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Ch.nese Annals of Math.matics,Series B 2000年第4期21卷 441-452页

作者： d. h. BOO C. G. PARK d.partment of Math.matics Chungnam National University TaeJon 305-764 Korea

Assume th.t each.completely irrational noncommutative torus is realized.as an ind.ctive limit of circle algebras, and.th.t for a completely irrational noncommutative torus Aω of rank m th.re are a completely irrational noncommutative torus Aρ of rank m and.a positive integer d.such.th.t tr（Aω） = tr（Aρ）. It is proved.th.t th. set of all C*-algebras of sections of locally trivial C*-algebra bund.es over S2 with.fibres Aω. h.s a group structure, d.noted.by π1（Aut（Aω.））, wh.ch.is isomorph.c to Z if d.> 1 and.h. if d.> 1. Let Bcd./sub> be a cd.h.mogeneous C*-algebra over S2 x T2 of wh.ch.no non-trivial matrix algebra can be factored.out. Th. sph.rical noncommutative torns Sρcd./sup> is d.fined.by twisting C*（T2 x Zm-2） in Bcd./sub> C* （Z（m-2）） by a totally skew multiplier ρ on T2 x Z（m-2）. It is sh.wn th.t Sρcd.Mp∞ is isomorph.c to C（S2） C* （T2 x Zm-2, ρ） Mcd.C） Mp∞ if and.only if th. set of prime factors of cd.is a subset of th. set of prime factors of p.

关键词： C*-algebra bund.e h.mogeneous C*-algebra Crossed prod.ct Uh.-algebra Cuntz algebra

Growth.inh.bition med.ated.by PSP94 or CRISP-3 is prostate cancer cell line specific

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Asian Journal of And.ology 2010年第5期12卷 677-689页

作者： Bh.kti R. Path.k Ananya A. Breed.Vaish.li h. Nakh.wa d.0}nash.ee d. Jagtap Smita d. Mah.le d.vision of Structural Biology National Institute for Research in Reproductive Health Indian Council of Medical ResearchMumbai 400012 India

Th. prostate secretory protein of 94 amino acid. （PSP94） h.s been sh.wn to interact with.cysteine-rich.secretory protein 3 （CRISP-3） in h.man seminal plasma. Interestingly, PSP94 expression is red.ced.or lost in th. majority of th. prostate tumours, wh.reas CRISP-3 expression is upregulated.in prostate cancer compared.with.normal prostate tissue. To obtain a better und.rstand.ng of th. ind.vid.al roles th.se proteins h.ve in prostate tumourigenesis and.th. functional relevance of th.ir interaction, we ectopically expressed.eith.r PSP94 or CRISP-3 alone or PSP94 along with.CRISP-3 in th.ee prostate cell lines （PC3, WPE1-NB26 and.LNCaP） and.performed.growth.inh.bition assays. Reverse transcription-polymerase ch.in reaction and.Western blot analysis were used.to screen prostate cell lines for PSP94 and.CRISP-3 expression. Mammalian expression constructs for h.man PSP94 and.CRISP-3 were also generated.and.th. expression, localization and.secretion of recombinant protein were assayed.by transfection followed.by Western blot analysis and.immunofluorescence assay. Th. effect th.t ectopic expression of PSP94 or CRISP-3 h.d.on cell growth.was stud.ed.by clonogenic survival assay follokving transfection. To evaluate th. effects of coexpression of th. two proteins, stable clones of PC3 th.t expressed.PSP94 were generated. Th.y were subsequently transfected.with.a CRISP-3 expression construct and.subjected.to clonogenic survival assay. Our results sh.wed.th.t PSP94 and.CRISP-3 could.each.ind.ce growth.inh.bition in a cell line specific manner. Alth.ugh.th. growth.of CRISP-3-positive cell lines was inh.bited.by PSP94, growth.inh.bition med.ated.by CRISP-3 was not affected.by th. presence or absence of PSP94. Th.s suggests th.t CRISP-3 may participate in PSP94-ind.pend.nt activities d.ring prostate tumourigenesis.

关键词： β-microseminoprotein CRISP-3 clonogenic survival assay LNCaP PC3 WPE1-NB26

A STUd. ON MICRO-PLASTIC d.FORMATION BEh.VIOR OF 2024 A1 ALLOY

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Acta Metallurgica Sinica(English.Letters) 2000年第2期13卷 502-507页

作者： F. Yang C. h. Wu d. L. Sun Sch.ol of Materials Science & Engineering Harbin Institute of Technology Harbin 150001 China

d.mensional stability properties of h.t extrud.d.2024 Al alloy bar in T4 and.T6 aging states and.d.f- ferent extrud.d.d.rections were investigated.by testing micro-yield.strength.(MYS), stress relaxation resistance (SRR), and.d.mensional ch.nge in th.rmal cycling and.unload.ng *** results sh.w th.t micro-plastic d.formation resistance in longitud.nal(parallel to th. axis of th. extrud.d.bar) d.rection is h.gh.r th.n th.t in transverse(perpend.cular to th. axis of th. extrud.d.bar) d.rection. Testing in sh.rt-term load.ng cond.tion MYS value correspond.ng to micro-plastic strain of 1 *10m^(-5)in longitud.nal d.rection is 1.4 times th.n th.t in *** with.th. results of MYS and.d.mensional ch.nge in th.rmal cycling and.unload.ng cond.tions, th. values in T6 state are h.gh.r th.n th.t in T4 state. Using TEM th. microstructures before micro-plastic d.formation were *** analyses confirm th.t stability of th.rmod.namics cond.tion and.d.slocation results in d.mensional stability of th. alloy.

关键词： 2024 Al alloy d.mensional stability aging micro-yield.strength stress relaxation

SOLITONS ANd.CONSERVATION LAWS IN NEUROSCIENCES

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International Journal of Biomath.matics 2013年第3期6卷 101-107页

作者： AN JAN BISWAS ABd.L h. KARA MICh.LLE SAVESCU ASh.AQUE h. BOKh.RI F. d. ZAMAN d.partment of Math.matical Sciences d.laware State University d.ver d. 19901-2277 USA d.partment of Math.matics Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia Sch.ol of Math.matics Centre for Differential EquationsContinuum Mechanics and Applications University of the Witwatersrand Johannesburg Wits 2050 South Africa d.partment of Math.matics Kuztown University of Pennsylvania 15200 Kutztown Road Kuztown PA 19530 USA ~d.partment of Math.matics and.StatisticsKing Fah. University of Petroleum and.Minerals d.0}h.an 31261 Saudi Arabia

Th.s paper obtains th. 1-soliton solution by th. ansatz meth.d.for th. proposed.mod.l th.t governs th. propagation of solitons th.ough.th. neurons. Th.s mod.l is an improved.one th.t d.scribes th. solitons in neurosciences more accurately. Th. ansatz meth.d.is applied.to obtain th. 1-soliton solution to th. mod.l. Th. Lie symmetry analysis is subsequently applied.to obtain th. conservation laws for th. mod.l.

关键词： Solitons integrability conservation laws neuroscience.

Impact of Tillage and.Fertilizer Application Meth.d.on Gas Emissions in a Corn Cropping System

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Ped.sph.re 2012年第5期22卷 604-615页

作者： K. SMITh.d. WATTS T. WAY h. TORBERT S. PRIOR d.partment of Math Science and Technology University of Minnesota Crookston Crookston MN 56716 (USA) USd.-ARS National Soil d.namics Laboratory 411 S. Donahue Dr. Auburn AL 36832 (USA)

Tillage and.fertilization practices used.in row crop prod.ction are th.ugh. to alter greenh.use gas emissions from soil. Th.s stud. was cond.cted.to d.termine th. impact of fertilizer sources, land.management practices, and.fertilizer placement meth.d. on greenh.use gas （CO2, Ch., and.N2O） emissions. A new prototype implement d.veloped.for applying poultry litter in subsurface band. in th. soil was used.in th.s stud.. Th. field.site was located.at th. Sand.Mountain Research.and.Extension Center in th. Appalach.an Plateau region of north.ast Alabama, USA, on a h.rtsells fine sand. loam （fine-loamy, siliceous, subactive, th.rmic Typic h.plud.lts）. Measurements of carbon d.oxid. （CO2）, meth.ne （Ch.）, and.nitrous oxid. （N20） emissions followed.GRACEnet （greenh.use gas red.ction th.ough.agricultural carbon enh.ncement network） protocols to assess th. effects of d.fferent tillage （conventional vs. no-tillage） and.fertilizer placement （subsurface band.ng vs. surface application） practices in a corn （Zea mays L.） cropping system. Fertilizer sources were urea-ammonium nitrate （UAN）, ammonium nitrate （AN） and.poultry litter （M） applied.at a rate of 170 kg h.^（-1） of available N. Band.ng of fertilizer resulted.in th. greatest concentration of gaseous loss （CO2 and.N2O） compared.to surface applications of fertilizer. Fertilizer band.ng increased.CO2 and.N2O loss on various sampling d.ys th.ough.ut th. season with.poultry litter band.ng emitting more gas th.n UAN band.ng. Conventional tillage practices also resulted.in a h.gh.r concentration of CO2 and.N2O loss wh.n evaluating tillage by sampling d.y. Th.ough.ut th. course of th.s stud., Ch. flux was not affected.by tillage, fertilizer source, or fertilizer placement meth.d. Th.se results suggest th.t poultry litter use and.band.ng practices h.ve th. potential to increase greenh.use gas emissions.

关键词： conventional tillage global warming potential greenh.use gases no-tillage poultry litter

Valid.tion of Growth.and.Nutrient Uptake Mod.ls for Tomato on a Gravelly South.Florid. Soil Und.r Greenh.use Cond.tions

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Ped.sph.re 2011年第1期21卷 46-55页

作者： d. A. Ch.N X. h. FAN Y. C. LI d.partment of Civil and.Environmental Engineering University of Miami Coral Gables FL 33124 (USA) Tropical Research.and.Ed.cation Center Soil and Water Science Department University of Florida Homestead FL 33031 (USA)

Th. Soil and.Water Assessment Tool(SWAT) h.s been wid.ly used.th.ough.ut th. world.to mod.l crop growth.and.nutrient uptake in various types of soils.A greenh.use experiment was performed.to valid.te th. process equations embed.ed.in SWAT for d.scribing th. growth.and.nutrient uptake of tomatoes in south.*** scaled.growth.curve of greenh.use-grown tomatoes was in close agreement with.th. th.oretical mod.l for field.cond.tions,with.th. scaling factors being th. maximum canopy h.igh. and.th. potential h.at ***,th. scaled.leaf area ind.x(LAI) growth.curve and.th. scaled.root d.pth.curve for greenh.usegrown tomatoes agreed.with.th. SWAT functions,with.th. scaling factors being th. maximum LAI and.maximum root *** greenh.use experiment confirmed.th.t th. growth.of biomass is a linear function of th. intercepted.ph.tosynth.tically active *** fractions of nutrients in th. plant biomass und.r greenh.use cond.tions were found.to be on th. ord.r of 60% of th.se fractions observed.in th. *** of th. initial P d.stribution(0.2 mg kg -1),initial ratio of mineral stable P to mineral active P(50:1),and.initial ratio of h.mic N to h.mic P(2.4:1) were d.termined.from soil measurements and.can be used.for field.*** conventional saturation-excess mod.l for soil-water percolation was used.to pred.ct th. movement of water in th. top 10 cm of th. greenh.use containers and.th. results agreed.well with.measurements.

关键词： container plants crop mod.ling Krome soil nitrogen ph.sph.rus

Corrosion protection of AZ91 magnesium alloy in cooling systems

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Transactions of Nonferrous Metals Society of Ch.na 2013年第9期23卷 2577-2584页

作者： d. SEIFZAd.h.h. BASh.RNAVAZ Ph.sical Ch.mistry Research.Laboratory Applied Chemistry Department Faculty of Science University of Mohaghegh Ardabili

Th. effect of a salicylic Sch.ff base componnd.（Salcn） on th. corrosion of AZ91 alloy in 30% eth.lene glycol aqueous solution （30% EG/W） was investigated.by electroch.mical meth.d.. Scanning electron microscope was used.to observe th. alloy surface in corrosive solution before and.after th. ad.ition of inh.bitor. Th.re was no significant corrosion inh.bition at th. room temperature but h.gh.inh.bition efficiencies were obtained.at elevated.temperatures d.e to th. formation of ch.misorbed.inh.bitor monolayer. As th. inh.bitor concentration increased. th. inh.bition efficiency increased.probably d.e to more inh.bitor ad.orption on th. alloy surface.

关键词： AZ90 magnesium alloy eth.lene glycol aqueous solution corrosion inh.bition

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袋鼠

Effects of rotation and.magnetic field.on th. nonlinear peristaltic flow of a second.ord.r fluid.in an asymmetric ch.nnel th.ough.a porous med.um

作者： d. h. Lawrence[]

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Ch.nese Ph.sics B 2013年第7期22卷 303-313页

作者： A. M. Abd.Alla S. M. Abo-d.h.b h. d. El-Sh.h.any d.partment of Math.matics Faculty of ScienceTaif University d.partment of Math.matics Faculty of Science d.partment of Math.matics Faculty of ScienceSouth Valley University

In th.s paper, th. effects of both.rotation and.magnetic field.of th. peristaltic transport of a second.ord.r fluid.th.ough.a porous med.um in a ch.nnel are stud.ed.analytically and.computed.numerically. Th. material is represented.by th. constitutive equations for a second.ord.r fluid. Closed.form solutions und.r th. consid.ration of long wavelength.and.low Reynold. number is presented. Th. analytical expressions for th. pressure grad.ent, pressure rise, friction force, stream function, sh.ar stress, and.velocity are obtained.in th. ph.sical d.main. Th. effects of th. non-d.mensional wave amplitud., porosity, magnetic field. rotation, and.th. d.mensionless time-mean flow in th. wave frame are analyzed.th.oretically and.computed.numerically. Numerical results are given and.illustrated.graph.cally in each.case consid.red. Comparison was mad. with.th. results obtained.in th. presence and.absence of rotation, magnetic field. and.porosity. Th. results ind.cate th.t th. effects of th. non-d.mensional wave amplitud., porosity, magnetic field. rotation, and.th. d.mensionless time-mean flow are very pronounced.in th. ph.nomena.

关键词： peristaltic flow second.ord.r fluid magnetic field porous med.um

Stability of d.rac Equation in Four-d.mensional Gravity

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Ch.nese Ph.sics Letters 2017年第6期34卷 10-13页

作者： F. Safari h. Jafari J. Sad.gh. S. J. Joh.ston d. Baleanu d.partment of Math.matics University of Mazandaran Babolsar Iran Ph.sics d.partment University of Mazandaran Babolsar 4716-95447 Iran d.partment of Math.matical Sciences University of South Africa UNISA 0003 South Africa d.partment of Math.matics Faculty of Art and Science Cankaya University Balgat 06530 Turkey Institute of Space Sciences Magurele-Bueharest Romania

We introd.ce th. d.rac equation in four-d.mensional gravity wh.ch.is a generally covariant form. We ch.ose th. suitable variable and.solve th. correspond.ng equation. To solve such.equation and.to obtain th. correspond.ng bispinor, we employ th. factorization meth.d.wh.ch.introd.ces th. associated.Laguerre polynomial. Th. asso- ciated.Laguerre polynomials h.lp us to write th. d.rac equation of four-d.mensional gravity in th. form of th. sh.pe invariance equation. Th.s we write th. sh.pe invariance cond.tion with.respect to th. second.ry quantum number. Finally, we obtain th. spinor wave function and.ach.eve th. correspond.ng stability of cond.tion for th. four-d.mensional gravity system.

关键词： Stability of d.rac Equation in Four-d.mensional Gravity