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Analysis and control of micro-stepping characteristics of ultrasonic motor

Ning CHEN, Jieji ZHENG, Xianliang JIANG, Shixun FAN, Dapeng FAN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 585-599 doi: 10.1007/s11465-019-0577-3

Abstract: When the pulse number is relatively small, the stopping characteristics have a non-negligible effectThe speed curves and vibration results in functions of different pulse numbers are compared, and theTherefore, stator vibration, rotor velocity, and terminal displacements under different pulse numbersFinally, with the optimization of the pulse number, the motor achieves 3.3 µrad in clockwise and counterclockwise

Keywords： ultrasonic motor     stepping characteristics     pulse number control     synchronous acquisition system     precise    

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A novel soft-switching twin arc pulse MAG welding inverter

WANG Zhenmin, XUE Jiaxiang, WANG Fuguang, HUANG Shisheng

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 224-227 doi: 10.1007/s11465-007-0039-1

Abstract: The high-speed double wire pulse metal gas arc (MAG) welding process possesses advantages of automationTo meet the requirements of the double wire pulse MAG welding process, a novel double wire pulse MAGwelding inverter integrated with technologies, such as soft-switching, double closed loop control, andsynchronic control, is produced.Also, the synchronic control between the master inverter and the slave inverter is reliable.

Keywords： high-speed     control     computer     experiment indicate     platform    

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Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 406-410 doi: 10.1007/s11684-012-0217-3

Abstract: esophagus is perfused directly by prominent arteries and may provide a more consistent tissue source for pulseThe goal of this study was to evaluate the sensitivity and accuracy of an esophageal pulse oximetry probeon patients during controlled hypoxemia in comparison to measurements obtained with conventional pulsesub> is more accurate and enables earlier detection of hypoxemia when compared to conventional pulse

Keywords： esophageal pulse oximetry     conventional pulse oximetry     hypoxemia    

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MPC-based interval number optimization for electric water heater scheduling in uncertain environments

Jidong WANG, Chenghao LI, Peng LI, Yanbo CHE, Yue ZHOU, Yinqi LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 186-200 doi: 10.1007/s11708-019-0644-9

Abstract: In this paper, interval number optimization and model predictive control are proposed to handle the uncertain-but-boundedFurthermore, the model predictive control which incorporates both forecasts and newly updated informationSimulation results demonstrate that interval number optimization either in day-ahead optimization ormodel predictive control format is robust to the uncertain hot water demand, ambient temperature, andreal-time price of electricity, enabling customers to flexibly adjust electric water heater control

Keywords： electric water heater     load scheduling     interval number optimization     model predictive control     uncertainty    

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Toward a nonlinear control of an AC-DC-PWM converter dedicated to induction heating

Amel HADRI-HAMIDA, S. ZEROUALI, A. ALLAG

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 140-145 doi: 10.1007/s11708-013-0243-0

Abstract: In this paper, a nonlinear control strategy applied to an AC-DC-pulse width modulation (PWM) converterFor robust control of parameter perturbation, integrators are added to the exact feedback control lawThe simulation is provided to verify the validity of the control algorithm.

Keywords： DC-DC converter     AC-DC-pulse width modulation (PWM) converter     induction heating     nonlinear control    

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Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator

Hicham SERHOUD, Djilani BENATTOUS

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 380-387 doi: 10.1007/s11708-013-0252-z

Abstract: the brushless doubly-fed generator (BDFG), the grid connection strategy and maximum energy extraction controlcutting-in grid confirmed the good dynamic performance of grid synchronization and effective power control

Keywords： brushless doubly-fed generator (BDFG)     modeling     grid connection control     back-to-back pulse-width modulation    

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DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 345-354 doi: 10.1007/s11708-014-0330-x

Abstract: This paper proposes an indirect power control of doubly fed induction generator (DFIG) with the rotorconnected to the electric grid through a back-to-back pulse width modulation (PWM) converter for variableAn original control strategy based on a variable structure control theory, also called sliding mode control, is applied to achieve the control of the active and reactive power exchanged between the stator of

Keywords： doubly fed induction generator (DFIG)     wind turbine     back-to-back pulse width modulation (PWM)     DC-linkvoltage     sliding mode control    

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The design of pulse vacuum sterilizer based on fuzzy data fusion

Chen Shuangye

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 69-72

Abstract:

The hardware and software of a pulse vacuum sterilizer are designed inA control strategy based on fuzzy data fusion is also proposed.Finally the simulations and experiments of pulse vacuum disinfection control system are carried out,

Keywords： fuzzy control     microcontroller     sterilizer    

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Impact of siRNA targeting pirh2 on proliferation and cell cycle control of the lung adenocarcinoma cell

SU Yuan, JIN Yang, ZHANG Xiaoju, ZHOU Qiong, BAI Ming, ZHU Liping

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 359-363 doi: 10.1007/s11684-007-0069-4

Abstract: investigate the role of pirh2 (p53-induced RING-H2) protein in the proliferation, apoptosis and cell cycle controlCell cycle control and apoptosis were analyzed by flow cytometry.In addition, the number of G/G phase cells was increased but G/M cells were not affected significantly

Keywords： control     interruption     cytoplasm     number     growth    

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Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 485-492 doi: 10.1007/s11705-019-1831-2

Abstract: A pulse plasma chemical vapor deposition (CVD) technique was developed for improving the growth yieldThe growth yield of the SWNTs could be improved by repetitive short duration pulse plasma CVD, whileDetailed growth dynamics is discussed based on a systematic investigation by changing the pulse parametersThe nucleation can be controlled by adjusting the pulse on/off time ratio and the total processing time

Keywords： single-walled carbon nanotubes     chirality-controlled synthesis     pulse plasma chemical vapor deposition    

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Linking key intervention timings to rapid declining effective reproduction number to quantify lessons

Zhihang Peng, Wenyu Song, Zhongxing Ding, Quanquan Guan, Xu Yang, Qiaoqiao Xu, Xu Wang, Yankai Xia

Frontiers of Medicine 2020, Volume 14, Issue 5,   Pages 623-629 doi: 10.1007/s11684-020-0788-3

Abstract: In this study, the efficiency of prevention and control measures in China, Italy, Iran, South Korea,Results showed that the effective reproduction number( ) in Wuhan, China increased almost exponentiallyin Italy declined at a slower pace than that in China after the implementation of prevention and controlThe in Iran showed a certain decline after the establishment of a national epidemic control command, and an evident stationary phase occurred because the best window period for the prevention and control

Keywords： COVID-19     epidemic control comparison     Chinese experience    

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A modified pulse charging method for lithium-ion batteries by considering stress evolution, charging

Yanfei ZHAO, Bo LU, Yicheng SONG, Junqian ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 294-302 doi: 10.1007/s11709-018-0460-z

Abstract: The stress evolution, total charging time and capacity utilization of pulse charging (PC) method areBy introducing stress control, a modified PC method called the PCCC method, which starts with a PC operation

Keywords： fast charging method     pulse charging     stress evolution     charging time     capacity utilization    

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Characteristics and energy distribution of modulated multi-pulse injection modes based diesel HCCI combustion

LIU Bin, SU Wanhua, WANG Hui, HUANG Haozhong

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 420-427 doi: 10.1007/s11708-007-0061-7

Abstract: in-cylinder diesel homogenous charge compression ignition (HCCI) combustion organized by modulated multi-pulse

Keywords： combustion     compression     homogenous     in-cylinder     modulated multi-pulse    

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High frequency group pulse electrochemical machining

WU Gaoyang, ZHANG Zhijing, ZHANG Weimin, TANG Xinglun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 293-296 doi: 10.1007/s11465-007-0051-5

Abstract: process of machining ultrathin metal structure parts, the signal composition of high frequency group pulsethe influence of frequency to reverse current, and the design of the cathode in high frequency group pulseThe machining quality is obviously improved by increasing the main pulse frequency.High frequency group pulse electrochemical machining can be successfully used in machining micro-parts

Keywords： HGPECM     process     machining quality     passivation     inter-electrode    

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Performance-based seismic assessment of a historical masonry arch bridge: Effect of pulse-like excitations

Frontiers of Structural and Civil Engineering   Pages 855-869 doi: 10.1007/s11709-023-0972-z

Abstract: Fifteen seismic records were considered and categorized as far-field, pulse-like near-field, and non-pulse-likeAccording to the results, pulse-like near-field events are more damaging than non-pulse-like near-field

Keywords： masonry arch bridges     seismic behavior     modal properties     pulse-like records     nonlinear time history    

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Title Author Date Type Operation

Analysis and control of micro-stepping characteristics of ultrasonic motor

Ning CHEN, Jieji ZHENG, Xianliang JIANG, Shixun FAN, Dapeng FAN

Journal Article

A novel soft-switching twin arc pulse MAG welding inverter

WANG Zhenmin, XUE Jiaxiang, WANG Fuguang, HUANG Shisheng

Journal Article

Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Journal Article

MPC-based interval number optimization for electric water heater scheduling in uncertain environments

Jidong WANG, Chenghao LI, Peng LI, Yanbo CHE, Yue ZHOU, Yinqi LI

Journal Article

Toward a nonlinear control of an AC-DC-PWM converter dedicated to induction heating

Amel HADRI-HAMIDA, S. ZEROUALI, A. ALLAG

Journal Article

Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator

Hicham SERHOUD, Djilani BENATTOUS

Journal Article

DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Journal Article

The design of pulse vacuum sterilizer based on fuzzy data fusion

Chen Shuangye

Journal Article

Impact of siRNA targeting pirh2 on proliferation and cell cycle control of the lung adenocarcinoma cell

SU Yuan, JIN Yang, ZHANG Xiaoju, ZHOU Qiong, BAI Ming, ZHU Liping

Journal Article

Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Journal Article

Linking key intervention timings to rapid declining effective reproduction number to quantify lessons

Zhihang Peng, Wenyu Song, Zhongxing Ding, Quanquan Guan, Xu Yang, Qiaoqiao Xu, Xu Wang, Yankai Xia

Journal Article

A modified pulse charging method for lithium-ion batteries by considering stress evolution, charging

Yanfei ZHAO, Bo LU, Yicheng SONG, Junqian ZHANG

Journal Article

Characteristics and energy distribution of modulated multi-pulse injection modes based diesel HCCI combustion

LIU Bin, SU Wanhua, WANG Hui, HUANG Haozhong

Journal Article

High frequency group pulse electrochemical machining

WU Gaoyang, ZHANG Zhijing, ZHANG Weimin, TANG Xinglun

Journal Article

Performance-based seismic assessment of a historical masonry arch bridge: Effect of pulse-like excitations

Journal Article