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Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 171-179 doi: 10.1007/s11709-011-0103-0

Abstract: This paper presents an uncoupled state space solution to three-dimensional consolidation of layered poroelasticStarting from the basic equations of poroelastic medium, and introducing intermediate variables, the state spacewith the continuity conditions between adjacent layers and boundary conditions, the uncoupled state spacesolution of a layered poroelastic medium is obtained by using the transfer matrix method.

Keywords： uncoupled state space solution     layered poroelastic medium     three-dimensional consolidation     anisotropic    

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Using machine learning models to explore the solution space of large nonlinear systems underlying flowsheet

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 183-197 doi: 10.1007/s11705-021-2073-7

Abstract: Flowsheet simulations of chemical processes on an industrial scale require the solution of large systemsconstraints from technical, economic, environmental, and safety considerations may further limit the feasible solutionspace beyond the convergence requirement.To support the exploration of the design variable space for such scenarios, an adaptive sampling technique

Keywords： machine learning     flowsheet simulations     constraints     exploration    

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Space contracting and decomposing algorithm based on Backbone

Gao Yongchao,Qian Heng,Liu Limei,Wang Yunzheng,Wang Ding

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 74-77

Abstract:

The scale and complexity of search space are important factors to decideThe information of solution space may lead searching to optimal solutions.Based on the known space structure of job shop scheduling problem, a space contracting and decomposingStatistical analysis is not necessary before or through solving in this algorithm, and solution informationis used to estimate the landscape of search space, which enhances the speed and solution quality.

Keywords： job shop scheduling problem     solution space     Backbone    

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A review of optimization modeling and solution methods in renewable energy systems

Frontiers of Engineering Management   Pages 640-671 doi: 10.1007/s42524-023-0271-3

Abstract: Web of Science database, this study reviews the decision-making optimization problems, models, and solution

Keywords： renewable energy system     bibliometrics     mathematical programming     optimization models     solution methods    

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Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 28-36 doi: 10.1007/s11465-008-0007-4

Abstract: Based on the theory of heat transfer, this paper supplies a numerical solution to the non-homogeneousBy testing the thermal dynamic characteristics of the ball-screw, the numerical solution is validated

Keywords： numerical solution     temperature corresponding     temperature distribution     end-most     ball-screw    

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Analytical dynamic solution of a flexible cable-suspended manipulator

Mahdi BAMDAD

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 350-359 doi: 10.1007/s11465-013-0271-9

Abstract: In this paper, an analytic solution is provided to solve cable vibration.Also, a closed form solution can be adopted to improve the dynamic response to flexibility.

Keywords： parallel robot     flexible cable     suspended robot     dynamic    

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Solution properties and self-association of multi-blocks like copolymer P(AM/AA) prepared by template

ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 68-71 doi: 10.1007/s11705-007-0014-8

Abstract: copolymers (TP) of acrylamide (AM) and acrylic acid (AA) prepared by template copolymerization in aqueous solutionDecreasing the value of pH or adding Ca ion to the copolymer solution will make phase separation occurWith the increase of the pH value of copolymer solution, the changes of the solution viscosity was similar

Keywords： aqueous solution     homopolyacrylic     copolymer solution     significant structure     presence    

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The “Tiangong” Chinese Space Station project

Yang HONG

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 278-283 doi: 10.15302/J-FEM-2018202

Keywords： manned space station     space station project     basic design    

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Yue’s solution of classical elasticity in

Zhong-qi Quentin YUE

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 215-249 doi: 10.1007/s11709-015-0298-6

Abstract: Findings of this solution formulation are further used in the companion paper for mathematical verificationsolutions have been named by other researchers as Yue’s approach, Yue’s treatment, Yue’s method and Yue’s solution

Keywords： elasticity     solution     layered solid     graded material    

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 224-239 doi: 10.1007/s11709-012-0166-6

Abstract: Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structuresFor the premodern space structures widely used since the mid-twentieth century (such as thin shells,space trusses, lattice shells and ordinary cable structures), new space structures have been developedstructures, including composite space trusses, open-web grid structures, polyhedron space frame structuresstructures, modern flexible space structures and modern rigid-flexible combined space structures.

Keywords： modern long-span space structures     rigid space structures     flexible space structures     rigid-flexible combinedspace structures     application and development    

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Coordinated Development of Space Science, Space Technology, and Space Application in China

Zhou Jianping, Wu Ji

Strategic Study of CAE 2023, Volume 25, Issue 2,   Pages 59-66 doi: 10.15302/J-SSCAE-2023.02.007

Abstract: historical reasons and investment restrictions, China’s aerospace industry initially focused on spacetechnology and application, with insufficient emphasis on space science; therefore, space science The development of space technology should be deeply integrated into space science and applicationThis study explores the implications of space science, space technology, and space application andworldwide and reviews the development situation of space-related fields in China.

Keywords： aerospace industry     space science     space technology     space application     coordinated development     sharingof space data    

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Exploration and research of space physics and space weather

Wang Chi

Strategic Study of CAE 2008, Volume 10, Issue 6,   Pages 41-45

Abstract:

Space physics is a fast-growing cross-discipline science with the advanceSpace environment is becoming more and more important as the fourth living environment for human beingStarting from the early 1990s, space weather is born by applying the fundamentals of space physics toon our high-tech systems on the earth and in space.physics and space weather exploration and study, and introduces the suggested space physics and space

Keywords： space physics     space weather     space physics exploration     strategic plan    

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Research Status and Future Development of Deep Space Security

Wu Ke, Zhang Zhe, Yang Wenfei, He Jianfeng, Zhang Tianzhu, Jian Kangkang, Wu Weiren

Strategic Study of CAE 2022, Volume 24, Issue 4,   Pages 240-248 doi: 10.15302/J-SSCAE-2022.04.023

Abstract: of four key deep space security issues: space radiation threat, planetary protection, space heritage, deep-space activities, and deep-space environmental threats.Deep-space security focuses on the four key issues, namely space radiation, planetary protection, spacespan>): (1) Deep-space resources include deep-space assets such as deep-space probes, Earth–moonthreat to the space activities of astronauts and the safe operation of space equipment in deep-space

Keywords： deep space security     space radiation threat     planetary protection     space heritage protection     space legislation    

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Simplified analytical solution for free vibration characteristics of Hardfill dam

XIAO Wei, HE Yunlong, ZHANG Yanfeng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 219-225 doi: 10.1007/s11709-008-0037-3

Abstract: Formulas for computing natural frequencies and modes of Hardfill dams are derived based on one-dimensional shear wedge theory, in which the influences of the upstream concrete face and hydrodynamic pressure of water on the dams’ natural frequencies and modes are discussed. Furthermore, the seismic responses of Hardfill dams are calculated using response spectrum method. An example is analyzed to compare the differences of natural frequencies and modes between shear wedge method and FEM. Then the applicability and accuracy of shear wedge method to analyze free vibration characteristics of Hardfill dams are proven.

Keywords： upstream concrete     hydrodynamic pressure     vibration     one-dimensional     applicability    

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Unified solution of limit loads of thick wall cylinder subject to external pressure considering strain

CHEN Changfu, XIAO Shujun, YANG Yu

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 329-333 doi: 10.1007/s11709-007-0043-x

Abstract: Based on the unified strength theory [1], a unified strength criterion for strain softening materials, such as concrete or rock, was derived, and the elastic and plastic limit loads of a thick-walled cylinder made of these materials subject to external pressure were also given. In addition, the influence of some factors on the limit loads of such cylinders as the ratio of the external radius to internal radius,/, the coefficient , which reflects the effect of medium principal stress and the normal stress of the relevant surface on the material destroy degree, the ratio of tensile strength to compressed strength of the material, , and the damage variable
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Title Author Date Type Operation

Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Journal Article

Using machine learning models to explore the solution space of large nonlinear systems underlying flowsheet

Journal Article

Space contracting and decomposing algorithm based on Backbone

Gao Yongchao,Qian Heng,Liu Limei,Wang Yunzheng,Wang Ding

Journal Article

A review of optimization modeling and solution methods in renewable energy systems

Journal Article

Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Journal Article

Analytical dynamic solution of a flexible cable-suspended manipulator

Mahdi BAMDAD

Journal Article

Solution properties and self-association of multi-blocks like copolymer P(AM/AA) prepared by template

ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian

Journal Article

The “Tiangong” Chinese Space Station project

Yang HONG

Journal Article

Yue’s solution of classical elasticity in

Zhong-qi Quentin YUE

Journal Article

Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Journal Article

Coordinated Development of Space Science, Space Technology, and Space Application in China

Zhou Jianping, Wu Ji

Journal Article

Exploration and research of space physics and space weather

Wang Chi

Journal Article

Research Status and Future Development of Deep Space Security

Wu Ke, Zhang Zhe, Yang Wenfei, He Jianfeng, Zhang Tianzhu, Jian Kangkang, Wu Weiren

Journal Article

Simplified analytical solution for free vibration characteristics of Hardfill dam

XIAO Wei, HE Yunlong, ZHANG Yanfeng

Journal Article

Unified solution of limit loads of thick wall cylinder subject to external pressure considering strain

CHEN Changfu, XIAO Shujun, YANG Yu

Journal Article