检索结果-南通市图书馆

Value-added recycling for spent lithium-ion batteries

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2023年第8期66卷 2160-2162页

作者： xiaotong wang Zhenyi Gu Xinglong Wu MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal UniversityChangchun130024China Department of Chemistry Northeast Normal UniversityChangchun130024China

This highlight is based on a recent work by ***,***,*** and coworkers published in Nature Sustainability[1].This work blazes a new trail to recycle spent lithium-ion batteries(LIBs)by upcycling the exhausted cathode t... 详细信息

关键词： lithium cycling trail

Upcycling the spent graphite/LiCoO_(2) batteries for high-voltage graphite/LiCoPO_(4)-co-workable dual-ion batteries

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1745-1751页

作者： Miao Du Hongyan Lü Kaidi Du Shuohang Zheng xiaotong wang xiaotong Deng Ronghua Zeng Xinglong Wu Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education Northeast Normal UniversityChangchun 130024China Faculty of Chemistry Northeast Normal UniversityChangchun 130024China School of Chemistry South China Normal UniversityGuangzhou 510006China

The worldwide proliferation of portable electronics has resulted in a dramatic increase in the number of spent lithium-ion batteries(LIBs).However,traditional recycling methods still have limitations because of such huge amounts of spent ***,we proposed an ecofriendly and sustainable double recycling strategy to concurrently reuse the cathode(LiCoO_(2))and anode(graphite)materials of spent LIBs and recycled LiCoPO_(4)/graphite(RLCPG)in Li^(+)/PF^(-)_(6) co-de/intercalation dual-ion *** recycle-derived dualion batteries of Li/RLCPG show impressive electrochemical performance,with an appropriate discharge capacity of 86.2 mAh·g^(-1) at25 mA·g^(-1) and 69%capacity retention after 400 *** recycling of the cathode and anode from spent LIBs avoids wastage of resources and yields cathode materials with excellent performance,thereby offering an ecofriendly and sustainable way to design novel secondary batteries.

关键词： recycle lithium cobalt oxide lithium cobalt phosphate graphite dual-ion batteries spent lithium-ion batteries

Sharper Hardy Uncertainty Relations on Signal Concentration in Terms of Linear Canonical Transform

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第5期33卷 1317-1325页

作者： Xiaogang XU Guanlei XU xiaotong wang College of Computer and Information Engineering Zhejiang Gongshang University

Linear canonical transform is of much significance to optics and information science. Hardy uncertainty principle, like Heisenberg uncertainty principle, plays an important role in various fields. In this paper, four new sharper Hardy uncertainty relations on linear canonical transform are derived. These new derived uncertainty relations are connected with the linear canonical transform parameters and indicate new insights for signal energy ***, for certain transform parameters, e.g. b = 0, these new proposed uncertainty relations break the traditional counterparts in signal energy concentration, as will result in new physical interpretation in terms of uncertainty principle. Theoretical analysis and numerical examples are given to show the efficiency of these new relations.

关键词： Information science Uncertainty Transforms Optics

Generalized Uncertainty Inequalities on Fisher Information Associated with LCT

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Beijing Institute of Technology 2021年第3期30卷 217-227页

作者： Guanlei Xu Xiaogang Xu xiaotong wang School of Computer and Information Engineering Zhejiang Gongshang UniversityHangzhou 310018China

Uncertainty principle plays an important role in multiple fields such as physics,mathem-atics,signal processing,*** linear canonical transform(LCT)has been used widely in optics and information processing and so *** this paper,a few novel uncertainty inequalities on Fisher information associated with linear canonical transform are *** newly deduced uncer-tainty relations not only introduce new physical interpretation in signal processing,but also build the relations between the uncertainty lower bounds and the LCT transform parameters a,b,c and d for the first time,which give us the new ideas for the analysis and potential *** addi-tion,these new uncertainty inequalities have sharper and tighter bounds which are the generalized versions of the traditional ***,some numeric examples are given to demon-strate the efficiency of these newly deduced uncertainty inequalities.

关键词： linear canonical transform(LCT) Fisher information uncertainty principle

Integrated framework for space-and energy-efficient retrofitting in multifunctional buildings:A synergy of agent-based modeling and performance-based modeling

在线全文

学校读者我要写书评

暂无评论

Building Simulation 2024年第9期17卷 1579-1600页

作者： Yuchi Shen Xinyi Hu xiaotong wang Mengting Zhang Lirui Deng Wei wang School of Architecture Southeast UniversityNanjingJiangsu Province210096China Department of Electrical Engineering and Automation Aalto University02150EspooFinland Faculty of Innovation and Design City University of MacaoMacaoChina Key Laboratory of Urban and Architectural Heritage Conservation(Southeast University) Ministry of EducationNanjingChina

This research investigates retrofitting strategies for multifunctional spaces within educational buildings,employing agent-based and performance-based modeling to support *** experimental matrix was developed,reflecting three usage scenarios(reading,exhibition,lecture)across four retrofitting *** agent-based model was developed to delineate intricate human behaviors in space and examined the self-organizing behaviors of 30 agents for each scheme in every scenario,evaluating six metrics on spatial efficiency and visual *** models,derived from real data and processed through DesignBuilder software,evaluated three metrics:energy use,thermal comfort,and visual *** research then incorporated metrics from the agent-based model and performance simulation to develop a method for discussing the decision-making process in retrofit *** findings indicate that the optimal retrofitting solution for multifunctional spaces is heavily influenced by the distribution of usage *** the substantial influence of space metrics on selecting the optimal retrofit scheme,the proposed framework effectively facilitates decision-making for building retrofits by providing a holistic evaluation of both spatial and energy criteria.

关键词： building retrofit agent-based model human behavior simulation measurement of space performance simulation

Impact of interlayer on moisture characteristics of reclaimed soil backfilled with Yellow River sediments

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

International Journal of Agricultural and Biological Engineering 2020年第1期13卷 153-159页

作者： xiaotong wang Zhenqi Hu Yusheng Liang Institute of Land Reclamation and Ecological Restoration China University of Mining and Technology(Beijing)Beijing 100083China China College of Environment Science and Spatial Informatics China University of Mining and TechnologyXuzhou 221116China

Underground coal mining causes land subsidence,and backfilling with Yellow River sediment is an effective reclamation technology to restore farmland in *** date,two-layer soil reconstructed(TSR)for subsided land reclamation resulted in poor capacity to retain *** solve this problem,multi-layered soil reconstructed(MSR),sandwiching soil interlayers between sediment,was developed as a new reclamation strategy with Yellow River *** order to evaluate the impact of soil interlayer on moisture characteristics,laboratory experiments of infiltration and evaporation were *** control treatments(CK1,CK2)and four experimental treatments(T1-T4)were ***1 was undamaged farmland,CK2 was conventional reconstructed two-layers soil profile(filled sediment with 40 cm soil cover).T1-T4 were multiple-layers soil profiles sandwiching different structures of soil interlayers between sediment *** results indicated that putting interlayers into sediment reduced water leakage and water evaporation,improved the water-holding capacity of conventional two-layer soil *** total thickness of soil interlayers of 30 cm(T3 and T4)was better than 20 cm(T1 and T2)and two soil interlayers(T2)were better than one(T1)on water-holding ***,the best reconstructed soil profile was T3,sandwiched two soil interlayer and the first thickness was 20 *** treatment had the greatest improvement on soil water holding capacity with an increase of 49.14%compared to CK2 at the end of the evaporation and was closest to CK1(402.31 mm).This study provided experimental evidence that compares with TSR,MRS improved the moisture characteristics of backfilling with Yellow River sediment.

关键词： land reclamation Mining subsidence Yellow River sediment multi-layered soil reconstructed moisture characteristics

A comprehensive study on fault tolerance in stream processing systems

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

Frontiers of Computer Science 2022年第2期16卷 80-97页

作者： xiaotong wang Chunxi ZHANG Junhua FANG Rong ZHANG Weining QIAN Aoying ZHOU School of Data Science and Engineering East China Normal UniversityShanghai 200062China Advanced Data Analytics Laboratory of Soochow University Suzhou 215006China

Stream processing has emerged as a useful technology for applications which require continuous and low latency computation on infinite streaming *** stream processing systems(SPSs)usually require distributed deployment on clusters of servers in face of large-scale of data,it is especially common to meet with failures of processing nodes or communication networks,but should be handled seriously considering service quality.A failed system may produce wrong results or become unavailable,resulting in a decline in user experience or even significant financial ***,a large amount of fault tolerance approaches have been proposed for *** approaches often have their own priorities on specific performance concerns,e.g.,runtime overhead and recovery ***,there is a lack of a systematic overview and classification of the state-of-the-art fault tolerance approaches in SPSs,which will become an obstacle for the development of ***,we investigate the existing achievements and develop a taxonomy of the fault tolerance in ***,we propose an evaluation framework tailored for fault tolerance,demonstrate the experimental results on two representative open-sourced SPSs and exposit the possible disadvantages in current ***,we specify future research directions in this domain.

关键词： fault tolerance performance evaluation stream processing

Magnetic resonance perfusion imaging evaluation in perfusion abnormalities of the cerebellum after supratentorial unilateral hyperacute cerebral infarction

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2012年第12期7卷 906-911页

作者： Pan Liang Yunjun Yang Weijian Chen Yuxia Duan Hongqing wang xiaotong wang Department of Radiology First Affiliated Hospital of Wenzhou Medical College Wenzhou 325000 Zhejiang Province China Second Affiliated Hospital of Wenzhou Medical College Wenzhou 325000 Zhejiang Province China

Magnetic resonance imaging （MRI） data of 10 patients with hyperacute cerebral infarction （≤6 hours） were retrospectively *** patients exhibited perfusion defects on negative enhancement integral maps,four patients exhibited perfusion differences in pseudo-color on mean time to enhance maps,and three patients exhibited perfusion differences in pseudo-color on time to minimum *** susceptibility contrast-enhanced perfusion weighted imaging revealed a significant increase in region negative enhancement integral in the affected hemisphere of patients with cerebral *** results suggest that dynamic susceptibility contrast-enhanced perfusion weighted imaging can clearly detect perfusion abnormalities in the cerebellum after unilateral hyperacute cerebral infarction.

关键词： magnetic resonance imaging magnetic resonance-perfusion-weighted imaging cerebral infarction cerebral perfusion functional neurological deficit

Factors Acquisition and Content Estimation of Farmland Soil Organic Carbon Based upon Internet of Things

在线全文

学校读者我要写书评

暂无评论

Chinese Geographical Science 2017年第3期27卷 431-440页

作者： WU Qiulan LIANG Yong LI Ying wang Xizhi YANG Lei wang xiaotong School of Information Science and Engineering Shandong Agricultural University Tai' an 271018 China School of Economicsand Management Shandong Agricultural University Tai' an 271018 China Institute of Agricultural Sciences of Yanzhou District inJining Yanzhou 272100 China School of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijing 100083 China

Aiming at the shortage of sufficient continuous parameters for using models to estimate farmland soil organic carbon(SOC) content, an acquisition method of factors influencing farmland SOC and an estimation method of farmland SOC content with Internet of Things(IOT) are proposed in this paper. The IOT sensing device and transmission network were established in a wheat demonstration base in Yanzhou Distict of Jining City, Shandong Province, China to acquire data in real time. Using real-time data and statistics data, the dynamic changes of SOC content between October 2012 and June 2015 was simulated in the experimental area with SOC dynamic simulation model. In order to verify the estimation results, potassium dichromate external heating method was applied for measuring the SOC content. The results show that: 1) The estimated value matches the measured value in the lab very well. So the method is feasible in this paper. 2) There is a clear dynamic variation in the SOC content at 0.2 m soil depth in different growing periods of wheat. The content reached the highest level during the sowing period, and is lowest in the flowering period. 3) The SOC content at 0.2 m soil depth varies in accordance with the amount of returned straw. The larger the amount of returned straw is, the higher the SOC content.

关键词： Internet of Things(IOT) soil organic carbon(SOC) factors acquisition SOC content estimation Soil-C model