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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

The effect of two types of video tape instructions on the resequencing performance of female tennis players at different skill levels /

Gendron, Stanley C. (Stanley Charles) January 1990 (has links)
No description available.
32

Analysing guided and recorded self-generated visual and expressive personal constructs as adjuncts to the counselling process

Pienaar, Pieter Abraham. January 2004 (has links)
Thesis ( M Ed (Learning support, Guidance and Counselling))--University of Pretoria, 2004. / Includes bibliographical references.
33

Kassifikasie en toelaatbaarheid van video- en oudiobande as getuienis / The classification and admissibility of video and audio tape recordings

Van Niekerk, J. P. 03 1900 (has links)
Getuienis voortgebring deur middel van 'n toestel of apparaat (soos byvoorbeeld 'n foto) kan 6f as reele getuienis 6f as dokumentere getuienis, 6f as albei aangebied word. Die doel waarvoor dit aangebied word, bepaal die toelaatbaarheidsvereiste(s). Oudio- en Videobande as getuienis word vir doeleindes van bespreking oor dieselfde kam geskeer aangesien daar prinsipieel nie 'n onderskeid is nie. '1 am unabk to see any difference, in principk, between the admissibility of an audio tape recording and a video tape recording" rull Milne rp in S v Ramgobin and Others 1986 (4) SA 117 (N) p 129 I. Huidiglik is daar in die Suid-Afrikaanse reg nie eenstemmigheid ten opsigte van die klassifikasie en/of toelaatbaarheidsvereistes van toestelle en apparate, soos byvoorbeeld videos, nie. In die bespreking wat volg sal gekyk word na die nodigheid van 'n klassifikasie en wat die omvang van toelaatbaarheidsvoorskrifte behoort te wees, in 'n akkusatoriese strafprosesstelsel soos die van Suid-Afrika en die Anglo-Amerikaanse regstelsels. / Criminal & Procedural Law / LLM
34

A marketing research study for educational videotapes in Hong Kong

Hui, Wing-wong, Jimmy., 許榮煌. January 1992 (has links)
published_or_final_version / Business Administration / Master / Master of Business Administration
35

An investigation of thermo-mechanical processing parameters of (Pb/Bi)←2Sr←2Ca←2CU←3O←x superconducting tapes

Law, Lorraine Nicola January 1998 (has links)
No description available.
36

Projeto e construção de limitador de corrente supercondutor utilizando fitas de YBCO / Project and construction of a fault current limiter using YBCO tapes

Lamas, Jérika Suely 06 October 2009 (has links)
Limitadores de corrente supercondutores resistivos (LCSR) são dispositivos com características elétricas próximas ao ideal quando ocorre a transição do estado supercondutor para o estado normal, limitando a corrente de falta através da inserção rápida de uma resistência na rede. A viabilidade técnica e econômica destes limitadores aumentou após o desenvolvimento dos supercondutores de alta temperatura crítica HTS. A primeira geração de fitas HTS (BSCCO) consiste em multifilamentos de material supercondutor embutidos em uma matriz de prata. A densidade de corrente crítica típica é de aproximadamente 140 A/mm2. Contudo, a resistência alcançada pelo LCSR quando atinge o estado normal não é suficiente para limitar a corrente de falta, sendo necessários longos comprimentos de fitas (~5 km) para que a corrente seja limitada. O recente desenvolvimento de fitas supercondutoras de YBCO com filmes finos texturizados e com substrato de alta resistividade superou o desempenho das fitas de BSCCO para esta aplicação. Com uma densidade de corrente crítica de 136 A/mm2, as fitas de YBCO são bem conhecidas pelo seu alto valor de índice n (aproximadamente 30), rápida resposta de transição após falta e alta resistência elétrica no estado normal. Neste trabalho foram analisados o comportamento elétrico e magnético das fitas de BSCCO e YBCO (em amostras curtas de 0,2 m) utilizando diferentes técnicas de caracterização das propriedades das fitas HTS. A partir destes resultados, medidas com pulsos de corrente DC e AC com intensidades de 3 a 7 vezes a corrente crítica do sistema (I=720 A a 1700 A) com duração de 1 a 5 ciclos da rede em 60 Hz (16 a 80 ms) foram realizados de forma a obter as características do tempo de recuperação em um elemento contendo 4 fitas em paralelo (0,4 m). Os resultados permitiram o projeto, construção e medidas em corrente AC de um protótipo LCSR (Ipico = 2 kA) contendo 16 elementos sob condições normais de operação da rede (220 V - 60 Hz). / Resistive Superconducting fault current limiter (SFCL) are devices with electrical behavior near the ideal when it changes its state from the superconducting to the normal state, limiting the fault current by the insertion of a fast transition resistance in the grid. The technical and economical feasibility of these limiters arose after the development of the high critical temperature superconductors HTS. First generation HTS tapes (BSCCO) consist of multifilamentary composite tapes embedded in a silver matrix. The typical critical current density is approximately 14 kA/cm2. However, the resistance reached by the SFCL when normal state occurs is not high enough to limit the fault current, making necessary long lengths of tapes (~5 km) for limiting purposes. The recently development of coated conductors composites with high resistivity metal substrate have succeeded the BSCCO tapes which are based on YBCO textured film. Upon carrying a critical current density of 13.6 kA/cm2, YBCO tapes are well known for their high n-index value (approximately 30), fast transition response after fault, and high electrical resistance in the normal state. In this work, we will present the electrical and magnetic performance of BSCCO and YBCO tapes (short samples of 0.2 m) using several techniques to characterize the properties of the HTS tapes. It was also performed analysis with DC and AC currents peaks with strength of 3 to 7 times the critical current (I=720 A to 1700 A) lasting 1 to 5 cycles (16 to 80 ms) in order to verify the recovery characteristics in an element with 4 tapes in a parallel connection. And with those characteristics we designed and constructed and measured in AC current a SFCL prototype (Ipeak = 2 kA) consisting in 16 elements to use in the grid (220 V - 60 Hz) under operational conditions.
37

As contribuições do uso de infográficos, Storytelling e Mapas Mentais em vídeo na Educação a Distância : exemplo de aplicação na plataforma Já Entendi ENEM /

Morais, Márcio Jesus de. January 2016 (has links)
Orientador: João Pedro Albino / Banca: Dariel de Carvalho / Banca: Vania C. Pires Nogueira Valente / Resumo: Onde quer que estejamos as tecnologias da informação e comunicação (TIC) nos acompanham, elas têm sido ferramentas que nos auxiliam a pensar, aprender, conhecer, representar e transmitir para todo um grupo de pessoas de todas as gerações toda forma de conhecimento. O computador e a internet estão sendo objetos de estudos na área de ensino e aprendizagem por sua capacidade de interatividade, e também pela familiaridade que os alunos têm demonstrado com esses recursos. Essa nova geração, chamada de homo zappiens ou nativos digitais, principalmente, tem um modo muito peculiar de aprender, acostumada a interagir com muita informação ao mesmo tempo, escutando música e fazendo a tarefa, e assistindo televisão, dessa forma a neurolinguística torna-se um recurso muito importante na concepção do conteúdo. Utilizando esse recurso, a plataforma de inteligência educacional Já Entendi, elabora vídeo aulas com base em uma didática inspirada no cotidiano das pessoas. Cada aula é produzida com uma estética exclusiva utilizando mapas mentais, infográficos, desenhos, ilustrações que são usados para facilitar a mentalização, fazendo uso de imagens como ferramenta didática buscando assim valorizar a capacidade de interpretação e ressignificação dos alunos, ensinando o conteúdo através de uma narrativa, ou storytelling. Os recursos multimídia e a sua capacidade de integrar texto escrito, som e imagens fixas e em movimento no mesmo espaço simbólico, são essencialmente um dos ingredientes fundament... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Wherever we are the information and communication technologies (ICT) will be with us, they have been tools that help us to think, learn, understand, represent and transmit to a whole group of people of all generations all forms of knowledge. The computer and Internet are objects of study in teaching and learning for its interactive capability, and the familiarity that students have demonstrated with these features too. This new generation, called homo zappiens or digital natives, especially, has a very peculiar way of learning, used to interact with a lot of information while listening to music and doing the task, and watching television, thus the neurolinguistic becomes a very important feature in the design of the content. Using this feature, the educational intelligence platform Já Entendi, prepares video lessons based on a teaching inspired in people's daily lives. Each lesson are produced with a unique aesthetic using mind maps, graphics, drawings, illustrations that are used to facilitate mentoring, using images as a teaching tool thus seeking to enhance the ability of interpretation and reinterpretation of the students, teaching content through a narrative, or storytelling. Multimedia resources and their ability to integrate written text, sound and still images and moving in the same symbolic space, are essentially one of the key ingredients of learning by digital means. The research method used was the bibliographical study and an application use of infographics video... (Complete abstract click electronic access below) / Mestre
38

Projeto e construção de limitador de corrente supercondutor utilizando fitas de YBCO / Project and construction of a fault current limiter using YBCO tapes

Jérika Suely Lamas 06 October 2009 (has links)
Limitadores de corrente supercondutores resistivos (LCSR) são dispositivos com características elétricas próximas ao ideal quando ocorre a transição do estado supercondutor para o estado normal, limitando a corrente de falta através da inserção rápida de uma resistência na rede. A viabilidade técnica e econômica destes limitadores aumentou após o desenvolvimento dos supercondutores de alta temperatura crítica HTS. A primeira geração de fitas HTS (BSCCO) consiste em multifilamentos de material supercondutor embutidos em uma matriz de prata. A densidade de corrente crítica típica é de aproximadamente 140 A/mm2. Contudo, a resistência alcançada pelo LCSR quando atinge o estado normal não é suficiente para limitar a corrente de falta, sendo necessários longos comprimentos de fitas (~5 km) para que a corrente seja limitada. O recente desenvolvimento de fitas supercondutoras de YBCO com filmes finos texturizados e com substrato de alta resistividade superou o desempenho das fitas de BSCCO para esta aplicação. Com uma densidade de corrente crítica de 136 A/mm2, as fitas de YBCO são bem conhecidas pelo seu alto valor de índice n (aproximadamente 30), rápida resposta de transição após falta e alta resistência elétrica no estado normal. Neste trabalho foram analisados o comportamento elétrico e magnético das fitas de BSCCO e YBCO (em amostras curtas de 0,2 m) utilizando diferentes técnicas de caracterização das propriedades das fitas HTS. A partir destes resultados, medidas com pulsos de corrente DC e AC com intensidades de 3 a 7 vezes a corrente crítica do sistema (I=720 A a 1700 A) com duração de 1 a 5 ciclos da rede em 60 Hz (16 a 80 ms) foram realizados de forma a obter as características do tempo de recuperação em um elemento contendo 4 fitas em paralelo (0,4 m). Os resultados permitiram o projeto, construção e medidas em corrente AC de um protótipo LCSR (Ipico = 2 kA) contendo 16 elementos sob condições normais de operação da rede (220 V - 60 Hz). / Resistive Superconducting fault current limiter (SFCL) are devices with electrical behavior near the ideal when it changes its state from the superconducting to the normal state, limiting the fault current by the insertion of a fast transition resistance in the grid. The technical and economical feasibility of these limiters arose after the development of the high critical temperature superconductors HTS. First generation HTS tapes (BSCCO) consist of multifilamentary composite tapes embedded in a silver matrix. The typical critical current density is approximately 14 kA/cm2. However, the resistance reached by the SFCL when normal state occurs is not high enough to limit the fault current, making necessary long lengths of tapes (~5 km) for limiting purposes. The recently development of coated conductors composites with high resistivity metal substrate have succeeded the BSCCO tapes which are based on YBCO textured film. Upon carrying a critical current density of 13.6 kA/cm2, YBCO tapes are well known for their high n-index value (approximately 30), fast transition response after fault, and high electrical resistance in the normal state. In this work, we will present the electrical and magnetic performance of BSCCO and YBCO tapes (short samples of 0.2 m) using several techniques to characterize the properties of the HTS tapes. It was also performed analysis with DC and AC currents peaks with strength of 3 to 7 times the critical current (I=720 A to 1700 A) lasting 1 to 5 cycles (16 to 80 ms) in order to verify the recovery characteristics in an element with 4 tapes in a parallel connection. And with those characteristics we designed and constructed and measured in AC current a SFCL prototype (Ipeak = 2 kA) consisting in 16 elements to use in the grid (220 V - 60 Hz) under operational conditions.
39

An examination of the validity of the telecourse self-assessment prediction instrument : "Are telecourses for me?"

Wetle, Victoria L. 18 November 1996 (has links)
There is a need for a simple tool to assess the learner's match to distance delivery methods such as telecourse and modem classes. The concept of a prediction instrument is a practical approach to identifying the at-risk student in the distance delivery environment. The purpose of this study was to determine if the Telecourse Self-Assessment Predictor Inventory (TSAPI), entitled "Are Telecourses for Me?" predicted the likelihood of student success in a telecourse. The utility of this instrument was analyzed using descriptive statistical procedures to describe the relationship between the total TSAPI scores, the scores on each instrument item, and the two student success categories of completers and noncompleters. The study compared academic achievement with scores on the TSAPI of 133 students enrolled in Medical Terminology I MED051, Medical Terminology II MED052, Personal Health HE205, and Aging and Society HS220 telecourses at Chemeketa Community College from 1994 to 1995. The TSAPI did not predict student telecourse success in this study. Completion rates differed by gender, grade point average (GPA), and total credit hours but did not differ by instrument total scores or distribution of scores. Several individual instrument questions had some predictive value and needs assessment utility for both students and instructors. Only three of the instrument's 10 questions confirmed a positive relationship between the questions and prediction of student success. The categories explored by these questions were (1) independence in receiving directions from instructors, (2) expected time spent on telecourse compared to a traditional face-to-face class, and (3) student self-assessment of reading ability. Questions not found to predict success elicited responses concerning motivation for taking the class, the need for interactivity, technology anxiety, ability to come to campus, and organization of required course work. The key recommendation of the study was to develop an instrument that has greater utility in predicting student success. The results of the study support the premise that a short, easy-to-administer score prediction instrument would be valuable in assessing student needs and identifying the at-risk population in the distance learning environment. / Graduation date: 1997
40

The use of video technology to enhance zoo exhibits

Kipp, Lorraine Susan 05 1900 (has links)
No description available.

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