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Synthesis and Magnetic Properties of Nanoparticles of Fe-co Alloys and Their Oxides Prepared by chemical Vapor condensation

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journal of Materials Science & Technology 2004年第4期20卷 459-462页

作者： ZhenhuaWANG ZhidongZHANG c.j.choi B.K.kim j.c.kim ShenyangNationalLaboratoryforMaterialsScienceandInternationalcentreforMateri~alsPhysics InstituteofMetalResearchChineseAcademyofSciencesShenyang110016China KoreaInstituteofMachineryandMaterials 66Sangnam-DongChangwonKyungnam641-010Korea

Nanoparticles of Fe-co alloys and their oxides with the particle size below 20 nm were prepared by chemical vapor condensation process. The pure Ar, Ar+1%O2, Ar+3%O2 and Ar+6%O2 were used as carrier gases, with iron carbonyl and cobalt carbonyl as the precursors. XRD patterns showed that Fe-co metallic nanoparticles were synthesized by using pure Ar as carrier gas, and only metal oxides were obtained using Ar+(>3)%O2 as carrier gas. The HRTEM images and TG-DTA curves were used to study the core-shell structure of the different nanoparticles. The nanoparticles obtained in pure Ar consist of black core and light shell with thickness of 2~4 nm. However, in the particles obtained in Ar+6%02, the oxides core with visible lattice fringes are surrounded by thin shell.

关键词： Fe-co Nanoparticles HRTEM cVc

Evaluation of spermatogenesis and fertility in F1 male rats after in utero and neonatal exposure to extremely low frequency electromagnetic fields

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Asian journal of Andrology 2005年第2期7卷 189-194,页

作者： M.K.chung S.j.Lee Y.B.kim S.c.Park D.H.Shin S.H.kim j.c.kim Reproductive Toxicology Division Korea Institute of ToxicologyKorea Research Institute of Chemical TechnologyDaejeon 305-600Korea college of Veterinary Medicine Chungbuk National UniversityCheongju 361-763Korea college of Veterinary Medicine Kyungpook National UniversityDaegu 702-701Korea college of Veterinary Medicine Chonnam National UniversityGwangju 500-757Korea

Aim:To determine whether in utero and neonatal exposure to a 60 Hz extremely low frequency electromagnetic field (EMF) results in spermatotoxicity and reproductive dysfunction in the F1 offspring of ***:Age-matched, pregnant Sprague-Dawley rats were exposed continuously (21 h/day) to a 60 Hz EMF at field strengths of 0 (sham control),5,83.3 or 500 μT from day 6 of gestation through to day 21 of *** experimentally generated magnetic field was monitored continuously (uninterrupted monitoring over the period of the study) throughout the ***:No exposure-related changes were found in exposed or sham-exposed animals with respect to the anogenital distance,preputial separation,testis weight,testicular histology,sperm count,daily sperm production, sperm motility,sperm morphology and reproductive capacity of F1 ***:Exposure of Sprague- Dawley rats to a 60 Hz EMF at field strengths of up to 500 μT from day 6 of gestation to day 21 of lactation did not produce any detectable alterations in offspring spermatogenesis and fertility.

关键词： spermatogenesis electromagnetic fields prenatal exposure postnatal exposure rat

Portable System for cWA Detection Using Micro Array Gas Sensor

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稀有金属材料与工程 2006年第A3期35卷 124-128页

作者： j.H.Kwak Y.T.Lim G.H.kim N.j.choi H.D.Park G.H.Rue j.S.Huh j.c.kim D.D.Lee School of Electrical Engineering and computer Science Kyungpook National UniversityDaegu 1370Korea Electronics and Telecommunications Research Institute Future Technology Research Division New Functional Information Devices TeamGajeongYuseong-GuDaejeon 161 Korea Korea Electronics Technology Institute Yatap-DongBundang-GuSeongnam-SiGyeonggi-Do #68Korea Department of Materials Science and Metallurgy Kyungpook National UniversityDaegu 1370Korea Department of chemical Engineering Kyungpook National UniversityDaegu 1370Korea

Biochemistry weapon is raising new tools of war and *** research is an experiment about portable system for cWAs (chemical warfare agents) detection using micro array gas *** were divided into four types such as blood, nerve,vesicant,and choking *** detect various cWAs,semiconductor thick film sensor array based on tin oxide was fabricated and their gas responses were *** temperature was range of 250℃to 350℃and gas concentration was range of 0.1μg/g to 10μg/*** array was measured as operating temperatures,concentrations for four simulant agents of *** parameters from results were carried out classification among cWAs through the principal component analysis (PcA).Also,classification of gases is studied using adaptive resonance theory (ART) that is one of neural network *** displayed using PDA system.

关键词： SnO2 chemical warfare agents(cWAs) portable system ART array PcA

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c_1化学的新结构单元甲酸甲酯

煤炭综合利用译丛 1990年第4期13卷 51-60,87页

作者： j.S.Lee j.c.kim Y.G.kim 张剑锋化工部化肥研究所

0 前言c_1 化学涉及一碳到多碳的转化,c_1 化学品可从煤及其它碳质材料来的合成气生产。近年因石油危机,c_1 化学普遍受到重视。合成气直接生产化学品虽好但选择性差、条件苛刻。所以一般认为先台成甲醇这种便于运输存贮的物质,再合成... 详细信息

0 前言c_1 化学涉及一碳到多碳的转化,c_1 化学品可从煤及其它碳质材料来的合成气生产。近年因石油危机,c_1 化学普遍受到重视。合成气直接生产化学品虽好但选择性差、条件苛刻。所以一般认为先台成甲醇这种便于运输存贮的物质,再合成化学品更可取。因此,甲醇是 c_1化学的结构单元。甲酸甲酯也能起到这种结构单元作用,不但因其贮运便利,可大规模生产。

关键词：甲酸甲酯 c1化学结构单元合成气

基于FDG代谢参数的模型对预测同时性结直肠癌肝转移术后复发的应用价值

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国际医学放射学杂志 2023年第3期 363-364页

作者： H.S.Lee H.W.Kwon S.B.Lim j.c.kim c.S.Yu Y.S.Hong 吕律

摘要目的应用FDG PET/cT代谢参数构建模型，预测同时性结直肠癌肝转移（ScLM）根治术后复发，并验证模型价值，以改善ScLM病人的预后。方法回顾性分析2006—

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澳大利亚不同品种甜羽扇豆消化能测定及其消化能预测方程的研究进展

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饲料与畜牧（新饲料） 2012年第9期 23-30页

作者： j.c.kim B.P.Mullan j.M.Heo A.Hernandez j.R.Pluske 赵颖中国农业大学动物科技学院

试验选用63头体重49.5±0.5kg的公猪(长白×大白)对不同品种不同生长区域狭长叶羽扇豆的消化能差异进行分析,并根据羽扇豆的物理和化学组分建立消化能的预测方程。试验猪按4×2双因子设计随机分配,4个品种(Belar、coromup、Manudelup和T... 详细信息

试验选用63头体重49.5±0.5kg的公猪(长白×大白)对不同品种不同生长区域狭长叶羽扇豆的消化能差异进行分析,并根据羽扇豆的物理和化学组分建立消化能的预测方程。试验猪按4×2双因子设计随机分配,4个品种(Belar、coromup、Manudelup和Tanjil),2个生长地区(西澳大利亚的南北农业区)。另外,采用小麦对照作为羽扇豆消化能统计的参考。羽扇豆用锤片粉碎机粉碎,用4mm筛片筛选,平均粒度为888μm。试验中日粮能量水平为维持能的3倍[3×(0.458×BW^(0.75))/消化能×0.97],范围从13.3～15.7Mj/kg不等,平均值为14.2Mj/kg。羽扇豆的品种对消化能影响极显著(Pcoromup羽扇豆的高消化能引起的。试验结果表明,在羽扇豆的生长中,遗传因素和环境条件对生长猪利用羽扇豆有显著的影响。简单回归分析表明,消化能的预测可能与豆皮比例[R^2=0.88,相对标准偏差(RSD)=1.11 6,Pj/kg,而且根据羽扇豆的物理和化学特性可预测其消化能值,且精确度高。

关键词：消化能生长地区羽扇豆猪品种

Maximizing biomass utilization: An integrated strategy for coproducing multiple chemicals

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journal of Energy chemistry 2025年第1期100卷 180-191页

作者： Byeongchan Ahn Sua jo jonggeol Na j.jay Liu Young-ju kim Wangyun Won Department of chemical and Biological Engineering Korea University Department of chemical Engineering (Integrated process) Kyung Hee University Department of chemical Engineering and Materials Science Ewha Womans University Department of chemical Engineering Pukyong National University Resources Engineering Plant Research Department Korea Institute of Geoscience and Mineral Resources

Lignocellulosic biomass is one of the viable solutions to alleviate the global warming. However, the limited utilization of biomass majorly focused on cellulose and hemicellulose restricts the economic and environmental feasibilities. To cope with this issue, we proposed an integrated process of co-producing 1,6-hexanediol（1,6-HDO） with tetrahydrofuran and adipic acid from biomass, referred to as Strategy A. To compare the impacts of lignin upgrading and feedstock, Strategy B, which co-produces tetrahydrofuran alone, and Strategy c, which is the traditional route to produce 1,6-HDO from fossil fuels, were used. Heat networks are also designed to reduce operating costs and indirect carbon emissions due to energy consumption, saving 87% and 83% of the heat and cooling requirements, respectively, in Strategy A. The market competitiveness of Strategy A was evaluated by determining the minimum selling price through techno-economic analysis, and sustainability was thoroughly investigated by quantifying the environmental impacts through both midpoint and endpoint life-cycle assessments（LcAs）.Strategy A was found to be the most favorable both economically（USRDScHARDOLLAR3,402/ton） and environmentally（-26.9 kg cO2eq.）. This indicates that lignin valorization is not only economically but also environmentally preferred. Finally, changes in economic and environmental feasibilities depending on economic, process, and environmental parameters were investigated using sensitivity and uncertainty analyses. The results of these analyses provide valuable insight into bio-based chemical production.

关键词： Biorefinery carbon mitigation climate change Global warming Lignin utilization Bioeconomy

Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul c.Khot chenjie Yao Nahyun kim Tae Geun kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

Role of glutathione transferase in phase separation of FUS and TAF15 in neurons

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Neural Regeneration Research 2025年第7期20卷 1999-2000页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS)is a progressive neurodegenerative disorder characterized by the degeneration of motor neurons in the brain and spinal cord,leading to muscle weakness,paralysis,and ultimately death(cleveland and Rothstein,2001).Frontotemporal lobar degeneration(FTLD)is a neurodegenerative disease affecting the frontal and temporal lobes of the brain,leading to changes in behavior,personality,and language(Van Langenhove et al.,2012).Both ALS and FTLD are classified as proteinopathies in which abnormal protein aggregation and accumulation in neurons contribute to the disease *** in sarcoma(FUS)is a DNA/RNA-binding protein involved in various cellular processes,including transcriptional regulation,RNA splicing,and DNA *** in the FUS gene have been linked to familial ALS,highlighting the importance of FUS in the disease pathogenesis(Vance et al.,2009).In ALS and FTLD,aberrant post-translational modifications(PTMs)of FUS,such as phosphorylation,acetylation,and methylation,have been implicated in the promotion of FUS aggregation and neurotoxicity(choi et al.,2023).Therefore,understanding the regulatory mechanisms of FUS PTMs is crucial for developing targeted therapies against these diseases.

关键词： degeneration FUS aggregation