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简介：

简介：摘要:在宠物行业不断发展的背景下，从当今饲养宠物方式以及智能化喂食器的设计理念出发，设计了留家宠物的饮食助手即基于单片机的宠物定时喂食器系统，此款宠物定时喂食系统以STM32单片机为控制核心，实现以下功能：可以通过手机APP设置定时投喂，在喂食的时候可以自主选择投喂量，通过压力检测模块监测余粮数据，并且可以通过红外模块监测宠物是否在进食，也可以监测环境温湿度，在宠物食物余量不足的时候蜂鸣器会报警同时手机APP会弹窗显示余粮不足，同时还具备了WIFI远程操作。

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简介：THEhumblecompassisamongthemostwidelyusedofalltoolstoday.Whetheritbesimplenaviation,GPS,aviation,militarydutiesoraniPhoneapp,thecompassseemstopopupeverywhere.

简介：XunWu,acountyin3iangXiProvince,iswell-knownforitsrareearthre-sourcesandbegantodevelopitsREin-dustryin1976whenonlymixedREwasproduced.However,withtheadoptionofacontinuousextractionseparationtech-niqueandrelevantdesignprovidedbytheBaotouResearchInstituteofRare

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简介：<正>YiWu,locatedincentralZheJiangProvinceonChina’ssoutheastcoast,300kilometersawayfromShanghai,hasatotalareaof1105squarekilometersandapopulationof2.2million.Itisreputedtobeaninternationalcenterforsmallcommoditycirculation,demonstrationand

简介：他对嘻哈文化有信心，他是《中国有嘻哈》节目的明星制作人，他想成为沟通东西方文化的桥梁，他就是——吴亦几。

简介：ProfessorWuYu-mingwasborninDingxiCity,GansuProvinceofNorthwestChina.HeattendedNorth-westNormalUniversityinLanzhou,receivingtheBScingeographyin1993,andalsoaGraduateCertificateinHumanGeographyin1996atNorthwestNormalUniver-sity.HecompletedhiseducationatEastChinaNormal

简介：ＷＵ－ＲＩＴＴ＇ＳＭＥＴＨＯＤＦＯＲＮＯＮＬＩＮＥＡＲＣＯＮＴＲＯＬＳＹＳＴＥＭＳ￥ＬＩＳｈｕｒｏｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃｉｅｎｃｅ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊｉｎｇ１０００８０，Ｃｈｉｎａ）Ａｂｓｔｒａｃｔ：Ｔｈｉ...

简介：吴舟桥迎来了学医的第十一个年头。他曾不止一次地面对这样的调侃——你都学医了你还不后悔？或是这样的疑问——花了这么长的时间值不值？在北医三院外科楼一间休息室里,吴舟桥再次回忆起这些问题。他说,他喜欢学医,这件事毫无疑问。当天,吴舟桥的白大褂里面,是一件黑色衬衫。配上他的棕色尖头皮鞋,蓝色格纹长裤,这一身在欧洲留学期间置办来的打扮,

简介：AtthepressconferencehostedbytheInformationOfficeoftheStateCouncil,WuYi,theministerofForeignTradeandEconomicCooperation,saidthatChina’sforeigntradeandeconomiccooperationsgrewsteadilylastyearonthebasisofrapidexpansionoverpreviousyears.Thehighlightsinvolvedadrasticincreaseofimportswhileexportsincreasedslowly,a

简介：OneofthecentralquestionsinCAGE^[1]isblendingsurfaceswhichprovidesthetheoreticalbasisforthedesigntechnologyofspacesurfaces.Wewilldiscussthegeneraltheoriesandalgorithmsformultivariatehyperfiniteinterpolationandtheirapplicationtotheblendingofimplicitalgebraicsurfaces,andinvestigatetheexistenceconditionsofhyperfiniteinterpolation.BasedonWu'stheoryonblendingimplicitalgebraicsurfaces,theproblemofblendingtwoquadricsurfacesisstudied.TheconditionsforthecoefficientofgiunderwhichthereexiststhecubicblendingsurfaceS(f)(thelowestdegree)areobtainedandtheconcreteexpressionsoffarepresentedistheyexist.TheseresultscanbeapplieddirectlytoCAGD.

简介：1.ContactInformationInstituteofPlantProtection,ChineseAcademyofAgriculturalSciences(CAAS),Beijing,100193,ChinaPhone:+86-10-62815906E-mail:kmwu@ippcaas.cn2.PresentRanksProfessor,InstituteofPlantProtection,CAASPresident,ChinaSocietyofPlantProtection

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简介：China'scapitalmarketisahotissueinthenewyear.ThebeststrategytodeveloptheChinesecapitalmarketinthecoming15to20yearswasdiscussedintheChinaCapitalMarketForum,whichwasheldinChinaatRenminUniversityonJanuary13.Governmentofficials,scholars,andentrepreneurscommentedthatby2020,theChinesecapitalmarketwilldevelopintooneofthebestcapitalmarketsintheworld,notonlyintermsofsize,butalsoassetquality,liquidityanddynamictrade.Isthisarealisticgoal?Whatstepsshouldwetaketopursuethistarget?Withthesequestionsinmind,aftertheforum,China'sForeignTradeinterviewedProf.WuXiaoqiu,VicePresidentofRenminUniversityofChina,andtheDirectoroftheFinance&SecuritiesInstituteofRenminUniversity.Editor

简介：[摘 要]随着通信技术的飞速发展，GPON（Gigabit-Capable PON）网络凭借灵活的接入方式、强大的带宽和多种QOS保障等优势推动着PON传输网络的全面改革。本文从GPON基本原理和FTTP构架入手，整理归纳长庆石油小区基于GPON技术FTTH（Fiber to the Home ）应用中存在的问题，分析日常维护中常见问题的处理方法与方向，提出了流程规范化，以实现故障处理的标准化，缩短维护时间。

简介：1.IntroductionCPECC,theChinaPowerEngineeringConsultingCorpora-tion,alegaleconomicentityandanassociatememberoftheChinaInternationalEngineeringConsultingCorporation(CIECC),hasbeenretainedasaqualifiedinternationalconsultingfirmbytheWorldBanksince1986,andentrustedwiththedecisionphaseofthermalpowerprojectservicessuccessivelyinthefollowingthreecoal-firedpowerstationprojects,allfinancedbytheWorldBank:(1)WujingPowerStationinShanghai,2x300MW,tobeputincommercialoperationin1991and1992successively;

简介：ThefirsttimeIhavelearntthenameWuQingwasinahostshow,"Close-Up"onCCTV-4.SheisaprofessorofBeijingForeignStudiesUniver-sity,andmoreoversheisthedaughterofoneofChineseliterarygiants,Ms.BingXin.Iwasimmediatelyfascinatednot