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Sanya, China

Qiongzhou University is a university located in Sanya city , in Hainan, China.Quongzhou University is in the process of moving from its old location in the center of the island to its current location in Sanya, which is at the most southern part of the island of Hainan. The University is also in the process of a name change, in the near future it will be changed to Sanya University.The school is located in one of the most beautiful parts of the world, it is by far the most tropical part of China and receives visitors from around the world, especially Russians who enjoy the warm tropical weather in the middle of the coldest time of the year. Sanya has endless white sand beaches, which seem to go on forever. These beaches are in the downtown area with numerous restaurants and shopping areas within walking distance. Unfortunately these beaches are usually overly crowded with tourist and locals, but if one were to leave the city center one would find endless deserted virgin beaches.Quongzhou University has about 10,000 students from all over China. Most of them are interested in learning something connected to the tourist industry, so English is a must. The school is located just outside of town to the west of Sanya. All the buildings are modern and recently constructed; resounded by tropical rolling green hills. Quongzhou University places great importance to the liberal arts, which are usually neglected by most Chinese universities. . Wikipedia.


Liu J.-J.,Qiongzhou University
Monthly Notices of the Royal Astronomical Society | Year: 2014

Using the theory of relativity in superstrong magnetic fields (SMFs) and a nuclear shell model, we carry out an estimation of electron capture (EC) rates on iron-group nuclei in SMFs. The rates of change of electronic abundance (RCEA) due to EC are also investigated in SMFs. It is concluded that the EC rates of most iron-group nuclides are increased greatly by SMFs, by an amount sometimes even exceeding nine orders of magnitude. On the other hand, RCEA is influenced greatly by SMFs and reduced by more than eight orders of magnitude in the EC reaction. We also compare our results with those of Fuller et al. (FFN) and Aufderheide et al. (AUFD) in cases with and without SMFs. The results show that our results are in good agreement with AUFD's, but FFN's rates are close to one order of magnitude higher than ours in the case without SMFs. In contrast, our calculated rates for most nuclides in SMFs are increased and even exceed FFN's and AUFD's results, which is in the case without SMFs, by as much as nine and eight orders of magnitude, respectively. © 2013 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society. Source


Liu J.-J.,Qiongzhou University
Monthly Notices of the Royal Astronomical Society | Year: 2013

According to the shell-model Monte Carlo method, based on the random-phase approximation and linear response theory, we carried out an estimation of electron capture (EC) of the strongly screening nuclides 56Fe, 56Co, 56Ni, 56Mn,56Cr and 56V during strong electron screening (SES) in pre-supernovae. The EC rates are decreased greatly and may even exceed 21.5 per cent in the case of SES. We also compare our results with those calculated by the method of Aufderheide in the case of SES. Our results agree reasonably well with those of Aufderheide in higher density and temperature surroundings (e.g. ρ7 > 60, T9 = 15.40) and the maximum error is ~0.5 per cent. However, the maximum error is ~13.0 per cent in lower density surroundings (e.g. 56Cr at ρ7 = 10, T9 = 15.40, Ye = 0.41).We also compared our results for SES with those of Fuller, Fowler & Newman and Nabi, which apply to a case without SES. The comparisons show that our results are lower than those of Fuller, Fowler & Newman by more than one order of magnitude and about 7.23 per cent lower than those of Nabi. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Source


Liu J.-J.,Qiongzhou University
Chinese Physics C | Year: 2013

Based on the theory of relativity in superstrong magnetic fields (SMFs), we have carried out an estimation on electron capture (EC) rates of nuclides 52,53,54,55,56Fe in the SMFs in magnetars. The rates of change of electronic fraction (RCEF) in the EC process are also discussed. The results show that the EC rates increase greatly and even exceeds by 4 orders of magnitude (e.g. 54Fe, 55Fe and 56Fe) in SMF. On the contrary, the RCEF decreases largely and even exceeds by 5 orders of magnitude in the SMF. © 2013 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd. Source


Liu J.-J.,Qiongzhou University
Astrophysics and Space Science | Year: 2013

Using Shell-Model Monte Carlo (SMMC) method and Random Phase Approximation (RPA) theory, the electron capture (EC) and the electron capture cross section (ECCS) of nuclei 55Co and 56Ni are investigated. We also discuss the rates of the change of electron fraction (RCEF) and the error factor C, which is compared our results with those of AFUD, which calculated by the method of Aufderheide. The results show that the ECCS and the EC rates for 55Co and 56Ni increased about four orders of magnitude at relative high temperature (such as T9=5,7,9). On the other hand, the RCEF for two nuclides decreased greatly, and even exceed four orders of magnitude. The error factor shows ours is agreed reasonably well with AUFD under the higher density surroundings (e. g. ρ7=106, Ye=0. 43; ρ7=506, Ye=0. 42; ρ7=4010, Ye=0. 41). But under the lower density surroundings (e. g. ρ7=3. 36, Ye=0. 48) the maximum error is ~14. 5 % for 55Co but is ~14. 0 % for 56Ni. The error is ~9. 5 % and ~9. 0 % for 55Co, 56Ni at ρ7=5. 86, Ye=0. 47 respectively. © 2012 Springer Science+Business Media Dordrecht. Source


Liu J.-J.,Qiongzhou University
Chinese Physics C | Year: 2010

Based on Weinberg-Salam theory the bremsstrahlung neutrino energy loss for nuclei 24Mg, 28Si, 32S, 40Ca and 56Fe are investigated in strong electron screening. Our results are compared with those of Dicus' and show that the latter are higher by 2 orders of magnitude in the density-temperature region of 108 g/cm3 ≤ ρ/μe ≤ 1011 g/cm3 and 2.5 ≤ T9 ≤ 4.5. On the other hand, the factor C shows that the maximum differences are 99.16%, 99.13%, 99.12%, 99.055%, 99.040% corresponding to the nuclei 24Mg, 28Si, 32S, 40Ca and 56Fe. © 2010 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd. Source

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