简介：Owingtotheabsenceofproperanalyticalsolutionofcantileverbeamsforcouplestress/straingradientelas-to-plastictheory,experimentalstudiesofthecantileverbeaminthemicro-scalearenotsuitableforthedeterminationofmateriallength-scale.Basedonthecouplestresselasto-plas-ticity,ananalyticalsolutionofthincantileverbeamsisfirstlypresented,andthesolutioncanberegardedasanextensionoftheelasticandrigid-plasticsolutionsofpurebendingbeam.Acomparisonwithnumericalresultsshowsthatthecurrentanalyticalsolutionisreliableforthecaseofσ0(?)H(?)E,whereσ0istheinitialyieldstrength,HisthehardeningmodulusandEistheelasticmodulus.Fortunately,theabovementionedconditioncanbesatisfiedformanymetalmaterials,andthusthesolutioncanbeusedtodeterminethemateriallength-scaleofmicro-structuresinconjunctionwiththeexperimentofcantileverbeamsinthemicro-scale.

简介：Adailydistributedhydrologicalmodelwasdevelopedusingroutinehydro-meteorologicaldataonthebasisoftherasterDEMandlandcoverdata.ThenthemodelwasusedtomodeldailyrunoffoftheDatongRiverValleylocatedintheuppercatchmentoftheYellowRiverBasin.Therunoffcomprisessurfaceflow,subsurfaceflowandgroundwaterflow.Evapotranspirationcomprisescanopyevaporation,snowsublimationandsoilevapotranspiration.TheinfiltrationtothesoilwasestimatedwithimprovedGreen-Amptmodel,andthepotentialevapotranspirationisestimatedwithMortonCRAEmethod,whichonlyneedstheroutinemeteorologicaldata.Simulationresultsandthecomparisonwithsemi-distributedSLURPhydrologicalmodelshowthatthestructureofthemodelpresentedhereinisreasonable.

简介：Toincreasethecompetitionofthesolarenergycollectionsystem,thesizeofthesolarpanelmoduleduringthemanufacturingprocessisbeingincreasedcontinuously.Asthesizeofthesolarpanelincreases,thesizeoftherobottohandlethepanelincreasedalso.Thechangeinscaleoftherobotinevitablyresultsintheamplificationoftheadverseeffectoftheflexure.Themainsourceoftheflexureinthelargescalesolarcellpanelhandlingsystemisthelongandthinforkfingersofthehandandthesolarcellpanel.Inaddition,thebelt-drivenactuatorsystemusedbymostofthelargescalepanelhandlingrobotisanothersignificantsourceofthevibration.Inthispaper,theflexiblemultibodydynamicmodelofalargescalesolarcellpanelhandlingrobot,whichisbeingdesignedandconstructedwiththehelpofKyungHeeUniversity,isdeveloped.Thebelt-drivensystemintherobotisalsomodeledasflexiblesystemandincludedintherobottorepresenttheactualvibrationcharacteristicsoftheactuatorsystem.

简介：InthispaperwereportasparsetruncatedNewtonalgorithmforhandlinglarge-scalesimpleboundnonlinearconstrainedminimixationproblem.ThetruncatedNewtonmethodisusedtoupdatethevariableswithindicesoutsideoftheactiveset,whiletheprojectedgradientmethodisusedtoupdatetheactivevariables.Ateachiterativelevel,thesearchdirectionconsistsofthreeparts,oneofwhichisasubspacetruncatedNewtondirection,theothertwoaresubspacegradientandmodifiedgradientdirections.ThesubspacetruncatedNewtondirectionisobtainedbysolvingasparsesystemoflinearequations.Theglobalconvergenceandquadraticconvergencerateofthealgorithmareprovedandsomenumericaltestsaregiven.

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简介：TheSouthwestChemicalResearchandDesignInstitute(SCRDI)aftertacklingthekeytechnologyrelatedwiththecatalystformanufactureofDMEthroughgasphasedehy-drationofmethanolhasmadegreatbreakthroughsinlargescalepreparationofcatalystforDMEproduction.

简介：OnOctober8,2018,theHualuHengshengChemicalStockCo.,Ltd.(HHCSC)inShandongmadeanannouncementthatallfacilitiesofits0.5Mt/aethyleneglycolunithadbeenoperatingsmoothlyat70%offullload,whilecrankingoutqualityproduct(withthepremiumqualitycomplianceratereaching100%)tosymbolizethattheunitwasenteringatrialproductionstage.

简介：Anewlocallyadaptiveimagedenoisingmethod,whichexploitstheintrarscaleandinter-scaledependencyinthedual-treecomplexwaveletdomain,ispresented.Firstly,arecentlyemergedbivariateshrinkageruleisextendedtoacomplexcoefficientanditsneighborhood,thecorrespondingnonlinearthresholdfunctionsarederivedfromthemodelsusingBayesianestimationtheory.Secondly,anadaptiveweight,whichisabletocapturetheinter-scaledependencyofthecomplexwaveletcoefficients,iscombinedtotheobtainedbishrinkthreshold.Theexperimentalresultsdemonstrateanimproveddenoisingperformanceoverrelatedearliertechniquesbothinpeaksignal-to-noiseratio(PSNR)andvisualeffect.

简介：Long-lastingexpansionofhazepollutioninChinahasalreadypresentedasternchallengetoregionaljointpreventionandcontrol.Thereisanurgentneedtoenlargeandreconstructthecoverageofjointpreventionandcontrolofairpollutioninkeyarea.Airqualitymodelscanidentifyandquantifytheregionalcontributionofhazepollutionanditskeycomponentswiththehelpofnumericalsimulation,butitisdifficulttobeappliedtolargerspatialscaleduetothecomplexityofmodelparameters.Thetimeseriesanalysiscanrecognizetheexistenceofspatialinteractionofhazepollutionbetweencities,butithasnotyetbeenusedtofurtheridentifythespatialsourcesofhazepollutioninlargescale.Usingeconometricframeworkoftimeseriesanalysis,thispaperdevelopedanewapproachtoperformspatialsourceapportionment.WeappliedthisapproachtocalculatethecontributionfromspatialsourcesofhazepollutioninChina,usingthemonitoringdataofparticulatematter(PM2.5)across161Chinesecities.Thisapproachovercamethelimitationofnumericalsimulationthatthemodelcomplexityincreasesatexcesswiththeexpansionofsamplerange,andcouldeffectivelydealwithseverelarge-scalehazeepisodes.

简介：这研究的PurposeThe目的是测试并且膨胀Marathoners规模(妈妈)模型的动机(主人et?al，1993).MethodsThe妈妈问询表被散布到306个男、女的马拉松跑步者(年龄范围：20-77年)，与在马拉松跑的经验(变化：1-44跑)。确定的因素分析(CFA)表明原来的模型没能适合数据。因此，探索因素分析(EFA)被执行为当前的数据测试最好的因素的解决方案，并且随后的CFA在修订因素的结构上被执行。然后，用最大的可能性的因素抽取方法的一系列EFA是模型数据的performed.ResultsThe最好结构答案合适导致了11个因素：心理copingemotional相关的处理、心理copingeveryday生活管理，生活意思，自尊，识别，联营，重量担心，一般健康orientationreduced疾病流行和长寿，一般健康orientationkeep适合，竞争，并且个人球门achievement.ConclusionThis学习为为身体上要求象马拉松跑，和需要那样的任务同样在研究被使用并且测试incorpora学习动机提供一个声音和稳固的框架

简介：现在的学习的目的是在可得到的观察数据相对当前的一百年的全球温暖趋势识别多十的可变性(MDV)。一百年的全球温暖趋势首先在全球吝啬的表面温度(STgm)被识别数据。MDV基于气候变量的三个集合被识别，包括海表面温度(SST)，到700m的从表面的海洋温度，和NCEP和ERA40分析数据集分别地。所有变量是detrended并且低通行证过滤。通过过滤变量的三独立文件结束分析，所有结果一致地显示出二个主导的模式，与他们类似于和平的十的Oscillation/Inter-decadal和平的摆动(PDO/IPO)和大西洋的各自的时间的可变性多十的摆动(AMO)。象PDO一样摆动的空间结构被象ENSO一样结构和半球的对称的特征描绘。结构在大西洋和和平的盆北方在欧亚大陆和温暖的SST上与异常温暖的空气把半球的不对称的特征与象AMO一样摆动展览联系了108坏，或訌?訌吗？？

简介：Thestudyofhumanmobilitypatternsisofboththeoreticalandpracticalvaluesinmanyaspects.Forlong-distancetravel,afewresearchendeavorshaveshownthatthedisplacementsofhumantravelsfollowapower-lawdistribution.However,controversiesremainregardingtheissueofthescalinglawsofhumanmobilityinintra-urbanareas.Inthiswork,wefocusonthemobilitypatternoftaxipassengersbyexaminingfivedatasetsofthreemetropolitans.Throughstatisticalanalysis,wefindthatthelognormaldistributionwithapower-lawtailcanbestapproximateboththedisplacementandthedurationtimeoftaxitripsinalltheexaminedcities.Theuniversalityofthescalinglawsofhumanmobilityissubsequentlydiscussed,inviewoftheanalysisofthedata.Theconsistencyofthestatisticalpropertiesoftheselecteddatasetsthatcoverdifferentcitiesandstudyperiodssuggeststhat,theidentifiedpatternoftaxi-basedintra-urbantravelsseemstobeubiquitousovercitiesandtimeperiods.

简介：Potassiumdihydrogenphosphate(KDP)singlecrystalsaretheonlynonlinearcrystalscurrentlyusedforelectro-opticswitchesandfrequencyconvertersininertialconfinementfusionresearch,duetotheirlargedimensionandexclusivephysicalproperties.Basedonthetraditionalsolution-growthprocess,largebulkKDPcrystals,usuallywithsizesupto600×600mm2soastomakeafrequencydoublerforthefacilityrequirementloadinghighlyfluxofpowerlaser,canbegrowninstandardHolden-typecrystallizers,withoutspontaneousnucleationandvisibledefects,onetotwoordersofmagnitudefasterthanbyconventionalmethods.PurewaterandKDPrawmaterialwithafewionimpuritiessuchasFe,Cr,andAl(lessthan0.1ppm)wereused.Therapid-growthmethodincludesextremeconditionssuchastemperaturerangefrom60to35℃,overcoolingupto5℃,growthratesexceeding10mm/day,andcrystalsizeupto600mm.TheopticalparametersofKDPcrystalsweredetermined.Theopticalpropertiesofcrystalsdeterminedindicatethattheyareoffavorablequalityforapplicationinthefacility.

简介：当时，在这个工作，我们探讨大规模液体结构相互作用问题的数字答案nonconforming格子或nonconforming有限元素discretizations在分开液体和结构的接口被使用物理领域。为了处理nonconforming液体结构discretizations，我们使用INTERNODES方法(为NOnconforming分解的插值)先前介绍了在里面

简介：AnalysisofArgofloattrajectoriesat1000mandtemperatureat950mintheNorthAtlanticbetweenNovember2003andJanuary2005demonstratestheexistenceoftwodifferentcirculationmodeswithfasttransitionbetweenthem.Eachmodehasapairofcyclonic-anticyclonicgyres.Thedifferenceisthelocationofthecyclonicgyre.Thecyclonicgyrestretchesfromsoutheasttonorthwestinthefirstmodeandfromthesouthwesttothenortheastinthesecondmode.TheobservedmodesstronglyaffecttheheatandsalttransportintheNorthAtlantic.Inparticular,thesecondmodeslowsdownthewestwardtransportofthewarmandsalinewaterfromtheMediterraneanSea.

简介：中国白蜡规模昆虫，Ericeruspela，能在-30°C下面在温度在极其低的温度，和某overwintering个人展览supercooling幸存。调查E的深supercooling能力。pela，transcriptomic和proteomic分析被执行描出为overwintering女性的深supercooling能力负责的主要基因和蛋白质家庭。基因本体论(去)基因在表明小径和小径的激活mitogen的蛋白质kinase，钙，和PI3K-Akt包含了，这与可溶的糖，糖白酒和免费氨基酸的生合成联系的分析显示了的基因和染色体(KEGG)的分类和京都百科全书是主导的。为低温度的应力负责的蛋白质例如冷环境适应蛋白质，甘油生合成相关的酶和热吃惊蛋白质(HSP)被识别。然而，防冻剂蛋白质(法新社)都没通过顺序类似搜索方法被识别。一条随机的森林途径在proteome识别了388个通常认为的法新社。法新社基因ep-afp在Escherichiacoli被表示，并且表示蛋白质展出了0.97°C的一项热磁滞现象活动，建议它处于E的深supercooling能力的潜在的角色。pela。

简介：Background:Withthelossofspeciesworldwideduetoanthropogenicfactors,especiallyinforestedecosystems,ithasbecomemoreurgentthanevertounderstandthebiodiversity-ecosystemfunctioningrelationship(BEFR).BEFRresearchinforestedecosystemsisverylimitedandthusstudiesthatincorporategreatergeographiccoverageandstructuralcomplexityareneeded.Methods:Wecompiledground-measureddatafromapprox.onehalfmilionforestinventorysampleplotsacrossthecontiguousUnitedStates,Alaska,andnortheasternChinatomaptreespeciesrichness,foreststocking,andproductivityatacontinentalscale.Basedonthesedata,weinvestigatedtherelationshipbetweenforestproductivityandtreespeciesdiversity,usingamultipleregressionanalysisandanon-parametricapproachtoaccountforspatialautocorrelation.Results:Ingeneral,forestsintheeasternUnitedStatesconsistedofmoretreespeciesthananyotherregionsinthecountry.ThehighestforeststockingvaluesovertheentirestudyareawereconcentratedinthewesternUnitedStatesandCentralAppalachia.Overall,96.4%ofsampleplots(477,281)showedasignificantpositiveeffectofspeciesrichnessonsiteproductivity,andonly3.6%(17,349)hadaninsignificantornegativeeffect.Conclusions:Thelargenumberofground-measuredplots,aswellasthemagnitudeofgeographicscale,renderedoverwhelmingevidenceinsupportofapositiveBEFR.Thisempiricalevidenceprovidesinsightstoforestmanagementandbiologicalconservationacrossdifferenttypesofforestedecosystems.Foresttimberproductivitymaybeimpairedbythelossofspeciesinforests,andbiologicalconservation,duetoitspotentialbenefitsonmaintainingspeciesrichnessandproductivity,canhaveprofoundimpactsonthefunctioningandservicesofforestedecosystems.

简介：密云水库集水区水源保护林在北京地区饮用水源保护中起着非常重要的作用．本文给出了该区小流域对比实验的初步研究结果，有林小流域和无林小流域对１９９６年７月３０日降雨过程较为一致的径流响应表明，土壤前期含水量对流域产流有较大的影响，在降雨较多土壤含水量较大的情况下该区产流方式可以表现为饱和地表径流．尽管该区以霍顿超渗产流为主，但对于１９９７年７月３１日至８月１日降雨过程，森林流域产流总量为１３９３．８０ｍ３，无林流域为２２０２．４３ｍ３，森林流域减少洪水总量３６．７％，消减洪峰流量达３７３％．然而，１９９７年７月１９日降雨过程森林流域径流洪峰量与洪水泥沙含量均较无林流域高，这表明预处理措施对径流泥沙过程有极为显著的影响

简介：AbstractPurpose:Patients’ gender, which can be one of the most important determinants of traumatic brain injury (TBI) outcomes, is also likely to interact with many other outcome variables of TBI. This multicenter descriptive study investigated gender differences in epidemiological, clinical, treatment, mortality, and variable characteristics in adult TBI patients.Methods:The selection criteria were defined as patients who had been diagnosed with TBI and were admitted to the hospital between January 1, 2016 and December 31, 2018. A total of 4468 adult TBI patients were enrolled at eight University Hospitals. Based on the list of enrolled patients, the medical records of the patients were reviewed and they were registered online at each hospital. The registered patients were classified into three groups according to the Glasgow coma scale (GCS) score: mild (13 -15), moderate (9-12), and severe (3-8), and the differences between men and women in each group were investigated. The risk factors of moderated and severe TBI compared to mild TBI were also investigated.Results:The study included 3075 men and 1393 women and the proportion of total males was 68.8%. Among all the TBI patients, there were significant differences between men and women in age, past history, and GCS score. While the mild and severe TBI groups showed significant differences in age, past history, and clinical symptoms, the moderate TBI group showed significant differences in age, past history, cause of justice, and diagnosis.Conclusion:To the best of our knowledge, this multicenter study is the first to focus on gender differences of adult patients with TBI in Korea. This study shows significant differences between men and women in many aspects of adult TBI. Therefore, gender differences should be strongly considered in TBI studies.

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