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Li-ion battery temperature estimation based on recurrent neural networks

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Science China(Technological Sciences) 2021年第6期64卷 1335-1344页

作者： jiang yuheng YU YiFei HUANG JianQing CAI WeiWei MARCO James Key Laboratory of Education Ministry for Power Machinery and Engineering School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China University of Warwick-Warwick Manufacturing Group(WMG) Coventry CV47ALUK

The monitoring of Li-ion battery temperatures is essential to ensure high efficiency and *** this work,two types of recurrent neural networks (RNNs),which are long short-term memory-RNN (LSTM-RNN) and gated recurrent unit-RNN(GRU-RNN),are proposed to estimate the surface temperature of 18650 Li-ion batteries during the discharging processes under different ambient *** datasets acquired from the Prognostics Center of Excellence (PCo E) of NASA are used to train,validate and test the *** previous work,temperature has been set as the output of the networks;however,here the temperature difference along the time axis is adopted as the *** net heat generated results in net temperature change,which is more closely aligned with electrochemical and thermodynamic *** simulation results show that the two RNNs can achieve accurate real-time battery temperature *** maximum absolute error in temperature estimation is approximately 0.75°C and the correlation coefficient between the estimated and measured temperature curves is greater than *** influences of three crucial parameters,which are the number of hidden neurons,initial learning rate and maximum number of iterations,are also assessed in terms of training time,root mean square error and mean absolute error.

关键词： battery temperature estimation model recurrent neural network long short-term memory gated recurrent unit

Hybrid assembly of conducting nanofiber network for ultra-stretchable and highly sensitive conductive hydrogels

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Journal of Materials Science & Technology 2024年第2期169卷 1-10页

作者： Yalei Wang Shulong Zeng Shaohong Shi yuheng jiang Zhiwei Du Bingzhen Wang Xiurong Li State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan UniversitySichuan UniversityChengdu 610065China

Conductive hydrogels have attracted extensive attention owing to their promising application prospects in flexible and wearable ***,achieving both high sensitivity and mechanical robustness remains ***,a novel and versatile conductive hydrogel based on the hybrid assem-bly of conductive cellulose nanofiber(CNF)networks has been designed and *** by the templating effect of CNFs and stabilizing effect of negatively charged poly(styrene sulfonate)(PSS),conducting polymer poly(3,4-ethylenedioxythiophene)(PEDOT)was self-organized into three-dimensional nanostructures which constructed a robust conductive network after in-situ oxidative *** unique structure derived from CNF bio-template endowed polyacrylamide(PAM)hydrogels with improved electrical conductivity and excellent mechanical *** a result,the as-fabricated CNF/PEDOT:PSS/PAM hydrogel exhibited an ultimate tensile strain of 1881%and toughness of 3.72 MJ/m^(3),which were 4.07 and 8.27 times higher than the CNF-free hydrogel,*** significantly,the resultant hydrogel sensor showed highly desirable sensing properties,including remarkable sensing range(1100%),high gauge factor(GF=5.16),fast response time(185 ms),and commendable durability,as well as good ***,the hydrogel sensor was able to distinguish subtle physiological activities including phonation and facial expression,and monitor large human body motions such as finger flexion and elbow ***,it was feasible to integrate the strain sensor on the joints of robots to recognize complicated machine motion signals,showing potential in advanced human-machine interactions.

关键词： Strain sensor Cellulose nanofibers PEDOT:PSS Conductive hydrogel Templating method

Photocatalytic Methane Conversion:Insight into the Mechanism of C(sp^(3))-H Bond Activation

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CCS Chemistry 2023年第1期5卷 30-54页

作者： yuheng jiang Yingying Fan Siyang Li Zhiyong Tang Chinese Academy of Science(CAS)Key Laboratory of Nanosystem and Hierarchy Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190 Center for Advanced Analytical Science School of Chemistry and Chemical EngineeringSchool of Civil EngineeringAnalytical and Testing CenterGuangzhou UniversityGuangzhou 510006 Center for Nanoscale Science and Technology Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871 University of Chinese Academy of Sciences Beijing 100049

Mild and direct conversion of methane into high value-added products is a desired goal for chemistry,energy,and *** active species generated in the photocatalytic reaction system under mild conditions activate the inert C-H bond in methane and promote methane *** review focuses on the developed mechanisms for C(sp^(3))-H bond activation in photocatalytic methane conversion,including radical and active site *** emphasis is placed on the detailed summary of mechanism,characterization method,and corresponding application in photocatalytic methane *** also discuss the challenges and prospects for future direction on C(sp^(3))-H bond activation mechanism in photocatalytic methane *** review aims to promote the development of photocatalytic methane conversion and provides guidance for the design of high-efficiency photocatalysts.

关键词： photocatalysis methane C-H bonds radical active site

3D‑Printed Carbon‑Based Conformal Electromagnetic Interference Shielding Module for Integrated Electronics

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Nano-Micro Letters 2024年第5期16卷 87-101页

作者： Shaohong Shi yuheng jiang Hao Ren Siwen Deng Jianping Sun Fangchao Cheng Jingjing Jing Yinghong Chen State Key Laboratory of Featured Metal Materials and Life‑Cycle Safety for Composite Structures School of ResourcesEnvironment and MaterialsGuangxi UniversityNo.100Daxuedong RoadNanning 530004People’s Republic of China State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan UniversitySichuan UniversityNo.24 South Section 1Yihuan RoadChengdu 610065People’s Republic of China

Electromagnetic interference shielding(EMI SE)modules are the core com-ponent of modern ***,the tra-ditional metal-based SE modules always take up indispensable three-dimensional space inside electronics,posing a major obstacle to the integra-tion of *** innovation of integrating 3D-printed conformal shielding(c-SE)modules with packaging materials onto core electronics offers infinite possibilities to satisfy ideal SE func-tion without occupying additional ***,the 3D printable carbon-based inks with various proportions of graphene and carbon nanotube nanoparticles are well-formulated by manipulating their rheological ***,the free-constructed architectures with arbitrarily-customized structure and multifunctionality are created via 3D *** particular,the SE performance of 3D-printed frame is up to 61.4 dB,simultaneously accompanied with an ultralight architecture of 0.076 g cm^(-3) and a superhigh specific shielding of 802.4 dB cm3 g^(-1).Moreover,as a proof-of-concept,the 3D-printed c-SE module is in situ integrated into core electronics,successfully replacing the traditional metal-based module to afford multiple functions for electromagnetic compatibility and thermal ***,this scientific innovation completely makes up the blank for assembling carbon-based c-SE modules and sheds a brilliant light on developing the next generation of high-performance shielding materials with arbitrarily-customized structure for integrated electronics.

关键词： 3D printing Carbon-based nanoparticles Conformal electromagnetic interference shielding Integrated electronics

Study of aquatic chemical characteristic in some bays along the coastal region of Zhejiang Province

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Acta Oceanologica Sinica 1990年第4期9卷 547-554页

作者： Wang yuheng,Dong Henglin and jiang Guochang The Second Institute of Oceanography,State Oceanic Administration ,Hangzhou,China China

In this paper,the aquatic chemical characteristics in the Hangzhou Bay,Xiangshan Bay and Leqing Bay along the coastal region of Zhejiang Province are discussed . Results show that the seasonal variations of chemical elements are obvious. The distribution of silicate in Hangzhou Bay and contents of dissolved oxygen and nutrient in the Xiangshan Bay are found to be unusual in winter. Correlations among the elements are complex. The content of nutrient in the Hangzhou Bay is higher than that in Xiangshan Bay and the content of nutrient in the Xiangshan Bay is higher than that in the Leqing Bay . The variation of the ratio of N/P is obvious. This reflects the aquatic chemical characteristics in the bay. Finally, this paper also discusses the reason why the aquatic chemical characteristics in the bays are unusual.

关键词： Study of aquatic chemical characteristic in some bays along the coastal region of Zhejiang Province Bay

Comprehensive Analysis,Discussion and Suggestion on the Current Situation of Cardiopulmonary Resuscitation and Automatic External Defibrillator in General Public in China

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Journal of Advances in Medicine Science 2021年第1期4卷 16-18页

作者： yuheng jiang Chenxu Yang Xuchen Deng Zhilu Li Saijia Li Hainan Medical University HaikouHainan570100China

The number of sudden cardiac death(SCD)has increased year by year,which has become one of the main causes of death in *** cardiopulmonary resuscitation(CPR)and timely and accurate use of automatic external defibrillator(AED)can greatly improve the survival rate of patients with sudden cardiac *** the large probability of sudden cardiac death occurs outside the hospital,it is very important for the general public to master first aid *** paper will mine all kinds of data from multi-dimensional and multi-angle,analyze the mastery of public first aid skills in China,and provide practical suggestions and ideas for popularizing first aid skills in the future.

关键词： Sudden cardiac death Cardiac arrest Cardiopulmonary resuscitation Automatic external defibrillator Pre-hospital first aid

Advances in the Treatment of Acute ITP

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Journal of Integrative Medicine（双语） 2022年第1期11卷 22-28页

作者： yuheng jiang Jiahao Gu Zai Gu Yifeng Xu Bin Jia Jing Yang School of Emergency Trauma Hainan Medical UniversityHaikouHainan570100China School of Nursing Hainan Medical UniversityHaikouHainan570100China

Immune thrombocytopenia(ITP),also known as idiopathic thrombocytopenic purpura,is a hematologic disease in which platelet destruction increases and production decreases,mainly mediated by ***,up to now,the pathogenesis of ITP is not clear,which has caused great trouble in ***,this paper intends to review the recent literature on ITP treatment to provide some reference for clinical *** paper combines the evidence of ASH immune thrombocytopenia and the Chinese Guidelines for the Diagnosis and Treatment of Adult primary immune thrombocytopenia(2020 edition).In this paper,the treatment process of ITP was divided into first-line treatment and second-line treatment,and it was concluded that first-line treatment was often used when newly diagnosed with ITP:combination of high-dose dexamethasone and low-dose gamma ***,it should be noted that only 60%-80%of patients responded to first-line treatment,and most of them relapsed during dosing reduction or drug ***-line treatment is recommended in this *** standard treatment is splenectomy,but due to its uncontrollable nature and side effects,it should be used cautiously.A new treatment approach,thrombogenin receptor agonist,has great development potential,and multidrug combination therapy for ITP has positive clinical significance.

关键词： ITP Hormone therapy IVIg treatment Splenectomy Thrombopoietin receptor agonist

研究型大学助推创新型城市建设的路径初探--来自华盛顿大学的经验借鉴

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中国高教研究 2016年第7期 73-79页

作者：江育恒赵文华上海交通大学高等教育研究院博士研究生上海200240

大学与城市的关系一直是学术界关注的重要议题。近年来,美国西雅图市通过实施创新政策和人才政策,发挥产业集群效应,促进清洁能源产业发展,逐渐成为新兴的综合性科技创新中心。作为西雅图创新网络中的一支重要力量,华盛顿大学凭借自身... 详细信息

大学与城市的关系一直是学术界关注的重要议题。近年来,美国西雅图市通过实施创新政策和人才政策,发挥产业集群效应,促进清洁能源产业发展,逐渐成为新兴的综合性科技创新中心。作为西雅图创新网络中的一支重要力量,华盛顿大学凭借自身优势学科和科技实力,培育创新文化,积极推动协同创新,极大地推动了西雅图创新型城市的建设,其成功经验值得我国研究型大学借鉴。

关键词：研究型大学创新型城市创新网络

研究型大学在区域创新集群中的作用研究:以美国五大生物医药集聚区为例

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高等工程教育研究 2017年第5期65卷 102-108页

作者：江育恒赵文华上海交通大学高等教育研究院

作为典型的创新——资本密集型产业,生物医药产业的发展需要大量的技术积累,从创新组织模式上看,构建产学研合作关系是这一产业持续发展的关键。在美国众多生物医药创新集群中,马萨诸塞、北卡罗来纳、旧金山、圣地亚哥和华盛顿——巴尔... 详细信息

作为典型的创新——资本密集型产业,生物医药产业的发展需要大量的技术积累,从创新组织模式上看,构建产学研合作关系是这一产业持续发展的关键。在美国众多生物医药创新集群中,马萨诸塞、北卡罗来纳、旧金山、圣地亚哥和华盛顿——巴尔的摩五大集聚区最为典型,基础研究的有力保证、风险资金的强力支持以及地方政府的大力推动等因素共同推动了美国生物医药产业的快速发展。本文将以五大生物医药集聚区作为案例,从产业组织、科技园区、中介机构、科技成果转化等角度归纳总结美国生物医药创新集群发展的政策支持体系,探究研究型大学在区域创新体系建设中的作用与有效服务机制。

关键词：创新网络技术转移衍生企业风险投资中介服务