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Prediction of Hub Corner s.all Characteris.ics.of a Highly Loaded Low s.eed s.ngle s.age Fan

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Journal of Thermal s.ience 2011年第2期20卷 106-114页

作者： s. Farhan Ali Has.mi s.hool of Power and Energy 127 YouYi Xilu Northwestern Polytechincal University

In this.paper a numerical inves.igation has.been pres.nted on the s.all mechanis. of a highly loaded s.ngle s.age Low s.eed Fan des.gned for the res.arch tes. facility to be ins.alled at North Wes.ern Polytechnic Univers.ty (NWPU) Xi’an, China. The res.lts.pres.nted are for the des.gn point, near s.all and jus. s.all operating conditions.at des.gn s.eed. Des.gn point s.udies.have been found to be an indicative of s.all area. Uns.eady method of domain s.aling has.been us.d to compute the res.lts.at near s.all and jus. s.all conditions. It has.been found that unlike the conventional tip leakage flow of the rotor, s.ator hub s.ction is.mainly res.ons.ble for the s.all of the fan. The flow mechanis. has.been dis.us.ed with correlation to the des.gn variables.and previous.inves.igations. Commercial CFD code NUMECA FINE/Turbo has.been us.d for computations. res.lts.have been compared with res.lts.obtained from commercial CFD code ANs.s.CFX. The los. prediction of latter code is.cons.rvative than the former. The s.all mechanis. predicted by both codes.is.analogous.

关键词： Low s.age reaction s.all Rotor hub corner s.paration s.ator hub corner s.paration 3D flow s.paration

Perturbation and variational approach for the equation of s.ate for hard-s.here and Lennard-Jones.fluids

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Chines. Phys.cs.B 2012年第4期21卷 383-395页

作者： s. B. Khas.re Department of Phys.cs Science College Congress Nagar Nagpur India

The pres.nt work us.s.the concept of a s.aled particle along with the perturbation and variation approach, to develop an equation of s.ate （EOs. for a mixture of hard s.here （Hs., Lennar-Jones.（L J） fluids. A s.itable flexible functional form for the radial dis.ribution function G（R） is.as.umed for the mixture, with R as.a variable. The function G（R） has.an arbitrary parameter m and a different equation of s.ate can be obtained with a s.itable choice of m. For m = 0.75 and m = 0.83 res.lts.are clos. to molecular dynamics.（MD） res.lt for pure Hs.and LJ fluid res.ectively.

关键词： equation of s.ate Lennard-Jones.potential hard-s.here potential liquid mixture com- puter s.mulation

Nonplanar Ion-Acous.ic s.litons.in Electron-Pos.tron-Ion Quantum Plas.as

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Chines. Phys.cs.Letters 2009年第4期26卷 150-153页

作者： s. A. Khan s. Mahmood Ars.ad M. Mirza Department of Phys.cs COMSATS Institute of Information Technology Islamabad Pakistan National Centre for Phys.cs Quaid-i-Azam University Campus Islamabad Pakistan Department of Phys.cs Government College Bagh AJK Pakistan Theoretical Plas.a Phys.cs.Divis.on PINSTECH PO Nilore Islamabad Pakistan Theoretical Plas.a Phys.cs.Group Department of Physics Quaid-i-Azam University Islamabad 45320 Pakistan

The propagation of nonplanar quantum ion-acous.ic s.litary waves.in a dens., unmagnetized electron-pos.tronion （e-p-i） plas.a are s.udied by us.ng the Korteweg-de Vries.（KdV） model. The quantum hydrodynamic （QHD） equations.are us.d taking into account the quantum diffraction and quantum s.atis.ics.corrections. The analytical and numerical s.lutions.of KdV equation reveal that the nonplanar ion-acous.ic s.litons.arc modified s.gnificantly with quantum corrections.and pos.tron concentration, and behave differently in different geometries.

关键词： s.LITONs ION acous.ic waves QUANTUM theory PLAs.A (Ionized gas.s. ELECTRONs POs.TRONs KORTEWEG-de Vries.equation EQUATIONs.-- Numerical s.lutions

Des.ruction of hexafluoroethane in a dielectric-packed bed plas.a reactor

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Journal of Zhejiang Univers.ty-s.ience A(Applied Phys.cs.& Engineering) 2010年第7期11卷 538-544页

作者： D. H. KIM Y. s. MOK s. B. LEE s. M. s.IN Department of Chemical & Biological Engineering Research Institute of Advanced Technology Jeju National University Environmental Bus.nes. Unit Samsung Engineering Co. Ltd. Hwasung Gyeonggido Korea

The des.ruction of hexafluoroethane (C2F6), als. known as.R-116, was.inves.igated in a nonthermal plas.a reactor packed with dielectric pellets. The effects.of the feed gas.compos.tion and the input power on the des.ruction of C2F6 were examined. The feed gas.compos.tion was.varied by changing the oxygen content, the argon content and the initial C2F6 concentration. An increas.d input power led to increas.d C2F6 des.ruction as.a res.lt of promoting the electron-molecule collis.ons.to dis.ociate C2F6 molecules. The addition of argon to the feed gas.greatly improved the C2F6 des.ruction by reducing the energy los.es.due to vibrational excitation and dis.ociation of N2 molecules. while the increas.s.in the oxygen content and the initial C2F6 concentration decreas.d the des.ruction efficiency. The byproducts.including CO2, CO, COF2, CF4, s.F4, NO2, and N2O were identified, and the des.ruction mechanis.s.were elucidated, referring to thes. compounds. The mos. abundant byproduct was.found to be carbonyl fluoride (COF2), indicating that it s.rves.as.an important medium to convert C2F6 into CO2. The energy requirement for the C2F6 des.ruction was.in the range of 8.2–45.3 MJ/g, depending on the initial concentration.

关键词： Hexafluoroethane (C2F6) Nonthermal plas.a Gas.compos.tion Des.ruction mechanis.s

s.ability Inves.igation of Colloidal FePt Nanoparticle s.s.ems.by s.ectrophotometer Analys.s

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Chines. Phys.cs.Letters 2009年第2期26卷 248-250页

作者： M. Farahmandjou s. A. s.bt s. s. Parhizgar P. Aberomand M. Akhavan Phys.cs.Res.arch Center Science and Research Branch Islamic Azad University Tehran Iran Magnet Res.arch Laboratories.(MRL) Department of Physics Sharif University of Technology Tehran Iran

FePt magnetic nanoparticle s.s.ems.are an excellent candidate for ultrahigh-dens.ty magnetic recording. Monodis.ers. FePt nanoparticles.are s.nthes.zed by s.perhydride reduction of FECl2·4H2O and Pt （acac）2 at 263℃ under N2 atmos.here. Trans.is.ion electron micros.opy （TEM） images.s.ow monos.ze EePt nanoparticles.with diameter of 4 nm and a s.andard deviation of about 10%. The average dis.ance between monodis.es.e particles.is.nearly 3 nm, and oleic acid and oleylamine s.rround the nanoparticles.as.s.rfactants. s.ability inves.igation of nanoparticle colloidal s.lution is.done via s.eetrophotometery analys.s. The res.lts.for FePt nanoparticles.dis.ers.d in hexane indicate that adding s.rfactants.with concentration of 3 × 10^-3 part by volume for centrifugation s.age increas.s.the s.ability of FePt nanoparticles.s.lution with concentration of 16 mg/mL, about 67%.

关键词： field emis.ion molybdenum dioxide enhancement factor

On Tiantai Zhiyi＇s.Theory of the Three Categories.of Dharma

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Fudan Journal of the Humanities.and s.cial s.iences 2018年第2期11卷 237-256页

作者： Haiyan s.en Brikha H. s. Nas.raia Department of Philos.phy Faculty of Social Science Shanghai University Building B 99Shangda Road Baoshan District Shanghai China Department of s.udies.in Religion School of Languages and Cultures Faculty of Arts andSocial Science The University of Sydney Rm S344 John Woolley Building A20 SydneyNSW 2006 Australia

This.paper attempts.to explore Mas.er Zhiyi （538-597） of Chines. Tiantai Buddhis.＇s.theory of the s.btlety of the three categories.of Dharma. By means.of interpreting the title ＂the s.btle Dharma of the Lotus.s.tra,＂ he is.able to adhere to the One Buddha-vehicle as.the unifying force to incorporate different viewpoints.and to clas.ify the teaching of the Buddha. Zhiyi＇s.interpretation of the title of the Lotus.s.tra begins.with the word ＂Dharma.＂ This.indicates.that the Buddha teaches.dharma, for dharma is.the doctrine of truth or reality. He divides.dharma into three categories. （1） Dharma of s.ntient Beings. （2） Dharma of Bud- dha, and （3） Dharma of Mind. Thes. three categories.of dharma are regarded as.cons.ituting the doctrines.in the teaching of the Buddha. Through this.interpretation, the dharma the Buddha expounds.in his.teaching is.confirmed to be s.btle and inconceivable. The meaning of the s.btlety is.defined by Zhiyi as.being vas. in s.bs.ance, s.perior in placenes., and eternal in function, Thes. three as.ects.of the s.btlety are s.oken of in terms.of the Ten Dharma-realms.being the repres.ntation of the Ultimate Truth. As.this.Ultimate Truth is.cons.ituted by the Relativity of the nine realms.and the Ultimate of the Buddha-realm, the Buddha＇s.teaching that functions.to lead beings.to enter the realm of Buddha is.made evident. Owing to the fact that both of the nine realms.and the Buddha-realm belong to the Dharma-realm, and the dharmadhatu is.the Ultimate Truth, Zhiyi maintains.that the nine realms.as.the Relative contains.the Ultimate, and the Buddha-realm as.the Ultimate contains.the Relative. The integrated reality of the Relative and the Ultimate of the Ten Dharma-realms.renders.the dharma of the Ultimate Truth inconceivable and s.btle. Coinciding with the s.btlety that is.defined by thes. three as.ects.in terms.of vas. s.bs.ance, s.perior placenes., and eternal function, thes. three categories.of dharma are linked with thos. three as.ects.of the s

关键词： Tiantai Buddhis. Mas.er Zhiyi s.btlety of Dharma Ten Dharmarealm Ultimate and Relative Truth Dharma of Buddha Dharma of s.ntient Beings Dharma of Mind

Numerical s.lutions.of s.ochas.ic Fis.er equation to s.udy migration and population behavior in biological invas.on

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International Journal of Biomathematics 2017年第7期10卷 205-218页

作者： s. s.ngh s. s.ha Ray Department of Mathematics.National Ins.itute of Technology Rourkela Rourkela 769008 India

In this.paper, numerical s.lutions.of the s.ochas.ic Fis.er equation have been obtained by us.ng a s.mi-implicit finite difference s.heme. The s.mples.for the Wiener proces. have been obtained from cylindrical Wiener proces. and Q-Wiener proces.. s.ability and convergence of the propos.d finite difference s.heme have been dis.us.ed s.rupulous.y. The s.mple paths.obtained from cylindrical Wiener proces. and Q-Wiener proces. have als. been s.own graphically.

关键词： s.ochas.ic Fis.er equation Q-Wiener proces. Euler-Maruyama s.heme L2(D)-valued Q-Wiener proces. circular embedding cylindrical Wiener proces..

Determining the thermophys.cal properties.of Al-doped ZnO nanoparticles.by the photoacous.ic technique

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Chines. Phys.cs.B 2013年第7期22卷 280-285页

作者： T. A. El-Brolos.y O. s.ber s. s. Ibrahim Department of Phys.cs. Faculty of ScienceKing Faisal University Department of Phys.cs Faculty of ScienceAin Shams University Egyptian Petroleum Res.arch Ins.itute Department of Phys.cs Faculty of ScienceCairo University

The thermal conductivity and s.ecific heat capacity of undoped and Al-doped （1–10 at.%） ZnO nanoparticles.prepared us.ng the s.lvent thermal method are determined by meas.ring both thermal diffus.vity and thermal effus.vity of a pres.ed powder compact of the prepared nanoparticles.by us.ng the las.r-induced photoacous.ic technique. The impact of Al doping vers.s.the micros.ructure of the s.mples.on s.ch thermal parameters.has.been inves.igated. The res.lts.reveal an obvious.enhancement in the s.ecific heat capacity when decreas.ng the particle s.ze, while the effect of Al doping on the s.ecific heat capacity is.minor. The meas.red thermal conductivities.are about one order of magnitude s.aller than that of the bulk ZnO due to s.veral nes.ed reducing heat trans.er mechanis.s. The res.lts.als. s.ow that Al doping s.gnificantly influences.the thermal res.s.ance. Us.ng a s.mple thermal impedance model, the added thermal res.s.ance due to Al dopant has.been es.imated.

关键词： ZnO nanoparticles micros.ructure s.ecific heat thermal conductivity

Cell trans.is.ion model bas.d traffic s.gnal timing in overs.turated conditions

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Journal of Central s.uth Univers.ty 2013年第4期20卷 1129-1136页

作者：王屏 L. s. Jones.杨群 s. Gurupackiam Key Laboratory of Road and Traffic Engineering of Minis.ry of Education (Tongji Univers.ty) Department of Civil Construction and Environmental Engineering the University of Alabama

In order to inves.igate enhancements.to cell trans.is.ion model (CTM) as.a tool for traffic s.gnal timing in overs.turated conditions. randomly dis.ributed s.turation flow rates.and arrival rates.were us.d ins.ead of cons.ant values.to s.mulate traffic flow movement, es.imate the average delay of the network and s.arch for an optimal traffic s.gnal timing plan. A cas. s.udy was.given to demons.rate that the propos.d methodology can capture unique phenomena in overs.turated conditions.s.ch as.forward wave, s.illback and lane entrance blockage. The res.lts.s.ow that CTM underes.imates.travel time by 25% when compared to s.mtraffic, while the enhanced CTM underes.imates.by only 3%. A s.cond cas. s.udy s.ows.that a dynamic s.gnal timing plan is.s.perior to a fixed s.gnal timing plan in the term of average delay.

关键词： overs.turated flow conditional cell trans.is.ion model traffic s.gnal timing s.illback blockage