检索结果-南通市图书馆

failure to Rescue as a Quality Metric in Congenital Heart Surgeries in a High-Complexity Service Provider Institution Located in a Middle-Income Country

引用

Congenital Heart Disease 2024年第2期19卷 207-218页

作者： Gustavo Cruz Santiago Pedroza Juan f.vélez Jessica Largo Juan f.Tejada Jorge H.Mejía-Mantilla Departamento de Anestesiología Fundación Valle del LiliCali760032Colombia Centro de Investigaciones Clínicas Fundación Valle del LiliCali760032Colombia Departamento de Cardiología Pediátrica Fundación Valle del LiliCali760032Colombia facultad de Medicina Universidad IcesiCali760031Colombia Unidad de Cuidado Intensivo Fundación Valle del LiliCali760032Colombia

Background:failure to rescue has been an effective quality metric in congenital heart ***,mor-bidity and mortality depend greatly on non-modifiable individual factors and have a weak correlation with better-quality *** aim to measure the complications,mortality,and risk factors in pediatric patients undergoing congenital heart surgery in a high-complexity institution located in a middle-income country and compare it with other institutions that have conducted a similar ***:A retrospective observational study was conducted in a high-complexity service provider institution,in Cali,*** pediatric patients undergoing any congenital heart surgery between 2019 and 2022 were *** main outcomes evaluated in the study were complication,mortality,and failure to rescue *** and multivariate logistic regression analysis was performed with mortality as the outcome ***:We evaluated 308 congenital heart *** the outcomes,201(65%)complications occurred,23(7.5%)patients died,and the fTR of the entire cohort was 11.4%.The presence of a postoperative complication(OR 14.88,CI 3.06–268.37,p=0.009),age(OR 0.79,CI 0.57–0.96,p=0.068),and urgent/emergent surgery(OR 8.14,CI 2.97–28.66,pficant variables in predicting ***:failure to rescue is an effective and comparable quality measure in healthcare institutions and is the major contributor to postoperative mortality in congenital heart *** our higher mortality and complication rate,we obtained a comparable failure to rescue rate to high-income countries’health institutions.

关键词： Congenital heart surgery complication mortality failure to rescue quality metric

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

复方中草药对兔生长性能和肠道健康的影响

引用

中国兽医杂志 2024年第1期60卷 134-143页

作者：徐翔飞黄盼崔雪梅季权安肖琛闻韦强黄叶娥鲍国连刘燕浙江农林大学动物科技学院·动物医学院浙江杭州311300 浙江省农业科学院畜牧兽医研究所浙江杭州310021

为了研究复方中草药对兔生长性能、免疫功能、肠道消化酶活性、抗氧化能力、肠道形态和肠道微生物的影响,本试验选取72只5周龄健康新西兰大白兔,随机分成对照组(CN,饲喂基础饲粮)和中草药组(CM,基础饲粮中添加600 mg/kg复方中草药),每... 详细信息

为了研究复方中草药对兔生长性能、免疫功能、肠道消化酶活性、抗氧化能力、肠道形态和肠道微生物的影响,本试验选取72只5周龄健康新西兰大白兔,随机分成对照组(CN,饲喂基础饲粮)和中草药组(CM,基础饲粮中添加600 mg/kg复方中草药),每组36只,试验周期为42 d。每周测定各组兔的采食量和体增重,计算平均日采食量(ADfI)、平均日增重(ADG)和料重比(f/G);试验第21、42天,每组随机选择4只健康兔,采血分离血清,检测生化指标和免疫指标;试验结束(第42天),收集兔小肠肠段,通过ELISA检测小肠黏膜消化酶活性和抗氧化指标,苏木精-伊红(H.E.)染色观察小肠绒毛形态,实时荧光定量PCR(qRT-PCR)检测紧密连接蛋白mRNA的相对表达量,高通量测序分析盲肠微生物多样性。结果显示,两组间ADfI、ADG和f/G均差异不显著(P>0.05)。与对照组相比,在试验第21天时,中草药组兔血清中总胆固醇(Tchol)含量极显著降低(P谷胱甘肽过氧化物酶(GSH-Px)活性显著降低(Pv)显著增长(Pv/C)极显著升高(P<0.01);十二指肠中闭锁蛋白(Occludin)mRNA相对表达量显著上调(P<0.05),回肠中膜周蛋白(ZO-1)和Occludin mRNA相对表达量也显著上调(P<0.05);盲肠内容物细菌16S rRNA基因的菌群丰富度指数(Chaol)丰度值显著升高(P<0.05);盲肠在属水平分类上的主要优势菌群为梭菌属(Clostridiales)和阿克曼菌属(Akkermansia)等。结果表明,兔日粮中添加中草药饲料添加剂能增强机体免疫力和抗氧化能力,维持肠道黏膜形态的完整,提高肠道消化酶活性,改善肠道菌群。

关键词：复方中草药兔生长性能消化酶肠道发育肠道微生物

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

模拟冻土区水合物地层骨架的人造岩心实验研究

引用

天然气地球科学 2014年第7期25卷 1120-1126页

作者：郑明明蒋国盛宁伏龙刘力张凌李实张可 Chikhotkin v.f. 中国地质大学(武汉)工程学院湖北武汉430074 中国石油勘探开发研究院提高石油采收率国家重点实验室北京100083

目前,天然气水合物物性认识和资源评价研究都受到了天然岩心来源的极大限制。因此,开发出一套贴近于水合物地层的人造岩心技术特别是基础骨架制备思路显得尤为必要。从实际水合物地层特性出发,选取地质资料丰富、水合物成藏条件良好的... 详细信息

目前,天然气水合物物性认识和资源评价研究都受到了天然岩心来源的极大限制。因此,开发出一套贴近于水合物地层的人造岩心技术特别是基础骨架制备思路显得尤为必要。从实际水合物地层特性出发,选取地质资料丰富、水合物成藏条件良好的美国阿拉斯加北部斜坡冻土区Mount Elbert Unit C-GH1井段地层作为模拟对象,选用石英砂环氧树脂压制胶结岩心方法,通过全面实验分析了影响人造岩心渗透率的主要因素,然后以渗透率和孔隙度为实验指标设计正交实验研究各因素对指标的影响,确定了与目标地层渗透率和孔隙度最为接近的2个配方,并通过力学单轴抗压强度值的比较进一步明确了较优配方。实验研究结果表明,设计的较优配方与目标地层的粒径配比、渗透率、单轴抗压强度和密度基本相同,孔隙度则较为接近,采用这种技术流程可以制备出贴近原位的水合物沉积物骨架。

关键词：天然气水合物人造岩心正交实验渗透率孔隙度力学强度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

《无因的反抗》评论撷英

引用

世界电影 1991年第5期 197-201页

作者： v.f.珀金斯李迅

第一本尼古拉斯·雷认为,电影是一种传播媒介,清晰是头等重要的。他的影片中的主要人物出场往往非常简捷。第一个镜头通常引出主角,而在第一本结束时,所有重要人物关系都要呈现给观众。《无因的反抗》开始时的展示部分就令人吃惊地迅... 详细信息

第一本尼古拉斯·雷认为,电影是一种传播媒介,清晰是头等重要的。他的影片中的主要人物出场往往非常简捷。第一个镜头通常引出主角,而在第一本结束时,所有重要人物关系都要呈现给观众。《无因的反抗》开始时的展示部分就令人吃惊地迅捷和清晰。演职员表后的第一个镜头是詹姆斯·迪恩(吉姆的扮演者)

关键词：扮演者人物关系主要人物摄影机运动在路上剪辑风格画框库斯尼古拉斯内心冲突

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

In situ digital testing method for quality assessment of soft soil improvement with polyurethane

引用

Journal of Rock Mechanics and Geotechnical Engineering 2024年第5期16卷 1732-1748页

作者： X.f.Wang C.J.Wang W.v.Yue Z.J.Zhang Z.Q.Yue Department of Civil Engineering China University of Geosciences (Beijing)BeijingChina Department of Water Science and Engineering Zhengzhou UniversityZhengzhouChina Department of Geotechnical Engineering Tongji UniversityShanghaiChina Department of Civil Engineering The University of Hong KongChina

This study purposes an in situ testing method on quality assessment of soil *** drilling data includes the spatial distribution and in situ strength of untreated and treated soil along three different drillholes measured by on-site drilling monitoring *** factual drilling data can characterize the degree of soil improvement by penetration injection with permeable *** from on-site drilling monitoring shows that the linear zones represent constant drilling speeds shown in the plot of drill bit advancement *** drilling time,which indicates the spatial distributions of soil *** soil profile at the study site is composed of four layers,which includes fill,untreated silty clay,treated silty clay,and mucky *** results of soil profile are verified by the parallel site *** constant drilling speeds profile the coring-resistant strength of drilled *** comparing with the untreated silty clay,the constant drilling speeds of the treated silty clay have been decreased by 13.0-62.8%.Two drilling-speed-based indices of 61.2%and 65.6%are proposed to assess the decreased average drilling speed and the increased in situ strength of treated silty *** tests,*** compressive strength(UCS)test,have been performed with core sample to investigate and characterize in situ strength by comparing that with drilling *** show that the average predicted strengths of treated silty clay are 2.4-6.9 times higher than the average measured strength of untreated silty *** UCS-based indices of 374.5%and 344.2%verified the quality assessment(QA)results by this new in situ *** method provides a cost-effective tool for quality assessment of soil improvement by utilizing the digital drilling data.

关键词： Drilling process monitoring system Hydraulic rotary drilling process Constant drilling speed Soil improvement Quality assessment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Phase composition,conductivity,and sensor properties of cerium-doped indium oxide

引用

Nano Materials Science 2024年第2期6卷 193-200页

作者： M.I.Ikim G.N.Gerasimov v.f.Gromov O.J.Ilegbusi L.I.Trakhtenberg N.N.Semenov.f.deral Research Center for Chemical Physics of RAS MoscowRussia University of Central florida OrlandoFLUSA Moscow Institute of Physics and Technology(State University) DolgoprudnyMoscow RegionRussia Lomonosov Moscow State University MoscowRussia

The hydrothermal synthesis of In_(2)O_(3)and CeO_(2)–In_(2)O_(3)is investigated as well as the properties of sensor layers based on these *** the synthesis of In_(2)O_(3),intermediate products In(OH)_(3)and InOOH are formed,which are the precursors of stable cubic(c-In_(2)O_(3))and metastable rhombohedral(rh-In_(2)O_(3))phases,respectively.A transition from c-In_(2)O_(3)to rh-In_(2)O_(3)is observed with the addition of CeO_(2).The introduction of cerium into rh-In_(2)O_(3)results in a decrease in the sensor response to hydrogen,while it increases in composites based on c-In_(2)O_(3).The data on the sensor activity of the composites correlate with XPS results in which CeO_(2)causes a decrease in the concentrations of chemisorbed oxygen and oxygen vacancies in rh-In_(2)O_(3).The reverse situation is observed in composites based on c-In_(2)O_(3).Compared to In_(2)O_(3)and CeO_(2)–In_(2)O_(3)obtained by other methods,the synthesized composites demonstrate maximum response to H_(2)at low temperatures by 70–100℃,and have short response time(0.2–0.5 s),short recovery time(6–7 s),and long-term stability.A model is proposed for the dependence of sensitivity on the direction of electron transfer between In_(2)O_(3)and CeO_(2).

关键词： Cerium oxide Indium oxide Nanocomposite Hydrothermal method Cubic phase Rhombohedral phase Sensor response Conductivity Hydrogen Response/recovery time

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

氮碳包封fe_(3)C纳米颗粒作为高效富氧还原电催化剂

引用

Science China Materials 2024年第3期67卷 762-770页

作者：汪翠萍李智雷杰李松 Stijn f.L.Mertens 胡劲松 School of Chemical Engineering Anhui Province Key Laboratory of Specialty PolymersAnhui University of Science and TechnologyHuainan 232001China Department of Chemistry Energy Lancaster and Materials Science LancasterLancaster UniversityLancaster LA14YBUnited Kingdom Institute of Energy Hefei Comprehensive National Science CenterHefei 230031China

高活性MOf基催化剂的设计和合成为促进动力学不利的氧还原反应(ORR)过程开辟了新的途径.本研究通过在ZIf-8前驱体表面涂覆二茂铁甲酸,然后进行两步炭化工艺,设计和制备了一种具有新型结构的高效电催化剂,以提高ORR性能.两步炭化过程对... 详细信息

高活性MOf基催化剂的设计和合成为促进动力学不利的氧还原反应(ORR)过程开辟了新的途径.本研究通过在ZIf-8前驱体表面涂覆二茂铁甲酸,然后进行两步炭化工艺,设计和制备了一种具有新型结构的高效电催化剂,以提高ORR性能.两步炭化过程对于将热解fe_(3)C纳米颗粒封装到碳纳米管(CNTs)中以及将fe单原子隔离到N掺杂碳(NC)基体上至关重要.此外,fe元素的相对含量对优化催化剂的ORR性能至关重要.所制得fe_(3)C@CNTs/NC-M催化剂结构先进,在碱性溶液中表现出良好的长期稳定性和电催化ORR性能,其半波电位和极限电流分别达到0.941 v和6.31 mA cm^(-2).此外,该电催化剂在甲醇溶液中具有较强的耐受性和良好的稳定性.fe_(3)C@CNTs/NC-M锌空气电池(ZAB)具有1.525 v的开路电位,420 mA cm^(-2)时的峰值功率密度为348 mW cm^(-2),10 mA cm^(-2)时的最大容量为843 mA h g_(Zn)^(-1).因此,这种合成策略为构建具有有效和稳定的ORR性能的MOf基电催化材料提供了一条有效途径.

关键词： metal-organic frameworks carbon nanotubes N-doped carbon matrix oxygen reduction reaction Zn-air battery

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

钠离子电池Na3v2(PO4)2O2f正极材料的制备与性能研究

钠离子电池Na3V2(PO4)2O2F正极材料的制备与性能研究

引用

作者：谷振一伊犁师范大学

学位级别：硕士

钠离子电池和锂离子电池具有相似的工作机理,并且相较于锂资源的匮乏,钠资源在地壳中含量更丰富,价格更低,钠离子电池成本更廉价。因此,钠离子电池被认为是未来具有发展潜力的大规模能源存储系统之一。然而,钠离子电池未来仍需克服诸多... 详细信息

钠离子电池和锂离子电池具有相似的工作机理,并且相较于锂资源的匮乏,钠资源在地壳中含量更丰富,价格更低,钠离子电池成本更廉价。因此,钠离子电池被认为是未来具有发展潜力的大规模能源存储系统之一。然而,钠离子电池未来仍需克服诸多挑战,尤其是钠离子电池的正极材料方面,例如能量密度和功率密度较低、循环稳定性较差、粘结剂粘结性较差等缺点,这些缺点阻碍了钠离子电池在未来能源存储领域的进一步发展。因此,设计和制备研发性能优异的钠离子电池的正极材料就尤为重要。在当今研究较为广泛的钠离子电池正极材中,钠超离子导体(NASICON)结构的聚阴离子型磷酸盐正极材料具有结构稳定且多样性的优势,其晶体结构是由MO(M通常代表过渡金属)八面体和PO四面体构成的3D大型隧道结构框架,具有较快的Na迁移速率,并且较大的聚阴离子框架有利于结构的稳定性,安全性高,从而引起了科学家们的广泛关注。其中,较为典型的NASICON结构的正极材料应为Nav(PO)(NvP),其较为开放的3D的钠离子迁移隧道,不仅有利于Na的迁移,也提升了晶体结构的稳定性,引起了科学家们的广泛研究。虽然NvP正极材料具有明显的优势,但由于其较低的电子电导率,限制了其性能的有效的发挥。同时,NvP具有较低的工作电压(3.3-3.4 v),最终导致其能量密度约为394 Wh kg,这远远低于商业的锂离子电池正极材料(例如,LifePO正极材料的能量密度约为500-530 Wh kg),这严重限制了NvP钠离子电池正极材料的应用。基于NvP以上的不足之处,本文通过利用电负性较强的阴离子f对NvP进行阴离子位的调控,成功的制备出具有高电压、高容量和高能量密度的Nav(PO)Of(NvPOf)正极材料。同时,对制备的NvPOf正极材料进行了形貌、性能和粘结剂的优化。具体研究内容和结果如下:(1)对NvP材料的阴离子位进行调控。通过利用电负性较强的阴离子f对NvP进行阴离子位的调控,利用部分具有更强离子性的v.f.取代共价性的v-O键,这会引起v-O键的共价性减弱,导致Na脱嵌过程中具有更高的氧化还原电位,从而提升材料的工作电压、放电比容量和电池的能量密度。通过使用一种较为简单的水热合成方法,并对合成过程中的pH和水热温度进行了精确的调控,成功的制备出纳米级别无碳含量的NvPOf正极材料。将该材料应用于钠离子电池系统当中,并对其电化学性能、电极动力学反应机理进行了深入的研究。结果表明当pH=7,水热温度为170℃,水热时间为12小时(h)时为最优条件,制备出的NvPOf具有长度约为600 nm和宽度为300 nm高度均匀的一维棒纳米块。同时对不同条件下制备的NvPOf进行了钠电性能的测试,结果表明最优条件下制备的NvPOf具有最为优异的储钠性能。最优条件下制备的NvPOf做钠电正极时的放电比容量高达123.2 mA h g,平均电压为3.8 v。同时对不同合成条件下制备的NvPOf的动力学进行了深度探究。通过利用电负性较强的阴离子f对NvP进行阴离子位的调控,得到具有高电压、高容量和高能量密度的NvPOf正极材料,为该材料的实用化奠定了基础。同时阴离子位调控设计,也可以为提升其它二次电池正极材料体系的工作电压和能量密度提供有效的思路。(2)为了进一步优化制备的NvPOf正极材料的电化学性能,对制备电极材料中的粘结剂的选择进行优化。通过对水系粘结剂-海藻酸钠(SA)、羧甲基纤维素钠(CMC)、丙烯腈多元共聚物(LA133)和有机系粘结剂-聚偏氟氯乙烯(Pv.f.进行了比较,得到了一种高效的有利于NvPOf正极材料性能发挥的水性粘结剂SA,并对其Na迁移动力学和机理进行了深度研究。结果表明,SA在NvPOf正极表面形成正极电解质相间界面膜(CEI)有利于稳定电极结构和提升电极动力学。此外,我们还将SA制备的NvPOf电极组装成全电池,验证了该粘结剂作为钠离子电池正极材料粘结剂的实用性。同时,也为其它正极材料性能的提升提供一种新的思考方式。

关键词：钠离子电池正极材料 Na3v2(PO4)O2f 粘结剂钠离子迁移动力学

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Endoscopic ultrasound-guided portal pressure gradient identifies patients with previously undiagnosed clinically significant portal hypertension

引用

Portal Hypertension & Cirrhosis 2024年第2期3卷 67-74页

作者： Jerome C.Edelson Scott f.D.Edelson John G.Quiles Cyrus v.Edelson Eric M.Montminy Christian L.Horn John P.Magulick Don C.Rockey Department of Gastroenterology and Hepatology Brooke Army Medical CenterFort Sam HoustonTexasUSA Department of Medicine Uniformed Services University of the Health SciencesBethesdaMarylandUSA Department of Medicine Brooke Army Medical CenterFort Sam HoustonTexasUSA John H.Stroger Jr.Hospital of Cook County ChicagoIllinoisUSA Digestive Disease Research Center Medical University of South CarolinaCharlestonSouth CarolinaUSA

Aims:Portal hypertension(PH)is a complication of cirrhosis that leads to hepatic *** the portal pressure gradient(PPG)provides valuable information for disease assessment,staging,and *** this study,we aimed to report the utilization of endoscopic ultrasound(EUS)-guided PPG(EUS-PPG)measurements in a real-world ***:This retrospective analysis included patients at a tertiary care center who underwent EUS-PPG between february 2021 and May *** most common indication was to establish or exclude the diagnosis of cirrhosis,followed by an assessment of surgical risk in the setting of suspected *** demographic and clinical data were collected,and statistical analysis was performed using the Student's t ***:Eighteen patients underwent *** success was achieved in 17 of the 18 *** complications were *** mean scores of Child-Pugh,Model for End-Stage Liver Disease-Sodium,and fibrosis-4 scores were 5.1±0.5,9.0±3.0,and 3.7±4.5,*** the 18 patients,two presented with esophageal varices and six with portal hypertensive *** mean PPG was 5.8±4.5 mmHg,and five patients exhibited clinically significant PH(CSPH).Of the 18 patients,15 underwent concurrent EUS-liver biopsy,which was 100%successful and provided diagnostic histology for all *** PPG data led to changes in the clinical management of 17 ***:EUS-PPG is safe and technically *** Child-Pugh score did not correlate well with the presence of CSPH;however,PPG measurements resulted in changes in the management of almost all *** studies correlating EUS-PPG with other assessments of liver diseases are required.

关键词： EUS portal hypertension portal pressure gradient

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Liquid crystal immunosensors for the selective detection of Escherichia coli with a fast analysis tool

引用

Photonics Research 2024年第7期12卷 1564-1573页

作者： SANDRO C.OLIvEIRA MARIA S.SOARES BÁRBARA v.GONÇALvES ANDREIA C.M.RODRIGUES AMADEU M.v.M.SOARES RITA G.SOBRAL NUNO f.SANTOS JAN NEDOMA PEDRO L.ALMEIDA CARLOS MARQUES CICECO-Aveiro Institute of Materials Physics DepartmentUniversity of Aveiro3810-193 AveiroPortugal i3N Physics DepartmentUniversity of Aveiro3810-193 AveiroPortugal Associate Laboratory i4HB-Institute for Health and Bioeconomy School of Sciences and TechnologyNOVA University of Lisbon1099-085 LisbonPortugal CESAM-Centre for Environmental and Marine Studies and Department of Biology University of Aveiro3810-193 AveiroPortugal Department of Telecommunications VSB-Technical University of OstravaOstrava 70800Czech Republic i3N-CENIMAT School of Sciences and TechnologyNOVA University of Lisbon1099-085 LisbonPortugal UnIRE ISELPolytechnic Institute of Lisbon1549-020 LisbonPortugal Department of Physics VSB-Technical University of OstravaOstrava 70800Czech Republic

The consumption of contaminated food may cause serious illnesses,and traditional methods to detect Escherichia coli are still associated with long waiting times and high costs given the necessity to transport samples to specialized *** is a need to develop new technologies that allow cheap,fast,and direct monitoring at the site of ***,in this work,we developed optical immunosensors for the selective detection of ***,based on liquid crystal technology,whose molecules can align in different manners depending on the boundary conditions (such as substrates) as well as the environment that they *** glass substrate was functionalized with *** antibody using cysteamine as an intermediate,and a vertical alignment was imposed on the liquid crystal molecules by using DMOAP during *** presence of bacteria disrupts the alignment of the liquid crystal molecules,changing the intensity of light emerging between cross polarizers,measured using a polarized optical microscope and a *** was possible to detect *** in suspensions in the concentration range from 2.8 cells/mL to 2.8×10^(9) cells∕*** was also evaluated,and the sensors were used to analyze contaminated water samples.A prototype was developed to allow faster,in-situ,and easier analysis avoiding bulky instruments.

关键词： crystal alignment analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：