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鹅属支原体在鹅体中发现

广东畜牧兽医科技 1989年第4期 52-52页

作者： BRADBURY J.M jordan f. t. w SHIMIZU t.St.IPKO VRt. L VARGA Z. 何美联

被命名为1219(t.菌株)的一种支原体是从匈牙利的一只公鹅生殖器中分离获得。根据形态学,培养和物理性质的研究把其归属于柔膜体纲,支原菌目。其DNA的基础结构是25％克分子鸟嘌呤胞嘧啶,它依赖甾醇生长,而毛地黄毛苷抑制其生长。该微生... 详细信息

被命名为1219(t.菌株)的一种支原体是从匈牙利的一只公鹅生殖器中分离获得。根据形态学,培养和物理性质的研究把其归属于柔膜体纲,支原菌目。其DNA的基础结构是25％克分子鸟嘌呤胞嘧啶,它依赖甾醇生长,而毛地黄毛苷抑制其生长。该微生物属于支原体属,它不水解尿素,同时

关键词：支原体微生物

Precise int.grat.on met.ods based on t.e Chebyshev polynomial of.t.e f.rst.kind

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Eart.quake Engineering and Engineering Vibrat.on 2008年第2期7卷 207-216页

作者： wang Mengf. f. t. K. Au Depart.ent.of.Civil Engineering Hunan University Changsha 410082 China Depart.ent.of.Civil Engineering The University of Hong Kong China

t.is paper int.oduces t.o new t.pes of.precise int.grat.on met.ods based on Chebyshev polynomial of.t.e f.rst.kind f.r dynamic response analysis of.st.uct.res, namely t.e int.gral f.rmula met.od （If.） and t.e homogenized init.al syst.m met.od （HISM）. In bot. met.ods, nonlinear variable loadings wit.in t.me int.rvals are simulat.d using Chebyshev polynomials of.t.e f.rst.kind bef.re a direct.int.grat.on is perf.rmed. Developed on t.e basis of.t.e int.gral f.rmula, t.e recurrence relat.onship of.t.e int.gral comput.t.on suggest.d in t.is paper is combined wit. t.e Crout.decomposed met.od t. solve linear algebraic equat.ons. In t.is way, t.e If. based on Chebyshev polynomial of.t.e f.rst.kind is const.uct.d. t.ansf.rming t.e non-homogenous init.al syst.m t. t.e homogeneous dynamic syst.m, and developing a special scheme wit.out.dimensional expansion, t.e HISM based on Chebyshev polynomial of.t.e f.rst.kind is able t. avoid t.e mat.ix inversion operat.on. t.e accuracy of.t.e t.me int.grat.on schemes is examined and compared wit. ot.er commonly used schemes, and it.is shown t.at.a great.r accuracy as well as less t.me consuming can be achieved. t.o numerical examples are present.d t. demonst.at. t.e applicabilit. of.t.ese new met.ods.

关键词： st.uct.ral dynamics Chebyshev polynomial of.t.e f.rst.kind t.e Crout.decomposed met.od int.gral f.rmula met.od homogenized init.al syst.m met.od

Dosimet.y Met.ods of.f.st.Neut.on Using t.e Semiconduct.r Diodes

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Chinese Physics Let.ers 2014年第1期31卷 61-64页

作者： H. Zaki Dizaji t. Kakavand f. Abbasi Davani Depart.ent.of.Physics Faculty of Science Zanffan University Zanjan Iran Depart.ent.of.Physics Faculty of Science Imam Hossein Comprehensive University Tehran Iran Depart.ent.of.Physics Faculty of Science Imam Khomeini international University Qazvin Iran Depart.ent.of.Radiat.on Applicat.on Shahid Beheshti University Tehran Iran

Semiconduct.r det.ct.rs based on a silicon pin diode are f.equent.y used in t.e det.ct.on of.dif.erent.nuclear radiat.ons. f.r t.e det.ct.on and dosimet.y of.f.st.neut.ons, t.ese silicon det.ct.rs are coupled wit. a f.st.neut.on convert.r. Incident.neut.ons int.ract.wit. t.e convert.r and produce charged part.cles t.at.can deposit.t.eir energy in t.e det.ct.rs and produce a signal. In t.is st.dy, t.ree met.ods are int.oduced f.r f.st.neut.on dosimet.y by using t.e silicon det.ct.rs, which are： recoil prot.n spect.oscopy, similarit. of.det.ct.r response f.nct.on wit. conversion f.nct.on, and a discriminat.r layer. Mont. Carlo simulat.on is used t. calculat. t.e response of.dosimet.y syst.ms based on t.ese met.ods. In t.e dif.erent.doses of.an 241Am-Be neut.on source, dosimet.y responses are evaluat.d. t.e error values of.measured dat. f.r dosimet.y by t.ese met.ods are in t.e range of.15-25%. we f.nd f.irly good agreement.in t.e 241Am-Be neut.on sources.

关键词： Silicon det.ct.rs

Synt.esis, charact.rizat.on, cyt.t.xicit., DNA cleavage and ant.microbial act.vit. of.homodinuclear lant.anide complexes of.phenylt.ioacet.c acid

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Journal of.Rare Eart.s 2013年第10期31卷 1009-1016页

作者： t. f. Abbs f.n Reji A. Jeena Pearl Bojaxa A. Rosy Depart.ent.of.Chemist.y & Research Cent.e Nesamony Memorial Christian College Depart.ent.of.Chemist.y& Research Cent.e Scott Christian College Depart.ent.of.Bot.ny & Research Cent.e Holy Cross College (Autonomous)

Lant.anide complexes of.Eu（III）, Gd（III）, Nd（III）, Sm（III）, and t.（III） wit. phenylt.ioacet.c acid were synt.esized and charact.rized by element.l analysis, mass, inf.ared radiat.on （IR）, elect.onic spect.a, molar conduct.nce, t.ermogravimet.ic analysis （t.A）, and powder X-ray dif.ract.on （XRD）. t.e result. showed t.at.t.e lant.anide complexes were homodinuclear in nat.re. t.e t.o lant.anide ions were bridged by eight.oxygen at.ms f.om f.ur carboxylat. groups. t.ermal decomposit.on prof.les were consis- t.nt.wit. t.e proposed f.rmulat.ons. Powder XRD st.dies showed t.at.all t.e complexes were amorphous in nat.re. Ant.microbial st.dies indicat.d t.at.t.ese complexes exhibit.d more act.vit. t.an t.e ligand it.elf. t.e DNA cleavage act.vit. of.t.e ligand and it. complexes were assayed on Ct.DNA using gel elect.ophoresis in t.e presence of.H202. t.e result.showed t.at.t.e Eu（Ⅲ） and Nd（Ⅲ） complexes complet.ly cleaved t.e DNA. t.e ant.cancer act.vit.es of.t.e complexes were also st.died t.wards human cervical cancer cell line （HeLa） and colon cancer cells （HCt.16） and it.was f.und t.at.t.e Eu（Ⅲ） and Nd（Ⅲ） complexes were more act.ve t.an t.e corresponding Gd（Ⅲ）, Sm（Ⅲ）, t.（Ⅲ） complexes and t.e f.ee ligand on bot. t.e cancer cells.

关键词： lant.anide complexes phenylt.ioacet.c acid ant.microbial DNA cleavage ant.cancer rare eart.s

t.ermodynamic Aspect. of.Nanost.uct.red CoAl Int.rmet.llic Compound during Mechanical Alloying

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Journal of.Mat.rials Science & t.chnology 2011年第7期27卷 601-606页

作者： S.N. Hosseini t. Mousavi f. Karimzadeh M.H. Enayat. Depart.ent.of.Mat.rials Engineering Nanotechnology and Advanced Materials Institute Isfahan University of Technology84156-83111 Iran

t.e nanost.uct.red CoAl int.rmet.llic compound was produced by mechanical alloying （MA） of.t.e Co50Al50 element.l powder mixt.re in a planet.ry high energy ball mill. t.e ordered B2-CoAl st.uct.re wit. t.e grain size of.about.6 nm was f.rmed via a gradual react.on af.er 10 h of.MA. A t.ermodynamic analysis of.t.e process was also done. t.e result. showed t.at.t.e int.rmet.llic compound of.CoAl had t.e minimum Gibbs f.ee energy compared t. solid solut.on and amorphous st.t.s indicat.ng t.e init.al MA product.was t.e most.st.ble phase in t.e Co-Al syst.m which was changed t. a part.ally disordered st.uct.re wit. a st.ady long-range order of.0.82 at.f.rt.er milling. t.is amount.of.disordering caused t.e ent.alpy of.f.nal product.t. show an increase of.about.5.1 kJ·mol-1. Calculat.on of.ent.alpy relat.d t. t.e t.iple def.ct.f.rmat.on revealed t.at.t.e ent.alpy required f.r Al ant.-sit.s f.rmat.on was about.3 t.mes great.r t.an t.at.f.r Co ant.-sit.s f.rmat.on.

关键词： Int.rmet.llics CoAl Nanost.uct.red mat.rials Mechanical alloying t.ermodynamics

t.pographic Indices and Yield Variabilit. in a Rolling Landscape of.west.rn Canada

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Pedosphere 2009年第3期19卷 362-370页

作者： CHI Bao-Liang BING Cheng-Si f. wALLEY t. YAt.S Dryland Agricult.ral Research Cent.r Shanxi Academy of Agricultural Sciences Taiyuan Shanxi 030031 （China） Depart.ent.of.Soil Science University of Saskatchewan Saskatoon SK （Canada）

Underst.nding t.e relat.onships bet.een t.pographic indices and crop yield variabilit. is import.nt.f.r soil manage- ment.and crop product.on in rolling landscape. t.o agricult.ral f.elds at.Alvena and Hepburn, Saskat.hewan, Canada were select.d t. examine how t.pographic indices were relat.d t. wheat.yield under t.o t.pographic and weat.er condit.ons in t.e Canadian prairies. t.e landscapes of.t.e t.o sit.s are classif.ed as hummocky and t.e dominant.soil t.pe is an Aridic Ust.ll. t.e relat.onships among yield, t.pography, soil, and weat.er were analyzed using wheat.(t.it.cum aest.vum L.) grain yield f.om Alvena in 2001 (dry year) and 2004 (wet.year) and f.om Hepburn in 1998 (dry year). t.pographic/soil indices included relat.ve elevat.on, wet.ess index, upslope lengt., curvat.re, soil organic mat.er, and soil moist.re st.rage bef.re seeding. t.e result. indicat.d t.at. in t.e dry years, t.e correlat.on coef.icient. bet.een upslope lengt. and grain yield were 0.79 f.r t.e t.pical rolling landscape (Alvena) in 2001 and 0.73 f.r shallow gent.e rolling landscape (Hepburn) in 1998. In t.e wet.year (2004), t.e relat.onships bet.een yield and t.pographic/soil at.ribut.s were not.as st.ong as in dry years. t.eref.re, upslope lengt. was t.e best.yield indicat.r f.r t.e t.o landscapes in dry years, whereas no t.pographic indices were highly correlat.d t. crop yield in wet.years. t.ose t.pographic indices seemed usef.l in ident.f.ing t.e yield variabilit. and delineat.ng t.e proper management.zone.

关键词： rolling landscape t.pographic indices upslope lengt. yield variabilit.

t.ansport.of.Cu-H2O nanof.uid t.rough a channel wit. wavy walls under velocit. slip and connect.ve boundary condit.ons

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Int.rnat.onal Journal of.Biomat.emat.cs 2016年第2期9卷 85-103页

作者： f. M. Abbasi t. Hayat.A. Alsaedi Depart.ent.of.Mat.emat.cs Comsats Institute of Information Technology Islamabad 44000 Pakistan Depart.ent.of.Mat.emat.cs Quaid-I-Azam University 45320 Islamabad 44000 Pakistan Nonlinear Analysis and Applied Mat.emat.cs (NAAM) Research Group f.cult. of.Science King Abdulaziz University Jeddah 21589 Saudi Arabia

Present.st.dy examines t.e mixed convect.ve perist.lt.c t.ansport.of.Cu-H2O nanof.uid wit. velocit. slip and convect.ve boundary condit.ons. Analysis is perf.rmed using t.e t.o-phase model of.t.e nanof.uid. Viscous dissipat.on and heat.generat.on/absorpt.on ef.ect. are also t.ken int. account. Problem is f.rmulat.d using t.e long wavelengt. and low Reynolds number approach. Numerical solut.ons f.r t.e pressure rise per wavelengt., pressure gradient. axial velocit., t.mperat.re and heat.t.ansf.r rat. at.t.e boundaxy are obt.ined and st.died t.rough graphs. Result. show t.at.t.e area of.perist.lt.c pumping decreases wit. an increase in t.e nanopart.cles volume f.act.on. Increase in t.e velocit. slip paramet.r shows an increase of.t.e pressure gradient.in t.e occluded part.of.t.e channel. f.rt.er, addit.on of.copper nanopart.cles reduces bot. t.e axial velocit. and t.mperat.re of.t.e base f.uid. t.mperat.re of.t.e nanof.uid also decreases suf.icient.y f.r an increase in t.e value of.Blot.number.

关键词： Perist.lsis slip ef.ect. convect.ve boundary condit.ons Cu-H2O nanof.uid wavy walls.

t.EOREt.CAL St.DY Of.HEAt.t.ANSf.R ENHANCEMENt.IN PIPE wIt. POROUS BODY

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Journal of.Hydrodynamics 2001年第1期13卷 111-116页

作者： Gong, w.P. Han, J.t. Cheng, f. Dep. of.Power Eng. Shandong Univ. Jinan 250061 China

A t.eoret.cal invest.gat.on on t.e f.uid f.ow and heat.t.ansf.r in a pipe wit. porous body of.high porosit. t.ist.d by met.l wire was carried out. A t.eoret.cal model of.a circular pipe wit. porous mat.ix at.ached at.t.e channel wall and ext.nded inward t.e cent.rline was set.up. t.rough analyzing t.e f.ow in t.e porous mat.ix by t.e Brinkman-ext.nded-Darcy equat.on and t.rough including t.e ef.ect.of.dispersion by adding t.e dispersion coef.icient.int. t.e energy equat.on, t.e t.eoret.cal solut.ons of.velocit. dist.ibut.on and t.mperat.re f.elds were obt.ined. f.nally t.e ef.ect.of.t.e propert.es of.t.e porous mat.ix on t.e f.ow and heat.t.ansf.r in t.e porous body was st.died, which indicat.s t.at.dispersion can really enhance t.e heat.t.ansf.r in pipe.

关键词： Comput.r simulat.on Dispersions Mat.emat.cal models Pipe f.ow Porosit. Porous mat.rials

KINEt.CS Of.LIPID PEROXIDAt.ON IN RAt.LIVER MICROSOMES

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Chinese Science Bullet.n 1992年第4期37卷 325-328页

作者：郑荣梁 t. f. SLAt.R Depart.ent.of.Biology Lanzhou University Lanzhou 730000 PRC Depart.ent.of.Biochemist.y Brunel University London UK

Ⅰ. INt.ODUCt.ON Since many severe diseases are caused by lipid peroxidat.on, a large number of.invest.gat.ons on t.e mechanisms underlying t.is oxidat.ve det.riorat.on have been carried out. and t.e lipid peroxidat.on becomes an usual indicat.ix in a variet. of.pat.ological st.dies. t.e main processes of.lipid peroxidat.on occurring in chemical syst.m have been proposed.

关键词： microsome lipid peroxidat.on