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Selectively structural fractionation and economical-functionality conversion of lignocellulosic biomass

Chen Hongzhang,Qiu Weihua and Wang Lan

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 27-36

Abstract:

In this paper，an innovative biomass- refining path called“selective- fractionation and economical-functionality”was proposed，based on the recognition of heterogeneity of biomass，which in the purpose to as far as possible retain the original features of macromolecules，activate and improve the biotransformation performance of components suitable for enzymatic hydrolysis，maximize the value of intermediate products. According to the association of raw material features，conversion processes and products requirement，diversified biomass refining paths have been established to prove the feasibility，reasonability and reliability of“selectivefractionation and economical- functionality”. In conclusion，“selective- fractionation and economical-functionality”of lignocellulosic materials would be the novel way to break through the tight economic and technological predicament of biomass economy.

Keywords： biorefining     heterogeneity of raw material     selective-fractionation and economical-functionality     industrializedtechnologic system    

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Comparative Analysis of the Solid Waste Emissions between the Industrialized and Traditional Residential

Wei Chen,Wen Zeng,Ming-de Tong,Jin Yan

Frontiers of Engineering Management 2015, Volume 2, Issue 2,   Pages 188-192 doi: 10.15302/J-FEM-2015020

Abstract: This paper aims at analyzing the solid waste emission issues between the industrialized and traditionalThe evaluation system of such rubble waste from construction and demolition (C&D waste), including evaluation

Keywords： industrialized housing     steel structure     solid waste emission     C&D waste     comprehensive evaluation method    

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Costs and prices for renewable energy development in industrialized countries and applications to China

Hugo SALAMANCA, Miao CHANG, Xin TIAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 403-411 doi: 10.1007/s11783-011-0350-2

Abstract: Then, the policy choices made in some typical industrialized countries are examined to find answers toFinally, the choices made in China are examined in comparison to industrialized countries so as to determine

Keywords： renewable energy     public policy     costs     prices     renewable portfolio     feed-in tariff    

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Key technologic problems on underwater shield tunnel

Sun Mou,Tan Zhongsheng

Strategic Study of CAE 2009, Volume 11, Issue 7,   Pages 18-23

Abstract:

Combined with some underwater shield tunnels such as Wuhan Changjiang tunnel, the determination of reasonable cover thickness, the shield type and key parameter selection are analyzed. The key technology of stabilizing working face, preventing muddy water eruption, preventing tunnel floating, controlling shield direction, excavating long distance, abutting joint underwater, shield launching and arriving are generalized.

Keywords： underwater tunnel     shield     cover thickness     type selection     key construction technology    

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Opportunities and Challenges for Metal Matrix Composites in the Context of Equipment Upgrading

Wu Gaohui, Kuang Zeyang

Strategic Study of CAE 2020, Volume 22, Issue 2,   Pages 79-90 doi: 10.15302/J-SSCAE-2020.02.012

Abstract:

In this paper, the application progress and development of metal matrix composites (MMCs) are reviewed from the perspective of industrialization strategy. The development process of MMCs in China is briefly summarized. The key technological breakthroughs in the main preparation methods of MMCs, such as in-situ synthesis, stirring casting, powder metallurgy, and pressure infiltration, are introduced. Typical engineering application cases of MMCs that promote equipment upgrading are listed. The development trend of MMCs in the next five to ten years is prospected. In view of the challenges posed to material technology by the development of equipment technology in the field of national defense and national economy, the development opportunities and prospects of MMCs in the civil-military dual-use market are analyzed. Moreover, to overcome the deficiency of industrialization technology and industrial environment, development suggestions are put forward, including consolidating national industrialization platforms and talent cultivation bases, increasing national investment, speeding up the construction of standards and database systems, and developing low-cost and high-quality material preparation technology.

Keywords： metal matrix composites     industrialized application     equipment development     materials preparation    

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System reliability and system resilience

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 615-619 doi: 10.1007/s42524-021-0176-y

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Engineering, Engineering System, Engineering System Theory, and System of Engineering Science

Wang Liancheng

Strategic Study of CAE 2001, Volume 3, Issue 6,   Pages 15-18

Abstract: of basic contents, nature and feature of engineering, this paper introduces concepts of engineering systemand engineering system theory, then discusses objects of study and research methods of engineering systemtheory using thinking of general system theory.Finally, it expounds meta-discipline standing of engineering system theory in system of engineering science

Keywords： engineering     system     system theory     discipline    

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Cyber–Physical Power System (CPPS): A review on measures and optimization methods of system resilience

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 503-518 doi: 10.1007/s42524-021-0163-3

Abstract: The Cyber–Physical Power System (CPPS) is one of the most critical infrastructure systems in a country

Keywords： Cyber–Physical Power System     resilience assessment     resilience optimization     cascading failure modeling    

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Discussion on the System Optimization of the Energy Development Strategy and Plan

Da-di Zhou

Frontiers of Engineering Management 2014, Volume 1, Issue 2,   Pages 147-152 doi: 10.15302/J-FEM-2014022

Abstract: Due to the complexity of the energy system, the interactive relationship with economic and social development, and the enormous investment involved, the optimization of the energy system is of great significanceefforts to develop targets and specific approaches for the rational and optimal development of an energy system

Keywords： energy development strategy     planning system     system optimization    

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Distributed monitoring and diagnosis system for hydraulic system of construction machinery

Xiaohu CHEN, Wenfeng WU, Hangong WANG, Yongtao ZHOU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 106-110 doi: 10.1007/s11465-009-0089-7

Abstract: This paper mainly presents a distributed monitoring and diagnosis system for the hydraulic system ofThe hardware of the distributed condition monitoring and fault diagnosis system is designed.experiments and applications indicate that the distributed condition monitoring and fault diagnosis systemrealize its function of real-time online condition monitoring and fault diagnosis for the hydraulic system

Keywords： construction machinery     hydraulic system     distributed condition monitoring     controller area net (CAN) field    

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Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 399-411 doi: 10.1007/s11465-010-0116-8

Abstract: Conceptual design is the most critical and creative phase of design. Recently, increasing attention has been directed to supporting conceptual-level computer aided creative design and its theories and methodologies. Specifically, for conceptual design of mechanical products, this paper presents a novel function solving model for mechanical product design and highlights the importance of systematic synthesis to achieve creative design. Then it builds a framework as a function-effect-process-action- mechanisms (FEPAM) mapping process, which enables creative design on the basis of conceiving different action schemes. After that, several key points are elaborated including 1) representing and decomposition methods of functions and motion behaviors; 2) action scheme representing method based on network plan techniques; and 3) variation and creation methods based on action scheme transformations.

Keywords： mechanism system creative design     process model     function solving model     process action procedure     mechanismsknowledge base     principle of mechanism system composition    

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Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 184-192 doi: 10.1007/s11708-012-0185-y

Abstract: from the grid during disturbances with advanced power electronics controllers and reduce equivalent systemThus, it is important that wind turbines also contribute to system frequency control.paper examines the dynamic contribution of doubly fed induction generator (DFIG)-based wind turbine in systemThe simulations carried out in a two-area interconnected power system demonstrate the contribution of

Keywords： doubly fed induction generator (DFIG)     load frequency control     inertial control     wind energy conversion system    

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Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 245-254 doi: 10.1007/s11708-012-0218-6

Abstract: presents the analysis of load frequency control (LFC) of a deregulated two-area hydro-thermal power systemThe conventional two-area power system is modified to study the effects of the bilateral contracts ofcompanies on the system dynamics.The overall inertia of the system reduces, as the wind unit does not provide inertia and isolates fromThe DFIGs integrated provide inertial support to the system through modified inertial control scheme,

Keywords： frequency regulation     fuzzy controller     de-regulated power system     doubly fed induction generator (DFIG)    

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Qian Xuesen and System Engineering

Miao Dongsheng

Strategic Study of CAE 2002, Volume 4, Issue 3,   Pages 16-20

Abstract:

This paper have looked back the formation of Qian Xuesen's system engineering idea, given a briefaccount of the main points of the system engineering theory with Chinese characteristics, and analysedhow Qian went beyond system engineering.

Keywords： Qian Xuesen     system idea     system engineering     system science    

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China’s hydropower energy system toward carbon neutrality

Frontiers of Engineering Management   Pages 677-682 doi: 10.1007/s42524-022-0196-2

Abstract: stochasticity, high volatility, and unadjustable features, have great impacts on the safe operation of power systemThus, an advanced hydropower energy system serving multiple energies is required to respond to volatilityFuture research and application can be considered from three aspects: 1) system expansion (e.g., the

Keywords： hydropower system     carbon neutrality     artificial intelligence    

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Title Author Date Type Operation

Selectively structural fractionation and economical-functionality conversion of lignocellulosic biomass

Chen Hongzhang,Qiu Weihua and Wang Lan

Journal Article

Comparative Analysis of the Solid Waste Emissions between the Industrialized and Traditional Residential

Wei Chen,Wen Zeng,Ming-de Tong,Jin Yan

Journal Article

Costs and prices for renewable energy development in industrialized countries and applications to China

Hugo SALAMANCA, Miao CHANG, Xin TIAN

Journal Article

Key technologic problems on underwater shield tunnel

Sun Mou,Tan Zhongsheng

Journal Article

Opportunities and Challenges for Metal Matrix Composites in the Context of Equipment Upgrading

Wu Gaohui, Kuang Zeyang

Journal Article

System reliability and system resilience

Journal Article

Engineering, Engineering System, Engineering System Theory, and System of Engineering Science

Wang Liancheng

Journal Article

Cyber–Physical Power System (CPPS): A review on measures and optimization methods of system resilience

Journal Article

Discussion on the System Optimization of the Energy Development Strategy and Plan

Da-di Zhou

Journal Article

Distributed monitoring and diagnosis system for hydraulic system of construction machinery

Xiaohu CHEN, Wenfeng WU, Hangong WANG, Yongtao ZHOU,

Journal Article

Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Journal Article

Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Qian Xuesen and System Engineering

Miao Dongsheng

Journal Article

China’s hydropower energy system toward carbon neutrality

Journal Article