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Heavy metal chemistry in soils received long-term application of organic wastes

Journal of Agricultural Chemistry and Environment 2012年第1期1卷 1-9页

作者： Soon-ik Kwon Yeon-Ah Jang Kye-Hoon kim Goo-Bok Jung Min-Kyeong kim Hae Hwang Mi-Jin Chae Seung-Chang Hong Kyu-Ho So Sun-Gang Yun Kwon-Rae kim Gyeongnam National University of Science and Technology Jinju South Korea National Academy of Agricultural Science (NAAS) RDA Suwon South Korea The University of Seoul Seoul South Korea

This study was carried out to understand the long-term effect of organic waste treatment on the fate of heavy metals originated from the organic wastes, together with examination of changes in soil properties. For this, the soils received three different organic wastes (municipal sewage sludge, alcohol fermentation processing sludge, pig manure compost) in three different rates (12.5, 25, 50 ton/ha/yr) for 7 years (1994 - 2000) were used. To see the long-term effect, plant growth study and soil examination were conducted twice in 2000 and 2010, respectively. There was no additional treatment of organic wastes for post ten years after ceasing organic waste treatment for seven years. Soil examination conducted in 2010 showed decreases in soil pH, EC, total nitrogen, organic matter, available phosphorus, exchangeable cations and heavy metal contents in all soils received organic wastes compared to the results obtained in 2000. Speciation of heavy metals in soil through sequential extraction showed that organically bound Cu was the dominant species in all treatment and exchangeable Cu was increased in the plots treated with municipal sewage sludge and alcohol fermentation processing sludge. organically bound Ni increased from 25% - 30% to 32% - 45% in 2010 inall treatment while Pb showed increase in carbonate form in all treatments. Zn existed mainly as sulfide and residual forms, showing increases in organically bound form in all treatment during post ten years.

关键词： Heavy Metal Long-Term Application Organic Wastes Sequential Extraction

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韩国2013-2018年针灸致医疗纠纷分析

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亚太传统医药 2019年第12期15卷 1-2页

作者： Hyo Bin kim Jae ik kim Ye Ji Lee 大田大学针灸学院

收集2013年1月-2018年9月在韩国使用针灸疗法治病产生的医疗纠纷事件,分析其产生的原因,以期为应用日益广泛的传统医学疗法提供临床参考,避免类似事件发生,维护医生和患者的共同利益。

关键词：韩国传统医学针灸医疗纠纷医疗事故

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Experimental and Modeling Studies on the Chemical Vapor Infiltration with Respect to the Effects of Thermal Gradient and Other Operating Parameters

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Journal of Wuhan University of Technology(Materials Science) 2018年第3期33卷 525-532页

作者： Kyung Do Joo Do Hoon kim Gui Yung Chung Department of Chemical Engineering Hong Ik University

Effects of operating parameters in the thermal gradient chemical vapor infiltration of propane such as thermal gradient, diffusion, infiltrations time, and concentration of propane were studied by focusing on the visualizations of the intrinsic effects of these parameters. A uniform deposition in the preform was obtained with a gradually increasing temperature along the gas flow. The uniformity of deposition through the preform got improved with increasing deposition time. Results of numerical modeling estimated the experimental data very well when the pre-exponential factor of the overall rate of carbon deposition from propane reported by Vaidyaraman[1] was multiplied by 4. The average density of a preform increased by about 3 times from 0.38 to 1.15 g/cm3 after 60 hr deposition with a thermal gradient under the conditions of 3% propane in nitrogen and 840 to 900 ℃.

关键词： TG-CVI propane C/C composites uniform deposition mathematical modeling

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90 years of thermal analysis as a control tool in the melting of cast iron

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China Foundry 2020年第2期17卷 69-84页

作者： Doru Michael Stefanescu Ramon Suarez Sung Bin kim The Ohio State University ColumbusOH and The University of AlabamaTuscaloosaALUSA ik4-Azterlan Durango(Bizkaia)Spain Veigalan Estudio 2010 Durango(Bizkaia)Spain AnyCasting Software Co. LtdSeoulS.Korea

Since its first literature mention in conjunction with cast iron in 1931 by Esser and Lautenbusch,thermal analysis(TA)has journeyed a long *** it is an accepted and widely used tool for process control for all types of cast *** paper reviews the latest progress in the development of equipment and analysis methods that make TA successful in applications such as the estimation of chemical composition,graphitization potential,and the shape and number of graphite *** potential and limitations of the prediction of shrinkage defects propensity are analyzed in some *** of attempts at prediction of mechanical properties and shrinkage propensity are also *** graphs showing the data scattering are presented to convey the reader a better sense of the accuracy of various predictions.

关键词： thermal analysis cast iron graphite shrinkage prediction chemical composition

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Tremella Fuciformis prevented TMT-induced memory impairment in the rats

Tremella Fuciformis prevented TMT-induced memory impairment ...

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中国菌物学会第五届会员代表大会暨2011年学术年会

作者： In-sop SHIM Hyun-Jung PARK Hyun Soo SHIM Yong Ho AHN Kyung Soo kim Kum Ju PARK Woong Ki CHOI Jung Il KANG Tae Seok kim ik Hyun YEO Jin Su kim Hyo-Cheol HA Acupuncture and Meridian Science Research Center Kyung Hee UniversitySeoul 130-701Korea

The present study examined the effects of Tremella fuciformis(TF) on the learning and memory function and the neural activity in rats with TMT-induced memory *** rats were administered saline or TF(TF 25,50,100mg/kg,p.o.) daily for 21 *** cognitive improving efficacy of TF on the amnesic rats, which was induced by TMT,was investigated by assessing the Morris water maze test and by performing acetylchoine transferase(ChAT) and cAMP responsive element binding protein(CREB) immunohistochemistry. In order to confirm the underlying mechanisms of the memory enhancing effects of TF,we assessed the neurite outgrowth of PC12 *** also administered 18F-Fluorodeoxyglucose and performed a PET/CT scan of the frontal lobe. The rats with TMT injection showed impaired learning and memory of the tasks and treatment with TF produced a significant improvement of the escape latency to find the platform in the Morris water maze at the 2 day compared to that of the control group(after the 2 day,p<0.05).In the retention test,the TF50 group showed increased time spent around the platform compared to that of the control group(p<0.05).Consistent with the behavioral data,TF50 mg/kg significantly alleviated the loss of ChAT-ir neurons in the hippocampus compared to that of the control group(p<0.001).Treatment with TF significantly increased the CREB positive neurons in the hippocampal CA1 area as compared to that of the control *** addition,TF treatment(50mg/kg) increased the glucose uptake approximately sevenfold in the frontal lobe(p<0.001) and it significantly promoted neurite outgrowth of the PC 12 cells(p<0.01),as compared to that of the controls. These results suggest that TF may be useful for improving the cognitive function via regulation of cholinergic marker enzyme activity and neural activity.

关键词： Trimethyltin(TMT) Choline Acetyltransferase(ChAT) Tremella fuciformis(TF) PC12

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Screening of drought tolerant rice germplasms and analysis of drought tolerant QTL under long-term drought stress conditions

Screening of drought tolerant rice germplasms and analysis o...

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中国作物学会——2015年学术年会

作者： Dongjin Shin Tae-Heon kim Sang-ik Han Jun-Hyun Cho You-Chun Song Min-Hee Nam Dong-Soo Park Yeong-Up Kwon Department of Southern Area Crop Science National Institute of Crop ScienceRDA

Little progress has been made in the genetic analysis of drought tolerance,because it is a complex trait controlled by a number of genes and affected by various environmental *** here,we screened drought tolerant varieties with modified leaf water loss rate assay and visual drought tolerant phenotype in the greenhouse conditions with more than 800 *** these varieties,Samgang,Gumei4 and Apo showed the lowest of leaf water loss rate and strong drought tolerant phenotype and we choose Samgang for further *** identify which chromosome loci in Samgang have functions for drought tolerant,we generated a double-haploid(DH)population of 101 individuals derived from a cross of the drought tolerant variety Samgang and the drought sensitive variety *** drought phenotype and relative water content(RWC)were examined for phenotypic evaluation of double-haploid population under drought stress *** score the drought phenotype degrees of this population,we withheld water for 6weeks and treated the watering for 7 *** watering,visual phenotype was observed 1 to 9 degree according to the standard evaluation system for rice,*** sensitive parent Nagdong was almost died and was scored as 9 degree,while tolerant parent Samgang showed slightly leaf tip drying phenotype and was scored as 3 degree in our experimental *** of 3 QTLs were detected on chromosome2,6,and 11 for visual drought phenotype with 175 molecular *** these QTLs,QTL on chromosome 11 with flanking markers RM26755-RM287 accounted for 24.4%phenotype variation with a LOD score of *** this QTL also functioned for relative water content trait.

关键词： Rice drought tolerant QTL

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AAV6 as an effective gene delivery vector for prolonged transgene expression in intervertebral disc cells in vivo

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Genes & Diseases 2022年第4期9卷 1074-1085页

作者： Chi Heon kim Colleen Oliver Hamid Dar Hicham Drissi Steven M.Presciutti Department of Orthopaedics Emory University School of MedicineAtlantaGA 30329USA Atlanta Veteran Affairs Medical Center DecaturGA 30030USA

Intervertebral disc degeneration is the main contributor to low back pain,now the leading cause of disability *** transfer,either in a therapeutic attempt or in basic research to understand the mechanisms of disc degeneration,is a fascinating and promising tool to manipulate the complex physiology of the *** vectors based on the adeno-associated virus(AAV)have emerged as powerful transgene delivery vehicles yet a systematic investigation into their respective tropism,transduction efficiency,and relative toxicity have not yet been performed in the disc in ***,we used in vivo bioluminescence imaging to systematically compare multiple AAV serotypes,injection volumes,titers,promoters,and luciferase reporters to determine which result in high transduction efficiency of murine nucleus pulposus(NP)cells in *** find that AAV6 using a CAG promoter to drive transgene expression,delivered into the NP of murine caudal discs at a titer of 1011 GC/mL,provides excellent transduction efficiency/kinetics and low toxicity in *** also show,for the first time,that the transduction of NP cells can be significantly boosted in vivo by the use of small cell permeabilization ***,to our knowledge,we are the first to demonstrate the use of optical tissue clearing and three-dimensional lightsheet microscopy in the disc,which was used to visualize fine details of tissue and cell architecture in whole intact discs following AAV6 *** together,these data will contribute to the success of using AAV-mediated gene delivery for basic and translational studies of the IVD.

关键词： Adeno-associated virus Bioluminescence imaging Cell permeabilization peptide Intervertebral disc Lightsheet microscopy Nucleus pulposus transduction Tissue clearing

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QTL mapping for drought tolerance at vegetative stage in rice

QTL mapping for drought tolerance at vegetative stage in ric...

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2014年中国作物学会学术年会

作者： Tae-Heon kim Soo-Kwon Park Woon-Ha Hwang Sang-ik Han Jun-Hyun Cho You-Chun Song Min-Hee Nam Dong-Soo Park Longzhi Han Dong-Jin Shin Department of Functional Crop NICSRDAMiryang627-803Korea Institute of Crop Sciences Chinese Academy of Agricultural Sciences

The global rice reduction due to drought averages 18 Mt,especially,23 Mha of rice fields in Asia are ***,little progress has been made in the genetic analysis of drought tolerance,because it is a complex trait controlled by a number ofgenes and affected by various environmental *** here,we have optimized leaf water loss rate assay with plastic ware for large screening and we examined leaf water loss rate of 815 rice *** range of leaf water loss rate was between about 15%to 35%.Among these varieties,we selected and validated the visual drought phenotype of 14 varieties in greenhouse

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奇异变形杆菌的L-氨基酸脱氢酶在大肠杆菌中的异源表达和鉴定

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生物工程学报 2008年第12期24卷 2129-2129页

作者： in-Oh Baek Jeong-Woo Seo Ohsuk Kwon Su-Il Seong ik-Hwan kim Chul Ho kim 韩国生物科学和生物技术研究所(KRIBB)分子生物过程研究中心高丽大学生命科学与生物技术学院 Biotopia公司研发中心

本研究在大肠杆菌中表达了奇异变形杆菌的L-氨基酸脱氢酶,并对产物苯丙酮酸进行了鉴定。奇异变形杆菌的L-氨基酸脱氢酶在大肠杆菌中得到了很好的表达,具有酶活性,并且发现其活性与细胞膜相关。L-氨基酸脱氢酶与细胞膜的密切相关性,对酶... 详细信息

本研究在大肠杆菌中表达了奇异变形杆菌的L-氨基酸脱氢酶,并对产物苯丙酮酸进行了鉴定。奇异变形杆菌的L-氨基酸脱氢酶在大肠杆菌中得到了很好的表达,具有酶活性,并且发现其活性与细胞膜相关。L-氨基酸脱氢酶与细胞膜的密切相关性,对酶活来说可能是必不可少的。

关键词：奇异变形杆菌脱氢酶苯丙氨酸苯丙酮酸苯乳酸

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Effect of Korean red ginseng on blood pressure and nitric oxide production

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Acta Pharmacologica Sinica 2000年第12期 40-45页

作者： JEON Byeong Hwa,kim Cuk Seong,kim Hoe-Suk,PARK Jin-Bong,NAM Ki Yeul,CHANG Seok Jong Department of Physiology College of Medicine Chungnam National University Taejon Korea Department of Physiology College of Medicine Chungnam National University Taejon Korea Department of Physiology College of Medicine Chungnam National University Taejon Korea Department of Physiology College of Medicine Chungnam National University Taejon Korea Korea Ginseng & Tobacco Research Institute Taejon Korea Department of Physiology College of Medicine Seonam University Namwon Korea

AIM: To investigate the effect of crude saponin and non-saponin fraction of Korean red ginseng (KRG) on the blood pressure and nitric oxide (NO) production in the conscious rats and cultured endothelial cell line, ECV 304 cells. METHODS: Systolic blood pressure and heart rate were monitored in the conscious rats. Nitric oxide levels and the expression of nitric oxide synthase were measured by a spectrophotometric assay using Griess reagents and Western blotting, respectively. Nitric-oxide synthase activity was measured based on the conversion rate of [3H]arginine to [3H]citrulline. RESULTS: Systolic blood pressure was decreased by crude saponin (100 mg/kg, iv) of KRG in the conscious control and one-kidney, one-clip Goldblatt hypertensive (ik, 1C-GBH) rats. The hypotensive effect induced by crude saponin of KRG reached maximum at 2 - 4 min and slowly recovered after 20 min to the initial level in both groups. Crude saponin of KRG induced tachycardia in the conscious rats but induced bradycardia in the a

关键词： Korean red ginseng saponins saponin-free fraction nitric oxide hypertension antihy-pertensive

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