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National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.00 seconds. 
Simplified model of a axial cooled arc
 Kasal, Ondřej ; Šenk, Josef (referee) ; Lázničková, Ilona (advisor)
Using of computer technology brings advantages of quick and well-arrange data. Computer technology offers change of transferring information the same way as that often using. Capacity and execution of computer technology is depending on kind and size of elaborated information. It is necessary to use to computer technology in application working with big data range and in application which needs many steps to finish calculation it means when we are using iterative methods. It is computer technology which creates main part of simulation, computation and visualization methods which are using in technical application. Plasma is using in many way of industry from technical manufacturing of materials to application in power electronics. Attention is paid to plasma. To description to fourth state of substance and for description to processes in plasma are used mathematic and physic equations. To solve to equations is hard and we need many steps to cover it. It is necessary to use computer technology to work up different method performs to describe electric arc.
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Optimalize Application of Cascade Convection of a Heat Pumps
 Hrnčíř, Zdeněk ; Šenk, Josef (referee) ; Gregor, Jan (advisor)
The introductory part of this diploma work contains a basic thought for the application of the heat pumps cascade connection and further I describe its function and define the notion of an optimum middle temperature.Then the direct comparison of two heats pumps cascade connection with an one-stage heat pump is shown there in a concrete example. The main part of the work is aimed to the determination of the most suitable variant for the heating and for the preparation of a hot service water in a benchmark family house. The systems of heatings are provided in options of a low-temperature floor heating and hot-water radiators. Both types of the heat pumps supply the warm to every heating system. It results into four possibles alternatives of the building heating.Besides of the alternatives mentioned above, a new variant of optimalised cascade connection was arisen during this work elaboration . The first stage of this connection which supplies the warm to the floor heating is disconnected out of the heating season and the second stage provides only a hot service water warming. The results of this work showed us that just this variant of a cascade connection causes savings in energy in comparison with an one-stage heat pump. In the conclusion of this work there are discussed the reached results and indicated the possibilities of a practical exploitation.
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Development of lightweight porous concrete flooring on waste material basis
 Šenk, Josef ; Ševčík, Milan (referee) ; Drochytka, Rostislav (advisor)
This thesis is oriented on lightweight building materials and on development of new leightweight porous concrete flooring on waste material basis.
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