Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!
Sesja wygasła!
Sesja wygasła!
Sesja wygasła!
Sesja wygasła!
Sesja wygasła!
Sesja wygasła!

Znaleziono wyników: 4

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Distributed Fiber-Optic Sensor for Detection and Localization of Acoustic Vibrations

Sifta R., Munster P., Sysel P., Horvath T., Novotny V., Krajsa O., Filka M.

Metrology and Measurement Systems

2015

Vol. 22, nr 1

111--118

A sensing system utilizing a standard optical fiber as a distributed sensor for the detection and localization of mechanical vibrations is presented. Vibrations can be caused by various external factors, like moving people, cars, trains, and other objects producing mechanical vibrations that are sensed by a fiber. In our laboratory we have designed a sensing system based on the Φ-OTDR (phase sensitive Optical Time Domain Reflectometry) using an extremely narrow laser and EDFAs.

Near electromagnetic field measurement of microprocessor

Martinasek Z., Zeman V., Sysel P., Trasy K.

Przegląd Elektrotechniczny

2013

R. 89, nr 2a

203--207

The article describe systematically the electromagnetic (EM) side channels sources and electromagnetic field of the microprocessor and is focused on the best way how to measure the near electromagnetic field of microprocessor. It was suggested and realized several electromagnetic probes and it was performed the measurement regarded to the theoretical background on the testbed with cryptographic module (microprocessor) performed the Advanced Encryption Standard (AES). On the measured waveforms of the electromagnetic emission was studied the influence of probe construction namely two parameters wire diameter and number of turns. In following measurement was studied how induced voltage depending on the distance of measuring coil to microprocessor and the last measurement dealt with position of probe and microchip.

W artykule przedstawiono zagadnienie emisji pola elektromagnetycznego przez mikroprocesor i zawartych w nim informacji o stanie układu. Korzystając z platformy mikroprocesorowej, zaimplementowano AES i dokonano pomiarów sondami cewkowymi, badając zależność indukowanego napięcia od parametrów sondy (grubość drutu, ilość zwojów).

Polyimide - silica hybrid materials

Sysel P., Pulec R., Brožová L., Pientka Z., Bleha M.

Prace Naukowe Katedry Budowy Maszyn. Seria Konferencje / Politechnika Śląska

1998

nr 1, t. 2

91-94

Polyimide-silica hybrid films with covalently bound phases were prepared via a sol - gel process. The starting materials were p-aminophenyltrimethoxysilane terminated poly(amic acid)s of controlled molecular weight and tetramethoxysilane. The actual extent of the sol-gel process was monitored by thermogravimetric analysis. The dependence of the membrane properties on the silica content and/or concentration of bonds between phases was studied.Pč/!

Fluorine-containing polyimides

Sysel P., Sochurek M.

Prace Naukowe Katedry Budowy Maszyn. Seria Konferencje / Politechnika Śląska

1998

nr 1, t. 2

87-90

The preparation of polyimides from 4,4'-(hexafluoroisopropylidene)dipthalic anhydride and fluorine-containing diamines varying in structure (4,4'-(hexafluoroisopropylidene)dianiline and 4,4,-diaminooctafluorobiphenyl) has been studied in order to evaluate the effect of different fluorinated monomers upon their reactivity. The comparison with using non-fluorinated diamines (1,4-bis(4-amino-1,1-dimethylbenzyl) benzene 4,4'-diaminobiphenyl) was made. Model reactions were also used for monitoring the reactivity of these monomers.J