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Hutnik, Wiadomości Hutnicze
2011 Vol. 78, nr 9 779--780
PL Artykuł przedstawia wyniki badań laboratoryjnych, które koncentrowały się na możliwości korzystania z fal mikrofalowych w produkcji surówki żelaza. Omówiono podstawowe aspekty teoretyczne i właściwości promieniowania mikrofalowego. W dalszej części artykułu przedstawiono wyniki badań laboratoryjnyc[...]
EN This article presents the results of laboratory experiments which were focused on the possibility of using microwaves in pig iron production. Initially, basic theoretical aspects and properties of microwave radiation are discussed. The second part of article presents results of laboratory experiment[...]
Optica Applicata
EN Terbium doped zirconium dioxide was successfully synthesized using microwave hydrothermal method. The powder is strongly agglomerated and has mean crystallite size around 6 nm. The density of obtained powders is significantly lower than density of bulk zirconium dioxide indicating the existence of [...]
2008 nr 9 XXII-XXVII
PL Opisano najważniejsze procesy i układy, w których wykorzystano wzajemne oddziaływanie sygnałów pasma mikrofalowego i fal milimetrowych z sygnałami pasm optycznych. Przedstawiono podstawowe techniki transmisji sygnałów mikrofalowych łączami optycznymi oraz sposoby generacji sygnałów mikrofalowych wyk[...]
EN In this paper we present most important phenomena and systems where microwave and optical signals interact with each other. We also present elementary techniques of microwave signal transmission via optical links, optical generation of microwaves and also optical control of microwave devices. Finall[...]
Przegląd Elektrotechniczny
PL Artykuł przedstawia wyniki pomiarów własności dielektrycznych tkanek zwierzęcych, pochodzących z młodych i dojrzałych osobników, wystawionych na pole elektromagnetyczne o częstotliwości w zakresie 0,5-2,5 GHz. Pomiary wykonane zostały na próbkach pochodzących z mięśni, krwi, wątroby i nerek królika.[...]
EN This paper presents measurement results of dielectric properties of young and mature animal tissues in microwave band (0,5-2,5 GHz). Measurements have been realized on rabbit muscle, blood, liver and kidney. The obtained data show a tendency of increasing of relative dielectric constant [epsilon]' a[...]
Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne
2001 nr 7 484-492
PL Omówiono nową generację urządzeń radioliniowych 9600USY firmy Alcatel do zastosowań na obszarach miast. Opisano funkcjonalność urządzeń radioliniowych oraz ocenę ich funkcjonalności z punktu widzenia możliwych zastosowań.
EN The article concerns new generation of urban microwaves of Alcatel. It covers functional description of urban radiolinks of Alcatel and its rating from the possible applications point of view.
Wiadomości Chemiczne
EN In the last few years there has been a growing interest in the use of microwave heating in organic synthesis. The use of such nonconventional reaction conditions reveals several features like: a short reaction time compared to conventional heating, ease of work-up after a reaction, and reduction in [...]
Gaz, Woda i Technika Sanitarna
2005 Nr 2 29-31
EN Methods used in sludge hygienization and conditions for their use. Basic elements of microwave sludge hygienization. Probability of bacteria reduction depending on microwave radiation dose.
Opto - Electronics Review
2017 Vol. 25, No. 4 318--325
EN A metamaterial absorber (MA) based sensor is designed and analysed for various important applications including pressure, temperature, density, and humidity sensing. Material parameters, as well as equivalent circuit model have been extracted and explained. After obtaining a perfect absorption (PA)a[...]
Optica Applicata
2018 Vol. 48, nr 1 105--116
EN A general approach to experimental modeling of Cherenkov and diffraction radiation in vacuum electron devices employing periodic metal-dielectric structures is presented. The potential benefits and drawbacks of this approach to the design of microwave devices are discussed. The approach is based on [...]
Polish Journal of Chemical Technology
EN Calcination and microwave-assisted hydrothermal processing of precipitated zirconium dioxide are compared. Characterization of synthesized products of these two technologies is presented. The infiuence of thermal treatment up to 1200oC on the structural and spectroscopic properties of the so-obtaine[...]
Poznan University of Technology Academic Journals. Electrical Engineering
2012 No. 72 41--48
EN This paper describes through computer simulation the utilization of the interstitial microwave hyperthermia in the treatment of pathological tissues. Electromagnetic field, radiated from coaxial-slot antenna is used to produce a temperature gradient in human tissue. Therefore the presented issue is [...]
Elektronika : konstrukcje, technologie, zastosowania
PL W artykule przedstawiono nową metodę szybkiego anizotropowego trawienia krzemu. W metodzie tej roztwór trawiący aktywowano za pomocą mikrofali i trawienie prowadzono we wnęce mikrofalowej. Określono podstawowe parametry i właściwości tej metody. Stwierdzono, że szybkość trawienia krzemu była nawet k[...]
EN In the paper, a new method of micromechanical, fast anisotropic etching of silicon has been presented. In the method, the microwave activation of the etchant and etching of silicon were carried out in the microwave cavity. The main parameters of the method have been determined. It has been found, th[...]
International Journal of Occupational Safety and Ergonomics
2008 Vol. 14, No. 2 217--222
EN Medical electronic devices and metallic implants are found in an increasing number of workers. Industrial applications requiring intense electromagnetic fields (EMF) are growing and the potential risk of injurious interactions arising from EMF affecting devices or implants needs to be managed. Poten[...]
Polish Journal of Chemistry
2008 Vol. 82, nr 5 1059-1066
EN Michael addition of amides to alfa, beta-unsaturated esters efficiently proceed in the presence of K2CO3 and tetrabutylammonium bromide (TBAB) as a phase-transfer catalyst under microwave irradiation to afford N-alkylated amides in high yields and short reaction times.
Prace Naukowe Instytutu Chemii i Technologii Nafty i Węgla Politechniki Wrocławskiej. Konferencje
EN Properties and structure of the chars and activation products obtained from corncob were investigated. The corncobs carbonisation process has been carried out in the laboratory pipe furnace at 500C or in the microwave furnace (650 W). The activation process of the char was performed in a quartz reac[...]
Kwartalnik Elektroniki i Telekomunikacji
EN Recent results on MMICs based on a 90-nm CMOS process are presented. Linear and nonlinear models were developed for the transistors based on S-parameters, noise parameters, and power spectrum measurements. Based on em-simulations, models for multilayer capacitances, MIM-capacitances, various transmi[...]
Kwartalnik Elektroniki i Telekomunikacji
EN We present a double balanced resistive mixer for mobile applications using a 0.35 um MOSFET-Technology. The mixer has been designed for direct conversion receivers with RF - and IF - frequency ranges of 2-3 GHz and DC to 50 MHz, respectively. Excellent performance has been achieved. Typical values a[...]
International Letters of Chemistry, Physics and Astronomy
2015 Vol. 44 81--89
EN An eco-friendly one-step preparation of various substituted 2-cyanobenzothiazole by condensation of corresponding substituted ortho-aminothiophenol with ethyl cyanoformate, employing an effective amount of Lawesson’s reagent, under microwave irradiation (MWI) and solvent free conditions is presented[...]
Physicochemical Problems of Mineral Processing
EN In this study oxalic, citric, and glycolic acids were used in order to reduce Fe and Ti (colored impurities) from the slimes (-75 μm) feldspar samples using organic acids. The results showed that removal ratios of the colored impurities from the feldspar samples were 67.9% for Fe and 43.75% for Ti u[...]
Przegląd Elektrotechniczny
PL Przedstawiony niżej tekst opisuje potencjalne możliwości, jakie daje zastosowanie tomografii mikrofalowej w detekcji raka stuka. Przytoczone informacje mają charakter wprowadzający w tematykę zagadnienia.
EN The current paper is aimed at describing the potential possibilities created by implementation of microwave tomography to detect breast cancer. The information given below is supposed to introduce the subject.
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