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Pore throat characteristics of tight sandstone of Yanchang Formation in eastern Gansu,Ordos Basin

Petroleum Research 2018年第1期3卷 33-43页

作者： hao Wu Chunlin zhang Youliang Ji Rui'e Liu Shang Cao Sheng Chen Yunzhao zhang Ye Wang Wei Du Gang Liu College of Geosciences China University of PetroleumBeijing 102249China State Key Laboratory of Petroleum Resources and Prospecting Beijing 102249China Natural Gas Geological Department PetroChina Research Institute of Petroleum Exploration and DevelopmentHebei 065007China Research Institute of Shaanxi Yanchang Petroleum(Group)Co.Ltd. Shaanxi 710075China Institute of Marine Geology and Resource Ocean CollegeZhejiang UniversityZhejiang 310058China

An important factor to evaluate reservoir quality is the pore-throat ***,the strong heterogeneity makes it difficult to characterize the pore-throat distribution in tight *** field emission scanning electron microscope(FESEM),high pressure mercury injection and rate-controlled mercury injection are used to investigate the pore-throat size distribution in tight sandstone reservoirs of Member 7 of the Yanchang Formation in eastern Gansu,Ordos Basin,and studies of the pore throat size controlling on physical property of the tight sandstone reservoirs are also carried *** result shows that the pore type is mainly dominated by the residual intergranular pore,dissolution pore,micropore and a few micro-fractures;the high-pressure mercury injection experiment indicates that the pore-throat size ranges from 0.0148 μm to 40mm,the pore throat more than 1 mm is less;the ratecontrolled mercury injection experiment reveals that for samples with different physical properties,the pore radius mainly varies from 80 μm to 350 μm;the throat radius exhibits the strong heterogeneity,and is from 0.12 μm to 30μm;the pore-throat size can be effectively characterized by combination of high-pressure and rate-controlled mercury injections,and it varies from 0.0148 μm to 350 μ*** permeability is mainly controlled by the large pore throat(>R_(50))which accounts for a small proportion;in the tight sandstone with the permeability greater than 0.1 md,the permeability is mainly controlled by the micropore and mesopore;in the tight sandstone with the permeability smaller than 0.1 md,the permeability is mainly controlled by the nanopore and micropore;the proportion of small pore throat increases with reduction of permeability,it is important that the small pore throat influences the reservoir storage property though its effect on permeability are small.

关键词： Pore-throat size High-pressure and rate-controlled mercury injections Reservoir physical property Tight sandstone Member 7 of the Yanchang Formation Eastern Gansu

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Efficacy of integrated Traditional Chinese Medicine and anti-retroviral therapy on immunological nonresponse in patients with human immunodeficiency virus/acquired immunodeficiency syndrome: a Meta-analysis of randomized controlled trials

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Journal of Traditional Chinese Medicine 2021年第5期41卷 669-676页

作者： TAO Zhuang HUANG Xiaojie LIU Ying WANG Ru DONG Jipeng LIANG Biyan ZOU Wen GAO Guojian WANG Zhuo zhang Ke WU hao zhang Tong WANG Jian Institute of Basic Theory for Chinese Medicine China Academy of Chinese Medical SciencesBeijing 100700China Center for Infectious Diseases Beijing Youan HospitalCapital Medical UniversityBeijing 100069China Research Center of AIDS Treatment with Traditional Chinese Medicine China Academy of Chinese Medical SciencesBeijing 100700China Center of Cardiovascular Diseases Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijing 100091China Dermatology Department of Qingdao University Hospital Qingdao 266000China

OBJECTIVE:To explore the efficacy of integrating Traditional Chinese Medicine(TCM)and anti-retroviral therapy(ART),a customized combination of different classes of medications which was also called cock-tail treatment,on the immunological nonresponse(INR)in people living with human immunodeficiency virus(HIV)(PLWH).METHODS:Relevant literature in databases such as China National Knowledge Infrastructure Database(CNKI),Wanfang Digital Journal,Chinese Medical Journal Database(CMJD),Chinese Biomedical Literature Database(CBM),Pub Med,Cochrane,and Embase was reviewed by two independent *** were extracted from the studies according to the eligible criteria and analyzed using Review Manager ***:Nine randomized controlled trials(RCTs)with 1078 patients were *** analyses showed that CD4 T cell counts in the treatment group improved compared with that in the control group[mean difference(md)=13.51,95%confidence interval(CI):7.42-19.60,Pmd=25.31,95%CI:-2.78 to 53.41,P=0.08).However,after 6 and 12 months,the response of the treatment group was superior to the control group(md=27.45,95%CI:7.09-47.81,P=0.008 and md=27.34,95%CI:6.31–48.37,P=0.01,respectively).The clinical efficacy of the treatment group was also higher than that of the control group(RR=1.75,95%CI:1.16-2.65,P=0.007).However,CD45 RO and CD45 RA T cell counts did not differ significantly between the two groups(md=12.37,95%CI:-6.71 to 31.45,P=0.20 and md=5.67,95%CI:-3.00 to14.35,P=0.20,respectively).CONCLUSION:The combined treatment strategy of integrated TCM and Western Medicine promotes long-term reconstitution of the immune system and thus,is beneficial and has potential use for improving INR in ***,large-scale RCTs are required to provide evidence for optimal intervention strategies.

关键词： Medicine,Chinese Traditional HIV acquired immunodeficiency syndrome immunological nonresponse anti-retroviral agents Metaanalysis

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Identification of close relationship between atmospheric oxidation and ozone formation regimes in a photochemically active region

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Journal of Environmental Sciences 2021年第4期33卷 373-383页

作者： Kaihui Zhao Huihong Luo Zibing Yuan Danni Xu Yi Du Shu zhang Yuqi hao Yonghua Wu Jianping Huang Ying Wang Rongsheng Jiang School of Environment and Energy South China University of TechnologyGuangzhou 510006China The City College of New York(CCNY) New YorkNY 10031USA NOAA–Cooperative Science Center for Earth System Sciences and Remote Sensing Technologies New YorkNY 10031USA NOAA-NCEP Environmental Modeling Center and IM System Group Inc. College ParkMD 720740USA Yale-NUIST Center on Atmospheric Environment Nanjing University of Information Science&TechnologyNanjing 210044China Xianyang Meteorological Bureau Xianyang 712000China Climate Environment and Sustainability CenterNanjing University of Information Science and TechnologyNanjing 210044China

Understanding ozone(O_(3))formation regime is a prerequisite in formulating an effective O_(3)pollution control *** indicator is a simple and direct method in identifying O_(3)formation *** used indicators are derived from observations,whereas the role of atmospheric oxidation is not in consideration,which is the core driver of O_(3)***,it may impact accuracy in signaling O_(3)formation *** this study,an advanced three-dimensional numerical modeling system was used to investigate the relationship between atmospheric oxidation and O_(3)formation regimes during a long-lasting O_(3)exceedance event in September 2017 over the Pearl River Delta(PRD)of *** discovered a clear relationship between atmospheric oxidative capacity and O_(3)formation *** eastern PRD,O_(3)formation was mainly in a NO x-limited regime when HO_(2)/OH ratio was higher than 11,while in a VOC-limited regime when the ratio was lower than *** central and western PRD,an HO_(2)/OH ratio higher than 5 and lower than 2 was indicative of NO x-limited and VOC-limited regime,*** contribution,including horizontal transport and vertical transport,may pose uncertainties on the indication of O_(3)formation regime by HO_(2)/OH *** comparison with other commonly used photochemical indicators,HO_(2)/OH ratio had the best performance in differentiating O_(3)formation *** study highlighted the necessities in using an atmospheric oxidative capacity-based indicator to infer O_(3)formation regime,and underscored the importance of characterizing behaviors of radicals to gain insight in atmospheric processes leading to O_(3)pollution over a photochemically active region.

关键词： Atmospheric oxidation O_(3)formation regimes WRF-CMAQ Photochemically active region

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Self-assembling anchored film basing on two tetrazole derivatives for application to protect copper in sulfuric acid environment

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Journal of Materials Science & Technology 2020年第17期52卷 63-71页

作者： Yujie Qiang hao Li Xijian Lan Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China

Two tetrazole compounds(BTA,BTTA)self-assembled on copper substrate and their inhibition effect toward copper corrosion in 0.5 M H2SO4 was evaluated through atomic force microscopy(AFM),scanning electron microscopy(SEM),weight loss measurement along with electrochemical techniques including electrochemical impedance spectroscopy(EIS)and potentiodynamic *** indicate that BTTA can provide superior inhibition performance to BTA,and the highest inhibition efficiency values of 96.3%(BTA)and 99.8%(BTTA)were achieved respectively at 2 *** tetrazole inhibitor films follow Langmuir model concerning both physical and chemical adsorption,which can be verified by Xray photoelectronic spectroscopy(XPS)***,the negative value of adsorption free energy infers a spontaneous adsorption process of these tetrazole compounds on Cu *** dynamics(md)simulation reveals stronger multiple anchor adsorption of BTTA molecules than BTA because of the existence of S atom.

关键词： Copper Corrosion inhibitor Adsorption Anticorrosion md simulation

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基于Web of Science对土壤胶体影响重金属行为研究的计量分析

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土壤学报 2024年第2期61卷 445-455页

作者：胡鹏杰杜彦锫夏冰仇浩吴龙华骆永明中国科学院土壤环境与污染修复重点实验室(中国科学院南京土壤研究所) 南京210008 中国科学院大学北京100049 安徽省生态环境科学研究院合肥230071 上海交通大学环境科学与工程学院上海200240

为全面了解土壤胶体影响重金属行为方向的研究现状和前沿动态,基于Web of Science(WoS)核心合集数据库,利用WoS自带分析工具、HistCite引文图谱分析软件、VOSviewer和Citespace可视化分析软件对1990—2021年间土壤胶体影响重金属行为的... 详细信息

为全面了解土壤胶体影响重金属行为方向的研究现状和前沿动态,基于Web of Science(WoS)核心合集数据库,利用WoS自带分析工具、HistCite引文图谱分析软件、VOSviewer和Citespace可视化分析软件对1990—2021年间土壤胶体影响重金属行为的文献进行了计量分析。结果表明,在世界范围内该方向的发文量逐年稳步增长,我国相关研究起步较晚,但近些年呈现迅猛发展的势头。目前土壤胶体影响重金属行为研究发文量最多的国家和研究机构分别是美国和中国科学院,发文量最高的期刊为Environmental Science&Technology,主要研究学科为环境科学与生态学的交叉学科。关键词聚类分析显示“土壤胶体颗粒粒径分级与重金属的形态分布”、“土壤胶体的释放、沉积及对重金属的吸附作用”和“土壤胶体颗粒的迁移机制与迁移模型研究”为主要的研究主题,人工纳米颗粒在土壤中的行为、迁移转化以及生物有效性是现阶段的研究热点。利用场流分离技术结合单粒子电感耦合等离子体质谱等技术,探讨土壤胶体与人工纳米颗粒之间发生的复杂相互作用及其对人工纳米颗粒迁移归趋与环境命运的影响,是未来的主要研究方向。

关键词：土壤胶体重金属 Web of Science 文献计量分析

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The Roles of Obesity in the Development of Cancer

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Journal of Nutritional Oncology 2021年第1期6卷 1-15页

作者： md Shahjalal Khan Elizabeth Clinger Lei hao Department of Nutritional Sciences Texas Tech UniversityLubbockTX 79409USA Department of Food and Nutrition Indiana University of PennsylvaniaIndianaPA 15701USA

Cancer is one of the leading causes of death in the *** evidence indicates that obesity is strongly associated with the development of *** review aims to understand the underpinning mechanism of how obesity contributes to the development of *** obesity is an exaggeration of normal adiposity associated with extreme chronicity and co-existing conditions,true causality and underlying mechanisms are difficult to ***,the exact causal relationship is yet to be ***,it will be unlikely to outline a"one system fits all"mechanism for this obesity-cancer axis;however,the biological processes linking obesity and cancer need to be better *** this review,we tried to portray the postulated mechanisms considering common pathophysiology associated with obesity,leading to cancer ***-mediated insulin metabolism,sustained low-grade inflammatory signaling,elevated estrogen metabolism,and abnormal microbiome diversity and dysbiosis are among those mechanisms that can lead to tumor and cancer progression.

关键词： Cancer Obesity Cytokine Insulin Inflammation Gut microbiota

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多级孔ZSM-5分子筛中油酸甲酯催化裂解吸附和扩散行为模拟研究

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化工学报 2024年第5期75卷 1870-1881页

作者：秦晗淞李国梁闫昊冯翔刘熠斌陈小博杨朝合中石化石油化工科学研究院有限公司北京100083 中国石油大学(华东)重质油国家重点实验室山东青岛266580

多级孔ZSM-5分子筛具有丰富的孔道结构,其独特的微-介复合孔道结构可显著促进油酸甲酯(OAME)等大分子反应的发生,但其在分子层面上的促进机制及构-效关系仍不明晰。本工作采用Monte Carlo模拟(MC)结合分子动力学(md)方法,研究了OAME催... 详细信息

多级孔ZSM-5分子筛具有丰富的孔道结构,其独特的微-介复合孔道结构可显著促进油酸甲酯(OAME)等大分子反应的发生,但其在分子层面上的促进机制及构-效关系仍不明晰。本工作采用Monte Carlo模拟(MC)结合分子动力学(md)方法,研究了OAME催化裂解反应中反应物和5种产物分子(丙烯、丁烯、苯、甲苯和二甲苯)在多级孔分子筛上的吸附和扩散行为。通过分析吸附等温线、吸附密度图和反应物种的扩散系数,发现升温不利于OAME的吸附,从而抑制了反应的发生,这与实验结果一致。同时,直孔道和多级孔道这两种吸附位点在催化裂解反应中起到的作用截然不同:直孔道提供芳构化反应活性中心,而多级孔道则主要促进BTX主产物分子的传质扩散。这种多孔道的协同催化作用使得多级孔分子筛相较于微孔分子筛展现出优异的催化性能。此外,发现多级孔ZSM-5分子筛能提高芳烃收率的主要原因是其能够加速BTX向介孔的快速扩散。以上模拟结果不仅有助于从微观角度优化脂肪酸酯催化裂解反应的实验条件,同时也丰富了对多级孔分子筛能多产芳烃微观机制的理解。

关键词：多级孔分子筛扩散吸附分子模拟

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md simulations of loading rate dependence of detwinning deformation in nanocrystalline Ni

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Science China(Physics,Mechanics & Astronomy) 2013年第3期Mechanics & Astronomy) .卷 491-497页

作者： SU hao TANG QiHeng State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of Sciences

Molecular dynamics simulations are performed to investigate the deformation behavior of nanocrystalline Ni with pre-twin atom *** simulation sample is composed of four grains with average size 12 *** simulation technique of isobaric-isothermal ensemble(NPT) with high pressure is applied to obtain a sample with two circle *** uniaxial tensile and shear loading,as well as different detwinning deformation behaviors are *** uniaxial tension the detwinning deformation is induced by the event of grain growth,and it is supported by local energy *** the shear loading the detwinning deformation is related to the loading *** results show that there may be a critical shear *** the shear rate is sufficiently high the circle twin is found to be failed;as the shear rate is less than that rate,the size of circle twin become smaller and gradually approach a constant *** simulation results are in good agreement with experiment observation.

关键词： molecular dynamics simulation detwinning loading rate

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Effectiveness and safety of electroacupuncture for the treatment of pain after laparoscopic surgery: a systematic review

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Journal of Traditional Chinese Medicine 2022年第4期42卷 505-512页

作者： HUANG Yusi YANG Jiju LI Xinyi hao Huifeng LI Chong zhang Fan LIN Haiming XIE Xianfei HE Ke TIAN Guihua Beijing Dongzhimen Hospital Beijing University of Chinese MedicineBeijing 100700China Department of Integration of Chinese and Western Medicine Key Laboratory of Carcinogen esis and Translational Research(Ministry of Education/Beijing)Peking University Cancer Hospital&InstituteBeijing 100142China Key Laboratory of Chinese Internal Medicine of MOE Beijing Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100700China Department of Manipulation Pain Beijing Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100700China

OBJECTIVE:To evaluate the clinical effectiveness and safety of electroacupuncture for treating pain after laparoscopic ***:The following databases were searched(since their establishment until November 16,2021)for randomized controlled trials(RCTs)on electroacupuncture for pain after laparoscopic surgery:Pub Med,Embase,the Cochrane Library,Web of Science,China National Knowledge Infrastructure Database,Wanfang Database,China Science and Technology Journal Database,and Chinese Biomedical Literature *** were screened independently and extracted by two *** researchers independently extracted and cross-checked data and applied the modified Jadad scale and the Cochrane-recommended assessment method to evaluate the bias *** Meta-analysis was conducted using Rev Man5.3 ***:Twelve RCTs enrolling 788 patients were included.(a)For postoperative 24 h visual analogue scale,five trials were included on electroacupuncture+routine analgesia therapy vs routine analgesia therapy with significance in electroacupuncture conducted after surgery[mean difference(md)=-0.63,95%confidence interval(CI)(-0.90,-0.37)],as well as in electroacupuncture conducted before and after surgery[md=-1.01,95%CI(-1.62,-0.41)]and in ***,two trials were included in electroacupuncture conducted 24 h before surgery with no significant difference[md=-0.16,95%CI(-0.44,0.12)].(b)The anesthetics intake of electroacupuncture+routine analgesia therapy *** analgesia therapy was significant[md=-121.71,95%CI(-164.92,-78.49)].(c)The adverse effects of electroacupuncture+routine analgesia therapy *** analgesia therapy were significant both in the incidence of postoperative nausea and vomiting[risk rate(RR)=0.49,95%CI(0.39,0.61)]and postoperative dizziness and headache[RR=0.14,95%CI(0.04,0.47)].CONCLUSION:The evidence showed that electroacupuncture combined with routine analgesia therapy effectively treated pain after laparoscopic ***,

关键词： electroacupuncture laparoscopy pain treatment outcome safety systematic review

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3D microstructures of nuclear graphite:IG-110,NBG-18 and NG-CT-10

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Nuclear Science and Techniques 2016年第3期27卷 115-122页

作者： Shi-Pei Jing Can zhang Jie Pu Hong-Yan Jiang Hui-hao Xia Fang Wang Xu Wang Jian-Qiang Wang Chan Jin College of Physics and Electronic Engineering Henan Normal UniversityXinxiangHenan 453007China Shanghai Institute of Applied Physics Chinese Academy of SciencesJiading Campus2019 Jia Luo RoadJiading DistrictShanghai 201800China

Molten salt is used as primary coolant flowing through graphite moderator channel of a molten salt *** at high temperature under radiation environment,the pore network structure of nuclear graphite should be well *** this paper,X-ray tomography is employed to study the 3D pore structure characteristics of nuclear grades graphite of IG-110,NBG-18 and NG-CT-10,and permeability simulation through geometries are *** porosity,number of pores and throats,coordination number and pore surface are ***-10 is of similar microstructure to IG-110,but differs significantly from *** absolute permeabilities of IG-110,NG-CT-10 and NBG-18 are 0.064,0.090 and0.106 md,*** study provides basis for future research on graphite infiltration experiment.

关键词：三维结构核石墨孔隙结构特征绝对渗透率工作温度辐射环境网络结构断层扫描

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