle-Aquitaine en se basant sur le Réseau de mesures de la qualité des sols (RMQS). En premier lieu, six éléments trace anciens ont été ciblés (As, Cd, Cu, Cr, Ni, Pb), leur distribution spatiale a été estimée à partir des analyses de 356 échantillons issus de la première campagne RMQS. Les concentrations médianes régionales retrouvées sont proches des valeurs nationales. La comparaison entre les vibrisses régionales et nationales comme valeurs seuils d’anomalie a montré des concentrations régionales anomaliques. A l’aide de système d’information géographique et géostatistiques les origines des éléments trace étudiés dans les sols ont pu être identifiées. L’arsenic a des origines mixtes, géogène et anthropique, liées principalement aux activités minières. Cd, Cr et Ni sont principalement d’origine géogène à l’échelle régionale. Cu a une origine principalement anthropique de par son utilisation comme fongicide pour la viticulture. Pb a également des origines anthropiques liées aux activités minières, aux essences plombées et aux activités cynégétiques. Dans un second temps, 4 éléments émergents (Ag, Pd, Pt, Rh) ont été étudiés à partir de 35 échantillons de sol prélevés durant la deuxième campagne RMQS. Les concentrations retrouvées indiquent que ces sols sont faiblement contaminés par ces éléments. Les analyses statistiques montrent que, d’une part Ag, Pb, Rh et d’autre part Pd et Pt sont corrélés entre eux. L’analyse de la distribution spatiale, avec le croisement d’informations géographiques, géologiques, et agricoles, a montré que les émissions automobiles ne seraient pas une source majeure de PPGE dans les sols d’occupations forestières et agricoles. La distribution de Pd et Pt serait plutôt d’origine naturelle avec de possibles contributions anthropique provenant de : 1) la dispersion longue distance des PPGE par les particules en suspensions dans l’atmosphère ; 2) des intrants, notamment les fertilisants minéraux, pour les sols agricoles. L’origine de Ag et Rh serait principalement aussi d’origine naturelle et les valeurs les plus élevées viendraient de la proximité de gisements et exploitation minière de Ag et PbThe aim of this thesis is to assess the spatial distribution and origins of old and emerging trace elements in soils of the Nouvelle-Aquitaine region based on the French soil monitoring network (RMQS). Firstly, six old trace elements were targeted (As, Cd, Cu, Cr, Ni, Pb), their spatial distribution was estimated from the analyses of 356 samples from the first RMQS campaign. The median regional concentrations found are close to the national values. The comparison between the regional and national whisker values as anomaly threshold values showed anomalous regional concentrations. With the help of geostatistics and geographical information systems, the origins of the trace elements studied in the soils could be identified. Arsenic has mixed geogenic and anthropogenic origins, mainly related to mining activities. Cd, Cr and Ni are mainly of geogenic origin on a regional scale. Cu has a mainly anthropogenic origin due to its use as a fungicide in viticulture. Pb also has anthropogenic origins related to mining activities, leaded gasoline and hunting activities. As a second step, 4 emerging elements (Ag, Pd, Pt, Rh) were studied from 35 soil samples collected during the second RMQS campaign. The concentrations found indicate that these soils are slightly contaminated by these elements. Statistical analyses show that, on the one hand Ag, Pb, Rh and on the other hand Pd and Pt are correlated. The analysis of the spatial distribution, with the cross-referencing of geographical, geological and agricultural information, showed that automobile emissions are not a major source of PPGE in forest and agricultural soils. Rather, the distribution of Pd and Pt would be of natural origin with possible anthropogenic contributions coming from: i) the long-distance dispersion of Pd and Pt by particles suspended in the atmosphere; ii) inputs, notably mineral fertilisers, for agricultural soils. The origin of Ag and Rh would also be mainly of natural origin and the highest values would come from the proximity of Ag and Pb deposits and mining
2
Silva, Francisco de Assis Tavares Ferreira. "Rede morfológica não-supervisionada-RMNS." Instituto Nacional de Pesquisas Espaciais (INPE), 1998. http://urlib.net/dpi.inpe.br/lise/2003/01.16.09.15.
Анотація:
Este trabalho propõe um novo paradigma de Rede Neural Artificial (RNA): A Rede Morfológica Não-Supervisionada (RMNS), caracterizada por aprendizagem não-supervisionada. Este paradigma pertence a uma classe de redes invariantes a translação e está baseada na Morfologia Matemática (MM), e nos modelos de rede ART de Carpenter e Grossberg, e na rede de Kohonen. Em tempo de ativação, o operador de casamento é implementado utilizando os operadores elementares da MM. Este operador propicia detecção de padrões robusta em relação a ruídos aditivos ou subtrativos, e/ou pequenas rotações dos padrões a serem reconhecidos. No que concerne ao treinamento, a RMNS utiliza uma variação da regra de aprendizagem de Kohonen, e um sistema de reset inspirado no modelo ART proposto por Carpenter e Grossberg.This work proposes a new paradigm of Artificial Neural Net (RNA): The Unsupervised Morphologic Net (RMNS), characterized by unsupervised learning. This paradigm belongs to a class of translation invariant nets and it is based on of Mathematical Morphology (MM), Carpenter and Grossberg's ART, and Kohonen net models. At activation time, the template matching operator is implemented using translation invariant MM elementary operators. This operator propitiates a robust pattern detection with respect to addictive or subtractive noise, and/or for small rotations of the patterns to be recognized. In what it concerns to the training, the RMNS uses a Kohonen learning rule variation and a reset system inspired in the ART model proposed by Carpenter and Grossberg.
3
Souza, Fernando de Oliveira, and Reinaldo Martinez Palhares. "Métodos de análise da robustez de redes neurais artificiais sujeitas a retardo no tempo." Universidade Federal de Minas Gerais, 2005. http://hdl.handle.net/1843/RMPS-6JTHS8.
Анотація:
This work presents sufficient conditions for analysis of asymptotic and exponential stability of a class of artificial neural network (ANN) subject to constant or timevarying delays and polytope-bounded uncertainties.The approaches proposed is the type of delay-dependent and the methodology is based on four points: the selection of slack matrices that express the influence of the Newton-Leibniz condition; the appropriate definition of Lyapunov-Krasovskii functionals; the use of linear matrix inequalities (LMIs) and the use of tools of convex optimization to solve problems described in LMI terms. Several examples are presented that corroborate with the theory presented of analysis of the stability of ANN with time-varying delay.Este trabalho apresenta condições suficientes para análise de estabilidade assintótica e exponencial de uma classe de RNAs (Redes Neurais Artificiais) sujeitas a influência de retardo no tempo (constante ou variante) e/ou sujeitas a incertezas paramétricas do tipo politópicas.A abordagem apresentada é do tipo dependente do retardo, sendo que a metodologia é baseada: no uso de matrizes de relaxação para expressar a influência dos termos da fórmula de Leibniz-Newton; definição apropriada de funcionais do tipo Lyapunov-Krasovskii; desigualdades matriciais lineares (LMIs - do inglês, Linear Matrix Inequalities) e ferramentas de otimização convexa para solucionarproblemas formulados em termos de LMIs. Vários exemplos são apresentados, que corroboram com a teoria apresentada de análise de estabilidade de RNA com retardo no tempo.
4
TROVER, WILLIAM F. "RMPS A REALTIME PARALLEL COMPUTING SYSTEM." International Foundation for Telemetering, 1985. http://hdl.handle.net/10150/615553.
Анотація:
International Telemetering Conference Proceedings / October 28-31, 1985 / Riviera Hotel, Las Vegas, NevadaResearch and Test Activities have a continuing need to cope with more and more channels of data and at continually wider data bandwidths. There is a consensus in the test community that compressed EU and derived parameter data presented in realtime can significantly reduce total test costs because test engineers can make realtime judgements on the validity of a given test point (mode). Classical telemetry preprocessors usually cannot handle these more demanding realtime processing requirements because, when they were designed, it was assumed that raw data was in a single PCM word and only a simple mx+b EU conversion, or simple data compression was required. Present preprocessors typically use special bit slice technology to speed up the realtime process and they’re only one or two bus systems whose processing capacity is typically less than 300k to 400k parameters per second. Furthermore, many cannot handle word concatenation (except for adjacent PCM words) and none can handle complex derived parameters such as thrust, lift, gross weight, center of gravity, stall speed, harmonic analysis, etc. To address these limitations, a massively parallel computer system has been developed based on up to sixty, general purpose, 1MFLOP floating point computers operating in parallel to support realtime processing of any type, at aggregate throughputs up to 1.5 Mwps. This system can merge realtime data from up to eight different asynchronous sources having word rates up to 2.0 Mwps from any source. Up to 32,768 different parameters can be accepted as inputs with an additional 32,768 ID tags available for concatenated and derived parameter identification. A powerful realtime software package permits the user of the computer system to apply any, or many algorithms) to any or an parameters being processed.
5
Bral, Tiago Manuel Barja. "RMq do status lacunar cerebral." Master's thesis, Universidade da Beira Interior, 2011. http://hdl.handle.net/10400.6/918.
Анотація:
Objectivos : Demonstrar pela ressonância magnética, com técnicas de difusão, que os parâmetros nela presentes, de carácter quantitativo, são úteis para relacionar o status lacunar basal com a suposta gliose subcortical frontal e subsequente risco cognitivo.
Materiais e métodos - O estudo, de carácter retrospectivo, abordou um total de 46 casos com idades compreendidas entre 28 e 82 anos, não sendo considerado o sexo. Foram divididos por 3 grupos, consoante a idade e informação clínica fundamentada pela RM convencional: 21 com menos de 60 anos (RM convencional normal e considerado como grupo de controlo); 10 com mais de 60 anos (RM convencional normal); 15 com status lacunar basal (comprovado por RM convencional). Excluiram-se em todos - casos de neoplasma, de infecção intra-craniana, de lesões traumáticas e de desmielinização. Os dados foram recolhidos e fornecidos pelo Centro De Radiologia de Tomar entre Maio de 2009 e Junho de 2010. Foram estudadas áreas cerebrais específicas, nomeadamente, a substância branca do lobo frontal, centros semi-ovais, esplénio caloso e tálamos, tentando encontrar-se uma relação entre o status lacunar basal com a probabilidade de gliose subcortical frontal, através do uso do programa Excel e SPSS, recorrendo à determinação da média do coeficiente aparente de difusão e da isotropia nas diferentes regiões, e por fim correlacionando-as nos grupos com os testes de Kruskal-Wallis, T-Student, Levene e Kolmogorov-Smirnov.
Resultados – Nos 3 grupos estudados:
A análise dos resultados obtidos corrobora estudos anteriormente feitos, nos quais a difusão aumenta na substância branca no envelhecimento. No presente estudo, dado que foi usado um gradiente de difusão maior (b = 1000 s/mm2), confirmou-se com 95% de certeza que o aumento verificado para b = 0 e a diminuição em b = 1000 em função do grupo, é significativa, nomeadamente ao nível dos centros semi-ovais, onde p foi sempre inferior a 0,05, com uma correlação de Pearson sempre com valores negativos. O valor médio da isotropia achado para o grupo com idade inferior a 60 anos, ao nível do esplénio caloso (211,43 +/- 14,06 x 10-6 mm2/seg; sendo o dobro do desvio padrão inferior a 15% da média e p<0,05 quando correlacionado o mesmo parâmetro nos diferentes grupos) pode servir de marcador “normal” quando comparado com os grupos idosos e com status lacunar basal.
Considerações finais - Considera-se que a ressonância magnética quantitativa é importante para o estudo bio-estrutural in vivo do sistema nervoso central, devendo integrar a rotina do risco micro-vascular do idoso, já que, sendo os seus parâmetros de carácter quantitativo, permitem realizar uma medição do cérebro, bem como correlacionar tais parâmetros com a neurobiologia e a clínica.Objectves: Show by MR, with diffusion techniques, that the quantitative parameters included in this method, are useful to relate the lacunar basal status with the supposed frontal subcortical gliosis and subsequent cognitive risk. Materials and methods: this retrospective study, approached 46 cases aged between 28 and 82 years. Sex was not considered. These individuals were sorted by 3 groups, depending on the age and the clinical information provided by the conventional MRI: 21 with less than 60 years and normal conventional MR, also considered as control group; 10 with more than 60 years and normal conventional MR; 15 with lacunar basal status (proved by MRI). This data was collected and provided by the Centro De Radiologia de Tomar, between May of 2009 and June of 2010. Values related to specific cerebral areas were studied, in particular, the frontal lobe’s white matter, semi-oval centers, the splenium callosum and the thalamus. We tried to find a relation between de lacunar basal status and the subcortical frontal gliosis, through the use of Microsoft Excel and SPSS. Through parametric and non parametric methods, were determined the average values for the apparent diffusion coefficient and isotropy, in different regions and finally correlate this results on the different groups. Results: in the 3 groups – the analysis of the obtained results, corroborated previous studies that concluded that the diffusion increases with aging. In the present study, since it was used a higher diffusion gradient (b = 1000 s/mm2 ), it was confirmed with 95% of certain that the increase seen for a b = 0 and the decrease for b = 1000 is statistically significant, particularly on the semi-oval center (p < 0,05), showing the Pearson correlation always negative values. The average value of the isotropy, found for the first (younger) group, for the splenium callosum was 211,43 +/- 14,06 x 10-6 mm2 /sec, and when compared with the other 2 groups, since its p value was less than 0,05, was considered as a “normal marker” for future reference. Conclusions: we find that the quantitative MR is important since it provides an in vivo structural study of the CNS, and should integrate the routine micro-vascular risk of the elderly. Since these parameters are quantitative, they allow “metering” the brain and also correlate its values with the neuro-biology and clinic.
6
Rühl, Maximilian. "Prozessmodellierung von Reaktiv-Multischicht-Systemen (RMS)." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-198818.
Анотація:
The focus of this work is the theoretical and experimentell descreption of so-called Reactive Multilayer Systems (RMS). The RMS consist of at least two mostly metallic materials, which can exothermic response with each other. Using magnetron sputter deposition (MSD) several hundred to thousands alternating layers are produced. The periodic thickness varies between 10-150 nm and the total thickness between 10-100 µ m . The exotermic reaction is effected by an activation energy, e.g. with an electric spark. In this case a phase transition of the RMS materials, which are in a metastable equilibrium, will take place. This released energy in the shape of heat, which actvates the reaction in the neighboring areas. It forms a self-sustaining thermal wave through the RMS foil. In this case the amount of energy is present, that a solder on the RMS or the joining samples or even the material itself can be melted. Therefore the RMS can be used as a heat source for joining two components. The major advantage of this technology is the very low heat input in the bonding components, due to the milliseconds of the reaction. Thus the components are heated only superfical and there is no structural damage. Thus a very low-stress joining is possible.
Furthermore is guaranteed, because of the metallic materials, a very high electrical and thermal conductivity. For the theoretical characterization of the physical and chemical processes within the RMS FEM-Simulations of the absolut temperature and the propagation velocity are preformed. In order to calculate the tmeperature ditribution in the components a new method will presented. It is thus possible to calculate the temperature penetration of the components to determine potential thermal barrier layer-thickness and the meltig time. Thus parameters for the specific joint problem such as period thickness, etc. of the RMS are derived. Modelling the heat transport after joining with RMS it is possible to derive a corralation between the thermal conductivity and shear strength. To quantify the theoretical results and to require certain parameters for the calculations experiments were preformed. The RMS will be investigated experimentally in terms of their enthalpy H , propagation velocity v , nascent temperature, melting time t schmelz , interdiffusion zone w , phase transition and its use as inovative heat source for joining components. The experimental results are compared with the theortical and complet this work.
7
Busfield, Anthony Leigh. "The RMS survey : radio and millimeter studies." Thesis, University of Leeds, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424608.
8
Flynn, Kevin. "THE RMS FRAMEWORK OF ACADEMIC MARKETING RESEARCH PRODUCTIVITY." Cleveland State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=csu1600792969043768.
9
Lee, Hye Joo. "CRT-RMS cross-cultural study with Korean college students." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/39505.
Анотація:
The Conditional Reasoning Test-Relative Motive Strength (CRT-RMS; James, 1998) has shown to be a psychometrically reliable and valid approach for measuring implicit motives and biases in United States and European contexts (James&Rentsch, 2004; Mot, 2003). Extended from previous research, the current study demonstrated the utility of the CRT-RMS with a sample of 186 college students in Korea. The results showed a significant association between the CRT-RMS scores and Korean college students' grade point average. Korean samples also supported the dissociative model in relating with self-report measures. Additionally, mean score differences on implicit and explicit measures of achievement motivation between Korean and US samples provided meaningful information. Implications of cross-culturally valid implicit measures are discussed.
10
Nestler, Franziska. "Automated Parameter Tuning based on RMS Errors for nonequispaced FFTs." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-160989.
Анотація:
In this paper we study the error behavior of the well known fast Fourier transform for nonequispaced data (NFFT) with respect to the L2-norm. We compare the arising errors for different window functions and show that the accuracy of the algorithm can be significantly improved by modifying the shape of the window function. Based on the considered error estimates for different window functions we are able to state an easy and efficient method to tune the involved parameters automatically. The numerical examples show that the optimal parameters depend on the given Fourier coefficients, which are assumed not to be of a random structure or roughly of the same magnitude but rather subject to a certain decrease.
11
Kalikavunkal, Priya. "Development of EMT Simulation Model to Use RMS Control Model." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187641.
Анотація:
Evolution is continuous and as a result, developments in semiconductors are endless. This led to the Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) converter termed as HVDC light. HVDC light is quite preferable because of its pros in the technology used as well as the application it is used for. For instance, the VSC technology allows independent control of the real and reactive power and has reduced short circuit current. HVDC light are used in applications such as wind power integration, offshore power supply, underground transmission and in enhancing connected AC networks. It is vital that the control system in HVDC ensures the stability of the system and the power flow between the AC and DC systems. This is done by determining the instant at which the IGBT’s are fired in the converterstations (at both rectifier and inverter). ABB has developed RMS (using sequence components and phasors) control system based on the actual control system in a fully graphical programming language tool known as Hidraw. This RMS control has been implemented in other simulation software such as Netomac, Power factory and PSS/E. the RMS control Model is named by ABB as Common Component. The thesis aims at implementing an RMS control Model in an EMT (Electro Magnetic Transient Tools) simulation, carried out at the department of High Voltage Direct Current at ABB, Ludvika. The RMS control Model is a developed power system control and protection model which uses a simplified representation of areal time control system. When implemented, the RMS control model results are then compared with the detailed control representation implemented in PSCAD. The thesis is a result of ABB’s innovative ideas in implementing the RMS control model called Common Component into various other simulation tools of different compatibility that enables the control system to be exercised and exploited to its fullest. It also gives the prospect in developing the control system to ensure the electrical system is more efficient. The control system implemented in the EMT tool will enable developing better EMT models. The Common Component is developed but has not been implemented in PSCAD. There has been no reference to such work being carried out. Hence no reference has been referred to specific to the main work. Currently the EMT tool uses a detailed representation that shares the same code as the actual control system, MACHTM (Modular Advanced Control for HVDC) [9] control system. The implementation of Common Component in PSCAD requires an interface between them to pass the necessary parameters between them. The Common Component is developed in C++ and FORTRAN while PSCAD uses FORTRAN and hence proper interface in C++ is developed. Thereafter the electrical model representing one HVDC station (rectifier) is modelled in PSCAD. Four electrical models are implemented, described and evaluated to achieve proper control in the electrical system. The electrical models are operated in STATCOM (Static synchronous compensator) mode, where either reactive power or AC Voltage Control can be used. The model is run in reactive power control mode and the system is studied along with the control system for the required control. Model 4 gives more accurate results compared with the other models. There is better reactive power control in monitoring the PCC (point of common Coupling) and converter bus of the HVDC system. Since the Common Component is a simplified representation of the MACH [9] control system, it can behanded over to third parties without IP concerns. A simplified representation also gives the advantage of reduced simulation time. The electrical model can be further extended for both the converter stations and assessed for other control modes such as real power, dc voltage control and ac voltage control. Also the model needs to be further investigated on its behavior when subjected to faults.Utveckling är kontinuerlig och det betyder att även utvecklingen av halvledare är oändlig. Det har lett till att en Voltage Source Converter (VSC) baserad High Voltage Direct Current (HVDC) omvandlare som kallas HVDC Light har skapats. HVDC light är att föredra på grund av dess fördelar i den teknik som används samt applikationerna den används för. Till exempel så tillåter VSC tekniken oberoende kontroll av den verkliga och reaktiva effekten och har minskat kortslutningsströmen. HVDC Light används i applikationer så som vindkraftintegration, offshore strömförsörjning, markkabelöverföring och för att förbättra anslutna växelströmsnät. Styrsystemet i HVDC säkerställer stabiliteten i systemet och kraftflödet mellan AC- och DC-system. Detta görs genom att bestämma det ögonblick då IGBT tänds i strömriktarstationerna (både likriktare och växelriktare). ABB har utvecklat ett RMS (med sekvenskomponenter och fasvektorer) styrsystem baserat på det faktiska styrsystemet i ett helt grafiskt programmeringsverktyg som kallas Hidraw. Denna RMS-kontroll har implementerats i andra simuleringsprogram såsom Netomac, Powerfactory och PSS/E. ABB kallar sin RMS-kontroll för Common Component. Avhandlingen syftar till att implementera en RMS-styrsystemsmodell i en EMT (Electro Magnetic Transient Tools) simulering som utförs vid institutionen för högspänd likström vid ABB, Ludvika. RMS-styrsystemsmodellen är ett befintligt utvecklat styr- och skyddssystem som använder en förenklad representation av det verkliga styrsystemet. När det implementerats jämförs resultaten från RMS-modelen med detaljerade styrsystemsrepresentationer som genomförts i PSCAD. Avhandlingen är ett resultat av ABBs innovativa idéer att implementera Common Component i olika simuleringsverktyg, trots deras olikheter, vilket gör det möjligt att prova och utvärdera styrsystemet maximalt. Det ger också utvecklingspotential för effektiviteten i kraftnäten. Att implementera styrsystemet i ett EMT-verktyg ger även bättre kunskap om att utveckla bättre EMT modeller. Common Component är redan utvecklad men har inte blivit implementerad i PSCAD. Det finns inga referenser till att något sådant arbete har utförts. Därför har inga sådana referenser tagits upp i rapporten. För närvarande så använder EMT verktyget en detaljerad styrsystemsrepresentation som delar samma kodbas som det verkliga styrsystemet, MACHTM (Modular Advanced Control for HVDC) [9]. Implemeteringen av Common Component i PSCAD kräver att gränssnitt mellan de båda kan överföra nödvändiga parametrar. Common Component är utvecklat i C++ och FORTRAN, PSCAD använder FORTRAN. För att kommunikationen mellan de två verktygen ska fungera har ett gränssnitt utvecklats i C++. Den elektriska modell som representerar en HVDC station (likriktaren) har tagits fram i PSCAD. Totalt har fyra olika elektriska modeller implementerats, beskrivits och utvärderats för att hitta en optimal representation. Implemeteringen av Common Component i PSCAD kräver att gränssnitt mellan de båda kan överföra nödvändiga parametrar. Common Component är utvecklat i C++ och FORTRAN, PSCAD använder FORTRAN. För att kommunikationen mellan de två verktygen ska fungera har ett gränssnitt utvecklats i C++. Den elektriska modell som representerar en HVDC station (likriktaren) har tagits fram i PSCAD. Totalt har fyra olika elektriska modeller implementerats, beskrivits och utvärderats för att hitta en optimal representation.
12
Dale, Katherine R. "Measuring Representativeness: The Creation and Testing of the Representativeness of Mediated Characters Scale (RMCS)." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1433851819.
13
Davidge, Kelly S. "Effects of Carbon Monoxide-releasing molecules (CO-RMs) on Escherichia coli." Thesis, University of Sheffield, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.515442.
14
Sawle, Philip John. "Biochemical properties and bioactivities of carbon monoxide-releasing molecules (CO-RMs)." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1445046/.
Анотація:
Carbon monoxide (CO), synonymous of the "silent killer", is rapidly emerging as an important and versatile mediator of physiological processes. The study of CO has been hampered by the lack of a means to simulate its release biologically. Current means to replicate the effects of CO include, most notably, the use of CO gas and upregulation of haem oxygenase-1 (HO-1) to generate endogenous CO. Both are limited in their approach and offer only a partial solution. The recent discovery that certain transition metal carbonyls function as CO-releasing molecules (CO-RMs) in biological systems highlighted the potential of exploiting this and similar classes of compounds as a stratagem to deliver CO for research and therapeutic purposes. Initially a large portfolio of CO-RMs was investigated to determine their CO releasing capability. This thesis examines a number of aspects related to the characterisation of a core group of CO-RMs including: a) CORM-3, the prototypic water soluble transition metal carbonyl b) CORM-A1, a water soluble CO-RM without a metal centre c) CORM-319, an iron based water soluble CO-RM and d) CORM-311, an ethanol soluble iron centred CO-RM. Specifically, the study will examine CO-RMs for their ability to: i) release CO ii) suppress LPS-induced nitrite production iii) promote toxicity iv) induce haem oxygenase (HO) activity and HO-1 expression and v) modulate inducible nitric oxide synthase (iNOS) expression. These different aspects of CO-RM characterisation were addressed using biochemical, molecular biology and cell culture techniques. Further work was also carried out determining certain chemical aspects of each CO-RM including the decomposition rate and pH/temperature stability. The study into the CO release of the new CO-RMs emphasizes the versatile potential of the metal carbonyl complexes and related compounds. This research on CO-RMs will help lay the foundations for a novel therapeutic agent based on the delivery of safe and controlled quantities of CO.
15
Chalk, Christopher David. "Novel IC test methodologies : evaluation of AC RMS supply current monitoring." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244997.
16
CARIJÉ, Anderson Andrade. "Cidades Metropolitanas: A cidade de Lauro de Freitas na RMS/BA." Universidade Federal da Bahia, Instituto de Geociências, 2007. http://repositorio.ufba.br/ri/handle/ri/19797.
Анотація:
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O objetivo central deste trabalho é analisar Lauro de Freitas como Cidade Metropolitana, suas relações com a Região Metropolitana de Salvador e sua especialização funcional, priorizando o aprofundamento na qualidade de vida de seus moradores. Para alcançar tal objetivo, resgatamos aspectos ligados à constituição do modelo de Região Metropolitana no Brasil, assim como o acompanhamento do atual modelo. Sob essa perspectiva, realizamos um aprofundamento sobre a qualidade de vida das Cidades Nordestinas com melhores índices de IDH. Analisamos, também, a Região Metropolitana de Salvador sob aspectos ligados à qualidade de vida dos seus moradores, assim como sua arrecadação tributária, renda municipal e emprego. No decorrer do trabalho, encontramos uma Cidade Metropolitana em pleno processo de urbanização, assim como qualquer outra cidade do país. Contudo, evidenciamos a constituição de uma especialização funcional do seu espaço. Essa especialização funcional tem incrementado, operativamente, três tipos de “negócios” específicos sobre seu espaço: condomínios horizontais voltados para as classes média e alta; comércio e serviços voltados à construção civil e jardinagem; e, por fim, o desenvolvimento de instituições de ensino superior. Essa especialização funcional vem corroborando para o desenvolvimento sócio-espacial da cidade e acreditamos que, se bem instrumentalizada, terá uma importante contribuição no desenvolvimento da cidade metropolitana de Lauro de Freitas.
ABSTRACT The main object of this work is to analyze Lauro de Freitas as a Metropolitan City, its relation with the metropolitan region of Salvador and its functional specialization, aiming the life quality of its residents. To reach this objective, rescuing aspects of a Metropolitan Region’s model constitution in Brazil, such as following the current model. According to it, it was performed deepening about life quality of northern cities with the best indices of IDH. It was also analyzed the metropolitan city of Salvador about aspects of the quality life of the residents, such as collection tax, municipal income and employment. During this work a Metropolitan City was found in a urbanization process as any other city of the country, however, it was evidenced a constitution of a functional specialization of this space. This functional specialization has developed three types of specific “business” about its space, such as: horizontal properties to the high and medium society, - commercial service, civil construction and gardening – and finally, the development of college institution. This functional specialization is increasing the city socio-spacial development, and we believe that it will have an import contribution to the development of the metropolitan city Lauro de Freitas.
17
Whitley, Michael Aaron. "Using statistical learning to predict survival of passengers on the RMS Titanic." Kansas State University, 2015. http://hdl.handle.net/2097/20541.
Анотація:
Master of ScienceStatistics
Christopher Vahl
When exploring data, predictive analytics techniques have proven to be effective. In this report, the efficiency of several predictive analytics methods are explored. During the time of this study, Kaggle.com, a data science competition website, had the predictive modeling competition, "Titanic: Machine Learning from Disaster" available. This competition posed a classification problem to build a predictive model to predict the survival of passengers on the RMS Titanic. The focus of our approach was on applying a traditional classification and regression tree algorithm. The algorithm is greedy and can over fit the training data, which consequently can yield non-optimal prediction accuracy. In efforts to correct such issues with using the classification and regression tree algorithm, we have implemented cost complexity pruning and ensemble methods such as bagging and random forests. However, no improvement was observed here which may be an artifact associated with the Titanic data and may not be representative of those methods’ performances. The decision trees and prediction accuracy of each method are presented and compared. Results indicate that the predictors sex/title, fare price, age, and passenger class are the most important variables in predicting survival of the passengers.
18
Britto, Elissandra Alves de. "A dinâmica do novo mundo rural e o seu reflexo na RMS." reponame:Repositório Institucional da UFBA, 2004. http://www.repositorio.ufba.br/ri/handle/ri/8891.
Анотація:
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A dinâmica do novo mundo rural e o seu reflexo na RMS? (Região Metropolitana de Salvador) é um trabalho que tem como propósito analisar o papel da agricultura familiar e a contribuição da reforma agrária para o processo de desenvolvimento rural sustentável no mundo rural baiano. Essas abordagens são elucidadas na perspectiva de que os centros urbanos baianos possam se tornar vítimas do processo de esvaziamento da zona rural. Nesse aspecto, ao longo do trabalho é dado enfoque sobre os impactos sociais decorrentes do desemprego da mão-de-obra agrícola baiana e do conseqüente êxodo rural. O objetivo ao elaborá-lo foi verificar se o desenvolvimento rural incentiva as pessoas a permanecerem no campo, possibilitando a redução do fluxo de migrantes que muitas vezes vão habitar as periferias e as favelas. Observa-se nas pesquisas realizadas por Machado, Schmitz e Paula que as ocupações não-agrícolas têm-se tornado cada vez mais presentes na zona rural. Ao mostrar por meio de estudos reais que a composição da renda rural vem mudando consideravelmente, busca-se ressaltar a importância dessas atividades para a redução do fluxo migratório que vêem para as grandes cidades. Esse processo dá fôlego aos centros urbanos para que resolvam ou pelo menos amenizem o problema do subemprego acumulado. Para tanto, tem-se como objeto de estudo a estrutura e a formação de renda de famílias pluriativas, afim de revelar os principais tipos de atividades que empregam e/ ou ocupam as diversas unidades de trabalho familiar (UTf), bem como suas respectivas rendas. De posse dessas informações, utiliza-se a metodologia análise-diagnóstico de sistemas agrários, que vem sendo adotada desde 1995 pelo Projeto de Cooperação Técnica firmado entre o Instituto Nacional de Colonização e Reforma Agrária e a Organização das Nações Unidas para Agricultura e Alimentação. Ela consiste num instrumento de apoio dos profissionais que atuam na elaboração de diagnósticos para diferentes microrregiões de um país. Através destes, identificam-se os principais problemas que as famílias rurais enfrentam, e se estabelecem diretrizes para o desenvolvimento rural local mais coerentes com a necessidade de cada região.
Salvador
19
Pomar, Kenri. "Visualization and Quantification of Karst and Fractures in Cretaceous Carbonates, Cassis, France." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_theses/76.
Анотація:
Fractures in carbonate strata are often associated with dissolution features such as karst cavities along the fracture plane. Integration of full resolution 3D GPR data and outcrop observation allows the visualization and quantification of fractures and karst cavites in three dimensions. Three 3D GPR cubes were acquired in the Solvay quarry, Provence region, SE France. The quarry exposes an intensly fractured and karstified shallow-water Barremian carbonates with matrix porosity less than 1.8%. The quarry walls provide the 2D information of the fractures (location, type, orientation, dip, length, aperture, spacing and stratigraphic position) and the karst (location, size, shape, stratigraphic position and relationship with fractures), that were documented using 1D scan line measurement. Several deformation features are observed in the quarry, dominated by meter-scale joints and tension gashes, and also minor faults, burial and tectonic-related stylolites. Three major fracture orientations (E-W, NW-SE and N-S) were found in the quarry with a non-uniform distribution influenced by structural position relative to major structural features (eg: large fractures (>10m) and faults). Interpretation of 3D GPR data reveals one major fracture orientation (NE-SW) that was not observed in the outcrop because it is oriented parallel with the quarry wall. Besides fractures, karst were also documented in outcrop as well as in 3D GPR data. Combination between 3D GPR and outcrop observation show that in the Solvay quarry karst occur along fracture plane and preferentially at fracture intersections. The karst are decimeter to meter-size karst which are below the resolution of 3D seismic reflection. Quantification of karst in the quarry show that karst size-frequency distribution follows power-law distribution, where small karst is more common and large karst is less common. The volume of karst in the quarry is up to 3.8% of the total rock volume. The power-law scaling relationship and the quantification of the sub-seismic karst volume will help predicting karst arrays in wide range of sizes in subsurface reservoirs, where visualization of karst is restricted to the resolution of 3D seismic data.
20
Lai, Jingou, and Che Liu. "Use SNA instead of VNA to characterize indoor channel : implementing and rms theory." Thesis, Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-7780.
Анотація:
In this report we focus on the use of an economical way on how Scalar Network Analyzer (SNA) works instead of Vector Network Analyzer (VNA) to estimate the phase angle of signals in indoor channel. This is detailed in RMS delay theory and simulation section, experimental is designed in the according Experiment Design section, where we also state the required measurements known from the math part. In our work, data are recorded both from two different channel characteristics. Method of achieving amplitude is by using deconvolution theory. The condition of applying Hilbert transform are highlighted as impulse response h(t) in time domain should be causal. The recorded data amplitude is computed by Hilbert Transform, and therefore validate the condition using Inverse Discrete Fourier Transform (IDFT) back to time domain to achieve h(t). Power delay profile P(t) is therefore presented afterwards. In paper calculations of rms delay τrms of the channel which is the most important variable are also performed, the results calculated from different windowing truncation and the LOS and NLOS characteristics are compared in discussion and conclusion section, it also includes Opinions of window functions chosen for the phase estimation.
21
Megat, Khalid Puteri Zarina binti. "A linguistic analysis of three genres associated with the ship RMS Queen Elizabeth." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/3999/.
Анотація:
This thesis is designed to explore three selected genres which are associated with a Scottish-built ship, RMS Queen Elizabeth, and her launch event in 1938. The main focus of this research is an exploration of how writers construct their texts by creating an interpersonal relationship with their readership in order to fulfil their communicative purposes. Specifically, it examines the generic structures and the lexico-grammar of the texts representing these genres from various theoretical perspectives. The present study analyses a set of business letters, newspaper articles and a promotional brochure which revolve around the launch event of the historic liner. The texts representing these genres are examined in terms of their generic structures using Swales’ move analysis model (1990; 2004) and Hasan’s generic structure potential framework (1985). In addition, a lexico-grammatical analysis of these texts focuses on the use of modal verbs as modality markers, analysed using three distinctive frameworks i.e. Brown and Levinson’s (1987) Politeness Theory, Martin and White’s (1998) Appraisal Framework, and Halliday’s (1994) modality system as markers of authorial commitment and/or obligation in propositions. The differing foci on the use of the modal verbs in the study are motivated by the aim of showing how these lexical items function in different genres. As a final analysis, these modal verbs in the respective genres are examined for their lexical properties using Sinclair’s (1996) and Stubbs’ (2002) Models of Extended Lexical Units. The analysis of the lexical properties of the modal verbs suggests that these lexical items possess certain patterns particularly in terms of colligation, semantic preference, and discourse prosody. The generic structures of the texts in the study are also found to serve the communicative purposes of the texts. It is also found that modal verbs are deployed by the writers to serve various functions in the three genres. In conclusion, all these findings indicate that despite being bound by a single event, these genres were clearly produced to address the communicative purposes as agreed upon by members of the individual communities of practice during that period.
22
Venkatasubramanian, Radhika. "High frequency continuous-time circuits and built-in-self-test using CMOS RMS detector." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4746.
Анотація:
The expanding wireless market has resulted in complex integrated transceivers
that involve RF, analog and mixed-signal circuits, resulting in expensive and complicated
testing. The most important challenges that test engineering faces today are (1) providing
a fast and accurate fault-diagnosis and performance characterization so as to accelerate
the time-to-market and (2) providing an inexpensive test strategy that can be integrated
with the design so as to aid the high-volume manufacturing process. The first part of the
research focuses on the design of an RMS detector for built-in-self-test (BIST) of an RF
integrated transceiver that can directly provide information at various test points in the
design. A cascode low noise amplifier (LNA) has been chosen as the device under test
(DUT). A compact (< 0.031 mm2) RF RMS detector with negligible input capacitance (<
13 fF) has been implemented in 0.35 õm CMOS technology along with the DUT.
Experimental results are currently being assimilated and compared with the simulation
results. Frequency limitations were encountered during the testing process due to
unexpected increase in the value of the N-well resistors. All other problems faced during
the testing, as well as the results obtained so far, are presented in this thesis. In the second part of the research, the use of the RMS detector for BIST has been
extended to a continuous-time high-frequency boost-filter. The proposed HF RMS
detector has been implemented along with a 24 dB 350 MHz boost filter as the DUT on
0.35 õm CMOS technology. The HF RMS detector occupies 0.07 mm2 and has an input
capacitance of 7 fF. The HF RMS detector has a dynamic range greater than 24 dB
starting from -38 dBm of input power. The bandwidth and boost of the filter have been
accurately estimated in simulation using the HF RMS detector. The sensitivity of an
intermediate band pass node of the filter has also been monitored to predict the filter's
sensitivity to Q errors.
The final part of the research describes the design of a single-ended to differential
converter for use in a broadband transceiver operating from 50-850 MHz. This circuit is
used as the second stage in the transceiver after the LNA. The design has been simulated
on a 0.35 um CMOS process and has a power consumption of 13.5 mW and less than 8
dB of noise figure over the entire band. It is capable of driving a 500fF load with less
than 1dB of gain ripple over the entire band (50-850 MHz).
23
Jiang, Claudio. "Approccio integrato per la pianificazione degli interventi manutentivi e della riconfigurazione nei sistemi RMS." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Анотація:
I sistemi RMS (Reconfigurable Manufacturing System), progettati con caratteristiche di modularità e flessibilità, nascono in risposta alle necessità del mercato moderno. Tuttavia, la letteratura non ha ancora affrontato organicamente la problematica della coordinazione tra politica manutentiva e attività di riconfigurazione che questi sistemi richiedono.
L’elaborato dopo aver descritto brevemente l’evoluzione dei sistemi di produzione e le caratteristiche e le tecnologie abilitanti dei sistemi RMS affronta il problema della manutenzione all’interno di sistemi di produzione complessi. L’obbiettivo è la presentazione di un modello manutentivo preventivo e opportunistico ottimizzato specificatamente per sistemi produttivi riconfigurabili, che tenga conto della contemporanea usura di macchine e moduli e della necessità di riconfigurazione del sistema.
L’euristica presentata è stata implementata mediante il linguaggio di programmazione Java per la parte algoritmica e di elaborazione dati e su Excel per la parte relativa alla lettura dei dati in input e output, al fine di dimostrare l’adattabilità dell’euristica e la sua concreta applicabilità a un sistema produttivo. Il valore dei parametri e il costo totale della politica manutentiva sono stimati e ottimizzati mediante un processo di simulazione. L’esempio numerico proposto mostra come l’euristica presentata, se implementata, possa rispondere alle necessità manutentive di un sistema RMS garantendo costi totali minori rispetto a un modello di manutenzione preventiva age-based e rispetto a manutenzioni a rottura.
24
Hammad, Jehad H. A. "The effects of water-soluble carbon monoxide-releasing molecules (CO-RMs) on vascular tone." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1444729/.
Анотація:
Carbon monoxide (CO) is an important signalling messenger in mammalian cells as it participates in a variety of physiological processes including vessel tone regulation. Dr. Motterlini's group has discovered a new class of molecules which have the ability to carry and deliver CO to physiological systems. These molecules were termed CO-releasing molecules (CO-RMs) and they are an excellent tool to investigate the biological role of CO in the vasculature and other systems. The major focus of the research presented in this report was to evaluate the effects of different water soluble CO-RMs on vascular tone. For this purpose, an aortic ring preparation model was used to assess the vasodilatory properties of CORM-3 and CORM-A1, the first two water-soluble CO-RMs to be identified, and the cellular targets involved in this effect. CORM-3 is a transition metal carbonyl that liberates CO very rapidly (1=1-5 min) in physiological solutions, whereas CORM-A1 is a boron-containing carbonate with a much slower rate of CO release (tvi=21 min at pH=7.4). In the current studies CORM-3 induced a rapid endothelium-dependent vasorelaxation, whereas CORM-A1 elicited gradual endothelium-independent vasorelaxation. The inactive form of both CO-RMs, in which CO has been deliberately depleted, did not exert vasorelaxation indicating a direct involvement of CO liberated from the compounds in the observed vasorelaxation. The vasorelaxation induced by both molecules was enhanced and attenuated by an activator and inhibitor of guanylate cyclase (sGC), respectively. CORM-3-mediated vasorelaxation was completely abolished by non-selective inhibitors of potassium channels (K+), and partially attenuated by inhibition of ATP dependant (Katp) potassium channels. In contrast, CORM-A1 -mediated vasorelaxation was partially attenuated by non selective inhibition of K+ and by inhibition of voltage dependent (Ky) potassium channels. Even at concentrations higher than that used to induce significant vasorelaxation, both CO-RMs had no noticeable effect on the viability of rat aortic smooth muscle cells (A7r5) in vitro. CORM-319, a new water soluble iron containing CO-RM, also induced significant vasorelaxation and was relatively safe to cultured SMCs compared to other non-water soluble iron containing CO-RMs that were extremely toxic. In summary, our data reveal that the CO-RMs examined in this project are promising CO carriers that could be further modified for optimal therapeutic applications. In addition, our data demonstrate the significant effect imposed by the chemical structure and kinetics of CO release on the pharmacological activity of various CO-RMs.
25
Jesus, Regina Jacqueline Brandão de. "Microcrédito na Região Metropolitana de Salvador (RMS): análise no período de 2010 a 2014." Universidade Catolica de Salvador, 2018. http://ri.ucsal.br:8080/jspui/handle/prefix/406.
Анотація:
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Esta tese tem por objetivo avaliar o microcrédito na Região Metropolitana de Salvador (RMS) no período compreendido entre 2010 e 2014. Este trabalho apresenta uma investigação a partir de dados coletados do Instituto Brasileiro de Geografia e Estatística (IBGE), Instituto de Pesquisa Econômica Aplicada (IPEA), Banco do Nordeste (BNB), Banco Central (BACEN), Serviço Brasileiro de Apoio às Micro e Pequenas Empresas (SEBRAE), dentre outros. Através da análise de dados, mostrou-se que tanto a população quanto os empreendimentos da região metropolitana buscam cada vez mais pelo microcrédito e, que os microempreendimentos individuais, solidários ou não, são vistos como a saída para geração e complementação da renda familiar. A pesquisa realizada também revela que o microcrédito é uma atividade importante na economia baiana e brasileira, especialmente se comparada a outros países da América Latina. Mostra ainda que a ampliação da oferta do microcrédito é parte do modelo que tem por objetivo a gestão da pobreza e seus efeitos na sociedade, e que a oferta de serviços de microfinanças cresce fundamentada nas orientações caracterizadas por procedimentos de rentabilidade tipicamente financeiros. Os resultados revelam que, entre 2010 e 2014, houve desenvolvimento social na Região Metropolitana de Salvador, porém não foi possível associar as melhorias aos programas de microcrédito ofertados na região.
This thesis aims to evaluate microcredit in the Metropolitan Region of Salvador (RMS) in the period between 2010 and 2014. This paper presents an investigation based on data collected from the Brazilian Institute of Geography and Statistics (IBGE), Institute of Applied Economic Research (IPEA), Banco do Nordeste (BNB), Banco Central (BACEN), Brazilian Service to Support Micro and Small Enterprises (SEBRAE), among others. Through the analysis of data, it was shown that both the population and the enterprises of the metropolitan region are increasingly seeking microcredit and that individual microenterprises are seen as the output for generation and complementation of family income. The research also reveals that microcredit is an important activity in the Bahia and Brazilian economy, especially when compared to other Latin American countries. It also shows that the expansion of the microcredit supply is part of the model that has the objective of managing poverty and its effects on society, and that the supply of microfinance services grows based on guidelines characterized by typically financial profitability procedures. The results show that, between 2010 and 2014, there was social development in the Metropolitan Region of Salvador, but it was not possible to associate the improvements to the microcredit programs offered in the region.
26
Müller, Dirk, and Matthias Werner. "Improved Heuristics for Partitioned Multiprocessor Scheduling Based on Rate-Monotonic Small-Tasks." Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-80762.
Анотація:
Partitioned preemptive EDF scheduling is very similar to bin packing, but there is a subtle difference. Estimating the probability of schedulability under a given total utilization has been studied empirically before. Here, we show an approach for closed-form formulae for the problem, starting with n = 3 tasks on m = 2 processors.
27
Erlandsson, Jonas. "Evaluation of performance of a smartphone application for measuring bike paths’ condition." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-95588.
Анотація:
There are several methods to measure surface evenness for car roads, but almost none for bike paths. Accordingly, VTI (the Swedish National Road and Transport Research Institute) have created a smartphone application which uses the accelerometers in the phone to measure the vibration from the road. This report’s aim is to analyze the data collected using this application, investigate if the data is repeatable, to find factors that are important for evenness and perform classification of bike paths as even or wiggly. Two main methods were used, Gaussian process and wavelets. Gaussian process was used to classify bike paths and wavelets to investigate the repeatability and see how many trips are needed to get a consistent result. The results show that the two different smartphones gave quite different results; one smartphone indicated almost twice as high RMS values (measure of vibration) than the other. The GPS positions of smartphones were quite good, except under a tunnel and close to high buildings. Some short section of the road gave very high or very low RMS values, but the general standard of all investigated bike paths were too even to detect any significant differences between the paths. The results show that there’s some unexplained variance in the turns, but the effect of the turns hasn’t been tested. The wavelets analysis show that around 15 trips were needed to get a consistent result. The report contains a description of a designed experiment that will continue this project. This new data will be collected in a more carefully to make a better separation between good and bad cycle routes by the RMS value.Uppdragsgivare: VTI (Anna Niska och Leif Sjögren)
28
Dubbert, Dale F. "The RMS phase error of a phase-locked loop FM demodulator for standard NTSC video." Thesis, Kansas State University, 1986. http://hdl.handle.net/2097/9911.
29
Sandouka, Ashraf. "Carbon monoxide-releasing molecules (CO-RMs) : effects on physiology and ischaemia-reperfusion injury in the kidney." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1445042/.
Анотація:
Background: Although high concentrations of carbon monoxide (CO) are unquestionably toxic, emerging evidence reveals that CO at low concentrations plays a significant role in vasorelaxation, blockade of apoptotic pathways, suppression of inflammation and protection against ischaemia-reperfusion (I-R) injury. Our group has recently identified a series of compounds (CO-releasing molecules or CO-RMs) which exert important pharmacological activities by carrying and delivering CO to biological systems.;Aims: The present study was designed to evaluate the influence of CO released from CO-RMs on mitochondrial respiration and its consequences on renal haemodynamic, biochemical, and physiological parameters as well as to examine the possible beneficial effects of CO-RMs against I-R injury.;Methods: Parallel experiments were conducted using: 1) the isolated renal cortical rat mitochondria for evaluation of oxygen consumption, hydrogen peroxide production, and lipid peroxidation. 2) the ex vivo isolated perfused rabbit kidney (IPRK) model to measure the physiological and biochemical parameters and mitochondrial respiration for freshly harvested kidneys and kidneys exposed to ischaemic injury, and 3) an in vitro model of renal proximal tubular epithelial (LLC-PKi) cells to assess membrane integrity and metabolic activity.;Results: The major findings of this study indicate that CO modulates mitochondrial respiratory activity in isolated rat mitochondria. In IPRK model, CO reduces tubular reabsorption and increases urine and perfusion flow rate and glomerular filtration rate of freshly isolated kidneys. However, in IPRK model, kidneys flushed with a cold preservation solution supplemented with CO-RMs and stored at 4 C for 24 or 48 hr displayed at reperfusion a significant protective vasodilatory effect, improved renal function and mitochondrial respiration compared to control kidneys flushed with cold solution alone. Additionally, CO released from CO-RMs protects against preservation injury using the in vitro model of LLC-PKi cells. In contrast, in a warm I-R model using the IPRK circuit, CO was only beneficial by increasing the perfusate flow rate at reperfusion.;Conclusion: the results emphasize that CO liberated from CO-RMs has a protective vasodilatory effect, improves renal function and increases mitochondrial respiration after cold ischaemia and reperfusion. These findings suggest that CO-RMs could be used therapeutically in preservation solutions as an efficacious strategy to prevent the injury sustained by organs during cold storage prior to transplantation.
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Souza, Laumar Neves de. "Dinâmica econômica e seus impactos nas estratégias de inserção feminina no mercado de trabalho da RMS." Programa de Pós- Graduação em Ciências Sociais da UFBA, 2007. http://www.repositorio.ufba.br/ri/handle/ri/11352.
Анотація:
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O objetivo desta tese é compreender como as mulheres residentes na Região Metropolitana de Salvador (RMS) responderam ao fenomenal aumento da precarização do mercado de trabalho local, ocorrido entre os anos de 1997 e 2003. A tese que se defende aqui é a de que as mudanças ocorridas na economia brasileira, e em particular na economia baiana, na passagem dos anos 1990 para os 2000, impactaram de modo desigual não apenas o modo e as características da inserção de homens e mulheres no mercado de trabalho da RMS situação essa que implicou numa redução das assimetrias estruturais entre gêneros, previamente existentes , mas trouxeram diferenciações de inserção nesse mercado importantes também entre as mulheres metropolitanas. Sustenta-se, adicionalmente, a idéia de que muito provavelmente foram as mulheres na condição de filhas aquelas que mais se lançaram às fronteiras do mercado de trabalho metropolitano, uma vez que era, precisamente, esse grupo de mulheres o que menos pressionava o referido mercado de trabalho no exato momento em que o mencionado processo precarização deixa, por assim dizer, de ser considerado grave e começa a assumir um caráter absolutamente alarmante. Sublinhados esses pontos, cabe informar que o presente estudo se baliza nas informações produzidas pela Pesquisa de Emprego e Desemprego (PED) para os anos de 1997 e 2003, o que só foi possível graças ao fato do volume de informações levantadas nesses dois momentos permitir a realização de um amplo leque de investigações sobre diversos aspectos do mercado de trabalho regional, especialmente sobre seus componentes estruturais. Diante dessa característica da base de dados da PED, procurase apontar quais respostas as mulheres metropolitanas foram capazes de oferecer a partir de três aspectos diferentes. O primeiro se refere a sua situação do ponto de vista da participação no mercado de trabalho da RMS. Aí se trabalha com informações referentes às taxas de participação e desemprego. O segundo diz respeito às condições e ao tipo de trabalho oferecido às mulheres em tal mercado. Nesse ponto, o estudo se volta para a discussão das questões referentes à distribuição setorial do emprego, bem como a distribuição da ocupação por posição na ocupação. O terceiro, e último, concerne à problemática da mulher que se relaciona aos diferenciais de rendimentos.
Salvador
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Julien, Pierre. "Rhabdomyosarcome retroperitoneal de l'enfant : a propos d'un cas de rms du muscle psoas avec carcinomatose meningee." Nice, 1991. http://www.theses.fr/1991NICE6560.
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Sopko, Richard. "Univerzální mobilní komunikační platforma pracující s technologií bluetooth." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218185.
Анотація:
This master’s thesis is focused on field of communication technologies in mobile devices in personal WPAN type wireless networks. Work consists of three basic parts. First part provides overview of personal WPAN wireless networks and is specialized on Bluetooth technologies and its opportunities of communication between mobile devices. Second part deals with an opportunity of using programming language Java 2 Micro Edition in work with Bluetooth technology. Key point of this work is third part which includes scheme of conception of a communication platform and creating of application designed for mobile phones. Created application enables communication by means of changing files and written conversation of two or more people in real time by Bluetooth connection.
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Rühl, Maximilian [Verfasser], Stefan [Akademischer Betreuer] Braun, Eckhardt [Gutachter] Beyer, and Andrés-Fabián [Gutachter] Lasagni. "Prozessmodellierung von Reaktiv-Multischicht-Systemen (RMS) / Maximilian Rühl. Betreuer: Stefan Braun. Gutachter: Eckhardt Beyer ; Andrés-Fabián Lasagni." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://d-nb.info/1102086126/34.
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Schubert, Brad. "Development of a MR Hydraulic Bushing for Automotive Applications." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/790.
Анотація:
The purpose of this work is to design a semi-active magnetorheological (MR) hydraulic bushing. The semi-active bushing is intended to be used to isolate a cylinder deactivating engine. Cylinder deactivation causes high transient torsional loading in addition to changing the magnitude and mode of engine vibrations requiring an adaptive or controllable isolator. Practical and simple semi-active control strategies are inspired by investigating the optimization of linear and slightly cubic nonlinear single degree of freedom isolators. Experimental verification of the optimization technique, which minimizes the root mean square (RMS) of engine acceleration frequency response and RMS of the force transmitted frequency response, shows that this method can be implemented on real linear systems to isolate the engine from harmonic inputs. This optimization technique is also applied to tune selected model parameters of existing two degree of freedom hydraulic bushings.
This thesis also details the development of a MR hydraulic bushing. The MR bushing design retrofits an existing bushing with a pressure driven flow mode valve on the inertia track. A new efficient valve design is selected and developed for the application. The MR hydraulic bushing is designed, mathematically modeled, and numerically simulated. The simulation results show that the MR bushing tends to increase the low frequency dynamic stiffness magnitude while simultaneously decreasing the phase. The next stage of the project is fabrication and testing of the semi-active bushing. The performance of the manufactured MR bushing is tested on a base excitation apparatus. Varying the current input to the MR valve was found to have a small effect on the response of the suspended mass. The results are in agreement with the effects demonstrated by the dynamic stiffness numerical simulation.
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Haddou, Benderbal Hichem. "Développement d’une nouvelle famille d’indicateurs de performance pour la conception d’un système manufacturier reconfigurable (RMS) : approches évolutionnaires multicritères." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0112/document.
Анотація:
L'environnement manufacturier moderne est face à un bouleversement de paradigmes nécessitant plus de changeabilité au niveau physique et logique. Un système manufacturier Changeable est défini comme un système de production ayant les capacités de faciliter les changements adéquats, permettant d'ajuster ses structures et ses processus en réponse aux différents besoins. Dans ce contexte, les systèmes manufacturiers doivent se doter d’un très haut niveau de reconfigurabilité, qui est considérée comme l’un des facteurs majeurs du concept de changeabilité. En effet, dans la vision de l'Usine du Futur, la reconfigurabilité est essentielle pour s'adapter efficacement à la complexité croissante des environnements manufacturiers. Elle assure une adaptation rapide, efficace et facile de ces systèmes tout en étant réactif, robuste et économiquement compétitif. L’objectif est de répondre aux nouvelles contraintes internes et externes telles que la globalisation, la variété des produits, la personnalisation de masse ou le raccourcissement des délais. À travers cette thèse, nous étudions la problématique de conception des systèmes manufacturiers reconfigurables (Reconfigurable Manufacturing System – RMS). L’objectif consiste à concevoir des systèmes réactifs en se basant sur leurs capacités en matière de reconfigurabilité. Nous avons étudié ce problème sur trois niveaux : (i) le niveau des composantes, relatif aux modules des machines reconfigurables, (ii) le niveau des machines et leurs interactions, ainsi que l’impact de ces interactions sur le système et (iii) le niveau de l'atelier, composé de l'ensemble des machines reconfigurables. Nous avons développé pour chaque niveau, des indicateurs de performance afin d’assurer les meilleures performances du système conçu, tels que l’indicateur de modularité, l’indicateur de flexibilité, l’indicateur de robustesse et l’effort d'évolution d'un système reconfigurable. Pour l'ensemble des problèmes étudiés, nous avons développé des modèles d’optimisation multicritère, résolus à travers des heuristiques ou des métaheuristiques multicritères (comme le recuit simulé multicritère (AMOSA) et les algorithmes génétiques multicritère (NSGA-II)). De nombreuses expériences numériques et analyses ont été réalisées afin de démontrer l’applicabilité de nos approchesThe modern manufacturing environment is facing a paradigm shift that require more changeability at physical and logical levels. A Changeable Manufacturing System is defined as a production system that has the ability to facilitate the right changes, allowing the adjustment of its structures and processes in response to the different needs. In this context, manufacturing systems must have a very high level of reconfigurability, which is considered to be one of the major enablers of changeability. From the perspective of the “Factory of the future”, the reconfigurability is essential to effectively adapt to the ever-increasing complexity of manufacturing environments. It allows a rapid, efficient and easy adaptation of these systems while being responsive, robust and economically competitive. The objective is to respond to new internal and external constraints in terms of globalization, variety of products, mass customization, and shorter lead times. Through this thesis, we study the problem of design of reconfigurable manufacturing systems (RMS) that meets these requirements. The goal is to design responsive systems based on their key features of reconfigurability. We have studied the RMS design problem on three levels: (i) the level of the components, relating to the modules of the reconfigurable machines, (ii) the machine level and their interactions, as well as the impact of these interactions on the system and (iii) the workshop level composed of all the reconfigurable machines. We have developed for each level, performance indicators to ensure a better responsiveness and a high performance of the designed system, like the modularity index, the flexibility index, the robustness index and the layout evolution effort of a reconfigurable system. For each of the studied problems, we developed multicriteria optimization models, solved through heuristics or multicriteria metaheuristics (such as archived multi-objective simulated annealing (AMOSA) and multi-objective genetic algorithms (NSGA-II)). Numerous numerical experiments and analyzes have been performed to demonstrate the applicability of our approaches
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Musarneh, Muntaser Darwish Mustafa. "The Effects of Carbon Monoxide Releasing Molecules (CO-RMS) in Myocardial Inotropy and Protection Against Ischaemia-Reperfusion Injury." Thesis, University College London (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487768.
Анотація:
Myocardial ischaemia reperfusion injury is common in clinical prac.tice. Myocardial infarction is a good example, in which prolonged coronary artery occlusion by a thrombus may be followed by reperfusion either spontaneously or by medical intervention with thrombolytic drugs or acute angioplasty. The heart may also undergo ischaemia-reperfusion during operations that require temporary interruption of myocardial blood supply s~ch as, coronary artery bypass grafting and heart transplantation. Carbon monoxide, one of the products of haem degradation by the enzyme haem oxygenase, has been shown to protect the myocardium against reperfusion injury and confer other desirable effects despite the bad historical reputation it always had (the silent killer and waste product). Special molecules (COtRMs) capable of carrying carbon monoxide and releasing it in physiological solution have been developed to facilitate further investigation of the role of this gas in biosystems under physiological and pathological conditions and to provide the basis for potential therapeutic agent in the future. The aims of this study are to examine: 1) the effects of CO-RMs on hearts perfused under normal physiologic conditions; 2) the mechanism of the positive inotropic effect induced by some CORMs; 3) to test CO positive inotropic action in failing rat hearts; 4) to study the ability of CO-RMs these molecules to protect against ischaemia-reperfusion injury in models resembling myocardial infarction and heart cold preservation. Results demonstrated for the first time that CO-RM possess positive inotropic effects, and that protection was afforded by the drug against myocardial IIR.
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Valdivia, Rolf Henry Vargas. "Influência dos agendadores da computação (RMS) e da comunicação (TDMA) na estabilidade de um sistema de controle por rede." Instituto Nacional de Pesquisas Espaciais, 2009. http://urlib.net/sid.inpe.br/mtc-m18@80/2009/02.06.17.10.
Анотація:
O presente trabalho estuda a influência dos agendadores da computação e da comunicação sobre a estabilidade de um sistema de controle por rede. Para isto um sistema geral de segunda ordem subamortecido foi escolhido como planta com um controlador proporcional. Também um computador com agendador a taxas monotônicas e uma rede de comunicação com controle de acesso ao meio do tipo TDMA foram supostos. As expressões analíticas para o tempo de resposta no computador e no sistema de controle distribuído no pior caso, no melhor caso e no caso de média ponderada foram estabelecidas. A resposta analítica do sistema ao degrau foi obtida e esta foi comparada com a resposta por simulação do sistema naqueles diferentes casos. Estes casos incluem tarefas periódicas com períodos iguais, com períodos diferentes e quando os períodos são primos. Também o caso quando outro dispositivo utiliza a rede gerando slots de interferência foi analisado. Por fim, a redução da margem de fase e, consequentemente, a redução da estabilidade relativa em todos estes casos foi analisada. Todas as simulações foram feitas com ajuda da toolbox TrueTime para o ambiente Matlab/Simulink. Baseados em tudo isto, foi concluido que: 1) as simulações feitas concordam com as expressões analíticas; 2) estas expressões estabelecem a influência de características do agendador da computação (tempo de resposta) e do protocolo de comunicação (slots e rounds) estudado sobre uma característica (margem de fase) do desempenho do controle distribuído estudado, nos casos estudados; 3) a composição de agendadores do computador e da rede não é um processo linear; e 4) as considerações usuais de operação independente entre o computador e a rede de comunicação, podem não ser mais verdadeiras após o momento da integração do computador com a rede de comunicação.The present work studies the influence of computer and communication schedulers on the stability of a networked control system. To do that, a general underdamped second order system was chosen as a plant with a proportional controller. Also a computer with a rate monotonic scheduler and a network with TDMA control access were assumed. The analytical expressions for the response time in a computer and in a distributed control system in the worst case, best case and weighted average case were established. The analytical step response of the system was found and it was compared with the simulated response in those different cases. These cases include tasks with the same periods, with different periods and when the periods are primes. Also the situation when other device uses the network producing interference slots was analyzed. Finally, the reduction of the phase margin and, consequently, the reduction of relative stability were analyzed in all cases. All the simulations were done with the help of TrueTime toolbox to the Matlab/Simulink environment. Based on all this it was concluded that: 1) the simulations done agree with the analytical expressions; 2) these expressions establish the influence of characteristics of the computer scheduler (response time) and the studied communication protocol (slots and rounds) on one characteristic (phase margin) of the studied distributed control in the studied cases; 3) the composition of schedulers is not a linear process and 4) the usual considerations of independence between the computer and the network could be not true anymore after the integration of the computer with communication network.
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Vitor, Avyner Lorran de Oliveira. "Detecção de falhas de estator em motores de indução trifásicos utilizando transformada wavelet, medida RMS e potência de previsão." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/3194.
Анотація:
O Motor de Indução Trifásico é a máquina elétrica mais utilizada no ambiente industrial. Trata-se de um equipamento que apresenta construção robusta, facilidade de manutenção, baixo custo de aquisição e confiabilidade. Contudo, em ambiente fabril, o mesmo está exposto a esforços térmicos, elétricos e mecânicos indesejáveis, os quais, com o passar do tempo, resultam em uma falha. A presente pesquisa consiste em analisar a falha de curto-circuito de estator, uma das falhas mais recorrentes em motores de indução. Para tanto, são investigadas as peculiaridades refletidas nos sinais de corrente estatórica, a fim de correlacionar as características do sinal à falha em questão. Para tanto, os sinais de corrente são processados por meio das transformadas de Fouriere Wavelet, buscando-se isolar frequências características de uma falha de curto-circuito, as quais possam auxiliar na detecção de uma falha. Posteriormente, a classificação a partir das informações ex traídas é efetuado por meio de Redes Neurais Artificiais, especificamente, a perceptron multicamadas e a Radial Basis Function.The Three-Phase Induction Motor is the most utilized electrical machine in industrial envi- ronments. It is an equipment that shows robust construction, ease maintenance, low cost and reliability. However, frequently, machines are exposed to thermal, electrical and mecha- nical efforts, which, over time, result in a failure. This work aims to analize the stator short circuit fault, one of the most frequent induction motor failures. Therefor, the peculiarities of the signals that are reflected in stator current are investigated, in order to correlate the signal characteristics to the failure in question. Current signals are processed through the Fourier and Wavelet transform in order to analyse short-circuit specific frequencies. Subse- quently, the classification is performed through two artificial neural networks, the multilayer perceptron and the Radial Basis Function.
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Souza, Laumar Neves de. "Uma análise da inserção feminina no mercado de trabalho da RMS: uma leitura a parte dos dados da PED." Faculdade de Economia, 2001. http://repositorio.ufba.br/ri/handle/ri/17136.
Анотація:
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CAPES
Este trabalho procura identificar os principais traços que distinguem a natureza da ocupação das mulheres na segunda metade dos anos 90, no mercado de trabalho da RMS, da ocorrida no final dos 80, privilegiando os aspectos que a diferencia daquela apresentada pelos homens.
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Sato, Nathalie Suemi Tiba. "A evolução da dimensão social da integração regional: o caso das normas do Mercosul-Saúde." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/101/101131/tde-21082014-144522/.
Анотація:
O trabalho, composto por dois artigos, tem como tema a dimensão social da integração regional, caracterizada pela relação entre direitos sociais e interesses comerciais, com foco no caso do Mercosul. O primeiro artigo realiza uma revisão bibliográfica, sistematizando-a em duas grandes linhas de estudo. Primeiramente, a relação entre comércio e direitos humanos, em particular o direito à saúde, e o potencial da integração regional para a sua efetivação. Em segundo lugar, as interpretações sobre a evolução institucional e conceitual da dimensão social do Mercosul. O segundo artigo apresenta os resultados do estudo empírico do caso das normas do Mercosul-Saúde, orientado pela hipótese de que, em consonância com uma suposta mudança de paradigma, as normas sanitárias teriam migrado da eliminação de barreiras ao livre comércio para a proposição de políticas integradas tendentes a dar efetividade ao direito à saúde dos cidadãos mercosulinos.This work, consisting of two articles, has as its main theme the social dimension of regional integration, characterized by the relationship between social rights and commercial interests, focusing on the case of Mercosur. The first article conducts a review of the literature, systematizing two main lines of study. Firstly, the relationship between trade and human rights, especially the right to health, and the potential of regional integration for its effectiveness. Secondly, the interpretations of the institutional and conceptual evolution of the social dimension of Mercosur. The second article presents the results of a empirical study of Mercosur\'s health standards, based on the hypothesis that, in line with a supposed paradigm shift, they have migrated from the elimination of barriers to liberalize trade to the proposition of integrated policies to give effectiveness to the right to health of Mercosur\'s citizens.
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Svensson, Andreas, and William Jangren. "Utvärdering av individuella skillnader hos mikrovågssensorer." Thesis, Tekniska Högskolan, Jönköping University, JTH, Datateknik och informatik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-48124.
Анотація:
The purpose of this study is to investigate if individual differences exists between microwave sensors from the same manufacturer and to find which variables of the microwave sensors that can be the reason for those individual differences. To investigate this, an experiment environment was made to gather data from microwave sensors in a repetitive way. This experiment environment was used in three different experiments where individual differences, radiation pattern and noise were measured. As a base for the experiments a literature review was made to find variables that could affect the individual differences. The study shows that individual differences on signal strength can be found on microwave sensors of the type MDU2000 from Microwave solutions. Also, the radiation pattern at higher angles can differentiate. The frequency from the microwave sensors at lower speeds shows no significant difference individually. This study contributes to increased knowledge about individual differences on microwave sensors of the type MDU2000. Results from this study can be used as a recommendation to suitable applications. As both resources and time have been limited during this thesis, the study was limited to only perform tests on microwave sensors of the type doppler radar. Another limit to the study is to only do tests at lower speeds i.e. a maximum speed of 5km/h.Syftet med denna studie är utreda om individuella skillnader finns mellan mikrovågssensorer från samma tillverkare samt att ta reda på vilka variabler hos mikrovågssensorerna som kan bidra till dessa individuella skillnader. För att ta reda på detta konstruerades en experimentmiljö för att samla in data från mikrovågssensorer på ett repetitivt sätt. Denna experimentmiljö användes i tre olika experiment där individuell skillnad, strålningsmönstret samt brus uppmättes. Som grund till experimenten utfördes en litteraturundersökning för att hitta variabler som kan påverka den individuella skillnaden. Studien visar att individuella skillnader på signalstyrka finns bland mikrovågssensorer av typen MDU2000 från Microwave solutions. Även antennens strålningsmönster vid större vinklar kan skilja. Frekvensen från mikrovågssensorn vid lägre hastigheter visar ingen signifikant skillnad individuellt. Denna studie bidrar till ökad kunskap kring individuella skillnader på mikrovågssensorer av typen MDU2000. Resultat från studien kan användas som rekommendation till lämpliga användningsområden. Då både resurser och tid har varit begränsade under examensarbetet sattes en begränsning till att endast utföra tester på mikrovågssensorer av typen dopplerradar. En till begränsning är att endast göra tester på låga hastigheter d.v.s. maximalt 5km/h.
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Moraes, Paulo de. "Análise por geoprocessamento da transmissão da dengue na região metropolitana da Baixada Santista no período de 2012 a 2013." Universidade Católica de Santos, 2014. http://biblioteca.unisantos.br:8181/handle/tede/902.
Анотація:
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This study aims to contribute to knowledge about Aedes aegypti in "metropolitan area of Santos - RMBS.", Based on the spatial analysis of their breeding sites in the insular area of the city of Santos, in the period between 2012 and 2013 proposed the use of techniques spatial data analysis in the surveillance and control of this vector. We used information obtained from the Municipality of Santos reporting through traps placed in blocks and found that transmits dengue mosquitoes. The RMBS comprises the municipalities of Bertioga, Cubatão, Guarujá, Itanhaém, Mongaguá, Peruíbe, Praia Grande, Santos and São Vicente, the last decade has shown an increase of dengue cases. These factors demonstrate the need to describe a detailed study on land management, using as decision aid tool, and geoprocessing.. With an estimated 1,765,277 inhabitants (IBGE 2013), and over the floating population, well above two million, the geographic coverage of 2373 km ² the population is Aedes aegypti, the main transmitter of dengue factor important research in the Region. As a result we expect the temporal and spatial observations of this study projections and results to minimize the epidemic effects.
Este estudo visa contribuir para o conhecimento sobre Aedes aegypti na "Região Metropolitana da Baixada Santista - RMBS", com base na análise espacial de seus criadouros na área insular do Município de Santos, no período entre os anos de 2012 e 2013. Propõe a utilização de técnicas de análise de dados espaciais na vigilância e controle desse vetor. Utilizaram-se informações obtidas na Prefeitura Municipal de Santos que relatam através de armadilhas colocadas em quarteirões e que foram encontradas mosquitos transmissor da dengue. A RMBS composta pelos Municípios de Bertioga, Cubatão, Guarujá, Itanhaém, Mongaguá, Peruíbe, Praia Grande, Santos e São Vicente, vem apresentando na última década um acréscimo de casos de dengue. Tais fatores demonstraram a necessidade de descrever um estudo detalhado na gestão territorial, utilizando como ferramenta de ajuda e decisão o geoprocessamento. Com população estimada de 1.765.277 habitantes (IBGE 2013) e mais a população flutuante, muito acima dois milhões, na abrangência geográfica de 2.373 km² faz do Aedes aegypti, principal transmissor da dengue, fator de pesquisa importante na Região. O Município de Santos como principal cidade da RMBS com população estimada em 433.153 habitantes (IBGE 2013) é referência e base do estudo. Como resultado espera-se a espacialização temporal deste estudo e observações de projeções e seus resultados para minimizar os efeitos epidêmicos.
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Eriksson, Gustav, and Johan Isendahl. "Conceptual decision support tool for RMS-investments : A three-pronged approach to investments with focus on performance metrics for reconfigurability." Thesis, Tekniska Högskolan, Jönköping University, JTH, Produktionsutveckling, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-49773.
Анотація:
Today's society is characterized by a high degree of change where the manufacturing systems are affected by both internal and external factors. To adapt to current manufacturing requirements in the form of short lead-time, more variants, low and fluctuating volumes, in a cost-efficient manner, new approaches are needed. As the global market and its uncertainties for products and its lifecycles change, a concept called 'reconfigurable manufacturing system' has been developed. The idea is to design a manufacturing system for rapid structural change in both hardware and software to be responsive to capacity and functionality. A company's development towards the concept is often based on a strategy of incremental investments. In this situation, the challenges are to prioritize the right project and maximize the performance as well as the financial efficiency of a multi-approach problem. The report is based on three different issues. Partly how to standardize relevant performance-based metrics to measure current conditions, how new performance-based metrics can be developed in collaboration with reconfigurability characteristics, and set a direction for how decision models can be used to optimize step-based investments. The study is structured as an explorative study with qualitative methods such as semi-structured interviews and document study to get in-depth knowledge. Related literature addresses concepts in search areas such as reconfigurable manufacturing system, key performance indicators, investment decisions, and manufacturing readiness levels. The findings are extracted from interviews and document studies that generate a focal company setting within the automotive industry, which acts as the foundation for further analysis and decisions throughout the thesis. The analysis results in sixteen performance measurements where new measures been created for product flexibility, productionvolume flexibility, material handling flexibility, reconfiguration quality and diagnosability using reconfigurability characteristics. A conceptual decision support model is introduced with an underlying seven-step investment process, analyzing lifecycle cost, risk triggered events in relation to cost, and performance measurements. The discussion chapter describes how different approaches are used during the project that has been revised by internal and external factors. Improvement possibilities regarding method choice and the aspects of credibility, transferability, dependability, and conformability are discussed. Furthermore, the authors argue about the analysis process and how the result has been affected by circumstances and choices. The study concludes that a three-pronged approach is needed to validate the investment decision in terms of system performance changes, cost, and uncertainty. The report also helps to understand which performance-based metrics are relevant for evaluating manufacturing systems based on operational goals and manufacturing requirements.
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Alvi, Azra J. "Mutagenèse rétrovirale, transfection avec ß-galactosidase et étude cinétique de la propagation des cellules de rhabdomyosarcome de rat (Modèle SMF/RMS)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60583.pdf.
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Boudoukha, Selim. "Étude de la régulation post-transcriptionnelle de l’expression des gènes par la protéine de liaison à l’ARN IMP-2 au cours de la myogenèse." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA11T095/document.
Анотація:
Les rhabdomyosarcomes embryonnaires et aléolaires (RMS) appartiennent aux tumeurs des tissus mous les plus fréquentes chez les enfants dont elles représentent 2/3 des cas. Plusieurs données suggèrent que la dérégulation des cellules progénitrices du muscle squelettique pourrait jouer un rôle dans l'émergence des cellules de RMS qui ont aussi bien perdu le contrôle de la régulation de la prolifération cellulaire que la capacité à se différencier.Néanmoins les mécanismes de développement des RMS restent à caractériser. La famille des IMPs et notamment IMP-2, protéines liant les ARN, sont à la fois fortement exprimées dans le muscle en régénération in vivo mais aussi dans les cellules de RMS.Au cours de ma thèse, j’ai pu mettre en évidence le rôle d’IMP-2 dans la motilité des cellules de RMS et dans les cellules musculaires ainsi que dans le contrôle de l’intégrité du cytosquelette de microtubules (MTs) et dans le remodelage des adhésions focales. En effet, IMP-2 est impliqué à la fois dans la régulation de l’expression de MuRF-3, une protéine lié àla stabilisation des MTs et de Pinch-2, un important médiateur de l’adhésion cellulaireThe RNA-binding proteins IMPs (IGF-II mRNA binding protein) first discovered in rhabdomyosarcoma cells (RMS) are expressed during embryonic development but their expression is decreased in adult tissues.We showed that IMPs and particularly IMP-2 are strongly expressed in mouse myoblatsts, during early regeneration of skeletal muscle in vivo and in and RMS. IMP-2 loss of function experiments using siRNA have shown that IMP-2 is necessary for microtubules stability(MTs), cell motility and invasion of myoblasts and RMS.Expression of IMP-2 specifically increases MTs stability by an enrichment of detyrosinated tubulin Glu-tubulin. Detyrosination is indispensable for myogenic differentiation and plays substantial role in tumor growth. Additionaly, MTs stabilization play an important role in focal adhesion remodeling, in cytoskeleton integrity, cell adhesion and cell motility.To get new insight into molecular mechanism underlying the function of IMP-2 in MTs stability and cell motility, full ranscriptome analysis was performed between IMP-2 knockdown (KD) myoblasts and control myoblatsts. We have further shown that IMP-2 controls the mRNA levels of many important mediators of cell adhesion such as PINCH-2, as well as multiple cytoskeleton remodeling, such as MuRF-3.We have identified a number of functionally relevant protein partners of IMP-2.Moreover subsequent RNAi screens have revealed the importance of IMP-2 regulated transcripts involved in cell motility and cell adhesion In conclusion, we show that IMP-2 dependent regulation of mRNA such as MuRF3 and PINCH2 largely contributes to the motility –deficient in IMP-2 KD cells. Moreover these results indicate clearly, that further analysis of IMP2 protein partners and RNA targets regulated by IMP-2 will help to characterized the function of IMP-2 and to propose a model of IMP-2 transcriptional regulation of gene expression in myoblasts and RMS cells
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Xavier, Maria Jose. "Estudo sistemático com complexos de inclusão a base de ciclodextrinas no controle de interferentes químico-ambientais : uma metodologia teórica." Universidade Federal de Sergipe, 2009. https://ri.ufs.br/handle/riufs/6122.
Анотація:
Conselho Nacional de Desenvolvimento Científico e TecnológicoOne of the major environmental problems under discussion is related to the fact that natural and synthetic hormones have been frequently found in effluent from Wastewater Treatment Sewage (TSE) and natural waters, as well as the fact that conventional treatments are not effective in removing these substances. These substances are one recent class of environmental contaminants that interfere with the functioning of the human endocrine system and are related to occurrence of several types of cancer. In the attemp to solve this problem, we propose a study, from a theoretical approach, with cyclodextrins (CDs) molecules, that can be able to form inclusion complexes with many organic substances, poorly soluble in water, thus we believe that CDs are complexing agents promising for this task. In this work we studied the complexation of four steroid drugs commonly found in Wastewaters, with fourteen βCDs chosen, under different criterion to determine one CD more promising for the removal these steroids from the environment. Initially, we propose us to identify a semiempirical method can be better in describe the crystal structure of many compounds on the inclusion of CDs. On a second step applying a study about the formation of inclusion complexes with steroids, investigating two inclusion modes: in and out. The initial calculations indicated the PM3 method as the best method in the structural description of this type of system. Since the results of the complexation with steroids suggest that, in general, the structural orientation energetically more favorable corresponds to out arrangement. An analysis about the interactions more significant to the stability of the complex shows that the LH and the interactions dipole-dipole has a small contribution to the stabilization of the complexes, on the other hand, the hydrophobicity of the substituents on steroids rings, has been pointed as a crucial force to decide how s more stable the steroid enters towards the cavity of the CD. And finally, the results show that in general, all the CDs investigated, theoretically, have similar behavior among themselves.
Um dos grandes problemas ambientais em discussão está relacionado ao fato de hormônios naturais e sintéticos estarem sendo freqüentemente encontrados em efluentes de Estações de Tratamento de Esgoto (ETEs) e águas naturais, bem como o fato de os tratamentos convencionais não serem eficientes em remover tais substâncias. Estas substâncias são uma categoria recente de poluentes ambientais que interferem no funcionamento do sistema endócrino humano e de animais, estando relacionadas com o aparecimento de diversos tipos de câncer e disfunções nestes organismos vivos. Na tentativa de contribuir para resolver este problema, propomos um estudo, a partir de uma metodologia teórica, com ciclodextrinas (CDs), moléculas hábeis para formar complexos de inclusão com muitas substâncias orgânicas pouco solúveis em meio aquoso, pois, acreditamos que as CDs são agentes complexantes promissores para tal tarefa. Assim, neste trabalho estudamos a complexação dos 4 esteróides mais comuns encontrados nas ETEs, com 14 βCDs diferentes escolhidas a critério, a fim de determinar uma CD mais promissora para a remoção destes esteróides do meio ambiente. Inicialmente, procuramos identificar um método semiempírico capaz de melhor descrever a estrutura cristalográfica de vários compostos de inclusão a base de CDs, para numa segunda etapa aplicá-lo no estudo da formação de complexos de inclusão com os esteróides, investigando dois modos de inclusão: in e out. Os cálculos iniciais apontaram o método PM3 como o melhor método na descrição estrutural deste tipo de sistema. Já os resultados dos estudos de complexação com os esteróides sugerem que, no geral, o arranjo estrutural energeticamente mais favorável corresponde ao arranjo out. Uma análise das interações mais significativas para a estabilidade dos complexos mostra que, as LHs e as interações dipolo-dipolo têm uma contribuição pequena para a estabilização dos complexos, por outro lado, a hidrofobicidade dos substituintes nos esteróides, se mostrou fundamental para decidir o modo de inclusão mais favorável com que o esteróide entra na cavidade da CD. E finalmente, os resultados mostram que de modo geral, todas as CDs investigadas, teoricamente, possuem comportamento semelhante entre si, na inclusão dos esteróides estudados.
47
Blažková, Naďa. "Povrchová topografie a-CSi:H vrstev připravených v kontinuálním režimu PECVD." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-376884.
Анотація:
The thesis describes surface topography of a-CSi:H films deposited by continuous wave plasma enhanced chemical vapor deposition (PECVD) based on tetravinylsilane monomer (TVS). Thin films are completely used in many fields of modern technologies and their physical and mechanical properties are affected by thin film preparation techniques. In this thesis the thin films were deposited by PECVD method on silicon wafers with the pure TVS monomer. Deposited samples were topographically described and analyzed using atomic force microscopy (AFM). The main characteristics which were described are RMS roughness, autocorrelation function and a size distribution of grains on the thin film surface. Analysis was realized with two sets of samples with different powers and thickness. The main results were statistically evaluated like a mixture of object on the surface prepared in different deposition conditions.
48
Curran, David M. "More than Fighting for Peace? An examination of the role of conflict resolution in training programmes for military peacekeepers." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/5330.
Анотація:
The purpose of this research project is to examine the role of conflict resolution
in training programmes for military peacekeepers. It offers a significant
contribution to the conflict resolution literature by providing contemporary
analysis of where further manifestations exist of the links between military
peacekeeping and the academic study of conflict resolution.
The thesis firstly provides a thorough analysis of where conflict resolution
scholars have sought to critique and influence peacekeeping. This is mirrored
by a survey of policy stemming from the United Nations (UN) in the period
1999-2010. The thesis then undertakes a survey of the role of civil-military
cooperation: an area where there is obvious crossover between military
peacekeeping and conflict resolution terminology. This is achieved firstly
through an analysis of practitioner reports and academic research into the
subject area, and secondly through a fieldwork analysis of training programmes
at the UN Training School Ireland, and Royal Military Training Academy
4
Sandhurst (RMAS). The thesis goes on to provide a comprehensive
examination of the role of negotiation for military peacekeepers. This
examination incorporates a historical overview of negotiation in the British
Army, a sampling of peacekeeping literature, and finally fieldwork observations
of negotiation at RMAS. The thesis discusses how this has impacted
significantly on conceptions of military peacekeepers from both the military and
conflict resolution fields.
The thesis adds considerably to contemporary debates over cosmopolitan
forms of conflict resolution. Firstly it outlines where cosmopolitan ethics are
entering into military training programmes, and how the emergence of
institutionalised approaches in the UN to ¿human security¿ and peacebuilding
facilitate this. Secondly, the thesis uses Woodhouse and Ramsbotham¿s
framework to link the emergence of cosmopolitan values in training
programmes to wider structural changes at a global level.
49
Minkara, Rania. "Locating wireless base stations within a dynamic indoor environment." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681053.
Анотація:
The mobility that wireless communication offers to users, added to the ease of installation have increased the demand on such communication systems. However, the main drawback of wireless communication is the degradation of the signal as it travels through the channel due to the different propagation mechanisms the signal undergoes. To minimise the effect of the channel and get the best service, the base stations must be appropriately located within the environment. This requires proper knowledge of the channel characteristics. Ray tracing software is used throughout this work to generate the channel characteristics of an indoor environment. After getting the channel characteristics, a novel cost function is defined based on the path loss values and it is then optimised. Once the optimal base stations’ positions are found, the minimal amount of power required to cover a predefined percentage of the possible receivers’ locations is calculated. On the other hand, a receiver’s position acquiring enough field strength does not necessarily enjoy the service. This depends on the time dispersion parameters values relative to the symbol rate. The time dispersion parameters have always been ignored in the literature while finding the optimal base stations’ locations. Three cost functions that take into consideration both the path loss and rms delay spread, for the first time in the literature, are therefore defined. The cost functions are optimised and their corresponding results are compared. Furthermore, indoor environments have always been considered static which is never realistic. They are subject to continuous changes such as opening doors and windows as well as the presence of people. The first detailed analysis and quantified results of the effect of a dynamic environment on the optimal base stations’ positions and minimal emitted power are presented. It is shown that the optimal base stations’ locations and minimal emitted power are sensitive to such environment changes. The environment changes can also disturb the service for active receivers. Three techniques to overcome the effect of environment changes and bring the disturbed service back to receivers are proposed. The first two techniques rely on increasing the emitted power or changing the antenna polarisation. The third technique is a novel technique that gives the base station the ability to automatically move in various directions within a limited distance. The techniques are tested and their efficiency and limitations are discussed.
50
Gualchieri, Leonardo. "Simulation of bistatic radar experiments with deep space missions." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9682/.
Анотація:
L’obiettivo del lavoro esposto nella seguente relazione di tesi ha riguardato lo studio e la simulazione di esperimenti di radar bistatico per missioni di esplorazione planeteria. In particolare, il lavoro si è concentrato sull’uso ed il miglioramento di un simulatore software già realizzato da un consorzio di aziende ed enti di ricerca nell’ambito di uno studio dell’Agenzia Spaziale Europea (European Space Agency – ESA) finanziato nel 2008, e svolto fra il 2009 e 2010. L’azienda spagnola GMV ha coordinato lo studio, al quale presero parte anche gruppi di ricerca dell’Università di Roma “Sapienza” e dell’Università di Bologna.
Il lavoro svolto si è incentrato sulla determinazione della causa di alcune inconsistenze negli output relativi alla parte del simulatore, progettato in ambiente MATLAB, finalizzato alla stima delle caratteristiche della superficie di Titano, in particolare la costante dielettrica e la rugosità media della superficie, mediante un esperimento con radar bistatico in modalità downlink eseguito dalla sonda Cassini-Huygens in orbita intorno al Titano stesso.
Esperimenti con radar bistatico per lo studio di corpi celesti sono presenti nella storia dell’esplorazione spaziale fin dagli anni ’60, anche se ogni volta le apparecchiature utilizzate e le fasi di missione, durante le quali questi esperimenti erano effettuati, non sono state mai appositamente progettate per lo scopo. Da qui la necessità di progettare un simulatore per studiare varie possibili modalità di esperimenti con radar bistatico in diversi tipi di missione.
In una prima fase di approccio al simulatore, il lavoro si è incentrato sullo studio della documentazione in allegato al codice così da avere un’idea generale della sua struttura e funzionamento. È seguita poi una fase di studio dettagliato, determinando lo scopo di ogni linea di codice utilizzata, nonché la verifica in letteratura delle formule e dei modelli utilizzati per la determinazione di diversi parametri.
In una seconda fase il lavoro ha previsto l’intervento diretto sul codice con una serie di indagini volte a determinarne la coerenza e l’attendibilità dei risultati. Ogni indagine ha previsto una diminuzione delle ipotesi semplificative imposte al modello utilizzato in modo tale da identificare con maggiore sicurezza la parte del codice responsabile dell’inesattezza degli output del simulatore.
I risultati ottenuti hanno permesso la correzione di alcune parti del codice e la determinazione della principale fonte di errore sugli output, circoscrivendo l’oggetto di studio per future indagini mirate.