检索结果-南通市图书馆

Direct Observation of High-Temperature Superconductivity in One-Unit-Cell FeSe Films

Chinese Physics Letters 2014年第1期31卷 156-160页

作者：张文号孙袆张金松李坊森郭明华赵弇斐张慧敏彭俊平邢颖王慧超 FUJITA Takeshi hirata akihiko 李志丁浩汤辰佳王萌王庆艳何珂季帅华陈曦王俊峰夏正才李亮王亚愚王健王立莉陈明伟薛其坤马旭村 State Key Lab of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Beijing 100084 International Center for Quantum Materials School of Physics Peking University Beijing 100871 Collaborative Innovation Center of Quantum Matter Beijing Institute of Physics Chinese Academy of Sciences Beijing 100190 WPI Advanced Institute for Materials Research Tohoku University Sendai 9808577 Japan Wuhan National High Magnetic Field Center Huazhong University of Science and Technology Vguhan 430071

We prepared one-unit-ceil （1-UC） thick FeSe films on insulating SrTiOa substrates with non-superconducting FeTe protection layers by molecular beam epitaxy for ex situ studies. By direct transport and magnetic measurements, we provide definitive evidence for high temperature superconductivity in the 1-UC FeSe films with an onset Tc above 40 K and an extremely large critical current density fie Jc-1.7× 106 A/cm2 at 2K, which are much higher than Tc-8K and Jc-104 A/cm^2 for bulk FeSe, respectively. Our work may pave the way to enhancing and tailoring superconductivity by interface engineering.

关键词： Selenium compounds

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Anal cushion lifting method is a novel radical management strategy for hemorrhoids that does not involve excision or cause postoperative anal complications

引用

World Journal of Gastrointestinal Surgery 2015年第10期7卷 273-278页

作者： Gentaro Ishiyama Toshihiko Nishidate Yuji Ishiyama akihiko Nishio Ken Tarumi Maiko Kawamura Kenji Okita Toru Mizuguchi Mineko Fujimiya Koichi hirata Department of Anorectal Surgery Sapporo Ishiyama Hospital Department of Anatomy II Graduate School of Medicine Sapporo Medical University Department of Surgery Surgical Oncology and ScienceGraduate School of Medicine Sapporo Medical University

AIM: To describe the anal cushion lifting(ACL) method with preliminary clinical results. METHODS: Between January to September 2007, 127 patients who received ACL method for hemorrhoid was investigated with informed consent. In this study, three surgeons who specialized in anorectal surgery performed the procedures. Patients with grade two or more severe hemorrhoids according to Goligher's classification were considered to be indicated for surgery. The patients were given the choice to undergo either the ACL method or theligation and excision method. ACL method is an original technique for managing hemorrhoids without excision. After dissecting the anal cushion from the internal sphincter muscle, the anal cushion was lifted to oral side and ligated at the proper position. Clinical characteristics and outcomes of patients were recorded including complications after surgery. RESULTS: A total of 127 patients were enrolled. Their median age was 42(19-84) years, and 74.8% were female. In addition, more than 99% of the patients had grade 3 or worse hemorrhoids. The median followup period was 26(0-88) mo, and the median operative time was 15(4-30) min. After surgery, analgesics were used for a median period of three days(0-21). Pain control was achieved using extra-oral analgesic drugs, although some patients required intravenous injections of analgesic drugs. The median duration of the patients' postoperative hospital stay was 7(2-13) d. A total of 10 complications(7.9%) occurred. Bleeding was observed in one patient and was successfully controlled with manual compression. Urinary retention occurred in 6 patients, but it disappeared spontaneously in all cases. Recurrent hemorrhoids developed in 3 patients after 36, 47, and 61 mo, respectively. No anal stenosis or persistent anal pain occurred. CONCLUSION: We consider that the ACL method might be better than all other current methods for managing hemorrhoids.

关键词： Hemorrhoidectomy Anal stenosis Anal cushion liftin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：