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Hongchen Chen, Haoshen Zhu, Liang Wu, Wenquan Che, Quan Xue,hongdoublechen@gmail.com,zhuhs@scut.edu.cn,wuliang@cuhk.edu.cn,eewqche@scut.edu.cn,eeqxue@scut.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4, Pages 586-598 doi: 10.1631/FITEE.2000510
Keywords： CMOS；跨导提升技术；低噪声放大器；变压器；共栅级
Development of 8-inch Key Processes for Insulated-Gate Bipolar Transistor Article
Guoyou Liu,Rongjun Ding,Haihui Luo
Engineering 2015, Volume 1, Issue 3, Pages 361-366 doi: 10.15302/J-ENG-2015043
Based on the construction of the 8-inch fabrication line, advanced process technology of 8-inch wafer, as well as the fourth-generation high-voltage double-diffused metal-oxide semiconductor (DMOS+) insulated-gate bipolar transistor (IGBT) technology and the fifth-generation trench gate IGBT technology, have been developed, realizing a great-leap forward technological development for the manufacturing of high-voltage IGBT from 6-inch to 8-inch. The 1600 A/1.7 kV and 1500 A/3.3 kV IGBT modules have been successfully fabricated, qualified, and applied in rail transportation traction system.
Keywords： insulated-gate bipolar transistor (IGBT) high power density trench gate 8-inch rail transportation
Application of the Chemical-Looping Concept for Azoetrope Separation Article
Xin Gao, Xueli Geng
Engineering 2021, Volume 7, Issue 1, Pages 84-93 doi: 10.1016/j.eng.2020.06.022
The need for the separation of azeotropic mixtures for the production of high-end chemicals and resource recovery has spurred significant research into the development of new separation methods in the chemical industry. In this paper, a green and sustainable method for azeotrope separation is proposed based on a chemical-looping concept with the help of reversible-reaction-assisted distillation. The central concept in the chemical-looping separation (CLS) method is the selection of a reactant that can react with the azeotrope components and can also be recycled by the reverse reaction to close the loop and achieve cyclic azeotrope separation. This paper aims to provide an informative perspective on the fundamental theory and applications of the CLS method based on the separation principle, reactant selection, and case analysis, for example, the separation of alkenes, alkane, aromatics, and polyol products. In summary, we provide guidance and references for chemical separation process intensification in product refining and separation from azeotropic systems for the development of a more sustainable chemical industry.
Keywords： Chemical-looping Azeotropes Reactive distillation Reactants screening Process intensification
Planar dual-polarized millimeter-wave shared-aperture array antenna with high band isolation Correspondence
Yuyan CAO, Zijun GUO, Zhangcheng HAO
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 10, Pages 1568-1578 doi: 10.1631/FITEE.2200122
A planar millimeter-wave shared-aperture array antenna is proposed and designed in this paper. By composing the substrate integrated waveguide (SIW) and the stripline, the K-band antenna is embedded inside the Ka-band antenna to achieve a smaller size and a low profile by sharing an aperture. The Ka-band antenna radiates through the parallel slot pairs on the surface of the SIW cavities with horizontal polarization, while the K-band antenna radiates through the butterfly-shaped slots with vertical polarization, which are also designed on the surface. Then the two array antennas can radiate by sharing a common aperture with high isolation. To verify this idea, a prototype of an 8×8 shared-aperture array antenna has been designed with center frequencies of 19 and 30 GHz and fabricated using multilayer printed circuit board (PCB) technology. The measurement results show that the −10 dB impedance bandwidths in the K- and Ka-bands are 7.73% and >20%, and the corresponding isolations are higher than 60 and 44 dB, respectively. The proposed shared-aperture antenna has a small footprint, a low profile, and high isolation, and is a promising candidate to design compact millimeterwave wireless systems.
Keywords： 共口径；平面天线；高隔离度；基片集成波导
Development Strategy for Integrated Rice Field Aquaculture
Ma Dawen,Qian Jing,Liu Jiashou and Gui Jianfang
Strategic Study of CAE 2016, Volume 18, Issue 3, Pages 96-100 doi: 10.15302/J-SSCAE-2016.03.016
Paddy field fish culture is a traditional integrated aquaculture method. During the past few years, many new integrated rice-fish aquaculture modes focusing on high-valued aquatic species have been adopted and resulted in significant economic, social and ecological results. In order to extend the experiences of integrated rice-fish aquaculture, the author presented two typical approaches for integrated rice-fish aquaculture in Hubei Province. The crayfish-rice co-culture has an average net profit of over 3 000 RMB for per acre, which is 3~4 times the profit of single rice planting. The turtle-crayfish-fish-rice aquaculture has an average net profit of nearly 10 000 planting. This paper also puts forward some suggestions for strengthening the industry, including enlarging planting and farming space, promoting industrial convergence and strengthening policy support.
Keywords： paddy field integrated rice field aquaculture crayfish-rice co-culture turtle-crayfish-fish-rice co-culture
High-Quality Development of China Railway Express Based on Win–Win Co-construction
Chen Yun, Lu Chunfang, Sheng Liming, Liu Yanhong
Strategic Study of CAE 2020, Volume 22, Issue 3, Pages 125-131 doi: 10.15302/J-SSCAE-2020.03.019
This paper expounds upon the economic function definition of China Railway Express in the new era and sorts out its current operating situation and major risks and challenges. The main influencing factors of China Railway Express toward high-quality development are analyzed, such as the trade environment and infrastructure construction along the line, international multilateral communication and cooperation, goods supply support and logistics service level, as well as market-oriented operation. The practice of China Railway Express toward high-quality development is deeply explored based on win–win co-construction, and three development paths are presented: to develop in the direction of growing support from hinterland areas, increasing importance of hubs and nodes, and improving route network; to implement the comprehensive development strategy of “train transportation + logistics hub construction+ supporting service capacity” ; and to build a multi-value chain of international trade, industrial upgrading, and financial services. Finally, this paper proposes safeguard measures from four aspects, namely strengthening coordination and cooperation and actively promoting customs clearance convenience; optimizing transportation organization and providing whole-process logistics services; improving price mechanism to attract multi-channel capital investment; promoting platform construction and strengthening talents as well as scientific and technological innovation, in order to provide reference for the boosting of the high-quality development of China Railway Express.
Keywords： win–win co-construction，China Railway Express，strategy of high-quality development
Yang WANG, Xiangliang JIN, Jian YANG, Feng YAN, Yujie LIU, Yan PENG, Jun LUO, Jun YANG,jinxl@hunnu.edu.cn,pengyan@shu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 1, Pages 158-170 doi: 10.1631/FITEE.2000504
Keywords： Electric breakdown Semiconductor device reliability CMOS technology
The Physical Precursors for the Ms 8.7 and Ms 8.5 Earthquakes in Indian Ocean
Sun Wei,Sun Xiaoming
Strategic Study of CAE 2008, Volume 10, Issue 2, Pages 14-25
The precursors-the gestation process and the signal of impending earthquake of the Indian Ocean Earthquake of Ms 8-7 are recorded,with a serious of specially made monitoring instruments,including instruments for stress,resonance,tilt and earth potential.The recordings show that there are great differences for the stress in crust between before and after the eart hquake of Ms 8-7 and that of Ms 8-5. This fact indicates the essential distinction regarding to the formation of these two earthquakes.The causation of the tsunami is analyzed.The sign of underground material migration is also found in the gestation process of Ms 8-7 earthquake.
Keywords： Ms 8-7 and Ms 8-5 earthquake in Indian Ocean earthquqke precursor signal of impending earthquake tsunami underground material migration
Featurematching using quasi-conformalmaps Article
Chun-xue WANG, Li-gang LIU
Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5, Pages 644-657 doi: 10.1631/FITEE.1500411
Keywords： Feature correspondence Quasi-conformal map Splitting method
Influence of motor cable on common-mode currents in an inverter-fed motor drive system None
Peng-kang XIE, Jia-zheng LU, Guo-zhu CHEN, Heng-lin CHEN
Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2, Pages 273-284 doi: 10.1631/FITEE.1601518
Keywords： Common-mode currents Cable model Motor drive system Parameter extraction
Study on Co-Pyrolysis Characteristics of Biomass Components and Polyethylene by TG-MS
Fan Honggang,Gu Jing,Wang Yazhuo,Yuan Haoran,He Mingyang, Sun Fuan
Strategic Study of CAE 2018, Volume 20, Issue 3, Pages 102-108 doi: 10.15302/J-SSCAE-2018.03.015
In order to explore the synergetic effect and the variation of small molecule gas products in the co-pyrolysis process of main components of biomass with plastics , a thermogravimetry-mass spectrum (TG-MS) method was used to study the co-pyrolysis characteristics of cellulose, xylan, lignin with polyethylene. The blending ratio of each co-pyrolysis sample was 1∶1(w/w). The weight loss intervals of the single components and the mixed components were obtained by the TG experiment, and the theoretical and experimental values were obtained by fitting the TG data of the individual components. It can be confirmed that the synergetic effect exists in the process of co-pyrolysis , and this effect promotes the decomposition of the samples. MS experimental data shows that the presence of polyethylene could facilitate the decomposition of the biomass components and increase the yield of small molecule gas products during the process of co-pyrolysis. The production of H2O and CO2 in the small molecular products in the pyrolysis of cellulose with polyethylene was increased. The xylan and polyethylene will promote the decomposition of each other during the co-pyrolysis process, and the yield of H2O, CH4, H2 and C2H4 will be raised. The co-pyrolysis between lignin and polyethylene could promote the the yield of CO, C2H4 and H2.
Keywords： cellulose xylan lignin polyethylene co-pyrolysis
First Stage Recovery News & Focus
Lance A. Davis
Engineering 2016, Volume 2, Issue 2, Pages 152-153 doi: 10.1016/J.ENG.2016.02.007
Comprehensive evaluation factor of optoelectronic properties for transparent conductive metallic mesh films Research Articles
Yilei Zhang, Jinxuan Cao, Zhengang Lu, Heyan Wang, Jiubin Tan,luzhengang@hit.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 11, Pages 1532-1540 doi: 10.1631/FITEE.2000690
Keywords： 金属网栅；TOPSIS法；熵权法；综合评价因子；透明导电膜
Durability analysis of B grade steel side-frame based on the PFM method
Li Wei and Wang Ping
Strategic Study of CAE 2011, Volume 13, Issue 1, Pages 56-61
Based on probabilistic fracture mechanics, the simulated durability test is performed to study the details with angle of side-frame of wagon bogie made of B grade steel. A new general computational method is proposed to evaluate the EIFS(equivalent initial flaw size) distribution, and the probabilistic crack exceedance model is established. The structural damage value is evaluated from the viewpoints of the survival probability P, stress level σ, crack initiation time t and economic maintenance limit ae, and the corresponding economic life is predicted according to the actual measured stress spectrum. As a result, the TTCI(time to crack initiation) can be better characterized by the three-parameter Weibull distribution, and the validity of general EIFS distribution parameters obtained by the new computational method are verified by the K-S checkout. Furthermore, the structural damage value is quantitatively evaluated by the probabilistic crack exceedance model.The predicted economic life tends to increase with the increasing of the crack exceedance probability, and the rationality and validity of the new computational method and probabilistic model are proved.
Keywords： durability fatigue B grade steel crack
Xiao-Dong Mo, Xiao-Hui Zhang, Lan-Ping Xu, Yu Wang, Chen-Hua Yan, Huan Chen, Yu-Hong Chen, Wei Han, Feng-Rong Wang, Jing-Zhi Wang, Kai-Yan Liu, Xiao-Jun Huang
Engineering 2021, Volume 7, Issue 2, Pages 162-169 doi: 10.1016/j.eng.2020.12.005
We aimed to develop a disease risk comorbidity index (DRCI) based on disease risk index (DRI) and Hematopoietic Cell Transplantation-Specific Comorbidity Index (HCT-CI) in patients receiving haploidentical hematopoietic stem cell transplantation (haplo-HSCT). We identified the prognostic factors of disease-free survival (DFS) in a training subset (n = 593), then assigned a weighted score using these factors to the remaining patients (validation subset; n = 296). The multivariable model identified two independent predictors of DFS: DRI and HCT-CI before transplantation. In this scoring system, we assigned a weighted score of 2 to very high-risk DRI, and assigned a weighted score of 1 to high-risk DRI and intermediate- and high-risk HCT-CI (i.e., haplo-DRCI). In the validation cohort, the three-year DFS rate was 65.2% (95% confidence interval (CI), 58.2%–72.2%), 55.8% (95% CI, 44.9%–66.7%), and 32.0% (95% CI, 5.8%–58.2%) for the low-, intermediate-, and high-risk group, respectively (P = 0.005). Haplo-DRCI can also predict DFS in disease-specific subgroups, particularly in acute leukemia patients. Increasing score was also significantly predictive of increased relapse, increased non-relapse mortality (NRM), decreased DFS, and decreased overall survival (OS) in an independent historical cohort (n = 526). These data confirmed that haplo-DRCI could effectively risk stratify haplo-HSCT recipients and provide a tool to better predict who will best benefit from haplo-HSCT.
Keywords： Disease risk index Disease risk comorbidity index Hematopoietic cell transplantation comorbidity index Hematopoietic stem cell transplantation Haploidentical
Title Author Date Type Operation
A 9.8–30.1 GHz CMOS low-noise amplifier with a 3.2-dB noise figure using inductor- and transformer-based
Hongchen Chen, Haoshen Zhu, Liang Wu, Wenquan Che, Quan Xue,hongdoublechen@gmail.com,zhuhs@scut.edu.cn,wuliang@cuhk.edu.cn,eewqche@scut.edu.cn,eeqxue@scut.edu.cn
Journal Article
Development of 8-inch Key Processes for Insulated-Gate Bipolar Transistor
Guoyou Liu,Rongjun Ding,Haihui Luo
Journal Article
Application of the Chemical-Looping Concept for Azoetrope Separation
Xin Gao, Xueli Geng
Journal Article
Planar dual-polarized millimeter-wave shared-aperture array antenna with high band isolation
Yuyan CAO, Zijun GUO, Zhangcheng HAO
Journal Article
Development Strategy for Integrated Rice Field Aquaculture
Ma Dawen,Qian Jing,Liu Jiashou and Gui Jianfang
Journal Article
High-Quality Development of China Railway Express Based on Win–Win Co-construction
Chen Yun, Lu Chunfang, Sheng Liming, Liu Yanhong
Journal Article
Design and optimization of a gate-controlled dual direction electro-static discharge device for an industry-level fluorescent optical fiber temperature sensor
Yang WANG, Xiangliang JIN, Jian YANG, Feng YAN, Yujie LIU, Yan PENG, Jun LUO, Jun YANG,jinxl@hunnu.edu.cn,pengyan@shu.edu.cn
Journal Article
The Physical Precursors for the Ms 8.7 and Ms 8.5 Earthquakes in Indian Ocean
Sun Wei,Sun Xiaoming
Journal Article
Influence of motor cable on common-mode currents in an inverter-fed motor drive system
Peng-kang XIE, Jia-zheng LU, Guo-zhu CHEN, Heng-lin CHEN
Journal Article
Study on Co-Pyrolysis Characteristics of Biomass Components and Polyethylene by TG-MS
Fan Honggang,Gu Jing,Wang Yazhuo,Yuan Haoran,He Mingyang, Sun Fuan
Journal Article
Comprehensive evaluation factor of optoelectronic properties for transparent conductive metallic mesh films
Yilei Zhang, Jinxuan Cao, Zhengang Lu, Heyan Wang, Jiubin Tan,luzhengang@hit.edu.cn
Journal Article
Durability analysis of B grade steel side-frame based on the PFM method
Li Wei and Wang Ping
Journal Article
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