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大庆长垣萨尔图-葡萄花-高台子油层组倾斜油水界面形成机理与增储潜力

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石油学报 2021年第11期42卷 1477-1485页

作者：李文龙丛琳东北石油大学地球科学学院黑龙江大庆163318 大庆油田有限责任公司第三采油厂黑龙江大庆163113

大庆长垣萨尔图-葡萄花-高台子油层组(萨葡高油层组)发育倾斜油水界面,前人研究成果无法解释长垣北翼油水界面加深和长垣东、西两翼油水界面海拔差异等现象,制约了油藏增储挖潜。油水界面受油水密度差、界面张力、毛细管半径和遮挡条件... 详细信息

大庆长垣萨尔图-葡萄花-高台子油层组(萨葡高油层组)发育倾斜油水界面,前人研究成果无法解释长垣北翼油水界面加深和长垣东、西两翼油水界面海拔差异等现象,制约了油藏增储挖潜。油水界面受油水密度差、界面张力、毛细管半径和遮挡条件、水动力条件等因素控制。以界定油底、水顶为目标,通过系统分析萨葡高含油组合的油气成藏过程,明确了水动力作用、后期构造变动和储层物性变化等因素导致大庆长垣东北部油水界面降低,局部发育的断层及隔层对油水界面也具一定影响。以叠前地震资料为基础,提出油水界面地质统计学反演技术,通过分析油水密度差来确定油水界面,该方法深化了油藏边部倾斜油水界面储层认识,适用于油藏边部、井资料缺失地区的地质研究。以倾斜油水界面认识和油水界面地质统计学反演技术为指导,优选萨尔图北部构造东北侧和长垣北部过渡带三、四条带葡萄花一油层为有利挖潜区,提高了大庆长垣萨葡高油层组的增储潜力。

关键词：大庆长垣成藏过程倾斜油水界面油水过渡带增储潜力

Berberine treats atherosclerosis via a vitamine-like effect downregulating Choline-TMA-TMAO production pathway in gut microbiota

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Signal Transduction and Targeted Therapy 2022年第8期7卷 3008-3020页

作者： Shu-Rong Ma Qian Tong Yuan lin Li-Bin Pan Jie Fu Ran Peng Xian-Feng Zhang Zhen-Xiong Zhao Yang Li Jin-Bo Yu lin cong Pei Han Zheng-Wei Zhang Hang Yu Yan Wang Jian-Dong Jiang State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences/Peking Union Medical CollegeBeijingChina The First Hospital of Jilin University ChangchunChina

Trimethylamine-N-oxide(TMAO)derived from the gut microbiota is an atherogenic *** study investigates whether or not berberine(BBR)could reduce TMAO production in the gut microbiota and treat *** of BBR on TMAO production in the gut microbiota,as well as on plaque development in atherosclerosis were investigated in the culture of animal intestinal bacterial,HFD-fed animals and atherosclerotic patients,*** found that oral BBR in animals lowers TMAO biosynthesis in intestine through interacting with the enzyme/co-enzyme of choline-trimethylamine lyase(CutC)and flavincontaining monooxygenase(FMO)in the gut *** action was performed by BBR’s metabolite dihydroberberine(a reductive BBR by nitroreductase in the gut microbiota),via a vitamine-like effect down-regulating Choline-TMA-TMAO production *** BBR decreased TMAO production in animal intestine,lowered blood TMAO and interrupted plaque formation in blood vessels in the HFD-fed ***,21 patients with atherosclerosis exhibited the average decrease of plaque score by 3.2%after oral BBR(0.5 g,bid)for 4 months(^(*)P<0.05,n=21);whereas the plaque score in patients treated with rosuvastatin plus aspirin,or clopidogrel sulfate or ticagrelor(4 months,n=12)increased by 1.9%.TMA and TMAO in patients decreased by 38 and 29%in faeces(^(*)P<0.05;^(*)P<0.05),and 37 and 35%in plasma(^(***)P<0.001;^(*)P<0.05),after 4 months on *** might treat atherosclerotic plaque at least partially through decreasing TMAO in a mode of action similar to that of vitamins.

关键词： vitamin intestine TMAO

Preparation and performance of 3D-Pb anodes for nonferrous metals electrowinning in H2SO4 aqueous solution

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Transactions of Nonferrous Metals Society of China 2020年第2期30卷 535-547页

作者： Xiao-cong ZHONG Bin ZHANG Zhen-cong lin Jia-ming LIU Yong-min XIE Zhi-feng XU School of Metallurgical Engineering Jiangxi University of Science and TechnologyGanzhou 341000China Guangdong Institute of Rare Metals Guangzhou 510650China State Key Laboratory of Rare Metals Separation and Comprehensive Utilization Guangzhou 510650China

The effects of Pb^2+concentration,current density,deposition time and temperature on Pb deposit structure were *** lower Pb^2+concentration(~0.15 mol/L),carambola-like 3D-Pb structure was constructed,while in higher Pb2+concentration(≥0.30 mol/L),Pb deposits exhibited pyramid-like ***,the oxide layer and anodic potential of carambola-shaped 3D-Pb(Cara-Pb)and pyramid-shaped 3D-Pb(Pyra-Pb)anodes were investigated and compared with those of fresh Pb *** 72 h galvanostatic electrolysis(50 mA/cm2)in 160 g/L H2SO4 solution,the oxide layer on Pyra-Pb was much thicker than that on Cara-Pb and Pb anodes,which remarkably relieved intercrystalline corrosion of the metallic ***,the oxide layer on Pyra-Pb anode presented a larger surface area and higher PbO2 ***,Pyra-Pb anode showed a 40 m V lower anodic potential compared to Cara-Pb and Pb *** sum,Pyra-Pb anode had a potential to decrease energy consumption and prolong the life span of traditional Pb anode.

关键词： electrochemical deposition 3D-Pb structure growth mechanism oxide layer anodic potential

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基于内模控制的内部热耦合精馏策略

化工学报 2010年第8期61卷 2067-2071页

作者：丛琳刘兴高浙江大学控制系工业控制技术国家重点实验室浙江杭州310027

精馏过程约占工业总能耗的1/3,其节能控制潜力很大。内部热耦合精馏(ITCDIC)是迄今为止所提出的节能效果最好(比常规精馏节能40%以上)却没有商业化的节能技术。主要原因在于该过程具有较强的非线性、复杂的动态特性以及耦合性,给控制方... 详细信息

精馏过程约占工业总能耗的1/3,其节能控制潜力很大。内部热耦合精馏(ITCDIC)是迄今为止所提出的节能效果最好(比常规精馏节能40%以上)却没有商业化的节能技术。主要原因在于该过程具有较强的非线性、复杂的动态特性以及耦合性,给控制方案的设计带来了极大的困难。通过建立更为精确的二阶内部模型,提出了一种有效的ITCDIC内模控制方案。实例研究结果表明,与传统控制方案PID相比,控制品质更加稳定可靠;同时,与目前国际上公开报道的最好结果相比,该控制方案有更广泛的操作域,鲁棒性更强。

关键词：内部热耦合精馏塔内模控制反向响应

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金融租赁的风险控制体系研究

金融论坛 2015年第12期20卷 12-17页

作者：丛林工银金融租赁有限公司

金融租赁企业的全面风险管理体系应以资产价值管理为核心,以租赁物、承租人和交易结构三个维度为基础。金融租赁公司要利用"三个维度"相互制衡、相互抵补的性质,通过组合搭配缓释各类风险因素,从而实现价值管理的核心目标;要逐步构建并... 详细信息

金融租赁企业的全面风险管理体系应以资产价值管理为核心,以租赁物、承租人和交易结构三个维度为基础。金融租赁公司要利用"三个维度"相互制衡、相互抵补的性质,通过组合搭配缓释各类风险因素,从而实现价值管理的核心目标;要逐步构建并不断完善自身的全面风险管理体系,包括风险控制的组织架构设计、客户评级与授信、资产投向政策、审查审议机制、险预警管理、不良资产处置和内部控制等。

关键词：金融租赁风险控制价值管理全面风险管理

思想政治教育中价值倾向性的正当性论析——一个比较的视角

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理论与改革 2018年第2期 181-188页

作者：林聪香港大学教育学院

作为对现存事物或活动的追根溯源的正名,提供思想政治教育价值倾向性的正当性说明是其在新时代面临价值中立冲击的必要回应。现有回应多从纵向的历史角度做出,略显不足,横向的比较维度作为补充不失为一种新角度。西方一度盛行的事实与... 详细信息

作为对现存事物或活动的追根溯源的正名,提供思想政治教育价值倾向性的正当性说明是其在新时代面临价值中立冲击的必要回应。现有回应多从纵向的历史角度做出,略显不足,横向的比较维度作为补充不失为一种新角度。西方一度盛行的事实与价值二分并不适用于思想政治教育,思想政治教育需探索基于现实主义与理想主义的理解价值倾向新进路。从个人、社会和国际维度建构思想政治教育的价值倾向性作为一种新尝试,希冀更好地平衡私人价值和公共价值的关系问题,提升思想政治教育的有效性和精准性。

关键词：思想政治教育价值倾向正当性比较价值中立

Observer Design for A Class of Nonlinear Systems with Incremental Quadratic Constraints

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Observer Design for A Class of Nonlinear Systems with Increm...

Simultaneous Stabilization for A Set of Multi-Input Nonlinear Systems with Time-Delay

第40届中国控制会议

作者： Yujie Zhao cong lin linxin Meng Xiushan Cai College of Physics and Electronic Information Engineering Zhejiang Normal University

This paper considers functional observer design for a class of nonlinear systems with incremental quadratic constraints. We construct a functional observer by injecting both the linear and nonlinear output error terms into the observer systems. Sufficient conditions ensuring exponential convergence of the observer error are established by a rank condition and solving a linear matrix inequality. The design approach for gain matrices of the proposed observer is obtained. Finally, the effectiveness of the proposed design approach is illustrated by an example.

关键词： functional observer nonlinear systems incremental quadratic constraints(δQC) linear matrix inequalities

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Simultaneous Stabilization for A Set of Multi-Input Nonlinea...

Sodium-rich NASICON-structured cathodes for boosting the energy density and lifespan of sodium-free-anode sodium metal batteries

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作者： Dingchao Wang linxin Meng cong lin Xiushan Cai College of Mathematics Physics and Information EngineeringZhejiang Normal University Xingzhi College Zhejiang Normal University

Simultaneous stabilization for a collection of multi-input nonlinear time-delay systems with uncertain parameters is dealt with in this paper. A systematic method to simultaneous stabilization this kind of systems is presented.A continuous state feedback control independently uncertain parameters is acquired. It can simultaneously stabilize this kind of systems. Finally, the effectiveness of the proposed scheme is illustrated by a simulation example.

关键词： nonlinear systems simultaneous stabilization control Lyapunov-Krasovskii functionals state feedback

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InfoMat 2022年第4期4卷 138-150页

作者： Junxiong Wu cong lin Qinghua Liang Guodong Zhou Jiapeng Liu Gemeng Liang Man Wang Baohua Li Liang Hu Francesco Ciucci Qiang Liu Guohua Chen Xiaoliang Yu Department of Mechanical Engineering Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHong KongChina College of Environmental Science and Engineering Fujian Normal UniversityFuzhouFujianChina Department of Chemical Engineering The University of MelbourneParkvilleVictoriaAustralia Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyHong KongChina Institute for Superconducting&Electronic Materials University of WollongongWollongongNew South WalesAustralia Shenzhen Key Laboratory on Power Battery Safety and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate School(SIGS)ShenzhenChina

Rechargeable sodium metal batteries(SMBs)have emerged as promising alternatives to commercial Li-ion batteries because of the natural abundance and low cost of sodium ***,the overuse of metallic sodium in conventional SMBs limits their energy densities and leads to severe safety ***,we propose a sodium-free-anode SMB(SFA-SMB)configuration consisting of a sodium-rich Na superionic conductor-structured cathode and a bare Al/C current collector to address the above *** Na_(3)V_(2)(PO_(4))_(3)in the form of Na_(5)V_(2)(PO_(4))_(3)was investigated as a cathode to provide a stable and controllable sodium source in the *** provides not only remarkable Coulombic efficiencies of Na plating/stripping cycles but also a highly reversible three-electron redox reaction within 1.0–3.8 V versus Na/Na+confirmed by structural/electrochemical ***,an ultrahigh energy density of 400 Wh kg^(-1)was achieved for the SFA-SMB with fast Na storage kinetics and impressive capacity retention of 93%after 130 cycles.A narrowed voltage window(3.0–3.8 V ***/Na+)further increased the lifespan to over 300 cycles with a high retained specific energy of 320 Wh kg^(-1).Therefore,the proposed SFA-SMB configuration opens a new avenue for fabricating next-generation batteries with high energy densities and long lifetimes.

关键词： high energy density long lifespan presodiation sodium-free-anode sodium metal batteries