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Pateikiami temperatūrinių gradientų tyrimai: kintant aplinkos temperatūrai lauke, temperatūros pakyčių šaltinių įtaka, mikroskopo ir pavarų įtaka, bazavimo vakuumu įtaka, lazerio spindulio įtaka formuojant brūkšnį. Aprašoma temperatūros matavimo metodika. Apibendrinami temperatūros matavimų rezultatai, padaromos išvados. / The research of temperature gradient: changeable ambient temperature in outside, temperature alteration beginning influence, microscope and speed influence, vacuum base influence, laser ray influence formation in the line. The technique of measurement of the temperature is described. Results of the temperature measurement are generalized, conclusions are made.

Made available in DSpace on 2016-04-04T18:31:17Z (GMT). No. of bitstreams: 1 Carlos Roberto Schimidt.pdf: 1673709 bytes, checksum: bfff1e1a4d903d3af1ffd35db6413138 (MD5) Previous issue date: 2007-02-08 / Optical wavelength converters (OWC) are devices that can reduce congestion and improve the efficiency of the next generation of wavelength division multiplexing (WDM) optical networks. Currently, our research group is developing a prototype of this converter in the Kyatera Project funded by Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP). In this perspective, the objective of this work was to implement an open source software to dynamically manage the wavelength converter prototype in an all optical network. This task was performed in two phases. In the first one, the Telecommunications Management Network (TMN) functionalities were utilized to define the device parameters that should be managed. After this, a management information base (MIB) was structured for the OWC. In the second phase, a SNMP agent was developed and implemented in order to allow the communication between network management and the OWC MIB. Both software programs were tested and worked as expected. The software programs could also be utilized in the communication between a central management and optical nodes that do not perform wavelength conversions or after some adjustments, to manage other all-optical devices. Therefore, this effort may contribute with other research groups or companies that need to evaluate new optical network technologies, such as routing wavelength assignment algorithms and the monitoring of signal quality. For those interested, an appendix fully describes the procedures for managing new devices. / Conversores ?pticos de comprimento de onda s?o equipamentos que podem reduzir o congestionamento e aumentar a efici?ncia da pr?xima gera??o de redes ?pticas com multiplexa??o por divis?o em comprimentos de onda (wavelength division multiplexing, WDM). Atualmente, nosso grupo de pesquisas est? desenvolvendo um prot?tipo deste conversor dentro do Projeto KyaTera promovido pela Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP). Neste contexto, o objetivo deste trabalho foi o de implementar um software de c?digo aberto capaz de gerenciar, de maneira din?mica, a opera??o do conversor em uma rede totalmente ?ptica. Para isso, o trabalho foi dividido em duas etapas. Na primeira, as fun??es de gerenciamento do modelo Telecommunications Management Network (TMN) foram utilizadas para definir os par?metros de gerenciamento do equipamento. A partir destas defini??es, estruturou-se e implementou-se uma Management Information Base (MIB) para o referido equipamento. A segunda etapa consistiu em desenvolver e implementar um agente Simple Network Management Protocol (SNMP) capaz de realizar a comunica??o entre a ger?ncia de redes e a MIB do equipamento conversor. Ambos os softwares foram testados e funcionaram de acordo com o esperado. O software desenvolvido tamb?m pode ser utilizado para realizar a comunica??o entre uma ger?ncia centralizada e n?s ?pticos que n?o fa?am a convers?o de comprimentos de onda ou, mediante pequenas adapta??es, pode ser usado para gerenciar outros equipamentos de redes totalmente ?pticas. Por essas raz?es, o trabalho pode ser ?til para outros grupos de pesquisa ou para empresas que necessitem avaliar novas tecnologias em redes ?pticas, como a implementa??o de algoritmos de aloca??o de comprimentos de onda ou de estrat?gias para a monitora??o da qualidade de sinais. Com o intuito de auxiliar o trabalho de outros grupos que precisem realizar a ger?ncia de equipamentos, um ap?ndice dessa disserta??o tamb?m apresenta uma descri??o detalhada dos procedimentos (nem sempre explicitamente indicados na literatura) necess?rios para atingir esse objetivo.

Graduation thesis describes basic data about Sun, suns constant, solar radiation thoroughfare by the earth's atmosphere. Thesis describes effects of components of optical radiation and physical character of solar radiation. Thesis also describes character of day lighting in nature, spectral distribution of natural lighting, average time of sunshine. The next point of thesis is description of measuring equipment Konica Minolta. In chapter measuring procedure is described measuring process of the sky radiance. Measurement analysis is mentioned in conclusion.

The work deals with mathematical modeling of wind waves on water reservoirs and their effects on different types of slopes. The research work was carried out using a vast array of available literature written on this topic in the Czech Republic and partly abroad. And we also deal with the hydrodynamics problems, creating mathematical and numerical model Further simulations were created in two numerical models. Simulations were created in two programs FLOW-3D and DualSPHysics. Vast variety of situations was created in DualSPHysics program because it seems more appropriate for modeling of this situation. It was created twenty-seven simulations and their results are compared with results coming from valid Czech standard ČSN 75 0255.