学科分类
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10 个结果
  • 简介:<正>XingtangCountyislocatedinthesouthwestofChina’sHebeiProvince,240kilometersfromBeijing.Coveringanareaof1,025squarekilometers,Xingtangisdividedinto4towns,11townshipsand1provincialleveleconomicdevelopmentzone.Therearealtogether330

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  • 简介:"Thepursuitofaclean,beautifulenvironmentisamongthemostbasicofhumanrights,whichdeservesprotection,"saidLuoHaocai,presidentoftheChinaSocietyforHumanRightsStudies.LuomadetheremarksduringtheSixthBeijingForumonHumanRights,whichwasheldbetweenopenedonSeptember12and13,2013.AhealthyenvironmentisespeciallyimportanttotheChinesepeoplewhilethecountryisintheprocessofeconomicdevelopment,hesaid.However,protectingtheenvironmentdoesnotmeanwemustcurbeconomicdevelopment,hesaid.

  • 标签: 人权 环境 论坛 经济发展 中国人 健康
  • 简介:由使用包含基本流动的第二个类型(CISK)模型的线性对称的有条件的不稳定性,我们在台风学习在基本流动和mesoscale骚乱之间的相互作用。结果在台风形成的早阶段显示出那,联合行动垂直在底层和CISK基本流动砍推动骚乱很快成长并且向台风的中心移动。同样,骚乱的发展在台风上影响开发和结构。mesoscale骚乱发展和繁殖的分析显示最大值向一只眼睛的中心,风速度增加,和发行量特征弯屈区域行动出现。同样,当台风腐烂时,低级的垂直的风的增加砍便于mesoscale骚乱的发展。接着,这些mesoscale骚乱将向台风提供精力并且让台风再加强。因此,台风有,这能被说可更新或自我修理功能。

  • 标签: 台风中心 垂直切变 中尺度扰动 切向 维护 开发
  • 简介:文章通过分析VisualBasic程序设计课程的特点及传统教学的现状和问题,融合任务驱动教学法与案例教学法,讨论了如何将其运用于VisualBasic程序设计课程的教学,从而把理论与实践更加有机紧密结合起来,充分激发学生的学习热情,提高学习的主动性和积极性。教学实践表明,该教学模式能取得良好的教学效果。

  • 标签: 任务驱动 VISUAL BASIC程序设计 案例教学法
  • 简介:TheSchmidtmethodisadoptedtoinvestigatethefractureproblemofmultipleparallelsymmetricandpermeablefinitelengthmode-IIIcracksinafunctionallygradedpiezoelectric/piezomagneticmaterialplane.Thisproblemisformulatedintodualintegralequations,inwhichtheunknownvariablesarethedisplacementjumpsacrossthecracksurfaces.Inordertoobtainthedualintegralequations,thedisplacementjumpsacrossthecracksurfacesaredirectlyexpandedasaseriesofJacobipolynomials.Theresultsshowthatthestress,theelectricdisplacement,andthemagneticfluxintensityfactorsofcracksdependonthecracklength,thefunctionallygradedparameter,andthedistanceamongthemultipleparallelcracks.Thecrackshieldingefectisalsoobviouslypresentedinafunctionallygradedpiezoelectric/piezomagneticmaterialplanewithmultipleparallelsymmetricmode-IIIcracks.

  • 标签: 压磁材料 功能梯度 对称模式 III 裂缝 平行
  • 简介:Reporter:TheDecisionoftheThirdPlenarySessionoftheEighteenthCPCCentralCommitteeproposedtostartupapolicythatallowscoupleswithonespousebeinganonly-childtohavetwochildren(hereinafterreferredtoas'thepolicyoftwochildrenforoneonly-childspouse').Thepolicyhasreceivedwideattentionfromthesociety.Whydoesthegovernmentchoosetostartupthepolicyatthisstage?

  • 标签: 独生子女 计划生育 配偶 孩子 副部长 委员会