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Pyrometallurgical recycling of end-of-life lithium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1554-1571页

作者： Juheon lee Kwang Won Park il Sohn Sanghoon lee Department of Materials Science and Engineering Seoul 03722Korea Yonsei Industry Cooperation Center Yonsei UniversitySeoul 03722Korea RD Solution Wanju gunJeollabuk do 55365Korea

The global importance of lithium-ion batteries(LIBs)has been increasingly underscored with the advancement of high-performance energy storage ***,the end-of-life of these batteries poses significant challenges from environmental,economic,and resource management *** review paper focuses on the pyrometallurgy-based recycling process of lithium-ion batteries,exploring the fundamental understanding of this process and the importance of its *** on the high energy consumption and emission gas issues of the pyrometallurgical recycling process,we systematically analyzed the capital-intensive nature of this process and the resulting technological ***,we conducted an in-depth discussion on the future research directions to overcome the existing technological barriers and *** review will provide valuable insights for researchers and industry stakeholders in the battery recycling field.

关键词： spent lithium-ion batteries recycling sustainability lithium valuable metal

Influence of Aging Treatment on the Mechanical and Electrical Properties of Cu-0.5%Be Alloy

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Journal of Materials Science & Technology 2008年第1期24卷 120-122页

作者： Min Ryou byoung-Soo lee Myung-Ho Kim School of Materials Science and Engineering Inha University 253 Yonghyun-DongNam-GuIncheon 402-751Korea Nano Material Team Korea Institute of Industrial Technology 7-47Songdo-DongYeonsu-GuIncheon 406-130Korea

The influence of aging treatment on the microstructure,mechanical properties and electrical conductivity of Cu-0.5 wt pct Be alloy for connector material applications was *** properties of mechanical strength and electrical conductivity increase with increasing aging temperature and *** of the aged Cu-Be alloy revealed that grain size and fraction of low angle and high angle grain boundary were not greatly changed;however,transmission electron microscopy （TEM） analysis exhibited that beryllides precipitation （CoBe and NiBe） with a size of 50 nm were distributed in *** was,therefore concluded that these beryllide precipitates improved the mechanical strength and also it was favor in improvement of electrical conductivity.

关键词： Cu-Be alloy Connector materials Beryllide precipitates

Emotional inference by means of Choquet integral and λ-fuzzy measurement in consideration of ambiguity of human mentality

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Journal of Central South University 2016年第1期23卷 160-168页

作者： KWON il-kyoung lee Sang-yong Division of Computer Science & Engineering Kongju National University Department of Computer Science & Engineering Kongju National University

Research on human emotions has started to address psychological aspects of human nature and has advanced to the point of designing various models that represent them quantitatively and systematically. Based on the findings, a method is suggested for emotional space formation and emotional inference that enhance the quality and maximize the reality of emotion-based personalized services. In consideration of the subjective tendencies of individuals, AHP was adopted for the quantitative evaluation of human emotions, based on which an emotional space remodeling method is suggested in reference to the emotional model of Thayer and Plutchik, which takes into account personal emotions. In addition, Sugeno fuzzy inference, fuzzy measures, and Choquet integral were adopted for emotional inference in the remodeled personalized emotional space model. Its performance was evaluated through an experiment. Fourteen cases were analyzed with 4.0 and higher evaluation value of emotions inferred, for the evaluation of emotional similarity, through the case studies of 17 kinds of emotional inference methods. Matching results per inference method in ten cases accounting for 71% are confirmed. It is also found that the remaining two cases are inferred as adjoining emotion in the same section. In this manner, the similarity of inference results is verified.

关键词： fuzzy measure fuzzy integral emotional model emotion space AHP fuzzy inference system Choquet integral

Effect of Annealing Atmosphere on the Mechanical Property of Free-cutting Phosphor Bronze Alloy

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Journal of Materials Science & Technology 2008年第1期24卷 115-119页

作者： byoung-Soo lee Hoon Cho Hyung-Ho Jo Nano Material Team Advanced Material Division Korea Institute of Industrial Technology Incheon 406-800 Korea

The present work is focused on the influence of annealing atmosphere on the microstructure and mechanical property of free-cutting phosphor bronze *** annealing of the alloy was conducted in the three kinds of annealing atmosphere such as air,vacuum and *** annealing,a discernable difference in recystallized grain size and lead particle size was not appeared with different annealing *** tensile strength of the alloy annealed in air or nitrogen atmosphere was higher than that of those annealed in vacuum *** thecase of the alloy annealed in vacuum atmosphere,the mechanical strength was reduced by vaporization of *** the case of annealing in nitrogen and in air atmosphere,the sweating of lead was ***,the inverse segregation of lead was suppressed by copper oxide layer on the surface annealed in *** copper oxide layer leads to a decrease of the yield during fabrication process. Therefore,annealing of the alloy in nitrogen atmosphere is favorable in terms of the mechanical strength and yield.

关键词： Free-cutting Phosphor bronze alloy Inverse segregation Vaporization Sweating

Generation of brain vascular heterogeneity:recent advances from the perspective of angiogenesis

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Neural Regeneration Research 2025年第7期20卷 2013-2014页

作者： Nathanael J.lee Ryota L.Matsuoka Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Molecular Medicine Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOHUSA

Heterogeneous proper t i es of vascular endothelial cells in the brain:The brain displays large energy dynamics and consumption,and this high level of metabolic demands is fulfilled by a continuous supply of glucose and oxygen through its vascular *** vasculature consists of highly divergent blood vessel branches,giving rise to a dense network of capillaries that supply blood to all cells across the *** elaborated vascular network is thought to develop via angiogenesis,a process in which new blood vessels grow from pre-existing *** capillaries exhibit organotypic features distinct from other tissues and are formed primarily by two major endothelial cell(EC)types:those that form the semi-permeable blood-brain barrier(BBB)and those that develop highly permeable pores known as fenestrae(Matsuoka et al.,2022).The structural and functional differences between BBB and fenestrated vascular ECs represent a fundamental feature of brain vasculature and form the foundation for both brain function and homeostasis.

关键词： angiogenesis homeostasis network

Acousto-Optics Tunable Filter Based on a Hollow Optical Fiber for Broadband Polarization Switch Application

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光学学报 2003年第S1期23卷 193-194页

作者： Jaewon lee Jaewang Yu Sangsoo Choi Kyunghwan Oh Dong il Yum byoung Yoon Kim Department of Information and Communications Kwang- Ju Institute of Science and Technology Kwangju Buk-gu 500-712 Rep. of Korea Department of Physics Korea Advanced Institute Science and Technology Taejon 305701 Rep. of Korea

A novel acousto-optic tunable filter (AOTF) using a hollow optical fiber (HOF) is proposed. Its broadband rejection over 100nm was observed and high polarization dependence as a polarization switch is discussed.

关键词： Hollow Optical Fiber hollow optical fiber tunable filter

TGF-β2 downregulates osteogenesis under inflammatory conditions in dental follicle stem cells

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International Journal of Oral Science 2018年第4期10卷 232-243页

作者： Soyoun Um Joo-Hee lee byoung-Moo Seo Biotooth Engineering Lab Dental Research InstituteDental Regenerative BiotechnologyDepartment of Dental ScienceSchool of DentistrySeoul National University Biotooth Engineering Lab Department of Oral and Maxillofacial Surgery and Craniomaxillofacial Life ScienceDental Research InstituteSchool of DentistrySeoul ational University

Bone formation is important for the reconstruction of bone-related structures in areas that have been damaged by *** conditions such as those that occur in patients with rheumatoid arthritis, cystic fibrosis, and periodontitis have been shown to inhibit osteoblastic differentiation. This study focussed on dental follicle stem cells(DFSCs), which are found in developing tooth germ and participate in the reconstruction of alveolar bone and periodontal tissue in periodontal disease. After bacterial infection of inflamed dental tissue, the destruction of bone was observed. Currently, little is known about the relationship between the inflammatory environment and bone formation. Osteogenic differentiation of inflamed DFSCs resulted in decreased alkaline phosphatase(ALP) activity and alizarin red S staining compared to normal DFSCs. Additionally, in vivo transplantation of inflamed and normal DFSCs demonstrated severe impairment of osteogenesis by inflamed DFSCs. Protein profile analysis via liquid chromatography coupled with tandem mass spectrometry was performed to analyse the differences in protein expression in inflamed and normal tissue. Comparison of inflamed and normal DFSCs showed significant changes in the level of expression of transforming growth factor(TGF)-β2. Porphyromonas gingivalis(P.g.)-derived lipopolysaccharide(LPS) was used to create in vitro inflammatory conditions similar to periodontitis. The osteogenic differentiation of LPS-treated DFSCs was suppressed, and the cells displayed low levels of TGF-β1 and high levels of TGF-β2. DFSCs treated with TGF-β2 inhibitors showed significant increases in alizarin red S staining and ALP activity. TGF-β1 expression was also increased after inhibition of TGF-β2. By examining inflamed DFSCs and LPS-triggered DFSCs, these studies showed both clinically and experimentally that the increase in TGF-β2 levels that occurs under inflammatory conditions inhibits bone formation.

关键词： TGF downregulates osteogenesis under inflammatory conditions in dental follicle stem cells

Development of site suitability analysis system for riverbank filtration

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Water Science and Engineering 2010年第1期3卷 85-94页

作者： Sang-il lee Sang-sin lee Department of Civil and Environmental Engineering Dongguk University

Site selection plays a crucial role in riverbank filtration for sustainable water availability and quality. Choosing the most appropriate from among multiple candidate sites requires a complex procedure, involving many tangibles and intangibles. In this study, the Analytic Hierarchy Process （AHP）, which selects the optimal alternative by hierarchically classifying various attributes and then quantifying the importance of each attribute, was used to prioritize candidate locations for riverbank filtration. A GIS-based computer program was developed to automate the assessment process. The developed software was applied to the Han River in Korea. Analysis of four candidate sites reveals that a site that has better water quality and connectivity to the neighboring purification facility is more suitable than other locations.

关键词： riverbankfiltration AHP site suitability," Han River

Tailoring Light–Matter Interactions in Overcoupled Resonator for Biomolecule Recognition and Detection

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Nano-Micro Letters 2025年第1期17卷 262-280页

作者： Dongxiao Li Hong Zhou Zhihao Ren Cheng Xu Chengkuo lee Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Center for Intelligent Sensors and MEMS(CISM) National University of SingaporeSingapore 117608Singapore

Plasmonic nanoantennas provide unique opportunities for precise control of light–matter coupling in surface-enhanced infrared absorption(SEIRA)spectroscopy,but most of the resonant systems realized so far suffer from the obstacles of low sensitivity,narrow bandwidth,and asymmetric Fano resonance ***,we demonstrated an overcoupled resonator with a high plasmon-molecule coupling coefficient(μ)(OC-Hμresonator)by precisely controlling the radiation loss channel,the resonator-oscillator coupling channel,and the frequency detuning *** observed a strong dependence of the sensing performance on the coupling state,and demonstrated that OC-Hμresonator has excellent sensing properties of ultra-sensitive(7.25%nm^(−1)),ultra-broadband(3–10μm),and immune asymmetric Fano *** characteristics represent a breakthrough in SEIRA technology and lay the foundation for specific recognition of biomolecules,trace detection,and protein secondary structure analysis using a single array(array size is 100×100μm^(2)).In addition,with the assistance of machine learning,mixture classification,concentration prediction and spectral reconstruction were achieved with the highest accuracy of 100%.Finally,we demonstrated the potential of OC-Hμresonator for SARS-CoV-2 *** findings will promote the wider application of SEIRA technology,while providing new ideas for other enhanced spectroscopy technologies,quantum photonics and studying light–matter interactions.

关键词： Plasmonic nanoantennas Light-matter interaction Surface-enhanced infrared absorption Overcoupled Biosensing