简介：像多项式的反复的方程上的大多数已知的结果被集中到增加答案。没有取向和monotonicity的一致性，它对减少的盒子变得更困难。在这份报纸，我们证明一个一般反复的方程的减少的解决方案的存在，它作为一个开的问题被建议在[J.张，L.杨，W.张，功能的方程上的一些进展，副词。数学。(中国)24(1995)385-405](或[W.张，J·贝克，有可变系数的一个像多项式的反复的方程的连续解决方案，安。Polon。数学。73(2000)29-36])。

简介：TheMinistryofEducationandtheStateCouncilInformationOfficehavenamedRenminUniversityofChinaasoneofthehumanrightsnationaleducationandtrainingbases.Thisshowsthefullaffirmationandtrustintheuniversity’seducation,researchandtrainingworkandalsorepresentsencouragementforitsfuturework.Establishingnationalhumanrightseducationandtrainingbases

简介：作者在更高的尺寸介绍与Montel类型定理有关的一个新想法并且为连续地在pointwise将军位置移动hyperplanes为holomorphicmappings的正常家庭和几个复杂变量的正常holomorphicmappings证明一些Montel类型标准进PN(?)。主要结果为连续地在pointwise将军位置移动hypersurfaces也是真的。例子被给显示出结果的清晰度。关键词Holomorphicmappings-正常家庭-Picard类型定理-价值分发理论2000苏布杰克特先生分类32A19-32H25-32H30工程由国家天赋支持了中国(号码10971156)的科学基础。

简介：Aswitchablemultiwavelengthlaserwithacontinuouslytunablespacingisproposedandillustratedbasedoncascadedinteractionsofthesecondharmonicanddifference-frequencygenerationsinanaperiodicallypoledMgO-dopedlithiumniobate(MgO:APPLN)waveguide.Thewavelengthsandwavelengthspacingsofthefouroutputsarecontinuouslyvariedandcontrolledbychangingthetwoinputpumpwavelengthsandspacingswithina3-nmflattopbandwidthofMgO:APPLN.Inaddition,theswitchablestatesofthefouroutputscanbeselectedbyinputtingproperpowersofthetwopumps.ThenumberofoutputwavelengthscanalsobeincreasedbychoosingtheproperAPPLNstructure,thetotallengthofMgO:APPLN,andhigherpowersofinputpumplights.

简介：AttheinitialoperationstageofthecontinuousbloomcasteratBaosteel,alotofcentralporosityandcracksoccurredinblooms,especiallyinthebloomsofhigh-pressureboilersteel.Inthisstudy,amodelofheattransferandsolidificationwassetuptoanalyzetheprocessofcontinuousbloomcasting.Basedonthemodel,thedistributionsoftemperaturefieldandshellthicknesswereobtained,themushyzonewasdefined,andtherebythetechnologyofsoftreductionforbloomswasdeveloped.Afterseveraltestswereconducted,areasonabletestplanwasdeveloped,whichledtothedeterminationoftheoptimalreductionzoneandgaugereduction.Now,centralporosityandcracksinbloomsarealmostavoidedandtheinnerqualityhasbeenobviouslyimproved.

简介：Anovelatmosphericplasmadevicedevelopedinthispaper,whichismoreeffectiveandconvenienttostudytheplasma-initiatedpolymerization(PIP)thanconventionalsetup.Thestructureandmechanismofthedeviceisintroduced.Someplasma-initiatedpolymerizationexperimentsarecarriedoutonthedevice,andtheconversionofAA(Acrylicacid)andAM(Acrylamide)atmospheric(N2)plasmapolymerizationarerespectively89%and94%after120hpostpolymerization,wherebyIRspectraoftheproduct(AA,AM).OurPIPresultareconfirmed.

简介：Whenthehigh-pressuregasisexhaustedtothevacuumchamberfromthenozzle,theunderexpandedsupersonicjetcontainedwiththeMachdiskisgenerallyformed.Theeventualpurposeofthisstudyistoclarifytheunsteadyphenomenonoftheunderexpandedfreejetwhenthebackpressurecontinuouslychangeswithtime.ThecharacteristicoftheMachdiskhasbeenclarifiedinconsiderationofthediameterandpositionofitbythenumericalanalysisinthispaper.ThesonicjetoftheexitMachnumberMe=1isassumedandtheaxisymmetricconservationalequationissolvedbytheTVDmethodinthenumericalcalculation.ThediameterandpositionoftheMachdiskdifferswiththeresultsofasteadyjetandtheinfluenceonthecontinuouslychangingofthebackpressureisevidencedfromthecomparisonwiththecaseofsteadysupersonicjet.

简介：关于排水量，速度，应力和紧张在的波浪方程机能上地，有连续地并且顺利改变的成分的坡度材料(FGM)被建立。四种波浪线性秒顺序是夸张类型的部分微分方程并且让一样的特征在X的飞机弯，t。一般来说，应力的变化模式在波浪的前面与排水量和速度的不同。但是在密度ρ的产品和材料的有弹性的模量E仍然是的一种特殊情况中未改变，三个波浪方程有类似的表情，他们在前面有一个类似的变化模式飘动。

简介：Acoupleofsimple-structurephasemodulatorswereusedinactivemode-lockedfiberlasertoimplementrepetitionratecontinuoustuning.Thelaserproducespulseasshortas5.7pswhoserepetitionratetuningcancoverthespacingoftheadjoiningordermode-lockingfrequencies.