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2016 13th IEEE International Conference on Solid-State and Integrated Circuit technology (ICSICT)

作者： Chunmei Hu Yankang du Jianjun Chen Yaqing Chi Haiyan Chen College of Computer National University of Defence Technology China National Digital Switching System Engineering & Technology R&D Center

ISBN: (纸本)9781467397209

As the technology scales down, the single-event transient(SET) has become a great concern for the reliability of integrated circuits(ICs). A novel time redundant flip-flop structure is proposed to detect and correct the SET pulse. The most advantage of this structure is that it has very little setup and hold time overhead and the architecture need not be modified to recover the system. HSPICE simulation is adopted verify the validation of this structure. Finally, we give the use of this flip-flop in the pipeline based architecture.

关键词： simulation Novel Time redundant Flip-Flop Structure to Attenuate the Single-Event Transient

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Case retrieval Strategy of Turning Process Based on Grey relational Analysis

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Computer Modeling in engineering & Sciences 2024年第2期138卷 1663-1678页

作者： Jianfeng Zhao Yunliang Huo Ji Xiong Junbo Liu Zhixing Guo Qingxian Li School of Mechanical Engineering Sichuan UniversityChengdu610065China Sichuan Engineering Technology Research Center of Intelligent Design and Service for Cutting Tools Yibin R&D Park of Sichuan UniversityYibin644000China Department of R&D Pengxi Heye High-Tech Co.Ltd.Suining629000China

To solve the problem of long response time when users obtain suitable cutting parameters through the Internet based platform,a case-based reasoning framework is ***,a Hamming distance and Euclidean distance combined method is designed to measure the similarity of case features which have both numeric and category *** addition,AHP(Analytic Hierarchy Process)and entropy weight method are integrated to provide features weight,where both user preferences and comprehensive impact of the index have been *** relation analysis is used to obtain the similarity of a new problem and alternative ***,a platform is also developed on Visual Studio 2015,and a case study is demonstrated to verify the practicality and efficiency of the proposed *** method can obtain cutting parameters which is suitable without iterative *** with the traditional PSO(Particle swarm optimization algorithm)and GA(Genetic algorithm),it can obtain faster response *** method can provide ideas for selecting processing parameters in industrial *** guaranteeing the characteristic information is similar,this approach can select processing parameters which is the most appropriate for the production process and a lot of time can be saved.

关键词： CBr turning process grey relation AHP entropy weight

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Axial Assembled Correspondence Network for Few-Shot Semantic Segmentation

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IEEE/CAA Journal of Automatica Sinica 2023年第3期10卷 711-721页

作者： Yu Liu Bin Jiang Jiaming Xu School of Automation Science and Engineering South China University of TechnologyGuangzhou 510640 R&D Center of Precision Electronic Manufacturing Technology Guangzhou Institute of Modern Industrial Technologyand also with the High Performance Motor and Intelligent Control Engineering Technology Research Center of Guangdong ProvinceGuangzhou 511458China School of Automation Science and Engineering South China University of TechnologyGuangzhou 510640China IEEE

Few-shot semantic segmentation aims at training a model that can segment novel classes in a query image with only a few densely annotated support *** remains a challenge because of large intra-class variations between the support and query *** approaches utilize 4d convolutions to mine semantic correspondence between the support and query ***,they still suffer from heavy computation,sparse correspondence,and large *** propose axial assembled correspondence network(AACNet)to alleviate these *** key point of AACNet is the proposed axial assembled 4d kernel,which constructs the basic block for semantic correspondence encoder(SCE).Furthermore,we propose the deblurring equations to provide more robust correspondence for the aforementioned SCE and design a novel fusion module to mix correspondences in a learnable *** on PASCAL-5~i reveal that our AACNet achieves a mean intersection-over-union score of 65.9%for 1-shot segmentation and 70.6%for 5-shot segmentation,surpassing the state-of-the-art method by 5.8%and 5.0%respectively.

关键词： Artificial intelligence computer vision deep convolutional neural network few-shot semantic segmentation

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CFd Simulation of the Two-Phase Flow in a Novel Cooking Tank for Ethanol Production

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Transactions of Tianjin University 2018年第3期24卷 212-223页

作者： Cheng Liu Yang Lu Yan Zhou Xuanwen Zhu Minhua Zhang Zhongfeng Geng Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University R&D Center for Petrochemical TechnologyTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China

As a key piece of equipment in bioethanol production, cooking tank is usually used to ensure the uniformity of liquefaction. In this paper, we propose a novel type of cooking tank to ensure a type of starch slurry flow known as a quasi-plug flow in a large-scale process. In the analyses of flow field, we used computational fl uid dynamics(CFd). To simulate the liquid–solid two-phase flow, we chose a Euler–Euler model based on particle dynamics. We investigated the eff ects of several key structural parameters on the flow field. The results show that for a tank with 12,800 mm in height and 1000 mm in diameter, the optimized inlet tube angle and inlet tube diameter range from 0° to 45° and 0.125 to 0.15 d(diameter of cooking tank), respectively. We determined the optimum cone mouth diameter at the exit and its distance to the bottom to range from 0.18 to 0.30 d and 0.045 to 0.070 d, respectively. The analysis results suggest that the tank performs well when its aspect ratio ranges from 9.62 to 12.8. Our findings provide a theoretical basis for designing and optimizing the cooking tank.

关键词： Cooking tank Computational fluid dynamics Euler-Euler model Particle dynamics Structural optimization

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Heat transfer characterization and improvement in an external catalyst cooler fluidized bed

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Particuology 2021年第3期19卷 103-112页

作者： Jiantao Li Xiuying Yao Lu Liu Xudong Zhong Chunxi Lu State Key Laboratory of Heavy Oil China University of Petroleum(Beijing)Beijing 102249China Luoyang R&D Center of Technology SINOPEC Engineering(Group)Co.Ltd.Luoyang 471003China

Gas-solid fluidized beds have been widely used in heat transfer processes,and so there have been many studies focused on increasing heat transfer in such *** the present work,a pilot scale cold mode experimental rig was constructed to assess the effects of hydrodynamics on bed-to-wall heat transfer and to investigate various means of enhancing heat transfer in a dense gas-solid fluidized bed with external solid *** experimental results show that heat transfer in the dense region played a dominant role in total bed-to-wall heat transfer,accounting for more than 88%of the total heat transfer *** transfer could be lowered as a result of solids bypass that occurred because of external solids circulation,but this effect was weakened by the radial mixing of *** heat transfer characteristics identified in this study indicate that a specially designed baffle can be used to enhance bed-to-wall heat *** installing such baffles in the fluidized bed test structure,a 70%increase in the total heat transfer coefficient was obtained.

关键词： Gas-solid fluidized bed Heat transfer Hydrodynamics Baffles Intensification

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Synthesis of the 3d porous carbon-manganese oxide (3d-C@MnO) nanocomposite and its supercapacitor behavior study

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Progress in Natural Science:Materials International 2019年第4期29卷 410-415页

作者： rakesh K.Sahoo Arya das Saurabh Singh damin Lee Saroj K.Singh rajaram S.Mane Je Moon Yun Kwang Ho Kim Global Frontier R&D Center for Hybrid Interface Materials Pusan National University School of Materials Science & Engineering Pusan National University CSIR-Institute of Minerals and Materials Technology

A 3d porous carbon-manganese oxide（3d-C@MnO） nanocomposite is successfully synthesized via a thermal plasma deposition *** chemical bonds and compositions,phase structures,surface morphologies,*** as-obtained 3d-C@MnO nanocomposite were characterized by the various equipment,such as X-ray diffractometer,X-ray photoelectron spectroscopy,and electron *** electrochemical performances of the 3d-C@MnO nanocomposite electrode showed a specific capacitance of 780 Fg;at a current density of 2Ag;and a capacitance retention rate of 99% after 5000 charge-discharge cycles at a high current density of 10Ag;.These excellent capacitive performances may be attributed to the encapsulation of MnO nanoparticles by porous carbon sheets in the 3d-C@MnO nanocomposite *** is believed that the carbon-encapsulated MnO nanoparticles can be protected from a volume deformation during the charge adsorption/desorption cycle and can be electrically improved by the encapsulated carbon sheets,resulting in better overall capacitive *** addition,this study also demonstrates the practical applicability by assembling a supercapacitor using the as-obtained 3d-C@MnO nanocomposite to glow a light emitting diode.

关键词： Nanocomposites 3d-carbon Manganese monoxide Cathode material Supercapacitor

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A Line Complex-Based Evolutionary Algorithm for Many-Objective Optimization

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IEEE/CAA Journal of Automatica Sinica 2023年第5期10卷 1150-1167页

作者： Liang Zhang Qi Kang Qi deng Luyuan Xu Qidi Wu the Department of Control Science and Engineering Tongji UniversityShanghai 201804 the Jiangsu Province Support Software Engineering R&D Center for Modern Information Technology Application in Enterprise Suzhou 215104China the Shanghai Institute of Intelligent Science and Technology Tongji UniversityShanghai 200092China

In solving many-objective optimization problems(MaO Ps),existing nondominated sorting-based multi-objective evolutionary algorithms suffer from the fast loss of selection *** candidate solutions become nondominated during the evolutionary process,thus leading to the failure of producing offspring toward Pareto-optimal front with *** we find a more effective way to select nondominated solutions and resolve this issue?To answer this critical question,this work proposes to evolve solutions through line complex rather than solution points in Euclidean ***,Plücker coordinates are used to project solution points to line complex composed of position vectors and momentum *** position vectors of the solution points,momentum vectors are used to extend the comparability of nondominated solutions and enhance selection ***,a new distance function designed for high-dimensional space is proposed to replace Euclidean distance as a more effective distancebased *** on them,a novel many-objective evolutionary algorithm(MaOEA)is proposed by integrating a line complex-based environmental selection strategy into the NSGAⅢ*** proposed algorithm is compared with the state of the art on widely used benchmark problems with up to 15 *** results demonstrate its superior competitiveness in solving MaOPs.

关键词： Environmental selection line complex many-objective optimization problems(MaOPs) Plücker coordinate

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Facile strategy for high-efficiency purification and regeneration of graphite anodes from spent lithium-ion batteries

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Chemical engineering Journal 2025年 516卷

作者： Cho, San-Seong Park, Sang-Hoon Kang, Joonhee Lee, Seung-Min Park, Junhyuck Choi, Sinho Kim, Hyun-Kyung Hong, Ji-Eun Han, Yu-Jin Advanced Energy Technology R&D Center Korea Institute of Energy Research Ulsan44776 Cuba Department of Nanoenergy Engineering Pusan National University Busan46241 Cuba Department of Materials Science and Engineering Kangwon National University Chuncheon24341 Cuba

The rapid expansion of the global electric vehicle market has driven a growing demand for battery recycling industries. Although significant advancements have been achieved in the recycling of cathode materials from spent LIBs, the regeneration of graphite anodes remains challenging due to technical constraints. However, considering the critical role of graphite and its substantial influence on battery cost and weight, efficient recycling is imperative for ensuring the sustainable development of next-generation batteries. This study proposes a commercially viable strategy for the regeneration of high-purity, battery-grade graphite from spent LIBs through a scalable multi-step recycling process. The process involves ultrasonication-assisted gravity separation for initial impurity removal, followed by controlled heat treatment and acid leaching to eliminate residual metallic impurities, and concludes with surface modification via pyrolytic carbon coating to restore structural integrity. The regenerated graphite exhibits a significant reduction in impurities and a restoration of electrochemical performance to levels comparable with those of commercial graphite. By enhancing the quality and value recovery of spent graphite, this study advances sustainable practices in the LIB recycling industry, supporting a more resource-efficient and environmentally sustainable future. © 2025

关键词： recycling

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Weak Signal Acquisition Performance for different Pilot Channel design Options

Weak Signal Acquisition Performance for Different Pilot Chan...

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第五届中国卫星导航学术年会

作者： Liu Yingxiang Chen Huaming Lv Zhicheng Wang Feixue Satellite Navigation and Positioning R&D Center School of Electronic Science and Engineering National Univ. of Defense Technology

ISBN: (纸本)9783642547423

Pilot Channel without navigation message modulation is added in next generation GNSS for enhancing the acquisition performance in challenge environment. The pre‐detection integration time of pilot channel is potential to exceed the bit width, so the receiver could obtain better acquisition sensibility. However, the benefit from pilot channel has not been thoroughly analyzed. The equivalent ideal detector factor is used to compare the performance of different power allocation options of data and pilot channel. The results show that when the data and pilot channel has the same power, the acquisition sensibility is not better than that of traditional signal in normal conditions. The conclusion has significance on the BdS modernized signal design.

关键词： GNSS weak signal acquisition pilot channel

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Mechanisms of Transforming CH_x to CO on Ni(111) Surface by density Functional Theory

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Transactions of Tianjin University 2019年第4期25卷 330-339页

作者： Yingzhe Yu Hao Lei Lingguang Wang Minhua Zhang Key Laboratory for Green Chemical Technology of Ministry of Education R&D Center for Petrochemical TechnologyTianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072China

To elucidate feasible routes of producing CO from CH 3 and unravel the eff ect of adsorbed O on CH x transformation, the reactivity of CH x ( x = 1-3) with and without the assistance of adsorbed atomic O on Ni(111) was explored using density functional theory calculations. The adsorption energies of CH x ( x = 0-3) were found to be signifi cantly reduced on an O-preadsorbed Ni(111) surface compared to a pure surface. Furthermore, O-assisted one-step dehydrogenation of CH x ( x = 1-3) features energy barriers and thus is diffi cult to proceed. In terms of energy, the direct dissociation of CH 3 is favorable, except for the last CH dehydrogenation, which is energy intensive. Interestingly, in O-assisted two-step CH transformation to CO via CHO intermediate, the barrier is dramatically lowered. The successive dehydrogenations of CH x O ( x = 1-3) were also found to be a route for CO formation. Finally, two possible pathways from CH 3 to CO are proposed:(a) CH 3 → CH 2 → CH → CHO → CO;(b) CH 3 → CH 3 O → CH 2 O → CHO → CO.

关键词： density functional theory CH x transformation CO Ni(111)

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