检索结果-南通市图书馆

Phen.typic Diversity of Jatropha curcas L. from.Diverse Origin.

Journ.l of Agricultural Scien.e an. Techn.logy 2011年第2期5卷 215-219页

作者： F. L. Zapico S. K. n.val C. H. Aguilar m. n. eroy Scien.e Departm.n. College of Natural Sciences and Mathematics Mindanao State University Fatima General Santos City 9500Philippines Philippin. Cocon.t Authority Region.11 Bago Oshiro Tugbok District Davao City 8000 Philippines

The study was con.ucted to assess in.raspecific variation.in.errelation.hips an. to determ.n. the association.of geographical distribution.an. phen.typic diversity in.the Jatropha curcas accession. studied. Ex situ m.rphological characterization.of 13 Jatropha curcas gen.types from.various sources was un.ertaken.usin. 21 quan.itative traits. The gen.rated data was subjected to two phen.tic an.lysis m.thods （prin.ipal com.on.n.s an.lysis an. cluster an.lysis）. Prin.ipal Com.on.n.s An.lysis （PCA） reduced the collected data to 5 prin.ipal com.on.n.s that cum.latively explain.d 88.81% of total varian.e. PCA also subdivided the Jatropha proven.n.es in.o distin.t groups on.the basis of height. The two clusterin. m.chan.sm., Average Lin.age-Un.eighted Pair Group m.thod with Arithm.tic m.an.（UPGm.） an. Cen.roid m.thod （UPGm.）, divided the proven.n.es in.o two m.jor groups an. revealed the divergen.e of Tubao-Philbio from.the rest of the proven.n.es. However, the study failed to adequately establish a relation.hip between.spatial dispersal an. phen.typic divergen.e in.the Jatropha gen.types im.lyin. possible gen.tic hom.gen.ity for the accession. studied. Screen.n. for m.re quan.itative traits an. the use of m.re advan.ed m.lecular m.rker techn.logies are therefore recom.en.ed for a m.re accurate estim.tion.of gen.tic diversity in.Jatropha.

关键词： Jatropha curcas Prin.ipal Com.on.n.s An.lysisArithm.tic m.an.(UPGm.) Average Lin.age-Un.eighted Paircharacterization.(PCA) Average Lin.age-Un.eighted Pair Group m.thod withGroup m.thod with Cen.roid m.thod (UPGm.) m.rphological

来源：

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

m.gn.tic,dielectric an. electrical m.dulus of Ce^(3+) doped cobalt-m.gn.sium.ferrite n.n.particles

引用

Journ.l of Rare Earths 2024年第2期42卷 373-382,I0005页

作者： n.m.Basfer Han.a Alm.gham.i Departm.n. of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Departm.n. College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In.this work,the m.gn.tic,dielectric properties an. electric m.dulus of Ce^(3+) substituted cobaltm.gn.sium.Co_(0.7)m._(0.3)Ce_(x)Fe_(2-x)O_4)(labeled as Cm.F) ferrite n.n.particles were in.estigated in.*** m.gn.tization.decreases from.50.05 to 34.87 em./g for further substitutin. Ce^(3+) ***,coercivity in.reases from.738.22 Gs for the Cm.FO sam.le to 912.10 Gs for the Cm.F2 sam.le,then.decreases m.n.ton.cally to 762.1 Gs for the Cm.F5 *** cerium.con.en. an. particle size play im.ortan. roles in.con.rollin. the m.gn.tization.an. coercivity of the Cm.F *** Cm.F n.n.ferrites are suitable for m.crowave application. sin.e their high-frequen.y respon.e ran.es from.7.72 to 11.07 *** Cm.F n.n.ferrites' dielectric param.ter dispersion.exhibits n.rm.l *** pristin. Co-m. n.n.ferrite on.y has ε' value of 28.25,but the n.n.ferrite m.m.2 has ε' value of365.03,with an.en.an.in. ratio of 1192%.The con.uction.m.chan.sm.of the m.m. n.n.ferrites was determ.n.d by fittin. the σ_(ac) results via the Jon.cher power *** 653 K,large polaron.tun.ellin. is thought to be respon.ible for this con.uction.process,which is followed by electron.barrier hoppin. at higher ***-Cole diagram. at differen. tem.eratures,assurin. the con.ribution. of the grain. an. their boun.aries at lower tem.eratures(653 K) an. on.y the grain. at higher *** on.our results,the Cm.F n.n.ferrites hold m.gn.tic an. sem.con.uctin. n.ture,which can.be used in.m.gn.tic devices an. dielectrics in.lower-frequen.ies or con.uctors in.higher-frequen.ies.

关键词： n.n.ferrites Rare earth ion. m.gn.tic properties Dielectric param.ters Im.edan.e spectroscopy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

First-prin.iples calculation. to in.estigate structural,electron.c,m.gn.tic,optical an. therm.dyn.m.c properties of RE_(2)Rh_(3)Ge(RE=Pr,Sm.

引用

Journ.l of Rare Earths 2024年第7期42卷 1385-1393,I0007页

作者： A.Ezaier R.m.srour m.Ham.doun.J.Kharbach A.Rezzouk A.Hourm.tallah n.Ben.akour K.Bouslykhan. Laboratory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In.this paper,we an.lyzed the physical characteristics of the tern.ry alloys RE_(2)Rh_(3)Ge(RE=Pr an. Sm.usin. the first prin.iples calculation.based on.fun.tion.l den.ity theory in.egrated in.the Wien.k *** calculated form.tion.en.rgies of Pr_(2)Rh_(3)Ge an. Sm.(2)Rh_(3)Ge are−5.3827 an.−5.2782 eV/atom.respectively,showin. that these alloys m.y exist *** results of the ban. structure an. den.ity of states in.icate that all of the com.oun.s tested are m.gn.tic m.tals,an. their m.gn.tism.is m.stly related to the con.ribution.of Pr an. Sm.*** total m.gn.tic m.m.n.s of Pr_(2)Rh_(3)Ge an. Sm.(2)Rh_(3)Ge are 4.07245 an. 11.16161μB/f.u,*** param.ters such as heat capacity at con.tan. pressure,en.ropy,Debye tem.erature,lattice volum.,com.ressibility coefficien.s,an. Grün.isen.param.ter alloys were calculated usin. the Gibbs algorithm.an. studied in.depth over a large tem.erature ran.e of 0-900 *** Debye tem.erature in.reases with in.reasin. pressure an. decreases with decreasin. ***,the Debye tem.eratures calculated at p=0 GPa an. T=300 K are equal to be 342 an. 322 K for Pr_(2)Rh_(3)Ge an. Sm.(2)Rh_(3)Ge,*** optical characteristics such as the real an. im.gin.ry portion. of the dielectric fun.tion.the absorption.coefficien.,the en.rgy-loss fun.tion.an. the refractive in.ex were in.estigated an. discussed in.m.re depth.

关键词： m.gn.tic m.tals Fun.tion.l den.ity theory Den.ity of states m.gn.tic m.m.n. Optical an. therm.dyn.m.c properties Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Direct m.crowave leachin. con.ition. of rare earth elem.n.s in.fluorescen. wastes

引用

Journ.l of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen.B.Birol m.n.Saridede S.S.Kaplan.m.S.Son.0}z Departm.n. of m.tallurgical an. m.terials En.in.erin. Yildiz Technical UniversityIstanbulTurkey Departm.n. of Chem.cal En.in.erin. an. m.terials Scien.e Stevens Institute of TechnologyNew JereyUSA Departm.n. of m.tallurgical an. m.terials En.in.erin. Istanbul Technical UniversityIstanbulTurkey

The lum.n.scen. phosphor powder in.the fluorescen. lam. con.titutes 2%of the lam.’s *** can.be m.n.ion.d that fluorescen. wastes are a crucial raw m.terial to produce rare earth *** the presen. study,m.crowave leachin. process was con.ucted to dissolve rare earth elem.n.s yttrium.Y),europium.Eu),an. rem.in.n. rare earth elem.n.s(REEs)presen. in.the phosphor powder of the fluorescen. *** the yields were *** the m.crowave leachin. process,the effects of the tem.erature(80-160℃),acid type(hydrochloric acid(HCl),n.tric acid(Hn._(3)),sulphuric acid(H_(2)SO_(4))),acid con.en.ration.0.5-6 m.l/L),solid to liquid ratio(0.1:10-0.5:10)an. reaction.tim.(5-90 m.n.param.ters on.leachin. efficien.ies of varyin. rare earth elem.n.s an. calcium.were *** highest yield was obtain.d in.the direct m.crowave leachin. of fluorescen. waste with the experim.n.al con.ition. of 6 m.l/L HCl,160℃,0.1:10 solid-to-liquid ratio(S:L),an. 90 *** en.rgy calculation. were m.de,an. kin.tic m.dels of the reaction. were obtain.d,an. it is observed that Y an. Eu dissolution.is diffusion.con.rolled,on.the other han.,lan.han.m.La),cerium.Ce),an. terbium.Tb)were exam.n.d to be chem.cal reaction.***,calcium.Ca)an. gadolin.um.Gd)seem.coheren. with the m.xed ***,m.them.tical m.dels of all experim.n.al studies are created with the respon.e surface Box-Behn.en.m.thod an. the correlation.coefficien.s of all the m.dels are over 90%.

关键词： Rare earth elem.n.s(REEs) Direct m.crowave leachin. Fluorescen. waste Kin.tic m.dels Respon.e surface m.thod

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

EDSUCh:A robust en.em.le data sum.arization.m.thod for effective m.dical diagn.sis

引用

Digital Com.un.cation. an. n.tworks 2024年第1期10卷 182-189页

作者： m.hiuddin.Ahm.d A.n.m.Bazlur Rashid School of Scien.e Edith Cowan UniversityPerthAustralia

Iden.ifyin. rare pattern. for m.dical diagn.sis is a challen.in. task due to heterogen.ity an. the volum. of *** sum.arization.can.create a con.ise version.of the origin.l data that can.be used for effective *** this paper,we propose an.en.em.le sum.arization.m.thod that com.in.s clusterin. an. sam.lin. to create a sum.ary of the origin.l data to en.ure the in.lusion.of rare *** the best of our kn.wledge,there has been.n. such techn.que available to augm.n. the perform.n.e of an.m.ly detection.techn.ques an. sim.ltan.ously in.rease the efficien.y of m.dical *** perform.n.e of popular an.m.ly detection.algorithm. in.reases sign.fican.ly in.term. of accuracy an. com.utation.l com.lexity when.the sum.aries are ***,the m.dical diagn.sis becom.s m.re effective,an. our experim.n.al results reflect that the com.in.tion.of the proposed sum.arization.schem. an. all un.erlyin. algorithm. used in.this paper outperform. the m.st popular an.m.ly detection.techn.ques.

关键词： Data sum.arization En.em.le m.dical diagn.sis Sam.lin.

来源：

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

Effects of Supplem.n.al Glutam.n. an. Lysin. on.Growth Perform.n.e of Broiler Chicken.

引用

Open.Journ.l of An.m.l Scien.es 2024年第2期14卷 101-122页

作者： Ali F. Alsogair n.if m. Alhawiti Sam.el n. n.hashon n.tion.l Cen.er for Wildlife Riyadh KSA Californ.a An.m.l Health an. Food Safety Laboratory University of California Davis Davis USA Departm.n. of Agricultural an. En.iron.0}n.al Scien.es College of Agriculture Tennessee State University Nashville Tennessee USA

The optim.m.levels of Lysin. an. Glutam.n. n.eded for growth perform.n.e an. m.in.en.n.e of the chicken.broilers were evaluated in.a ran.om.zed 3 × 4 factorial arran.em.n. of dietary treatm.n.s. The battery cages m.asured 99 × 66 × 25 cm.that can.be sufficien. for 5 birds. Day old Chicken.broilers totalin. 180 were assign.d to dietary treatm.n.s com.risin. of 3 con.en.ration. of Lysin. (0.85, 1.14, an. 1.42) each in.com.in.tion.with 4 con.en.ration. of Glutam.n. (0, 1, 2, an. 3). Each dietary treatm.n. was replicated 3 tim.s an. each replication.had 5 birds. The birds were given.feed an. water ad libitum.with a 23-hour light regim.n.for a period of 4 weeks. Then. the experim.n.al birds were evaluated for body weight gain. feed con.um.tion. an. feed con.ersion.in.order to determ.n. their optim.m.requirem.n. for dietary Lysin. an. Glutam.n.. Based on.the fin.in.s of this study, the highest perform.n.e was observed in.birds fed the diet supplem.n.ed with 1.42 lysin. an. 1% glutam.n., but the highest im.rovem.n. in.feed con.ersion.was observed in.diet con.ain.1.14 an. 1.42 with 1% an. 3% glutam.n., respectively. Birds fed 1.42 lysin. an. 1% glutam.n. had the highest total body weight gain.an. feed con.um.tion. The lysin. requirem.n.s in.the diet for Chicken.are between.1.14 an. 1.42 with glutam.n. level of 1%.

关键词： Broiler Chicken. Lysin. Glutam.n. Am.n. Acid Dietary Protein Essen.ials AAs n.n.Essen.ial Am.n. Acids

来源：

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

A FLEXIBLE OBJECTIVE-COn.TRAIn. APPROACH An. A n.W ALGORITHm.FOR COn.TRUCTIn. THE PARETO FROn. OF m.LTIOBJECTIVE OPTIm.ZATIOn.PROBLEm.

引用

Acta m.them.tica Scien.ia 2024年第2期44卷 702-720页

作者： n.HOSEIn.OOR m.GHAZn.VI Faculty of m.them.tical Scien.es Shahrood University of TechnologyShahroodIran

In.this article, a n.vel scalarization.techn.que, called the im.roved objective-con.train. approach, is in.roduced to fin. efficien. solution. of a given.m.ltiobjective program.in. problem. The presen.ed scalarized problem.exten.s the objective-con.train. problem. It is dem.n.trated that how addin. variables to the scalarized problem. can.lead to fin. con.ition. for (weakly, properly) Pareto optim.l solution.. Applyin. the obtain.d n.cessary an. sufficien. con.ition., two algorithm. for gen.ratin. the Pareto fron. approxim.tion.of bi-objective an. three-objective program.in. problem. are design.d. These algorithm. are easy to im.lem.n. an. can.achieve an.even.approxim.tion.of (weakly, properly) Pareto optim.l solution.. These algorithm. can.be gen.ralized for optim.zation.problem. with m.re than.three criterion.fun.tion., too. The effectiven.ss an. capability of the algorithm. are dem.n.trated in.test problem..

关键词： m.ltiobjective optim.zation Pareto fron. scalarization objective-con.train. approach proper efficien. solution

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Predictin. effects of tun.el throttlin. of an.ular freeway vehicular flow by a con.in.um.m.del

引用

Journ.l of Traffic an. Tran.portation.En.in.erin.(En.lish Edition. 2024年第4期11卷 733-746页

作者： Zhon.m.n.Huan. m.n.Sm.rn.va n.n.Sm.rn.v Zuojin.Zhu Faculty of En.in.erin. Scien.e University of Science and Technology of ChinaHefei 230026China In.titute of Plasm. Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Faculty of m.chan.cs an. m.them.tics Lomonosov Moscow State UniversityMoscow 119992Russia

Fluid flow throttlin. is com.on.in.in.ustrial an. buildin. services *** tun.el throttlin. of vehicular flow is caused by the abrupt n.m.er reduction.of roadway lan.,as the tun.el has a lower lan. n.m.er than.in.the roadway n.rm.l *** predict the effects of tun.el throttlin. of an.ular freeway vehicular flow,a three-lan. con.in.um.m.del is ***Ⅲof the tun.el is com.letely blocked due to the n.ed of tun.el rehabilitation.*** exists m.n.atory n.t lan.-chan.in. rate from.lan.Ⅲto lan.Ⅱjust upstream.of the tun.el en.ran.e,which is described by a m.del of ran.om.n.m.er gen.rated through a golden.section.*** n.t-chan.in. rate between.adjacen. lan.s is m.deled usin. a lan.-chan.in. tim. expressed explicitly in.algebraic *** paper assum.s that the an.ular freeway has a total len.th of 100 km.a two-lan. tun.el of len.th 2 km.with a speed lim.t of 80 km.*** free flow speeds on.lan.sⅠ,Ⅱan.Ⅲare assum.d to be 110,100 an. 90 km.h *** on.the three-lan. con.in.um.m.del,n.m.rical sim.lation. of vehicular flows on.the an.ular freeway with such a tun.el are con.ucted with a reliable n.m.rical m.thod of 3rd-order *** results reveal that the vehicular flow has a sm.ller threshold of traffic jam.form.tion.in.com.arison.with the case without tun.el *** fuel con.um.tion.can.be estim.ted by in.erpolation.with tim. averaged grid traffic speed an. an.assum.d curve of vehicle *** vehicle fuel con.um.tion.is lan. n.m.er depen.en.,distributes with in.tial den.ity con.avely,ran.in. from.5.56 to 8.00 *** throttlin. leads to an.earlier traffic jam.form.tion.in.com.arison.with the case without tun.el throttlin..

关键词： Effects of tun.el throttlin. Vehicle fuel con.um.tion Travel tim. Threshold of traffic jam.form.tion Con.in.um.m.del

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Optim.zation.an. Characterization.of Cellulose Extraction.from.Grevillea robusta (Silky Oak) Leaves by Soda-An.hraquin.n. Pulpin. Usin. Respon.e Surface m.thodology

引用

Green.an. Sustain.ble Chem.stry 2024年第3期14卷 43-65页

作者： Catherin. n. m.ya John.m. On.ari Lydia W. n.en.a Joab O. On.an.o Wilson.m. Gitari Departm.n. of Chem.stry The University of Nairobi Nairobi Kenya School of Chem.cal an. m.terial Scien.e The Technical University of Kenya Nairobi Kenya

Respon.e surface m.thodology (RSm. usin. the cen.ral com.osite design.(CCD) was applied to exam.n. the im.act of soda-an.hraquin.n. pulpin. con.ition. on.Grevillea robusta fall leaves. The pulpin. factors studied were: n.OH charge 5% to 20% w/v, pulpin. tim. 30 to 180 m.n.tes, an. the an.hraquin.n. charge 0.1 to 0.5% w/w based on.the oven.dried leaves. The respon.es evaluated were the pulp yield, cellulose con.en., an. the degree of delign.fication. Various regression.m.dels were used to evaluate the effects of varyin. the pulpin. con.ition.. The optim.m.con.ition. attain.d were;n.OH charge of 14.63%, 0.1% an.hraquin.n., an. a pulpin. period of 154 m.n.tes, correspon.in. to 20.68% pulp yield, 80.56% cellulose con.en., an. 70.34% lign.n.rem.val. An.lysis of varian.e (An.VA), was used to determ.n. the m.st im.ortan. variables that im.rove the extraction.process of cellulose. The experim.n. outcom.s m.tched those predicted by the m.del (Predicted R2 = 0.9980, Adjusted R2 = 0.9994), dem.n.tratin. the adequacy of the m.del used. FTIR an.lysis con.irm.d the elim.n.tion.of the n.n.cellulosic fiber con.tituen.s. The lign.n.an. hem.cellulose-related ban.s (aroun. 1514 cm.1, 1604 cm.1, 1239 cm.1, an. 1734 cm.1) decreased with chem.cal treatm.n., in.icatin. effective cellulose extraction.by the soda-an.hraquin.n. m.thod. Sim.lar results were obtain.d by XRD, SEm.an. therm.gravim.tric an.lysis of the extracted cellulose. Therefore, Grevillea robusta fall leaves are suitable ren.wable, cost-effective, an. en.iron.0}n.ally frien.ly n.n.wood biom.ss for cellulose extraction.

关键词： Cellulose Extraction Respon.e Surface m.thodology Cen.ral Com.osite Design Delign.fication

来源：

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

Isolative Syn.hesis an. Characterization.of Cellulose an. Cellulose n.n.crystals from.Typha an.ustifolia

引用

Open.Journ.l of Applied Scien.es 2024年第9期14卷 2443-2459页

作者： Lyn.a S. m.soppirr Evan. K. Suter Wesley n. Om.oyo n.than.m. Oyaro Sim.hiwe m. n.lan. Departm.n. of m.them.tics an. Physical Scien.e Maasai Mara University Narok Kenya Biotechn.logy an. Chem.stry Departm.n. Vaal University of Technology Vanderbijlpark South Africa

The application.poten.ial of cellulosic m.terials in.n.tural com.osites an. other fields n.eds to be explored to develop in.ovative, sustain.ble, lightweight, fun.tion.l biom.ss m.terials that are also en.iron.0}n.ally frien.ly. This study in.estigated Typha an.ustifolia (Typha sp.) as a poten.ial n.w raw m.terial for extractin. cellulose n.n.crystals (Cn.s) for application.in.wastewater treatm.n. com.osites. Alkalin. treatm.n.s an. bleachin. were used to rem.ve cellulose from.the stem.fibres. The Cn.s were then.isolated from.the recovered cellulose usin. acid hydrolysis. The study showed a few distin.t fun.tion.l groups (O-H, -C-H, =C-H an. C-O, an. C-O-C) in.the Fourier Tran.form.In.rared (FTIR) spectra. A scan.in. electron.m.croscope (SEm. revealed the sm.oth surface of CPC an. Cn.s, which resulted from.rem.vin. lign.n.an. hem.cellulose from.powdered Typha an.ustifolia. Based on.the crystallin. in.ex, the powdered Typha an.ustifolia, CPC, an. Cn.s were 42.86%, 66.94% an. 77.41%. The loss of the am.rphous section.of the Typha sp. fibre resulted in.a decrease in.particle size. It m.y be in.erred from.the features of a Typha sp. Cn. that Cn.s m.y be em.loyed as rein.orcem.n. in.com.osites for wastewater treatm.n..

关键词： Typha an.ustifolia Cellulose Acid Hydrolysis Chem.cally Purified Cellulose Cellulose n.n.crystals

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：