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1
Yildirak, Sahap Kasirga. "The Identificaton Of A Bivariate Markov Chain Market Model". Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/1257898/index.pdf.
Testo completoAbstract (sommario):
This work is an extension of the classical Cox-Ross-Rubinstein
discrete time market model in which only one risky asset is
considered. We introduce another risky asset into the model.
Moreover, the random structure of the asset price sequence is
generated by bivariate finite state Markov chain. Then, the
interest rate varies over time as it is the function of generating
sequences. We discuss how the model can be adapted to the real
data. Finally, we illustrate sample implementations to give a
better idea about the use of the model.
2
Lee, Young il Matthew 1976. "Identificaton of protein binding sites involved in AChR localization at the developing neuromuscular junction". Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103168.
Testo completoAbstract (sommario):
At the developing vertebrate neuromuscular junction (NMJ), the synaptic localization of the acetylcholine receptor (AChR) is regulated by a motoneuron-derived factor called agrin, and also requires an intracellular scaffolding protein called rapsyn. Rapsyn is thought to bind and cluster the AChR in the postsynaptic membrane; however, it is unclear where rapsyn binds on the AChR and if other proteins also contribute to receptor localization. To define the protein interactions that localize the AChR at the synapse, we utilized chimeric proteins consisting of CD4 fused to each of the AChR subunit large intracellular loops. First, by expressing the CD4-loop chimeras in cultured myotubes, we identify a motif in the beta subunit loop that is sufficient for agrin-induced clustering. Agrin induced rapid phosphorylation of a conserved tyrosine (Y390) in this motif and mutation of this site abolished clustering. Moreover, overexpression of the beta-subunit motif inhibited agrin-induced clustering of the endogenous AChR. Next, by co-expressing rapsyn and the CD4-loop chimeras in heterologous cells, we show that rapsyn clusters and cytoskeletally anchors the large intracellular loop of the AChR alpha, beta and &egr; subunits. This interaction was mediated by rapsyn binding to an alpha-helical domain conserved between the subunit loops, and occurred independent of agrin signaling in cultured myotubes. These findings suggest that at least two distinct interactions contribute to AChR localization at the NMJ: (constitutive) rapsyn binding to the alpha-helix of one or more subunit loops, and regulated binding of an additional protein to the beta-subunit motif. As the second interaction is phosphorylation-dependent, it likely serves as an important regulatory step in the agrin signaling pathway localizing the AChR at the synapse.In addition to its structural role, rapsyn is required for agrin-induced phosphorylation of the AChR. By expressing a series of rapsyn deletion mutants together with MuSK and AChR in heterologous cells, we find that deletion of just the rapsyn RING domain abolishes MUSK-induced AChR phosphorylation. Moreover, we find that the rapsyn C-terminal region is both necessary and sufficient for tyrosine kinase activation. Together, these findings suggest that rapsyn facilitates AChR phosphorylation by activating tyrosine kinases via its C-terminal domains.
3
Fourie, Jeanne. "Age dependent pupillary and cognitive responses to cholinergic drugs as a model for identificaton of future biological markers for Alzheimer's disease". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq40848.pdf.
Testo completo
4
Pryke, Sean Patrick. "Multiple independent identification decisions, a method of calibrating eyewitness identifications". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ63445.pdf.
Testo completo
5
Jiménez, Quezada Yuliana. "Identificación imaginaria, simbólica o fantasmática en adolescentes que extiman en facebook". Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2018. http://hdl.handle.net/20.500.11799/98766.
Testo completoAbstract (sommario):
La presente investigación explora la identificación imaginaria, simbólica y fantasmática en adolescentes extimada en facebook. El estudio tuvo como objetivo general comprender la identificación imaginaria, simbólica y fantasmática de los adolescentes internautas que extiman en Facebook; y como específicos identificar y analizar las formas en que se manifiesta la identificación imaginaria simbólica y fantasmática en adolescentes internautas masculinos y femeninos que extiman en facebook.
Desde una perspectiva cualitativa se les solicitó a seis adolescentes de entre 16 y 19 años usuarios de facebook proporcionaran información referente a sus publicaciones por medio de dos entrevistas semiestructuradas (una de forma directa y otra indirecta) además del análisis de la observación de los perfiles por parte de la investigadora. Para que desde la teoría psicoanalítica específicamente la tesis lacaniana sobre identificación, los resultados fuesen analizados a través de las técnicas referidas. Los resultados obtenidos en este estudio revelan que en las entrevistas indirectas los hombres muestran identificación imaginaria, por un lado, en la entrevista directa presentan identificación simbólica o fantasmática con respuestas más amplias. Por otro lado, las participantes mujeres mostraron mayor consistencia en los datos a través de las respuestas dadas, tanto en entrevista directa como en la indirecta, fluctuando entre las tres identificaciones. Respecto a la observación, se encontró que hay consistencia entre lo referido en la entrevista y lo publicado en sus perfiles.
Con base a la identificación que extiman los adolescentes en facebook, se advierte que aunque todos se mueven en las tres identificaciones en algún momento o aspecto de su extimidad publicada en facebook, las identificaciones se muestran de manera conjunta entre todos los participantes, identificación imaginaria en chistes, identificación fantasmática se extima en lo que se espera que los contactos hagan con las publicaciones de los adolescentes; y finalmente sobre identificación simbólica, se aprecia en las publicaciones que atraen la atención de los participantes, publicaciones que les molestan y sus publicaciones frecuentes.
Encontrando a los hombres con frecuencia en la identificación simbólica, mostrando como los significantes positivos para ellos son importantes a la hora de identificarse en ese gran Otro facebook. Y por otro lado las mujeres adolescentes extiman en facebook , identificándose desde lo fantasmático mostrando con esto el uso de esta red facebook un medio-modo en el que su deseo no llega al goce y es parado por esa la pulsión que implica para ellas el publicar.
6
Wood, Nathan D. "Mystic Identifications: Reading Kenneth Burke and “Non-identification” through Asian American Rhetoric". BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8482.
Testo completoAbstract (sommario):
Krista Ratcliffe’s term “non-identification” offers a version of identification that assumes identity is not always identifiable. As an attitude that fosters cross-cultural listening, non-identification asks us to listen to others from a place of “neutrality,” with “hesitancy,” “humility,” and “pause” in order to consider identity’s fluid nature (73). This thesis first argues that this term might also describe speaking strategies premised on non-identifiability. As I’ll show, an inventive non-identification would articulate some rhetorical strategies that neither “identification” nor “disidentification” currently articulate. However, rhetorical scholars need more theoretical and practical guidance for what this kind of speech looks like. So, this thesis also argues why, despite criticism to the contrary, the writing of Kenneth Burke offers an ideal account for inventive non-identification. Burke’s descriptions of the terms “synecdoche function,” the “mystic” and “poetic language” achieve the same effects as Ratcliffe’s non-identification, yet Burke describes these same effects from the perspective of the speaker. Following my re-reading of Burke, I ground the theory of inventive non-identification in a brief rhetorical analysis of Yan Phou Lee’s 1887 autobiography When I Was a Boy in China. By showing how this theory applies to Asian American rhetoric, I conclude that inventive non-identification has utility for the field of rhetoric more broadly.
7
Galarza, Surey M. "Complicating Taino identifications among Puerto Ricans rearticulations of the Taino trope within nationalist identification debates in Puerto Rico /". Diss., Online access via UMI:, 2007.
Cerca il testo completo
8
Toner-MacLean, Sally. "Emotional ramifications of adoption reunion : is there a predictable pattern of response?" Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=78193.
Testo completoAbstract (sommario):
This study examines the emotional responses of adoption reunion participants over time by a cross-sectional survey. A questionnaire was modeled after an existing reunion guideline, "Relationship Stages in Reunion". Ontario adoption reunion counselors in the public and private sectors use this guideline. This questionnaire was circulated by a Parent Finder's organization (22 respondents), and a provincial government organization (27 respondents). The hypothesis that there is a predictable pattern of emotional response in reunion was not supported. No significant differences were found between those that experienced reunion via either organization. There were some differences in the demographics. Both groups noted a high level of satisfaction with their reunion. This research would have been better tracked by a longitudinal study.
9
何耀祥 e Yiu-cheung Timothy Ho. "Biotyping in Penicillium marneffei". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31969732.
Testo completo
10
Little, Jane Kathryn. "The acquisition of gender stereotype component links". Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28105.
Testo completoAbstract (sommario):
Deaux and Lewis (1984) have proposed that stereotypes be viewed as linked components, each encompassing specific content domains (such as beliefs about appearance, preferences, occupations and traits). Each component has a masculine and a feminine version. Adults are able to use the stereotyped associative links between items in the same component and those between items in different components to make judgments about individuals' behaviors and characteristics based on minimal information. The present study examined the acquisition of these associative connections in the gender stereotypes of 6 to 10 year olds. Seventy-six children (38 boys, 38 girls), aged 6, 8 and 10 years, were asked to make a number of judgments about an individual's clothing, occupational aspirations, toy preferences, and personality traits based on a single piece of cue information (a masculine or feminine item from a component). The types of associative links that children could use in making of interpersonal judgments changed with age. The 6-year-old children were able to make stereotyped judgments about both masculine and feminine items within the same component but were only able to make between-component stereotyped judgments when items of their own-sex typing (i.e. masculine items for boys, feminine items for girls) were presented as cues. The older children were be able to make within- and between-component stereotypic judgments about both masculine and feminine items. The results supported the propositions of schematic-processing theory (Martin & Halverson, 1981) and demonstrated the value of the Deaux and Lewis (1984) component-link model as a heuristic for the study of complex cognitive structures.Education, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
11
Balaniuk, Remis. "Identification structurelle". Phd thesis, Grenoble INPG, 1996. http://tel.archives-ouvertes.fr/tel-00004974.
Testo completoAbstract (sommario):
De nombreuses techniques mathématiques utilisées en robotique reposent sur l'identification de paramètres ou sur la construction d'un modèle de type boîte noire (réseaux de neurones par exemple). Dans le premier cas on se donne une équation de mesure dont on ignore certains paramètres, mais pour laquelle on dispose de mesures experimentales du phénomène qu'on cherche à modéliser. Le problème revient alors à trouver les valeurs numériques des paramètres inconnus de l'équation pour obtenir un modèle du système. Cela revient en général à conduire un certain nombre d'expériences puis à faire de la minimisation au sens des moindres carrés pour trouver les paramètres qui expliquent au mieux les mesures obtenues. Dans le deuxième cas on utilise une technique d'approximation universelle permettant de modéliser la réponse du système. Pour cela on corrige l'ensemble des paramètres de l'approximateur à l'aide d'un algorithme adaptatif et d'un ensemble d'exemples. On dispose donc actuellement de deux grandes classes de méthodes : l'une faisant appel à de fortes connaissances préalables (la connaissance de l'équation de mesure) et l'autre ne faisant appel à aucune connaissance préalable. L'objet de cette thèse est de proposer une méthode intermédiaire: l'identification structurelle. Dans ce cadre on ne connaît plus la forme paramétrique de l'équation de mesure mais des informations a-priori sur sa forme générale. Par exemple, on sait que l'équation de mesure est formée d'un polynôme de fonctions quelconques d'une seule variable. Nous montrons qu'il est possible d'inférer cette équation de mesure dès lors que l'on choisit un protocole expérimental approprié et que l'on dispose d'un approximateur universel pour les fonctions d'une seule variable. L'ensemble des polynômes de fonctions trigonométiques multi-variables rentre dans le cadre juste évoqué. On peut donc appliquer cette méthode à de nombreux problèmes trouvés en robotique. On peut par exemple identifier le modèle géométrique d'un bras manipulateur ou trouver l'expression de la jacobienne reliant les mouvements d'un bras aux mouvements d'indices visuels dans une image vidéo. Le modèle fonctionnel obtenu peut être utilisé pour commander le système. C'est ainsi que nous avons réalisé un asservissement visuel avec cette méthode.
12
Balaniuk, Remis. "Identification structurelle". Phd thesis, Grenoble INPG, 1996. https://theses.hal.science/tel-00004974.
Testo completoAbstract (sommario):
Dans ce mémoire nous proposons une méthode originale d'acquisition de modèles : l'identification structurelle. Nous nous plaçons dans un cadre intermédiaire entre les méthodes de modélisation classiques et les méthodes basées sur l'apprentissage. Nous montrons que pour le cas d'une classe particulière mais assez générale de fonctions il est possible d'inférer automatiquement la forme d'équation qui représente au mieux un certain processus physique, évitant ainsi l'effort de caractérisation du modelé par le concepteur. L'acquisition des modèles est faite suivant un protocole expérimental dans lequel l'identification de paramètres est à des problèmes n'ayant qu'une seule dimension d'entrée, réduisant ainsi la quantité de données requise. Les modèles générés par la méthode sont facilement différentiables, améliorables et réutilisables. La méthode peut être particulièrement utile en robotique ou l'on rencontre souvent le type fonctionnel considéré
13
Aguilar, Antonio. "A Patient Identification System using RFID and IEEE 802.11b Wireless Networks". Thesis, KTH, Kommunikationssystem, CoS, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92014.
Testo completoAbstract (sommario):
The recent increased focus on patient safety in hospitals has yielded a flood of new technologies and tools seeking to improve the quality of patient care at the point of care. Hospitals are complex institutions by nature, and are constantly challenged to improve the quality of healthcare delivered to patients while trying to reduce the rate of medical errors and improve patient safety. Here a simple mistake such as patient misidentification, specimen misidentification, wrong medication, or wrong blood transfusion can cause the loss of a patient’s life. Misidentification of patients is a common problem that many hospitals face on the daily basis. Patient misidentification is one of the leading causes of medical errors and medical malpractice in hospitals and it has been recognised as a serious risk to patient safety. Recent studies have shown that an increasing number of medical errors are primarily caused by adverse drug events which are caused directly or indirectly by incorrect patient identification. In recognition of the increasing threat to patient safety, it is important for hospitals to prevent these medical errors from happening by adopting a suitable patient identification system that can improve upon current safety procedures. The focus of this master’s thesis is the design, implementation, and evaluation of a handheld-based patient identification system that uses radio frequency identification (RFID) and IEEE 802.11b wireless local area networks to identify patients. In this solution, each patient is given a RFID wristband which contains demographic information (patient ID number, ward number, hospital code, etc.) of the patient. A handheld device equipped with IEEE 802.11b wireless local area network connectivity and a RFID reader is then used by the medical staff to read the patient’s wristband, identify the patient, and access the relevant records of this patient. This work was carried out at the Department of Medical Physics and Bioengineering at the University College Hospital Galway (UCHG), Ireland and the National University of Ireland, Galway.Ökande de nya fokuserar på patientsäkerhet i sjukhus har givit en översvämning av nya teknologier och bearbetar sökande att förbättra det kvalitets av patient omsorg på peka av omsorg. Sjukhus är komplexa institutions vid naturen och utmanas ständig för att förbättra det kvalitets av sjukvården som levereras till prövas patient för att förminska klassa av medicinska fel och för att förbättra patient säkerhet. Här kan ett enkelt fel liksom patient misidentification, specimenmisidentification, fel läkarbehandling eller fel blodtransfusion orsaka förlusten av ett liv för patient. Misidentification av patient är ett allmänningproblem som många sjukhus vänder mot daglig. Patient misidentification är en av leda orsakar av medicinska fel, och den medicinska malpracticen i sjukhus och den har känts igen som ett allvarligt riskerar till patient säkerhet. Nya studies har visat att ett ökande numrerar av medicinska fel orsakas i första hand av motsatt droghändelser vilka orsakas direkt eller indirekt av oriktigt patient ID. I recognition av den ökande hot till patientsäkerhet är det viktigt att sjukhus förhindrar dessa medicinska fel från att hända, genom att adoptera ett passande patient ID system som kan förbttra på säkerhetsrutin. Fokusera av denna avhandling är designen, genomförande, och utvärderingen av ett patient IDsystem, som använder radiofrekvensidentifiering (RFID) och radion 802.11b, knyter kontakt för att identifiera patient. I denna lösning ges varje patient ett RFID-armband som innehåller demografikinformation (den patient personnumer, avdelning kod, sjukhuset kod, osv.) av patient. En handdator, som utrustas med trådlös IEEE 802.11b och en RFIDs ändare/mottagare, används därefter av den medicinska personal för att läsa armbandet för patient och för att identifiera patient. Detta arbete bars ut på avdelningen av medicinskfysik och bioteknik på Universitetssjukhuset Galway (UCHG), Irland och den Nationella Universitet av Irland, Galway.
14
Fuentealba, Cecilia. "Approche biométrique pour l'identification automatique des produits bois". Nancy 1, 2005. http://docnum.univ-lorraine.fr/public/SCD_T_2005_0133_FUENTEALBA.pdf.
Testo completoAbstract (sommario):
Au travers de problèmes récurrents des filières agroalimentaires et pharmaceutique, le concept de traçabilité est entré dans la vie courante. Les autres secteurs industriels, s'ils sont soumis à des contraintes de sécurité moindres, sont cependant concernés par le déploiement des technologies liées à ce concept. Ils cherchent par ce biais à faire face à l'exigence croissante des clients en terme de qualité, délais et personnalisation des produits dans un marché de plus en plus concurrentiel. Le contexte particulier de ce travail est lié aux industries du bois pour lesquelles l'éco-certification et l'amélioration des processus sont deux facteurs de motivation de mise en œuvre de la traçabilité. En effet, les caractéristiques des produits et processus de ces industries rendent complexes la synchronisation entre le flux de produits et le flux d'information, et par conséquent la capitalisation et l'accès aux informations pour tous les acteurs de la chaîne de transformation. Les problématiques soulevées sont donc : (1) Le manque de moyens d'identification automatique pour le suivi individuel des produits, les systèmes classiques codes-barres ou étiquettes électroniques montrant en effet leurs limites sur certaines parties du cycle de vie. (2) Le manque de système d'information capable, en ligne, d'offrir les informations nécessaires à la prise de décision, et capable, a posteriori, d'assurer les fonctionnalités liées à la traçabilité. Le travail de thèse aborde ces deux problématiques complémentaires. Dans un premier temps la mise en œuvre d'un capteur de Contrôle Non Destructif est proposée pour établir une identification biométrique des produits. Basé sur la technologie micro-ondes, le capteur permet l'acquisition de signaux représentatifs de la structure interne des bois. Ces signaux sont traités, puis servent d'entrée à un algorithme de reconnaissance de formes. Pour répondre à la seconde problématique, la proposition d'un modèle du système d'information est présentée. Centré sur le produit, ce modèle prend en compte toutes les transformations possibles qu'il est susceptible de subir. De plus, la modélisation met clairement en avant les différents systèmes d'identification qui pourront être utilisés tout au long de la vie du produitThe concept of traceability has been introduced to our everyday life due to recurrent problems in the agricultural and pharmaceutical industries. However, other industrial areas subject to minimum safety restrictions are also involved in the technologies related to this concept. Thus, they are trying to meet the growing demand of clients in terms of quality, delays and personalization of products in an ever-competitive market through traceability. The environment of this work is related to wood industries for which the ecocertification and the improvement of the production process performances are two motivating factors for the start up of traceability. In fact the characteristics of products and industry processes make difficult the synchronization of product flow with information flow and, consequently, the access to information for all actors of the transformation chain. The problem can be summarized in two points : (1) The lack of means of automatic identification, for an individual follow up of products. Commonly used systems like bar codes and electronic labeling show limitations in certain parts of the life cycle. (2) The lack of an information system able to offer in-line information necessary for decision making and able to ensure afterwards the usefulness associated to traceability. Then this work deals with these two complementary problems. First, the start up of a non-destructive control sensor is proposed for setting a biometrical identification of products. The sensor, based on microwave technology, allows the acquisition of representative signals of the inner structure of wood. These signals are treated and then delivered to an algorithm of pattern recognition. A proposition for an information system model is shown for answering the second problem. Such model focused on the product takes into consideration all transformations that may be performed during the fabrication process. Moreover, the modelling makes evident the different automatic identification systems that are possible to use through all the life cycle of the product
15
Brunot, Mathieu. "Identification of rigid industrial robots - A system identification perspective". Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/20776/1/BRUNOT_Mathieu_20776.pdf.
Testo completoAbstract (sommario):
In modern manufacturing, industrial robots are essential components that allow saving cost, increase quality and productivity for instance. To achieve such goals, high accuracy and speed are simultaneously required. The design of control laws compliant with such requirements demands high-fidelity mathematical models of those robots. For this purpose, dynamic models are built from experimental data. The main objective of this thesis is thus to provide robotic engineers with automatic tools for identifying dynamic models of industrial robot arms. To achieve this aim, a comparative analysis of the existing methods dealing with robot identification is made. That allows discerning the advantages and the limitations of each method. From those observations, contributions are presented on three axes. First, the study focuses on the estimation of the joint velocities and accelerations from the measured position, which is required for the model construction. The usual method is based on a home-made prefiltering process that needs a reliable knowledge of the system’s bandwidths, whereas the system is still unknown. To overcome this dilemma, we propose a method able to estimate the joint derivatives automatically, without any setting from the user. The second axis is dedicated to the identification of the controller. For the vast majority of the method its knowledge is indeed required. Unfortunately, for copyright reasons, that is not always available to the user. To deal with this issue, two methods are suggested. Their basic philosophy is to identify the control law in a first step before identifying the dynamic model of the robot in a second one. The first method consists in identifying the control law in a parametric way, whereas the second one relies on a non-parametric identification. Finally, the third axis deals with the home-made setting of the decimate filter. The identification of the noise filter is introduced similarly to methods developed in the system identification community. This allows estimating automatically the dynamic parameters with low covariance and it brings some information about the noise circulation through the closed-loop system. All the proposed methodologies are validated on an industrial robot with 6 degrees of freedom. Perspectives are outlined for future developments on robotic systems identification and other complex problems.
16
Avanzi, Lorenzo <1975>. "Dual Identification: When Identification in Organizational Contexts Can Harm". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1575/1/TESI_DOTTORATO_ULTIMA_CON_INDICEok.pdf.
Testo completo
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Avanzi, Lorenzo <1975>. "Dual Identification: When Identification in Organizational Contexts Can Harm". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1575/.
Testo completo
18
Ross, Stephen J. "Eyewitness identification rates in showups as a function of role of presenter". Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1285586.
Testo completoAbstract (sommario):
This study was designed to test for the effect of role of presenter during a showup (one-person lineup) and eyewitnesses' authoritarianism on identification rates. Specifically, this study addressed the question of whether or not eyewitnesses are more likely to identify a suspect as the perpetrator of a crime when they make their identifications to a police officer rather than a civilian, and whether authoritarianism interacts with presenter role. 169 participants witnessed a staged theft and were then asked to make an identification of a suspect in a showup. Interpretation of the results suggested that the presence of a police officer during a showup increases identification rates of the suspect. Also, a higher level of authoritarianism in the eyewitness and the presence of a police officer increase the confidence eyewitnesses have in their identification. Implications for law enforcement and future research are discussed. Acknowledgements: Special thanks to David Taylor, Emily Zumbaugh, KimberlyBolich, and Christina Waddups for their assistance with data collection.Department of Psychological Science
19
Gérardin, Pierre. "Détermination des champignons par une méthode informatique". Paris 5, 1988. http://www.theses.fr/1988PA05P062.
Testo completo
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Siorat, Catherine. "Techniques d'identification odonto-stomatologique en médecine légale". Bordeaux 2, 1990. http://www.theses.fr/1990BOR25089.
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Khamis, Atieh. "Utilisation du gène rpoB pour la taxonomie et l'identification des bactéries des genres Afipia, Bosea et Corynebacterium". Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX20685.
Testo completo
22
Leselbaum, Stéphane. "Logiciel d'aide à la reconnaissance des champignons". Paris 5, 1997. http://www.theses.fr/1997PA05P227.
Testo completo
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Grewe, Scott David. "Neuropsychological and personality features of learning disabled and emotionally handicapped children". Virtual Press, 1993. http://liblink.bsu.edu/uhtbin/catkey/862283.
Testo completoAbstract (sommario):
The present study was an attempt to differentiate between emotionally handicapped, learning disabled, and regular education children based on their responses to the Neuropsychological Symptom Inventory-Child Version, the Personality Inventory for Youths, and their parents' responses to the Personality Inventory for Children.Factor analysis of the NSI-Child Version revealed four unique factors, of which two were able to differentiate the regular and special education groups. No observable differences were noted between the two special education groups on the basis of their raw factor scores. Similarly, no differences were observed between the two special education groups on the basis of their responses to the PIY. Salient differences were observed on the PIC with the emotionally handicapped children reported to have pervasive emotional and behavioral problems in comparison to the mild cognitive/academic and behavioral difficulties of the learning disabled children.Results are discussed as they relate to previous research and future directions for study.Department of Educational Psychology
24
Eklund, Jonas. "Identifierings- och igenkänningssystem för markförband, lösningen för att undvika vådabekämpning?" Thesis, Försvarshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1172.
Testo completoAbstract (sommario):
Syftet med uppsatsen är att belysa möjligheter och begränsningar med olika tekniska system för att identifiera kontakter på stridsfältet, främst med avseende på att minska risken för vådabekämpningar. Uppsatsen skall också belysa om införande av tekniska system för identifiering av kontakter är den enskilt bästa metoden för att undvika vådabekämpningar. Syftet är att läsaren skall uppnå en förståelse för vad olika typer av system för identifiering kan bidra med för att minska risken för vådabekämpningar. Utöver detta belyses andra nackdelar och fördelar med de olika tekniska systemen förutom just inom området identifiering. Uppsatsen beskriver olika händelser där vådabekämpningar skett och kopplar dessa mot hur olika tekniska system eventuellt hade kunnat minska risken för att vådabekämpningen skulle ha skett. Uppsatsen beskriver också ett antal olika tekniska system för identifiering av kontakter på stridsfältet.The purpose of this essay is to shed light on possibilities and limitations regarding different systems for identification of contacts on the battlefield, mainly for the purpose of reducing fratricide. The essay will also shed light on if the introduction of systems for identification on the battlefield is the best one single method that will reduce fratricide. The purpose is that the reader will achieve an understanding of how different systems for target identification will reduce the risk for fratricide. In addition the possibilities and limitations of other systems in the field of combat identification will also be addressed. The essay describes different events where fratricide has occurred and connects these events with the possibilities and limitations of the identification systems described and how these systems could have reduced the risk for fratricide. The essay also describes different systems for target identification and combat identification.
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Ebadat, Afrooz. "On Application Oriented Experiment Design for Closed-loop System Identification". Licentiate thesis, KTH, Reglerteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158991.
Testo completoAbstract (sommario):
System identification concerns how to construct mathematical models of dynamic systems based on experimental data. A very important application of system identification is in model-based control design. In such applications it is often possible to externally excite the system during the data collection experiment. The properties of the exciting input signal influence the quality of the identified model, and well-designed input signals can reduce both the experimental time and effort. The objective of this thesis is to develop algorithms and theory for minimum cost experiment design for system identification while guaranteeing that the estimated model results in an acceptable control performance. We will use the framework of application oriented Optimal Input Design (OID). First, we study how to find a convex approximation of the set of models that results in acceptable control performance. The main contribution is analytical methods to determine application sets for controllers with no explicit control law, for instance Model Predictive Control (MPC). The application oriented OID problem is then formulated in time domain to enable the handling of signals constraints, which often comes from the physical limitations on the plant and actuators. The framework is the extended to closed-loopsystems. Here two different cases are considered. The first case assumes that the plant is controlled by a general (either linear or non-linear) but known controller. The main contribution here is a method to design an external stationary signal via graph theory such that the identification requirements and signal constraints are satisfied. In the second case application oriented OID problem is studied for MPC. The proposed approach here is a modification of a results where the experiment design requirements are integrated to the MPC as a constraint. The main idea is to back off from the identification requirements when the control requirements are violating from their acceptable bounds. We evaluate the effectiveness of all the proposed algorithms by several simulation examples.QC 20150126
26
Coymak, Ahmet. "Associations Of Religious Identification, Secular Identification, Perceived Discrimination, And Political Trust With Ethnic And Societal (national) Identification". Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610734/index.pdf.
Testo completoAbstract (sommario):
The current thesis extends research in the area of multiple social identities and identity conflict by focusing on both intergroup and intraindividual process underlying structures of identities, namely, religious, ethnic, and societal (national)
identifications. In addition, it examined the influence of political trust, and perceived discrimination the relationship between ethnic and societal identification for disadvantaged ethnic groups in Turkey. Two studies were conducted to evaluate the process of identity organization both inter group and in group. While, the first study addresses intergroup differentiations of these identities, second study focused on intraindividual process of these identities'structure. Supporting hypothesis stemming from Social Identity Theory and Optimal Distinctiveness Theory, political trust and perceived discrimination have roles of mediation in the relationship ethnic and societal identification, by contrast with secular and religious identities in the relationship. Results were discussed for their implications to politic context of the Turkey.
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Pozzulo, Joanna D. "Increasing the identification accuracy of child eyewitnesses with identification procedures". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0004/NQ27850.pdf.
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Pourmohammad-Namvar, Mehrzad. "Interaction entre identification et commande : identification pour la commande robuste". Grenoble INPG, 2001. http://www.theses.fr/2001INPG0004.
Testo completoAbstract (sommario):
Cette these presente les differents algorithmes optimaux qui identifient un modele nominal et quantifient l'erreur de modelisation dans les differentes topologies de systemes. Plus particulierement nous considerons la topologie de graphe, h , et 11. Notre approche est plutot dans le contexte de set-membership ou nous considerons les modeles rationnels et non-affines en les parametres. Ceci nous donne la possibilite d'identifier des modeles avec un ordre fixe et faible. Nous considerons surtout le cas ou le vrai systeme n'appartient pas a l'ensemble des modeles. Notre demarche est alors de trouver le meilleur modele ayant une distance minimale du vrai systeme et de trouver les bornes pire-de-cas pour l'erreur de modelisation. Ces distances sont exprimees dans les topologies de graphe, h et 11. Les algorithmes d'identifications sont bases sur la resolution des problemes d'optimisation convexes de type programmation lineaire (lp) ou inegalite matricielle lineaire (lmi). Nous adoptons deux strategies generales pour resoudre le probleme d'identification pour la commande. Dans la premiere strategie que nous appelons la methode simultanee, l'identification des parametres du modele et la quantification de l'incertitude sont realisees dans une seule etape, tandis que dans la deuxieme strategie (non-simultanee) l'identification du modele et la quantification de l'incertitude sont realisees dans deux etapes differentes. On demontre aussi que ces strategies sont applicables pour l'identification en boucle fermee ou l'objectif est de minimiser la distance (h ou 11) entre les fonctions de sensibilites nominale et reelle.
29
Xing, Shutao. "Structural Identification and Damage Identification using Output-Only Vibration Measurements". DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1067.
Testo completoAbstract (sommario):
This dissertation studied the structural identification and damage detection of civil engineering structures. Several issues regarding structural health monitoring were addressed.
The data-driven subspace identification algorithm was investigated for modal identification of bridges using output-only data. This algorithm was tested through a numerical truss bridge with abrupt damage as well as a real concrete highway bridge with actual measurements. Stabilization diagrams were used to analyze the identified results and determine the modal characteristics. The identification results showed that this identification method is quite effective and accurate.
The influence of temperature fluctuation on the frequencies of a highway concrete bridge was investigated using ambient vibration data over a one-year period of a highway bridge under health monitoring. The data were fitted by nonlinear and linear regression models, which were then analyzed.
The substructure identification by using an adaptive Kalman filter was investigated by applying numerical studies of a shear building, a frame structure, and a truss structure. The stiffness and damping were identified successfully from limited acceleration responses, while the abrupt damages were identified as well. Wavelet analysis was also proposed for damage detection of substructures, and was shown to be able to approximately locate such damages.
Delamination detection of concrete slabs by modal identification from the output-only data was proposed and carried out through numerical studies and experimental modal testing. It was concluded that the changes in modal characteristics can indicate the presence and severity of delamination. Finite element models of concrete decks with different delamination sizes and locations were established and proven to be reasonable.
Pounding identification can provide useful early warning information regarding the potential damage of structures. This thesis proposed to use wavelet scalograms of dynamic response to identify the occurrence of pounding. Its applications in a numerical example as well as shaking table tests of a bridge showed that the scalograms can detect the occurrence of pounding very well.
These studies are very useful for vibration-based structural health monitoring.
30
Shuaib, Ahmad. "Optimisation thermique de lasers à cavité vertical à base d’InP et reportés sur substrat silicium, pour des applications télécom". Rennes, INSA, 2011. http://www.theses.fr/2011ISAR0014.
Testo completoAbstract (sommario):
En tant que sources de lumière cohérente bas-coût, les VCSELS sont incontournables dans beaucoup de domaines dont celui des telecoms optiques. Cependant, des améliorations des propriétés des VCSELS sont indispensables notamment dans le domaine de la « fibre-vers-l’abonné » utilisant la technologie InP à 1,5 µm. En effet, ce domaine ne se développera qu’en remplaçant les lasers à émission par la tranche par des lasers VCSELs bas-coûts. Ceci sera possible à condition d’optimiser l’évacuation de la chaleur générée par la zone active et limitant la puissance de ces VCSELs. Ce travail de thèse est dédié à l’optimisation de l’évacuation thermique de VCSELs émettant à 1,5 µm pompés optiquement et fonctionnant en continu à température ambiante. En particulier, nous avons utilisé des miroirs de Bragg diélectriques (a-SiH/a-SiNx) reportés sur substrats de Si. De plus, nous montrons qu’une optimisation de l’épaisseur d’InP intra-cavité permet d’améliorer l’évacuation de la chaleur dans nos VCSELs. Finalement, nous proposons un nouveau design de VCSEL composé d’un miroir de fond de cavité enterré dans des couches métalliques. Les optimisations présentées dans le cadre du VCSEL pompé optiquement ont pour but d’être utilisés ultérieurement pour le VCSEL pompé électriquementFor the last years, Vertical cavity surface emitting lasers (VCSELs) have become of large commercial importance since they are the dominant low cost, low power coherent sources in many applications such as short distance data communication. However, despite their great success, there remain opportunities for improvement, in particular in the fiber-to-the-home (FTTH) segment which needs 1550 nm long-wavelength VCSELs, based on the InP technology. Indeed, the FTTH infrastructure would develop only if the optical network becomes less costly, that is only if the laser component becomes more cheaper by replacing the edge-emitting lasers by VCSEL lasers. In particular, to be cost-effective, these devices must avoid complicating factors like cooling systems. Indeed, the high temperature generated in the active region is one of the limiting factors in achieving high power operation. This thesis work is focused on investigating the effects of thermal management on improving properties of optically-pumped VCSELs in order to achieve higher thermal performance devices. In particular, improved thermal performance has been obtained by using (a-SiH/a-SiNx)-based efficient dielectric Bragg mirror bonded on silicon substrate. Moreover, we found that a broad heat spreading in the intra-cavity InP layer is essential for obtaining low thermal resistance, we report on an optimisation of the intra-cavity InP thickness. We finally introduce a new design for the VCSEL device by using a bottom Bragg mirror patterned and embedded inside a metallic layer. Such device has been studied and implemented. Continuous wave (CW) single mode laser operation is demonstrated at room temperature (RT) with a photopumping experiment. The optimisations on the optically pumped VCSELs shown in this thesis work can be used in electrically pumped VCSEL
31
Clarke, William M. "Rethinking the REAL ID Act and national identification cards as a counterterrorism tool". Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FClarke.pdf.
Testo completoAbstract (sommario):
Thesis (M.A. in Security Studies (Homeland Security and Defense))--Naval Postgraduate School, December 2009.Thesis Advisor(s): Dahl, Erik J. ; Denning, Dorothy E. "December 2009." Description based on title screen as viewed on January 26, 2010. Author(s) subject terms: REAL ID, PASS ID, biometrics, driver's license, enhanced driver's license, national identification card, biometric technologies, fingerprints, iris scan, facial recognition, hand geometry, Department of Homeland Security. Includes bibliographical references (p. 85-96). Also available in print.
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Moteabbed, Shora. "A theoretical and empirical examination of relational identification : implications for the workplace". Thesis, Cergy-Pontoise, Ecole supérieure des sciences économiques et commerciales, 2014. http://www.theses.fr/2014ESEC0001.
Testo completoAbstract (sommario):
Cette thèse est organisée en trois chapitres. Chaque chapitre inclut un article sur le thème de l'identification relationnelle. Le premier document propose un modèle conceptuel . Dans ce modèle, les antécédents (motifs d'identification ) et les modérateurs (caractéristiques interpersonnelles et cibles) prédisent conjointement les deux formes d'identification relationnelle : particularisée et généralisée. Les deux formes prévoient deux types de conséquences interpersonnelles. Le deuxième chapitre examine l'existence et les facteurs prédictifs des deux formes d'identification relationnelle. Il utilise une approche multi- méthode et des échantillons de professionnels et de gestionnaires. Le troisième chapitre examine les prédicateurs et les conséquences de l'identification relationnelle avec un autre membre de l'équipe dans un cadre des équipes d'étudiants. En résumé, le premier chapitre présente un modèle complet des deux formes d'identification relationnelle et ses antécédents et les conséquences. Le deuxième chapitre 2 se concentre principalement sur les deux formes et leurs antécédents et les modérateurs tandis que le chapitre 3 teste le modèle complet y compris les antécédents et les conséquences, mais seulement pour le but d'identification relationnelle particulariséThis dissertation is organized in three chapters. Each chapter contains a paper around the topic of relational identification. The first paper suggests and discusses a conceptual model in which identification motives -as antecedents- and interpersonal and target characteristics -as moderators- jointly predict the two forms of relational identification: particularized and generalized. The two forms then result in different types of interpersonal outcomes. The second paper consists of two studies that examine the existence and predictors of the two forms of relational identification through a multi-method approach. Study 1 is a qualitative study based on interview data collected from a sample of international professionals and study 2 is quantitative based on survey data collected mainly from French professionals and managers. The third paper explores the predictors and outcomes of relational identification with one’s team member in the context of students’ teams through collecting survey data at three different points of time. In sum, paper 1, presents a comprehensive model of the two forms of relational identification and its antecedents and outcomes. Paper 2 mainly focuses on the front end of the model exploring the two forms and their antecedents and moderators whereas paper 3 tests the whole model including the antecedents and outcomes but only for particularized relational identification
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Bordron, Matthias. "Modélisation et calibration pour une numérisation robotisée". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLN014/document.
Testo completoAbstract (sommario):
Les robots sériels de grandes dimensions apportent dextérité, répétabilité et flexibilité dans les chaînes de production. Sur ces chaînes, des opérations telles que la mesure de pièces peuvent exploiter ces avantages très attractifs. Il est cependant impératif de mieux maîtriser le positionnement de l’effecteur de ces robots, pour répondre aux exigences de la mesure 3D. Dans ce contexte, une cellule de numérisation robotisée a été développée, exploitant un robot sériel 6 axes comme support d’un capteur laser plan (KZ25 Kreon), et utilisant un système de stéréovision externe pour le suivi de l’opération et la calibration de la cellule (C-Track Creaform). La calibration que nous proposons pour cette cellule permet de maîtriser la qualité et d’optimiser la vitesse de numérisation, et se veut à la fois rapide et pratique (peu de contraintes et de matériel) pour répondre à un contexte industriel.Cette calibration passe par l’identification des paramètres d’un modèle géométrique pour le robot, à l’aide d’une nouvelle méthode que nous proposons, généralisant le concept d’étude d’arc de cercle proposé dans la méthode CPA (Circle Point Analysis). Une étude comparative démontre les avantages de cette nouvelle méthode par rapport aux méthodes classiquement utilisées. Une méthode de sélection que nous avons développée permet ensuite de compléter le modèle du robot avec des paramètres non-géométriques pertinents (flexibilités, jeux). Au cours de la calibration, nous étudions également les capacités du robot en vitesse et en qualité de positionnement au travers d’indices de performance originaux. Enfin nous avons élaboré et validé une méthode de calibration en position et orientation du KZ25 sur son support (le robot) ce qui permet une numérisation à 6 DDL.En perspective, un générateur de trajectoires, à donner en consigne au robot, devra utiliser cette calibration de la cellule entière pour maîtriser la qualité de la numérisation et optimiser sa duréeSerial robots are designed for repetitive tasks in wide workspaces, and provide good dexterity and flexibility to production lines. Restrictive applications such as parts digitizing can make use of those attractive benefits. However, digitizing needs on accuracy require to work carefully on the quality of the robot end-effector positioning. In this context, a digitizing cell using a 6 axis robot as displacement system for a laser plane sensor (KZ25) was developed. In this cell all calibrations are ensured by an external measurement system (C-Track Creaform) following the end-effector. The goal is to master the digitizing quality and to optimize the operating speed thanks to quick and convenient calibrations (few equipment, installation and constraints).First, the parameters of the robot geometric model are identified with a quick and convenient method we developed, based on the existing circle point analysis method (CPA). A comparative study shows the advantages of our identification method over classic methods. Then a selective method we proposed allows us to complete this geometric model with relevant non-geometric parameters such as flexibilities or backlashes. Robot performances in terms of speed and posing quality are also studied through new performance indexes. Finally, we had to create and validate a calibration method for the position and orientation of the KZ25 sensor in order to exploit the unrestricted orientation provided by the robot end- effector.In our work prospects, a path generation strategy will use those calibrations to create paths for the robot, with mastered digitizing quality and optimized speed
34
Prandina, Marco. "Spatial damping identification". Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533930.
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Zai, Salar. "Identification of micrococci". Thesis, University of Bradford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292645.
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Nguyên, Thiên-Lôc 1978. "National identification systems". Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87367.
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Hlushchenko, V. O., I. I. Kolodochka e A. O. Miroshnychenko. "Identification of motion". Thesis, Сумський державний університет, 2012. http://essuir.sumdu.edu.ua/handle/123456789/28692.
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Hlushchenko, V. O., I. I. Kolodochka e A. O. Miroshnychenko. "Identification of motion". Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/26037.
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Sinyanska, A., e A. Klushnik. "Presenting for identification". Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/26092.
Testo completoAbstract (sommario):
When it is necessary to present a person for identification by a witness, victim, accused, or suspect, investigator first questions them about appearance and characteristic signs of such person and about circumstances under which the identifying person saw the person concerned, and then draws up a record of interrogation. If a witness or victim identifies the person, the former is admonished of criminal liability for knowingly misleading testimonies while the witness is also warned about criminal liability for refusal to testify.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/26092
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Ziegler, Edward H. "Nonlinear system identification /". Online version of thesis, 1994. http://hdl.handle.net/1850/11583.
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Dwyer, Edward J. "Word Identification Strategies". Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/3417.
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Dwyer, Edward J. "Word Identification Strategies". Digital Commons @ East Tennessee State University, 2016. https://dc.etsu.edu/etsu-works/3419.
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Steelandt, Stéphanie. "Disponibilité et exploitation des ressources ligneuses par les paléoesquimaux et Inuit sur la côte ouest du Nunavik (Québec, Canada)". Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S127/document.
Testo completoAbstract (sommario):
Cette étude présente les caractéristiques des ressources ligneuses actuelles et archéologiques trouvés sur la côte ouest du Nunavik et documente leur collecte, exploitation et origine. L'étude de 1573 bois flottés provenant des plages d'Ivujivik, Akulivik, Inukjuak et Umiujaq révèle que ces derniers étaient moins nombreux, de plus petites tailles et plus dégradés dans les aires les plus au nord. Huit taxons ont été identifiés sous microscope. L'épinette était le taxon le plus abondant, suivi du saule, du mélèze, du peuplier et de l'aulne. Le cèdre blanc, le bouleau blanc et le sapin baumier étaient également présents mais extrêmement rares. La composition des 293 bois archéologiques, 550 charbons et 11 artefacts en bois provenant de 11 sites archéologiques dans les quatre zones d'études n'était guère différente. Des charbons de pin rouge ou pin sylvestre et de châtaignier, importés, ont néanmoins été découverts dans un site archéologique à Ivujivik. De plus, de nombreux charbons d'éricacées probablement locaux ainsi que du chêne ont été trouvés dans les sites archéologiques aux alentours d'Umiujaq. La présence du cèdre blanc et du bouleau blanc dans les amas de bois flottés actuels et archéologiques témoignent d'une origine des bois au sud et sud-est de la Baie de James, ce qui est également appuyé par les études comparatives et interdatations des largeurs moyennes de cernes de croissance. Des entrevues avec 27 Aînés dans les quatre villages révèlent que le vocabulaire du bois était plus diversifié dans les villages les plus méridionaux. Les arbustes étaient coupés en automne et utilisés pour la confection de matelas ou pour le feu. Les plus gros bois étaient prioritairement utilisés pour la construction des bateaux, des kayaks et traîneaux. A Ivujivik, les bois flottés étaient principalement collectés l'été par bateau autour des îles. Plus au sud, les gros bois étaient collectés ou coupés l'hiver puis rapportés par traîneaux à chiens. Finalement, les expérimentations visant à différencier chimiquement un bois flotté d'un bois coupé pour en déduire le mode de collecte des gros bois archéologiques, ont montré un plus fort enrichissement en sodium dans les bois immergés. Des analyses en composantes principales (ACP), basées sur les concentrations relatives des cations, montrent que les données des bois immergés et des bois secs peuvent être séparés en deux groupes. La complémentarité de ces recherches xylologiques, anthracologiques, radiométriques, dendrochronologiques, sociales et chimiques sur les ressources ligneuses au Nunavik apporte des connaissances inédites sur cette matière première fondamentale dans la vie quotidienne des Inuits et de leurs ancêtresThis study presents the characteristics of modern and archaeological wood resources found on the west coast of Nunavik and documents their collection, use and origin. The study of 1573 driftwood samples from beaches around Ivujivik, Akulivik, Inukjuak and Umiujaq reveals that these woods were fewer, smaller sizes and more degraded in more northern areas. Eight taxa were identified under a microscope. Spruce was the most abundant taxon, followed by willow, larch, poplar and alder. White cedar, white birch and balsam fir were also present but extremely rare. The composition of the 293 woods, 550 charcoals and 11 wooden artifacts from 11 archaeological sites in the four study areas was not different. However, charcoals of red pine and chestnut, imported, were found at an archeological site in Ivujivik. In addition, many local ericaceous charcoals and an oak sample were found at the archaeological sites around Umiujaq. The presence of white cedar and white birch in both modern and archaeological wood samples indicated that the wood originated to the south and southeast of James Bay. This conclusion is also supported by the comparative studies and cross-dating of the average growth rings. Interviews with 27 elders from the four villages showed that wood vocabulary was more diversified in the southern villages. Shrubs were cut in autumn and used for making mattresses or fire. The larger driftwood pieces were primarily used for the construction of boats, kayaks or sleds. In Ivujivik, driftwood samples were mainly collected in summer by boat around the islands. Further south, the large wood pieces were collected or cut in winter and carried by dogsled. Finally, experiments we performed to chemically differentiate driftwood from cut wood in order to help to deduce the collection method of the large archaeological wood specimens, showed a stronger enrichment in sodium in the submerged woods. Principal component analyses (PCA), based on the relative concentrations of cations, show that the immersed and dry samples can be separated in two groups. The complementarity of these xylological, anthracological, radiometric, dendrochronological, social and chemical studies on wood resources in Nunavik provides unprecedented knowledge on this essential raw material in the daily life for the Inuit and their ancestors
44
Moody, Sarah Jean. "Automated Data Type Identification And Localization Using Statistical Analysis Data Identification". DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/9.
Testo completoAbstract (sommario):
This research presents a new and unique technique called SÁDI, statistical analysis data identification, for identifying the type of data on a digital device and its storage format based on data type, specifically the values of the bytes representing the data being examined. This research incorporates the automation required for specialized data identification tools to be useful and applicable in real-world applications. The SÁDI technique utilizes the byte values of the data stored on a digital storage device in such a way that the accuracy of the technique does not rely solely on the potentially misleading metadata information but rather on the values of the data itself. SÁDI provides the capability to identify what digitally stored data actually represents. The identification of the relevancy of data is often dependent upon the identification of the type of data being examined. Typical file type identification is based upon file extensions or magic keys. These typical techniques fail in many typical forensic analysis scenarios, such as needing to deal with embedded data, as in the case of Microsoft Word files or file fragments. These typical techniques for file identification can also be easily circumvented, and individuals with nefarious purposes often do so.
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Wernholt, Erik. "Multivariable Frequency-Domain Identification of Industrial Robots". Doctoral thesis, Linköping : Department of Electrical Engineering, Linköping University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10149.
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Li, Xin. "Trust in national identification systems a trust model based on the TRA/TPB /". Online access for everyone, 2004. http://www.dissertations.wsu.edu/Dissertations/summer2004/Xin%5FLi%5F071304.pdf.
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Kindarji, Bruno. "Questions de Sécurité et de Vie Privée autour des Protocoles d'Identification de Personnes et d'Objets". Phd thesis, Télécom ParisTech, 2010. http://pastel.archives-ouvertes.fr/pastel-00006233.
Testo completoAbstract (sommario):
On parle d'identification lorsqu'une personne ou un objet communicant présente un élément qui permet sa reconnaissance automatique. Ce mode s'oppose traditionnellement à l'authentification, dans laquelle on prouve une identité annoncée. Nous nous intéressons ici à l'identification biométrique d'une part, et à l'identification d'objets communicants sans-fil d'autre part. Les questions de la sécurité et du respect de la vie privée sont posées. Il y a sécurité si on peut s'assurer de la certitude que l'identification produit le bon résultat, et la vie privée est respectée si une personne extérieure au système ne peut pas déduire d'information à partir d'éléments publics. Nous montrons que dans le cas biométrique, le maillon le plus sensible du système se situe au niveau du stockage des données, alors que dans le cas de communications sans-fil, c'est le contenu des messages qui doit être protégé. Nous proposons plusieurs protocoles d'identification biométrique qui respectent la vie privée des utilisateurs; ces protocoles utilisent un certain nombre de primitives cryptographiques. Nous montrons par ailleurs comment l'utilisation de codes d'identification permet de mettre en oeuvre des protocoles d'interrogation d'objets communicants.
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Lyzell, Christian. "Structural Reformulations in System Identification". Doctoral thesis, Linköpings universitet, Reglerteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-84515.
Testo completoAbstract (sommario):
In system identification, the choice of model structure is important and it is sometimes desirable to use a flexible model structure that is able to approximate a wide range of systems. One such model structure is the Wiener class of systems, that is, systems where the input enters a linear time-invariant subsystem followed by a time-invariant nonlinearity. Given a sequence of input and output pairs, the system identification problem is often formulated as the minimization of the mean-square prediction error. Here, the prediction error has a nonlinear dependence on the parameters of the linear subsystem and the nonlinearity. Unfortunately, this formulation of the estimation problem is often nonconvex, with several local minima, and it is therefore difficult to guarantee that a local search algorithm will be able to find the global optimum. In the first part of this thesis, we consider the application of dimension reduction methods to the problem of estimating the impulse response of the linear part of a system in the Wiener class. For example, by applying the inverse regression approach to dimension reduction, the impulse response estimation problem can be cast as a principal components problem, where the reformulation is based on simple nonparametric estimates of certain conditional moments. The inverse regression approach can be shown to be consistent under restrictions on the distribution of the input signal provided that the true linear subsystem has a finite impulse response. Furthermore, a forward approach to dimension reduction is also considered, where the time-invariant nonlinearity is approximated by a local linear model. In this setting, the impulse response estimation problem can be posed as a rank-reduced linear least-squares problem and a convex relaxation can be derived. Thereafter, we consider the extension of the subspace identification approach to include linear time-invariant rational models. It turns out that only minor structural modifications are needed and already available implementations can be used. Furthermore, other a priori information regarding the structure of the system can incorporated, including a certain class of linear gray-box structures. The proposed extension is not restricted to the discrete-time case and can be used to estimate continuous-time models. The final topic in this thesis is the estimation of discrete-time models containing polynomial nonlinearities. In the continuous-time case, a constructive algorithm based on differential algebra has previously been used to prove that such model structures are globally identifiable if and only if they can be written as a linear regression model. Thus, if we are able to transform the nonlinear model structure into a linear regression model, the parameter estimation problem can be solved with standard methods. Motivated by the above and the fact that most system identification problems involve sampled data, a discrete-time version of the algorithm is developed. This algorithm is closely related to the continuous-time version and enables the handling of noise signals without differentiations.
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Luo, Dapeng. "SYSTEM IDENTIFICATION AND FAULT DETECTION OF COMPLEX SYSTEMS". Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3583.
Testo completoAbstract (sommario):
The proposed research is devoted to devising system identification and fault detection approaches and algorithms for a system characterized by nonlinear dynamics. Mathematical models of dynamical systems and fault models are built based on observed data from systems. In particular, we will focus on statistical subspace instrumental variable methods which allow the consideration of an appealing mathematical model in many control applications consisting of a nonlinear feedback system with nonlinearities at both inputs and outputs. Different solutions within the proposed framework are presented to solve the system identification and fault detection problems. Specifically, Augmented Subspace Instrumental Variable Identification (ASIVID) approaches are proposed to identify the closed-loop nonlinear Hammerstein systems. Then fast approaches are presented to determine the system order. Hard-over failures are detected by order determination approaches when failures manifest themselves as rank deficiencies of the dynamical systems. Geometric interpretations of subspace tracking theorems are presented in this dissertation in order to propose a fault tolerance strategy. Possible fields of application considered in this research include manufacturing systems, autonomous vehicle systems, space systems and burgeoning bio-mechanical systems.Ph.D.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering
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HORTELIO, FERNANDES ANDREA. "La trace du sujet. L'identification dans la theorie de freud et lacan". Paris 7, 1999. http://www.theses.fr/1999PA070030.
Testo completoAbstract (sommario):
Cette these vise a etudier comment freud et lacan ont elabore, dans les termes d'une theorie de l'identification, l'experience de satisfaction qui a lieu entre la mere et l'enfant. Nous nous sommes ainsi interessee a la maniere dont la mere acquiert tant d'importance a l'egard de l'enfant qu'elle est dite d'emblee comme etant inoubliable et impossible d'etre egalee. Les effets de ce rapport dans le psychisme de l'homme ont attire tout specialement notre attention. C'est par l'analyse des deux topiques de l'appareil psychique elaborees par freud et par la theorie du sujet formulee par lacan que nous avons travaille notre problematique. Les cas cliniques publies par ces deux auteurs ont ete utilises dans la mesure ou ils ont contribue a la formalisation de leurs theories de l'identification. Par l'etude chronologique des textes qui traitent du theme de l'identification nous avons mis en relief les impasses cliniques et theoriques rencontrees dans l'oeuvre freudienne et lacanienne. A cet egard, nous nous sommes attachee a comprendre quel type d'apport lacan a pu donner aux recherches realisees par freud sur ce terrain, tout en construisant sa theorie de l'identification sous les auspices d'un retour aux textes freudiens. Enfin, cette these plus qu'un travail sur les theories de l'identification elaborees par freud et par lacan represente un examen de l'evolution qu'a connu le concept freudien d'identification dans la pensee lacanienne. Sur ce point, cette these apporte les perspectives ouvertes par lacan avec la prise en compte de l'identification dans la pratique cliniqueThis thesis aims at studying how freud and lacan have mapped out, in the terms of a theory of the identication, the experience of satisfaction that takes place between mother and child. We also focused on the way a mother acquires so much importance for her child, so that she is told being at once unforgettable and impossible to be equalled. The effects of this relation in man's psyche have specially retained our attention. Our problematics have been worked along with the analysis of the two topics of the psychical apparatus developed by freud and by lacan's theory of the subject. Clinical cases published by these two authors have been used so far they contributed to the formalization of their theories of identification. The chronological study of texts that deal with the terme of identification allowed us to make appear clinical and theorical impasses met in freud and lacan's works. In this respect, we endeavoured to understand which kind of contribution lacan might have been given to researches made by freud on this field, while he was building his theory of identification under the auspices of a return to freud's texts. At last, more than a work upon the theories of identification developed by freud and lacan, this thesis examines the evolution of freud's concept of identification in lacan's thought. On this point, this thesis leads to viewpoints opened by lacan when taking account of identification in the clinical practice