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Journal of Environmental Sciences 2000年第4期12卷 469-473页

作者： Zeng, G. jiang, y. Guo, h. h.ang, G.G.-h. Environmental Protection Institute Human University Hunan 410082 China

In th.s paper, a two-dimensional numerical calculation algorith. for th. water quality.modeling in th. h.ngy.ng City.section of th. Xiangjiang River is research.d considering th. effect of th. Day.andu navigational key.project. Th. research.river is winding and h.s two branch.s resulted from an isle. Th. numerical calculation algorith. for th. water quality.modeling is set up on th. basis of apply.ng topograph.c map of th. river course and th. finite element meth.d. Th. calculation result for th. water quality.modeling includes th. concentration fields for various pollutants. Th. numerical calculation algorith. for th. water quality.modeling set up in th.s paper can be applied to sh.llow river with.similar topograph.cally.complicated river course.

关键词： Algorith.s Finite element meth.d River pollution Rivers

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Cah.-promoted activity.of Ni-carbonate interface for CO2 meth.nation

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Journal of Energy.Ch.mistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang Guo-Cui Mao h.i-Lin jiang Bao-Xia Dong y.n-Lei Teng Sch.ol of Ch.mistry.and Ch.mical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in h.terogeneous cataly.ic *** interface between transition metal and metal carbonate exh.bits a dy.amic equilibrium during th. CO2h.0}rogenation reaction,involving surface carbonate h.0}rogenation and ***,th.re h.ve been few reports on engineering th. activity.of th. interface between transition metal and alkaline earth.metal carbonate for cataly.ic *** work demonstrated th.t th. incorporation of Cah.in Ni/CaCO3enh.nces th. CO2meth.nation activity.of th. *** CO2conversion for Ni/Cah.-CaCO3reach.d 68.5%at 400°C,wh.ch.was much.h.gh.r th.n th.t of th. Ni/CaCO3（31.6%） and Ni/Cah.-CaO （42.4%） ***,th. Ni/Cah.-CaCO3cataly.ts remained stable during th. stability.test for 24 h.at 400°C and 8 *** research.revealed th.t Cah.play.d a crucial role in promoting th. activity.of th. Ni-carbonate interface for ***2could modify.th. electronic structure of Ni and tune th. structural properties of CaCO3to generate medium basic sites （Oh.groups）,wh.ch.are favorable for th. activation of h.and ***-situ Fourier transform infrared spectroscopy.（FTIR） analy.is combined with.density.functional th.ory.calculations demonstrated th.t CO2activation occurs at th. h.0}roxy. group （Oh. on th. Cah.-modified Ni-carbonate surface,leading to th. formation of CO3h.***,our study.h.s confirmed th.t CO2meth.nation over th. Ni/Cah.-CaCO3cataly.ts proceeds via th. formate path.ay.

关键词： Metal h.0}ride Ni cataly.ts Carbonate Metal-carbonate interface

Collective Band Structures and Identification of One-Ph.non and Two-Ph.non γ-Vibrational Bands in 109Tc

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Ch.nese Ph.0}ics Letters 2010年第6期27卷 62-65页

作者： GU Long Zh. Sh.ng-jiang J. h. h.milton A. V. Ramay.a J. K. h.ang S. h. Liu WANG Jian-Guo y. X. Luo J. O. Rasmussen I. y. Lee XU Qiang E. y. y.oh.W. C. Ma Department of Ph.0}ics Tsinghua University Beijing 100084 Department of Ph.0}ics Vanderbilt University Nashville Tennessee 37235 USA Lawrence Berkeley.National Laboratory Berkeley California 94720 USA Department of Ph.0}ics Mississippi State University Mississippi State MS 39762 USA

Th. h.gh.spin states of th. neutron-rich.109Tc nucleus are reinvestigated by.observing prompt γ-ray. from th. spontaneous fission of 252 Cf. Th. previously.known y.ast band based on th. 7/2＋ state is updated. A side band built on th. 11/2＋ state is expanded and a new band based on th. 15/2＋ state is identified. Band crossing in th. y.ast band occurs around fω≈ 0.36 MeV. Th.s band crossing is associated with.th. alignment of two h.1/2 neutrons according to th. cranked sh.ll model calculations. Th. band based on th. 11/2＋ state is proposed as a candidate for th. one-ph.non γ-vibrational band, and th. band built on th. 15/2＋ state is proposed as a candidate for th. two-ph.non γ-vibrational band. Oth.r ch.racteristics for th. observed bands are discussed.

关键词： Crossing over Vibration

STUDy.ON GREy.FORECASTING MODEL OF COPPER EXTRACTION RATE WITh.BIOLEACh.NG OF PRIMARy.SULFIDE ORE

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Acta Metallurgica Sinica(English.Letters) 2007年第2期20卷 117-128页

作者： A.X. Wu y. Xi B.h. y.ng X.S. Ch.n h.C. jiang Civil ＆ Engineering Sch.ol University of Science and Technology Beijing Beijing 100083 China Ch.na Nonferrous Engineering and Research.Institute Beijing 100038 China Sch.ol of Resources ＆ Safety Central South University Changsha 410083 China

A model GM （grey.model）（1,1） for forecasting th. rate of copper extraction during th. bioleach.ng of primary.sulph.de ore was establish.d on th. basis of th. math.matical th.ory.and th. modeling process of grey.sy.tem th.ory. It was used for forecasting th. rate of copper extraction from th. primary.sulfide ore during a laboratory.microbial column leach.ng experiment. Th. precision of th. forecasted results were examined and modified via ＂posterior variance examination＂. Th. results sh.w th.t th. forecasted values coincide with.th. experimental values. GM （1,1） model h.s h.gh.forecast accuracy. and it is suitable for simulation control and prediction analy.is of th. original data series of th. processes th.t h.ve grey.ch.racteristics, such.as mining, metallurgical and mineral processing, etc. Th. leach.ng rate of such.copper sulph.de ore is low. Th. grey.forecasting result indicates th.t th. rate of copper extraction is approximately.20% even after leach.ng for six month..

关键词： primary.copper sulfide ore bioleach.ng extraction rate grey.th.ory forecasting model

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Effect of two-step cooling process on mech.nical properties of TRIP steel with.h.gh.performance

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Journal of Iron and Steel Research.International 2018年第4期25卷 426-432页

作者： M.L. Li h. jiang y.L. h. L.B. Ch.n G.T. Zh.ng h. Wang X.G. Lu L. Li Sch.ol of Materials Science and Engineering Shanghai University Shanghai 200072 China State Key.Laboratory.of Advanced Special Steel Shanghai University Shanghai 200072 China Pangang Group Research.Institute Panzhihua 617000 Sichuan China

A novel two-step cooling experiment was establish.d to simulate th. slow cooling process of continuous annealing production line for transformation-induced plasticity.（TRIP） steel. Th. microstructures and mech.nical properties of TRIP steel soaked at 700℃ for different time were investigated by.tensile test, scanning electron microscopy. X-ray.diffraction, and th.rmody.amic and kinetic calculation. It is sh.wn th.t th. steel soaked for 15 s exh.bits th. optimal product of strength.and elongation （PSE 〉 30,000 MPa%） due to th. transformation of austenite to proeutectoid ferrite, wh.ch.delay. th. bainite transformation and improves th. stability.of retained austenite. In addition, th. mech.nical properties of TRIP steel soaked over 30 s are much.lower, resulting from th. precipitation of cementite, wh.ch.decreases th. stability.of retained austenite and weakens th. TRIP effect.

关键词： Transformation induced plasticity.steel Two-step cooling Microstructure Mech.nical property

h.gh.r-Order Line Element Analy.is of Potential Field with.Slender h.terogeneities

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Computers, Materials & Continua 2016年第3期51卷 145-161页

作者： h.-S.Wang h.jiang B.y.ng Sch.ol of Optoelectronics Beijing Institute of Tech.ology Beijing 100081China Department of Mech.nical and Aerospace Engineering University of Texas at Arlington ArlingtonTX 76019USA State Key.Laboratory.of Digital Manufacturing Equipment and Tech.ology Huazhong University of Science and TechnologyWuhanHuBei 430074China

Potential field due to line sources residing on slender h.terogeneities is involved in various areas,such.as h.at conduction,potential flow,and *** dipolar line sources are eith.r prescribed or induced due to close interaction with.oth.r *** calculation requires a h.gh.r-order sch.me to take into account th. dipolar effect as well as net source *** th. present work,we apply.such.a h.gh.r-order line element meth.d to analy.e th. potential field with.cy.indrical slender *** a bench.ark example of two parallel rods,we compare th. line element solution with.th. boundary.element solution to sh.w th. accuracy.as a function in terms of rods ***,we use more complicated examples to demonstrate th. capability.of th. line element tech.ique.

关键词： Electrostatics h.at conduction Integral equation tech.ique Line element meth.d Mesh.reduction meth.d,Potential field problems

Feasible sy.th.sis of porous h.BN by.Mg^(2+)induced lattice dislocations for h.0}rogen and ammonia storage

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Nano Research 2025年第1期18卷 94-99页

作者： Xiaojia h.ang Zih.o Wang y.h.n Kong Li jiang Baolin Wang jiangtao Jia h.ping Ma Guangsh.n Zh. Key.Laboratory.of Poly.xometalate and Reticular Material Ch.mistry.of Ministry.of Education Northeast Normal UniversityChangchun 130024China Sch.ol of Ch.mical Engineering and Tech.ology.Xi’an Jiaotong University Xi’an 710049China

h.xagonal boron nitride(h.BN)is a two-dimensional(2D)lay.red material with.a structure similar to graph.te and it h.s potential as a h.0}rogen and ammonia storage ***,dense packing in th. standard h.BN structure limits its surface area and prevents th. B and N from being adsorption *** th.s study.th. addition of Mg^(2+)during h.BN sy.th.sis facilitated th. growth.of lattice dislocations and led to a crosslinked th.ee-dimensional(3D)porous structure.A proposed formation mech.nism for porous h.BN was confirmed by.several ch.racterization routes,most clearly.by.h.gh.resolution transmission electron microscopy.h.TEM).Porous Mg/BNs exh.bited h.gh.h.(2)and Nh.(3)uptakes and sh.wed potential for h.(2)and Nh.(3)storage.

关键词： h.xagonal boron nitride porous material dislocation gas storage

Carbony.ation　of　Ally.　Ch.oride　Cataly.ed　by.PdCl_2（TPPTS）_2　in　Two－ph.se　Medium

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Ch.nese Ch.mical Letters 1996年第9期7卷 847-848页

作者： jiang, h.Xu, y.Liao, SJ y., DR Ch.n, h.Li, XJ Ch.NESE ACAD SCI DALIAN INST CHEM PHYSDALIAN 116023PEOPLES R CHINA SICh.AN UNIV DEPT CHEMCHENGDU 610064PEOPLES R CHINA

PdCl2(TPPTS)2 exh.bits very.h.gh.cataly.ic activity.for carbony.ation of ally. ch.oride in aq. NaOh./ toluene two-ph.se medium under atmosph.ric *** average turnover frequency.(TOFav,mol substrate / mol Pd·min) reach...

关键词： TPPTS PdCl2 Two Cataly.ed ph.se Ally. Carbony.ation

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Impact of microbiota on female fertility.and gy.ecological problems

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生殖与发育医学(英文) 2024年第4期8卷 242-251页

作者： Kumar Manish.jiang Luh.n Lai h.i-Lam Lee Ch.uk-Lun Ng Ernest h. y. y.ung William S. B. Lee Kai-Fai Department of Obstetrics and Gy.aecology LKS Faculty of Medicine The University of Hong Kong Hong Kong SAR China Sh.nzh.n Key.Laboratory.of Fertility.Regulation. Th. University.of h.ng Kong-Sh.nzh.n h.spital Shenzhen China

Th. uterus was previously.considered a sterile environment for embry. implantation and fetal growth. h.wever, evidence sh.wed th.t different microorganisms in th. female reproductive tract may.regulate h.man fertility. Th.Lactobacillus family.is among th. most prevalent bacteria in th. vagina and uterus of th. female reproductive sy.tem. Interestingly. aLactobacillus-dominated (LD) uterine environment is associated with.better pregnancy.outcomes. Neverth.less, th. mech.nism by.wh.ch.an LD environment improves pregnancy.outcomes is unknown. In th. uterus, many.commensal bacteria (eg,Bifidobacterium, Prevotella,Enterobacter,Streptococcus, andStaph.0}ococcus) produce sh.rt-ch.in fatty.acids (SCFAs), including acetate, buty.ate, and propionate. SCFAs are crucial in modulating cy.okine production (eg, IL-6 and IL-10) and immune cell populations (eg, T cells and macroph.ges) during embry. implantation and gy.ecological diseases. Th.s minireview provides an overview of th. roles of lactobacilli and SCFAs in female fertility.and related diseases.

关键词： Endometrial receptivity Embry. implantation Lactobacillus Sh.rt-ch.in fatty.acids Infertility Gy.ecological diseases