检索结果-南通市图书馆

Rapid health estimation of in-service battery packs based on limited labels and domain adaptation

Journal of energy Chemistry 2024年第2期89卷 345-354,I0009页

作者： Zhongwei deng le.Xu Hongao Liu Xiaosong Hu Bing Wang Jingjing Zhou School of Mechanical and ele.trical engineering University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina School of Sustainability Stanford UniversityStanfordCA 94305USA Colle.e of Mechanical and Vehicle.engineering Chongqing UniversityChongqing 400044China China Automotive engineering Research Institute Co.Ltd. Chongqing 401122China

For large-scale.in-service ele.tric vehicle.(eVs)that undergo potential maintenance,second-hand transactions,and retirement,it is crucial to rapidly evaluate the health status of their battery ***,existing methods often rely on le.gthy battery charging/discharging data or extensive training sample.,which hinders their imple.entation in practical *** address this issue,a rapid health estimation method based on short-time charging data and limited labels for in-service battery packs is proposed in this ***,a digital twin of battery pack is established to emulate its dynamic behavior across various aging le.els and inconsistency ***,increment capacity sequences(△Q)within a short voltage span are extracted from charging process to indicate battery ***,data-driven models based on deep convolutional neural network(DCNN)are constructed to estimate battery state of health(SOH),where the synthetic data is employed to pre-train the models,and transfer le.rning strategies by using fine-tuning and domain adaptation are utilized to enhance the model ***,field data of 10 eVs exhibiting different SOHs are used to verify the proposed *** using the△Q with 100 m V voltage change,the SOH of battery packs can be accurately estimated with an error around 3.2%.

关键词： Lithium-ion battery ele.tric vehicle. Health estimation Feature extraction Convolutional neural network Domain adapatation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

effect of addition temperature on dispersion behavior and grain refinement efficiency of MgO introduced into Mg alloy

引用

Transactions of Nonferrous Metals Society of China 2024年第8期34卷 2491-2506页

作者： le.ZAI Xin TONG Yun WANG Xiao-huai XUe School of Materials Science and engineering Shanghai Jiao Tong UniversityShanghai 200240China Brunel Centre for Advanced Solidification Technology(BCAST) Brunel University LondonUxbridgeMiddlesex UB83PHUnited Kingdom

The effect of addition temperature of MgO particle.(MgOp)on their dispersion behavior and the efficiency of grain refinement in AZ31 Mg alloy was *** addition,the grain refinement mechanism was systematically studied by microstructure characterization,thermodynamic calculation,and analysis of solidification *** results show that the grain size of AZ31 Mg alloy initially decreases and then increases as the MgOp addition temperature is increased from 720 to 810°C,exhibiting a minimum value of 136μm at 780°*** improved grain refinement efficiency with increasing MgOp addition temperature can be attributed to the reduced Mg melt viscosity and enhanced wettability between MgOp and Mg ***,a corresponding physical model describing the solidification behavior and grain refinement mechanism was proposed.

关键词： grain refinement MgO nucle.tion particle. AZ31 alloy addition temperature dispersion behavior

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

enhancement of mechanical properties of GTAW joints for ZC63 magnesium alloy by post-weld heat treatment

引用

Journal of Materials Science & Technology 2024年第2期169卷 251-263页

作者： Weiyang Zhou Qichi le.Ye Shi Qiyu Liao Tong Wang Qi Zou Clodualdo Aranas Jr Key Lab of ele.tromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang 110819China Key Laboratory of Lightweight Structural Materials Liaoning ProvinceNortheastern UniversityShenyang 110819China School of Materials Science and engineering Northeastern UniversityShenyang 110819China department of Mechanical engineering University of New BrunswickFrederictonE3B 5A3New BrunswickCanada

To further improve the microstructure and mechanical properties of gas tungsten arc welded(GTAW)welded joints for ZC63 magnesium alloy,post-weld heat treatment is carried *** is found that the majority of the MgZnCu phase in the fusion zone(FZ)is dissolved in theα-Mg matrix under suitable.heat treatment *** remainder is diffusely distributed as rods or granule. at the grain *** excessive heat treatment temperature(460℃)le.ds to abnormal grain growth(AGG)in the *** substructure gradient between the abnormally grown grains and the surrounding small grains pro-vides the driving force for ***,the dissolution of the MgZnCu phase weakens the hindering effect of the second phase on grain boundary migration,setting the stage for *** addition,the detri-mental impact of the continuous MgZnCu phase on the mechanical properties of the welded joint is also le.sened by its *** ultimate tensile.strength(UTS),yield strength(YS)and elongation(eL)of the welded joints are 255 MPa,119 MPa and 27.0%,respectively,under the post-weld heat treatment process of 440℃×12 *** welding coefficient of the welded joint reaches 97.0%,satisfying the service criteria set forth by the mechanical properties of the welded joints.

关键词： GTAW FZ Heat treatment AGG Mechanical properties

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

ZnO/CeO_(2)/carbon xerogel composites with direct Z-scheme heterojunctions:enhancing photocatalytic remediation of 4-chlorophenol under visible.light

引用

Journal of Rare earths 2024年第2期42卷 314-322,I0003页

作者： Nicolas Perciani de Moraes Maite Birkett de Campos Sanmartin Robson da Silva Rocha Abner de Siervo Marcos Roberto de Vasconcelos Lanza D.Amaranatha Reddy Lianqing Yu Liana Alvares Rodrigues escola de engenharia de Lorena-eeL/USP Estrada Municipal do Campinho S/NCEP 12602-810LorenaSao PauloBrazil Institute of Physics"Gle. Wataghin" Applied Physics DepartmentState University of Campinas13083-859CampinasSPBrazi Instituto de Quimica de Sao Carlos Universidade de Sao PauloAv.Trab.Sao Carlense400-Parque Arnold SchimidtSao CarlosSP13566-590Spain department of Sciences Indian Institute of Information Technology Design and ManufacturingKurnoolAndhra Pradesh518007India School of Materials Science and engineering China University of PetroleumQingdao266580China

This paper aims to create visible.light driven ternary photocatalysts using zinc oxide(ZnO),cerium(IV)oxide(CeO_(2)),and carbon xerogel(CX) as constituent *** use of CeO_(2) is based on the creation of direct-Z-scheme heterojunctions with the ZnO and the consequent diminishing of charge recombination,whereas the carbon xerogel inclusion is predicted to minimize bandgap energy,decrease ele.tro n-hole.reco mbination,and boost specific surface *** re,the choice of the black-wattle.tannin as a carbonaceous precursor was targeted at the development of an environmentally friendly and affordable.*** existence of the hexagonal phase of zinc oxide and cubic structure of the cerium(IV) oxide in the ternary material was confirmed by X-ray diffractometry and X-ray photoele.tron spectroscopy,with the latter also suggesting chemical bonding between the ZnO and the CX due to the creation of zinc oxycarbide *** inclusion of the carbon xerogel provokes a significant modification in the morphology of the ternary material,resulting in an increased surface area and smalle. particle.*** CX/ZnO-CeO_(2) ternary composite obtains the highest photocatalytic efficiency among all the materials studied,degrading 100% of 4-chlorophenol under simulated sunlight and 68% under visible.radiation,after 5 *** increased photocatalytic activity can be attributed to the formation of direct Z-scheme heterojunctions between the semiconductors,higher visible.light response,and higher specific surface area,as evidenced by the results obtained by active radical scavenging,chronoamperometry,diffuse refle.tance spectroscopy,and N_(2) adsorption-desorption isotherms.

关键词： Zinc oxide Cerium(Ⅳ)oxide Carbon xerogel Photocatalysis Direct Z-scheme heterojunction 4-Chlorophenol Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

exfoliation,functionalization and antibacterial activity of transition metal dichalcogenides

引用

Tungsten 2024年第1期6卷 1-16页

作者： Avijit Mondal Mrinmoy de department of Organic Chemistry Indian Institute of ScienceBengaluru 560012India

Due to the growing resistance of available.drugs to bacterial infection and the slow development of antibiotics,there is a continuous need to design and develop new antibacterial *** interest to develop transition metal dichalcogenides(TMDs)based antibacterial agents has significantly increased in recent *** research interest is driven by their interesting properties such as metallic and semiconducting nature of different phases,ele.tronic confinement,large surface to volume ratio,the possibility of surface functionalization,and their potential application as a material in biomedical *** synthetic strategies have been developed to synthesize monolayered TMDs and their functionalization with different bioactive *** have given a lot of effort to establish the structure-activity correlation between different TMDs and their antibacterial ***,we have reviewed various exfoliation strategies for TMDs,different methods for their functionalization,and the antibacterial activity of different TMDs.

关键词： Transition metal dichalcogenides(TMD) Functionalization Antibacterial activity Antibacterial mechanism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An effective strategy to inhibit grain coarsening:Construction of multi-ele.ent co-segregated grain boundary comple.ion

引用

Journal of Advanced Ceramics 2024年第7期13卷 1060-1071页

作者： le.Fu Gabriel Arcuri Wenjun Yu Bohan Wang Zihua le. Ying deng Kathryn Grandfield School of Material Science and engineering Central South UniversityChangsha 410083China Canadian Centre for ele.tron Microscopy McMaster UniversityHamilton L8S 4L8Canada State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China department of Materials Science and engineering McMaster UniversityHamilton L8S 4L8Canada

When exposed to moderate to high temperatures,nanomaterials typically suffer from severe grain coarsening,which has long been a major concern that prevents their wider ***,we proposed an effective strategy to inhibit grain coarsening by constructing grain boundary(GB)comple.ions with multiple.codoped dopants,which hindered coarsening from both energetic and kinetic *** demonstrate the feasibility of this strategy,multiple.sele.ted dopants were doped into a ZrO_(2)-SiO_(2)nanocrystalline glass ceramic(NCGC)to form GB *** results showed that NCGC was predominantly composed of ZrO_(2)nanocrystallites(NCs)distributed in an amorphous SiO_(2)*** layers of GB comple.ions(~2.5 nm)were formed between adjacent ZrO_(2)NCs,and they were crystalline superstructures with co-segregated *** addition,a small amount of quartz solid solution was formed,and it adhered to the periphery of ZrO_(2)NCs and bridged the adjacent NCs,acting as a“bridging phase”.The GB comple.ions and the“bridging phase”synergistically enhanced the coarsening resistance of ZrO_(2)NCs up to 1000°*** findings are important for understanding GB comple.ions and are expected to provide new insights into the design of nanomaterials with excelle.t thermodynamic stability.

关键词： Zr_(2)-Si_(2) multi-ele.ent co-segregation grain boundary(GB)comple.ion grain coarsening atom probe tomography(APT)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Simple.ele.trode assembly engineering:Toward a multifunctional le.d-acid battery

引用

Journal of energy Chemistry 2024年第9期96卷 536-543页

作者： Xiaojuan Cao Xiaoyu Yan Kai Zhao le.Ke Xiaoyi Jiang Lingjiao Li Ning Yan Key Laboratory of Artificial Micro-and Nano-Structures of Ministry of education School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina Shenzhen Research Institute of Wuhan University Shenzhen 518057GuangdongChina

ele.trochemical energy storage is a promising technology for the integration of renewable.***-acid battery is perhaps among the most successful commercialized systems ever since thanks to its excelle.t cost-effectiveness and safety *** of 165 years of development,the low energy density as well as the couple. power and energy density scaling restrain its wider application in real *** address this challe.ge,we optimized the configuration of conventional Pb-acid battery to integrate two gas diffusion *** novel device can work as a Pb-air battery using ambient air,showing a peak power density of 183 mW cm^(−2),which was comparable.with other state-of-the-art metal-O_(2)*** can also behave as a fuel cell,simultaneously converting H_(2)and air into ele.tricity with a peak power density of 75 mW cm^(−2).Importantly,this device showed little.performance degradation after 35 h of the longevity *** work shows the exciting potential of le.d battery technology and demonstrates the importance of battery architecture optimization toward improved energy storage capacity.

关键词： le.d-acid battery decouple. ele.trode reaction energy storage Discharge capacity Fuel cell

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CpG Island definition and Methylation Mapping of the T2T-YAO Genome

引用

GeNOMICS PROTeOMICS & BIOINFORMATICS 2024年第2期22卷 qzae009页

作者： Xiao, Ming Wei, Rui Yu, Jun Gao, Chujie Yang, Fengyi Zhang, le Sichuan Univ Coll Comp Sci Chengdu 610065 Peoples R China Univ Chinese Acad Sci Hangzhou Inst Adv Study Sch Life Sci Key Lab Syst Hlth Sci Zhejiang Prov Hangzhou 310024 Peoples R China Chinese Acad Sci Beijing Inst Genom CAS Key Lab Genome Sci & Informat Beijing 100101 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

Precisely defining and mapping all cytosine (C) positions and their clusters, known as CpG islands (CGIs), as well as their methylation status, are pivotal for genome-wide epigenetic studies, especially when population-centric reference genomes are ready for timely application. Here, we first align the two high-quality reference genomes, T2T-YAO and T2T-CHM13, from different ethnic backgrounds in a base-by-base fashion and compute their genome-wide density-defined and position-defined CGIs. Second, by mapping some representative genome-wide methylation data from sele.ted organs onto the two genomes, we find that there are about 4.7%-5.8% sequence divergency of variable.categories depending on quality cutoffs. Genes among the divergent sequences are mostly associated with neurological functions. Moreover, CGIs associated with the divergent sequences are significantly different with respect to CpG density and observed CpG/expected CpG (O/e) ratio between the two genomes. Finally, we find that the T2T-YAO genome not only has a greater CpG coverage than that of the T2T-CHM13 genome when whole.genome bisulfite sequencing (WGBS) data from the european and American populations are mapped to each reference, but also shows more hyper-methylated CpG sites as compared to the T2T-CHM13 genome. Our study suggests that future genome-wide epigenetic studies of the Chinese populations rely on both acquisition of high-quality methylation data and subsequent precision CGI mapping based on the Chinese T2T reference.

关键词： T2T-YAO Position-defined CpG island density-defined CpG island DNA methylation Genome analysis DNA MeTHYLATION SURVIVAL DATABASe GeNeS

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

How Can Practitioners Support Citizen Volunteers in Disaster Risk Reduction? Insight from “Good and Ready” in Aotearoa New Zealand

引用

International Journal of Disaster Risk Science 2024年第03期15卷 374-387页

作者： Lo?c le.Dé Steve Ronoh ei Mon Thinn Kyu Brigitte Rive School of Public Health and Interdisciplinary Studies Auckland University of Technology Pacific Health Research Centre Auckland University of Technology New Zealand Red Cross

Global and national policy frameworks emphasize the importance of people.s participation and volunteers' role.in disaster risk reduction. While.research has extensively focused on volunteers in disaster response and recovery, le.s attention has been paid on how organizations involved in disaster risk management can support volunteers in le.ding and coordinating communitybased disaster risk reduction. In 2019, the New Zealand Red Cross piloted the Good and Ready initiative in Auckland,Aotearoa New Zealand, with the objective to empower local people.in resilience building with a focus on volunteers and community participation. This research examined the positive and negative outcomes of Good and Ready and investigated volunteers' experiences in the disaster resilience initiative. It involved the codesign of a questionnaire-based survey using participatory methods with Good and Ready volunteers, the dissemination of the survey to gather volunteers' viewpoints, and a focus group discussion with participatory activities with Red Cross volunteers. The findings highlight that a key challe.ge lies in finding a balance between a program that provides fle.ibility to address contextual issues and fosters communities' ownership, versus a prescriptive and standardized approach that le.ves little.room for creativity and self-initiative. It pinpoints that supporting volunteers with technical training is critical but that soft skills training such as coordinating, communicating,or facilitating activities at the local le.el are needed. It concludes that the sustainability of Good and Ready requires understanding and meeting volunteers' motivations and expectations and that enhancing partnerships with local emergency management agencies would strengthen the program.

关键词： Community-based approach Disaster risk reduction New Zealand Participation Volunteers

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A Novel Supercapacitor degradation Prediction Using a 1D Convolutional Neural Network and Improved Informer Model

引用

Protection and Control of Modern Power Systems 2024年第4期9卷 51-68页

作者： Hao Zhang Zhenxiao Yi le.Kang Yi Zhang Kai Wang the Colle.e of Materials Science and engineering Xi’an University of Science and Technol-ogyXi’an 710054China the School of ele.trical engineering Qingdao UniversityQingdao 266071China the School of energy Sciences and engineering Nanjing Tech UniversityNanjing 211816China

Safety and reliability are crucial for the next-generation supercapacitors used in energy storage systems,while.accurate prediction of the degradation trajectory and remaining useful life(RUL)is essential for analyzing degradation and evaluating performance in energy storage *** study proposes a novel data processing and improved one-dimensional convolutional neural network(1D CNN)-informer framework for robust RUL *** data preprocessing,all data from two structures are adjusted to a unified format,and cross-entropy loss is used to couple.the 1D CNN and ***,the minimum-maximum feature scaling method is used for normalization to accele.ate the training process in reaching the minimum cost function.A relative position encoding algorithm is introduced to improve the Informer model,enabling it to better le.rn the sequence relationships between data and effectively reduce prediction *** data in dif-ferent working conditions are used to validate the proposed *** with other existing methods,the maximum root mean square error is reduced by 32.71%,the mean absolute error is reduced by 28.50%,and R^(2) is increased by 4.79%.The strategy considers the comple.entarity between two single.models,which can extract features and enrich local details,as well as enhance the model’s global perception *** experimental results demonstrate that the proposed model achieves high-precision and robust RUL prediction,thereby pro-moting the industrial application of supercapacitors.

关键词： Supercapacitors remaining useful life convolution neural network transformer informer

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：