985 research outputs found
Limiter lock systems at TEXTOR: flexible tools for plasma-wall investigation
Limiter lock systems on the top and the bottom of the TEXTOR vessel are essential elements for experimental investigations of plasma-wall interaction in a tokamak. The lock systems are designed as user facilities that allow the insertion of wall elements (limiter) and tools for diagnostic (electrical probes, gas injection) without breaking the TEXTOR vacuum. The specially designed holder on top of the central carrier and a powerful vacuum pump system permit the exchange of components within similar to1 h. Up to ten electrical signals, four thermocouples, and a gas supply can be connected at the holder interface. Between discharges, the inserted component can be positioned radially and turned with respect to the toroidal magnetic field. Additionally, the central carrier is electrically isolated to apply bias voltages and currents up to 1 kV and 1 kA, respectively.An important feature of the lock system is the good access for optical spectroscopic observation of the inserted components in the vicinity of the edge plasma. The whole spectrum from ultraviolet to infrared is covered by spectrometers and filters combined with cameras. Toroidally and poloidally resolved measurements are obtained front the view on top of the probes while the tangential poloidal view delivers radially and toroidally resolved information.A programmable logic controller (Simatic S5) that is operated inside the TEXTOR bunker and from remote locations outside the concrete wall drives all possible features of the lock system
Spectroscopic Measurements of the radial electric field under conditions of improved particle confinement (IPC) with the Dynamic Ergodic Divertor (DED) in the Tokamak TEXTOR
Fast piezoelectric valve offering controlled gas injection in magnetically confined fusion plasmas for diagnostic and fuelling purposes
O ensino de PHP em páginas web dinâmicas através do desenvolvimento de um "fórum online sobre património cultural"
Relatório da Prática de Ensino Supervisionada, Mestrado em Ensino da Informática, Universidade de Lisboa, Instituto de Educação, 2020O presente relatório foi concretizado no âmbito da unidade curricular de Iniciação à
Prática Profissional IV do Mestrado em Ensino da Informática do Instituto de
Educação da Universidade de Lisboa. Retrata a intervenção pedagógica na Escola
Secundária Gago Coutinho, numa turma do segundo ano do Curso Profissional de
Técnico de Gestão e Programação de Sistemas Informáticos na disciplina de Redes de
Comunicação e concretamente no final do módulo cinco: “Desenvolvimento de
Páginas Web Dinâmicas” com a duração de catorze tempos letivos de quarenta e cinco
minutos de prática de ensino supervisionada. Em virtude da suspensão das aulas
presenciais por ordem do Governo a dezasseis de março de 2020 devido à pandemia
COVID-19, quatro tempos decorreram presencialmente e dez tempos letivos
decorreram à distância de forma síncrona via Zoom.
Os conteúdos programáticos abordados foram os seguintes: sessões, cookies,
tratamento de erros na linguagem PHP (PHP: Hypertext Preprocessor) e a
consolidação de conhecimentos em linguagens PHP, HTML (Hyper Text Markup
Language), CSS (Cascading Style Sheets) e SQL (Structured Query Language), que
permitiram criar um fórum online sobre o património do concelho de Vila Franca de
Xira que se enquadrou no tema do DAC (Domínio de Autonomia Curricular) da turma.
Foi realizado um trabalho interdisciplinar e de articulação curricular privilegiando o
trabalho prático e o desenvolvimento das capacidades de pesquisa, relação e análise,
com vista ao desenvolvimento das áreas de competências inscritas no Perfil dos Alunos
à Saída da Escolaridade Obrigatória.
No decorrer da prática de ensino supervisionada foram usadas várias metodologias,
nomeadamente a ativa, interrogativa e também a expositiva, de modo a minimizar as
dificuldades identificadas por alguns autores no ensino dos princípios da programação
aos alunos.
Por fim, com o objetivo de avaliar de forma contínua as atitudes, o trabalho
desenvolvido pelos alunos e a aquisição de conhecimentos, foram utilizadas
ferramentas de avaliação diagnóstica, formativa e sumativa.The following report was accomplished in the curricular unit ambit of Initiation to
Professional Practice IV Master’s Degree in Computer Science Teaching at Lisbon
University, Educational Institute. The pedagogical intervention retracts the Secondary
School Gago Coutinho, of an A-levels class from a Professional and Technical course
in Management and Computer Systems Developer, considering the subject of
communication networks, more precisely at the end of the 5th unit: “Dynamic Web
Pages Development” the supervised teaching practice had the duration of 14 academic
days which lasted 45 minutes each. Due to the COVID-19 pandemic, school
suspension of presential classes was ordered by the government, March 16th of 2020,
so only 4 academic days were attended. The remaining 10 occurred in long-distance
learning synchronously using Zoom.
The addressed programmatic contents were the following: sessions, cookies, language
error treatment PHP (PHP: Hypertext Preprocessor) and knowledge in languages
consolidation in PHP, HTML (HyperText Markup Language), CSS (Cascading Style
Sheets) e SQL (Structured Query Language), which allowed to create an online forum
about Vila Franca de Xira municipality Patrimony, and framed the theme CAD
(Curricular Autonomy Dominance) of the class. An interdisciplinary work was carried
out in the curricular articulation, privileging the practical work. Development of
searching capabilities, relationship association, and analyse. Considering this, the
intent is to develop the several knowledge areas enrolled in the student’s profile when
they exit the obligatory schooling.
During the practicing supervised taught, several methodologies were used. Such as
active, interrogative, and expositive, to minimize the difficulties presented by some
authors concerning teaching programming principal to students.
To summarize, the objective is: To evaluate the attitudes continuously, the acquisition
of knowledge, and work developed by the students. This became possible using tools
of diagnostic, formative, and summative evaluation
Statistical characteristics of the SOL turbulence in the first divertor plasma operation of W7-X using a reciprocating probe
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