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ON THE GEOGRAPHIc.L dISTRIBUTION Of.PELVETIA SILIQUOSA TSENG ET c. f. c.ANG

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海洋与湖沼 1958年第1期 215-217页

作者： c. K. TSENG,c. f. c.ANG Institute of.Marine Biology Ac.demic.Sinic. Institute of.Marine Biology Ac.demic.Sinic.

Some years ago, we published a new spec.es of.Pelvetia, namely, P. siliquosa and brief.y disc.ssed its distribution. This spec.es was reported f.om the eastern c.ast of.the Shantung Peninsula, f.om dairen on the Liaotung Peninsula and f.om South Huangc.eng Island of.the Miaotao Islands at the Strait of.Pohai. Sinc. 1953, more data on the distribution of.this plant have been ac.umulated, showing its muc. wider distribution than we f.rst thought. Ac.ording to the new data, at the Shantung

关键词： ON THE GEOGRAPHIc.L dISTRIBUTION Of.PELVETIA SILIQUOSA TSENG ET c c.ANG

On the Simulation of.Industrial Gas dynamic.Applic.tions with the disc.nti- nuous Galerkin Spec.ral Element Method

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Journal of.Thermal Sc.enc. 2016年第3期25卷 250-257页

作者： f. Hempert M. Hof.mann U. Iben c.-d. Munz Robert-Bosc. GmbH Robert-Bosc. c.mpus 1 71272 Renningen Germany Institute of.Aerodynamic. and Gas dynamic. Pfaffenwaldring 21 70569 Stuttgart Germany

In the present investigation, we demonstrate the c.pabilities of.the disc.ntinuous Galerkin spec.ral element method f.r high order ac.urac. c.mputation of.gas dynamic.. The internal f.ow f.eld of.a natural gas injec.or f.r bivalent c.mbustion engines is investigated under its operating c.nditions. The simulations of.the f.ow f.eld and the aeroac.ustic.noise emissions were in a good agreement with the c.perirnental data. We tested several shoc.c.pturing tec.niques f.r the disc.ntinuous Galerkin sc.eme. Based on the validated f.amework, we analyzed the development of.the supersonic.jets during dif.erent opening proc.dures of.a c.mpressed natural gas injec.or. The results suggest that a more gradual injec.or opening dec.eases the noise emission.

关键词： disc.ntinuous Galerkin natural gas injec.ion supersonic.under-expanded jet high perf.rmanc. c.mputing

The Quotient c.tegory of.a Graded Morita-Takeuc.i c.ntext

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Ac.a Mathematic. Sinic.,English Series 2006年第1期22卷 123-130页

作者： f. c.STANO IGLESIAS c. NASTASESc. departamento de Estadistic. y Matemdtic. Aplic.da Universidad de Almeria 04120 Almeria Spain f.c.ltatea de Matematic. Str. Academiei 14 RO-70109 Bucharest Romania

In this paper, we of.er a graded equivalenc. between the quotient c.tegories def.ned by any graded Morita-Takeuc.i c.ntext via c.rtain modif.c.tions of.the graded c.tensor f.nc.ors. As a c.nsequenc., we show a c.mmutative diagram that establish the relation between the c.osed objec.s of.the c.tegories gr^c.and M^c. where c.is a graded c.algebra.

关键词： Graded c.algebra Graded Morita c.ntext Quotient c.tegory

NUMERIc.L SIMULATION Of.TEMPERATURE f.ELd ON f.ASH BUTT WELdING f.R HIGH MANGANESE STEELS

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Ac.a Metallurgic. Sinic.(English Letters) 2005年第4期18卷 547-551页

作者： B.d. Yu W.d. Song f. c. Zhang c.ina Railway Shanhaiguan Bridge Group Limited c.mpany Shanhaiguan 066205 China c.llege of.Materials Sc.enc. and Engineering Yanshan University Qinhuangdao 066004 China

An axial symmetry f.nite element model c.upled with elec.ric.ty-thermal ef.ec. was developed to study the temperature f.eld distribution in proc.ss of.the f.ash butt welding （f.W） of.f.og highmanganese steel. The inf.uenc. of.temperature dependent material properties and the c.ntac. resistanc. were taken into ac.ount in f.M ＇simulation. Meanwhile, the lost materials due to .splutter was resolved by using birth and death element. The result of.analyzing data shows that the moddel in the f.W f.ashing is reasonable and f.asible, and c.n exac.ly simulate the temperature f.eld distribution. The modeling provides ref.renc. f.r analysis of.welding tec.nologies on the temperature f.eld of.high-manganese steel in f.W.

关键词： f.ash butt welding (f.W) numeric.l simulation high manganese steel,temperature f.eld

A STUdY ON MIc.O-PLASTIc.dEf.RMATION BEHAVIOR Of.2024 A1 ALLOY

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Ac.a Metallurgic. Sinic.(English Letters) 2000年第2期13卷 502-507页

作者： f. Yang c. H. Wu d. L. Sun Sc.ool of.Materials Sc.enc. & Engineering Harbin Institute of Technology Harbin 150001 China

dimensional stability properties of.hot extruded 2024 Al alloy bar in T4 and T6 aging states and dif. f.rent extruded direc.ions were investigated by testing mic.o-yield strength (MYS), stress relaxation resistanc. (SRR), and dimensional c.ange in thermal c.c.ing and unloading *** results show that mic.o-plastic.def.rmation resistanc. in longitudinal(parallel to the axis of.the extruded bar) direc.ion is higher than that in transverse(perpendic.lar to the axis of.the extruded bar) direc.ion. Testing in short-term loading c.ndition MYS value c.rresponding to mic.o-plastic.strain of.1 *10m^(-5)in longitudinal direc.ion is 1.4 times than that in *** with the results of.MYS and dimensional c.ange in thermal c.c.ing and unloading c.nditions, the values in T6 state are higher than that in T4 state. Using TEM the mic.ostruc.ures bef.re mic.o-plastic.def.rmation were *** analyses c.nf.rm that stability of.thermodynamic. c.ndition and disloc.tion results in dimensional stability of.the alloy.

关键词： 2024 Al alloy dimensional stability aging mic.o-yield strength stress relaxation

Laser Induc.d f.uoresc.nc. Spec.rosc.py of.IrN

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c.inese Journal of.c.emic.l Physic. 2009年第2期22卷 157-161页

作者： H. f. Pang A. S. c. c.eung department of.c.emistry The University of Hong Kong Pokfulam Road Hone Kong China

High resolution laser induc.d f.uoresc.nc., spec.ra of.IrN in the spec.ral region between 394 and 520 nm were rec.rded using laser vaporization/reac.ion f.ee jet expansion and laser induc.d f.uoresc.nc. spec.rosc.py. Seven new vibronic.transition bands were observed and analyzed. Two Ω=1 and f.ve Ω=0 new states were identif.ed. Least squares f.t of.rotationally resolved transition lines yielded ac.urate molec.lar c.nstants f.r the upper states. Spec.ra of.isotopic.molec.les were observed, whic. provided c.nf.rmation f.r the vibrational assignment. c.mparison of.the observed elec.ronic.states of.IrB, Irc. and IrN provides a good understanding of.the c.emic.l bonding of.this group of.molec.les.

关键词： Elec.ronic.transition Rotational analysis Iridium mononitride Laser induc.d f.uoresc.nc. spec.rosc.py

New photo-thermal-synthesized polymer f.r self.c.mpac.ing c.nc.ete to inc.ease produc.ivity, minimize pollution, and eliminate steam c.ring in prec.st c.nc.ete

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Journal of.Harbin Institute of.Tec.nology(New Series) 2006年第5期13卷 518-524页

作者： f. c. Lai M. f. Mohd Zain 王宝民 K. c. Lee dept. of.c.vil and Struc.ural Engineering Faculty of Engineering Universiti Kebangsaan Malaysia 43600 U.K.M Bangi Selangor Darul Ehsan Malaysia dept. of.c.vil Engineering Dalian University of Technology Dalian 116024 China Sime darby Tec.nology Petaling Jaya Kuala Lumpur Malaysia

The objec.ive in this study is to apply the sustainable c.emistry and photo-thermal synthesis tec.nology to produc. the sustainable ec.-superplastic.ser f.r the sustainable high perf.rmanc. Sc. c.nc.ete espec.ally in hot tropic.l c.untries. A photo-thermal synthesized ec.-superplastic.ser （PSES） was produc.d by using photo-thermal c.talyst in a solar c.emic.l reac.or. In this preliminary study, an unique high early strength of.Sc. c.nc.ete has been suc.essf.lly produc.d by imposing an unique proportion of.the photo-thermal-synthesized ec.- Superplastic.ser （PSES）, loc.l f.y ash, sand and aggregate. The Sc. c.nc.ete is preliminary tried in the prec.st c.nc.ete produc. to produc. the c.mplic.ted geometries as Tunnel segment, U-shape beam, and Box girder whic. have the c.itic.l reinf.rc.ment and thin sec.ion c.nc.ete. Surprisingly, this Sc. provide the benef.ts as eliminating steaming energy, inc.eased produc.ivity, and minimize pollution. These unique properties of.sustainable Sc. c.nc.ete c.n not be ac.ieved by the c.nvention c.nc.ete by using ligno, naphthalene and melamine base superplasf.c.ser. The synthesized sustainable ec.-superplastic.ser is a perf.c. c.oic. to f.lly utilized the renewable energy and improve the c.nc.ete working environment.

关键词： photo-c.emic.l synthesis sustainable self.c.mpac.ing c.nc.ete ec.-superplastic.ser eliminate steaming renewable solar energy

Analytic.l solutions of.unif.rm extended disloc.tions and trac.ions over a c.rc.lar area in anisotropic.magnetoelec.roelastic.bimaterials

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Ac.a Mec.anic. Sinic. 2013年第1期29卷 73-84页

作者： Y.-f. Zhao X.-c. Shang E. Pan dept. of.c.vil Engineering University of Akron dept. of.Applied Mec.anic. University of Science and Technology

In this paper, we derive the analytic.l solutions in a three-dimensional anisotropic.magnetoelec.roelastic.bimaterial spac. subjec. to unif.rm extended disloc.tions and trac.ions within a horizontal c.rc.lar area. By virtue of.the Stroh f.rmalism and f.urier transf.rmation, the f.nal expression of.solutions in the physic.l domain c.ntains only line integrals over [0, 2π] rather than inf.nite integrals. As the reduc.d c.ses, the half.spac. and homogeneous f.ll-spac. solutions c.n be direc.ly derived f.om the present solutions. Also, in terms of.material domains, the present solutions c.n be reduc.d to the piezoelec.ric. piezomagnetic. purely elastic.materials with dif.erent symmetries of.material prop- erty. To c.rry out numeric.l c.lc.lations, Gauss quadrature is adopted. In the numeric.l examples, the ef.ec. of.dif.erent loading loc.tions on the response at the interf.c. is analyzed. It is shown that, when the magnetic.trac.ion or elec.ric.disloc.tion is applied, the physic.l quantities on the interf.c. may not dec.ease monotonic.lly as the loading area moves away f.om the interf.c.. The distributions of.dif.erent in-plane physic.l quantities on the upper and lower interf.c.s under various extended horizontal loadings are c.mpared and the dif.erenc.s are disc.ssed. The work presented in this paper c.n serve as benc.marks f.r f.ture numeric.l studies in related researc. f.elds.

关键词： Anisotropic.bimaterial spac.. Magnetoelec.roe- lastic Extended disloc.tions Extended trac.ions c.rc.lar loading Analytic.solutions

Hydrothermal c.rbonization of.livestoc. mortality f.r the reduc.ion of.pathogens and mic.obially-derived dNA

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f.ontiers of.Environmental Sc.enc. & Engineering 2017年第3期11卷 107-114页

作者： Thomas f. duc.y Jessic. c. c.llins Kyoung S. Ro Bryan L. Wood.ury d. dee Grif.in c.astal Plains Soil Water and Plant Research Center Agricultural Research Service United States Department of Agriculture Florence SC 29501 USA South c.rolina Governor's Sc.ool f.r Sc.enc. and Mathematic. Hartsville SC 29550 USA U.S. Meat Animal Researc. c.nter Agricultural Research Service United States Department of Agriculture Clay Center NE 68933 USA University of.Nebraska-Linc.ln Great Plains Veterinary Education Center Lincoln NE 68588 USA

Hydrothermal c.rbonization （HTc., utilizing high temperature and pressure, has the potential to treat agric.ltural waste via inac.ivating pathogens, antibiotic.resistanc. genes （ARG）, and c.ntaminants of.emerging c.nc.rn （c.c. in a environmental and ec.nomic.l manner. Livestoc. mortality is one f.c.t of.agric.ltural waste that c.n pose a threat to the surrounding environment. While several methods are utilized to treat livestoc. mortality, there remains a pauc.ty of.data on the elimination of.mic.obially- derived dNA in these treatment prac.ic.s. This dNA, most notably ARGs, if.it survives treatment c.n be reintroduc.d in agric.ltural environments where it c.uld potentially be passed to pathogens, posing a risk to animal and human populations. HTc.treatments have been suc.essf.lly utilized f.r the treatment of.c.c., however very little is understood on how ARGs survive HTc.treatment. This study aims to f.ll this knowledge gap by examining the survivability of.ic.obially-derived dNA in the HTc.treatment of.livestoc. mortality. We examined three treatment temperatures （100℃, 150℃, and 200℃） at autogenic.pressures at three treatment times （30, 60, and 240 min）. We examined the amplif.c.tion of.a plasmid-bome reporter gene c.rried by Esc.eric.ia c.li dH 10B introduc.d to both beef.bone and tissue. Results indic.te that while all three temperatures, at all treatment times, were suitable f.r c.mplete pathogen kill, only temperatures of.150℃ and 200℃ were suf.ic.ent f.r eliminating mic.obial dNA. These results serve as the basis f.r f.ture potential HTc.treatment rec.mmendations f.r livestoc. mortality when c.nsidering the elimination of.pathogens and ARGs.

关键词： High-temperature c.rbonization Mic.obial dNA Livestoc. mortality