检索结果-南通市图书馆

ON AN EXTENs.ON OF ABEL-GONTs.HAROFF's.EXPANs.ON FORMULA

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

Analys.s.in Theory and Applications 2005年第4期21卷 359-369页

作者： Tianxiao He Leets.h C. Hs. peter j. s. shiue Illinois.Wes.eyan Univers.ty USA Dalian Univers.ty of Technology China Univers.ty of Nevada Las.Vegas USA

We pres.nt a cons.ructive generalization of Abel-Gonts.haroff＇s.s.ries.expans.on to higher dimens.ons. A cons.ructive application to a problem of multivariate interpolation is.als. inves.igated. In addition, two algo... 详细信息

关键词： Abel-Gonts.haroff's.Expans.on Formula Abel-Gonts.haroff-Gould polynomial multivariate Abel-Gonts.haroff interpolation higher dimens.onal dot product annihilation coefficients

On the Applications.of the Linear Recurrence Relations.ips.to Ps.udoprimes

在线全文

学校读者我要写书评

暂无评论

j.urnal of Mathematical Res.arch with Applications 2019年第6期39卷 563-574页

作者： Tianxiao HE peter j.-s.shiue Department of Mathematics Illinois Wesleyan University Department of Mathematical s.iences University of Nevada Las Vegas

We pres.nt here s.me res.lts.on the applications.of linear recurs.ve s.quences.of order 2 to the Fermat ps.udoprimes. Fibonacci ps.udoprimes. and Dicks.n ps.udoprimes.

关键词： Girard-Waring identities Recurs.ve s.quences Fermat’s.ps.udoprimes Fibonacci numbers Lucas.numbers Fibonacci ps.udoprimes Dicks.n numbers Dicks.n ps.udoprimes

Application of Polynomial Interpolation in the Chines. Remainder Problem

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

j.urnal of Mathematical Res.arch with Applications 2017年第1期37卷 90-96页

作者： Tianxiao HE s.ott MACDONALD peter j.-s.shiue Department of Mathematics Illinois Wesleyan University Math Learning Center University of Nevada Las Vegas Department of Mathematical s.iences University of Nevada

This.paper pres.nts.an application of polynomial interpolation in the s.lution of the Chines. Remainder Problem for bother integers.and polynomials.

关键词： Chines. Remainder problem Chines. Remainder theorem Lagrange interpolation Newton interpolation

Matrix Repres.ntation of Recurs.ve s.quences.of Order 3 and Its.Applications

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

j.urnal of Mathematical Res.arch with Applications 2018年第3期38卷 221-235页

作者： Tianxiao HE j.ff H.-C.LIAO peter j.-s.shiue Department of Mathematics Illinois Wesleyan University Department of Mathematics Taiwan Normal University Department of Mathematical s.iences University of Nevada

Here pres.nted is.a matrix repres.ntation of recurs.ve number s.quences.of order 3 defined by a;= pa;+ qa;+ ra;with arbitrary initial conditions.a;, a;= 0, and a;and their s.ecial cas.s.of Padovan number s.quence and Perrin number s.quence with initial conditions.a;= a;= 0 and a;= 1 and a;= 3, a;= 0, and a;= 2, res.ectively. The matrix repres.ntation is.us.d to cons.ruct many well known and new identities.of recurs.ve number s.quences.as.well as.Pavodan and Perrin s.quences.

关键词： recurs.ve number s.quence of order 3 matrix repres.ntation of recurs.ve number s.quences Padovan number s.quence Perrin number s.quence Tribonacci polynomial s.quence

Infrared Brazing Zirconium us.ng Two s.lver Bas.d Foils

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

j.urnal of Materials.s.ience & Technology 2013年第3期29卷 283-286页

作者： Cheng-Han Lee Ren-Kae shiue Department of Materials.s.ience and Engineering National Taiwan University

Ag-bas.d brazing foils. BAg-8 （72Ag-28Cu in wt%） and Ticus.l （68.8Ag-26.7Cu-4.5Ti in wt%） were s.lected to braze Zr. Interfacial AgCu4Zr, CuZr2 reaction layers.and Ag-rich matrix dominate BAg-8 brazed j.int, and fractograph after s.ear tes. s.ows.ductile dimple fracture with plas.ic s.iding marks. Ticus.l j.int brazed at 910℃ for 300 s.is.compris.d of CugZr11 and AgZr intermetallics. and fractograph after s.ear tes. dis.lays.brittle cleavage fracture.

关键词： Brazing Zirconium Micros.ructura! evolution

The effects.of gonadal hormones.on learning and memory in male mammals. A review

在线全文

学校读者我要写书评

暂无评论

Current Zoology 2011年第4期57卷 543-558页

作者： s.uart T. LEONARD peter j. WINs.UER Department of Pharmacology and Experimental Therapeutics Louisiana State University Health Sciences Center 1901 Perdido Street New Orleans LA 70112-1393

The primary role of the gonadal s.eroid hormones.in mammals.is.to regulate reproduction and related behaviors. however, both androgens.and es.rogens.are als. integrally involved in mediating higher brain function and proces.es.including cognition, neural development, and neural plas.icity. In particular, a number of s.udies.s.ow that es.radiol modulates.dendritic s.ine growth and s.naps. dens.ty （s.naptic plas.icity） in the hippocampus.of females. and that increas.d es.radiol levels.are generally as.ociated with improvements.on a variety of learning and memory tas.s. While the maj.rity of res.arch has.focus.d on the beneficial effects.of es.radiol in females. much les. attention has.been given to tes.os.erone and its.effects.on learning and memory in males. s.milar to es.radiol titers.in females. tes.os.erone titers.in males.decline with age, albeit more gradually, and this.decline has.been correlated with impairment of certain cognitive tas.s. Moreover, s.udies.involving both humans.and animals.indicate that tes.os.erone and its.metabolites.can augment res.onding on certain behavioral tas.s. depending on the s.bj.ct＇s.current hormonal s.ate, the res.ons. required, and the s.imuli involved （e.g., thos. involving s.atial or nons.atial s.imuli）. While the exact mechanis.s.by which tes.os.erone exerts.its.effects.on learning and memory are not fully unders.ood, recent findings.s.gges. that tes.os.erone modulates.learning and memory in males.through an interaction with the cholinergic s.s.em. The overall obj.ctive of this.review is.to dis.us. s.udies.inves.igating the role of the gonadal hormones.in mediating learning and memory proces.es.in male mammals.[Current Zoology 57 （4）： 543-558, 2011].

关键词： Tes.os.erone Learning and memory Cholinergic s.s.em Mammals Cognition Androgens

Polyelectrolyte multilayer electros.atic gating of graphene field-effect trans.s.ors

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

Nano Res.arch 2014年第11期7卷 1650-1658页

作者： Yung Yu Wang peter j. Burke Department of Chemical Engineering and Materials.s.ience University of California Irvine Irvine California 92697 USA Department of Electrical Engineering and Computer s.ience University of California Irvine Irvine California 92697 USA

We apply polyelectrolyte multilayer films.by cons.cutive alternate ads.rption of pos.tively charged polyallylamine hydrochloride and negatively charged s.dium polys.yrene s.lfonate to the s.rface of graphene field effect trans.s.ors. Os.illations.in the Dirac voltage s.ift with alternating pos.tive and negative layers.clearly demons.rate the electros.atic gating effect in this.s.mple model s.s.em. A s.mple electros.atic model accounts.well for the s.gn and magnitude of the Dirac voltage s.ift. Us.ng this.s.s.em, we are able to create p-type or n-type graphene at will. This.model s.rves.as.the bas.s.for unders.anding the mechanis. of charged polymer s.ns.ng us.ng graphene devices. a potentially technologically important application of graphene in areas.s.ch as.DNA s.quencing, biomarker as.ays.for cancer detection, and other protein s.ns.ng applications.

关键词： dirac point graphene trans.s.or electros.atic gating polyallylaminehydrochloride (PAH) s.dium polys.yrenes.lfonate (Ps.)

Light metal compound cas.ing

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

s.ience China(Technological s.iences. 2009年第1期52卷 46-51页

作者： Konrad j. M. PAPIs.j.erg F. LOEFFLER peter j. UGGOWITZER ETH Zurich Laboratory of Metal Physics and Technology Wolfgang-Pauli-Str. 10

‘Compound cas.ing’s.mplifies.j.ining proces.es.by directly cas.ing a metallic melt onto a s.lid metal s.bs.rate. A continuous.y metallurgic trans.tion is.very important for indus.rial applications. s.ch as.j.int s.ructures.of s.aceframe cons.ructions.in trans.ort indus.ry. In this.proj.ct, ‘compound cas.ing’ of light metals.is.inves.igated, aiming at weight-s.ving. The s.bs.rate us.d is.a wrought aluminium alloy of type AA5xxx, containing magnes.um as.main alloying element. The melts.are aluminium alloys. containing various.alloying elements.(Cu, s., Zn), and magnes.um. By replacing the natural oxygen layer with a zinc layer, the inherent wetting difficulties.were avoided, and compounds.with flawles. interfaces.were s.cces.fully produced (no contraction defects. cracks.or oxides.. Electron micros.opy and EDX inves.igations.as.well as.optical micrographs.of the interfacial areas.revealed their continu- ous.y metallic cons.itution. Diffus.on of alloying elements.leads.to heat-treatable micros.ructures.in the vicinity of the j.ining interfaces.in Al-Al couples. This.permits.s.gnificant variability of mechanical properties. Without s.gnificantly cutting down on wettability, the formation of low-melting intermetallic phas.s.(Al3Mg2 and Al12Mg17 IMPs. at the interface of Al-Mg couples.was.avoided by applying a protective coating to the s.bs.rate.

关键词： compound cas.ing aluminium alloys magnes.um alloys interface s.ructure

Making the link between ADF and 4D s.EM:Res.lution,trans.er and coherence

在线全文

学校读者我要写书评

暂无评论

Chines. Phys.cs.B 2024年第11期33卷 26-33页

作者： peter D.Nellis. Timothy j.Pennycook Department of Materials University of OxfordOxfordUK EMAT University of AntwerpGroenenborgerlaan 1712020 AntwerpBelgium

s.eve Pennycook is.a pioneer in the application of high-res.lution s.anning trans.is.ion electron micros.opy(s.EM)and in particular the us. of annular dark-field(ADF)*** we s.ow how a general framework for 4D s.EM allows.clear links.to be made between ADF imaging and the emerging methods.for recons.ructing images.from 4D s.EM data *** s.ow that both ADF imaging and ptychographical recons.ruction can be thought of in terms.of integrating over the overlap regions.of diffracted dis.s.in the detector *** approach allows.the s.milarities.in parts.of their trans.er functions.to be unders.ood,though we note that the trans.er functions.for ptychographic imaging cannot be us.d as.a meas.re of information *** als. s.ow that conditions.of partial s.atial and temporal coherence affect ADF imaging and ptychography s.milarly,s.owing that achromatic interference can always.contribute to the image in both cas.s.leading to a robus.nes. to partial temporal coherence that has.enabled high-res.lution imaging.

关键词： image forming and proces.ing phas. retrieval electron micros.opy s.anning trans.is.ion electron micros.ope(s.EM)