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The earthquake threat and countermeasures to the safety of nuclear power plants

Zhou Fulin,Tan Ping,Liu Dewen

Strategic Study of CAE 2013, Volume 15, Issue 4,   Pages 36-40

Abstract:

Nuclear energy is a carbon-free,  clean and efficient energy. It is very important in the progress of human civilization and modern development of the world. However,  there are still some problems such as nuclear leak and nuclear waste. In this paper,  the world's nuclear energy utilization and nuclear power plant constructions are reviewed and plans are forecasted. The basic reason of previous nuclear power plant accidents in history is summarized. Taking 2011 Tohuku earthquake -fukushima nuclear power station accident as an example, threats to the nuclear power plant by earthquake are investigated and impacts on social,  economic and ecological environment caused by nuclear power station accident are analyzed. This paper drew lessons from previous accidents and put forward a variety of countermeasures which are from both the technical and management aspects. This paper also put forward some suggestions. Security measures of the existing nuclear power plants should be assessed carefully. The long-term construction plan of the nuclear power plant should be improved. In addition,  emergency management mechanism of the nuclear power plant can be enhanced in the future. The earthquake monitoring and earthquake early-warning system is critical and promoted to be established widely. The nuclear probability safety analysis (PSA) could be investigated in depth. The security education of the public should be continuously popularized and disaster drills be carried out regularly. International cooperation and communication are also advocated to be strengthened. All these measures can be significant in human process to explore nuclear energy correctly. We also appeal people all over the world to respect the nature,  enjoy the nature,  and to create and enjoy the new civilization of human beings.

Keywords： nuclear power plant     seismic hazard     tsunami     location safety     base isolation     energy dissipation     three-dimensionalbase isolation    

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Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 350-367 doi: 10.1007/s11709-022-0923-0

Abstract: A new rocking constraint device (RCD) is developed for three-dimensional (3D) base-isolated frame structures

Keywords： three-dimensional isolation     rocking behavior     rocking constraint device     replaceable damping component    

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Innovative seismic retrofitting strategy of added stories isolation system

Min-Ho CHEY, J. Geoffrey CHASE, John B. MANDER, Athol J. CARR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 13-23 doi: 10.1007/s11709-013-0195-9

Abstract: The seismic performance of “added stories isolation” (ASI) systems are investigated for 12-story momentThe isolation layer, as a core design strategy, is optimally designed based on optimal TMD design principleresults include the identification of differences in the number of added story by which the suggested isolation

Keywords： added stories     seismic isolation     tuned mass damper     parametric optimization     statistical method    

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H∞ control in the frequency domain for a semi-active floor isolation system

Yundong SHI, Tracy C BECKER, Masahiro KURATA, Masayoshi NAKASHIMA

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 264-275 doi: 10.1007/s11709-013-0214-x

Abstract: A floor isolation system installed in a single floor or room in a fixed base structure is designed toWith this configuration, the input motions to the floor isolation from the ground motions are filteredThe floor isolation system should minimize the acceleration to protect equipment; however, displacementSemi-active control with an control was adopted for the floor isolation system and a new input shapingA series of shake table tests for a semi-active floor isolation system using rolling pendulum isolators

Keywords： semi-active     floor isolation     H∞ control     MR damper     shaping filter     shaking table    

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Study of base friction simulation tests based on a complicated engineered bridge slope

Liu HE, Guang WU, Hua WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 393-397 doi: 10.1007/s11709-012-0174-6

Abstract: In this paper, a physical base friction test model of a slope is established.the slope in both its natural state and during excavation loading is qualitatively analyzed through baseThe base friction test results are then subjected to comparison and analysis using finite element numerical

Keywords： base friction test     slope stability evaluation     bridge slope    

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Isolation and application of predatory

Ran Yu, Shiwen Zhang, Zhoukai Chen, Chuanyang Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0900-3

Abstract: Indigenous predatory BALO strains were successfully isolated from activated sludge. Sludge SRF and CST were significantly reduced by BALOs induced biolysis process. The increase of BALO input dosage promoted the sludge biolysis efficiency. Sludge biolysis disintegrated flocs and lysed cells for internal water release. The optimal sludge biolysis time was 24 h and no pH adjustment was needed. -and-like organisms (BALOs) are a group of ubiquitous and obligate predatory bacteria and commonly used as biocontrol agents. In this study, an efficient, environmental-friendly, and convenient BALOs encouraged municipal waste sludge biolysis pretreatment technique was developed and investigated for dewaterability enhancement of excess waste sludge. The indigenous predatory BALOs were successfully isolated from the sludge for biolysis treatment. Without any chemical addition or pH adjustment, the sludge specific resistance (SRF) and capillary suction time (CST) were significantly reduced by as high as 53.4% and 23.8%, respectively within 24 h’s treatment, which would further be lowered with the increase of BALOs input dosage. However, the continuous extension of reaction time would worsen the sludge dewaterability. The decreases of SRF and CST accompanied with the increases of sludge disintegration degree and soluble chemical oxygen demand, nitrogen, and phosphorus concentrations all emphasized the contributions of BALOs’ predation activities to sludge disturbance, cell lysis, and consequently the release of sludge intracellular water to finally effectively improve the sludge dewaterability and disposal efficiency.

Keywords： Bdellovibrio-and-like organisms (BALOs)     Biolysis     Activated sludge     Dewaterability     Predation    

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Novel polymorphic EST-based microsatellite marker isolation and characterization from

Manosh Kumar BISWAS,Peng CHEN,Mohamed Hamdy AMAR,Xiuxin DENG

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 1,   Pages 60-65 doi: 10.15302/J-FASE-2015048

Abstract: Novel simple sequence repeat (SSR) markers were developed to evaluate their utility for genetic diversity and breeding studies of and related species. A total of 108 primer pairs were characterized by PCR amplification experiments. Among these, 61 were polymorphic and transferable to other citrus species. The number of alleles per locus ranged from 2 to 6, with an average of 2.37 alleles per locus. The expected heterozygosity and observed heterozygosity ranged from 0 to 0.83 and 0 to 1.00, respectively. These novel polymorphic SSR markers will be useful for citrus cultivar identification and evaluation as well as breeding studies.

Keywords： microsatellite     polymorphism     Poncirus trifoliata    

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seismic response control on top of Three-Gorges ship lift towers using magnetorheological intelligent isolation

Weilian QU, Jianwei TU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 32-41 doi: 10.1007/s11709-009-0003-8

Abstract: This paper proposes a roof magnetorheological (MR) intelligent isolation system to prevent the seismicthe fundamental semi-active control equation for the Three-Gorges ship lift where the MR intelligent isolationexperimental model of the ship lift was given, the vibrating table experiment of the MR intelligent isolationwhipping effect was carried out and the results of the inverse neural network control strategy and passive isolationIt was proven that the MR intelligent isolation system with proper control strategy can greatly reduce

Keywords： Three-Gorges ship lift tower     whipping effect     magnetorheological (MR) intelligent isolation system     neural    

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Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipation

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 297-306 doi: 10.1007/s11709-015-0308-8

Abstract: Based on the performance results of the previously suggested smart building isolation systems (1st companionresults of this study include the identification of differences in the mechanisms by which smart building isolationLess variability is also seen for the semi-active isolation systems, indicating an increased robustness

Keywords： smart building isolation     story and structural     energy-dissipation     damage assessment    

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Base editors: development and applications in biomedicine

Frontiers of Medicine 2023, Volume 17, Issue 3,   Pages 359-387 doi: 10.1007/s11684-023-1013-y

Abstract: Base editor (BE) is a gene-editing tool developed by combining the CRISPR/Cas system with an individualdeaminase, enabling precise single-base substitution in DNA or RNA without generating a DNA double-strandBase editors offer more precise and secure genome-editing effects than other conventional artificialSince the development of the two main base editors, cytosine base editors (CBEs) and adenine base editorsHere, we review the recent development of base editors, summarize their applications in the biomedical

Keywords： base editing     CBE     ABE     ADAR     DdCBE     disease model     therapeutic application    

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Multistage-batch bipolar membrane electrodialysis for base production from high-salinity wastewater

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 764-773 doi: 10.1007/s11705-021-2114-2

Abstract: However, the low concentration of base generated from a traditional BMED process may limit the viabilityreport an especially designed multistage-batch (two/three-stage-batch) BMED process to increase the baseconcentration by adjusting different volume ratios in the acid (Vacid), base (Vbase), and salt compartments (Vsalt).–1, which was higher than the most reported base production by BMED.

Keywords： bipolar membrane electrodialysis     multistage-batch     base production     high-salinity wastewater    

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Aseismic smart building isolation systems under multi-level earthquake excitations: Part I, conceptual

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 286-296 doi: 10.1007/s11709-015-0307-9

Abstract: structural control strategy, tuned mass damper (TMD) inspired passive and semi-active smart building isolationThe isolated structure’s upper stories can be utilized as a large scaled TMD, and the isolation layerThe seismic performance of the suggested isolation systems are investigated for 12-story reinforced concreteResults show that semi-active smart building isolation systems can effectively manage seismic response

Keywords： tuned mass damper     smart building isolation     resettable device     non-linear     statistical assessment    

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Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 784-794 doi: 10.1007/s11705-022-2278-4

Abstract: biocatalysts; however, it is limited by the conditions of metal–organic framework synthesis and its acid-baseHerein, a biocatalytic platform with improved acid-base stability was constructed via a one-pot methodAfter encapsulation, the stability, especially the acid-base stability, of amyloglucosidases@bismuth-ellagic

Keywords： bismuth-ellagic acid     in situ encapsulation     enzyme@MOF biocomposites    

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Application of Cu nanoparticles as N32 base oil additives

Qiang HE, Jun YE, Hongzhao LIU, Jinling LI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 93-97 doi: 10.1007/s11465-009-0083-0

Abstract: Cu nanoparticles as N32 base oil additives are studied in the paper and their structure is characterizedThe results show that N32 base oil with 0.5% Cu nanoparticle can improve the test sample contact fatiguelife than pure N32 base oil.

Keywords： Cu nanoparticle     tribological property     contact fatigue     weibull distribution    

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Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1514-1523 doi: 10.1007/s11705-021-2092-4

Abstract: A base-free catalytic system for the aerobic oxidation of 5-hydroxymethyl-2-furfural was exploited byThe Pt nanocatalysts were well-dispersed and highly active for the base-free oxidation of 5-hydroxymethyl

Keywords： aerobic oxidation     base-free     5-hydroxymethyl-2-furfural     Pt nanoparticle     thermoresponsive block copolymer    

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Title Author Date Type Operation

The earthquake threat and countermeasures to the safety of nuclear power plants

Zhou Fulin,Tan Ping,Liu Dewen

Journal Article

Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Journal Article

Innovative seismic retrofitting strategy of added stories isolation system

Min-Ho CHEY, J. Geoffrey CHASE, John B. MANDER, Athol J. CARR

Journal Article

H∞ control in the frequency domain for a semi-active floor isolation system

Yundong SHI, Tracy C BECKER, Masahiro KURATA, Masayoshi NAKASHIMA

Journal Article

Study of base friction simulation tests based on a complicated engineered bridge slope

Liu HE, Guang WU, Hua WANG

Journal Article

Isolation and application of predatory

Ran Yu, Shiwen Zhang, Zhoukai Chen, Chuanyang Li

Journal Article

Novel polymorphic EST-based microsatellite marker isolation and characterization from

Manosh Kumar BISWAS,Peng CHEN,Mohamed Hamdy AMAR,Xiuxin DENG

Journal Article

seismic response control on top of Three-Gorges ship lift towers using magnetorheological intelligent isolation

Weilian QU, Jianwei TU

Journal Article

Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipation

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Journal Article

Base editors: development and applications in biomedicine

Journal Article

Multistage-batch bipolar membrane electrodialysis for base production from high-salinity wastewater

Journal Article

Aseismic smart building isolation systems under multi-level earthquake excitations: Part I, conceptual

Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR

Journal Article

Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Journal Article

Application of Cu nanoparticles as N32 base oil additives

Qiang HE, Jun YE, Hongzhao LIU, Jinling LI,

Journal Article

Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Journal Article