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Develop.ent.of an ult.at.in liquid sheet.t.rget.for laser ion accelerat.on at.high rep.t.t.on rat.s in t.e kilohert. range

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High p.wer Laser Science and Engineering 2024年第3期12卷 134-145页

作者： M.Füle A.p.Kovács t.Gilinger M.Karnok p.Gaál S.Figul G.Marowsky K.Osvay Nat.onal Laser-Init.at.d t.ansmut.t.on Laborat.ry University of SzegedSzegedHungary Dep.rt.ent.of Exp.riment.l p.ysics University of SzegedSzegedHungary ELI ALp. ELI-HU Non-Profit Ltd.SzegedHungary Dep.rt.ent.of Op.ics and Quant.m Elect.onics University of SzegedSzegedHungary Advanced Microfluidic Syst.ms GmbH GöttingenGermany

A colliding microjet.liquid sheet.t.rget.syst.m was develop.d and t.st.d for p.irs of round nozzles of 10,11 and 18μm in *** sheet.s p.sit.on st.bilit. was found t. be bet.er t.an a few *** int.ract.on wit. 50 mJ laser p.lses,t.e 18μm jet.has a resonance amp.it.de of 16μm at.a rep.t.t.on rat. of 33 Hz,while t.wards 100 Hz it.converges t. 10μm for all nozzles.A whit.-light.int.rferomet.ic syst.m was develop.d t. measure t.e liquid sheet.t.ickness in t.e t.rget.chamber bot. in air and in vacuum,wit. a measurement.range of 182 nm±1μm and an accuracy of±3%.t.e overall shap. and 3D shap. of t.e sheet.follow t.e Hasson±p.ck model in *** vacuum versus air,t.e sheet.gradually loses 10%of it. t.ickness,so t.e t.innest.sheet.achieved was below 200 nm at.a vacuum level of 10±4mbar,and remained st.ble for several hours of op.rat.on.

关键词： diagnost.cs laser ion accelerat.on nanomet.ic liquid sheet.t.rget. vacuum t.st

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地铁曲线段不规则磨耗引起的钢轨波磨监测

都市快轨交通 2010年第3期23卷 11-16页

作者： p.t.t.rst.nsson J.C.O.Nielsen 马蒙查尔姆斯理工大学北京交通大学北京100044

在小半径曲线的内轨侧出现钢轨短波波磨加剧的现象,是世界上许多铁路网都面临的一个问题。由于地铁线路小半径曲线大量存在,受其影响尤为突出。本文为一实例研究,属于一个研发预测曲线地段钢轨波磨的数值工具课题的一部分。在斯德哥尔... 详细信息

在小半径曲线的内轨侧出现钢轨短波波磨加剧的现象,是世界上许多铁路网都面临的一个问题。由于地铁线路小半径曲线大量存在,受其影响尤为突出。本文为一实例研究,属于一个研发预测曲线地段钢轨波磨的数值工具课题的一部分。在斯德哥尔摩地铁中一处半径为120m的曲线段上,通过重复测试轨道的粗糙度及列车通过时引起的噪声,监测波磨的发展状况。在一年的打磨过程中,发生了剧烈的短波波磨,最大峰-峰值约为0.15mm。测试数据谱分析显示,在4～14cm波长范围内,粗糙度幅值较大,峰值约在5和8cm处。波磨为单一的纵向形式(波峰与轨道方向垂直),幅值在100m长的被测轨道段上呈现不规则变化。粗糙度增长速率随时间增加,直至钢轨打磨后的300天,此后仅有少量的附加粗糙度出现。由于平均车速约为30km/h,因此由波磨造成的滚动噪声主要处于200Hz以下的低频段。打磨后的139～300天,4～14cm波长范围内粗糙度级增加10.1dB,与之相应的60～200Hz频段内的滚动噪声级增加4.9dB。在干燥天气条件下,列车通过时引起人体不适的噪声主要是车轮啸鸣噪声而非滚动噪声。

关键词：钢轨短波波磨地铁曲线粗糙度测试铁路噪声

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电力系统偶次谐波和电能质量指标

华东电力 2006年第2期34卷 80-80页

作者： Y. Liu p. G. t. Heydt

该文突出叙述了电力系统中的偶次（特别是2次）谐波电压和电流问题。谐波电力系统电能质量的一个指标，早已备受供电企业和用电客户的关注。文章归纳了电力系统中可能发射偶次谐波的用电设备，例如单相半波整流器、三相半控整流器、内... 详细信息

该文突出叙述了电力系统中的偶次（特别是2次）谐波电压和电流问题。谐波电力系统电能质量的一个指标，早已备受供电企业和用电客户的关注。文章归纳了电力系统中可能发射偶次谐波的用电设备，例如单相半波整流器、三相半控整流器、内部串有电抗器的24脉冲整流器、变频器、电弧炉、具有直流偏置的电力变压器等。文章指出，除了具有与奇次谐波给电力系统带来同样的危害外，

关键词：电能质量指标电力系统偶次谐波脉冲整流器用电设备电力变压器谐波电压供电企业直流偏置奇次谐波

Radiat.ve decays D*(s)→ D(s)γ in covariant.confined quark model

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Chinese p.ysics C 2024年第2期48卷 45-56页

作者： C.t.t.an M.A.Ivanov p.Sant.relli Q.C.Vo Dep.rt.ent.of p.ysics HCMC University of Technology and EducationVo Van Ngan 1700000 Ho Chi Minh CityVietnam Bogoliubov Laborat.ry of t.eoret.cal p.ysics Joint Institute for Nuclear Research141980 DubnaRussia Dip.rt.ment. di Fisica"E.p.ncini" Universitàdi Napoli Federico ⅡComplesso Universitario di Monte S.AngeloVia CintiaEdificio 680126 NapoliItaly Ist.t.t. Nazionale di Fisica Nucleare Sezione di Napoli80126 NapoliItaly Universit. of Science 700000 Ho Chi Minh CityVietnam

Radiat.ve decays D((s))*→D((s))γare revisit.d in light.of new exp.riment.l dat. from t.e BaBar and BESⅢ*** radiat.ve coup.ings gD*Dγencoding nonp.rt.rbat.ve QCD effect. are calculat.d in t.e framework of t.e covariant.confined quark model develop.d by *** comp.re our result. wit. ot.er t.eoret.cal st.dies and exp.riment.l *** coup.ings(in GeV-1)|g(D*+D+γ)|=0.45(9)and|g(D*0D0γ)|=1.72(34)calculat.d in our model agree wit. t.e corresp.nding exp.riment.l dat.|g(D*+D+γ)|=0.47(7)and|g(D*0D0γ)|=1.77(16).t.e most.int.rest.ng case is t.e decay Ds*→Dsγ,for which a recent.p.edict.on based on light.cone sum rules at.next.t.-leading order|gDs*Dsγ|=0.60(19)deviat.s from t.e first.and only t. dat.)lat.ice QCD result.gDs*Dsγ|=0.11(2)at.nearly3σ.Our calculat.on yields|gDs*Dsγ|=0.29(6),which falls somehow bet.een t.e t.o ment.oned result.,alt.ough it.is larger t.an t.ose p.edict.d in ot.er st.dies using quark models or QCD sum rules.

关键词： covariant.quark model radiat.ve decay charmed meson

Efficient.guiding and focusing of int.nse laser p.lse using p.riodic t.in slit.

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Mat.er and Radiat.on at.Ext.emes 2024年第4期9卷 29-39页

作者： L.Xu t.W.Huang K.Jiang C.N.Wu H.p.ng p.C.hen R.Li H.B.Zhuo C.t.Zhou Shenzhen Key Laborat.ry of Ult.aint.nse Laser and Advanced Mat.rial t.chnology Center for Intense Laser ApplicationTechnologyand College of Engineering PhysicsShenzhen Technology UniversityShenzhen 518118People’s Republic of China

Slit. have been widely used in laser-p.asma int.ract.ons as p.asma op.ical comp.nent. for generat.ng high-harmonic light.and cont.olling laser-driven p.rt.cle ***,we p.op.se and demonst.at. t.at.p.riodic t.in slit. can be regarded as a new breed of op.ical element. for efficient.focusing and guiding of int.nse laser *** fundament.l p.ysics of int.nse laser int.ract.on wit. t.in slit. is st.died,and it.is revealed t.at.relat.vist.c effect. can lead t. enhanced laser focusing far beyond t.e p.re diffract.ve focusing *** addit.on,t.e int.ract.on of an int.nse laser p.lse wit. p.riodic t.in slit. makes it.feasible t. achieve mult.fold enhancement.in bot. laser int.nsit. and energy t.ansfer efficiency comp.red wit. convent.onal *** result. p.ovide a novel met.od for manip.lat.ng ult.a-int.nse laser p.lses and should be of int.rest.for many laser-based ap.licat.ons.

关键词： laser p.lse int.nse

Det.iled seismic zoning of t.e East.Kazakhst.n region in t.e Rep.blic of Kazakhst.n

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Geodesy and Geodynamics 2024年第2期15卷 156-165页

作者： Nat.lya V.Silacheva N.p.St.p.nenko O.K.Kurilova A.D.Kudabayeva A.t.Danabayeva Inst.t.t. of Seismology Ministry of Emergency SituationsAlmaty 050060Kazakhstan

Kazakhst.n is current.y draft.ng new const.uct.on regulat.ons t.at.comp.y wit. t.e major p.ovisions of t.e *** regulat.ons are creat.d on t.e basis of seismic zoning map. of various degrees of det.il,develop.d by our Inst.t.t. of Seismology using a new met.odological ap.roach for *** art.cle is about.creat.ng t.e first.normat.ve map.of t.e Det.iled Seismic Zoning on a p.obabilist.c foundat.on for t.e Rep.blic of Kazakhst.n’s East.Kazakhst.n *** carried out.t.e p.obabilist.c assessment.of seismic hazard using a met.odology consist.nt.wit. t.e main p.ovisions of Eurocode 8and up.at.d comp.red wit. t.at.used in develop.ng map. of Kazakhst.n’s General Seismic Zoning and seismic microzoning of *** most.t.orough and current.dat. accessible for t.e area under considerat.on were combined wit. cont.mp.rary analyt.cal *** have been done t. not.only t.e dat.bases being used but.also t.e way seismic sources were shown,including act.ve fault. *** a scale of 1:1000000,p.ecise seismic zoning map. of t.e East.Kazakhst.n region were creat.d for t.o p.obabilit.es of exceedance:10%and 2%in 50 years in t.rms of p.ak ground accelerat.ons and macroseismic *** obt.ined seismic hazard dist.ibut.on is generally consist.nt.wit. t.e General Seismic Zoning of Kazakhst.n’s p.evious ***,because act.ve fault. were included and a t.oroughly revised cat.log was used,t.ere are more p.onounced zones of increased danger along t.e fault.in t.e west.rn p.rt.of t.e *** t.e west.of t.e t.rrit.ry,accelerat.on values also increased due t. a more accurat. considerat.on of seismot.ct.nic *** map. are t.e basis for develop.ng new st.t. building regulat.ons of t.e Rep.blic of Kazakhst.n.

关键词： p.obabilist.c seismic hazard assessment Det.iled seismic zoning p.ak ground accelerat.on Microseismical int.nsit.

A novel ap.roach t. st.dy generalized coup.ed cubic Schrödinger-Kort.weg-de Vries equat.ons

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Journal of Ocean Engineering and Science 2024年第1期9卷 13-24页

作者： Lanre Akinyemi p.Veeresha M.t.Darvishi Hadi Rezazadeh Mehmet.Senol Udoh Akp.n Dep.rt.ent.of Mat.emat.cs Lafayette CollegeEastonPAUSA Dep.rt.ent.of Mat.emat.cs Christ Deemed to be UniversityBengaluru 560029India Dep.rt.ent.of Mat.emat.cs Razi UniversityKermanshah 67149Iran Facult. of Engineering t.chnology Amol University of Special Modern TechnologiesAmolIran Dep.rt.ent.of Mat.emat.cs Nev¸s ehir HacıBekta¸s Veli UniversityNev¸s ehirTurkey Drexel Universit. Department of MathematicsPhiladelphiaPAUSA

t.e Kort.wegde Vries(KdV)equat.on rep.esent. t.e p.op.gat.on of long waves in disp.rsive media,whereas t.e cubic nonlinear Schrödinger(CNLS)equat.on dep.ct. t.e dynamics of narrow-bandwidt. wave p.cket. consist.ng of short.disp.rsive waves.A model t.at.coup.es t.ese t.o equat.ons seems in-t.iguing for simulat.ng t.e int.ract.on of long and short.waves,which is imp.rt.nt.in many domains of ap.lied sciences and engineering,and such a syst.m has been invest.gat.d in recent.*** work uses a modified Sardar sub-equat.on p.ocedure t. secure t.e solit.n-t.p. solut.ons of t.e generalized cubic nonlinear Schrödinger-Kort.weg-de Vries syst.m of *** various select.ons of arbit.ary p.ramet.rs in t.ese solut.ons,t.e dynamic p.op.rt.es of some acquired solut.ons are rep.esent.d grap.-ically and *** p.rt.cular,t.e dynamics of t.e bright.solit.ns,dark solit.ns,mixed bright.dark solit.ns,W-shap.d solit.ns,M-shap.d solit.ns,p.riodic waves,and ot.er solit.n-t.p. *** re-sult. demonst.at.d t.at.t.e p.op.sed t.chnique is highly efficient.and effect.ve for t.e aforement.oned p.oblems,as well as ot.er nonlinear p.oblems t.at.may arise in t.e fields of mat.emat.cal p.ysics and engineering.

关键词： CNLS equat.on Modiﬁed Sardar sub-equat.on met.od KdV equat.on Solit.ns Long and short.waves

Fuzzy Set. Ident.ficat.on of Bone Marrow Cells

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Advances in Manufact.ring 1999年第1期3卷 70-73页

作者： Wang Reikang Nut.all Kern L. Fenn JoAnn p. Wit.wer Carl t. (School of Medicine, Universit. of Ut.h, USA) School of Medicine University of Utah USA

Using rubricyt.s and lymp.ocyt.s as examp.es,t.is p.p.r p.esent. a fuzzy set.t.eory and met.od t. ident.fy human bone marrow hemat.p.iesis syst.m cells (BMCs).On t.e basis of t.e Cauchy’s dist.ibut.on funct.on,t.is p.p.r set. up.a series of membership.funct.on formulae of t.e BMC feat.re fuzzy subset.,general ident.ficat.on formulae of fuzzy set. for t.e BMCs,as well as ident.ficat.on formulae of fuzzy set. for rubricyt.s and *** formulae will assist.wit. t.e quant.t.t.on of unknown cells comp.red t. st.ndard cells.

关键词： cell feat.re cell ident.ficat.on fuzzy set

In-sit. const.uct.on of grass-like hybrid archit.ct.re resp.nsible for ext.aordinary corrosion p.rformance: Exp.riment.l and t.eoret.cal ap.roach

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Nano Mat.rials Science 2024年第1期6卷 44-59页

作者： t.Suhart.no F.Hazmat.lhaq Y.Sheng A.Chaouiki M.p.Kamil Y.G.Ko Mat.rials Elect.ochemist.y Group School of Materials Science and EngineeringYeungnam UniversityGyeongsan38541Republic of Korea Research Cent.r for Advanced Mat.rials National Research and Innovation Agency(BRIN)South TangerangBanten15314Indonesia

Desp.t. t.e engineering p.t.nt.al by t.e co-exist.nce of inorganic and organic subst.nces t. p.ot.ct.vulnerable met.llic mat.rials from corrosive environment.,bot. t.eir int.ract.on and in-sit. format.on mechanism t. induce t.e nat.re-insp.red comp.sit. remained less *** p.esent.work used t.ree dist.nct.ve mercap.obenzazole(MB)comp.unds working as corrosion inhibit.rs,such as 2-mercap.obenzoxazole(MBO),2-mercap.obenzot.iazole(MBt.,and 2-mercap.obenzimidazole(MBI)in a bid t. underst.nd how t.e geomet.ical st.uct.re arising from O,S,and N at.ms affect.d t.e int.ract.on t.ward inorganic *** comp.unds t.at.were used here t. cont.ol t.e corrosion kinet.cs would be int.ract.d readily wit. t.e p.e-exist.ng MgO layer fabricat.d by p.asma *** p.enomenon t.iggered t.e nucleat.on of t.e root.net.ork since MB comp.unds were seen t. be adsorbed act.vely on t.e defect.ve surface t.rough t.e act.ve sit.s in MB ***,t.e molecule wit. t.in donor at.ms adjacent.t. t.e mercap.o-sit.s affect.d t.e facile growt. of t.e grass-like st.uct.res wit.‘uniform’dist.ibut.on via molecular self-assembly,which showed bet.er corrosion p.rformance t.an t.ose wit. having dissimilar donor at.ms wit. t.e inhibit.on efficiency(η)of 97%*** format.on mechanism underlying nucleat.on and growt. behavior of MB molecule was discussed concerning t.e t.eoret.cal calculat.on of densit. funct.onal t.eory.

关键词： Nat.re-insp.red comp.sit. Organic-inorganic int.ract.on Corrosion inhibit.r Densit. funct.onal t.eory Elect.ochemist.y