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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 statespace equation usually comprising eight coupled state vectors is uncoupled into two sets of equationsof six and two state vectors in the Laplace-Fourier transform domain.space solution 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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Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 287-291 doi: 10.1007/s11465-011-0230-2

Abstract: ordinary differential equations by employing the Euler-Lagrange equation, and can be easily recast into a statespace form.

Keywords： differential model state space electromechanical switching butterfly effects hysteresis

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Research on the railway construction process quality model based on the state-space method

Lu Shoudong,Zhou Guohua,Chen Haifeng and Zhao Guotang

Strategic Study of CAE 2014, Volume 16, Issue 3, Pages 64-69

Abstract:

In the ISO9000“input- output”process model，the concept of process quality is difficult to get the correct interpretation. From the point of view of the process's“white box” theory，this paper puts forward the scientific meaning of the concept of process quality and the process quality model by taking the basic operating unit of6M1E in the railway construction project for example. The basic operating unit system consists of the technological natural process，operation process and management process；the process quality of the basic operating unit system depends on the interrelation and interaction among those three sub- processes，and also subject to the impact of the external disturbance input factors. Finally，the cast- in- situ prestressed concrete continuous box girder construction process is utilized to elaborate the specific application of this theory in the quality management of the railway construction project.

Keywords： railway construction project “white box”model state transition equation process quality

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State space optimization of finite state machines from the viewpoint of control theory Research Article

Jumei Yue, Yongyi Yan, Zengqiang Chen, He Deng,yjm@mail.nankai.edu.cn,yyyan@mail.nankai.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12, Pages 1551-1684 doi: 10.1631/FITEE.2000608

Abstract: Motivated by the inconvenience or even inability to explain the mathematics of the state of (FSMs)Based on the state transition dynamic equations of FSMs proposed in recent years, several mathematicalFurther, two ways of reducing the state space of FSMs are found.

Keywords：有限状态自动机；有限值系统；逻辑系统；逻辑网络；矩阵半张量积；空间优化

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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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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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Research on structural health monitoring (SHM) system based on RTK GPS system

Wang Renpeng,Yao Lianbi,Meng Xiaolin

Strategic Study of CAE 2011, Volume 13, Issue 3, Pages 63-70

Abstract: coordinate time series were treated as the multi-outputs of the dynamic system and used to build the statespace model and ARMA model and spectrum estimations for the response.The research illustrated that the state-space model and ARMA model were efficient tools for evaluation

Keywords： RTK GPS system time series state-space model ARMA model finite element model

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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, spacesecurity: the state insists on the peaceful exploration and the use of outer space, enhances the abilityspan>): (1) Deep-space resources include deep-space assets such as deep-space probes, Earth–moon

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

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Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive

Frontiers of Chemical Science and Engineering Pages 1623-1631 doi: 10.1007/s11705-022-2202-y

Abstract: Here, we report a simple but efficient strategy for dispersing active components by using a confined spaceSuch a confined space does not exist in the conventional support, calcined SBA-15, which does not containThe Cu and Zn precursors were introduced to the confined space in the AS and were converted to CuO andConfined space in the AS and the strong interactions caused by the abundant hydroxyl groups are responsible

Keywords： bimetallic adsorbents confined space mesoporous silica propene/propane separation

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Corrosion damage assessment and monitoring of large steel space structures

Bo CHEN, You-Lin XU, Weilian QU,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3, Pages 354-369 doi: 10.1007/s11709-010-0088-0

Abstract: Large steel space structures, when exposed to a harsh corrosive environment, are inevitably subjectedThis paper proposes a framework for assessing the corrosion damage of large steel space structures subjectedThe proposed framework is applied to a real large steel space structure built in the southern coastalBased on the results, the conceptual design of the corrosion monitoring system of large steel space structures

Keywords： large steel space structure atmospheric corrosion stress corrosion cracking corrosion damage damage assessment

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Achievements and development ofChina’s space activities

Wang Liheng

Strategic Study of CAE 2008, Volume 10, Issue 12, Pages 10-12

Abstract:

This paper describes the current situation of the international spaceactivities, summarizes the new trends of the new space programs in the world and their characteristics, briefly introduces the brilliant achievements of China's space activities, and gives a full prospectfor the future development of China's space activities.

Keywords： China’s space activities new space programs achievements of China’s space activities

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Advances in tissue state recognition in spinal surgery: a review

Hao Qu, Yu Zhao

Frontiers of Medicine 2021, Volume 15, Issue 4, Pages 575-584 doi: 10.1007/s11684-020-0816-3

Abstract: In the past, tactile sensation was the primary method used by surgeons to understand the state of theTherefore, it has become the focus of spinal surgery research so as to strengthen the objectivity of tissue stateThis article reviews the progress of different tissue state recognition methods in spinal surgery and

Keywords： spinal surgery tissue state recognition image force sensing bioelectrical impedance

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Effectiveness of state incentives for promoting wind energy: A panel data examination

Deepak SANGROYA,Jogendra NAYAK

Frontiers in Energy 2015, Volume 9, Issue 3, Pages 247-258 doi: 10.1007/s11708-015-0364-8

Abstract: The Indian government, as well as different state governments, are adopting policy instruments such asThis paper evaluates the effectiveness of state level incentives for the development of wind energy in

Keywords： India wind energy development state incentives econometric analysis panel data