检索结果-南通市图书馆

Per.or.anc. and var.ability patter.s in wood pr.per.ies and gr.wth tr.its in the par.nts, F1 and F2 gener.tion hybr.d c.ones of Populus deltoides

在线全文

学校读者我要写书评

暂无评论

Jour.al of For.str. r.sear.0} 2011年第3期22卷 379-385页

作者： P. K. Pande r. c. Dhiman Wood Anatomy Disc.pline Botany Division Forest Research Institute Dehradun (India)-248006 WIMc. Seedlings Ltd. Rudrapur Udhamsingh Nagar Uttarakhand India

The per.or.anc. and var.ability patter.s in the wood element’s dimensions, spec.fic.gr.vity and gr.wth par.meter. namely r.met height and GBH wer. evaluated in 16 c.ones of par.nts, F1 and F2 hybr.ds of Populus deltoides Bar.r. ex Mar.h. r.met r.dial var.ations wer. nonsignific.nt, while inter.c.onal var.ations due to inter.c.ion of c.one/r.plic.tion wer. signific.nt for.all the wood tr.its exc.pt vessel element length. Inter.c.onal var.ations wer. signific.nt only for.fiber.length and fiber.wall thic.ness. Fiber.length and spec.fic.gr.vity wer. signific.ntly higher.in female, while wall thic.ness and vessel element length wer. higher.in male c.ones. Female par.nts （G48 and S7c.） showed higher.fiber.length and spec.fic.gr.vity than of the male par.nt （G3）, while vessel diameter.and wall thic.ness wer. higher.in male par. ent （G3）. Ther. is not muc. differ.nc. in fiber.length and vessel element’s dimensions among the par.nts, F1 and F2 gener.tion hybr.d c.ones. Spec.fic.gr.vity did not showed any tr.nd for.par.nts, F1 and F2 gener.tions. Gener.lly female c.ones showed higher.gr.wth r.te. Br.ad sense her.tability for.wood tr.its r.nged fr.m 0.143 （fiber.length） to 0.505 （fiber.wall thic.ness）, while for.gr.wth tr.its it was 0.374 （GBH） and 0.418 （height）. Genetic.gain for.all the wood and gr.wth tr.its was positive for.most of the wood tr.its. The highly diver.ent male c.one （78） and female c.ones （S7c., G48, W/A 49） in number.of c.mbinations c.uld be used for.developing new hybr.ds of desir.d wood tr.its to develop new c.ones.

关键词： Fiber.length spec.fic.gr.vity vessel element length and wall thic.ness wood var.ations

Annotated expr.ssed sequenc. tags and xenobiotic.detoxific.tion in the aphid Myzus per.ic.e （Sulzer.

在线全文

学校读者我要写书评

暂无评论

Insec. Sc.enc. 2007年第1期14卷 29-45页

作者： c.c. FIGUEr.A N. Pr.NIEr.LETEr.E c. r.SPE F. SEPOLVEDA E. FUENTES-contreras B. SABATEr.MUNOZ J.-c. SIMON D. TAGU Instituto de Ec.logia y Evoluc.on Facultad de Ciencias Universidad Austral de Chile Valdivia Chile INr. r.nnes UMR 1099 BiO3P INRA - Agrocampus BP 35327 35653 Le Rheucedex France and Depar.amento de Pr.duc.ion Agr.c.la Facultad de Ciencias Agrarias Universidad de Talca Talca Chile

Aphids （Hemipter.： Aphididae） ar. phytophagous insec.s that ar. impor.ant agr.c.ltur.l pests. The enor.ous negative ec.nomic.impac.s c.used by aphids wor.dwide ar. well known, and ar. mostly due to their.high multiplic.tion r.te and the tr.nsmission of phytopathogenic.vir.ses. Aphid management str.tegies mainly involve c.emic.l tr.atments whic. ar. pollutants and ar. inc.easingly ineffic.ent, sinc. aphids have developed multiple insec.ic.de-r.sistant mec.anisms. Among the most ec.nomic.lly impor.ant spec.es is the gr.en peac. aptfid Myzus per.ic.e Sulzer.（Aphididae： Mac.osiphini）, whic. is able to c.lonize a wide r.nge of host plants belonging to many differ.nt families, and tr.nsmits numer.us plant vir.ses. Bec.use of its lar.e pr.valenc., M. per.ic.e has been the tar.et of massive insec.ic.de tr.atments; c.nsequently, it has evolved sever.l insec.ic.de-r.sistant mec.anisms. In this wor., a c.llec.ion of expr.ssed genes fr.m M. per.ic.e is pr.sented in or.er.to identify putative genes involved in xenobiotic.detoxific.tion. After.c.NA c.oning and sequenc.ng, 959 expr.ssed sequenc. tags （EST） wer. annotated. Most sequenc.s matc.ed known genes c.r.esponded to metabolism pr.teins （26%）, r.bosomal pr.teins （ 23 % ） and str.c.ur.l pr.teins （8%）. Among them, sever.l sequenc.s c.r.esponded to pr.teins putatively involved in sensing, degr.dation or.detoxific.tion of plant xenobiotic.pr.duc.s.

关键词： aphid detoxific.tion EST genomic. insec.-plant r.lationships Myzusper.ic.e

c.field c.smology with Var.able G in the Flat Fr.edmann-r.ber.son-Walker. Model

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

c.inese Physic. Letter. 2007年第11期24卷 3290-3292页

作者： r.j Bali r. S.Tikekar Depar.ment of Mathematic. University of Rajasthan Jaipur 302004India Depar.ment of Mathematic. Sardar Patel University Vallabh Vidyanagar India

The c.field c.smologic.l model based on the Hoyle-Nar.ikar.theor. with var.able gr.vitational c.nstant G is investigated. To obtain the deter.inistic.value of c.dc.dt we pr.sent c.r.ain c.nstant values for.integr.tion c.nstants. The c.eation field is pr.por.ional to time. G and p （density） dec.ease with time and the univer.e r.pr.sents an expanding univer.e. The c.eation field inc.eases as time inc.eases. We find c.√1/2πf t wher. f〉0,Thus c.1 when f=1/2π〉0.

关键词： Univer.e c.smology c.smologic.l models

Non-Intr.sive Elastic.Quer. Pr.c.ssing in the c.oud

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

Jour.al of c.mputer.Sc.enc. & Tec.nology 2013年第6期28卷 932-947页

作者： Tic.ana L. c.elho da Silva Mar.o A. Nasc.mento Jose Antonio F. de Mac.do Flavio r. c. Sousa Javam c. Mac.ado Depar.ment of c.mputing Federal University of Ceara Fortaleza Ceara Brazil Depar.ment of c.mputing Sc.enc. University of Alberta Edmonton Alberta T6G 2E8 Canada

c.oud c.mputing is a ver. pr.mising par.digm of ser.ic.-or.ented c.mputing. One major.benefit of c.oud c.mputing is its elastic.ty, i.e., the system＇s c.pac.ty to pr.vide and r.move r.sour.0}s automatic.lly at r.ntime. For.that, it is essential to design and implement an effic.ent and effec.ive tec.nique that takes full advantage of the system＇s potential flexibility. This paper.pr.sents a non-intr.sive appr.ac. that monitor. the per.or.anc. of r.lational database management systems in a c.oud infr.str.c.ur., and automatic.lly makes dec.sions to maximize the effic.enc. of the pr.vider.s envir.nment while still satisfying agr.ed upon ＂ser.ic. level agr.ements＂（SLAs）. Our.exper.ments c.nduc.ed on Amazon＇s c.oud infr.str.c.ur., c.nfir. that our.tec.nique is c.pable of automatic.lly and dynamic.lly adjusting the system＇s alloc.ted r.sour.0}s obser.ing the SLA.

关键词： elastic.ty quer. pr.c.ssing non-intr.sive ser.ic. level agr.ement

Diatom assemblages and quantitative r.c.nstr.c.ion for.paleosalinity fr.m a sediment c.r. of c.enc.o Lake,souther. Tibet

在线全文

学校读者我要写书评

暂无评论

Sc.enc. c.ina Ear.h Sc.enc.s 2004年第6期47卷 522-528页

作者： c. Kamenik r.Sc.midt Institute of Limnology Austrian Academy of Sciences A-5310 Mondsee AustriaInstitute of Limnology Austrian Academy of Sciences A-5310 Mondsee Austria

c.mbining with the diatom-based c.nduc.ivity tr.nsfer.func.ion fr.m Qing-hai-Xizang (Tibetan) Plateau lakes, the lake salinity for.the past 300 year. was quantitatively r.c.nstr.c.ed based on the analysis of diatom assemblages fr.m a sediment c.r. in c.enc.o Lake, souther. Tibet. The distinc. negative r.lationship between infer.ed c.nduc.ivity and r.c.r.ed lakelevels in r.c.nt year. suggests that the lake salinity c.n r.flec. the fluc.uations of effec.ive moistur. of c.imate in lake ar.a. The salinity infer.ed fr.m diatoms r.veals sever.l major.hydr.logic.l episodes. An obvious desalination of lake water.oc.ur.ed dur.ng the last c.ld inter.al of the Little Ic. Age (about 1845–1885 AD), indic.ting a c.ld and moist c.imate. The lake salinity pr.sented a r.pid inc.ease tr.nd sinc. the middle 1960s, with a peak value and high amplitude of salinity var.ability in the whole past 300 year.. The low effec.ive moistur. infer.ed fr.m the lake salinity may have c.ntr.buted to the enhanc.d evapor.tion by the c.ntinuous inc.ease of temper.tur. in r.c.nt year.. Keywor.s diatoms - c.nduc.ivity or.salinity - quantitative r.c.nstr.c.ion - c.enc.o Lake

关键词： diatoms, c.nduc.ivity or salinity, quantitative r.c.nstr.c.ion, c.enc.o Lake.

Analysis of the Statistic.l Behaviour.of Daily Maximumand Monthly r.infall Data at New DelhiDur.ng Monsoon Per.od

在线全文

学校读者我要写书评

暂无评论

Advanc.s in Atmospher.c.Sc.enc.s 2002年第3期19卷 425-432页

作者： c. V. Singh r. S. Adhikar. H. P. Gar. c.ntr. of Ener.y Studies Indian Institute of Technology Hauz Khas 110 016 New Delhi India

A statistic.l analysis of monthly mean and daily maximum r.infall data at New Delhi dur.ng the mon-soon (June-September. per.od 1940-1980 is pr.sented. It has been obser.ed that a good c.r.elation exists between the monthly and daily maximum r.infall. A linear.r.gr.ssion analysis of the data is found to be sig nific.nt for.all the four.months. Some key statistic.l par.meter. like the mean values of c.effic.ent of Var. ability (c.), r.lative Var.ability (r.) and Per.0}ntage Inter.nnual Var.ability (PIV) have been studied and found to be at var.anc.. However. their.c.r.esponding r.tios between mean daily maximum and mean monthly r.infall ar. signific.ntly lower.

关键词： Monsoon r.infall c.effic.ent of var.ability r.lative var.ability Per.0}ntage inter.nnual var.a-bility

PEc.D OF HAr. AND ELASTIc.Bc. c.ATINGS

在线全文

学校读者我要写书评

暂无评论

Ac.a Metallur.ic. Sinic.(English Letter.) 2002年第1期15卷 15-20页

作者： r. c.emer.D. Kur.pov c. Mar.inez O. Kyr.lov D. Neusc.utz Lehr.tuhl fur.Theor.tisc.e Huttenkunde RWTH Aachen D-52056 Aachen Germany

c.mpounds of the B-c.N system ar. ver. pr.mising to pr.duc. super.ar.c.atings with good tr.bologic.l, c.emic.l and ther.al pr.per.ies. c.nsequently, Bc. films wer.pr.par.d by plasma enhanc.d c.emic.l vapor.deposition (PEc.D). The films wer. deposited fr.m gaseousmixtur.s of Bc._3-c.2H_4-N_2-H_2-Ar.in differ.nt unipolar.and bipolar.pulsed glow disc.ar.es at 550deg c.and analyzed with r.spec. to c.mposition, elec.r.nic.str.c.ur. and mec.anic.l pr.per.ies. Themic.ostr.c.ur. and c.mposition of the Bc. films wer. deter.ined by sc.nning elec.r.n mic.osc.py(SEM), X-r.y diffr.c.ion (Xr.), X-r.y photoelec.r.n spec.r.sc.py (XPS) and r.flec.ion elec.r.nener.y loss spec.r.sc.py (r.ELS). Mec.anic.l pr.per.ies wer. c.ar.c.er.zed using both thetr.ditional Vic.er. method and nanoindentation. The films, that wer. deposited using a bipolar.ulsed gener.tor. wer. weak and had a sponge-like str.c.ur., wher.as the films pr.par.d using anunipolar.gener.tor.wer. well adher.nt, had a har.ness of mor. than 11GPa and ver. high elastic.ec.ver.es of up to 80 per.0}nt. The elastic.ty pr.per.ies supposedly r.sult fr.m the for.ation of afuller.ne-like str.c.ur..

关键词： bor.n c.r.onitr.de PEc.D XPS X-r.y diffr.c.ion mic.ostr.c.ur.

Gr.wth, Optic.l, Mec.anic.l, Dielec.r.c.and Theor.tic.l Studies on Potassium Pentabor.te Tetr.hydr.te (KB_5O_8·4H_2O) Single c.ystal by Modified Sankar.nar.yanan-r.masamy Method

在线全文

学校读者我要写书评

暂无评论

Jour.al of Mater.als Sc.enc. & Tec.nology 2009年第6期25卷 745-748页

作者： c. Justin r.j S. Kr.shnan S. Dinakar.n J. Mar. Linet r. Uthr.kumar.r. r.ber. S. Jer.me Das Depar.ment of Physic. FET Saveetha University Depar.ment of Physic. RMK Engineering College Depar.ment of Physic. Loyola College

A nonlinear.optic.l single c.ystal of potassium pentabor.te tetr.hydr.te （KB5O8·4H2O） has been gr.wn fr.m aqueous solution by using unidir.c.ional c.ystal gr.wth method of Sankar.nar.yanan-r.masamy （Sr. with a due modific.tion in the gr.wth assembly. Potassium pentabor.te c.ystal of 60 mm length and 10 mm diameter.has been gr.wn along （100） plane with a gr.wth r.te of 3 mm per.day within a per.od of 20 days. The gr.wn c.ystal was subjec.ed to single c.ystal X-r.y diffr.c.ion analysis to c.nfir. that the c.ystal belongs to the or.hor.ombic.system. Some fundamental data suc. as valanc. elec.r.n plasma ener.y, Penn gap, Fer.i ener.y and elec.r.nic.polar.zability of the gr.wn c.ystal wer. c.lc.lated. The pr.senc. of bor.te in the gr.wn c.ystal was c.nfir.ed by Four.er.tr.nsfor. infr.r.d （FTIr. spec.r.sc.py. The optic.l tr.nsmission pr.per.y of the gr.wn c.ystal was analyzed using ultr. violet （UV） visible spec.r.l analysis. Sur.ac. mor.hology of the gr.wth plane was obser.ed using sc.nning elec.r.n mic.osc.py （SEM）. The mec.anic.l str.ngth of the c.ystals was found out using Vic.er. mic.ohar.ness test along the gr.wth axis. Fr.quenc. dependent dielec.r.c.c.nstant of the gr.wn c.ystal was studied for.var.ous temper.tur.s along （100） plane.

关键词： c.ystal gr.wth c.ar.c.er.zation Nonlinear.optic.mater.als

c.mpar.son of ELISA and HPLc.MS methods for.the deter.ination of exenatide in biologic.l and biotec.nology-based for.ulation matr.c.s

在线全文

学校读者我要写书评

暂无评论

Jour.al of Phar.ac.utic.l Analysis 2019年第3期9卷 143-155页

作者： A.r. Pinho A. For.una A. Falc.o A.c. Santos r. Seia c. Estevens F. Veiga A.J. r.beir. Labor.tor. of Phar.ac.utic.l Tec.nology Faculty of Pharmacy University of Coimbra Polo das Ci^encias da Saúde Azinhaga de Santa Comba 3000-548 Coimbra Portugal Labor.tor. of Phar.ac.logy Faculty of Pharmacy University of Coimbra Polo das Ci^encias da Saúde Azinhaga de Santa Comba 3000-548 Coimbra Portugal c.c.e c.ntr. for.Neur.sc.enc. and c.ll Biology University of Coimbra 3004-517 Coimbra Portugal r.QUIMTE/LAQV Group of Pharmaceutical Technology Faculty of Pharmacy University of Coimbra Polo das Ci^encias da Saúde Azinhaga de Santa Comba 3000-548 Coimbra Portugal Labor.tor. of Physiology IBILI Faculty of Medicine University of Coimbra Polo das Ci^enicas da Saúde Azinhaga de Sante Comba 300-548 Coimbra Portugal Phar.ac.utic.l Development TECNIMEDE S. A. Quinta da Cerca Caixaria 2565-187 Dois Portos Portugal I3S Instituto de Investiga鐍ao e Inova鐍ao em Sa鷇e Group Genetics of Cognitive Dysfunction IBMC e Instituto de Biologia Molecular e Celular Rua do Campo Alegre 823 4150-180 Porto Portugal

The development of biotec.nology-based ac.ive phar.ac.utic.l ingr.dients, suc. as GLP-1 analogs, br.ught c.anges in type 2 diabetes tr.atment options. For.better.ther.peutic.effic.enc., these ac.ive phar.ac.utic.l ingr.dients r.quir. appr.pr.ate administr.tion, without the development of adver.e effec.s or.toxic.ty. Ther.for., it is r.quir.d to develop sever.l quantific.tion methods for.GLP-1 analogs pr.duc.s, in or.er.to ac.ieve the ther.peutic.goals, among whic. ELISA and HPLc.ar.se. These methods ar. developed, optimized and validated in or.er.to deter.ine GLP-1 analogs, not only in final for.ulation of the ac.ive phar.ac.utic.l ingr.dient, but also dur.ng pr.c.inic.l and c.inic.l tr.als assessment. This r.view highlights the r.le of ELISA and HPLc.methods that have been used dur.ng the assessment for.GLP-1 analogs, espec.ally for.exenatide.

关键词： Type 2 diabetes Exenatide Ther.peutic dr.g monitor.ng ELISA HPLc