检索结果-南通市图书馆

Study on Influences of Fringing Reef on Harbor Oscillations Triggered by N-Waves

China Ocean Engineering 2021年第3期35卷 398-409页

作者： GAO Jun-liang CHEN Hong-zhou MA Xiao-zhou DONG Guo-hai ZANG Jun LIU Qian School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China School of Civil Engineering and Architecture Northeast Electric Power UniversityJilin 132012China The State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China Centre for Infrastructure Geotechnical and Water Engineering(IGWE)Department of Architecture and Civil EngineeringUniversity of BathBA27AYUK

Influences of topographic variations of the offshore fringing reef on the harbor oscillations excited by incident Nwaves with different amplitudes and waveform types are studied for the first *** the propagation of the Nwaves over the reef and the subsequently-induced harbor oscillations are simulated by a Boussinesq-type numerical model,*** present study concentrates on revealing the influences of the plane reef-face slope,the reef-face profile shape and the lagoon width on the maximum runup,the wave energy distribution and the total wave energy within the *** shows that both the wave energy distribution uniformity and the total wave energy gradually increase with decreasing reef-face *** profile shape of the reef face suffering leading-elevation Nwaves(LEN waves)has a negligible impact on the wave energy distribution uniformity,while for leading-depression N-waves(LDN waves),the latter gradually decreases with the mean water depth over the reef *** total wave energy always first increases and then decreases with the mean water depth over the reef *** general,the total wave energy first sharply decreases and then slightly increases with the lagoon width,regardless of the reef-face width and the incident waveform *** maximum runup subjected to the LEN waves decreases monotonously with the lagoon ***,for the LDN waves,its changing trend with the lagoon width relies on the incident wave amplitude.

关键词： harbor oscillations fringing-reef topography N-waves numerical simulations FUNWAVE-TVD

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Reuse of Industrial Heritage Based on “Leisure-Holiday Tourism Complex”

引用

Journal of Landscape Research 2017年第3期9卷 91-93,100页

作者： zhou Bo LIN Zhu YANG Haotian LIU ting QU Haiqiang College of City Construction Jiangxi Normal University

Tourism development, as a novel approach in the reuse of industrial heritage, is conducive to the settlement of issues of urban industrial heritage conservation. However, in practical terms, the development of industrial heritage as tourist resources, has encountered problems including monotonous development projects, the lack of tourism facilities, low economic efficiency, poor sustainability of project operation, etc.. This paper, based on the transformation plan of Salt Manufacturing Plant in Qingjiang County of Zhangshu, Jiangxi, proposes that a leisure-holiday tourism complex can be used as the development model of the reuse of industrial heritage at a time when the reuse of industrial heritage is advised to shift from a single mode to a compound mode. Specifically, it is suggested that industrial raw materials are developed into tourism resources to fully excavate relevant history and culture, for the purpose of achieving the coordinated economic and social growth of the reuse of industrial heritage.

关键词： Reuse of industrial heritage Leisure-holiday tourism complex Development model

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

股市有效性综合指数及其应用

引用

统计与信息论坛 2011年第10期26卷 22-27页

作者：周涌咸宁学院数学与统计学院湖北咸宁437100

Eugene Fama所确认的"弱—半强—强"三个层次一直被用以度量股市的有效性程度,但因该理论存在很多缺陷,故采用统计指数对股市有效性进行综合评价,将股市有效性以指数的形式量化表示,该指数可被视为股市在有效性上的"得分"。将股市有效... 详细信息

Eugene Fama所确认的"弱—半强—强"三个层次一直被用以度量股市的有效性程度,但因该理论存在很多缺陷,故采用统计指数对股市有效性进行综合评价,将股市有效性以指数的形式量化表示,该指数可被视为股市在有效性上的"得分"。将股市有效性以统计指数的形式加以测度,可以很好地克服Fama理论中的种种弊端。

关键词：股市有效性综合指数测度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

预应力锚杆柔性支护体系的锚杆抗拔力研究

引用

岩土力学 2012年第2期33卷 415-421页

作者：周勇朱彦鹏兰州理工大学土木工程学院兰州730050 兰州理工大学甘肃省土木工程防灾减灾重点实验室兰州730050

预应力锚杆柔性支护体系是在锚杆支护基础上发展起来的,是用于深基坑支护或提高边坡稳定性的一种新技术,为深入了解其工作性能和作用机制,对其锚杆抗拔力进行了分析和研究,提出了摩擦型灌浆锚杆抗拔力的改进求解方法。研究表明,预应力... 详细信息

预应力锚杆柔性支护体系是在锚杆支护基础上发展起来的,是用于深基坑支护或提高边坡稳定性的一种新技术,为深入了解其工作性能和作用机制,对其锚杆抗拔力进行了分析和研究,提出了摩擦型灌浆锚杆抗拔力的改进求解方法。研究表明,预应力锚杆柔性支护结构体系中锚杆所提供的抗拔力应由锚土作用抗拔力和土体自承作用抗拔力两部分组成;锚杆在支护体系中是作为传力构件传递土体自承作用抗拔力,通过锚土作用提供抗拔力。进一步分别对两部分抗拔力进行理论求解,给出了各自相应的理论计算公式,确定了预应力锚杆支护体系总的抗拔力。工程实例证明了所提出的锚杆抗拔力求解的合理性。依据改进求解方法所求得的锚杆极限抗拔力在数值上较传统方法结果大,改进求解方法后的抗拔力概念更加明确,这从理论上进一步充实了预应力锚杆支护体系的作用机制,为工程实践提供了科学依据。

关键词：土力学锚杆支护体系抗拔力锚土作用土体自承作用

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

健全行政裁量基准的新使命新任务

引用

行政法学研究 2023年第1期 18-22页

作者：周佑勇中共中央党校(国家行政学院)政治和法律教研部北京100091

党的二十大报告对扎实推进依法行政,加强法治政府建设作出重大决策部署,明确提出要“健全行政裁量基准”,为新时代进一步规范行政裁量权,全面推进行政裁量基准的法治化建设指明了前进方向、提出了新的使命任务。行政裁量基准,是近年来... 详细信息

党的二十大报告对扎实推进依法行政,加强法治政府建设作出重大决策部署,明确提出要“健全行政裁量基准”,为新时代进一步规范行政裁量权,全面推进行政裁量基准的法治化建设指明了前进方向、提出了新的使命任务。行政裁量基准,是近年来伴随着裁量权治理转型而在我国执法实践中逐步建立起来的一种新兴制度,旨在通过细化量化行政裁量权的具体行使标准来实现对裁量权的自我规制。

关键词：行政裁量权法治政府建设法治化建设依法行政自我规制执法实践决策部署细化量化

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of octreotide on gallbladder pressure and myoelectric activity of Oddi sphincter in rabbits

引用

World Journal of Gastroenterology 1998年第3期4卷 58-61页

作者： zhou Jian Hua, LIU Chuan yong, ZHANG Ru Hua, WANG Han Ru and LIU Ke Jing

AIM To observe the effect of octreotide (OT) and somatostatin (SS) on gallbladder pressure and myoelectric activity of SO in rabbits. METHODS Male rabbits fasted for 15h - 18h and anesthetized with urethane. The mean gallbladder pressure (GP) and myoelectric activity of SO were simultaneously measured with a frog bladder connected to a transducer and a pair of copper electrodes. RESULTS After injection of OT (10μg/kg, iv), the GP decreased in 2min and reached the lowest value in about 60min ( P 0 05). Before and after injection of OT, there were no significant differences in increases of myoelectric activity of SO and GP caused by electric stimulation of dorsal motor nucleus of vagus ( P >0 05). CONCLUSION OT and SS decreased GP and myoelectric activity of SO, demonstrating that effects of OT were similar to those of SS. Intravenous injection of OT did not affect the increase of myoelectric activity of SO and GP caused by CCK 8 or electric stimulation of dorsal motor nucleus of vagus.

关键词： octreotide/pharmacology gallbladder/drug effects Oddi sphincter/drug effects electrophysiology rabbits somatostatin electric stimulation

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

Tensor-Product Representation of Laplace-Runge-Lenz Vector for Two-Body Kepler Systems

引用

Wuhan University Journal of Natural Sciences 2017年第1期22卷 51-56页

作者： zhou Guoquan School of Physics and Technology Wuhan University Wuhan430072 Hubei China

A unified tensor-product representation of LaplaceRunge-Lenz（LRL） vector about inversely-quadric and centric-force systems is *** a two-body Kepler system under gravitation or Coulomb force,the modified and unified tensor-product representation of LRL vector is also deduced by using an effective single-body *** properties of the vector are numerated and *** of this vector is demonstrated in the tensor-product *** energy formula for a bound-state elliptic orbit is simply derived via a novel *** a two-body system,the R-test rules for every kinds of Kepler＇s motion are discussed in detail.

关键词： Laplace-Runge-Lenz vector centric force Keplermovement gravitation Coulombian force orbit criterion two-body system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欧盟司法与内务合作的政府间主义探析

引用

武汉大学学报（哲学社会科学版） 2007年第3期60卷 440-447页

作者：周勇武汉大学政治与公共管理学院湖北武汉430072

欧盟司法与内务合作的发展过程主要体现为各成员国的政府间行为,其决策机制突出体现了政府间主义性质。成员国间的共同国家利益是欧盟司法与内务合作的动力和限度。尽管欧盟司法与内务合作在范围和深度上有了很大的发展,甚至在决策机制... 详细信息

欧盟司法与内务合作的发展过程主要体现为各成员国的政府间行为,其决策机制突出体现了政府间主义性质。成员国间的共同国家利益是欧盟司法与内务合作的动力和限度。尽管欧盟司法与内务合作在范围和深度上有了很大的发展,甚至在决策机制方面引入了超国家主义因素,从而在该领域形成了以政府间模式为主、超国家模式为辅的混合决策体制,但由于涉及各成员国敏感的国家主权和国家利益问题,在相当长的时期内,欧盟司法与内务合作仍将继续采取政府间合作模式,不会突破目前政府间性质的合作框架。

关键词：司法与内务合作政府间主义国家利益高级政治

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ultralight and superelastic MXene/reduced graphene oxide aerogels for electromagnetic interference shielding

引用

Nano Research 2025年第1期18卷 1-9页

作者： Xinfeng zhou Yang Dai Guoyao Yue Yiman Zhang Lulu Li Zhong-Zhen Yu Peng Min Hao-Bin Zhang 21 State Key Laboratory of Organic-Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory of Advanced Functional Polymer Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Present address:BOE Technology Innovation Center BOE Technology Group Co.Ltd.Beijing 100176China Xi’an Modern Chemistry Research Institute Xi’an 710065China

Lightweight aerogels feature multifunctionality and a high porosity,yet accompanied with poor structure recovery under large strain *** this work,we develop an air bubble-ice crystal dual template and annealing strategy to integrate low density and high resilience for the conductive transition metal carbides/nitrides(MXene)composite *** air bubbles and ice crystals synergistically exclude the nanosheets to the gas-liquid interfaces,thereby constructing unique Y-shaped junctions and robust *** annealing process greatly enhances the interlayer *** external load,the Yshaped structures prevent the stress concentration at the junctions by transferring the forces to the skeleton for maintaining structural *** addition,the wrinkled and thick cell walls,together with the enhanced interlayer interactions,endow the aerogel with exceptional structural stability and *** a result,the MXene/reduced graphene oxide(RGO)composite aerogels exhibit superelasticity with reversible compressive strains of up to 95%.In addition,the electron bridging effect of the RGO sheets affords the aerogel to deliver excellent electromagnetic interference shielding performance,as high as 46.3 dB at 2.5 ***,the remarkable reshapeability of the aerogels allows for precise regulation of structure and performance(33.5-75.1 dB)by a simple wetting compression *** summary,this work offers helpful inspirations for developing lightweight and superelasticity aerogels for extensive applications.

关键词： lightweight superelasticity MXene aerogel electromagnetic interference shielding reshapeability

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

Study of the reaction mechanism for preparing powdered activated coke with SO_(2)adsorption capability via one-step rapid activation method under flue gas atmosphere

引用

Chinese Journal of Chemical Engineering 2024年第1期65卷 158-168页

作者： Binxuan zhou Jingcai Chang Jun Li Jinglan Hong Tao Wang Liqiang Zhang Ping zhou Chunyuan Ma School of Environmental Science and Engineering Shandong UniversityQingdao 266237China School of Energy and Power Engineering Shandong UniversityJinan 250061China Weihai Research Institute of Industrial Technology of Shandong University Weihai 264209China

In this study,the impact of different reaction times on the preparation of powdered activated carbon(PAC)using a one-step rapid activation method under flue gas atmosphere is investigated,and the underlying reaction mechanism is *** indicate that the reaction process of this method can be divided into three stages:stage I is the rapid release of volatiles and the rapid consumption of O_(2),primarily occurring within a reaction time range of 0-0.5 s;stage II is mainly the continuous release and diffusion of volatiles,which is the carbonization and activation coupling reaction stage,and the carbonization process is the main in this *** stage mainly occurs at the reaction time range of 0.5 -2.0 s when SL-coal is used as material,and that is 0.5-3.0 s when JJ-coal is used as material;stage III is mainly the activation stage,during which activated components diffuse to both the surface and interior of *** stage mainly involves the reaction stage of CO_(2)and H2O(g)activation,and it mainly occurs at the reaction time range of 2.0-4.0 s when SL-coal is used as material,and that is 3.0-4.0 s when JJ-coal is used as ***,the main function of the first two stages is to provide more diffusion channels and contact surfaces/activation sites for the diffusion and activation of the activated components in the third *** the reaction mechanism would serve as a crucial reference and foundation for designing the structure,size of the reactor,and optimal positioning of the activator nozzle in PAC preparation.

关键词： Reaction mechanism Powdered activated coke preparation SO_(2)adsorption One-step rapid activation Flue gas atmosphere

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：