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Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in underdoped Bi2Sr2CaCu2O8+δ

中国水利学会2016学术年会

作者： Mitsuru Ohira yu’usuke watanabe Takashi Gomi

＜正＞1 Introduction Riparian forest directly links to stream channel through regulating water,sediment,and organic matter *** and channel condition can differ depending on the history and types of forest disturbances...

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National Science Review 2024年第5期11卷 142-152页

作者： Shiyuan Wang Yijun yu Jinxiang Hao Keyi Liang Bingke Xiang Jinjiang Zhu Yishi Lin Yinping Pan Genda Gu Kenji watanabe Takashi Taniguchi Yang Qi yuanbo Zhang Yihua Wang State Key Laboratory of Surface Physics and Department of Physics Fudan University Condensed Matter Physics and Materials Science Department Brookhaven National Laboratory Research Center for Functional Materials National Institute for Materials Science International Center for Materials Nanoarchitectonics National Institute for Materials Science Shanghai Research Center for Quantum Sciences

Superconducting phase transitions in two dimensions lie beyond the description of the Ginzburg-Landau symmetry-breaking paradigm for three-dimensional *** are Berezinskii-KosterlitzThouless（BKT） transitions of paired-electron condensate driven by the unbinding of topological excitations,*** recently discovered monolayers of layered high-transition-temperature（TC）cuprate superconductor Bi2Sr2CaCu2O8+δ（Bi2212） meant that this 2D superconductor promised to be ideal for the study of unconventional *** inhomogeneity posed challenges for distinguishing BKT physics from charge correlations in this ***,we utilize the phase sensitivity of scanning superconducting quantum interference device microscopy susceptometry to image the local magnetic response of underdoped Bi2212 from the monolayer to the bulk throughout its phase *** monolayer segregates into domains with independent phases at elevated temperatures below *** a single domain,we find that the susceptibility oscillates with flux between diamagnetism and paramagnetism in a Fraunhofer-like pattern up to *** finite modulation period,as well as the broadening of the peaks when approaching Tc from below,suggests well-defined vortices that are increasingly screened by the dissociation of vortex-antivortex plasma through a BKT *** the multilayers,the susceptibility oscillation differs in a small temperature regime below TC,consistent with a dimensional crossover led by interlayer *** as strong evidence for BKT transition in the bulk,we observe a sharp jump in phase stiffness and paramagnetism at small fields just below *** results unify the superconducting phase transitions from the monolayer to the bulk underdoped Bi2212,and can be collectively referred to as the BKT transition with interlayer coupling.

关键词： cuprate superconductor monolayer Berezinskii-Kosterlitz-Thouless transition scanning SQUID paramagnetic Meissner effect

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着丝粒蛋白Fta2磷酸化对减数分裂的影响

遗传 2024年第7期46卷 552-559页

作者：倪子涵闵羽马玲玲渡边嘉典江南大学未来食品科学中心无锡214122 江南大学生物工程学院无锡214122

在减数分裂过程中,黏连蛋白(cohesin)在着丝粒区域定位出现缺陷时会导致一系列疾病的产生。黏连蛋白的正确定位离不开装载复合体Mis4-Ssl3的参与,现已知黏连蛋白在装载复合体的帮助下完成装载过程,但是其如何在着丝粒区域定位仍不清楚... 详细信息

在减数分裂过程中,黏连蛋白(cohesin)在着丝粒区域定位出现缺陷时会导致一系列疾病的产生。黏连蛋白的正确定位离不开装载复合体Mis4-Ssl3的参与,现已知黏连蛋白在装载复合体的帮助下完成装载过程,但是其如何在着丝粒区域定位仍不清楚。基于已有研究报道黏连蛋白在着丝粒的定位由着丝粒蛋白的磷酸化介导,本研究从Sim4着丝粒蛋白复合体组分Fta2蛋白着手,通过生物信息学手段寻找潜在的磷酸化位点,在裂殖酵母(Schizosaccharomyces pombe)中构建了fta2-9A和fta2-9D突变体,并通过噻苯咪唑(thiabendazole,TBZ)敏感度测试和荧光显微定位对其表型进行检测。结果显示,Fta2蛋白的磷酸化对有丝分裂没有影响,但对减数分裂染色体分离存在影响。本研究表明Fta2的磷酸化对减数分裂非常重要,很可能与减数分裂特有的黏连蛋白定位有关。

关键词：减数分裂黏连蛋白 Fta2 磷酸化装载复合体

Moa1与CENP-C和Rec8的相互作用及其在裂殖酵母减数分裂中的功能

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遗传 2024年第8期46卷 649-660页

作者：闵羽倪子涵马玲玲渡边嘉典江南大学未来食品科学中心无锡214122 江南大学生物工程学院无锡214122

减数分裂特异性调控分子Moa1定位到着丝粒受到动粒蛋白CENP-C的调控,同时Moa1参与黏连蛋白Rec8介导的着丝粒区域姐妹染色单体的黏连。为了研究这些蛋白质之间的相互作用,本研究利用酵母双杂交实验(yeast two-hybrid assay)测定分析了Moa... 详细信息

减数分裂特异性调控分子Moa1定位到着丝粒受到动粒蛋白CENP-C的调控,同时Moa1参与黏连蛋白Rec8介导的着丝粒区域姐妹染色单体的黏连。为了研究这些蛋白质之间的相互作用,本研究利用酵母双杂交实验(yeast two-hybrid assay)测定分析了Moa1和CENP-C、Rec8之间的相互作用,并通过在Moa1中定点突变鉴定了与CENP-C和Rec8相互作用所需的一些氨基酸残基。实验结果表明,Moa1和CENP-C的相互作用对于Moa1参与调节姐妹动粒的单极附着很重要。然而,双杂交实验中与Rec8相互作用所需的Moa1的S143和T150突变没有显示出Moa1或Rec8功能的显著缺陷。这表明氨基酸残基的突变可能不足以干扰体内Moa1和Rec8之间的相互作用,需要进一步的研究来确定Moa1和Rec8的相互作用域。本研究揭示了影响减数分裂同源染色体分离的Moa1氨基酸位点,为减数分裂的染色体分离机制提供更深入的理解。

关键词：减数分裂黏连蛋白动粒单取向

Improvement in the information-oriented construction of temporary soil-retaining walls using sparse modeling

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Underground Space 2019年第3期4卷 210-224页

作者： yu Otake Shinnosuke Kodama Shinya watanabe Niigata University Japan

This fundamental study investigates how“super-resolution”technology based on sparse modeling,which has attracted attention in various fields,can be applied to the information-oriented construction of temporary soil-retaining *** machine learning process adopted here is based on the analytical results of numerical computations that involve many preliminary assumptions related to soilretaining walls,rather than the collection of images utilized in the image reconstruction ***,bases for vectors related to the displacement of retaining walls are generated using efficient inverse analysis and“super-resolution”processing from sparse amounts of physical observation *** purpose is to improve the properties of the inverse problem by artificial interpolation based on numerical *** has been shown that the inverse analysis related to the displacement of retaining walls can be performed efficiently and that highly accurate predictions can be achieved even with limited physical *** general,the inverse analysis of retaining walls is an ill-posed ***,if the number of apparent observations reconverted by“super-resolution”technology exceeds the number of unknown parameters,then the displacement distribution of a retaining wall can be estimated *** original idea is to break down the inverse problem into two separate problems by addressing the earth pressure distribution acting on the retaining *** makes it possible to identify the part to which the nonlinear inverse problem can be applied and to facilitate the efficient estimation and interpretation of the results.

关键词： Information-oriented construction Temporary soil-retaining wall Super-resolution Sparse modeling

Age,growth,and mortality rate of the yellow goosefish Lophius litulon(Jordan,1902)in the Yellow Sea

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Journal of Oceanology and Limnology 2021年第2期39卷 732-740页

作者： yu SUN Chi ZHANG Yongjun TIAN Yoshiro watanabe College of Fisheries Ocean University of ChinaQingdao 266003China Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and TechnologyQingdao 266003China Atmosphere and Ocean Research Institute University of Tokyo5-1-5 KashiwanohaKashiwaChiba 277-8564Japan

With the decline in the most fisheries resources in the Yellow Sea,the yellow goosefish Lophius litulon has increased in commercial and ecological importance in recent *** studied the length distribution,length-weight relationship,age composition,growth pattern,mortality,and exploitation rates of the yellow goosefish in the Yellow *** length(TL)of females and males ranged from 173 to 582 mm and 178 to 500 mm,*** length-weight relationships were also estimated for females and *** classes from 2 to 4 years predominated in the *** von Bertalanffy growth function(VBGF),estimated based on non-linear least-squares methodology,showed significant differences between *** attained a greater estimated asymptotic total length(765 mm TL)compared to males(579 mm TL).The VBGF did not differ significantly between stocks of the northern Yellow Sea and the southern Yellow *** natural instantaneous mortality rate(M)ranged from 0.25/a to 0.33/a based on four age-and length-based *** instantaneous mortality rate(Z)of total samples calculated by the age-based catch curve method was 0.591/a and the average fishing mortality(F)was 0.30/*** exploitation rate(E)was approximately 0.5,indicating that the population of *** in the Yellow Sea may be *** results provide a reference for the present status of *** and information for the management.

关键词： Lophius litulon Yellow Sea age growth mortality rate

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早稻田大学国际文学馆（村上春树图书馆）

城市环境设计 2024年第1期147卷 116-123页

作者：渡边启太渡部悠川澄·小林研二写真事务所

我们将早稻田大学校园内的4号楼改建为新的村上春树图书馆，成为一条穿过原有建筑的“木隧道”。木隧道超越了时间和空间，我们将村上春树小说中连接不同维度的“隧道”转译为建筑空间。我们通过将外墙重新漆成白色涂装和原来的建筑，...

我们将早稻田大学校园内的4号楼改建为新的村上春树图书馆，成为一条穿过原有建筑的“木隧道”。木隧道超越了时间和空间，我们将村上春树小说中连接不同维度的“隧道”转译为建筑空间。我们通过将外墙重新漆成白色涂装和原来的建筑，强调了新建的三维木屏风雨棚。雨棚作为隧道入口的指示，也代表了维度之间的边界。这条木制隧道纵向贯穿了原有的楼板，同时用作书架、剧院和演讲厅。20世纪是混凝土的时代，混凝土具有“坚硬”和“冰冷”的特性。相比之下，对于这个图书馆，我们想象了一条隧道，通过使用细腻柔软的木材来保护我们、培育梦想。

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Deterministic and replaceable transfer of silver flakes for microcavities

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Frontiers of physics 2023年第3期18卷 139-146页

作者： Tingting Wang Zhihao Zang yuchen Gao Kenji watanabe Takashi Taniguchi Wei Bao yu Ye State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China Collaborative Innovation Center of Quantum Matter Beijing 100871China Research Center for Functional Materials National Institute for Materials Science1-1 NamikiTsukuba305-0044Japan International Center for Materials Nanoarchitectonics National Institute for Materials Science1-1 NamikiTsukuba305-0044Japan Electrical&Computer Engineering University of Nebraska-LincolnLincolnNE 68588USA Yangtze Delta Institute of Optoelectronics Peking UniversityNantong 226010China

How to fabricate high-quality microcavities simply and at low cost without causing damage to environmentally sensitive active layers such as perovskites are crucial for the studies of exciton–polaritons,however,it remains challenging in the field of microcavity ***,once the top mirror is deposited,the detuning of the microcavity is fixed and there is no easy way to tune ***,we have developed a method for deterministically transferring silver mirrors,which is relatively simple and guarantees the active layer from damaging of high temperature,particle bombardment,etc.,during the deposition of the top ***,with the help of a glass probe,we demonstrate a replaceable silver transfer method to tune the detuning of the microcavity,thereby changing the coupling of photons and excitons *** developed deterministic and replaceable silver mirror transfer methods will provide the capability to fabricate high-quality and tunable microcavities and play an active role in the development of the exciton–polariton field.

关键词： silver microcavity transfer perovskite

Right hepatectomy for giant cavernous hemangioma with diffuse hemangiomatosis around Glisson's capsule

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World Journal of Gastroenterology 2014年第25期20卷 8312-8316页

作者： yu Ohkura Masaji Hashimoto Seigi Lee Kazunari Sasaki Masamichi Matsuda Goro watanabe Department of Digestive Surgery Hepato Pancreato Billiary Surgery UnitToranomon HospitalTokyo 105-8470Japan

Diffuse liver hemangiomatosis with giant cavernous hemangioma in adult is extremely rare. A 35 year-old woman presented to hospital with main complaint of epigastric pain and abdominal fullness. An enhanced computed tomography scan revealed a massive liver tumor in right lobe about 150 mm in size. There was contrast enhancement at the periphery of the mass consistent with a cavernous hemangioma. She underwent right hepatectomy. Histologically, it was diagnosed as a cavernous hemangioma. And also, hemangiomatous lesions were scattered around the Glisson’s capsule on the back ground liver. These hemangiomatous lesions were not recognized preoperatively. Even if we couldn’t diagnose hemangiomatosis around the main giant hemangioma preoperatively, we need to take enough surgical margins because the giant hemangioma has the potential to have small hemangiomatous lesions around the tumor. We reported right hepatectomy for giant cavernous hemangioma with diffuse hepatic hemangiomatosis without an extrahepatic lesion in an adult.

关键词： Giant cavernous hemangioma Hemangiomatosis Right hepatectomy Around Glisson’ s capsule Surgery

Fabrication and superconducting properties of nano-SiC doped MgB_2 tapes

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Chinese Science Bulletin 2007年第18期52卷 2477-2480页

作者： ZHANG XianPing MA YanWei GAO ZhaoShun yu ZhengGuang WANG DongLiang watanabe K GUO JianDong Applied Superconductivity Laboratory Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100080 China Institute for Materials Research Tohoku University Sendai 980-8577 Japan Department of Physics Peking University Beijing 100080 China

Nano-SiC doped MgB2 tapes were prepared by the in situ powder-in-tube method. Heat treatment was performed at 650℃ for 1 h. XRD data indicate that SiC particles had reacted with the MgB2 during sintering process. MgB2 core seemed to be denser after SiC doping, and the critical temperature was slightly depressed. The critical current density Jc of the SiC doped tapes was significantly enhanced in magnetic fields up to 14 T compared to the undoped ones. For the 5% SiC doped samples, Jc was in- creased by a factor of 32 at 4.2 K, 10 T. The enhancement of Jc-B properties in SiC doped MgB2 tapes is considered to be due to the enhancement of grain linkages and the introduction of effective flux pining centers. The substitution of B by C in MgB2 grains is thought to be the main reason for the improve- ment of the flux pinning ability in SiC doped MgB2 tapes.

关键词：硼化镁纳米碳化硅临界电流超导电性