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Antenna solution for future communication devices in mm-wave range
(IEEE Computer Society, 2001)
Different types of printed antennas for millimeter ranges such as high gain (narrow beam) with linear and circular polarization, sector antennas with azimuth angle of 60°, 90° and 180°, and omnidirectional antennas are ...
Introduction of a methyl group in alpha- or beta-position of 1-heteroarylethyl-4-phenyl-piperazines affects their dopaminergic/serotonergic properties
(Wiley-VCH Verlag Gmbh, Weinheim, 2001)
1-(2-Heteroarylalkyl)-4-phenylpiperazines containing methyl group in either the alpha- or the beta-position of the side alkyl chain were synthesized as racemic mixtures. They were evaluated for in vitro binding affinity ...
Structural characteristics of bright copper surfaces
(Journal of Electroanalytical Chemistry, 2001)
In this work, the structures of copper surfaces polished mechanically and polished both mechanically and electrochemically, as well as copper coatings obtained in the presence of basic and top brightening addition agents ...
Broadband printed high gain antenna with wide angle radiation in azimuth
(IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2001)
New broadband printed antenna concept is proposed, able to ensure very high operation bandwidth by simultaneously providing high gain and wide angle coverage in azimuth plane. Typical possible application scenarios are ...
1-D microstrip PBG band-pass filter without etching in the ground plane and with sinusoidal variation of the characteristic impedance
(IEEE Computer Society, 2001)
In this paper a new type of band-pass filter based on (1-D) microstrip photonic band-gap (PBG) is presented. The band-pass filter is a serial connection of two periodic structures with sinusoidal variation of the characteristic ...
Stoichiometric network analysis of autocatalator / Stehiometrijska mrežna analiza autokatalatora
(Nauka, tehnika, bezbednost, 2001)
Stoichiometric network analysis is applied on the autocatalator, the model of the oscillatory chemical reactions. Particularly simple stability condition is evaluated, without approximations.
Investigation of mixed D(2)/5-HT(1A) activity of N-heteroarylmethyl-N-phenylpiperazines, N-heteroarylethyl-N-phenylpiperazines and N-heteroarylpropyl-N-phenylpiperazines
(Govi-Verlag Pharmazeutischer Verlag Gmbh, Eschborn, 2001)
Eight novel N-heteroarylalkyl-N-phenylpiperazines have been synthesized, chemically characterized and evaluated for in vitro binding affinity at the dopamine and serotonin receptors. Synaptosomal membranes of fresh bovine ...
Decomposition of N2O over catalyst cu-ZSM-5: Analysis of reaction model / Razlaganje N2O na katalizatoru Cu-ZSM-5 - analiza modela reakcije
(Nauka, tehnika, bezbednost, 2001)
The model of mechanism of the nitrous oxide (N2O) decomposition over the catalyst Cu-ZSM-5 proposed in 1999 in the article of Ochs and Turek, is adapted for mentioned process in open reactor and analyzed by the stoichiometric ...
The electrocatalytic properties of the oxides of noble metals in the electrooxidation of methanol and formic acid
(Elsevier, 2001)
The electrooxidation of 0.25 M methanol as well as of 0.25 M formic acid was examined on oxides formed on the Au(111) electrode surface in 0.5 M H2SO4 and 0.5 M NaHCO3 at a sweep rate of 0.5 mV/s. In the case of methanol, ...
Far Infrared Reflectivity Properties of BaTiO3 Ceramics
(Carl Hanser Verlag, 2001)
Far-infrared and infrared reflectivity measurements have been made on pure BaTiO3, BaTiO3 doped with 5 mol% LiF and (Ba,Ca,Pb)TiO3 at room temperature in the range between 50 and 1000 cm–1. A fitting procedure, based on a ...