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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.
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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://nbn-resolving.de/urn:nbn:de:bvb:20-opus-136860.
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Barnes, 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.
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Barnes, 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.
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Tableau d’honneur de la Faculté des études supérieures et postdoctorales, 2010-2011Deux 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.
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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.
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L’identification des efforts vibratoires agissant sur les structures et la détection des défauts à partir des mesures opérationnelles sont des sujets importants dans des projets académiques et industriels. Le choix de l’outil ou de la méthode utilisée dépend de la bande de fréquences d'étude puisqu’il existe des approches appropriées pour chaque domaine fréquentiel. Une méthode énergétique appelée la méthode énergétique simplifiée (MES) est utilisée pour prédire la répartition de la densité d'énergie vibroacoustique en moyennes et hautes fréquences. L'objectif de ce mémoire est d'étendre cette méthode pour résoudre les problèmes vibro-acoustiques inverses pour identifier d'une part les sources de vibration et d'autre part pour détecter les défauts. La formulation MES inverse (IMES) est numériquement validée pour des systèmes continus basés sur le couplage tel que le cas d’un système comportant plusieurs plaques couplées et celui d’un système composé d’une cavité acoustique couplée avec une plaque. En plus, une nouvelle méthodologie numérique est proposée, pour étendre cet outil d'identification IMES pour la détection des défauts. Une analyse paramétrique est effectuée pour le cas d’un modèle présentant des défauts afin de tester la robustesse et l’efficacité de cette approche. Finalement, une étude expérimentale est effectuée pour valider la technique IMES à fin d'identifier et localiser les charges exercées pour plusieurs cas, et détecter les défautsThe 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
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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.
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Les éléments génétiques mobiles contribuent grandement à la diversité et à l’évolution des génomes bactériens par le biais du transfert horizontal. Parmi eux, les éléments intégratifs conjugatifs (ICE) codent leur propre excision, leur transfert par conjugaison et leur intégration. En revanche, les éléments intégratifs et mobilisables (IME) ne sont autonomes que pour leur excision et intégration et ne codent seulement que certaines des protéines/fonctions (oriT) dont ils ont besoin pour leur transfert conjugatif. Par conséquent, les IME ont besoin d’un élément conjugatif « helper » pour se transférer. Malgré leur impact sur le flux des gènes et l’évolution des génomes, la prévalence des ICE reste peu étudiée et seulement très peu d’IME avaient été identifiés au début de cette étude. De plus, bien que plusieurs méthodes de détection des ilots génomiques existent, aucune d’elles n’est dédiée aux ICE ou aux IME. Ce qui ne facilite pas l’analyse exhaustive de ces éléments. Le genre Streptococcus appartient au phylum des firmicutes. La quasi-totalité des streptocoques sont des bactéries commensales ou pathogènes de l’homme et d’autres animaux. Aussi, 2 espèces de streptocoques sont utilisées en tant que ferments lactiques lors la production de laits fermentés et divers fromages. Globalement, le genre streptocoques représente un groupe d’intérêt pour l’homme, l’étude du flux de gènes au sein de ces organismes et l’impact qu’il peut avoir sur leur mode vie est primordiale. Au cours de cette thèse, nous avons recherché les ICE et les IME dans 124 souches de streptocoques appartenant à 27 espèces en utilisant une base de données de référence comportant des protéines dites « signatures » d’IME et d’ICE (de leurs modules de conjugaison/mobilisation et d’integration/excision). Cette analyse exhaustive a permis l’identification et la délimitation de 131 ICE ou ICE légèrement dégénérés et 144 IME. Tous ces éléments ont été délimités, ce qui nous a permis de déterminer leur spécificité d’intégration dans les génomes. Au total, 17 spécificités d’intégration ont été identifiées pour les ICE dont 8 encore jamais décrites (ftsK, guaA, lysS, mutT, rpmG, rpsI, traG and ybaB/EbfC) et 18 spécificités pour les IME dont seulement 5 étaient connues chez les firmicutes. Les modules d’intégration des ICE codent soit une intégrase à tyrosine pouvant avoir une faible spécificité (1 famille d’intégrase) ou une forte spécificité (13 spécificités différentes), soit des intégrases à sérine seule ou en triplet (4 spécificités différentes), soit une transposase à DDE. Les IME codent soit des intégrases à tyrosine (10 spécificités différentes) soit des intégrases à serine seule (8 spécificités différentes). Les ICE ont été groupés en 7 familles distinctes selon les protéines codées par leur module de conjugaison. Les IME présentaient une très forte diversité au sein de leur module de mobilisation, empêchant ainsi leur regroupement en famille selon les gènes portés par ce module. Les analyses phylogénétiques des protéines signature codées par tous les ICE et les IME ont montré des échanges de modules d’intégration entre les ICE et les IME et de nombreux échanges entre les modules de mobilisation des IME. L’ensemble de ces résultats révèle la forte prévalence et l’extrême diversité des ICE et des IME au sein des génomes de streptocoques. Une meilleure connaissance et compréhension de ces éléments nous a incité à construire un outil informatique semi-automatisé de détection des ICE et des IME de Streptocoques ainsi que leurs sites d’insertionMobile 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
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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.
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El comercio exterior en la actualidad ha sufrido muchos cambios debido al internet, las aplicaciones móviles y la globalización entendida como un movimiento extendido y no exclusivo a aquellas naciones consideradas de primer mundo.
El Perú no ha sido la excepción y prueba de ello son las empresas con ideas novedosas que están abarcando un nicho cada vez más grande en el mercado cambiando las reglas del juego en la manera como concebimos los negocios.
El propósito de nuestro proyecto es trazar un camino a una nueva solución en la forma en que entendemos el comercio exterior en el Perú, demostrando que podemos ahorrar tiempo y dinero a nuestros usuarios para que puedan ser más productivos y tomen mejores decisiones en los negocios.
Durante nuestra investigación nos sumergimos en el mundo de las importaciones y exportaciones para entender lo que impulsa a los empresarios, cómo recopilan información acerca de los distintos proveedores, cómo administran su tiempo y que tan satisfechos están sobre cómo funcionan las cosas actualmente.
Descubrimos que existe un mercado en el cual podemos enfocarnos, con 50,000 compañías que se beneficiarían de nuestro modelo de negocio alcanzando un 2% de participación del mercado en el primer año de operaciones.
Por medio de las encuestas, proyecciones y cálculos financieros concluimos que IMEX será un servicio muy requerido por la base de usuarios porque ofreceremos practicidad, accesibilidad, una buena administración de relaciones con los clientes y una solución innovadora a todo empresario que valora su tiempo y dinero.Modern 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.
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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/.
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Thesis (B.S.)--California Polytechnic State University, 2009.Project advisor: Unny Menon. Title from PDF title page; viewed on Feb. 2, 2010. Includes bibliographical references. Also available on microfiche.
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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.
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The goal of this project was to analyze the IP Multimedia Subsystem (IMS) with respect to the interworking functionality between two or more IMS domains belonging to different operators. The thesis presents an overview of IMS, its purpose, the circumstances and the environment in which it has evolved, and a look into some of the challenges that lie ahead. Through careful examination of the history of the mobile communications and of IMS itself, the thesis attempts to give the reader a full and comprehendible understanding of what IMS is, what its purpose is, and why it came into existence. The thesis considers the different models of IMS interworking, as they are currently envisioned by the standardisation bodies and the telecom industry. This analysis aims to identify some of the problematic aspects of the IMS Interworking and to suggest concrete areas for further investigation, which will contribute to the future successful IMS development and deployment. The report looks into such aspects of IMS interworking as the DNS, different models for ENUM DNS resolution; security issues and technical challenges of security with respect to the network as a whole and some of the IMS network elements in particular, such as the DNS. This thesis also presents the findings of the authors, regarding the challenges of interworking between networks built to support different versions of the IP protocol. The thesis focuses on the areas of interest, mentioned above, as these have been identified as being of particular significance in connection with the further development of the IMS architecture.Målet 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.
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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.
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Knowles, Emily Katherine. "Noble Imps : Shakespeare's Child Characters." Thesis, University of Liverpool, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502257.
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This thesis explores the presentation of the boy characters in Shakespeare's Richard III, King John and Macbeth, examining their performance history on stage and screen and considering the ways in which elements of their characterisation have been emphasised or suppressed at various moments in history in order to reflect the prevailing image of childhood. It has, therefore, three areas of focus: an evaluation of the boys as they appear in the playtext which re-assesses the complex and varied dramatic functions of these often over-looked characters; an extensive investigation of the performance history of the three plays from the eighteenth to the twentieth century; and an examination of the shifting historical attitudes towards children and childhood which have shaped the production and reception ofthe plays. There are striking similarities between these three plays: all present noble or royal boys whose political and dynastic significance is set in sharp contrast to their immaturity and physical vulnerability, and in each case the death of the child signals the tyranny of the protagonist and sets in motion his downfall. Yet despite such parallels, the plays present varied depictions of boyhood, and this variation is reflected in the plays' stage history: each drama has proved particularly popular, or of special interest, during one specific historical period, and the transformations the plays have undergone in performance are revelatory of that era's particular ideal of childhood. For example, Colley Cibber's popular eighteenth-century adaptation of Richard III transformed the characters of the princes in the tower, expunging their Shakespearean precocity and accentuating their vulnerability. These alterations reflect both the heightened sentimentality which began to be associated with childhood during this period and also the increased emphasis on the affection between parents and children that accompanied the rise ofthe nuclear family. Never very popular on stage before or since, King John was an established favourite of the nineteenth century and the child Arthur was at the centre of its popularity. This thesis argues that Arthur's mildness, meekness, innocence and docility resonated with the Victorian image of the ideal child, particularly as it came to be presented in the fiction of writers and novelists such as Charles Dickens. It also examines the Victorian appetite for fictional deaths of children and situates Arthur's popularity in relation to this trend. Twentieth-century productions of Macbeth, in contrast, are reflective of a growing fear of 'evil' or criminal children. Late twentieth century visions of the play have increasingly emphasised children's potential for evil: Polanski's 1971 film included a dream sequence in which Fleance attempts to murder Macbeth, Adrian Noble's 1986 production doubled the actors playing Macduffs children with the apparitions conjured by the witches, effectively tainting the innocence of the Macduff 'babes' and implicating them in the evil that pervades the play. Finally Penny Woolcock's 1996 TV film Macbeth on the Estate cast 'weird children' as the witches, placing childhood at the root of the destruction at work in Macbeth. Thus this study demonstrates that the children of Richard III, King John and Macbeth have been a crucial factor in the performance history ofthese plays over the centuries: prevailing ideals of childhood have influenced both the production and reception of these plays, and an examination of the history of these dramatic boys reveals the extent to which concerns about childhood and children have found expression, and continue to find expression, through the performance of these varied and fascinating characters.
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Kutkina, Alena. "Ocenění společnosti IMOS Brno, a.s." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-73384.
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The aim of this thesis is to determine the market value of the company Imos Brno a.s. at 01th April 2010 in order to sell the company to an unknown investor. Thesis was divided into two parts, theoretic and analytic. The theoretic part describes the methodology procedure - strategic analysis, financial analysis, financial plan and pricing methods. The analytic section of this thesis contains all information relating to above mentioned company. Further the financial and assessment analysis is performed and on its basis the financial plan is created. In next step the incoming methods are applied. The conclusion presents the result company value and the methods evaluation.
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Nagy, 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.
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This thesis describes basic principles of IP Multimedia Subsystem, known as the IMS, and shows the possibility for design applications using IMS. Firstly, a generic architecture IMS as layer model divided into four logic layer with definition the interfaces and the main entities is described. The IMS is based on SIP and IP protocols. Then is the architecture of SIP with the main entities explained. Structure of packet, request and response method in the part of SIP is also described. After that, three network services, namely presence services, instant messaging services and push over cellular services are presented. For each services the figuration of their architecture and the basic definition of their main entities are shown. Moreover, the graphical diagrams of SIP signalization are depicted for these services. In the next chapter, the self implementation of services was designed, namely presence services and services for speech transmission with next secondary function as sending email with registration information of user. The project was designed as client - server application in the development studio SDS Ericsson 4.1. The client application was simulated as java application and also as an application for Symbian emulator. The process of client registration was performed with the help of ICP platform. Finally, the diagram of analysis communication client - server is displayed with the captured packets explanation by the help of network analyzer WireShark. The video files, which were specially created for this thesis showing presentations for presence services and sending email. The most important results are summarized in the end of this article.
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Ghimire, Jenisha. "Localization of Ime4 in Saccharomyces cerevisiae." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/honors_theses/12.
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One lesser-known but universal post transcriptional modification carried out in yeast and higher eukaryotes is the methylation of mRNA, as mediated by the Ime4 protein and its orthologs. Ime4 protein is essential for sporulation in yeast cells and for viability of higher eukaryotic cells. The precise locations of the Ime4 protein and the functions of the methylated mRNA are still largely unknown. Whereas Ime4 protein is believed to be exclusively nuclear in higher eukaryotes, we have observed the yeast Ime4 protein in the nucleus, in the cytosol and within cytosolic particles. These observations suggest that Ime4 could be a shuttling RNA binding protein, playing roles in the cytosol as well as the nucleus. As a first step to examining this idea, we tested the hypothesis that the punctuate cytosolic particles formed by Ime4 are P bodies. P bodies are transient aggregates of proteins and RNAs that form as a result of stresses such as glucose deprivation. This experiment was carried out using fluorescence microscopy using Ime4 tagged with GFP (green fluorescent protein) and the known P -body proteins Edc3, tagged with mCherry. We expected that if the proteins thus produced localized in the same place in the yeast cell, we could then deduce that Ime4 is present in P-bodies. We observed that Ime4 and Edc3 did not colocalize in the majority of cells, and thus concluded that the Ime4 granules are not P-bodies. However, our experiments showed instances of Ime4 signals near or around the P-bodies in some cells. Hence, the Ime4-containing aggregates are not likely to be P-bodies but could rather represent a different type of granule.
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Wendhausen, Paulo Antonio Pereira. "Tecnologia de produção de imãs SmCo5." reponame:Repositório Institucional da UFSC, 1990. https://repositorio.ufsc.br/xmlui/handle/123456789/157650.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro TecnologicoMade 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.
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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.
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The diploma thesis deals with open source implementations of IMS technology. The theoretical part describes the functioning of IMS and its architecture, including the protocols used, the process of registration and connection establishment, as well as potential security threats to IMS systems. Two open source IMS projects were selected, Open IMS Core and Project Clearwater, on which the work is focused. In its next part, the diploma thesis deals with the description of selected open source IMS projects, this part also includes a description of the implemented security of both projects and a detailed procedure of system installation with any necessary configuration. In its practical part, the diploma thesis focused on performance testing of selected projects using the Abacus 5000 hardware tester. First, initialization tests were performed, which verified the possibility of communication between the tester and the tested projects. Subsequently, it was possible to perform performance testing of selected projects. In performance testing, emphasis is placed on system stability, performance in the area of call set-up speed and response time of SIP messages and speed of user registration in the network, at different load levels. The systems have been tested for both call set-up and user registration. Part of the testing is also the implementation of the flood DoS inviteflood attack and the system's response to the increasing intensity of the attack. The last chapter is devoted to the comparison of selected IMS projects, where the test results are clearly presented. This chapter is partly based on publicly available information, such as the technical documentation of individual projects and possibly publicly available mailing lists. Part of the diploma thesis is also a laboratory task in which the student tries to work with Open IMS Core. The laboratory task focuses on the process of creating a user and his registration in the IMS network, establishing a call between individual users and internal routing in IMS networks. The task focuses mainly on signaling processes within the implemented tasks.
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Dohnálek, 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.
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This master thesis refers to a new technology in a mobil services IP multimedia subsystem. First, the theoreticl part, refers to the architectury of this technology and elementary protocols. Although it is real-time services, is nesessary to refer about the Quality of Services, that it ensures the condent transmition of data. The second, practisy part refers to a the development background SDS 4.0 FD1 from Ericsson ltd., that it is used develop aplications for IMS technology. It will be to develop the aplication , that it used to the IMS and it refers to the elementary function and comunication.
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Porubský, 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.
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In the first part of my master's thesis the network architecture of IMS (IP Multimedia Subsystem) is presented. The database of subscribers HSS (Home Subscriber Server) and SLF (Subscription Locator Function), as well as a SIP CSCF servers (Call Session Control Functions) process a SIP signalization and an AS application server performing services, etc. I focus on the registration of subscribers in the IMS network with a list of transmitted messages and description of each interface that is used in this network. The most important interfaces, which I described here, are Gm, Mw, Cx, Dx and Sh. Then I focused on security in IMS problems, which are divided into categories of access security and network security. After that is the implementation of IMS network in an open source Open IMS Core System considered under the Linux operating system. Here is the problem description from the actual system installation, through the configuration of all necessary elements of the network to the communication party itself. The communication analysis in the initial registration process and in subsequent communications is described. Finally I created laboratory exercises with a focus on the Open IMS Core System, where students learn about architecture and principle of networks based on IMS technology operation, with individual elements necessary for the operation of the network and their configuration. Students also test simple captured traffic analysis.
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Russell, Kenneth B. "IMPS : implicit surfaces for interactive animated characters." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/62343.
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Thesis (S.M.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1999.Includes 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.
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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/.
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O objetivo do presente trabalho foi desenvolver novos materiais magnéticos para ímãs de alta performance. Duas classes de materiais foram estudadas: materiais a base de (Nd,Sm)5(Fe,MT)17, onde MT é um metal de transição, e materiais nanocristalinos a base de (Nd,Pr)FeB com adições de TiC. As ligas (Nd,Sm)5(Fe,MT)17 foram preparadas por fusão em forno de arco e posteriormente foram tratadas termicamente por longos períodos (no mínimo 30 dias). Tentamos melhorar as propriedades magnéticas por meio de substituições químicas (Ti, Co, Mn, etc.) e/ou por introdução intersticial de deutério ou nitrogênio. As amostras foram caracterizadas via análise termomagnética (TMA), magnetometria de baixas temperaturas, difração de raios X e de nêutrons, e espectroscopia Mössbauer. Os principais resultados foram: a) aumento de Tc de até 70 º C; b) localização dos átomos de deutério na redecristalina. Ligas de (Nd,Pr) com adição de TiC foram preparadas por fusão de arco, sendo processadas via "melt spinning" e passando por tratamentos térmicos variados. Os promissores resultados na literatura para Nd2Fe14B+TiC foram obtidos também para Pr2Fe14B + TiC, mas não para os sistemas compostos pela fase φ e Fe3B com TiC. Porém, bons resultados foram obtidos em sistemas compostos pelas fases φ e αFe, com aumento de até 30% nos valores de campo coercivo Hc e aumentos de até 15% de (BH)max.The 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.
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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.
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Com o objetivo de se otimizar as propriedades magnéticas de ligas fundidas para imãs permanentes tipo Âlnico, foram realizadas experiências de solidificação controlada visando a obtenção de estrutura colunar orientada. Âs experiências iniciais foram feitas com Âluminio que serviu de modelo para as experiências com a liga Âlnico 5. Âpresenta-se urna breve revisão do estado da arte das ligas Âlnico, enfatizando-se as técnicas de fundição utilizadas na obtenção de imãs permanentes, policristalinose anisotrópicos. Descreve-se a técnica utilizada para a produção de imãs permanentes com base na liga Âlnico 5 com composição nominal 24% Co, 14% Ni, 8% AI, 3% Cu e balanço Fe. São abordadas as condições de fusão da liga, as análises químicas e os tratamentos térmicos realizados em várias amostras. Os imãs foram produzidos por solidificaçãounidirecional,em moldes cerâmicos do tipo casca obtidos pelo processo de microfusão. Âs amostras foram avaliadas através da obtenção das curvas de histerese magnética, microscopia ótica e eletrônica. Âvaliam-se os efeitos de composição, tratamento térmico submetido e características metalúrgicas da liga, nas propriedades magnéticas. Os resultados indicam que as propriedades magnéticas da liga são muito influenciadas pelo tratamento térmico. Os melhores resultados foram obtidos nas amostras que passaram pelo tratamento térmico convencional(TTC).With 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).
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Hernandez, Christian Monroy. "Search for the Nuclear Localization Signal of Ime4." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/honors_theses/115.
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Ime4 is the catalytic subunit of a conserved methyltransferase (MTase) complex found in yeast, S. cerevisiae. This complex is responsible for creating the RNA modification N6- methyladenosine (m6A), the most common post-transcriptional modification in higher eukaryotes. There is evidence to suggest that m6A is an important mediator of gene expression control within the cell and has been associated with a diverse array of phenotypic effects, notably as a conserved determinant of cell fate. The MTase complex is known to be a nuclear protein, the compartment where it is believed to carry out most of its methylation activity. Recently, the nuclear localization signals (NLS) of the subunits of the human MTase complex were experimentally identified, whereas the NLSs of the yeast MTase complex remain unknown. Here, we have experimentally identified the amino acid sequence 517RKYQEFMKSKTGTSHTGTKKIDKK540, located within the C-terminal region, as a putative bipartite NLS for Ime4.
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El, Moumouhi Sanaa. "Architecture hybride IMS/P2P autonomique." Paris 6, 2012. http://www.theses.fr/2012PA066703.
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Länsimäki, Maija. "Suomen verbikantaiset in : ime -johdokset /." Helsinki : Suomalaisen Kirjallisuuden Seura, 1987. http://catalogue.bnf.fr/ark:/12148/cb41425492h.
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Flodberg, Marcus. "IMS Agility for Customer Responsiveness." Thesis, KTH, Maskinkonstruktion (Inst.), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-49622.
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Detta examensarbete är en analys av utvecklingsprocessen för tre utvecklingsnoder på en produktutvecklingsavdelning inom Ericsson, kallad PDU IMS. Arbetet har baserats på en kartläggning av arbetsprocessen, en ledtidsanalys samt en kartläggning av de wastes som finns inom avdelningen. Syftet med arbetet är att effektivisera utvecklingsprocessen och därmed förkorta ledtiden. För att Ericsson ska vara ett konkurrenskraftigt företag krävs en snabb respons från kundkrav till färdig produkt. Inom industrin har det blivit vanligt att man använder sig av Agila metoder, bland annat Lean Software Development. Examensarbetet har fokuserat på att analysera och förbättra utvecklingsprocessen. Arbetet bygger på en grundlig förstudie där bland annat metoder för att mäta ledtider och Agila arbetsmetoder har undersökts. Även metoder för att identifiera och analysera olika typer avwastes har undersökts. Datainsamlingen har till största del baserats på intervjuer med nyckelpersoner. För att kartlägga arbetsprocessen har även befintliga utvecklingsmodeller studerats. Vid ledtidsanalysen har även data från två interna databaser använts, för att sammanställa statistik. För kartläggningen av de wastes som uppstår vid utvecklingsprocessen har även befintligt material studerats. Resultatet visar att det finns potential för att effektivisera utvecklingsprocessen och därmed minska ledtiden. Flera wastes har identifierats inom de fyra olika områdena inom Ericsson PDUIMS. Resultatet har bland annat visat att större delen av ledtiden används för testning av produkterna. Resultatet visade även att en stor del av utvecklade produkterna aldrig kommer till användning hos en kund. Denna studie visar att Ericsson har stor potential för att minska ledtiden för utveckling av nya produkter och därmed öka sin konkurrenskraft. Slutsatsen är att Ericsson bör fortsätta med denna typ av undersökning och kartläggning för att kontinuerligt förbättra och effektivisera utvecklingsprocessen. En rekommendation är att Ericsson bör använda sig av ett verktyg där all status för alla krav och features rapporteras, vilket ger en total överblick över utvecklingsprocessen. Ericsson bör även införa en Agile utvecklingsmodell i full skala.This 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.
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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.
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This master's thesis describes suggestion of an application designed for marketing research utilizing development environment of Ericsson company using services IMS and SIP. The essay examines the options offered by programming languages Java, PHP, of the database system MySQL, language XML and SIP messages. A creation of a server - client pair of applications used for marketing research was the main focus of this paper was. These applications can be used for distribution of questionnaires and their subsequent collection by the server, which allows for an output of statistics based on the acquired data. It is not necessary to work with all the applications, it is possible to filter based on one or more categories and only have the selected questionnaires sent. The questionnaire results will be shown in a form of straightforward table in the server’s console window. The XML language has been selected for the storing the questionnaires. All technologies and methods used are described within the essay. An integral part of the module is also the creation of a database of questions, which has been created in the PHP programming language. MySQL has been used as a database server. The application output is an XML file, which can be used as an input for an IMS server. The results of this thesis are demonstrated using screenshots taken during the application testing.
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Novotný, 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.
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Submitted work describes IMS (IP Multimedia Subsystem) and focuses on services offered by this technology. In the theoretical part of the thesis is a detailed description of the IMS architecture, in the terms of its components and interfaces. Also a SIP protocol is described as the main signalling protocol, which represents the basis of the IMS architecture and RTP protocol that allows the transmission of multimedia data in real-time. Further, there are provided services that the IMS system brings. The practical part of the work describes the design and implementation of services within the IMS. It is a client-server service. Server part of the system is implemented as a SIP Servlet application. It has access to the MySQL database, which stores records of multimedia files. Client registered in the IMS network can communicate with the SIP servlet sending a request for information on such files. Following this communication, the client can play the file in his online ICP application, or download it into his PC and then play. To play and view multimedia fines is used JMF. The service is implemented in a development environment SDS Ericsson 4.1, which allows simulation of the IMS network.
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Martinek, 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.
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This master’s thesis is focused on the network architecture of IMS (Internet Protocol Multimedia Subsystem) and development an application for IMS. IMS architecture is the convergence of fixed and mobile networks. IMS enables rapid deployment of new multimedia services. In the first chapter is showed and described architecture IMS in four layers and block model of architecture IMS. Next chapter is focused to protocols, which are used in IMS. One of the most important protocols in network IMS is SIP. This protocol is analyzed in details. For development IMS platform application was used Ericsson SDS (Service Development Studio) in version 4.1. In SDS were created applications type of client and servlet. In this master’s thesis is also used development environment NetBeans. In NetBeans was created application for management of captured images. In the same development environment was developed application that shows the contents of a database. Last chapter is devoted to analyze individual parts of communication between client and servlet, and when client uses http to download image file.
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Jablonski, 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.
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This study investigated international medical graduates (IMGs), registered between January 1, 2007 and April 14, 2011, at the Access Centre for Internationally Educated Health Professionals in Ontario. By way of logistic regression in a cross-sectional design, it was found that permanent residents who were recent immigrants had lesser chances of being employed full-time at registration (baseline). By way of survival analysis in a cohort design, it was found that younger IMGs who have been in Canada less than 5 years and who have taken the Medical Council of Canada Evaluating Exam (MCCEE) have the greatest chances of securing residency positions in Canada or the US, whereas IMGs from Eastern Europe, South Asia and Africa have lesser chances. It was revealed that registered IMGs are a vulnerable population, and certain groups may be disadvantaged due to underlying characteristics. These groups can be targeted for specific interventions.
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Morton, 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.
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Steinmeyer, Rebecca Hope. "Imaging of residual limbs using motion processing with IMUs." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/117455.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.Cataloged 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.
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Ghimire, Jenisha. "Role of Ime4 Protein in PHO Regulon of S.cerevisiae." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2037.
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In the yeast Saccharomyces cerevisiae, the IME4 methyltransferase, interacts genetically with methyl binding protein, Pho92, to affect the expression of PHO regulon target genes. Cells mutant in IME4 or PHO92 show increases in the RNA abundance of PHO regulon target genes. The increase in the RNA abundance of the PHO regulon target genes is not additive in the cells double mutant in IME4 and PHO92. Hence, Ime4 and Pho92 interact in a single pathway in PHO regulon. Surprisingly, cells overexpressing IME4 and MUM2 shows increase in some PHO regulon target genes, indicating that IME4 affects the PHO regulon target genes through multiple mechanisms in different conditions. A promoter swap experiment revealed that one of the PHO regulon mRNAs that codes for phosphatase, PHO5, is a direct target of Ime4. Further experiments are required to examine whether the same is true for all PHO regulon mRNAs.
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Zarzur, 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.
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Simulações computacionais baseiam-se em modelos matemáticos desenvolvidos para certas classes de fenômenos. A solução computacional de equações diferenciais parciais requer a escolha de um método de integração temporal capaz de simular, de forma estável, a evolução do problema. Há métodos mais adequados para determinadas classes de fenômenos, não existindo um método geral que sirva adequadamente para todos os fenômenos. Deve-se levar em conta a acurácia e a estabilidade do método adotado, bem como seu desempenho computacional. De forma geral, os métodos de integração temporal são classificados como implícitos ou explícitos. Cada família apresenta vantagens e desvantagens na solução de determinadas classes de problemas. Uma abordagem mais recente, denominada IMEX, visa combinar as vantagens de cada estratégia para solucionar equações com escalas de tempo variáveis, de forma que os termos rápidos são resolvidos implicitamente e os mais lentos são resolvidos explicitamente. O resultado é uma combinação de diferentes esquemas que otimiza o tempo de processamento ao evitar passos de tempo desnecessariamente pequenos para os termos rápidos. Este trabalho propõe a aplicação dessa abordagem na solução da equação de Burgers viscosa, objetivando realizar um estudo de caso, analisando sua acurácia e desempenho computacional. A equação de Burgers é uma das equações fundamentais da dinâmica de fluidos e serve como uma simplificação das equações de Navier-Stokes sem a presença da equação de continuidade e dos gradientes de pressão, possuindo assim diversas aplicações práticas. Sua solução exata é conhecida, o que permite a comparação da acurácia dos métodos IMEX propostos com os tradicionais esquemas implícitos ou explícitos. Experimentos numéricos demonstram que os métodos propostos produzem soluções com o mesmo grau de acurácia dos métodos tradicionais, ao mesmo tempo em que estendem as condições de estabilidade além dos limites de métodos puramente explícitos.Computational 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.
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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.
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Tesis que aborda el tema de Afiliación y Clasificación de las
Empresas ante el IMSS.El 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.
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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.
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es dar a conocer y describir los factores que
determinan las labores de las personas que trabajan en el Área de Información
Médica y Archivo Clínico (ARIMAC) del IMSS Hospital General Regional No.
220 “José Vicente Villada” y los usuarios (derechohabientes).
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Sperb, 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.
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Previous issue date: 2011-08-05Coordenação 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.
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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.
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ROSA, A. S. "Sistema para análise de marcha online baseado em IMUs." Universidade Federal do Espírito Santo, 2017. http://repositorio.ufes.br/handle/10/9560.
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Previous issue date: 2017-03-30Convencionalmente, 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.
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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.
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Road traffic has many negative socioeconomic impacts on society. A key problem is the risk of deadly accidents. The risk, to a high extend is reduced in developed societies. However, the accidents are still ubiquitous. There are various approaches for reducing accidents such as improving the infrastructure, educating better drivers and incentivizing drivers for driving safe. For the latter, the way is to analyse driving behaviour and this is possible using sensors such as inertial measurement units (IMU) without hindering privacy. Insurance companies approach this issue via Usage Based Insurance (UBI) products, where the premium is dynamically calculated by evaluating the driver based on measuring vehicle dynamics and other contextual data. Due to utilization of devices that use different IMUs, generalization of measured data is an issue for correct evaluation and fairness.The thesis deals with providing tools for filling the evaluation gap of IMUs for this purpose. The study began with a survey involving IMUs in the market. Considering technical and economic aspects, the most suitable ones were selected for evaluation. A modular system called quad-IMU (QIMU) was designed and developed. A selected IMU (BMI160) was incorporated into a QIMU and compared to two widely used IMUs in two scenarios; harsh breaking and static measurement using raw digital linear acceleration measurements. Root mean square errors (RMSE) showed that the BMI160 outperformed the others by approximately one and two orders of magnitude, respectively. The QIMU showed to be a promising framework that needs to be explored further for evaluating IMUs in-house in a rapid, low-cost and reliable manner.Vägtrafiken 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.
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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.
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The number of users adopting cellular system technologies over the past years has been enormous. This rapid adoption is not comparable in any other technology. Additionally, this has meant that these users have (at least some of the time) the possibility of connectivity to others and to remote services (advanced data and voice services, such as video conferences, mobile TV, navigation, and location services). Increasingly there is no longer a clear boundary between the wide area cellular network and Internet services, as the wide area cellular network is evolving from circuit switched based technologies to an IP based system; hence these wide area cellular systems are simply becoming part of the Internet. This evolution has become a challenge for the telecommunication operators, who have been used to completely controlling their network services and billing. In an attempt to maintain this traditional role for telecommunication operators, telecommunication vendors have introduced the IP Multimedia Subsystem (IMS). A system designed to enable telecommunication operators to be able to bill the user for all of the different services accessed through the wide area cellular network. The goal of such a system is to prevent the telecommunication operators from becoming a "bit pipe" (i.e., simply providing "commodity priced" connectivity). Another relevant change that has direct impact upon this project is the role of mobile handsets as gateways between sensor networks and other networks (especially the wide area cellular networks or Internet). This has lead to integrated solutions, such as the smart house concept, mobile health monitoring, and others. This thesis project is a collaboration between Ericsson Research and SUUNTO, in which we have implemented a system for monitoring a user’s heart rate via IMS. The system (has a special focus on sports activities, but it could easily be adapted for health care) is based on internetworking sensor networks, specifically a heart rate belt that transmits data wirelessly, with the IMS network through a mobile phone or a PC. The implemented service runs on top of the SIP Presence service. This project examines two alternatives. The first is a mobile scenario, in which a person is jogging outdoors, in this setting the sensor node communicates via the person’s mobile phone, through the IMS network to a monitoring application. The second scenario is more fixed; such as a gym environment, where the sensor node communicates with a personal computer which in turn publishes the data via IMS. Once the data has been published to the Presence and group management sever, an application server subscribed to the athlete’s Presence service will be notified. The people interested in viewing this data will be able to see it through any web-browser. It will even be possible to archive, and download the data for later use by other applications. The system is not optimized yet for a truly real-time communication, as the Presence service does not offer this as other technologies (RTP, SRTP or XMPP) do. There is a big delay difference between the mobile and the fixed solution. We can say that the fixed solution is almost a real-time system for transmitting low frequency data as heart rate information. This project is a first approach to a final high performance system.Antalet 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.
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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.
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This master’s thesis deals description of the IMS (Internet Protocol Multimedia Subsystem) and shows the possibility for design applications that using services this system. The theoretical part of the thesis is focused on a detailed description of the IMS architecture, its key components and the SIP protocol that is main signaling protocol in the IMS. The practical part of the work describes the design, implementation and test of the system for reservation of tickets to cinema in the IMS. The project was created as client-server application in the development studio SDS Ericsson 4.1 FD1 with built-in IMS simulator. The client application is designed for mobile devices with support of the J2ME platform. The server part of the system is realized as SIP Servlet with access to the MySQL database. In the database are saves records about registered users, offered tickets and successful reservation. For easy work over MySQL database of the system for reservation of tickets was created the application for its administration in the Java programming language (Java SE 6). With the assistance of this application, the operators of system can add and erase the records about films, time projection and disburse tickets on the basis of knowledge of reservation ID. In the end of the work is realized SIP signaling analysis of the client registration to IMS and communication between the client application and the SIP Servlet.
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Araujo, 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.
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Orientador: Sergio GamaTese (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
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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/.
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O processo HDDR tem-se mostrado de grande interesse para a produção de ímãs à base de terras raras e polímeros. Apresenta vantagens comerciais quando comparado com os ímãs sinterizados convencionais, por exemplo, pela facilidade e menores custos de produção. Com o desenvolvimento de pós anisotrópicos, utilizando praseodímio, as expectativas em relação a este processo aumentam e, também, a necessidade de se estudar novas composições e adições. Neste trabalho, foram investigadas as propriedades magnéticas de ímãs moldados com resina, preparados com pós de ligas magnéticas de PrFeB, usando o processo HDDR. A liga magnética padrão utilizada foi a Pr14FebalCo16B6Nb0,1. Adições de elementos de liga como fósforo, cobre, alumínio, gálio e gadolíneo foram realizadas com o objetivo de melhorar as propriedades magnéticas do material padrão. A caracterização microestrutural dos ímãs foi realizada por microscopia óptica e MEV. A complexidade da microestrutura influencia o comportamento eletroquímico das ligas magnéticas. A literatura sobre este assunto é escassa. Assim, a resistência à corrosão das diferentes ligas preparadas ao longo do trabalho foi avaliada por espectroscopia de impedância eletroquímica e curvas de polarização potenciodinâmica. Foi estabelecida uma correlação entre as características microestruturais e o comportamento eletroquímico das ligas. Os resultados indicaram que adições de fósforo e alumínio em teores de até 1,0%p têm um efeito benéfico sobre as propriedades magnéticas e resistência à corrosão da liga padrão. A presença de cobre, por outro lado, diminui sensivelmente as propriedades magnéticas da liga padrão.HDDR 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.
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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.
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Ковальчук, Віктор Миколайович. "Захист населення від небезпек пов’язаних з вибухонебезпечними предметами." Thesis, Національний університет кораблебудування імені адмірала Макарова, 2018. http://hdl.handle.net/123456789/5317.
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Forghany, Saeed. "Impes modeling of volumetric dry gas reservoirs with mobile water." Texas A&M University, 2003. http://hdl.handle.net/1969.1/256.
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As the importance of natural gas as a resource increases, the importance of volumetric dry gas reservoirs with mobile water as the dominant gas reservoir types will also increase.
This research developed an efficient, user-friendly simulation program specifically designed to model two-phase flow of gas and water in these reservoirs. Since fluid compression and viscous forces are the dominant parameters that control fluid movement in a dry gas reservoir, we used the Implicit Pressure and Explicit Saturation (IMPES) formulation of flow equations in which neither gravity nor capillary pressure terms are pertinent. Therefore, the IMPES approach showed greater stability for all cases considered in this work. The developed simulator is a Visual Basic Application (VBA) code for which the users can obsereve the results in a pertinent Microsoft Excel file.
This program allows users to study the depletion behavior of volumetric dry gas reservoirs with mobile water as efficiently and accurately as is now possible in more expensive commercially available reservoir simulators. The program was validated by comparing the results with a well-recognized commercial reservoir simulator (CMG). The results of a battery of tests of this simulator matched very well with results of the commercial reservoir simulator for all tested schemes including different simulation plans; reservoir, grid and fluid data; and well configurations.
The observed applicability of the program suggests when dealing with volumetric dry gas reservoirs with mobile water there is no need to employ more expensive commercial reservoir simulators, as the program can reliably be used for any simulation scheme of this case. Furthermore, the program can later be applied in a more robust reservoir simulator as the part that handles dry gas cases.
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Alpadie, 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.
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Vi har utvärderat IMIS med hjälp av användbarhetstester tillsammans med hemtjänstpersonal verksamma på fältet. Målet med utvärderingen har varit att redovisa eventuella problem av användbarhetskaraktär och utifrån dessa ge förslag på förbättringar inför en vidareutveckling av systemet. Syftet med vårt arbete har varit att bidra med ökad kunskap när det gäller användbarheten för IT-verktyg inom hemtjänsten. IMIS (Integrated Mobile Information System) är ett interaktivt informationssystem, som studenter från IT-programmet vid Blekinge Tekniska högskola har utvecklat. Systemet är en prototyp ämnad att utvecklas vidare för bruk inom hemtjänsten. Det är tänkt att fungera som ett hjälpmedel för att underlätta samordning och kommunikation mellan vårdpersonal, göra information om vårdtagarna lättillgänglig för vårdgivarna, samt kunna ge en helhetsbild av vårdtagarna och deras personliga nätverk. Hemtjänst innebär att den som inte kan klara sig på egen hand på grund av sjukdom, handikapp eller åldersförändringar kan få hjälp i det egna hemmet med bl.a. städning och personlig omvårdnad av kommunalt anställda vårdbiträden. De senaste 20 åren har datoriseringen ökat markant och persondatorer har numera blivit en förbrukningsvara för en stor del av befolkningen. Nya produkter och system ställer dock ofta till med problem för användarna eftersom de inte alltid är anpassade till de tilltänkta användarnas färdigheter och behov. Mobila kommunikationslösningar inom hemtjänsten är ett relativt nytt koncept. Det unika med dessa lösningar är att de i första hand riktar sig till de som arbetar ute hos vårdtagarna. Från en communicator, som är en kombinerad trådlös telefon och handdator, kopplar personalen upp sig mot Internet där alla med behörighet kan ta del av informationen i samma stund som den skrivs, var de än befinner sig. Användbarhet kan definieras och göras mätbart på många olika sätt. Vi har valt att utgå från den internationella standarden för användbarhet ISO 9241-11, där vi fokuserar på ändamålsenlighet och tillfredsställelse. För att genomföra våra tester har vi använt metoden kooperativ utvärdering som är en vidareutveckling av metoden thinking-aloud. Metoden går i korta drag ut på att användare kommenterar högt under tiden de arbetar med uppgifter. Det är en empirisk och formativ utvärderingsmetod av mindre formell karaktär där observatören deltar i utvärderingen. Vi har även använt frågeformulär både före, under och efter de praktiska testerna. Testerna genomfördes tillsammans med sju fast anställda vårdbiträden inom hemtjänsten i Karlshamns kommun. De flesta av deltagarna hade ingen eller mycket liten datorvana. Alla testpersoner var dock positiva till systemet och ingen tyckte att systemet verkade speciellt svårt att använda. Efter att ha provat verktyget, tyckte de flesta att det var lättare än de hade fått intryck av från början. Sex av deltagarna trodde att de kunde ha nytta av de funktioner de hade fått prova på i arbetet, och de skulle även rekommendera att kommunen köpte in systemet till hemtjänsten. Alla tyckte att systemet var tilltalande och effektivt. Endast tre av deltagarna klarade av alla uppgifterna inom utsatt tid. Dessa tre hade alla lite eller medel datorvana. Det största problemet relaterat till systemet var deltagarnas förvirring i samband med att huvudfönstret inte laddades om när de klickade på en länk i menyn, vilket innebar att innehåll i huvudfönster och meny inte alltid stämde överens. Tillsammans med de teoretiska studierna har användbarhetstesterna gett oss ökad insikt om användbarheten för IT-verktyg inom hemtjänsten.irene.alpadie@karlshamn.mail.telia.com
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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.
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Previous issue date: 2013-03-22The 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.
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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.
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Numerical Weather Prediction (NWP) and climate models parametrize the effects of boundary-layer turbulence as a diffusive process, dependent on a diffusion coefficient, which appears as nonlinear terms in the governing equations. In the advection dominated zone of the boundary layer and in the free atmosphere, the air flow supports different wave motions, with the fastest being the sound waves. Time integrations of these terms, in both zones, need to be implicit otherwise they impractically restrict the stable time step sizes. At the same time, implicit schemes may lose accuracy compared to explicit schemes in the same level, which is due to dispersion error associated with these schemes. Furthermore, the implicit schemes need iterative approaches like the Newton-Raphson method. Therefore, the combination of implicit and explicit methods, called IMEX or semi-implicit, has extensively attracted attention. In the combined method, the linear part of the equation as well as the fast wave terms are treated by the implicit part and the rest is calculated by the explicit scheme. Meanwhile, minimizing the dissipation and dispersion errors can enhance the performance of time integration schemes, since the stability and accuracy will be restricted by these inevitable errors.
Hence, the target of this thesis is to increase the stability range, while obtaining accurate solutions by using IMEX and semi-implicit time integration methods. Therefore, a comprehensive effort has been made toward minimizing the numerical errors to develop new Runge-Kutta schemes, in IMEX and semi-implicit forms, to temporally integrate the governing equations in the atmospheric field so that the stability is extended and accuracy is improved, compared to the previous schemes.
At the first step, the A-stability and the Strong Stability Preserving (SSP) optimized properties were compared as two essential properties of the time integration schemes. It was shown that both properties attempt to minimize the dissipation and dispersion errors, but in two different aspects. The SSP optimized property focuses on minimizing the errors to increase the accuracy limits, while the A-stability property tries to extend the range of stability. It was shown that the combination of both properties is essential in the field of interest. Moreover, the A-stability property was found as an essential property to accelerate the steady state solutions.
Afterward, the dissipation and dispersion errors, generated by three-stage second order IMEX Runge-Kutta scheme were minimized, while the proposed scheme, so called IMEX-SSP2(2,3,2) enjoys the A-stability and SSP properties. A practical governing equation set in the atmospheric field, so called compressible Boussinesq equations set, was calculated using the new IMEX scheme and the results were compared to one well-known IMEX scheme in the literature, i.e. ARK2(2,3,2), which is an abbreviation of Additive Runge-Kutta. Note that, the ARK2(2,3,2) was compared to various types of IMEX Runge-Kutta schemes and it was found as the more efficient scheme in the atmospheric fields (Weller et al., 2013). It was shown that the IMEX-SSP2(2,3,2) could improve the accuracy and extend the range of stable time step sizes as well. Through the van der Pol test case, it was shown that the ARK2(2,3,2) with L-stability property may decline to the first order in the calculation of stiff limit, while IMEX-SSP2(2,3,2), with A-stability property, is able to retain the assigned second order of accuracy. Therefore, it was concluded that the L-stability property, due to restrictive conditions associated with, may weaken the time integration’s performance, compared to the A-stability property. The ability of the IMEX-SSP2(2,3,2) was proved in solving different case, which is the inviscid Burger equation in spherical coordinate system by using a realistic initial condition dataset.
In the next step, it was attempted to maximize the non-negativity property associated with the numerical stability function of three-stage third order Diagonally Implicit Runge-Kutta (DIRK) schemes. It was shown that the non-negativity has direct relation with non-oscillatory behaviors. Two new DIRK schemes with A- and L-stability properties, respectively, were developed and compared to the SSP(3,3), which obtains the SSP optimized property in the same class of DIRK schemes. The SSP optimized property was found to be more beneficial for the inviscid (advection dominated) flows, since in the von Neumann stability analysis, the SSP optimized property provides more nonnegative region for the imaginary component of the stability function. However, in most practical cases, i.e. the viscous (advection diffusion) flows, the nonnegative property is needed for both real and imaginary components of the stability function. Therefore, the SSP optimized property, individually, is not helpful, unless mixed with the A-stability property. Meanwhile, the A- and L-stability properties were compared as well. The intention is to find how these properties influence the DIRK schemes’ performances. The A-stability property was found as preserving the SSP property more than the L-stability property. Moreover, the proposed A-stable scheme tolerates larger Courant Friedrichs Lewy (CFL) number, while preserving the accuracy and non-oscillatory computations. This fact was proved in calculating different test cases, including compressible Euler and nonlinear viscous Burger equations.
Finally, the time integration of the boundary layer flows was investigated as well. The nonlinearity associated with the diffusion coefficient makes the implicit scheme impractical, while the explicit scheme inefficiently limits the stable time step sizes. By using the DIRK scheme, a new semi-implicit approach was proposed, in which the diffusion coefficient at each internal stage is calculated by a weight-averaged combination of the solutions at current internal stage and previous time step, in which the time integration can benefit from both explicit and implicit advantages. As shown, the accuracy was improved, which is due to engaging the explicit solutions and the stability was extended due to taking advantages of implicit scheme. It was found that the nominated semi-implicit method results in less dissipation error, more accurate solutions and less CPU time usage, compared to the implicit schemes, and it enjoys larger range of stable time steps than other semi-implicit approaches in the literature.
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Silva, 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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