Dissertations / Theses on the topic 'IMeS'
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Imes, Dennis Verfasser], and Rainer Franz [Gutachter] [Hedrich. "Aufklärung der molekularen Struktur und Funktion des R-Typ Anionenkanals QUAC1 in Schließzellen / Dennis Imes ; Gutachter: Rainer Hedrich." Würzburg : Universität Würzburg, 2016. http://d-nb.info/111514524X/34.
Full textImes, Dennis [Verfasser], and Rainer Franz [Gutachter] Hedrich. "Aufklärung der molekularen Struktur und Funktion des R-Typ Anionenkanals QUAC1 in Schließzellen / Dennis Imes ; Gutachter: Rainer Hedrich." Würzburg : Universität Würzburg, 2016. http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-136860.
Full textBarnes, Stéphanie. "[(IMes)2Pt(H)(Cl)]-Borabenzene Adducts : Synthesis and Reactivity of Complexes containing a Pt-Cl-B Interaction with Borabenzene." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27843/27843.pdf.
Full textBarnes, Stéphanie S. "[(IMes)₂Pt(H)(Cl)]-borabenzene adducts : synthesis and reactivity of complexes containing a Pt-Cl-B interaction with borabenzene." Master's thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21391.
Full textDeux des intérêts principaux dans notre groupe de recherche sont les interactions des acides de Lewis du groupe 13 avec des métaux de transition et la chimie du borabenzène. Les complexes des métaux de transition avec les borabenzènes neutres ne sont pas communs et consistent en une interaction n⁶ avec le cycle aromatique. Dans le but de stabiliser un nouveau mode de coordination n¹, l'interaction des boracyclohexadiènes avec des composés de Pt(0)IMes₂ (IMes = l, 3-di(2,4,6-triméthylphényl) imidazolin-2-ylidène) a été étudiée. Les complexes de Pt(II) obtenus contiennent une interaction Pt-Cl-B, qui est un nouveau mode de coordination pour le borabenzène. Ces complexes, et leur réactivité avec une série de bases de Lewis, substrats électrophiles et métaux de transition, ont été examinés par des études RMN et DFT.
Samet, Ahmed. "Contribution à l'identification des sources vibratoires et à la détection des défauts par approche énergétique." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC055/document.
Full textThe identification of inputs forces acting on structures and the detection of defects from operating measurement have been important topics in both academic and industrial projects. The choice of the used tool or method depends on the frequency band of study since there are appropriate approaches for each frequency domain. An energetic method so called the simplified energy method (MES) is used to predict the distribution of the vibro-acoustic energy density in the medium and high frequency band. The objective of this thesis is to extend this energy method to solve inverse vibro-acoustic problems and to identify the sources of vibrations on one hand and to detect the defects on the other hand. The inverse MES formulation (IMES) is numerically validated for continuous coupling-based systems such as the case of a system composed with several coupled plates and the case of a system composed of an acoustic cavity coupled with a plate. In addition, a new numerical methodology is proposed to extend this IMES identification tool for the detection of defects. A parametric analysis is performed in the case of plate with defects in order to test the robustness and the efficiency of this approach. Finally, an experimental study is carried out to validate the IMES technique to identify and locate the input loads for several scenarios, and detecting the defects
Coluzzi, Charles. "L'exploration des génomes par l'outil ICEFinder révèle la forte prévalence et l'extrême diversité des ICE et des IME de streptocoques." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0352/document.
Full textMobile genetic elements largely contribute to the evolution and diversity of bacterial genomes through horizontal gene transfer. Among them, the integrative and conjugative elements (ICEs) encode their own excision, conjugative transfer and integration. On the other hand, integrative mobilizable elements (IMEs) are autonomous for excision and integration but encode only some of the proteins needed for their conjugative transfer. IMEs therefore need a “helper” conjugative element to transfer. Despite their impact on gene flow and genome dynamics, the prevalence of ICEs remains largely underscored and very few IMEs were identified at the beginning of this study. Furthermore, although several in silico methods exist to detect genomic islands, none are dedicated to ICEs or IMEs, thus complicating exhaustive examination of these mobile elements. The Streptococcus genus belongs to the firmicutes’ phylum. Almost all streptococci are commensal bacteria or pathogenes to men and animals. Two species of Streptococcus are also used in the dairy industry as lactic ferments in order to produce fermented milk and different types of cheese. Studying the gene flux of the Steptococci genus and the impact it can have on the lifestyle of these organisms is essential, as it has a lot of interest for human health and activities. In this work, we searched for ICEs and IMEs in 124 strains of streptococci belonging to 27 species using a reference database of ICE and IME signature proteins (from their conjugation, mobilization and integration/excision modules). This exhaustive analysis led to the identification and delimitation of 131 ICEs or slightly decayed ICEs and 144 IMEs. All these elements were delimited, which allowed us to identify their integration specificities in the genomes. In total, 17 ICE integration specificities were identified. Among them, 8 had never been described before (ftsK, guaA, lysS, mutT, rpmG, rpsI, traG and ybaB/EbfC). 18 specificities were also identified for IMEs, among which only 5 were known for the firmicutes. ICEs encode high or low-specificity tyrosine integrases (13 different specificities), single serine intégrases (1 specificity), triplet of serine integrases (3 different specificities), or DDE transposases while IMEs encode either tyrosine integrases (10 different specificities) or single serine integrases (8 different specificities). ICE were grouped in 7 distinct families according to the proteins encoded by their conjugation module whereas the mobilization modules of IMEs were highly diverse, preventing them from grouping into families according to their mobilization modules. The phylogenetic analysis of the signature proteins encoded by all ICEs and IMEs showed integration module exchanges between ICEs and IMEs and several mobilization module exchanges between IMEs. The overall results reveal a strong prevalence and extreme diversity of these elements among Streptococci genomes. Better understanding and knowledge of ICEs and IMEs prompted us to build a semi-automated command-line tool to identify streptococcal ICEs and IMEs as well as to determine their insertion site
Cornejo, Zuñiga Eder, Murguía Heydi Mariela Palomino, Urbina Sandra Ursula Rivera, and Dulanto Sandy Paola Salvador. "IMEX." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2018. http://hdl.handle.net/10757/625402.
Full textModern day international commerce and foreign trade has been subject to many changes due to the rise of the internet, mobile apps and globalization understood as a widespread movement not exclusive to countries considered to be of the first world. Peru is not the exception and proof of that are the countless new enterprises and startups that are appearing, changing the rules of the game and the way we do business. The purpose of our project is to reach a new solution in the way foreign trade is executed in our country and to prove that we can save our potential users time and money leading to decision-making. During our investigation we immersed ourselves as a team in the world of international commerce, understanding what motivates the entrepreneurs, how they gather information about the different providers that offer these services, how they manage time, and how satisfied they are with the way things work currently. We have discovered that there is a vast market that we can focus on, upwards of about 50,000 companies that would benefit from our business model which allowing us to reach 2% market share in just our first year of operations. Through the surveys, projections and financial estimates we were able to reach the conclusion that IMEX will be a sought after service for our potential user base, because we will bring practicality, accessibility, a solid CRM foundation and an innovative solution to every businessman that values their time and their money.
Trabajo de investigación
Master, Tobiah R. "Warehouse redesign of facility layout, racking system and item classification at Sunrise Tackle, Inc." Click here to view, 2009. http://digitalcommons.calpoly.edu/imesp/1/.
Full textProject advisor: Unny Menon. Title from PDF title page; viewed on Feb. 2, 2010. Includes bibliographical references. Also available on microfiche.
Kalaglarski, Boris Iv, and Geronimo Emilio Di. "IMS Interworking." Thesis, KTH, Kommunikationssystem, CoS, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91992.
Full textMålet med denna uppsats var att analysera IP Multimedia Subsystem (IMS) med fokus på samverkan mellan två eller flera IMS domäner som tillhör olika operatörer. Examensjobbet beskriver en övergripande bild av IMS, dess målsättning, förhållanderna och miljön som den har utvecklats i och några utav utmaningarna som ligger framöver. Uppsatsen försöker med hjälp av bakgrundsfakta om mobiltelefonins historia ge läsarna förståelse om vad IMS är, syftet med det och varför det existerar. Uppsatsen beskriver olika samverkningsmodeller av IMS som grundar sig i modeller från de olika standardiseringsorganen samt från telecomindustrin. Målet med denna analys är att identifiera några problemaspekter samt presentera konkreta områden att fortsätta arbeta på gällande IMS och dess gällande samverkan mellan olika operatörer. Detta kan bidra till fortsatt framgång med utvecklingen samt utspridningen av IMS. Uppsatsen tar upp samverkningsproblem med IMS så som DNS, olika uppslagsmetoder av ENUM DNS, säkerhetsfrågor och säkerhetstekniska utmaningar med fokus på nätverket samt några IMS nätverkselement som DNS:en. Uppsatsen lägger också fram författarnas slutsatser gällande samverkan av de olika nätverken med olika versioner av IP protokollet. Examensjobbet fokuserar på de olika områderna som är ovan nämnda, då de har blivit identiferade med speciell betydelse för att kunna fortsätta att framgångsrikt utveckla IMS arkitekturen.
Pickard, Brian D. "Development of A GIS Based Infrastructure Replacement Prioritization System; A Case Study." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001496.
Full textKnowles, Emily Katherine. "Noble Imps : Shakespeare's Child Characters." Thesis, University of Liverpool, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502257.
Full textKutkina, Alena. "Ocenění společnosti IMOS Brno, a.s." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-73384.
Full textNagy, Ľuboš. "Tvorba IMS aplikací." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218175.
Full textGhimire, Jenisha. "Localization of Ime4 in Saccharomyces cerevisiae." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/honors_theses/12.
Full textWendhausen, Paulo Antonio Pereira. "Tecnologia de produção de imãs SmCo5." reponame:Repositório Institucional da UFSC, 1990. https://repositorio.ufsc.br/xmlui/handle/123456789/157650.
Full textMade available in DSpace on 2016-01-08T16:49:33Z (GMT). No. of bitstreams: 1 79101.pdf: 5471139 bytes, checksum: 99a9fdf6bb704c8cde1ada908776f365 (MD5) Previous issue date: 1990
Estudou-se o processo de obtenção de ímãs de SmCo5. O processo como um todo compreendeu as seguintes etapas: 1) produção da liga base de SmCo5 por processo de redução-difusão (R-D); 2) moagem da liga base; 3) ajuste da composição através da adição de uma liga de Sm2Co7 (obtida por fusão); 4) compactação do pó sob campo magnético; 5) sinterização e tratamento térmico dos ímãs. Os ímãs foram caracterizados através de análise química, microestrutural e de propriedades magnéticas. A composição química foi avaliada em termos de samário, cobalto, cálcio, e oxigênio, utilizando-se espectroscopia de energia dispersiva, fluorescência de raio-x e redução carbotérmica. Para análise microestrutural utilizaram-se técnicas de microscopia ótica e eletrônica (MEV) e as propriedades magnéticas, como a remanência e a coercitividade, foram avaliadas em magnetômetro de amostra vibrante. Empregando-se condições de tempo e temperatura de 4 horas e 1150oC e excesso de cálcio de 40% foi possível obter altos rendimentos combinados com um grau de desintegralibilidade satisfatório da liga. A liga base, com a composição química e composição de fases desejadas, foi obtida empregando-se um excesso da Sm2Co3 de 15%. A obtenção de uma microestrutura adequada à obtenção de boas propriedades magnéticas foi possível sinterizando-se ligas com teores de samário metálico em torno de 35% a 1100oC durante 1 hora.
Ježek, Jiří. "Open Source implementace IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413075.
Full textDohnálek, Václav. "Multimediální služby v IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217854.
Full textPorubský, Tomáš. "Řešení bezpečnosti v IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218174.
Full textRussell, Kenneth B. "IMPS : implicit surfaces for interactive animated characters." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/62343.
Full textIncludes bibliographical references (leaves 64-68).
Implicit surface modeling in computer graphics is a powerful technique for representing smooth and organic shapes. Skeletal elements of an implicit surface blend to create a smooth, seamless skin which exhibits desired properties for animation such as squash and stretch. Because of their high computational cost to render, implicit surfaces have not been used extensively in the real-time graphics domain. This thesis discusses the problems and some solutions in the application of implicit surfaces to the domain of interactive character animation. A design process for an implicit surface-based character is proposed, from the modeling and texturing stages to animation and rendering.
by Kenneth Bradley Russell.
S.M.
Murakami, Regina Keiko. ""Novos materiais magnéticos para imãs de alta performance"." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-14022006-182556/.
Full textThe aim of the present work was to develop new improved magnetic materials suitable for permanent magnets. Two kinds of materials were studied: (Nd,Sm)5(Fe,MT)17 based materials, were MT is a transition metal and, (Nd,Pr)FeB nanocrystalline materials (exchange spring magnets) with TiC additions. The 5:17 alloys were melted in an arc melting furnace followed by a long annealing (at least 30 days). We tried to improve the magnetic properties by means of chemical substitutions (Ti, Co, Mn, etc.) and/or by addition of interstitial atoms of deuterium or nitrogen. The samples were characterized by means of thermomagnetic analysis (TMA), low temperature magnetometry, X ray and neutron diffraction, and Mössbauer spectroscopy. The main results were: a) increase of Tc temperature (up to 70 ºC) and; b) determination of interstitial sites for deuterium. (Nd,Pr)FeB alloys with TiC additions were melted in an arc melting furnace, being processed in a melt spinner system. After the samples were heat treated at different temperatures. The promissing literature results for Nd2Fe14B+TiC were also obtained for Pr2Fe14B + TiC, but not for systems composed by Pr2Fe14B and Fe3B phases with TiC additions. However, good results were obtained in systems composed by Pr2Fe14B and α-Fe with TiC additions, with 30% increase on coercive field values Hc, and 15% increase on (BH)max.
Ferreira, Carlos Raimundo Frick. "Aspectos tecnológicos da fabricação de imãs permanentes fundidos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1997. http://hdl.handle.net/10183/17111.
Full textWith the purpose to optimize the magnetic properties of Alnico cast alloys, experiments under controlled solidificationaimig the production of oriented structures, have been realized. AIuminum ingots were used in the first tests as a model for the following experiments with Alnico 5 alloy. The melting conditions to obtain by unidirectional solidification using shell molding investment casting and, the Alnico 5 alloy 8% AI, 14% Ni, 24% Co, 3% Cu and Fe are discussed. The samples were analized by optical and electronic microscopy and by hysteresis loop, as well the efIects of chemical composition and heat treatment. The results indicate that the heat treatment has a strong influence on the magnetic properties of this alloy and the best results were found in the sample submeted under conventional heat treatment (TTC).
Hernandez, Christian Monroy. "Search for the Nuclear Localization Signal of Ime4." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/honors_theses/115.
Full textEl, Moumouhi Sanaa. "Architecture hybride IMS/P2P autonomique." Paris 6, 2012. http://www.theses.fr/2012PA066703.
Full textLänsimäki, Maija. "Suomen verbikantaiset in : ime -johdokset /." Helsinki : Suomalaisen Kirjallisuuden Seura, 1987. http://catalogue.bnf.fr/ark:/12148/cb41425492h.
Full textFlodberg, Marcus. "IMS Agility for Customer Responsiveness." Thesis, KTH, Maskinkonstruktion (Inst.), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-49622.
Full textThis master thesis is an analysis of the development process for three different node development organizations at a product development unit at Ericsson in Stockholm, called PDUIMS. This work is based on a mapping of the work flow, a lead-time analysis and a mapping of the wastes within the organization. The purpose of this master thesis is to make the development process more effective and thus shorten the lead-time. To maintain its competitiveness Ericsson is required to have quick customer responsiveness from a requirement to a developed product. Within the industry, Agile methods are the latest trend addressing this issue, including Lean Software Development. This master thesis has focused on analyzing and improving the development process. The work is based on a comprehensive theoretical framework where e.g. methods for lead-time analysis and Agile methods have been studied. Methods for identifying and analyzing different types of waste have also been studied. The data collection is primarily based on interviews with key persons. For the mapping of the work flow, existing models have also been studied. The lead-time analysis was also based on data from two internal databases, to create statistics. For the waste mapping, existing material was also studied. The result shows that there is a potential for improving the development process and thus shorten the lead-time. Several wastes have been identified within the four areas of Ericsson PDU IMS.The results have shown, inter alia, that a majority of the lead-time is spent on testing the products. The results also indicated that a large proportion of the developed features are never used by an end-customer. This study shows that Ericsson has a great potential to shorten the lead-time for developing products and thus increase its competitiveness. The conclusion for Ericsson is to continue with this type of investigation and mapping to continuously improve the development process. A recommendation for Ericsson is to use a tool were the status for the requirements and features are reported, which gives a total overview of the development process. Ericsson should also adopt a full scale Agile methodology.
Karas, Filip. "Marketingový průzkum v systému IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218203.
Full textNovotný, Roman. "Multimediální služby založené na IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218244.
Full textMartinek, Pavel. "Vývoj aplikací pro platformu IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218245.
Full textJablonski, Jan O. D. "Employment Status and Professional Integration of IMGs in Ontario." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/20685.
Full textMorton, Alison. "Higher order Godunov IMPES compositional modelling of oil reservoirs." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320187.
Full textSteinmeyer, Rebecca Hope. "Imaging of residual limbs using motion processing with IMUs." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/117455.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 82-83).
Accurate imaging of residual limbs is necessary for the design of well-fitting sockets for prosthesis wearers. Unfortunately, current methods of acquiring residual limb geometry are often expensive and inaccessible. A measurement method is proposed using coordinated IMUs to achieve residual limb imaging through motion processing. The IMUs are fixed to an object which traces the surface of the residual limb. Trajectories are calculated for each IMU, and a correction method is applied using all IMUs fixed to the instrument surface to mitigate measurement drift. The IMU trajectories are then used to generate a triangulated geometry to digitally represent the residual limb. This method was simulated to guide instrument design and provide insight on performance and measurement process. The eventual goal is a glove with IMUs at the fingertips which may be used by an untrained individual, who may simply wear the glove and lightly survey the surface of the residual limb with their hand to produce data which will then be used to generate a digital limb geometry. Using the results of the simulation, a design is proposed for the glove.
by Rebecca Hope Steinmeyer.
S.B.
Ghimire, Jenisha. "Role of Ime4 Protein in PHO Regulon of S.cerevisiae." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2037.
Full textZarzur, Antonio Maurício. "Métodos IMEX para integração temporal da Equação de Burgers." Instituto Nacional de Pesquisas Espaciais (INPE), 2018. http://urlib.net/sid.inpe.br/mtc-m21c/2018/04.26.15.43.
Full textComputational simulations are based on mathematical models developed for certain phenomena. The numerical solution of partial differential equations requires the choice of a method for time integration capable of stably simulating the evolution of a problem. There are methods that are more suitable to certain classes of phenomena, and therefore no single, general method can be applied to every problem. Both accuracy and stability of the chosen method must be taken into account, as well as its computational efficiency. Generally speaking, time integration schemes are categorized as either implicit or explicit. Each of these broad families presents pros and cons when solving certain classes of problems. A more modern approach, called IMEX, seeks to combine the advantages of each strategy to solve equations containing both fast and slow time-scales in a way that the slow terms can be solved explicitly, while the slow terms are solved implicitly. This results in a combination of different schemes with the goal of optimizing processing time by avoiding unnecessarily small time steps for the fast terms. This dissertation utilizes this approach in solving the viscous Burgers equation as a test case for such methods, analyzing their accuracy and computational performance. Burgers equation is one of the fundamental equations in fluid dynamics which essentially simplifies the Navier-Stokes equations by removing the pressure gradient terms and continuity equation, thus serving diverse practical applications. Because its exact solution is known, comparisons can be drawn between the accuracy of the proposed IMEX schemes and that of more traditional implicit or explicit schemes. Numerical experiments are performed to demonstrate their ability to simulate the problem with the same order of accuracy achieved by traditional means, while extending the stability conditions beyond the reach of purely explicit schemes.
Maya, Ruíz Laura Karen. "Afiliación y Clasificación de las Empresas ante el IMSS." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2021. http://hdl.handle.net/20.500.11799/111535.
Full textEl objetivo del presente trabajo de investigación, es explicar el procedimiento adecuado para la correcta afiliación y clasificación de riesgo de las empresas ante el IMSS. Para el desarrollo de este estudio se realizó una exploración sobre la historia de la Seguridad Social en México y las diversas reformas que ha tenido. Se usó una metodología basada en los principios de la investigación descriptiva y documental, así como en el método deductivo. Se analizó una amplia información bibliográfica disponible en documentos especializados y en los sitios web. La conclusión de esta investigación apunta a que para realizar una correcta afiliación y clasificación del grado de riesgo se considera indispensable que las empresas se sometan a un estricto análisis para ser clasificadas de manera correcta de acuerdo a la actividad que desempeñan, o en su caso, la de mayor riesgo, siguiendo los lineamientos establecidos en el artículo 196 del Reglamento de la Ley del Seguro Social en materia de Afiliación, Clasificación de Empresas Recaudación y Fiscalización (RACERF) y demás disposiciones normativas aplicables, cuya finalidad es cubrir correctamente las cuotas obrero-patronales y asegurar totalmente a sus trabajadores.
LÓPEZ, LÓPEZ VÍCTOR MANUEL. "LA EXPERIENCIA LABORAL EN EL ARCHIVO CLÍNICO DEL IMSS." Tesis de Licenciatura, UNIVERSIDAD AUTÓNOMA DEL ESTADO DE MÉXICO, 2021. http://hdl.handle.net/20.500.11799/111693.
Full textSperb, Elisabeth Cristina Lemos. "Acionamento do motor síncrono de imãs permanentes usando DSP." Universidade do Estado de Santa Catarina, 2011. http://tede.udesc.br/handle/handle/2088.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
This project presents the implementation of an experimental test bed to drive the permanent magnet synchronous motor (PMSM) using a digital signal processor. The main purpose of the project is to develop a test bed with flexible features enabling the implementation and evaluation of different motor control techniques. Initially the constructive characteristics of the PMSM are studied, as the selection of the proper materials of permanent magnets and the possibilities of physical arrangement in the rotor. Then the mathematical model is developed with the currents and voltage equation in the rotating reference frame. An analysis is made, consequently, of the vector control using the method by considering the rotor flux approach with constant torque control and the space vector pulse width modulation technique. Some techniques of sensorless control based on the motor mathematical model and artificial neural network are also presented. To demonstrate the flexibility of the bed developed, some algorithms for estimating motor position and speed, earlier simulated, were implemented with the algorithm drive system.
Neste trabalho é apresentada a implementação de uma bancada experimental para o acionamento do motor síncrono de imãs permanentes (MSIP) utilizando um processador digital de sinais. O objetivo principal do trabalho é desenvolver uma bancada com características flexíveis que permita a implementação e avaliação de técnicas de controle variadas. Inicialmente, são estudadas as características construtivas do MSIP, como o material que compõe os imãs permanentes e as possibilidades de arranjo físico no rotor. Em seguida é desenvolvido o modelo matemático com as equações de corrente e tensão no referencial girante. É analisado na seqüência, o controle vetorial, utilizando o método direto pelo fluxo de rotor considerando a abordagem com controle de torque constante, e a técnica de modulação por largura de pulso por vetor espacial. São também apresentadas algumas técnicas de controle sem sensor de posição/velocidade (sensorless) baseadas no modelo matemático do motor e em redes neurais artificiais. Algumas técnicas de controle sensorless foram simuladas e analisadas. Para comprovar a flexibilidade da bancada desenvolvida, alguns algoritmos de estimação da posição e velocidade do motor, anteriormente simulados, foram implementados juntamente com o algoritmo de acionamento.
Vinagre, Marcio de Pinho. "Otimização de projetos de motores sincronos a imãs permanentes." reponame:Repositório Institucional da UFSC, 1991. https://repositorio.ufsc.br/handle/123456789/111767.
Full textROSA, A. S. "Sistema para análise de marcha online baseado em IMUs." Universidade Federal do Espírito Santo, 2017. http://repositorio.ufes.br/handle/10/9560.
Full textConvencionalmente, a avaliação clínica da capacidade funcional da marcha de pacientes é subjetiva, com base na experiência do profissional clínico e informações descritivas sobre os padrões de movimento. Este trabalho descreve o desenvolvimento de um sistema para análise de marcha em tempo real, dotado de uma Interface Gráfica de Usuário, capaz de prover a estes profissionais informações quantitativas a respeito do desenvolvimento da marcha do paciente à medida que ela é executada por ele. Um módulo de armazenamento dos dados também foi desenvolvido para que o usuário possa registrar sua marcha durante atividades cotidianas, para que uma análise posterior seja feita pelo profissional clínico, através do próprio sistema.
Varol, Tolga. "Comparison of Consumer-Grade MEMS IMUs in UBI Context." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254392.
Full textVägtrafiken har många negativa socioekonomiska effekter på samhället. Ett viktigt problem är risken för dödliga olyckor. Risken, i stor utsträckning, minskar i utvecklade samhällen. Olyckorna är dock fortfarande allestädes närvarande. Det finns olika metoder för att minska olyckor som att förbättra infrastrukturen, utbilda bättre förare och incitament för förare att köra säkert. Det sistnämnda kan göras genom att analysera körbeteendet, och detta är möjligt med hjälp av sensorer som tröghetssensorer (IMU) utan att hindra integriteten. Försäkringsbolag närmar sig denna fråga via användningsbaserade försäkringar (UBI) -produkter, där premien dynamiskt beräknas genom att utvärdera föraren baserat på mätning av fordonsdynamik och annan kontextuell data. På grund av användningen av enheter som använder olika IMU-enheter är generalisering av uppmätta data en öppen fråga för korrekt utvärdering och rättvisa.Avhandlingen handlar om att tillhandahålla verktyg för att fylla utvärderingsgapet för IMUer för detta ändamål. Studien började med en undersökning med IMUer på marknaden. Med tanke på tekniska och ekonomiska aspekter valdes de mest lämpliga för utvärdering. Ett modulärt system kallat quad-IMU (QIMU) designades och utvecklades. En vald IMU (BMI160) inkorporerades i en QIMU och jämfördes med två ofta använda IMUer i två scenarier; hård inbromsning och statisk mätning med hjälp av raka digitala linjära accelerationsmätningar. Det genomsnittliga medelkvadratfelet (RMSE) visade att BMI160 överträffade de andra med ungefär en och två storleksordningar. QIMU visade sig vara en lovande ram som behöver undersökas mer för att utvärdera IMUer internt på ett snabbt, billigt och pålitligt sätt.
Valderas, Núñez Darwin Abdon. "Integration of sensor nodes with IMS." Thesis, KTH, Kommunikationssystem, CoS, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91678.
Full textAntalet användare som har fått tillgång till mobiltelefon under de senaste åren har varit enorm. Detta snabbt antagande är inte jämförbar med någon annan teknik. Dessutom innebär också detta att dessa användare har (åtminstone ibland) möjligheten till anslutning till andra och till avlägsna tjänster (avancerad data-och taltjänster, t.ex. videokonferenser, mobil TV, navigation och lokaliseringstjänster). Idags läget finns det inte längre en tydlig gräns mellan cellulära nätet och Internettjänster. Efter cellulära nätets utveckling från kretskopplad teknik till ett IP-baserat system, så håller dom cellulära systemem på att bli en del av Internet. Denna utveckling har blivit en utmaning för telekommunikationsföretag, som har varit vana att helt kontrollera sina nättjänster och fakturering. I ett försök att bevara denna traditionella roll för telekommunikationsföretag, har telekom-leverantörer infört IP Multimedia Subsystem (IMS). Ett system som syftar på att kunna göra telekommunikationsföretagen kapabla till att debitera användaren för alla dem olika tjänsterna som han har tillgång till via deras cellulära nät. Målet med ett sådant system är att förhindra telekommunikationsföretagen från att bli en "bit pipe" (dvs bara ge prissatt konnektivitet). En annan betydelsefull förändring som har direkt inverkan på detta projekt är den roll som mobiltelefoner kan utföra som gateways mellan sensornätverk och cellulära nät eller Internet. Detta har påverkat flera integrerade lösningar, såsom smarta hus begrepp, mobil hälsoövervakning och andra. Denna examensarbetes projekt är ett samarbete mellan Ericsson Research och Suunto, där vi har implementerat ett system för övervakning av en användares hjärtslag genom IMS. Systemet (har en särskild inriktning på sport, men det kan lätt anpassas för hälso-och sjukvård) är baserad på Internetworking sensornätverk, särskilt en hjärtfrekvens bälte som överför data trådlöst till en mobiltelefon eller en dator, som sedan skickar ut datan via IMS-nätverket. Tjänsten genomförs ovan på SIP Presence service. Projektet undersöker två alternativ. Den första är en mobil scenario; exempelvis där en person joggar utomhus, vid ett sådant tillfälle kommunicerar sensorn noden genom personens mobiltelefon, via IMS-nätverk med en övervaknings application. Det andra scenariot är mer statiskt och ger inte samma rörlighet, denna lösning passar bättre in på gym activiteter eller liknande. I denna implementering kommunicerar sensorn noden med en persondator som i sin tur publicerar uppgifterna via IMS. När uppgifterna har publicerats hos Presence and group management (PGM) servern. En applikations server som är uppskriven på att få friidrottarens närvaro tjänst kommer att meddelas. De människor som intresserade av att se denna data kommer att kunna göra det via någon webbläsare. Det kommer även att vara möjligt att arkivera och hämta datan för senare en användning men andra tillämpningar. Systemet är inte optimerad ännu för en verkligt realtid, eftersom Presence service inte erbjuder detta ännu som andra tekniker (RTP, SRTP eller XMPP) gör. Det finns en stor fördröjning skillnad mellan den mobila och fasta lösningen. Vi kan säga att den fasta lösningen är nästan ett realtids-system för överföring av lågfrekventa uppgifter som hjärtslag information. Detta projekt är en första strategi för en slutlig högpresterande system.
Otoupalík, Pavel. "Aplikace pro rezervaci vstupenek v IMS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218285.
Full textAraujo, Roberto Camara de. "Nitrogenação a plasma da fase Sm2Fe17 e obtenção de ímãs do Sm2Fe17N3 com SN depositado quimicamente." [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277145.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Fisica "Gleb Wataghin"
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Resumo: Neste trabalho são apresentados resultados acerca da nitrogenação a plasma d. c. da fase Sm2Fe17, bem como resultados da obtenção de ímãs permanentes do nitreto Sm2Fe17N3 aglutinados com Sn depositado quimicamente (bonded-magnet). Apresenta-se também a construção da câmara de plasma d. c. usada no trabalho. Para nitrogenação a plasma da fase Sm2Fe17 foi usada uma mistura de H2e N2, os nitretos foram obtidos a uma temperatura de 400 °C, pressão de 5 Torr e tempo de 5 horas, e a composição da mistura foi variada de 10 a 90 % de H2 . Esses nitretos foram caracterizados com Análise Termomagnética (ATM), Difratometria de Raios X (DRX), Metalografia Ótica, Microssonda Eletrônica e Espectroscopia Mössbauer. Os resultados mostram que, para atmosfera composta de até 40% de H2, obtem-se os seguintes nitretos: Sm2Fe17N8, Sm4Fe12N11 e Sm2Fe17N3. Quando a composição da atmosfera é superior a 50% de H2 há apenas a formação do nitreto Sm2Fel7N3 e o aparecimento de Ferro livre. Para fabricação dos ímãs permanentes foi usado o nitreto Sm2Fe17N3 obtido a partir de pó de Sm2Fe17 nitrogenado em forno resistivo em atmosfera de N2 a 400° C (Sistema Sieverts). Uma camada de Sn foi depositada sobre os grãos do nitreto usando um processo químico em meio aquoso. Os ímãs aglutinados com Sn foram orientados, prensados e sinterizados a plasma a 250° C usando atmosfera de H2 e Ar e caracterizados com DRX, Microscopia Eletrônica de Varredura e Medidas de Magnetização. Os resultados indicam que a quantidade de Sn depositado é muito pequena, evitando a formação de fases indesejáveis. Não se observa a formação de óxido nas amostras, o que indica que a sinterização por plasma é eficiente para remover o O2. Os ímãs obtidos apresentaram boas propriedades magnéticas
Abstract: In this work we present the results about dc plasma nitrogenation of the Sm2Fe17 phase, as well as the preparation of permanent magnets using Sm2Fe17N3 bonded with chemically deposited Sn (bonded-magnet). We also present the construction of the dc plasma chamber employed in this work. The plasma nitrogenation was performed using a mixture of H2 and N2 at a temperature of 4000 C, pressure of 5 Torr and process time of 5 hours. The plasma composition was changed from 10% to 90% of H2. Those nitrides were characterized by Thermomagnetic Analisys (TMA), X-Ray diffractometry (XRD), Optical metallography, Scanning Electron Microprobe and Mössbauer spectroscopy. The results show the formation of the nitrides Sm2Fe17N8, Sm2Fe17N11, and Sm2Fe17N3, for a H2 concentration below 40%. If the hydrogen concentration is equal or higher than 50%, it is observed only the formation of the nitride Sm2Fe17N3 and of pure Fe. To produce the permanent magnets we used the nitride Sm2Fe17N3 obtained from Sm2Fe17 powder nitrogenated in a resistive oven with nitrogen atmosphere and at temperature of 400 0C (Sieverts system). A layer of Sn was deposited on the nitride grains using a chemical process in an aqueous solution. The magnets were oriented, pressed and plasma sintered in an atmosphere of H2 and Ar at 250 0C, and then characterized by XRD, scanning electron microprobe and magnetic measurements. The results indicate that the amount of deposited Sn is very small, so avoiding the formation of undesirable phases. We did not observe oxidation in our samples, indicating that the sintering process was efficient in removing O2. The obtained magnets presented excellent magnetic properties
Doutorado
Física
Doutor em Ciências
Oliveira, Mara Cristina Lopes de. "Preparação de ímas HDDR e ligas de Pr-Fe-Co-B-Nb-M (M=Al, P, Cu, Ga e/ou Gd) e caracterização de suas propriedades magnéticas e resistência à corrosão." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-21092009-103331/.
Full textHDDR process has attracted great interest for producing polymer- bonded rareearth based magnets. It presents commercial advantages when compared with conventional sintered magnets owing to easy and low cost manufacturing. With the development of anisotropic powders using praseodymium, the expectations about this process grow e also the need for studying new compositions and alloy additions. In this work the magnetic properties of polymer-bonded magnets prepared with PrFeB magnetic alloys using HDDR process have been studied. Pr14FebalCo16B6Nb0,1 was used as the reference alloy Phosphorus, copper, aluminium, galium and gadolynium additions have been performed to increase the magnetic properties of the reference alloy. The microstructural characterization of the magnets has been carried out through optical microscopy and SEM. The complex microsctructure influences the electrochemical behavior of the magnetic alloys. The literature about this subject is scarce. Thus, the corrosion resistance of the different alloys prepared during this work was evaluated using electrochemical impedance spectroscopy and potentiodynamic polarization curves. A correlation between the microstructural features and the electrochemical behavior of the alloys has been established. The results showed that phosphorus and aluminium additions up to 1.0wt% had a beneficial effect on the magnetic properties and corrosion resistance of the alloys. Copper additions, on the other hand, strongly diminished the magnetic properties of the reference alloy.
Ковальчук, Віктор Миколайович. "Захист населення від небезпек пов’язаних з вибухонебезпечними предметами." Thesis, Національний університет кораблебудування імені адмірала Макарова, 2018. http://hdl.handle.net/123456789/5321.
Full textКовальчук, Віктор Миколайович. "Захист населення від небезпек пов’язаних з вибухонебезпечними предметами." Thesis, Національний університет кораблебудування імені адмірала Макарова, 2018. http://hdl.handle.net/123456789/5317.
Full textForghany, Saeed. "Impes modeling of volumetric dry gas reservoirs with mobile water." Texas A&M University, 2003. http://hdl.handle.net/1969.1/256.
Full textAlpadie, Irene, and Eva Karlsson. "Ett IT-verktygs användbarhet inom hemtjänsten : en utvärdering av IMIS." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1379.
Full textirene.alpadie@karlshamn.mail.telia.com
Abdala, Ivanilde Maria de Rezende. "APLICAÇÃO DO ÍNDICE DE MOBILIDADE URBANA SUSTENTÁVEL (IMUS) EM GOIÂNIA." Pontifícia Universidade Católica de Goiás, 2013. http://localhost:8080/tede/handle/tede/2805.
Full textThe increasing concentration of the population in the cities resulted from a very rapid and uncontrolled urbanization process and the absence of public policies to regulate the indiscriminate use of private motorized vehicles has resulted, in the major Brazilian cities, in a significant increase of the number of vehicles and, hence in the deterioration of quality of urban life. The necessity of an urban planning that is able to better integrate the use and occupation of urban spaces and the mobility derived from them, has lead to many studies and research in order to develop indicators and indexes to measure the quality of life associated with the quality of mobility. Intending to do that Costa, 2008, developed the Index of Sustainable Urban Mobility (I_SUM). This index evaluates qualitatively and qualitatively many aspects belonging to the concept of mobility, including the essential scenarios social, economic and environmental. This study aims the applications of the index in Goiania (GO) city, in order to make a diagnosis of the urban mobility conditions in the city in the light of this methodology and offer subsidies to the city decision- makers referring to implementation and monitoring of public policies to promote the sustainable urban mobility and hence the quality of urban life. Results of the study indicate that the city it is still far from to reach a high level of sustainable mobility (1,0), but despite of its not very satisfactory index (0,658), the value indicates that the city it is in the track towards the principles of sustainable urban mobility.
A concentração cada vez maior da população nas cidades, resultado de um processo de urbanização rápido e descontrolado e a ausência de políticas públicas que disciplinem o uso indiscriminado do veículo motorizado individual, tem resultado, na maioria das cidades brasileiras, em aumento significativo do número de veículos. Resulta também na consequente deterioração da mobilidade e da qualidade da vida urbana. A necessidade de um planejamento que integre melhor o uso e ocupação do espaço urbano e a mobilidade decorrente tem levado a estudos e investigações na busca de indicadores e índices capazes de medir a qualidade de vida da população associando-a à qualidade da mobilidade. Nesta direção foi desenvolvido por (Costa 2008), o Índice de Mobilidade Urbana Sustentável IMUS, o qual avalia quantitativamente e qualitativamente vários aspectos pertinentes à mobilidade, incluindo os cenários essenciais social, econômico e ambiental. Esta dissertação objetiva a aplicação deste índice na cidade de Goiânia (GO) de forma a oferecer um diagnóstico das condições de mobilidade na cidade à luz desta metodologia. A partir da avaliação do desempenho de cada indicador, também objetiva oferecer subsídios à tomada de decisão dos gestores públicos no que se refere aos processos de formulação, implantação e monitoramento de políticas públicas com vistas à promoção da mobilidade urbana sustentável e consequentemente da qualidade de vida na cidade. Os resultados indicam que embora ainda distante de alcançar níveis de sustentabilidade plenamente satisfatória (próximo de 1,0), o valor calculado (0,658) sugere, entretanto, que a mobilidade em Goiânia começa a trilhar, mesmo que de forma ainda tímida, os princípios da sustentabilidade.
Rokhzadi, Arman. "IMEX and Semi-Implicit Runge-Kutta Schemes for CFD Simulations." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37957.
Full textSilva, Wander Gonçalves da. "Acionamento do motor sincrono a imãs permanentes: tecnicas de comando." reponame:Repositório Institucional da UFSC, 1989. https://repositorio.ufsc.br/handle/123456789/111544.
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