Zobrazeno 1 - 10
of 52
pro vyhledávání: '"K. Alfaramawi"'
Autor:
K. Alfaramawi
Publikováno v:
Polymer Bulletin. 75:5713-5730
Optical and dielectric dispersion parameters for butyl rubber–general purpose furnace carbon black (IIR-GPF CB) composites with various carbon black (CB) concentrations were determined using ultraviolet transmittance spectra. X-ray diffraction (XRD
Publikováno v:
Applied Radiation and Isotopes. 176:109890
PM-355 polymeric solid state nuclear track detectors were studied. Samples were irradiated with alpha particles before and after exposure to sunlight under various seasonal conditions. Track formation and optical characteristics of chemically etched
Publikováno v:
Journal of Electronic Materials. 47:1665-1672
Electrical properties of butyl rubber filled with General Purpose Furnace (GPF) carbon black were studied. The carbon black concentration (X) in the compound was X = 40, 60, 70, 80, and 100 parts by weight per hundred parts by weight of rubber (phr).
Autor:
K. Alfaramawi, Talal Mohammed Alrashidi, M. S. AlGarawi, Syed Mansoor Ali, M. R. Baig, S. S. Al-Ghamdi, W. A. Farooq
Publikováno v:
Applied Radiation and Isotopes. 128:287-291
Pre- and postalpha-exposed PM-355 detectors were irradiated using UV laser with different number of pulses (100, 150, 200, 300, and 400). UV laser beam energy of 20mJ per pulse with a pulse width of 9ns was incident on an area of 19.6mm2 of the sampl
Publikováno v:
Radiation Physics and Chemistry. 130:451-458
The effect of alpha irradiation before and after solar exposed PM-355 polymeric SSNTDs films was investigated. The absorption spectra for both non-irradiated and irradiated samples at different solar exposure time in different months showed a shift i
Publikováno v:
Radiation Measurements. 86:49-55
Optical properties of super-grade PM-355 polymer films were studied after solar irradiation with different durations of solar exposure in different months. Results of X-ray diffraction (XRD) analysis showed that a large and wide peak occurred at an a
Autor:
K. Alfaramawi
Publikováno v:
Bulletin of Materials Science. 37:1603-1606
The electric field dependence of the electron mobility in bulk wurtzite zinc oxide (ZnO) material is studied. The low-field electron mobility is calculated as a function of doping concentration and lattice temperature. The results show that above nea
Autor:
K. Alfaramawi
Publikováno v:
British Journal of Applied Science & Technology. 4:2241-2250
The electron mobility of zincblende (ZB) and wurtzite (WZ) structures of n-type GaN is investigated as a function of both temperature and donor concentration. Numerical calculations of the mobility are carried out in a temperature range from 10 K up
Publikováno v:
The European Physical Journal Plus. 131
Dielectric measurements were carried out on moderately doped n-InP at low temperatures down to 10 K and at frequencies in the range of 120-105 Hz. The low-temperature asymptotic value of the relative dielectric constant (\( \varepsilon_{r}\)) was fou
Publikováno v:
Thin Solid Films. 519:681-685
ZnTe layers have been grown on a (111) oriented CdTe single crystal substrate by vacuum thermal evaporation technique. The growth temperature was 180 °C at a base pressure of 10 − 4 N/m 2 . The as-grown samples were investigated by X-ray diffracti