学科分类
/ 10
181 个结果
  • 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.
  • 简介:

  • 标签:
  • 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
  • 简介:

  • 标签:
  • 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
  • 简介:设计者被要求计划让未来扩大估计格子的未来利用。有效建模和预报技术,它将高效地使用信息在可用数据,可用资料包含了的这个工具,被要求,以便重要数据性质能被提取并且投射进未来。这研究基于划分算法(MMPA)的多模型建议一个适应方法,为短期的电负担用真实数据预报。格子的利用开始用趋于增加的季节的ARIMA被建模(汽车回归的综合移动平均数)模型。建议方法经过数据使用听说并且当模特儿正常周期的行为电的格子。任何一个ARMA(汽车回归的移动平均数)或州空间的模型能被用于当模特儿的负担模式。象可以出现在夏天或意外差错(停电)期间的意外山峰那样的负担异例也被建模。如果负担模式不匹配负担的正常行为,一个异例被检测,而且,当模式匹配异例的一个已知的盒子时,异例的类型被识别。真实数据被使用,真实盒子基于测量被测试大量希腊公共力量合作S.A,雅典,希腊。过滤算法的应用适应多模型成功地识别正常周期的行为和电的格子的任何不平常的活动。建议方法的表演也与由ARIMA模型生产了那相比。

  • 标签: 自适应多模式滤波器 ARIMA 负载预测 KALMAN滤波器
  • 简介:<正>Informationresourcesintegrationforenterprisesatpresentisfairlyhotinthecourseofinformationconstruction,aswellasdifficult.Toachievethisgoal,differentdevelopersadoptdifferenttechnicalmeansandtheirimplementationresultsarealsodiversifiedforvariousreasons.Hereunder,thearticle,takingtheinformationconstructionandresourcesintegrationactivitiesbyElectricPowerofHenan(EPH)asanexample,deploysadeepanalysisanddiscussiononnecessityandessentialfactorsandhowtoensurehigheffectintheprocessofinformationintegration.

  • 标签: ELECTRIC POWER ENTERPRISE RESOURCES INTEGRATION in