Дисертації з теми "DPNs"
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Roy, Birendro M. "DPAS : the Dynamic Project Assessment System." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33351.
Повний текст джерелаIncludes bibliographical references (p. 81-82).
In this thesis, I designed and implemented the second iteration of a web-based system that administers survey questions to users and aggregates responses. Several survey system components were reimplemented according to an updated software architecture, and several new system components were developed. Chief among these is a web-based administration console that provides a unified access method for several frequently used functions. Individual console functions are built around an object-oriented framework that will serve as a basis for the next system design iteration.
by Birendro M. Roy.
M.Eng.
Schmidt, Zachary Wayne, and Zachary Wayne Schmidt. "Characterizing Concealed-Question DPS." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625147.
Повний текст джерелаKeenan, Christopher Ryan. "Stochastic modelling for high fidelity DPGS quality assessment." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249721.
Повний текст джерелаSousa, José Eduardo Bruno de. "Bio-inspired anatomy for autonomous DPWS-compliant automation components." Master's thesis, FCT - UNL, 2009. http://hdl.handle.net/10362/2393.
Повний текст джерелаThis thesis approaches the use of the DPWS technology to implement web-services on small devices, addresses its limitations, and explains an architecture to solve it. An approach to an autonomous device’s simple architecture was realized, using DPWS, and was called Simple DPWS. The objective was to implement/simplify some features in a device in a way that the device can work on its own. The designed architecture is based on that each component has its framework of modules, having always at least the skeleton modules communication and Event Router-Scheduler. The communication module controls all the communication between the devices and the ERS is the responsible for the other modules’ real-time communication. The DPWS toolkit offers no capability of interacting with run-time-appearing services. Thus there was a necessity to do enhancements over the DPWS toolkit to have a dynamic stub and skeleton. This service was called the dynamic service. An experience was done connecting a DPWS toolkit sample service with the corresponding hand-created dynamic service. It was used the lighting service that consists on turning a lamp ON or OFF and getting its status. A GUI was done for the application to be more user-friendly. The results were satisfactory, as the connection worked.
Licata, Nausicaa Valentina. "Identification of new pathways modulating C9orf72-derived DPRs expression." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/276572.
Повний текст джерелаKolář, Radek. "Implementace nástrojů vizualizace pro osazování DPS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241967.
Повний текст джерелаTylich, Ondřej. "Elektromigrace tavidlových zbytků na povrchu DPS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242134.
Повний текст джерелаBlahút, Jozef. "Automatická expoziční jednotka pro výrobu DPS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318637.
Повний текст джерелаStrohe, Hans Gerhard, and Frank Geppert. "DPLS : Algorithmus und Computerprogramm für dynamische Partial-Least-Squares-Modelle." Universität Potsdam, 1997. http://opus.kobv.de/ubp/volltexte/2010/4904/.
Повний текст джерелаMilagaia, Rui Rodrigues. "Dpws middleware to support agent-based manufacturing control and simulation." Master's thesis, FCT - UNL, 2009. http://hdl.handle.net/10362/1872.
Повний текст джерелаIn present manufacturing systems, the current challenge is the development of highly reconfigurable, truly distributed solutions. The tendency is to build manufacturing systems with autonomous, intelligent and distributed components that will support reconfiguration and adaptability. The most promising paradigms for the implementation of such systems are multi-agents and service oriented architectures (SOA), mainly over the DPWS (Device Profile for Web Services) implementation which was aimed at devices. An important limitation of most current multi-agent systems is that the management system is not totally distributed. Failure in the agent responsible for the registry can overthrow the entire system. DPWS does not have this limitation, since the management system is totally distributed. However, DPWS does not support agent autonomy notions as efficiently. The possibility of creating a truly distributed multi-agent system by linking both approaches led to this thesis. A Middleware layer was developed that enables agents to benefit from DPWS functionalities in order to reach the proposed goal. This middleware layer joins agents, databases, hardware, simulators, human interface applications such as production system management, error correction and maintenance, etc. To prove this concept a 3D model of an agent controlled manufacturing system with transporters augmented with DPWS communication interfaces was developed.
Marcelo, Alisson. "Análise de desempenho da camada de segurança de aplicações DPWS." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/71951.
Повний текст джерелаThe growth of use of embedded devices in several application domains makes necessary the reduction of human interaction for the devices control and has motivated the development of new technologies to achieve this goal. The Device Profile for Web Services (DPWS) is one of such technologies. It has been adopted on both industrial and home applications due to its flexibility, scalability and interoperability that allows the direct integration between deeply embedded devices and enterprise management systems. The remote device management requires a high level of data protection that could guarantee the integrity and confidentiality needed by industrial applications. In applications such as process control, strategic data acquisition, power consumption measurement, the possible harm caused by undue interference justify the use of data protection strategies despite the increasing of cost added by security technologies. This paper presents the results of a statistically proven study on the security layer applications of DPWS embedded devices using compressed data. The main objective of this work is to provide the background required to DPWS secure devices design, estimating the impact of many combinations of compression and security algorithms such as gzip, RC4 and AES. It proves that these technologies fit in embedded devices applications when data security is a strong requirement. Additionally, it is shown that performance degradation caused by data compression is compensated by the reduction of the amount of data to be encrypted. Best results were obtained when the compressed data fit in one Ethernet packet. Finally, is concluded that DPWS can replace the current alternatives to process management, having the advantages of scalability direct connection between deeply embedded devices and enterprise management systems.
Cigánek, Martin. "Syntéza a studium nových derivátů diketopyrrolopyrrolů (DPPs) pro organickou elektroniku." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2017. http://www.nusl.cz/ntk/nusl-316170.
Повний текст джерелаSpringborn, Matthias. "Das literarische Vermächtnis jüdischer DPs: Eine Doppelrezension." HATiKVA e.V. – Die Hoffnung Bildungs- und Begegnungsstätte für Jüdische Geschichte und Kultur Sachsen, 2016. https://slub.qucosa.de/id/qucosa%3A34813.
Повний текст джерелаMlýnek, Martin. "Analýza závad na DPS pomocí X-RAY." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221093.
Повний текст джерелаBuřival, Tomáš. "Opravy DPS s BGA a FC pouzdry." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217906.
Повний текст джерелаGerják, Rastislav. "Návrh a konstrukce CNC routeru pro DPS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-319566.
Повний текст джерелаRuge, Marcus. "Stimmungen und Erwartungen im System der Märkte : eine Analyse mit DPLS-Modellen." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2011/5290/.
Повний текст джерелаThis research thesis is devoted to the analysis of sentiments and expectations in the system of economic markets with Dynamic Partial Least Squares (DPLS) models with time-series. The analysis of complex systems with large data sets and discovering relevant patterns require the use of modern statistical methods. The DPLS models, a variant of structural equation models with latent variables, are methodically extended to include multiple lags simultaneously. The econometric models try to identify a large number of latent factors and their unobservable relations. The data consists of about 80 indicators from January 1991 to June 2010 to quantify sentiments, expectations and economically relevant variables and examine the relations in detail. The results show, that the sentiments, the assessment of the current economic situation, are clearly linked with economic variables like investments, incoming orders and stock market developments. The expectations, the assessment of future development, provide a weak to moderate predictive power for up to 18 months in the future. For shorter periods of six months sentiments and expectations are the best available forecast variables. The analysis of model deviations allows to draw conclusions about theoretical concepts such as rationality of expectations. There seem to be phases of systematic over- and undervaluation of the current situation and future development, especially before and after economic crisis. The results should provide a deeper insight into the empirical relationships between subjective assessments and real economic variables.
Bohn, Hendrik. "Web service composition for embedded systems : WS-BPEL extension for DPWS /." Göttingen : Sierke, 2009. http://d-nb.info/99274900X/04.
Повний текст джерелаFloripi, Simone Azevedo. "Argumentos nulos dentro de DPs em portugues brasileiro." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/270803.
Повний текст джерелаDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem
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Resumo: Esta dissertação analisa as características de uma categoria vazia em estruturas possessivas do Português Brasileiro, utilizando o contexto de DP com nomes relacionais, Le., nomes que selecionam outros nomes como argumentos e expressam uma relação de parentesco ou amizade. A análise dessa dissertação está baseada na teoria de Princípios e Parâmetros de Chomsky (1981, 1986) na sua versão mais atualizada, conhecida como Programa Minimalista (Chomsky 1995). Na teoria de Regência e Ligação, a aplicação do Critério Temático nos IÚveis de representação sintática impedia o movimento para posições temáticas. Porém, alguns estudos baseados no Programa Minimalista, como Nunes (1995), Hornstein (1999) e Ferreira (2001), demonstraram ser possível a realização desse movimento ao considerar que papéis temáticos são traços, capazes de licenciar movimento. Dessa maneira, a hipótese defendida por esta dissertação considera o licenciamento do movimento (Copiar e Concatenar) de um DP em estruturas possessivas para uma posição temática, como visualizado no exemplo abaixo. (i) Eva telefonou para a mãe e Para o desenvolvimento deste trabalho, foram utilizadas algumas restrições de movimento (d. Ferreira 2001 e Rodrigues 2001), com o intuito de verificar se tais restrições se aplicariam nas construções relevantes para a minha análise (estruturas com o DP possuidor de uma cv ligada a um nome relacional). Como resultado, observei que esta cv não apresentou comportamento de pronome, o que confirmou minha hipótese de estar lidando com um vestígio de movimento. Já em contexto de impedimento de movimento, me baseei na proposta "de Aoun, Choueiri e Hornstein (2001) sobre um fenômeno apresentado em Libanês. De acordo com os dados encontrados em contexto de ilha, procuro demonstrar que o elemento localizado no DP com nome relacional da oração subordinada apresenta características de um elemento pronominal (um tipo de pronome resumptivo), licenciado por questões de economia devido à configuração de bloqueio para movimento
Abstract: This thesis analyzes the characteristics of an empty category in possessive structures in Brazilian Portuguese, using the context of DPs with relational nouns, i.e., nouns that select other nouns as arguments and express a family or friendship relationship. The analysis in this thesis is based on the PrincipIes and Parameters theory of Chomsky (1981, 1986) in its more current version, known as the Minimalist Program (Chomsky 1995). In the Govemment and Binding theory, applying the Theta Criterion at the syntactic levels of representation banned movement to e-positions. However, some studies based on the Minimalist Program, such as Nunes (1995), Hornstein (1999), and Ferreira (2001), have shown that this movement is possible by considering that e-roles are features, capable of licensing movement. Thus, the hypothesis argued for in this thesis considers licensing of movêment (Copy and Merge) of a DP in possessive structures to a G-position, as shown in the example below. (i) Eva telefonou para a mãe e Eva telephoned to the mother e 'Eva called her mother.' For this study, I have used some restrictions on movement (d. Ferreira 2001 and Rodrigues 2001), with the intention of verifying if such restrictions would apply to the structures relevant for my analysis (the DP possessor of an empty category linked to a relational noun). The result was that this empty category did not show the behavior of a pronoun, which confirmed my hypothesis that it was actually a trace of movement. As for contexts that block movement, I used a proposal by Aoun, Choueiri, and Hornstein (2001) about a phenomenon in Lebanese. According to the data concerning islands, I demonstrate that the element in the DP with a relational noun of the embedded clause shows characteristics of a pronominal element (a kind of resumptive pronoun), licensed for reasons of economy because of the movement blocking configuration
Mestrado
Linguistica
Mestre em Linguística
Pereira, Joana Fernandes Alberto Wilton. "Electrochemical characterization of Dps, a DNA-protecting protein." Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/7820.
Повний текст джерелаThe objectives of the present work were the purification and electrochemical characterization of Dps and study its iron incorporation mechanism in the presence of hydrogen peroxide. A bacterial miniferritin (Dps) from Pseudomonas (Ps.) nautica 617 was expressed in BL21(DE3) E. coli cells transformed with pET21c(+)-1dps plasmid vector. Protein overexpression was performed in nutritionally rich LB medium containing 100 μg/mL ampicillin. Recombinant Dps was purified through a two-step process: weak ionic exchange chromatography (DEAE Sepharose Fast Flow XK 26/40 resin) and strong ionic exchange chromatography (Q Resource resin). Protein concentration was determined through UV/Visible spectroscopy. The electrochemical study was performed through cyclic voltammetry, square wave voltammetry and chronoamperometry; Dps was either in solution or adsorbed to the working electrode. The chosen supporting electrolyte was 200 mM MOPS pH 7.1 buffer with 200 mM NaCl. Electrochemical assays were performed in aerobic and anaerobic environment and in the presence of Dps and Fe(II) and H2O2, both of Dps co-substrates. For the different assays, working electrodes made of gold, glassy carbon and graphite were used with different results and conclusions. The iron incorporation in the ferroxidase centers and mineral core formation were studied. Assay results were obtained through direct electron transfer. Among the observed results, iron oxidation during protein incubation and oxygen production during the catalytic mechanism were observed. DNA-Dps interaction results were inconclusive, although some unconfirmed evidence exists of DNA protection by Dps from electrochemical oxidation.
Magnus, Lindsay Gerald. "Expanding the capabilities of the DPS lonosonde system." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1018243.
Повний текст джерелаMinář, Jan. "Kvalita povrchových úprav DPS a optimalizace testovacího kupónu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377120.
Повний текст джерелаSchneider, Tobias [Verfasser]. "Effekte von dendritischen Polyglycerolsulfaten (dPGS) auf den Gelenkknorpel bei Arthrose / Tobias Schneider." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2016. http://d-nb.info/1114137790/34.
Повний текст джерелаAraújo, Gustavo Medeiros de. "Uma infraestrutura para integração entre dispositivos computacionais heterogêneos baseada na especificação DPWS." Florianópolis, SC, 2009. http://repositorio.ufsc.br/xmlui/handle/123456789/93341.
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Serviços computacionais têm proporcionado facilidades à vida das pessoas, provendo mais agilidade em operações e acesso a informação. Muitos desses serviços são providos por dispositivos que estão espalhados no ambiente de convívio comum. Alguns destes equipamentos podem se conectar e trocar dados entre si utilizando uma infra-estrutura de rede. Entretanto, um conjunto maior de serviços poderia ser oferecido se dispositivos que empregam diferentes tecnologias de comunicação também pudessem se conectar e trocar dados. Dessa forma, seria possível aproveitar classes diversas de equipamentos para construção de soluções que atendam cenários de aplicação diversos. Com o objetivo de proporcionar um mecanismo que reúna serviços oferecidos por dispositivos heterogêneos é proposto neste trabalho o Device Service Bus (DSB). O DSB consiste em uma infra-estrutura de middleware empregada para integração de diferentes dispositivos embarcados em ambiente de computação ubíqua. Baseado no Devices Profile for Web Services (DPWS) como tecnologia de integração, o DSB permite interação de vários dispositivos que adotam diferentes padrões de comunicação. Esse trabalho apresenta uma implementação de um protótipo do DSB, que provê componentes de software que são implantados em dispositivos responsáveis por construir um barramento de integração entre dispositivos heterogêneos. Além disso, dois cenários de aplicação real reunindo sensores Sun SPOT e leitores RFID, e medições de desempenho obtidas com estes dispositivos também são apresentados nesse trabalho.
Pacheco-Olivella, Arsenio Andrew. "Synthesis, characterization, and reactivity with dioxygen, of Ru(OEP)(DPS)₂ and Ru(OEP)(DecMS)₂ [OEP= dianion of octaethylporphyrin; DPS= diphenylsulphide; DecMS= decylmethylsulphide]." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26020.
Повний текст джерелаScience, Faculty of
Chemistry, Department of
Graduate
Vala, Martin. "Analýza defektů na DPS za použití moderních optických metod." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-254482.
Повний текст джерелаFord, Anthony W. "WV DPMS district level pavement management system for West Virginia DOH district 5 /." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1870.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains viii, 186 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 127-129).
Hanquist, Carl-Henrik. "Airborne Radar Ground Clutter Suppression Using Multitaper Spectrum Estimation & Choosing DPSS Parameters." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-71309.
Повний текст джерелаEn av de största utmaningarna i ett flygburet radarsystem är att urskilja ett mål från markekot. Problem uppstår eftersom markekot, kallat markklotter, kan vara upp emot en miljon gånger starkare än svaret från målet i fråga. I dagsläget används flera olika filtreringmetoder i flyburna radarsystem för att urskilja målet från markklottret, alla har sina fördelar och nackdelar. I en ideal värld skulle det optimala filtret filtrera ut markklottret fullständigt och endast bevara målsignalen. Eftersom dessa filter inte existerar i verkligheten eftersträvas istället ett filter med låga sidlober och minimal förlust i signal-till-interferens ration. En typ av filter som uppvisar detta beteende är diskreta prolata sfäroid sekvenser (DPSS). Denna uppsats undersöker ifall DPSS kan användas som viktfunktioner i multitaper spektralestimering för att filtrera ut markklotter i en radarsignal. En enkel klottermodell utvecklades för generering av simulerat markklotter som sedan filtrerades ut med multitaper metoden och en traditionell metod. Resultatet visade att det var möjligt att använda DPSS i multitaper spektralestimering och att metodens prestanda överstiger den traditionella meteoden, så länge parametrar som bandbredd och antal använda sekvenser väljs korrekt. Prestandaförbättringen mot den traditionella metoden uppstår mot en kostnad i beräkningstid som ökar med varje DPSS ordning som används. Ett full factorial experiment utfördes också för att undersöka vilka parametrar som hade störst påverkan för att maximera förbättringsfaktorn och minsta detekterbara hastighet. Resultated visade att låg bandbredd vid generering av DPSS var att föredra, samt att ett stort antal använda DPSS och tidssamples ökade prestandan. Resultaten visade också att för ett ökat antal tisdssamples så måste bandbredd och antal sekvenser som används justeras för att bibehålla samma nivå av förbättringsfaktorn. Slutligen rekommenderades det att framtida arbete borde fokusera på validering med mer avancerade klottermodeller och MTI filter i simuleringar, samt validering mot verklig radar data. Om detta visar sig framgångsrikt bör optimering av beräkningstid och implementation av ett adaptivt val av DPSS bandbredd göras före implementering i ett radarsystem.
Rehn, Alexandra [Verfasser]. "Adjectives and the Syntax of German(ic) DPs / Alexandra Rehn." Konstanz : KOPS Universität Konstanz, 2019. http://d-nb.info/1198680474/34.
Повний текст джерелаSang, Tingting. "Integrated Electro-thermal Design Methodology in Distributed Power Systems (DPS)." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/9678.
Повний текст джерелаMaster of Science
Hitchings, Matthew D. "Biochemical and structural analysis of the Streptomyces coelicolor Dps proteins." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42992.
Повний текст джерелаChloupek, Tomáš. "Hodnocení materiálových a procesních faktorů na DPS metodou smáčecích vah." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217899.
Повний текст джерелаHeyer, Elodie. "Elaboration d'édifices multi-chromophoriques à base de DPPs et BODIPYs : vers des applications photovoltaïques." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF022/document.
Повний текст джерелаThe projects developed in this thesis consisted in the elaboration of multi-chromophoric scaffolds towards applications in bulk heterojunction organic solar cells. The design of the materials was guided by three main parameters: (i) the increase of the planarity to observe a better intermolecular organization; (ii) the broadening of the spectral absorption window in order to maximize the number of absorbed photons; (iii) the increase of the electronic density in order to facilitate the charge separation. First, the structural properties of mono-functionalized polycyclic aromatic hydrocarbons (PAH) were investigated with the synthesis of 2-bromodibenzo[g,p]chrysene by Scholl type reactions, followed by its functionalization and the development of related materials. Then we also focused on another PAH: benzo[1,2-b:3,4-b’:5,6-b’’]trithiophene and its subsequent functionalization. α-Fused dithienyl BODIPYs were then built according to an original procedure based on intramolecular oxidative coupling reactions. Substituted and functionalizable planar compounds were obtained bypassing the instability of the pyrrole ring chemistry. Subsequently, the elaboration of dyads and triads based on DPPs, BODIPY and triphenylamines led to the examination of the fluorescence quenching process by static and ultrafast spectroscopies. A last project consisted in the study and applications of D-A-D edifices based on BODIPYs and ternary aromatic amines
Angiolini, Emanuele. "Contribution to the understanding of filtration and pressure drop phenomena in wall-flow DPFs." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/86157.
Повний текст джерелаDesde las últimas décadas del siglo XX, se ha producido un proceso de mejora continua de los motores de combustión interna alternativos con el fin de aumentar su eficiencia y reducir las emisiones contaminantes. La reducción de la disponibilidad de combustibles fósiles y el incremento de la polución de origen antropogénico observados en las ultimas décadas ha provocado el progresivo endurecimiento de las normativas anticontaminación a nivel mundial obligando a los fabricantes de motores a buscar la reducción continua del consumo de combustible y emisiones, manteniendo las prestaciones del motor. El cumplimiento de las actuales y futuras normativas anticontaminación requiere de la instalación de diversos sistemas de postratamiento de gases en la línea de escape de los motores de combustión interna alternativos, aumentando su complejidad. Entre estos sistemas, el filtro de partículas es el equipo encargado de la reducción de la emisión de hollín a la atmósfera. Con respeto a los motores de encendido por compresión, los filtros de partículas diésel se implementaron por primera vez de forma masiva en vehículos de pasajeros y vehículos pesados a principio del siglo XXI. La normativa anti contaminación Euro 6 limita las emisiones de partículas de los motores de inyección directa, extendiendo el uso de filtros de partículas a los motores de inyección directa de gasolina. Es necesario tener un conocimiento profundo de los fenómenos que tienen lugar en el DPF para comprender el comportamiento de este sistema y su interacción con el motor. El conocimiento de los procesos de filtrado y perdida de presión es vital para el diseño del filtro de partículas y resulta esencial para encontrar y analizar soluciones que ayuden a limitar el impacto negativo del DPF sobre el consumo de combustible sin perder la capacidad de retener partículas de hollín. En este contexto, este trabajo pretende aportar una contribucción a la comprensión de estos fenómenos en filtros de partículas de flujo de pared. Esta tarea se ha planteado desde un punto de vista computacional y experimental. Parte importante de este trabajo ha consistido en el desarrollo y validación de un modelo de filtrado unidimensional de DPF que se ha acoplado con el modelo de caida de presión ya existente. El modelo se ha implementado en OpenWAM¿, el software de libre acceso para el cálculo fluidodinámico de motores de combustión interna y sus componentes desarrollado en CMT - Motores Térmicos. La herramienta computacional desarrollada se ha aplicado a la evaluación del potencial de reducción de volumen de sistemas de postratamiento (DOC&DPF) en configuraciones post- y pre-turbo. Este estudio se ha completado con un análisis experimental para dar respaldo a los conceptos teóricos empleados discutiendo como el perfil de deposición del hollín y las propiedades de la capa de partículas afectan a la perdida de presión del DPF.
Des les últimes dècades del segle XX, s'ha produït un procés de millora contínua dels motors de combustió interna alternatius amb l'objectiu d'augmentar la seua eficiència i reduir les emissions contaminants. La reducció de la disponibilitat de combustibles fòssils i l'increment de la polució d'origen antropòlogic observats en les últimes dècades ha provocat que les normatives anticontaminació s'han fet més rígides a nivell mundial, obligant als fabricants de motors a buscar la reducció contínua del consum de combustibles i emissions, mantenint les prestacions dels motors. El cumpliment de les normes anticontaminació actuals i futures, requereixen de l'instalació de diversos sistemes de post-tractament de gasos a l'eixida dels motors de combustió interna alternatius, llavors augmentant la complexitat. Entre aquestos sistemes, el filtre de partícules es l'equip encarregat de la reducció de les partícules de sutge a l'atmosfera. Respecte als motors d'encès per compressió, els filtres de partícules van instalar-se de manera massiva als vehicles de passatgers i vehicles pesats al principi del segle XXI. La normativa anti contaminació Euro 6 limita les emissions de partícules dels motors d'inyecció directa, estenent l'ús del filtre de partícules als motors d'injecció directa de gasolina. És necessari tindre un coneixement dels fenòmens que tenen lloc al DPF per a comprendre el comportament del sistema i la seua interacció amb el motor. El coneixement dels processos de filtrat i la pèrdua de pressió és vital per al diseny del filtre de partícules i resulta essencial per a trobar i analitzar les solucions que ajuden a limitar l'impacte negatiu del DPF sobre el consum de combustible sense perdre la capacitat de retenir partícules de sutge. En aquest context, el projecte pretén aportar una contribució a la comprensió d'aquestos fenòmens en els filtres de partícules de flux de paret. Aquesta feina s'ha plantejat des d'un punt de vista computacional i experimental. Part important d'aquest treball ha consistit en el desenvolupament i validació d'un model de filtrat unidimensional de DPF que s'ha acoplat a un model de pèrdua de pressió existent. El model s'ha implementat en OpenWAM¿, el software de lliure accés per al cálcul fluidodinámic de motors de combustió interna i els seus components desenvolupats al CMT - Motores Térmicos. La ferramenta computacional desenvolupada s'ha aplicat a la evaluació del potencial de reducció del volum de sistemes de post tractament (DOC&DPF) en les configuracions post- i pre-turbo. Aquest estudi s'ha completat amb una anàlisi experimental per a donar suport als concepts teòrics emprats discutint com el perfil de la disposició de sutge i les propietats de la capa de partícules que afecten a la pèrdua de pressió del DPF.
Angiolini, E. (2017). Contribution to the understanding of filtration and pressure drop phenomena in wall-flow DPFs [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/86157
TESIS
Ssessanga, Nicholas. "Investigation into the extended capabilities of the new DPS-4D ionosonde." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1005257.
Повний текст джерелаJežík, Jan. "Studium dielektrické relaxace v základních materiálech DPS a v izolacích kabelů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219358.
Повний текст джерелаMeyer, Troeltsch Reinhart Karl. "La construcción iterativa de un instrumento para medir las tres actitudes centrales en la terapia de la imperfección ti." Thesis, Universidad de las Américas Puebla, 2010. http://catarina.udlap.mx/u_dl_a/tales/documentos/dps/meyer_t_rk/.
Повний текст джерелаGonz��lez, Macip Socorro. "Estilos de apego, conductas sexuales de riesgo e ideaci��n suicida en estudiantes universitarios." Thesis, Universidad de las Am��ricas Puebla, 2009. http://catarina.udlap.mx/u_dl_a/tales/documentos/dps/gonzalez_m_s/.
Повний текст джерелаCarrillo, Árcega María de Lourdes. "Adaptación, ansiedad y autoestima en niños: comparación entre escuelas tradicional y Montessori." Thesis, Universidad de las Américas Puebla, 2010. http://catarina.udlap.mx/u_dl_a/tales/documentos/dps/carrillo_a_md/.
Повний текст джерелаVelázquez, Romero Yolanda. "Relación entre la diferenciación del self y el bienestar subjetivo en jóvenes mexicanos." Thesis, Universidad de las Américas Puebla, 2011. http://catarina.udlap.mx/u_dl_a/tales/documentos/dps/velazquez_r_y/.
Повний текст джерелаPinto, Raffael Costa de Figueiredo. "Propriedades térmicas, dielétricas e vibracionais de Ormosil's baseados em DPMS e TEOS dopados com MDS." Universidade Federal do Maranhão, 2008. http://tedebc.ufma.br:8080/jspui/handle/tede/1584.
Повний текст джерелаMade available in DSpace on 2017-06-06T20:07:41Z (GMT). No. of bitstreams: 1 RaffaelPinto.pdf: 7905766 bytes, checksum: 7f7997961e840698d9d936cdea00b602 (MD5) Previous issue date: 2008-05-21
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In this work have been investigated the dielectric and vibrational properties of the ORMOSIL membranes based on PDMS and TEOS doped with MDS using the Di erential Scanning Calorimetry (DSC), impedance, Raman and infrareds spectroscopy technics. Such membranes are hybrid organic-inorganic materials with potential application in PEMFC (Proton Exchange Membrane Fuel Cell) and were doped with concentrations 0%(Pure Membrane), 5%, 10%, 20% e 30% of MDS. The thermal measurements were performed in the range from room temperature and 550 oC. The results showed that, after the MDS inclusion, the membranes absorb water. Besides, then thermal stability of the membranes decreased with the MDS inclusion. The dielectrics measurements were performed in temperature range of 313K-373K. The results showed that room temperature conductivity increases linearly with the frequency, until 353K, suggesting a hopping conduction and leaving this linear behavior above 353K. Besides, it was observed that conductivity doesn't increases linearly with MDS concentration, but increases until maximal value for 20% MDS concentration and decreases again for 30% MDS concentration de ning a synergetic e ect, which probably is associate with con gurational arrange of microcristallites MDS. Another feature of that membranes is a relaxation process visible in the electrical module graphics which appear just in doped membranes, being however, due to the MDS. The vibrational properties of hybrids membranes were obtained through Raman scattering and infrared. The results con rmed the presence of Si¡O¡Si, Si¡C, Si¡OH, C2H5, Si¡CH3, CH3, CH2, C¡H, S=O and S¡O groups. Where the S=O and S¡O groups are presents just in MDS compound. Consequently, their respective peaks appear only in the doped membrane spectra.
Neste trabalho foram investigadas as propriedades térmicas, dielétricas e vibracionais das membranas de ORMOSIL baseadas em PDMS e TEOS dopadas com MDS através das técnicas de calorimetria diferencial de varredura, espectroscopias de impedância, Raman e infravermelho. Essas membranas são materiais híbridos orgânico-inorgânico com grande potencialidade de aplicação em células combustíveis do tipo PEM (Proton Exchange Membrane) e foram dopadas nas concentrações de 0%(Pura), 5%, 10%, 20% e 30% de MDS. As medidas térmicas foram realizadas entre a temperatura ambiente e 500 oC e mostraram que as membranas passam a absorver água quando o MDS é inserido. Mostraram também que as membranas têm sua estabilidade térmica reduzida quando o MDS é inserido. As medidas dielétricas foram realizadas no intervalo de temperatura entre 40 e 100oC. Os resultados mostraram que a condutividade à temperatura ambiente aumenta de maneira praticamente linear com a freqüência, mantendo-se assim até 80±C sugerindo uma condução por hopping e deixando de ter esse comportamento linear para temperaturas acima de 80±C. Observou-se também que a condutividade não aumenta linearmente com a concentração de MDS, mas atinge um valor máximo para a membrana com 20% de MDS e diminui novamente para a membrana com 30% de MDS caracterizando assim um efeito sinergético, que provavelmente está associado ao arranjo configuracional dos microcristalitos do MDS. Uma outra característica interessante dessas membranas, é um processo de relaxação visível nos grá cos do módulo elétrico o qual consta apenas nas membranas dopadas, sendo portanto, característico do MDS. As propriedades vibracionais desses materiais híbridos foram determinadas através de medidas do espalhamento Raman. Os resultados da espectroscopia Raman e infravermelho confirmaram a presença dos grupos Si¡O¡Si, Si¡C, Si¡OH, C2H5, Si¡CH3, CH3, CH2, C¡H, S=O e S¡O. Onde estes dois últimos estão presentes somente no MDS e, por essa razão, seus respectivos picos só se apresentaram no espectro das membranas dopadas.
Gull, Erica. "Upplevd beroendefokuserad psykologisk kontroll och dess inverkan på social ångest : En kvantitativ enkätstudie om relationen mellan beroendefokuserat psykologiskt kontrollerande föräldrar och social ångest hos svenska ungdomar." Thesis, Karlstads universitet, Institutionen för sociala och psykologiska studier, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-57033.
Повний текст джерелаThe purpose of the study was to examine the relation between experienced dependency-oriented psychological control and social anxiety in adolescents, and if there were any differences in adolescents’ social anxiety depending on the participant’s and the parent’s gender, as well as degree of experienced dependency-oriented psychological control. Data was collected via the ongoing project Trestadsstudien through a survey conducted during the spring of 2015. Dependency-oriented psychological control was measured with the subscale for DPC in DAPCS, and social anxiety with SPSQ-C. 2958 students in eight and ninth grade from twelve Swedish schools participated. Data was analyzed via correlations, t-tests and ANOVA. Results showed significant positive correlations between experienced dependency-oriented psychological control and social anxiety, as well as significant main effects in the form of the participant’s gender and degree of experienced dependency-oriented psychological control regarding social anxiety. Results also showed that boys to a higher extent experienced dependency-oriented psychological control from their fathers, and that girls experienced more social anxiety. It was concluded that experienced dependency-oriented psychological control seems like a contributing factor to the development of social anxiety, but that other underlying variables likely contribute to the anxiety, and mostly in girls. Other areas of interest for future research concerning both phenomena were pointed out based on the results. Lastly some practical suggestions were made regarding what could be done in schools to note the phenomena and help the adolescents who suffer from social anxiety and are subjected to dependency-oriented psychological control.
Wallace, Kenneth N. "Analysis of Dpn, a HES type transcription factor, in Drosophila melanogaster neurogenesis /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487951214937741.
Повний текст джерелаYung, Yat Fong. "Digital pixel sensor (DPS) array based on pulse width modulation (PWM) scheme /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202004%20YUNG.
Повний текст джерелаToufar, Michal. "Analýza metod nanášení tavidel a pájecích past na DPS pro BGA komponenty." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241971.
Повний текст джерелаNestrojil, Martin. "Zpracování DPS silových a datových rozvodů pro historickou a památkově chráněnou budovu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377124.
Повний текст джерелаAlli, Idd Pazi. "Channel estimation in mobile wireless systems." Thesis, KTH, Signalbehandling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98754.
Повний текст джерелаKamran, Beenish, Kate Beatty, LeighAnne Hurst, and Deborah L. Slawson. "Identifying Motivators and Barriers for Wellness Programs to Inform Recruitment and Retention of Diabetes Prevention Programs (DPPs)." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/62.
Повний текст джерелаHinterwimmer, Stefan. "The interpretation of Universally Quantified DPs and singular definites in adverbially quantified sentences." Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2008/1940/.
Повний текст джерелаSewall, Evan Andrew. "Development of a Thermal Management Methodology for a Front-End DPS Power Supply." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35488.
Повний текст джерелаMaster of Science