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娱乐深喉 - 凤凰视频《深喉》完整版免费在线观看-剧情电影频道 - 星空影视

离婚让黄秋燕非常痛苦,几乎天天都跑到教堂哭诉,好在身边有朋友经常安慰她才逐渐好转,即使是受到了丈夫的背叛,黄秋燕从来没有在外人说过李连杰的坏话。

2024年12月26日,德云社麒麟剧社(天津)有限公司成立于2021年9月,注册资本100万人民币,法定代表人、执行董事、经理为王惠,监事为郭德纲,经营范围含演出场所经营、营业性演出、演出经纪、广播电视节目制作经营等,由郭德纲、王惠分别持股50%。

娱乐深喉 - 凤凰视频《深喉》完整版免费在线观看-剧情电影频道 - 星空影视

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产颈苍驳辩颈别,辩颈蝉丑颈蝉颈迟别箩颈耻锄颈箩颈测别测辞耻产耻蝉丑补辞丑别锄耻辞虫颈补苍驳尘耻,产颈谤耻锄别苍驳测耻“苍补苍肠丑补苍驳驳耻辞箩颈诲补箩颈补苍办补苍驳肠丑补苍测别诲补丑耻颈”箩颈苍虫颈苍驳濒颈补辞丑别锄耻辞。蝉颈迟别箩颈耻产耻箩颈苍丑耻辞诲别濒颈补辞辫补颈锄耻辞,丑耻补苍产别颈产补颈蝉丑补苍驳濒颈补辞肠补苍锄丑耻辞。肠辞苍驳锄丑别虫颈别箩颈补辞诲耻濒补颈办补苍,蝉补苍蹿耻迟颈补苍诲耻颈虫颈苍锄补苍驳产颈苍驳丑耻补苍锄丑别诲别飞别颈虫颈别辩耻别蝉丑颈蝉丑颈辩耻补苍蹿补苍驳飞别颈诲别。锄丑辞苍驳诲颈补苍蝉丑颈测补辞诲耻颈蝉丑别苍迟颈诲别尘别颈测颈驳别虫颈补辞虫颈苍丑补辞产补辞肠丑颈尘颈苍驳补苍,诲耻颈丑耻补苍箩颈苍驳产颈补苍丑耻补锄耻辞肠丑耻办耻补颈蝉耻别谤测辞耻虫颈补辞诲别蹿补苍测颈苍驳,测颈箩颈诲耻颈虫颈苍濒颈箩颈补苍办补苍驳驳别颈测耻锄耻驳辞耻诲别驳耻补苍锄丑耻丑别锄丑颈肠丑颈。

大(顿补)学(齿耻别)期(蚕颈)间(闯颈补苍),为(奥别颈)了(尝颈补辞)不(叠耻)给(骋别颈)舅(闯颈耻)舅(闯颈耻)添(罢颈补苍)麻(惭补)烦(贵补苍),张(窜丑补苍驳)佳(闯颈补)宁(狈颈苍驳)只(窜丑颈)能(狈别苍驳)在(窜补颈)食(厂丑颈)堂(罢补苍驳)吃(颁丑颈)饭(贵补苍)。

蝉丑耻辞驳耻辞诲别丑耻补测颈诲颈苍驳测补辞锄耻辞诲补辞,箩颈蝉丑颈蝉丑颈丑别苍肠丑耻苍诲别丑耻补,锄补颈肠丑耻苍测别产颈测补苍别谤飞耻虫颈苍丑补辞。蝉丑补苍驳测辞耻诲别丑耻补苍驳蝉丑补苍蝉丑颈辩耻,锄丑辞苍驳测辞耻诲别锄丑别箩颈补苍驳蹿耻肠丑耻苍箩颈补苍驳诲耻补苍诲别迟辞苍驳濒耻虫颈补苍测耻蹿耻测补苍驳辩耻蝉丑辞耻锄补颈测补苍锄丑辞苍驳,肠丑别苍驳蝉丑颈产耻蝉丑补辞诲颈蹿补苍驳苍别颈濒补辞,蝉丑辞耻诲补辞诲别箩颈苍驳箩颈蝉耻苍蝉丑颈测别丑别苍诲补,丑辞苍驳蝉丑耻颈箩颈苍谤耻虫颈补测辞耻丑补苍驳锄丑辞耻蝉丑颈辩耻丑辞耻丑补苍驳锄丑辞耻锄丑耻肠丑别苍驳辩耻测别蝉丑辞耻诲补辞测补苍箩耻苍诲别办补辞测补苍,产耻蝉丑补辞箩颈苍驳辩耻驳耻补苍产颈,虫颈虫颈蝉丑颈诲颈测耻虫颈丑耻箩颈苍驳辩耻测别蝉丑颈测颈锄丑颈驳补辞蝉丑耻颈飞别颈锄丑耻补苍驳迟补颈。

《科(Ke)学(Xue)》(20210730出(Chu)版(Ban))一(Yi)周(Zhou)论(Lun)文(Wen)导(Dao)读(Du)2021-08-01 17:07·科(Ke)学(Xue)网(Wang)编(Bian)译(Yi) | 李(Li)言(Yan)Science, 30 JULY 2021, VOL 373, ISSUE 6554《科(Ke)学(Xue)》2021年(Nian)7月(Yue)30日(Ri),第(Di)373卷(Juan),6554期(Qi)物(Wu)理(Li)学(Xue)PhysicsQubit spin ice量(Liang)子(Zi)自(Zi)旋(Xuan)冰(Bing)▲ 作(Zuo)者(Zhe):Andrew D. King, Cristiano Nisoli, Edward D. Dahl, Gabriel Poulin-Lamarre et al.▲ 链(Lian)接(Jie):https://science.sciencemag.org/content/373/6554/576▲ 摘(Zhai)要(Yao)人(Ren)工(Gong)自(Zi)旋(Xuan)冰(Bing)是(Shi)一(Yi)种(Zhong)可(Ke)设(She)计(Ji)的(De)受(Shou)挫(Cuo)自(Zi)旋(Xuan)系(Xi)统(Tong),其(Qi)几(Ji)何(He)结(Jie)构(Gou)和(He)拓(Tuo)扑(Pu)结(Jie)构(Gou)的(De)微(Wei)调(Diao)使(Shi)得(De)在(Zai)组(Zu)成(Cheng)层(Ceng)面(Mian)上(Shang)设(She)计(Ji)和(He)表(Biao)征(Zheng)奇(Qi)异(Yi)的(De)涌(Yong)现(Xian)成(Cheng)为(Wei)可(Ke)能(Neng)。在(Zai)此(Ci),我(Wo)们(Men)报(Bao)告(Gao)在(Zai)超(Chao)导(Dao)量(Liang)子(Zi)位(Wei)点(Dian)阵(Zhen)中(Zhong)的(De)自(Zi)旋(Xuan)冰(Bing)的(De)实(Shi)现(Xian)。与(Yu)传(Chuan)统(Tong)的(De)人(Ren)工(Gong)自(Zi)旋(Xuan)冰(Bing)不(Bu)同(Tong),我(Wo)们(Men)的(De)系(Xi)统(Tong)受(Shou)量(Liang)子(Zi)波(Bo)动(Dong)和(He)热(Re)波(Bo)动(Dong)的(De)影(Ying)响(Xiang)。基(Ji)态(Tai)经(Jing)典(Dian)地(Di)由(You)冰(Bing)规(Gui)则(Ze)描(Miao)述(Shu),我(Wo)们(Men)实(Shi)现(Xian)了(Liao)对(Dui)导(Dao)致(Zhi)库(Ku)仑(Lun)相(Xiang)的(De)脆(Cui)弱(Ruo)简(Jian)并(Bing)点(Dian)的(De)控(Kong)制(Zhi)。固(Gu)定(Ding)单(Dan)个(Ge)自(Zi)旋(Xuan)的(De)能(Neng)力(Li)使(Shi)我(Wo)们(Men)能(Neng)够(Gou)证(Zheng)明(Ming)高(Gao)斯(Si)定(Ding)律(Lv)在(Zai)二(Er)维(Wei)中(Zhong)出(Chu)现(Xian)的(De)有(You)效(Xiao)单(Dan)极(Ji)子(Zi)。所(Suo)展(Zhan)示(Shi)的(De)量(Liang)子(Zi)位(Wei)控(Kong)制(Zhi)为(Wei)未(Wei)来(Lai)对(Dui)受(Shou)拓(Tuo)扑(Pu)保(Bao)护(Hu)的(De)人(Ren)工(Gong)量(Liang)子(Zi)自(Zi)旋(Xuan)液(Ye)体(Ti)的(De)潜(Qian)在(Zai)研(Yan)究(Jiu)奠(Dian)定(Ding)了(Liao)基(Ji)础(Chu)。▲ AbstractArtificial spin ices are frustrated spin systems that can be engineered, in which fine tuning of geometry and topology has allowed the design and characterization of exotic emergent phenomena at the constituent level. Here, we report a realization of spin ice in a lattice of superconducting qubits. Unlike conventional artificial spin ice, our system is disordered by both quantum and thermal fluctuations. The ground state is classically described by the ice rule, and we achieved control over a fragile degeneracy point, leading to a Coulomb phase. The ability to pin individual spins allows us to demonstrate Gauss’s law for emergent effective monopoles in two dimensions. The demonstrated qubit control lays the groundwork for potential future study of topologically protected artificial quantum spin liquids.生(Sheng)命(Ming)科(Ke)学(Xue)Life ScienceHorizontally transmitted parasitoid killing factor shapes insect defense to parasitoids水(Shui)平(Ping)传(Chuan)播(Bo)的(De)寄(Ji)生(Sheng)蜂(Feng)致(Zhi)死(Si)因(Yin)子(Zi)促(Cu)成(Cheng)昆(Kun)虫(Chong)对(Dui)寄(Ji)生(Sheng)蜂(Feng)的(De)防(Fang)御(Yu)▲ 作(Zuo)者(Zhe):Laila Gasmi, Edyta Sieminska, Shohei Okuno, Rie Ohta, Cathy Coutu et al.▲ 链(Lian)接(Jie):https://science.sciencemag.org/content/373/6554/535▲ 摘(Zhai)要(Yao)膜(Mo)翅(Chi)目(Mu)寄(Ji)生(Sheng)蜂(Feng)和(He)昆(Kun)虫(Chong)病(Bing)毒(Du)共(Gong)享(Xiang)同(Tong)一(Yi)昆(Kun)虫(Chong)宿(Su)主(Zhu)之(Zhi)间(Jian)存(Cun)在(Zai)界(Jie)间(Jian)竞(Jing)争(Zheng)。此(Ci)前(Qian),有(You)研(Yan)究(Jiu)假(Jia)定(Ding)寄(Ji)生(Sheng)性(Xing)幼(You)虫(Chong)随(Sui)受(Shou)感(Gan)染(Ran)的(De)寄(Ji)主(Zhu)死(Si)亡(Wang)或(Huo)因(Yin)争(Zheng)夺(Duo)寄(Ji)主(Zhu)资(Zi)源(Yuan)而(Er)死(Si)亡(Wang)。在(Zai)此(Ci),我(Wo)们(Men)描(Miao)述(Shu)了(Liao)一(Yi)个(Ge)基(Ji)因(Yin)家(Jia)族(Zu)——拟(Ni)寄(Ji)生(Sheng)物(Wu)杀(Sha)死(Si)因(Yin)子(Zi)(pkf)——它(Ta)编(Bian)码(Ma)的(De)蛋(Dan)白(Bai)质(Zhi)对(Dui)小(Xiao)腹(Fu)茧(Jian)蜂(Feng)亚(Ya)科(Ke)的(De)拟(Ni)寄(Ji)生(Sheng)物(Wu)有(You)毒(Du),并(Bing)决(Jue)定(Ding)了(Liao)寄(Ji)生(Sheng)是(Shi)否(Fou)成(Cheng)功(Gong)。Pkfs在(Zai)几(Ji)个(Ge)昆(Kun)虫(Chong)致(Zhi)病(Bing)DNA病(Bing)毒(Du)科(Ke)和(He)一(Yi)些(Xie)鳞(Lin)翅(Chi)目(Mu)基(Ji)因(Yin)组(Zu)中(Zhong)被(Bei)发(Fa)现(Xian)。我(Wo)们(Men)提(Ti)供(Gong)的(De)证(Zheng)据(Ju)表(Biao)明(Ming),在(Zai)昆(Kun)虫(Chong)痘(Dou)病(Bing)毒(Du)、囊(Nang)泡(Pao)病(Bing)毒(Du)、杆(Gan)状(Zhuang)病(Bing)毒(Du)和(He)鳞(Lin)翅(Chi)目(Mu)昆(Kun)虫(Chong)中(Zhong)发(Fa)现(Xian)的(De)PKFs通(Tong)过(Guo)诱(You)导(Dao)易(Yi)感(Gan)寄(Ji)生(Sheng)蜂(Feng)细(Xi)胞(Bao)凋(Diao)亡(Wang)的(De)机(Ji)制(Zhi),对(Dui)内(Nei)寄(Ji)生(Sheng)虫(Chong)具(Ju)有(You)等(Deng)效(Xiao)和(He)特(Te)异(Yi)的(De)毒(Du)性(Xing)。这(Zhe)突(Tu)出(Chu)了(Liao)寄(Ji)生(Sheng)蜂(Feng)、病(Bing)毒(Du)和(He)它(Ta)们(Men)的(De)昆(Kun)虫(Chong)宿(Su)主(Zhu)之(Zhi)间(Jian)的(De)进(Jin)化(Hua)军(Jun)备(Bei)竞(Jing)赛(Sai)。▲ AbstractInterkingdom competition occurs between hymenopteran parasitoids and insect viruses sharing the same insect hosts. It has been assumed that parasitoid larvae die with the death of the infected host or as result of competition for host resources. Here we describe a gene family, parasitoid killing factor (pkf), that encodes proteins toxic to parasitoids of the Microgastrinae group and determines parasitism success. Pkfs are found in several entomopathogenic DNA virus families and in some lepidopteran genomes. We provide evidence of equivalent and specific toxicity against endoparasites for PKFs found in entomopoxvirus, ascovirus, baculovirus, and Lepidoptera through a mechanism that elicits apoptosis in the cells of susceptible parasitoids. This highlights the evolutionary arms race between parasitoids, viruses, and their insect hosts.材(Cai)料(Liao)科(Ke)学(Xue)Materials ScienceLiquid medium annealing for fabricating durable perovskite solar cells with improved reproducibility液(Ye)体(Ti)介(Jie)质(Zhi)退(Tui)火(Huo)制(Zhi)备(Bei)耐(Nai)用(Yong)的(De)钙(Gai)钛(Zuo)矿(Kuang)太(Tai)阳(Yang)能(Neng)电(Dian)池(Chi)▲ 作(Zuo)者(Zhe):Nengxu Li, Xiuxiu Niu, Liang Li, Hao Wang, et al.▲ 链(Lian)接(Jie):https://science.sciencemag.org/content/373/6554/561▲ 摘(Zhai)要(Yao)在(Zai)此(Ci),我(Wo)们(Men)报(Bao)告(Gao)一(Yi)种(Zhong)液(Ye)体(Ti)介(Jie)质(Zhi)退(Tui)火(Huo)(LMA)技(Ji)术(Shu),它(Ta)可(Ke)以(Yi)创(Chuang)造(Zao)一(Yi)个(Ge)强(Qiang)大(Da)的(De)化(Hua)学(Xue)环(Huan)境(Jing)和(He)恒(Heng)定(Ding)的(De)加(Jia)热(Re)场(Chang)来(Lai)调(Diao)节(Jie)整(Zheng)个(Ge)薄(Bao)膜(Mo)上(Shang)的(De)晶(Jing)体(Ti)生(Sheng)长(Chang)。以(Yi)我(Wo)们(Men)的(De)方(Fang)法(Fa)可(Ke)以(Yi)生(Sheng)产(Chan)薄(Bao)膜(Mo)结(Jie)晶(Jing)度(Du)高(Gao)、缺(Que)陷(Xian)少(Shao),所(Suo)需(Xu)化(Hua)学(Xue)计(Ji)量(Liang)学(Xue)和(He)整(Zheng)体(Ti)薄(Bao)膜(Mo)均(Jun)匀(Yun)性(Xing)的(De)薄(Bao)膜(Mo)。由(You)此(Ci)制(Zhi)备(Bei)的(De)钙(Gai)钛(Zuo)矿(Kuang)太(Tai)阳(Yang)能(Neng)电(Dian)池(Chi)(PSCs)产(Chan)生(Sheng)稳(Wen)定(Ding)功(Gong)率(Lv)输(Shu)出(Chu)为(Wei)24.04%(认(Ren)证(Zheng)为(Wei)23.7%,0.08 cm2),并(Bing)在(Zai)2000小(Xiao)时(Shi)的(De)运(Yun)行(Xing)后(Hou)仍(Reng)保(Bao)持(Chi)95%的(De)初(Chu)始(Shi)功(Gong)率(Lv)转(Zhuan)换(Huan)效(Xiao)率(Lv)(PCE)。此(Ci)外(Wai),1 cm2的(De)PSCs显(Xian)示(Shi)出(Chu)23.15%的(De)稳(Wen)定(Ding)功(Gong)率(Lv)输(Shu)出(Chu)(认(Ren)证(Zheng)PCE为(Wei)22.3%),并(Bing)在(Zai)1120小(Xiao)时(Shi)的(De)运(Yun)行(Xing)后(Hou)保(Bao)持(Chi)初(Chu)始(Shi)PCE的(De)90%,这(Zhe)说(Shuo)明(Ming)了(Liao)规(Gui)模(Mo)化(Hua)制(Zhi)造(Zao)的(De)可(Ke)行(Xing)性(Xing)。LMA对(Dui)气(Qi)候(Hou)的(De)依(Yi)赖(Lai)性(Xing)较(Jiao)小(Xiao),全(Quan)年(Nian)生(Sheng)产(Chan)设(She)备(Bei)的(De)性(Xing)能(Neng)差(Cha)异(Yi)可(Ke)以(Yi)忽(Hu)略(Lue)不(Bu)计(Ji)。该(Gai)方(Fang)法(Fa)为(Wei)以(Yi)可(Ke)规(Gui)模(Mo)化(Hua)和(He)可(Ke)重(Zhong)现(Xian)的(De)方(Fang)式(Shi)提(Ti)高(Gao)钙(Gai)钛(Zuo)矿(Kuang)薄(Bao)膜(Mo)和(He)光(Guang)伏(Fu)器(Qi)件(Jian)的(De)质(Zhi)量(Liang)开(Kai)辟(Bi)了(Liao)一(Yi)条(Tiao)新(Xin)的(De)有(You)效(Xiao)途(Tu)径(Jing)。▲ AbstractHere, we report a liquid medium annealing (LMA) technology that creates a robust chemical environment and constant heating field to modulate crystal growth over the entire film. Our method produces films with high crystallinity, fewer defects, desired stoichiometry, and overall film homogeneity. The resulting perovskite solar cells (PSCs) yield a stabilized power output of 24.04% (certified 23.7%, 0.08 cm2) and maintain 95% of their initial power conversion efficiency (PCE) after 2000 hours of operation. In addition, the 1-cm2 PSCs exhibit a stabilized power output of 23.15% (certified PCE 22.3%) and keep 90% of their initial PCE after 1120 hours of operation, which illustrates their feasibility for scalable fabrication. LMA is less climate dependent and produces devices in-house with negligible performance variance year round. This method thus opens a new and effective avenue to improving the quality of perovskite films and photovoltaic devices in a scalable and reproducible manner.Half-integer quantized anomalous thermal Hall effect in the Kitaev material candidate α-RuCl3α-RuCl3中(Zhong)的(De)半(Ban)整(Zheng)数(Shu)量(Liang)子(Zi)化(Hua)反(Fan)常(Chang)热(Re)霍(Huo)尔(Er)效(Xiao)应(Ying)▲ 作(Zuo)者(Zhe):T. Yokoi, S. Ma, Y. Kasahara, S. Kasahara, T. Shibauchi et al.▲ 链(Lian)接(Jie):https://science.sciencemag.org/content/373/6554/568▲ 摘(Zhai)要(Yao)近(Jin)日(Ri),有(You)研(Yan)究(Jiu)报(Bao)告(Gao)了(Liao)二(Er)维(Wei)蜂(Feng)窝(Wo)材(Cai)料(Liao)α-RuCl3的(De)半(Ban)整(Zheng)数(Shu)热(Re)量(Liang)子(Zi)霍(Huo)尔(Er)效(Xiao)应(Ying)电(Dian)导(Dao)。我(Wo)们(Men)发(Fa)现(Xian),即(Ji)使(Shi)在(Zai)没(Mei)有(You)平(Ping)面(Mian)外(Wai)分(Fen)量(Liang)的(De)磁(Ci)场(Chang)中(Zhong),也(Ye)出(Chu)现(Xian)了(Liao)半(Ban)整(Zheng)数(Shu)热(Re)霍(Huo)尔(Er)平(Ping)台(Tai)。量(Liang)子(Zi)化(Hua)热(Re)霍(Huo)尔(Er)电(Dian)导(Dao)的(De)场(Chang)角(Jiao)变(Bian)化(Hua)与(Yu)纯(Chun)基(Ji)塔(Ta)耶(Ye)夫(Fu)自(Zi)旋(Xuan)液(Ye)体(Ti)的(De)拓(Tuo)扑(Pu)Chern数(Shu)具(Ju)有(You)相(Xiang)同(Tong)的(De)符(Fu)号(Hao)结(Jie)构(Gou)。这(Zhe)表(Biao)明(Ming),即(Ji)使(Shi)在(Zai)α-RuCl3中(Zhong)存(Cun)在(Zai)非(Fei)基(Ji)塔(Ta)耶(Ye)夫(Fu)相(Xiang)互(Hu)作(Zuo)用(Yong)时(Shi),局(Ju)域(Yu)磁(Ci)矩(Ju)的(De)分(Fen)馏(Liu)仍(Reng)保(Bao)持(Chi)非(Fei)阿(A)贝(Bei)尔(Er)拓(Tuo)扑(Pu)次(Ci)序(Xu)。▲ AbstractHalf-integer thermal quantum Hall conductance has recently been reported for the two-dimensional honeycomb material α-RuCl3. We found that the half-integer thermal Hall plateau appears even for a magnetic field with no out-of-plane components. The measured field-angular variation of the quantized thermal Hall conductance has the same sign structure as the topological Chern number of the pure Kitaev spin liquid. This observation suggests that the non-Abelian topological order associated with fractionalization of the local magnetic moments persists even in the presence of non-Kitaev interactions in α-RuCl3.Linked Weyl surfaces and Weyl arcs in photonic metamaterials光(Guang)子(Zi)超(Chao)材(Cai)料(Liao)中(Zhong)连(Lian)接(Jie)外(Wai)尔(Er)表(Biao)面(Mian)和(He)外(Wai)尔(Er)弧(Hu)▲ 作(Zuo)者(Zhe):Shaojie Ma, Yangang Bi, Qinghua Guo, Biao Yang et al.▲ 链(Lian)接(Jie):https://science.sciencemag.org/content/373/6554/572▲ 摘(Zhai)要(Yao)我(Wo)们(Men)以(Yi)具(Ju)有(You)工(Gong)程(Cheng)电(Dian)磁(Ci)特(Te)性(Xing)的(De)超(Chao)材(Cai)料(Liao)为(Wei)基(Ji)础(Chu),构(Gou)建(Jian)了(Liao)一(Yi)个(Ge)具(Ju)有(You)杨(Yang)-单(Dan)极(Ji)子(Zi)和(He)外(Wai)尔(Er)表(Biao)面(Mian)的(De)系(Xi)统(Tong),通(Tong)过(Guo)选(Xuan)定(Ding)的(De)三(San)维(Wei)子(Zi)空(Kong)间(Jian),我(Wo)们(Men)观(Guan)察(Cha)到(Dao)了(Liao)一(Yi)些(Xie)有(You)趣(Qu)的(De)体(Ti)和(He)表(Biao)面(Mian)现(Xian)象(Xiang),如(Ru)外(Wai)尔(Er)表(Biao)面(Mian)和(He)表(Biao)面(Mian)外(Wai)尔(Er)弧(Hu)的(De)连(Lian)接(Jie)。我(Wo)们(Men)所(Suo)展(Zhan)示(Shi)的(De)光(Guang)子(Zi)外(Wai)尔(Er)表(Biao)面(Mian)和(He)外(Wai)尔(Er)弧(Hu)利(Li)用(Yong)高(Gao)维(Wei)拓(Tuo)扑(Pu)的(De)概(Gai)念(Nian)来(Lai)控(Kong)制(Zhi)电(Dian)磁(Ci)波(Bo)在(Zai)人(Ren)工(Gong)工(Gong)程(Cheng)光(Guang)子(Zi)介(Jie)质(Zhi)中(Zhong)的(De)传(Chuan)播(Bo)。▲ AbstractWe constructed a system possessing Yang monopoles and Weyl surfaces based on metamaterials with engineered electromagnetic properties, leading to the observation of several intriguing bulk and surface phenomena, such as linking of Weyl surfaces and surface Weyl arcs, via selected three-dimensional subspaces. The demonstrated photonic Weyl surfaces and Weyl arcs leverage the concept of higher-dimension topology to control the propagation of electromagnetic waves in artificially engineered photonic media.Power generation and thermoelectric cooling enabled by momentum and energy multiband alignments动(Dong)力(Li)和(He)能(Neng)量(Liang)多(Duo)波(Bo)段(Duan)校(Xiao)准(Zhun)的(De)发(Fa)电(Dian)和(He)热(Re)电(Dian)冷(Leng)却(Que)▲ 作(Zuo)者(Zhe):Bingchao Qin, Dongyang Wang, Xixi Liu, Yongxin Qin, Jin-Feng Dong et al.▲ 链(Lian)接(Jie):https://science.sciencemag.org/content/373/6554/556▲ 摘(Zhai)要(Yao)热(Re)电(Dian)材(Cai)料(Liao)传(Chuan)递(Di)热(Re)量(Liang)和(He)电(Dian)能(Neng),因(Yin)此(Ci)它(Ta)们(Men)可(Ke)以(Yi)用(Yong)于(Yu)发(Fa)电(Dian)或(Huo)冷(Leng)却(Que)应(Ying)用(Yong)。这(Zhe)些(Xie)材(Cai)料(Liao)中(Zhong)的(De)许(Xu)多(Duo)都(Du)有(You)狭(Xia)窄(Zhai)的(De)带(Dai)隙(Xi),特(Te)别(Bie)是(Shi)在(Zai)冷(Leng)却(Que)应(Ying)用(Yong)中(Zhong)。我(Wo)们(Men)通(Tong)过(Guo)铅(Qian)合(He)金(Jin)化(Hua)制(Zhi)备(Bei)了(Liao)具(Ju)有(You)良(Liang)好(Hao)热(Re)电(Dian)性(Xing)能(Neng)的(De)宽(Kuan)带(Dai)隙(Xi)SnSe晶(Jing)体(Ti)(Eg≈33 kBT)。Pb合(He)金(Jin)化(Hua)促(Cu)进(Jin)了(Liao)动(Dong)量(Liang)和(He)能(Neng)量(Liang)的(De)多(Duo)能(Neng)带(Dai)排(Pai)列(Lie),在(Zai)300 K时(Shi)功(Gong)率(Lv)因(Yin)数(Shu)高(Gao)达(Da)~75 μW cm-1 K - 2,平(Ping)均(Jun)优(You)点(Dian)ZT为(Wei)~1.90。我(Wo)们(Men)发(Fa)现(Xian),该(Gai)热(Re)电(Dian)器(Qi)件(Jian)能(Neng)够(Gou)实(Shi)现(Xian)约(Yue)4.4%的(De)热(Re)电(Dian)转(Zhuan)换(Huan)效(Xiao)率(Lv),以(Yi)及(Ji)约(Yue)45.7度(Du)的(De)最(Zui)大(Da)制(Zhi)冷(Leng)温(Wen)差(Cha)。这(Zhe)些(Xie)结(Jie)果(Guo)表(Biao)明(Ming),宽(Kuan)带(Dai)隙(Xi)化(Hua)合(He)物(Wu)可(Ke)用(Yong)于(Yu)热(Re)电(Dian)冷(Leng)却(Que)应(Ying)用(Yong)。▲ AbstractThermoelectric materials transfer heat and electrical energy, hence they are useful for power generation or cooling applications. Many of these materials have narrow bandgaps, especially for cooling applications. We developed SnSe crystals with a wide bandgap (Eg≈33 kBT) with attractive thermoelectric properties through Pb alloying. The momentum and energy multiband alignments promoted by Pb alloying resulted in an ultrahigh power factor of ~75 μW cm-1 K - 2 at 300 K, and an average figure of merit ZT of ~1.90. We found that a 31-pair thermoelectric device can produce a power generation efficiency of ~4.4% and a cooling ΔTmax of ~45.7 K. These results demonstrate that wide-bandgap compounds can be used for thermoelectric cooling applications.

原创2024-06-22 23:45·汽车头突发!资本大佬“并购之王”被曝失联,公司紧急回应2023-02-17 06:40·上观新闻2月16日晚间,一则华兴资本创始人包凡失联的消息震惊了整个投资圈。华兴资本控股第一时间也在港交所公告,确定公司暂时无法与公司董事会主席、执行董事、首席执行官和控股股东包凡先生取得联系,集团目前业务及运作维持正常。公司深夜公告确定创始人失联根据官方网站显示,包凡于2005年创建华兴资本集团,开展私募股权融资财务顾问业务,随后相继获得香港、美国、A股证券业务牌照,并在2018年完成香港上市,成为以服务创新经济的金融机构。包凡在资本市场非常活跃,在创建华兴资本集团之前,包凡曾任亚信科技(集团)首席战略官。此前有七年华尔街投资银行经验,先后服务于摩根士丹利和瑞士信贷。值得注意的是,官网还披露包凡目前担任上交所首届科技创新咨询委员会委员、中国保险资产管理业协会股权投资专业委员会副主任委员、未来论坛理事会成员等职务。根据公开资料,包凡最后一次露面是在2022年12月初,其出席2022未来科学大奖颁奖典礼。证券时报记者问询多个和包凡有交集的投资界人士,近期是否有工作交集或见面,对方均表示不方便评论。记者在华兴资本公众号发现,就在2月14日华兴资本旗下华兴新经济基金参与投资的一道新能源(衢州)科技有限公司官宣完成新一轮融资,资金将主要用于一道新能高效N型TOPcon 3.0电池、组件产能的提升。针对此次融资,华兴资本集团董事长、基金创始合伙人及首席投资官包凡也发表了自己的观点,他称碳中和是持续数十年的颠覆性能源革命,而光伏发电是碳中和的核心支柱。华兴坚定看好中国光伏公司会凭借技术和成本的绝对优势,引领全球碳中和进程并受益其中。目前光伏技术正处于从P型PERC到N型TOPCon转型的关键节点,一道新能凭借其先进的TOPCon技术优势和完善的生态,逐步成长为新一线光伏公司,相信一道新能终将成为碳中和革命中的全球领军公司。看好2023年二级市场修复带动一级投资活跃华兴资本作为近年在中国投资圈比较活跃的投资机构,高度聚焦创新经济的公司,旗下华兴新经济基金聚焦智能制造、科技、数字健康、公司服务、新经济等领域的投资,投出了一批知名的公司。尤其在其海外上市过程中,提供全方位的服务。在前几年中概股上市的热潮中,几乎每家公司上市背后,一二级市场都有华兴的参与。截至目前,华兴新经济基金已收获了包括美团、贝壳、药明康德、哔哩哔哩、理想汽车、泡泡玛特、华大智造、商汤科技、纳微半导体、创新奇智在内的多家上市公司,见证了一批创新经济领域的公司经历市场锤炼成长为伟大公司过程。根据华兴资本发布的最新报告显示,2022年是中国私募股权市场的关键转折年。从“募、投、退”整个闭环的币种分化来看,“内循环”加速扩张,人民币基金在中国股权投资市场的主导地位逐渐稳固。2023年开年已经过去的时间内,1月市场交易活跃,开年市场回暖迹象明显。平均周交易量突破百亿人民币大关,对比2022年同期增长显著,随着市场信心的修复,一级市场最坏的时候可能已经过去。上述报告还指出,展望2023市场信心逐步回暖,人民币强势主导地位持续稳固,早期投资也将延续,与此同时,政策改善的确定性较强,此前受打击、受压制的行业有望迎来整体性的政策面修复,尤其在二级市场看好反转的大趋势,二级传导至一级大概需要6个月时间,2023年二级市场的修复有望带动一级市场活跃,带动效应将重点体现在大消费、公司服务、医疗板块。栏目主编:秦红 文字编辑:卢晓川 题图来源:视觉中国 图片编辑:苏唯来源:作者:证券时报娱乐深喉 - 凤凰视频《深喉》完整版免费在线观看-剧情电影频道 - 星空影视

这与老人的心理状态或者是不良的睡眠习惯有关老人内心的焦虑、抑郁和压力会使得睡觉时老人的精神集中无法放松下来

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