Global ETD Search

131	Diffusion de la lumière par des agrégats irréguliers: simulations numériques et expérimentales, applications aux petits corps dans le système solaire Lasue, Jérémie A.F. 29 September 2006 (has links) Les particules cométaires sont des témoins de l’évolution du système solaire, dont les caractéristiques peuvent être estimées à partir de la lumière qu’elles diffusent et émettent.<p>Je montre qu’un modèle de diffusion lumineuse par un nuage d’agrégats fractals et de sphéroïdes permet d’interpréter, en fonction de la distribution en taille et des matériaux constitutifs, des observations polarimétriques en angle de phase et longueur d'onde. Le modèle est en particulier appliqué à la comète Hale-Bopp, et au milieu interplanétaire en modélisant aussi les observations thermiques.<p>Je développe des outils de diffusion lumineuse (numériques et expérimentaux) pour analyser des agrégats analogues aux particules protoplanétaires qui seront formés avec ICAPS à bord de l’ISS. De façon complémentaire, une simulation expérimentale en vol parabolique avec PROGRA2 me permet de déterminer les propriétés physiques de microparticules d’intérêt astrophysique par des mesures polarimétriques.<p> / Doctorat en sciences appliquées / info:eu-repo/semantics/nonPublished Sciences exactes et naturelles Physique Light -- Scattering Comets Hale-Bopp comet Lumière -- Diffusion Comètes Hale-Bopp, Comète Solar system Système solaire polarisation diffusion lumineuse température agrégats expérience en micropesanteur
132	The use of technology in meeting science reform criteria: Can web-based instruction promote scientific literacy? Vogt, Karen Fay 01 January 1999 (has links) Science educators are currently facing the challenge of reforming the practices of science education. Publications of various science and educational organizations have established new criteria for accomplishing this goal. The new goal of science educators is scientific literacy for all. Science -- Computer-assisted instruction Science -- Study and teaching Educational change -- Science Science -- Computer network resources Technology -- Study and teaching Solar system -- Study and teaching Science and Mathematics Education
133	Analýza tepelné spotřeby objektu / Analysis of Heat Energy Consumption of Buildings Houzar, Tomáš January 2017 (has links) Master’s thesis is focused on analysis of thermal consumption in the buiding. This work describes current state of family house and possible suggestions for heating and water heating. Part of solution is created program, which supposed to serve as universal calculation program for design and economic evaluation of suggested solar systém and allows a comparison between commonly used sources for heating and water heating.
134	Měření a regulace počítačem řízených solárních systémů: Vizualizace energetických systémů / Measuring and regulation of computer controlled solar systems: Vizualization of energetic systems Vlčnovská Kotlíková, Silvie January 2008 (has links) This work is oriented on study and evaluation of performance of real operating solar system. There was made analysis of actual technological unit and there was suggested mode of measuring of nodal parameters. There was made interconnection between the head operating unit of the solar system and the web server. And there was prepared software for grafical image of time and temperature dependence and for data transfer to ready web application. It primarily talks about increase of efficiency of real technological unit through regulating of parameter that is using up of accumulated energy.
135	Vyhodnocení ekonomické efektivnosti solárního systému / Analysis of the economic efficiency of a solar system Mikl, Antonín January 2009 (has links) The Master’s thesis deals with the processing of solar thermal systems for heating hot water, outdoor swimming pool and heating selected house. Introduces us how we can use the sun for the production of thermal energy through solar collectors. Furthermore, the basic components of the solar system and the types of collectors used. After this summary on the present state be the calculation of the system and fixing the price of the investment. The economic part of the evaluate if this system to invest, eventually appoint a return on investment.
136	Energetické hodnocení obytných budov / Energy Evaluation of Residential Buildings Fojtů, Pavel January 2013 (has links) This master thesis offers two cost-saving measures to reduce the energy consumption of a residential building. These measure include insulation of the building envelope, domestic hot water by solar colectors and heat recovery.
137	Návrh otopného systému pro nízkoenergetický rodinný dům / Design of heating system for low-energy family house Kytýrová, Zdeňka January 2008 (has links) This diploma thesis deals with the design of a heating system for a "low-energy" house. It is conceived as a low temperature system using a combination of radiators and underfloor heating. The design is supplemented with a calculation of heat loss, a proposal of needed components, a scheme of the system and means of regulation. The second part solves the heat source selection. A solar system with vacuum tubes is used as the primary source. The second one is an electrical water heater located in the accumulation reservoir for the hot domestic water. Necessary calculations for the design of the solar system, together with a scheme and means of regulation, are enclosed in this section.
138	Návrh solárního ohřevu vody a solárního přitápění v rodinném domě / Design of a solar space and DHW heating system for a detached dwelling Čukat, Stanislav January 2012 (has links) The master’s thesis deals with the design of solar assisted space heating and domestic hot water (DHW) heating in a detached single family dwelling. The thesis contains the heating load calculations as well as the calculation of the energy consumption for space and DHW heating. The thesis also contains the actual design and sizing of the heating system including the drawings. A simulation of solar heating was carried out with the use of the TRNSYS simulation tool in order to assess the yield of the solar heating system.
139	Heating of building with almost zero energy consumption / Heating of building with almost zero energy consumption Kubátová, Anna January 2012 (has links) The aim of the thesis is to model energetic needs for heating and temperatures progress in the building with almost zero energy consumption. The part of the work is the economical and energetic comparison. Proposed systems are based on a knowledge of active houses.
140	Deployment, Management, & Operations of Internet Routers for Space-Based Communication Sims, Zack A. 25 August 2015 (has links) No description available. Aerospace Engineering Communication Information Science Information Systems Information Technology Technology Space Internetworking Delay Tolerant Networking DTN IP Internet Protocol Solar System Telecommunications Tracking Telemetry and Command Network Management Deployment Management and Operations Financial Analysis Technical analysis

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