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Isolation, identification and primary application of bacteria from putrid alkaline silica sol

Lijie REN,Ye HAN,Shuwen YANG,Xiqian TAN,Jin WANG,Xin ZHAO,Jie FAN,Ting DONG,Zhijiang ZHOU

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 330-339 doi: 10.1007/s11705-014-1419-9

Abstract: The putrefaction of alkaline silica sol was investigated in this paper. The total colony numbers in three alkaline silica sol samples were 1.47×10 , 1.25×10 , and 9.45×10 cfu·mL , respectively. The salt- and alkali-tolerant strains were isolated and selected using nutrient agar medium at 2.5% salinity and pH 9.5. Basic morphological, physiological and biochemical tests were conducted to confirm the preliminary characterizations of the strains. Based on API 50 CH test and 16S rDNA gene sequence analysis, the isolated strains were finally identified as sp., sp., and . The survivability of the strains under different conditions such as salinities, acidities and temperatures was also studied. Some suitable methods for degerming, such as product pipe steam sterilization and regular canister cleaning, were proposed. To explore the possibility of isolates in industrial application, their alkaline protease and amylase production abilities were preliminarily studied. Five strains produced alkaline protease, whereas two strains produced alkaline amylase. Thus, understanding of the putrefaction on alkaline silica sol would be beneficial for improving industrial production.

Keywords： putrid alkaline silica sol     alkaliphile     isolation and identification     sterilization     alkaline protease and    

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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 principleSpecific results include the identification of differences in the number of added story by which thesuggested isolation systems remove energy.

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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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: These novel polymorphic SSR markers will be useful for citrus cultivar identification and evaluation

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 companionThe specific results of this study include the identification of differences in the mechanisms by whichsmart building isolation systems remove energy, based on the differences in the devices used.Less 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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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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Variational mode decomposition based modal parameter identification in civil engineering

Mingjie ZHANG, Fuyou XU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1082-1094 doi: 10.1007/s11709-019-0537-3

Abstract: An out-put only modal parameter identification method based on variational mode decomposition (VMD) isThe proposed identification method can straightforwardly extract the mode shape vectors using the modaldemonstrate the efficiency and highlight the superiority of the proposed method in modal parameter identificationThe proposed method is proved to be efficient and accurate in modal parameter identification for both

Keywords： modal parameter identification     variational mode decomposition     civil structure     nonlinear system     closely    

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Non-convex sparse optimization-based impact force identification with limited vibration measurements

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0762-2

Abstract: Impact force identification is important for structure health monitoring especially in applications involvingDifferent from the traditional direct measurement method, the impact force identification technique is> regularization often identifies false forces in non-loaded regions, interfering with the accurate identificationmml:mtext>-ADMM is applied to solve the impact force identificationSimulations and experiments are performed on a composite plate to verify the identification accuracy

Keywords： impact force identification     inverse problem     sparse regularization     under-determined condition     alternating    

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The research on structural damage identification using rough set and integrated neural network

Juelong LI, Hairui LI, Jianchun XING, Qiliang YANG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 305-310 doi: 10.1007/s11465-013-0259-5

Abstract:

A huge amount of information and identification accuracy in large civil engineering structural damageidentification has not been addressed yet.To efficiently solve this problem, a new damage identification method based on rough set and integratedThe decision fusion network will give the final damage identification results.The identification examples show that this method can simplify the redundant information to reduce the

Keywords： rough set     integrated neural network     damage identification     decision making fusion    

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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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Dynamical Experiment Research on New Seismic Isolation Bearings with SMA Wires

Deng Zongcai,Sun Hongjun,Liu Chunguo,Niu Kun,Deng Hongliang

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 61-68

Abstract:

As the aim of improving the utilization ratio of SMAs in SMA-rubber seismic isolation bearings, severaldifferent SMA-rubber seismic isolation bearings were designed, and energy dissipation experiments werewhich affect the level stiffness, energy dissipation and equivalent damping ratio of SMA-rubber seismic isolationResult showed that the new SMA-rubber seismic isolation bearings have better hysteresis and energy dissipationIt provided the base to optimize the SMA-rubber seismic isolation bearings.

Keywords： shape memory alloy     seismic isolation bearings     initial stiffness     hysteresis energy dissipation     equivalent    

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Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0691-5

Abstract: Experimental results of the finger joint stiffness identification and finger impact tests under different

Keywords： multifingered hand     mechanism design     robot safety     variable stiffness actuator    

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Damage identification in connections of moment frames using time domain responses and an optimization

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 851-866 doi: 10.1007/s11709-021-0739-3

Abstract: In this study, an optimization-based method for joint damage identification of moment frames using theThen, the problem of joint damage identification is converted to a standard optimization problem.Then, a comparison between the proposed method and the existing damage identification method is provided

Keywords： damage identification     beam-to-column connection     time-domain response     optimization    

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Title Author Date Type Operation

Isolation, identification and primary application of bacteria from putrid alkaline silica sol

Lijie REN,Ye HAN,Shuwen YANG,Xiqian TAN,Jin WANG,Xin ZHAO,Jie FAN,Ting DONG,Zhijiang ZHOU

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

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

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

Variational mode decomposition based modal parameter identification in civil engineering

Mingjie ZHANG, Fuyou XU

Journal Article

Non-convex sparse optimization-based impact force identification with limited vibration measurements

Journal Article

The research on structural damage identification using rough set and integrated neural network

Juelong LI, Hairui LI, Jianchun XING, Qiliang YANG

Journal Article

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

Zhou Fulin,Tan Ping,Liu Dewen

Journal Article

Dynamical Experiment Research on New Seismic Isolation Bearings with SMA Wires

Deng Zongcai,Sun Hongjun,Liu Chunguo,Niu Kun,Deng Hongliang

Journal Article

Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous

Journal Article

Damage identification in connections of moment frames using time domain responses and an optimization

Journal Article