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51 个结果
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  • 简介:NepalandIndiamayincreasethequantityofpowerexchangedbetweenthetwonationstomeetshortagesinborderingareas.Technicalpanelesfromthetwocountrieshaverecommendedthatthepowerexchangeberaisedfrom50MWto150MW,accordingtoBholanathChalise,chiefofthestate-runNepalElectricityAuthority(NEA).

  • 标签: 尼泊尔 印度 电力供应 国际贸易
  • 简介:磨擦,一枚戒指有弹性地支持了的一个磁盘的阶段特征被调查并且过去常解释僵硬增加现象的机制。只要磨擦被维持,磁盘上的磁盘和旋转的团之间的平均阶段差别毫无疑问是不到蟺/2。当磨擦完成时,阶段差别快速来临到蟺。这行为独立于磨擦系统的物理参数。理论结果是与实验验证的品质上。关键词僵硬增加现象-阶段特征-磨擦转子这个工程被支持由在里面英国的皇家学会和中国(10672006)的国家自然科学基础的来交情。

  • 标签: 摩擦盘 刚度 机制 旋转质量 物理参数 摩擦系统
  • 简介:增加焊接穿入的A-TIG的机制被使用我们为不锈钢开发了的激活的流动学习。流动和焊接水池的温度领域上的流动的效果被PHOENICS软件模仿。它证明没有流动,液体流动将沿着焊接水池然后在下面的表面是外面的,导致flatter焊接水池形状。与流动,氧,从否定价值把表面紧张毕业生的温度依赖改变到积极价值,能在焊接穿入上引起重要变化。液体流动将沿着向中心然后在下面的焊接水池的表面是里面的。这个液体流动模式高效地把热转移到焊接根并且生产相对深、狭窄的焊接。这个变化是穿入增加的主要原因。而且,弧建设能引起焊接宽度变得更狭窄并且变得更深的穿入,但是这不是穿入增加的主要原因。焊接水池表面和弧侧面的液体流动上的流动的效果在焊接的常规TIG并且在由使用高速度的摄像机焊接的A-TIG被观察。液体流动行为被微集中的X光检查传播录像观察系统在实时规模设想。结果显示与更狭窄的宽度和更深的穿入导致焊接祷告的更强壮的里面的液体流动模式能显然在焊接的A-TIG的情况中被识别。流动能在焊接水池改变液体流动的方向。它与模拟结果有一个好协议。

  • 标签: TIG焊 渗透 机制 PHOENICS 流体流动 熔池形状
  • 简介:Whetherthegenerationaffectedbythefamilyplanningwillbenefitdirectlyisthekeytotestwhetherthepolicyimplicationsarethesametocollectiveandindividual.Thereareresearchesonthefamilyplanning'sconsequencesareusuallyinthemacro-level.Inordertodiscoveryhowfamilyplanningdirectlyaffectstheindividual,thispaperusemicrodatafromChinaFamilyPanelStudies(CFPS)2010totesttheimpactoffamilyplanningonchildren'spersonalincome.Theresultsshowsthat'quantity-qualitytradeoff'hypothesisholdsonhumancapitallevelsinChina,andtheimplementationoffamilyplanningpolicyeffectivelyincreaseschildren'seducationlevel,butthesocialcapitaleffectofsiblingsisalsoreducedbythefamilyplanningpolicy.Consideringthetwokindsofeffects,thefamilyplanningpolicyhasnotsignificantlyaffectchildren'spersonalincome.

  • 标签: 计划生育 个人收入 孩子 教育水平 人力资本 社会资本
  • 简介:就台北101摩天大楼是否导致了本地地震活动的增加的争吵而言,我们重新分析在构造到前后的本地地震目录调查与构造有关的报导地震活动增加是否是统计上重要的。统计检验关于明显的地震活动增加获得了一个积极结论。然而,最大的ΔCFS的计算至多显示出那2.2x10~(-4)酒吧库仑失败压力变化被构造生产。因此,台北101的构造是否确实触发了地震活动的增加,仍然是一个待研究的问题:统计上是;身体上--没有。

  • 标签: 统计方法 感应功能 地震活动 高层建筑
  • 简介:OnDecember11,GeneralAdministrationofCustomsofthePeople'sRepublicofChinareleasedtheprofileofChinaforeigntradeimportandexportinNovemberandthefirstelevenmonthsofthisyear.Thestatisticsfromcustomsshowthat,China'sforeignTradeisrecovering.ThetotalimportandexportvalueforNovemberamountedtoUS$208.21billion,9.8%increaseyear-on-

  • 标签: 进出口贸易 海关总署 中国
  • 简介:AccordingtoAlixPartners,aglobalconsultancy,whichpublishedthe2017GlobalAutomotiveOutlookinShanghairecently,theworldwideautomotivesectorisforecasttogrowto114millionvehiclesby2024.Inparticular,BrazilandRussiaareshowingsignsofrecoveryandgrowthhascontinuedinChina,whereastheUSisexpectedtocontinuetodeclineintheshortterm.AlthoughslightlybelowGDPexpectations,thisoverall

  • 标签: 新能源汽车 预计 国内生产总值 咨询机构 咨询公司 汽车业
  • 简介:Inviewofthemajordefectofthetraditionalteachercorrection,thispaperintroducesanewap-proachtoerrorcorrection—grouperrorcorrection,inwhichlearners’roleinlearninglanguageisgreatlyin-creased.Grouperrorcorrectioncanbeusedtocorrecterrorsinstudents’oralwork,groupworkandwrittenwork,bothinclassandafterclass.Halfayear’spracticeofgrouperrorcorrectionshowsthatithelpsincreaselearnerinvolvementintheteachingandlearn-ingprocess,stimulatelearnermotivationinlearningtheforeignlanguage,raisethelearners’awarenessoferrors,facilitatelearners’learningoftheforeignlan-guage,relievetheteacher’sburden,andhelpstheteachermakebetterteachingplans.Errorcorrectionisanenormouslycomplexpro-cess(Ellis,1994,p585).Asforwhichisthemostef-fectivemethodtocorrecterrors,researchershavenotreachedanagreement.Thereforemoreeffortsneedtobemadeinthisfield.

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  • 简介:Currentmedicalstudentsneedanongoingbasisofupdatedskillsandknowledgetobecompatiblewiththedevelopmentofhealthcaresystemsinthehospitals.Thestudentengagementinthinkingaboutthebetterwayforlearninganewinformationandskillswillcreatesafeandcomfortablelearningenvironment,whichactasagoldenkeytostartingpoint,leadingtohighestqualitylearningoutcomes.Themedicaleducationinstructorshouldrecognizethee-learningtechnologygadgetsuitedtherequiredlearningenvironmentandcompatiblewithintendedlearningobjectivesforeachlecture.Nodoubtthattheinstructorplaysavitalroleinthestudentsupport,whichneedsanintellectualeffortstoprovidethemwithappropriateneedsandguidestudentstobecomeactiveandcreativemembersintheuniversity,theirprofession,andcommunity.Thisresearchaimstofindoutwhatistheimpactofelectroniccourses(e-courses)ininstructionalsupport,toincreasemedicalstudents’enthusiasm.AcrosssectionaldescriptiveanalyticalstudyconductedinKingSaudUniversity,Riyadh,KingdomofSaudiArabia(KSA),thestudypopulationwasundergraduateradiologicalsciencesstudents.Awell-designedquestionnairewasdistributedtostudentsandthenreceivedtheirfeedback.Inthefirstpartofthecourse,theyexposedtotraditionalmethods,whileintheremainingpart,thee-learningandinteractivelectureswereintroduced.StatisticalanalyseswereperformedwithStatisticPackageforSocialScience(SPSSsoftwareversion20).Outof50students,31(62.0%)preferredtheinteractivepowerpointsfiles,33(66.0%)moreenthusiastictouselearningmanagementsystem(LMS)tofindouttheircoursecontents.Regardingthelevelofstudentssatisfactionindifferenttypesofpre-test,30(60.0%)studentswereunsatisfiedwhenusingpaperandpenstyle,while38(76.0%)weresatisfiedwhenperforminganelectronictests.Twenty-nine(58.50%)favouredaninteractivemindmapforeachlecturecontents.Majorityofstudentsdecidedthatbothclassicalandelectronicinst

  • 标签: component e-courses instructional SUPPORT RADIOLOGICAL SCIENCES
  • 简介:ItiswellknownthatthealgebraicexpressionofASSS-boxisverysimpleandonly9termsareinvolved.Hence,AESsecurityissuspectedalthoughthereisnovulnerabilityonitsofar.ToeliminatetheweaknessofextremelysmalltermsinthealgebraicexpressionofAESS-box,oneimprovedAESS-boxisproposed,whichpreservesthealgebraicdegreeinvariablebutsignificantlyincreasesthenumberofitsalgebraicexpressiontermsfrom9to255.Atthesametime,Booleanfunctionhasgoodcharactersinbalanceandstrictavalanchecriterion(SAC),etc.Finally,itisprovedthattheimprovedAESS-boxschemeissecuregainstthepowerfulknowndifferentialandlinearcryptanalysis.

  • 标签: 线性密码分析 复杂性 AES 高级保密标准 美国国家标准所 S-BOX