285 research outputs found

    Internal conversion coefficients for superheavy elements

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    The internal conversion coefficients (ICC) were calculated for all atomic subshells of the elements with 104<=Z<=126, the E1...E4, M1...M4 multipolarities and the transition energies between 10 and 1000 keV. The atomic screening was treated in the relativistic Hartree-Fock-Slater model. The Tables comprising almost 90000 subshell and total ICC were recently deposited at LANL preprint server.Comment: 6 pages including 3 figures, needs files myown.sty and epsfig.sty (both included

    Two-cylinder four stroke spark ignition flat engine

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    Tato diplomová práce se zabývá možnostmi návrhu klikové hřídele pro dvouválcový čtyřdobý plochý zážehový motor, použitelný do městského vozidla. V práci je uvedeno silové působení na klikový mechanizmus, možné vyvážení klikové hřídele, torzní namáhání a výpočtová metoda kontroly pevnosti. V závěrečné části práce je nastíněn návrh klikové hřídele.This thesis deals with the possibilities for realization of the crankshaft-cylinder four-stroke gasoline engine is flat, usable in the urban vehicle. In the work described stresses exerted on the crank mechanism can balance the crankshaft, torsional stress and strength calculation method of control. In the final part of this work is outlined proposal for implementation of the crankshaft.

    Variable compression ratio for an internal combustion engine

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    Tato bakalářská práce se zabývá popisem výhod a nevýhod konstrukcí s proměnným kompresním poměrem použitých v minulosti, současnosti a reálně použitelných do budoucnosti v závislosti na současném trendu moderního vývoje v konstrukci motorů.This bachelor thesis describes the advantages and disadvantages of structures with variable compression ratio used in the past, present, and realistically applicable in the future depending on the current trend of modern developments in engine design.

    Electrical equipment of sporting simulator

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    This paper describes development of stationary bike, which is able to produce and store electrical energy. Device consist of BLDC motor, used as generator, connected to stationary bike and power electronics managing the flow of the energy. Electrical energy from the generator can be stored in battery, used to supply external devices or as the last option “burned” in power resistor
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