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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.
31

Využití Národního parku Podyjí ve výuce botaniky na základních školách / Using of Natural Park Podyjí in Botanical Education at Basic School

Lengálová, Renata January 2019 (has links)
The aim of this thesis was to prepare, implement and evaluate an excursion as one of the organization forms of fieldtrips for lower secondary pupils from schools in Znojmo benefiting from the natural site of the National Park Podyjí, in specific the location called Kraví hora. In this case, it is a botanical the med field trip. The theoretical part of the thesis deals with general characteristics of the National Park Podyjí from various nature views highlighting its specially protected areas. This is followed by a description of specific field trip aspects and the most frequently used teaching methods together. The practical part contains, among other things, methodological instructions for teachers and pupils as well as didactic materials (worksheets, didactic test), included in the appendix. Questionnaire surveys for pupils and teachers are part of the last empirical chapter. The aim of the questionnaire was to record and evaluate thoughts, feelings and attitudes of pupils from the lower secondary school to the specific field trip, its implementation and overall organization. The aim of subsequently submitted didactic tests was to observe and reveal the effectiveness of the field trip teaching. The aim of the questionnaire, given to teachers, was to monitor their standpoints in relation to...
32

Intensité du champ magnétique terrestre en périodes stables et de transition, enregistrée par des séquences de coulées volcaniques du quaternaire

Chauvin, Annick 10 January 1989 (has links) (PDF)
L'objectif de ce travail est l'étude du comportement du champ géomagnétique, en direction et en intensité, aux cours de périodes stables et de transition (excursions et inversions). Dans ce but, plusieurs études paléomagnétiques et de nombreuses déterminations de paléointensité par la méthode de Thellier ont été effectuées sur des coulés provenant de différentes provinces volcaniques. Des paléointensités comprises entre 21 et 54 Il T ont été obtenues sur des coulées de l'île de la Réunion, pour les périodes 5-11 Ka (mille ans) et 82-98 Ka. Ces données ainsi que la variation séculaire observée sur les directions, concordent avec des intensités du champ dipolaire et nondipolaire comparables avec les valeurs actuelles. Au contraire, de nouvelles données de paléointensité obtenues sur des laves volcaniques de directions intermédiaires, d'Islande et de la Chaîne des Puys, datées entre 40 et 50 Ka., confirment la baisse importante du champ durant l'excursion du Laschamp. Une étude des inversions les plus récentes a été effectuée sur une séquence datée de 123 coulées de l'île de Tahiti (Polynésie française). Des enregistrements détaillés du champ de transition ont été obtenus pour le Jaramillo supérieur et le Cobb Mountain, alors que les transitions du Jaramillo inférieur et du Matuyama-Brunhes n'ont été enregistrées que par quelques coulées. Le Cobb Mountain apparait, dans cet enregistrement, comme une excursion inverse-transitionel-inverse. Les données acquises à Tahiti, combinées à d'autres déjà obtenues en Polynésie suggèrent une domination des termes zonaux au début des renversements. L'intensité du champ de transition, à cette latitude, parait très faible, comme l'indiquent les paléointensités obtenues (3 à 8 Il T). Cette observation combinée à une analyse de l'intensité d'aimantation des coulées, pourrait indiquer une variation de l'intensité moyenne du champ de transition avec la latitude.
33

Topics in Random Matrices: Theory and Applications to Probability and Statistics

Kousha, Termeh 13 December 2011 (has links)
In this thesis, we discuss some topics in random matrix theory which have applications to probability, statistics and quantum information theory. In Chapter 2, by relying on the spectral properties of an associated adjacency matrix, we find the distribution of the maximum of a Dyck path and show that it has the same distribution function as the unsigned Brownian excursion which was first derived in 1976 by Kennedy. We obtain a large and moderate deviation principle for the law of the maximum of a random Dyck path. Our result extends the results of Chung, Kennedy and Khorunzhiy and Marckert. In Chapter 3, we discuss a method of sampling called the Gibbs-slice sampler. This method is based on Neal's slice sampling combined with Gibbs sampling. In Chapter 4, we discuss several examples which have applications in physics and quantum information theory.
34

Topics in Random Matrices: Theory and Applications to Probability and Statistics

Kousha, Termeh 13 December 2011 (has links)
In this thesis, we discuss some topics in random matrix theory which have applications to probability, statistics and quantum information theory. In Chapter 2, by relying on the spectral properties of an associated adjacency matrix, we find the distribution of the maximum of a Dyck path and show that it has the same distribution function as the unsigned Brownian excursion which was first derived in 1976 by Kennedy. We obtain a large and moderate deviation principle for the law of the maximum of a random Dyck path. Our result extends the results of Chung, Kennedy and Khorunzhiy and Marckert. In Chapter 3, we discuss a method of sampling called the Gibbs-slice sampler. This method is based on Neal's slice sampling combined with Gibbs sampling. In Chapter 4, we discuss several examples which have applications in physics and quantum information theory.
35

MISE EN ŒUVRE ET OPTIMISATION DES PLANS DE CONTRÔLE DYNAMIQUE DANS LA FABRICATION DES SEMI-CONDUCTEURS

Nduhura Munga, Justin 09 October 2012 (has links) (PDF)
Dans cette thèse, nous avons travaillé sur le problème de la mise œuvre des plans de contrôle dynamique au sein d'un environnement semi-conducteur multi-produits. Nous nous sommes focalisés sur le compromis entre le rendement et le temps de cycle, la réduction du nombre de contrôles sans valeur ajoutée, et l'optimisation de l'utilisation de la capacité de contrôle. Nous avons commencé par formaliser et généraliser le problème au travers d'une revue de la littérature. Ensuite, nous avons proposé trois principales solutions pour supporter l'implémentation industrielle des plans de contrôle dynamique. La première solution que nous avons proposée est basée sur un indicateur qui permet le traitement d'un très grand volume de données et l'évaluation de plusieurs types de risques avec une très faible consommation des ressources informatiques. La deuxième solution est basée sur des algorithmes d'échantillonnage intelligents que nous avons développés pour permettre le choix en dynamique des meilleurs produits ou lots à contrôler. Et la troisième solution est un programme linéaire mixte en nombres entiers que nous avons développé pour optimiser les paramètres clés qui sont utilisés dans les algorithmes d'échantillonnage dynamique.L'originalité des travaux de cette thèse se trouve dans l'industrialisation des différentes solutions que nous avons proposées. Toutes les solutions ont été validées industriellement et certaines solutions ont été étendues à d'autres sites de la compagnie. Plusieurs perspectives ont été identifiées et offrent ainsi de nombreuses pistes de recherche.
36

Marches aléatoires avec branchement et sélection

Chen, Xinxin 12 December 2013 (has links) (PDF)
Nous considérons le mouvement brownien branchant qui est un objet mathématique modélisant l'évolution d'une population. Dans ce système, les individus se déplacent indépendamment selon des mouvement browniens et se divisent indépendamment à taux 1 en deux individus. Nous nous intéressons à la position la plus à droite (resp. à gauche) au temps s, qui est définie comme le maximum (resp. le minimum) des positions des individus vivants à ce temps-là. D'après Lalley et Sellke \cite{Lalley-Sellke1987}, chaque individu apparu dans ce système aura un descendant atteignant la position la plus à droite. Nous étudions ce phénomène quantitativement, en estimant le premier instant où chaque individu vivant à l'instant s a eu un tel descendant. Nous étudions ensuite la marche aléatoire branchante en temps discret qui est un système analogue dans lequel les marches aléatoires sont indexées par un arbre de Galton-Watson. On définit de la même façon la position la plus à droite et celle la plus à gauche à la génération n. Nous considérons la marche partant de la racine qui va à la position la plus à gauche. le chemin reliant la racine à la position la plus à gauche. Nous montrons que cette marche, convenablement renormalisée, converge en loi vers une excursion brownienne normalisée. Dans la dernière partie de cette thèse, nous nous plaçons "dans un cadre avec un critère de sélection". Etant donné un arbre régulier dont chaque individu a N enfants, nous attachons à chaque individu une variable aléatoire. Toutes les variables attachées sont i.i.d., de loi uniforme sur [0,1]. La sélection intervient de la façon suivante: un individu est conservé si le long du chemin le plus court le reliant à la racine, les variables aléatoires attachées sont croissantes; les autres individus sont éliminés du système. Nous étudions le comportement asymptotique de la population dans le processus lorsque N tend vers l'infini.
37

CLINICAL FUNCTIONAL TESTING IN PEOPLE 30-60 YEARS OLD. EXPECTED PERFORMANCE VALUES AND CORRELATIONS TO MUSCLE FITNESS AND ACTIVITY LEVEL

English, Robert A. (Tony) 01 January 2008 (has links)
Activity and fitness levels decline through the years from 30 to 60 years of age. Minimal research is available regarding functional assessment tools in this population. Reliable functional tools are needed to reintroduce individuals to appropriate physical activity levels following an injury and to maintain high levels of participation through their lifespan. The purposes of this study were multiple: 1) determine if three functional tests correspond with neuromotor fitness levels, 2) establish a model of functional tests, activity levels and descriptive data that distinguishes the most from the least fit, 3) describe expected mean functional test performances, and 4) demonstrate the reliability of the three functional tests in a sample of 30-60 year olds. 63 females and 38 males completed activity surveys, a neuromotor fitness test, the star excursion balance test (SEBT), the four square step test (FSST), and the Biering-Sorensen test of trunk extensor muscle endurance. Moderate to high reliability of the functional tests was determined with 29 subjects. The SEBT (r=.97), FSST (r=.88) and the Biering-Sorensen test (r=.64) were reliable. All functional tests were able to distinguish between the most fit and least fit with regards to the fitness tests. A model of the body mass index and the FSST predicted 25% of the variance in fitness level. Functional test means are reported by 10-year age groups and represent expected performance values.Health care professionals can use this information to compare their patients to this group of healthy individuals. This will allow them to have some idea of how well a person with an injury is performing relative to a healthy individual. Additionally the combination of a persons BMI plus their FSST gives the health care professional some information about an individual level of neuromuscular fitness so that the health care professional can guide their patients toward an appropriate level of physical activity after their injury or illness.
38

Topics in Random Matrices: Theory and Applications to Probability and Statistics

Kousha, Termeh 13 December 2011 (has links)
In this thesis, we discuss some topics in random matrix theory which have applications to probability, statistics and quantum information theory. In Chapter 2, by relying on the spectral properties of an associated adjacency matrix, we find the distribution of the maximum of a Dyck path and show that it has the same distribution function as the unsigned Brownian excursion which was first derived in 1976 by Kennedy. We obtain a large and moderate deviation principle for the law of the maximum of a random Dyck path. Our result extends the results of Chung, Kennedy and Khorunzhiy and Marckert. In Chapter 3, we discuss a method of sampling called the Gibbs-slice sampler. This method is based on Neal's slice sampling combined with Gibbs sampling. In Chapter 4, we discuss several examples which have applications in physics and quantum information theory.
39

「修」台灣「學」日本:日治時期台灣修學旅行之研究 / The study of educational excursion in Taiwan during the period of Japanese rule

林雅慧 Unknown Date (has links)
起源於日本的「修學旅行」,隨著日本在台實施新式教育的政策,進入了台灣社會。以學生為主體的修學旅行,不僅兼具近代遊憩活動的意涵,更富教育功能,成為教室以外拓展學生視野的新興校外活動;同時,修學旅行是還是殖民當局貫徹其同化策略的工具。此時的修學旅行,也反映出近代化旅遊的樣貌,亦即從過去「個人探險」的形式,進入「制度化」的階段:島內、海外修學旅行開始流行,象徵著交通建設走向完備;由與旅行相關的事物越來越多,顯示修學旅行已成為既定行事。而在旅行的過程中,透過讓學生觀賞近代建設,不僅有助於增廣見聞,也是使其從對於近代化的嚮往轉化為對統治者的認同;或是參拜神社,接觸國家神道的核心,感受日本國體萬世一系的天皇體制,台灣學生在被檢視同化教育成效之餘,認知方面也無條件地被強化成為「日本人」。由此可知修學旅行中處處可見政治力量的鑿痕。此外,在修學旅行之中,學生所見到與鄉土相關的景物時,該物件已經被賦予新的意義,也就是被化約在日本歷史系統之下,漸漸失去其主體性。而學生即是在修學旅行的過程裡,體驗殖民與近代化之間曖昧不明的滋味。 / The "educational excursion" which originated in Japan,had entered Taiwan society with the new education policies Japanese carried out in Taiwan. The educational excursion took students as the main part, were not only concurrently the meaning of modern recreational activities,but also were full of educational functions, and became new activities outside the school that could widen students' horizons beyond the classroom; and in the same time, the educational excursion were also the tool for colonial authorities to carry out the strategies for the assimilation. The educational excursion at this time, also reflected the appearance of modern tourism, which entered the stage of "institutionalized" from the past form of "personal adventure": the domestic,overseas educational excursion became popular, which signified the transportation construction were going to be complete; since the travel-related things became more and more,it showed that the educational excursion had become main stream activities. And in the process of travel, through letting students to view the modern buildings,it did not only help to broaden their horizons, but also made their yearning to the modernization transformed to the acceptance to the rulers; or to let them visiting the Yasukuni Shrine, and to access the core of to the national Shinto religion,to experience the system of the eternal Emperor of Japanl, except that Taiwanese students were viewed of the effectiveness of assimilation education . The recognitions of Taiwanese students could be forced to become "Japanese” unconditionally. From this we can see the marks of political power everywhere in the educational excursion. In addition, during the educational excursion, when the students saw the scenes related to the home town,that thing had been given a new meanings,it was converted into the system of Japan history, and gradually losing its subjectivity. And the students in the process of educational excursion were experiencing the taste of ambiguities between colonization and modernization.
40

Historické stavební materiály a technologické postupy a jejich uplatnění v technické výuce na 2. stupni ZŠ / The Historic Building Materials and Technologies and their Application in Technical Education at the Second Level of Primary School

ČERNÝ, Daniel January 2018 (has links)
This theses is focusing on history of a building materials and technological processes in a chosen building objects in Czech Republic. These building object are build in the program of the secondary level of elementary school as a projects or excursions. In the theoretical part of the theses we are focusing on technical education and its application in teaching. Then we direct the focus to technical education, technical literacy and framework education programs in the field of technical education and history. The last part of this theses is a brief description of the selected buildings that are in our interest in Czech Republic. In the practical part of the theses are created individual excursions and projects for teaching at the second level of elementary school Part of the excursion for teachers is base information with final evaluation. In the attachment are worksheets and maps of the individual excursions.

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