检索结果-南通市图书馆

e.timating.costs of salvag.0}log.ing.for larg.0}scale.burne. fore.t lands: A case.study on Turke.'s Me.ite.rane.n coast

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Fore.try Re.e.rch 2021年第5期32卷 1899-1909页

作者： Ne.e.g.lci Faculty of Fore.try Kahramanmaras Sutcu Imam University46100 KahramanmarasTurkey

Diffe.e.t fore.t fire. causing.diffe.e.t de.re.s of e.fe.ts occur in fire.se.sitive.fore.ts due.to various re.sons such as climate.*** as we.l as harmful aspe.ts of fore.t fire. are.a multi-disciplinary re.e.rch *** information syste.s(g.S)and re.ote.se.sing.RS)me.hods offe. a numbe. of be.e.its for re.e.rche.s and ope.ators in the.fie.d of fore.t fire.*** pre.e.t study analyse. timbe. pricing.base. on fore.t contractor de.ands of post-salvag.0}log.ing.*** e.fe.t of timbe. obtaine. from compartme.t units on produce.s’pricing.policy was *** fore.t fire.are.(2500 ha)locate. in Antalya in Turke. was se.e.te. as the.main study *** parame.e.s(aspe.t,slope.and slope.position),stand type.(diame.e. class and crown closure.,and burn se.e.ity we.e.analyze. tog.0}he. using.g.S and R software.packag.0}.A multi-line.r re.re.sion mode.(R^(2)=0.752)de.onstrate. that factors that had the.most impact on pricing.we.e.slope.position,aspe.t,stand ag.0}crown closure.and burn *** mode. can be.use. to e.timate.salvag.0}log.ing.price. in Calabrian pine.Pinus brutia Te..)stands with similar *** administrators and contractors may re.dily addre.s the.unit price.of timbe. by e.timating.approximate.costs in a g.ve. fore.t are. for which the. are.g.ing.to *** will he.p re.uce.ope.ational planning.time. of harve.ting.proce.ure. in burne. stands.

关键词： Timbe. e.traction Fore.t fire. Stumpag.0}sale Cost e.timation Sustainability Crown fire

在线全文

学校读者我要写书评

暂无评论

Advance. in Manufacturing 2016年第4期4卷 287-295页

作者： g. Buffa M. De.Lisi e. Sciortino L. Fratini e.artme.t of Che.ical Management Computer and Mechanical Engineering University of Palermo Viale delle Scienze 90128 Palermo Italy

Dissimilar stir we.ding.（FSW） lap joints we.e.produce. by friction out of Ti6A14V titanium alloy and AA2024 aluminum alloy she.ts. The.joints, we.de. with varying.tool rotation and fe.d rate. we.e.studie. by ana- lyzing.the.maximum she.r stre.g.h, Vicke.s microhardne.s and optical obse.vations. A de.icate. nume.ical mode., able.to take.into account the.pre.e.ce.of the.two diffe.e.t alloys, was use. to hig.lig.t the.e.fe.ts of the.proce.s parame.e.s on te.pe.ature.distribution, strain distribution, and mate.ial flow. The.combine. analysis of e.pe.ime.tal me.sure.e.ts and nume.ical pre.ictions allowe. e.plaining.the.e.fe.ts of tool rotation and fe.d rate.on the.mate.ial flow. It was found that tool rotation had a larg.0} impact on the.joint e.fe.tive.e.s with re.pe.t to fe.d rate. A compe.ition be.we.n mate.ial mixing.and he.t input occurs with incre.sing.tool rotation, re.ulting.in hig.e. joint stre.g.h whe. lowe. value. of tool rotation are.use..

关键词： Finite.e.e.e.t me.hod (Fe.) Ti6A14V AA2024 Friction stir we.ding.(FSW) Lap joint

Hie.archical close. form solutions for plate. be.t by localize. transve.se.loading.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Zhe.iang.Unive.sity-Scie.ce.A(Applie. Physics & e.g.ne.ring. 2007年第7期8卷 1026-1037页

作者： CARRe.A e. g.UNTA g. BRISCHe.TO S. Ae.onautical and Space.De.artme.t Politecnico di Torino c.so Duca degli Abruzzi 24 10129 Torino Italy

3D and 2D close. form plate.mode.s are.he.e.applie. to static analysis of simply supporte. square.isotropic plate.. 2D the.rie. are.hie.archically classifie. on the.basis of the.accuracy of the.displace.e.ts and stre.se. obtaine. by comparison to the.3D e.act re.ults that could be.assume. by the.re.de. as be.chmark for furthe. analyse.. Atte.tion is mainly paid on localize. loading.conditions, that is, pie.e.ise.constant load. Also bi-sinusoidal and uniformly distribute. loading. are.take. into account. All of those.config.rations are.conside.e. in orde. to inve.tig.te.the.be.avior of the.2D mode.s in the.case.of continu- ous/uncontinuous, ce.tric or off-ce.tric loading.conditions. The.ratio be.we.n the.side.le.g.h a and the.plate.thickne.s h has be.n assume. as analysis parame.e.. Hig.e. orde. 2D mode.s yie.d accurate.re.ults for any conside.e. load condition in the.case.of mode.ate.y thick plate., a/h=10. In the.case.of thick plate., a/h=5, and continuous/uncontinuous ce.tric loading.conditions hig. accuracy is also obtaine.. For the.conside.e. off-ce.tric load condition and thick plate. g.od re.ults are.provide. for some.output quantitie.. A be.te. solution could be.achie.e. by simply incre.sing.the.polynomial approximation orde. of the.axiomatic 2D displace.e.t fie.d.

关键词： e.act 3D mode. Hie.archical 2D mode.s Principle.of Virtual Displace.e.ts (PVD) Localize. loading Simply supporte. square.isotropic plate

The.Fourie. space.re.tricte. Hartre.-Fock me.hod for the.e.e.tronic structure.calculation of line.r poly(te.rafluoroe.hyle.e.

在线全文

学校读者我要写书评

暂无评论

Scie.ce.China Che.istry 2014年第10期57卷 1355-1362页

作者： FRIPIAT Jose.h g. HARRIS Frank e. Laboratoire.de.Chimie.Théorique Unité de chimie physique théorique et structurale University of NamurRue de Bruxelles De.artme.t of Physics University of Utah Quantum The.ry Proje.t University of Florida

Building.on the.pione.ring.work of Je.n-marie Andre.and working.in the.laboratory he.founde., the.authors have.de.e.ope. a code.calle. FT-1D to make.Hartre.-Fock e.e.tronic structure.computations for ste.e.re.ular polyme.s using.e.ald-type.con- ve.g.0}ce.acce.e.ation me.hods. That code.also take. full advantag.0}of all line.g.oup symme.rie. to calculate.only the.minimal se. of two-e.e.tron inte.rals and to optimize.the.computation of the.Fock matrix. The.pre.e.t communication re.orts a be.ch- mark study of the.FT-1D code.using.polyte.rafluoroe.hyle.e.（PTFe. as a te.t case. Our re.ults not only confirm the.alg.rith- mic corre.tne.s of the.code.throug. ag.e.me.t with othe. studie. whe.e.the. are.applicable. but also show that the.use.of con- ve.g.0}ce.acce.e.ation e.able. accurate.re.ults to be.obtaine. in situations whe.e.othe. wide.y-use. code. （e.g., PLH and Crys- tal） fail. It is also found that full atte.tion to the.line.g.oup symme.ry of the.PTFe.polyme. le.ds to an incre.se.of be.we.n one.and two orde.s of mag.itude.in the.spe.d of computation. The.ne. code.can the.e.ore.be.vie.e. as e.te.ding.the.rang.0}of e.e.tronic-structure.computations for ste.e.re.ular polyme.s be.ond the.pre.e.t scope.of the.succe.sful and valuable.code.Crystal.

关键词： poly(te.rafluoroe.hyle.e. band structure Fourie.-space.Hartre.-Fock lattice.sum e.aid

A hig. pe.formance.g.s–liquid two-phase.flow me.e. base. on g.mma-ray atte.uation and scatte.ing

在线全文

学校读者我要写书评

暂无评论

Nucle.r Scie.ce.and Te.hnique. 2017年第11期28卷 271-279页

作者： g. H. Roshani e. Naze.i e.e.trical e.g.ne.ring.De.artme.t Kermanshah University of Technology Kermanshah Iran Nucle.r Scie.ce.and Te.hnolog. Re.e.rch Institute TehranIran Radiation Application De.artme.t Shahid Beheshti University Tehran Iran

The.ability to pre.ise.y e.timate.the.void fraction of multiphase.flow in a pipe.is ve.y important in the.pe.role.m industry. In this pape., an approach base. on our pre.ious works is propose. for pre.icting.the.void fraction inde.e.de.t of flow re.ime.and liquid phase.de.sity chang.0} in g.s–liquid two-phase.flows. Imple.e.te. te.hnique.is a combination of dual modality de.sitome.ry and multi-be.m g.mma-ray atte.uation te.hnique.. The.de.e.tion syste. is comprise. of a sing.e.e.e.g. fan be.m,two transmission de.e.tors, and one.scatte.ing.de.e.tor. In this work, artificial ne.ral ne.work(ANN) was also imple.e.te. to pre.ict the.void fraction pe.ce.tag.0}inde.e.de.t of the.flow re.ime.and liquid phase.de.sity chang.0}. Re.iste.e. counts in thre. de.e.tors and void fraction pe.ce.tag.0}we.e.utilize. as the.inputs and output of ANN, re.pe.tive.y. By applying.the.propose. me.hodolog., the.void fraction was e.timate. with a me.n re.ative.e.ror of le.s than just 1.2480%.

关键词： g.mma-ray Transmission and scatte.ing Artificial ne.ral ne.work De.sity inde.e.de.t Flow re.ime inde.e.de.t Void fraction

Pote.tial of te.mite.base. biomass pre.tre.tme.t strate.ie. for use.in bioe.hanol production

在线全文

学校读者我要写书评

暂无评论

Inse.t Scie.ce 2010年第3期17卷 166-174页

作者： Michae. e. Scharf Drion g. Boucias e.tomolog. and Ne.atolog. De.artme.t University of Florida Gainesville Florida USA

Whe. conside.ing.the.curre.t state.of the.biore.ine.y industry, it is re.dily appare.t that industrial ce.lulose.and he.ice.lulose.dig.0}tion proce.se. are.re.ative.y advance., whe.e.s e.zymatic pre.tre.tme.t strate.ie. for biomass de.ig.ification and ce.lulose.solubilization are.not we.l de.e.ope.. The.ne.d for e.ficie.t biomass pre.tre.tme.t strate.ie. pre.e.ts a sig.ificant opportunity for re.e.rche.s studying.lig.oce.lulose.dig.0}tion in te.mite. and othe. inse.ts. With an e.phasis on industrial biomass pre.tre.tme.t, this re.ie. provide. an ove.vie. of：（i） industrial biore.ining.ope.ations （fe.dstocks, proce.sing. and e.onomics）; （ii） re.e.t finding. from te.mite.re.e.rch that have.re.e.le. candidate.e.zyme.; and （iii） re.e.rch ne.ds and opportunitie. for conside.ation by e.tomolog.sts working.in this are.. With re.pe.t to re.e.rch finding., re.e.tly ide.tifie. candidate.lig.ase. （laccase., catalase., pe.oxidase., e.te.ase.）, othe. pote.tially important de.oxification e.zyme. （cytochrome.P450, supe.oxide.dismutase., and phe.olic acid e.te.ase. （carboxyle.te.ase.） that may assist in he.ice.lulose.solubilization are.ove.vie.e.. Re.arding.re.e.rch ne.ds and opportunitie., se.e.al approache. for ide.tification of candidate.pre.tre.tme.t e.zyme. from upstre.m, symbiont-fre. g.t re.ions are.also de.cribe..

关键词： bioe.e.g. bioe.hanol biore.ining Isopte.a lig.oce.lulose re.e.able.e.e.g.

Salic Horizons in Soils of the.USA

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pe.osphe.e 2013年第5期23卷 600-608页

作者： J. g. BOCKHe.M A. e. HARTe.INK De.artme.t of Soil Scie.ce University of Wisconsin

The.taxonomic hie.archy and nationwide.distribution of soils with a salic horizon we.e.studie. using.the.USA Natural Re.ource. Conse.vation Se.vice.Soil Surve. g.0}g.aphic （SSURg.） Database.to provide.a more.holistic vie. of the.role.of soil-forming.factors in pe.og.0}e.is than from isolate. case.studie.. Soils with a salic horizon occupie. an are. of 11 000 km2, i.e., 0.1% of land are. in the.contig.ous USA. The.e.soils occur narrowly in thre. g.e.t g.oups （Aquisalids, Haplosalids and Halaque.ts）, 11 subg.oups, and 97 soil se.ie.. Soils with a salic horizon commonly had a me.ic （50% of soil se.ie.） or the.mic （19%） soil-te.pe.ature.class, an aquic （89%） soil-moisture.class, a mixe. mine.al class （79%）, a calcare.us （52%） re.ction class, a supe.aztive.（59%） cation e.chang.0}activity class, and a fine.（24% of soil se.ie.）, fine.loamy （24% of soil se.ie.）, or fine.silty （19% of soil se.ie.） particle.size.class. Soils with a salic horizon we.e.conce.trate. in the.Basin and Rang.0}Province.of we.te.n USA. The.ke. pe.og.0}ic proce.se. le.ding.to the.de.e.opme.t of salic horizons we.e.salinization, g.e.zation, and calcification, with some.e.ide.ce.for arg.lluviation and silicification.

关键词： saline.soils soil classification solonchak

SWITCHINg.AND Se.Ue.CINg.AVAILABLe.THe.APIe. SO AS TO MAXIMIZe.A PATIe.T＇S e.Pe.Te. TOTAL LIFe.IMe

在线全文

学校读者我要写书评

暂无评论

Inte.national Journal of Biomathe.atics 2012年第4期5卷 113-125页

作者： john e. g.ULIONIS De.artme.t of Statistics and Insurance.Scie.ce. Unive.sity of Pirae.s 80 Karaoli a Dimitriou Stre.t 18534 Pirae.s Greece

This pape. has focuse. on applying.mathe.atical te.hnique. to addre.s fundame.tal que.tion in the.apy planning.whe. to switch, and how to se.ue.ce.the.apie.. We.conside. switching.and se.ue.cing.available.the.apie. so as to maximize.a patie.t＇s e.pe.te. total life.ime. We.assume.knowle.g.0}only about the.life.ime.distributions induce. by the.the.apie.. We.discuss a spe.ialization of this mode. that is tailore. to a fre.ue.tly re.ccurring.type.of manag.0}e.t proble., whe.e.our g.al is to de.e.mine.the.be.t timing.for te.ting.and tre.tme.t de.isions for patie.ts with ische.ic he.rt dise.se. Typically, de.isions are.made.with an ove.all, g.al of maximizing.the.patie.t＇s e.pe.te. life.ime.or quality-adjuste. life.ime.

关键词： e.pe.te. total life.ime mainte.ance ische.ic he.rt dise.se stochasticorde.ing.re.ationships statistical distributions.

Targ.0}ing.the.mitochondrial pe.me.bility transition pore.in traumatic ce.tral ne.vous syste. injury

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ne.ral Re.e.e.ation Re.e.rch 2018年第8期13卷 1338-1341页

作者： Joe.e. Spring.0} Pare.hkumar Prajapati Patrick g. Sullivan Spinal Lord and Brain Injury Re.e.rch Ce.te. Department of Neuroscience University of Kentucky Lexington KY USA

The.mitochondrion se.ve. many functions in the.ce.tral ne.vous syste. （CNS） and othe. org.ns be.ond the.we.l-re.og.ize. role.of ade.osine.triphosphate.（ATP） production. This include. calcium-de.e.de.t ce.l sig.aling. re.ulation of g.0}e.e.pre.sion, synthe.is and re.e.se.of cytotoxic re.ctive.oxyg.0} spe.ie., and the.re.e.se.of cytochrome.c and othe. apoptotic ce.l de.th factors. Traumatic injury to the.CNS re.ults in a rapid and, in some.case., sustaine. loss of mitochondrial function. One.conse.ue.ce.of compromise. mitochondrial function is induction of the.mitochondrial pe.me.bility transition （mPT） state.due.to formation of the.cyclosporine.A se.sitive.pe.me.bility transition pore.（mPTP）. In this mini-re.ie., we.summarize.e.ide.ce.supporting.the.involve.e.t of the.mPTP as a me.iator of mitochondrial and ce.lular de.ise.following.CNS traumatic injury and discuss the.be.e.icial e.fe.ts and limitations of the.curre.t e.- pe.ime.tal strate.ie. targ.0}ing.the.mPTP.

关键词： mitochondrial pe.me.bility transition cyclophilin-D cyclosporine.A NIM811 spinal cord injury traumatic brain injury se.ondary injury functional re.ove.y