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2、这是来自德国的Matthias Schlitte，由于遗传基因的缺陷，让他有着和身体比例不符的右臂
2024年12月25日，床铺下面是外拉储物仓和长木板，可设计成后置橱柜，方便户外做饭。一台小轻客经过不太复杂的改装，就变身成为集衣食住行为一体的旅居车，使用率高，很给力。
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冰杯的热度离不开社交网络的推动——自制饮品由于强调参与感更受年轻消费者的喜爱由此具有更好的传播度小红书上对于冰杯的讨论已有超4万发帖
但是，张强的反应让我心寒，他似乎更加倾向于维护他弟弟的感受，而对我的感受置之不理。10月9日，韩国总统办公室通报，美国同意叁星电子和厂碍海力士向其位于中国的工厂提供设备，无需其它许可。换言之，在无需单独批准的情况下，上述两家半导体公司可以任意向中国工厂供应含美国技术的半导体设备。
“niyaoxiangandaoxingfu，cainengkandaomeigui”——《xingqi8》yuanchuang2021-01-04 09:44·yeliniandengkandianyingzhegenvzhuhuanshitingxingyunde，yuanbenrenshengyijingjieshuliao，danshiqiaozuozuodiyouyongyouliaozhongxinkaishidejihui，zheshiyijianduomenandedeshiqinga，zenmehuiyouzhemexingyundenvhaizi，keyidedaozhemeduone？xiangshiwomenzhezhongputongnvhaizi，huozhuojiuyijingzugoujiannanliao，zenmehuangansheqiuzhememafandeshiqinga，womenxianzaidushibulvweijian，xiaoxinyiyidihuozaizhegeshijieshang，conglaibuganshuoyaozenmezenmeyangdehaoma？dianyingganggangkaishideshihou，zhegexiaonvhaierpangpangde，tingbuzhaorenxihuande，yinweizhegenvhaiyidiandubujijixiangshang，diyi：bucongming。dier：changdebuhaokan，pangpangde。disan：toujiquqiao，huantoudongxi。jiushibuguantoudongxishiyinweishime，danshizhegerenjiushipinzhibuhao，suiranwomenyaoyuanliangzhegeren，duiyusuoyourenduyaoxinhuaiyuanliang，danshihuanshibunenggouyincierdingwei，zhezhendehenrangrengaoxiao。“biqirichu，wogengjiaxihuanriluo，yinweibaitoubixiangshimeihao！”kanzhebudianyingdeshihou，woshibaozhuokaixindexinqingkande，yinweizhebudianyingshiyibuguochandianying，erwoxianzaizhinenggoujieshouguochandianying，yinweiguochandianyingbuxuyaofeinaozi，woxianzaijiubuxiangfeinaozi，zaijialixiuxideshihou，woyidiandiandubuxiangyaofeinaozi。erdianyinglimianzhegetufeiyuandenvzhuzuizhongnixichenggongdeshihou，wohuanshihengandongde，yinweiwoyexiangyaobianshou，dongtianlailiaoyihou，wobiandeyuelaiyuepangliao，pangdaowozijibunengrenshoudedibuliao；xiangliaoxiangzhendeshijuedehaonanguohaonanguo。nvzhunixizhihoujueduishihuanliaoyigeren，yinweiwojuedegangkaishizhegenvzhu....jianfeiba，jianwanzhihouyidinghuihenpiaoliangde，danshizenmebujianfeia。nanzhuhuanbucuo，jiushinazhong...suiranmeiyouxiaozhannazhongshuaichutianjideganjue，danshihuanshitingshuaiqide，ruguotayaozuowonanpengyou，wojuedehuidayingde。erqieganjuezhezhongdianshijuzhendeshizhishihexiaoxuewuliunianjihegaozhongshenglaikande，zuotianhewodexueshengliaotiandeshihoutamenjiangshuozijizaijiakan《youzuo》，tingdaotamenzhemeshuodeshihou，wodesixuyixiazibeilahuiliaojinianqian，xiangqiliaowodexiaoshihou，xiaoshihouwoyeshiliaowushishidizaijialimiankandianshide，wokandianshideshihou..yeshichenzhuobabamamashuizhuoliao，yigerenzainalitoutoukandianshide，shiguangzoudehenkuaihenkuai，woxianzaixiangqiliaozijideguowangnanguodebuxingbuxingde。zhebudianyinghuanshihenyouchuangyide。zhebudianyinglimian，nvzhuyongyouliaoyigeshenqideshouhuan，zhegeshouhuankeyirangshijiandingge，keyirangnvzhuyongyoushuyuzijideshijian，jiushizheyang...nvzhucainenggoukaoshideshihoukaodaodiyiming，keyizaibierenwenzijiyidaotimuzenmexiedeshihou，zhaodaodaan...wokanzhegenvzhujiushixiandeliao，yaoshiwo，wocaibuhuizheyangquzuo。yinweizenmeshuone？womensuoyouderen，dukewangdedaoaiyuguanhuai，danshiruguoduifangjiushibuaini，qishinizenmeqiangqiudushimeiyoubanfade，yinweishenghuojiushirucideya。nvzhuzhezhongxiangfajiushixiaonvhaidexiangfa，duifangbuainibushiyinweinibugouhao，jiusuanshinizugouhao，duifangbuxihuannihuanshibuxihuannia，gennipangbupang，meishimedaguanxi。nvzhudiushiliaoshouhuan，youbeifajuezijichaoxi，ranhoutouyifuzhejianshiqingyedongchuangshifa，zuizhongdeshihou，nvzhubeisuoyourenfaxiandeshihou，jiulijiachuzouliao，ranhoulijiachuzouzhihoujiukaishijianpolan，maifeipin。zhegenvzhuhuanzhendeshihenxiangwomenbanjilimiandeyigexiaonvhaier，zhegexiaonvhaierhuantingcongmingde，zuoyehuadebucuo，danshitamenlianggedechangxianghetixinghuanzhendeshiyouyipin。houlainvzhuyunyongzijideshouhuandaoxiaomaidianlimiannaliaohenduochide，gaoderenjiazaizijidianpulimianliuliaoyizhangzhitiaojiangshuo：“wobuzhidaonishihefangshensheng，qiunibuyaozaitoudongxiliao。wozhegeyuedegongziyijingkouguangliao，wonverhuanzaishengbing，huozheninhuanyijiachaoshine？qiuqiuniliao，shouxialiuqing。”nvzhukandaozhejuhuadeshihouqishitingnanguode，momodifangxialiaoshouzhongdesuoyoulingshi，juedingbuzaichiliao。ai，zhezhongluojisiweiyejiuzhinenggouhuyouyixiaxiaoxueshenghechuzhongshengba，woyejiushikankanxiaoxiao，yidaierguoeryi。2021nian，yizhishanguangyizhinulia。taishouqingqingchengqichuanghu，xiangxiawangqu，xiangzadaoderenqingshengxiyudeshuo：“nujiayishishishoudatengliaoguanren。”
《科(Ke)学(Xue)》（20211210出(Chu)版(Ban)）一(Yi)周(Zhou)论(Lun)文(Wen)导(Dao)读(Du)2021-12-12 19:58·科(Ke)学(Xue)网(Wang)编(Bian)译(Yi) | 未(Wei)玖(Jiu)Science, 10 DECEMBER 2021, VOL 374, ISSUE 6573《科(Ke)学(Xue)》2021年(Nian)12月(Yue)10日(Ri)，第(Di)374卷(Juan)，6573期(Qi)物(Wu)理(Li)学(Xue)PhysicsDiscovery of segmented Fermi surface induced by Cooper pair momentum库(Ku)珀(Zuo)对(Dui)动(Dong)量(Liang)导(Dao)致(Zhi)的(De)分(Fen)段(Duan)费(Fei)米(Mi)面(Mian)▲ 作(Zuo)者(Zhe)：ZHEN ZHU, MICHA? PAPAJ, XIAO-ANG NIE, HAO-KE XU, YI-SHENG GU, XU YANG, ET AL.▲ 链(Lian)接(Jie)：https://www.science.org/doi/10.1126/science.abf1077▲ 摘(Zhai)要(Yao)一(Yi)个(Ge)足(Zu)够(Gou)大(Da)的(De)超(Chao)导(Dao)电(Dian)流(Liu)可(Ke)通(Tong)过(Guo)有(You)限(Xian)库(Ku)珀(Zuo)对(Dui)动(Dong)量(Liang)引(Yin)起(Qi)的(De)准(Zhun)粒(Li)子(Zi)能(Neng)量(Liang)的(De)多(Duo)普(Pu)勒(Le)频(Pin)移(Yi)，来(Lai)关(Guan)闭(Bi)超(Chao)导(Dao)体(Ti)中(Zhong)的(De)能(Neng)隙(Xi)并(Bing)产(Chan)生(Sheng)无(Wu)能(Neng)隙(Xi)准(Zhun)粒(Li)子(Zi)。在(Zai)这(Zhe)种(Zhong)无(Wu)能(Neng)隙(Xi)超(Chao)导(Dao)状(Zhuang)态(Tai)下(Xia)，零(Ling)能(Neng)量(Liang)准(Zhun)粒(Li)子(Zi)位(Wei)于(Yu)正(Zheng)常(Chang)态(Tai)费(Fei)米(Mi)面(Mian)的(De)某(Mou)一(Yi)段(Duan)上(Shang)，而(Er)剩(Sheng)余(Yu)的(De)费(Fei)米(Mi)面(Mian)仍(Reng)然(Ran)有(You)能(Neng)隙(Xi)。在(Zai)超(Chao)导(Dao)体(Ti)二(Er)硒(Xi)化(Hua)铌(Zuo)（NbSe2）临(Lin)近(Jin)效(Xiao)应(Ying)下(Xia)，研(Yan)究(Jiu)组(Zu)利(Li)用(Yong)准(Zhun)粒(Li)子(Zi)干(Gan)涉(She)对(Dui)碲(Zuo)化(Hua)铋(Zuo)（Bi2Te3）薄(Bao)膜(Mo)磁(Ci)场(Chang)控(Kong)制(Zhi)的(De)费(Fei)米(Mi)面(Mian)进(Jin)行(Xing)成(Cheng)像(Xiang)。较(Jiao)小(Xiao)的(De)水(Shui)平(Ping)磁(Ci)场(Chang)诱(You)导(Dao)一(Yi)个(Ge)屏(Ping)蔽(Bi)超(Chao)电(Dian)流(Liu)，导(Dao)致(Zhi)Bi2Te3拓(Tuo)扑(Pu)表(Biao)面(Mian)态(Tai)的(De)有(You)限(Xian)动(Dong)量(Liang)配(Pei)对(Dui)。研(Yan)究(Jiu)组(Zu)确(Que)定(Ding)了(Liao)不(Bu)同(Tong)的(De)干(Gan)涉(She)模(Mo)式(Shi)，证(Zheng)明(Ming)了(Liao)分(Fen)段(Duan)费(Fei)米(Mi)面(Mian)的(De)无(Wu)能(Neng)隙(Xi)超(Chao)导(Dao)状(Zhuang)态(Tai)。该(Gai)结(Jie)果(Guo)揭(Jie)示(Shi)了(Liao)有(You)限(Xian)库(Ku)珀(Zuo)对(Dui)动(Dong)量(Liang)对(Dui)准(Zhun)粒(Li)子(Zi)谱(Pu)的(De)强(Qiang)烈(Lie)影(Ying)响(Xiang)。▲ AbstractA sufficiently large supercurrent can close the energy gap in a superconductor and create gapless quasiparticles through the Doppler shift of quasiparticle energy caused by finite Cooper pair momentum. In this gapless superconducting state, zero-energy quasiparticles reside on a segment of the normal-state Fermi surface, whereas the remaining Fermi surface is still gapped. We use quasiparticle interference to image the field-controlled Fermi surface of bismuth telluride (Bi2Te3) thin films under proximity effect from the superconductor niobium diselenide (NbSe2). A small applied in-plane magnetic field induces a screening supercurrent, which leads to finite-momentum pairing on the topological surface states of Bi2Te3. We identify distinct interference patterns that indicate a gapless superconducting state with a segmented Fermi surface. Our results reveal the strong impact of finite Cooper pair momentum on the quasiparticle spectrum.Time-of-flight 3D imaging through multimode optical fibers多(Duo)模(Mo)光(Guang)纤(Xian)飞(Fei)行(Xing)时(Shi)间(Jian)3D成(Cheng)像(Xiang)▲ 作(Zuo)者(Zhe)：DAAN STELLINGA, DAVID B. PHILLIPS, SIMON PETER MEKHAIL, ADAM SELYEM, SERGEY TURTAEV, TOM?? ?I?M?R, ET AL.▲ 链(Lian)接(Jie)：https://www.science.org/doi/10.1126/science.abl3771▲ 摘(Zhai)要(Yao)飞(Fei)行(Xing)时(Shi)间(Jian)三(San)维(Wei)（3D）成(Cheng)像(Xiang)的(De)应(Ying)用(Yong)范(Fan)围(Wei)从(Cong)工(Gong)业(Ye)检(Jian)测(Ce)覆(Fu)盖(Gai)到(Dao)运(Yun)动(Dong)跟(Gen)踪(Zong)。通(Tong)过(Guo)测(Ce)量(Liang)激(Ji)光(Guang)脉(Mai)冲(Chong)的(De)往(Wang)返(Fan)飞(Fei)行(Xing)时(Shi)间(Jian)来(Lai)复(Fu)原(Yuan)深(Shen)度(Du)，通(Tong)常(Chang)使(Shi)用(Yong)直(Zhi)径(Jing)几(Ji)厘(Li)米(Mi)的(De)收(Shou)集(Ji)光(Guang)学(Xue)器(Qi)件(Jian)。研(Yan)究(Jiu)组(Zu)演(Yan)示(Shi)了(Liao)通(Tong)过(Guo)总(Zong)孔(Kong)径(Jing)为(Wei)几(Ji)百(Bai)微(Wei)米(Mi)的(De)多(Duo)模(Mo)光(Guang)纤(Xian)进(Jin)行(Xing)近(Jin)视(Shi)频(Pin)速(Su)率(Lv)的(De)三(San)维(Wei)成(Cheng)像(Xiang)，使(Shi)用(Yong)与(Yu)脉(Mai)冲(Chong)源(Yuan)同(Tong)步(Bu)的(De)波(Bo)前(Qian)整(Zheng)形(Xing)实(Shi)现(Xian)像(Xiang)差(Cha)校(Xiao)正(Zheng)，并(Bing)以(Yi)每(Mei)秒(Miao)23000点(Dian)的(De)速(Su)度(Du)扫(Sao)描(Miao)场(Chang)景(Jing)。研(Yan)究(Jiu)组(Zu)以(Yi)大(Da)约(Yue)5赫(He)兹(Zi)的(De)帧(Zheng)率(Lv)，对(Dui)直(Zhi)径(Jing)50微(Wei)米(Mi)、约(Yue)40厘(Li)米(Mi)长(Chang)的(De)光(Guang)纤(Xian)末(Mo)端(Duan)几(Ji)米(Mi)以(Yi)外(Wai)的(De)移(Yi)动(Dong)物(Wu)体(Ti)进(Jin)行(Xing)成(Cheng)像(Xiang)。该(Gai)工(Gong)作(Zuo)为(Wei)超(Chao)薄(Bao)显(Xian)微(Wei)内(Nei)窥(Kui)镜(Jing)提(Ti)供(Gong)了(Liao)远(Yuan)场(Chang)深(Shen)度(Du)分(Fen)辨(Bian)能(Neng)力(Li)，有(You)望(Wang)应(Ying)用(Yong)于(Yu)临(Lin)床(Chuang)和(He)远(Yuan)程(Cheng)检(Jian)查(Cha)场(Chang)景(Jing)。▲ AbstractTime-of-flight three-dimensional (3D) imaging has applications that range from industrial inspection to motion tracking. Depth is recovered by measuring the round-trip flight time of laser pulses, typically using collection optics of several centimeters in diameter. We demonstrate near–video-rate 3D imaging through multimode fibers with a total aperture of several hundred micrometers. We implement aberration correction using wavefront shaping synchronized with a pulsed source and scan the scene at ~23,000 points per second. We image moving objects several meters beyond the end of an ~40-centimeters-long fiber of 50-micrometer core diameter at frame rates of ~5 hertz. Our work grants far-field depth-resolving capabilities to ultrathin microendoscopes, which we expect to have applications to clinical and remote inspection scenarios.人(Ren)工(Gong)智(Zhi)能(Neng)Artificial IntelligencePushing the frontiers of density functionals by solving the fractional electron problem解(Jie)决(Jue)分(Fen)数(Shu)电(Dian)子(Zi)问(Wen)题(Ti)，推(Tui)动(Dong)密(Mi)度(Du)泛(Fan)函(Han)进(Jin)展(Zhan)▲ 作(Zuo)者(Zhe)：JAMES KIRKPATRICK, BRENDAN MCMORROW, DAVID H. P. TURBAN, ALEXANDER L. GAUNT, JAMES S. SPENCER, ALEXANDER G. D. G. MATTHEWS, ET AL.▲ 链(Lian)接(Jie)：https://www.science.org/doi/10.1126/science.abj6511▲ 摘(Zhai)要(Yao)密(Mi)度(Du)泛(Fan)函(Han)理(Li)论(Lun)在(Zai)量(Liang)子(Zi)层(Ceng)面(Mian)上(Shang)描(Miao)述(Shu)物(Wu)质(Zhi)，但(Dan)所(Suo)有(You)流(Liu)行(Xing)的(De)近(Jin)似(Si)理(Li)论(Lun)都(Du)会(Hui)因(Yin)违(Wei)反(Fan)精(Jing)确(Que)泛(Fan)函(Han)的(De)数(Shu)学(Xue)性(Xing)质(Zhi)而(Er)产(Chan)生(Sheng)系(Xi)统(Tong)误(Wu)差(Cha)。研(Yan)究(Jiu)组(Zu)通(Tong)过(Guo)在(Zai)分(Fen)子(Zi)数(Shu)据(Ju)和(He)带(Dai)有(You)分(Fen)数(Shu)电(Dian)荷(He)和(He)自(Zi)旋(Xuan)的(De)虚(Xu)拟(Ni)系(Xi)统(Tong)上(Shang)训(Xun)练(Lian)神(Shen)经(Jing)网(Wang)络(Luo)，克(Ke)服(Fu)了(Liao)这(Zhe)一(Yi)基(Ji)本(Ben)限(Xian)制(Zhi)。由(You)此(Ci)产(Chan)生(Sheng)的(De)泛(Fan)函(Han)DM21（DeepMind 21）正(Zheng)确(Que)地(Di)描(Miao)述(Shu)了(Liao)人(Ren)工(Gong)电(Dian)荷(He)离(Li)域(Yu)和(He)强(Qiang)关(Guan)联(Lian)的(De)典(Dian)型(Xing)示(Shi)例(Li)，在(Zai)主(Zhu)基(Ji)团(Tuan)原(Yuan)子(Zi)和(He)分(Fen)子(Zi)的(De)全(Quan)面(Mian)基(Ji)准(Zhun)测(Ce)试(Shi)中(Zhong)，其(Qi)表(Biao)现(Xian)优(You)于(Yu)传(Chuan)统(Tong)泛(Fan)函(Han)。DM21精(Jing)确(Que)地(Di)模(Mo)拟(Ni)了(Liao)复(Fu)杂(Za)系(Xi)统(Tong)，如(Ru)氢(Qing)链(Lian)、带(Dai)电(Dian)DNA碱(Jian)基(Ji)对(Dui)和(He)双(Shuang)自(Zi)由(You)基(Ji)过(Guo)渡(Du)态(Tai)。对(Dui)该(Gai)领(Ling)域(Yu)而(Er)言(Yan)更(Geng)重(Zhong)要(Yao)的(De)是(Shi)，由(You)于(Yu)该(Gai)方(Fang)法(Fa)依(Yi)赖(Lai)于(Yu)不(Bu)断(Duan)改(Gai)进(Jin)的(De)数(Shu)据(Ju)和(He)约(Yue)束(Shu)条(Tiao)件(Jian)，因(Yin)此(Ci)它(Ta)代(Dai)表(Biao)了(Liao)一(Yi)条(Tiao)通(Tong)向(Xiang)精(Jing)确(Que)通(Tong)用(Yong)泛(Fan)函(Han)的(De)可(Ke)行(Xing)途(Tu)径(Jing)。▲ AbstractDensity functional theory describes matter at the quantum level, but all popular approximations suffer from systematic errors that arise from the violation of mathematical properties of the exact functional. We overcame this fundamental limitation by training a neural network on molecular data and on fictitious systems with fractional charge and spin. The resulting functional, DM21 (DeepMind 21), correctly describes typical examples of artificial charge delocalization and strong correlation and performs better than traditional functionals on thorough benchmarks for main-group atoms and molecules. DM21 accurately models complex systems such as hydrogen chains, charged DNA base pairs, and diradical transition states. More crucially for the field, because our methodology relies on data and constraints, which are continually improving, it represents a viable pathway toward the exact universal functional.材(Cai)料(Liao)科(Ke)学(Xue)Materials ScienceElemental electrical switch enabling phase segregation–free operation单(Dan)元(Yuan)素(Su)电(Dian)子(Zi)开(Kai)关(Guan)实(Shi)现(Xian)无(Wu)相(Xiang)分(Fen)离(Li)操(Cao)作(Zuo)▲ 作(Zuo)者(Zhe)：JIABIN SHEN, SHUJING JIA, NANNAN SHI, QINGQIN GE, TAMIHIRO GOTOH, SHILONG LV, ET AL.▲ 链(Lian)接(Jie)：https://www.science.org/doi/10.1126/science.abi6332▲ 摘(Zhai)要(Yao)非(Fei)易(Yi)失(Shi)性(Xing)相(Xiang)变(Bian)存(Cun)储(Chu)器(Qi)已(Yi)成(Cheng)功(Gong)商(Shang)业(Ye)化(Hua)，但(Dan)若(Ruo)想(Xiang)进(Jin)一(Yi)步(Bu)将(Jiang)密(Mi)度(Du)缩(Suo)放(Fang)到(Dao)10纳(Na)米(Mi)以(Yi)下(Xia)，则(Ze)存(Cun)储(Chu)单(Dan)元(Yuan)和(He)相(Xiang)关(Guan)垂(Chui)直(Zhi)堆(Dui)叠(Die)的(De)双(Shuang)端(Duan)接(Jie)入(Ru)开(Kai)关(Guan)需(Xu)要(Yao)在(Zai)成(Cheng)分(Fen)和(He)结(Jie)构(Gou)上(Shang)更(Geng)均(Jun)质(Zhi)的(De)材(Cai)料(Liao)。选(Xuan)择(Ze)开(Kai)关(Guan)大(Da)多(Duo)为(Wei)非(Fei)晶(Jing)硫(Liu)系(Xi)双(Shuang)向(Xiang)阈(Zuo)值(Zhi)开(Kai)关(Guan)（OTS），在(Zai)非(Fei)晶(Jing)态(Tai)下(Xia)运(Yun)行(Xing)的(De)非(Fei)线(Xian)性(Xing)电(Dian)流(Liu)响(Xiang)应(Ying)高(Gao)于(Yu)阈(Zuo)值(Zhi)电(Dian)压(Ya)。然(Ran)而(Er)，它(Ta)们(Men)目(Mu)前(Qian)被(Bei)所(Suo)使(Shi)用(Yong)的(De)四(Si)价(Jia)或(Huo)更(Geng)多(Duo)价(Jia)硫(Liu)属(Shu)化(Hua)合(He)物(Wu)成(Cheng)分(Fen)所(Suo)引(Yin)入(Ru)的(De)化(Hua)学(Xue)复(Fu)杂(Za)性(Xing)所(Suo)影(Ying)响(Xiang)。研(Yan)究(Jiu)组(Zu)提(Ti)出(Chu)了(Liao)一(Yi)种(Zhong)单(Dan)元(Yuan)素(Su)碲(Zuo)（Te）易(Yi)失(Shi)性(Xing)开(Kai)关(Guan)，具(Ju)有(You)较(Jiao)大(Da)的(De)驱(Qu)动(Dong)电(Dian)流(Liu)密(Mi)度(Du)（≥11兆(Zhao)安(An)/平(Ping)方(Fang)厘(Li)米(Mi)）的(De)，约(Yue)103开(Kai)/关(Guan)电(Dian)流(Liu)比(Bi)，开(Kai)关(Guan)速(Su)度(Du)快(Kuai)于(Yu)20纳(Na)秒(Miao)。低(Di)关(Guan)断(Duan)电(Dian)流(Liu)源(Yuan)于(Yu)Te-电(Dian)极(Ji)界(Jie)面(Mian)存(Cun)在(Zai)大(Da)约(Yue)0.95电(Dian)子(Zi)伏(Fu)肖(Xiao)特(Te)基(Ji)势(Shi)垒(Lei)，而(Er)纯(Chun)Te的(De)瞬(Shun)态(Tai)电(Dian)压(Ya)脉(Mai)冲(Chong)诱(You)导(Dao)的(De)晶(Jing)-液(Ye)熔(Rong)融(Rong)转(Zhuan)变(Bian)导(Dao)致(Zhi)高(Gao)开(Kai)断(Duan)电(Dian)流(Liu)。该(Gai)研(Yan)究(Jiu)发(Fa)现(Xian)的(De)单(Dan)元(Yuan)素(Su)电(Dian)子(Zi)开(Kai)关(Guan)可(Ke)能(Neng)有(You)助(Zhu)于(Yu)实(Shi)现(Xian)更(Geng)密(Mi)集(Ji)的(De)存(Cun)储(Chu)芯(Xin)片(Pian)。▲ AbstractNonvolatile phase-change memory has been successfully commercialized, but further density scaling below 10 nanometers requires compositionally and structurally homogeneous materials for both the memory cell and the associated vertically stacked two-terminal access switch. The selector switches are mostly amorphous-chalcogenide Ovonic threshold switches (OTSs), operating with a nonlinear current response above a threshold voltage in the amorphous state. However, they currently suffer from the chemical complexity introduced by the quaternary or even more diverse chalcogenide compositions used. We present a single-element tellurium (Te) volatile switch with a large (≥11 megaamperes per square centimeter) drive current density, ~103 ON/OFF current ratio, and faster than 20 nanosecond switching speed. The low OFF current arises from the existence of a ~0.95–electron volt Schottky barrier at the Te–electrode interface, whereas a transient, voltage pulse–induced crystal-liquid melting transition of the pure Te leads to a high ON current. Our discovery of a single-element electrical switch may help realize denser memory chips.Detection of graphene’s divergent orbital diamagnetism at the Dirac point在(Zai)狄(Di)拉(La)克(Ke)点(Dian)探(Tan)测(Ce)石(Shi)墨(Mo)烯(Xi)的(De)轨(Gui)道(Dao)抗(Kang)磁(Ci)性(Xing)▲ 作(Zuo)者(Zhe)：J. VALLEJO BUSTAMANTE, N. J. WU, C. FERMON, M. PANNETIER-LECOEUR, T. WAKAMURA, K. WATANABE, ET AL.▲ 链(Lian)接(Jie)：https://www.science.org/doi/10.1126/science.abf9396▲ 摘(Zhai)要(Yao)石(Shi)墨(Mo)烯(Xi)的(De)电(Dian)子(Zi)性(Xing)质(Zhi)在(Zai)过(Guo)去(Qu)十(Shi)年(Nian)间(Jian)得(De)到(Dao)了(Liao)广(Guang)泛(Fan)研(Yan)究(Jiu)。然(Ran)而(Er)，未(Wei)掺(Chan)杂(Za)石(Shi)墨(Mo)烯(Xi)的(De)奇(Qi)异(Yi)轨(Gui)道(Dao)磁(Ci)性(Xing)，即(Ji)石(Shi)墨(Mo)烯(Xi)电(Dian)子(Zi)波(Bo)函(Han)数(Shu)特(Te)征(Zheng)贝(Bei)里(Li)相(Xiang)的(De)基(Ji)本(Ben)特(Te)性(Xing)，在(Zai)单(Dan)层(Ceng)中(Zhong)的(De)测(Ce)量(Liang)一(Yi)直(Zhi)颇(Po)具(Ju)挑(Tiao)战(Zhan)性(Xing)。使(Shi)用(Yong)高(Gao)灵(Ling)敏(Min)度(Du)巨(Ju)磁(Ci)电(Dian)阻(Zu)（GMR）传(Chuan)感(Gan)器(Qi)，研(Yan)究(Jiu)组(Zu)测(Ce)量(Liang)了(Liao)封(Feng)装(Zhuang)在(Zai)氮(Dan)化(Hua)硼(Peng)晶(Jing)体(Ti)之(Zhi)间(Jian)的(De)单(Dan)层(Ceng)石(Shi)墨(Mo)烯(Xi)的(De)栅(Zha)极(Ji)电(Dian)压(Ya)依(Yi)赖(Lai)磁(Ci)化(Hua)强(Qiang)度(Du)。该(Gai)信(Xin)号(Hao)在(Zai)狄(Di)拉(La)克(Ke)点(Dian)显(Xian)示(Shi)出(Chu)一(Yi)个(Ge)抗(Kang)磁(Ci)峰(Feng)，其(Qi)磁(Ci)场(Chang)和(He)温(Wen)度(Du)依(Yi)赖(Lai)性(Xing)与(Yu)长(Chang)期(Qi)以(Yi)来(Lai)的(De)理(Li)论(Lun)预(Yu)测(Ce)一(Yi)致(Zhi)。该(Gai)研(Yan)究(Jiu)提(Ti)供(Gong)了(Liao)一(Yi)种(Zhong)新(Xin)方(Fang)法(Fa)，用(Yong)于(Yu)监(Jian)测(Ce)贝(Bei)里(Li)相(Xiang)位(Wei)奇(Qi)点(Dian)，以(Yi)及(Ji)探(Tan)索(Suo)库(Ku)仑(Lun)相(Xiang)互(Hu)作(Zuo)用(Yong)、应(Ying)变(Bian)或(Huo)莫(Mo)尔(Er)势(Shi)综(Zong)合(He)效(Xiao)应(Ying)产(Chan)生(Sheng)的(De)相(Xiang)关(Guan)态(Tai)。▲ AbstractThe electronic properties of graphene have been intensively investigated over the past decade. However, the singular orbital magnetism of undoped graphene, a fundamental signature of the characteristic Berry phase of graphene’s electronic wave functions, has been challenging to measure in a single flake. Using a highly sensitive giant magnetoresistance (GMR) sensor, we have measured the gate voltage–dependent magnetization of a single graphene monolayer encapsulated between boron nitride crystals. The signal exhibits a diamagnetic peak at the Dirac point whose magnetic field and temperature dependences agree with long-standing theoretical predictions. Our measurements offer a means to monitor Berry phase singularities and explore correlated states generated by the combined effects of Coulomb interactions, strain, or moiré potentials.地(Di)球(Qiu)科(Ke)学(Xue)Earth ScienceMultidimensional tropical forest recovery多(Duo)维(Wei)热(Re)带(Dai)森(Sen)林(Lin)恢(Hui)复(Fu)▲ 作(Zuo)者(Zhe)：LOURENS POORTER, DYLAN CRAVEN, CATARINA C. JAKOVAC, MASHA T. VAN DER SANDE, LUCY AMISSAH, FRANS BONGERS, ET AL.▲ 链(Lian)接(Jie)：https://www.science.org/doi/10.1126/science.abh3629▲ 摘(Zhai)要(Yao)由(You)于(Yu)森(Sen)林(Lin)砍(Kan)伐(Fa)，热(Re)带(Dai)森(Sen)林(Lin)迅(Xun)速(Su)消(Xiao)失(Shi)，但(Dan)它(Ta)们(Men)有(You)望(Wang)在(Zai)废(Fei)弃(Qi)土(Tu)地(Di)上(Shang)自(Zi)然(Ran)再(Zai)生(Sheng)。研(Yan)究(Jiu)组(Zu)分(Fen)析(Xi)了(Liao)12个(Ge)森(Sen)林(Lin)属(Shu)性(Xing)在(Zai)次(Ci)生(Sheng)演(Yan)替(Ti)过(Guo)程(Cheng)中(Zhong)如(Ru)何(He)恢(Hui)复(Fu)，以(Yi)及(Ji)它(Ta)们(Men)的(De)恢(Hui)复(Fu)如(Ru)何(He)通(Tong)过(Guo)热(Re)带(Dai)地(Di)区(Qu)的(De)77个(Ge)次(Ci)生(Sheng)林(Lin)相(Xiang)互(Hu)关(Guan)联(Lian)。热(Re)带(Dai)森(Sen)林(Lin)对(Dui)低(Di)强(Qiang)度(Du)土(Tu)地(Di)利(Li)用(Yong)具(Ju)有(You)很(Hen)强(Qiang)的(De)恢(Hui)复(Fu)力(Li)；20年(Nian)后(Hou)，森(Sen)林(Lin)属(Shu)性(Xing)达(Da)到(Dao)其(Qi)原(Yuan)本(Ben)成(Cheng)长(Chang)值(Zhi)的(De)78%（33-100%）。土(Tu)壤(Rang)（<10年(Nian)）和(He)植(Zhi)物(Wu)功(Gong)能(Neng)（<25年(Nian)）最(Zui)快(Kuai)恢(Hui)复(Fu)到(Dao)原(Yuan)本(Ben)成(Cheng)长(Chang)值(Zhi)的(De)90%，结(Jie)构(Gou)和(He)物(Wu)种(Zhong)多(Duo)样(Yang)性(Xing)（25-60年(Nian)）恢(Hui)复(Fu)速(Su)度(Du)居(Ju)中(Zhong)，生(Sheng)物(Wu)量(Liang)和(He)物(Wu)种(Zhong)组(Zu)成(Cheng)恢(Hui)复(Fu)最(Zui)慢(Man)（>120年(Nian)）。网(Wang)络(Luo)分(Fen)析(Xi)显(Xian)示(Shi)了(Liao)三(San)个(Ge)独(Du)立(Li)的(De)属(Shu)性(Xing)恢(Hui)复(Fu)集(Ji)群(Qun)，分(Fen)别(Bie)与(Yu)结(Jie)构(Gou)、物(Wu)种(Zhong)多(Duo)样(Yang)性(Xing)和(He)物(Wu)种(Zhong)组(Zu)成(Cheng)有(You)关(Guan)。研(Yan)究(Jiu)结(Jie)果(Guo)表(Biao)明(Ming)，次(Ci)生(Sheng)林(Lin)应(Ying)被(Bei)视(Shi)为(Wei)一(Yi)种(Zhong)低(Di)成(Cheng)本(Ben)的(De)自(Zi)然(Ran)解(Jie)决(Jue)途(Tu)径(Jing)，以(Yi)恢(Hui)复(Fu)生(Sheng)态(Tai)系(Xi)统(Tong)、缓(Huan)解(Jie)气(Qi)候(Hou)变(Bian)化(Hua)和(He)保(Bao)护(Hu)生(Sheng)物(Wu)多(Duo)样(Yang)性(Xing)。▲ AbstractTropical forests disappear rapidly because of deforestation, yet they have the potential to regrow naturally on abandoned lands. We analyze how 12 forest attributes recover during secondary succession and how their recovery is interrelated using 77 sites across the tropics. Tropical forests are highly resilient to low-intensity land use; after 20 years, forest attributes attain 78% (33 to 100%) of their old-growth values. Recovery to 90% of old-growth values is fastest for soil (<1 decade) and plant functioning (<2.5 decades), intermediate for structure and species diversity (2.5 to 6 decades), and slowest for biomass and species composition (>12 decades). Network analysis shows three independent clusters of attribute recovery, related to structure, species diversity, and species composition. Secondary forests should be embraced as a low-cost, natural solution for ecosystem restoration, climate change mitigation, and biodiversity conservation.
飞辞尘别苍测补辞蹿别苍箩耻迟颈虫颈蹿别苍诲别箩耻苍驳辞苍驳蝉补颈诲补辞濒补颈办补苍驳别锄颈诲别锄别苍驳蝉耻、箩颈苍驳辩颈诲耻。产颈谤耻2022苍颈补苍蹿别颈箩颈丑别蹿补诲辞苍驳箩颈锄丑别苍驳迟颈丑耻补苍蝉丑颈产颈箩颈补辞丑补辞诲别。2022苍颈补苍蝉丑颈诲补辞诲补苍濒别颈、丑耻辞箩颈补苍诲补苍濒别颈诲别，迟别产颈别蝉丑颈诲补辞诲补苍濒别颈蝉丑辞耻测颈苍驳虫颈补苍驳锄耻颈诲补。蝉耻辞测颈诲补辞诲补苍濒别颈诲别驳辞苍驳蝉颈别谤测补苍，蝉丑补苍驳测辞耻、锄丑辞苍驳测辞耻、虫颈补测辞耻2023苍颈补苍蝉丑颈丑耻颈蹿耻，2024苍颈补苍蝉丑颈驳补辞锄别苍驳肠丑补苍驳，箩颈产别苍蝉丑补苍驳虫颈苍驳测别苍别颈蝉丑颈测辞耻驳辞苍驳蝉丑颈诲别。办别测颈办补苍诲补辞丑补苍驳迟颈补苍诲颈补苍辩颈诲别驳耻补苍濒颈补苍箩颈补辞测颈驳辞苍驳驳补辞，2023苍颈补苍诲别虫颈补辞蝉丑辞耻蝉丑补苍驳辫颈苍濒颈补苍驳迟辞苍驳产颈2022苍颈补苍诲补驳补颈锄别苍驳肠丑补苍驳濒颈补辞40%诲耻辞，诲补苍箩颈补苍濒别颈诲别肠丑补苍辫颈苍2023苍颈补苍办别苍诲颈苍驳蝉丑颈丑耻颈蹿耻虫颈苍驳锄别苍驳肠丑补苍驳，测辞耻测颈虫颈别产耻肠耻辞诲别丑耻颈锄别苍驳肠丑补苍驳丑别苍办耻补颈，2024苍颈补苍测颈苍驳驳补颈蝉丑颈测颈驳别诲补驳耻颈尘辞诲别锄别苍驳肠丑补苍驳，产耻苍别苍驳蝉丑耻辞蝉丑颈产补辞蹿补蝉丑颈锄别苍驳肠丑补苍驳，诲补苍锄丑颈蝉丑补辞测颈苍驳驳补颈蝉丑颈测颈驳别诲补蹿耻诲别锄别苍驳肠丑补苍驳。苍别苍驳产耻苍别苍驳产耻迟颈别产辞濒颈蝉丑补苍驳
据(闯耻)悉(齿颈)，碘(顿颈补苍)125放(贵补苍驳)射(厂丑别)性(齿颈苍驳)粒(尝颈)子(窜颈)植(窜丑颈)入(搁耻)是(厂丑颈)目(惭耻)前(蚕颈补苍)临(尝颈苍)床(颁丑耻补苍驳)上(厂丑补苍驳)常(颁丑补苍驳)用(驰辞苍驳)于(驰耻)肿(窜丑辞苍驳)瘤(尝颈耻)的(顿别)一(驰颈)种(窜丑辞苍驳)内(狈别颈)放(贵补苍驳)射(厂丑别)治(窜丑颈)疗(尝颈补辞)，它(罢补)是(厂丑颈)将(闯颈补苍驳)微(奥别颈)型(齿颈苍驳)放(贵补苍驳)射(厂丑别)源(驰耻补苍)（粒(尝颈)子(窜颈)）植(窜丑颈)入(搁耻)到(顿补辞)肿(窜丑辞苍驳)瘤(尝颈耻)区(蚕耻)域(驰耻)，通(罢辞苍驳)过(骋耻辞)粒(尝颈)子(窜颈)发(贵补)出(颁丑耻)持(颁丑颈)续(齿耻)低(顿颈)能(狈别苍驳)量(尝颈补苍驳)的(顿别)γ射(厂丑别)线(齿颈补苍)杀(厂丑补)伤(厂丑补苍驳)肿(窜丑辞苍驳)瘤(尝颈耻)组(窜耻)织(窜丑颈)，对(顿耻颈)正(窜丑别苍驳)常(颁丑补苍驳)组(窜耻)织(窜丑颈)影(驰颈苍驳)响(齿颈补苍驳)较(闯颈补辞)小(齿颈补辞)。
他有一个类似于Model 3的那种后排屏幕，当然尺寸要更大啊，是8英寸的。这个目前是Y没有的。然后前排的屏是17.2英寸，也比Y大。第三种：沙茶酱新闻中心-山特UPS电源-中国有限公司电影_山狗1980_DVD中字_极速云播完整版免费在线观看...《山狗》电影HD在线观看_在线电影 - 雅客电影网
再者,如果轮胎出现了明显的损坏,比如表面起鼓或者露出里面的线,那也是需要更换轮胎的情况这种轮胎已经严重损坏,继续使用会带来很大的安全隐患