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      • KCI등재
      • KCI등재후보

        A Study on the Improvement Plan of the Creation and Management of HEALING FORESTS

        Myunghee Kim,Wookwang Cheon,Wonhyeon Lim J-INSTITUTE 2021 International Journal of Human & Disaster Vol.6 No.2

        Purpose: The purpose of this study is to identify and analyze the current status of the creation and management of healing forests in Korea to derive the improvement plan. Methods: Based on the hypothesis that there will be differences in the creation and management of each operator, 10 items including annual status, regional status, location standard, size, facility status, number of visitors, number of program users, management entity, construction cost, and operation status were investigated and analyzed. Results: The number of healing forests has been steadily increasing, and the area of composition has been found to be large. By region, Jeolla-do has the largest number of places, 7 places (25%), Gyeonggi-do (30%) has the largest area of composition, and the average area of composition is more than twice as large as the national public. In the forest species of healing by location criteria, coniferous forests were preferred, and trees of age class IV had higher frequency and area. There is no difference in the accessibility of each operator to healing forests by size and facilities, and there were many healing forest paths as forest healing facilities. The average number of program users and average visitors per year has been decreasing since 2015. According to the status of each management entity, the Western Regional Forest Service manages the most with a total of nine national and seven public places, while the Eastern Regional Forest Service manages two places. The average creation cost of the healing forest is KRW 4.5 billion/place for the national healing forest, KRW 6.4 billion/place for the public healing forest, and in the case of the average creation cost per area, KRW 0.6 billion/ha for the national healing forest and KRW 0.9 billion/ha for the public healing forest, and the national healing forest is lower. In the case of operation status, the usage fees are in the order of public, national, and private, and the National Forest Service is operated by the Korea Forest Welfare Institute under the Korea Forest Service. Conclusion: ‘Based on the improvement plan for healing forest creation and management, the evaluation items for healing forest creation and operation to introduce a certification system for healing forests should be presented, research on revitalization measures should be conducted, and many people should benefit from forest welfare services.

      • SCISCIESCOPUS

        A Stepwise Split Power-Driving Scheme With Automatic Slope Control for EMC-Enhanced LIN Transceiver

        Kim, Seungmok,Kim, Daewung,Lee, Kwangmuk,Lee, Myunghee,Kim, Jae Joon IEEE 2018 IEEE Transactions on Vehicular Technology VT Vol.67 No.3

        <P>This paper proposes a split power-driving scheme for electromagnetic interference robust design and its automatic stepwise digital slope control for suppression of spectral emission. This analog–digital hybrid method gives power saving effect up to 24.4%, and also production reliability can be improved by utilizing a failure detection and recovery scheme. For feasibility of the proposed electromagnetic compatibility (EMC) scheme, a Local Interconnect Network transceiver prototype is fabricated in a 0.18-μm BCD process, and experimentally verified to provide EMC-enhanced operation with low-cost and low-power overheads.</P>

      • Predictors and outcomes of unplanned readmission to a different hospital

        Kim, Hongsoo,Hung, William W.,Paik, Myunghee Cho,Ross, Joseph S.,Zhao, Zhonglin,Kim, Gi-Soo,Boockvar, Kenneth International Society for Quality in Health Care 2015 International journal for quality in health care Vol.27 No.6

        <P><B>Objectives</B></P><P>To examine patient, hospital and market factors and outcomes associated with readmission to a different hospital compared with the same hospital.</P><P><B>Design</B></P><P>A population-based, secondary analysis using multilevel causal modeling.</P><P><B>Setting</B></P><P>Acute care hospitals in California in the USA.</P><P><B>Participants</B></P><P>In total, 509 775 patients aged 50 or older who were discharged alive from acute care hospitals (index hospitalizations), and 59 566 who had a rehospitalization within 30 days following their index discharge.</P><P><B>Intervention</B></P><P>No intervention.</P><P><B>Main Outcome Measures(s)</B></P><P>Thirty-day unplanned readmissions to a different hospital compared with the same hospital and also the costs and health outcomes of the readmissions.</P><P><B>Results</B></P><P>Twenty-one percent of patients with a rehospitalization had a different-hospital readmission. Compared with the same-hospital readmission group, the different-hospital readmission group was more likely to be younger, male and have a lower income. The index hospitals of the different-hospital readmission group were more likely to be smaller, for-profit hospitals, which were also more likely to be located in counties with higher competition. The different-hospital readmission group had higher odds for in-hospital death (8.1 vs. 6.7%; <I>P</I> < 0.0001) and greater readmission hospital costs ($15 671.8 vs. $14 286.4; <I>P</I> < 0.001) than the same-hospital readmission group.</P><P><B>Conclusions</B></P><P>Patient, hospital and market characteristics predicted different-hospital readmissions compared with same-hospital readmissions. Mortality and cost outcomes were worse among patients with different-hospital readmissions. Strategies for better care coordination targeting people at risk for different-hospital readmissions are necessary.</P>

      • KCI등재

        화학물질 운반차량 누출사고 처리절차에 관한 연구

        Kim, Sungbum,Lee, Sangjae,Jeong, Seongkyeong,Lim, Myunghee,Song, Youngil,Ahn, Euisan,Jeong, Hoyong,Kim, Najin,Lee, Hyunjoo,Choi, Sungwoon 한국재난정보학회 2017 한국재난정보학회 논문집 Vol.13 No.1

        지난 3년('13~'15)간 화학물질사고는 301건이 발생하였으며, 연평균 약 100건이 집계됐다. 이와 같은 화학사고는 인명과 환경에 많은 피해를 가져왔다. '13년~'15년에 발생한 운반차량 화학사고는 연평균 21건으로 전체 화학사고의 약 21%를 차지한다. 화학물질 운반차량의 사고는 지역에 관계없이 도로상에서 발생하고 있기 때문에, 관계기관의 대응 및 사후처리 등 체계적인 현장조사가 필요하다. 또한 화학물질 운반업자 및 화물주 등의 협조가 절대적으로 필요한 상황이다. 따라서, 본 논문에서는 화학물질 운반차량의 사고발생에 대한 현장조사 및 처리 절차를 조사 분석하였다. 이를 통해 운반차량의 화학사고에 대한 원인을 분석하고 현장조사와 처리절차를 체계적으로 마련하는 기초자료가 될 것으로 판단된다. 301 cases of chemical accidents occurred during the recent three years('13~15) recording about 100cases on average in Korea.. Chemical accidents has brought casualties and negative impact on the environment. The chemical accident by transporting vehicles during recent 3 years records 21 on average & takes about 21% of the whole chemical accident. Systematic investigation on chemical accident was needed by corresponding authorities since the transport accident has occurred on the road, all over the nation. For the systematic investigation on the accident scene by the corresponding authorities, the cooperation of transport companies and transport contractor is highly necessary. The investigation of such accident scene was examined and analyzed in this study. Through this study, the results can be basis to analyzed the cause of chemical accident by transporting vehicles and to prepare procedures for on-site investigation and handling systematically.

      • KCI등재

        Systematic determination of the optimized Zr content of Ba(ZrxTi1-x)O3 with high dielectric constant at room temperature for high-voltage system application

        Kim Jandi,Seo Ji Hye,Lee Sang Heun,Cho Myunghee,Kwak Hun,Cheon Ran Sae,Cho Seungchan,Cho Sung Beom,Kim Minkee,Lee Yoon-Seok,김양도,Choi Moonhee 한국세라믹학회 2024 한국세라믹학회지 Vol.61 No.3

        In this study, by replacing the B-site element in BaTiO 3 , a ferroelectric material, with an element with a larger ionic radius, a ferroelectric material with high permittivity at room temperature was synthesized. The powders were prepared by solid-state reaction to perform lattice substitution with Zr 4+ (0.72 Å), which has a larger ionic radius than Ti 4+ (0.605 Å). To perform effective solid-state reaction and better understand the correlation between variables, this study introduced a design of experiment (DOE) based on the orthogonal array (OA) method included in the PIAno software. By substituting 0.222 mol of Zr, which has a large ionic radius, the crystal structure was deformed through an effective diffuse phase transition (DPT), and this resulted in the largest improvement in permittivity at room temperature. In addition, the powder, which underwent solid-state reaction at 1300 °C, formed the densest structure during sintering, which established the conditions for realizing the best dielectric properties. These results can be utilized as a key material for improving the properties of passive devices used in high-voltage industrial systems in societies undergoing the fourth industrial revolution.

      • KCI등재

        Validation of fetus aneuploidy in 221 Korean clinical samples using noninvasive chromosome examination: Clinical laboratory improvement amendments-certified noninvasive prenatal test

        Kim, Min-Jeong,Kwon, Chang Hyuk,Kim, Dong-In,Im, Hee Su,Park, Sungil,Kim, Ji Ho,Bae, Jin-Sik,Lee, Myunghee,Lee, Min Seob Korean Society of Medical Genetics and Genomics 2015 대한의학유전학회지 Vol.12 No.2

        Purpose: We developed and validated a fetal trisomy detection method for use as a noninvasive prenatal test (NIPT) including a Clinical Laboratory Improvement Amendments (CLIA)-certified bioinformatics pipeline on a cloud-based computing system using both Illumina and Life Technology sequencing platforms for 221 Korean clinical samples. We determined the necessary proportions of the fetal fraction in the cell-free DNA (cfDNA) sample for NIPT of trisomies 13, 18, and 21 through a limit of quantification (LOQ) test. Materials and Methods: Next-generation sequencing libraries from 221 clinical samples and three positive controls were generated using Illumina and Life Technology chemistries. Sequencing results were uploaded to a cloud and mapped on the human reference genome (GRCh37/hg19) using bioinformatics tools. Based on Z-scores calculated by normalization of the mapped read counts, final aneuploidy reports were automatically generated for fetal aneuploidy determination. Results: We identified in total 29 aneuploid samples, and additional analytical methods performed to confirm the results showed that one of these was a false-positive. The LOQ test showed that the proportion of fetal fraction in the cfDNA sample would affect the interpretation of the aneuploidy results. Conclusion: Noninvasive chromosome examination (NICE), a CLIA-certified NIPT with a cloud-based bioinformatics platform, showed unambiguous success in fetus aneuploidy detection.

      • SCIESCOPUSKCI등재
      • SCIESCOPUSKCI등재

        Development of Chicken Immunoglobulin Y for Rapid Detection of Cronobacter muytjensii in Infant Formula Powder

        Kim, Yesol,Shukla, Shruti,Ahmed, Maruf,Son, Seokmin,Kim, Myunghee,Oh, Sejong Korean Society for Food Science of Animal Resource 2012 한국축산식품학회지 Vol.32 No.6

        The present study was aimed to produce a chicken polyclonal antibody against Cronobacter muytjensii and to develop an immunoassay for its detection. Purification of anti-C. muytjensii IgY from egg yolk was accomplished using various methods such as water dilution and salt precipitation. As a result, sodium dodecyl sulfate-polyacrylamide gel electrophoresis produced two bands around 30 and 66 kDa, corresponding to a light and a heavy chain, respectively. Indirect competitive enzyme-linked immunosorbent assay (IC-ELISA) was performed to determine the effectiveness of the chicken IgY against C. muytjensii. The optimum conditions for detecting C. muytjensii by indirect ELISA and checkerboard titration of the antigen revealed an optimum average absorbance at the concentration of 18 ${\mu}g/mL$, having ca. $10^8$ coated cells per well. The anti-C. muytjensii IgY antibody had high specificity for C. muytjensii and low cross-reactivity with other tested pathogens. In this assay, no cross-reactivity was observed with the other genera of pathogenic bacteria including Escherichia coli O157:H7, Salmonella Typhimurium, Staphylococcus aureus, Bacillus cereus, Enterobacter aerogenes, Salmonella Enteritidis and Listeria monocytogenes. In addition, detection of C. muytjensii in infant formula powder showed a low matrix effect on the detection curve of IC-ELISA for C. muytjensii, with similar detection limit of $10^5$ CFU/mL as shown in standard curve. These findings demonstrate that the developed method is able to detect C. muytjensii in infant formula powder. Due to the stable antibody supply without sacrificing animals, this IgY can have wide applications for the rapid and accurate detection of C. muytjensii in dairy foods samples.

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