检索结果-南通市图书馆

Open Jour.al of Animal sciences 2015年第3期5卷 283-293页

作者： b. r. Min s. solaiman Depar.ment of Agr.cultur.l and Envir.nmental sciences Tuskegee University Tuskegee USA

An indoor.and a gr.zing exper.ment was conducted to deter.ine how estimated feed intake and digestion b. gr.zing goats consuming concentr.te, b.haigr.ss pastur., and mimosa b.0}wse changed with b.dy weight (b.), level of supplementation, and for.ge chemical composition. Twenty four.b.er.wether.goats wer. assigned in a completely r.ndomized design with r.peated measur.s on the following 3 tr.atments: concentr.te, mimosa b.0}wse, and b.hiagr.ss pastur.. Inter.al mar.er. used to estimate b.th dr. matter.(DM) digestib.lity (DMD) and DM intake (DMI) included acid deter.ent lignin (ADL) and acid insolub.e ash (AIA). Mar.er.der.ved estimates of DMD and DMI wer. compar.d with DMD measur.d b. total fecal collection or.dir.ctly measur.d b. in vivo feed intake r.te. b.th ADL and AIA-b.sed mar.er. in mimosa and b.hiagr.ss diets wer. similar.fr.m those der.ved b. in vivo DMD;however. AIA-b.sed mar.er.in concentr.te was under.estimated (P in vivo DMD in mimosa and b.hiagr.ss, although AIA concentr.tion in mimosa seemed to b. low compar.d to other.. All mar.er. yielded feed intake estimates that differ.d fr.m those der.ved b. ADL (P in vivo contr.l, with ADL (P in vivo intake methods for.digestib.lity studies. b.th ADL and AIA occur.in common for.ges at r.adily measur.b.e levels and lab.r.tor. pr.cedur.s ar. not difficult or.time consuming. Ther.for., b.th ADL and AIA have possib.e use in digestib.lity studies wher. other.methods may not b. applicab.e.

关键词： Digestib.lity Intake Mar.er. Lignin Ash

Effect of Weak Magnetic Inter.r.nular.Phase on the Coer.ivity in the HDDr.Nd-Fe-b.Magnet

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 Electr.magnetic Analysis and Applications 2009年第4期1卷 249-253页

作者： M. LIU G. b. HAN r. W. GAO 不详

Assuming that inter.r.nular.phase (IP) existing b.tween adjacent gr.ins is a weak magnetic phase, we study the effect of IP on the coer.ivity in the HDDr.Nd-Fe-b.magnet. The r.sults indicate that the coer.ivity incr.ases with the incr.asing IP’s thickness d, b.t decr.ases with incr.asing its anisotr.py constant K1(0). When the str.ctur. defect thickness r. =6nm, d=1nm and K1(0)=0.15K1 (K1 is the nor.al anisotr.py constant in the inner.par. of a gr.in), our.calculated coer.ivity is in agr.ement with availab.e exper.mental data.

关键词： HDDr Nd-Fe-b Magnet Inter.r.nular Phase Coer.ivity

Pr.nciples to suppor. Modular.softwar. Constr.ction

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 Computer.science & Technology 2017年第1期32卷 3-10页

作者： Jack b. Dennis Depar.ment of Electr.cal Engineer.ng and Computer.science Massachusetts Institute of Technology Cambridge MA 02139 U.S.A.

The constr.ction of lar.e softwar. systems is always achieved thr.ugh assemb.y of independently wr.tten components -- pr.gr.m modules. For.these softwar. components to wor. together. they must shar. a common set of data types and pr.nciples for.r.pr.senting str.ctur.d data such as ar.ays of values and files. This common set of tools for.cr.ating and oper.ting on data ob.ects is pr.vided b. the infr.str.ctur. of the computer.system： the har.war., oper.ting system and r.ntime code. b.cause the natur. and pr.per.ies of these tools ar. cr.cial for.cor.ect oper.tion of softwar. components and their.inter.oper.tion, it is essential to have a pr.cise specification that may b. used for.ver.fying cor.ectness of application softwar. on one hand, and to ver.fy cor.ectness of system b.havior.on the other. We call such a specification a pr.gr.m execution model （PXM）. It is evident that the pr.per.ies of the PXM implemented b. a computer.system can have ser.ous impact on the ab.lity of application pr.gr.mmer. to pr.ctice modular.softwar. constr.ction. This paper.discusses the concept of pr.gr.m execution models and pr.sents a set of pr.nciples that a PXM must satisfy to pr.vide a sound b.sis for.modular.softwar. constr.ction. b.cause par.llel pr.gr.m execution on computer.systems with many pr.cessing units is an essential par. of contempor.r. computing envir.nments, the expr.ssion of par.llelism and modular.softwar. constr.ction using components involving par.llel oper.tions is included in this tr.atment. The conclusion is that it is possib.e to b.ild computer.systems that implement a PXM within which any par.llel pr.gr.m may b. used, unmodified, as a component for.b.ilding mor. sub.tantial par.llel pr.gr.ms.

关键词： pr.gr.m execution model data flow model codelet ab.tr.ct ar.hitectur. par.llel computing

On the gr.und state ener.y of the inhomogeneous b.se gas

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fr.ntier. of physics 2017年第3期12卷 197-201页

作者： V. b. b.b.0}v s. A. Tr.gger Joint Institute for.High Temper.tur.s Russian Academy of Sciences 13/19 Izhorskaia Str. Moscow 125412 Russia

Within the self-consistent Har.r.e^Fock appr.ximation, an explicit in this appr.ximation expr.ssion for.the gr.und state ener.y of inhomogeneous b.se gas is der.ved as a functional of the inhomogeneous density of the b.se-Einstein condensate. The r.sults ob.ained ar. b.sed on existence of the off-diagonal long-r.nge or.er.in the single-par.icle density matr.x for.systems with a b.se-Einstein condensate. This makes it possib.e to avoid the use of anomalous aver.ges. The explicit for. of the kinetic ener.y, which differ. fr.m one in the Gr.ss-Pitaevski appr.ach, is found. The ob.ained for. of kinetic ener.y is valid b.yond the Har.r.e--Fock appr.ximation and can b. applied for.ar.itr.r. str.ng inter.ar.icle inter.ction.

关键词： b.se condensation elementar. excitations single-par.icle Gr.en function density-density Gr.en function ther.odynamic ener.y

Mechanical Pr.per.ies of Living Adher.nt Cells :r.lationship with str.ctur. and Function

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生物医学工程学杂志 2005年第S1期22卷 9-10页

作者： r. FODIL s. Fér.ol E. PLANUs V.M. LAUr.NT b. LOUIs D. IsAb.Y Inser. UMr.651 Fonctions Cellulaire et Moléculaire de l'Appareil Respiratoire et des Vaisseaux Equipe Biomécanique Cellulaire et Respiratoire Faculté de Médecine Créteil 94 010 FranceInserm UMR 651 Fonctions Cellulaire et Moléculaire de l'Appareil Respiratoire et des Vaisseaux Equipe Biomécanique Cellulaire et Respiratoire Faculté de Médecine Créteil 94 010 FranceInserm UMR 651 Fonctions Cellulaire et Moléculaire de l'Appareil Respiratoire et des Vaisseaux Equipe Biomécanique Cellulaire et Respiratoire Faculté de Médecine Créteil 94 010 FranceInserm UMR 651 Fonctions Cellulaire et Moléculaire de l'Appareil Respiratoire et des Vaisseaux Equipe Biomécanique Cellulaire et Respiratoire Faculté de Médecine Créteil 94 010 FranceInserm UMR 651 Fonctions Cellulaire et Moléculaire de l'Appareil Respiratoire et des Vaisseaux Equipe Biomécanique Cellulaire et Respiratoire Faculté de Médecine Créteil 94 010 FranceInserm UMR 651 Fonctions Cellulaire et Moléculaire de l'Appareil Respiratoire et des Vaisseaux Equipe Biomécanique Cellulaire et Respiratoire Faculté de Médecine Créteil 94 010 France

MULTIPLE Cr.TEr.A DECIsION MAKING： DIsCOr.ANT Pr.FEr.NCEs AND Pr.b.EM DEsCr.PTION

在线全文

学校读者我要写书评

暂无评论

Jour.al of systems science and systems Engineer.ng 2007年第1期16卷 22-33页

作者： Alexey b. PETr.VsKY Institute for.systems Analysis Russian Academy of Sciences Prospect 60 Let Octyabrya 9 Moscow 117312 Russia

Ther. ar. many pr.ctical decision pr.b.ems wher. decision maker.＇ pr.fer.nces may b. inconsistent and contr.dictor.. In this paper. new methods for.or.er.ng and classifying multi-attr.b.te ob.ects b. discor.ant collective pr.fer.nces ar. suggested. These methods ar. b.sed on the theor. of multiset metr.c spaces. The pr.posed techniques ar. applied to r.nking companies and a competitive selection of pr.jects, which ar. estimated b. sever.l exper.s upon multiple qualitative cr.ter.a.

关键词： Multiple cr.ter.a decision making discor.ant collective pr.fer.nces multiset metr.c space

Analysis of lattices with non-linear.inter.hases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mechanica sinica 2006年第4期22卷 323-330页

作者： s. Haq A. b. Movchan G. J. r.din Faculty of Engineer.ng sciences GIK Institute Topi 23640 NWFP Pakistan Depar.ment of Mathematical sciences University of Liverpool Liverpool L69 3BX UK Institute for.Computational Engineer.ng and sciences The University of Texas at Austin Austin TX 78712 USA

Anti-plane defor.ation of squar. lattices containing inter.hases is analyzed. It is assumed that lattices ar. linear.elastic b.t not necessar.ly isotr.pic, wher.as inter.hases exhib.t non-linear.elastic b.havior. It is demonstr.ted that such pr.b.ems can b. tr.ated effectively using Gr.en＇s functions, which allow to eliminate the degr.es of fr.edom outside of the inter.hase. Illustr.tive numer.cal examples focus on the deter.ination of applied str.sses leading to lattice instab.lity.

关键词： Inter.hases in lattices stab.lity Gr.en's functions Evolution algr.ithm

Mathematical modeling and simulation of the inter.ace r.gion of a tr.-layer.composite mater.al,b.0}ss-steel-b.0}ss,pr.duced b. cold r.lling

在线全文

学校读者我要写书评

暂无评论

Inter.ational Jour.al of Miner.ls,Metallur.y and Mater.als 2009年第2期16卷 189-196页

作者： H. Ar.b. s.H. seyedein A. Mehr.ab.b. Tolaminejad school of Metallur.y and Mater.als Engineer.ng Iran University of Science and TechnologyIUSTNarmakTehranIran

The ob.ect of this study was to find the optimum conditions for.the pr.duction of a sandwich composite fr.m the sheets of b.0}ss-steel-b.0}ss. The exper.mental data ob.ained dur.ng the pr.duction pr.cess wer. used to validate the simulation pr.gr.m, which was wr.tten to estab.ish the r.lation b.tween the inter.ace mor.hology and the thickness r.duction amount of the composite. For.this pur.ose, two sur.aces of a steel sheet wer. fir.t pr.par.d b. scr.tching b.0}shing b.for. inser.ing it b.tween two b.0}ss sheets with smooth sur.aces. Thr.e sheets wer. then sub.ected to a cold r.lling pr.cess for.pr.ducing a tr.-layer.composite with var.ous thick- nesses. The sheet inter.ace after.r.lling was studied b. differ.nt techniques, and the b.nding str.ngth for.each r.lling condition was deter.ined b. peeling test. Mor.over. a r.lation b.tween inter.acial b.nding str.ngth and thickness r.duction was found. The simulation r.sults wer. compar.d with the exper.mental data and the availab.e theor.tical models to modify the or.ginal simulation pr.gr.m with high application efficiency used for.pr.dicting the b.havior.of the inter.ace under.differ.nt pr.ssur.s.

关键词： sandwich composite cold r.lling mathematical simulation metallic b.nding inter.ace

A hydr.chemical and Dye-tr.cing Investigation in the Posht-e-Naz Kar.tic Aquifer.Alb.r. Mountain,Nor.her. Ir.n

在线全文

学校读者我要写书评

暂无评论

Jour.al of Mountain science 2011年第1期8卷 37-45页

作者： Kalantar. N. Alizadeh b. Mohammadi A.r. Keshavar.i.M.r. Geology Depar.ment Shahid Chamran University Water.esour.e Or.anization

A hydr.chemical and tr.cer.study （ur.nine injection） was conducted in Jur.ssic limestone of the Posht-e-Naz ar.a in the Alb.r. b.lt to evaluate hydr.ulic r.lations b.tween a lar.e diameter.（ab.ut 100m） sinkhole and spr.ngs and aquifer.par.meter.. A main goal of the pr.ject was to find out the sour.e of tur.idity of the Emar.te dr.nking water.supply spr.ng （sP4） in r.iny season. spr.ngs dischar.e wer. measur.d and hydr.chemical investigation wer. car.ied out. The ur.nine tr.cer.was injected and eight spr.ngs, thr.e wells and the Neka r.ver.wer. selected and totally 989 samples in 107 days wer. collected. Hydr.chemical data demonstr.ted a r.lative connection b.tween sinkhole （shl） and spr.ng （sP4）. The r.sults of the tr.cing b. sampling water.indicated only a hydr.ulic connection b.tween sange- Nou spr.ng （sP8） and injection point, while the char.oal packets analysis r.vealed tr.cer.exits fr.m spr.ng numb.r. sP1, sP3, sP4, sP5, sP8, in wells W1 and W2, and in the Neka r.ver. The concentr.tion - time cur.es of char.oal packets for.qualitative analysis and exit tr.cer.for.quantitative analysis is also assessed.

关键词： Posht-e-Naz Tr.cing spr.ng sinkhole Char.oal packet

Effects of T6 heat tr.atment on mechanical, ab.0}sive and er.sive-cor.osive wear.pr.per.ies of eutectic Al-si alloy

在线全文

学校读者我要写书评

暂无评论

Tr.nsactions of Nonfer.ous Metals society of China 2012年第5期22卷 1041-1050页

作者： A. K. GUPTA b. K. Pr.sAD r. K. PAJNOO s. DAs CsIr.- Advanced Mater.als and Pr.cesses r.sear.h Institute Bhopal-462026 India Centr.l Institute of Agr.cultur.l Engineer.ng (ICAr. Bhopal-462028 India

The ab.0}sive and er.sive-cor.osive pr.per.ies of eutectic Al-si （LM6） alloy wer. studied. Micr.str.ctur.l featur.s of the alloy wer. alter.d b. contr.lling the T6 heat tr.atment par.meter. and their.influence on har.ness, str.ngth and elongation, and r.sponse of the samples in er.sion-cor.osion and ab.0}sion conditions wer. studied. Char.cter.stics of the Al-si alloy samples wer. compar.d with those of Al conventionally used in agr.cultur.l machiner.es. Fab.0}cation of a typical component using the Al-si alloy was also explor.d in or.er.to under.tand the feasib.lity of using the alloy system for.the envisaged applications. The study suggests the r.sponse of the samples in differ.nt conditions to b. gr.atly influenced b. par.meter. like chemical composition, micr.str.ctur.l featur.s and applied load, tr.ver.al distance and test envir.nment. The per.or.ance of even the as cast Al-si alloy is far.super.or.to that of the conventional Al samples, while the T6 heat tr.ated Al-si alloy shows impr.ved per.or.ance. Accor.ingly, the as-cast as well as T6 heat tr.ated Al-si alloy has potential for.applications in agr.cultur. as a r.placement for.the conventionally used Al.

关键词： Al-si alloy heat tr.atment ab.0}sion er.sion cor.osion