대동맥 협착증과 동반된 출혈성 위장관 동정맥 기형에서 Estrogen-Progesterone 치료 1예

김도연,김화정,김효정,남준식,박수영,박영미,신정은,주미순,황민규,정혜경,손혜영,이선영,이한주 大韓消化器內視鏡學會 1999 Clinical Endoscopy Vol.19 No.부록2

연폭로 근로자들에서 빈혈증 관련 인자에 관한 연구

황보영,김용배,김화성,이성수,안규동,이병국 순천향대학교 교수학습개발센터 2004 Journal of Soonchunhyang Medical Science Vol.10 No.3

Objectives : This study intended to obtain the interrelationship of lead exposure indices and anemia related factors for the better health management of lead exposed workers. Methods : 502 male workers in storage battery industries as lead exposed group and 106 male office workers as contorl group were selected for this study. The examined variables wer age, work duration, smoking and alcohol crinking habit, blood zinc protoporphyin concentraion (ZPP), blood lead concentration (PbB), urinary δ-aminoevulinic acid (ALAU), hemoglobin (Hb), hematocrit (Hct), serum calcium (S-Ca), serum iron (S-Fe), total iron binding capacity (TIBC), and percentage trasferrin saturation (PTS). Results : The means of ZPP, PbB ALAU in lead exposed proup were 58.4±35.7 ㎍/㎗, 27.6±10.9 ㎍/㎗, and 1.61±2.00 mg/ℓ, respectively. These three values in lead exposed group were significantly higher than control group (P<.05). The means of Hb, Hct, S-Ca, S-Fe, TIBC, PTS in lead exposed group were 15.3±1.1 g/㎗, 47.2±4.5 %, 9.4±0.4 ㎍/㎗, 124.0±67.5 ㎍/㎗, 317.1±68.5 ㎍/㎗, and 38.7±15.2 %, respectively. Hb, Hct, S-Ca, S-Fe, and TIBC in lead exposed group were significantly lower than contrl group (P<.05). PTS was no significant difference in lead exposed group and control group (P> .05). Hct, S-Ca, S-Fe, PTS were significant positive correlation with Hb and ZPP, corrected PbB, AlAU were significant negaitive correlation with Hb in lead exposed group (P< .05). On multiple regression using ZPP as a dependent variable and PbB, S-Ca and S-Fe as independent variables after adjustment for possible confounder such as age, smoking and drinking habit, Pbb, S-Ca, S-Fe and age contributed to ZPP. Conclusions : As the result of this study, it was suggested that inclusion of S-Ca, S-Fe, PTS measurement as a anemia screening test for lead workers was highly recommended for the effective prevention and early diagnosis of anemia.

폐전선 피복재 건류탄을 이용한 제강분진처리를 위한 기초연구

황용길,이상화,이성룡,정석수,최재신,조충형 東亞大學校 1995 東亞論叢 Vol.32 No.-

Distilled carbon from waste electric wire coated by vinyl is used to recover valuable metal such zinc, lead and iron in dust. Pemeability and compressive tests are who done to present basic data on extraction of zinc in dust. Experimental results obtained from sintering property of steelmaking dust, distilled carbon from waste electric wire coated by vinyl and waste pulp sludge mixture briquet at various sintering temperature are as followings; Permeability is increased as increasing distilled carbon and pulp amount at higher temperature than room temperature condition. Compressive strength at room temperature is increased as increasing distilled carbon and decreasing waste pulp amount, but decreased as increasing temperature and waste pulp amount. Weight Loss reaction experiment is increased a increasing distilled carbon and waste pulp amount. ZnO and Fe₃O₄ are obtained from sample containing ZnO, Fe₂O₃ and ZnO at 800℃. Permeability test at 500℃ and 800℃ did not well, because of 13.3% CaO in distilled carbon. Sample because semmi melted state at 1000℃. Distilled carbon obtained from waste electric wire showed effect of reduction and flux material.

에탄올-물 혼합용매내에서 2,4,6,N-Tetramethyl Pyridinium Iodide의 회합에 대한 압력효과

黃正儀,池鍾基,李永華,禹義夏 慶北大學校 物理化學硏究所 1984 硏究論文集 Vol.5 No.-

부피 퍼센트 95%의 에탄올-물 혼합용매내에서 2,4,6,N-테트라메틸 피리디늄요오드(TeMPI)의 이온회합 상수(K)를 수정한 자외선분광 및 전기 전도도 혼용법으로 온도범위 25∼50℃, 압력범위 1∼2,000bars에서 결정하였다. K값은 압력이 증가함에 따라서 증가하였고 40℃에서 최대값을 나타내었다. 부분몰부피변화(ΔV)는 비교적 작은 음의 값이 었으며 ΔV의 절대값은 40℃에서 최소값을 보여주었다. TeMPI의 이온 크기 변수(a)는 40℃에서 최대값을 가졌다. ΔH˚값은 40, 25℃ 그리고 50℃에서 각각 영, 음수 및 양수로 나타났으며 엔트로피(ΔS˚)와 자유에너지(ΔG˚)와 같은 다른 열역학변수 값도 계산하였다. 이와 같은 실험결과로부터 우리들은 TeMPI가 압력증가에 대하여 안정화되고, 40℃까지는 온도증가에 따라서도 안정화됨을 보여주었다. 그러나 40℃에서는 TeMPI 두 분자에 있는 8개 메틸기의 분자간 소수성 상호작용으로 인하여 약한 이량체를 형성하고 50℃ 이상에서는 다시 열적으로 분해된다는 결론을 얻게 되었다. The ionic association constants(K) of 2,4,6,N-tetramethyl pyridinium iodide(TeMPI) in 95 volume percentage ethanol-water mixture were determined by a modified UV and conductance method at 25℃ to 50℃ under 1 to 2,000 bars. The K values increase with increasing pressure and have maximum value at 40℃. The partial molar volume change (ΔV) has relatively small negative value and the absolute values of Δ are minimum at 40℃. The ion size parameter(a) of TeMPI have maximum value at 40℃. ΔH˚ values are zero, positive and negative at 40℃, 25℃ and 50℃ respectively. Other thermodynamic parameters such as the changes of standard entropy (ΔS˚) and free energy(ΔG˚) were evaluated. From these experimental results, we came to conclusion that TeMPI is stabilized by the elevation of pressure and that of temperature below 40℃ but weakly dimerized at 40℃ because of the intermolecular hydrophobic interaction of eight methyl groups of two molecules. And it thermally decomposed above 50℃.

電氣爐 製鋼粉塵을 발즈法으로 還元 할때에 爐塊 生成에 관하여

黃龍吉,李相和,金榮熙,李成龍 동아대학교 공과대학 부설 한국자원개발연구소 1993 硏究報告 Vol.17 No.2

The steelmaking dust treatment process has been established through reducing volatilization method in rotary kiln. The more content of zinc in reduced pellets and basicity of pellet is in the range of 1.5~3.0, the more working time needed in rotary kiln, because of decreasing wall accretion. A portion of well forming kiln coating in the furnace is a fourth of the total length from the outlet. Constitutes on the furnace wall accretion composed of the mixtures such as Fe, FeO, Fe₂O₃, Fe₃O₄, ZnO and CaO-SiO₂system, and formation of kiln coating is decreased by adding coke ratio.

피부확장기를 이용한 피부-연부조직의 결손의 피복

황영중,정일화 건국대학교 의과학연구소 1998 건국의과학학술지 Vol.8 No.-

Skin and soft tissue defect could be resurfaced by using skin stretching device developed by Hirshowitz. This instrument, like a tissue expander, used viscoelastic property and creep of the skin characteristics, but it has not disadvantages of tissue expander such as two times operation and long time hospitalization. Skin and soft tissue coverage with the skin stretching device is thought a simple and very useful method. Some clinical experiences and animal studies were reported but human data about histologic changes and safe guideline for successful application were not suggested until now. So 8 cases of skin and soft tissue resurfacing using skin stretching device were performed and histologic change, oxygen saturation according to stretching and skin extension pattern were observed. The results were as follows : 1. All defects were repaired primarily without significant complications like skin necrosis or wound disruption. 2. Skin extension was more prominent in wound margin than far from. 3. At the begining of skin stretching, initial skin tension was 1.9-2.7kg(average 2.3kg) and oxygen tension was changed 42-78% from 94-98% and at the point of 1.5kg skin tension, oxygen tension was 70-86%(average 77.1%). 4. On the histologic evaluation, the thickness of epidermis and dermis were not changed significantly, but elastic and collagen fibers parallel to extension direction and some fragmentations were observed more frequently.

한국 재래 나물콩 품종 및 계통의 콩나물 특성

황영현,이정동,조호영,권택화,정연신 慶北大學校農業科學技術硏究所 2002 慶北大農學誌 Vol.20 No.-

우수한 특성을 가진 나물콩 품종 육성을 위하여 국내 재래 나물콩 계통의 콩나물 특성을 분석한 결과는 다음과 같다. 1. 공시된 301품종 및 계통의 콩나물 전체길이의 범위는 9.5∼23.0cm, 하배축 길이는 5.9∼15.1cm, 뿌리 길이는 3.2∼9.2cm로 다양한 변이를 보였고, 수율에서도 121∼695%로 다양하게 분포하고 있다. 2. 공시된 301품종 및 계통의 종피색에 따른 콩나물 수율은 혼색종피종에서 409%로 가장 높게 나타났고, 백립중에 따른 콩나물 수율은 소립종일수록 높은 경향이었으며, 잔뿌리수는 흑색종피종과 갈색 종피종에서 현저히 적었다. 3. 콩나물 길이와 전체길이에 대한 뿌리길이의 비율, 수율을 기준으로 한 공시품종 및 계통들의 분포에서 장려품종보다 우수한 특성을 가지는 다수의 재래계통이 분포하고 있었다. 4. 콩나물 하배축의 색도는 백색도(L값)에서 장려품종이 재래계통에 비해 백색에 더 가까웠고, 적색도(a값)와 황색도(c값)는 장려품종보다 재래계통에서 높은 경향이었다. To develop good soybean varieties for sprouts. 285 indigenous lines and 16 recommending varieties were evaluated by the sprout and agronomic characteristics. The range of whole length, hypocotyl length, root length, and yield rate of sprouts was 9.5~23.0cm, 5.9~15.1cm, 3.2~9.2cm, and 121~695%, respectively. Yield rate of sprouts was the highest, 409%, in the lines of mixed seed coat color. At the same time, it was reversely proportional to seed weight : the smaller the seed weight, the higher the yield rate as in all other reports. The number of roots was significantly fewer in the lines of the black and the green seed coat color than others. Based on whole length, rate of root length, and yield rate of sprouts, many indigenous lines were evaluated much better than recommending varieties. In the hypocotyl color of sprouts, the brightness was higher in improved variety than indigenous lines but vice versa in redness and yellowness in general.

C_3 및 C_7위치에 치환된 새로운 세파로스포린 化合物의 合成과 抗菌活性(Ⅰ)

황화영,하재천,김영수,고옥현,강형룡 조선대학교 약학연구소 1994 藥學硏究誌 Vol.16 No.1

The synthesis and antimicrobial activity of cephalosporin having (Z)-2-(2-aminothiazol-4-yl)-2-trityloxyiminoacetamido group and 5-(2-chlorophenyl)-4-phenyl-4H-1, 2, 4-triazol-3-thiomethyl group on the C_3 and C_7 position of the cephem ring, respectively are descrived. This compound was tested for antimicrobial activity in vitro against Candida albicans ATCC 10231, Bacillus subtilis ATCC 6633, Micrococcus luteus ATCC 9341, Staphylococcus aureus ATCC 6538P, Mycobacterium phlei IIP-IPH, Escherichia coli KCTC 1039, Escherichia coli ESS, Klebisiella pneumoniae KCTC 1560, Salmonella typhymurium TV-119, Pseudomonas aeruginosa IFO 13130. The antimicrobial activity of synthetic compound was better as compare with cefotaxime and cefazoline against Micrococcus luteus ATCC 9341 & Escherichia coli KCTC ESS.

중학교 가정과 학습내용에 대한 예비중학생과 학부모의 인식

황선화,정영숙 한국 가정과 교육 학회 1995 한국가정과교육학회지 Vol.7 No.2

The purpose of this study was to investigate the recognition degrees of contents in Home Econimics textbook for middle school students among pre-middle school students and their parents. It is for developing better Home Econonmics textbook. Three objectives of this study were: 1) To find the recognition degrees of the fact that Home Economics subject is supposed to utilize for not only girls, but boys students in middle schools in 1996 among pre-middle shcool students and their parents. 2) To find the degrees of necesiity in each field of Home Economics subject among pre-middle school students and their parents. 3) To find the differences in recognition degrees of understandings, attitudes, and skill of Home Economics subject between pre-middle school students and their parents. Questionnaire survey metod was utilized to 1,205 sizth grade students and their parents in Pusan. The results of this study as follows; 1) It was low that the recognition degrees of the fact that Home Economics subject is supposed to utilize for both girls and boys in middle school among both pre-middle school students and their parents. This result implies that it is important to dissenminate the curriculum change in Home Economics practice to the public. 2) It was high that the recognition degrees of necessity in each field of Home Economics subject among pre-middle school students and their parents. Th recognition defree were different according to sociodemographic factors. That is, ① the recognition degrees of students were lower than their parents; ② the recognition degrees of parents who have high education were higher than those who have low education; ③ the recognition degree of an evirionmental field was highest. 3) There were little differences between pre-middle school students and their parents in the recognition degrees of understandings, attitudes, and skills of Home Economics subject: The recognition degrees of girls fathers showed higher scores than boys fathers those of in understandings and skills of Home Economics subject. The recognition degrees of girls fathers showed higher scores than those of girls in attitudes of Home Economics subject.

한국에서 발생한 Dupuytren 질환의 임상적 고찰

황영중,정일화 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.5 No.-

Dupuytren's disease is one of the fibroproliferative disease in hand primarily, but same pathologic process can be seen in the subcutaneous tissue on the dorsum of finger(knuckle pads), plantar surface of feet(plantar fibromatosis) and in the penis(Peyronie's disease). This disease is commom in caucasian, especially in north europian, and epidermiolgy and the result after treatment are well known but in black and oriental race, it is rare and few reports were presented. So epidermiology and process of the disease are not established but just suspected to be similar that of caucasian. Until now, 56 hands of Dupuytren disease in 41 men, including our 5 hands in 4 men, were reported in Korea and we analysed in the repect of sex, age of patient and age of onset, associated illness, involved hand and fingers, involved joint, duration of disease, degree of disease, occupation, operation method result after operation, and complication and then these were compared with foreign reports. The result are as follows; 1) the mean age of onset is 49.7 years old 2) male : female sex ratio is 39:2 3) associated illness are 6 chronic alcoholism, 3 diabetes mellitus, 4 ectopic disease(2 plantar fibromatosis, 2 knuckle pad), 2 pulmonary tuberculosis, 1 heart failure, 1 rhumatoid arthritis, 1 circulatory disturbance of affected hand, 3 trauma history, 1 family history 4) the mean duration of disease is 6.0 years 5) the ratio of hand involved is right : left : both hands=18 : 8 : 15 6) ulnar side fingers are frequently involved(4th; 54.7% 5th; 33.3%) 7) single MP joint contracture is the most frequent in contracted fingers(42.7%) 8) most patient shows contracture(76.8%) and some show contracture without nodule (16.1%) 9) grade of disease by Meyerding classification is 0; 21.4%, Ⅰ; 46.4%, Ⅱ; 17.9%, Ⅲ: 14.3% 10) Dupuytren disease seems more common in manual workers(66.7%) 11) regional fasiectomy was most frequently used as treatment method(76.6%) 12) the results after operation are mostly above good by Honner's classification(above good; 84.1%) 13) complications are 2 extension, 1 hematoma, 1 nerve injury, 1 infection with focal skin necrosis.