للكاتبين : AMIR A.MAHDY1, M.SHERIF EL-ESKANDARANY1, A.KANDIL1, S. ABD EL ALL 2, S.F.MOUSTAFA3, A.H.AMER1 1 Mining, Metallurgy and Petroleum Eng. Department, Al Azhar University, Nasr City 11371, Cairo, Egypt. 2 Radiation Physics Dept., National Center for Radiation Research and technology, Nasr City, Cairo, Egypt. 3 Central Metallurgical Research and Development Institute, Helwan   ABSTRACT stir and compocasting techniques were used …

 للكاتبين : Mosa E. S.1, Saleh A. M.2, Taha T. A. 3 and El-Molla A. M4 1Mining & Petroleum Eng. Dept., Faculty of Engineering, Al Azhar University 2 Mineral processing, Mining & Petroleum Eng. Dept., Faculty of Engineering, Al Azhar University. 3 Mineral processing, Mining & Petroleum Eng. Dept., Faculty of Engineering, Al Azhar University 4 Hydraulics, Civil Eng. Dept., …

للكاتبين :. Mosa E. S.*, Saleh A. M.**, Taha A. T.*** and El-Molla A. M.**** * Lecturer Assis. Mining & Petroleum Eng. Dept., Faculty of Engineering, Al-Azhar University **Assis. Prof. of Mineral processing, Mining & Petroleum Eng. Dept., Faculty of Engineering, Al-Azhar University. ** Prof. of Mineral processing, Mining & Petroleum Eng. Dept., Faculty of Engineering, Al-Azhar University *** Prof. …

للكاتبين : M. Zidani1, S. Messaoudi1, Z. Boumerzoug1 and T. Baudin2 1: University of Biskra- Department of Metallurgy, BP-145, Algeria 2: Laboratory of Physico-chemistry of Solid State – Building 410 University Paris-South, ICMMO, UMR CNRS 8182, 91405 Orsay Cedex- France ABSTRACT The aim of this work is the comprehension of the evolution of the microstructure and the texture of deformation …

للكاتب : A. M. Omran Mining and petroleum Dept., Faculty of Engineering-Qena, Al-Azhar University ABSTRACT The production of master alloy from aluminium with other alloying elements such as Ti, Sr, V etc… is a main target in aluminium industryies. The main uses of these alloys are: in alloying, grain refining and modification. An Al-V master alloy has been obtained by …

للكاتبين : MAZIAD,A.(*) ; GOUDA,M. (**) (*)Mechanical Engineering Department, 10 th of Ramadan City. (**)Engineering, British University In Egypt,BUE ABSTRACT: Nowadays, in modern countries such as Japan and United States of America, HSLA steels represents an important material in different fields of industry like automotive and constructions for buildings and bridges. For all of that mentioned above , we have …

للكاتبين : Pawel Krzystolik1, Stanislaw Nagy2, Jakub Siemek2, Bartłomiej Jura1 1. Central Mining Institute, Scientific Consultant, Plac Gwarków 1, 40-166 Katowice, Poland 2. AGH University of Science & Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland, ABSTRACT Underground storage of carbon dioxide may be potential technology to decrease of greenhouses gases emission, usually from industry sources. There are a number of …

للكاتبين : I. ELSEAIDY* , M. M. IBRAHIM**, M. M. GHONEIM*** *, ETRR-2, Nuclear Research Center, Atomic Energy Authority, Inshas 13759, Cairo, Egypt ** Metallurgy Department , Faculty of Engineering, Cairo University, Giza, Egypt. *** Metallurgy Department, Nuclear Research Center, Atomic Energy Authority, ETRR-2, Inshas 13759, Cairo, Egypt. ABSTRACT In the present study the accumulative roll-bonding (ARB) process was applied …

للكاتب : S.I.Youseef Mining Dept., TIMS ABSTRACT Helwan is a highly polluted city .Quarrying, Iron & Steel making, and other activities are the main pollution sources. Garawi lime stone quarry belonging to the National Cement Company (NCC) and located near the city of Helwan is selected to describe quarrying operations and to measure their pollution. Quarrying operations include drill-blast technology …

  BY Sabry A. Abdo*, Mohamed A.Y.**, Hassan A.A.El-Sageer***1, Mamdouh Y.H.*** ABSTRACT: The deformation and support load of the first tunnel can be changed due to the excavation of the second tunnel, when it is in the vicinity of an existing tunnel. Severe interaction effect between adjacent tunnels can happen, especially in poorly cemented or heavily fractured rock condition. Severe …