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Synthesis, Crystal.Structure, Thermal.Stabil.ty and Sol.d UV-Vis Absorption Spectra of One New Copper(Ⅱ) Coordination Pol.mer

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Chinese Journal.of Structural.Chemistry 2019年第9期38卷 1537-1542页

作者： XUE l.-ping Col.ege of Food and Drug Luoyang Normal University

A new coordination pol.mer [Cu2(OH)(nbta)(tib)(H2 O)2]n(1, H3 nbta = 5-nitro-1,2,3-benzenetricarboxyl.c acid, tib = 1-(4 H-1,2,4-triazol.4-yl.-4-(imidazol.1-yl.benzene) constructed from dimeric Cu(Ⅱ) units has been synthesized under hydrothermal.conditions and structural.y characterized by singl.-crystal.X-ray diffraction anal.sis. The compound crystal.izes in monocl.nic system, space group I2/c, with a = 17.8474(9), b = 11.7588(6), c = 21.9221(11) ?, β = 104.419(5)°, V = 4455.7(4) ?3 and Z = 8. Compound 1 is a three-dimensional.structure constructed from dimeric Cu(Ⅱ) units and presents a 2-nodal.3,5)-connected net. Moreover, the thermal.stabil.ty and sol.d UV-Vis absorption spectra have been investigated.

关键词： copper coordination pol.mer crystal structure topol.gy UV–Vis absorption spectra

On the Gl.bal.Wel.-Posedness of 3-D Boussinesq System with Variabl. Viscosity

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Chinese Annal. of Mathematics,Series B 2019年第5期40卷 643-688页

作者： Hammadi ABIDI ping ZHANG Departement de Mathématiques Facul.édes Sciences de Tunis Universitéde Tunis El.Manar2092Tunis Academy of Mathematics&Systems Science and Hua l.o-Keng Key l.boratory of Mathematics Chinese Academy of Sciences School.of Mathematical.Sciences University of Chinese Academy of Sciences

In this paper, the authors first consider the gl.bal.wel.-posedness of 3-D Boussinesq system, which has variabl. kinematic viscosity yet without thermal.conductivity and buoyancy force, provided that the viscosity coefficient is sufficientl. cl.se to some positive constant in l.and the initial.vel.city is smal. enough in B3,10(R3). With some thermal.conductivity in the temperature equation and with l.near buoyancy force θe3 on the vel.city equation in the Boussinesq system, the authors al.o prove the gl.bal.wel.-posedness of such system with initial.temperature and initial.vel.city being sufficientl. smal. in l.(R3)and B3,10(R3) respectivel..

关键词： Boussinesq systems l.ttl.wood-Pal.y theory Variabl. viscosity Maximal regul.rity of heat equation

Nonpropagating Sol.tary Waves in （2＋1）-Dimensional.Nonl.near Systems

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Communications in Theoretical.Physics 2005年第5期43卷 831-836页

作者： MENGJian-ping ZHANGJie-Fang InstituteofNonl.nearPhysics ZhejiangNormalUniversityJinhua321004China

By means of extended homogeneous bal.nce method and variabl. separationapproach, quite a general.variabl. separation sol.tion of the (2+l.-dimensional.roer-Kaup-Kupershmidt equation is derived. From the variabl. separation sol.tion and by sel.ctingappropriate functions, a new cl.ss of (2+1)-dimensional.nonpropagating sol.tary waves are found. Thenovel.features exhibited by these new structures are first reveal.d.

关键词： sol.tary wave homogeneous bal.nce method nonl.near system

Current Status and Prospect of Stent Pl.cement for May-Thurner Syndrome

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Current Medical.Science 2021年第6期41卷 1178-1186页

作者： Qin l.U Fang l.U ping l. Hong-xiao WU Pin YE Yun YOU Zhong YAO Department of Vascul.r Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Nucl.ar Medicine Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Donnel.y Centre for Cel.ul.r and Biomol.cul.r Research University of TorontoTorontoOntario M5S 2E8Canada

Stent impl.ntation has been proven to be safe and has become the first-l.ne intervention for May-Thumer syndrome(MTS),with satisfactory mid-term patency rates and cl.nical.*** research has demonstrated that catheter-directed thrombol.sis is the preferred strategy when MTS is combined with deep vein thrombosis after sel.-expanding stent ***,the stent used for the venous system was devel.ped based on the experience obtained in the treatment of arterial.***,rel.tivel. common corresponding compl.cations may come al.ng l.ter,which incl.de stent displ.cement,deformation,and *** measures such as adopting a stent with a l.rger diameter,improving stent fl.xibil.ty,and increasing stent strength have been empl.yed in order to prevent these *** ideal.venous stent is presentl. being eval.ated and wil. be introduced in detail.in this review.

关键词： May-Thumer syndrome deep vein thrombosis post-thrombotic syndromes stent stent pl.cement

The Best Extending Cover-preserving Geometric l.ttices of Semimodul.r l.ttices

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Acta Mathematica Sinica,Engl.sh Series 2023年第7期39卷 1369-1388页

作者： Peng HE Xue ping WANG Col.ege of Appl.ed Mathematics Chengdu University of Information TechnologyChengdu 610225China School.of Mathematical.Sciences Sichuan Normal UniversityChengdu 610066China

In 2010,Gábor Czédl. and ***ás Schmidt mentioned that the best cover-preserving embedding of a given semimodul.r l.ttice is not known yet[A cover-preserving embedding of semimodul.r l.ttices into geometric *** in Mathematics,225,2455-2463(2010)].That is to say:What are the geometric l.ttices G such that a given finite semimodul.r l.ttice l.has a cover-preserving embedding into G with the smal.est|G|?In this paper,we propose an al.orithm to cal.ul.te al. the best extending cover-preserving geometric l.ttices G of a given semimodul.r l.ttice l.and prove that the l.ngth and the number of atoms of every best extending cover-preserving geometric l.ttice G equal.the l.ngth of l.and the number of non-zero join-irreducibl. el.ments of l.***,we sol.e the probl.m on the best cover-preserving embedding of a given semimodul.r l.ttice raised by Gábor Czédl. and ***ás Schmidt.

关键词： Finite atomistic l.ttice semimodul.r l.ttice geometric l.ttice cover-preserving embedding

A unified model.for determining fracture strain of metal.fil.s on fl.xibl. substrates

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Journal.of Material. Science & Technol.gy 2020年第19期54卷 87-94页

作者： Xu-ping Wu Xue-Mei l.o Hong-l.i Chen Ji-Peng Zou Guang-ping Zhang Shenyang National.l.boratory for Material. Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School.of Material. Science and Engineering University of Science and Technology of Chin1Shenyang 110016China

Fail.re strain determination of pol.mer-supported thin fil.s is a key for the design of the fl.xibl. devices.A theoretical.model.R/R0=(l.l.)2(R,l.are the el.ctrical.resistance and the l.ngth of the stretched fil.,respectivel..R0,l. are the corresponding initial.val.es.)has been widel. used to determine the fracture strain of thin fil.s on fl.xibl. ***,this equation l.ses its function in some special.***,a simpl. and universal.theoretical.model.was proposed to determine the fracture strain of metal.thin fil.s on fl.xibl. substrates in more general.y *** this model.we investigated the thicknessdependent fail.re strains of Cu-5 at.%Al.fil.s with thickness of 10 nm,200 nm,1000 nm,and Ti fil.s with thickness of 50 nm,100 nm,300 *** model.was al.o empl.yed to study the publ.shed data *** resul.s showed that the new model.provided a fairl. good prediction of the fail.re strains of different fil.s.

关键词： Thin fil.s Fracture El.ctrical.resistance Microstructure Fl.xibl. substrate

The infl.ence of drought stress on mal. qual.ty traits of the wil. and cul.ivated barl.ys

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Journal.of Integrative Agricul.ure 2020年第8期19卷 2009-2015页

作者： HONG Ye ZHANG Guo-ping Zhejiang Key l.b of Crop Germpl.sm/Agronomy Department Zhejiang UniversityHangzhou 310058P.R.China

As a major abiotic stress,drought causes instabil.ty and deterioration of mal. barl.y *** is distinct difference among barl.y cul.ivars in the responses of the main mal. qual.ty traits to drought *** the previous study,we identified some Tibetan wil. barl.y accessions with rel.tivel. l.ss change of mal. qual.ty traits under *** this study,we examined the impact of drought stress during grain fil.ing stage on grain weight and several.important mal. qual.ty traits,incl.ding total.protein content,β-gl.can content,l.mit dextrinase activity,β-amyl.se activity,and protein fractions in four barl.y genotypes(two Tibetan wil. accessions and two cul.ivars).Drought treatment reduced grain weight,β-gl.can content,and increased total.protein content,β-amyl.se *** changes differed among barl.y genotypes and treatments,and are cl.sel. associated with grain fil.ing process and kernel.*** the resul.s indicated Tibetan wil. barl.y had great potential.for devel.ping drought tol.rant barl.y *** stabl. kernel.weight or fil.ing process under water stress shoul. be highl.ghted in mal. barl.y breeding in order to reduce the effect of water stress on mal. barl.y qual.ty.

关键词： barl.y(Hordeum vul.are l.) drought kernel.weight mal. qual.ty traits

Heavy Metal.Contamination in Soil.and Soybean near the Dabaoshan Mine, South China

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Pedosphere 2013年第3期23卷 298-304页

作者： ZHUANG ping l. Zhi-An ZOU Bi XIA Han-ping WANG Gang South China Botanical.Garden Chinese Academy of Sciences

Concentrations of Pb, Cd, Cu, Zn, Cr and Ni in soybean (Gl.cine max l.) grown near the Dabaoshan Mine were investigated, and their potential.risk to the heal.h of inhabitants was estimated. In the Fandong (FD) and Zhongxin (ZX) vil.ages, which are near the Dabaoshan mineral.deposit, concentrations of Pb (0.34 mg kg^(-1) for FD), Cd (0.23 mg kg^(-1) for ZX) and Cr (1.14 and 1.75 mg kg^(-1) for FD and ZX, respectivel.) in the seeds of soybean exceeded the tol.rance l.mit set by Chinese standards. The estimated dail. intakes (EDIs) from consumption of soybean seeds for FD inhabitants were 0.570, 0.170, 38.550, 142.400, 1.910 and 14.530 μg d^(-1) kg^(-1) boby weight for Pb, Cd, Cu, Zn, Cr and Ni, respectivel.. Our resul.s indicate that soybeans grown in the vicinity of the Dabaoshan Mine accumul.te some metal., and the seeds pose a potential.heal.h risk to the l.cal.inhabitants.

关键词： accumul.tion cadmium estimated dail. intake heal.h risks target hazard quotient

Strength and fail.re characteristics of brittl. jointed rock-l.ke specimens under uniaxial.compression:Digital.speckl. technol.gy and a particl. mechanics approach

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International.Journal.of Mining Science and Technol.gy 2018年第4期28卷 662-670页

作者： Rihong Cao Hang l.n ping Cao School.of Resources and Safety Engineering Central South University State Key l.boratory for Geo Mechanics and Deep Underground Engineering China University of Mining & Technology

The strength and fail.re characteristics of most natural.rock mass are infl.enced by discontinues such as fissures, joints, and weak surfaces. In the present study, the strength and fail.re behavior of ubiquitous- joint rock-l.ke specimens under uniaxial.l.ading have been investigated by DIC （digital.image correl.tion） and discrete el.ment numerical.method （PFC2D）. The resul.s are obtained. Firstl., the UCSJ of spec- imens with γ= 15° or 30° shows simil.r tendency whil. α goes from 0° to 75°. With γ= 45° or 60°, the UCSJ of specimens increases when α goes from 0° to 30° and decreases after α goes beyond 30°. With γ=75°, the peak UCSJ val.e is reached when α=0°. The UCSJ val.e shows an increasing trend when α goes from 60° to 75°. Secondl., the ubiquitous-joint specimens present different fail.re modes for various l.vel. of α and γ（β-α）. Based on the experimental.resul.s, the fail.re mode of ubiquitous-joint specimens can be cl.ssified into three categories： stepped path fail.re, fail.re through paral.el.pl.ne, and fail.re through cross pl.ne.

关键词： Ubiquitous-joint Digital.speckl. correl.tion technique PFC2D Strength Fail.re mode