检索结果-南通市图书馆

Forage.and bre.d e.fe.ts on be.avior and te.pe.ame.t of pre.nant be.f he.fe.s

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

Journal of Animal Scie.ce.and Biote.hnology 2013年第3期4卷 165-169页

作者： Ange.a R Mays Michae. L Loope. Be.jamin C Williamson kenneth P Coffe. Wayne.K Coble.tz Gle. e.Aike. Charle. F Rose.krans Jr De.artme.t of Animal Scie.ce University of ArkansasFayetteville AR 72701 USA De.artme.t of Agricultural Scie.ce. Morehead StateUniversity327 Reed Hall Morehead KY 40351 USA USDA-ARS US Dairy Forage Research CenterMarshfield WI 54449 USA USDA-ARS Forage Animal Production Research UnitLexingtonKY 40546 USA

Background： Inte.ration of be.avioral obse.vations with traditional se.e.tion sche.e. may le.d to e.hance. animal we.l-be.ng and more.profitable.forage.base. cattle.production ***-influe.ce.（BR;n = 64） and Ge.bvie. × Angus（GA;n = 64） he.fe.s consume. e.the. toxic e.dophyte.infe.te. tall fe.cue.e.） or one.of two nontoxic e.dophyte.infe.te. tall fe.cue.NT） cultivars during two *** we.e.we.ghe. at midpoint and te.mination of *** be.avior（grazing,re.ting in the.shade.lying,or standing without grazing） was re.orde.（n = 13 visual obse.vations pe. yr in June.and July） for e.ch *** yr 2,e.it ve.ocity（e.） and se.um prolactin（PRL） we.e.***： Grazing be.avior was influe.ce.（P 0.05） by an inte.action be.we.n fe.cue.cultivar and bre.d *** × Angus he.fe.s assigne. to e. pasture. had the.lowe.t pe.ce.tage.of animals grazing and the.large.t pe.ce.tage.of animals re.ting in the.***-influe.ce. he.fe.s had faste. e.（P 0.001） than GA he.fe.s（0.52 vs.0.74 ± 0.04 s/m,re.pe.tive.y）.Body we.ght（BW） was affe.te.（P 0.01） by an inte.action of tall fe.cue.cultivar and d,and an inte.action of tall fe.cue.cultivar and bre.d *** grazing NT pasture. we.e.he.vie.（P 0.01） than he.fe.s grazing e. pasture. at midpoint and *** × Angus he.fe.s grazing NT pasture. we.e.he.vie.（P 0.01） than GA and BR he.fe.s grazing e. and BR he.fe.s grazing NT *** inte.action of forage.cultivar and bre.d type.occurre. on se.um PRL（P 0.01）.Conclusion： Colle.tive.y fe.cue.cultivar,e.,and conce.trations of se.um PRL we.e.associate. with grazing *** grazing NT pasture. we.e.obse.ve. to be.grazing more.than he.fe.s assigne. to e. pasture.,re.ardle.s of bre.d type.which may have.contribute. to change. in BW and ave.age.daily gain（ADG） in *** of be.avioral obse.vations along with traditional se.e.tion sche.e. may le.d to e.hance. animal we.l-be.ng and more.profitable.forage.base. cattle.prod

关键词： Cattle e.dophyte.infe.te. tall fe.cue Grazing be.avior Prolactin Te.pe.ame.t

Comparison of Ve.usian Coronae.with Giant Circumfe.e.tial Dyke.Swarms on e.rth

在线全文

学校读者我要写书评

暂无评论

Acta Ge.logica Sinica(e.glish e.ition) 2016年第S1期90卷 183-184页

作者： e.in M.Be.He.L Richard e.e.NST Claire.SAMSON kenneth L.BUCHAN De.artme.t of e.rth Scie.ce. Carleton University Faculty of Ge.logy and Ge.graphy Tomsk State University Ge.logical Surve. of Canada

The.surface.of Ve.us fe.ture. a large.numbe.(>500)of quasi-circular te.tono-magmatic fe.ture. known as *** are.characte.ize. in part by the.r topographic characte.istics,which can be.dive.se.and

关键词： Comparison of Ve.usian Coronae.with Giant Circumfe.e.tial Dyke.Swarms on e.rth

在线全文

学校读者我要写书评

暂无评论

STARAN中的多维访问存储器

计算机研究与发展 1980年第3期 22-26页

作者： kenneth e. Batche. 李德磊

STARAN 相联处理机具有若干个阵列模块。每个模块均带一台多维访问存储器。本文讨论用常规的随机存储器(RAM)片子来实现这种存储器。由于能按字方向和按位片方向访问数据,因而无需在RAM片子中增加费用制备特殊的逻辑就可进行相联处理。

关键词：存储器常规访问方式存贮器计算机 STARAN RAM 地址位向量运算

e.te.ding the.re.olution limits of nanoshape.imprint lithography using mole.ular dynamics of polyme. crosslinking

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Microsyste.s & Nanoe.gine.ring 2021年第1期7卷 141-150页

作者： Anshuman Che.ala Parth N.Pandya kenneth M.Lie.hti S.V.Sre.nivasan NASCe.T e.gine.ring Re.e.rch Ce.te. The University of Texas at AustinAustinTXUSA

e.e.ging nanoscale.applications in e.e.gy,e.e.tronics,optics,and me.icine.can e.hibit e.hance. pe.formance.by incorporating nanoshape. structure.(nanoshape.structure. he.e.are.de.ine. as shape. e.able. by sharp corne.s with radius of curvature.5 nm).Nanoshape. fabrication at high-throughput is we.l be.ond the.capabilitie. of advance. optical *** the.highe.t-re.olution e.be.ms and large.are. e.be.ms have.a re.olution limit of 5 and 18 nm half-pitch line. or 20 nm half-pitch hole.,re.pe.tive.y,the.r low throughput ne.e.sitate. finding othe. fabrication *** using nanoimprint lithography followe. by me.al-assiste. che.ical e.ching,diamond-like.nanoshape. with~3 nm radius corne.s and 100 nm half-pitch ove. large.are.s have.be.n pre.iously de.onstrate. to improve.the.nanowire.capacitor pe.formance.by~90%).In future.dynamic random-acce.s me.ory(DRAM)node.(with DRAM be.ng an e.e.plar CMOS application),the.imple.e.tation of nanowire.capacitors scale. toe.nanoshape.imprint lithography down to the.e.half-pitch value.,the.pre.iously e.tablishe. atomistic simulation frame.ork indicate. that the.curre.t imprint re.ist mate.ials are.unable.to re.ain the.nanoshape.structure. ne.de. for DRAM *** this study,the.pre.ious simulation frame.ork is e.te.de. to study improve. shape.re.e.tion by varying the.re.ist formulations and by introducing nove. bridge.structure. in nanoshape.*** simulation study has de.onstrate. viable.approache. to sub-10 nm nanoshape. imprinting with good shape.re.e.tion,which are.matche. by e.pe.ime.tal data.

关键词： lithography shape. corne.s

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

基于微型PMU的配电线路抗差参数辨识

电力自动化设备 2019年第2期39卷 1-7,43页

作者：薛安成徐飞阳游宏宇徐劲松 kenneth e.Martin 毕天姝华北电力大学新能源电力系统国家重点实验室北京102206 国网上海市电力公司上海200122 e.e.tric Powe. Group Pasadenausaca91101

微型相量测量单元装置为智能配电网提高可观性和可控性提供了基础。研究了基于微型相量测量单元的配电网线路参数抗差辨识方法:针对配电网三相运行不对称的情况,构建了基于相分量描述的配电线路三相π型等值模型,结合微型相量测量单元... 详细信息

微型相量测量单元装置为智能配电网提高可观性和可控性提供了基础。研究了基于微型相量测量单元的配电网线路参数抗差辨识方法:针对配电网三相运行不对称的情况,构建了基于相分量描述的配电线路三相π型等值模型,结合微型相量测量单元提供的多组线路两端电压、电流相量数据,提出了基于相分量模型的、适应配电网不对称运行的最小二乘线路参数辨识方法;并引入2种抗差方法,一种为基于Hube.估计的抗差最小二乘法,另一种为基于中位数估计的抗差最小二乘法。在中性点经消弧线圈或小电阻接地系统中,所提方法仅需要线路两端的电压和电流相量即可在辨识线路相参数的同时获得线路正序和零序参数;在中性点不接地系统中,由于没有零序电流分量,当系统正常运行时所提方法可辨识线路正序参数。算例仿真验证了所提方法的有效性,并比较了2种抗差方法在辨识精度、计算耗时方面的优劣,结果表明,基于中位数估计的抗差最小二乘法的抗差性能更好,计算时间较短。

关键词：配电线路微型PMU 抗差参数辨识相分量法最小二乘法 Hube.估计中位数估计中性点接地方式

Transport and humification of dissolve. organic matte. within a se.i-arid floodplain

在线全文

学校读者我要写书评

暂无评论

Journal of e.vironme.tal Scie.ce. 2017年第7期29卷 24-32页

作者： We.ming Dong Jiamin Wan Te.su K.Tokunaga Be.jamin Gilbe.t kenneth H.Williams e.rth and e.vironme.t Scie.ce. Are. Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

In orde. to unde.stand the.transport and humification proce.se. of dissolve. organic matte.（DOM） within se.ime.ts of a se.i-arid floodplain at Rifle.Colorado,fluore.ce.ce.e.citation–e.ission matrix（e.M） spe.troscopy,humification inde.（HIX） and spe.ific UV absorbance.SUVA） at 254 nm we.e.applie. for characte.izing de.th and se.sonal variations of DOM *** re.e.le. that late.spring snowme.t le.che. re.ative.y fre.h DOM from plant re.idue.and soil organic matte. down into the.de.pe. vadose.zone.VZ）.More.humifie. DOM is pre.e.e.tially adsorbe. by uppe. VZ se.ime.ts,while.non-or le.shumifie. DOM was transporte. into the.de.pe. ***,DOM at all de.ths unde.goe. rapid biological humification proce.s e.ide.ce. by the.products of microbial by-product-like.i.e.,tyrosine.like.and tryptophan-like. matte. in late.spring and e.rly summe.,particularly in the.de.pe. VZ,re.ulting in more.humifie. DOM（e.g.,fulvic-acid-like.and humic-acid-like.substance.） at the.e.d of *** indicate. that DOM transport is dominate. by spring snowme.t,and DOM humification is controlle. by microbial de.radation,with se.sonal *** is e.pe.te. that the.e.re.ative.y simple.spe.troscopic me.sure.e.ts（e.g.,e.M spe.troscopy,HIX and SUVA） applie. to de.th-and te.porally-distribute. pore.wate. sample. can provide.use.ul insights into transport and humification of DOM in othe. subsurface.e.vironme.ts as we.l.

关键词： Dissolve. organic matte. Transport Humification Se.i-arid Fluore.ce.ce.e.citation-e.ission matrix

e.pre.sion of Shiga Toxin B Subunit at Ce.l Surface.in e. coli K-12

在线全文

学校读者我要写书评

暂无评论

Scie.ce.China Che.istry 1993年第11期36卷 1352-1360页

作者：苏国富 Himanshu N.Brahmbhatt kenneth N.Timmis Institute.of Biote.hnology Academy of Military Medical Sciences CPLA Beijing 100850 PRC National Re.e.rch Ce.tre.for Biote.hnology Germany

The.thre. parts(Stx17B, Stx27B and StxB) of Shiga toxin B subunit have.be.n fuse. into a ce.l surface.e.pose. loop of the.LamB prote.n at a BamH I site.be.we.n re.idue. 153 and 154. We.te.n blotting re.e.le. that the.thre. parts of Shiga toxin B subunit could be.e.pre.se. as the.Lamb fusion prote.ns in e. coli. Indire.t immunofluore.ce.ce.and immunoe.e.tron microscopy analyse. showe. fusion prote.ns LamB/Stx17B and LamB/Stx27B could be.e.pre.se. at ce.l surface.in e. coli, but fusion prote.n LamB/StxB could not be.e.pre.se. at ce.l surface. it was aggre.ate. in cytoplasm and was toxic to host. This e.pre.sion syste. provide. a ne. way to construct an oral live.vaccine.against Shige.la dyse.te.iae.1.

关键词： Shiga toxin B subunit LamB ge.e e. coli K-12 ce.l surface e.pre.sion.

在线全文

学校读者我要写书评

暂无评论

活性炭上吸附平衡的三种预测方法比较

化工学报 1989年第6期40卷 655-663页

作者：汪大翚 T.She. kenneth e.Noll 浙江大学化工系伊里诺斯理工学院环境工程系

在用三种方法(摩尔体积、分子等张比容及摩尔电子极化度)计算亲和系数β的基础上,用polanyi-Dubinin方程预计了25℃下八种有机蒸汽以及25、40和60℃下另两种有机蒸气在活性炭上的吸附等温线.相应的实验数据用重量法测定.预计的和实验的... 详细信息

在用三种方法(摩尔体积、分子等张比容及摩尔电子极化度)计算亲和系数β的基础上,用polanyi-Dubinin方程预计了25℃下八种有机蒸汽以及25、40和60℃下另两种有机蒸气在活性炭上的吸附等温线.相应的实验数据用重量法测定.预计的和实验的数据对比表明:(1)对于优化的预计,参照物应与被预计吸附质有相似的极性;(2)选择适宜的参照物后,三种预计方法在精度上无明显差异;(3)对不同温度下的预计,摩尔体积法更为简便、实用.

关键词：活性炭吸附平衡预测法

Mothbe.n: A Pote.tial Summe. Crop for the.Southe.n Gre.t Plains

在线全文

学校读者我要写书评

暂无评论

Ame.ican Journal of Plant Scie.ce. 2018年第7期9卷 1391-1402页

作者： Gurjinde. S. Baath Brian K. Northup Prasanna H. Gowda kenneth e. Turne. Ale. C. Rocate.i De.artme.t of Plant and Soil Scie.ce. Oklahoma State University Stillwater OK USA Grazinglands Re.e.rch Laboratory USDA-ARS El Reno OK USA

Low nutritive.value.of available.warm-se.son grasse. during July through Se.te.be. limits the.production of ye.rling stocke. cattle.in the.southe.n Gre.t Plains (SGP). The.e.has be.n a continual e.ploration of spe.ie. with the.capacity to provide.high quality forage.during summe.. Mothbe.n (Vigna aconitifolia [Jacq.] Mare.hal), a short-duration, drought tole.ant crop is a promising choice.for the.SGP. This pre.iminary study e.aluate. the.pote.tial of mothbe.n as a summe. crop for forage. grain or gre.n manure. Re.ults of this study with 10 mothbe.n line. from a range.of ge.graphic locations sugge.te. that crop could be.harve.te. 100 days afte. planting with dry biomass yie.d range.of 7.3 - 18.1 Mg·ha-1. Mothbe.n forage.containe. 10.8% - 14.6% crude.prote.n (CP), 32.0% - 41.7% ne.tral de.e.ge.t fibe. (NDF), 20.7% - 29.6% acid de.e.ge.t fibe. (ADF), and 73% - 84% in vitro true.dige.tibility (IVTD) at maturity. Grain yie.d of the.10 mothbe.n line. varie. from 91 to 1040 kg·ha-1. The.10 te.te. line. ge.e.ate. a high amount of nitroge. (N) rich biomass at maturity with total accumulate. N of 163 - 316 kg·ha-1 and a C:N ratio of 16:1 to 22:1. Ove.all, pe.formance.indicators sugge.te. that mothbe.n has conside.able.pote.tial as an alte.native.crop for production of forage. grain, or gre.n manure.whe. grown as summe. crop in rotation with winte. whe.t. Future.re.e.rch should focus on e.aluating mothbe.n within diffe.e.t crop se.tings to de.ine.its capacity as gre.n manure.or summe. forage.to support production of stocke. cattle.in the.SGP.

关键词： Forage Quality Forage Yie.d Grain Le.ume. Gre.n Manure Drought Tole.ance