A fast cam driven absorption cell based rocketborne nitric oxide detector

A nitric oxide(NO) detector, making use of a newly developed fast cam-driven absorption cell system is developed for launch on board a Brazilian SONDA III rocket, to measure the height profile of the NO gamma band dayglow emission intensity and thereby to estimate the height profile of the number density of atmospheric NO in the equatorial region. Two absorption cells, one of them containing the gas NO and the other nitrogen are brought in front of the photocathode of a photomultiplier (PM) tube alternately using a cam system. Each cell remains in front of the PM tube for an interval of time fixed by the cam shape. The cam is designed to optimize the time needed for positioning the cells one after the other and also to simplify the operation of the step motor responsible for the movement of the absorption cells. The advantages of this new system over the conventional wheel mounting are also presented.Material digitalizado en SEDICI gracias a la colaboración de la Facultad de Ciencias Astronómicas y Geofísicas (UNLP).Asociación Argentina de Geofísicos y Geodesta

A fast cam driven absorption cell based rocketborne nitric oxide detector

A nitric oxide(NO) detector, making use of a newly developed fast cam-driven absorption cell system is developed for launch on board a Brazilian SONDA III rocket, to measure the height profile of the NO gamma band dayglow emission intensity and thereby to estimate the height profile of the number density of atmospheric NO in the equatorial region. Two absorption cells, one of them containing the gas NO and the other nitrogen are brought in front of the photocathode of a photomultiplier (PM) tube alternately using a cam system. Each cell remains in front of the PM tube for an interval of time fixed by the cam shape. The cam is designed to optimize the time needed for positioning the cells one after the other and also to simplify the operation of the step motor responsible for the movement of the absorption cells. The advantages of this new system over the conventional wheel mounting are also presented.Material digitalizado en SEDICI gracias a la colaboración de la Facultad de Ciencias Astronómicas y Geofísicas (UNLP).Asociación Argentina de Geofísicos y Geodesta

Implementação de ambiente de aprendizagem em equipes de projetos: uma pesquisa-ação

The use of the organizational learning, allied to a well defined structure of corporative education, organized in order to allow the transmission of information, programming and execution of training action and evaluation of the gotten results, allows a management of the individual and collective abilities that generate essential competitive advantages for the organization. This work describes the implantation of a learning environment that allows to the transmission and absorption of the tacit and explicit knowledge in a designers team through an research-action. The bibliographical revision was developed under the concepts of the learning and of the Fifth Discipline of Peter Senge. The research was carried through in the designers team of the ELEB, company of the aeronautical branch, and, in its development, it was identified a routine of work capable to allow the growth of the individual ability and efficient ways of communication of the information in the development of projects. The accompaniment of the growth of the learning was made using a matrix of individual ability, that identified the knowledge, abilities and attitudes of the team members. The development of the research-action occurred at six distinct moments: the wakening of the research, the formal ability, the identification of the project process, the motivation, the identification of the group and the transmission of the knowledge. As result of this research, the increase of the learning through the routine of feedback of projects was evidenced and that the cognitional theory, associate to the construction of a shared vision, composes the best methodology of learning.O uso da aprendizagem organizacional, aliada a uma estrutura bem definida de educação corporativa, organizada de modo a permitir a transmissão de informação, programação e execução de ações de treinamento e avaliação dos resultados obtidos, permite um gerenciamento das competências individuais e coletivas que geram vantagens competitivas essenciais para a organização. Este trabalho descreve a implantação de um ambiente de aprendizagem que permita a transmissão e absorção do conhecimento tácito e explícito em uma equipe de projetos através de uma pesquisa-ação. A revisão bibliográfica foi desenvolvida sob os conceitos da aprendizagem e das cinco disciplinas de Peter Senge. A pesquisa foi realizada na equipe de projetistas da ELEB, empresa do ramo aeronáutico, e, em seu desenvolvimento, foi identificada uma rotina de trabalho capaz de permitir o crescimento da competência individual e meios eficientes de comunicação da informação no desenvolvimento de projetos. O acompanhamento do crescimento da aprendizagem foi feito utilizando-se uma matriz de competência individual, que identificou os conhecimentos, habilidades e atitudes dos membros da equipe. O desenvolvimento da pesquisa-ação ocorreu em seis momentos distintos: o despertar da pesquisa, a competência formal, a identificação do processo de projeto, a motivação, a identificação do grupo e a transmissão do conhecimento. Como resultado desta pesquisa, constatou-se o aumento da aprendizagem através da rotina de realimentação de projetos e que a teoria cognitivista, associada à construção de uma visão compartilhada, compõe a melhor metodologia de aprendizagem