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정종헌,원휘준,최왕규,김계남,이성호,오원진 한국공업화학회 2003 응용화학 Vol.7 No.1
Liquid wastes containing uranium ions in high concentration of chemical salts havebeen treated by electrosorption on a activated carbon fibers(ACFs) electrode. Effectiveuranium (VI) removal is accomplished when the potential is -0.5V(vs. Ag/AgCl) ormore negative. For a feed concentration of 100mg/1, the concentration of U(VI) in thecell effluent is reduced to less than 1mg/1, and electrosorption capacity over 500mg/uranium/gACF is reached. The adsorbed uranium can be desorbed up to 99%for 20h by passing a 1.9N NaCl solution at pH 3 through the cell and applying a potential of +1.2V. The amount of desorbed uranium increased as the solution pHwas lowered and the applied potential increased.
위 MALT 림프종에서 다발성 림프절 전이로 오인된 동시성 림프절 결핵 1예
김성은,김규종,김도현,송준영,문대성,장리라,유찬희,문원,박무인,박선자,김영옥 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2
28세 남자가 내시경적 점막절제술을 통해 저등급 위MALT 림프종으로 진단되었다. 병기설정을 위해 18F-FDG PET 검사를 시행하였고 우측 쇄골상부, 우측상/하부 기관주위, AP window 부위에 강한 섭취가 관찰되어 전이성 림프절로 판단하였다. 그러나, 우측 쇄골상부 림프절에서 시행한 절제생검에서 만성육아종성염증소견이 관찰되었고 조직의 결핵 중합효소연쇄반응에서도 양성 반응을 보였다. 2개월간 항결핵제의 사용 후 시행한 추적 컴퓨터단층촬영 검사에서 림프절 크기의 감소를 보여 최종적으로 위 MALT 림프종에서 광범위 림프절 전이로 오인된 동시성 림프절 결핵으로 진단되었다. A 28-year-old man was diagnosed as gastric MALT lymphoma in diagnostic EMR (endoscopic mucosal resection). He subsequently underwent an 18F-FDG PET. 18F-FDG PET showed intense multifocal uptake in right supraclavicular, right upper and lower paratracheal, and AP window areas that was considered radiologically to represent widespread metastatic lymphadenopathy. Excisional biopsy of a supraclavicular lymph node, however, revealed chronic granulomatous lymphadenitis with a positive reaction of Tb-nested PCR. After antituberculosis treatment for 2 months, a follow-up CT scan showed complete resolution of the lesions. Intense 18F-FDG uptake could be due to an infectious process such as synchronous tuberculous lymphadenitis. Therefore, this could mimic a malignant condition such as lymphoma with extensive lymph node metastasis due to a false-positive finding, which may lead to a misdiagnosis.
[PB-0071] GBS 분석을 통한 국내 무(Raphanus sativus L.) 품종의 유전적 유연관계 분석
Hui Yeon Hong(Hui Yeon Hong),Jun Ho Lee(Jun Ho Lee),Yoon Ah Jang(Yoon Ah Jang),Jin Hee Kim(Jin Hee Kim),Ji Won Kim(Ji Won Kim),Ji Hyeon Lim(Ji Hyeon Lim),Hye Won Yu(Hye Won Yu),Won Byoung Chae(Won Byo 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
[PB-0073] 무(Raphanus sativus L.) 품종의 표현형적 특성과 heterozygosity 간의 상관관계 분석
Hui Yeon Hong(Hui Yeon Hong),Jun Ho Lee(Jun Ho Lee),Yoon Ah Jang(Yoon Ah Jang),Jin Hee Kim(Jin Hee Kim),Ji Won Kim(Ji Won Kim),Ji Hyeon Lim(Ji Hyeon Lim),Hye Won Yu(Hye Won Yu),Won Byoung Chae(Won Byo 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
PFC Ultrasonic Decontamination Efficiency on the Various Types of Metal Specimens
Hui-Jun Won,Gye-Nam Kim,Chung-Hun Jung,Jin Ho Park,Won Zin Oh 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.4
Type 304 stainless steel 시편에 느슨하게 붙어있는 분말에 대한 초음파 제염 거동을 조사하였다. 매질을 물, PFC 및 의 음이온 계면활성제를 함유한 PFC 용액으로 변화시킴에 따라 제염계수는 20, 50 및 200으로 증가하였다. 제염계수에 차이가 생기는 이유를 초음파 매질의 표면장력 및 양으로 하전된 산화물 표면과 음이온 계면활성제 사이의 상호작용에 기인한 것으로 설명할 수 있었다. 음이온 계면활성제를 함유한 PFC 용액 내에서 분말로 오염된 평면 시편, 파이프 시편, 틈새 시편 및 용접 시편에 대한 초음파 제염 효과를 관찰하였다. 연구된 모든 시편에 대해, 대부분의 오염물이 완벽하게 제거되는 것으로 나타났다. 길이가 6cm인 파이프 시편에 대해서는 오염물의 가 제거되었다. Ultrasonic decontamination of the type 304 stainless steel specimen loosely contaminated with powders was investigated. Decontamination factors (DFs) by the three kinds of ultrasonic media such as water, pure PFC (Pefluorocarbon, ) and a mixed solution of anionic surfactant were determined. The determined DF values were 20, 50 and 200, respectively. This significant difference in the decontamination factors for the different decontamination solution was well explained by the surface tension of the media as well as the interaction between the positively charged surface of powders and the anionic surfactant. Ultrasonic decontamination behavior of the loosely contaminated metal specimens such as plate, pipe, welding specimen and crevice specimen in the mixed solution of PFC and anionic surfactant was also investigated. The contaminants were completely removed for the tested specimens except for the longest specimen. For 6-cm long pipe specimen, however, of the contaminants were removed.
( Jun Young Do ),( Seok Hui Kang ),( Jong Won Park ),( Kyung Woo Yoo ),( Kyu Hyang Cho ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: The aim of the present study of the general population was to provide additive information whether body indices using body composition are helpful for predicting metabolic syndrome. Methods: Those who had no information regarding renal function and/or metabolic markers, had no information regarding body composition, or were younger than 18 years of age were excluded. As a result, 15,965 participants were included in this study. Results: For the male participants, the area under the curves (AUCs) were 0.754 for FM index, 0.685 for LM index, 0.573 for BMC index, and 0.823 for WHtR. For the female participants, the AUCs were 0.769 for FM index, 0.749 for LM index, 0.574 for BMC index, and 0.870 for WHtR. The WHtR had the highest AUC and was the best predictor of metabolic syndrome for both genders. In addition, the WHtR had the highest AUCs for components of metabolic syndrome. Multiple linear regression analyses were designed by using body indices, age, alcohol consumption, smoking, and physical activity. The standardized ß value for WHtR was greatest among body indices. Multivariate logistic regression showed that male participants in the second, third, and highest quartiles had a 3.897-fold, 9.276-fold, and 35.257-fold increased risk of metabolic syndrome compared with patients in the lowest quartile and female participants in the second, third, and highest quartiles had a 4.154-fold, 17.352-fold, and 55.735-fold increased risk of metabolic syndrome compared with patients in the lowest quartile. Conclusions: Among the classic body indices, WHtR is most useful to predict the presence of metabolic syndrome and insulin resistance in the Korean population.
Hui-Jun Won,Min-Gil Kim,Gye-Nam Kim,Chung-Hun Jung,Jin-Ho Park,Won-Zin Oh 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.1
Cs 이온에 대해 선택성을 갖는 ferrocyanide-음이온 교환수지를 제조하여 모의 제 염폐액 내에 존재하는 Cs 이온에 대한 흡착실험을 수행하였다. 제조된 이온교환 수지가 citric acid를 주제염제로 하는 제염폐액 내에 존재하는 Cs+ 이온에 대한 흡착능력은 상용 양이온교환수지에 비해 4배 이상 효과적인 것으로 나타났다. 모의 제염폐액과 선택성 이온교환수지를 접촉시킨 후 360분이 경과하면 금속이온에 대한 흡착반웅이 평형에 도달하였다. 본 연구범위에서 Co 이온농도가 필요이상 증가하게 되면 Cs 이온의 흡착율은 감소하였다. 과산화수소와 히드라진을 사용한 선택성 폐 이온교환수지의 재생실험 결과 전기중성화조건을 만족시키기 위해 Cs 이온이 수지로부터 용출됨을 확인하였고 열화없이 재 사용가능성을 확인하였다. Preparation of ferrocyanide-anion exchange resin and adsorption test of the prepared resin on the Cs$ion were performed. Adsorption capability of the prepared resin on the Csion in the simulated citric acid based soil decontamination waste solution was 4 times greater than that of the commercial cation exchange resin. Adsorption equilibrium of the prepared resin on the Csion reached within 360 minutes. Adsorption capability on the Csion became to decrease above the necessary Coion concentration in the experimental range. Recycling test of the spent ion exchange resin by the successive application of hydrogen peroxide and hydrazine was also performed. It was found that desorption of Csion from the resin occurred to satisfy the electroneutrality condition without any degradation of the resin.