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gate-recess process combining selective wet-etching and digital wet-etching for InAlAs/InGaAs InP-based HEMTs Article

Ying-hui ZHONG, Shu-xiang SUN, Wen-bin WONG, Hai-li WANG, Xiao-ming LIU, Zhi-yong DUAN, Peng DING, Zhi JIN

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1180-1185 doi: 10.1631/FITEE.1601121

Abstract: A two-step gate-recess process combining high selective wet-etching and non-selective digital wet-etchingtechniques has been proposed for InAlAs/InGaAs InP-based high electron mobility transistors (HEMTs).High etching-selectivity ratio of InGaAs to InAlAs material larger than 100 is achieved by using mixtureSelective wet-etching is validated in the gate-recess process of InAlAs/InGaAs InP-based HEMTs, whichInP-based HEMTs have demonstrated superior extrinsic transconductance and RF characteristics to devices

Keywords： High electron mobility transistors (HEMTs)     Gate-recess     Digital wet-etching     Selective wet-etching    

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Analysis of the kinematic characteristics of a high-speed parallel robot with Schönflies motion: Mobility

Fugui XIE,Xin-Jun LIU

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2,   Pages 135-143 doi: 10.1007/s11465-016-0389-7

Abstract:

This study introduces a high-speed parallel robot with Schönflies motion.This robot exhibits a promising prospect in realizing high-speed pick-and-place manipulation for packagingA line graph method based on Grassmann line geometry is used to investigate the mobility characteristicsThe mobility analysis, inverse kinematics modeling, and singularity analysis conducted in this study

Keywords： parallel robot     mobility     inverse kinematics     singularity     transmission performance    

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Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1068-1

Abstract:

Check-in and survey data are explored to identify personal activity-specific places.

Ways for detecting and moderating sample bias of Weibo check-in data is proposed.

A graphic representation of urban activity intensity in Beijing, China is presented.

The potential application of Weibo check-in data for urban analysis is introduced.

Keywords： Social media     Human mobility     Population bias     Sample reconstruction     Data integration    

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On the potential of iPhone significant location data to characterize individual mobility for air pollution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1542-7

Abstract:

● We evaluated the accuracy of iPhone data in capturing time-activity patterns.

Keywords： Air pollution exposure     Human mobility     iPhone     Significant Location     Smartphone data    

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Conceptual design and kinematic analysis of a novel parallel robot for high-speed pick-and-place operations

Qizhi MENG, Fugui XIE, Xin-Jun LIU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 211-224 doi: 10.1007/s11465-018-0471-4

Abstract: conceptual design, kinematic analysis and workspace identification of a novel four degrees-of-freedom (DOFs) high-speedcharacteristics of the robot’s DOFs, a line graph method based on Grassmann line geometry is adopted in mobility

Keywords： spatial parallel robot     pick-and-place operations     mobility analysis     kinematic modeling     workspace identification    

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A visual graphic approach for mobility analysis of parallel mechanisms

Xu PEI, Jingjun YU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 92-95 doi: 10.1007/s11465-011-0213-3

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Research on Active Handoff Mechanism in Micro-Mobility Protocols

Zhao Aqun

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 50-56

Abstract:

Aiming at the disadvantages of current handoff mechanisms in micro-mobility protocols, active handoffThis mechanism takes advantage of mobility prediction technique to predict the next cell a mobile hostTo guarantee the implementation of active handoff mechanism, a mobility prediction algorithm is proposed

Keywords： micro-mobility protocols     active handoff mechanism     mobility prediction     performance evaluation    

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High Sensitive Electron-Bombarded CCD for Low Light Level Imaging

Zhou Liwei,Liu Guangrong,Gao Zhiyun,Wang Zhongchun

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 56-62

Abstract:

The present paper reviews the recent developments of electron-bombarded charge coupled devices (EBCCDphotocathode are “proximity focusing” or “sharp focusing” directly onto the electronIt has been shown that the EBCCD image tubes offer nearly noiseless gain, high signal to noise ratioFinaly, the present paper shows that these new, high performance devices of EBCCD are in an advantageousposition for many applications in low-light-lev-el surveillance imaging, high energy physics and medical

Keywords： low-light-level imaging     charge-coupled-devices     electron-bombarded    

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Erratum to: On the potential of iPhone significant location data to characterize individual mobility

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1556-1

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PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1369-z

Abstract:

• Pt/CZL exhibits the optimum catalytic performance for HC and NOx elimination.

Keywords： Precious metal-loaded (Ce     Zr     La)O2 catalysts     Oxygen mobility     Catalytic performance    

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precise-acting” strategies for improving anaerobic methanogenesis of organic waste: Insights from the electron

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1508-1

Abstract: Further, we discussed our opinion of methanogenesis process with insights from the electron transfersystem of syntrophic partners and provided potential targeted enhancing strategy for high-efficiencyelectron transfer system.

Keywords： Methanogenesis     Anaerobic digestion     Enhancing strategy     Electron transfer     Organic waste    

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Insights into the electron transfer mechanisms of permanganate activation by carbon nanotube membrane

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1706-0

Abstract: ListItem>

● A CNT filter enabled effective KMnO4 activation via facilitated electron

Keywords： KMnO4     Carbon nanotubes     Non-radical pathway     Electron transfer     Water treatment    

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Simultaneous Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1498-z

Abstract:

• The autotrophic nitrogen removal combining Feammox and Anammox was achieved.

Keywords： Feammox     Anammox     Extracellular electron transfer     Electron shuttle     Activated carbon    

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Mechanisms behind the accelerated extracellular electron transfer in

Feng ZHANG,Shengsong YU,Jie LI,Wenwei LI,Hanqing YU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 531-538 doi: 10.1007/s11783-015-0793-y

Abstract: self-assembled monolayers (SAMs) has been found to be an effective approach to improve the extracellular electron

Keywords： biofilm     extracellular electron transfer (EET)     Geobacter sulfurreducens DL-1     gold     self-assembled    

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Kinetics and mechanisms of reactions for hydrated electron with chlorinated benzenes in aqueous solution

Haixia YUAN,Huxiang PAN,Jin SHI,Hongjing LI,Wenbo DONG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 583-590 doi: 10.1007/s11783-014-0691-8

Abstract: The reactions between chlorinated benzenes (CBzs) and hydrated electron ( ) were investigated by theelectron beam (EB) and laser flash photolysis (LFP) experiments.

Keywords： chlorinated benzenes     hydrated electron     electron beam     laser flash photolysis    

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Title Author Date Type Operation

gate-recess process combining selective wet-etching and digital wet-etching for InAlAs/InGaAs InP-based HEMTs

Ying-hui ZHONG, Shu-xiang SUN, Wen-bin WONG, Hai-li WANG, Xiao-ming LIU, Zhi-yong DUAN, Peng DING, Zhi JIN

Journal Article

Analysis of the kinematic characteristics of a high-speed parallel robot with Schönflies motion: Mobility

Fugui XIE,Xin-Jun LIU

Journal Article

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Journal Article

On the potential of iPhone significant location data to characterize individual mobility for air pollution

Journal Article

Conceptual design and kinematic analysis of a novel parallel robot for high-speed pick-and-place operations

Qizhi MENG, Fugui XIE, Xin-Jun LIU

Journal Article

A visual graphic approach for mobility analysis of parallel mechanisms

Xu PEI, Jingjun YU

Journal Article

Research on Active Handoff Mechanism in Micro-Mobility Protocols

Zhao Aqun

Journal Article

High Sensitive Electron-Bombarded CCD for Low Light Level Imaging

Zhou Liwei,Liu Guangrong,Gao Zhiyun,Wang Zhongchun

Journal Article

Erratum to: On the potential of iPhone significant location data to characterize individual mobility

Journal Article

PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

Journal Article

precise-acting” strategies for improving anaerobic methanogenesis of organic waste: Insights from the electron

Journal Article

Insights into the electron transfer mechanisms of permanganate activation by carbon nanotube membrane

Journal Article

Simultaneous Feammox and anammox process facilitated by activated carbon as an electron shuttle for autotrophic

Journal Article

Mechanisms behind the accelerated extracellular electron transfer in

Feng ZHANG,Shengsong YU,Jie LI,Wenwei LI,Hanqing YU

Journal Article

Kinetics and mechanisms of reactions for hydrated electron with chlorinated benzenes in aqueous solution

Haixia YUAN,Huxiang PAN,Jin SHI,Hongjing LI,Wenbo DONG

Journal Article