http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A Study on Segmentation Process of the K1 Reactor Vessel and Internals
Young Hwan Hwang,Seokju Hwang,Sunghoon Hong,Kwang Soo Park,Nam-Kyun Kim,Deok Woon Jung,Cheon-Woo Kim 한국방사성폐기물학회 2019 방사성폐기물학회지 Vol.17 No.4
After the permanent shutdown of K1 in 2017, decommissioning processes have attracted great attention. According to the current decommissioning roadmap, the dismantling of the activated components of K1 may start in 2026, following the removal of its spent fuel. Since the reactor vessel (RV) and reactor vessel internal (RVI) of K1 contain massive components and are relatively highly activated, their decommissioning process should be conducted carefully in terms of radiological and industrial safety. For achieving maximum efficiency of nuclear waste management processes for K1, we present activation analysis of the segmentation process and waste classification of the RV and RVI components of K1. For RVI, the active fuel regions and some parts of the upper and lower active regions are classified as intermediate-level waste (ILW), while other components are classified as low-level waste (LLW). Due to the RVI’s complex structure and high activation, we suggest various underwater segmentation techniques which are expected to reduce radiation exposure and generate approximately nine ILW and nineteen very low level waste (VLLW)/LLW packages. For RV, the active fuel region and other components are classified as LLW, VLLW, and clearance waste (CW). In this case, we suggest in-situ remote segmentation in air, which is expected to generate approximately forty-two VLLW/LLW packages.
성인에서 호산구성 점액에 의해 발생한 중간엽증후군 2예
황하원 ( Ha Won Hwang ),김주희 ( Joo Hee Kim ),김숙연 ( Suk Yeon Kim ),이선호 ( Sun Ho Lee ),이수행 ( Soo Haeng Lee ),박성훈 ( Sunghoon Park ),황용일 ( Yong Il Hwang ),장승훈 ( Seung Hun Jang ),정기석 ( Ki Suck Jung ),이인재 ( In 대한천식알레르기학회(구 대한알레르기학회) 2016 Allergy Asthma & Respiratory Disease Vol.4 No.2
Right middle lobe syndrome (RMLS) is defined as a transient or recurrent, chronic collapse of the middle lobe of the right lung by certain pathologic conditions. RMLS is a relatively uncommon condition having multiple etiologies and various clinical presentations. Two patients were referred to Hallym University Sacred Heart Hospital, one for the treatment of coughing and the other for the treatment of pneumonia. A diagnosis of RMLS was identified through X-ray and computed tomography image evaluation for each condition. Bronchoscopy revealed mucus obstruction in the right middle lobe bronchus. Biopsy of the aspirated mucus showed mucus containing many eosinophils and Charcot-Leyden crystals. After removal of impacted mucus, clinical and radiological improvements were observed in both patients. Therefore, eosinophilic mucus impaction can be considered a potential cause of RMLS, irrespective of any underlying asthmatic symptoms. (Allergy Asthma Respir Dis 2016;4:149-153)
A variant block-based comparative genomics method for the detection of functional loci in soybeans
Yul Ho Kim,Tae-Young Hwang,Hyang Mi Park,Seuk Ki Lee,Man Soo Choi,Seung woo Hwang,Kwang Ho Jeong,Min Jung Seo,Hong Tai Yun,Sun Lim Kim,Young-Up Kwon,Ho-Sung Yoon,Suk-Ha Lee,JongBhak,Sunghoon Lee 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
Although much effort has been made to find agronomically important loci in the soybean plant, extensive linkage disequilibrium and genome duplication have limited efficient genome-wide linkage analyses that can identify important regulatory genes. In this respect, recombination block-based analysis of cultivated plant genomes is a potential critical step for molecular breeding and target locus screening. We propose a new three-step method of detecting recombination blocks and comparative genomics of bred cultivars. It utilizes typical reshuffling features of their genomes, which have been generated by the recombination processes of breeding ancestral genomes. To begin with, mutations were detected by comparing genomes to a reference genome. Next, sequence blocks were examined for likenesses and difference with respect to the reference genome. The boundaries between the blocks were taken as recombination sites. All recombination sites found in the cultivar set were used to split the genomes, and the resulting sequence fragments were named as core recombination blocks (CRBs). Finally, the genomes were compared at the CRB level, instead of at the sequence level. In the genomes of the five Korean soybean cultivars used, the CRB-based comparative genomics method produced long and distinct CRBs that are as large as 22.9 Mb. We also demonstrated efficiency in detecting functionally useful target loci by using indel markers, each of which represents a CRB. We further showed that the CRB method is generally applicable to both monocot and dicot crops, by analyzing publicly available genomes of 31 soybeans and 23 rice accessions.
Commercial Operation Status on LAW Vitrification in US DOE Hanford Site
Sunghoon Hong,Mihyun Lee,Young Hwan Hwang 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.1
Hanford site has been operated since 1943 to produce the plutonium for nuclear weapons. Significant amount of radioactive wastes was generated by the nuclear weapons production process. The radioactive wastes are stored in 177 aged underground tanks. Due to the risk of leakage into the air and the Columbia River, the US DOE and EPA, and Washington State Department of Ecology organized the Tri-Party Agreement (TPA) to clean-up the Hanford site in 1989. The LAW (low-activity waste) vitrification facility named WTP (Waste Treatment Plant) is plan to vitrify about 212 million liters of radioactive waste. The US DOE announced that the world’s largest melter to vitrify the LAW was heated up on October 8, 2022.
Status Update for Contaminated Water Management in Fukushima Daiichi NPP
Sunghoon Hong,Seok-Ju Hwang,Cheon-Woo Kim 한국방사성폐기물학회 2022 한국방사성폐기물학회 학술논문요약집 Vol.20 No.2
Recently, Japan’s government has announced Tokyo Electric Power Company’s plan to discharge contaminated water stored from the tanks of the Fukushima Daiichi nuclear power plant site into the sea. The contaminated water is treated by advanced liquid processing system (ALPS) to remove 62 radionuclide containing cesium, strontium, iodine and etc. using co-precipitation (or precipitation) and adsorption for other nuclides (except for tritium and carbon-14). The total amount of the contaminated water generated by ALPS facility is 1,311,736 m3 (as of August 18, 2022). The amount of contaminated water is estimated same as Tokyo dome volume. Under the sea discharge plan, the contaminated water will be diluted in seawater more than 100 times, and tritium concentration lowered 1/7 of the drinking water standard set by the World Health Organization (10,000 Bq/liters). The diluted water will then move through an undersea tunnel and be discharged about 1 kilometer off the coast.