简介：话题建模是一种主流、有效的技术处理文章数据，用在文章分析的宽应用，自然语言，个性化的建议，计算机视觉，等等。在所有已知的话题模型之中，监督了潜伏的Dirichlet分配(sLDA)作为一个流行、竞争的监督话题模型被承认。然而，数据集的规模的渐渐的增加使sLDA越来越低效、费时间，并且在一个很狭窄的范围限制它的应用程序。解决它，平行联机sLDA，命名PO-sLDA(平行、联机的sLDA)，在这研究被建议。它使用使训练过程更快速、有效的学习方法，和并行计算机制经由MapReduce框架实现了的随机的变化推理被建议支持云计算并且大数据处理的能力。PO-sLDA支持的联机训练能力扩展这条途径的申请范围，为有高即时的需求的真实应用使它有帮助。当sLDA和罐头高效地加速训练过程，用有不同尺寸的二数据集的确认证明建议途径有比较精确性。而且，它的好集中和联机训练能力为分析并且处理的大规模文章数据使它赚钱。

简介：Duetotheminiaturizationofmoderndevicesre-quirecomponentswithlightweight,highintegra-tionandtheabilitytostoreenergyinassmallvol-umeaspossible.Asaresult,energystoragedensitybecomesanimportantfigureofmeritforenergystor-agedevices.Inthispaper,firstly,wediscussedtheenergydensityinfine-grainedleadzirconatetita-nateglass-ceramicscompositewiththehelpofthe

简介：分别地，搬运器官的轻射出的设备(OLED)的层(HTL)的洞被真空免职和旋转涂层方法处理在哪儿N，N鈥?biphenyl-N，N鈥?二度(3-methylphenyl)-1,1鈥?biphenyl-4,4鈥?diamine(TPD)并且(vinylcarbazole)(PVK)poly充当了洞运输材料。Tris-(8-hydroxyquinoline)铝(Alq3)作为搬运层的轻射出的层和电子被利用。设备房间的基本结构是：indium-tin-oxide(ITO)/PVK：TPD/Alq3/Mg:Ag。设备的electroluminescent(EL)特征被描绘。结果证明EL系列的山峰在530nm被定位，它遵循了Alq3的描绘的光谱。与使用真空免职方法相比，有直到26135cd/m2的最大的发光性的绿排放能被用纺纱涂层技术选择合适的溶剂在15V的开车电压完成，并且它的最大的发光性效率是在5.5V的开车电压的2.56lm/W。CLC数字TN383+.1这个工程被部水平资助和UESTC的年轻优越工程赞助(资助号码：UESTC-2006206）

简介：作为冷滚动并且退火的联合处理的Thermomechanical在奥氏体的不锈钢上被执行301，304并且304L。二冷滚动步直到75%的减小的每一个与在800点的中间的退火被相结合

简介：全面的抽象A但是称为DPS(数据处理系统)的simple-to-use软件包裹被开发了执行在试验性的设计，统计和数据采矿使用的标准数字分析和操作的一个范围。这个程序在标准Windows计算机上跑。许多函数对特定昆虫学并且另外的生物研究并且没在标准统计软件被发现。这篇论文在昆虫学介绍DPS的应用程序给试验性的设计，统计分析和数据采矿。

简介：Discussionsarecarriedoutontheverticaldiscretizationofcurrentatmosphericmodels.Itispointedoutthatthereexistproblemsintheintegrationofthehydrostaticequationandthecomputationofverticaladvection,verticaldiffusionandsoon.Thensomepossiblewaysforsolvingoralleviatingthemaresuggested.Finally,thechoiceofverticalcoordinateandbasisfunctionsisdiscussed.

简介：Steelproductionremainsanenergy-intensiveindustryinaworldwherethereisanever-increasingemphasisonloweringenergycosts,reducinggreenhousegasemissions,ensuringenvironmentalcompliance,andimprovingproductionrates.Asthegrowthindemandforspecialitysteelscontinuesitssteadyincrease,andnewmarketopportunitiesforeverhighersteelperformanceappear,significantglobalattentionisfocusedonsecondarysteelprocessing,andontheVD,VODandRHprocesses.Onenewtechnologyisabletoaddressalloftheseissuesandconcernstogether-theintegratedladletankvacuumdegassingstationequippedwiththenewmodularmechanicalvacuumpumpingsystems.Thispaperwillexaminetheeconomicandenvironmentalbenefits,operationalcharacteristics,andrecentresultsprovidedbysuchsteeldegassinginstallations.

简介：Inthispaperthepropertiesofspace-timecorrelationfunctionofthenoisefieldofmovingsourceinlayeredstatisticinhomogeneousmediumarestudiedandtheeffectsofrandomfluctuatingboundaryarecon-sideredaswell.Ithasbeenshown,theoreticallyandexperimentally,multi-pathpropergatingeffectscausethedispersionofthecorrelationfunctionandfluctuationsofthemediumrefractionindexandtheboundarycausethefluctuationofit.Theeffectofthemovementofthenoisesourceontheoutputofreal-timecorrelatorisequivalenttoalow-passfilteraddedthedriftofspace-timecorrelationfunction.Thesepropertiesofthecorrelationfunctioncausegravedegradationofthesignalprocessinggainofnoiserangingsonarsystem.Thefluctuatingandthedistortionofconrrelationfunctionmadeitdifficulttorealizethenoiseranging.Sointhispaper,amethodofspacecorrelationrangingbyalineararrayoffourpointswithshortseparationandlongspanandatechnigueofdual-correlationsignalp

简介：Cold-rolledhighstrengthsteelsheetsforautomobilescontainmoreMnandSibasedalloyelements,which,underthereducingatmosphereintheannealingfurnace,willgetenrichedonthestripsurface.Sincethefurnacerollersandthestripscontactfrequently,alloyelementsontherollersurfacewillformhardprotuberance.Wecallthisprotuberance"pick-up".Inaddition,withtheincreaseoftheamountofdustinthefurnaceatmosphere,theoccurrenceoffurnacerollerpick-upwillalsoincrease.Throughchemicalreactionandphysicalaccumulationanalysiscombinedwithpracticalexperience,thecausesofpick-upindifferentfurnacesectionswereanalyzed.Methodsofpreventingfurnacerollerpick-upinthehighstrengthsteelsheetprocessinglinewerediscussedandsolutionstoimprovingthestripsurfacequalityinthecontinousannealingfurnacewereprovided.

简介：thermomechanically影响的地区(TMAZ)的微结构进化特征合金在磨擦期间促使处理(FSP)thixoformed(TF)，AZ91D合金被调查。同时，合成的层增强了由的表面原文如此，粒子(SiCps)被FSP在合金上准备，相应tribological性质被检验。试验性的结果显示那动态再结晶和机械分离(包括切开和主要谷物的骨折)是为TMAZ的谷物精炼的主要机制。一致地分布式的SiCps增强的合成表面在合金上被准备。与没有合成表面，扔合金和TF合金的相应永久模子相比，有合成表面的TF合金有最高穿抵抗和最低磨擦系数。

简介：ThestainlessFe-Mn-Sishapememoryalloy(SMA)coatingwaspreparedonthesurfaceofAISI304stainlesssteel.Theprincipalresidualstressmeasuredbythemechanicalhole-drillingmethodindicatesthattheFe-Mn-SiSMAcladdingspecimenpossessesalowerresidualstresscomparedwiththe304stainlesssteelcladdingspecimen.Themeanstressvaluesoftheformerandthelatteron10-mm-thicksubstrateare4.751MPaand7.399MPa,respectively.What’smore,theirdeformationvalueson2-mm-thicksubstrateareabout0°and15°,respectively.Meanwhile,thevariationtrendandthevalueoftheresidualstresssimulatedbytheANSYSfiniteelementsoftwareconsistwithexperimentalresults.TheX-raydiffraction(XRD)patternshowsε-martensiteexistsinFe-Mn-SiSMAcoating,whichverifiesthemechanismoflowresidualstress.That’stheγ→εmartensitephasetransformation,whichrelaxestheresidualstressofthespecimenandreducesitsdeformationinthelasercladdingprocessing.

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简介：SINOPECResearchInstituteofPetroleumProcessing(RIPP)hasdevelopedthedieselengineoilAPICJ-4,afterhavingpassedthe9enginetestsrequiredbytherelevantAPIspecificationstofillChina’sgapintheindependentdevelopmentofformulationsfordieselengineoilCJ-4,whichisasuccessfulattemptinbreakingtheforeigncompanies’technicalmonopolyonhigh-gradedieselengineoils.

简介：InordertosolvetheproblemofDOA(directionofarrival)estimationofunderwaterremotetargets,anovelsubspace-decompositionmethodbasedonthecrosscovariancematrixofthepressureandtheparticlevelocityofacousticvectorsensorarrays(AVSA)wasproposed.Whereafter,usingspatio-temporalvirtualtapped-delay-line,aneweigenvector-basedcriteriaofdetectionofnumberofsourcesandofsubspacepartitionisalsopresented.ThetheoreticalanalysisshowsthatthenewsourcedetectionanddirectionfindingmethodisdifferentfromexistingAVSAbasedDOAestimationmethodsusingparticlevelocityinformationofacousticvectorsensor(AVS)asanindependentarrayelement.Itisentirelybasedonthecombinedinformationprocessingofpressureandparticlevelocity,hasbetterestimationperformancethanexistingmethodsinisotropicnoisefield.Computersimulationswithdatafromlaketrialsdemonstrate,theproposedmethodiseffectiveandobviouslyoutperformsexistingmethodsinresolutionandaccuracyinthecaseoflowsignal-to-noiseratio(SNR).

简介：AbstractMany factors have been identified as having the ability to affect the sensitivity of rapid antigen detection (RAD) tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This study aimed to identify the impact of sample processing on the sensitivity of the RAD tests. We explored the effect of different inactivation methods, viral transport media (VTM) solutions, and sample preservation on the sensitivity of four RAD kits based on two SARS-CoV-2 strains. Compared with non-inactivation, heat inactivation significantly impacted the sensitivity of most RAD kits; however, β-propiolactone inactivation only had a minor effect. Some of the VTM solutions (VTM2, MANTACC) had a significant influence on the sensitivity of the RAD kits, especially for low viral-loads samples. The detection value of RAD kits was slightly decreased, while most of them were still in the detection range with the extension of preservation time and the increase of freeze-thaw cycles. Our results showed that selecting the appropriate inactivation methods and VTM solutions is necessary during reagent development, performance evaluation, and clinical application.

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