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An open cellular caisson breakwater

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Acta Oceanologica Sinica 1996年第1期15卷 101-109页

作者： li yanbao and Zhang Xiaoming Tianjin University Tianjin 300072 China

An open cellular caisson breakwater is a new type comoposite breakwater whose upper structure is an open chamfered caissons without bottom. It has the advantages of rational and compact configuration, good stability and low stress on its foundation *** is especially suitable for soft ground. The structural and hydraulic characteristics and the stability test results of this new type breakwater are presented in this paper.

关键词： Open cellular caisson breakwater stability wave force new type breakwater

The Lushan M_S7.0 earthquake and activity of the southern segment of the Longmenshan fault zone

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Chinese Science Bulletin 2013年第20期58卷 3475-3482页

作者： CHEN liChun RAN YongKang WANG Hu li yanbao MA XinQuan Institute of Geology China Earthquake Administration

Following the Lushan MS7.0 earthquake on 20 April 2013,a topic of much concern is whether events of MS7 or greater could occur again on the southern segment of the Longmenshan fault *** providing evidence to answer this question,this work analyzes the tectonic relationship between the Lushan event and the 2008 Wenchuan earthquake and the rupture history of the southern segment of the Longmenshan fault zone,through field investigations of active tectonics and paleoearthquake research,and our preliminary conclusions are as *** activity of the southern segment of the Longmenshan fault zone is much different to that of its central section,and the late Quaternary activity has propagated forward to the basin in the *** seismogenic structure of the 2008 Wenchuan earthquake is the central-fore-range fault system,whereas that of the 2013 Lushan event is attributed to the fore-range-range-front fault system,rather than the central *** southern segment of the Longmenshan fault zone becomes wider towards the south with an increasing number of secondary faults,of which the individual faults exhibit much weaker surface ***,this section is not as capable of generating a major earthquake as is the central *** is most likely that the 2013 earthquake fills the seismic gap around Lushan on the southern segment of the Longmenshan fault zone.

关键词：龙门山断裂带古地震庐山晚第四纪活动故障系统构造关系活动构造东部盆地

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Seismogenic structure of the 2016 Ms6.4 Menyuan earthquake and its effect on the Tianzhu seismic gap

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Geodesy and Geodynamics 2016年第4期7卷 230-236页

作者： yanbao li Weijun Gan Yuebing Wang Weitao Chen Shiming liang Keliang Zhang Yongqi Zhang State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China National Earthquake Infrastructure Service China Earthquake AdministrationBeijing 100036China Earthquake Administration of Shanxi Province Xi'an 710068China

On January 21, 2016, a strong earthquake with a magnitude of Ms6.4 occurred at Menyuan, Qinghai Province of China. In almost the same region, there was another strong earthquake happened in 1986, with similar magnitude and focal mechanism. Based on comprehensive analysis of regional active faults, focal mechanism solutions, precise locations of aftershocks, as well as GPS crustal deformation, we inferred that the Lenglongiing active fault dips NE rather than SW as suggested by previous studies. Considering the facts that the 2016 and i986 Ms6.4 Menyuan earthquakes are closely located with similar focal mechanisms, both of the quakes are on the north side of the Lenglongling Fault and adjacent to the fault, and the fault is dipping NE direction, we suggest that the fault should be the seismogenic structure of the two events. The Lenglongling Fault, as the western segment of the well-known Tianzhu seismic gap in the Qilian-Haiyuan active fault system, is in a relatively active state with frequent earthquakes in recent years, implying a high level of strain accumulation and a high potential of major event. It is also possible that the Lengiongiing Fault and its adjacent fault, the Jinqianghe Fault in the Tianzhu seismic gap, are rupturing simultaneously in the future.

关键词： 2016 Ms6.4 Menyuan earthquake Seismogenic structure Tianzhu seismic gap Qilian-Haiyuan fault system

Nonlinear effect on inertia component of wave forces on a cylinder

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Acta Oceanologica Sinica 1995年第3期14卷 429-437页

作者： li yanbao and Song Reng(Department of Hydraulic Engineering, Tianjin University, Tianjin 300072, China)

A series of experiments on wave forces on a cylinder have been carried out when inertia component isdominant for a small she cylinder. The influence of nonlinear effect on the inertia component of wave forces on a cylinder is analyzed. The applicable range of nonlinear wave theories, such as Stokes and cnoidal wave theories, in calculating wave forces on a cylinder is discussed. A correction method is suggested for linear wave theory in calculated waveforces on a cylinder under the nonlinear condition.

关键词： Wave forces on cylinder inertia component Stokes wave cnoidal wave

Wave Uplift Forces on the Bottom of a Circular Cylinder

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China Ocean Engineering 1996年第2期11卷 169-180页

作者： li yanbao and Song Reng Associate Professor, Dept. of Hydralulic Eng., Tianjin University, Tainjin 300072 . Professor, Dept. of Hydralulic Eng., Tianjin University, Tainjin 300072 Dept. of Hydralulic Eng. Tianjin University Tainjin 300072

The analysis of the data of model tests of two large deep wharves and monographic experimental studies show that two aspects are to be improved so as to predict the wave uplift forces on the bottom of a circular cylinder. The first aspect is the uplift pressure distribution on the bottom, and the second is the correct determination of the phase for maximum horizontal wave forces. The second problem has been solved. Synthesizing the results of theoretical analysis and experiments, we suggest a diagram for the determination of the phase when the maximum horizontal wave force appears. On the basis-ef the diagram the simultaneous wave uplift forces can be obtained for the structural stability analysis.

关键词： diffraction theory stability of circular cylinders wave uplift forces

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创新型研究型大学的内涵及实践

河北师范大学学报（教育科学版） 2022年第5期24卷 1-10页

作者：李延保中山大学广东广州510275

在中国建设世界一流大学是一个动态的、不断发展推进的历史进程,也是中国决心建设世界高等教育强国的不懈追求。中国现代意义大学发展较晚,且长期以来,我国大学基本上是教学型大学,从20世纪80年代才开始向近现代大学转型,“211工程”开... 详细信息

在中国建设世界一流大学是一个动态的、不断发展推进的历史进程,也是中国决心建设世界高等教育强国的不懈追求。中国现代意义大学发展较晚,且长期以来,我国大学基本上是教学型大学,从20世纪80年代才开始向近现代大学转型,“211工程”开启了中国“研究型大学”的建设。近些年来,结合国家“双一流”大学建设,一批学校把建设世界一流大学作为学校发展的战略目标。尤其是近二十年来,中国高校呈现群体发力现象,有两个突出的特点:一是制定发展规划和推进校内综合改革双轮驱动成为学校快速发展的内在动力;二是政府主导的各种评估、评审、评级等强制性举措是中国高校快速发展的外部推力,客观上也促使学校建设的核心内涵不断充实,办学水平不断提升。但目前依然存在两个问题:一是对人才培养和本科教育教学改革的成效缺乏基于大数据跟踪分析的绩效评价;二是中国高校虽有“211”“985”及“双一流”之分,但大学发展的同质化现象仍未解决,许多学校尚未找到体现大学学术水平和人才培养特质的个性化发展之路。建设高水平研究型大学必须走创新型大学发展之路。创新发展没有固定模式,创新型大学不是“型号”,不是“标签”。创新发展是建设高水平研究型大学乃至世界一流大学的必然要求,创新发展的关键是要思想解放、理念创新、敢于实践。

关键词：创新型研究型大学内涵历史探索中国特色世界一流大学

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关于推进“国家创新人才工程”的设想

高等工程教育研究 2005年第5期53卷 5-9页

作者：李延保中山大学

虽然我国高等教育取得了长足发展,但教学改革的核心问题并未突破。建设国家创新体系、促进科技创新,成为世界各国共同关心的重要课题,而我国高等教育的薄弱环节恰恰就是学生的创新意识不强,创造力的潜能发掘不够。通过分析美国几项重大... 详细信息

虽然我国高等教育取得了长足发展,但教学改革的核心问题并未突破。建设国家创新体系、促进科技创新,成为世界各国共同关心的重要课题,而我国高等教育的薄弱环节恰恰就是学生的创新意识不强,创造力的潜能发掘不够。通过分析美国几项重大教育工程(体系),文章得出一些启示,并提出构建“国家创新人才工程”的若干设想。

关键词：国家创新人才工程高等教育国家创新体系人才工程核心问题教学改革科技创新重要课题创新意识教育工程

增强自信坚持开放加大高校教育改革的“国际化”进程——从学习陈嘉庚教育思想谈起

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中国高教研究 2007年第10期 3-6页

作者：李延保中山大学党委书记广东广州510275

学习陈嘉庚精神和陈嘉庚教育思想,联系当今的教育,我们要继续坚定地坚持开放的原则,认真向世界先进教育学习,推进教育的"国际化"进程,要在大学多元文化的交融中营造富有生机和创造活力的中国大学文化精神;要对中国现实的高等教育和中国... 详细信息

学习陈嘉庚精神和陈嘉庚教育思想,联系当今的教育,我们要继续坚定地坚持开放的原则,认真向世界先进教育学习,推进教育的"国际化"进程,要在大学多元文化的交融中营造富有生机和创造活力的中国大学文化精神;要对中国现实的高等教育和中国文化传统有充分的自信。

关键词：陈家庚教育思想高校教育改革国际化进程

民办高校如何加强党的领导和建设——兼谈民办高校治理和大学文化建设

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河北师范大学学报（教育科学版） 2024年第2期26卷 1-11页

作者：李延保中山大学广东广州510275

党的领导和党的建设是民办高校优化提升内部治理体系和治理能力的最核心、最关键的问题。不同于公办高校实行党委领导下的校长负责制,民办高校实行的是董事会依据大学章程进行办学和管理、坚持党的领导和依法治校有机统一的制度。民办... 详细信息

党的领导和党的建设是民办高校优化提升内部治理体系和治理能力的最核心、最关键的问题。不同于公办高校实行党委领导下的校长负责制,民办高校实行的是董事会依据大学章程进行办学和管理、坚持党的领导和依法治校有机统一的制度。民办高校党委要行使两大职能:一是发挥政治核心作用,包括加强和改进思想政治教育及立德树人的工作;二是要执行政府对民办高校的督导功能,督促学校依法办学,规范管理,切实维护民办高校的和谐稳定。同时,民办高校在发展过程中,尤其要注重完善内部治理模式,加强大学文化和大学精神建设,找准定位、依法办学、特色强校、文化聚人,走个性化、特色化办学之路,从而为中国教育事业的发展作出杰出贡献。

关键词：民办高校党的领导和建设大学治理模式大学文化