简介：Fittinglogarithmicbln(clx),a+bln(c+x)orreciprocalb/(c+x),a+b/(c+x)regressionmodelstodatabytheleastsquaresmethodasksforthedeterminationoftheclosureofthesetofeachtypeofthesefunctionsdefinedonafinitedomain.Itfollowsthataminimalsolutionmaynotexist.Butitdoesexistwhentheclosureisconsidered.

简介：在这笔记，泊松方程的整齐？有躺在对数函数空间Lp(LogL)的f的螖u=f一(惟)(1

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简介：Therelationshipbetweengainandcarrierdensityisanalysed.Inthequantumwell(QW)lasers,initially,thegainincreasesrapidlywiththecarrierdensityandthenstartstosaturate.ItcanbeseenthatQWlasershaveahigherdifferentialgainbecauseofthestep-likestatedensity,andthatthegainsaturatesathighercarrierdensitiesbecauseoftheconstantstatedensityofthelowestsubband.Itisshownthatsimpleogarithmicgain-carrierdensityismoreaccuratethanthetraditionallinearizedformforaQWlaser.

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简介：Recently,aclassoflogarithmic-quadraticproximal(LQP)methodswasintro-ducedbyAuslender,TeboulleandBen-Tiba.Theinexactversionsofthesemethodssolvethesub-problemsineachiterationapproximately.Inthispaper,wepresentapracticalinexactnesscriterionfortheinexactversionofthesemethods.

简介：Becauseofitsgoodconditionwithmechanics,logarithmicspiraldoublecurvearchbamhasbeenwidelyusedinthepracticalengineering.Theintroductionofanewmethodinhowtodividetransversejointinarchdamwillbegivenandthefurtherresearchofitscalculationhasbeendone.TheC++isusedinelectronicprocedureandthe3DsimulationhasbeenfinishedwithAutoCAD,whichwillprovidetheobjectmodelforcomputersimulationofthearchdamandthedivisionoffiniteelementmesh.Meanwhile,thismethodindividingthetransversejointinarchdamalsocanbetakenasthecalculatedbasisforthedesignandcalculationofarchdam,constructionloftingandthecalculationoftheworkamount.

简介：The(Nrlund)logarithmicmeansoftheFourierseriesoftheintegrablefunctionfis:1/l_nsumfromk=1ton-1S_k(f)/(n-k),wherel_n:=sumfromk=1ton-11/kInthispaperwediscusssomeconvergenceanddivergencepropertiesofthislogarithmicmeansoftheWalsh-Fourierseriesoffunctionsintheuniform,andintheL~1Lebesguenorm.Amongothers,asanapplicationofourdivergenceresultswegiveanegativeanswertoaquestionofMóriczconcerningtheconvergenceoflogarithmicmeansinnorm.

简介：对数的反应互补金属氧化物半导体(互补金属氧化物半导体)图象传感器提供一个宽动态范围，但是它的缺点是简单固定模式噪音(FPN)的缺乏取消计划。设计与高有活力的范围和高输出秋千是一个新奇对数的活跃象素传感器(APS)。第一，混合模型APS的操作原则被介绍。象素能由选择合适的控制信号在三个操作模式工作。然后，对数的APS的FPN来源被分析，并且双sampled技术被实现减少FPN。根据模拟结果，最后，布局被设计并且过去了设计统治支票(DRC)，电子规则检查(ERC)和布局对图解(LVS)确认，和模拟以后的结果是基本上与模拟结果一致。新对数的APS的动态范围能到达大约140dB；并且产量秋千是大约750mV。结果证明由使用两倍取样的技术，大多数FPN被消除，动态范围被提高。

简介：NinePlatanusacerifolia(Ait),Willd.treesgrowingintheNanjingChildrenTeacher'sSchool,Nanjing,China,wereselectedtodeterminethecontentsof13chemicalelementsbothinthe1994'sgrowthrings,C(Z,t),andinthesoilsneartheroots,C′(Z,t),ofthetrees,Theresultsshowedthattherelationshipbe-tweenC(Z,t)andC′(Z,t)followedthelogarithmiclinercorrelationmoedl.lgC′(Z,t),=a(Z)+b(Z)lgC(Z,t),Basedonthismodelthechrono-sequencesofchemicalelementcontentsinthesoilswerereproducedfromtthoseihthetreerings;i.e.,thedynamicvariationsinthechemicalelementcontentsofthesoilsatthesitesweretrced.Inthisstudythechrono-sequencesofthechemicalelementsincludingCd,Pb,Mn,CoandZninthesoilsneartherootsofaPlatanusacerifoliatreefrom1957to1994wereestablished,andthebackgroundvaluesofCd,Pb,Mn,CoandZninthesoilwerecalcuatedbytakingthelowestvaluesofthechrono-sequencesoftheelementconentsasupperlimitsofthebackgroundvalues.

简介：Inthisarticle,weconsideralifetimedistribution,theWeibull-Logarithmicdistributionintroducedby[6].Weinvestigatesomenewstatisticalcharacterizationsandproperties.WedevelopthemaximumlikelihoodinferenceusingEMalgorithm.AsymptoticpropertiesoftheMLEsareobtainedandextensivesimulationsareconductedtoassesstheperformanceofparameterestimation.Anumericalexampleisusedtoillustratetheapplication.

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