Clinoptilolite 계열의 국내산 천연제올라이트의 상규명 및 NH₄^+ : 이온교환능에 관한 연구

김화중,이기정,이명철 건국대학교 1995 學術誌 Vol.39 No.2

Domestic natural zeolite, Clinoptilolite series was investigated to identify the phase and to study the capability of NH4+-ion removal from the solution system. The domestic natural zeolite mined from Young-II man area was proven to be a thermally unstable zeolite, heulandite by XRD and FT-IR analyses. In addition, the heulandite exchanged by K+ ion showed the highest thermal stability upon the heat-treatments. However, the best capability of removing NH4+-ion from the solution system was the Na+-exchanged zeolite.

單調增加荷重을 받는 平面 트러스의 複合 非線型 擧動에 關한 硏究

權寧煥,金和中,金明璇,魯德煥 경북대학교 산업기술연구소 1990 産業技術硏究誌 Vol.18 No.-

The object of this study is that develop computer program as being derive simple formula considering complex (material and geometric) nonlinear, and select the most useful truss in efficiency with the analysis Howe truss, Fink truss, Pratt truss and Warren truss. The complex nonlinear behavior is considered in this paper, so is acquired following results. 1. We developed program that could analyze complex nonlinear of plane truss. 2. In view of the results analyzied the numerical analysis example of plane truss, When Howe truss, Fink truss, Pratt truss, and Warren truss are equal to weight and span, and the same load is loaded. Among the trusses of same weight, Warren truss is the most useful in efficiency. And When height of warren truss is changed, the lower height of truss, the more useful in efficiency

철강 제조업체 근로자에서 효소면역측정법을 통한 B형 간염 바이러스 표지자 조사

이종영,강승원,하명화,김중구,배삼덕,김두희,남복동 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.2

포항 지역 한 철강 제조업에서 1995년 1월부터 10월 사이에 실시한 정기 건강진단을 받은 남자 근로자 11,523명을 대상으로 HBsAg 및 Anti-HBs, HBeAg 및 Auti-HBe은 EIA법으로, SGOT 및 SGPT는 반응속도법(IU)으로 검사하였다. 그리고 이들 대상자에서 교육정보, 근무 형태, 음주 및 흡연습관과 간기능 이상 여부를 조사하여 다음과 같은 결과를 얻었다. 1. B형 간염 표지자의 분포를 보면 HBsAg(+)/Anti-HBs(-)는 8.1%, HBsAg(-)/Anti-HBs(+)는 60.5% 그리고 HBsAg(+)/Anti-HBs는 0.1%이었으며, HBsAg의 양성율은 8.2%, Anti-HBs 양성율은 60.6%이었다. 2. 연령에 따라 HBsAg(+)/Anti-HBs(-)와 HBsAg(-)-HBs(+)가 유의하게 증가한 반면(p<0.05), 교육정도와 근무형태에 있어서는 통계적으로 유의한 차이가 없었다. 3. 음주율은 HBsAg(+)/Anti-HBs(-)에서 HBsAg(-)/Anti-HBs(-)와 HBsAg(-)/Anti-HBs(+)의 84.6% 및 85.7%에 비해 낮지만 73.9%나 되었고, 흡연율은 HBsAg(-)/Anti-HBs(+), HBsAg(+)/Anti-HBs(-) 및 HBsAg(-)/Anti-HBs(-)에서 54.3%, 53.7% 및 53.0%의 순서로 나타났다. HBsAg(+)/Anti-HBs(-)에서 간기능 이상자가 40.1%이었으나 HBsAg(-)Anti-HBs(-)와 HBsAg(-)/Anti-HBs(+)에서도 각각 21.9% 및 18.4%를 차지하였다. 4. HBsAg(+)에서의 e항원에 대한 표지자의 분포를 보면 HBeAg(+)/Anti-HBe(-)는 31.3%, HBeAg(-)/AntiHBe(+)는 55.0% 그리고 HBeAg(+)/Anti-HBe(+)는 1.6%이었고 HBeAg(+)/Anti-HBe(-)는 연령에 따라 감소하고 HBeAg(-)/AntiHBs(-)와 HBeAG(-)/AntiHBe(+)는 증가하였다. HBsAg 양성자중 HBeAg의 총 양성율은 32.9%로 연령이 증가할수록 유의하게 감소하였다. 본 연구는 근로자의 B형 간염 표지자 조사에 있어 Anti-HBs의 검사에서는 EIA 방법으로 실시해야 하는 근거를 제시하는 것이며, 철강산업 근로자에서는 B형간염 이외의 간장질환에도 관심을 가져야 할 것으로 보이며 음주 문제에 대한 대책마련이 시급히 이루어 져야 할 것으로 생각된다. A study for seroprevalence of Hepatitis B virus markers (HBsAg, Anti-HBs, HBeAg and Anti-HBe) by EIA method and the Liver Function Test(SGOT and SGPT) using kinetic method was carried out from January to October 1995 among male workers of a major iron and steel manufacturing company located in Pohang. The results were as follows; 1. The distribution of hepatitis B virus markers showed that the proportions of HBsAg(+)/Anti-HBs(-), HBsAg(-)/Anti-HBs(+) and HBsAg(+)/Anti-HBs(+) were 8.1%, 60.5% and 0.1%, respectively. The positive rate of HBsAg in all subjects was 8.2%, whereas that of anti-HBs was 60.6%. 2. The proportions of HBsAg(+)/Anti-HBs(-) and HBsAg(-)/Anti-HBs(+) increased significantly with age. While the distribution of hepatitis B virus markers exhibited no significant differences among the groups classified by educational background or work type. 3. The proportion of drinkers in HBsAg(+)/Anti-HBs(-)(73.9%) was significantly lower than those of HBsAg(-)/Anti-HBs(-) and HBsAg(-)/Anti-HBs(+) (84.6% and 85.7%, respectively). The proportions of smoking for the three groups of HBsAg(-)/Anti-HBs(+), HBsAg(+)/Anti-HBs(-) and HBsAg(-)/Anti-HBs(-) were 54.3%, 53.7% and 53.0%, respectively(p<0.01). The proportion of the subjects with abnormal liver function test in HBsAg(+)/Anti-HBs(-) was 40.1%, whereas those in HBsAg(-)/Anti-HBs(-) and HBsAg(-)/Anti-HBs(+) were 21.9% and 18.4%, respectively. 4. The distribution of e Ag markers among HBsAg(+) subjects showed that the proportions of HBeAg(+)/Anti-HBe(-), HBeAg(-)/Anti-HBe(+) and HBeAg(+)/Anti-HBe(+) were 31.3%, 55.0% and 1.6%, respectively. The proportion of HBeAg(+)/Anti-HBe(-) decreased significantly with age and those of HBeAg(-)/Anti-HBe(-) and HBeAg(-)/Anti-HBe(+) increased with age. The positive rate of HBeAg among HBsAg(+) subjects was 32.9%. In conclusion, as a screening method, EIA is recommended to test hepatitis B virus markers, especially when examining Anti-HBs more sensitively. For the workers of the iron and steel manufacturing company studied, liver diseases caused by other than hepatitis B should be given a special care including an education avoiding alcohol drinking.

캡슐내시경과 단일풍선 소장내시경으로 진단된 공장의 간질종양 1예

송도경,심기남,태정현,김경진,송명은,송하응,윤혜원,정가영,정정화 이화여자대학교 의과학연구소 2012 EMJ (Ewha medical journal) Vol.35 No.2

Gastrointestinal stromal tumors (GISTs) are common mesenchymal tumors that arise in the wall of the gastrointestinal tract. We report a case of obscure gastrointestinal bleeding due to a GIST of the jejunum successfully documented by videocapsule endoscopy (VCE) and single-balloon enteroscopy (SBE). A 36-year-old man with hematochezia was referred for further evaluation of no evidence of bleeding focus on esophagogastroduodenoscopy and colonoscopy. A VCE showed a suspicious ulcerative hyperemic mass that located in about 1 hour apart from duodenal second portion. SBE revealed a nonbleeding 4×2 cm mass with an ulcer at the proximal jejunum. The patient underwent laparoscopic resection without complication. Histological examination revealed a well circumscribed, dumbbell-shaped firm mass comprised of spindle cells. Immunohistochemical staining for CD 117 was diffusely positive, whereas staining for S-100, CD 34 and MIB-1 was all negative. It was confirmed to be a low-grade GIST at the proximal jejunum.

Effect of CLX Training Combined with PNF Pattern on Balance Ability

Jung, Ji-hoon,Kim, Min-ju,Woo, Hee-jung,Kim, Yi-seul,Kim, Myung-hee,Song, Seung-ryul,Kang, Se-mi,Choi, Yi-wha,Kim, Jung-hee Korean Physical Therapy Science 2019 대한물리치료과학회지 Vol.26 No.1

Background: PNF patterns are the basis of human motion and can be expected to improve joint motion and coordination. Combined physical training with CLX training and PNF patterns can help to improve balance and perform functional mobility in the lower limb. The purpose of this study is to confirm the effect of CLX training combined with PNF pattern on balance ability. Design: Randomized Controlled Trial. Methods: Total 16 persons participate in this study and were randomly divided in two groups the experimental group and control group. In the experimental group, exercise program with PNF pattern and CLX was performed total 24 times for 8 weeks. In the exercise program, the PNF pattern composed of D1F and D2F was applied with CLX in five positions. Single limb hop test, Y-balance test and Balance Error scoring system were performed to evaluate the balance ability according to the interventions. Results: In the single limb hop, the experimental group revealed a significant difference than a control group (p<0.05).The result of balance error scoring system, experimental group revealed significant differences between before and after training and revealed significant differences than a control group (p<0.05). In the Y-balance test, the experimental group revealed significant differences than a control group in both side. Conclusion: The results of this study showed that the CLX exercise in combination with the PNF pattern had a positive effect on enhancing the balance ability of the normal adult and performing the functional mobility of the lower limb.

국가대표 크로스 컨트리 스키선수의 운동능력 평가 척도개발 타당도

정명환(Myung Hwan Jung),선병기(Byung Ki Sun),김명화(Myung Wha Kim) 고려대학교 스포츠과학연구소 1996 스포츠문화과학연구 Vol.8 No.0

N/A N/A

공무원 노사협의제도의 국가 간 비교연구

정재명(Jung, Jae-Myung),김동원(Kim, Dong-Won),김영우(Kim, Young-Woo),정창화(Jung, Chang-Wha) 한국지방정부학회 2009 지방정부연구 Vol.13 No.1

본 연구는 우리나라 공무원 노사관계에서 상생적 공무원 노사관계를 구축하기 위한 하나의 단계로써 서구 선진 5개국(미국, 영국, 프랑스, 독일, 스웨덴) 노사협의제도의 특성들을 비교·고찰해보고 이를 통해 현재의 우리나라 노사 대립관계를 상생적노사관계로 전환시킬 시사점을 찾고자 했다. 이를 위해 각국의 노사협의제도의 주요특성들을 비교 분석했다. 분석결과 노사협의제도의 정착과 발전의 경우 대부분의 국가에서 정부의 의지가 대단히 중요한 역할을 하는 것으로 분석되었다. 또한 노사협의제도가 법률로써 규정된 경우가 노사협약이나 대통령령으로 규정된 경우(미국, 영국)보다 지속력이 강한 것으로 나타났다.(스웨덴, 프랑스, 독일), 노사협의위원회의 권한은 워낙에 국가별로 문화와 사회구조적인 상황이 방영된 상태에서 주어지기 때문에 수렴이론으로 정립하는 것은 대단히 어려운 것으로 나타났다. This essay traces lessons from the operation, origin, structure, and rights of the consultative systems in the five developed countries. The United States, United Kingdom, France, Germany, and Sweden as a pilot step to establish collaborative labor relations in the public sector of South Korea. The analysis supports the claim that the government's Positive intent for the system in most countries studied is the primary factor to promote an establishment and development of the system. Moreover, the analysis indicates that the countries regulate the system in a similar way of law as France, Sweden, and Germany. The low-based regulation system tended to stay longer than the other systems which regulate it based on executive order or labor-management agreement. Finally, this paper reports that it is difficult to designate a convergence theory induced from the rights of labor-management committee because there are cultural, social structural and historical diversities in the countries studied.

선천성 갑상선기능저하증에 대한 신생아 선별검사의 재검율, 소환율 및 참고치 설정

이정명,최태윤,이동화,이동환 대한임상검사정도관리학회 2001 臨床檢査와 精度管理 Vol.23 No.1

COMPARATIVE ASSESSMENT OF DNA ADDUCT FORMATION, SALMONELLA MUTAGENICITY, AND CHROMOSOME ABERRATION ASSAYS AS SHORT-TERM TESTS FOR DNA DAMAGE

Choi, Myung Ja,Lee, Jung Wha,Lee, Byung Mu 성균관대학교 약학연구소 1996 成均藥硏論文集 Vol.8 No.1

DNA adduct formation assay (DAFA) was carried out to compare dose responses with the Ames test and chromosomal aberration test using aflatoxin B_1 (AFB_1) and benzo[a]pyrene (BaP). In the bacterial mutation test, AFB_1 and BaP (-01) ㎍/plate) were all positive in TA97a and TA100 with dose-related revertants. However, the slopes of the dose-response curves were gradual (slope 0.55-3.73, r=.84-.98). In the chromosome aberration test, a significant increase in the percentage of chromosomal aberrations was obtained from male ICR mouse spleen cells treated with AFB_1 and BaP, but a dose-related increase was insensitive (slope 0.09-0.23, r=.75-.78). The incidence of chromosomally aberrant spleen cells treated with BaP was significantly increased compared with AFB_1. DAFA was performed in vitro with [^3H]-AFB_1 and [^3H]BaP. These two carcinogens were able to induce genotoxicity and showed good dose-related increases in terms of DNA dduct formation (slope 0.78-1.28, r=1.00). Coefficients of variation (CV) for the slope of each dose-response curve were much lower in DAFA in vitro (CV 15.09-18.34%) than those in any other test (CV 19.69-99.33%), Ames test; 18.89-45.58%, chromosome aberration test). furthermore, DFA in vivo was performed to investigate organotropic DNA adduct formation and persistence in Sprague-Dawley rats ip or orally treated with AFB_1 and BaP. DNA adducts were monitored for 48-96 h by enzyme-linked immunosorbent assay (ELISA) using corresponding monoclonal antibodies, 6A10 and 8E11. DAFA in vivo demonstrated that the liver and kidney might be the probably target organs for AFB_1 with the highest formation and persistence of DNA adducts and the lung and liver for BaP regardless of the route of administration. The results suggest that DAFA in vitro could be useful for detecting genotoxic compounds, and DAF in vivo should also be considered as a good alternative method for the screening of organ-specific chemical carcinogens.

u-Defense를 위한 유비쿼터스 기술 동향

정명호(Jung Myung Ho),김영조(Kim Young Jo),유승화(Yoo Seung Wha),노병희(Roh Byeong Hee),김기형(Kim Ki Hyung) 한국통신학회 2006 한국통신학회 학술대회논문집 Vol.2006 No.7