Structure of the isotropic transport operators in three independent space variables

Based on the idea of separation of variables, a spectral theory for the three-dimensional, stationary, isotropic transport operator in a vector space of complex-valued Borel functions results in continuous sets of regular and generalized eigenfunctions

Dissociation of Quarkonium in hot and Dense Media in an Anisotropic Plasma in the Non-Relativistic Quark Model

In this paper, quarkonium dissociation is investigated in an anisotropic plasma in the hot and dense media. For that purpose, the multidimensional Schrodinger equation is solved analytically by Nikiforov-Uvarov (NU) method for the real part of the potential in an anisotropic medium. The binding energy and dissociation temperature are calculated. In comparison with an isotropic medium, the binding energy of quarkonium is enhanced in the presence of an anisotropic medium. The present results show that the dissociation temperature increases with increasing anisotropic parameter for 1S state of the charmonium and bottomonium. We observe that the lower baryonic chemical potential has small effect in both isotropic and anisotropic media. A comparison is presented with other pervious theoretical works.Comment: 11 pages, 10 figures, 1 table

An Intelligent Tutoring System for Teaching Grammar English Tenses

The evolution of Intelligent Tutoring System (ITS) is the result of the amount of research in the field of education and artificial intelligence in recent years. English is the third most common languages in the world and also is the internationally dominant in the telecommunications, science and trade, aviation, entertainment, radio and diplomatic language as most of the areas of work now taught in English. Therefore, the demand for learning English has increased. In this paper, we describe the design of an Intelligent Tutoring System for teaching English language grammar to help students learn English grammar easily and smoothly. The system provides all topics of English grammar and generates a series of questions automatically for each topic for the students to solve. The system adapts with all the individual differences of students and begins gradually with students from easier to harder level. The intelligent tutoring system was given to a group of students of all age groups to try it and to see the impact of the system on students. The results showed a good satisfaction of the students toward the system

Synthesis and Polymerization of 4-Vinylbenzylphenylsulfone

The preparation of new sulfone monomer and polymer based on 4-Vinylbenzylphenylsulfone (4-VBPS) and free radical polymerization was investigated, based on the reaction of chloromethyl styrene with sodium phenyl sulfone (phSO2Na) in dimethylformamide (DMF), using the phase transfer catalysts 18-crown-6. Copolymerization of the prepared sulphone monomer with p-methylstyrene was carried out at 65 ˚C. Nonpolymerizable 4-Ethylbenzylphenylsulfone was also prepared. The prepared monomers and polymers were characterized by different spectroscopic techniques, the number-average molecular weights (Mn) of the resulting polymer was found to be in the range of 70,100 -73,100, with polydispersity indices (Mw/Mn) vary from 1.8 to 1.9. Photolysis of the prepared polysulfone polymer and possible grafting of methyl methacrylate (MMA) monomer will be reported

MORAL RIGHT IN ISLAMIC LAW

The issue of intellectual property rights concerns various aspects, as well as the generous (moral copyright) legal thoughts and legal regulations at the legislative situation within a short period of time. However, was this the right roots derived from the revealed legislation confiscation for centuries? Allah says in the Holy Qur’an: "Indeed, it is We who sent down the Qur’an and indeed, We will be its guardian” (Surat Al-Hijr verse 9). We should save Allah’s Qur’an from every twist and modification, and the Qur’an sources of Islamic law. This is because it is eternity at every time and place. However, we reassure those who are tempted to doubt the greatness of this religion and its universality by providing infallible proofs. The idea of this research is to establish the copyright moral rights in Islamic law, by taking the advantages and indications which is inspired by the Qur’an and the Sunna. Furthermore, we also considered sahaabah’s (Prophet Muhammad companion) unparalleled effort in checking hadiths science, the attributes of the Prophet, the greatest proof of coverage, and the immortality of this religion which is Allah

MORAL RIGHT IN ISLAMIC LAW

The issue of intellectual property rights concerns various aspects, as well as the generous (moral copyright) legal thoughts and legal regulations at the legislative situation within a short period of time. However, was this the right roots derived from the revealed legislation confiscation for centuries? Allah says in the Holy Qur’an: "Indeed, it is We who sent down the Qur’an and indeed, We will be its guardian” (Surat Al-Hijr verse 9). We should save Allah’s Qur’an from every twist and modification, and the Qur’an sources of Islamic law. This is because it is eternity at every time and place. However, we reassure those who are tempted to doubt the greatness of this religion and its universality by providing infallible proofs. The idea of this research is to establish the copyright moral rights in Islamic law, by taking the advantages and indications which is inspired by the Qur’an and the Sunna. Furthermore, we also considered sahaabah’s (Prophet Muhammad companion) unparalleled effort in checking hadiths science, the attributes of the Prophet, the greatest proof of coverage, and the immortality of this religion which is Allah

Ductile crack growth emanating from Sharp Notes in a low Alloy Steel

Stable crack growth behavior emanating from a sharp notch is investigated. Material chosen for tests was EN 34 NiCrMo6 low alloy steel (akin to 4340/4330). Tests were carried out on CT specimens for various angles and ratios to obtain load vs, load-line displacement, Ρ-ΔLL, curves. Experimental results were analyzed. A normalization approach of Ρ-ΔLL curves has been attempted and all experimental curves were represented as a single characteristic curve. Such approach has been also applied on experimental data available from other experimental investigations and results were encouraging, as it may address transferability issue. Fracture surfaces were also examined; crack-front tunneling was obtained using dye penetrant technique to determine extent of stable crack growth. Tests on various notch sizes were also carried out and show that despite more than ten folds increase in notch radius, the maximum load increase recorded for CT was not more than 15%