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  • 简介:这份报纸处理一个模式III界面的裂缝题目到反飞机应力和在里面飞机电场。分析专注于从不一致的ferroelectric-ferroelastic领域由一个电场切换调节破裂坚韧。电的装载改变不对称的切换地区的尺寸。采用重量功能方法,我们获得韧化为的电子上依赖的开关静止并且变得界面的伪静电干扰分别地裂开。多域答案为杆得非、杆得充分的铁电体composites被导出。数字结果在批评应用压力紧张因素调节的电场上被介绍。研究提供方法由改变电场优化铁电体composites的破裂性质。

  • 标签: 界面的快克 调节的电场 领域切换 Ferroelectric-ferroelastic 韧化
  • 简介:Inordertoachieveintegrationofelectrmotionandmanualoperationformanualforklift,thispaperdesignsanimprovedmanualforklift.Weselecttheappropriatemotoraccordingtoparametersoforiginalmanualforklift,whichwasanalyzedbySolidWorks.Wemakethedetaileddesignofthespeedreduceraccordingtotheselectedmotor’sratedspeedandotherparameters,anddesignthereductionspeedratio,reductionspeedform,sizeofgeardrive,meshingparameters,forceanalysisofgearandstrengthcheck.Inthispaper,weelectrifythetraditionalmanualforklifteventually.

  • 标签: 电动叉车 设计 SOLIDWORKS 手动操作 额定转速 传动尺寸
  • 简介:Location:NortheastAfrica.BorderedbytheMediterraneantothenorth.Sudantothesouth.RedSeaandSuezGulftoeast.Palestine&Israeltothenortheast,Libyatowest.Area:1.002Millionkm^2,andinhabitedareaisabout5%.Capital:Cairo.Climate:Hotdryinsummer.Warmrainyinwinter.

  • 标签: 埃及 水力发电 电力供应 能源工业
  • 作者: Liao Yue
  • 学科: 建筑科学 > 建筑技术科学
  • 创建时间:2021-04-08
  • 出处:《科学与技术》 2020年第36期
  • 机构:Abstract:In recent years, the process of Agricultural Mechanization in China has been gradually accelerated. Micro tractor has been favored by more and more users for its convenient and fast performance advantages. With the continuous expansion of micro tractor market share, the traditional performance of the tractor has been more and more unable to keep up with the needs of the majority of farmers, research and development of a simple structure, cost-effective micro electric tractor, to meet the actual needs of small-scale agricultural production such as fields, vegetables and fruit greenhouses will become more and more necessary.
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  • 简介:TheassociationbetweenthelunarphasesandtheatmosphericelectricfieldhasbeeninvestigatedfromthesuperposedepochanalysisofthelongseriesofcontinuousdataoftheverticalelectricfieldforColaba,Bombay(18°53’N,73°48’E11mASL)fortheperiod1947-1966.Alsotheperiodicitiesintheatmosphericelectricfieldhavebeenstudiedfromthespectralanalysisofthedata.Thestudyhasindicatedthatwhenthefullmooniswithin4oftheeclipticplanei.e.,Bf4°,theelectricfieldpeaksonthedayofthefullmoonfollowedbyasteepfallinthefieldvaluesupto4daysfollowingthefullmoondayandthereafteritshowedasteepincrease.Also,theelectricfieldhasexhibited5-9dayperiodicityanditsmultiplesarenearlyalwayspresent.Theperiodicityintheelectricfieldcorrespondswiththeaveragetimeintervalbetweenthesuccessivemagneticsectorboundary(MSB)crossingsi.e.,7days.Onmostoftheoccasions,theMSBcrossingdayisassociatedwithamaximumof

  • 标签: PERIODICITY LUNAR LUNAR EPOCH STEEP sector
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  • 简介:Guangdong,acoastalprovinceinsouthChina,hadverypoorfoundationofindustryinthepast.AftertheestablishmentofPeople’sRepublicofChinain1949,undertheleadershipandunifiedplanningofthecentralgovernment,economyconstructionofbothindustryandagriculturehavebeenboostedandhencetheprovicialelectricpowerindustryhavedevelopedaccord-ingly.Especiallysince1979,theimplementationofreformationand

  • 标签: GUANGDONG ACCORD agriculture UNIFIED REFORMATION OWNED
  • 简介:Thetransitionfromthebiexcitontotheexcitoncanturnoverthedirectionoftheelectricdipoleofapolymericmolecule.Thisturning-overactioncombinedwiththephotoinducedpolarizationreversioncanbeusedasaswitch.Theswitchingspeedisgovernedbytherelaxationtimeoftheturning-overprocess,whichcanbedeterminedbyadynamicalsimulation.

  • 标签: Exciton Biexciton Electric dipole Switch RELAXATION
  • 简介:Onthebasisofthehistoricalstatisticsonpowerconsumption,thispaperanalyzesthepowerconsumptiontrendsinChinabymeansofanalyzingmethodsbasedonconsumptionproportioncurve,fixedbasecurve,month-on-monthincreasecurveandfixedbaseindexcurve.Specialattentionsarepaidtotheconsumptiontrendinthefirsthalfof2010,andpolicystrategiesaresuggestedtargetingtheproblemsreflectedbytheconsumptiontrend.

  • 标签: 统计数据 消费趋势 用电 指数曲线 增长曲线 基础
  • 简介:在关于闪电放电的物理过程和在在中国的最后十年的雷雨的电的结构的研究的进步被考察了。由使用开发theself的闪电与时间的高度和空间分辨率检测并且定位技术,在在中国的一些代表性的区域的闪电放电的特征和参数被获得了。在闪电活动的观察在2002-2005在Qinghai西藏的高原第一次被进行,并且雷雨的特殊特征和在高原的闪电活动被揭示。在可见的光的乐队的闪电系列被记录,并且光谱线与原子结构的现代理论的介绍详细被识别。这些技术在上人工地,高度触发了闪电,在严厉电磁的环境下面的相关大小好发展。ofbi方向性的领导人繁殖在触发的闪电放电期间借助于光学和甚高频放射被观察的证据。一些闪电保护设备用触发技术的人工的闪电被测试了。另外,在闪电活动和天气和气候之间的关联preliminarily被学习。

  • 标签: 闪光 物理过程 雷暴 电气结构