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Response to Risk of Near-Earth Asteroid Impact

Wu Weiren, Gong Zizheng, Tang Yuhua, Zhang Pinliang

Strategic Study of CAE 2022, Volume 24, Issue 2,   Pages 140-151 doi: 10.15302/J-SSCAE-2022.02.015

Abstract: In this paper, the hazards and risks of NEA impact on the Earth are described, and the significance ofThe current international research situation and trend regarding NEA impact risk response were analyzed, involving response procedures, monitoring and early warning, impact hazard assessment, and on-orbitThe basic progress and shortcomings of NEA impact risk response in China are summarized.risk response, establish an integrated impact risk response system, develop impact risk response and

Keywords： near-Earth asteroid     impact hazards     impact risk response     monitoring and early warning     on-orbit disposal    

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Microbial biodegradation of plastics: Challenges, opportunities, and a critical perspective

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1596-6

Abstract:

● Health hazards of plastic waste on environment are discussed.

Keywords： Plastic-waste     Polymers     Health-hazards     Biodegradation     Microorganisms     Enzymes    

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Floating forest: A novel breakwater-windbreak structure against wind and wave hazards

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1111-1127 doi: 10.1007/s11709-021-0757-1

Abstract: A novel floating breakwater-windbreak structure (floating forest) has been designed for the protection of vulnerable coastal areas from extreme wind and wave loadings during storm conditions. The modular arch-shaped concrete structure is positioned perpendicularly to the direction of the prevailing wave and wind. The structure below the water surface acts as a porous breakwater with wave scattering capability. An array of tubular columns on the sloping deck of the breakwater act as an artificial forest-type windbreak. A feasibility study involving hydrodynamic and aerodynamic analyses has been performed, focusing on its capability in reducing wave heights and wind speeds in the lee side. The study shows that the proposed 1 km long floating forest is able to shelter a lee area that stretches up to 600 m, with 40%–60% wave energy reduction and 10%–80% peak wind speed reduction.

Keywords： floating structure     breakwater     windbreak     hydrodynamic     CFD    

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The study on general design framework and message encoding ofweather hazards warning information broadcasting

Zhang Di,Li Zechun,Shi Peiliang,Wang Xuechen

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 8-12

Abstract:

This paper presents general design frame for Weather Hazards Warningand provides a digital format of Weather Warning message encoding by conducting research on weather hazardsWith the Broadcasting System of Weather Hazards Warning Information, all weather hazard information can

Keywords： weather hazards     warning information broadcasting system     message encoding     digital audio broadcasting    

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Game theoretic analysis of environmental impact assessment system in China

CHENG Hongguang, PU Xiao, GONG Li, QI Ye

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 448-453 doi: 10.1007/s11783-007-0071-8

Abstract: Environmental impact assessment (EIA) system has been established in China since 1973.

Keywords： public     impact assessment     Environmental impact     general    

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The clinical impact of tricuspid regurgitation in patients with a biatrial orthotopic heart transplant

Frontiers of Medicine 2023, Volume 17, Issue 3,   Pages 527-533 doi: 10.1007/s11684-022-0967-5

Abstract: In this study, we aim to elucidate the clinical impact and long-term course of tricuspid regurgitation

Keywords： orthotopic heart transplant     tricuspid regurgitation     clinical impact     biatrial heart transplantation    

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Dynamical analysis of droplet impact spreading on solid substrate

Zhaomiao LIU, Huamin LIU, Xin LIU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 308-315 doi: 10.1007/s11465-010-0020-2

Abstract: This paper investigates the impact spreading of a droplet on a solid substrate using numerical simulationhowever, the pressures on the substrate are quite different and air entrainment may be found as the impactThe impact speed impacts on the spreading factors in high speed droplet spreading.The spreading factor obviously increases with increasing impact speed; however, splashing will appear

Keywords： droplet     impact spreading     numerical simulation    

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Coal seam roof and floor hydrogeology conditions evaluation of Pingshuo No.1 mine and measures of preventing water bursting

Zhang Zhongwen,Wu Qiang,Fu Enjun,Fan Zhenli

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 94-101

Abstract:

Aiming at water hazards menace of Pingshuo No.1 coal mine roof and floorAt last,it sets down a series of measures of preventing water hazards.

Keywords： three maps method     vulnerability index method     water hazards of coal mine     prevented measures of waterhazards    

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Status and Prospect of Development Characteristics and Monitoring Techniques of Submarine Geological Hazards

Shen Yanjun, Peng Jianbing, Jia Yonggang, Ma Penghui, Fan Wen, Shen Wei, Tian Zhaoyang, Huo Bingyao

Strategic Study of CAE 2023, Volume 25, Issue 3,   Pages 95-108 doi: 10.15302/J-SSCAE-2023.03.009

Abstract: However, due to harsh geological conditions, major submarine geological hazards pose constraints and summarize the monitoring techniques and methods for typical submarine geological hazards.This study provides an overview of the research history of submarine geological hazards and their monitoringIt summarizes the common types and characteristics of submarine geological hazards, and reviewssuggests that it is important to improve the evaluation theory and methods of submarine geological hazards

Keywords： submarine geological hazards     evolution law     formation mechanism     monitoring technique    

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Comparison of droplet distributions from fluidic and impact sprinklers

Xingye ZHU,Shouqi YUAN,Junping LIU,Xingfa LIU

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 1,   Pages 53-59 doi: 10.15302/J-FASE-2015049

Abstract: prototype sprinklers, outside signal sprinkler (OS) and fluidic sprinkler (FS), were compared with impact

Keywords： outside signal sprinkler     fluidic sprinkler     impact sprinkler     sprinkler irrigation     droplet size     droplet    

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Mechanical properties and impact resistance of concrete composites with hybrid steel fibers

Fatih ÖZALP; Halit Dilşad YILMAZ; Burcu AKCAY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 615-623 doi: 10.1007/s11709-022-0828-y

Abstract: In addition to the fracture energy and impact strength, two important indicators of ballistic performance

Keywords： projectile impact     depth of penetration     fracture energy     crater diameter     UHPFRC    

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Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 90-97 doi: 10.1007/s11709-010-0008-3

Abstract: to “dynamic loading” in the form of seismic action on the dam-reservoir-system and alternatively by “impact

Keywords： dam-reservoir     earthquake     impact     cracking     fracture mechanics    

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Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 50-54 doi: 10.1007/s11709-013-0186-x

Abstract: Granular matter possesses impact-absorbing property due to its energy dissipation character.To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) isadopted to simulate the impact of a spherical projectile on to a granular bed.The penetration depth of the projectile and the first impact peak are investigated with different bedthicknesses and impact velocities.

Keywords： granular matter     impact peak     buffer capacity     discrete element method     critical thickness    

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Water film coated composite liquid metal marble and its fluidic impact dynamics phenomenon

Yujie DING,Jing LIU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 29-36 doi: 10.1007/s11708-015-0388-0

Abstract: A composite liquid metal marble made of metal droplet coated with water film was proposed and its impact

Keywords： liquid metal marble     metallic droplet     composite fluid     impact dynamics     multiphase fluid mechanics    

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Dynamic characteristics of a shrouded blade with impact and friction

Xumin GUO, Jin ZENG, Hui MA, Chenguang ZHAO, Lin QU, Bangchun WEN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 209-226 doi: 10.1007/s11465-019-0566-6

Abstract: A simplified computational model of a twisted shrouded blade with impact and friction is established.Impact force is simulated using a linear spring model, and friction force is generated by a tangentialResults show that resonant peaks become inconspicuous and impact plays a dominant role when initial gaps

Keywords： twisted shrouded blade     dynamic analysis     impact     friction     separate–stick–slip motion    

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Title Author Date Type Operation

Response to Risk of Near-Earth Asteroid Impact

Wu Weiren, Gong Zizheng, Tang Yuhua, Zhang Pinliang

Journal Article

Microbial biodegradation of plastics: Challenges, opportunities, and a critical perspective

Journal Article

Floating forest: A novel breakwater-windbreak structure against wind and wave hazards

Journal Article

The study on general design framework and message encoding ofweather hazards warning information broadcasting

Zhang Di,Li Zechun,Shi Peiliang,Wang Xuechen

Journal Article

Game theoretic analysis of environmental impact assessment system in China

CHENG Hongguang, PU Xiao, GONG Li, QI Ye

Journal Article

The clinical impact of tricuspid regurgitation in patients with a biatrial orthotopic heart transplant

Journal Article

Dynamical analysis of droplet impact spreading on solid substrate

Zhaomiao LIU, Huamin LIU, Xin LIU,

Journal Article

Coal seam roof and floor hydrogeology conditions evaluation of Pingshuo No.1 mine and measures of preventing water bursting

Zhang Zhongwen,Wu Qiang,Fu Enjun,Fan Zhenli

Journal Article

Status and Prospect of Development Characteristics and Monitoring Techniques of Submarine Geological Hazards

Shen Yanjun, Peng Jianbing, Jia Yonggang, Ma Penghui, Fan Wen, Shen Wei, Tian Zhaoyang, Huo Bingyao

Journal Article

Comparison of droplet distributions from fluidic and impact sprinklers

Xingye ZHU,Shouqi YUAN,Junping LIU,Xingfa LIU

Journal Article

Mechanical properties and impact resistance of concrete composites with hybrid steel fibers

Fatih ÖZALP; Halit Dilşad YILMAZ; Burcu AKCAY

Journal Article

Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Journal Article

Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Journal Article

Water film coated composite liquid metal marble and its fluidic impact dynamics phenomenon

Yujie DING,Jing LIU

Journal Article

Dynamic characteristics of a shrouded blade with impact and friction

Xumin GUO, Jin ZENG, Hui MA, Chenguang ZHAO, Lin QU, Bangchun WEN

Journal Article