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Postbuckling of Imperfect Stiffened Cylindrical Shells Under Combined External Liquid Pressure and Axial Compression

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China Ocean Engineering 1996年第4期11卷 367-390页

作者： Shen HuishenProfessor, Department of Civil Engineering. Shanghai Jiao Tong University. Shanghai 200030 Department of Civil Engineering Shanghai Jiao Tong University Shanghai 200030

posthuckling analysis is presented for the stilTened cylindrical shell of finite length subjected to combined loading of external liquid pressure and axial compression. The formulations are based on a boundary layer theory of shell buckling, which includes the effects of nonlinear prebuckling deformations, nonlinear large deflections in the postbuckling range and initial geometrical imperfections of the shell. The 'smeared stifl'cner' approach is adopted for the stiffencrs. In the analysis a singular perturbation technique is used (o determine the interactive buckling loads and the postbuckling paths. Numerical examples cover the performance of perfect and imperfect, stringer and ring stiffened cylindrical shells. Typical results arc presented in the dimcnsionless graphical form.

关键词： structural stability ptwtbuckling stiffened cylindrical shell combined loading boundary layer theory of shell buckling singular perturbation technique.

Monitoring of small and medium embankment dams on permafrost in a changing climate

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Research in Cold and Arid Regions 2014年第4期6卷 348-355页

作者： Rudolf V.Zhang Melnikov Permafrost Institute Siberian Branch of the Russian Academy of SciencesYakutsk 677010 Russia

Global climate warming which began in the second half of the twentieth century is continuing. It is associated with increased risks for ecological management, especially in permafrost areas comprising over 65% of Russia. Of special concern are dams constructed on permafrost. They are subject not only to climatic impacts, but also to additional hydrothermal loads from water reservoirs. This paper presents the concept of geocryological monitoring of dams and other water resource projects and substantiates its necessity in view of climatic change. It also presents methods, scope and implementation of geocryological monitoring at medium and small dams, considering the specific nature of Far Northern areas, as well as the complicated geotechnical, hydrogeological and permafrost conditions.

关键词： permafrost water resources project embankment dam climate geotechnical system structural stability

C02 adsorption performance of ZIF-7 and its endurance in flue gas components

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Frontiers of Environmental Science & Engineering 2014年第2期8卷 162-168页

作者： Jiangkun XIE Naiqiang YAN Fei LIU Zan QU Shijian YANG Ping LIU School of Environmental Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

Porous ZIF-7 with the sodalite （SOD） cage structure （ZIF, Zeolitic imidazolate framework） were synthesized by the solvothermal method. Synthesized material was characterized by powder X-ray diffraction （PXRD）, thermal gravity （TG）, scanning electron micro- scopy （SEM） and Na adsorption analysis. ZIF-8 with the SOD structure and a littl larger pore window was synthesized in a similar way and was characterized for comparisons. Thermal stability and structural stability of ZIF-7 were tested through PXRD analysis, and the capability of the material for CO2 capture from simulated flue gas was investigated through physical adsorption method. The results showed that CO： adsorption capacity on ZIF-7 was about 48 mL. gl while the capacity on ZIF-8 was about 18mg.g-1 （at 12C and 0.98 P/Po relative pressure）. Furthermore, the impact of flue gas components on adsorption capacity of ZIF-7 and the selectivity of CO2 against N2 on ZIF-7 was also investigated in this work

关键词： ZIF-7 structural stability CO2 capture ther- mal stability

Continuous Dependence for a Brinkman-Forchheimer Type Model with Temperature-Dependent Solubility

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Chinese Quarterly Journal of Mathematics 2021年第3期36卷 308-319页

作者： SHI Jin-cheng XIAO Sheng-zhong School of Date Science Guangzhou Huashang CollegeGuangzhou 511300China Foundation Department Guangdong AIB UniversityGuangzhou 510507China

The structural stability for the Brinkman-Forchheimer equations with temperature-dependent solubility in a bounded region in R3 was studied.The reaction boundary conditions for the temperature T and the salt concentration were imposed.With the aid of some useful a priori bounds,we were able to demonstrate the continuous dependence result for the Forchheimer coefficient λ.

关键词： structural stability Brinkman-Forchheimer equations Temperature-dependent solubility Continuous dependence Robin boundary

Continuous Dependence for the Linear Differential Equations of Thermo-Diffusion

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Journal of Applied Mathematics and Physics 2020年第7期8卷 1291-1303页

作者： Jincheng Shi Huashang College Guangdong University of Finance & Economics Guangzhou China

In this paper, we establish the structural stability for the linear differential equations of thermo-diffusion in a semi-infinite pipe flow. Using the technology of a second-order differential inequality, we prove the continuous dependence on the density ρ and the coefficient of thermal conductivity K. These results show that small changes for these coefficients can’t cause tremendous changes for the solutions.

关键词： Differential Equations of Thermo-Diffusion structural stability Continuous Dependence

Safety and Reliability of Structures, Infrastructures and EngineeringSystems 1

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水系可充锌电池中H;V;O;·0.143H;O正极的高循环稳定性机制研究（英文）

2009年

作者： DanM.Frangopol MasanobuShinozuka. editorsHitoshiFuruta

ISBN: (纸本)9780415475570

This is a set of books of abstracts and searchable full paper CD-ROM dealing with every aspect of safety and reliability of structures and civil engineering systems. A special focus has been on advanced technologies, analytical and computational methods of risk analysis, probability-based design and regulations, smart systems and materials, life cycle cost analysis, damage assessment, social aspects, urban planning, and commercial applications. Moreover, emerging concepts and novel applications of reliability principles in all types of structural systems and mechanical components are included. Technologies discussed can be applied in civil, marine, mechanical, transportation and aerospace systems. Containing unique knowledge, ideas and insights, this set of books of abstracts and searchable, full paper CD-ROM is must-have literature for researchers and practitioners involved with structural engineering safety.

关键词： structural design structural stability Reliability (Engineering)

来源：畅想之星图书光盘版（南... 评论

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Science China Materials 2021年

作者：王乐涛陈传玺任恒宇秦润之易浩聪丁收香李洋姚路李舜宁赵庆贺潘锋 School of Advanced Materials Peking University Shenzhen Graduate School

水系可充电池中过渡金属氧化物宿主材料的循环稳定性是影响其长时间服役性能的关键.本文通过简单的预嵌入方法,将一定量的质子和水分子预嵌入到V;O;晶格中,重构了晶体结构,获得了高性能水系锌电池中的H;V;O;·0.143H;O（HVO）层状正极材... 详细信息

水系可充电池中过渡金属氧化物宿主材料的循环稳定性是影响其长时间服役性能的关键.本文通过简单的预嵌入方法,将一定量的质子和水分子预嵌入到V;O;晶格中,重构了晶体结构,获得了高性能水系锌电池中的H;V;O;·0.143H;O（HVO）层状正极材料.得益于该结构重构,钒氧化物正极循环过程中的“层状/非晶”结构演化过程被抑制,由此获得极高循环稳定性(在0.5 A g;电流密度下循环500圈几乎无衰减).此外,该研究报道了HVO正极中质子和锌离子协同嵌入的储能机制,为下一代高性能钒基正极材料的设计提供了一种新的理念.

关键词： aqueous battery vanadium oxide phase conversion structural stability

Saddle Connections of Type-Ⅱ Limit Sets

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Saddle Connections of Type-Ⅱ Limit Sets

Reactant Concentration and Carbonization to the Controllable Fabrication of Carbon Aerogels

中国数学力学物理学高新技术交叉研究会第9届学术研讨会

作者： Sheng Pingxing (Department of Mathematics,College of Natural Sciences,Shanghai University Shanghai 200436)

The existence of saddle connections for planar analytic autonomous systems is achieved. Results can be generalized to C differentiable dynamical systems and even to higher dimensional differentiable dynamical systems.Vector field homotopy and vector field homeomorphism are defined to introduce the concepts of asymptotic compound trajectories or cycles.structural stability of saddle connections and the type-Ⅱ limit sets are discussed.

关键词： dynamical systems saddle connections vector field homotopy and homeomorphism asymptotic compound trajectories or cycles structural stability admissibility of configurations

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Reactant Concentration and Carbonization to the Controllable...