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Jong-Hyeon Lee

Bio: Jong-Hyeon Lee is an academic researcher from Chungnam National University. The author has contributed to research in topics: Molten salt & Combustion. The author has an hindex of 28, co-authored 260 publications receiving 2923 citations. Previous affiliations of Jong-Hyeon Lee include Yonsei University & Changwon National University.


Papers
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TL;DR: In this paper, a chemical reduction method involving the intermediate preparation of Ag 2 O colloidal dispersion in the presence of sodium dodecyle sulfate CH 3 (CH 2 ) 11 OSO 3 Na as a surfactant was presented.

160 citations

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TL;DR: In this article, a review of the state-of-the-art in the field of solid-phase combustion synthesis is presented, focusing on the relationship between combustion parameters and structure/properties of the produced nanomaterials.

144 citations

Journal ArticleDOI
TL;DR: In this paper, a three-ply clad sheet, comprised of austenitic stainless steel (STS304), aluminum (Al1050) and copper (C1220), was fabricated by means of a hot-rolling process at 350°C and the mechanical and interfacial properties were investigated for use in cookware applications.

129 citations

Journal ArticleDOI
TL;DR: By crushing ITO glass to micron size particles by HEBM, it is possible to extract higher amount of indium at room temperature than that by conventional methods using only conventional shredding machines.

96 citations

Journal ArticleDOI
TL;DR: The PCR-based typing system described in this study demonstrates a reliable and unambiguous detection method for SLA class II alleles and will be a valuable tool for studying the influence of SLA diversity on various immunological, pathological and physiological traits in outbred pigs.
Abstract: The highly polymorphic swine leucocyte antigen (SLA) genes are among the most important determinants of swine immune responses to disease and vaccines. Accurate and effective SLA genotyping methods are required to understand how SLA gene polymorphisms affect immunity, especially in outbred pigs with diverse genetic backgrounds. In this study, we present a simple and rapid molecular-based typing system for characterizing SLA class II alleles of the DRB1, DQB1 and DQA loci. This system utilizes a set of 47 sequence-specific PCR primers developed to differentiate alleles by groups that share similar sequence motifs. We applied this typing method to investigate the SLA class II diversity in four populations of outbred pigs (n = 206) and characterized a total of 19 SLA class II haplotypes, six of which were shared by at least three of the sampled pig populations. We found that Lr-0.1 (DRB1*01XX-DQB1*01XX-DQA*01XX) was the most prevalent haplotype with a combined frequency of 16.0%, followed by Lr-0.2 (DRB1*02XX-DQB1*02XX-DQA*02XX) with 14.6% and Lr-0.15b (DRB1*04XX-DQB1*0202-DQA*02XX) with 14.1%. Over 70% of the pigs (n = 147) had at least one copy of one of these three haplotypes. The PCR-based typing system described in this study demonstrates a reliable and unambiguous detection method for SLA class II alleles. It will be a valuable tool for studying the influence of SLA diversity on various immunological, pathological and physiological traits in outbred pigs.

84 citations


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Book
30 Mar 2007
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Abstract: Friction stir welding (FSW) is a relatively new solid-state joining process. This joining technique is energy efficient, environment friendly, and versatile. In particular, it can be used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding. FSW is considered to be the most significant development in metal joining in a decade. Recently, friction stir processing (FSP) was developed for microstructural modification of metallic materials. In this review article, the current state of understanding and development of the FSW and FSP are addressed. Particular emphasis has been given to: (a) mechanisms responsible for the formation of welds and microstructural refinement, and (b) effects of FSW/FSP parameters on resultant microstructure and final mechanical properties. While the bulk of the information is related to aluminum alloys, important results are now available for other metals and alloys. At this stage, the technology diffusion has significantly outpaced the fundamental understanding of microstructural evolution and microstructure–property relationships.

4,750 citations

Journal ArticleDOI
TL;DR: The Li-S battery is a complex device and its useful energy density is determined by a number of design parameters, most of which are often ignored, leading to the failure to meet commercial requirements, so how to pave the way for reliableLi-S batteries is discussed.
Abstract: Lithium-sulfur (Li-S) batteries have attracted tremendous interest because of their high theoretical energy density and cost effectiveness. The target of Li-S battery research is to produce batteries with a high useful energy density that at least outperforms state-of-the-art lithium-ion batteries. However, due to an intrinsic gap between fundamental research and practical applications, the outstanding electrochemical results obtained in most Li-S battery studies indeed correspond to low useful energy densities and are not really suitable for practical requirements. The Li-S battery is a complex device and its useful energy density is determined by a number of design parameters, most of which are often ignored, leading to the failure to meet commercial requirements. The purpose of this review is to discuss how to pave the way for reliable Li-S batteries. First, the current research status of Li-S batteries is briefly reviewed based on statistical information obtained from literature. This includes an analysis of how the various parameters influence the useful energy density and a summary of existing problems in the current Li-S battery research. Possible solutions and some concerns regarding the construction of reliable Li-S batteries are comprehensively discussed. Finally, insights are offered on the future directions and prospects in Li-S battery field.

1,269 citations

Journal ArticleDOI
TL;DR: This review paper has focused on the properties and applications of inorganic nano-structured materials with good anti-microbial activity potential for textile modification and the application methods for the modification of textiles using nano- structured materials.

1,194 citations