The British University in Egypt is a private Egyptian university in El Sherouk, Cairo Governorate, Egypt. Founded in September 2005, through an inter governmental agreement, the University provides a British style of education and awards degrees validated by its partner UK universities and the Egyptian Supreme Council. Located some 30 km from downtown Cairo, the campus covers approximately 40 acres of land with some 27000 m² space of modern purpose-built teaching facilities. Employers regard these skills highly. BUE is not only an educational institution, but also a thriving academic, social and cultural centre with much to offer students of any age, nationality or social background. Wikipedia.
Kajiyama Y.,Estonian National Institute of Chemical Physics and Biophysics |
Kajiyama Y.,Niigata University |
Okada H.,The British University in Egypt
Nuclear Physics B | Year: 2011
We study a new flavor symmetric model with non-Abelian discrete symmetry T13. The T13 group is isomorphic to Z13⋊Z3, and it is the minimal group having two complex triplets in the irreducible representations. We show that the T13 symmetry can derive lepton masses and mixings consistently. Moreover, if we assume a gauge-singlet fermionic decaying dark matter, its decay operators are also constrained by the T13 symmetry so that only dimension six operators of leptonic decay are allowed. We find that the cosmic-ray anomalies reported by PAMELA and Fermi-LAT are well explained by decaying dark matter controlled by the T13 flavor symmetry. © 2011 Elsevier B.V.
Nashed G.G.L.,The British University in Egypt
International Journal of Modern Physics D | Year: 2015
A nondiagonal tetrad field having six unknown functions plus an angle Φ, which is a function of the radial coordinate r, azimuthal angle θ and the polar angle φ, is applied to the charged field equations of modified teleparallel theory of gravity. A special nonvacuum solution is derived with three constants of integration. The tetrad field of this solution is axially symmetric and its scalar torsion is constant. The associated metric of the derived solution gives Kerr-Newman spacetime. We have shown that the derived solution can be described by a local Lorentz transformations plus a diagonal tetrad field that is the square root of the Kerr-Newman metric. We show that any solution of general relativity (GR) can be a solution in f(T) under certain conditions. © 2015 World Scientific Publishing Company.
Ayoub B.M.,The British University in Egypt
RSC Advances | Year: 2015
The first UPLC method for simultaneous determination of empagliflozin, linagliptin and metformin hydrochloride in the different combinations of their pharmaceutical dosage forms was developed. Chromatographic separation was achieved on a Symmetry® Acclaim™ RSLC 120 C18 column (100 mm × 2.1 mm, 2.2 μm) applying isocratic elution based on potassium dihydrogen phosphate buffer pH (4)-methanol (50 : 50, v/v) as the mobile phase. The linearity, accuracy and precision were found to be acceptable over the concentration ranges of 1-32 μg mL-1, 0.5-16 μg mL-1 and 1-100 μg mL-1 for empagliflozin, linagliptin and metformin hydrochloride, respectively. All the variables were studied to optimize the chromatographic conditions. The optimized method was validated and proved to be suitable for the quality control of the mentioned drugs in their different pharmaceutical dosage forms. © The Royal Society of Chemistry.
Abdalla H.F.,The British University in Egypt
International Journal of Pressure Vessels and Piping | Year: 2014
No experimental data exist within open literature, to the best knowledge of the author, for determining shakedown boundaries of 90° back-to-back pipe bends. Ninety degree back-to-back pipe bends are extensively utilized within piping networks of nuclear submarines and modern turbofan aero-engines where space limitation is considered a paramount concern. In the current research, the 90° back-to-back pipe bend setup analyzed is subjected to a spectrum of steady internal pressures and cyclic in-plane bending moments. A previously developed direct non-cyclic simplified technique for determining elastic shakedown limit loads is utilized to generate the elastic shakedown boundary of the analyzed structure. The simplified technique outcomes showed excellent correlation with the results of full elastic-plastic cyclic loading finite element simulations. © 2014 Elsevier Ltd.
Abdalla H.F.,The British University in Egypt
Nuclear Engineering and Design | Year: 2014
In the current research, a non-cyclic simplified technique is utilized to determine the elastic shakedown limit moments of a cylindrical vessel-nozzle intersection. The determined shakedown limit moments are utilized to generate the elastic shakedown boundary and the Bree diagram of the structure. The structure is subjected to a spectrum of steady internal pressure magnitudes and cyclic out-of-plane bending moments on the nozzle. The generated Bree diagram is compared with previously generated Bree diagram of the same structure, but subjected to in-plane bending. Noticeable differences regarding the magnitudes of the generated shakedown boundaries are observed. Moreover, only failure due to reversed plasticity response occurs upon exceeding the generated shakedown boundary unlike cyclic in-plane bending where the structure experienced both reversed plasticity and ratchetting failure responses. The simplified technique outcomes showed excellent correlation with the results of full elastic-plastic cyclic loading finite element simulations. © 2013 Elsevier B.V.