http://hdl.handle.net/11716/12386 2026-04-18T10:45:07Z http://hdl.handle.net/11716/12410 Nowe perspektywy zastosowań stopów z niemieszalnością w stanie w stanie ciekłym Ziewiec, Krzysztof A number of literature data provide information on possibility of formation the amorphous matrix composites. Such composites can be produced alternatively, by introducing the particles prior to casting, or by “in situ” formation of the crystalline phase. The latter aim can be carried out by crystallization of the amorphous matrix or the formation of the crystalline phase during casting. Production of the composite directly from the liquid state, using miscibility gap, presents a new possibility and is justified as regards energy saving because no additional heat treatment to produce the fine crystalline phase is necessary. On the other hand, $Fe-Cu-P$, $Fe-Cu-Si$, $Fe-Cu-B$ systems have a miscibility gap in the liquid phase, therefore we considered the $Fe-Cu-Ni-P-based$ alloys for a series of microstructural experiments. The work presents exemplary microstructures revealed in such alloys. There are the two essential features enabling formation of the amorphous-based composites wih miscibility. The first is the presence of a large volume fraction of the eutectic microstructures and the second one is surface-fractal microstructure typical for the systems with tendency for demixing of liquids. 2011-01-01T00:00:00Z http://hdl.handle.net/11716/12409 Systemy projekcyjne – kierunki i perspektywy rozwoju Zieliński, Jerzy; Olifierczuk, Marek In our paper the principle of the projection display work was introduced. It the principle of work and possible to obtainment parameters for: oil layers, lamp CRT, liquid crystals transducers, and micromirror systems was introduced. The perspective of utilization these systems in projectors of digital cinema was showed. 2011-01-01T00:00:00Z http://hdl.handle.net/11716/12408 Wykorzystanie komputera do badań audiometrycznych Zielińska, Jolanta In the paperpossi bilities of a computer technology application for audiometric hearing ablity were presented. A general concept of computer audiometry was overviewed and modern toolsfor hearing testing were described. The usage of the modern multimedia audiometer MAK and the multichannel bechavioral audiometer was discussed. This way the theoretical and the practical aspects were combined in simple examples. 2011-01-01T00:00:00Z http://hdl.handle.net/11716/12407 Dobór nastaw regulatorów o dwóch stopniach swobody dla obiektów całkujących z opóźnieniem Vítečková, Miluše; Víteček, Antonín; Jaracz, Kazimierz The article describes two tuning methods of PID and PI controllers with two degree of freedom for integrating plants with time delay. The first multiplied dominant pole method is fully analytical method, while the second method is purely empirical. The use of both methods is shown in the example, from which follows possibility of their wide practical using. 2011-01-01T00:00:00Z