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Micromechanical analysis of constraint effect on fracture initiation in strength mismatched welded joints
(Trans Tech Publications Ltd, 2007)
In this paper the micromechanical approach to ductile fracture was applied in a study of constraint effect on crack growth initiation in mismatched welded joints. The single-edged notched bend specimens (precrack length a ...
Numerical and analytical modeling of elastic-plastic fracture mechanics parameters
(Trans Tech Publications Ltd, 2007)
Structural integrity and service reliability depend on the fracture resistance of a material. Cracks in the material are the locations of stress concentration, and elastic-plastic deformation can occur causing the development ...
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 ...
Modeling and investigation of SiGe based MOSFET structure transport characteristics
(Trans Tech Publications Ltd, 2007)
The focus of this paper was the investigation and modeling of transport characteristics in a strained SiGe based MOSFET structure, which might be of fundamental importance for the understanding of its operating characteristics. ...
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 ...
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 ...
The influence of ideality factor on fill factor and efficiency of solar cells
(Trans Tech Publications Ltd, 2000)
The most important output characteristics of solar cells, fill factor and efficiency strongly depend on fundamental physical properties of semiconductor materials, such as mobility. lifetime of charge carriers, diffusion ...
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 ...