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149 个结果
  • 简介:

  • 标签: ELISA
  • 简介:斯坦福大学卡内基研究所科学家肯·卡尔代拉估算,地球上空急流风的百分之一便可为整个星球供电,但是大部分风能都位于高空。

  • 标签: 斯坦福大学 科学家 研究所 卡内基
  • 简介:Ahighlyselective,openaccess,internationaljournalpublishinginnovativeresearchinallareasofopticsandphotonicsAdvancedPhotocnicsisco-publishedbyChineseLaserPress(CLP)atShanghaiInstituteofOpticsandFineMechanics(SIOM)andSPIE.ThefirstbirmonthlyissuewillbepublishedinJanuary2019.AuthorBenefits:·Rigorousandtimelypeerreviewprocess·Professionalcopyeditingandtypesetting·Waivedopenaccessfeeinthefirstyear.

  • 标签: CLP ADVANCED PHOTONICS
  • 简介:Inrecentyears,despitetheglobaleconomicrecessionandsteeloversupply,thedemandforhighstrengthsteel(HSS)andadvancedhighstrengthsteel(AHSS)sheetshasrobustlyincreased.Tosupplythematerialsneededforautomotivemanufacturing,variousAHSSproductsandapplicationtechnologieshavebeendevelopedbyBaosteel,includingthelst,2nd,and3rdGen.AHSS,whichmakesBaosteeltheworld'sfirststeelmakertocommerciallyprovideallthreegenerationsofAHSS.Recently,thenewGen.(the2ndand3rdGen.combined)AHSSproducts,whichfeatureultra-highstrengthandenhancedductility,havedrawngreatattentionfrombothsteelmakersandtheautomotiveindustryastheseproductscanbeusedtoproduceautopartswithcomplicatedshapesbycoldformingandhavegreatpotentialformanufacturingcarbodiesthatarelighterinweightandhavehighercrashresistance.Inthisarticle,theconcepts,properties,andapplicationsofBaosteel'snewGen.AHSSproducts,includingquenchingandpartitioning(QP)steels,twinning-induced-plasticity(TWIP)steels,andMedium-Mn(Mn-TRIP)steels,aredescribedandreviewed.Moreover,theprogressoftheBaosteellight-weightsteelcarbody(BCB)wasreported.

  • 标签: automotive steels NEW Gen.advanced high strength
  • 简介:摘要LTE-advanced是基于LTE技术开发的4G标准之一。因此,在讨论LTE-advanced技术时,对其原理和应用的阐述也与LTE紧密结合。

  • 标签: LTE LTE-Advanced R10 4G
  • 简介:摘要针对混凝土筒仓结构长期暴露与大气中,结构的温差导致结构破坏,采用板单元温度梯度模型,对温度作用引起的结构内部效应进行有限元分析,得出温差引起的最不利位置,引导筒仓的结构设计。

  • 标签: 温差 温度梯度 板单元 有效应力
  • 简介:摘 要:树形伞状柱为异形结构,其“头重脚轻”的造型导致其屈曲失稳的可能性增大,一旦发生屈曲造成的后果难以预计,因此为了研究在树形伞状柱结构在结构自重以及竖向活荷载作用下的稳定性并得到其临界荷载值,对伞状柱结构进行屈曲数值分析。结果表明:该树形伞状柱结构在承担高负荷条件下的作用力时有很好的表现,同时对其屈曲性能得到了充分的评估,为实际工程应用提供了有价值的参考,以及对相关领域提供的一定的参考资料。

  • 标签: 伞状柱 稳定性 临界荷载 屈曲 数值分析
  • 简介:AbstractInfectious diseases are an increasing threat to global biosafety. Vaccination is the most effective and cost-efficient method for preventing and controlling infectious diseases. The development of new vaccines is inextricably linked to the advancement of materials that serve as essential components of vaccines, such as antigens, adjuvants, and their carriers. The physicochemical and biological properties of vaccines—such as the kinetics of antigen retention and presentation—are determined by the material compositions of vaccines and carriers, affecting the overall efficacy. The sustained release of antigens prolongs their retention time in germinal centers and improves humoral immune responses. Pulsatile release that imitates clinical dosing regimens can improve patient adherence to vaccination, affording increased vaccine coverage. Herein, we review progress of materials innovation on altering vaccine release kinetics, which affects the overall vaccine efficacy, safety, and compliance.

  • 标签: Infectious disease Vaccine Biosafety material Vaccine delivery Release kinetics
  • 简介:数字方法是现在,为失真和剩余的计算的一个有用工具从焊接过程作为结果强调。现代有限元素代码不仅允许变丑和压力的计算由于率的不同加热并且冷却由于焊接处理而且考虑微观结构的变化。作为对纯焊接模拟的扩展,焊接力学的域从焊接进程把力学和材料行为与对焊接部件的服务行为的评价相结合。在纸,焊接力学的地里的试验性、数字的工作的新结果被描述。通过例子从汽车,原子并且管道应用程序一个equilibrated处理和进程,性质和缺点的一个靠近的相互作用是必要的找到对焊接部件的一个先进fitness-forservice评价,这被表明。

  • 标签: 安全性评估 焊接过程 技工 组件 计算结果 数值方法
  • 简介:在我们的电脑生活中,无论是登录系统还是进入邮箱都需要用密码。许多用户正是因为不懂得设置足够“强壮”而又“坚固”的密码,从导致密码轻易被人破解。怎样才能非常方便地设置出一个足够“强壮”而又“坚固”的密码呢?这就需要一款优秀的密码生成管理软件、笔者向大家推荐AdvancedPasswordGenerator。

  • 标签: GENERATOR ADVANCED PASSWORD 密码 登录系统 管理软件
  • 简介:Revealedfrom"2005ChinaAnnualMarketConferenceofAdvancedMaterials",theadvancedmaterialsindustryinChinagrowsrapidly,withmarketscaleRMB¥18.01billion,increasing27.7%overlastyear.Bynow,total79productionbasesofadvancedmaterialshavebeenbuiltinChinaandconstellationeffectofrareearthindustryhasemerged.Beijing,ShenzhenandShanghaihavebeendevelopedinto

  • 标签:
  • 简介:1.IntroductionWritingisaproductiveskillofthelanguage,whichusuallycomesattheendofthefourlanguageskills.Manylearnersfinditdifficultwhentheywriteeitherbecausetheydon’thaveanythingtowriteaboutorbecausetheydon’tknowhowtowrite.Asaresult,theyaredauntedbyanywritingtasks.Teach-ersalsofinditdifficultwhentheyteachthewritingcourseeitherbecausetherearen’tenoughteachingre-sourcestogotoorbecausethesheermarkingofthecompositionposesasamonsterofsomesort.Theseproblemshavehinderedtheeffectiveteachingandlearningofwriting.

  • 标签:
  • 简介:ThecurrentcomputingenvironmentofourComputingCenterinIHEPusesaSAS(serverAttachedStorage)architecture,attachingallthestoragedevicesdirectlytothemachines.Thiskindofstoragestrategycan'tmeettherequirementofourBEPCII/BESⅢprojectproperly.ThuswedesignandimplementaSAN-basedcomputingenvironment,whichconsistsofseveralcomputingfarms,athree-levelstoragepool,asetofstoragemanagementsoftwareandaweb-baseddatamanagementsystem.Thefeatureofourssystemincludescross-platformdatasharing,fastdataaccess,highscalability,convenientstoragemanagementanddatamanagement.

  • 标签: 区域网 数据存储 数据处理系统
  • 简介:摘要:随着通信4G、5G逐步普及,各个运营商天线逐渐增加,对原有角钢塔承载能力影响增大。角钢塔主要承受来自于风荷载产生的水平力,其对风荷载效应的响应随着天线面积的增加而增大。本文利用Midas-Gen有限元软件模拟风荷载对角钢塔的影响,提出有效的改造方案,为通信工程新基建的建设提供一定参考,防止出现通信角钢塔倒塌事件。

  • 标签: 角钢塔 Midas Gen 风荷载
  • 简介:跟随最大的已知的结束--二叠的集体扑灭植物有低差异。在土地上统治的Lycopsids和针叶树。一张新裸子植物Xinjiangoxylon情报。nov。基于收集从的一个木质的茎标本被建议上面二叠(最近,Changhsingian)Taoshuyuan节的上面的Guodikeng形成,Turpan,XinjiangUygur自治区域,西北中国。剥去的茎被复杂木髓,内始式的主要木部和厚第二等的木部柱体描绘。众多的石化的森林在这节在Changhsingian被发现。然而,在有稀罕木头石块早三叠纪。世界范围的石块森林的突然的减少在结束联系到危机二叠。Xinjiangoxylonturpanense情报etsp。nov。出现到代表存在在的一裸子植物最近二叠。

  • 标签: 裸子植物 二叠纪末 中国西北 新疆维吾尔自治区 次生木质部 木化石