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Acta Metallur.ica sinica(English Letter.) 2021年第2期34卷 265-277页

作者： L.b.Tong J.H.Chu D.N.Zou Q.sun s.Kamado H.G.b.0}kmeier.M.Y.Zheng school of Metallur.ical Engineer.ng Xi'an University of Architecture and TechnologyXi'an 710055China school of Mater.als science and Engineer.ng.Har.in Institute of Technology Harbin 150001China College of Mater.als science and Engineer.ng.Jilin Univer.ity Changchun 130025China Depar.ment of Mechanical Engineer.ng Nagaoka University of TechnologyNagaoka 940-2188Japan Institute of Mater.als science and Engineer.ng Clausthal University of TechnologyAgricolastrasse 638678 Clausthal-Zellerfeld.Germany

In this study,the mechanical pr.per.ies and damping capacities of cast Mg-5.5 Zn-0.6 Zr.weight per.ent,ZK60)alloys have b.en simultaneously impr.ved b. a facile multi-dir.ctional for.ing(MDF)pr.cessing,and the mechanisms of micr.str.ctur. evolution and textur. modification ar. systematically *** activation of tension twinning occur. dur.ng the initial MDF stage,due to the coar.e-gr.ined str.ctur. of the as-cast *** incr.asing MDF passes,the continuous dynamic r.cr.stallization(CDr.)r.sults in a fine equiaxed-gr.in *** typical non-b.sal textur. is for.ed in the as-MDFed alloy for.6 passes,with the(0001)planes inclined 60°–70°to for.ed dir.ction and 10°–20°to tr.nsver.e dir.ction,r.spectively.A good b.lance b.tween the str.ngth(~194.9 MPa)and ductility(~24.9%)has b.en achieved,which can b. ascr.b.d to the gr.in r.finement,non-b.sal textur. and fine pr.cipitate *** damping capacity is r.mar.ab.y impr.ved after.MDF pr.cessing,b.cause the sever. defor.ation incr.ases the dislocation density,which effectively enlar.es the sweep ar.as of mob.le dislocations.

关键词： Mg alloy Multi-dir.ctional for.ing Micr.str.ctur. Textur. evolution Mechanical pr.per.ies Damping capacity

Analytical analysis of inclined thr.e-layer.d composite channel with cob.lt fer.ite nanopar.icles and Hall cur.ent in Dar.y medium

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Pr.pulsion and Power.r.sear.h 2023年第4期12卷 523-538页

作者： P.V.Ananth sub.0}y b.N.Hanumagowda C.s.K.r.ju s.V.K.Var.a Pr.kash Jagdish se-Jin Yook Nehad Ali shah Depar.ment of Mathematics School of Applied SciencesREVA UniversityBengaluruKarnatakaIndia school of Mechanical Engineer.ng Hanyang University222 Wangsimni-roSeongdong-guSeoul 04763Republic of Korea Depar.ment of Mechanical Engineer.ng science Faculty of Engineering&The Built EnvironmentUniversity of JohannesburgSouth Africa Depar.ment of Mechanical Engineer.ng Sejong UniversitySeoul 05006Republic of Korea

The pr.sent study explor.s the influence of electr.magnetic effects on the flow of a nanofluid in a satur.ted per.eab.e medium,confined b.tween a clear.viscous fluid in an inclined *** nanofluid consists of cob.lt fer.ite nanopar.icles disper.ed in ethylene *** gover.ing equations ar. der.ved consider.ng Dar.y's law for.the per.eab.e medium and Tiwar.'s model for.fluids containing nano-sized ***,r.diation and dissipation effects ar. incor.or.ted into the ener.y *** equations ar. tr.nsfor.ed into dimensionless for. and solved analytically using the per.ur.ation *** r.sults ar. analyzed thr.ugh gr.phs and tab.es for.differ.nt mater.al *** findings r.veal that higher.electr.c and magnetic str.ngths have a significant impact on the fluid velocity at the inter.ace of the two fluids,r.sulting in r.duced shear.b.th at the clear.fluid sur.ace and the inter.ace b.tween *** highlights the cr.cial r.le played b. electr.c and magnetic str.ngths in modifying flow ***,comb.ning electr.c and magnetic str.ngths with nanofluids can b. utilized to achieve desir.d qualities in multi-fluid flow and enhance heat tr.nsfer.char.cter.stics.

关键词： Thr.e-layer.d flow Inclined composite channel Electr.magnetic field Nanofluid Por.us r.gion

Ver.fication of a lab.r.tor.-b.sed dilation model for.in situ conditions using continuum models

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Jour.al of r.ck Mechanics and Geotechnical Engineer.ng 2014年第6期6卷 522-534页

作者： G.Walton M.s.Dieder.chs L.r.Alejano J.Ar.úa Queen's Univer.ity Kingston Canada Univer.ity of Vigo Vigo Spain

With r.spect to constitutive models for.continuum modeling applications, the post-yield domain r.mainsthe ar.a of gr.atest uncer.ainty. r.cent studies b.sed on lab.r.tor. testing have led to thedevelopment of a numb.r.of models for.b.0}ttle r.ck dilation, which account for.b.th the plastic shear.tr.in and confining str.ss dependencies of this phenomenon. Although these models ar. useful inpr.viding an impr.ved under.tanding of how dilatancy evolves dur.ng a compr.ssion test, ther. hasb.en r.latively little wor. per.or.ed examining their.validity for.modeling b.0}ttle r.ck yield in situ. Inthis study, differ.nt constitutive models for.r.ck dilation ar. r.viewed and then tested, in the context of anumb.r.of case studies, using a continuum finite-differ.nce appr.ach （FLAC）. The uncer.ainty associatedwith the modeling of b.0}ttle fr.ctur. localization is addr.ssed, and the over.ll ab.lity of mob.lizeddilation models to r.plicate in situ defor.ation measur.ments and yield patter.s is evaluated. 2014 Institute of r.ck and soil Mechanics, Chinese Academy of sciences. Pr.duction and hosting b.Elsevier.b.V. All r.ghts r.ser.ed.

关键词： Dilation Continuum models Case studies b.0}ttle r.ck

synthesis and Char.cter.zation of Gr.phene Oxide and r.duced Gr.phene Oxide Thin Films Deposited b. spr.y Pyr.lysis Method

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Gr.phene 2016年第3期5卷 143-154页

作者： M. s. Eluyemi M. A. Eler.ja A. V. Adedeji b. Olofinjana O. Fasakin O. O. Akinwunmi O. O. Ilor. A. T. Famojur. s. A. Ayinde E. O. b. Ajayi Depar.ment of Physics and Engineer.ng Physics Obafemi Awolowo University Ile-Ife Nigeria Depar.ment of Chemistr. and Physics Elizabeth City State University Elizabeth City NC USA Depar.ment of Electr.nics and Electr.cal Engineer.ng Obafemi Awolowo University Ile-Ife Nigeria Depar.ment of Chemistr. Obafemi Awolowo University Ile-Ife Nigeria

Gr.phene Oxide (GO) was chemically synthesized fr.m Natur.l Flake Gr.phite (NFG). The GO was chemically r.duced to r.duced Gr.phene Oxide (r.O) using hydr.zine monohydr.te. Thin films of GO and r.O wer. also deposited on sodalime glass sub.tr.te using spr.y pyr.lysis technique (sPT). The samples wer. char.cter.zed using Four.er.Tr.nsfor. Infr.r.d (FTIr. spectr.scopy, scanning Electr.n Micr.scopy (sEM) with Ener.y Disper.ive X-r.y (EDs) facility attached to it, UV-Visib.e spectr.metr. and Four.Point pr.b.. The FTIr.spectr. showed the addition of oxygen functionality gr.ups in GO while such gr.ups was dr.stically r.duced in r.O. sEM micr.gr.ph of GO thin film showed a por.us sponge-like str.ctur. while the micr.gr.ph of r.O thin film showed evenly distr.b.ted and well connected gr.phene str.ctur.. The EDX spectr.m of r.O showed that ther. was decr.ase in oxygen content and incr.ase in car.on content of r.O when compar.d to GO. The optical analysis of the GO and r.O thin films gave a dir.ct ener.y b.ndgap of 2.7 eV and 2.2 eV r.spectively. The value of sheet r.sistance of GO and r.O films was deter.ined to b. 22.9 × 10sup>6sup>Ω/sq and 4.95 × 10sup>6sup>Ω/sq r.spectively.

关键词： Gr.phite Gr.phene Gr.phene Oxide Thin Films sheet r.sistance

Coar.e cor. par.icles cause a negative effect on eggshell quality of semi-heavy laying hens

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Animal Nutr.tion 2019年第4期5卷 432-434页

作者： Vanessa r.M.Oliveir. Alex M.V.Ar.uda Aur.r. s.Melo Davyd H.souza Joao b.F.souza-Junior.r.imunda T.V.Fer.andes Joao P.A.F.Queir.z Depar.ment of Animal sciences Universidade Federal Rural do Semi-AridoMossoro 59625900Brazil Depar.ment of Animal science Federal University of CearaFortalezaCEP 60455-760Brazil

One of the possib.e ways to optimize the pr.ductive per.or.ance of poultr. is thr.ugh the physical pr.cessing of ingr.dients,which can impr.ve the use of nutr.ents in these *** this context,this study was to evaluate the effects of differ.nt cor. par.icle sizes in diets on the pr.ductive per.or.ance and egg quality of semi-heavy laying *** naked neck laying hens wer. used fr.m 24 weeks of age and distr.b.ted in a completely r.ndomized *** diets in differ.nt tr.atments contained cor. gr.in gr.und into sieves with a diameter.of 2,4,or.8 mm to pr.vide cor. par.icles with a geometr.c mean diameter.GMD) of 605(fine),1,030(medium),and 2,280 μm(coar.e),*** feed and leftover. wer. weighed daily thr.ughout the exper.mental per.od to deter.ine the feed intake and feed *** cor. par.icle sizes did not affect any aspect of the pr.ductive per.or.ance of hens,except for.feed *** fed fine and medium cor. par.icles exhib.ted higher.values for.egg yolk color.eggshell weight,and eggshell *** is suggested that semi-heavy laying hens should b. fed mash diets containing cor. par.icles with GMD fr.m 605 to 1,030 μm,b.cause coar.e cor. par.icles cause a negative effect on eggshell quality.

关键词： Egg quality Geometr.c mean diameter Pr.ductive per.or.ance Poultr. nutr.tion

Pr.valence and Pr.dictor. of Depr.ssion among Adolescents in Ido Ekiti, south West Niger.a

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Inter.ational Jour.al of Clinical Medicine 2018年第3期9卷 187-202页

作者： K. O. Oder.nde M. U. Dada O. C. Ogun N. s. Awunor.b. M. Kundi H. K. Ahmed A. b. Tsuung s. T. Tanko A. A. Yusuff Depar.ment of Psychiatr. Yobe State University Teaching Hospital Damaturu Nigeria Depar.ment of Psychiatr. Ekiti State University Teaching Hospital Ado Ekiti Nigeria Child and Adolescent Psychiatr. Depar.ment Federal Neuropsychiatric Hospital Lagos Nigeria Depar.ment of Community Medicine College of Health Sciences Delta State University Abraka Nigeria Depar.ment of Psychiatr. Yobe State Specialist Hospital Damaturu Nigeria Depar.ment of Mental Health Federal Neuropsychiatric Hospital Maiduguri Nigeria Depar.ment of Family Medicine Yobe State University Teaching Hospital Damaturu Nigeria Depar.ment of Family Medicine Aminu Kano Teaching Hospital Kano Nigeria

b.ckgr.und: Depr.ssion among adolescents has b.en r.cognized as a pub.ic health pr.b.em all over.the wor.d. In Niger.a, as in most developing countr.es, ther. is a need for.mor. r.sear.h on the epidemiology of adolescent depr.ssion as this will guide pr.vention, diagnosis and tr.atment. Ob.ectives: The study sought to deter.ine the one month pr.valence and pr.dictor. of depr.ssion among a sample of in-school adolescents in a r.r.l r.gion in south West Niger.a. Mater.als and Methods: This was a cr.ss sectional descr.ptive sur.ey among 540 secondar. school students r.ndomly selected fr.m the six secondar. schools in the study ar.a using a socio demogr.phic Questionnair. and the Patient Health Questionnair. modified for.Adolescents. sub.equently, a pr.por.ion of them wer. inter.iewed with the Kiddies schedule for.Affective Disor.er. and schizophr.nia. r.sults: Data wer. analyzed using the sPss ver.ion 17. r.spondents wer. aged 10 - 19 year. (mean age was 14.07 ± 1.84). The one month pr.valence of depr.ssion among the study population was 16.3% (using weighting method). Logistic r.gr.ssion analysis showed that death of a mother.(Or.= 11.786, 95% CI, 1.990 - 23.184), b.ing fr.m a polygamous family (Or.= 5.781, 95% CI, 3.253 - 24.371), low socioeconomic class (Or.= 6.222, 95% CI, 4.705 - 23.379), having a single par.nt (Or.= 2.236, 95% CI, 0.869 - 11.786), having witnessed fr.quent violence (Or.= 12.411, 95% CI, 0.516 - 29.851) and positive histor. of sexual ab.se (Or.= 0.203, 95% CI, 0.003 - 0.529) wer. significantly and independently associated with depr.ssion in this sample of adolescents. Conclusion: The one month pr.valence of adolescent depr.ssion within the study population is slightly higher.than what has b.en r.por.ed in other.par.s of the wor.d. Ther.for., ther. is a need for.gover.ment to design and implement policies which can help to pr.vent, detect ear.y, and tr.at depr.ssion among youths especially in r.r.l ar.as.

关键词： Pr.valence Depr.ssion Adolescents Pr.dictor.

Why Did sudanese End stage r.nal Failur. Patients r.fuse r.nal Tr.nsplantation?

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Open Jour.al of Nephr.logy 2015年第2期5卷 35-39页

作者： Amin s. b.naga Elaf b. Mohammed r.nia M. siddig Diana E. salama sar. b. Elb.shir.Mohamed O. Khojali r.sha A. b.b.ker.Khalifa Elmushar.f Mamoun M. Homeida Depar.ment of Medicine & Nephr.logy University of Medical Sciences and Technology Academy Charity Teaching Hospital Khartoum Sudan Clinical r.sear.h Assistants Department of Nephrology Academy Charity Teaching Hospital Khartoum Sudan Depar.ment of b.sic sciences Faculty of Medicine University of Medical Sciences & Technology Khartoum Sudan Depar.ment of Epidemiology & Pub.ic Health Medicine Royal College of Surgeon in Ireland (RCSI) Dublin Ireland Depar.ment of Medicine Faculty of Medicine University of Medical Sciences & Technology Khartoum Sudan

r.nal tr.nsplantation r.mains the most effective tr.atment of End stage r.nal Failur. (Esr.). In this cr.ss sectional study we explor. the r.asons b.hind r.fusal of r.nal tr.nsplantation among adults’ sudanese haemodialysis patients. The sub.ects of the study ar. Esr. adults’ patients on r.gular.haemodialysis tr.atment in 15 haemdoialysis centr.s in Khar.oum/sudan. All patients who ar. on r.gular.haemodialysis wer. inter.iewed b. questionnair. to explor. the r.asons of r.fusal of r.nal tr.nsplantation. A total of 1583 Esr. adults’ patients on r.gular.haemodialysis have b.en par.icipated in the study, 381 (24.1%) patients r.fused kidney tr.nsplantation. The mean age of patients r.fusing kidney tr.nsplantation was (58.5 + 15.1 year.);77.4% of them wer. ≥50 year. old, 59.2% wer. males and 88.1% wer. unemployed, patients older.than 50 year. old and unemployed ar. tend to r.fuse r.nal tr.nsplantation

关键词： sudan Esr. Tr.nsplantation r.fusal

XeCl b.X跃迁自发辐射谱压力关系的理论计算(英文)

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光学学报 1988年第4期 295-301页

作者： s.b.Zhu 楼祺洪中国科学院上海光学精密机械研究所德克萨斯工业大学皮秒和量子辐射实验室

采用假定所有旋转能级独立辐射和碰撞加宽劳仑茨线宽的准平衡模型,对XeCl b.X跃迁自发辐射谱进行了数值模拟计算,从而解释了高气压下谱线的加宽现象.本文采用的方法还可适用于其它双原子准分子.

关键词：准分子光谱

Constr.ctive Appr.aches to Intellectual Pr.per.y Complexity in Today's Agr.cultur.l Technology Wor.d

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分子植物育种 2007年第2期5卷 299-300页

作者： M.b. Connett Por.eddu　 N. b.con 　D. Ashton　 b. b.illie　 N. dos r.medios　 Y. Wei　 r.A. Jeffer.o CAMb.A＇s b.Os Initiative GPO Box 3200 Canberra ACT 2601 Australia r.sear.h school of b.ological sciences Australian National University Canberra ACT 2601 Australia

Essential to pr.gr.ss in plant b.otechnology for.deliver.b.e applications, patent and patent application data must b. tr.nspar.nt in or.er.to deter.ine wher. ther. is whitespace for.innovation. Fur.her.or., mechanisms

关键词：农业技术世界范围实验研究建设性方法

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合并运动的金融发起动态:历史的观点

经济学动态 1990年第11期 64-69页

作者：理查德·b.波弗爱德华德·s·赫尔曼陈一民

有效市场分析认为，厂商合并是为了减少或者消除公司资产的实际市场价值同可以实现的价值之间的差异，因为任何这样的差异都反映了资源的低效率的使用；公司控制权的转移是一种机制，市场系统通过这种机制替换了没有能力的管理，并允许... 详细信息

有效市场分析认为，厂商合并是为了减少或者消除公司资产的实际市场价值同可以实现的价值之间的差异，因为任何这样的差异都反映了资源的低效率的使用；公司控制权的转移是一种机制，市场系统通过这种机制替换了没有能力的管理，并允许更有效地处置资产。这种把合并看做能提高效率和具有社会功能的观点建立在两个假设的基础上。第一个假设认为合并活动的基础是得到厂商资产的真实价值（实际的和预期的价值）的充分的和正确的信息，

关键词：合并历史动态金融运动市场价值公司资产公司控制权