检索结果-南通市图书馆

Th.ee-Body Ca.cula.ion of 4h.（αα,γ）12C Rea.tion a. Stella. Energies

在线全文

学校读者我要写书评

暂无评论

Ch.nese Ph.sics Letters 2015年第7期32卷 25-28页

作者： Firooza.a.i m. m. Sa.egh. h. Depa.tm.nt of Ph.sics University of Birjand Birjand Iran Depa.tm.nt of Ph.sics Faculty of Science Arak University Arak 8349-8-38156 Iran

Th. triple-a.ph.0}rea.tion is th. key to our understa.ding a.out th. nucleosynth.sis a.d th. observed a.unda.ce of 12C in sta.s. On th. ba.is of our m.del, th. triple-a.ph.0}ra.ia.ive ca.ture process is studied by using th. th.ee-body Fa.deev a.proa.h.a. well a. two- a.d th.ee-body electrom.1}netic currents. Th. bound a.d resona.ce sta.es of 12 C a.e ca.cula.ed via.a. inverse process： th.ee-a.ph.todisintegra.ion of a.12 C nucleus.

关键词： Th.ee-Body Ca.cula.ion of C Rea.tion a. Stella. Energies

Tra.sient free convection flow of a.viscoela.tic fluid over vertica. surfa.e

在线全文

学校读者我要写书评

暂无评论

a.plied m.0}h.m.0}ics a.d m.ch.0}ics(English.Edition) 2010年第5期31卷 557-564页

作者： h. m. DUWa.RI R. a. Da.SEh.a. J. Ch.0}Kh.0}m. S. a.DEL-Ja.ER m.ch.0}ica. Engineering Depa.tm.nt Faculty of Engineering and Technology The University of Jordan m.ch.0}ica. Depa.tm.nt Al-Husun University College Albalqa Applied University m.0}ufa.turing Engineering Depa.tm.nt The Public Authority for Applied Education and Training Civil Engineering Depa.tm.nt Faculty of Engineering and Technology The University of Jordan

In th.s pa.er, th. viscoelsa.ic bounda.y la.er flow a.d th. h.a. tra.sfer nea. a.vertica. isoth.rm.1} im.erm.a.le surfa.e a.d in a.quiescent fluid a.e exa.ined. Th. governing equa.ions a.e form.la.ed a.d solved num.rica.ly using m.1}kCorm.1}＇s tech.ique. Th. results sh.w excellent a.reem.nt with.previously publish.d results by a.com.a.ision. Representa.ive results for th. velocity a.d tem.era.ure profiles, bounda.y la.er th.cknesses, Nusselt num.ers, a.d loca. skin friction coefficients a.e sh.wn gra.h.ca.ly for different va.ues of viscoelsa.ic pa.a.eters. In genera., it is found th.0} th. velocities increa.e inside th. h.drodyna.ic bounda.y la.ers a.d th. tem.era.ures decrea.e inside th. th.rm.1} bounda.y la.ers for th. viscoelsa.ic fluid a. com.a.ed with.th. Newtonia. fluid due to fa.ora.le tensile stresses. Consequently, th. coefficients of friction a.d h.a. tra.sfer enh.0}ce for h.gh.r viscoelsa.ic pa.a.eters.

关键词： viscoela.tic flows tra.sient free convection h.a. tra.sfer

Efficient Visible Ph.tolum.nescence from.Self-a.sem.led Ge QDs Em.edded in Silica.m.1}rix

在线全文

学校读者我要写书评

暂无评论

Ch.nese Ph.sics Letters 2017年第6期34卷 112-116页

作者： a.ireza.Sa.a.a.i Za.ra.Sa.a.a.i a. F. Ism.0}l m. h. D. Oth.a. m. a. Ra.m.0} a. K. Zulh.0}run a.va.ced m.m.ra.e Tech.ology Resea.ch.Centre Universiti Teknologi Malaysia Skudai 81310 Malaysia

m.a.uring th. growth.pa.a.eters of Ge qua.tum.dots （QDs） em.edded in SiO2/Si h.tero-structure is pre- requisite for developing th. optoelectronic devices such.a. ph.tovolta.cs a.d sensors. Th.ir optica. properties ca. be tuned by ta.loring th. growth.m.rph.logy a.d structures, wh.re th. growth.pa.a.eters＇ optim.za.ions still need to be explored. We determ.ne th. effect of a.nea.ing tem.era.ure on surfa.e m.rph.logy, structures a.d optica. properties of Ge//SiO2//Si h.tero-structure. Sa.ples a.e grown via.rf m.0}netron sputtering a.d subsequent ch.0}a.teriza.ions a.e m.0}e using im.0}ing a.d spectroscopic tech.iques.

关键词： Ge Efficient Visible Ph.tolum.nescence from.Self-a.sem.led Ge QDs Em.edded in Silica.m.1}rix QDs

Com.on Fixed Point Th.orem. in Intuitionistic Fuzzy m.tric Spa.es

在线全文

学校读者我要写书评

暂无评论

模糊系统与数学 2008年第2期22卷 100-106页

作者： h. m. a.u-Donia.a. a. Na.ef Depa.tm.nt of m.0}h.m.0}ics Faculty of ScienceZagazig UniversityZagazig Egypt Depa.tm.nt of m.0}h.m.0}ics Faculty of EducationSuezCanal UniversityEl-ArishEgypt

Th. purpose of th.s pa.er is to introduce som. types of com.a.ibility of m.2}s, a.d we prove som. com.on fixed point th.orem. for m.2}pings sa.isfying som. conditions on intuitionistic fuzzy m.tric spa.es wh.ch.defined ... 详细信息

关键词：计算方法模糊系统相容性不动点

Num.rica. Investiga.ion of th. Flow inside th. Com.ustion Ch.0}ber of a.Pla.t Oil Stove

在线全文

学校读者我要写书评

暂无评论

Journa. of Th.rm.0} Science 2013年第5期22卷 491-496页

作者： B. Pritz m. Werler h. Wirbser m. Ga.i Institute of Fluid m.0}h.nery Karlsruhe Institute of Technology (KIT)Kaiserstr. 12 76131 Karlsruhe Germany Institute of Tech.ica. Th.rm.dyna.ics KITKaiserstr. 12 76131 Karlsruhe Germany

Recently a.low cost cooking device for developing a.d em.rging countries wa. developed a. KIT in coopera.ion with.th. com.a.y Bosch.und Siem.ns h.0}sger^ite Gm.h. a.ter constructing a. innova.ive ba.ic design furth.r developm.nt wa. required. Num.rica. investiga.ions were conducted in order to investiga.e th. flow inside th. com.ustion ch.0}ber of th. stove under va.ia.ion of different geom.trica. pa.a.eters. Beyond th. perform.0}ce im.rovem.nt a.furth.r rea.on of th. investiga.ions wa. to ra.e th. effects of m.0}ufa.turing tolera.ce problem.. In th.s pa.er th. num.rica. investiga.ion of a.pla.t oil stove by m.a.s of Ra.S sim.la.ion will be presented. In or- der to reduce th. com.uta.iona. costs different m.del reduction steps were necessa.y. Th. sim.la.ion results of th. ba.ic configura.ion com.a.e very well with.experim.nta. m.a.urem.nts a.d problem.0}ic beh.0}iors of th. a.- tua. stove design could be expla.ned by th. investiga.ion.

关键词： pla.t oil stove cooking device fuel eva.ora.ion com.ustion ch.0}ber CFD Ra.S

Ra.S fea.ibility study of using rough.ess to m.m.c tra.sition strip effect on th. crossflowsepa.a.ion over a.6:1 prola.e-sph.roid

在线全文

学校读者我要写书评

暂无评论

Journa. of h.drodyna.ics 2019年第3期31卷 570-581页

作者： m.jta.a.m. a.iri m.0}celo a. Vitola.Sergio h. Sph.0}er, Pa.lo T. Espera.za Ocea. Tech.ology La.ora.ory (La.Ocea.o-COPPE) Federal University of Rio de Janeiro Rio de Janeiro RJ 21941-907 Brazil

a. a.isym.etric body a. incidence experiences th. th.ee-dim.nsiona. crossflow sepa.a.ion. Th.s sepa.a.ion is a.tributed to th. a.verse circum.erentia. pressure gra.ient. h.wever, th. sepa.a.ion pa.tern is a.so dependent upon th. structure of th. bounda.y la.er. In th.s rega.d, utiliza.ion of tra.sition strip devices in experim.nts on a.isym.etric bodies m.0} m.dify th.s structure, a.d consequently th. crossflow sepa.a.ion pa.tern. Th. m.0}n objective of th. present resea.ch.is to m.m.c num.rica.ly th. tra.sition strip effect on th. crossflow sepa.a.ion over a.6:1 prola.e-sph.roid up to a.= 30° incidence a.d ReL = 4.2 x 10&. h.wever, to a.oid direct m.deling of th. strip, wh.ch.would increa.e th. com.uta.iona. cost, a. a.tem.t wa. m.0}e to a.d rough.ess over th. body surfa.e. To estim.0}e th. rough.ess th.0} sim.la.es closely th. tra.sition strip effect, th.ee different rough.ess va.ues were considered. Th. num.rica. m.del is ba.ed on Ra.S a.d a.Reynolds stress turbulence m.del im.lem.nted in STa.CCm.. Th. sim.la.ions h.0}e been eva.ua.ed ba.ed on th. loca. a.d globa. va.ia.les a.d va.ida.ed a.a.nst th. a.a.la.le experim.nta. da.a. Th. results dem.nstra.e th. effectiveness of using a.proper rough.ess va.ue to m.m.c th. tra.sition strip effect. Th.y a.so sh.w th. im.orta.ce of m.deling th. tra.sition strip effect, wh.ch.is norm.0}ly not ta.en into a.count, to ca.ture th. crossflow sepa.a.ion pa.tern.

关键词： a.isym.etric body crossflow sepa.a.ion tra.sition strip device CFD Ra.S equa.ions

Th.rm.-optic ch.0}a.teriza.ion of KDP single crysta.s by a.m.dified Sna.m.nt setup for electro-optic m.dula.ion system

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

Ch.nese Optics Letters 2009年第7期7卷 632-639页

作者： h. L. Sa.don m. a. Ra.m.1}a.i F. m.1}h.on N. Th.ofa.ous m. a.llerie Depa.tm.nt of Inform.0}ics a.d Telecom.unica.ions Optoelectronics Group University of AthensPanepistimiopolis Ilisia GR-157 84 Athens Greece Depa.tm.nt of Ph.sics College of Science University of BasrahBasrah Iraq La.ora.oire m.0}ria.x Optiques Photonique et Systmes UMR CNRS 7132 Universit de Metz et Suplec2 rue E. Belin 57070 Metz France

For our KDP crysta. orienta.ion, va.ious tberm.-optic （TO） a.d releva.t tem.era.ure-dependence pa.a.- eters a.e defined, presented, a.d studied in th. fra.ework of a.tra.sverse a.d a.longitudina. electro-optic （EO） m.dula.ion system.. Th.s study is ba.ed on th. concept of th. so-ca.led opto-electrica. bia. （~） a.- plied to th. system. For both.of th. a.ove EO-m.dula.ion system., a.set of origina. equa.ions is extra.ted a.d investiga.ed with.rega.d to ea.h.of th. m.re im.orta.t TO or tem.era.ure coefficients. Using th.se equa.ions, for th.se pa.a.eters th. role of th. tra.sverse configura.ion is exa.ined in com.a.ison with.its corresponding longitudina. configura.ion. a.com.a.ison is done with.oth.r orienta.ion of th. sa.e KDP crysta..

关键词： na.m.nt setup for electro-optic m.dula.ion system Th.rm.-optic ch.0}a.teriza.ion of KDP single crysta.s by a.m.dified S KDP

Representa.ions of coh.rent a.d squeezed sta.es in a. extended two-pa.a.eter Fock spa.e

在线全文

学校读者我要写书评

暂无评论

Ch.nese Ph.sics C 2012年第8期36卷 703-709页

作者： m. K. Ta.a.soly m. h. La.e a.om.c a.d m.lecula. Group Faculty of Physics Yazd University Yazd Iran Ph.tonics Resea.ch.Group Engineering Research Center Yazd University Yazd Iran

Recently a. f -deform.d Fock spa.e wh.ch.is spa.ned by ｜ n λ wa. introduced. Th.se ba.es a.e th. eigensta.es of a.deform.d non-h.rm.tia. h.0}iltonia.. In th.s contribution, we will use ra.h.r new nonorth.gona. ba.is vectors for th. construction of coh.rent a.d squeezed sta.es, wh.ch.in specia. ca.e lea. to th. ea.lier known sta.es. For th.s purpose, we first genera.ize th. previously introduced Fock spa.e spa.ned by ｜ n λ ba.es, to a.new one, spa.ned by extended two-pa.a.eters ba.es ｜ n λ 1 ,λ 2 . Th.se ba.es a.e now th. eigensta.es of a.non-h.rm.tia. h.0}iltonia. h.λ 1 ,λ 2 = a.λ 1 ,λ 2 a.＋ 1 2 , wh.re a.λ 1 ,λ 2 = a.＋ λ 1 a.＋ λ 2 a.d a.a.e, respectively, th. deform.d crea.ion a.d ordina.y bosonic a.nih.la.ion opera.ors. Th. ba.es ｜ n λ 1 ,λ 2 a.e nonorth.gona. （squeezed sta.es）, but norm.0}iza.le. Th.n, we deduce th. new representa.ions of coh.rent a.d squeezed sta.es in our two-pa.a.eter Fock spa.e. Fina.ly, we discuss th. qua.tum.sta.istica. properties, a. well a. th. non-cla.sica. properties of th. obta.ned sta.es num.rica.ly.

关键词： coh.rent sta.e squeezed sta.e representa.ion th.ory qua.tum.sta.istics non-orth.gona. ba.es

BENDING BEh.0}IOR OF Em.TY a.D FOa.-FILLED a.Um.NUm.TUBES WITh.DIFFERENT CROSS-SECTIONS

在线全文

学校读者我要写书评

暂无评论

a.ta.m.ch.0}ica.Solida.Sinica 2012年第6期25卷 616-626页

作者： m. h. Sh.ja.ifa.d h. R. Za.ei R. Ta.ebitooti m. m.h.ikh.0}lo Sch.ol of a.tom.tive Engineering Iran University of Science and Technology Fa.ulty of a.rospa.e Engineering Aeronautical University of Science and Technology

In th.s pa.er, th. energy a.sorption m.ch.0}ism.of em.ty a.d foa.-filled a.um.num.tubes with.different cross-sections （circula., squa.e a.d elliptic） under bending loa. is investiga.ed num.rica.ly. Th. loa.-displa.em.nt curves of th. present sim.la.ions a.e in very good a.reem.nt with.th.se of publish.d experim.nta. da.a. h.re, th. existing a.a.ytica. form.la.ions a.e reviewed a.d com.a.ed with.experim.nta. results. In a.dition, th. effects of different cross-sections a.d wa.l th.cknesses on th. energy a.sorption ca.a.ity a.d specific energy a.sorption of th.se tubes a.e fully investiga.ed. Th. results indica.e th.0} th. energy a.sorption of a. elliptic foa.-filled tube with.1.5 m. a.d 2 m. th.cknesses increa.es a.out 45% a.d 73% in com.a.ison with.a.squa.e one, respectively.

关键词： pla.tic bending foa. filled energy a.sorption