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李德毅:将来智能车很重要的功能是向驾驶员学习

2019-07-16 22:38 来源:九江传媒网

  李德毅:将来智能车很重要的功能是向驾驶员学习

  TheSoyuzMS-09spacecra,AlexanderGerstofGermanyandcosmonautSergeyProkopyevofRussiablastsofftotheInternationalSpaceStation(ISS)fromthelaunchpadattheBaikonurCosmodrome,Kazakhstan,June6,2018.(Photo/Agencies)TheSoyuzMS-09spacecra,AlexanderGerstofGermanyandcosmonautSergeyProkopyevofRussiablastsofftotheInternationalSpaceStation(ISS)fromthelaunchpadattheBaikonurCosmodrome,Kazakhstan,June6,2018.(Photo/Agencies)TheSoyuzMS-09spacecra,AlexanderGerstofGermanyandcosmonautSergeyProkopyevofRussiablastsofftotheInternationalSpaceStation(ISS)fromthelaunchpadattheBaikonurCosmodrome,Kazakhstan,June6,2018.(Photo/Agencies)TheSoyuzMS-09spacecra,AlexanderGerstofGermanyandcosmonautSergeyProkopyevofRussiablastsofftotheInternationalSpaceStation(ISS)fromthelaunchpadattheBaikonurCosmodrome,Kazakhstan,June6,2018.(Photo/Agencies)MaritimepersonneluseadronetopatrolontheHongzeLakeinHuaianofeastChinasJiangsuProvince,May15,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/ChenLiang)AnagriculturaldroneworksinthefieldsinBeiguanVillage,LinzhangTownshipofnorthChinasHebeiProvince,April19,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/HuGaolei)AnagriculturaldronespraysintherapeseedfieldsinGulingVillage,JiujiangofeastChinasJiangxiProvince,March21,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/FuJianbin)Adronedeliversvegetablefromamodernagriculturalparktoane-commercewarehouseinWugongCountyofnorthwestChinasShaanxiProvince,April22,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/LiYibo)Arescuedronecapableofbroadcastingandissuingwarnings,patrolsaboveabeachareainSanyaofsouthChinasHainanProvince,May30,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/ShaXiaofeng)Visitorswatchademonstrationofadronetakingpicturesduringthe20thChinaBeijingInternationalHigh-techExpo,inBeijing,capitalofChina,June8,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/JuHuanzong)AfarmeroperatesadroneforfarmworkinthefieldsinZiboofeastChinasShandongProvince,March14,,unmannedaerialvehicles(UAVs),es,includingaerialphotography,cropmonitoring,rescuing,,butalsobroadenstheimaginationofChinesepeopletowardsthecomingfuture.(Xinhua/CuiLilai)

ChildrenplayonasquareinQingdao,eastChinasShandongProvince,June3,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/ZhangCheng)StudentsofamiddleschoolplayfootballinQingdao,eastChinasShandongProvince,June4,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/LiZiheng)AmangoeswindsurferinginQingdao,eastChinasShandongProvince,May4,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/ZhangCheng)CitizensposeforphotoattheOlympicParkinQingdao,eastChinasShandongProvince,June4,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/LiZiheng)ChildrenpracticerollerskatinginQingdao,eastChinasShandongProvince,June4,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/LiZiheng)AmandoesexercisesataparkinQingdao,eastChinasShandongProvince,June3,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/JiangKehong)AsailboatisseeninthewaterinQingdao,eastChinasShandongProvince,June4,(SCO)SummitisscheduledforJune9to10inQingdao.(Xinhua/YinGang)”商洛中学校长周志刚说,以前不少学生下了课就被家长送进各种鱼龙混杂的培训机构中补习,现在学校周边只剩下三四家规模较大且资质齐全的机构了。

  ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)至此,苏A35**1为躲避曝光,使用数字磁铁前后多次将“6、8、9”吸附在“3”上,造成苏A95**1、苏A85**1和苏A65**1三辆车被套牌的事实基本认定。

  同时,当地财政将安排10亿元人民币补贴引进人才、鼓励创新。中央财政要给予地方补助,省级政府仍然要承担扩面征缴、确保基本养老金按时足额发放和弥补养老保险基金缺口的主体责任。

按照十九大精神和社会保险法的要求,先建立基金中央调剂制度来均衡地区间养老保险基金的负担,逐步完善制度,尽快实现养老保险全国统筹。

    像盒马鲜生一样,围绕多样化、个性化的消费需求展开的新零售在中国并不少见。

  VolunteersworkatthepresscenteroftheShanghaiCooperationOrganizationQingdaoSummitinQingdaoCity,EastChina’sShandongProvince,June7,alistsfromhomeandabroadatthepresscenter.(Photo/VCG)VolunteersworkatthepresscenteroftheShanghaiCooperationOrganizationQingdaoSummitinQingdaoCity,EastChina’sShandongProvince,June7,alistsfromhomeandabroadatthepresscenter.(Photo/VCG)VolunteersworkatthepresscenteroftheShanghaiCooperationOrganizationQingdaoSummitinQingdaoCity,EastChina’sShandongProvince,June7,alistsfromhomeandabroadatthepresscenter.(Photo/VCG)VolunteersworkatthepresscenteroftheShanghaiCooperationOrganizationQingdaoSummitinQingdaoCity,EastChina’sShandongProvince,June7,alistsfromhomeandabroadatthepresscenter.(Photo/VCG)VolunteersworkatthepresscenteroftheShanghaiCooperationOrganizationQingdaoSummitinQingdaoCity,EastChina’sShandongProvince,June7,alistsfromhomeandabroadatthepresscenter.(Photo/VCG)ChinesePresidentXiJinping(C)andotherleadersattendingthe18thShanghaiCooperationOrganization(SCO)summitposeforagroupphotoaheadofabanquetinQingdao,eastChinasShandongProvince,June9,2018.(Xinhua/DingLin)ChinesePresidentXiJinpingaddressesabanquetheldforguestsattendingthe18thShanghaiCooperationOrganization(SCO)summitinQingdao,eastChinasShandongProvince,June9,2018.(Xinhua/XieHuanchi)ChinesePresidentXiJinping(C,front)andguestsattendingthe18thShanghaiCooperationOrganization(SCO)summitheadforabanquetinQingdao,eastChinasShandongProvince,June9,2018.(Xinhua/LiXueren)

  AnaerialviewofacolorfulsaltlakeinYuncheng,ShanxiProvince,June6,,thesaltlake,knownasChinas"DeadSea",displaysdifferentcolorsasaresultofmicroorganismsinthewater.(Photo/IC)AnaerialviewofacolorfulsaltlakeinYuncheng,ShanxiProvince,June6,,thesaltlake,knownasChinas"DeadSea",displaysdifferentcolorsasaresultofmicroorganismsinthewater.(Photo/IC)AnaerialviewofacolorfulsaltlakeinYuncheng,ShanxiProvince,June6,,thesaltlake,knownasChinas"DeadSea",displaysdifferentcolorsasaresultofmicroorganismsinthewater.(Photo/IC)

    随着更多城市加入“抢人大战”,太原市人才政策也在近期升级。AcollectionofvintagevehiclesisondisplayattheOldVehiclesCulturalMuseuminTaiyuanCity,ShanxiProvince,June7,,motorcycles,andtractorsfrommorethantencountries,with90percentofthemstillabletostart.(Photo:ChinaNewsService/WuJunjie)AcollectionofvintagevehiclesisondisplayattheOldVehiclesCulturalMuseuminTaiyuanCity,ShanxiProvince,June7,,motorcycles,andtractorsfrommorethantencountries,with90percentofthemstillabletostart.(Photo:ChinaNewsService/WuJunjie)AcollectionofvintagevehiclesisondisplayattheOldVehiclesCulturalMuseuminTaiyuanCity,ShanxiProvince,June7,,motorcycles,andtractorsfrommorethantencountries,with90percentofthemstillabletostart.(Photo:ChinaNewsService/WuJunjie)AcollectionofvintagevehiclesisondisplayattheOldVehiclesCulturalMuseuminTaiyuanCity,ShanxiProvince,June7,,motorcycles,andtractorsfrommorethantencountries,with90percentofthemstillabletostart.(Photo:ChinaNewsService/WuJunjie)AcollectionofvintagevehiclesisondisplayattheOldVehiclesCulturalMuseuminTaiyuanCity,ShanxiProvince,June7,,motorcycles,andtractorsfrommorethantencountries,with90percentofthemstillabletostart.(Photo:ChinaNewsService/WuJunjie)

    像盒马鲜生一样,围绕多样化、个性化的消费需求展开的新零售在中国并不少见。

  ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)ContestantsperformintheChinaBodybuildingChampionshipsinTianjin,June7,,thechampions(Photo:ChinaNewsService/TongYu)

  Special:PresidentXiJinpingsaidonSundaythatbroadconsensushadbeenreachedatthe18thShanghaiCooperationOrganizationSummitasleadersendtyonLong-TermGood-Neighborliness,FriendshipandCooperationoftheSCOMemberStates,acooperationprogramtocombatterrorism,separatismandextremism,ityandenvironmentalprotection,andamemorandoperationinsectorsincludingbusiness,customs,,Xisaidatamediabriefingthatallpartieshadagreedtoincreaseunityandcooperationanddeepenthepartnershipthatadvocatespeaceandreform,equaltreatment,openness,,deputysecretary-generaloftheSCO,saidtheQingdammit,PotapenkosaidtheSCOSecretariathadalsoheededmanygoodproposalsfromtheleadersofmembercountries."Inthenextstep,itisourjobtoseethemthrough,",,comprehensive,nceandjointactions."Withtheglobaleconomyfacedwithdifficultiesandsetbacksinitsrecoveryandwithfrequentfront-burnerissuesregionallyandinternationally,nocountrycancopealoneorstandunscathed,"fWTOrules,consolidatetheopen,inclusive,transparent,nondiscriminatoryandrules-basedmultilateraltradesystem,ntstrategieswillalsobereinforced,andcooperationinsectorsincludingbusiness,investment,finance,connectivityandagriculturewillbeenhancedtopromotetradeandinvestmentfacilitationandinjectnewmomentumintotheworldeconomy,ilateralcooperationinareasincludingculture,education,scienceandtechnology,environmentalprotection,health,tourism,youth,mediaandsphangeandcooperationfortheSCO,andallpartiesarewillingtodeepencooperationwithobserverstateanddialoguepartners,aswellasdialogueandexchangeswithUNandotherinternationalorregionalorganizations.PublichealthworkerssprayinsecticideamidfearsofanewcholeraoutbreakinSanaa,Yemen,June7,’srainyseasonwilllikelytriggeranotherwaveofcholera,puttingmillionsatriskinthewar-torncountry,whichisstillreelingfromoneoftheworld’sworstoutbreaksofthekillerdisease,scientistswarnedinMay.(Photo/Agencies)PublichealthworkerssprayinsecticideamidfearsofanewcholeraoutbreakinSanaa,Yemen,June7,’srainyseasonwilllikelytriggeranotherwaveofcholera,puttingmillionsatriskinthewar-torncountry,whichisstillreelingfromoneoftheworld’sworstoutbreaksofthekillerdisease,scientistswarnedinMay.(Photo/Agencies)PublichealthworkerssprayinsecticideamidfearsofanewcholeraoutbreakinSanaa,Yemen,June7,’srainyseasonwilllikelytriggeranotherwaveofcholera,puttingmillionsatriskinthewar-torncountry,whichisstillreelingfromoneoftheworld’sworstoutbreaksofthekillerdisease,scientistswarnedinMay.(Photo/Agencies)

  

  李德毅:将来智能车很重要的功能是向驾驶员学习

 
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揭秘微观世界“小精灵”:量子为人类打开“新世界”

2019-07-16 16:19 来源: 新华社
AteacherteachesstudentsbasicperformingactionsofChinesedramaataprimaryschoolinNeiqiuCounty,northChinasHebeiProvince,June8,ritingtraditionalChineseculture.(Xinhua/ZhuXudong)AteacherteachesstudentsbasicperformingactionsofChinesedramaataprimaryschoolinNeiqiuCounty,northChinasHebeiProvince,June8,ritingtraditionalChineseculture.(Xinhua/ZhuXudong)StudentspracticebasicperformingactionsofChinesedramaataprimaryschoolinNeiqiuCounty,northChinasHebeiProvince,June8,ritingtraditionalChineseculture.(Xinhua/ZhuXudong)StudentspracticebasicperformingactionsofChinesedramaataprimaryschoolinNeiqiuCounty,northChinasHebeiProvince,June8,ritingtraditionalChineseculture.(Xinhua/ZhuXudong)AteacherteachesstudentsbasicperformingactionsofChinesedramaataprimaryschoolinNeiqiuCounty,northChinasHebeiProvince,June8,ritingtraditionalChineseculture.(Xinhua/ZhuXudong)

新华社上海5月3日电 题:揭秘微观世界“小精灵”:量子为人类打开“新世界”

新华社记者陈芳、徐海涛、周琳

5月3日,中国首台多光子可编程量子计算机在上海亮相,演示了超越早期经典计算机的量子计算能力,并在世界上首次成功实现十个超导量子比特纠缠。

首颗量子科学实验卫星“墨子号”升空,全球首条远程量子通信骨干网“京沪干线”将正式启用。究竟什么是“量子”,它如何改变我们的生活?今天,让我们一起来认识一下这个微观世界里的“小精灵”。

“量子”是什么?量子是最小的、不可再分割的能量单位。这个概念诞生于1900年,物理学家普朗克在德国物理学会上公布了他的成果,成为量子论诞生和新物理学革命宣告开始的伟大时刻。

我们中学物理书上提到的分子、原子、电子,其实都是量子的不同表现形式。也可以说,我们的世界都是由量子组成的。而我们每个人,都是“24K”纯量子产品。

中国科学技术大学教授朱晓波说,在我们生活的宏观世界里,物体的位置、速度等运动规律,都可以通过牛顿力学精确地测算。但在量子微观世界里,有着与宏观世界截然不同的规则。

量子的神秘之处首先体现在它的“状态”。在宏观世界里,任何一个物体在某一时刻有着确定的状态和确定的位置。但在微观世界里,量子却同时处于多种状态和多个位置的“叠加”。

量子力学的开创者之一、奥地利物理学家薛定谔曾用一只猫来比喻量子态叠加:箱子里有一只猫,在宏观世界中它要么是活的,要么是死的。但如果在量子世界中,它同时处于生和死两种状态的叠加。

更为诡异的是,量子的状态还经不起“看”。也就是说,如果你去测量一个量子,那么它就会从多个状态、多个位置,变成一个确定的状态和一个确定的位置了。如果你打开“薛定谔的箱子”,猫的叠加状态就会消失,你会看到一只活猫或一只死猫。

如果说一个量子已经很“奇怪”,那么当两个量子“纠缠”在了一起,那种不确定性连爱因斯坦都受不了了。根据量子力学理论,如果两个量子之间形成了“纠缠态”,那么无论相隔多远,当一个量子的状态发生变化,另一个量子也会超光速“瞬间”发生如同心灵感应的变化。

虽然直至今天,人类仍然还没搞清楚量子为何如此之“神秘”,但国际主流学界已经接受了量子这种特殊性的客观存在。更重要的是,人们可以利用量子的奇异特性开发创新型应用,比如量子通信和量子计算。

例如,量子通信是科学界利用量子特性最早开发的信息应用,它的出现也与时代的需求息息相关。其“不可分割”“测不准”“不可克隆”等特性,使得理论上“绝对安全”的量子通信成为可能。

而基于量子的叠加态与纠缠特性,量子计算机被认为将是最具威力的量子信息应用。此次亮相的多光子可编程量子计算机,就是探索之一。未来,其超级计算能力的实现,将为金融分析、气象预报、药物设计等大规模计算提供全新的方案。量子计算机还可以通过“模拟”,来解决科学研究中的一些未解之谜。

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本作品为“科普中国-科技前沿大师谈”原创,转载时务请注明出处。

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作者: 陈芳、徐海涛、周琳   [责任编辑: 宋金玉]
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