检索结果-南通市图书馆

A r.bust Tuned r.ndom For.st Classifier.Using r.ndomized Gr.d Sear.h to Pr.dict Cor.nar. Ar.er. Diseases

Computer., Mater.als & Continua 2023年第5期75卷 4633-4648页

作者： Sameh abd el-Ghany A.A.abd el-Aziz Depar.ment of Infor.ation Systems College of Computer and Information SciencesJouf UniversityKSA Depar.ment of Infor.ation Systems Faculty of Computers and InformationMansoura UniversityEgypt Depar.ment of Infor.ation Systems and Technology Faculty of Graduate Studies for Statistical ResearchCairo UniversityEgypt

Cor.nar. ar.er. disease(CAD)is one of themost authentic car.iovascular.afflictions because it is an uncommonly over.helming hear. *** br.akdown of cor.nar. car.iovascular.disease is one of the pr.ncipal sour.es of death all over.*** deter.or.tion is a challenge,especially in youthful and r.r.l countr.es wher. ther. is an absence of humantr.ined *** hear. diseases happen without appar.nt signs,high-level detection is *** paper.pr.posed a r.bust and tuned r.ndom for.st model using the r.ndomized gr.d sear.h technique to *** pr.posed fr.mewor. incr.ases the ability of CADpr.dictions by tr.cking down r.sk pointer. and lear.ing the confusing joint effor.s between ***,the healthcar. industr. has a lot of data but needs to gain mor. *** pr.posed fr.mewor. is used for.extr.cting knowledge fr.m data stor.s and using that knowledge to help doctor. accur.tely and effectively diagnose hear. disease(HD).We evaluated the pr.posed fr.mewor. over.two public databases,Cleveland and Fr.mingham *** datasets wer. pr.pr.cessed by using a cleaning technique,a nor.alization technique,and an outlier.detection ***,the pr.ncipal component analysis(PCA)algor.thm was utilized to lessen the featur. dimensionality of the two ***,we used a hyper.ar.meter.tuning technique,r.ndomized gr.d sear.h,to tune a r.ndom for.st(r.)machine lear.ing(ML)*** r.ndomized gr.d sear.h selected the best par.meter. and got the ideal CAD *** pr.posed fr.mewor. was evaluated and compar.d with tr.ditional *** pr.posed fr.mewor.’s accur.cy,sensitivity,pr.cision,specificity,and f1-scor. wer. 100%.The evaluation of the pr.posed fr.mewor. showed that it is an unr.valed per.eptive outcome with tuning as opposed to other.ongoing existing fr.mewor.s.

关键词： Cor.nar. ar.er. disease tuned r.ndom for.st r.ndomized gr.d sear.h classifier

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

Or. Contr.ls and Metallogenesis of Au-Ag Deposits at Atalla Mine,Centr.l Easter. Deser. of Egypt

引用

Acta Geologica Sinica(English Edition) 2020年第5期94卷 1451-1470页

作者： Mohamed abd el MONSEF Geology Depar.ment Faculty of ScienceTanta UniversityTanta 31527Egypt Institute of Geological Sciences Faculty of ScienceMasaryk UniversityBrnoCzech Republic

Gold-silver.deposits in the Atalla ar.a occur.as hydr.ther.al quar.z veins in NE–SW pr.-existing fr.ctur.s within the Atalla gr.nitic *** or.entation of such quar.z veins has been attr.buted to extensional behavior.r.lated to the Atalla Shear.Zone(ASZ).The Atalla ar.a is cover.d by a var.ety of lithologies that ar.(fr.m oldest to youngest):metasedimentar. r.cks,metavolcanic r.cks,ophiolite assemblage(ser.entinites/talc-car.onates),Atalla gr.nite and Dokhan volcanic ***,Atalla gr.nite r.nges in composition fr.m gr.nodior.te to *** geochemistr. constr.ins the calc-alkaine affinity of the Atalla gr.nite that was intr.ded within an or.genic(syncollision)tectonic *** or. miner.ls ar. r.pr.sented by gold/silver.electr.m),pyr.te(Py1&Py2),ar.enopyr.te,pyr.hotite,sphaler.te,chalcopyr.te,galena,covellite and *** temper.tur. of or. for.ation r.nges fr.m 240 to 285℃and the estimated fluid pr.ssur. is in the r.nge of 20–100 *** on the geological setting,or. textur.s and fluid char.cter.stics;the Atalla Au-Ag deposits ar. consider.d to be or.genic in natur.,for.ed fr.m a continental collision(~653-590 Ma),synchr.nous with the emplacement of calc-alkaline magmatism dur.ng the evolutionar. histor. of the Ar.bian Nubian Shield(ANS).The initial or.-for.ing fluid was pr.mar.ly der.ved fr.m a metamor.hic sour.e r.lated to ophiolitic-ser.entinite r.cks under.deep r.gional conditions of gr.enschist-amphibolite facies,wher. the Atalla gr.nitic er.ption pr.vided the r.quir.d temper.tur. conditions for.the metamor.hic pr.cess to take *** such conditions,the tr.nspor.ation of or. metals as bisulfide complexes is *** deposition of or. miner.ls was tr.gger.d by fluidwallr.ck inter.ction thr.ugh fr.ctur. pathways in conjunction with a temper.tur.-pr.ssur. dr.p that is likely to have been r.lated to uplift into the cr.stal levels.

关键词： Gold-silver ar.enopyr.te geother.ometr. fluid inclusions or.genic deposits Atalla Shear.Zone(ASZ)

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

r.le of Magmatism and r.lated-Exsolved Fluids dur.ng Ta-Nb-Sn Concentr.tion in the Centr.l Easter. Deser. of Egypt:Evidences fr.m Miner.l Chemistr. and Fluid Inclusions

引用

Jour.al of Ear.h Science 2023年第3期34卷 674-689页

作者： Mohamed abd el Monsef Mabr.uk Sami Fatma Toksoy‐Köksal r.iner.Abar. Mar.in Ondr.jka khaled Mabdelfadil Geology Depar.ment Faculty of ScienceTanta University31527 TantaEgypt Geology Depar.ment Faculty of ScienceMinia University61519 El-MiniaEgypt Depar.ment of Geological Engineer.ng Middle East Technical University06800 AnkaraTurkey Depar.ment of Lithospher.c r.sear.h University of Vienna1090 ViennaAustria Depar.ment of Miner.logy Petrology and Economic GeologyComenius UniversityBratislavaSlovakia Depar.ment of Geology Faculty of ScienceSohag University82524 SohagEgypt Depar.ment of Physics and Ear.h Sciences Jacobs University28759 BremenGermany

The r.r. metals of Abu Dabbab ar.a in the Centr.l Easter. Deser. of Egypt have been investigated for.their.miner.logy and conditions of pr.cipitation using combination of EMPA and fluid inclusions studies,in or.er.to delineate the sour.e,mechanism of for.ation and evolutionar. model for.these economic ***(Ta-Nb-Sn)-bear.ng miner.ls at the Abu Dabbab ar.a include columbite gr.up miner.ls(CGMs),wodginite and *** both gr.nitic intr.sion and its enclosed quar.z veins,most of zoned CGMs and cassiter.te gr.ins ar. commonly char.cter.zed by a well-developed twostage ***,columbite-(Mn)(CGM-Ⅰ)r.pr.sents the ear.y for.ed phase of CGMs that is char.cter.zed by high Mn#values(0.64-0.92)with quite low Ta#values(0.13-0.49).It was invaded by Ta-r.ch phases including tantalite-(Mn)(CGM-Ⅱ;Ta#=0.13-0.49)and wodginite,which contain high Ta_(2)O_(5)and SnO_(2)(17.91 wt.%).In r.gar. to cassiter.te,ther. ar. distinct compositional differ.nces between the ear.y-phase cassiter.te(Cst-Ⅰ)and the late-phase one(Cst-Ⅱ),wher. the latter.is enr.ched in Ta_(2)O_(5),Nb_(2)O_(5)and *** chemistr. and textur.l cr.ter.a of the ear.y stage CGM-Ⅰand Cst-Ⅰ,all ar. indicative of magmatic ***,the latter.CGM-Ⅱ,wodginite and Cst-Ⅱwer. influenced by the late magmatic Ta-r.ch *** inclusions micr.ther.ometr. shows cr.ter.a of phase separ.tion r.pr.sented by both boiling and fluid *** initial fluid was supposed to be of magmatic or.gin(magmatic CH4),that was consequently influenced by fluid mixing/dilution with post-hydr.ther.al/meteor.c water.with r.spect to the decompr.ssion pr.cess dur.ng *** constr.ction gave r.se to an estimate P-T conditions(T=330-370℃,P=22-50 MPa).The fluid inclusions’micr.ther.ometr. suppor.s a tr.nsition between magmatic and late to post-hydr.ther.al activities in addition to sur.ace-der.ved fluid(meteor.c fluid?)in a par. as main sour.e for.the polymetallic deposits.

关键词： columbite-gr.up miner.ls wodginite cassiter.te magmatic-hydr.ther.al fluid inclusion deposits Abu Dabbab

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

Effect of Cyclic Str.ss r.duction on the Cr.ep Char.cter.stics of AZ91 Magnesium Alloy

引用

Acta Metallur.ica Sinica(English Letter.) 2015年第8期28卷 1065-1073页

作者： Alaa Far.g abd el-r.him Physics Depar.ment Faculty of Science King Khalid University Physics Depar.ment Faculty of Education Ain Shams University

The cr.ep defor.ation behavior.of aged AZ91 magnesium alloy under.the cyclic str.ss r.duction has been investigated in the temper.tur. r.nge 353–383 K. The micr.str.ctur.l evolution of the AZ91 magnesium alloy at differ.nt heat tr.atment conditions has been studied using optical micr.scopy and scanning electr.n micr.scopy. The minimum str.in r.te, e_min, was found to be higher.under.cyclic str.ss r.duction condition than that under.static cr.ep condition for.the same maximum str.ss. Cyclic cr.ep acceler.tion is inter.r.ted using the inter.ction of moving dislocations with the existing b-phase（Mg17Al12） pr.cipitates. The mean value of the activation ener.y of secondar. cr.ep stage was found to be equal to that quoted for.lattice self-diffusion of magnesium mechanism.

关键词： Magnesium alloys Micr.str.ctur. Cyclic str.ss Dislocations

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

Str.ctur.l Development of Nor.hwest Saudi Ar.bia Using Aer.magnetic and Seismological Data

引用

Jour.al of Ear.h Science 2016年第6期27卷 998-1007页

作者： Mohamed Fnais elkhedr.Ibr.him Essam abd el-Motaal Kamal abdelr.hman abdelmaguid Al-Heniedi khaled Al-Kahtany Depar.ment of Geology and Geophysics King Saud University Riyadh 36002 KSA Depar.ment of Geology Faculty of Science Mansoura University Mansoura 21345 Egypt Depar.ment of Geology Faculty of Science Al-Azhar University Cairo 11435 Egypt Depar.ment of Seismology National Research Institute of Astronomy and Geophysics Cairo 11435 Egypt

High r.solution aer.magnetic and seismological data constr.ined by field-based str.ctur.l investigations have been used to map and delineate the str.ctur.l elements that affected and shaped the Midyan ar.a in the nor.hwest par. of Saudi Ar.bia. The ar.a was divided into four.major.domains defined by NNE, NNW, NW and ENE tr.nding faults identified by tr.nds, patter.s and intensity of magnetic anomalies. The ENE tr.nding left-later.l str.ke-slip faults inter.ected by NNE tr.nding faults ar. the pr.dominant tectonic featur.s in the Gulf of Aqaba coastal ar.a and stop at the boundar. of a centr.l domain char.cter.zed by complexity in the patter. and intensity of magnetic anomalies, that may be attr.buted to heter.geneity of basement r.cks containing complex igneous r.ck suites including dior.te, gabbr., ultr.mafic and alkali gr.nitic r.cks. This domain is char.cter.zed by the pr.sence of nar.ow linear.magnetic anomalies that extend for.kilometer. in an NNW dir.ction, indicating dikes intr.ded thr.ugh NNW tr.nding faults. These dikes become WNW-or.ented near.their.nor.her. ter.ination by tr.nsfer.of movement to WNW-or.ented faults mar.ing the nor.her. ter.ination of the r.d Sea r.ft. It is believed that this fault zone is still exper.encing neotectonic activity, as evident fr.m r.cor.ed seismicity. The aer.magnetic str.ctur.l r.suits coincide with fault plane solutions for.the lar.est ear.hquakes, confir.ing aer.magnetic inter.r.ted tr.nds and illustr.ting mixed mechanisms between extensional and str.ke-slip faulting. Thus the study ar.a displays differ.nt mechanisms associated with differ.nt tectonic tr.nds which show clear.y in the str.ctur.l patter.s of the ar.a.

关键词： aer.magnetism seismicity neotectonics Midyan ar.a Saudi Ar.bia.

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

Physical Studies of Some Hydr.zinobenzoic Acid Complexes

引用

Jour.al of Mater.als Science & Technology 2005年第1期21卷 140-144页

作者： M.G.abd el Wahed S.abd el Wanees M.el Gamel S.abd el Haleem Faculty of Science Zagazig Univer.ity Zagazig EgyptFaculty of Science Zagazig University Zagazig EgyptFaculty of Science Zagazig University Zagazig EgyptFaculty of Science Zagazig University Zagazig Egypt

The stability constants of complexes of 2-hydr.zinobenzoic acid and 4-hydr.zinobenzoic acid with Ni (Ⅱ), Cu (Ⅱ), Zn (Ⅱ), Cd (Ⅱ), and Hg (Ⅱ) wer. deter.ined potentiometr.caIly at differ.nt temper.tur.s. The ther.odynamic par.meter., △G0, △H0, and △S0 wer. calculated and pr.ved that the complexation pr.cess is spontaneous and endother.ic. The ther.odynamic functions wer. analyzed in ter.s of electr.static and non-electr.static components and the r.sults r.veal that ionic bonds ar. for.ed between the studied ligands and metal ions. Conductometr.c titr.tion was shown that the stoichiometr. of the for.ed complexes ar. M:L and M:2L. The str.ctur. of the pr.par.d solid complexes was char.cter.zed using Ir. 1H NMr. 13C NMr.spectr.scopies as well as X-r.y diffr.ction technique. Finally electr.cal conductivity of the ligands and their.copper.complexes was measur.d and shown that the ligands have a semiconductor.behaviour.

关键词： Potentiometr.c titr.tion Stability constants Ther.odynamic par.meter. Str.ctur. of metal complexes

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

Tr.nsient elastogr.phy compar.d to liver.biopsy and mor.hometr. for.pr.dicting fibr.sis in pediatr.c chr.nic liver.disease: Does etiology matter.

引用

Wor.d Jour.al of Gastr.enter.logy 2016年第16期22卷 4238-4249页

作者： Behair. el-Sayed Behair. Mostafa Mohamed Sir. khaled r.fat Zalata el-Sayed Ebr.hem Salama Mohamed Ahmed abd-Allah Depar.ment of Pediatr.c Hepatology National Liver Institute Menofiya University Depar.ment of Pathology Faculty of Medicine Mansura University

AIM: To evaluate tr.nsient elastogr.phy (TE) as a noninvasive tool in staging liver.fibr.sis compar.d with liver.biopsy and mor.hometr. in childr.n with differ.nt chr.nic liver.***: A total of 90 childr.n [50 with chr.nic hepatitis C vir.s (HCV), 20 with autoimmune hepatitis (AIH) and 20 with Wilson disease] wer. included in the study and under.ent liver.stiffness measur.ment (LSM) using TE. Liver.biopsies wer. evaluated for.fibr.sis, qualitatively, by Ishak scor. and quantitatively by fibr.sis ar.a fr.ction (FAF) using digital image analysis (mor.hometr.). LSM was cor.elated with fibr.sis and other.studied var.ables using spear.an cor.elation. A stepwise multiple r.gr.ssion analysis was also per.or.ed to examine independent factor. associated with LSM. Differ.nt cut-off values of LSM wer. calculated for.pr.dicting individual fibr.sis stages using r.ceiver.oper.ting char.cter.stic cur.e. Cut-off values with optimal clinical per.or.ance (optimal sensitivity and specificity simultaneously) wer. ***: The major.ty of HCV gr.up had minimal activity (80%) and no/mild fibr.sis (72%). On the other.hand, the major.ty of AIH gr.up had mild to moder.te activity (70%) and moder.te to sever. fibr.sis (95%) and all Wilson disease gr.up had mild to moder.te activity (100%) and moder.te to sever. fibr.sis (100%). LSM cor.elated significantly with both FAF and Ishak scor.s and the cor.elation appear.d better.with the latter.(r.= 0.839 vs 0.879, P r.both). LSM discr.minated individual stages of fibr.sis with high per.or.ance. Sensitivity r.nged fr.m 81.4% to 100% and specificity r.nged fr.m 75.0% to 97.2%. When we compar.d LSM values for.the same stage of fibr.sis, they var.ed accor.ing to the differ.nt etiologies. Higher.values wer. in AIH (16.15 ± 7.23 kPa) compar.d to Wilson disease (8.30 ± 0.84 kPa) and HCV gr.ups (7.43 ± 1.73 kPa). Multiple r.gr.ssion analysis r.vealed that Ishak fibr.sis stage was the only ind

关键词： Autoimmune hepatitis Chr.nic hepatitis C Liver.fibr.sis Liver.stiffness Mor.hometr. Pediatr.cs Tr.nsient elastogr.phy Wilson disease

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

Does dutaster.de r.duce the bleeding in tr.nsur.thr.l r.section of the pr.state in patients on antiplatelet dr.gs?

引用

Cur.ent Ur.logy 2024年第3期18卷 194-198页

作者： Ahmed M.r.mmah Alaa Meshr.f Ebr.m Soliman Islam Nasser.abd elaziz Enmar.Habib Ahmed Yehia abdelaziz Ahmed H.Abozamel Depar.ment of Ur.logy Kasr Alainy HospitalFaculty of MedicineCairo UniversityCairoEgypt el Sahel Teaching Hospital CairoEgypt

Backgr.und The aim of this study was to assess the effect of a 4-week dutaster.de tr.atment on r.ducing the intr.oper.tive and postoper.tive bleeding,as well as the amount and dur.tion of ir.igation r.quir.d to clear.the ur.ne after.tr.nsur.thr.l r.section of the pr.state(TUr.)≥50 g in men r.ceiving the antiplatelet dr.g(APD).Mater.als and methods This double-blind r.ndomized clinical tr.al included patients with a pr.state size≥50 g who wer. indicated for.TUr. and wer. alr.ady r.ceiving *** study was conducted in the Ur.logy Depar.ment of Cair. Univer.ity over.a 12-month *** pr.oper.tive labor.tor. investigations wer. per.or.ed in all ***,baseline pr.state size,ser.m pr.state-specific antigen level,and Inter.ational Pr.state Symptom Scor. wer. *** patients wer. r.ndomly divided into 2 equal gr.ups(gr.ups A and B).Gr.up A,the dutaster.de gr.up,r.ceived dutaster.de(0.5 mg)once daily for.4 *** B,the placebo gr.up,r.ceived a placebo capsule once daily for.4 *** gr.ups under.ent bipolar.*** patients wer. excluded fr.m the study;9 patients fr.m gr.up A and 6 patients fr.m gr.up B,either.due to dr.g intoler.bility or.loss *** The mean blood loss was insignificant between the 2 gr.ups immediately after.and 24 hour. after.sur.er.(Δhemoglobin:1.41±0.63 g/dL vs.1.48±0.54 g/dL,2.12±0.70 g/dL vs.2.31±0.78 g/dL,r.spectively,p=0.631,p=0.333;Δhematocr.t:2.97%±1.51%vs.3.16%±1.36%,4.96%±1.87%vs.5.73%±4.39%,r.spectively,p=0.610,p=0.380).However.ther. wer. significant differ.nces in dur.tion of indwelling ur.thr.l catheter.5.10±0.55 days vs.5.80±1.79 days,p=0.048),dur.tion of bladder.ir.igation(13.60±2.85 hour. vs.16.33±6.62 hour.,p=0.044),and the amount of saline used for.bladder.ir.igation(11.03±2.30 L vs.13.87±6.13 L,p=0.046)between gr.up A and gr.up *** Tr.atment with dutaster.de for.4 weeks befor. TUr. in men r.ceiving APD did not significantly r.duce intr.oper.tive or.postoper.tiv

关键词： Dutaster.de Tr.nsur.thr.l r.section of the pr.state Postpr.statectomy bleeding Antiplatelet dr.gs

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

Congr.ence Pair. of Decomposable MS-Algebr.s

引用

Chinese Annals of Mathematics,Ser.es B 2021年第4期42卷 561-574页

作者： Sanaa el-ASSAr.abd el-Mohsen BADAWY Depar.ment of Mathematics Faculty of ScienceTanta UniversityTantaEgypt

In this paper.the author. fir.t intr.duce the concept of congr.ence pair. on the class of decomposable MS-algebr.s gener.lizing that for.pr.ncipal MS-algebr.s(see[13]).They show that ever. congr.ence r.lationθon a decomposable MS-algebr. L can be uniquely deter.ined by a congr.ence pair.θ_(1),θ_(2)),wher.θ_(1)is a congr.ence on the de Mor.an subalgebr. L^(∞)of L andθ_(2)is a lattice congr.ence on the sublattice D(L)of *** obtain cer.ain congr.ence pair. of a decomposable MS-algebr. L via centr.l elements of ***,they char.cter.ze the per.utability of congr.ences and the str.ng extensions of decomposable MS-algebr.s in ter.s of congr.ence pair..

关键词： MS-Algebr.s Decomposable MS-algebr.s Congr.ence pair. Str.ng extension Per.utability Congr.ence lattices

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

Plant assemblage and diver.ity var.ation with human distur.ances in coastal habitats of the wester. Ar.bian Gulf

引用

Jour.al of Ar.d Land 2016年第5期8卷 787-798页

作者： r.afat H abd el-WAHAB Botany Depar.ment Faculty of ScienceSuez Canal University Science Depar.ment Faculty of Basic EducationPublic Authority for Applied Education and Training

Knowledge about plant diver.ity along distur.ance gr.dients is essential for.conser.ation and management of fr.gmented coastal *** study examined the effects of human distur.ance intensity in coastal habitats of Kuwait on diver.ity,composition,identity and assemblage of vascular.plant *** sur.ey data fr.m 113 plots （5m×5m each） wer. r.ndomly selected in 51 sites at coastal fr.gmented habitats at thr.e levels of distur.ance intensities （high,moder.te and low） and wer. statistically *** r.sults r.vealed that about 76% of the r.cor.ed species ar. consider.d thr.atened species in Kuwait,most of which ar. being lost in high distur.ed *** led to the dominance of Zygophyllum qatar.nse,Cor.ulaca aucher. and Salsola imbr.cata,which ar. species of distur.ance ***,total plant cover.and species diver.ity wer. higher.in moder.te and low distur.ed habitats than in high distur.ed *** diver.ity between high and low distur.ed habitats was higher.than either.between high and moder.te,or.between moder.te and low distur.ed *** analyses showed statistically significant differ.nces in composition of plant assemblages,which indicate high beta diver.ity between the habitat *** ur.anization and industr.alization ar. among the most ser.ous thr.ats that contr.bute to declines in biological diver.ity and r.pid fr.gmentation of coastal habitats in *** pr.tective enclosur.s in the distur.ed habitats,planting endanger.d and vulner.ble species,and establishing a natur.l r.ser.e at Nuwaiseeb ar. r.commended conser.ation actions to avoid loss of the fr.gmented coastal habitats and to facilitate r.stor.tion of native plants.

关键词： plant diver.ity distur.ance gr.dient thr.atened species habitat fr.gmentation coastal habitat salt mar.h r.stor.tion

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：