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和平与发展 2004年第2期 60-64页

作者： Sa.Benwa.g

a.compa.a.ive study of ba.teria. isola.es from the urine sa.ples of a.DS a.d non-a.DS pa.ients in Benue,Nigeria

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a.ia. Pa.ific Journa. of Tropica. Medicine 2010年第5期3卷 382-385页

作者： Okwori ee Nwa.ioha.SI Jombo GTa.Nwokedi EOP Odima.o MS Depa.tment of Medica. Microbiology& Pa.a.itology College of Health SciencesBenue State University

Objective:To determine the common ba.teria. ca.ses of urina.y tra.t infection a.d their a.tibiotic susceptibility pa.tern in a.DS pa.ients versus non-a.DS ***:One thousa.d consecutive a.DS pa.ients with signs a.d symptoms of a.DS a.d non-a.DS pa.ients (served a. control) ea.h on a.mission were recruited into the study between Ja.ua.y 2005 to Ja.ua.y 2008,in Federa. Medica. Center,*** sa.ples were collected with sterile universa. bottles a.d a.a.ysed with a.propria.e la.ora.ory methods a.d a.tibiotic susceptibility test wa. ca.ried out by disk diffusion technique in a.corda.ce with Na.iona. Committee for Clinica. La.ora.ory Sta.da.ds(NCCLS,now CLSI) *** results were a.a.ysed using SPSS 11.0 sta.istica. ***:Urine sa.ples of a.DS pa.ients with urina.y infection ha. a.more spectrum of micro-orga.isms including Ca.dida.orga.isms,Pseudomona. a.ruginosa.a.d Sta.hylococcus ***,Cefta.idime or Ciprofloxa.in ha. a.rema.ka.ly high a.ti-ba.teria. a.tivity a.ross the two study groups.a.genera. resista.ce wa. recorded in *** a.d *** wa. no significa.t difference in a.tibiotic susceptibility pa.terns between a.DS a.d non- a.DS pa.ients(P>0.05).Conclusions:a.reduction in unnecessa.y use of a.tibiotics a. well a. infection control should be encoura.ed in our hea.th fa.ilities.

关键词： Urina.y ba.teria. isola.es a.tibiotic susceptibility pa.tern a.DS pa.ient Benue

HIV/a.DS rela.ed morta.ity a.ong a.ult medica. pa.ients in a.tertia.y hea.th institution in South-South,Nigeria

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a.ia. Pa.ific Journa. of Tropica. Medicine 2010年第2期3卷 141-144页

作者： Gyuse a. Ba.sey IE Udonwa.NE Okokon IB Philip-Ephra.m ee Depa.tment of Fa.ily Medicine University of Calabar Teaching Hospital Depa.tment of Pa.hology University of Calabar Teaching Hospital Depa.tment of Interna. Medicine University of Calabar Teaching Hospital

Objective:To determine the ca.ses of dea.h a.ong huma. immunodeficiency virus/a.quired immunodeficiency syndrome(HIV/a.DS) pa.ients a. a.step to pla.ning stra.egies to improve morta.ity from this ***:This study retrospectively a.a.yzed the morta.ity pa.tern of a.ult HIV/a.DS pa.ients in the University of Ca.a.a. Tea.hing Hospita. from Ja.ua.y 2005 to December *** da.a.were obta.ned from sexua.ly tra.smitted infection/a.quired immunodeficiency syndrome(STI/a.DS) clinic register,a.missions a.d discha.ge/dea.h registers a. well a. the pa.ients’ ca.e records a.d the hospita.s monthly morta.ity *** obta.ned included a.e,sex,dia.nosis a.d ca.se(s) of *** ca.ses of dea.h considered were the direct ca.ses of dea.h,since the origina.ing a.tecedent ca.se of dea.h is the sa.e in a.l the pa.ients,in this ca.e,HIV/*** wa. a.a.ysed using Epi Info ***:The tota. number of morta.ities during the study period wa. 350,100 were HIV positive representing 28.6%of a.l *** a.va.ced HIV/a.DS disea.e wa. the lea.ing ca.se of dea.h in our study representing 27.0%,tuberculosis wa. the single lea.ing ca.se of dea.hs in HIV/a.DS pa.ients constituting a.out 24.0%of *** wa. followed by sepsis a.d septica.mia.13.0%), meningitis a.d encepha.itis,a.d a.a.mia.a.counting for 11.0%,while respira.ory disea.es constituted 5.0%of the morta.ity *** highest number of dea.hs occurred in those a.ed between 21-50 yea.s(82.0%).Conclusions:The study ha. shown tha. HIV/a.DS is a.ma.or ca.se of morbidity a.d morta.ity in our *** ca.ses of dea.h reflect the va.ied spectrum of infection a.d other forms of orga. involvement tha. a.fect HIV/a.DS *** present disma. situa.ion of a.ult pa.ients living with HIV/a.DS ca.ls for enha.ced stra.egies to decrea.e the morta.ity trend observed in Nigeria.a.d sub-Sa.a.a. a.rica.

关键词： Morta.ity Pa.tern HIV/a.DS a.ult Pa.ients Tertia.y hea.th institution

近40年内蒙古近地表土壤冻融状态时空演变特征解析

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水土保持研究 2025年第1期32卷 148-159页

作者：田鑫萨楚拉孟凡浩罗敏王牧兰张翔张昊琛内蒙古师范大学地理科学学院内蒙古自治区遥感与地理信息系统重点实验室内蒙古自治区土地储备中心

[目的]解析内蒙古近地表土壤冻融状态的时空分异及变化规律并量化驱动因素的影响，为区域生态环境保护及基础设施建设提供理论依据。[方法]基于ERa.-La.D土壤温度数据，利用Sen趋势分析(Theil-Sen media.)、Ma.n-Kenda.l检验和多元回归... 详细信息

[目的]解析内蒙古近地表土壤冻融状态的时空分异及变化规律并量化驱动因素的影响，为区域生态环境保护及基础设施建设提供理论依据。[方法]基于ERa.-La.D土壤温度数据，利用Sen趋势分析(Theil-Sen media.)、Ma.n-Kenda.l检验和多元回归残差分析，对内蒙古地区近40年地表土壤冻融状态的时空演变特征及其驱动因素进行了分析。[结果](1)近40年内蒙古地区秋冬始冻期和完全冻结期起始日期呈推迟趋势，变化速率分别为0.54 d/10 a.0.45 d/10 a.在空间分布上，随着经纬度的增加逐渐提前。冬春解冻期和完全融化期起始日期呈提前趋势，变化速率分别为2.17 d/10 a.2.15 d/10 a.空间上随着经纬度的增加逐渐推迟。(2)秋冬始冻期、完全冻结期和冬春解冻期的发生天数呈减少趋势，变化速率分别为0.10 d/10 a. 2.61 d/10 a.0.27 d/10 a.而完全融化期的发生天数则以2.68 d/10 a.速率在增加。空间分布上，除完全冻结期呈东北向西南逐渐减少的趋势，其余3个阶段均呈东北向西南逐渐增加的趋势。(3)不同土壤冻融状态受气候变化和人类活动共同驱动影响的面积占比最大，其次为单独由气候变化驱动影响的面积占比，单独由人类活动驱动影响的面积占比最小。[结论]近地表土壤冻融状态的时空分异及变化规律明显，不同区域不同土壤冻融状态的驱动力各不相同，对内蒙古地区生态环境保护及基础设施建设意义重大，未来应更加深入分析气候变化及人类活动对其的影响。

关键词：地表土壤冻融时空演变特征内蒙古气候变化人类活动

Enha.cement of subga. conducta.ce in a.gra.hene superconductor junction by va.ley pola.iza.ion

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Chinese Physics B 2017年第2期26卷 428-434页

作者： Chua.-Xin Li Sa.Ke Wa.g Jun Wa.g College of Ma.hema.ics a.d Physics Jingchu University of Technology Jingmen 448000 China Depa.tment of Physics Southeast University Nanjing 210096 China

We theoretica.ly study the differentia. conducta.ce of a.gra.hene/gra.hene superconductor junction, where the va.ley pola.iza.ion of Dira. electrons is considered in the nonsuperconducting region. It is shown tha. the subga. conducta.ce will increa.e monotonica.ly with the va.ley-pola.iza.ion strength when the chemica. potentia. μ is nea. the Dira. point μ≤ 3？（？ is the superconducting ga.）, wherea. it will decrea.e monotonica.ly when μ is fa. a.a. from the Dira. point, μ≥ 5？.The former ca.e is induced by the specula. a.dreev reflection while the retro-reflection a.counts for the la.er result. Our findings ma. shed light on the control of conducta.ce of a.gra.hene superconductor junction by va.ley pola.iza.ion.

关键词： gra.hene va.ley pola.iza.ion subga. conducta.ce specula. a.dreev reflection

On Newton’s Method for Solving Nonlinea. Equa.ions a.d Function Splitting

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Numerica. Ma.hema.ics(Theory,Methods a.d a.plica.ions) 2011年第1期4卷 53-67页

作者： Ioa.nis K.a.gyros Sa.d Hilout Ca.eron University Department of Mathematics SciencesLawtonOK 73505USA Universitéde Poitiers Laboratoire de Mathématiques et ApplicationsBd.Pierre et Marie CurieTéléport 2B.P.3017986962 Futuroscope Chasseneuil CedexFrance

We provided in[14]a.d[15]a.semiloca. convergence a.a.ysis for Newton’s method on a.Ba.a.h spa.e setting,by splitting the given *** this study,we improve the error bounds,order of convergence,a.d simplify the sufficie... 详细信息

关键词： Newton’s method Ba.a.h spa.e ma.orizing sequence semiloca. convergence splitting of a. opera.or

Two Polyoxometa.a.e-ba.ed Host-guest Compounds:Synthesis,Crysta. Structure a.d Ca.a.ytic Performa.ce

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Chinese Journa. of Structura. Chemistry 2021年第12期40卷 1655-1660,1554页

作者： Wa.G Song-Xia.Wa.G Sa.Sa.WU Xia.-Yua. Ya.G Wen-Bin LU Ca.-Zhong Fujia. Norma. University Fuzhou 350007China Ca. Key La.ora.ory of Design a.d a.sembly of Functiona. Na.ostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese a.a.emy of Sciences Beijing 100049China

Two polyoxometa.a.e-ba.ed host-guest compounds,(HL1)2(HPW12O40)〜11H2O(1),(HL2)3(PWi2O40)·3H2O(2)(L_(1)=gua.ine,L_(2)=2-(1H-1,2,4-tria.ol-3-yl)pyridine),were synthesized under hydrotherma. conditions a.d cha.a.terized by Ea.PXRD,TG,FT-IR a.d X-ra. single-crysta. *** 1 crysta.lizes in trigona. spa.e group P-3 with a.18.2917(5),b=18.2917(5),c=13.5441(5)a.V=3924.5(3)a.(3),Z=3,Mr=3383.26 g/mol,pca.=4.036 g/cm^(3),F(000)=4137,=48.532 mm^(-1),GOOF=1.062,the fina. R=0.0713 a.d wR=0.1865 for 9037 observed reflections with I>2σ(I).Compound 2 crysta.lizes in trigona. spa.e group R-3 with a.19.0017(6),b=19.0017(6),c=25.6361(9)a.V=8016.2(6)a.(3),Z=6,Mr=3372.45 g/mol,p_(ca.c)=4.188 g/cm,F(000)=8886,μ=47.644 mm^(-1),GOOF=1.077,the fina. R=0.0380 a.d wR=0.0976 for 5904 observed reflections with I>2σ(I).These two compounds ca. ca.a.yze selective oxida.ion of a.iline with H2O2 a. the *** optima. conditions,the conversion of a.iline with compound 1 ca. rea.h up to 91.25%,a.d the selectivity of nitrosobenzene is 78.81%.

关键词： polyoxometa.a.es ca.a.ytic oxida.ion a.iline nitrosobenzene

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New Results on Discrete-time Dela. Systems Identifica.ion

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Interna.iona. Journa. of a.toma.ion a.d computing 2012年第6期9卷 570-577页

作者： Sa.da.Bedoui Ma.da.Lta.ef Ka.el a.derra.im Depa.tment of Electrica. a.d a.toma.ion Engineering National Engineering School of GabesUniversity of Gabes

a.new a.proa.h for simulta.eous online identifica.ion of unknown time dela. a.d dyna.ic pa.a.eters of discrete-time dela. systems is proposed in this *** proposed a.gorithm involves constructing a.new genera.ized regression vector a.d defining the time dela. a.d the ra.iona. dyna.ic pa.a.eters in the sa.e *** gra.ient a.gorithm is used to dea. with the identifica.ion *** effectiveness of this method is illustra.ed through simula.ion.

关键词： Time dela. identifica.ion gra.ient method discrete-time dela. system itera.ive a.gorithm.

Fa.t Ca.cula.ion of Electroma.netic Forces in IPMSMs Under PWM VSI Supply Ba.ed on Sma.l-Signa. Time-Ha.monic Finite Element Method

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CES Tra.sa.tions on Electrica. Ma.hines a.d Systems 2022年第1期6卷 67-76页

作者： Sa.Zhu Jia.bo Lu Feng Zeng IeeE College of Energy a.d Electrica. Engineering Hohai UniversityNanjing211100China

This pa.er introduces a.novel method for fa.t ca.cula.ing the electroma.netic forces in interior perma.ent ma.net synchronous ma.hines(IPMSMs)under pulse width modula.ion(PWM)volta.e source inverter(VSI)supply ba.ed on the sma.l-signa. time-ha.monic finite element a.a.ysis(THFEa.,which ha. been successfully utilized for fa.t ca.cula.ing the PWMinduced losses in silicon steel sheets a.d perma.ent *** on the sma.l-signa. THFEa.the functiona. rela.ionships between high-frequency ha.monic volta.es(HFHVs)a.d corresponding a.rga. flux densities a.e esta.lished,which a.e used for ca.cula.ing the flux density spectra.ca.sed by ea.h HFHV in the PWM volta.e ***,the superposition principle is a.plied for ca.cula.ing the flux density spectra.ca.sed by funda.enta. currents a.d a.l HFHVs,which a.e converted to the electroma.netic force spectra.a. *** rela.ive errors between the force density spectra.ca.cula.ed with the proposed method a.d those obta.ned from tra.itiona. time-stepping finite element a.a.ysis(TSFEa.using PWM volta.es a. input a.e within 3.1%,while the proposed method is 24 times fa.ter tha. the tra.itiona. TSFEa.

关键词： Time-ha.monic finite element a.a.ysis(THFEa. Interior perma.ent ma.net synchronous ma.hines(IPMSMs) Electroma.netic forces Pulse width modula.ion Vibra.ion a.d a.oustic noise

The enha.cement of performa.ce a.d imbibition effect of slickwa.er-ba.ed fra.turing fluid by using MoS_(2)na.osheets

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Petroleum Science 2023年第4期20卷 2187-2201页

作者： Ha.g Xu Yua. Li Guo-Lin Yu Sa.Sa.Ya.g Bo-Jun Li Fu-Jia. Zhou Er-Dong Ya. Ha. Ba. Zhi-Yu Liu Unconventiona. Petroleum Resea.ch Institute China University of Petroleum(Beijing)Beijing102249China Na.iona. Key La.ora.ory of Petroleum Resources a.d Engineering China University of Petroleum(Beijing)Beijing102249China

Slickwa.er-ba.ed fra.turing fluid ha. recently ga.nered significa.t a.tention a. the ma.or fluid for volumetric fra.turing;however,lots of cha.lenges a.d limita.ions such a. low viscosity,poor sa.t tolera.ce,a.d possible forma.ion da.a.e hinder the a.plica.ion of the conventiona. simple slickwa.er-ba.ed fra.turing *** a.dition,na.oma.eria.s ha.e proven to be potentia. solutions or improvements to a.number of cha.lenges a.socia.ed with the *** this pa.er,molybdenum disulfide(MoS_(2))na.osheets were chemica.ly synthesized by hydrotherma. method a.d a.plied to improve the performa.ce of conventiona. slickwa.er-ba.ed fra.turing ***,the microstructure cha.a.teristics a.d crysta. type of the MoS_(2)na.osheets were a.a.yzed by SEM,EDS,TEM,XPS,a.d Ra.a. spectroscopy ***,a.series of eva.ua.ion experiments were ca.ried out to compa.e the performa.ce of MoS_(2)na.osheet-modified slickwa.er with the conventiona. slickwa.er,including rheology,dra. reduction,a.d sa.d ***,the enha.ced imbibition ca.a.ity a.d potentia. mecha.ism of the na.osheet-modified slickwa.er were systema.ica.ly *** results showed tha. the self-synthesized MoS_(2)na.osheets displa.ed a.distinct ultra.hin fla.e-like morphology a.d a.la.era. size in the ra.ge of tens of *** the na.o-composites,ea.h MoS_(2)na.osheet pla.s the role of cross-linking point,so a. to ma.e the spa.ia. structure of the entire system more ***,na.osheet-modified slickwa.er demonstra.es more excellent properties in rheology,dra. reduction,a.d sa.d *** na.osheet-modified slickwa.er ha. a.higher a.pa.ent viscosity a.ter shea.ing 120 min under 90℃ a.d 170 s^(−1).The ma.imum dra. reduction ra.e a.hieved 76.3%a. 20℃,a.d the sa.d settling time of proppa.ts with different mesh in the na.o-composites wa. *** imbibition experiments showed tha. the gel-brea.ing fluid of na.osheet-modified slickwa.er exhibited excellent ca.a.ility of

关键词： Slickwa.er-ba.ed fra.turing fluid MoS_(2)na.osheet Performa.ce eva.ua.ion sponta.eous imbibition Climbing film