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Development of the fast arcing protection for ECRH system on the HL-2A tokamak

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核聚变与等离子体物理 2007年第1期27卷 44-47页

作者： LI Xiu-juan RAO jun wang Ming-wei wang Xue-yun LI Bo Southwestern Institute of Physics Chengdu 610225

1 Introduction A series of engineering tests and physical experiments,including ECRH[1],was carried out on the HL-2A tokamak in 2005.A fast arcing protection system[2] was developed to ensure operating of ECRH facilit... 详细信息

关键词：弧阈值响应时间托卡马克装置

Electrolytic properties and element migration in Ni-TiB_(2)/Al_(2)O_(3)composite cathode

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Rare Metals 2021年第1期40卷 57-64页

作者： Yu-Dong Liang Li-jun wang Deng-Peng Chai Sheng-Zhong Bao Ting-Ting Niu jun-wei wang Ying Liu Rare Metals and Metallurgy Materials Research Institute General Research Institute for Nonferrous MetalsBeijing 100088China Zhengzhou Nonferrous Metals Research Institute Co. LtdChaleoZhengzhou 450041China

With alumina sol as binder and Ni metal as sintering aids,the Ni-TiB_(2)/Al_(2)O_(3) composite cathode material for aluminum electrolysis was prepared by coldpressed *** mechanical properties of the composite cathode material were *** electrolytic properties were identified by a 20-A electrolysis *** samples before and after electrolysis test were measured by energy-dispersive spectroscopy(EDS).The migration behavior of various elements in the electrolysis process was studied by phase *** result shows that Ni metal can effectively fill the gap between the aggregate during the sintering process,which can improve the sintering density of the composite cathode material *** voltage of the 20-A electrolysis test is *** impurity of aluminum liquid is 0.42%.The aluminum liquid can wet the cathode surface effectively,and the Ni-TiB_(2)/Al_(2)O_(3) composite is an ideal wettable cathode *** the process of electrolysis,the alkali elements in the electrolyte penetrate the electrode,where K goes deeper than *** generated on the cathode surface will also penetrate the cathode through the gap of the composite material,while Ni in the electrode will spread into the aluminum liquid layer.

关键词： Aluminum electrolysis TiB_(2) Alumina sol Cold-pressed sintering Infiltration

An improved method of potential of mean force for protein-protein interactions

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Chinese Science Bulletin 2008年第8期53卷 1145-1151页

作者： SU Yux LI WenFei ZHANG Jian wang jun wang wei National Laboratory of Solid State Microstructure and Department of Physics Nanjing University Nanjing 210093 China

In this work, the traditional method of potential of mean force (PMF) is improved for describing the protein-protein interactions. This method is developed at atomic level and is distance-dependent. Compared with the traditional method, our model can reasonably consider the effects of the environ- mental factors. With this modification, we can obtain more reasonable and accurate pair potentials, which are the pre-requisite for precisely describing the protein-protein interactions and can help us to recognize the interaction rules of residues in protein systems. Our method can also be applied to other fields of protein science, e.g., protein fold recognition, structure prediction and prediction of thermo- stability.

关键词：基础知识 PMF 双蛋白交互作用

Nasobiliary drainage after endoscopic papillary balloon dilatation may prevent postoperative pancreatitis

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World Journal of Gastroenterology 2015年第8期21卷 2443-2449页

作者： Xiao-Dan Xu Jian-jun Dai Jian-Qing Qian wei-jun wang Department of Gastroenterology Changshu Affiliated Hospital of Suzhou University

AIM:To evaluate the necessity of endoscopic nasobiliary drainage(ENBD)catheter placement after clearance of common bile duct(CBD)***:Patients enrolled in this study were randomly divided into two groups,according to whether or not they received ENBD after the removal of CBD *** 1(ENBD group)was then subdividedinto three groups:G1a patients received an endoscopic papillary balloon dilatation(EPBD),G1b patients received an endoscopic sphincterotomy(EST),and G1c patients received *** 2(non-ENBD group)patients were also subdivided into three groups(G2a,G2b,and G2c),similar to Group *** maximum CBD diameter,the time for C-reactive protein(CRP)to normalize,levels of serum amylase,total serum bilirubin(TB)and alanine aminotransferase(ALT),and postoperative hospitalization duration(PHD)were ***:A total of 218 patients(139 males,79females),with an average age of 60.1±10.8 years,were enrolled in this *** hundred and thirteen patients who received ENBD were included in Group 1,and 105patients who did not receive ENBD were included in Group *** baseline clinical characteristics were similar in both *** were no significant differences in post-endoscopic retrograde cholangiopancreatography(ERCP)-related complications when Groups 1 and 2 were ***-seven patients underwent EPBD,and41 received an ENBD tube(G1a)and 36 did not(G2a).Seventy-three patients underwent EST,and 34 patients received an ENBD tube(G1b)and 39 did not(G2b).The remaining 68 patients underwent neither EPBD nor EST;of these patients,38 received an ENBD tube(G1c)and 30 did not(G2c).For each of the three pairs of subgroups(G1a vs G2a,G1b vs G2b,G1c vs G2c),there were no significant differences detected in the PHD or the time to normalization of CRP,TB and *** the EPBD group,the incidence of post-ERCP pancreatitis,hyperamylasemia and overall patient complications was significantly higher for G2a(post-ERCP pancreatitis:6/36vs 0/41,P=0.0217;hyp

关键词： Endoscopic papillary balloon dilatation Endoscopic

Slag/metal Separation Process of Gas-reduced Oolitic High-phosphorus Iron Ore Fines

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Journal of Iron and Steel Research International 2014年第11期21卷 1009-1015页

作者： Hui-qing TANG Long MA jun-wei wang Zhan-cheng GUO State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing

Slag/metal separation process of the highly reduced oolitic high-phosphorus iron ore fines was investigated. Samples were prepared using the reduced ore fines （metallization rate： 88%） and powder additives of CaO and Na2CO3. Slag/metal separation behavior tests were conducted using a quenching method and the obtained metal parts were subjected to direct observation as well as microstructure examination with SEM and EDS; iron recovery and phosphorus distribution tests were conducted using a Si-Mo high temperature furnace and the obtained metal parts were examined by ICP-AES analysis and mass measurement. Thermodynamic calculation using coexistence theory of slag structure was also performed. Results show that temperature for slag/metal separation must be higher than 1823 K and a satisfying slag/metal separation of the highly reduced ore fines needs at least 4 min; phosphorus con- tent of hot metal is mainly determined by thermodynamics; temperature of 1823-1873 K and Na2CO3 mixing ratio of about 3 % are adequate for controlling phosphorus content to be less than 0.3 mass% in hot metal; temperature, time and Na2CO3 mixing ratio do not have significant effect on iron recovery, and iron recovery rate could be higher than 80% as long as a good slag/metal separation result is obtained.

关键词： oolitic high-phosphorus iron ore fine slag/metal separation iron recovery phosphorus partition

The influence of water level changes on sand bodies at river-dominated delta fronts:The Gubei Sag,Bohai Bay Basin

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Petroleum Science 2022年第1期19卷 58-73页

作者： Yang Zhang Zheng Shi Ji Li jun-wei wang Bao-Liang Yang Ji-Guo Jiang Faculty of Petroleum China University of Petroleum(Beijing)Karamay CampusKaramayXinjiang834000China College of Resources and Environmental Engineering Guizhou Institute of TechnologyGuiyangGuizhou550003China Experiment Testing Institute PetroChina Xinjiang Oilfield CompanyKaramayXinjiang834000China Research Institute of Exploration and Development PetroChina Xinjiang Oilfield CompanyKaramayXinjiang834000China School of Geosciences China University of PetroleumQingdaoShandong266580China Zhuangxi Oil Production Plant Sinopec Shengli Oilfield CompanyDongyingShandong257000China

Changes in water level are one of the important factors controlling the constructive characteristics of *** paper studies the influence of water level changes on sand bodies in the third member of the Shahejie Formation(Es3)on the gentle southern slope of the Gubei Sag,Bohai Bay Basin and draw some conclusions that,for complex sand bodies,with the increase in water level the distributary channels bifurcate frequently,from a simple branching shape to a network shape along with the increase in the development of crevasse splays,mouth bars and sheet *** single sand bodies,with an increase in water level in the slope zone of the lake basin close to the source area,the superimposition style transitioned from vertical cutting-stacking and lateral isolation to vertical stitching,isolation and lateral ***,in the central zone of the lake basin far from the source area,the superimposition style transitioned from vertical stitching and lateral stitching to vertical isolation and lateral *** water level stays stable,the greater the distance from the source area the greater the disaggregation ratio of a single sand *** the same distance from the source area,higher water level tends to result in greater disaggregation ratio of a single sand body.

关键词： Water level changes River-dominated delta Delta front sandbodies Paleogene Shahejie Formation Gubei Sag of Bohai Bay Basin

Effect of mutant p27^(kip1) gene on human cholangiocarcinoma cell line, QBC_(939)

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World Journal of Gastroenterology 2008年第34期14卷 5344-5348页

作者： Jian Luo Yong-jun Chen wei-Yu wang Sheng-Quan Zou Department of General Surgery Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 Hubei Province China

AIM：To investigate the effects of exogenously mutated p27^kip1 （p27） on proliferation and apoptosis of human cholangiocarcinoma cell line, QBC939 in ***： Adenviral vectors were used to transfect mutated p27 cDNA into human QBC939 cell line. Expression of p27 was detected by RT-PCR. Western blot. Cell growth, morphological change, cell cycle, apoptosis and cloning formation were determined by MTT assay and flow ***： The expression of p27 protein and mRNA was increased signifi cantly in QBC939 cell line transfected with Ad-p27mt. The transfer of Ad-p27mt could signifi cantly inhibit the growth of QBC939 cells, decrease the cloning formation rate and induce apoptosis. p27 over expression caused cell cycle arrest at G0/G1 phase 72 h after infection with ***： p27 may cause cell cycle arrest at G0/G1 phase and subsequently lead to apoptosis. Recombinant adenovirus expressing mutant p27 may be potentially useful in gene therapy for cholangiocarcinoma.

关键词： Adenovirus Cholangiocarcinoma Gene therapy Cell cycle Apoptosis

New index to predict esophageal variceal bleeding in cirrhotic patients

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World Journal of Gastroenterology 2014年第22期20卷 6989-6994页

作者： Xiao-Dan Xu Jian-jun Dai Jian-Qing Qian Xun Pin wei-jun wang Department of Gastroenterology Changshu Affiliated Hospital of Suzhou University

AIM: To develop a safe, simple, noninvasive and affordable system to predict esophageal variceal bleeding (EVB) in decompensated cirrhosis patients.

关键词： Portal hypertension Ultrasound-Doppler Esophageal variceal bleeding Decompensated cirrhosis Endoscopy

Long noncoding RNAs in gastric cancer: From molecular dissection to clinical application

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World Journal of Gastroenterology 2020年第24期26卷 3401-3412页

作者： Yue Gao jun-wei wang Jia-Yi Ren Mian Guo Cheng-wang Guo Shang-wei Ning Shan Yu College of Bioinformatics Science and Technology Harbin Medical UniversityHarbin 150081Heilongjiang ProvinceChina Department of Respiratory Medicine The Second Affiliated Hospital of Harbin Medical UniversityHarbin 150081Heilongjiang ProvinceChina Department of Neurosurgery the Second Affiliated Hospital of Harbin Medical UniversityHarbin 150081Heilongjiang ProvinceChina Department of Gastroenterology and Gastrosurgery Gansu Wuwei Tumor HospitalWuwei 733000Gansu ProvinceChina Department of Pathology the Second Affiliated Hospital of Harbin Medical UniversityHarbin 150081Heilongjiang ProvinceChina

Long noncoding RNAs(lncRNAs)are important regulators of cell processes that are usually dysregulated in gastric cancer(GC).Based on their high specificity and ease of detection in tissues and body fluids,increasing attention has spurred the study of the roles of lncRNAs in GC ***,it is necessary to elucidate the molecular mechanisms and further explore the clinical applications of lncRNAs in *** this review,we summarize current knowledge to examine dysregulated lncRNAs in GC and their underlying molecular mechanisms and activities in GC,which involve microRNA sponging,mRNA stability,genetic variants,alternative splicing,transcription factor binding,and epigenetic *** significantly,the potential of lncRNAs as prognostic,circulating,and drug-resistant biomarkers for GC is also *** review highlights the method of dissecting molecular mechanisms to explore the clinical application of lncRNAs in ***,this review offers assistance in using lncRNAs as novel candidates for molecular mechanisms and for the identification of revolutionary biomarkers for GC.

关键词： Gastric cancer Long noncoding RNAs Molecular mechanism Biomarkers Therapeutic target Drug resistance