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HHT-based crack identification method for start-up rotor

Bing LI, Chunlin ZHANG, Zhengjia HE

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 300-304 doi: 10.1007/s11465-012-0328-1

Abstract:

This paper presents a crack identification method for start-up rotor based on the Hilbert-Huang transformHHT is employed to detect the shallower crack, and is then tested during the start-up process of theThe results of the experiment show that HHT is a better tool for crack detection than fast Fourier transform

Keywords： cracked rotor     start-up     Hilbert-Huang transform (HHT)    

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Acceleration of the particulate organic matter hydrolysis by start-up stage recovery and its original

Yanqing Duan, Aijuan Zhou, Xiuping Yue, Zhichun Zhang, Yanjuan Gao, Yanhong Luo, Xiao Zhang

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1304-3

Abstract: Mesh sieves with different pore sizes were used as primary pretreatment at the start-up-stage of theespecially the cellulose-degrading bacteria Paraclostridium and psychrophile Psychrobacter, making upFurthermore, the potential benefits and application of improved POM hydrolysis by start-up stage recovery

Keywords： Particulate organic matter (POM)     Hydrolysis     Microbial community     Mass balance    

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Development of metal-supported SOFC

Zhou Yongchuan,Song Shidong,Han Minfang

Strategic Study of CAE 2013, Volume 15, Issue 2,   Pages 27-32

Abstract:

Developing of intermediate temperature (IT) and low temperature (LT) solid oxide fuel cell (SOFC) allows metal to be used as an appropriate material for SOFC. In consistant to other types of SOFCs, metal-supported SOFC (MS-SOFC) exhibits higher electrical and thermal conductivity, better mechanical strength and lower cost, and thereby has attracted more and more attentions. Recently, MS-SOFC has developed various structures and fabrication process of supporter, electrolyte and as well as the electrodes. In this paper, the state of the art of MS-SOFC and their fabrication process are reviewed and the key concerns on MS-SOFC are also put forward.

Keywords： solid oxide fuel cell     metal-supported SOFC     thin-film electrolyte     thermal cycle     fast start-up    

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Start-up of PN-anammox system under low inoculation quantity and its restoration after low-loading rate

Guoliang Zhang, Liang Zhang, Xiaoyu Han, Shujun Zhang, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1324-z

Abstract: Abstract • PN-A was start-up under low inoculation amount and a higher NRR was achieved. • PN-anammoxThereafter, excess nitrate build-up was observed under low-loading conditions, and recovery strategiesAfterwards, effluent back-flow was added into the reactor to control the up-flow velocity.partial nitritation and anammox activity were in balance, and an increase in nitrogen removal rate up

Keywords： PN-anammox     Granular sludge     Excess nitrate build-up     Recovery strategy for partial nitrification     Aggressive    

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Performance and bioparticle growth of anaerobic baffled reactor (ABR) fed with low-strength domestic sewage

Jing FENG,Yili WANG,Xueyuan JI,Dongqin YUAN,Hui LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 352-364 doi: 10.1007/s11783-014-0638-0

Abstract: The start-up period of the ABR was finished within approximately 130 days at a temperature below 25°Cthe five compartments increased from 0.050 mm to 0.111, 0.107, 0.104, 0.110, and 0.103 mm during the start-up

Keywords： low-strength domestic wastewater     start-up     bioparticles     morphology     anaerobic baffled reactor    

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Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 460-472 doi: 10.1007/s11708-021-0733-4

Abstract: Water transport is of paramount importance to the cold start of proton exchange membrane fuel cells (Analysis of water transport in cathode catalyst layer (CCL) during cold start reveals the distinct characteristicsThis work studies the effect of CCL mesoscopic pore-morphology on PEMFC cold start.cold-starting of a cell with a CCL of less tortuous mesoscale morphology can succeed, whereas starting upFor the sake of better cold start performance, novel preparation methods, which can create catalyst layers

Keywords： cold start     energy conversion     fuel cells     mesoscale morphology     tortuosity     water management    

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Hydrogen-Powered Trains Start to Roll

Chris Palmer

Engineering 2022, Volume 11, Issue 4,   Pages 9-11 doi: 10.1016/j.eng.2022.02.003

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An Experimental Investigation on Low Load Combustion Stability and Cold-Firing Capacity of a Gasoline Compression Ignition Engine Article

Lei Zhou, Jianxiong Hua, Haiqiao Wei, Yiyong Han

Engineering 2019, Volume 5, Issue 3,   Pages 558-567 doi: 10.1016/j.eng.2018.12.010

Abstract: However, low load combustion stability and firing in cold-start operations are two major challenges forThe objective of this work is to study effective methods to achieve GCI engine cold start-up.The results show that start of injection (SOI) during the intake stroke yields the best fuel economy,With highly reactive products made by in-cylinder fuel reforming and fast heat accumulation in the combustionand warm-up.

Keywords： Gasoline compression ignition     Cold start     Warm-up condition     Fuel-injection strategy     Combustion stability    

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Structure controlling and process scale-up in the fabrication of nanomaterials

Chunzhong LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 18-25 doi: 10.1007/s11705-009-0305-3

Abstract: The research on process engineering and scale-up will be very important for the commercial production

Keywords： scale-up     significant commercial     electroanalytical     engineering     laboratory    

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BUEES: a bottom-up event extraction system

Xiao DING,Bing QIN,Ting LIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 541-552 doi: 10.1631/FITEE.1400405

Abstract: In this paper, we present BUEES, a bottom-up event extraction system, which extracts events from the

Keywords： Event extraction     Unsupervised learning     Bottom-up    

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Preliminary design of an SCO conversion system applied to the sodium cooled fast reactor

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 832-841 doi: 10.1007/s11708-021-0777-5

Abstract: dioxide (SCO2) Brayton cycle has become an ideal power conversion system for sodium-cooled fast

Keywords： sodium-cooled fast reactor (SFR)     supercritical carbon dioxide (SCO2)     brayton cycle     load    

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Start-ups Seek to Accelerate Path to Nuclear Fusion

Mitch Leslie

Engineering 2022, Volume 8, Issue 1,   Pages 6-8 doi: 10.1016/j.eng.2021.11.006

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Working Up Green, and Living Up Green

Ji-shan He

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 2-2 doi: 10.15302/J-FEM-2014002

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The Research and Implementation of EAP - FAST Protocol in Public Wireless Local Area Network

Cao Ping,Pei Wenjiang

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 78-82

Abstract: protocol is vulnerable to dictionary attacks, the flexible authentication via secure tunneling (EAP - FASTand design this protocol in public wireless local area network, and implement the function of EAP - FASTpeer, authenticator and FAST server in PWLAN integrate experimentation flat.

Keywords： network     port based network access control (802.1x)     flexible authentication via secure tunneling (EAP —FAST    

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Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 130-141 doi: 10.1007/s11465-014-0298-6

Abstract: For this purpose, the performances of envelope detection with fast Fourier transform (FFT) and continuous

Keywords： Fault detection     spline wavelet     continuous wavelet transform     fast Fourier transform    

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Title Author Date Type Operation

HHT-based crack identification method for start-up rotor

Bing LI, Chunlin ZHANG, Zhengjia HE

Journal Article

Acceleration of the particulate organic matter hydrolysis by start-up stage recovery and its original

Yanqing Duan, Aijuan Zhou, Xiuping Yue, Zhichun Zhang, Yanjuan Gao, Yanhong Luo, Xiao Zhang

Journal Article

Development of metal-supported SOFC

Zhou Yongchuan,Song Shidong,Han Minfang

Journal Article

Start-up of PN-anammox system under low inoculation quantity and its restoration after low-loading rate

Guoliang Zhang, Liang Zhang, Xiaoyu Han, Shujun Zhang, Yongzhen Peng

Journal Article

Performance and bioparticle growth of anaerobic baffled reactor (ABR) fed with low-strength domestic sewage

Jing FENG,Yili WANG,Xueyuan JI,Dongqin YUAN,Hui LI

Journal Article

Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Journal Article

Hydrogen-Powered Trains Start to Roll

Chris Palmer

Journal Article

An Experimental Investigation on Low Load Combustion Stability and Cold-Firing Capacity of a Gasoline Compression Ignition Engine

Lei Zhou, Jianxiong Hua, Haiqiao Wei, Yiyong Han

Journal Article

Structure controlling and process scale-up in the fabrication of nanomaterials

Chunzhong LI,

Journal Article

BUEES: a bottom-up event extraction system

Xiao DING,Bing QIN,Ting LIU

Journal Article

Preliminary design of an SCO conversion system applied to the sodium cooled fast reactor

Journal Article

Start-ups Seek to Accelerate Path to Nuclear Fusion

Mitch Leslie

Journal Article

Working Up Green, and Living Up Green

Ji-shan He

Journal Article

The Research and Implementation of EAP - FAST Protocol in Public Wireless Local Area Network

Cao Ping,Pei Wenjiang

Journal Article

Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Journal Article