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Science China(Physics,Mechanics & Astronomy) 2016年第3期59卷 60-65页

作者： Qing Feng Li Yong Jia wang xiao bao wang Cai Wan Shen School of Science Huzhou University

The time evolution of both proton and anti-proton v2 flows from Au＋Au collisions at √SNN=7.7 GeV are examined by using both pure cascade and mean-field potential versions of the UrQMD model. Due to a stronger repulsion at the early stage introduced by the repulsive potentials and hence much less annihilation probabilities, anti-protons are frozen out earlier with smaller v2 values. Therefore, the experimental data of anti-proton v2 as well as the flow difference between proton and anti-proton can be reasonably described with the potential version of UrQMD.

关键词： elliptic flow difference UrQMD mean field potential annihilation process

Helium-3 production from Pb+Pb collisions at SPS energies with the UrQMD model and the traditional coalescence afterburner

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Science China(Physics,Mechanics & Astronomy) 2016年第3期59卷 66-69页

作者： Qing Feng Li Yong Jia wang xiao bao wang Cai Wan Shen School of Science Huzhou University

A potential version of the UrQMD （UrQMD/M） transport model and a traditional coalescence model are combined to calculate the production of 3He fragments in central Pb＋Pb collisions at SPS energies 20-80 GeV/nucleon. It is found that the Lorentz transformation in the afterburner influences visibly the 3He yield and should be considered in calculations. The rapidity distribution of 3He multiplicities （including the concave shape） can be described well with UrQMD/M when it stops during tout=（100＋25） fm/c and the coalescence afterburner with one parameter set of （R0,P0）=（3.8 fm, 0.3 GeV/c） is taken into use afterwards.

关键词： rapidity distribution of Helium-3 UrQMD model coalescence model Lorentz transformation

Rapidity distribution of protons from the potential version of Ur QMD model and the traditional coalescence afterburner

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Science China(Physics,Mechanics & Astronomy) 2016年第2期59卷 36-39页

作者： Qing Feng Li Yong Jia wang xiao bao wang Cai Wan Shen School of Science Huzhou University

Rapidity distributions of both E895 proton data at AGS energies and NA49 net proton data at SPS energies can be described reasonably well with a potential version of the Ur QMD in which mean-field potentials for both pre-formed hadrons and confined baryons are considered, with the help of a traditional coalescence afterburner in which one parameter set for both relative distance R_0 and relative momentum P_0,(3.8 fm, 0.3 Ge V/c), is used. Because of the large cancellation between the expansion in R_0 and the shrinkage in P_0 through the Lorentz transformation, the relativistic effect in clusters has little effect on the rapidity distribution of free(net) protons. Using a Woods-Saxon-like function instead of a pure logarithmic function as seen by FOPI collaboration at SIS energies, one can fit well both the data at SIS energies and the Ur QMD calculation results at AGS and SPS energies. Further, it is found that for central Au+Au or Pb+Pb collisions at top SIS, SPS and RHIC energies, the proton fractions in clusters are about33%, 10%, and 0.7%, respectively.

关键词： rapidity distribution of protons UrQMD model coalescence model Lorentz transformation

Abnormal odd-even staggering behavior around^132Sn studied by density functional theory

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Chinese Physics C 2020年第9期44卷 154-161页

作者： Haoqiang Shi xiao-bao wang Guo-Xiang Dong Hualei wang School of Science Huzhou UniversityHuzhou 313000China School of Physics and Engineering Zhengzhou UniversityZhengzhou 450001China

In this work,we have performed Skyrme density functional theory(DFT)calculations of nuclei around^132Sn to study whether the abnormal odd-even staggering(OES)behavior of binding energies around N=82 can be *** the Skyrme forces SLy4 and SkM*,we tested the volume-and surface-type pairing forces and also the intermediate between these two pairing forces,in the Hartree-Fock-Bogoliubov(HFB)approximation with or without the Lipkin-Nogami(LN)approximation or particle number projection after the convergence of HFBLN(PLN).The Universal Nuclear Energy Density Function(UNEDF)parameter sets are also *** trend of the neutron OES against the neutron number or proton number does not change significantly by tuning the density dependence of the pairing ***,for the pairing force that is favored more at the nuclear surface,a larger mass OES is obtained,and vice *** appears that the combination of volume and surface pairing can give better agreement with the *** the studies of the OES,a larger ratio of surface to volume pairing might be ***,in most cases,the OES given by the HFBLN approximation agrees more closely with the experimental *** found that both the Skyrme and pairing forces can influence the OES *** mass OES calculated by the UNEDF DFT is explicitly smaller than the experimental *** UNEDF1 and UNEDF2 forces can reproduce the experimental trend of the abnormal OES around^*** neutron OES of the tin isotopes given by the SkM*force agrees more closely with the experimental one than that given by the SLy4 force in most *** SLy4 and SkM*DFT have difficulties in reproducing the abnormal OES around^*** the PLN method,the systematics of OES are improved for several combinations of Skyrme and pairing forces.

关键词： odd-even mass staggering pairing correlation density functional theory

Sensitivity impacts owing to the variations in the type of zero-range pairing forces on the fission properties using the density functional theory

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Nuclear Science and Techniques 2024年第3期35卷 198-207页

作者： Yang Su Ze-Yu Li Li-Le Liu Guo-Xiang Dong xiao-bao wang Yong-Jing Chen China Nuclear Data Center China Institute of Atomic EnergyBeijing 102413China School of Science Huzhou UniversityHuzhou 313000China

Using the Skyrme density functional theory,potential energy surfaces of^(240)Pu with constraints on the axial quadrupole and octupole deformations(q_(20)and q_(30))were *** volume-like and surface-like pairing forces,as well as a combination of these two forces,were used for the Hartree–Fock–Bogoliubov *** in the least-energy fission path,fission barrier,pairing energy,total kinetic energy,scission line,and mass distribution of the fission fragments based on the different forms of the pairing forces were analyzed and *** fission dynamics were studied based on the timedependent generator coordinate method plus the Gaussian overlap *** results demonstrated a sensitivity of the mass and charge distributions of the fission fragments on the form of the pairing *** on the investigation of the neutron-induced fission of^(239)Pu,among the volume,mixed,and surface pairing forces,the mixed pairing force presented a good reproduction of the experimental data.

关键词： Nuclear fission Density functional theory Pairing force Potential energy surfaces Fission fragment distribution

Prognostic factors of young patients with colon cancer after surgery

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World Journal of Gastroenterology 2006年第9期12卷 1458-1462页

作者： Han Liang xiao-Na wang bao-Gui wang Yuan Pan Ning Liu Dian-Chang wang Xi-Shan Hao Department of Gastrointestinal Ontological Surgery Tianjin Cancer Hospital Tianjin Medical University Tianjin 300060 China

AIM： To investigate the prognostic factors of 96 young patients with colon cancer within a cancer center by univariate and multivariate analysis. METHODS： A total of 723 patients with colon cancer were treated surgically during a period of 10 years. Ninty six of them were 40 years old or younger. R0, R1 and R2 operations were performed in 69 （71.9%）, 4 （4.1%） and 23 patients （24%）, respectively. Left hemicolectomy was performed in 43 patients, right hemicolectomy in 37 patients, transverse colon resection in 9 patients and low anterior resection in 7 patients. Cox multivariate regression analysis was performed to identify predictors of survival. RESULTS： The operation mortality was 0%, 54 patients died within 111 mo after operation due to occurrence or metastases of the tumor. Liver, lung and bone metastases occurred in 3, 1 and 5 patients, respectively. The mean survival time for all patients was 77.9 ± 5.01 mo and the overall 3-, 5- and 10- year survival rates were 66.68%, 58.14% and 46.54%, respectively. In the univariate survival analysis, patient age, type of operation, radical resection, blood transfusion, histological type, diameter of tumor, depth of tumor invasion, lymphatic invasion, distant metastases, liver metastases and TNM stage were found to be predictors of survival in young patients with colon cancer. In the Cox-regression analysis, blood transfusion and lymphatic invasion were determined as independent prognostic factors of survival. CONCLUSIONS： Age, type of operation, radical resection, blood transfusion, histological type, diameter of tumor, depth of tumor invasion, lymphatic invasion, distant metastasis and TNM stage are the predictors of survival in young patients with colon cancer after surgery.

关键词： Prognosis Colon cancer Young patient Surgery

The structure of neutron-rich calcium isotopes studied by the shell model with realistic effective interactions

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Chinese Physics C 2019年第12期43卷 107-114页

作者： xiao-bao wang Yu-Hang Meng YaTu Guo-Xiang Dong School of Science Huzhou UniversityHuzhou 313000China School of Physics Science and Technology Shenyang Normal UniversityShenyang 110034China

We study the structure of neutron-rich calcium isotopes in the shell model with realistic *** CD-Bonn and Kuo-Brown(KB)interactions are *** these interactions do not include the three-body force,their direct use leads to poor *** tested whether the adjustment of the single particle energies(SPEs)would be sufficient to include the three-body correlations *** turns out that the CD-Bonn interaction,after the adjustment of SPEs,gives good agreement with the experimental data for the energies and *** the KB interaction,both the SPEs and monopole terms require ***,the monopole problem is less serious for mod?ern realistic interactions which include perturbations up to the third *** also tested the effect of the non-central force on the shell *** is found that the effect of the tensor force in the CD-Bonn interaction is weaker than in the KB interaction.

关键词： shell model effective interactions tensor force three-body force

Many-body correlations in shell model effective interactions derived by ab initio methods and the V_(low-k) approach

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Chinese Physics C 2018年第11期42卷 78-84页

作者： xiao-bao wang Guo-Xiang Dong Hua-Lei wang Cen-Xi Yuan Yong-Jing Chen Ya Tu School of Science Huzhou UniversityHuzhou 313000China School of Physics and Engineering Zhengzhou UniversityZhengzhou 450001China Sino-Prench Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Key Laboratory of Science and Technology on Nuclear Data China Institute of Atomic EnergyBeijing 102413China School of Physics Science and Technology Shenyang Normal UniversityShenyang 110034China

We investigate many-body correlations caused by two- and three-body （2-, 3bd） forces. Shell-model effective interactions derived from ab initio methods （coupled-cluster method, no-core shell model） are adopted. Vlow-k potentials, based on many-body perturbation theory, are also tested, especially for their cut-off dependence. We compare the central, tensor and spin-orbit interactions from microscopic theory to the fitted interactions. After the inclusion of the three-body force, the matrix elements become fairly close to those fitted directly to experimental data. Calculations of neutron-rich oxygen isotopes are performed, to clarify the effects of 3bd forces, tensor, and spin-orbit interactions on the nuclear binding and excitation energies. We find that the 3bd force can influence the binding energies greatly, which also determines the drip line position, while its effect on excitation energies is not very pronounced. The spin-orbit force, which is part of the 2bd force, can affect the shell structure explicitly, at least for neutron-rich systems.

关键词： shell model effective interactions tensor force three-body force

Prognostic role of the ABO blood types in Chinese patients with curatively resected non-small cell lung cancer:a retrospective analysis of 1601 cases at a single cancer center

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Chinese Journal of Cancer 2015年第10期34卷 475-482页

作者： Ning Li Miao Xu Chao-Feng Li Wei Ou bao-xiao wang Song-Liang Zhang Peng-Fei Xu Cheng Yuan Qun-Ai Huang Si-Yu wang Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer Medicine Department of Thoracic Surgery Sun Yat-sen University Cancer Center Department of Experimental Research Sun Yat-sen University Cancer Center Department of Information Technology Sun Yat-sen University Cancer Center Breast Tumor Center Sun Yat-sen Memorial Hospital Department of Thyroid and Breast Surgery The Third Affiliated Hospital of Sun Yat-sen University

Background:A positive association between the ABO blood types and survival has been suggested in several *** aim of this study was to assess the role of the ABO blood types in predicting the prognosis of Chinese patients with curatively resected non-small cell lung cancer(NSCLC).Methods:We retrospectively analyzed 1601 consecutive Chinese patients who underwent curative surgery for NSCLC between January 1,2005 and December 31,*** relationship between the ABO blood types and survival was *** addition,univariate and multivariate analyses were ***:Group 1(patients with the blood type O or B) had significantly prolonged overall survival(OS) compared with group 2(patients with the blood type A or AB),with a median OS of 74.9 months versus 61.5 months[hazard ratio(HR) 0.83;95%confidence interval(CI) 0.72-0.96;P = 0.015].Additionally,group 1 had significantly longer disease-free survival(DFS;HR 0.86;95%CI 0.76-0.98;P = 0.022) and locoregional relapse-free survival(LRFS;HR 0.79;95%CI 0.64-0.98;P = 0.024) than group *** association was not significantly modified by other risk factors for NSCLC,including smoking status,pathologic tumor-node-metastasis stage,pT category,pN category,and ***:There is an association between the ABO blood types and the survival of Chinese patients with resected *** with the blood type O or B had significantly prolonged OS,DFS,and LRFS compared with those with the blood type A or AB.

关键词： The ABO blood types, Lung cancer, Prognosis, Survival

Extracting exact answers from large-scale corpus based on hybrid strategy

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通讯和计算机（中英文版） 2007年第8期4卷 44-52页

作者： LI Peng wang xiao-long wang bao-xun School of Computer Science and Technology Harbin Institute of Technology Harbin 150001 China