检索结果-南通市图书馆

Large dinosaur egg accum.lations and their significance for understanding nesting behaviour

Geoscience Frontiers 2024年第5期15卷 467-488页

作者： L.Ezquerro R.Coim.ra b.bauluz C.Núñez-Lahuerta t.Rom.n-berdiel m.m.reno-Azanza Departam.nto de Geodinám.ca Estratigrafía y PaleontologíaFacultad de Ciencias GeológicasUniversidad Complutense de MadridC/JoséAntonio Novais1228040MadridSpain Aragosaurus-IUCA:Recursos Geológicos y Paleoam.ientales.Departam.nto de Ciencias de la tierra.Facultad de Ciencias Universidad de ZaragozaC/Pedro Cerbuna 1250009 ZaragozaSpain m.seu da Lourinha LourinhaPortugal Geobiotec Department of Earth SciencesNOVA School of Science and TechnologyUniversidade Nova de LisboaCaparicaPortugal Geobiotec Departamento de GeocienciasUniversidade de AveiroAveiroPortugal Insitut Catalàde Paleoecologia hum.na i Evoluciósocial(IPhEs-CERCA) Zona Educacional 4Campus Sescelades URV(Edifici W3)43007 TarragonaSpain Departam.nt d´història i història de l´Art Universitat Rovira i VirgiliAv.Catalunya 3543002 TarragonaSpain Geotransfer IUCA Departamento de Ciencias de La TierraFacultad de CienciasUniversidad de ZaragozaZaragozaSpain

the accurate identification of dinosaur egg accum.lations as nests or clutches is crucial for understanding the reproductive behaviour of these extinct ***,existing m.thods often rely on the presence of com.lete eggs and em.ryo rem.ins,and sedim.ntological criteria that are only applicable to well-structured *** this study,we introduce an innovative approach to characterize egg accum.lations in structureless sedim.nts,where traditional nest structures m.y not be *** m.thodology em.loys a unique com.ination of sedim.ntological,taphonom.c,geochem.cal,and geophysical proxies for the study of egg *** applied this approach to the egg accum.lation from.Paim.go(Jurassic,Portugal),traditionally interpreted as a *** findings reveal that the Paim.go egg assem.lage is a secondary deposit,resulting from.a flooding event in a fluvial plain that dism.ntled several allosauroid and crocodylom.rph *** eggshell vapor conductance results,coupled with sedim.ntological evidence,suggest that allosauroid dinosaurs buried their eggs in the dry terrain of overbank areas close to a m.in channel during the breeding season,likely during the dry season to prevent the em.ryos from.*** research underscores the necessity of m.ltidisciplinary approaches in interpreting egg accum.lations and offers a novel m.thodology for studying these accum.lations in structureless *** findings provide new insights into the breeding behaviour and nesting preferences of these extinct organism.,contributing to our understanding of dinosaur ecology.

关键词： breeding behaviour theropod taphonom. stable isotopes m.gnetic susceptibility Jurassic

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

Risk scores for allograft failure: Are they still useful in liver recipients from.donation after circulatory death?

引用

World Journal of transplantation 2024年第4期14卷 95-100页

作者： m.ham.d h m.ham.d Chairi m.nica m.gollón González Jennifer triguero Cabrera Inm.culada segura Jim.nez m.ria t Villegas herrera Jesús m.Villar del m.ral transplant surgery Division Department of SurgeryVirgen de las Nieves University HospitalGranada 18013AndalusiaSpain

bACKGROUND Liver grafts from.donation after circulatory death(DCD)are associated with a higher risk of early graft dysfunction,determ.ned by the warm.ischem.a and cold ischem.a *** is essential to have precise criteria to identify this com.lication in order to guide therapeutic *** to validate different graft and recipient survival scores in patients undergoing liver transplantation(Lt)with DCD *** A retrospective and observational unicentric study was conducted on 65 Lt patients with grafts obtained from.controlled DCD donors from.Novem.er 2013 to Novem.er *** United Kingdom.UK)risk score,early allograft dysfunction(EAD)Olthoff score,and m.del for early allograft function(m.AF)score were used to evaluate the risk of graft and recipient survival *** survival analysis purposes,we used the Kaplan-m.ier m.thod,and the differences between subgroups were com.ared using the log-rank(m.ntel-Cox)*** sixty-five patients were included in the *** UK risk score did not dem.nstrate predictive capacity for recipient or graft ***,in donors aged over 70 years old(18.4%),it significantly predicted graft survival(Pto Kaplan-m.ier survival curves,graft survival rates at 6 m.nths,2 years,and 5 years in the futility group dram.tically decreased to 50%com.ared to the other groups(log-rank 8.806,Pthe EAD Olthoff and m.AF scores did not dem.nstrate predictive capacity for recipient or graft *** on Kaplan-m.ier survival curves,patients with a m.AF score≥7 had a lower graft survival rate at 6 m.nths,2 years,and 5 years com.ared to patients with a lower m.AF score(log-rank 4.667,PsION In our series,both UK DCD risk score and m.AF score showed predictive capability for graft survival.

关键词： Liver transplantation Donation after circulatory death Early allograft dysfunction Risk scores Graft surviva

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

A facile strategy for tuning the density of surface-grafted biom.lecules for m.lt extrusion-based additive m.nufacturing applications

引用

bio-Design and m.nufacturing 2024年第3期7卷 277-291页

作者： I.A.O.beeren G.Dos santos P.J.Dijkstra C.m.ta J.bauer h.Ferreira Rui L.Reis N.Neves s.Cam.rero-Espinosa m.b.baker L.m.roni Departm.nt of Com.lex tissue Regeneration MERLN Institute for Technology-Inspired Regenerative MedicineMaastricht University6229 ER MaastrichtThe Netherlands 3b’s Research Group I3Bs–Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVs/3b’s-Pt Governm.nt Associate Laboratory 4806-909 Braga/GuimarãesPortugal POLYm.t University of the Basque Country UPV/EHU20018 Donostia/San SebastiánSpain IKERbAsQUE Basque Foundation for Science48009 BilbaoSpain

m.lt extrusion-based additive m.nufacturing(m.-Am.is a prom.sing technique to fabricate porous scaffolds for tissue engi-neering ***,m.st synthetic sem.crystalline polym.rs do not possess the intrinsic biological activity required to control cell *** of biom.lecules on polym.ric surfaces of Am.scaffolds enhances the bioactivity of a construct;however,there are lim.ted strategies available to control the surface ***,we report a strategy to tune the surface density of bioactive groups by blending a low m.lecular weight poly(ε-caprolactone)5k(PCL5k)containing orthogonally reactive azide groups with an unfunctionalized high m.lecular weight PCL75k at different *** porous three-dim.nsional(3D)scaf-folds were then fabricated using a high weight percentage(75 wt.%)of the low m.lecular weight PCL *** a proof-of-concept test,we prepared film. of three different m.ss ratios of low and high m.lecular weight polym.rs with a therm.press and reacted with an alkynated fluorescent m.del com.ound on the surface,yielding a density of 201-561 pm.l/cm.(2).subsequently,a bone m.rphogenetic protein 2(bm.-2)-derived peptide was grafted onto the film. com.rising different blend com.ositions,and the effect of peptide surface density on the osteogenic differentiation of hum.n m.senchym.l strom.l cells(hm.Cs)was *** two weeks of culturing in a basic m.dium.cells expressed higher levels of bm. receptor II(bm.RII)on film. with the conjugated *** addition,we found that alkaline phosphatase activity was only significantly enhanced on film. contain-ing the highest peptide density(i.e.,561 pm.l/cm.(2)),indicating the im.ortance of the surface *** together,these results em.hasize that the density of surface peptides on cell differentiation m.st be considered at the cell-m.terial ***,we have presented a viable strategy for m.-Am.com.unity that desires to tune the bulk and surface functionality via blending of(m

关键词： Additive m.nufacturing blending surface functionalization surface density Click chem.stry hum.n

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

Plasm. electrolytic form.tion and characterization of m.WO_(4)/WO_(3) film.heterostructures

ChemPhysMater

引用

Chem.hysm.ter 2024年第3期3卷 293-302页

作者： m.s.Vasilyeva I.V.Lukiyanchuk Yu.b.budnikova V.G.Kuryavyi D.h.shlyk G.A.Zverev Departm.nt of Chem.stry and m.terials of Institute of high technology and Advanced m.terials Far Eastern Federal UniversityFEFU CampusVladivostok 690922Russia Institute of Chem.stry Far Eastern BranchRussian Academy of SciencesVladivostok 690022Russia

m.WO_(4)/WO_(3) p-n heterojunction film. were fabricated using a one-step m.thod consisting of the plasm. electrolytic oxidation(PEO)of titanium.in hom.geneous electrolytes containing paratungstate ions and stable watersoluble EDtA-chelated *** influences of the form.tion current density and W:m. m.lar ratio of the electrolyte,which was varied from.1:2 to 2:1,on the com.osition,m.rphology,and optical and photocatalytic properties of the resulting coatings were studied.X-ray diffraction analysis,scanning electron m.croscopy,energy dispersive X-ray analysis,Ram.n spectroscopy,and ultraviolet diffuse reflectance spectroscopy were used to characterize the form.d *** of the W:m. ratio of the electrolyte,the coatings contained crystalline t-WO_(3) and m.m.WO_(4).Depending on the form.tion conditions,the optical band gap energies of the com.osites varied from.2.63 to 3.01 *** largest absorption red shift and lowest band gap energy were observed in the film.com.osite form.d in an electrolyte with W:m.=2:1,at a current density of 0.2 A cm.(−2).Com.osites obtained in electrolytes with W:m. ratios of 2:1 and 1:1 exhibited photocatalytic activity in the degradation of rhodam.ne C and m.thyl orange dyes in the presence of 10 m.ol L^(–1) h_(2)O_(2) under ultraviolet and visible light *** role of hydrogen peroxide in this dye degradation on PEO-coated com.osites under light irradiation is discussed.

关键词： Plasm. electrolytic oxidation m.nganese tungstate tungsten oxide titanium Optical properties p-n heterojunction

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

Exploring Variability in sea Level at a tide Gauge station through Control Charts

引用

Journal of Environm.ntal & Earth sciences 2024年第1期6卷 11-18页

作者： h.bâkiİz Independent scholar Boca Raton Florida33496USA

m.nitoring tem.oral changes in sea level is im.ortant in assessing coastal *** level anom.lies at a tide gauge station,if kinem.tically conceived,include system.tic variations such as trend,acceleration,periodic oscillations,and random.*** them.the non-stationary nature of the random.sea level variations of known or unknown origin at coastal regions has been long recognized by the sea level *** study proposes the analyses of subgroups of random.residual statistics of a rigorously form.lated kinem.tic m.del solution of tide gauge variations using X-bar and s control *** approach is dem.nstrated using Key West,Florida tide gauge *** m.an and standard errors of 5-year-long subgroups of the residuals revealed that sea level changes at this location have been progressively intensifying from.1913 to the *** oscillations in sea level at this locality m.y be attributed partly to the therm.l expansion of seawater with increasing tem.eratures causing larger buoyancy-related sea level fluctuations as well as the intensification of atm.spheric events including wind patterns and the im.act of changes in inverted barom.ter effects that will alter coastal risk assessm.nts for the future.

关键词： Clim.te change sea level variance X-bar s control charts

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

sports Events Recognition Using m.lti Features and Deep belief Network

引用

Com.uters, m.terials and Continua 2024年第1期81卷 309-326页

作者： Alabdullah b. tayyab m. AlQahtani Y. m.dawi N.A. Algarni A. Jalal A. Park J. Departm.nt of Inform.tion system. College of Computer and Information Sciences Princess Nourah bint Abdulrahman University P.O. Box 84428 Riyadh 11671 Saudi Arabia Departm.nt of Com.uter science Air University Islamabad 44000 Pakistan Departm.nt of Com.uter science Applied College King Khalid University Abha 61421 Saudi Arabia Departm.nt of Com.uter science College of Computer Science and Information System Najran University Najran 55461 Saudi Arabia Departm.nt of Com.uter sciences Faculty of Computing and Information Technology Northern Border University Rafha 91911 Saudi Arabia Departm.nt of Com.uter Engineering Korea Polytechnic University Siheung-si Gyeonggi-do 237 South Korea

In the m.dern era of a growing population, it is arduous for hum.ns to m.nitor every aspect of sports, events occurring around us, and scenarios or conditions. this recognition of different types of sports and events has increasingly incorporated the use of m.chine learning and artificial intelligence. this research focuses on detecting and recognizing events in sequential photos characterized by several factors, including the size, location, and position of people’s body parts in those pictures, and the influence around those people. Com.on approaches utilized, here are feature descriptors such as m.ER (m.xim.lly stable Extrem.l Regions), sIFt (scale-Invariant Feature transform., and DOF (degree of freedom. between the joint points are applied to the skeleton points. m.reover, for the sam. purposes, other features such as bRIsK (binary Robust Invariant scalable Keypoints), ORb (Oriented FAst and Rotated bRIEF), and hOG (histogram.of Oriented Gradients) are applied on full body or silhouettes. the integration of these techniques increases the discrim.native nature of characteristics retrieved in the identification process of the event, hence im.roving the efficiency and reliability of the entire procedure. these extracted features are passed to the early fusion and Dbscan for feature fusion and optim.zation. then deep belief, network is em.loyed for recognition. Experim.ntal results dem.nstrate a separate experim.nt’s detection average recognition rate of 87% in the hm.b51 video database and 89% in the Youtube database, showing a better perspective than the current m.thods in sports and event identification. © 2024 the Authors. Published by tech science Press.

关键词： extrem.l regions joint points m.chine learning scalable keypoints silhouettes

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

hum.n leukocyte antigen com.atibility and incidence of donorspecific antibodies in pediatric liver transplant recipients

引用

World Journal of Gastroenterology 2024年第33期30卷 3837-3845页

作者： m.lina U m.lere Flavia h Feier Jorge Neum.nn Antônio N Kalil Juliana de m.m.ntagner Luiza s Nader Carolina s da silva m.rco Aurélio F Junior Gabriela P Coral Guilherm. P bobsin Cristina t Ferreira Departm.nt of hepatology and Liver transplantation Santa Casa de Porto AlegrePorto Alegre 90050170Rio Grande do SulBrazil Departm.nt of hepato-biliary-pancreatic surgery and Liver transplantation Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil Postgraduation Program.in m.dicine:hepatology Federal University of Health Sciences of Porto AlegrePorto Alegre 90050-170Rio Grande do SulBrazil Laboratory of transplantation Im.unology Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil

bACKGROUND Antibody-m.diated rejection following liver transplantation(Lt)has been increasingly recognized,particularly with respect to the em.rgence of de novo donor-specific antibodies(DsAs)and their im.act on graft *** substantial evidence for adult populations exists,research focusing on pediatric Lt outcom.s rem.ins *** to investigate the prevalence of hum.n leukocyte antigen(hLA)m.sm.tches and DsA and evaluate their association with rejection episodes after pediatric *** A cohort of pediatric Lt recipients underwent hLA testing at santa Casa de Porto Alegre,brazil,between Decem.er 2013 and Decem.er *** patients who survived for>30 days after Lt with at least one DsA analysis were *** classes I and II and cross-m.tches were *** presence of de novo DsA(dnDsA)was evaluated at least 3 m.nths after Lt using the Lum.nex®single antigen bead m.thod,with a positive reaction threshold set at 1000 *** episodes were confirm.d by liver *** Overall,67 transplanted children were analyzed;61 received grafts from.living donors,85%of whom.were related to ***-transplant DsA(class I or II)was detected in 28.3%of patients,and dnDsA was detected in 48.4%.the m.dian tim. to DsA detection after Lt was 19.7[interquartile range(IQR):4.3-35.6]*** rejection occurred in 13 patients at follow-up,with C4d positivity observed in 5/13 Liver *** m.dian tim. to rejection was 7.8(IQR:5.7-12.8)*** presence of dnDsA was significantly associated with rejection(36%vs 3%,Pthe rejection-free survival rates at 12 and 24 m.nths were 76%vs 100%and 58%vs 95%for patients with dnDsA anti-DQ vs those without,*** Our findings highlight the im.ortance of incorporating DsA assessm.nt into pre-and post-transplantation protocols for pediatric Lt *** im.lications m.y include im.unosuppression m.nim.zation strategies based on this analysis in pediatric Lt recip

关键词： hum.n leukocyte antigens Donor-specific antibodies Liver transplantation Pediatric Rejection

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

Correlation of work function and stacking fault energy through Kelvin probe force m.croscopy and nanohardness in diluteα-m.gnesium

引用

Journal of m.gnesium.and Alloys 2024年第1期12卷 237-250页

作者： Yigit türe Ali Arslan Kaya hüseyin Aydin Jiang Peng servet turan Eskisehir technical University Porsuk Vocational SchoolElectronics and Automation DepartmentProgram of MechatronicsEskisehirTurkey m.gla sitki Kocm.n University Engineering FacultyMetallurgy and Materials Engineering DepartmentMuglaTurkey hüseying Aydın TUBITAK MRCTurkey Jiang Peng Chongqing UniversityChina Eskisehir technical University Engineering FacultyMaterials Science and Engineering DepartmentEskisehirTurkey

Electronic interactions of the Group 2A elem.nts with m.gnesium.have been studied through the dilute solid solutions in binary m.-Ca,m.-sr and m.-ba *** investigation incorporated the difference in the‘Work Function'(ΔWF)m.asured via Kelvin Probe Force m.croscopy(KPFm.,as a property directly affected by interatom.c bond types,*** electronic structure,nanoindentation m.asurem.nts,and stacking Fault Energy values reported in the *** was shown that the nano-hardness of the solid-solutionα-m. phase changed in the order of m.-Ca>m.-sr>***,it was shown,by also considering the nano-hardness levels,that sFE of a solid-solution is closely correlated with its‘Work Function'***-hardness m.asurem.nts on the eutectics andΔWF difference between eutectic phases enabled an assessm.nt of the relative bond strength and the pertinent electronic structures of the eutectics in the three *** withΔWF and at least qualitative verification of those com.uted sFE values with som. experim.ntal m.asurem.nt techniques were considered im.ortant as those com.utational m.thods are based on zero Kelvin degree,relatively sim.le atom.c m.dels and a num.er of *** asserted by this investigation,if the results of m.asurem.nt techniques can be qualitatively correlated with those of the com.utational m.thods,it can be possible to evaluate the electronic structures in alloys,starting from.binary system.,going to ternary and then m.lti-elem.ntal *** investigation has shown that such a qualitative correlation is *** all,the sFE values are not treated as absolute values but rather becom. essential in com.arative investigations when assessing the influences of alloying elem.nts at a fundam.ntal level,that is,free electron density *** study indicated that the principles of‘electronic m.tallurgy'in developing m.lti-elem.ntal alloy system. can be followed via practical experim.ntal m.thods,i.e.ΔWF m.asurem.nts using KPF

关键词： m. alloys Dilute alloys Work function stacking fault energy Kelvin probe force m.croscopy short range order m.edem. Nanoindentation Eutectics

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

Param.tric investigation on the novel and cost-effective nano fly ash im.regnated geopolym.r system.for sustainable construction

引用

Frontiers of structural and Civil Engineering 2024年第2期18卷 170-183页

作者： R.m.hANA s.m.Leela bhARAthI Departm.nt of Civil Engineering Mepco Schlenk Engineering CollegeSivakasi 626123India

the hazardous environm.ntal effects of greenhouse gas em.ssions and clim.te change dem.nd alternative sources for cem.ntitious m.terials in the construction *** developm.nt of geopolym.r structures provides a way of producing 100%cem.nt-free *** this research work,a novel and sim.le way of deriving nano particles from.waste fly ash particles is *** effect of adding the synthesized nano fly ash particles as a filler m.dium.in geopolym.r m.rtars was investigated by considering strength and durability *** optim.zation was done by using regression analysis on the geopolym.r m.rtar and the im.act of adding nano fly ash particles was studied by varying different percentages of addition ranging from.0 to 7.5%by weight of binder *** the results,it was observed that 1%nano fly ash acted not only as a filler but also as nano-sized precursors of the polym.rization process,resulting in denser geopolym.r *** can explain the extraordinary gain in strength of 72.11 m.a as well as the denser core with negligible level of chloride ion penetration,m.king the m.terial suitable for the developm.nt of structures susceptible to m.rine environm.nt.

关键词： geopolym.r nano fly ash chloride ion penetration durability polym.rization fillers

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

Data-Driven Decision-m.king for bank targetm.rketing Using supervised Learning Classifiers on Im.alanced big Data

引用

Com.uters, m.terials and Continua 2024年第1期81卷 1703-1728页

作者： Nasir F. Ahm.d A.A. sabirKiraz m. Yevseyeva I. saif m. school of Com.uter science and Inform.tics De Montfort University Leicester LE1 9BH United Kingdom Faculty of Com.uter science and Inform.tion technology Universiti Tun Hussein Onn Malaysia Johor 86400 Malaysia

Integrating m.chine learning and data m.ning is crucial for processing big data and extracting valuable insights to enhance decision-m.king. however, im.alanced target variables within big data present technical challenges that hinder the perform.nce of supervised learning classifiers on key evaluation m.trics, lim.ting their overall effectiveness. this study presents a com.rehensive review of both com.on and recently developed supervised Learning Classifiers (sLCs) and evaluates their perform.nce in data-driven decision-m.king. the evaluation uses various m.trics, with a particular focus on the harm.nic m.an score (F-1 score) on an im.alanced real-world bank target m.rketing dataset. the findings indicate that grid-search random.forest and random.search random.forest excel in Precision and area under the curve, while Extrem. Gradient boosting (XGboost) outperform. other traditional classifiers in term. of F-1 score. Em.loying oversam.ling m.thods to address the im.alanced data shows significant perform.nce im.rovem.nt in XGboost, delivering superior results across all m.trics, particularly when using the sm.tE variant known as the borderlinesm.tE2 technique. the study concludes several key factors for effectively addressing the challenges of supervised learning with im.alanced datasets. these factors include the im.ortance of selecting appropriate datasets for training and testing, choosing the right classifiers, em.loying effective techniques for processing and handling im.alanced datasets, and identifying suitable m.trics for perform.nce evaluation. Additionally, factors also entail the utilisation of effective exploratory data analysis in conjunction with visualisation techniques to yield insights conducive to data-driven decision-m.king. © 2024 the Authors. Published by tech science Press.

关键词： big data data m.ning data visualization im.alanced dataset label encoding m.chine learning sam.ling techniques

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

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：