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Enhancing zinc-air battery performance by constructing threedimensional N-doped carbon coating multiple valence Co and MnO heterostructures

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Nano Research 2024年第6期17卷 5104-5113页

作者： Qi Liu Panzhe Qiao Miaomiao Tong Ying Xie Xinxin Zhang kuo lin Zhijian Liang Lei Wang Honggang Fu Key Laboratory of Superlight Materials and Surface Technology of the Ministry of Education of the People’s Republic of China Harbin Engineering UniversityHarbin 150080China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of China Heilongjiang UniversityHarbin 150080China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201204China

Developing highly-efficient bifunctional oxygen evolution reaction(OER)and oxygen reduction reaction(ORR)electrocatalysts is crucial for the widespread application of rechargeable Zn-air batteries(ZABs).Herein,an efficiency electrodeposition and pyrolytic strategy to synthesize the three-dimensional(3D)N-doped carbon coating multiple valence Co and MnO heterostructures supported on carbon cloth substrate(Co-MnO@NC/CC).It contains Co-Co,Co-N,and Co-O bonds,which synergistically enhance the oxygen reaction activity with *** exhibits a working potential of 1.473 V at 10 mA·cm^(−2)for OER and onset potential of 0.97 V for *** calculations demonstrate that the synergy between cobalt and manganese species could optimize the d-band center and reduce the energy barrier of Co-MnO@NC/CC for both OER and ORR ***,the MnO acts as the main OER active site could significantly optimize the energy barrier of O*→OOH*,thus further promoting the OER *** can be directly used as the air-cathode for both liquid-state and solid-state ZABs,which could afford a small voltage gap of 0.75 V at 10 mA·cm^(−2),a high power density of 172.5 mW·cm^(−2)and a long-term durability for 400 h,surpassing those of the Pt/C+RuO_(2)-based ***,the assembled batteries show potential applications in portable devices.

关键词： heterostructure synergy valence cobalt manganese oxide Zn-air battery

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The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier

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Chinese Journal of Chemical Engineering 2022年第7期35卷 271-281页

作者： kuo lin Zhongjie Shen Qinfeng Liang Jianliang Xu Haifeng Liu Shanghai Engineering Research Center of Coal Gasification East China University of Science and TechnologyShanghai 200237China Institute of Clean Coal Technology East China University of Science and TechnologyShanghai 200237China

The service life of refractory brick in the slag tapping hole of the entrained flow gasifier was significantly lower than that in other *** was critically important to study the corrosion mechanism of refractory brick in the slag tapping hole for guiding industrial *** the complex flow field in the slag tapping hole,the influence of gas velocity and temperature fluctuation on the service life of refractory brick was investigated in this *** results showed that the slag flow characteristics periodically changed with the gas temperature and velocity *** brick corrosion rate increased with the decrease of fluctuation *** with the gas-phase velocity fluctuation,the gasphase temperature fluctuation had a more significant influence on the brick corrosion *** the fluctuation frequency was 0.01 Hz and the gas temperature fluctuation amplitude was 200 K,the corrosion rate of refractory bricks increased by 25%.It could be concluded that the fluctuation of gas-phase temperature was the main cause for the low service life of refractory bricks in the tapping hole.

关键词： Gasification Brick corrosion Dynamic response Slag flow Heat transfer

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Ultrasonic vibrating system design and tool analysis

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中国有色金属学会会刊：英文版 2009年第B9期19卷 225-231页

作者： Kei-lin kuo Department of Vehicle Engineering National Taip ei University of Technology

The applications of ultrasonic vibrations for material removal processes exist predominantly in the area of vertical processing of hard and brittle materials. This is because the power generated by vertical vibrating oscillators generates the greatest direct penetration, in order to conduct material removal on workpieces by grains. However, for milling processes, vertical vibrating power has to be transformed into lateral (horizontal) vibration to produce the required horizontal cutting force. The objective of this study is to make use of ultrasonic lateral transformation theory to optimize processing efficiency, through the use of the finite element method for design and analysis of the milling tool. In addition, changes can be made to the existing vibrating system to generate best performance under consistent conditions, namely, using the same piezoelectric ceramics.

关键词：超声振动系统分析工具设计有限元分析方法超声波振动材料去除垂直振动硬脆材料

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Efficient piezo-catalytic dye degradation using piezoelectric 6H-SiC under harsh conditions

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Rare Metals 2024年第7期43卷 3173-3184页

作者： lin-lin Zhou Tao Yang Kang Wang Lai-Pan Zhu En-Hui Wang kuo-Chih Chou Hai-Long Wang Xin-Mei Hou Institute for Carbon Neutrality University of Science and Technology Beijing Institute of Steel Sustainable Technology Liaoning Academy of Materials Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences School of Materials Science Engineering Zhengzhou University Beijing Advanced Innovation Center for Materials Genome Engineering Beijing University of Science and Technology

The development of novel piezoelectric catalysts against harsh conditions is indeed crucial for improving the piezo-catalytic degradation efficiency of colored organic dyes in *** this work,6H-SiC nanoparticles（NPs） are utilized to piezo-catalytic degrade rhodamine B（RhB） and methylene blue（MB） under ultrasonic vibration for the first *** degradation efficiency of RhB and MB reaches 98.8% and 98.7%within 80 *** piezoelectricity of 6H-SiC is comprehensively analyzed by the piezoresponse force microscope（PFM） and finite element method（FEM）.The strong oxidizing active free radicals generated by the continuous piezoelectric polarized electric field of 6H-SiC,i.e.,·O2-and·OH,induce the decomposition reactions of colored organic dyes in *** the dyes are proven to degrade to harmless or less-harmful products gradually during the piezo-catalysis process by high-performance liquid chromatography tandem mass spectrometry（HPLC-MS）.Moreover,RhB is also decomposed efficiently by 6HSiC NPs under acidic and alkaline *** results prove the feasibility of 6H-SiC for decomposing common water pollutants under harsh conditions and provide a new perspective for water purification.

关键词： Piezo-catalytic degradation 6H-SiC Rhodamine B (RhB) Methylene blue (MB) Harsh conditions

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Ten- year follow- up investigation of stroke risk in systemic lupus erythematosus

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Stroke & Vascular Neurology 2024年第1期9卷 1-7页

作者： Jin-An Huang Ching-Heng lin Ming-Ju Wu Yi-Hsing Chen kuo-Cheng Chang Chung-Wei Hou Division of Neurology Neurological InstituteTaichung Veterans General HospitalTaichungTaiwan Department of Health Business Administration Hungkuang UniversityTaichungTaiwan Department of Medical Research Taichung Veterans General HospitalTaichungTaiwan Division of Nephrology Department of Internal MedicineTaichung Veterans General HospitalTaichungTaiwan School of Medicine Chung Shan Medical UniversityTaichungTaiwan College of Medicine National Chung Hsing UniversityTaichungTaiwan Division of Allergy Immunology and RheumatologyDepartment of Internal MedicineTaichung Veterans General HospitalTaichungTaiwan School of Medicine National Yang-Ming Chiao Tung UniversityTaichungTaiwan

Background and purpose To analyse the long-term risk of ischaemic stroke and the clinical effects of antithrombotics on the risk of haemorrhagic stroke in patients with systemic lupus erythematosus(SLE).Methods A retrospective cohort study was conducted using a population-based database taken from Taiwan National Health Insurance Research *** with SLE between 2000 and 2008 were registered and matched with two controls by the index date,age,gender and Charlson Comorbidity Index(CCI).These subjects were followed until either stroke event or 31 December *** HRs(aHRs)for strokes were estimated with Cox regression models,and the cumulative incidence of ischaemic stroke was analysed by log-rank test and Kaplan-Meier survival *** In total,8310 patients with SLE and 16620 patients without SLE were *** general,patients with SLE had higher rates of ischaemic stroke(5.4%vs 3.3%)and haemorrhagic stroke(1.5%vs 0.6%)than in *** multivariate analysis adjusted to age,gender,CCI,urbanisation level and antithrombotics uses,aHRs of all strokes,ischaemic stroke and haemorrhagic stroke were 1.73(95%CI:1.54 to 1.94),1.65(95%CI:1.45 to 1.87)and 2.24(95%CI:1.71 to 2.95),respectively,in patients with *** with SLE were significantly more likely to suffer ischaemic stroke than patients without SLE,even 10 years after SLE diagnosis(6.12%vs 3.50%,p<0.001).Antiplatelet use increased the risk of haemorrhagic stroke in SLE group(aHR=1.74,95%CI:1.18 to 2.57).Conclusions Patients with SLE are at greater risk of developing ischaemic stroke that lasts for 10 *** should be carefully administered to prevent cardiovascular events in patients with SLE due to the risk of haemorrhagic stroke.

关键词： erythematosus diagnosis likely

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Distributed fair queuing algorithm based on compensation coordination scheduling in WMN

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High Technology Letters 2012年第3期18卷 314-320页

作者： Jiang Fu Peng Jun kuo Chi lin School of Information Science and Engineering Central South University Changsha 410075 P. R. China College of Engineering and Computer Science University of Central Florida Orlando Florida USA 32816

This paper proposes a distributed fair queuing algorithm which is based on compensation coordination scheduling in wireless mesh networks, considering such problems as the location-dependent competition and unfair channel bandwidth allocation among nodes. The data communication process requiring the establishment of compensation coordination scheduling model is divided into three periods: the sending period, the compensation period and the dormancy period. According to model parameters, time constraint functions are designed to limit the execution length of each period. The algorithms guarantee that the nodes complete fair transmission of network packets together in accordance with the fixed coordination scheduling rule of the model. Simulations and analysis demonstrate the effectiveness of the proposed algorithm in network throughput and fairness. Copyright © by HIGH TECHNOLOGY LETTERS PRESS.

关键词：队列调度算法分布式补偿协调调度无线Mesh网络公平排队算法调度模型网络数据包

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Goldilocks principle of minimally invasive surgery for gastric subepithelial tumors

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世界胃肠外科杂志:英文版(电子版) 2023年第8期15卷 1629-1640页

作者： Wei-Jung Chang Lien-Cheng Tsao Hsu-Heng Yen Chia-Wei Yang Hung-Chi Chang Chew-Teng Kor Szu-Chia Wu kuo-Hua lin Department of General Surgery Changhua Christian HospitalChanghua 50006TaiwanChina Department of Gastroenterology Changhua Christian HospitalChanghua 50006TaiwanChina General Education Center Chienkuo Technology UniversityChanghua 50006TaiwanChina School of Medicine Chung Shan Medical UniversityTaichung 40201TaiwanChina Big Data Center Changhua Christian HospitalChanghua 50006TaiwanChina Graduate Institute of Statistics and Information Science National Changhua University of EducationChanghua 50007TaiwanChina Transplant Medicine&Surgery Research Center Changhua Christian HospitalChanghua 50006TaiwanChina

BACKGROUND Minimally invasive surgery had been tailored to individual cases of gastric subepithelial tumors(SETs)after comparing the clinical outcomes of endoscopic resection(ER),laparoscopic resection(LR),and hybrid *** To study the use of Goldilocks principle to determine the best form of minimally invasive surgery for gastric *** In this retrospective study,194 patients of gastric SETs with high probability of surgical intervention were *** patients underwent tumor resection in the operating theater between January 2013 and December *** patients were divided into two groups,ER or LR,according to the tumor characteristics and the initial intent of *** patients in the ER group required further backup laparoscopic surgery after an incomplete *** patients who had converted open surgery were excluded.A logistic regression model was used to assess the associations between patient characteristics and the likelihood of a treatment *** area under the curve was used to assess the discriminative ability of tumor size and Youden’s index to determine the optimal cut-off tumor *** One-hundred ninety-four patients(100 in the ER group and 94 in the LR group)underwent tumor resection in the operating *** the ER group,27 patients required backup laparoscopic surgery after an incomplete *** patients in the ER group had small tumor sizes and shorter procedure durations while the patients in the LR group had large tumor sizes,exophytic growth,malignancy,and tumors that were more often located in the middle or lower third of the *** groups had similar durations of hospital stays and a similar rate of major postoperative *** patients in the ER group who underwent backup surgery required longer procedures(56.4 min)and prolonged stays(2 d)compared to the patients in the LR group without the increased rate of major postoperative *** optimal cut-off point for the tumor size for l

关键词： Gastric subepithelial tumors Endoscopic resection Laparoscopic resection Tumor size

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Self-polarized RGB device realized by semipolar micro-LEDs and perovskite-in-polymer films for backlight applications

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Opto-Electronic Advances 2024年第3期7卷 35-49页

作者： Tingwei Lu Yue lin Tianqi Zhang Yue Huang Xiaotong Fan Shouqiang Lai Yijun Lu Hao-Chung kuo Zhong Chen Tingzhu Wu Rong Zhang School of Electronic Science and Engineering Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China Department of Photonics and Graduate Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringYang Ming Chiao Tung UniversityHsinchu 30010China Semiconductor Research Center Hon Hai Research InstituteTaipei 11492China.

In backlighting systems for liquid crystal displays,conventional red,green,and blue(RGB)light sources that lack polarization properties can result in a significant optical loss of up to 50%when passing through a *** address this inefficiency and optimize energy utilization,this study presents a high-performance device designed for RGB polarized *** device employs an array of semipolar blueμLEDs with inherent polarization capabilities,coupled with mechanically stretched films of green-emitting CsPbBr3 nanorods and red-emitting CsPbI3-Cs4PbI6 hybrid *** CsPbBr3 nanorods in the polymer film offer intrinsic polarization emission,while the aligned-wire structures formed by the stable CsPbI3-Cs4PbI6 hybrid nanocrystals contribute to substantial anisotropic emissions,due to their high dielectric *** resulting device achieved RGB polarization degrees of 0.26,0.48,and 0.38,respectively,and exhibited a broad color gamut,reaching 137.2%of the NTSC standard and 102.5%of the Rec.2020 *** compared to a device utilizing c-plane LEDs for excitation,the current approach increased the intensity of light transmitted through the polarizer by 73.6%.This novel fabrication approach for polarized devices containing RGB components holds considerable promise for advancing next-generation display technologies.

关键词： halide perovskite light-emitting-diodes polarized emission nanocrystals stability

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Study of neural network disturbance learning and application in RoboCup

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High Technology Letters 2007年第2期13卷 203-206页

作者：彭军 Wu Ming Guo Rui kuo-chi lin School of Information Science and Engineering Central South University Changsha 410075 P.R.China Institute for Simulation and Training University of Central Florida Orlando FL32826 U.S.A.

To solve the problem of convergence to a local optimum in the multi-layer feedforward neural network, a new disturbance gradient algorithm is proposed. Through introducing random disturbance into the training process, the algorithm can avoid being trapped into the local optimum. The random disturbance obeys the Boltzmann distribution. The convergence of the algorithm to the global optimum is statistically guaranteed. The application of the algorithm in RoboCup, which is a complex multi-agent system, is discussed. Experiment results illustrate the learning efficiency and generalization ability of the proposed algorithm.

关键词：神经网络干扰学习机械记忆计算机

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Coordinated dynamic mission planning scheme for intelligent multi-agent systems

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Journal of Central South University 2012年第11期19卷 3170-3179页

作者：彭军文孟飞谢国祺张晓勇 kuo-chi lin School of Information Science and Engineering Central South UniversityChangsha 410075China Hunan Engineering Laboratory for Advanced Control and Intelligent Automation(Central South University) Changsha 410075China Embedded Systems and Networking Laboratory Hunan Provincial Key Laboratory of Network and Information Security(Hunan University)Changsha 410075China Department of Mechanical and Aerospace Engineering University of Central FloridaOrlandoFL 32816USA

Mission planning was thoroughly studied in the areas of multiple intelligent agent systems,such as multiple unmanned air vehicles,and multiple processor ***,it still faces challenges due to the system complexity,the execution order constraints,and the dynamic environment *** address it,a coordinated dynamic mission planning scheme is proposed utilizing the method of the weighted AND/OR tree and the *** the scheme,the mission is decomposed into a time-constraint weighted AND/OR tree,which is converted into an AOE-Network for mission ***,a dynamic planning algorithm is designed which uses task subcontracting and dynamic re-decomposition to coordinate *** scheme can reduce the task complexity and its execution time by implementing real-time dynamic *** simulation proves the effectiveness of this approach.

关键词：智能多代理系统任务规划智能代理系统多处理器系统动态规划算法 AOE-网不确定性顺序约束

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