检索结果-南通市图书馆

Modellin. of Edge Plasma on.JT-60U Tokamak by Usin. SOLPS5.0 Code

在线全文

学校读者我要写书评

暂无评论

Plasma Scien.e an. Tech.0}logy 2011年第3期13卷 302-306页

作者：陈一平 h. KAWASh.MA n. ASAKURA K. Sh.MIZU h. TAKEn.GA In.titute of Plasma Ph.sics Chinese Academy of Sciences Hefei 230031 China Japan.Atomic En.rgy Agen.y Naka-shi Ibaraki-Ken 311-0193 Japan

Th. edge tran.port code SOLPS5.0 is used to model edge plasmas in.th. experi- men.al sh.ts on.JT-60U an. th. profiles of th. tran.verse particle an. h.at tran.port coefficien.s D, Xe an. Xi alon. th. outer midplan. are obtain.d by fittin. th. simulation.l results to th. experimen.al data in.L-mode sh.t 39090 an. h.mode sh.ts 37851, 37856. Th. modellin. an. fittin. results sh.w th.t with.n.th. pedestal region.in.h.mode sh.ts 37851 an. 37856 th. radial particle tran.port coefficien. D exh.bits a sign.fican. drop, but, for L-mode sh.t 39090, th. obvious drop in.both.D an. Xe was n.t foun..

关键词： SOLPS5.0 JT-60U modellin.

Proliferation.of exogen.usly in.ected primordial germ cells (PGCs) in.o busulfan.treated ch.cken.embryos

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

Asian.Journ.l of An.rology 1999年第4期1卷 187-190页

作者： h. Furuta n. Fujih.ra animal Resource Scien.e Section Division of Bioresource and Bioenvironmental Sciences Graduate School Kyushu University Fukuoka 812-8581 JapanAnimal Resource Science Section Division of Bioresource and Bioenvironmental Sciences Graduate School Kyushu University Fukuoka 812-8581 Japan

Aim: Th.s study was design.d to in.estigate th. effect of busulfan.treatmen. on.th. proliferation.of ch.cken.primordialgerm cells (PGCs) in.vivo, focusin. on.th. preferen.ial settlemen. of PGCs on.o th. germin.l ridges of ch.cken.em-bryos. Meth.ds: Busulfan.(250 n./egg) was in.ected in.o th. egg wh.te of fresh.y oviposited fertilized eggs, wh.ch.ere th.n.in.ubated. Embryon.c developmen. an. viability were examin.d, an. exogen.us PGCs collected from embry-on.c blood vessels were in.ected in.o th. germin.l crescen. region.of recipien. embryos. Th. n.mber of PGCs residedon.o germin.l ridges of th. righ. an. left sides were compared. Results: Busulfan.h.d a sligh. h.rmful effect on.th.embryo viability an. th. PGCs proliferation. Th. n.mber of PGCs resided on.o th. left side of germin.l ridges wassligh.ly h.gh.r as compared with.th. righ. side. Con.lusion. Busulfan.suppressed th. viability of embryos an. th. pro-liferation.of en.ogen.us PGCs in.th. recipien. embryos. h.wever, th. n.mber of exogen.us PGCs proliferated wash.gh.r in.embryos treated with.busulfan.th.n.th.se with.ut busulfan. Data also suggest th. possibility of a preferen.ialresiden.e of PGCs toward th. left side of th. germin.l crescen. region.as compared with.th. figh., wh.ch.may be due toa more advan.ed fun.tion.l developmen. of th. left gon.d th.n.th. righ.. (Asian.J An.rol 1999 Dec; 1: 187-190)

关键词： ch.ck embryo germ cells proliferation busulfan

Global stability of a delayed virus dyn.mics model with.multi-staged in.ected progression.an. h.moral immun.ty

在线全文

学校读者我要写书评

暂无评论

In.ern.tion.l Journ.l of Biomath.matics 2016年第4期9卷 193-218页

作者： A. M. Etaiw n. h. AlSh.mrani Departmen. of Math.matics Faculty of Science King Abdulaziz University P. O. Box 80203 Jeddah 21589 Saudi Arabia

In.th.s paper, we propose a n.n.in.ar virus dyn.mics model th.t describes th. in.erac- tion. of th. virus, un.n.ected target cells, multiple stages of in.ected cells an. B cells an. in.ludes multiple discrete delays. We assume th.t th. in.iden.e rate of in.ection.an. removal rate of in.ected cells are given.by gen.ral n.n.in.ar fun.tion.. Th. model can.be seen.as a gen.ralization.of several h.moral immun.ty viral in.ection.model presen.ed in.th. literature. We derive two th.esh.ld parameters an. establish.a set of con.ition. on.th. gen.ral fun.tion. wh.ch.are sufficien. to establish.th. existen.e an. global stability of th. th.ee equilibria of th. model. We study th. globa! asymptotic stability of th. equilibria by usin. Lyapun.v meth.d. We perform some n.merical simulation. for th. model with.specific forms of th. gen.ral fun.tion. an. sh.w th.t th. n.merical results are con.isten. with.th. th.oretical results.

关键词： Virus dyn.mics in.racellular delay global stability h.moral immun. res-pon.e Lyapun.v fun.tion.l.

Performan.e of th. geometric approach.to fault detection.an. isolation.in.SISO,MISO,SIMO an. MIMO systems

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

Journ.l of Zh.jian. Un.versity-Scien.e A(Applied Ph.sics & En.in.erin.) 2007年第9期8卷 1443-1451页

作者： RAh.MI n. SADEGh. M. h. MAh.OOB M. J. Mech.0}cal En.in.erin. Departmen. University of TabrizTabriz ***Iran Mech.0}cal En.in.erin. Departmen. University of TehranTehran ***Iran

In.th.s paper, a geometric approach.to fault detection.an. isolation.（FDI） is applied to a Multiple-In.ut Multipie-Output （MIMO） model of a frame an. th. FDI results are compared to th. on.s obtain.d in.th. Sin.le-In.ut Sin.le-Output （SISO）, Multiple-In.ut Sin.le-Output （MISO）, an. Sin.le-In.ut Multiple-Output （SIMO） cases. A proper distan.e fun.tion.based on.parameters obtain.d from parametric system iden.ification.meth.d is used in.th. geometric approach. ARX （Auto Regressive with.exogen.us in.ut） an. VARX （Vector ARX） models with.12 parameters are used in.all of th. above-men.ion.d models. Th. obtain.d results reveal th.t by in.reasin. th. n.mber of in.uts, th. classification.errors reduce, even.in.th. case of applyin. on.y on. of th. in.uts in.th. computation.. Furth.rmore, in.reasin. th. n.mber of measured outputs in.th. FDI sch.me results in.decreasin. classification.errors. Also, it is sh.wn.th.t by usin. probabilistic space in.th. distan.e fun.tion. fault diagn.sis sch.me h.s better performan.e in.comparison.with.th. determin.stic on..

关键词： Fault detection.an. isolation.(FDI) Multivariate systems Parametric system iden.ification Lin.ar regression Distan.e fun.tion.

Effect of th. ch.latin. agen.s on.bio-sorption.of h.xavalen. ch.omium usin. Agave sisalan. fibers

在线全文

学校读者我要写书评

暂无评论

Ch.n.se Journ.l of Ch.mical En.in.erin. 2018年第5期26卷 984-992页

作者： h. Ben.jeffal A. Djebli h. Mamin. T. Metidji M. Dah.k n. Rebbani Y. Bouh.dja h.gh.r Sch.ol of Tech.0}logical Education ENSET-Skikda 21000 Algeria Laboratory of Water Treatmen. an. Valorization.of In.ustrial Wastes Badji-Mokhtar University P.O. Box 12 Annaba 23000 Algeria Cen.re de Rech.rch. Scien.ifique et Technique en Analyses Physico-Chimiques BP 384 Siege ex-Pasna Zone Industrielle Bou-Ismail CP 42004 Tipaza Algeria

Th. curren. work is focused on.th. study of th. bio-sorption.of h.xavalen. ch.omium from aqueous solution.usin. sisal n.tural fiber(Agave sisalan.) treated by various ch.latin. agen.s(ligan.s) such.as urea(UR),th.ocarbamide(TC), eth.len.diamin.tetraacetic acid(EDTA), an. diph.n.l carbazide(DCZ). Th. fiber treatmen.s were in.estigated usin. Fourier Tran.form In.rared Spectroscopy(FTIR) an. Scan.in. electron.microscope(SEM). Th. kin.tics of ch.omium bio-sorption.was studied in.batch.presses un.er th. effect of some ph.sicoch.mical factors such.as th. n.ture of ch.latin. agen.(F@UR, F@TC, F@DCZ, an. F@EDTA),adsorben. dose(2–10 g·L^(-1)), ch.omium in.tial con.en.ration.100–500 mg·L^(-1)), solution.ph.1–6), an. batch.temperature(20 ℃–50 ℃). Th.s study resulted in.an.optimum adsorption.at a ch.omium in.tial con.en.ration.of 100 mg·L^(-1), at ph.2, an. at 20 ℃. Th. obtain.d results sh.wed clearly th.t th. treatmen. with.ch.latin. agen. boosts th. adsorptive capacity of A. sisalan. fibers Cr(VI) 10.9 mg·g^(-1) to 58.6 mg·g^(-1). Th. modelin. study sh.wed th.t th. adsorption.kin.tics obey th. pseudo-secon.-order model, with.an.R2 in.th. ran.e of 0.991 an. 0.999. Th. bio-sorption.isoth.rms followed th. Lan.muir model; th. maximum uptake capacity of(F@n. F@UR,F@TC, F@DCZ, an. F@EDTA) was foun. to be respectively, 12.3 mg·g^(-1), 25.33 mg·g^(-1), 28.73 mg·g^(-1),42.54 mg·g^(-1), an. 61.45 mg·g^(-1). Th. determin.d adsorption.th.rmodyn.mics parameters such.as en.h.lpy,free en.rgy, an. en.ropy sh.wed th.t th. adsorption.process is exoth.rmic, spon.an.ous, an. h.s a stable con.iguration.

关键词： Agave sisalan. Bio-sorption Ch.latin. agen. Ch.omium(VI) Fibers

A Teletraffic Model for Service Differen.iation.in.OPS n.tworks

在线全文

学校读者我要写书评

暂无评论

光学学报 2003年第S1期23卷 677-678页

作者： h. Overby n. Stol n.rwegian.Un.versity of Tech.0}logy an. Scien.e (n.n.) Department of Telematics O.S. Bragstadsplass 2E N-7491 Trondheim NorwayNorwegian University of Technology and Science (NTNU) Department of Telematics O.S. Bragstadsplass 2E N-7491 Trondheim Norway

Th.s paper presen. a formal teletraffic model for service diferen.iation.in.optical packet switch.d n.tworks by utilizin. th. wavelen.th.*** for th. time con.estion.are *** results are also reported.

关键词： OPS for in A Teletraffic Model for Service Differen.iation.in.OPS n.tworks

Tran.port Ch.racteristics of Mesoscopic Radio-Frequen.y Sin.le Electron. Tran.istor

在线全文

学校读者我要写书评

暂无评论

Ch.n.se Ph.sics Letters 2008年第1期25卷 250-253页

作者： A. h. Ph.llips n. A. I. Aly K. Kirah.h. E. El-Sayes Faculty of En.in.erin. Ain-Shams University Cairo Egypt h.gh.r Tech.0}logical In.titute Ramadan Tenth City Egypt

Th. tran.port property of a quan.um dot un.er th. in.luen.e of extern.l time-depen.en. field is in.estigated. Th. mesoscopic device is modelled as semicon.uctor quan.um dot coupled weakly to supercon.uctin. leads via asymmetric double tun.el barriers of differen. h.igh.s. An.expression.for th. curren. is deduced by usin. th. Lan.auer-Buttiker formula, takin. in.o con.ideration.of both.th. Coulomb blockade effect an. th. magn.tic field. It is foun. th.t th. periodic oscillation.of th. curren. with.th. magn.tic field is con.rolled by th. ratio of th. frequen.y of th. applied ac-field to th. electron.cyclotron.frequen.y. Our results sh.w th.t th. presen. device operates as a radio-frequen.y sin.le electron.tran.istor.

关键词： pulsars x-ray spectra relativity an. gravitation redsh.ft

Con.ective h.at tran.fer from two rotatin. circular cylin.ers in.tan.em arran.emen. by usin. lattice Boltzman. meth.d

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

Applied Math.matics an. Mech.1}cs(En.lish.Edition. 2012年第4期33卷 427-444页

作者： h. n.MATI M. FARh.DI K. SEDIGh. M. M. PIROUZ n. n. ABATARI Faculty of Mech.0}cal En.in.erin. Babol Noshirvani University of Technology

Th. n.merical in.estigation.of th. two-dimen.ion.l lamin.r flow past two ro- tatin. circular cylin.ers in.th. tan.em arran.emen. is con.ucted by th. lattice Boltzman. meth.d. Th. n.merical strategy is used for dealin. with.curved an. movin. boun.aries of th. secon.-order accuracy for velocity an. temperature fields. Th. effects of various rotation.l speed ratios an. gap spacin. are studied with.th. Reyn.lds n.mber of 100 an. th. Pran.tl n.mber of 0.71. A varied ran.e of rotation.l speed ratios are in.estigated for four differen. gap spacin., i.e., 3.0, 1.5, 0.7, an. 0.2. Th. results sh.w th.t, for th. first cylin.er, th. lift an. drag coefficien.s for large gap spacin. are similar to th.se for a sin.le cylin.er; for th. secon. cylin.er, th. lift coefficien. descen.s with.th. in.rease in.th. an.ular velocity for all gap spacin., wh.le th. drag coefficien. ascen.s except for th. gap spacin. of 3.0. Th. results of th. averaged periodic n.sselt n.mber on.th. surface of th. cylin.ers sh.w th.t, for small distan.es between.th. cylin.ers an. low an.ular velocities, con.uction.is a domin.n. mech.65}sm of h.at tran.fer, but for large distan.es an. h.gh.an.ular velocities, con.ection.is th. main.mech.65}sm of h.at tran.fer.

关键词： lattice Boltzman. meth.d rotatin. circular cylin.er lamin.r flow curvedan. movin. boun.ary

Extraction.of reson.n.e parameters from meson.production.reaction

在线全文

学校读者我要写书评

暂无评论

Ch.n.se Ph.sics C 2009年第12期33卷 1140-1145页

作者： T. Sato n. Suzuki T. -S. h. Lee Departmen. of Ph.sics Osaka University Toyonaka Osaka 560-0043 Japan Excited Baryon.An.lysis Cen.er(EBAC) Thomas Jefferson National Accelerator Facility Newport News Virginia 23606 USA Ph.sics Division Argonne National Laboratory Argonne IL 60439 USA

We h.ve developed an.an.lytic con.in.ation.meth.d for extractin. parameters of n.cleon.reson.n.es with.n.a h.milton.an.formulation.of meson.n.cleon.reaction.. Th. meth.d was tested for simple solvable models an. th.n.applied for our recen. coupled ch.n.els model （πn. ηn. π△, ρn. an. σn.） of th. π＊n.an. γ＊n.reaction.. Th. reson.n.e pole position. an. th.ir properties are studied for P11an. P11 ch.n.els.

关键词： baryon.reson.n.e meson.production.reaction reson.n.e pole