简介：在天津从Tanggu区域基于观察数据，一个back-propagationneural网络(BPNN)模型被介绍由于地下水的利用预言可能的陆地沉淀。根据在各种各样的假想抽取情形下面的模型评价，在Tanggu区域的陆地沉淀的模式被学习并且讨论。Tanggu的预言的平均背景陆地沉淀率是9.47mm/a。到陆地沉淀的含水土层的贡献的意义下降单位Ⅳ有序，Ⅲ，Ⅴ，Ⅱ。陆地沉淀趋于随全部的抽取率的增加败坏。

简介：Thedamagesofbuildingstructuressubjectedtomultifariousexplosionscausehugelossesoflivesandproperty.Itisthereasonwhytheblastresistanceandexplosionprotectionofbuildingstructuresbecomeanimportantresearchtopicinthecivilengineeringfieldallovertheworld.ThispaperprovidesanoverviewoftheresearchworkinChinaonblastloadseffectonbuildingstructures.Itincludesmodelingblastshockwavepropagationandtheireffects,thedynamicresponsesofvariousbuildingstructuresunderblastloadsandthemeasurestostrengthenthebuildingstructuresagainstblastloads.Thepaperalsodiscussestheachievementsandfurtherworkthatneedsbedoneforabetterunderstandingoftheblastloads'effectsonbuildingstructures,andforderivingeffectiveandeconomictechniquestodesignnewortostrengthenexistingstructures.

简介：在备课和课堂教学中,经常会发现,把一堂课中的每个教学环节自然、流畅地融合和衔接在一起是一件很困难的事,尤其是想把一节课如同讲故事般行云流水地上完,是煞费脑筋的。笔者的这节课正是基于以上一点,力求做到课堂和线索的完整性。

简介：Comparedwithurbanfloods,dam-breakfloodsareassociatedwithgreateruncertainties,includingvariabledam-breakmodesandhydrologicalcharacteristics,soconventionalfloodestimationmethodscannotbedirectlyappliedintheestimationofdam-breakfloodloss.Inparticular,thereisscantinformationregardingtheconditionsofaffectedareaandhydrologicalcharacteristicsinsouthwestChina.Inthispaper,weintroduceanintegratedmodelforestimatingfloodlossthatisadaptedtothemountainousregionsofsouthwesternChinainlightoftherelativelackofavailableinformation.Thismodelhasthreemajorcomponents:abasicinformationmodel,adam-routedfloodpropagationsimulationmodel,andalossestimationmodel.Weestablishedthebasicinformationmodeldespitetherelativelackofavailableinformationusing3Stechnology[remotesensing(RS);geographicalinformationsystem(GIS);globalpositioningsystem(GPS)],dataminingtechnology,andstatisticalanalysistechniques.Ourdam-routedfloodpropagationsimulationmodelconsistsofmajorhydrologicprocessesandtheirgoverningequationsforflowpropagation,whichwesolveusingfinite-differenceschemes.Inthismodel,thefloodpropagationareaisdividedintogridsandeachgridisdeterminedbythecharacteristicparametersobtainedfromthepropagationsimulation.WepresentacasestudyoftheLianghekouhydropowerstationinSichuanProvince,Chinatoillustratethepracticalapplicationofthisintegratedmodelforlifelossestimation.

简介：民办艺术类高职院校作为我国高等教育多样化发展的必要组成部分之一,在推动文化产业创新发展方面发挥着重要作用。本文对民办艺术类高职院校学生的学习行为进行实证调查,结果发现：学生整体认知能力偏低导致应对学业挑战能力较差;学生自我控制能力较差导致主动投入学习程度不高;专业课程关联程度较大促使合作学习程度整体较高。民办艺术类高职院校应完善课程体系注重培养学生文化素养,激发学习兴趣注重引导学生主动学习,建设生态专业群,注重促进学生合作学习。