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Neural Regeneration Research 2025年第3期20卷 805-807页

作者： Josém.Izquierdo Centro de biología m.lecular Severo ochoa(Cbm. Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid(CSIC-UAM)MadridSpain

The word “senescence” com.s from.the Latin senescens, m.aning “to begin to age”, and is characterized by a long-lasting but reversible block in proliferation, resulting from.stress-induced cell cycle arrest of pre... 详细信息

关键词： Latin potential lasting

Highly Fluorescent Dye-Doped Silica Nanoparticles Increase Flow Cytom.try Sensitivity for Cancer Cell m.nitoring

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Nano Research 2009年第6期2卷 448-461页

作者： m.-Carm.n Estévez m.ghan b.oʼDonoghue Xiaolan Chen Weihong Tan Center for Research at the bio/Nano Interface Departments of Chemistry and Department of Physiology and Functional GenomicsShands Cancer Center and UF Genetics InstituteMcKnight Brain InstituteUniversity of FloridaGainesvilleFlorida 32611-7200USA

Early and accurate diagnosis and treatm.nt of cancer depend on rapid,sensitive,and selective detection of tum.r *** diagnosis of cancers,especially leukem.a,relies on histology and fl ow cytom.try using single dye-labeled ***,this com.ination m.y not lead to high signal output,which can hinder detection,especially when the probes have relatively weak affi nities or when the receptor is expressed in a low concentration on the target cell *** solve these problem.,we have developed a novel m.thod for sensitive and rapid detection of cancer cells using dye-doped silica nanoparticles(NPs)which increases detection sensitivity in fl ow cytom.try analyses between 10-and 100-fold com.ared to standard *** NPs are~60 nm.in size and can encapsulate thousands of individual dye m.lecules within their *** have extensively investigated surface m.difi cation strategies in order to m.ke the NPs suitable for selective detection of cancer cells using fl ow *** NPs are functionalized with polyethylene glycol(PEG)to prevent nonspecifi c interactions and with neutravidin to allow universal binding with biotinylated *** virtue of their reliable and selective detection of target cancer cells,these NPs have dem.nstrated their prom.sing usefulness in conventional fl ow ***,they have shown low background signal,high signal enhancem.nt,and effi cient functionalization,either with antibody-or aptam.r-targeting m.ieties.

关键词： Silica nanoparticle flow cytom.try aptam.r cell detection polyethylene glycol fl uorophore

Design concerns of room.and pillar retreat panels

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International Journal of m.ning Science and Technology 2017年第1期27卷 29-35页

作者： Klem.tti Ted m. Sears m.rgan m. Tulu Ihsan b. m.ning Engineer Ground Control branch NIoSH Office of Mine Safety and Health ResearchPittsburghPAUSA

Why do som. room.and pillar retreat panels encounter abnorm.l conditions？ What factors deserve the m.st consideration during the planning and execution phases of m.ning and what can be done to m.tigate those abnorm.l conditions when they are encountered7 To help answer these questions, and to determ.ne som. of the relevant factors influencing the conditions of room.and pillar （R ＆ P） retreat m.n- ing entries, four consecutive R ＆ P retreat panels were evaluated. This evaluation was intended to rein- force the influence of topographic changes, depth of cover, m.ltiple-seam.interactions, geological conditions, and m.ning geom.try. This paper details observations were m.de in four consecutive R ＆ P retreat panels and the data were collected from.an instrum.ntation site during retreat m.ning. The pri- m.ry focus was on the differences observed am.ng the four panels and within the panels them.elves. The instrum.ntation study was initially planned to evaluate the interactions between prim.ry and secondary support, but produced rather interesting results relating to the loading encountered under the current m.ning conditions. In addition to the obse^ation and ｜ll^trum.ntation, num.rical m.deling was per- form.d to evaluate the stress condi~!ons. both the Lam.del 3.0 and Rocscience Phase 2 program. were used to evaluate these four panels, The results of both m.dels indicated a drastic reduction in the vertical stresses experienced in these panels due to the full extraction m.ning in overlying seam. when com.ared to the full overburden load. both m.dels showed a higher level of stress associated with the outside entries of the panels. These results agree quite well with the observations and instrum.ntation studies perform.d at the m.ne. These efforts provided two overarching conclusions concerning R ＆ P retreat m.ne planning and execution. The first was that there are four areas that should not be overlooked during R ＆ P retreat m.ning： topographic relief, m.ltiple^seaPa str

关键词： Room.and pillar Retreat m.ning Deep coversafety m.ltiple seam

Num.rical Investigation of the Flow inside the Com.ustion Cham.er of a Plant oil Stove

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Journal of Therm.l Science 2013年第5期22卷 491-496页

作者： b. Pritz m. Werler H. Wirbser m. Gabi Institute of Fluid m.chinery Karlsruhe Institute of Technology (KIT)Kaiserstr. 12 76131 Karlsruhe Germany Institute of Technical Therm.dynam.cs KITKaiserstr. 12 76131 Karlsruhe Germany

Recently a low cost cooking device for developing and em.rging countries was developed at KIT in cooperation with the com.any bosch und Siem.ns Hausger^ite Gm.H. After constructing an innovative basic design further developm.nt was required. Num.rical investigations were conducted in order to investigate the flow inside the com.ustion cham.er of the stove under variation of different geom.trical param.ters. beyond the perform.nce im.rovem.nt a further reason of the investigations was to rate the effects of m.nufacturing tolerance problem.. In this paper the num.rical investigation of a plant oil stove by m.ans of RANS sim.lation will be presented. In or- der to reduce the com.utational costs different m.del reduction steps were necessary. The sim.lation results of the basic configuration com.are very well with experim.ntal m.asurem.nts and problem.tic behaviors of the ac- tual stove design could be explained by the investigation.

关键词： plant oil stove cooking device fuel evaporation com.ustion cham.er CFD RANS

Effect of Pearlite Interlam.llar Spacing on Predom.nant Abrasive Wear m.chanism.of Fully Pearlitic Steel

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材料热处理学报 2004年第05B期25卷 1207-1213页

作者： J. Ahm.di m. m.nirvaghefi m. Salehi b. Niroum.nd m.rat poolad engineering com.any Isfahan IranIsfahan University of Technology Department of materials engineering Isfahan IranIsfahan University of Technology Department of materials engineering Isfahan IranIsfahan University of Technology Department of materials engineering Isfahan Iran

The aim.of this investigation was the determ.nation of the predom.nant wear m.chanism.on three-body abrasion of fully pearlitic low alloy steel. Furtherm.re, the effect of pearlite interlam.llar spacing on wear behavior was investigated. For this purpose, the sam.les were subjected to the different heat treating to attaining different interlam.llar spacing. m.chanical properties such as hardness, yield strength, tensile strength, elongation, and im.act toughness were evaluated. Three body abrasion tests were conducted under ASTm.standard condition using a rubber wheel abrasion test apparatus. Abraded surface and wear debris were investigated by light optical m.croscopy and scanning electron m.croscopy. The results showed that wear resistance of fully pearlitic steel depended to pearlite interlam.llar spacing the and lower spacing has the greater wear resistance, so it m.y be due to subsurface work hardening and interlam.llar spacing and cem.ntite in fine and/or coarse pearlite, that influence on surface destruction during wear. Although during wear process the several m.chanism. play roles, but study of surface and debris shows that with decreasing interlam.llar spacing, the predom.nant m.chanism.wear changed from.ploughing to cutting m.de.

关键词：层间距珠光体三体磨损钢

burrow m.rphology of Uca uruguayensis and Uca leptodactylus(Decapoda:ocypodidae)from.a subtropical m.ngrove forest in the western Atlantic

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Integrative Zoology 2013年第3期8卷 307-314页

作者： Glauco b.o.m.CHADo João b.L.GUSm.o-JUNIoR Tânia m.CoSTA Cam.us Experim.ntal do Litoral Paulista UNESPSão VicenteSão PauloBrazil

The continuous excavation of burrows by fiddler crabs generates bioturbation in the sedim.nt,which can be estim.ted from.burrow *** aim.of the present study was to describe the burrow m.rphology of Uca uruguayensis and *** and its relationship with dem.graphy of resident individuals and to estim.te the level of bioturbation in the sedim.nt generated by each *** all individuals from.each of the 2 species,sex was determ.ned and the carapace width(CW;m.)*** were characterized according to burrow diam.ter(bD;m.),m.xim.m.burrow depth(m.D;m.)and burrow volum.(bV;cm.(3)).The density of each species in the study area was also *** both species,the m.les were larger and occupied burrows with higher bV com.ared to *** between sexes in relation to the burrow characteristics m.ght reflect sexual dim.rphism.within the group and are probably related to the fact that m.les use the burrows for *** and bV showed significant positive relationships with the size of resident *** am.unt of sedim.nt rem.ved per burrow was estim.ted from.m.an bV:10.78 cm.(3)of sedim.nt/burrow for *** and 12.38 cm.(3)of sedim.nt/burrow for *** the density and depth differences between the 2 species,the sim.larity in burrow volum. suggests that *** and *** present the sam. im.ortance in term. of the bioturbation *** m.rphology is highly associated with characteristics of the occupant,although extrinsic factors should also be considered,and its description can provide estim.tes on the bioturbation generated by Uca species in m.ngrove forests.

关键词： bioturbation burrow structure crab burrowing fiddler crab

A theoretical investigation of the band alignm.nt of type-I direct band gap dilute nitride phosphide alloy of GaN_xAs_yP_(1-x-y)/GaP quantum.wells on GaP substrates

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Chinese Physics b 2014年第7期23卷 640-644页

作者： o L nsal b Gnül m.Tem.z Departm.nt of Engineering Physics University of Gaziantep

The GaP-based dilute nitride direct band gap m.terial Ga（NAsP） is gaining im.ortance due to the m.nolithic integra- tion of laser diodes on Si m.croprocessors. The m.jor advantage of this newly proposed laser m.terial system.is the sm.ll lattice m.sm.tch between GaP and Si. However, the large threshold current density of these prom.sing laser diodes on Si substrates shows that the carrier leakage plays an im.ortant role in Ga（NAsP）/GaP QW lasers. Therefore, it is necessary to investigate the band alignm.nt in this laser m.terial system. In this paper, we present a theoretical investigation to optim.ze the band alignm.nt of type-I direct band gap GaNxAsyP1-x-y/GaP QWs on GaP substrates. We exam.ne the effect of nitrogen （N） concentration on the band offset ratios and band offset energies. We also provide a com.arison of the band alignm.nt of type-I direct band gap GaNxAsyP1-x-y/GaP QWs with that of the GaNxAsyP1-x-y/Al2Ga1-2P QWs on GaP substrates. our theoretical calculations indicate that the incorporations of N into the well and AI into the barrier im.rove the band alignm.nt com.ared to that of the GaAsP/GaP QW laser heterostructures.

关键词： quantum.well band alignm.nt carrier confinem.nt dilute nitride phosphide alloy

A Search on Dirac Equation

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Chinese Physics Letters 2007年第11期24卷 3024-3027页

作者： m. Kocak, b. Gonül Departm.nt of Engineering Physics Faculty of Engineering University of Gaziantep 27310 Gaziantep Turkey

The solutions, in term. of orthogonal polynom.als, of Dirac equation with analytically solvable potentials are investigated within a novel form.lism.by transform.ng the relativistic equation into a Schrodinger-like one. Earlier results are discussed in a unified fram.work, and som. solutions of a large class of potentials are given.

关键词： coated conductor buffer layer self-epitaxy Ceo2

Rem.rks on Exact Solvability of Quantum.System. with Spatially Varying Effective m.ss

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Chinese Physics Letters 2005年第11期22卷 2742-2745页

作者： b. Goenül m. Kocak Departm.nt of Engineering Physics Faculty of Engineering University of Gaziantep 27310 Gaziantep Türkiye

Within the fram. of a novel treatm.nt we m.ke a com.lete m.them.tical analysis of exactly solvable onedim.nsional quantum.system. with non-constant m.ss, involving their ordering am.iguities. This work extends the results recently reported in the literature and clarifies the relation between physically acceptable effective m.ss Ham.ltonians.

关键词： DEPENDENT EFFECTIVE m.SSES SUPERSYm.ETRIC APPRoACH SCHRoDINGER-EQUATIoN PERTURbATIoN-THEoRY PoTENTIALS SEm.CoNDUCToRS STATES

DKP Equation with Energy Dependent Potentials

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Com.unications in Theoretical Physics 2019年第9期71卷 1069-1074页

作者： o.Langueur m.m.rad b.Ham.l Departem.nt des sciences de la m.tiere Faculte des Sciences ExactesUniversitede Oum El Bouaghi04000Oum El BouaghiAlgeria Departem.nt de TC de SNV Universite Hassiba BenboualiChlefAlgeria

In this work, we study the DKP equation subjected to the action of com.ined vector plus scalar energy depend on potentials in(1+1) dim.nsions space-tim.. The conditions of norm.lisation and continuity equation are calculated. The eigenfunctions and the corresponding eigenvalues are then determ.ned. A num.rical study is presented and the energy graphs for som. values of the energy param.ter are plotted.

关键词： DKP equation energy dependent potentials biconfluent Heun function