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Energy management strategy that optimizes battery degradation for electric vehicles with hybrid energy storage system

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Science China(Technological Sciences) 2025年第2期68卷 40-52页

作者： jian wang Chaofeng PAN Zhongxing LI School of Automotive and Traffic Engineering Jiangsu UniversityZhenjiang 212000China Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212000China

The short life of electric vehicle(EV)batteries is an important factor limiting the popularization of EVs.A hybrid energy storage system(HESS)for EVs combines Li-ion batteries with supercapacitors,so that the supercapacitor shares the peak power during the starting and braking,effectively solving the problem of irreversible capacity degradation of Li-ion ***,an energy management strategy for HESS was designed based on battery degradation to extend the service life of the EV ***,to obtain accurate battery degradation characteristics,a cycling charge-discharge test was *** this test,the effects of discharge rate and state of charge on battery degradation rate were determined,and the battery degradation model was *** on the working map of the motor obtained through the bench test,a data-based model of the power system was constructed to accurately characterize the energy consumption of the EV under different operating ***,rule-based and optimization-based energy management strategies that consider battery degradation were designed using the fuzzy algorithm and dynamic programming(DP)*** effectiveness of the devised control strategies was assessed using the model-in-the-loop and hardware-in-the-loop test *** fuzzy control strategy had a simple structure and could be rapidly calculated but showed worse performance than the DP-based strategy in terms of battery *** DP-based energy management strategy resulted in 16.68% lower capacity degradation than the fuzzy strategy.

关键词： electric vehicle hybrid energy storage system(HESS) energy management strategy battery degradation characteristics

Carbon Nanofiber/Polyaniline Composite Aerogel with Excellent Electromagnetic Interference Shielding,Low Thermal Conductivity,and Extremely Low Heat Release

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Nano-Micro Letters 2025年第4期17卷 77-95页

作者： Mingyi Chen jian Zhu Kai Zhang Hongkang Zhou Yufei Gao Jie Fan Rouxi Chen Hsing-Lin wang School of Textile Science and Engineering Tiangong UniversityTianjin 300387People’s Republic of China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China School of Innovation and Entrepreneurship Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Guangdong Provincial Key Laboratory of Energy Materials for Electric Power Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Ministry of Education Key Laboratory of Advanced Textile Composite Materials Tiangong UniversityTianjin 300387People’s Republic of China

The rapid development of communication technology and high-frequency electronic devices has created a need for more advanced electromagnetic interference(EMI)shielding *** response to this demand,a study has been conducted to develop multifunctional carbon nanofibers(CNFs)/polyaniline(PANI)aerogels with excellent electromagnetic interference shielding,flame retardancy,and thermal insulation *** process involved freeze-drying of electrospun CNFs and PANI nanoparticles followed by in situ growth PANI to coat the CNFs,creating the core-shell structured CNFs/PANI composite fiber and its hybrid aerogels(CP-3@PANI).The interaction between PANI and aniline(ANI)provides attachment sites,allowing additional ANI adsorption into the aerogel for in situ *** results in PANI uniformly covering the surface of the CNFs,creating a core-shell composite fiber with a flexible CNF core and PANI *** process enhances the utilization rate of the ANI monomer and increases the PANI content loaded onto the ***,effective connections are established between the CNFs,forming a stable,conductive three-dimensional network *** prepared CP-3@PANI aerogels exhibit excellent EMI shielding efficiency(SE)of 85.4 dB and specific EMI SE(SE d^(-1))of 791.2 dB cm^(3)g^(-1)in the *** to the synergistic flame-retardant effect of CNFs,PANI,and the dopant(phytic acid),the CP-3@PANI aerogels demonstrate outstanding flame-retardant and thermal insulation properties,with a peak heat release rate(PHRR)as low as 7.8 W g^(-1)and a total heat release of only 0.58 kJ g^(-1).This study provides an effective strategy for preparing multifunctional integrated EMI shielding materials.

关键词： CNFs/PANI hybrid aerogels EMI shielding Flame retardancy Thermal insulation

A composite hydrogel with porous and homogeneous structure for efficient osmotic energy conversion

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Chinese Chemical Letters 2025年第2期36卷 234-238页

作者： Guilong Li Wenbo Ma Jialing Zhou Caiqin Wu Chenling Yao Huan Zeng jian wang College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology

With the impact of energy crisis and environmental problems, it is urgent to develop green sustainable energy. Osmotic energy stored in the salinity difference between seawater and river water is one of the sustainable, abundant, and renewable energy. However, the membranes used to capture osmotic energy by reverse electrodialysis （RED） always suffer from low ion selectivity, low stability and low *** with three-dimensional （3D） networks have shown great potential for ion transportation and energy conversion. In this work, based on the homogeneity and porosity characteristics of acrylamide（AM） hydrogel, as well as the remarkable stability and abundant negative charge of 3-sulfopropyl acrylate potassium salt （SPAK）, a high-performance AM/SPAK cation-selective hydrogel membrane was successfully developed for harvesting osmotic energy. Compared to AM hydrogels, utilizing AM/SPAK as a monomer mixture greatly facilitated the preparation of homogeneous polymers, exhibiting a porous structure, exceptional ion selectivity, and remarkable stability. A maximum output power density of 13.73 W/m2was achieved at a 50-fold NaCl concentration gradient, exceeding the commercial requirement of 5 W/m2. This work broadens the idea for the construction and application of composite hydrogel in high efficiency osmotic energy conversion.

关键词： Cation-selective membrane Osmotic energy Porous structure Power density Stability

AvERF73 positively regulates waterlogging tolerance in kiwifruit by participating in hypoxia response and mevalonate pathway

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Horticultural Plant Journal 2025年第1期11卷 162-174页

作者： Danfeng bai Yunpeng Zhong Shichao Gu Xiujuan Qi Leiming Sun Miaomiao Lin Ran wang Yukuo Li Chungen Hu Jinbao Fang National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crop Zhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhouHenan 450009China Key Laboratory of Horticultural Plant Biology College of Horticulture&Forestry Sciences of Huazhong Agricultural UniversityWuhanHubei 430070China

Waterlogging stress is one of the greatest environmental threats to kiwifruit growth and ***-VII proteins have been demonstrated to play pivotal roles in regulating plant tolerance to ***,the genome-wide role of ERF-VII in kiwifruit waterlogging stress tolerance remains ***,we report the function and regulatory network of an ERF-VII transcription factor located to the nucleus,Av ERF73,in kiwifruit waterlogging *** of Av ERF73 in Arabidopsis thaliana and *** *** enhanced waterlogging tolerance in transgenic ***,we performed transcriptome analysis(RNA-seq)and DNA affinity purification sequencing(DAP-seq)to explore the regulatory mechanism of Av ***-seq coupled with DAP-seq showed that Av ERF73 might directly activate Ac NAC022 involved in the“cellular response to hypoxia”process and Ac HMGS1 involved in the mevalonate pathway to respond to waterlogging,which were also confirmed by a dual-luciferase reporter *** on our results,we propose a putative working model for controlling waterlogging tolerance by Av ERF73 in kiwifruit.

关键词： Actinidia ERF-VII Waterlogging stress RNA-seq DAP-seq

Surface modification of fabrics using dielectric barrier discharge plasma for improved antifouling performance

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Plasma Science and Technology 2025年第1期27卷 7-16页

作者： jian SHEN Fajun wang Wei WEI Jie MA Junjie wang Liangliang LIN School of Materials and Chemical Engineering Ningbo University of TechnologyNingbo 315211People’s Republic of China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People’s Republic of China Mount Taishan Institute of Science and Technology Tai’an 271000People’s Republic of China

Surface modification of fabrics is an effective way to endow them with antifouling properties while still maintaining their key advantages such as comfort,softness and ***,an atmospheric pressure dielectric barrier discharge(DBD)plasma method is demonstrated for the processing of silk fabrics using 1H,1H,2H,2H-perfluorodecyltriethoxysilane(PFDS)as the *** results showed the successful grafting of PFDS groups onto the surface of silk fabrics without causing ***,the gas temperature is rather low during the whole processing procedure,suggesting the non-equilibrium characteristics of DBD *** influence on fabrics of the processing parameters(PFDS concentration,plasma treatment time and plasma discharge power)was systematically *** optimum processing condition was determined to be a PFDS concentration of 8wt%,a plasma processing time of 40 s and a plasma power of 11.87 ***,with prolonged plasma processing time or enhanced plasma power,the plasma-grafted PFDS films could be *** study revealed that plasma processing of silk fabrics with PFDS would lead to a change in their chemical composition and surface *** a result,the surface energy of the fabrics was reduced,accompanied by improved water and oil repellency as well as enhanced antifouling ***,the plasma-grafted PFDS films also had good durability and *** extending the method to polyester and wool against different oil-/water-based stains,the DBD plasma surface modification technique demonstrated good versatility in improving the antifouling properties of *** work provides guidance for the surface modification of fabrics using DBD plasma to confer them with desirable functionalities.

关键词： DBD plasma plasma surface modification silk fabrics water and oil repellency antifouling property

Positron annihilation study of defect formation and evolution in matrix graphite under He ion irradiation

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Nuclear Science and Techniques 2025年第1期36卷 13-21页

作者： Hong-Xia Xu jian-Dang Liu Bang-Jiao Ye Zi-Wen Pan Jun Lin Jin-Liang Song jian-Qing Cao Chao Yan Ying-Ping Hao Jin-Xing Cheng Qing-Bo wang Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200025China Beijing Institute of High Technology Beijing 100094China

The stability of matrix graphite under neutron irradiation and in corrosive environments is crucial for the safe operation of molten salt reactors(MSRs).Raman spectroscopy and a slow positron beam were employed to investigate the effects of He ion irradiation fluences and subsequent annealing on the microstructure and defects of the matrix *** ions with 500 keV energy and fluences ranging from 1.1×10^(15)ions∕cm^(2)to 3.5×10^(17)ions∕cm^(2)were used to simulate neutron irradiation at 300 *** samples with an irradiation fluence of 3.5×10^(16)ions∕cm^(2)were subjected to isochronal annealing at different temperatures(573 K,873 K and 1173 K)for 3 *** Raman results revealed that the D peak gradually increased,whereas the intrinsic G peak decreased with increasing irradiation *** the same irradiation fluence,the D peak gradually decreased,whereas the intrinsic G peak increased with increasing annealing *** positron beam analysis demonstrated that the density or size of irradiation defects(vacancy type)increased with higher irradiation fluence,but decreased rapidly with increasing annealing *** Raman spectral analysis of sample cross sections subjected to high irradiation fluences revealed the emergence of amorphization precisely at the depth where ion damage was most pronounced,whereas the surface retained its crystalline *** and positron annihilation analyses indicated that the matrix graphite exhibited good irradiation resistance to He ions at 300 ***,vacancy-type defects induced by He ion irradiation exhibit poor thermal stability and can be easily removed during annealing.

关键词： Graphite Positron annihilation Irradiation Raman spectrum

Dual-ligand chiral MOFs exhibiting circularly polarized room temperature phosphorescence for anti-counterfeiting

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Science China Chemistry 2025年

作者： Hongrui Zheng Qingqing wang Xinchao wang Fei wang Shangda Li jian Zhang State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University

Advanced chiral optical materials exhibiting circularly polarized room-temperature phosphorescence（CPRTP） possess significant research value. This study facilitates the synthesis of chiral metal-organic frameworks（CMOFs） with good CPRTP performance by implementing a dual-ligand strategy. By self-assembling the luminescent ligand H2BIIM with the chiral ligands L-or D-H2IDPA in the presence of Zn（II） ions, two robust three-dimensional（3D） CMOFs were successfully constructed. These complexes demonstrated intense fluorescence and exhibited prolonged yellow room-temperature phosphorescence（RTP） with a duration of up to 6 s. Notably, they exhibited both circularly polarized fluorescence(glum= ±7.57 × 10-3) and CPRTP(glum=±2.68 × 10-3). These unique properties were effectively utilized in the creation of multi-color anti-counterfeiting patterns,underscoring their promising potential for a wide range of applications.

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THECHORD GAUSS CURVATURE FLOW AND ITS L_(p)CHORDMINKOWSKI PROBLEM

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Acta Mathematica Scientia 2025年第1期45卷 161-179页

作者： Jinrong HU Yong HUANG jian LU Sinan wang School of Mathematics Hunan UniversityChangshaHunan Province410082China Institut für Diskrete Mathematik und Geometrie Technische Universität WienWiedner Hauptstrasse 8-101040WienAustria School of Mathematical Sciences South China Normal UniversityGuangzhou510631China School of Mathematics Hunan UniversityChangsha 410082China

In this paper,the L_(p)chord Minkowski problem is *** on the results shown in[20],we obtain a new existence result of solutions to this problem in terms of smooth measures by using a nonlocal Gauss curvature flow for ... 详细信息

关键词： L_(p)chord Minkowski problem new Monge-Ampere equation geometric fow

Association between intra-pancreatic fat deposition and diseases of the exocrine pancreas: A narrative review

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World Journal of Gastroenterology 2025年第2期31卷 27-41页

作者： Jing Ye jian-Guo wang Rong-Qiang Liu Qiao Shi Wei-Xing wang Department of General Surgery Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina Department of Pancreatic Surgery Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina

Intrapancreatic fat deposition(IPFD)has garnered increasing attention in recent *** prevalence of IPFD is relatively high and associated with factors such as obesity,age,and ***,the pathophysiological mechanisms underlying IPFD remain unclear,with several potential contributing factors,including oxida-tive stress,alterations in the gut microbiota,and hormonal *** was found to be highly correlated with the occurrence and prognosis of exocrine pan-creatic *** imaging techniques remain the primary diagnostic approach for IPFD,an expanding array of biomarkers and clinical scoring systems have been identified for screening ***,effective treatments for IPFD are not available;however,existing medications,such as glucagon-like peptide-1 receptor agonists,and new therapeutic approaches explored in animal models have shown considerable potential for managing this *** paper reviews the pathogenesis of IPFD,its association with exocrine pancreatic disea-ses,and recent advancements in its diagnosis and treatment,emphasizing the significant clinical relevance of IPFD.

关键词： Intrapancreatic fat deposition Pancreatic steatosis Nonalcoholic fatty pancreas disease Pancreatitis Pancreatic cancer