한강수계분지내 하천수의 지구화학적 특성

서혜영,김규한 이화여자대학교 환경문제연구소 1997 이화환경연구 Vol.1 No.-

한강 수계 분지 내의 하천수 (지표수)와 서울 지역 지핫의 화학적 특성 규명과 용존 이온종의 기원을 연구하기 위해 1996년 3월-4월 동안 하천수 시료 60개에 대하여, pH, TDS 등과 용존이온의 화학분석을 실시하였다. 남한강과 북한강 하천수의 화학성분은 주로 수계분지 지역에 분포하는 암석에 의해 영향을 받고 있으며, 한강본류의 하천수는 인위적인 오염에 의한 영향이 크게 나타나고 있다. 즉, 남한강은 상류지역에 분포하는 탄산염암, 탄광 및 금속광산 폐수등에서 용출된 Ca(), Mg(), HCO(), SO() 등이 현저하며 북한강은 화강암질암의 풍화 산물인 K(), Na(), Ca()등의 이온종이 특징적이다. 한편 양수리에서 상기 2개 하천이 합류하여 서울 도심을 지나는 한강 본류는 SO(), NO(), PO(), Cl()등 생활하수 오염의 영향이 현저하게 나타나고 있다. 한강 본류로 유입되는 서울 지역의 왕숙천, 탄천, 중랑천, 안양천의 4개의 지천은 NO(), Cl(), PO(), SO(), Mn등 인위적인 오염현상이 크게 나타나고 있다. 한강 하천수의 화학 성분의 군집, 요인 및 회귀 분석 결과, 전체 자료 분산은 오염 인자에 의한 분산이 약 79%, 지질과의 물-암석 반응에 의한 분산이 약 7%이다. 남한강과 북한강의 합류 지점에서의 Cl에 대한 혼합 비율은 약 60:40이다. 1981년 분석 자료와 1996년 자료의 비교에서 암석 풍화에 의한 1차적 용존 성분인 Ca(), Mg(), HCO()등은 변화가 적으나 Na(), NO(), PO(), SO()등 인위적 오염원의 성분은 크게 증가하는 경향이 있다. To investigate geochemical characteristics and the sources of the dissolved ion species in the river water in the Han river drainage basin, samples were collected at 60 sites from the Han river drainage basin. The data for pH, conductivity, TDS(total dissolved solid), temperature, and concentrations of dissolved ions were obtained as follows:(1) The geochemical characteristics of the surface water in the South and North Han river drainage basins are mainly controlled by bed rock geology in the drainager basin and in the main stream of the Han river considerably affected by anthropogenic pollution. The South Han river water samples have high concentration of Ca() (ave. 15.42ppm), Mg()(ave. 2.74 ppm), HCO()(ave 51.9ppm), which evidently indicates that the bed rock geology in a limestone area mainly controls the surface water chemistry. The concentration of SO() is remarkably high(SHr10-2:129.9ppm) because of acid mine drainage from the metal and coal mines in the upper reaches of the South Han river. (2)The South Han river and the North Han river join the Han river in the Yangsuri, Kyounggido and flow through Seoul metropolitan city. The mixing ratio is about 60:40 at the meeting point(sample number HR10). (3)The result of factor analysis suggests that the pollution factor accounts for about 79% and the bed rock type factor accounts for about 7% of the data variation. This means that the geochemical characteristics of the Han river water mainly controlled by anthropogenic pollution in the South Han river and main stream of the Han river drainage basin. (4)The chmical data for four tributaries such as the Wangsukcheon, the Tancheon, the Zungrangcheon, and the Anyangcheon show that the concentration of pollution elements such as NO(), Cl(), PO(), SO() and Mn are high due to municipal waste disposal.

THI 증상군에 영향을 주는 건강관련요인 연구

한창규,황규윤안규동,이병국 순천향대학교 산업의학연구소 1996 순천향산업의학 Vol.2 No.1

To obtain the prevalence rate of health related symptoms of white collar workers who were not exposed to hazardous agent and to investigate the relationship between subjective symptoms & health related variables, 11,266 subjects who were employed for government organization & private educational institute in Seoul, Chungnam, Kyungpook area were studied in order to provide basic information for the health management of white collar workers. All th subjects visited hospitals to take biannual health examination provided Medical Insurance Association for the purpose of screening of several important adult disease. Todai Health Index(THI) questionnaire which is modified questionnaire of CMI made by Todai was selected for the questionnaire form of this study. During hospital visit for health examination, Todai Health Index questionnaire of 88 questions were filled up by the subjects themselves and confirmed by medical doctor. Major findings obtained were as follows: 1. The abnormal rate of screening test was 22.7% in male, 8.5% in female, and 19.2% in total subjects. The prevalence rate of disease was 13.2% in male, 4.9% in female & 10.9% in total subjects. 2. The prevalence rate of all diseases increased by age and th prevalence rate of male subjects were higher than female subjects in all age categories except that of the anemic disease. 3. While highest prevalence rate in all subjects was observed in cardiovascular disease(4.8%), the prevalence rate were 3.4% in liver disease, 2.0% in diabetic disease, 1.9% in pulmonary tuberculosis & chest disease, 0.5% in kidney disease and 0.4% anemic disease. Liver disease was more frequent in age group of below 29 years old and age group of 30-39 years old, but in older age groups(40-49 years old, above 50 years), cardiovascular disease was most frequent. 4. The highest mean score of THI symptom category was mental instability and the lowest one was skin & anus symptoms. The most frequent symptom of THI was "think a lot before action" in nervousness symptom category and mean scores of the female subjects in all symptom category were higher that those of male subjects. 5. In symptoms and signs of recent 3 months, the most frequent symptom and sign was "generalized fatigue" and mean score of it was 1.85. Multiple comparison analysis of health related factors revealed that "illness in health status" was the highest score(23.54) in male and sometimes drink & drunken in alcohol intake was th highest score(26.13) in female. 6. In multiple comparison analysis, health related factors such as health status, health management, diet habit, taste character, vegetable intake, coffee & beverage, alcohol intake were found to be associated with th overall THI symptom category in both sex and age and smoking in male, type of job in female were associated THI symptom category. 7. In stepwise multiple regression analysis of mean score of THI symptom category(dependent variable) and health related factors(independent variables), the variables of health health status, taste character and alcohol were contributed to THI symptom category in order and the highest correlation coefficient(r) was 0.4085 in male and 0.397 in female in health status of mental instability. 8. The significant health factors contribution to THI symptoms score in male subjects were, in multiple regression analysis with THI symptom category with dependent variable and health related factors with independent variables, health status, diet habit, alcohol intake, taste character, final diagnosis, coffe & beverage, type of job, age, smoking, health management, meat intake and in female were health status, type of job, diet habit alcohol intake, coffee & beverage consumption, screening test, age, health management. The most significant contribution factor among health related variables was health status in over all THI symptom category.

재발 또는 불응성 비호즈킨 림프종 환자에서 CDME 구제항암화학요법 후 고용량 항암화학요법 및 자가말초혈액 조혈모세포이식의 효과

김세형,한강원,배상병,김찬규,이남수,이규택,박성규,원종호,홍대식,박희숙 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Background and objectives : The long-term survival in patients with non-Hodgkin's lymphoma (NHL) after conventional dose chemotherapy is about 35% and the rest of the patients tend to have relapse. So, in relapsed or refractory NHL, we compared the outcome of patients undergoing high-dose chemotherapy with autologous peripheral blood stem cell transplantation(APBSCT) with only salvage chemotherapy of cisplatin, dexamethasone, mitoxantrone, and etoposide(CDME). Materials and methods : From June 1993 to December 1999, 25 patients with relapsed or resistant NHL were treated with CDME regimen as salvage chemotherapy. Twelve patients were received four cycles of CDME chemotherapy, and 13 patients were received high-dose chemotherapy with APBSCT following two cycles of CDME chemotherapy. Results : The median follow-up duration was 12.8 months(range:4-68). The overall response rate was 41.7% (complete response rate 25%, partial response rate 16.7%) in 12 patients with CDME only. Thirteen patients who were treated with high-dose chemotherapy with APBSCT achieved 61.5% complete response rate and 15.4% partial response rate, with an overall response rate of 76.9%. The estimated 3-year progression-free survival rate was significantly higher among patients who received high-dose therapy than patients who received CDME only(41.5% vs 20.0%, p<0.05). And, 3-year overall survival rate was significantly higher among patients who received high-dose therapy(51.3% vs 25.0%, p <0.05). Conclusions : In relapsed or refractory NHL, CDME chemotherapy is an effective salvage chemotherapy and allow peripheral blood stem cell collection. Also, high-dose chemotherapy with APBSCT following CDME is superior to CDME salvage chemotherapy only.

승용차용 브레이크 Tube-End의 최적설계에 관한 연구

한규택,박정식 한국공작기계학회 2002 한국공작기계학회 추계학술대회논문집 Vol.2002 No.-

Brake tube is considered one of the most important parts in automobile. The shape of brake tube-end has a great influence on the function of brake, and the quality and productivity of brake tube have relation to die design. The forming process of brake tube-end is performed by hydraulic press forming machine. In this paper, the forming processes of tube-end for automobile is analyzed and designed to make the optimal form of brake tube-end. Also, finite element analysis has been carried out using DEFORM-3D^(™) to predict the optimal shape of brake tube-end and the results obtained showed the optimal length between punch and chuck is 1.0 ~1.2㎜. The shape of tube-end is in good agreement with the finite element simulations and the experimental results.

열린 홀을 가진 2사이클 엔진실린더의 호닝가공시 호닝의 정밀도에 미치는 혼스톤의 영향

한규택,장명진 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.3

Grinding technology in morden industry society is focusing on research and development for grinding stone and machin-ing parts for the purpose of high accuracy and high efficiency of products. But, in order to equip the high technology and high accuracy of micro stone which is one of grinding stone, a continuous effort on R & D is required. In this study, the honing processing work of 2 cycle engine cylinder for motorcycle which has an open hole is carried out so as to investigate the boring and hone stone effects on accuracy of honing. As the experimental result of this study, we could conclude that it is possible to secure good conditions of honing by controlling and keeping appropriate cycle-time in the stage of boring for the prior step of honing,

여항산 일대의 조류분포: 1994년과의 비교연구

한성우,함규황 경남대학교 기초과학연구소 2001 硏究論文集 Vol.15 No.-

본 연구는 경상남도 함안군 여항산 일대에 도래하는 조류들의 군집 생태를 1997년 3월부터 1998년 2월에 걸쳐 조사한 결과 총 11목 28과 65종 4,388개체로 나타났으며, 최우점종은 붉은머리오목눈이 Paradoxornis webbiana(831개체 , 18.94%)였으며, 직박구리 Hypsipetes amaurotis(579개체, 13.20%), 박새 Parus major(353개체, 8.04%), 노랑턱멧새 Emberiza elegans(348개체, 7.93%), 오목눈이 Aegithalos caudatus(334개체, 7.61%) 등의 순으로 나타났으며 나타났다. 지역별 종과 개체수는 A지역 51종 1,368개체, B지역 58종 3,020개체로 B지역에서 높게 나타났으며 , 계절적 분포는 텃새가 24종(37.5%), 여름철새 22종(34.48%), 겨울철새 10종(15.62%), 나그네새 8종(12.5%)으로 텃새가 우점적으로 많이 나타났으며, 1994년의 조사와 달리 겨울철새보다 여름철새가 더 많이 관찰 되었다. 지역별 평균 종다양도와 동등한 보편종 수는 B지역의 평균이 2.95(H')와 19.02(eH')로 높게 나타났으나 지역간의 유의적 차는 없었다(P>0.05). 천연기념물에 해당되는 조류는 새매 Accipiter nisus, 잿빛개구리매 Circus cyaneus, 매 Falco peregrinus, 황조롱이 Falco tinnunculus, 솔부엉이 Ninox scutulata의 5종이었다. Community ecology of birds was investigated from March 1997 to February 1994 in Mt. Y□hang, Haman-gun in Ky□ngsangnam-do. A total of 4,388 birds, 64 species, 28 family and 11 order were recorded during censuses. The dominant species were forllowing the order of Paradoxornis webbiana(18.94%), Hypsipetes amaurotis(13.20%), Parus major(8.04%), Emberiza elegans(7.93%), Aegithalos caudatus(7.61%) The number of species and individuals were A area (51 sp., 1,368 ind.), B area (58 sp. 3,020 ind.) and this were most abundant in B area. Status on the distribution of birds were resident 24 species (37.5%), summer visitor 22 species (34.48%) winter visitor 10 species (15.62%) and passage migrant 8 species (12.5%). Means of species diversity (H') and number of equally common species (eH') were most high in B area and there were difference significant no between two areas Similarity among three mountains Mt . Y□hang; Mt. Juheul (0.47), Mt. Wolak (0.38), Mt. Choryeong (0.45), Mt. Chilgab (0.47), Mt. Yeonhwa (0.65)] in Korea were most high between Mt. Y□hang and Mt. Yeonhwa. The natural monument birds were five species: Accipiter nisus, Circus cyaneus, Falco peregrinus, Falco tinnunculus and Ninox scutulata.

대전시 노은 도매시장 채소류의 농약 잔류 실태 및 식이섭취량 추정

한국탁,이규승,이은경,이용재,고광용,원동준,이정원,권순덕 한국환경농학회 2003 한국환경농학회지 Vol.22 No.3

대전시 노은 도매시장에서 채취한 6종의 채소류 중 농약잔류량을 조사한 후 이에 대한 위해성 평가를 실시하였다. 전체 100건의 분석시료 중 농약이 검출된 시료의 비율은 46.0%이었고, 잔류허용기준 초과비율은 6.0% 이었다. 검출비율이 높은 시료는 상추(85.0%), 깻잎(80.0%), 오이(60.0%) 순이었고, 상추 3건, 깻잎 3건이 허용기준을 초과하였다. 살균제는 dicar-boximide계, 유기염소계, azole계 농약, 살충제는 유기인계, 합성 pyrethroid계 농약이 많이 검출되었다. 검출빈도가 높은 성분은 procymidone, chlorpyrifos, chlorothalonil, cypermethrin, EPN의 순이었다. 위해성을 평가하기 위해서 각 농작물에 대한 농약의 추정 섭취량과 ADI를 비교한 결과, 허용기준을 초과한 깻잎의 bitertanol, triflumizole, iprobenphos가 다른 성분에 비하여 높은 비율을 보였다. 그러나 각 농산물의 식이섭취량이 적어 ADI에 대한 추정섭취량의 비율이 0.46%이하로 나타나 그 영향이 매우 낮은 것으로 판단되었다. Pesticide residues in some vegetables collected at Noeun wholesale market in Daejeon were surveyed and assessed their risk In 100 samples, the detection rate of pesticide was 46.0% and the rate exceed MRL was 6.0%. Commodities showing high detection rate were lettuce(85.0%), perilla leaf(80.0%) and cucumber(60.0%). Dicarboximide, organochlorine, and azole fungicides and organophosphorus and pyrethroid insecticides were detected. Detection frequency of pesticide was in the order of procymidone, chlorpyrifos, chlerothalonil, cypermethrin and EPN. When the estimated intake amount of the pesticides were compared with ADI to assess their risk, bitertanol, triflumizole and iprobenphos in perilla leaf were higher rate than the other vegetables. However the total amounts of intake of pesticides were estimated to less than 0.46% of ADI.

韓國의 地域經濟 政策手段에 관한 理論分析 硏究

韓圭泳 군산대학교 1983 群山水産專門大學 硏究報告 Vol.17 No.2

During the period from 1960s to 1970, the Korea's economy has recorded a rapied growth of average 7.8% per year, but such economic rapid growth disclosed economical interval appearence among regional areas. For the coming 1980s, economy policy will necessary a equilibrated industrialization strategy between regious to promote the export, getting out of the industrial policy and theory of disequlibrium growth that based on import substitute industry before in the direction to reduce the interval between regions. Through these studies, tried to gaind the basis theory of regional economy development and the political strategy theory, also we have concluded as follows as possible means to improve the regional economic policy instrument. 1.The equilibrium development of regional economy should be linking development between economic growth pole of advenced region and underdeveloped region, and it not only go through infrastructure investment by mutual adjustment between the measures and district, but also the enlargement of capital, labour power, the commodity market. 2.It should be enlarged the employed opportunity on the other except controlled area, and relatively the developed region, that is, the center of economic variation should be the core development or strategy for regional economy development. 3.Not only the growth pole formation should be used as a measures to promote the structural fluctuation at a rural community, but also industrial complex enlargement of other region should be made as a measure improvement policy industrial structure in the region.

鮮魚의 流通構造 分析과 그 改善方向

韓圭泳 군산대학교 1984 群山水産專門大學 硏究報告 Vol.18 No.2

The whole distribution structure of marine products has been to have many unreasonable points. To find out them, it has an analysis of operation realities, sending out goods types and distribution channel in our country fisheries market place. As a result, the point at issue has been pointed the complexities of distribution phase, multiplicity distribution and difficulties of freshness maintenance. Through these studies, we have concluded as follows as possible means to improve the functions of distribution structure of fresh fish. 1. To safeguard a manufacture, the authorities concerned marine should be promote the price up-holding projects to the extent of guarantee a manufactures year-gross-average production cost, 2. In the system of sale, a commission agency, illegal intermediate dealer, should be foster and develop an agent of fisheries co-operatives unit with qualified condition and capabilities. 3. It ought to be practice the network send out goods for price protection of both producer and consummer after mordernization of consignment shop facilities, and blocking private purchase and sale of fresh fish. 4. Through distribution phase of shortage, there are to improve payment system of duplication fee to unification, also to narrow the distribution margin. 5. The low-temperature distribution facilities should be enlargement for maintenance of fresh-temperature. 6. Also there should be cut down the expenses of package, landing, baded and unloaded, transporta-tion, storage with rationality of marine physical distribution system.

水産物 流通構造의 問題占과 改善方案에 관한 硏究 : 鮮魚 流通構造를 中心으로

韓圭泳 군산대학교 1988 群山水産專門大學 硏究報告 Vol.22 No.2

The whole distribution structure of marine products has had many unreasonable points. To fine out them, This study has an analysis of operation realities, sending out goods types and distribution channel in our country fisheries market place. As a result, The points at issue have been pointed the complexities of distribution phase, multiplicity distribution and difficulties of freshness maintenance. Through this study, we have concluded as follows as possible means to improve the functions of distribution structure of fresh fish. 1. To safeguard a manufacture, the authorities concerned marine should promote the price upholding projects to the extent of guarantee a manufactures year-gross-average production cost. 2. In the system of sale, a commission agency, illegal intermediate dealer, should foster and develop an agent of fisheries co-operatives unit with qualified condition and capabilities. 3. It ought to practices the network send out goods for price protection of both producer and consummer after mordernization of consignment shop facilities, and blocking privage purchase and sale of fresh fish. 4. Through distribution phase of shortage, there are to improve payment system of duplication fee to unification, also to narrow the distribution margin. 5. The low-temperature distribution facilities should be enlargement for maintenance of freshtemperature. 6. Also there should be cut down the expenses of package, landing, baled and unloaded, transportation, storage with rationality of marine physical distribution system.