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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Specialiojo ugdymo institucijų pedagogų požiūrio į organizacijos veiklą ir identifikavimosi su institucija raiška / Atitude of pedagogues of special education institutions towards activities of organization and expression of pedagogue identification with their organization

Šmaukštienė, Lėtutė 16 August 2007 (has links)
Darbe analizuojama specialiųjų ugdymo institucijų veikla. Pasirinktos temos sprendime keliami du probleminiai klausimai: 1) kaip specialiojo ugdymo institucijų pedagogai vertina organizacijos veiklą? ir 2) kokie identifikacijos su organizacija bruožai jiems būdingi? Sprendžiant šiuos probleminius klausimus tyrimo objektu pasirinktas specialiojo ugdymo institucijų pedagogų požiūris į organizacijos veiklą ir identifikavimasis su institucija. Tyrime keltas tikslas- nustatyti specialiojo ugdymo institucijų pedagogų požiūrį į organizacijos veiklą ir atskleisti identifikacijos su instituciją raišką. Siekiant šio tikslo formuluoti keturi tyrimo uždaviniai: 1. teoriniu aspektu išanalizuoti socialinės identifikacijos sampratą; 2. nustatyti pedagogų požiūrį į organizacijos veiklą; 3. atskleisti jų identifikavimosi su institucija raišką; 4. įvertinti tyrimo objekto kintamųjų tarpusavio ryšį ir jų sąsajas su socialiniais demografiniais veiksniais. Sprendžiant šiuos tyrimo uždavinius taikytas apklausos raštu metodas, korio pagrindą sudarė Edinburgo universiteto parengtas veiklos vertinimo klausimynas (Peterson, 2003) ir Osborne (1977) identifikavimosi su institucija teiginių skalė. Tyrimo duomenims apdoroti taikyti aprašomosios ir inferentinės statistikos metodai. Gauti tyrimo duomenys atsakė į keltus klausimus ir formuluotus uždavinius. Remiantis šiais duomenimis atskleista, kad specialiųjų vaikų auklėjimo ir globos namų pedagogai, išreikšdami savo požiūrį į... [toliau žr. visą tekstą] / The degree work analyzes activities, carried out by institutions of special education. The following two questions were analyzed in regard to the selected subject: 1) How pedagogues of special education institutions assess organization’s activities? 2) What peculiarities in reference to their identification with such organization are typical? To analyze these issues, the pedagogues’ attitude towards activities of the organization and their mutual identification were selected as the research subject. The objective of the research is to determine the attitude of pedagogues of special education institutions towards organization’s activities and to reveal their identification with such organization. To achieve the objective, four tasks were formulated as follows: 1) to analyze conception of social identification in theoretical aspect; 2) to determine the attitude of pedagogues towards organization’s activity; 3) to reveal expression of their identification with such organization; 4) to evaluate interrelationship of variables of the research subject as well as their link with social demographic factors. These tasks were dealt with the help of a questionnaire based on the Peterson’s questionnaire on organization evaluation, prepared at the University of Edinburgh (Peterson 2003) and Osborne’s measurement scale of academic identity (1997). Descriptive and interference statistical methods were applied for the processing of research data. The results of the research solved both... [to full text]
2

Validation of Linearized Flight Models Using Automated System-Identification

Rothman, Keith Eric 01 May 2009 (has links) (PDF)
Optimization based flight control design tools depend on automatic linearization tools, such as Simulink®’s LINMOD, to extract linear models. In order to ensure the usefulness and correctness of the generated linear model, this linearization must be accurate. So a method of independently verifying the linearized model is needed. This thesis covers the automation of a system identification tool, CIFER®, for use as a verification tool integrated with CONDUIT®, an optimization based design tool. Several test cases are built up to demonstrate the accuracy of the verification tool with respect to analytical results and matches with LINMOD. Several common nonlinearities are tested, comparing the results from CIFER and LINMOD, as well as analytical results where possible. The CIFER results show excellent agreement with analytical results. LINMOD treated most nonlinearity as a unit gain, but some nonlinearities linearized to a zero, causing the linearized model to omit that path. Although these effects are documented within Simulink, their presence may be missed by a user. The verification tool is successful in identifying these problems when present. A section is dedicated to the diagnosis of linearization errors, suggesting solutions where possible.
3

Reaction Time: Sports and Religion

Kirsch Hiltz White, Colleen M 01 October 2015 (has links)
Individuals attend to a variety of various stimuli on a daily basis and their brains decide what to attend to and what to tune out. How the brain chooses what is most important to pay attention to is decided with threat level, novelty, emotion, and other criteria. The current study looked at responses from 41 participants who identified high or low with University of Kentucky, Western Kentucky University, and/or Christianity. The participants where shown two images, the UK logo and either the WKU logo, an out-ofstate team logo, or a Christian symbol. Directly after the two images were presented, a dot appeared on the screen and the participants tapped a key on the keyboard to indicate on which side of the screen the dot was placed. The hypothesis stated that participants’ mean reaction time for identifying the side of the screen the dot was on when under a logo or a symbol with which the participants highly identify would be faster than the mean reaction time to a dot under logos or symbols with which the participant had low identification. However, results of this study did not show statistically significant differences in the mean reaction times of the participants.
4

Etude de systèmes d’auto-adaptation pour les systèmes de Communication en Champ Proche dits NFC (Near Field Communication) / NFC antenna Self Calibration

Dieng, Mouhamadou 17 June 2014 (has links)
La technologie NFC (Near Field Communication) est une nouvelle technique de communication basée sur la technologie RFID (Radio-Fréquence IDentification). La NFC utilise le couplage magnétique entre deux antennes afin de transférer les données et / ou l'énergie entre deux dispositifs électroniques. Elle exploite la fréquence de 13,56 MHz. En raison de la large gamme de dispositifs et d'applications, une définition de la géométrie de l'antenne et de ses paramètres électriques associés est très difficile. En effet, chaque dispositif présente des caractéristiques physiques différentes. En revanche, le circuit intégré (CI) de contrôle NFC est générique et indépendant d'une antenne où d'un dispositif. C'est pourquoi, chaque intégrateur associe le circuit intégré NFC avec une antenne pour chaque dispositif. Or le module de transmission du système NFC nécessite une bonne adaptation de l'antenne à son circuit intégré (IC). Actuellement, cette adaptation est effectuée à la main pour chaque dispositif selon un processus itératif chronophage. En outre, l'adaptation est effectuée une seule fois au moment de la conception du dispositif, quel que soit le mode de communication (lecteur, carte ou peer-to-peer) et à vide c'est-à-dire sans considérer l'influence du dispositif secondaire. Dans ce manuscrit, nous proposons une description détaillée des performances électriques des systèmes NFC. Ensuite un modèle électrique analytique complet et précis de l'antenne NFC est proposé. Enfin, nous développons une nouvelle technique d'adaptation automatique d'impédance afin d'optimiser les performances électriques dans la phase d'émission en termes de transfert d'énergie entre le lecteur et le transpondeur. / Near Field Communication (NFC) is a standardized communication technology derived from Radio Frequency Identification (RFID). NFC uses magnetic induction between two antennas in order to transfer data and/or energy between two electronic devices. NFC operating frequency is 13.56 MHz.Due to the wide range of devices and applications, a predefinition of antenna geometry and corresponding electrical parameters is difficult. In fact, each device shows different antennaphysical characteristics ; On the Other hand, the NFC control integrated circuit (IC) is generic and does not depend on antenna nor a device. Therefore, each integrator associates the NFC IC with a specific antenna for each device. Current NFC transmission modules require the antenna circuitry to be matched with the integrated circuit. Nowadays, the matching is performed manually using a time consuming iterative procedure for each device. Moreover, the matchingcan be done only once at the device design level, regardless of the communication mode (reader, card or peer-to-peer) and regardless of the secondary device influence on the primary antenna characteristics.In this manuscript, we propose a detailed description of the electrical performances of NFC Systems. Then an accurate and complete analytical electrical model of NFC antennas is proposed.Finally, we develop a new technic of automatic adaptation of the matching network in order to optimize the electrical performances in the transmission phase in terms of energy transfer from the reader to the transponder.
5

PROPOSTA DE METODOLOGIA RECURSIVA-ITERATIVA PARA IDENTIFICAÇÃO FUZZY DE SISTEMAS NÃO LINEARES ESTOCÁSTICOS EM MALHA FECHADA / PROPOSAL OF RECURSIVE-ITERATIVE METHODOLOGY FUZZY IDENTIFICATION OF SYSTEMS STOCHASTIC LINEAR CLOSED LOOP

VELOZO, Hugo Alves 20 February 2017 (has links)
Submitted by Maria Aparecida (cidazen@gmail.com) on 2017-04-17T12:44:32Z No. of bitstreams: 1 Hugo Alves Velozo.pdf: 5196080 bytes, checksum: 14e9edcc07c0256cf726b1d0f7eb9a02 (MD5) / Made available in DSpace on 2017-04-17T12:44:32Z (GMT). No. of bitstreams: 1 Hugo Alves Velozo.pdf: 5196080 bytes, checksum: 14e9edcc07c0256cf726b1d0f7eb9a02 (MD5) Previous issue date: 2017-02-20 / CAPES / Most methods of identifcation of closed-loop dynamic systems are developed for linear and deterministic systems. However, most closed loop systems are nonlinear dynamic systems. In addition, such systems are subject to stochastic perturbations. Considering this problem, this work presents a methodology for the identifcation of closed loop stochastic nonlinear systems. For this purpose, the proposed methodology uses a local approach to identify nonlinear dynamic systems, that is, a set of Box-Jenkins local models are used to identify the dynamics of the nonlinear system. In this work, the nonlinear system is modeled through a Takagi-Sugeno fuzzy inference system, where the parameters of the antecedent of the fuzzy rules are estimated with the fuzzy clustering algorithm GustafsonKessel and the consequent Box-Jenkins model parameters are estimated with the fuzzy fuzzy RIV (Refned Instrumental Variable) and fuzzy IVARMA (Instrumental Variable ARMA) algorithms. The proposed method is applied in the identifcation of a closed-loop nonlinear thermal plant. / A maioria dos métodos de identifcação de sistemas dinâmicos em malha fechada são desenvolvidos para sistemas lineares e determinísticos. Entretanto, a maioria dos sistemas operando em malha fechada são sistemas dinâmicos não lineares. Além disso, esses sistemas estão sujeitos a perturbações de natureza estocástica. Considerando essa problemática, este trabalho apresenta uma metodologia para identifcação de sistemas não lineares estocásticos em malha fechada. Para isso, a metodologia proposta utiliza uma abordagem local de identifcação de sistemas dinâmicos não lineares, ou seja, um conjunto de modelos locais Box-Jenkins são utilizados para identifcar a dinâmica do sistema não linear. Neste trabalho, o sistema não linear é modelado por meio de um sistema de inferência fuzzy Takagi-Sugeno, onde os parâmetros do antecedente das regras fuzzy são estimados com o algoritmo de agrupamento fuzzy Gustafson-Kessel e o parâmetros do modelo Box-Jenkins do consequente são estimados com os algoritmos RIV (Refned Instrumental Variable) fuzzy e IVARMA (Instrumental Variable ARMA) fuzzy. O método proposto é aplicado na identifcação de uma planta térmica não linear em malha fechada.
6

La permanence de l'objet : une analyse de l'identité spatio-temporelle et intersubjective des objets / Object permanence : an analysis of objects' spatiotemporal and intersubjective identity

Gabaret, Jim 12 November 2018 (has links)
Ce travail participe aux recherches contemporaines qui s'attachent à améliorer notre compréhension de ce que nous appelons les « objets d'expérience », et en particulier des objets ordinaires. Il s'arrête sur une dimension qui leur apparaît propre, leur permanence, c'est-à-dire leur continuité spatio-temporelle, telle que nous pouvons la constater et en faire usage dans l'expérience perceptive ou le discours, et leur identité intersubjective – en dépit des différentes visées qu'autrui et moi pouvons avoir sur eux. L'objet est pluriel, son identité, qui n'est pas simplement logique, manque de critères nets, mais cela ne peut remettre en question son existence, comme le voudraient les éliminativistes que nous affrontons. Mais les universalistes, les intellectualistes et tous les idéalistes sémantiques qui, à l'inverse, voient des objets partout, par notre seul pouvoir de les penser, confondent objet réel et objet de pensée. Nous défendons un réalisme contextualiste de l'objet ordinaire qui en précise l'existence dans les contextes où il fait sens d'en parler, et d'abord le contexte perceptif, puisqu'il semble définitoire des normes d'objectification et d'objectivation les plus courantes dans nos pratiques identificatoires, réidentificatoires et catégorisantes, de s'inscrire au sein de la perception et de l'action. Ce sont des processus plus ou moins simples cognitivement et plus ou moins répandus éthologiquement qui sont enjeu selon les cas. Cette pluralité implique d'en explorer les terrains, en particulier dans le plus jeune âge lorsque beaucoup des normes réglant notre saisie cognitive du réel sont en formation. C'est pourquoi notre investigation choisit rapidement de se faire philosophie de la connaissance afin de comprendre la genèse des objets ordinaires dont nous parlons, plutôt que d'essayer de dresser de façon abstraite une liste exhaustive de leurs critères d'identité. Nous défendons que la permanence de l'objet peut être comprise à trois niveaux, perceptif, social et logicolinguistique. Le bébé atteint ces niveaux d'objectivité par des concepts naturels (concepts affordantiels et modules innés, qui ont une inscription corporelle et un développement social), des concepts expérientiels (prototypiques et essentialisants, aidés par nos activités humaines de socialisation et d'attention partagée, qu'on trouve aussi dans le monde animal), et des concepts lexicaux, hérités de notre langue. C'est l'occasion de remettre en cause l'opposition trop facile entre l'inné et l'acquis, ou le nativisme et le constructivisme. À chacun de ces niveaux, il y a des raisons d'utiliser, en un sens non mentaliste mais naturaliste et fonctionnaliste, la notion de représentation, pour comprendre ce qui fait la transcendance de ces objets distaux, traités à partir des stimuli proximaux mais différents d'eux. On peut user d'un discours réaliste à leur sujet, sans présupposer que celui-ci se fonde sur des capacités cognitives rationnelles propositionnelles, synthétiques, inférentielles ou judicatives de haut niveau et nécessairement spécifiques à l'humain, mais sans céder non plus aux oppositions classiques entre réalisme indirect et réalisme direct, ou conceptualisme et non-conceptualisme. De même, on défendra, au-delà des débats entre continuisme et discontinuisme sur l'humain et l'animal, un émergentisme qui pense à la fois la continuité des espèces et leurs différences chaque fois propres dans leur rapport aux objets de leur environnement, tels qu'ils sont visés dans des normes naturelles et sociales. / The understanding of the ordinary objects of our daily experience implies a definition of spatiotemporal and intersubjective levels of permanence. This is due to the fact that these objects, whose existence we defend against eliminativism and mereological nihilism, can be said to endure or perdure, at least in our experiences and our discourses about them. This existence in time and space and between subjects of experience cannot be defined by mere logical features. That is why we choose a contextualist approach of objects, and study perceptual situations where identifications and categorizations occur, especially at the early stages of objectification and objectivation which babies are able to achieve. The newborn and the young child indeed need to gain object permanence, a phenomenon first described by Gestalt psychologists like Michotte and Piaget's school of developmental psychology, and which has been even more accurately studied by cognitive psychologists such as Elizabeth Spelke, Dominique Baillargeon, Susan Carey or Susan Gelman. We defend the thesis that three types of object permanence can be distinguished (perceptual, social and logical-linguistic). Object transcendence can be described as an emergent feature of these stages. Babies acquire these levels of objectivity through normal and universal phases of development, even though different cultural environments can influence rhythms of maturation and the intentional behaviors relating to objects, which children develop. To access ordinary objects, infants need natural concepts (affordantial concepts and innate modular abilities - quite common among animals -, which are embodied and developed through social stimulations), experiential concepts (prototypical and essentialist tendencies, stimulated by joint attention and social phenomena that also occur in the animal world), and inherited lexical concepts. Nativism and constructivism work together and a realist, naturalist and emergentist approach of our cognitions of objects and their representations (understood only as a functional ability to register distal objects from proximal stimuli) enables us to overcome classical oppositions between direct and indirect realism, conceptualism and anti-conceptualism, as well as the continuity-thesis and the discontinuity-thesis between human and non-human beings.

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