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감전사고 방지를 위한 물놀이.입욕시설의 조명설비 시설기준 개선방안 연구
김종민,김한상,김기현,이건호,Kim, Chong-Min,Kim, Han-Sang,Kim, Gi-Hyun,Yi, Geon-Ho 한국조명전기설비학회 2006 조명·전기설비학회논문지 Vol.20 No.4
A person's body resistance in the waterpark, public bath and similar places is much lower than any other places due to effect of water. So low voltage may create a shock hazard for the human body in case of leakage or fault currents from lighting unit etc. We researched the related regulations which are internal standards, NEC, IEC and investigated the actual conditions for the prevention of electric shock due to lighting units in the waterpark, public bath and similar places. As a results internal standard is obscure as compared with NEC, IEC which is the limit of application and distinction of environment condition. And then internal standard's using voltage is higher than NEC, IEC in filed of water. Studies show that internal standard should be revision that raise the installation height of lighting unit, mark IP level surface of lighting unit and limit using voltage to line-to-line voltage 물놀이 입욕시설 내에서 입욕자는 물의 영향으로 인하여 인체의 피부저항이 다른 어느 장소보다도 현저히 낮은 상태에 있게 된다. 따라서 조명기구 등에 누전이 발생할 경우 미약한 전압에서도 치명적인 감전재해의 우려가 있다. 본 연구는 물놀이 입욕시설 내에서의 조명기구에 의한 감전사고를 방지하기 위하여 국내 외 관련규정을 비교 분석하였으며 또한, 국내 시설실태를 파악하였다. 그 결과 국내의 규정은 외국기준에 비해 적용범위가 불명확하고 환경조건의 구별이 불투명하고 사용전압이 높은 것으로 나타났다. 따라서 국내의 규정도 조명시설의 설치높이를 상향조정하고 조명기기의 외함에는 방수등급의 표기, 선간전압으로의 사용전압을 제한하는 등의 개정이 필요한 것으로 나타났다.
췌장암의 외과적 절제술 후 항암플러스로 항전이 및 재발 방지 중인 환자 증례보고
김종민,박재우,유화승,이연월,조종관,Kim, Jong-Min,Park, Jae-Woo,Yoo, Hwa-Seung,Lee, Yeon-Weol,Cho, Chong-Kwan 대한암한의학회 2011 大韓癌韓醫學會誌 Vol.16 No.1
Objective : To investigate the anti-metastasis and preventing relapses of HangAm-Plus (HAP) on pancreatic cancer patient. Methods : A 49 year old male patient diagnosed with pancreatic cancer (T3N0M0) was admitted to EWCC (East-West Cancer Center) on Jul. 21st 2008. He had operated pylorus preserving pancreatoduodenectomy (PPPD) and came to the anti-metastasis and preventing relapses on pancreatic cancer patient. The patient was treated with HangAm-Plus (HAP) (3,000 mg/day) for the period of 33 months from Jul. 21st, 2008 to Apr. 7th, 2011. Tumor markers (CEA and CA19-9) were used to evaluate the disease progression of the patient. Positron Emission Tomography (PET) and Computed Tomography (CT) were also followed up. Results : HAP treatment was well tolerated by the patient. Patient has shown 33 months of disease free survival until now. Conclusion : This case study supports HAP's potential efficacy in the anti-metastasis and preventing relapses of pancreatic cancer patient.
십전대보탕가감방을 투여한 간세포암종 환자에서 범혈구감소증 호전 및 간수치 상승 증례
김종민,전형준,조종관,이연월,유화승,Kim, Jong-Min,Jeon, Hyung-Joon,Cho, Chong-Kwan,Lee, Yeon-Weol,Yoo, Hwa-Seung 대한한방내과학회 2013 大韓韓方內科學會誌 Vol.34 No.4
Objectives : To observe the therapeutic effects of an oriental herbal prescription in a hepatocellular carcinoma patient with splenomegaly and pancytopenia. Methods : Modified Sipjeondaebo-tang was prescribed three times a day to a hepatocellular carcinoma patient with splenomegaly and pancytopenia. Laboratory tests were carried out regularly to observe the therapeutic effects of the oriental herbal prescription for pancytopenia. Results : When treated with modified Sipjeondaebo-tang including Cinnamomi Cortex, the levels of white blood cells, red blood cells, hemoglobin, and hematocrit increased. However, aspartate transaminase, alanine transaminase, alkaline phosphatase, gamma-glutamic transpeptidase, total bilirubin, direct bilirubin levels also increased. Conclusions : Administering modified Sipjeondaebo-tang with Cinnamomi Cortex showed effect in improving pancytopenia but an increase in liver enzyme levels was also observed.
초등교원의 동료네트워크가 교직만족감과 행복감에 미치는 영향
김종민 ( Chong Min Kim ) 한국초등교육학회 2015 초등교육연구 Vol.28 No.1
본 연구는 초등교원의 동료네트워크가 교직만족감과 행복감에 미치는 영향은 어떠한가라는 연구문제를 탐색하고자 20개 초등학교 513명의 교사를 대상으로 설문을 수합하여 사회연결망분석과 2수준 다층모형을 사용하여 분석하였다. 그 결과 초등교원의 동료네트워크는 교직만족감과 행복감증진에 긍정적인 영향을 미치는 것으로 나타났다. 구체적으로 동료네트워크 외향연결중심성(outdegree centrality)은 교사의 특성성별, 학력, 경력, 담임여부, 보직)과 학교의 특성(학급수, 남자교사 비율, 교총가입비율)을 통제한 상태에서 교직만족감과 행복감의 증진 그리고 부정적 정서의 감소에 유의미한 영향을 미치는 것으로 나타났다. 교사의 동료네트워크 내향연결중심성(indegree centrality) 또한 교직만족감과 행복감의 증진에 유의미한 영향을 미치는 것으로 나타났다. 연구결과를 바탕으로 초등교원의 동료네트워크에 대한 논의와 시사점을 제시하였다. This study analyzed the effects of elementary teacher colleague networks on their teacher job satisfaction and happiness of 513 elementary teachers in 20 schools in Korea with Social Network Analysis(SNA) and two-level Hierarchical Linear Models(HLM). The results showed that elementary teacher colleague networks statistically positively affected their teacher job satisfaction and happiness. Specifically, after controlling for teacher attributes(gender, master degree, teaching experience, self-contained classroom teacher, and formal leadership role) and school attributes(class size, the ratio of male teacher, and the ratio of membership in teacher union), as the outdegree centrality of teacher colleague networks increased, teacher job satisfaction and happiness increased while negative emotion decreased. Additionally, as the indegree centrality of teacher colleague networks increased, teacher job satisfaction and happiness increased while negative emotion decreased. Based on these results, discussion and conclusion was here provided.
김종민(Chong-Min Kim),방선배(Sun-Bae Bang),송길목(Kil-Mok Shong),신진용(Shin-Jin Yong),김창환(Chang-Hwan Kim) 대한전기학회 2010 전기학회논문지 P Vol.59 No.2
Fault rate of RCD is increasing due to deterioration and long period usage in domestic. According to Korean standards, the RCDs are installed in panel boards. When RCDs are installed at outdoor, the RCDs must be protected from uv, water etc. by using the housing. However, many RCDs are exposed to the external environment. As a results, many RCDs have malfunctions so that cause the electrical accidents. The RCDs manufactured by four makes were used as the sample to weathering test. Futhermore, those were analyzed the ingredients of RCD'S using SEM, EDX and FT-IR/TAR before and after weathering test.
김종민(Chong-Min Kim),최명일(Myeong-Il Choi),김영석(Young-Seok Kim),방선배(Sun-Bae Bang),송길목(Kil-Mok Shong),서정열(Jung-Youl Seo) 대한전기학회 2010 전기학회논문지 P Vol.59 No.4
In this study, an analysis of the used RCD's condition is conducted to assess the effect on environment of installation area, terms of use, corrosion, contamination etc. According to KS C 4613, the used RCDs were tested to get date which is the RCD's life time. And then, the date is analysed using Minitab which is a statistical program for reliability analysis. As a result, The RCD's MTTF for the all samples is 12.7±0.23 years. and the MTTF of RCDs which are used indoor area is 12.9±0.34 years, the MTTF of RCDs which are used outdoor area is 11.9±0.30 years. Futhermore, the MTTF of RCDs which are used in dry area is a 13.1±0.26 years, the MTTF of RCDs which are used in dust area is 13.0±0.57 years, the MTTF of RCDs which are used in moisture area is 8.4±0.77 years.
전국 수용가용 154kV 변압기 현황과 평균사용기간 분석
김종민(Chong-Min Kim),정기석(Ki-Seok Jeong),한가람(Ga-ram Han),박지만(Ji-man Park),이호성(Ho-seong Lee) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.7
본 연구는 국내 자가용 전기설비 중 154kV급 변압기의 설치현황과 평균사용시간에 관하여 분석한 연구이다. 분석데이터는 한국전기안전공사 검사데이터를 활용하였으며, 분석결과 MTTF는 42.636년이며, ±95 % 신뢰구간에서 상한치는 47.396년, 하한치는 38.354년으로 분석되었다. 백분위수 B<sub>10</sub> 은 19.553년이며, 상한치는 21.017년, 하한치는 18.190년이다. 욕조곡선 개념의 마모기 시점의 고장률 수명은 35년±3년으로 추정되었다.