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disaster monitoring 1

emergency search and rescue 1

fail-safe structure 1

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offshore aquaculture 1

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Boundedness of Marcinkiewicz integralwith rough kernel onTriebel-Lizorkin spaces

Chun-jie ZHANG,Fang-fang REN,Yu-huai ZHANG,Gui-lian GAO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 654-657 doi: 10.1631/FITEE.1500082

Abstract: that the Marcinkiewicz integral, with a bounded radial function in its kernel, is still bounded on the Triebel-Lizorkin

Keywords： Marcinkiewicz integral     Triebel-Lizorkin spaces    

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Multiresolution and multimaterial topology optimization of fail-safe structures under B-spline spaces

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0768-9

Abstract: This study proposes a B-spline-based multiresolution and multimaterial topology optimization (TO) design method for fail-safe structures (FSSs), aiming to achieve efficient and lightweight structural design while ensuring safety and facilitating the postprocessing of topological structures. The approach involves constructing a multimaterial interpolation model based on an ordered solid isotropic material with penalization (ordered-SIMP) that incorporates fail-safe considerations. To reduce the computational burden of finite element analysis, we adopt a much coarser analysis mesh and finer density mesh to discretize the design domain, in which the density field is described by the B-spline function. The B-spline can efficiently and accurately convert optimized FSSs into computer-aided design models. The 2D and 3D numerical examples demonstrate the significantly enhanced computational efficiency of the proposed method compared with the traditional SIMP approach, and the multimaterial TO provides a superior structural design scheme for FSSs. Furthermore, the postprocessing procedures are significantly streamlined.

Keywords： multiresolution     multimaterial     topology optimization     fail-safe structure     B-spline    

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Research on Combined Construction Technology for Cross-Subway Tunnels in Underground Spaces Article

Xiangsheng Chen

Engineering 2018, Volume 4, Issue 1,   Pages 103-111 doi: 10.1016/j.eng.2017.08.001

Abstract: This study presents a combined construction technology that has been developed for use in underground spacestechnology presented in this paper provides a new method of solving key technical problems in underground spaces

Keywords： Operating subway tunnel     Underground space     Construction     Combined technology    

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Development of Countermeasures in Disaster Monitoring and Emergency Search or Rescue in Urban Underground Spaces

Wang Xinsai,Zhou Fengjun,Zheng Lei and He Jing

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 92-99 doi: 10.15302/J-SSCAE-2017.06.014

Abstract: engineering have reached considerably advanced, but ensuing security accidents in urban underground spacespertaining to terrorism, explosions, and nuclear biological or chemical attacks in urban underground spaces

Keywords： infrared imaging     disaster monitoring     emergency search and rescue     countermeasure     urban underground space    

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Study on Strategies for Developing Offshore as the New Spaces for Mariculture in China

Mai Kangsen,Xu Hao,Xue Changhu,Gu Weidong,Zhang Wenbing,Li Zhaojie and Yu Bo

Strategic Study of CAE 2016, Volume 18, Issue 3,   Pages 90-95 doi: 10.15302/J-SSCAE-2016.03.015

Abstract:

Mariculture industry, makes great contribution to national food security, economy and trade balance. To realize sustainable development of mariculture in China in the new period, it is urgent to exploit new space and develop offshore aquaculture strategy. Offshore aquaculture is an integrated system including suitable species, culture techniques, culture equipments, energy supply, sea-land relay logistics, aquatic products processing, and strategies of disaster prevention and reduction. On the basis of a strategic concept of the new space for mariculture in China, the present study puts forward strategic missions on the development of offshore mariculture. The missions include building a suitable species breeding and efficient farming technology system, constructing a new type of marine fisheries production mode with the core of offshore aquaculture platform, building an energy security system, and constructing an intelligent mariculture products logistics network. Based on these strategies, relevant policy suggestions are also suggested.

Keywords： offshore aquaculture     new space     problem analysis     strategic mission     policy suggestion    

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Title Author Date Type Operation

Boundedness of Marcinkiewicz integralwith rough kernel onTriebel-Lizorkin spaces

Chun-jie ZHANG,Fang-fang REN,Yu-huai ZHANG,Gui-lian GAO

Journal Article

Multiresolution and multimaterial topology optimization of fail-safe structures under B-spline spaces

Journal Article

Research on Combined Construction Technology for Cross-Subway Tunnels in Underground Spaces

Xiangsheng Chen

Journal Article

Development of Countermeasures in Disaster Monitoring and Emergency Search or Rescue in Urban Underground Spaces

Wang Xinsai,Zhou Fengjun,Zheng Lei and He Jing

Journal Article

Study on Strategies for Developing Offshore as the New Spaces for Mariculture in China

Mai Kangsen,Xu Hao,Xue Changhu,Gu Weidong,Zhang Wenbing,Li Zhaojie and Yu Bo

Journal Article