简介：石油地球物理学者认识到与油和煤气的水库有关的许多参数用地震属性数据被预言。然而，优化地震属性，预言薄沙岩水库的特性，并且提高水库描述精确性的最好怎么是为地质学家和地球物理学者的一个重要目标。基于主要部件分析的理论，我们在场一个新优化方法，叫的抑制主要部件分析。在一个油矿的当模特儿的估计和真实申请证明它能提高水库预言精确性并且有更好的适用性。

简介：Thisarticlecomprehensivelyanalyzesthestatusofmarketdemand/supplyandimport/exportvolumesofPEintheworldandinChina,andpredictsthefuturedevelopmenttrendsinthefieldsofPEproductionandconsumption.

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简介：Accordingtothecharacteristicofthesensorinertia,thedynamicpredictiontoimprovethesystemdynamicprecisionispresentedinthispaper.Withtherecurrencecalculationoftimeconstantofthesensor,thesystemdynamicprecisionisgreatlyimproved.Theexampleusingthismethodisgiven.

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简介：Inthispaper,thetheoryofQuasi-steadyisappliedtothecalculationsofturbochargersmatchingtothedieselenginesandperformanceprediction.Theengineperformancepredictionprogramswritteninlanguaechavebeenusedforcalculationsofvariousturbochargeddieselengines.Ithasbeenconfirmedbythecomparisonswithexperimentaldatathattheresultsofthecalcuationarereasonable,reliableandsatisfiedfortheengineeringapplications.

简介：Astherearelotsofnon-linearsystemsintherealengineering,itisveryimportanttodomoreresearchesonthemodelingandpredictionofnon-linearsystems.Basedonthemulti-resolutionanalysis(MRA)ofwavelettheory,thispapercombinedthewavelettheorywithneuralnetworkandestablishedaMRAwaveletnetworkwiththescalingfunctionandwaveletfunctionasitsneurons.Fromtheanalysisinthefrequencydomain,theresultsindicatedthatMRAwaveletnetworkwasbetterthanotherwaveletnetworksintheabilityofapproachingtothesignals.AnessentialresearchwascarriedoutonmodelingandpredictionwithMRAwaveletnetworkinthenon-linearsystem.Usingthelengthwiseswaydatareceivedfromtheexperimentofshipmodel,amodelofofflinepredictionwasestablishedandwasappliedtotheshort-timepredictionofshipmotion.Thesimulationresultsindicatedthattheforecastingmodelimprovedthepredictionprecisioneffectively,lengthenedtheforecastingtimeandhadabetterpredictionresultsthanthatofARlinearmodel.TheresearchindicatesthatitisfeasibletousetheMRAwaveletnetworkintheshort-timepredictionofshipmotion.

简介：MM5，它是PSU/NCAR中央放大非静水力学的有限区域的模型，并且它毗连当模特儿的系统在这篇论文被使用。由使用二假数据吸收的台风的一个最佳的起始的条件策划的作者产生的背景回答的拿的T106分析数据，和某数字模仿试验的行为。No.9608typhoon(葛洛丽亚)的结果证明最佳的起始的地有一些戏剧的改进，例如台风中心，更弱的台风发行量和台风的不完全的内部结构的不精密的位置，它被数据的缺乏在海上引起。一些改进在轨道预报被做了。通过几个比较实验，BDAscheme优化的初始化比GFDL计划和它的台风路经预报更好被发现更合理。

简介：ThearticleistoreportsomeresultsofnumericalexperimentsontheerrorgrowthandtheatmosphericpredictabilityExperimentswithtwo-levelglobalbaroclinicprimitiveequationspectralmodelhavemainresultsasfollows.Themagnitudeofinitialerrorsdirectlyaffectstheerrorgrowth,butitsdistributionformhaslittleeffectonthegrowth.Thelossofpredictabilityresultingfromsmall-scaleerrorismuchgreaterthanthatfromlarge-scaleerror.Thesmall-scaleerrorrapidlygrowsandistransferredtothelarge-scaleerrorbyinteractionbetweendifferentscalewaves,whichstimulatesthegrowthoferrorforthewholesystemOrographicforcingrestrainsplanetary-scaleerror(wavenumbers0—3)butenhancesthesmall-scaleerror(wavenumbers8orgreater).Hence,orographiceffectsontheerrorgrowthcloselydependonthecharacteris-ticscaleofinitialerrors,andtheremaybeacriticalwavenumberbetween4and7.Theerrorgrowthisgreat-erinNorthernHemispherethaninSouthernHemisphereifinitialerrorsarethesame.Intheendwegivesomediscussionsaboutmodel,initializationscheme,etc.,toimprovemodelprediction.

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简介：Translationinitiationsites(TISs)areimportantsignalsincDNAsequences.InmanypreviousattemptstopredictTISsincDNAsequences,threemajorfactorsaffectthepredictionperformance:thenatureofthecDNAsequencesets,therelevantfeaturesselected,andtheclassificationmethodsused.Inthispaper,weexaminedifferentapproachestoselectandintegraterelevantfeaturesforTISprediction.Thetopselectedsignificantfeaturesincludethefeaturesfromthepositionweightmatrixandthepropensitymatrix,thenumberofnucleotideCinthesequencedownstreamATG,thenumberofdownstreamstopcodons,thenumberofupstreamATGs,andthenumberofsomeaminoacids,suchasaminoacidsAandD.Withthenumericaldatageneratedfromthesefeatures,differentclassificationmethods,includingdecisiontree,naiveBayes,andsupportvectormachine,wereappliedtothreeindependentsequencesets.Theidentifiedsignificantfeatureswerefoundtobebiologicallymeaningful,whiletheexperimentsshowedpromisingresults.

简介：Afugacitymodelwasdevelopedforpredictionofmixedrefrigerantgashydratesformationconditionsbasedonthemoleculecongregationandsolutiontheories.Inthismodel,gashydrateswereregardedasnon-idealsolidsolutioncomposedofwatergroupsandguestmolecules,andtheexpressionsoffugacityofguestmoleculesinhydratephasewasproposedaccordingly.Ithasbeenshownthatthedevelopedmodelcanindicatesuccessfullytheeffectofguest-guestmoleculeinteraction.Theresultsshowedthatthemodelcandescribebetterthecharacteristicsofphaseequilibriumofmixedrefrigerantgashydratesandpredictionsareingoodagreementwithexperimentaldata.

简介：Withthedevelopmentofgenomesequencingformanyorganisms,moreandmorerawsequencesneedtobeannotated.Genepredictionbycomputationalmethodsforfindingthelocationofproteincodingregionsisoneoftheessentialissuesinbioinformatics.Twoclassesofmethodsaregenerallyadopted:similaritybasedsearchesandabinitioprediction.Here,wereviewthedevelopmentofgenepredictionmethods,summarizethemeasuresforevaluatingpredictorquality,highlightopenproblemsinthisarea,anddiscussfutureresearchdirections.

简介：Inthispaperthemodernelectron-opticalequipmentisusedtotranslatetheclearimageofspeed-movingbubblesinbubblingliquidonasievetrayintothedigitalinformationstoredincomputer,andthecomputeraidedimage-processingtechniqueisutillizedtomeasurethebubblesizedistributionsandinterfacialareasundervariousoperatingcondtions.Andthedynamicbehaviorofbubblesintrubulentliquidisanalyzedtheoretically;themechnaismofbubbledeformationandbreakageisexploredonthebasisofKolmogorff'sisotropicturbulencehypothesis;themathematicalmodelforpredictingthegas-liquidinterfacialareaisproposed,Thecomparisonbetweenthesimulatedresultsandtheexperimentaldatashowthatthemodelishigherinaccuracy,simpleinformandconvenientinuse.

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简介：ThehotloaddeformationtestsoffourkindsofinsulatingfireclaybrickswerecarriedoutusingahightemperaturecreepfurnacefromSinosteelLuoyangInstituteofRefractoriesResearchCo.,Ltd.Thetestingloadwasfixedat0.069MPaandthetotaltestingtimewaswithin6hincludingtheholdingtimeof1.5h.Thehotloaddeformationprocessofinsulatingfireclaybrickscanbedividedintothreesteps:(1)expansionstepfromroomtemperaturetoRULTmax;(2)quickshrinkagestepbetweenRULTmaxandTtest;3)relativelyslowshrinkagestepduringholdingprocess.Thedeformationrateatthebeginningofholdingprocess(D0h)shouldbecontrolledwithin±0.1%.ThehotloaddeformationtestingtemperatureofinsulatingfireclaybrickswasoptimizedasthevalueofRULTmaxplus220℃.

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简介：Regularizationmethodisaneffectivemethodforsolvingill-posedequation.Inthispapertheunbiasedestimationformulaofunitweightstandarddeviationintheregularizationsolutionisderivedandtheformulaisverifiedwithnumericalcaseof1000sampledatabyuseofthetypicalill-posedequation,i.e.theFredholmintegrationequationofthefirstkind.

简介：ToexploretheactionmechanismofmoxibustiononZusanli(ST36)intreatingmalnutrition.MethodsInfantileSDratsweredividedintonormalgroup,modelgroup,comparisongroupandtreatmentgroup.Ganjimodelsofratweremadebyfeedinghighfatandhighcaloriefood.Thentheyweretreatedwithmoxibustionon“Housali”.ResultsAfterthemodelsbeingmade,theappetite,weight,GASandMTLweredecreased.Aftertwoperiodsoftreatment,theywereallincreasedandwerenearlyturnedtobenormallevel.ConclusionMoxibustiononZusanli(ST36)canimprovetheappetite,weight,GASandMTLinGanjimodelsofratandregulatetheirdigestivefunction.

简介：5-10mgL-1的申请流水可溶到沟灌水的离子的polyacrylamide(PAM)实质地在流动进展期间减少沉积损失和增加网络渗入。我们假设了那PAM_s大音阶的第五音vated分子的符合构造影响它的灌溉管理功效。学习被进行在Kimberly，爱达荷，在Portneuf粉砂壤土(Durinodic旱生植物的Haplocalcids)上；在灌溉沟的豆子下面(Phaseolus粗俗)在1.5%斜坡。有对比分子量的Polyacrylamides(一离子：4-7，12-15和14-17MDa，即Mgmol-1)，费用类型(中立，一离子，猫离子)，并且费用密度(8，19，35摩尔%)在二研究被测试。流入率为留下的集合在沟进展，和15Lmin-1期间是23Lmin-1。Anionic和中立PAM象猫一样两次有效为在新沟控制沉积损失的离子的PAM。为全面土壤损失控制的有效性的顺序是：一离子>中立>猫与增加增加的离子的PAM，和功效控告密度或分子量。当PAM处理分子量从17～4MDa被减少时，网沟渗入增加了14～19%。一般趋势建议了离子、中立的PAM生产了的那中等、高的费用密度渗入的最大的增加与控制相比。与未经治疗的沟相比，中立PAM给了最大的季节长的网渗入获得(5%)；当控告时，PAM趋于在新沟上在季节早增加网渗入，但是减少在季节以后的灌溉重复的沟上的渗入。