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Exploring the halo phenomena of medium-mass nuclei having approximately Z=40 with point-coupled parameters in complex momentum representations

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Chinese Physics C 2021年第7期45卷 240-246页

作者： yao-Wu chu Tai-Hua Heng School of Physics and Materials Science Anhui UniversityHefei 230601China

To explore the properties of neutron-rich nuclei with approximately 40 protons,the density-dependent point coupling(DD-PC1)effective interaction parameter is adopted in the relativistic mean-field theory with the complex momentum representation(RMF-CMR).The calculated two-neutron separation energy(S_(2n))and root-mean-square(rms)radii support the halo structure that appear in Mo and Ru isotopic ***,the neutron skin structures appear in Kr and Sr *** conclusions drawn are also supported by the single-particle energy levels and their occupancy probability and density ***,the energy levels,which reduce to bound states or are approximately 0 MeV with a small orbital angular momentum,are suggested to provide the primary contribution to increasing the neutron ***,the single-particle energy levels significantly reflect the shell *** addition,the neutron drip line nuclei for Kr,Sr,Mo,and Ru elements are proposed via the changes in S_(2n).

关键词： ground state properties complex momentum representation halo phenomena

LAMOST spectral survey——An overview

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Research in Astronomy and Astrophysics 2012年第7期12卷 723-734页

作者： Gang Zhao Yong-Heng Zhao yao-Quan chu Yi-Peng Jing Li-Cai Deng Key Laboratory for Optical Astronomy National Astronomical Observatories Chinese Academyof Sciences Beijing 100012 Chinat University of Science and Technology of China Hefei 230026 China Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China

LAMOST （Large sky Area Multi-Object fiber Spectroscopic Telescope） is a Chinese national scientific research facility operated by National Astronomical Observatories, Chinese Academy of Sciences （NAOC）. After two years of commis- sioning beginning in 2009, the telescope, instruments, software systems and opera- tions are nearly ready to begin the main science survey. Through a spectral survey of millions of objects in much of the northern sky, LAMOST will enable research in a number of contemporary cutting edge topics in astrophysics, such as discovery of the first generation stars in the Galaxy, pinning down the formation and evolution history of galaxies - especially the Milky Way and its central massive black hole, and look- ing for signatures of the distribution of dark matter and possible sub-structures in the Milky Way halo. To maximize the scientific potential of the facility, wide national par- ticipation and international collaboration have been emphasized. The survey has two major components： the LAMOST ExtraGAlactic Survey （LEGAS） and the LAMOST Experiment for Galactic Understanding and Exploration （LEGUE）. Until LAMOST reaches its full capability, the LEGUE portion of the survey will use the available ob- serving time, starting in 2012. An overview of the LAMOST project and the survey that will be carried out in the next five to six years is presented in this paper. The sci- ence plan for the whole LEGUE survey, instrumental specifications, site conditions, and the descriptions of the current on-going pilot survey, including its footprints and target selection algorithm, will be presented as separate papers in this volume.

关键词： techniques: spectroscopic -- Galaxy: structure -- Galaxy: evolution --Galaxy: disk -- spectroscopy

Highly Durable and Fast Response Fabric Strain Sensor for Movement Monitoring Under Extreme Conditions

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Advanced Fiber Materials 2023年第1期5卷 223-234页

作者： Dongxing Lu Shiqin Liao yao chu Yibing Cai Qufu Wei Kunlin Chen Qingqing Wang Key Laboratory of Eco‑Textiles Ministry of EducationJiangnan UniversityWuxi 214122China Jiangxi Centre for Modern Apparel Engineering and Technology Jiangxi Institute of Fashion TechnologyNanchang 330201China

The exploration of smart electronic textiles is a common goal to improve people’s quality of ***,current smart e-textiles still face challenges such as being prone to failure under humid or cold conditions,lack of washing durability and chemical ***,a multifunctional strain sensor with a negative resistance change was developed based on the excellent elasticity of knitted fabrics.A reduced graphene oxide(rGO)conductive fabric was first obtained by electrostatic self-assembly of chitosan(CS).Then a strain sensor was prepared using a dip-coating process to adsorb nanoscale silica dioxide and poly(dimethylsiloxane)(PDMS).A broad working range of 60%,a fast response time(22 ms)and stable cycling durability over 4000 cycles were simultaneously achieved using the prepared ***,the sensor showed excel-lent superhydrophobicity,photothermal effects and UV protection,as graphene,silica and PDMS acted in *** multifunctional sensor could be mounted on human joints to perform tasks,including activity monitoring,medical rehabili-tation evaluation and gesture recognition,due to its superior electromechanical *** on its multiple superior properties,this sensor could be used as winter sportswear for athletes to track their actions without being impacted by water and as a warmer to ensure the wearer's comfort.

关键词： Multifunctional strain sensor Fabric surface modification Superhydrophobicity Photothermal Human movement detection

Interaction models of CYP1A1, GSTMl polymorphisms and tobacco smoking in intestinal gastric cancer

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World Journal of Gastroenterology 2005年第38期11卷 6056-6060页

作者： Jing Shen Run-Tian Wang yao-chu Xu Li-Wei Wang Xin-Ru Wang Department of Epidemiology and Biostatistics School of Public Health Nanjing Medical University Nanjing 210029 Jiangsu Province China Department of Environmental Health Sciences Mailman School of Public Health Columbia University New York NY 10032USA Department of Epidemiology and Biostatistics School of Public Health Peking University Beijing 100083China Yang Zhong Cancer Research Institute Yang Zhong City Municipal Hospital Yang Zhong 212200 China

AIM： To explore the interaction models of the cytochrome P-450 （CYP） 1A1 Valvariant and glutathione S-transferase （GST） M1 null polymorphisms with tobacco smoking in the occurrence of intestinal gastric cancer. METHODS： A community-based case-control study was conducted in Yangzhong. Subjects included 114 intestinal types of gastric cancer with endoscopic and pathological diagnosis during January 1997 and December 1998, and 693 controls selected from their spouse, siblings or siblingsin-law who had no history of digestive system cancer. Logistic regression was used to estimate the interaction models. RESULTS： The frequency of the CYPIA1 Valvariant allele in cases did not differ from that in controls. The OR of GSTM1 null genotype was 2.0 （95% confidence interval [95%CI]： 1.2-3.1, P〈0.01）. It showed a significant type 2 form of interaction model when both CYPIA1 Valvariant allele and former tobacco smoking existed （i.e., among the multiplicative effects, the disease risk is increased by the tobacco exposure alone but not by the CYPIA1 variant alone）. The interaction index y was 2.8, and OReg （95%CI） was 5.0 （1.9-13.4）. GSTM1 null genctype and former tobacco smoking were significant in a type 4 interaction model （i.e., the disease risk is increased by GSTM1 null genotype or tobacco exposure alone among the multiplicative effects）. The interaction index y and OReg （95%CI） were 3.4 and 8.4 （3.4-20.9）, respectively.CONCLUSION： Different interaction models of CYPIA1 Valvariant allele and GSTM1 null genotype with tobacco smoking will contribute to understanding carcinogenic mechanism, but there is a need to further investigate in larger scale studies.

关键词： Interaction models CYP1A1 GSTM1 Tobacco smoking Intestinal gastric cancer

Human leukocyte antigen class II DQB1*0301, DRB1*1101 alleles and spontaneous clearance of hepatitis C virus infection: A meta-analysis

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World Journal of Gastroenterology 2005年第46期11卷 7302-7307页

作者： Xin Hong Rong-Bin Yu Nan-Xiong Sun Bin Wang yao-chu Xu Guan-Ling Wu Department of Epidemiology and Biostatistics School of Public Health Nanjing Medical University Nanjing 210029 Jiangsu Province China Research Laboraiory for infectious Diseases The First Affiliated Hospital Nanjing Medical University Nanjing 210029 Jiangsu Province China Department of Pharmacology Nanjing Medical University Nanjing 210029 Jiangsu Province China Department of-Microbiology Nanjing Medical University Nanjing 210029 Jiangsu Province China

AIM： To assess the associations of human leukocyte antigen （HI_A） class Ⅱ DQB1＊0301 and/or DRB1＊1101 allele with spontaneous hepatitis C virus （HCV） clearance by meta-analysis of individual dataset from all studies published till date. METHODS： To clarify the impact of HLA class Ⅱ polymorphisms on viral clearance, we performed a metaanalysis of the published data from 11 studies comparing the frequencies of DQB1＊0301 and DRB1＊1101 alleles in individuals with spontaneous resolution to those with persistent infection. As we identified the heterogeneity between studies, summary statistical data were calculated based on a random-effect model. RESULTS： Meta-analyses yielded summary estimatesodds ratio （OR） of 2.36 [95%CI （1.62, 3.43）, P〈0.00001] and 2.02 [95%CI （1.56, 2.62）, P〈0.00001] for the effects of DQB1＊0301 and DRB1＊1101 alleles on spontaneous clearance of HCV, respectively. CONCLUSION： These results support the hypothesis that specific HLA class Ⅱ alleles might influence the susceptibility or resistance to persistent HCV infection. Both DQB1＊0301 and DRB1＊1101 are protective alleles and present HCV epitopes more effectively to CD4^＋T lymphocytes than others, and subjects with these two alleles are at a lower risk of developing chronic HCV infection. Large, multi-ethnic confirmatory and welldesigned studies are needed to determine the host genetic determinants of HCV infection.

关键词： Human leukocyte antigen Genetic polymorphism DQB1*0301 DRB1*1101 Hepatitis C virus Spontaneous clearance Meta-analysis

Role of intrinsic defects on carbon adsorbent for enhanced removal of Hg^(2+)in aqueous solution

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Chinese Journal of Chemical Engineering 2023年第9期61卷 129-139页

作者： Liu He Yiyang Qiu chu yao Guojun Lan Na Li Huacong Zhou Quansheng Liu Xiucheng Sun Zaizhe Cheng Ying Li Institute of Industrial Catalysis Zhejiang University of TechnologyHangzhou 310058China Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources Huhhot 010051China

Carbon is a normally used adsorbent for removal of heavy metal ion in aqueous solutions,but the efficient adsorbent needs intensive modification by heteroatom doped or supported noble metals that cause severe pollution and easy leaching of active components during *** this paper,the role of intrinsic defects on Hg^(2+)adsorption for carbon adsorbent was *** maximum adsorbing capacity of defectrich carbon has been improved up to 433 mg·g^(-1)which is comparable to most of the modified carbon adsorbents via supported metal chloride or noble metal *** basicity is increased with the content of defective sites and the strong chemical bonding can be formed via electron transformation between the defect sites with adsorbed Hg^(2+).The present study gives a direction to explore cheap and easily scale-up high-performance mercury adsorbents by simply tuning the intrinsic defective structure of carbon without the necessity to support metal or other organic compounds.

关键词： Mercury-ion removal Adsorption Carbon adsorbent Defect sites

Effects of tetrandrine on gastric mucosa and liver in portal hypertensive rats

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World Journal of Gastroenterology 1997年第3期3卷 64-66页

作者： MU Yi, SHEN yao Zong and chu Yi Fang

AIM To study the effects of tetrandrine on portal hypertensive gastric mucosal lesions. METHODS Portal hypertensive models were induced in Wistar rats by 60% CCl 4 3ml/kg body weight subcutaneous injection, once every 4 days for 56 days. The animals were randomly divided into portal hypertension, tetrandrine and propranolol groups and subsequently, treated by physiological saline, tetrandrine and propranolol respectively for 15 days. Some healthy rats were used as normal group. Portal venous pressure (PVP), gastric mucosal prostaglandin E 2 (PGE 2) content, gastric mucosal blood flow (GMBF), gastric adherent mucus (GAM), ALT, ALP and serum total bilirubin (STB), were measured and liver tissues were observed histologically. RESULTS In tetrandrine group and propranolol group, PVP was significantly lower (1 43±0 13, 1 45±0 12 vs 1 89±0 18kPa; P 0 05) and STB (11 63±3 01 vs 11 12±2 93μmol/L; P >0 05) in propranolol group were not different from that in portal hypertension controls group, but it showed more marked hepatocellular degeneration and necrosis and elevation of ALP (0 46±0 05 vs 0 31±0 06μmol·s -1 /L; P <0 01). CONCLUSION Tetrandrine can improve the functions of gastric mucosa and li

关键词： liver gastric mucosa hypertension, portal tetrandrine propranolol

Variability of the Kuroshio in the East China Sea in 1995

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Acta Oceanologica Sinica 1999年第4期18卷 459-475页

作者： Liu Yong gang and Yuan yao chu (Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China) Second Institute of Oceanography State Oceanic Administration Hangzhou 310012 China

A modified inverse method is ed to compute the Kuroshio in the East China Sea with the CTD andwind data collected by R/V Chofu Maru during four cruises of 1995. The computed results show that: (1) The volume transport (hereafter VT) of the Kuroshio through fortion PN is 23. 3×106, 34. 1× 106,21. 1× 106 and 26. 7 ×106 m3/s, respectively , during winter, spring, summer and autumn, i. e., its VT is largest in spring but smallest inthe summer of 1995. However, from the statistical average results [e. g., Yuan et al. (1993) ], its VT is largest insummer but smallest in autumn. This means that the year 1995 is an anomalous year, which can also be shown from the T - S distributions. The heat transport (hereafter HT ) through Section PN is 1. 6×1015, 2. 5× 1015, 1. 7 x1015 and 2.1× 1015 W, respectively, during winter, spring, summer and autumn. This shows also that the year 1995is an anomalous year. VT through Section TK (at the Tokara Staik) is the largest in the spring of 1995. (2) Thereare two current cores at Section PN during winter, spring and summer, and three cores in autumn. (3) The Kuroshiovelocities at Section PN are stronger in spring and autumn than those in the winter and summer of 1995. (4) Thereare countercurrents under and east of the Kuroshio at Section PN. (5 ) The average rate of heat transfer in the computed area from the ocean to the atmosphere is 6.28×103, -0.83× 103, -2.09×103 and 2.49×103J/(cm2.d), respectively, during winter, spring, summer and autumn.

关键词： East China Sea Kuroshio seasonal variation

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黄海海域地质构造特征及其油气资源潜力

海洋地质与第四纪地质 2006年第2期26卷 85-93页

作者：姚伯初国土资源部广州海洋地质调查局广州510075

综合前人的研究成果,利用2000年以来在黄海采集的综合地球物理资料,结合我国及邻国在该海域的钻井成果,分析和讨论了黄海地区从古生代至新生代的构造演化历史;对南、北黄海沉积盆地形成的构造背景和盆地的构造类型进行了研究,认为在古... 详细信息

综合前人的研究成果,利用2000年以来在黄海采集的综合地球物理资料,结合我国及邻国在该海域的钻井成果,分析和讨论了黄海地区从古生代至新生代的构造演化历史;对南、北黄海沉积盆地形成的构造背景和盆地的构造类型进行了研究,认为在古生代它们是台地相沉积,中生代和新生代是张裂盆地;通过对我们采集的地震剖面之分析和研究,认为盆地中的中生界和古近系发育了良好的烃源岩,新近系发育了良好的区域盖层,储层在盆地中普遍发育。因此,在南、北黄海沉积盆地中可以找到中、小型油气田。另外,对盆地中的古生界应加强研究,在保存较好并且中新生代沉积较薄的地方做探查工作,应该有一定的油气前景。

关键词：区域构造构造演化史沉积盆地烃源岩黄海