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Highly integrated sulfur cathodes with strong sulfur/high-strength binder interactions enabling durable high-loading lithium-sulfur batteries

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Journal of Energy Chemistry 2020年第10期29卷 71-79页

作者： Arif Rashid Xingyu Zhu gulian Wang Chengzhi Ke Sha Li Pengfei Sun Zhongli Hu Qiaobao Zhang Li Zhang College of Energy Soochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhou 215006JiangsuChina Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005FujianChina State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005FujianChina

The development of high-sulfur-loading Li-S batteries is a key prerequisite for their commercial *** requires to surmount the huge polarization,severe polysulfide shuttling and drastic volume change caused by electrode ***-strength polar binders are ideal for constructing robust and long-life high-loading sulfur cathodes but show very weak interfacial interaction with non-polar sulfur *** address this issue,this work devises a highly integrated sulfur@polydopamine/highstrength binder composite cathodes,targeting long-lasting and high-sulfur-loading Li-S *** super-adhesion polydopamine(PD)can form a uniform nano-coating over the graphene/sulfur(G-S)surface and provide strong affinity to the cross-linked polyacrylamide(c-PAM)binder,thus tightly integrating sulfur with the binder network and greatly boosting the overall mechanical strength/conductivity of the ***,the PD coating and c-PAM binder rich in polar groups can form two effective blockades against the effusion of soluble *** such,the 4.5 mg cm−2 sulfur-loaded G-S@PD-c-PAM cathode achieves a capacity of 480 mAh g−1 after 300 cycles at 1 C,while maintaining a capacity of 396 mAh g−1 after 50 cycles at 0.2 C when the sulfur loading rises to 9.1 mg cm−*** work provides a system-wide concept for constructing high-loading sulfur cathodes through integrated structural design.

关键词： Cross-linked high-strength polar binder Highly integrated electrode structure High-sulfur-loading Li-S battery Polydopamine nano-bonding layer Strong sulfur/binder interaction

Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium

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Nano Research 2024年第7期17卷 6575-6581页

作者： Jennifer Koch Carla Cirillo Sebastiano Battisti Leon Ruf Zahra Makhdoumi Kakhaki Alessandro Paghi Armen gulian Serafim Teknowijoyo Giorgio De Simoni Francesco Giazotto Carmine Attanasio Elke Scheer Angelo Di Bernardo Department of Physics University of KonstanzUniversitätsstraße 1078464 KonstanzGermany CNR-Spin c/o Universitàdegli Studi di Salernovia Giovanni Paolo II 13284084 Fisciano(SA)Italy NEST Istituto Nanoscienze-CNR and Scuola Normale SuperiorePiazza San Silvestro 1256127 PisaItaly Dipartimento di Fisica“E.R.Caianiello” Universitàdegli Studi di SalernoVia Giovanni Paolo II 13284084 Fisciano(SA)Italy Advanced Physics Laboratory Institute for Quantum StudiesChapman UniversityBurtonsvilleMD 20866USA

The application of a gate voltage to control the superconducting current flowing through a nanoscale superconducting constriction,named as gate-controlled supercurrent(GCS),has raised great interest for fundamental and technological *** gain a deeper understanding of this effect and develop superconducting technologies based on it,the material and physical parameters crucial for the GCS effect must be ***-down fabrication protocols should also be optimized to increase device scalability,although studies suggest that top-down fabricated devices are more resilient to show a ***,we investigate gated superconducting nanobridges made with a top-down fabrication process from thin films of the noncentrosymmetric superconductor niobium rhenium with varying ratios of the constituents(NbRe).Unlike other devices previously reported and made with a top-down approach,our NbRe devices systematically exhibit a GCS effect when they were fabricated from NbRe thin films with small grain size and etched in specific *** observations pave the way for the realization of top-down-made GCS devices with high *** results also imply that physical parameters like structural disorder and surface physical properties of the nanobridges,which can be in turn modified by the fabrication process,are crucial for a GCS observation,providing therefore also important insights into the physics underlying the GCS effect.

关键词： superconductivity non-centrosymmetric superconductors superconducting devices gated devices gate-controlled supercurrent top-down fabrication

0.5%甲硝唑液根尖注射治疗尖周炎临床疗效的初步观察

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第三军医大学学报 1999年第3期21卷 168-168,177页

作者：游古莲林景春第三军医大学附属新桥医院口腔科

１９９５年３月始，笔者用０．５％甲硝唑液根尖注射治疗根尖周炎７０例９７牙与口服药物组７０例９７牙的疗效作了比较，现报告如下。１临床资料１．１一般资料将同期就诊的急慢性根尖周炎１４０例１９４牙（伴脓窦者１０２牙）随机分... 详细信息

１９９５年３月始，笔者用０．５％甲硝唑液根尖注射治疗根尖周炎７０例９７牙与口服药物组７０例９７牙的疗效作了比较，现报告如下。１临床资料１．１一般资料将同期就诊的急慢性根尖周炎１４０例１９４牙（伴脓窦者１０２牙）随机分成注射组与服药组各７０例９７牙（５...

关键词：根尖周围炎注射疗法甲硝唑液

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改良根管疗法治疗多根管后牙尖周炎

第三军医大学学报 1999年第5期21卷 346-346,350页

作者：游古莲林景春赵瑛第三军医大学附属新桥医院口腔科

治疗尖周炎最有效的方法是根管充填。而后牙根管数量多，弯曲小且分叉亦多，操作不方便，给根管扩大和充填带来困难。因此，笔者自１９９６年来，用替硝唑、头孢氨苄霉素糊剂行新根管疗法治疗多根管后牙尖周炎１０６例１２９牙，现报告... 详细信息

治疗尖周炎最有效的方法是根管充填。而后牙根管数量多，弯曲小且分叉亦多，操作不方便，给根管扩大和充填带来困难。因此，笔者自１９９６年来，用替硝唑、头孢氨苄霉素糊剂行新根管疗法治疗多根管后牙尖周炎１０６例１２９牙，现报告如下。１材料和方法１．１一般资料男...

关键词：尖周炎根管充填术多根管后牙

GIS/ES技术在突发性环境污染事故应急管理中的应用探讨

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环境科学学报 1999年第5期19卷 567-571页

作者：许健吕永龙王桂莲中科院生态环境研究中心

探讨了ＧＩＳ／ＥＳ技术应用于突发性环境污染事故应急管理的可行性及途径。

关键词：突发性环境污染事故 GIS/ES技术应急管理

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安徽省属国企经营者激励约束制度改革研究

江淮论坛 2007年第3期 41-44,53页

作者：周古廉叶维根贾贤运安徽省人大经财委安徽省社科院安徽合肥230001

国有企业经营者激励与约束制度建设,是国企现代企业制度建设的核心内容之一,一个有效的经营者激励与约束制度,将会大大促进企业治理机制的完善和企业效益的提升。本文从对安徽省属国有企业激励与约束制度建设现状分析从手,评价现有制度... 详细信息

国有企业经营者激励与约束制度建设,是国企现代企业制度建设的核心内容之一,一个有效的经营者激励与约束制度,将会大大促进企业治理机制的完善和企业效益的提升。本文从对安徽省属国有企业激励与约束制度建设现状分析从手,评价现有制度的优劣,并提出了一系列改进与完善国有企业激励约束制度的政策建议。

关键词：国企经营者激励与约束治理创新

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基于地面三维激光扫描的三峡库区危岩体监测

水文地质工程地质 2021年第4期48卷 124-132页

作者：褚宏亮邢顾莲李昆仲王国利段奇三中国地质环境监测院(自然资源部地质灾害防治技术指导中心) 北京100081 西藏自治区地质环境监测总站西藏拉萨850000 北京建筑大学测绘与城市空间信息学院北京102616 北京地景科技有限公司北京101400

三峡水库周期性蓄水改变了岸坡内的地下水渗流场和应力场,降低岩土体的剪切强度,对库岸边坡、岩体稳定性影响很大。以往库区岸坡岩体形变监测主要通过设置固定点进行观测,难以发现岩体整体变化情况。地面三维激光扫描方法能获取岩体整... 详细信息

三峡水库周期性蓄水改变了岸坡内的地下水渗流场和应力场,降低岩土体的剪切强度,对库岸边坡、岩体稳定性影响很大。以往库区岸坡岩体形变监测主要通过设置固定点进行观测,难以发现岩体整体变化情况。地面三维激光扫描方法能获取岩体整体表面厘米精度的点云数据,具有无需接触目标、获取速度快、精度高等特点,非常适合库区高陡危岩体表面三维形变监测。以巫山箭穿洞危岩体为例,采用地面三维激光扫描方法对箭穿洞危岩体进行了为期2年(2017—2018年)共3期监测,以第一期观测目标周围稳定岩体数据为基准,对数据进行重叠点云迭代配准,点云配准精度优于±2.7 cm。针对箭穿洞危岩体在观测时段内的变化情况,构建危岩体区域的基准不规则三角网模型,以点到基准面最近距离法结合危岩体变化区间分析其变形。通过对比分析箭穿洞危岩体3期观测数据,发现相对于2017年,2018年箭穿洞危岩体左侧岩体有变形趋势;在库区蓄水阶段,危岩体局部多处存在明显凹陷变化,局部因蓄水影响发生约-0.03~-0.07 m变形。结果证明三维激光扫描技术在库岸高陡边坡形变监测中的有效性,为三峡库区高陡危岩体形变监测及地质灾害防治工作提供了参考。

关键词：地面三维激光扫描三峡库区危岩体箭穿洞变形监测

电生理检查阴性的单纯晕厥患者中心脏事件的临床预测指标

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世界核心医学期刊文摘（心脏病学分册） 2006年第9期2卷 30-31页

作者： Da Costa A. gulian J. - L. Romeyer-Bouchard C. 徐永城(译) 马超(校) Service de Cardiologie Hopital Nord Centre Hospitalier Universitaire de Saint-Etienne42 055 Saint-Etienne Cedex 2 France 不详

Background: Patients with syncope or near syncope of unknown etiology represen t a great challenge to cardiologists. An initial symptomatic episode triggers a series of diagnostic analysis which remain unsatisfactory when negative. More in vasive tools such as electrophysiologic testing yield only partial answers to ri sk stratification while the complementary implantable holter diagnostics are not usually considered until a recurrent episode is documented. Objective: This stu dy targets predictors of significant cardiac rhythmic events in patients with a reported episode of syncope or near syncope presenting with negative diagnostics and electrophysiologic study results(EPS). A significant cardiac rhythmic event was defined as a combined end-point of(1) symptomatic AV block;(2) symptomatic conduction abnormalities requiring pacemaker therapy;(3) symptomatic sustained ventricular arrhythmia; and(4) sudden ***: All patients undergoing EPS after a first episode of syncope or presyncope between January 1997 and Decembe r 2001 were included for analysis. The study population consisted of 329 pts(42. 6%women), 21 to 96 years old(mean 70±15 years) referred for an EP study for sy ncope or near syncope. Results: Of the 329 patients who underwent EPS, 305(92.7 %) had follow-up data. The population, mean age 70(±15 years) and composed of 42%women, presented with hypertension(51.5%), diabetes mellitus(14.4%), hype rcholesterolemia(30%), tobacco use(35%), a familial history of coronary heart disease(22%), history of stroke(4%), history of MI(12%), history of atrial fi brillation(10%), structural heart disease(17.4%), left ventricular ejection fr action 61(±11%) and ECG abnormalities(37%). These anomalies included right(RB BB) or left(LBBB) bundle branch blocks, left anterior fascicular block(LAFB), le ft posterior fascicular block(LPFB), bifascicular block(RBBB +LAFB) and traces of myocardial in farction. The mean follow-up was 31±20 months with 5%of patients recordin

关键词：临床预测指标电生理检查晕厥心脏事件阴性诊断性检查房室传导阻滞器质性心脏病

基于普适型监测的多参数预警研究--以三峡库区卡门子湾滑坡为例

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西北地质 2021年第3期54卷 259-269页

作者：马娟赵文祎齐干刘哲儒邢顾莲叶思卿陈瑶中国地质环境监测院北京100081 湖北省地质环境总站湖北武汉430022

笔者以三峡库区卡门子湾滑坡为例,介绍了此次滑坡监测预警实验选点踏勘设计,安装实施运行、监测数据实时传输、系统自动发出预警等全过程。监测数据前端采集选用普适型多参数集成监测设备(裂缝+倾角+加速度计)、雨量计、加速度计等,对... 详细信息

笔者以三峡库区卡门子湾滑坡为例,介绍了此次滑坡监测预警实验选点踏勘设计,安装实施运行、监测数据实时传输、系统自动发出预警等全过程。监测数据前端采集选用普适型多参数集成监测设备(裂缝+倾角+加速度计)、雨量计、加速度计等,对“降雨+变形”等关键致灾因子开展专业化监测;通讯采用NB lot等公共通信网组合方式进行传输,有效降低了通信成本和设备功耗;监测数据汇聚至省级平台,并实时同步至自主研发的国家级监测预警系统,通过判据模型自动触发预警。通过近半年的系统运行,滑坡体上安装的裂缝计、加速度计等均及时捕捉到了明显的滑坡加速变形信息,初步显现了普适型设备的监测成效和预警作用。同时,系统将预警消息实时发送到相关责任人员的手机,预警结果可有效指导相关部门开展应急响应工作。

关键词：地质灾害滑坡监测预警普适型设备三峡库区卡门子湾滑坡