Volume 3, Number 2 (2007)

CONTENTS

Editorial

Design, Development and Testing a Solar Concentrator for Thermoacosutic Cooling Applications
pp. 143--153
Authors: Ehab Abdel-Rahman, Mahmoud Hammam, Mahmoud Salah and Samy Abdel-Mordy

Magnetization Measurements of PdNi, PdCo and ZCuNi Ferromagnetic Thermoseeds
pp. 155--162
Authors: Adly H. El-Sayed, M.M. Mekawy, A.A. EI-Gendy, N.I. EI-Sayed and A.A. Aly

Absence of the Role of Temperature and Size of Pinning Sites on the Occurrence of the Dip Effect
pp. 163--172
Authors: I. M. Obaidat, F. Hamed, M. Benkraouda and U. Al Khawaja

Effects of ?-Irradiation in YBa2Cu3O7 Thick Films and Tl2Ba2Ca2Cu3O10 Tapes
pp. 173--181
Authors: M. Obaidat, B. A. Albiss, F. Hamed and M. A. Al-Akhras

Analysis of high NS - Multiplicity Events Produced in Relativistic Heavy ion Collisions at 4.5A GeV/c
pp. 183--199
Authors: M. Tariq, M. Ayaz Ahmad, Shafiq Ahmad and M. Zafar

Calculation of Source-detector Solid Angle, Using Monte Carlo Method, for Radioactive Sources with Various Geometries and Cylindrical Detector
pp. 201--208
Authors: R. Izadi-Najafabadi and H. Tavakoli-Anbaran

The Temperature Effect on I - Vt Characterization of Heavily Doped SiC Metal Contact
pp. 210--215

Authors: Salah H. Gamal, Fahad M. Al-Marzouki, Saeed S. Al-Ameer and Hussain A. Al- Barakaty

Electron Impact Excitation and Ionization Rate Coefficients and Population Densities of Excited States in Lithium-like Si XII and S XIV
pp. 217--228
Authors: A. I. Refaie