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Aging of solar cells under working conditions
(National Institute of Optoelectronics, 2007)
Rapid development and wide application of photovoltaic (PV) solar systems are primarily based on thorough investigations of the characteristics of solar cells. Though proved to be relatively stable (except perhaps amorphous ...
Models of interactions of laser beams with materials of interest for optical components and provoked damages
(Polish Academy of Sciences, 2007)
Models of interactions of laser beams with materials of interest for optical components are presented in this paper. Special attention is paid to damages which appear within both active materials and optical components ...
Monte Carlo calculation of x-rays deposited energy in CdZnTe detector
(Trans Tech Publications Ltd, 2007)
CdZnTe detectors have been employed in diagnostic X-ray spectroscopy. This paper presents the Monte Carlo calculation of X-ray deposited energy in a CdZnTe detector for different energies of photon beam. In incident photon ...
Laser light scattering in spray system control
(Trans Tech Publications Ltd, 2002)
A technique applicable to spray systems research and control, based on the measurements of the spatial frequency of scattered light intensity, is presented. Phase Doppler anemometry - a frequently used technique in spray ...
Ash from thermal power plants as secondary raw material
(Arhiv za Higijenu Rada i Toksikologiju, 2007)
The basic characteristic of thermal power plants in the Republic of Serbia is that they use low-grade brown coal (lignite) as a fuel. Depending on the location of coal mines, lignite may have different properties such as ...
Electrical conductivity of fullerene derivatives
(Trans Tech Publications Ltd, 2002)
In this paper electrical conductivity of fullerene derivatives was investigated. Compared with pure fullerene (molecule C-60), which is an insulator (10(-12) Sm-1), the measured C-60(OH)(24) shows several order of magnitude ...
Different aspects of electrochemical investigations of carbon soot containing endohedral fullerenes and C60 molecules in neutral and alkaline electrolytes
(Trans Tech Publications Ltd, 2002)
In this paper we report the results of our investigation of different electrochemical activities of pure carbon dust, pure metals (Cu and Zn), pure fullerence C60 (99.95% purity), different mixtures of these materials, and ...
Influence of radiation effects on the electrical characteristics of photodetectors
(Trans Tech Publications Ltd, 2002)
Radiation effects in photodetectors (photodiodes) induced by various sources and fluences were studied in this paper. The influence of irradiation was determined by forward current-voltage (I-V) measurements of electrical ...
HEMT carrier mobility analytical model
(Trans Tech Publications Ltd, 2005)
In this paper a new analytical carrier mobility model of a heterostructure unipolar transistor, High Electron Mobility Transistor (HEMT), is presented. The influence of the two dimensional electron gas confined in a HEMT ...
Finite element modeling of mechanical properties of particulate composite biomaterials
(Trans Tech Publications Ltd, 2002)
The influence of inclusion geometry and volume fraction on stiffness behavior of a particle hydroxyapatite filled polymer (poly-L-lactide and collagen) matrix composite was investigated by finite element. analysis. The ...