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이종철,박방삼,Lee, Jong-Cheol,Park, Bang-Sam 한국방위산업진흥회 2002 國防과 技術 Vol.- No.283
탄약 비군사화 심포지엄에 참석하여 안전하고 환경친화적인 불용탄 처리관련 기술현황을 분석하고 실제 운영중인 일부시설을 견학할 수 있었다. 또한 이 기간중 DAC의 주선하에 태평양지역 국가들의 회의 참석자들과의 별도 화합으로 Demil 정보를 교환하였다. 이와 같은 미국의 노력은 이 지역의 Demil 기술 종주국으로서 지도자 역할을 자임하려는 노력이 역력하였다. 현재 미국의 비군사화 사업은 대 테러전이 계속 진행됨에 따라 예산지원 우선순위에서 낮아져 향후 1-2년간은 사업규모의 축소 또는 지연이 예산된다. 따라서 정부내의 타부서와의 기술협력을 모색하여 기술개발은 꾸준히 이루어 질 것이다.
대황(大黃)의 Elastase 활성 억제와 Tyrosinase 억제연구
이종철,김경준,Lee, Jong-Chul,Kim, Kyung-Jun 대한한방안이비인후피부과학회 2009 한방안이비인후피부과학회지 Vol.22 No.3
Objective : Recently, the demands for the effective and safe depigmentating and anti-aging agents of the skin have increased due to the medical, pharmaceutical and cosmetic reasons. The aim of this study is to search new materials from the traditional herbal medicines which inhibit the aging process of skin in vitro. Methods : herbal medicines(80% ethanol or water extracts) were screened for their inhibitory activities against elastase. Results : Rheum undulatum (final concentrstion 1 mg/ml) appeared over 30% of inhibition of elastase activity. so we are investigated anti wrinkle effects of Rheum undulatum look through MMP-1 inhibition activity. also Extracts of Rheum undulatum showed higher anti tyrosinase activity than arbutin (final concentration 1 mg/ml). Conclusion : These results suggest that herbal medicines could be strong potential sources of inhibition of anti-aging and whitening effects for the skin.
갑상선암 수술 후 재발한 경부림프절의 위치 확인에 있어서 초음파 유도하 참숯 현탁액 표식의 유용성: 예비보고
이종철,한명월,이정현,노종렬,남순열,김상윤,최승호,Lee, Jong Cheol,Han, Myung Woul,Lee, Jeong Hyun,Roh, Jong-Lyel,Nam, Soon Yuhl,Kim, Sang Yoon,Choi, Seung-Ho 대한기관식도과학회 2011 大韓氣管食道科學會誌 Vol.17 No.1
Objectives The high sensitivity of ultrasound and thyroglobulin determination for follow-up of differentiated thyroid cancer allows early detection of nonpalpable recurrences. Intraoperative localization of these small foci in previously dissected necks is a surgical challenge. We assessed the safety and effectiveness of ultrasound-guided tattooing (US-tattoo) with a charcoal suspension for localizing nonpalpable cervical recurrences after thyroidectomy for thyroid cancer. Subjects and Methods Between March 2009 and December 2010, we retrospectively reviewed 19 patients who underwent US-tattoo with injection of a charcoal suspension for recurrent thyroid papillary cancer on central neck compartment after thyroidectomy. All patients underwent the surgical dissection after US-tattoo. The complications and effectiveness of US-tattoo were evaluated. Results The technical success rate of US-tattoo for suspicious lesions was 100%. There was no complication with regard to US-tattoo. During surgery, all but one tattooed lesions were detected by surgeons. On final pathologic reports, all recurrence lesions but two cases were successfully removed. Conclusion Preoperative US-tattoo is a safe and effective method for successful reoperation of central neck compartment recurrences after thyroidectomy.
산지(産地) 반양직묘포(半養直苗圃)에서의 묘삼수량(苗蔘收量)과 토양이화학성간(土壤理化學性間)의 관계조사(關係調査)
이종철,변정수,안대진,Lee, Jong-Chul,Byen, Jeong-Su,Ahn, Dai-Jin 한국토양비료학회 1988 한국토양비료학회지 Vol.21 No.2
산지(産地) 반양직묘포(半養直苗圃)(활엽수(闊葉樹)를 많이 넣고 여러번 경운(耕耘)한 밭흙을 곱게 쳐서 만든 묘포(苗圃)) 29개포장(個圃場)에서 묘포토양(苗圃土壤) 이화학성(理化學性)과 묘삼수량(苗蔘收量)과의 관계룰 조사한 결과(結果)는 다음과 같다. 1. 사용가능묘삼생산량(使用可能苗蔘生産量)은 간(間)($90{\times}180cm$) 당(當) $362{\pm}226$본(本)이었다. 2. 세사(細砂)+극세사(極細砂)의 함량(含量)이 많을수록 묘삼개체근중(苗蔘個體根重)이 감소(減少)되었다. 3. 묘포토양내(苗圃土壤內)에서 pH는 OM, K, Ca 및 Mg와, EC는 Ca, Mg 및 N와 각각(各各) 정상관(正相關)이 있었다. 4. 묘삼개체중(苗蔘個體重)은 토양내(土壤內) pH 상승(上昇)과 OM, K, Ca 및 $P_2O_5$ 함량(含量)이 많을수록 증가(增加)되나 N과는 상관(相關)이 없었다. 5. 토양내(土壤內)에 $P_2O_5$, K 및 Ca 함량(含量)이 많을수록 묘삼근내(苗蔘根內) 함량(含量)이 증가(增加)되었다. 6. 근내(根內)의 $P_2O_5$, K의 흡수(吸收)가 증가(增加)될수록 묘삼개체근중(苗蔘個體根重)이 증가(增加)되었다. To get the basic information about ginseng seedling production, yield of ginseng seedling and soil physico-chemical components of Ban-Yang-Jik (semimodified soil) nursery in 29 farmer's field were investigated. The number of available seedling per Kan (Kan means $180{\times}90cm$ area) is $362{\pm}226$. Root weight per seedling was negatively correlated with ammount of fine and extremely fine sand. Positive correlations were shown between pH and OM, K, Ca and Mg, and also between EC and Ca, Mg and ammonium and nitrate nitrogen in soil of nursery. There were significant linear relations between root weight and OM, K, Ca and Mg in soil of nursery. On the other hand, quadratic relation was held between the root weight and $P_2O_5$, but the root weight has no correlation with nitrogen. The nitrogen contents of soil might not influence on the growth of ginseng seedling as greatly as those of $P_2O_5$, K and Ca. The contents of $P_2O_5$, K and Ca in root were increased with increase of the contents of $P_2O_5$, K and Ca in soil of nusery, respectively. It showed the linear correlation between the root weight and $P_2O_5$ and Ca, otherwise quadratic correlation between the root weight and K in root.
이종철,최수,Lee, Jong-Chol,Choi, Soo 한국군사과학기술학회 2006 한국군사과학기술학회지 Vol.9 No.3
This paper reports the apparatus and method for the safe treatment of pentachlorophenol(PCP)-treated ammunition box by solvent extraction. Experimental variables were chosen as the composition of solvents, types of substance(chips and sawdust), temperatures and sonication to obtain maximum PCP removal from wood samples of the dismantled ammunition box. Up to 99% of PCP in the wood chip was extracted within 2 hours at room temperature when using methanol as the solvent. The extraction volume ratio of methanol per dried sample was about 10. Type of samples, extraction temperature and sonification showed little effects on PCP extraction. Based on this study, a resource recycling system for the treatment of ammunition boxes was recommended.
이종철,최주호,박수연,최정화,김종한,Lee, Jong-Cheol,Choi, Joo-Ho,Park, Soo-Yeon,Choi, Jeong-Hwa,Kim, Jong-Han 대한한방안이비인후피부과학회 2012 한방안이비인후피부과학회지 Vol.25 No.2
Objective : We report the effects of Korean medical treatment for Verruca Plana. Methods : We used herbal treatment, acupuncture, herbal acupuncture. To evaluate the results of this treatment, we observed the patient's condition and photographed. Results : After Korean medical treatment, the patient's warts remarkably disappeared and there was no recurrence. Conclusion : We suggest that Verruca Plana can be treated by Korean medical treatment effectively. We expect these study results help provide useful evidence of Korean medicine as an effective treatment for Verruca Plana.