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An improved delta-star switching scheme for reactive power saving in three-phase induction motors

P. RAJA,N. KUMARESAN,M. SUBBIAH

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 364-370 doi: 10.1007/s11708-014-0324-8

Abstract: permanently across each phase winding of a three-phase induction motor along with the conventional delta-starswitching, for further saving in VARh at reduced loads on the motor.value for the capacitor and the criteria to be adopted for calculating the power output at which the starto delta switching is to be made are also explained.Compared to using only a single delta connected stator winding or a delta-star switching, the advantages

Keywords： delta-star switching     induction motor     power factor     steady-state analysis    

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Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 287-291 doi: 10.1007/s11465-011-0230-2

Abstract: differential model is constructed for the coupled hysteretic dynamics via modeling the orientation switchingHysteresis loops associated with stress induced polarization switching and butterfly-shaped behaviorThe effects of mechanical loadings on the electrically induced switching are numerically investigated, as well as the mechanically-induced switching with various bias electric fields.

Keywords： differential model     state space     electromechanical switching     butterfly effects     hysteresis    

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Toward deep impacts of BIM on education

Žiga TURK, Andreja ISTENIČ STARČIČ

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 81-88 doi: 10.1007/s42524-019-0035-2

Abstract: Building information models (BIM) provide a way to represent buildings and communicate about them. In teaching engineering, we also need representations of buildings and are communicating knowledge about them. While teaching engineering we refer to the very same real-world objects that have an explicit conceptualization in BIM. This explicit conceptualization did not exist in the age when design communication relied on drawings and documents. The question that this paper asks is this: due to BIM, communication in the industry has changed. Should communication of engineering knowledge – teaching – change as well and how? While much has been written about teaching BIM and incorporating BIM into the curricula, this paper is exploring the general impact of BIM on engineering education. It grounds earlier work (Turk, 2018) on insights from pedagogy. Five scenarios of the interplay between BIM-influenced engineering communication and teaching are presented. The paper argues that ignoring BIM may create a cognitive dissonance between academic learning and industrial work. We are finding that the impact of BIM is twofold: vertically there is a need to establish a reference between knowledge concepts (in teaching building) and information objects (in building information models). Horizontally BIM is an integration technology that allows for a more holistic design and planning. Both the language of individual courses as well as cross references and synergies among courses should change. A “T” style structure of the courses around BIM is proposed as a basis for integrated curriculum. Pedagogical approaches based on deep learning, model based learning and project based learning are suggested.

Keywords： engineering education     building information modelling     engineering communication     curriculum development    

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Energy internet in the Yangtze River Delta: opportunities, challenges, and suggestions

Zheng YAN, Jiayi HU

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 484-492 doi: 10.1007/s11708-018-0600-0

Abstract: review, the opportunities and the challenges posed to developing energy internet in the Yangtze River DeltaThen the framework of energy internet in the Yangtze River Delta is constructed, according to which specific

Keywords： energy internet     opportunities     challenges     suggestions     the Yangtze River Delta    

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Experimental investigation of a novel micro gas turbine with flexible switching function for distributed

Xiaojing LV, Weilun ZENG, Xiaoyi DING, Yiwu WENG, Shilie WENG

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 790-800 doi: 10.1007/s11708-020-0691-2

Abstract: Additionally, the flexible switching between the power generated by the MGT and the power grid is alsoThis system also can realize flexibly switching from the start motor mode to the generator mode, andfrom grid-connected mode to off-grid mode, because the innovative multi-state switching control system

Keywords： gas turbine     flexible switching system     control system     distributed power system     emission test    

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Long-term trends of fine particulate matter and chemical composition in the Pearl River Delta Economic

Xuemei WANG,Weihua CHEN,Duohong CHEN,Zhiyong WU,Qi Fan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 53-62 doi: 10.1007/s11783-014-0728-z

Abstract: paper analyzes PM data from various published sources for the years 2000 to 2010 in the Pearl River Delta

Keywords： long-term trends     fine particulate matter     chemical components     Pearl River Delta Economic Zone (PRDEZ)    

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The Effect of “Star-Bombs” Undertaking on the Social Development of China

Miao Dongsheng

Strategic Study of CAE 2004, Volume 6, Issue 7,   Pages 14-20

Abstract:

This paper holds that “Star-Bombs” undertaking has influenced the social development of

Keywords： “Star-Bombs” undertaking     space science and technology     exploiting outer space     game in common wins    

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attribution for mercury deposition with an updated atmospheric mercury emission inventory in the Pearl River Delta

Jiajun Liu, Long Wang, Yun Zhu, Che-Jen Lin, Carey Jang, Shuxiao Wang, Jia Xing, Bin Yu, Hui Xu, Yuzhou Pan

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1087-6

Abstract: p>

Estimated anthropogenic Hg emission was 11.9 tons in Pearl River Delta

Keywords： Emission inventory     Mercury deposition     Pearl River Delta (PRD)     Source attribution     Control strategy    

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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: process, a novel double wire pulse MAG welding inverter integrated with technologies, such as soft-switching

Keywords： high-speed     control     computer     experiment indicate     platform    

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China's First ATM Switching System and its Networking

Lei Zhenming

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 53-55

Abstract:

The design and implementation of the first ATM Switching system of China (Named BTC -9500) was startedThe scheme of switching both ATM cells and IP datagram within a single switching fabric was proposedA model of new generation platform that supports multi-service switching is given.

Keywords： telecommunications     switching     ATM    

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Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China

Lyumeng Ye,Xuemei Wang,Shaofeng Fan,Weihua Chen,Ming Chang,Shengzhen Zhou,Zhiyong Wu,Qi Fan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0887-1

Abstract: WRF-Chem was used to study a serious ozone episode in fall over the Pearl River Delta (PRD).

Keywords： Ozone     Pearl River Delta (PRD)     Sensitivity regime     Photochemical indicator     Threshold levels    

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Space view of the decadal variation for typical air pollutants in the Pearl River Delta (PRD) region

Zifeng WANG, Min SHAO, Liangfu CHEN, Minghui TAO, Liuju ZHONG, Duohong CHEN, Meng FAN, Yang WANG, Xinhui WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0853-y

Abstract: The Pearl River Delta (PRD) is one of the most industrialized, urbanized and populated regions in China

Keywords： The Pearl River Delta (PRD)     Satellite monitoring     Regional air quality     Long-term trend     HCHO    

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Response of organic aerosol characteristics to emission reduction in Yangtze River Delta region

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1714-0

Abstract:

● The emission reduction causes significant change in organic aerosol composition.

Keywords： Emission control     Secondary organic aerosol     Atmospheric oxidizing capacity     Holiday effects     COVID-19 lockdown    

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An artificial intelligence enhanced star identification algorithm

Hao Wang, Zhi-yuan Wang, Ben-dong Wang, Zhuo-qun Yu, Zhong-he Jin, John L. Crassidis,roger@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 11,   Pages 1535-1670 doi: 10.1631/FITEE.1900590

Abstract: A model based on Vgg16 is used in the artificial intelligence algorithm to classify star images.

Keywords： 星敏感器；姿态失锁；星图识别；卷积神经网络    

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A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4

Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1070-7

Abstract:

• A new pulsed switching peroxi-coagulation (PSPC) system was developed

Keywords： Pulsed switching peroxi-coagulation system     Energy consumption     Hydroxyl radical production     2     4- Dichlorophenoxyacetic    

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Title Author Date Type Operation

An improved delta-star switching scheme for reactive power saving in three-phase induction motors

P. RAJA,N. KUMARESAN,M. SUBBIAH

Journal Article

Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Journal Article

Toward deep impacts of BIM on education

Žiga TURK, Andreja ISTENIČ STARČIČ

Journal Article

Energy internet in the Yangtze River Delta: opportunities, challenges, and suggestions

Zheng YAN, Jiayi HU

Journal Article

Experimental investigation of a novel micro gas turbine with flexible switching function for distributed

Xiaojing LV, Weilun ZENG, Xiaoyi DING, Yiwu WENG, Shilie WENG

Journal Article

Long-term trends of fine particulate matter and chemical composition in the Pearl River Delta Economic

Xuemei WANG,Weihua CHEN,Duohong CHEN,Zhiyong WU,Qi Fan

Journal Article

The Effect of “Star-Bombs” Undertaking on the Social Development of China

Miao Dongsheng

Journal Article

attribution for mercury deposition with an updated atmospheric mercury emission inventory in the Pearl River Delta

Jiajun Liu, Long Wang, Yun Zhu, Che-Jen Lin, Carey Jang, Shuxiao Wang, Jia Xing, Bin Yu, Hui Xu, Yuzhou Pan

Journal Article

A novel soft-switching twin arc pulse MAG welding inverter

WANG Zhenmin, XUE Jiaxiang, WANG Fuguang, HUANG Shisheng

Journal Article

China's First ATM Switching System and its Networking

Lei Zhenming

Journal Article

Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China

Lyumeng Ye,Xuemei Wang,Shaofeng Fan,Weihua Chen,Ming Chang,Shengzhen Zhou,Zhiyong Wu,Qi Fan

Journal Article

Space view of the decadal variation for typical air pollutants in the Pearl River Delta (PRD) region

Zifeng WANG, Min SHAO, Liangfu CHEN, Minghui TAO, Liuju ZHONG, Duohong CHEN, Meng FAN, Yang WANG, Xinhui WANG

Journal Article

Response of organic aerosol characteristics to emission reduction in Yangtze River Delta region

Journal Article

An artificial intelligence enhanced star identification algorithm

Hao Wang, Zhi-yuan Wang, Ben-dong Wang, Zhuo-qun Yu, Zhong-he Jin, John L. Crassidis,roger@zju.edu.cn

Journal Article

A pulsed switching peroxi-coagulation process to control hydroxyl radical production and to enhance 2,4

Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang

Journal Article