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Identification of abnormal operating conditions and intelligent decision system

Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 456-462 doi: 10.1007/s11465-011-0224-0

Abstract: flow state” is difficult to form using the soil dug in the capsule because it can cause three abnormaloperating conditions, including occlusion, caking in the capsule, and spewing at the outlet of the dumpThese abnormal operating conditions can, in turn, trigger failure in tunneling, cutter-device damage,This present paper effectively integrates the mechanism of abnormal operating conditions and knowledgeof soil conditioning, and establishes a uniform model of identifying abnormal conditions and intelligent

Keywords： earth pressure balance (EPB) shield machine     soil pressure cabin     abnormal operating condition     belief rule-base    

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A knowledge reasoning Fuzzy-Bayesian network for root cause analysis of abnormal aluminum electrolysiscell condition

Weichao Yue, Xiaofang Chen, Weihua Gui, Yongfang Xie, Hongliang Zhang

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 414-428 doi: 10.1007/s11705-017-1663-x

Abstract: Root cause analysis (RCA) of abnormal aluminum electrolysis cell condition has long been a challengingIn addition, accurate RCA of abnormal aluminum electrolysis cell condition is the precondition of improvingRCA of abnormal condition is a complex work of multi-source knowledge fusion, which is difficult to ensurethe RCA accuracy of abnormal cell condition because of dwindling and frequent flow of experienced technicianscondition by technicians providing a clear and intuitive framework to this complex task, and also achieve

Keywords： abnormal aluminum electrolysis cell condition     Fuzzy-Bayesian network     multi-source knowledge solidification    

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Research progress on FASN and MGLL in the regulation of abnormal lipid metabolism and the relationship

Jingyue Zhang, Yawen Song, Qianqian Shi, Li Fu

Frontiers of Medicine 2021, Volume 15, Issue 5,   Pages 649-656 doi: 10.1007/s11684-021-0830-0

Abstract: Tumorigenesis involves metabolic reprogramming and abnormal lipid metabolism, which is manifested byThis article introduces the structures and functions of FASN and MGLL, their relationship with abnormal

Keywords： FASN     MGLL     lipid metabolism     tumor invasion     metastasis    

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A Cell Condition-Sensitive Frequency Segmentation Method Based on the Sub-Band Instantaneous Energy Spectrum Article

Zhaohui Zeng, Weihua Gui, Xiaofang Chen, Yongfang Xie, Hongliang Zhang, Yubo Sun

Engineering 2021, Volume 7, Issue 9,   Pages 1282-1292 doi: 10.1016/j.eng.2020.11.012

Abstract: Ultimately, a cell condition-sensitive frequency segmentation method is given.low-frequency noise, and subdivides the low-frequency noise into the [0.001, 0.010] Hz band of metal pad abnormalThe proposed frequency segmentation method is more sensitive to cell condition changes and can obtainmore elaborate details of online cell condition information, thus providing a more reliable and accurateonline basis for cell condition monitoring and control decisions.

Keywords： Sub-band instantaneous energy spectrum     Cell condition-sensitive frequency band     Frequency segmentation     Metal pad abnormal rolling     Aluminum electrolysis    

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The Research on Improving the Ability to Pass Over the Three Gorges Shiplock by Optimizing Hydraulic Character

Cao Guangrong,Hu Ya’an and Gao Xiong

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 75-80

Abstract: This paper discusses the fluctuating character of the water in Chamber 1 when No.2 chamber head is operatingas the first one under the four-steps shiplock operating mode, expatiates the forming principle of thefluctuation, analyzes the impact on the water fluctuation in Chamber 1 when No.2 chamber head is operatingvalve opening pattern satisfying the safety demand when Chamber 1 is waiting, and tests the berthing conditionshow that during the course of the Three-Gorges shiplock being fulfilled under the four-steps shiplock operating

Keywords： Three Gorges shiplock；operating mode；water condition；passing ability    

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Experimental study on influence of operating parameters on tar components from corn straw gasification

Shuai GUO, Xiao WEI, Deyong CHE, Hongpeng LIU, Baizhong SUN

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 374-383 doi: 10.1007/s11708-020-0710-3

Abstract: Gasification is a promising approach for converting solid fuel sources, including renewable ones like biomass, for use. The main problem in biomass gasification is the formation of condensable tars, including polycyclic aromatic hydrocarbons (PAHs). This paper investigated the conversion of tar components during corn straw gasification. It analyzed collected tar components using a gas chromatograph-mass spectrograph (GC-MS). Experimental results indicate that, with increasing temperature from 700°C to 900°C, the concentrations of benzene, indene, phenanthrene, naphthalene, acenaphthylene, fluorene, and pyrene increased whereas those of toluene, phenol, 1-methylnaphthalene, and 2-methylnaphthalene decreased. As the equivalence ratio (ER) increased from 0.21 to 0.34, the concentrations of indene and phenanthrene increased from 0.148% and 0.087% to 0.232% and 0.223%, respectively. Further, the phenol content increased as ER increased from 0.21 to 0.26 and then decreased as the ER increased further to 0.34. Other parameters like the steam/biomass (S/B) ratio and catalyst also played a critical role in tar reduction. This paper demonstrates the conversion of some tar components and elucidates their chemical properties during gasification.

Keywords： gasification     tar components     operating parameters    

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Prevention of surgical site infection under different ventilation systems in operating room environment

Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1327-9

Abstract: Biological particles in the operating room (OR) air environment can cause surgical site infections (SSIseffective ventilation system among the four ventilation systems for ensuring air cleanliness in the operatingThis study also indicated that air cleanliness in the operating area depended not only on the airflow

Keywords： Operating room (OR)     Bacteria-carrying particles (BCPs)     Surgical site infections (SSIs)     Ventilation    

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Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 400-409 doi: 10.1007/s11708-017-0459-5

Abstract: in the LCL filter, the transient behavior under sudden changes, and the voltage support under fault condition

Keywords： PV system     grid interface     feedback linearization     inverter     LCL filter    

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Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 492-499 doi: 10.1007/s11705-011-1143-7

Abstract: The effects of the operating pressure, cross flow velocity, feed concentration, and temperature on theThe permeate flux and the retention rate under different nanofiltration operating conditions were alsoThe effects of the operating conditions on the permeate flux and the retention rate were explained by

Keywords： nanofiltration membrane     streaming potential     Zeta potential     permeate flux     retention rate    

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Intelligent technologies help operating mobile cabin hospitals effectively cope with COVID-19

Ying ZHOU, Lingling WANG, Lieyun DING, Zhouping TANG

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 459-460 doi: 10.1007/s42524-020-0113-5

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Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 414-423 doi: 10.1007/s11708-010-0108-8

Abstract: In this paper, a multi-zone model is developed to predict the operating range of homogeneous charge compressionThe boundaries of the operating range were determined by knock (presented by ringing intensity), partialsatisfactory agreement with measurements made under different initial temperatures and equivalence ratios; the operatingFurthermore, the model was applied to predict the operating range of the HCCI engine under differentThe potential to extend the operating range of the HCCI engine through two strategies, i.e., variable

Keywords： homogeneous charge compression ignition (HCCI) engine     multi-zone     operating range    

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AED-Net: An Abnormal Event Detection Network Article

Tian Wang, Zichen Miao, Yuxin Chen, Yi Zhou, Guangcun Shan, Hichem Snoussi

Engineering 2019, Volume 5, Issue 5,   Pages 930-939 doi: 10.1016/j.eng.2019.02.008

Abstract: In this paper, a self-supervised framework called the abnormal event detection network (AED-Net), whichExperiments in global and local abnormal event detection are carried out on Monitoring Human Activity

Keywords： Abnormal events detection     Abnormal event detection network     Principal component analysis network     Kernel    

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Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 134-141 doi: 10.1007/s11708-015-0354-x

Abstract: The operating mechanism of the pulsating heat pipe (PHP) is not well understood and the present technologyThe operating characteristics were studied for the variation of heat input, filling ratio (FR) and inclination

Keywords： closed loop pulsating heat pipe     thermal performance     operation limit     thermography    

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A review of condition-based maintenance: Its prognostic and operational aspects

Yanrong LI, Shizhe PENG, Yanting LI, Wei JIANG

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 323-334 doi: 10.1007/s42524-020-0121-5

Abstract: Condition-based maintenance (CBM) detects early signs of failure and dictates when maintenance shouldbe performed based on the actual condition of a system.

Keywords： condition-based maintenance     prognostics     operational decision-making     reliability    

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Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 171-175 doi: 10.1007/s11465-009-0091-0

Abstract: Trend prediction technology is the key technology to achieve condition-based maintenance of mechanicalnormal operation of units and save maintenance costs, trend prediction technology is studied to achieve condition-basedThe industrial site verification shows that the proposed trend prediction technology can reflect the operatingcondition trend change of the water injection units and provide technical means to achieve condition-based

Keywords： water injection units     condition-based maintenance     trend prediction    

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Title Author Date Type Operation

Identification of abnormal operating conditions and intelligent decision system

Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU

Journal Article

A knowledge reasoning Fuzzy-Bayesian network for root cause analysis of abnormal aluminum electrolysiscell condition

Weichao Yue, Xiaofang Chen, Weihua Gui, Yongfang Xie, Hongliang Zhang

Journal Article

Research progress on FASN and MGLL in the regulation of abnormal lipid metabolism and the relationship

Jingyue Zhang, Yawen Song, Qianqian Shi, Li Fu

Journal Article

A Cell Condition-Sensitive Frequency Segmentation Method Based on the Sub-Band Instantaneous Energy Spectrum

Zhaohui Zeng, Weihua Gui, Xiaofang Chen, Yongfang Xie, Hongliang Zhang, Yubo Sun

Journal Article

The Research on Improving the Ability to Pass Over the Three Gorges Shiplock by Optimizing Hydraulic Character

Cao Guangrong,Hu Ya’an and Gao Xiong

Journal Article

Experimental study on influence of operating parameters on tar components from corn straw gasification

Shuai GUO, Xiao WEI, Deyong CHE, Hongpeng LIU, Baizhong SUN

Journal Article

Prevention of surgical site infection under different ventilation systems in operating room environment

Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng

Journal Article

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Journal Article

Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

Journal Article

Intelligent technologies help operating mobile cabin hospitals effectively cope with COVID-19

Ying ZHOU, Lingling WANG, Lieyun DING, Zhouping TANG

Journal Article

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Journal Article

AED-Net: An Abnormal Event Detection Network

Tian Wang, Zichen Miao, Yuxin Chen, Yi Zhou, Guangcun Shan, Hichem Snoussi

Journal Article

Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Journal Article

A review of condition-based maintenance: Its prognostic and operational aspects

Yanrong LI, Shizhe PENG, Yanting LI, Wei JIANG

Journal Article

Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Journal Article