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Gradually activated lithium uptake in sodium citrate toward high-capacity organic anode for lithium-ion batteries

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Rare Metals 2021年第6期40卷 1366-1372页

作者： Rong long Gu-Lian wang Zhong-Li Hu Peng-fei Sun Li Zhang College of Chemistry Chongqing Normal UniversityChongqing 401331China College of Energy Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China

Lithium-ion batteries(LIBs)have been used to power various electric devices and store energy,but their toxic components by using inorganic materials generally cause serious environmental issues when ***,environmentally friendly and naturally abundant organic compounds have been adopted as promising electrode materials for next-generation ***,a new organic anode electrode based on sodium citrate is proposed,which shows gradually activated electrochemical behavior and delivers a high reversible capacity of 776.8 mAh·g^(-1)after 1770 cycles at a current density of 2 A·g^(-1).With the aid of the electrochemical characterization,Fourier-transform infrared(FTIR)and X-ray photoelectron spectroscopy(XPS)analysis,the lithium uptake mechanism of sodium citrate-based anodes is identified to be a combination of three-electron lithiation/delithiation and fast Li+intercalation/deintercalation processes,in which Faradaic reactions could offer a theoretical contribution of312 mAh·g^(-1)and intercalation pseudocapacitance would provide extra *** work demonstrates the great potential for developing high-capacity organic electrodes for LIBs in future.

关键词： Faradaic lithiation Lithium-ion battery Li+intercalation pseudocapacitance Multiple lithium-ion storage mechanism Sodium citrate-based anode

FISS GAN:A Generative Adversarial Network for Foggy Image Semantic Segmentation

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IEEE/CAA Journal of Automatica Sinica 2021年第8期8卷 1428-1439页

作者： Kunhua Liu Zihao Ye Hongyan Guo Dongpu Cao long Chen fei-Yue wang School of Computer Science and Engineering Sun Yat-sen UniversityGuangzhou 510006China State Key Laboratory of Automotive Simulation and Control and the Department of Control Science and Engineering Jilin University(Campus Nanling)Changchun 130025China Mechanical and Mechatronics Engineering Department at the University of Waterloo 200 University Avenue West WaterlooON N2L 3G1Canada State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190 Institute of Systems Engineering Macao University of Science and TechnologyMacao 999078China

Because pixel values of foggy images are irregularly higher than those of images captured in normal weather(clear images),it is difficult to extract and express their *** method has previously been developed to directly explore the relationship between foggy images and semantic segmentation *** investigated this relationship and propose a generative adversarial network(GAN)for foggy image semantic segmentation(FISS GAN),which contains two parts:an edge GAN and a semantic segmentation *** edge GAN is designed to generate edge information from foggy images to provide auxiliary information to the semantic segmentation *** semantic segmentation GAN is designed to extract and express the texture of foggy images and generate semantic segmentation *** on foggy cityscapes datasets and foggy driving datasets indicated that FISS GAN achieved state-of-the-art performance.

关键词： Edge GAN foggy images foggy image semantic segmentation GAN semantic segmentation

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用于水下图像增强的多层级联融合增强网络

电光与控制 2025年第1期32卷 68-73页

作者：王炫钧邵菲马彦卿西安建筑科技大学理学院西安710000

为了提高水下无人潜航器决策的准确性,构建了一种用于增强水下图像的多层级联融合增强网络。首先,设计注意力引导的色彩增强模块并结合多层级联增强架构,在提取图像多尺度特征的同时,加强特征重用;其次,设计全局调整模块,将Swin Transfo... 详细信息

为了提高水下无人潜航器决策的准确性,构建了一种用于增强水下图像的多层级联融合增强网络。首先,设计注意力引导的色彩增强模块并结合多层级联增强架构,在提取图像多尺度特征的同时,加强特征重用;其次,设计全局调整模块,将Swin Transformer与扩张卷积相结合,提升网络对于退化图像整体增强效果;最后,将各模块提取到的特征信息经由三重特征聚合模块进行融合增强,得到增强水下图像。为了可以更好地训练模型,构造了联合损失函数。与其他水下图像增强方法的对比实验结果表明,所提方法对于水下图像存在的色偏、模糊等问题均有着良好的增强效果,并对后续特征提取任务的完成有着较大的促进作用。

关键词：水下无人潜航器水下图像增强多层级联增强架构全局调整三重特征聚合

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3D打印技术辅助PBL教学法在临床医学本科生骨科疾病教学中的实践应用

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转化医学电子杂志 2017年第6期4卷 90-92页

作者：吴爱悯王凯王鉴顺林焱倪文飞池永龙王向阳温州医科大学附属第二医院育英儿童医院脊柱外科温州医科大学第二临床医学院浙江省骨科学重点实验室数字化骨科研究所浙江温州325027

目的:探讨3D打印技术辅助PBL教学法和传统教学法在临床医学本科生骨科疾病教学中的实践应用.方法:选取2013级临床专业5年制本科生90名,采用整群随机分2组,分别为3D打印技术辅助PBL教学组和传统教学组.教学结束后,让学生对教学吸引力、... 详细信息

目的:探讨3D打印技术辅助PBL教学法和传统教学法在临床医学本科生骨科疾病教学中的实践应用.方法:选取2013级临床专业5年制本科生90名,采用整群随机分2组,分别为3D打印技术辅助PBL教学组和传统教学组.教学结束后,让学生对教学吸引力、知识理解深度、思考启发力、知识掌握程度、总体满意度5个方面进行评分,每项采取10分制,同时记录学生的实训考核成绩(100分制).最后比较两组教学法的评分.结果:教学吸引力、知识理解深度、思考启发力、知识掌握程度、总体满意度平均分分别为6.7,6.1,6.9,6.1,6.5分,PBL结合3D打印骨骼模型教学组的平均分分别为7.8,8.1,7.7,7.6,7.8分,对两组学生的教学吸引力、知识理解深度、思考启发力、知识掌握程度、总体满意度及实训考核等评分进行比较,3D打印技术辅助PBL教学组评分和实训考核均高于传统教学组,差异具有统计学意义(P<0.05).结论:3D打印技术辅助PBL教学可以提高课堂吸引力,使学生更好地理解骨科疾病,值得推广.

关键词： PBL教学 3D打印骨科教学医学教育

Low-temperature oxidation behavior and mechanism of semi-dry desulfurization ash from iron ore sintering flue gas

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Journal of Iron and Steel Research International 2021年第9期28卷 1075-1081页

作者： Yi-fan wang Yu-dong Zhang Hong-ming long Li-xin Qian Yun-fei Luo Ru-fei Wei School of Metallurgical Engineering Anhui University of TechnologyMa'anshan 243032AnhuiChina Key Laboratory of Metallurgical Emission Reduction and Resources Recycling(Anhui University of Technology) Ministry of EducationMa'anshan 243002AnhuiChina

The low-temperature wet oxidation behavior of semi-dry desulfurization ash from iron ore sintering flue gas in ammonium citrate solution was investigated for efficiently utilizing the low-quality desulfurization ash. The effects of the ammonium citrate concentration, oxidation temperature, solid/liquid ratio, and oxidation time on the wet oxidation behavior of desulfurization ash were studied. Simultaneously, the oxidation mechanism of desulfurization ash was revealed by means of X-ray diffraction, Zeta electric resistance, and X-ray photoelectron spectroscopy (XPS) analysis. Under the optimal conditions with ammonium citrate, the oxidation ratio of CaSO_(3) was up to the maximum value (98.49%), while that of CaSO_(3) was only 8.92% without ammonium citrate. Zeta electric resistance and XPS results indicate that the dissolution process of CaSO_(3) could be significantly promoted by complexation derived from the ammonium citrate hydrolysis. As a result, the oxidation process of CaSO_(3) was transformed from particle oxidation to SO_(3)^(2−) ion oxidation, realizing the rapid transformation of desulfurization ash from CaSO_(3) to CaSO_(4) at low temperature. It provides a reference for the application of semi-dry desulfurization ash and contributes to sustainable management for semi-dry desulfurization ash.

关键词： Semi-dry desulfurization ash Ammonium citrate Calcium sulfite Calcium sulfate Wet oxidation Sintering flue gas Low-temperature oxidation

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普通延迟焦化装置生产动力类负极焦研究

石油炼制与化工 2025年第1期56卷 117-122页

作者：王慧党建军花飞中海油惠州石化有限公司广东惠州516086

随着锂离子电池负极材料行业的高速增长,其对石油焦原料的需求量越来越大,传统炼油厂如果能利用现有延迟焦化装置生产满足负极材料要求的焦原料,将是提质增效的有效途径。动力类电池要求负极材料能够实现高克容量、高倍率等性能,相应地... 详细信息

随着锂离子电池负极材料行业的高速增长,其对石油焦原料的需求量越来越大,传统炼油厂如果能利用现有延迟焦化装置生产满足负极材料要求的焦原料,将是提质增效的有效途径。动力类电池要求负极材料能够实现高克容量、高倍率等性能,相应地要求负极材料焦原料有高比例的纤维结构和区域结构,这与焦化过程中碳质中间相的形成与生长密切相关。普通延迟焦化装置生产动力类负极焦需从原料和工艺条件两方面寻找改善途径,如掺炼催化裂化油浆,采用低反应温度、高焦化压力、大循环比、长生焦时间操作,并应对上下游衔接、加工效益评估、全厂物料平衡和维持石油焦品质稳定等方面的挑战。

关键词：负极材料石油焦碳质中间相焦化

Latest advances in discontinuous deformation analysis method

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Science China(Technological Sciences) 2017年第6期60卷 963-964页

作者： JIAO YuYong ZHAO Qiang ZHENG fei wang long Faculty of Engineering China University of Geosciences Wuhan 430074 China State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil Mechanics Chinese Academy of Sciences Wukan 430071 China

Discontinuous deformation analysis （DDA） method, proposed firstly by Shi [1] in 1988, is a novel numerical approach to simulate the discontinuous deformation behaviors of blocky rock structures. In DDA, the domain of interest is represented as an assemblage of discrete blocks and the joints are treated as interfaces between blocks. The governing equations of DDA are derived from Newton’s Second Law of Motion and the Principle of Minimum Potential Energy.

关键词： discontinuous blocks assemblage advances collapse joints interfaces rock governing accordingly

High-energy-density lithium manganese iron phosphate for lithium-ion batteries: Progresses, challenges, and prospects

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Journal of Energy Chemistry 2025年第1期100卷 1-17页

作者： Bokun Zhang Xiaoyun wang Shuai wang Yan Li Libo Chen Handong Jiao Zhijing Yu Jiguo Tu State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Research Institute for Intelligent Wearable Systems The Hong Kong Polytechnic University Institute of Advanced Structure Technology Beijing Institute of Technology

The soaring demand for smart portable electronics and electric vehicles is propelling the advancements in high-energy–density lithium-ion *** manganese iron phosphate (LiMnxFe1-xPO4) has garnered significant attention as a promising positive electrode material for lithium-ion batteries due to its advantages of low cost,high safety,long cycle life,high voltage,good high-temperature performance,and high energy *** LiMnxFe1-xPO4has made significant breakthroughs in the past few decades,there are still facing great challenges in poor electronic conductivity and Li-ion diffusion,manganese dissolution affecting battery cycling performance,as well as low tap *** review systematically summarizes the reaction mechanisms,various synthesis methods,and electrochemical properties of LiMnxFe1-xPO4to analyze reaction processes accurately and guide material ***,the main challenges currently faced are concluded,and the corresponding various modification strategies are discussed to enhance the reaction kinetics and electrochemical performance of LiMnxFe1-xPO4,including multi-scale particle regulation,heteroatom doping,surface coating,as well as microscopic morphology ***,in view of the current research challenges faced by intrinsic reaction processes,kinetics,and energy storage applications,the promising research directions are *** importantly,it is expected to provide key insights into the development of high-performance and stable LiMnxFe1-xPO4materials,to achieve practical energy storage requirements.

关键词： Lithium manganese iron phosphate High energy density Lithium-ion batteries Reaction mechanism Tap density

Advances in Vision-Based Lane Detection：Algorithms,Integration,Assessment,and Perspectives on ACP-Based Parallel Vision

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IEEE/CAA Journal of Automatica Sinica 2018年第3期5卷 645-661页

作者： Yang Xing Chen Lv long Chen Huaji wang Hong wang Dongpu Cao Efstathios Velenis fei-Yue wang Advanced Vehicle Engineering Centre Cranfield University Bedford MK43 0AL U.K Vehicle Intelligence Pioneers Ltd Qingdao 266000 China School of Data and Computer Science Sun Yat-Sen University Guangzhou 510275 China Mechanical and Mechatronics Engineering with the University of Waterloo 200 University Avenue West Waterloo ON N2L 3G1 Canada State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China ieee

Lane detection is a fundamental aspect of most current advanced driver assistance systems(ADASs). A large number of existing results focus on the study of vision-based lane detection methods due to the extensive knowledge background and the low-cost of camera devices. In this paper, previous visionbased lane detection studies are reviewed in terms of three aspects, which are lane detection algorithms, integration, and evaluation methods. Next, considering the inevitable limitations that exist in the camera-based lane detection system, the system integration methodologies for constructing more robust detection systems are reviewed and analyzed. The integration methods are further divided into three levels, namely, algorithm, system,and sensor. Algorithm level combines different lane detection algorithms while system level integrates other object detection systems to comprehensively detect lane positions. Sensor level uses multi-modal sensors to build a robust lane recognition system. In view of the complexity of evaluating the detection system, and the lack of common evaluation procedure and uniform metrics in past studies, the existing evaluation methods and metrics are analyzed and classified to propose a better evaluation of the lane detection system. Next, a comparison of representative studies is performed. Finally, a discussion on the limitations of current lane detection systems and the future developing trends toward an Artificial Society, Computational experiment-based parallel lane detection framework is proposed.

关键词： Advanced driver assistance systems(ADASs) ACP theory benchmark lane detection parallel vision performance evaluation