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The model law for SF6 insulated systems
(IEEE Transactions on Plasma Science, 2004)
The variation of probability of the electrical breakdown of gases as a result of varying the interelectrode gap value is considered. The relevant analytical expressions have been obtained by treating the electrical discharge ...
Reliability of three-electrode spark gaps
(Plasma Devices and Operations, 2008)
Two types of three-electrode gas-insulated spark gaps have been investigated in this paper: one with the third electrode located inside the main electrode, and the other with a separate third electrode. Three types of ...
X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor
(Materials Science Forum, 2001)
Many properties of chalcogenide amorphous semiconductors, such as electric conductivity, optical constants etc. depend on the type of the structural unit in the amorphous structure i.e. distribution of the nearest neighbor ...
Far-infrared phonon spectroscopy of Cd1-xMnxS quantum dots
(Materials Science Forum, 2004)
Phonon spectra of Cd1-xMnxS (x =0; 0.01; 0.05; 0.1; 0.15; 0.3) quantum dots (dsimilar to4.5 nm) are investigated by far-infrared reflection in the spectral range 80 - 600 cm(-1) and temperature range 80-300 K. The Cd1-xMnxS ...
Magnetotransport properties of CaTixRu1-xO3 (x=0, 0.07)
(Acta Physica Polonica A, 2008)
Electrical resistance, transversal magnetoresistance and the Hall effect were studied on polycrystalline CaTixRu1-xO3 (x = 0, 0.07) samples using a conventional Quantum Design PPMS-9 equipment in the temperature range 2-300 ...
Low temperature anomalies in the specific heat and magnetic susceptibility of Na0.7CoO2 samples
(Acta Physica Polonica A, 2008)
We present a comparative study of Na0.7CoO2 samples obtained from three different sources and prepared by different methods. The specific heat and magnetic susceptibility measurements in the temperature range 2-300 K show ...
Ti-induced ferromagnetism and the specific heat of CaTixRu1-xO3 (x=0, 0.005, 0.03)
(Acta Physica Polonica A, 2008)
The influence of Ti substitution on the specific heat of the CaTixRu1-xO3 system at low concentrations x = 0, 0.005, and 0.03 was studied in the temperature range of 2-300 K at magnetic fields tip to 9 T. Small peak was ...
Apolipoprotein(a) gene polymorphisms (TTTTA)(n) and G/A-914 affect Lp(a) levels in ischemic heart disease patients from Serbia
(Wiener Klinische Wochenschrift, 2005)
Objectives: Lipoprotein(a) (Lp(a)) concentration is determined primarily by the apolipoprotein(a) (apo(a)) gene. The pentanucleotide (TTTTA)n repeat and G/A-914 polymorphisms are in the 5 promoter region of the apo(a) gene. ...
Point of zero charge and isoelectric point of alumina
(Materials and Manufacturing Processes, 2008)
The point of zero charge, pHpzc, and the isoelectric point, pHiep, of a commercial alumina sample was investigated in KNO3 solutions. The influence of the concentration and the initial pH value of KNO3 solution used for ...
SEM and XRD characterization of Ni-Hf alloys at low Hf concentration
(Materials Science Forum, 2006)
The alloying and phase formation in Ni-Hf samples with 0.2-, 2-, and 5-at.% Hf were studied by X-ray diffraction (XRD) technique and scanning electron microscopy (SEM). Both characterization methods, XRD and SEM, reveal ...