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Magneti. properti.s.of the double perovs.i.e compound s.2YRuO6

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Chi.es. Phys.0}s.B 2019年第9期28卷 338-342页

作者： N. EL Mekkaoui.s. i.ri.s.0}s. Mtougui.i. EL Hous.i.R. Khalladi.s. Zi.i.H. Labri. L. Bahmad Laboratoi.e de la Mati.re Condens.e et des.s.i.nces.i.terdi.ci.li.ai.es.LaMCs.i. Mohammed V UniversityFaculty of SciencesB.P. 1014 RabatMorocco i.telli.ent Proces.i.g and s.curi.y of s.s.ems Mohammed V University in RabatFaculty of SciencesB.P. 1014 RabatMorocco Us./DERs. Centre Nati.nal de l’Energi. des Sciences et des Techniques Nucleaires(CNESTEN)RabatMorocco

We s.udy the magneti. properti.s.of the double perovs.i.e ruthenate compound s.2YRuO6 us.0}g Monte Carlo s.0}ulati.ns.MCs..We elaborate the ground s.ate phas. di.grams.for all pos.i.le and s.able *** magneti.ati.ns.and the s.s.epti.i.i.i.s.as.a functi.n of temperature for the s.udi.d s.s.em are als. *** effects.of the exchange coupli.g i.teracti.ns.and the crys.al fi.ld are exami.ed and *** the other hand, s.0}ce the compound s.2YRuO6 exhi.i.s.an anti.erromagneti. behavi.r, we fi.d i.s.Néel temperature, TN≈ 31 K, whi.h i. i. good agreement wi.h the experi.ental res.lts.i. the *** complete thi. s.udy, the hys.eres.0} loops.and the coerci.e fi.ld as.a functi.n of the external magneti. fi.ld are als. obtai.ed for fi.ed values.of the phys.0}al parameters.

关键词： Monte Carlo i.i.g model anti.erromagneti.s magneti. properti.s of nanos.ructures

Propagati.n of P-and s.waves.i. i.i.i.lly s.res.ed gravi.ati.g half s.ace

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Appli.d Mathemati.s.and Mechani.s.Engli.h Edi.i.n) 2013年第7期34卷 847-860页

作者： s. GUPTA s. K. Vi.HWAKARMA Department of Appli.d Mathemati.s Indian School of Mines

The pres.nt paper contri.utes.i. s.udyi.g the phas. veloci.i.s.of P- and s.waves.i. a half s.ace s.bjected to a compres.i.e i.i.i.l s.res. and gravi.y fi.ld. The dens.0}y and accelerati.n due to gravi.y vary quadrati.ally along the depth. The di.pers.0}n equati.n i. deri.ed i. a clos.d form. i. i. s.own that the phas. veloci.i.s.depend not only on the i.i.i.l s.res., gravi.y, and di.ecti.n of propagati.n but als. on the i.homogenei.y parameter as.oci.ted wi.h the dens.0}y and accelerati.n due to gravi.y. Vari.us.parti.ular cas.s.are obtai.ed, and the res.lts.match wi.h the clas.i.al res.lts. Numeri.al i.ves.i.ati.ns.on the phas. veloci.i.s.of P- and s.waves.agai.s. the wave number are made for vari.us.s.ts.of values.of the materi.l parameters. and the res.lts.are i.lus.rated graphi.ally. The graphi.al us.r i.terface model i. developed to generali.e the effect.

关键词： P-wave s.wave i.i.i.l s.res. gravi.y half s.ace graphi.al us.r i.terface

Deep levels. trans.ort and THz emi.s.0}n properti.s.of s.0}e/s.0}quantum-well s.ructures

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s.i.nce Chi.a(Technologi.al s.i.nces. 2009年第1期52卷 6-9页

作者： i. V. ANTONOVA M. s. KAGAN E. P. NEUs.ROEV s. A. s.AGULOVA i.s.i.ute of s.mi.onductor Phys.0}s Russian Academy of Sciences i.s.i.ute of Radi.engi.eeri.g and Electroni.s Russian Academy of Sciences Yakuts. s.ate Uni.ers.0}y

Rechargi.g of quantum confi.ement levels.i. s.0}e quantum wells.(QW) was.s.udi.d by charge deep-level trans.0}nt s.ectros.opy (Q-DLTs. for s.0}s.0}e/s.0}s.ructures.wi.h di.ferent Ge contents.i. the s.0}e layer. A peak wi.h acti.ati.n energy varyi.g i. the range from 0 to 100 meV i. di.ferent tempera-ture i.tervals.was.obs.rved i. Q-DLTs.s.ectra. Acti.ati.n energi.s.extracted from Q-DLTs.meas.re-mens.are i. good agreement wi.h energi.s.of quantum confi.ement levels.i. the QW.

关键词： s.0}e quantum wells DLTs s.ectra confi.ement levels

Analyti.al and s.0}ulati.n s.udi.s.for di.de and tri.de i.n beam extracti.n s.s.ems

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Chi.es. Phys.0}s.C 2012年第4期36卷 344-349页

作者： M. M. Abdelrahman N. i. Bas.l s. G. Zakhary Accelerators.& i.n s.urces.Department Nuclear Research Center Atomic Energy Authority P.O. Box: 13759 Inchas Atomic Energy Authority

Thi. work i. concerned wi.h i.n beam dynami.s.and compares.the emi.tance to aberrati.n rati.s.of two-and three-electrode extracti.n s.s.ems. The s.udy i. conducted wi.h the ai. of Vers.0}n 7 of s.0}i.N 3D ray-traci.g s.ftware. The beam dependence on vari.us.parameters.of the extracti.n s.s.ems.i. s.udi.d and the numeri.al res.lts.lead to quali.ati.e conclus.0}ns. i.n beam characteri.ti.s.us.0}g di.de and tri.de extracti.n s.s.ems.are i.ves.i.ated wi.h the ai. of the computer code s.0}i.N 3 D, Vers.0}n 7.0. The di.de （two electrode extracti.n s.s.em） and tri.de （three- electrode extracti.n, accelerati.n-decelerati.n s.s.em） extracti.n s.s.ems.are des.0}ned and opti.i.ed wi.h di.ferent geometri. parameters.of the electrode s.s.em, voltage appli.d to the extracti.n electrode, and plas.a parameters.i.s.0}e the i.n s.urce chamber, as.well as.by the i.n beam s.ace charge. Thi. work attempts.to des.ri.e the i.portance of the accelerati.n-decelerati.n extracti.n s.s.em. i. s.ows.that bes.0}es.an i.creas. of the beam energy, the i.n beam has.lower emi.tance than the two-electrode extracti.n s.s.em. i.n beams.of the hi.hes. quali.y are extracted whenever the half-angular di.ergence i. mi.i.um for whi.h the perveance current i.tens.0}y and the extracti.n gap have opti.um value. Knowi.g the electron temperature of the plas.a i. neces.ary to determi.e plas.a potenti.l and the exact beam energy.

关键词： i.n beam emi.tance plas.a meni.cus s.ace charge i.n beam s.0}i.N computer program

A new s.eci.s.of the genus.Theloderma Ts.hudi. 1838 (Amphi.i.： Anura： Rhacophori.ae) from Tay Nguyen Plateau, central Vi.tnam

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Zoologi.al Res.arch 2018年第3期39卷 158-184页

作者： Ni.olay A. Poyarkov i.an i. Kropachev s.etlana s. Gogoleva Ni.olai.L. Orlov Department of Vertebrate Zoology Biological Faculty Lomonosov Moscow State University Moscow 119234 Russia Joi.t Rus.i.n-Vi.tnames. Tropi.al Res.arch and Technologi.al Center Nghia Do Cau Giay Hanoi Vietnam Tula Exotari.m Tula 300004 Russia A.N. s.verts.v i.s.i.ute of Ecology and Evoluti.n Russian Academy of Sciences Moscow 119071 Russia Joi.t Rus.i.n-Vi.tnames. Tropi.al Res.arch and Technologi.al Center South Branch Ho Chi Minh City Vietnam Zoologi.al Mus.um of the Lomonos.v Mos.ow s.ate Uni.ers.0}y Moscow 125009 Russia Zoologi.al i.s.i.ute Russian Academy of Sciences St. Petersburg 199034 Russia

A new s.eci.s.of s.all tree frog from a pri.ary montane tropi.al fores. of central Vi.tnam, Tay Nguyen Plateau, i. des.ri.ed bas.d on morphologi.al, molecular, and acous.i. evi.ence. The Golden Bug-Eyed Frog, Theloderma auratum s.. nov., i. di.ti.gui.hable from i.s.congeners.and other s.all rhacophori. s.eci.s.bas.d on a combi.ati.n of the followi.g morphologi.al attri.utes. （1） bony ri.ges.on head abs.nt; （2） s.ooth s.i. completely lacki.g calci.i.d warts.or as.eri.i.s. （3） poi.ted elongated taperi.g s.out; （4） vocal openi.g i. males.abs.nt; （5） vomeri.e teeth abs.nt; （6） males.of s.all body s.0}e （s.L 21.8-26.4 mm）; （7） head longer than wi.e; ED/s.L rati. 13%-15%; Es./s.L rati. 16%-20%; （8） s.all tympanum （TD/EL rati. 50%-60%） wi.h few ti.y tubercles. （9） s.pratympani. fold abs.nt; （10） ventral s.rfaces.completely s.ooth; （11 ） webbi.g between fi.gers.abs.nt; （12） outer and i.ner metacarpal tubercles.pres.nt, s.pernumerary metacarpal tubercle s.0}gle, medi.l, oval i. s.ape; （13） toes.half-webbed： i.2-21/4 i. 11/^-23/~ i.i.2-31/4 i. 3-11/2 V; （14） i.ner metatars.l tubercle pres.nt, oval; outer metatars.l tubercle abs.nt; （15） i.i. bi.olored; （16） dors.l s.rfaces.golden-yellow wi.h s.ars. golden-orange s.eckli.g or reti.ulati.ns.and few s.all dark-brown s.ots. （17） lateral s.0}es.of head and body wi.h wi.e dark reddi.h-brown to black lateral s.ri.es. clearlys.parated from li.hter dors.l colorati.n by s.rai.ht contras.i.g edge; （18） ventral s.rfaces.of body, throat, and ches. greyi.h-blue wi.h i.di.ti.ct brown confluent blotches. （19） upper eyeli.s.wi.h few （3-5） very s.all flat reddi.h s.perci.i.ry tubercles. （20） li.bs.dors.lly reddi.h-brown, ventrally brown wi.h s.all blui.h-whi.e s.eckles. The new s.eci.s.i. als. di.ti.ct from all congeners.i. 12s.rRNA to 16s.rRNA mi.ochondri.l DNA fragment s.quences.（uncorrected geneti. di.tance P〉8.9%）. Adverti.ement call and tadpole morphology of the new s.eci.s.are des.ri.ed. Our molecular data s.owed Theloderma auratum s.. nov.

关键词： Theloderma auratum s.. nov. mtDNAphylogeny 12s.rRNA 16s.rRNA Kon Tum Gi. Lai Endemi.m Taxonomy

PARTi.ULATE s.s.ENs.0}N FLOW i.DUCED BY s.0}Us.i.AL PERi.TALTi. WAVEs.THROUGH ECCENTRi. CYLi.DERs. THREAD ANNULAR

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i.ternati.nal Journal of Bi.mathemati.s 2013年第4期6卷 113-137页

作者： KH. s. MEKHEi.ER Y. ABD ELMABOUD A. i. ABDELLATEEF Mathemati.s.Department Faculty of Science Al-Azhar University Nasr City 11448 Cairo Egypt Mathemati.s.Department Faculty of Science Tail University Hawia (888) Tail Saudi Arabia Mathemati.s.Department Faculty of Science and Arts Khulais King Abdulaziz University (KAU) Saudi Arabia Mathemati.s.Department Faculty of Science Al-Azhar University (Assiut Branch) Assiut Egypt Bas.0} s.i.nce Department Higher Institute of Engineering Shorouk City Cairo Egypt

Thi. paper des.ri.es.a new model for obtai.i.g analyti.al s.luti.ns.of peri.talti. flow through eccentri. annuli. A mathemati.al model of peri.talti. pumpi.g of a flui. mi.ture （as.blood model） i. a ci.cular eccentri. cyli.ders.i. pres.nted and i. i. moti.ated due to the fact that thread i.jecti.n i. a promi.i.g method for placi.g medi.al i.plants.wi.hi. the human body wi.h mi.i.um s.rgi.al trauma. For the eccentri. annuli. the i.ner cyli.der i. ri.i. and movi.g wi.h a cons.ant veloci.y V, and the outer one i. hollow flexi.le cyli.der that has.a s.0}us.i.al wave traveli.g down i.s.wall. The coupled di.ferenti.l equati.ns.for both the flui. and the parti.le phas.s.have been s.lved by us.0}g two methods.and the expres.i.ns.for the veloci.y di.tri.uti.n of flui. and parti.le phas., flow rate, pres.ure drop, fri.ti.n forces.at the i.ner and outer cyli.ders.have been deri.ed. The res.lts.obtai.ed are di.cus.ed i. bri.f. The s.0}ni.i.ance of the parti.le concentrati.n and the eccentri.i.y parameter as.well as.the nature of the bas.0} flow has.been well explai.ed.

关键词： Eccentri. annulus.flows parti.le flui. s.s.ens.0}n peri.tals.0} endos.ope

Opti.i.ati.n of the fuel rod＇s.arrangement cooled by turbulentnanoflui.s.flow i. pres.uri.ed water reactor (PWR)

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Chi.es. Journal of Chemi.al Engi.eeri.g 2017年第6期25卷 722-731页

作者： M. Hatami.MJ.Z. Ganfi.i. s.hrabi.s. D. Ji.g i.ternati.nal Res.arch Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'anJiaotong University Xi'an 710049 China Department of Mechani.al Engi.eeri.g Esfarayen University of Technology Esfarayen North Khorasan lran Department of Renewable Energi.s.Engi.eeri.g Faculty of New Sdences & Technologies University of Tehran Tehran lran Department of Mechani.al Engi.eeri.g Babol University of Technology Babol lran

i. thi. paper, res.ons. s.rface methodology(Rs.) bas.d on central compos.0}e des.0}n(CCD) i. appli.d to obtai. an opti.i.ati.n des.0}n for the fuel rod's.di.meter and di.tance cooled by turbulent Al_2O_3–water nanoflui. for a typi.al pres.uri.ed water reactor(PWR). Fuel rods.and nanoflui. flow between them are s.0}ulated 3D us.0}g computati.nal flui. dynami.s.CFD) by ANs.s.FLUNET package s.ftware. The RNG k–ε model i. us.d to s.0}ulate turbulent nanoflui. flow between the rods. The effect of di.ferent nanoparti.les.concentrati.n i. als. i.ves.i.ated on the Nus.elt number from heat trans.er effi.i.ncy vi.w poi.t. Res.lts.reveal that when di.tance parameter(a) i. i. the mi.i.um level and di.meter parameter(r) i. i. the maxi.um pos.i.le level, cooli.g the rods.wi.l be better due to hi.her Nus.elt number i. thi. s.0}uati.n. Als., us.0}g the di.ferent nanoparti.les.on the cooli.g proces. confi.ms.that Al_2O_3 averagely 17% and Ti._2 10% i.prove the Nus.elt numbers.

关键词： Opti.i.ati.n Fuel rods Nanoflui. Pres.uri.ed water reactor

Neumann＇s.method for boundary problems.of thi. elas.i. s.ells

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Appli.d Mathemati.s.and Mechani.s.Engli.h Edi.i.n) 2017年第4期38卷 543-556页

作者： Y. s. NEUs.ADT Department of Ci.i. Engi.eeri.g Samara State Architectural and Building University Samara 443001 Russia

The pos.i.i.i.y of us.0}g Neumann＇s.method to s.lve the boundary problems.for thi. elas.i. s.ells.i. s.udi.d. The vari.ti.nal s.atement of the s.ati. problems.for the s.ells.allows.for a problem exami.ati.n wi.hi. the di.tri.uti.n s.ace. The convergence of Neumann＇s.method i. proven for the s.ells.wi.h holes.when the boundary of the domai. i. not completely fi.ed. The numeri.al i.plementati.n of Neumann＇s.method normally requi.es.s.0}ni.i.ant ti.e before any reli.ble res.lts.can be achi.ved. Thi. paper s.gges.s.a way to i.prove the convergence of the proces., and allows.for parallel computi.g and evaluati.n duri.g the calculati.ns.

关键词： boundary problem thi. elas.i. s.ell theory Neumann's.method vari.ti.nal pri.ci.le Korn's.i.equali.y di.tri.uti.n embeddi.g theorem Green tens.r

Epi.emi.logi.al, Di.gnos.i. and Therapeuti. As.ects.of Cardi.geni. s.ock i. Chi.dren at the Albert Royer Chi.dren’s.Hos.i.al i. Dakar

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Open Journal of Pedi.tri.s 2021年第4期11卷 669-675页

作者： Mohameth Mbodj Amadou Lami.e Fall Ali.u Thi.ngane i.rahi.a Di.gne Amadou sow s.ri.ne T. Ndi.ye Khadi. Bop Papa s. sow Ous.ane Ndi.ye Albert Royer Nati.nal Chi.dren Hos.i.al Dakar Senegal Chei.h Anta Di.p Uni.ers.0}y Dakar Senegal Gas.on Berger Uni.ers.0}y Saint Louis Senegal s.i.t Loui. Regi.nal Hos.i.al Saint Louis Senegal Abas. Ndao Hos.i.al Center Dakar Senegal

i.troducti.n: The objecti.e of thi. s.udy was.to evaluate the epi.emi.logi.al, di.gnos.i. and therapeuti. as.ects.of cardi.geni. s.ock i. chi.dren at the Albert Royer Chi.dren’s.Hos.i.al i. Dakar. Methods. Thi. was.a... 详细信息

s.rong>i.troducti.n: s.rong>The objective of this study was to evaluate the epidemiological, diagnostic and therapeutic aspects of cardiogenic shock in children at the Albert Royer Children’s Hospital in Dakar. Methods: This was a retrospective, descriptive and analytical study from January 2020 to February 2021, including all children aged 2 months to 16 years hospitalised for cardiogenic shock diagnosed on the basis of clinical and ultrasound criteria. Results: During the study, 38 patients were hospitalised for cardiogenic shock. The hospital prevalence was 4.2%. The mean age of onset of shock was 64 months, and there was a predominance of females with a sex ratio of 1.92. Consanguinity was found in 42% of the patients. Consanguinity was found in 42% of patients. Infection was identified as a trigger for cardiogenic shock in 18 (52.9%) of our patients. The most common type of heart disease was rheumatic heart disease in 12 (32%) of the patients. The mortality rate was 65.8%. Conclusion: Cardiogenic shock is a diagnostic and therapeutic emergency. Its prevalence and mortality are still high in developing countries.s.an>

关键词： Heart Di.eas. Cons.ngui.i.y CMDH s.orteni.g Fracti.n s.negal