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A combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 497-510 doi: 10.1631/FITEE.1400349

Abstract: In this paper, a combined approach on closed-loop architecture modification is proposed to minimize theThen a common mode signal is created and added into the closed loop on the basis of modulated feedbackThe combined approach could be useful for many other closed-loop accelerometers.

Keywords： Bias drift     Closed-loop MEMS accelerometer     Modulated feedback approach     Temperature compensation    

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Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 55-65 doi: 10.1007/s11465-019-0545-y

Abstract: structural parameter design approach for an FSM system based on the quantitative analysis of the required closed-loopFirst, the open-loop transfer function of the FSM system is derived.transfer function, the notch filter and proportional-integral (PI) feedback controller are designed as a closed-loopThe gains of the PI controller are determined by maximizing the closed-loop bandwidth while ensuringThen, the two unknown variables of rotational radius and stiffness in the open-loop transfer function

Keywords： fast-steering mirror     structural parameter     PI controller     bandwidth     notch filter    

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Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment:

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 534-544 doi: 10.1007/s11783-014-0660-2

Abstract: In this study, the performance of nitrogen and phosphorus removal in a full-scale closed-loop bioreactor

Keywords： activated sludge model     Bayesian inference     biological nutrient removal     closed-loop bioreactor     oxidation    

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production system for industrial robots: A CPS-based hybrid architecture for smart assembly shop floors with closed-loop

Qingmeng TAN, Yifei TONG, Shaofeng WU, Dongbo LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 1-11 doi: 10.1007/s11465-019-0563-9

Abstract: for industrial robots, this study proposed a hybrid architecture for smart assembly shop floors with closed-loop

Keywords： cyber physical system     robot assembly     multiagent system     architecture    

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The Integration Model of Closed-Loop Supply Chain Resource Allocation Considering Remanufacturing

Xiao-qiu Shi,Yan-yan Li,Wei Long

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 132-135 doi: 10.15302/J-FEM-2016026

Abstract: remanufacturing supply chain, recycling and rebuilding of products form a reverse materials movement loopFor the characteristics of reverse logistics of remanufacturing supply chain, we propose a closed-loop

Keywords： remanufacturing     supply chain     reverse logistics     resource allocation     integration model    

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Pricing and production strategies in remanufacturing from the perspectives of supply chain: Review and future directions

Frontiers of Engineering Management doi: 10.1007/s42524-023-0251-7

Abstract: Remanufacturing is widely recognized as beneficial to the environment and a circular economy. However, remanufacturing is more complex than traditional manufacturing due to the effects of government policy, uncertainty of consumer preferences, competition and cooperation among firms, and so on. These factors motivate academics to optimize remanufacturing outcomes, especially for product pricing and production. This study reviews the published literature on pricing and production strategies in remanufacturing from four perspectives of supply chain, namely, government policy, consumer characteristics, relationships among firms, and supply chain structures. Review results can benefit scholars/practitioners in the future by highlighting the challenges and opportunities in remanufacturing strategies.

Keywords： remanufacturing     reverse and closed-loop supply chain     circular economy    

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On the principles of Parsimony and Self-consistency for the emergence of intelligence Position Paper

Yi MA, Doris TSAO, Heung-Yeung SHUM

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 9,   Pages 1298-1323 doi: 10.1631/FITEE.2200297

Abstract: Ten years into the revival of and artificial , we propose a theoretical framework that sheds light on understanding within a bigger picture of in general. We introduce two fundamental principles, and , which address two fundamental questions regarding : what to learn and how to learn, respectively. We believe the two principles serve as the cornerstone for the emergence of , artificial or natural. While they have rich classical roots, we argue that they can be stated anew in entirely measurable and computable ways. More specifically, the two principles lead to an effective and efficient computational framework, compressive , which unifies and explains the evolution of modern and most practices of artificial . While we use mainly visual data modeling as an example, we believe the two principles will unify understanding of broad families of autonomous intelligent systems and provide a framework for understanding the brain.

Keywords： Intelligence     Parsimony     Self-consistency     Rate reduction     Deep networks     Closed-loop transcription    

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Carbon Quotas, Subsidies and Engineering Machinery Remanufacturing

Dong-bin Hu,Chen-xi Xiao,Xiao-hong Chen

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 50-58 doi: 10.15302/J-FEM-2016014

Abstract: quota allocations and government subsidies policies on manufacturers’ profits and recovery rates in a closed-loop

Keywords： competitive closed-loop supply chain     government subsidies     carbon quota allocation     remanufacturing    

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Improvement of the cascading closed loop cycle system

ZHANG Guoqiang, CAI Ruixian

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 341-346 doi: 10.1007/s11708-007-0051-5

Abstract: Aspen Plus was used to simulate and get more information about the cascading closed loop cycle (CCLC)
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A naive optimization method for multi-line systems with alternative machines

Weichang KONG, Fei QIAO, Qidi WU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 377-392 doi: 10.1007/s11465-019-0544-z

Abstract: When a reasonable target value is provided, the proposed method can realize closed-loop optimization

Keywords： multi-line systems     alternative machines     feedback control     closed-loop optimization    

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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: A series of experiments were conducted on a closed loop PHP with 5 turns made of copper capillary tube

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

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Achievement of high rate nitritation with aerobic granular sludge reactors enhanced by sludge recirculation events

Zulkifly JEMAAT,Josep Anton TORA,Albert BARTROLI,Julián CARRERA,Julio PEREZ

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 528-533 doi: 10.1007/s11783-014-0641-5

Abstract: A ratio control strategy has been used to demonstrate the feasibility of this automatic control procedure for the achievement of stable full and partial nitritation. The control strategy assured constant ratio between the dissolved oxygen (DO) and the total ammonia nitrogen (TAN) concentrations in the bulk liquid of aerobic granular sludge reactors operating in continuous mode. Three different set-ups with different reactor capacities were used (3, 110, and 150 L). High strength synthetic wastewaters and reject water were tested with similar performance. Achieved nitrogen loading rates ranged between 0.4 and 6.1 kgN·m ·d , at temperatures between 20°C and 30°C. Granular sludge and nitritation were stable in the long term continuous operation of the reactors. Suitable stable effluent for Anammox has been obtained using the desired TAN setpoint (i.e. 50% of influent ammonium oxidation). An existing biofilm model developed incorporating the implemented control loops and validated in a previous publication was used to investigate the effects of the ammonium concentration of the influent and the biofilm density on the achievement of full nitritation. The model demonstrated how sludge recirculation events led to a stable and significant increase of the biomass concentration in the reactor, which in turn resulted in the achievement of high nitrogen loading rates, due to the action of the control strategy. The model predicted an enhancement of stable full nitritation at higher ammonium concentrations in the influent. Poor influence of the biofilm density in the achievement of full nitritation was predicted with the model.

Keywords： partial nitrification     reject water     high strength ammonium wastewater     closed-loop control    

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Ball-disk rotor gyroscope adaptive quick-starttechnique Article

Xiao-wei LIU, Rui WENG, Hai LI, Hai-feng ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1430-1436 doi: 10.1631/FITEE.1600035

Abstract: Third, a piecewise closed-loop control algorithmis implemented to keep the angular acceleration of the

Keywords： Rotor gyroscope     Magnetically driven     Quick start     Piecewise algorithm     Closed-loop control    

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Classical state feedback controller for nonlinear systems using mean value theorem: closed loop-FOC of

Abrar ALLAG,Abdelhamid BENAKCHA,Meriem ALLAG,Ismail ZEIN,Mohamed Yacine AYAD

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 413-425 doi: 10.1007/s11708-015-0379-1

Abstract: The effectiveness of the proposed approach for closed loop-field oriented control (CL-FOC) of permanent

Keywords： Takagi-Sugeno (T-S) fuzzy systems     sector nonlinearity     nonlinear controller     linear matrix inequality (LMI) approach     differential mean value theorem (DMVT)     field oriented control (FOC)     linear parameter varying (LPV)    

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Oocyte-associated transcription factors in reprogramming after somatic cell nuclear transfer: a review

Fengxia YIN,Hui LIU,Shorgan BOU,Guangpeng LI

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 2,   Pages 104-113 doi: 10.15302/J-FASE-2014003

Abstract: The cytoplasmic milieu most likely contains all of the specific transcription and/or reprogramming factorsCertain transcription factors in the cytoplast may be critical as has been demonstrated for induced pluripotentThe maternal pronucleus exerts a predominant, transcription-dependent effect on embryo cytofragmentationWith deep analysis of transcriptomics in oocytes and early developmental stage embryos more maternal transcription

Keywords： nuclear reprogramming     somatic cell     transcription factors     transcriptomics    

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Title Author Date Type Operation

A combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Journal Article

Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Journal Article

Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment:

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

Journal Article

production system for industrial robots: A CPS-based hybrid architecture for smart assembly shop floors with closed-loop

Qingmeng TAN, Yifei TONG, Shaofeng WU, Dongbo LI

Journal Article

The Integration Model of Closed-Loop Supply Chain Resource Allocation Considering Remanufacturing

Xiao-qiu Shi,Yan-yan Li,Wei Long

Journal Article

Pricing and production strategies in remanufacturing from the perspectives of supply chain: Review and future directions

Journal Article

On the principles of Parsimony and Self-consistency for the emergence of intelligence

Yi MA, Doris TSAO, Heung-Yeung SHUM

Journal Article

Carbon Quotas, Subsidies and Engineering Machinery Remanufacturing

Dong-bin Hu,Chen-xi Xiao,Xiao-hong Chen

Journal Article

Improvement of the cascading closed loop cycle system

ZHANG Guoqiang, CAI Ruixian

Journal Article

A naive optimization method for multi-line systems with alternative machines

Weichang KONG, Fei QIAO, Qidi WU

Journal Article

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

Yu WANG

Journal Article

Achievement of high rate nitritation with aerobic granular sludge reactors enhanced by sludge recirculation events

Zulkifly JEMAAT,Josep Anton TORA,Albert BARTROLI,Julián CARRERA,Julio PEREZ

Journal Article

Ball-disk rotor gyroscope adaptive quick-starttechnique

Xiao-wei LIU, Rui WENG, Hai LI, Hai-feng ZHANG

Journal Article

Classical state feedback controller for nonlinear systems using mean value theorem: closed loop-FOC of

Abrar ALLAG,Abdelhamid BENAKCHA,Meriem ALLAG,Ismail ZEIN,Mohamed Yacine AYAD

Journal Article

Oocyte-associated transcription factors in reprogramming after somatic cell nuclear transfer: a review

Fengxia YIN,Hui LIU,Shorgan BOU,Guangpeng LI

Journal Article