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The state density Correction Function in Pre-Equilibrium Exciton Model for 44Sc, 96M0, 148Sm and 172yB Nuclei

Journal of Physical Science and Application 2016年第1期6卷 115-122页

作者： Rasha S. Ahmed Department of Physics Al-Nahrain University Baghdad Iraq

The particle-hole state density in pre-equilibrium exciton model is required to calculate the cross section in pre-equilibrium nuclear reactions. In order to get a good match between theoretical and experimental data the state density need to be corrected with some corrections. In this work some of the corrections that must be added to the state density have been collected all in an energy dependent correction functionJ~. The effects of adding Pauli Exclusion Principle, bound state, finite depth of the nuclear potential and pairing corrections have been examined to energies up to 100 MeV. The results were obtained using energy dependent single particle level density or the non equi-distant spacing model. Comparisons are made by adding some and full combination of the corrections to get an accurate and convenient choice in pre-equilibrium state density estimations. The results are compared with available experimental （Oslo）, and theoretical （HF-BCS） results. Results have been found matching the previously obtained experimental and theoretical results.

关键词： Pre-equilibrium exciton model state density correction function.

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density Functional Theory Study of Oxygen Atom Adsorption on Different Surfaces of Pyrite

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Journal of Wuhan University of Technology(Materials Science) 2017年第6期32卷 1464-1469页

作者：黄腾雷绍民 JI Mengjiao LIU Yuanyuan FAN Yanming School of Resource and Environment Engineering Wuhan University of Technology Wuhan 430070 China Yichang Huilong Science and Technology Co. Ltd. Yichang 4430041 China

We discussed the oxidation differential and mechanisms on different planes of pyrite. The experimental results show that the oxidation priority is：（222） plane〉（200） plane〉（200） plane, and there is no direct correlation between the crystal plane index, the atom numbers, and the oxidation priority. However, with more exchanged charge among atoms, the oxidation could be conducted more easily, and the distribution rule of the electric charge conforms with the variation trend of adsorption energy, which will provide more overall cognition on the oxidation mechanism of pyrite from the atomic scale.

关键词： DFT pyrite adsorption energy chai e analysis state density

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Quantum Entropy of Black Hole with Internal Global Monopole

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Communications in Theoretical Physics 2005年第2期43卷 382-384页

作者： HANYi-Wen YANGShu-Zheng LIUWen-Biao DepartmentofPhysics DaxianTeacher＇sCollegeDazhou635000China DepartrnentofPhysics ChinaWestNormalUniversityNanchong637002China DepartmentofPhysics BeijingNormalUniversityBeijing100875China

Using the generalized uncertainty relation, the new equation of state density is obtained, and then the entropy of black hole with an internal global monopole is discussed. The divergence that appears in black hole entropy calculation through original brick-wall model is overcome. The result of the direct proportion between black hole entropy and its event horizon area is drawn and given. The result shows that the black hole entropy must be the entropy of quantum state near the event horizon.

关键词： generalized uncertainty relation state density quantum entropy black hole

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