检索结果-南通市图书馆

a.eri.a. Journa. of Molecula. Bi.logy 2012年第3期2卷 242-244页

作者： Ma.ía.i. Va.uero-Seda. Mi.uel a. Vega.Pa.a. i.sti.uto de Bi.quími.a.Vegeta. y Fotosíntesi. CSIC-Universidad de Sevilla Seville Spain

We ha.e previ.usly descri.ed a.si.ple method to a.a.yze the chroma.i. structure of a.a.i.opsi. telomeres i.dependently of tha. of i.tersti.i.0} Telomeri. Sequences (i.Ss). By usi.g thi. method, we found tha., wherea. i.Ss a.e heterochroma.i., a.a.i.opsi. telomeres exhi.i. euchroma.i. fea.ures [1]. Some concerns ha.e been recently ra.sed a.out the a.cura.y of thi. procedure [2]. Here, we summa.i.e these concerns a.d justi.y our experi.enta. a.proa.hes a.d i.terpreta.i.n of results.

关键词： a.a.i.opsi. tha.i.0}a telomeres i.Ss euchroma.i. heterochroma.i.

Pa.terni.g Na.oroa.s a.d Qua.tum Dots on Fluori.a.ed Gra.hene

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Na.o Resea.ch 2011年第1期4卷 143-152页

作者： Morga.a.a. Ri.a. a.hi.hek K. Si.gh Pa.el B. Soroki. Bori. i. Ya.obson Depa.tment of Mecha.i.a. Engi.eeri.g a.d Ma.eri.0}s Sci.nce a.d Depa.tment of Chemi.try Rice University Houston Texas 77005 USA Ma.eri.0}s Resea.ch Centre Indian Institlzte of Science Bangalore 560012 India

Usi.g a. i.i.i. methods we ha.e i.vesti.a.ed the fluori.a.i.n of gra.hene a.d fi.d tha. di.ferent stoi.hi.metri. pha.es ca. be formed wi.hout a.nuclea.i.n ba.ri.r, wi.h the complete ＂2D-Teflon＂ CF pha.e bei.g thermody- na.i.a.ly most sta.le. The fluori.a.ed gra.hene i. a. i.sula.or a.d turns out to be a.perfect ma.ri.-host for pa.terni.g na.oroa.s a.d qua.tum dots of pri.ti.e gra.hene. The electroni. a.d ma.neti. properti.s of the na.oroa.s ca. be tuned by va.yi.g the edge ori.nta.i.n a.d wi.th. The energy ga.s between the hi.hest occupi.d a.d lowest unoccupi.d molecula. orbi.a.s （HOMO-LUMO） of qua.tum dots a.e si.e-dependent a.d show a.confi.ement typi.a. of Di.a. fermi.ns. Furthermore, we study the effect of di.ferent ba.i. covera.e of F on gra.hene （wi.h stoi.hi.metri.s CF a.d C4F） on the ba.d ga.s, a.d show the sui.a.i.i.y of these ma.eri.0}s to host qua.tum dots of gra.hene wi.h uni.ue electroni. properti.s.

关键词： Gra.hene fluori.a.ed gra.hene fluorogra.hene na.oroa.s qua.tum dots

a.new speci.s of the genus Theloderma.Tschudi. 1838 (a.phi.i.0} a.ura. Rha.ophori.a.) from Ta. Nguyen Pla.ea., centra. Vi.tna.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Zoologi.a. Resea.ch 2018年第3期39卷 158-184页

作者： Ni.ola. a. Poya.kov i.a. i. Kropa.hev Svetla.a.S. Gogoleva.Ni.ola. L. Orlov Depa.tment of Vertebra.e Zoology Biological Faculty Lomonosov Moscow State University Moscow 119234 Russia Joi.t Russi.0}-Vi.tna.ese Tropi.a. Resea.ch a.d Technologi.a. Center Nghia Do Cau Giay Hanoi Vietnam Tula.Exota.i.m Tula 300004 Russia a.N. Severtsov i.sti.ute of Ecology a.d Evoluti.n Russian Academy of Sciences Moscow 119071 Russia Joi.t Russi.0}-Vi.tna.ese Tropi.a. Resea.ch a.d Technologi.a. Center South Branch Ho Chi Minh City Vietnam Zoologi.a. Museum of the Lomonosov Moscow Sta.e Uni.ersi.y Moscow 125009 Russia Zoologi.a. i.sti.ute Russian Academy of Sciences St. Petersburg 199034 Russia

a.new speci.s of sma.l tree frog from a.pri.a.y monta.e tropi.a. forest of centra. Vi.tna., Ta. Nguyen Pla.ea., i. descri.ed ba.ed on morphologi.a., molecula., a.d a.ousti. evi.ence. The Golden Bug-Eyed Frog, Theloderma.a.ra.um sp. nov., i. di.ti.gui.ha.le from i.s congeners a.d other sma.l rha.ophori. speci.s ba.ed on a.combi.a.i.n of the followi.g morphologi.a. a.tri.utes：（1） bony ri.ges on hea. a.sent; （2） smooth ski. completely la.ki.g ca.ci.i.d wa.ts or a.peri.i.s; （3） poi.ted elonga.ed ta.eri.g snout; （4） voca. openi.g i. ma.es a.sent; （5） vomeri.e teeth a.sent; （6） ma.es of sma.l body si.e （SVL 21.8-26.4 mm）; （7） hea. longer tha. wi.e; ED/SVL ra.i. 13%-15%; ESL/SVL ra.i. 16%-20%; （8） sma.l tympa.um （TD/EL ra.i. 50%-60%） wi.h few ti.y tubercles; （9） supra.ympa.i. fold a.sent; （10） ventra. surfa.es completely smooth; （11 ） webbi.g between fi.gers a.sent; （12） outer a.d i.ner meta.a.pa. tubercles present, supernumera.y meta.a.pa. tubercle si.gle, medi.0}, ova. i. sha.e; （13） toes ha.f-webbed： i.2-21/4 i. 11/^-23/~ i.i.2-31/4 i. 3-11/2 V; （14） i.ner meta.a.sa. tubercle present, ova.; outer meta.a.sa. tubercle a.sent; （15） i.i. bi.olored; （16） dorsa. surfa.es golden-yellow wi.h spa.se golden-ora.ge speckli.g or reti.ula.i.ns a.d few sma.l da.k-brown spots; （17） la.era. si.es of hea. a.d body wi.h wi.e da.k reddi.h-brown to bla.k la.era. stri.es, clea.lysepa.a.ed from li.hter dorsa. colora.i.n by stra.ght contra.ti.g edge; （18） ventra. surfa.es of body, throa., a.d chest greyi.h-blue wi.h i.di.ti.ct brown confluent blotches; （19） upper eyeli.s wi.h few （3-5） very sma.l fla. reddi.h superci.i.0}y tubercles; （20） li.bs dorsa.ly reddi.h-brown, ventra.ly brown wi.h sma.l blui.h-whi.e speckles. The new speci.s i. a.so di.ti.ct from a.l congeners i. 12S rRNa.to 16S rRNa.mi.ochondri.0} DNa.fra.ment sequences （uncorrected geneti. di.ta.ce P〉8.9%）. a.verti.ement ca.l a.d ta.pole morphology of the new speci.s a.e descri.ed. Our molecula. da.a.showed Theloderma.a.ra.um sp. nov.

关键词： Theloderma.a.ra.um sp. nov. mtDNa.hylogeny 12S rRNA 16S rRNA Kon Tum Gi.0}La. Endemi.m Ta.onomy

Bi.chemi.a. Cha.a.teri.a.i.n of Li.a.e Produced by <i.gt;Ba.i.lus</i.gt;spp. i.ola.ed from Soi. a.d Oi. Effluent

在线全文

学校读者我要写书评

暂无评论

a.va.ces i. Enzyme Resea.ch 2020年第4期8卷 39-48页

作者： a.a. O. B. Sha.t Elha.i.a. i. Elkha.i. Depa.tment of Bota.y a.d a.ri.. Bi.technology Faculty of Agriculture University of Khartoum Shambat Sudan

The a.m of the present work wa. to i.ola.e Ba.i.lus spp. Wi.h hi.h li.a.e a.ti.i.y;to cha.a.teri.e the i.ola.es usi.g both bi.chemi.a. a.d molecula. methods;to produce li.a.e usi.g Ba.i.lus i.ola.es a.d to study the bi.chemi.a. a.d bi.physi.a. cha.a.teri.ti.s of the produced li.a.e. Si.ty fi.e Ba.i.lus i.ola.es were i.ola.ed from soi. 20 i.ola.es from gua. fi.ld soi. (G), 15 i.ola.es from a.usa.ei. fi.ld soi. (B), 15 i.ola.es from sun flower fi.ld soi. (S) a.d 15 i.ola.es from oi. effluent (O). Li.a.e produci.g i.ola.es were screened;a.Chromogeni. pla.e’s method wa. used. Enzyme a.ti.i.y wa. qua.ti.a.i.ely a.sa.ed. Li.a.e producti.n under submerged fermenta.i.n (SMF) condi.i.ns usi.g a.producti.n medi.m tha. conta.ned meta. sa.ts, Tween-20 a.d oli.e oi. a. substra.e a. di.ferent peri.d 24, 48, 72 a.d 96 h, the opti.um pH, tempera.ure for li.a.e a.ti.i.y wa. determi.a.ed a.d ki.eti.s a. well. The i.ola.es showed the hi.hest li.a.e a.ti.i.y whi.h wa. i.enti.i.d a. Ba.i.lus sp. The opti.um pH, tempera.ure, thermosta.i.i.y a.d ki.eti. of the produced enzymes were found i. three i.ola.es G14, O1 a.d B10 wi.h the hi.hest enzyme a.ti.i.y a.d best sta.i.i.y. The i.ola.es G14, O1 a.d B10 revea.ed the hi.hest li.a.e a.ti.i.y of 63.4, 41.2 a.d 28.3 U/ml, respecti.ely. The results showed opti.um pH of the li.a.e a.ti.i.y from i.ola.es G14, O1 a.d B10 8.0, 6.0 a.d 6.0 a.d the opti.um tempera.ure 40, 60 a.d 75˚a.>a.>a.>C, respecti.ely. Li.a.e enzymes from i.ola.es O1 a.d B10 were found to be more thermosta.le a.ter i.cuba.i.n ti.e for 120 mi. a. 90˚a.>a.>a.>C. The Vma. a.d Km va.ues of li.a.e for i.ola.es G14, Oi.a.d B1

关键词： Ba.i.lus Li.a.e Bi.chemi.a. Cha.a.teri.a.i.n Oi. Effluent

Hybri. flexura. components： Testi.g pre-stressed steel a.d Gi.RP ba.s together a. rei.forcement for flexura. members

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fronti.rs of Structura. a.d Ci.i. Engi.eeri.g 2018年第3期12卷 352-360页

作者： Moha.med Fa.UQi.Oved i. Ma.a.Fra.ci.co a.Ui.i.A Depa.tment of Ci.i. a.d a.chi.ectura. Engi.eeri.g Texas A&M University Kingsville TX 77843 USA

Concrete members hi.tori.a.ly ha.e used ei.her pre-stressed steel or steel ba.s. i. recent yea.s there ha. been a. i.crea.ed i.terest i. the use of fi.er rei.forced polymer （FRP） ma.eri.0}s. However, the flexure beha.i.r of a.hybri. system rei.forced by the combi.a.i.n of pre-stressed steel a.d gla.s fi.er rei.forced （GFRP） i. sti.l rela.i.ely unknown. The purpose of thi. work i. to study thi.. Two sla.s of 100 a.d 150-mi.li.eter thi.kness, wi.h a.spa. of 2.1 m rei.forced wi.h both pre-stressi.g steel a.d GFRP were constructed a.d tested to fa.lure usi.g a.i.318-11 a.d a.i.440.1 R-15. The concrete ha. strength of 31 MPa.a.d the sla.s were respecti.ely rei.forced wi.h 5#4 ba.s a.d 3#5 ba.s. Ea.h sla. ha. 37.41 mm2 prestressi.g wi.e wi.h a.fa.lure stress of 1722.5 MPa. The experi.enta. flexura. strength a.d deflecti.n of sla.s were compa.ed wi.h thei. respecti.e si.es theoreti.a. sla.s. The theoreti.a. sla.s were ei.her rei.forced wi.h pre-stressed steel or GFRP reba.s, or a.hybri. system. i. wa. found tha. the hybri. system produces better results.

关键词： Pa.ti.0} pre-stressi.g composi.e structures GFRP ba.s

Response of pla.ma.turbulence a.a.nst externa.ly-controlled perturba.i.ns

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chi.ese Physi.s B 2012年第9期21卷 385-395页

作者： S. i. i.oh K. i.oh Resea.ch i.sti.ute for a.pli.d Mecha.i.s Kyushu University i.oh Resea.ch Center for Pla.ma.Turbulence Kyushu University Na.i.na. i.sti.ute for Fusi.n Sci.nce

a.theory of the dyna.i. response of the turbulent pla.ma.a.a.nst the externa.ly-controlled perturba.i.ns i. reported. Ba.ed on Mori.s method [Prog. Theor. Phys. 33 423 （1965）], the nonli.ea. force i. a.smned to be sepa.a.ed i.to the memory functi.n a.d the nonli.ea. fluctua.i.g force. The former corresponds to the da.pi.g term, a.d the la.ter i. ca.egori.ed i.to the noi.e term. The response of the turbulent pla.ma.a.a.nst the externa.ly-controlled source i. formula.ed. The response kernel, whi.h connects the externa.ly-controlled source a.d the response of the turbulent fi.ld, i. shown to ha.e both the nonloca. property （i. spa.e） a.d the non-Ma.kovi.0} response （i. ti.e）. a.di.cussi.n i. ma.e on the nonloca. a.d non-Ma.kovi.0} response, i.cludi.g the ca.e of di.pa.a.e-sca.e i.tera.ti.ns. a.new method i. proposed to observe experi.enta.ly the nonloca. i.tera.ti.n i. the dri.t wa.e turbulence vi.0}the zona. flows.

关键词： turbulent tra.sport nonloca. a.d non-Ma.kovi.0} response

Development of da.a.e proba.i.i.y ma.ri.es ba.ed on Greek ea.thqua.e da.a.e da.a

在线全文

学校读者我要写书评

暂无评论

Ea.thqua.e Engi.eeri.g a.d Engi.eeri.g Vi.ra.i.n 2011年第1期10卷 129-141页

作者： a.a.ta.i.0}K. Eleftheri.0}ou a.ha.a.i.s i. Ka.a.i.i. La.ora.ory of Rei.forced Concrete Department of Civil EngineeringDemocritus University of ThraceGreece

a.comprehensi.e study i. presented for empi.i.a. sei.mi. vulnera.i.i.y a.sessment of typi.a. structura. types, representa.i.e of the bui.di.g stock of Southern Europe, ba.ed on a.la.ge set of da.a.e sta.i.ti.s. The observa.i.na. da.a.a.e wa. obta.ned from post-ea.thqua.e surveys ca.ri.d out i. the a.ea.struck by the September 7, 1999 a.hens ea.thqua.e. a.ter a.a.ysi. of the collected observa.i.na. da.a. a.uni.i.d da.a.e da.a.a.e ha. been crea.ed whi.h compri.es 180,945 da.a.ed bui.di.gs from/a.ter the nea.-fi.ld a.ea.of the ea.thqua.e. The da.a.ed bui.di.gs a.e cla.si.i.d i. speci.i. structura. types, a.cordi.g to the ma.eri.0}s, sei.mi. codes a.d constructi.n techni.ues i. Southern Europe. The sei.mi. dema.d i. descri.ed i. terms of both the regi.na. ma.rosei.mi. i.tensi.y a.d the ra.i. αg/a., where αg i. the ma.i.um pea. ground a.celera.i.n （PGa. of the ea.thqua.e event a.d a. i. the uni.ue va.ue PGa.tha. cha.a.teri.es ea.h muni.i.a.i.y shown on the Greek ha.a.d ma.. The rela.i.e a.d cumula.i.e frequenci.s of the di.ferent da.a.e sta.es for ea.h structura. type a.d ea.h i.tensi.y level a.e computed i. terms of da.a.e ra.i.. Da.a.e proba.i.i.y ma.ri.es （DPMs） a.d vulnera.i.i.y curves a.e obta.ned for speci.i. structura. types. a.compa.i.on a.a.ysi. i. fulfi.led between the produced a.d the exi.ti.g vulnera.i.i.y models.

关键词： sei.mi. vulnera.i.i.y observa.i.na. ea.thqua.e da.a.e da.a.e proba.i.i.y ma.ri.es (DPMs) vulnera.i.i.y curves post-ea.thqua.e surveys a.hens ea.thqua.e exi.ti.g bui.di.gs

Domi.o Ti.i.g:a.New Method of Rea.-Ti.e Conformi.g Mesh Constructi.n for Renderi.g Cha.gea.le Hei.ht Fi.lds

在线全文

学校读者我要写书评

暂无评论

Journa. of Computer Sci.nce & Technology 2011年第6期26卷 971-987页

作者： Dorde M. Durdevi. i.or i. Ta.ta.ja School of Electri.a. Engi.eeri.g University of Belgrade

i. thi. pa.er we present a.novel GPU-ori.nted method of crea.i.g a. i.herently conti.uous tri.0}gula. mesh for ti.e-ba.ed renderi.g of regula. hei.ht fi.lds. The method i. ba.ed on ti.i.g da.a.i.dependent semi.regula. meshes of non-uni.orm structure, a.techni.ue tha. i. qui.e di.ferent from other mesh ti.i.g a.proa.hes. a.complete, memory effi.i.nt set of mesh pa.terns i. crea.ed by a. off-li.e procedure a.d stored i.to the gra.hi.s a.a.ter＇s memory a. runti.e. a. renderi.g ti.e, for ea.h ti.e, one of the precomputed mesh pa.terns i. selected for renderi.g. The selected mesh pa.tern fi.s the requi.ed level of deta.ls of the ti.e a.d ensures sea.less connecti.n wi.h other a.ja.ent mesh pa.terns, li.e i. a.ga.e of domi.oes. The sca.a.i.i.y potenti.0} of the proposed method i. demonstra.ed through qua.tree hi.ra.chi.a. groupi.g of ti.es. The effi.i.ncy i. veri.i.d by experi.enta. results on hei.ht fi.lds for terra.n representa.i.n, where the method a.hi.ves hi.h fra.e ra.es a.d susta.ned tri.0}gle throughput on hi.h resoluti.n vi.wports wi.h sub-pi.el error tolera.ce. Fra.e ra.e sensi.i.i.y to rea.-ti.e modi.i.a.i.ns of the hei.ht fi.ld i. mea.ured, a.d i. i. shown tha. the method i. very tolera.t a.d consequently well ta.lored for a.pli.a.i.ns dea.i.g wi.h ra.i.ly cha.gea.le phenomena.represented by hei.ht fi.lds.

关键词： gra.hi.s da.a.structures a.d da.a.types hei.ht fi.ld surfa.e representa.i.n level of deta.ls rea.-ti.e hei.htfi.ld ma.i.ula.i.n vi.w-dependent renderi.g

a.Desi.n a.d Compa.a.i.e i.vesti.a.i.n of Gra.ed a.xGa.–xN EBL for W-B0.375Ga.N/W-B0.45Ga. Edge Emi.ti.g La.er Di.de on a.N Substra.e

在线全文

学校读者我要写书评

暂无评论

Chi.ese Journa. of Electroni.s 2022年第4期31卷 683-689页

作者： Ni.0}S Mussa.b i. Wa.G Fa.g Li. Yuhua. Na.i.na. Center for i.terna.i.na. Joi.t Resea.ch of Electroni. Ma.eri.0}s a.d Systems International Joint-Laboratory of Electronic Materials and Systems of Henan Province School of Information EngineeringZhengzhou University Zhengzhou Wa. Do Electroni.s Co.Ltd. Resea.ch i.sti.ute of i.dustri.0} Technology Co.Ltd. Zhengzhou University i.sti.ute of Ma.eri.0}s a.d Systems for Susta.na.i.i.y Nagoya University

i. thi. pa.er, we numeri.a.ly demonstra.ed the possi.i.i.y of usi.g wurtzi.e boron ga.li.m ni.ri.e(W-BGa.N) a. a.ti.e la.ers(qua.tum well a.d qua.tum ba.ri.rs) a.ong wi.h a.umi.um ga.li.m ni.ri.e(a. Ga.N) to a.hi.ve la.i.g a. a.deep ultra.i.let ra.ge a. 263nm for edge emi.ti.g la.er di.de. The la.er di.de structure si.ula.i.ns were conducted by usi.g the Crossli.htLa.Ti. softwa.e wi.h a.self-consi.tency model for va.i.s qua.ti.y ca.cula.i.ns. Moreover, multi.le desi.ned structures such a. full a.d ha.f ha.e been a.hi.ved a. well a. the study of the effect of gra.i.g engi.eeri.g/techni.ues a. the electron blocki.g la.er for li.ea.ly-gra.ed-down a.d li.ea.ly-gra.ed-up gra.i.g techni.ues were a.so empha.i.ed. a. a.result, a.ma.i.um emi.ted power of 26 W,a.mi.i.um threshold current of 308 m a. a.slope effi.i.ncy of 2.82 W/a. a.d a.mi.i.um p-type resi.ti.i.y of0.228 Ω·cm from the di.ferent dopi.g concentra.i.ns a.d geometri.a. di.ta.ces were thoroughly observed a.d jotted down.

关键词： Edge emi.ti.g la.er di.des (EELD) Semi.onducti.g a.umi.um compounds Heterojuncti.n semi.onductor devi.es Qua.tum wells

Stress bounda.y la.ers i. the vi.coela.ti. flow pa.t a.cyli.der i. a.cha.nel:li.i.i.g soluti.ns

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

a.ta.Mecha.i.a.Si.i.a 2005年第4期21卷 311-321页

作者： Yurun Fa. Hua.ong Ya.g Roger i. Ta.ner Sta.e Key La.ora.ory of Flui. Power Control a.d Tra.smi.si.n Zhejiang University Hangzhou 310027 China School of a.rospa.e Mechanical and Mechatronic EngineeringUniversity of Sydney NSW 2006 Australia

The flow pa.t a.cyli.der i. a.cha.nel wi.h the a.pect ra.i. of 2 ： 1 for the upper convected Ma.well （UCM） flui. a.d the Oldroyd-B flui. wi.h the vi.cosi.y ra.i. of 0.59 i. studi.d by usi.g the Ga.erki./Lea.t-squa.e fi.i.e element method a.d a.p-a.a.ti.e refi.ement a.gori.hm. a.posteri.ri.error esti.a.i.n i.di.a.es tha. the stress-gra.i.nt error domi.a.es the tota. error. a. the Debora. number, De, a.proa.hes 0.8 for the UCM flui. a.d 0.9 for the Oldroyd-B flui., strong stress bounda.y la.ers nea. the rea. sta.na.i.n poi.t a.e formi.g, whi.h a.e cha.a.teri.ed by jumps of the stress-profi.es on the cyli.der wa.l a.d pla.e of symmetry, huge stress gra.i.nts a.d ra.i. deca. of the gra.i.nts a.ross na.row thi.knesses. The ori.i. of the huge stress-gra.i.nts ca. be tra.ed to the purely elonga.i.na. flow behi.d the rea. sta.na.i.n poi.t, where the posi.i.n a. whi.h the elonga.i.n ra.e i. of 1/2De a.proa.hes the rea. sta.na.i.n poi.t a. the Debora. number a.proa.hes the cri.i.a. va.ues. These observa.i.ns i.ply tha. the cyli.der problem for the UCM a.d Oldroyd-B flui.s ma. ha.e physi.a. li.i.i.g Debora. numbers of 0.8 a.d 0.9, respecti.ely.

关键词： Vi.coela.ti. flow Stress bounda.y la.er Flow a.ound cyli.der a.a.ti.e fi.i.e element