CCFL 전극용 몰리브덴 핀(Molybdenum Pin) 제조

이정익,이응석 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

The final research paper is developed a manufacturing technology of molybdenum pin for cold cathode fluorescent lamp electrode of liquid crystal display back light unit. The molybdenum pin is hard to manufacture a specimen precisely and inspect all products. So, it needs to study not only product manufacturing but whole product line. For doing precious things, it needs to develop a new technology as follows; the surface treatment, the development of line treatment, the wire batch and the development of shearing technology, the development of jig and fixture, the development of surface treatment technology of molybdenum pin, the development of technology for all inspection.

돼지 우리 깔집용 왕겨에서의 Ochratoxin A 검출

이문한,박진봉,박응복,이영재,신광순,박종명,남궁선,조준형,박근식,권택석,이재구 한국수의공중보건학회 1992 예방수의학회지 Vol.16 No.1

마산 수출자유지역공단 근로자들에 대한 사회의학적 조사연구

이영호,정석주,이수일,김응남,맹광호 가톨릭대학산업의학센타 산업의학연구소 1977 韓國의 産業醫學 Vol.16 No.3

Followings are major findings obtained from a study on the socio-medical studus of the manu-facturing workers in the Masan Free Export Zone. This study was planned to find out socio-medical conditions of the workers which seemed to be essential to the better management of the health of the workers and the working environments. For this study, 6978 workers who are equivalent to 26.9% of total workers in Masan Free Export Zone as of the end of 1976 were sampled and they were asked to answer to the pretested questionnaire. 1) General characteristics; (1) 83.9% of sampled workers were female. (2) 84.9% of workers were less than 25 years of age and female workers who entered in this age group were 93.6%. (3) 91.9% of workers had more than junior high school education and those who finished only junior high school occupied the majority with the proportion of 67.7%. (4) 897.1% of workers were un-married and the proportion for the female was 93.2% (5) Majority (89.6%) were from Yongnam area and 5.2% of workers were from Honam area. (6) 49.1% of workers were living separately from their families and 76.9% of them were self-cooking. 2) Working conditions and working history; (1) 78.1% of workers were receiving from 20,000 won 40,000won as their monthly salaries and those who were receiving from 40,000 won to 60,000 won were the next (12.5%). (2) 34.4% of workers had been working in the present plant for from one to three years and those who had been working for less than one year were 31.9%. (3) Most of workers (91.2%) were working 8 hours a day but 25.3% of precision optical instruments manufacturing workers were working about 10 hours a day. (4) Only 6.2% of workers ever changed their working places during the past one year. 89.0% of them changed once and 9.0%, twice. Male workers changed their working places more often (8.7%) than female workers (5.7%). 3) Present and past history of illness; (1) 6.7% of workers had the sick among their family members and cardiovascular diseases were most common (47.8%) (2) Those who had experiences of sickness lasted more than one week were 7.1% and those who had had operations were 3.3%. (3) 42.0% of workers were complainning at least one physical symptom. Those who were complainning "tingling pain on eye ball" were the most (20.5%), and headache, and dizziness were both the next (16.3%). 4) Smoking, drinking habits and drug dependency; (1) Among all workers, 11.7% (male, 69.5%; female, 0.4%) were smoking and 13.1%(male, 71.9%; female, 2.3%) were drinking alchole. Those who were using drug customarily were only 2.3% and the drugs they were using were aspirin (35.0%), antibiotics (12.5%) and others. 5) Present physical conditions found at the periodic physical examinations; (1) Mean height of male workers was 168.3cm and that of female workers was 158.1cm. Mean body weight of male workers was 60.7kg and that of female workers was 51.3kg. (2) Those who had anormal vision were 10.1% and the frequency of self-awared hearing loss was 4.5%.If the visual power of one or both eyes was less than 0.6, we considered this as and abnormal vision. (3) Those who were informed by the physician that they had hypertension were 8.4% and those whe were informed that they had tuberculosis lesion on the chest were only 0.4%.

전자빔 필라멘트의 연구 및 개발

이정익,이응석 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-

Thin film manufacturing process is placed on the main technology of semiconductor manufacturing process, high resolution technology of hard and laser disk , plate disc player manufacturing process of LCD/PDP. Furthermore, this process is used as general technology. in deposition and electric wave cover of mobile phone cover, reflecting plate of lamps, cosmetic vessel, optics surface coating of camera lens and coating film producing of several goods. In this research, the main purpose is developing in electric heat resistive using as basic material in semiconductor manufacturing process and many industrial processes. The developing process isas follows. Electron beam is emitted by heating of tungsten filament in high vacuum environment. Then electrons are accelerated in high voltage. The electrons are collided into opposite material . The opposite material is coating by producing heat. The first year of research is for mechanical property of filament wire per diameter and computer aided engineering for developing high efficiency electric heat resistive. The second year of research is focused on development of automatic inspection line for mass production. If electric heat resistive is developed through this project the product could be having a product power because of high efficiency , high cost effective and comparing to foreign goods.

상수관로의 노후도 영향인자 및 가중치 산정에 관한 연구

김응석,김중훈,이현동 대한상하수도학회 2002 상하수도학회지 Vol.16 No.6

The purpose of this study is to estimate deterioration factors and weighting factors in pipe network which each local self-governments takes rehabilitation and replacement work present time. Deterioration factors in pipe network are able to effected of specific province or location related with water supply. Most of water supply pipes are laid under the ground, it is hard to quantify deterioration degree of water system. Moreover, the timing and economic limitation and insufficient information on the spot survey gives a difficulty to look over how old water supply system is. Accordingly, this study collects and analyses five data as the laying environment, visual analysis, analysis of soil contents, analysis of pipe material, and questionary survey data in water pipe of A city. The deterioration factor estimates 14 factors with excavation and experimental analysis and 9 factors without excavation and experimental analysis. Also, the weighting factors are estimated by using the multiple linear regressions and the linear programming. The estimated deterioration factor and weighting results are compared the analysis result of visual, pipe material, and soil contents with the Probabilistic Neural Network Model. Consequently, the model results of estimated 9 factors in this study and 14 factors show the 1-2% difference. The result show that the proposed model could be used to decide the deterioration condition of pipe line with real excavation and experimental analysis.

빛의 건축적도구를 적용한 전통공예전시관 계획 : 라 뚜레뜨 수도원에서 나타난 자연광 도입방식을 근거로 Based on the method of natural light in the Le Convent de La tourtte

안응준,이은석 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

Light is a carrier to show the shape of object and space. But in a civilized community. We are using more many "artificial light" rather than "natural light" and ignoring variety and beauty of natural light. And mostly spaces are used in favor of function and concept. The using light of spaces is treated as an aesthetic value beyond a practical role. Because it plays only roles of lighting apparatus and heating. The aim of this study is to suggest an way of using light in the field of architecture to get the aesthetic value of light in places. Recently lots of traditional crafts museums which is designed of closed space has forced to put people off attraction of the crafts. So to solve this problem we try and plan to design exhibition of traditional crafts that is adopted a concept of light to use for open space. As the result of this study, the methods of using light as the architectural tool are concentrating, penetrating, filtering and reflecting. Therefore working with the idea, we are able to make special equipment to meet conditions of traditional crafts exhibition and ultimately obtain an artistic value of light in exhibition spaces.

계층분석기법을 이용한 하수관거 결합항목별 가중치 산정

김응석,이정호,김중훈 대한상하수도학회 2003 상하수도학회지 Vol.17 No.2

In domestic sewer rehabilitation works, the numerical weighting based on number of sewer defect is used to determine the propriety of rehabilitation order. In case of the decision standard in each defect contents of inside and outside of the country, the weight for determining sewer rehabilitation order is composed of several distribution of marks, not considering the weight in each sewer defects. In this study, the fifteen defect contents are determined suitable for domestic situation based on the sewer defect data of inside and outside of the country. Also, we select persons in charge of the business to calculate the detail weight and pose questions about important level of each sewer defect contents. The results of using Delphi method which is a question survey method apply the AHP and calculate the weight in each sewer defect. The appropriate marks matrix of sixteen sewer defects is made for laying precise decision standard of sewer condition through the result of analysis. The marks matrix of sixteen sewer defects can solve the complicated decision making problems of sewer rehabilitation works.

벽면부착방식 PV시스템의 建築物 適用可能性에 關한 硏究

김재원,오민석,이성주,최인창,이응직,김회서 대한건축학회 2003 대한건축학회논문집 Vol.19 No.6

Building integrated photovoltaic(BiPV)systems can from a cohesive design, construction, and energy solution for the built environment. The benefits of building integration are well documented and are gaining significant public recognition and government support. PV cells, however, convert only a small portion of the incoming isolation in to electricity. The rest is either reflected or lost in the form of sensible heat and light. In order to judge of the Integration capability to the BIPV system, energy efficiency, capacity and integration capability is studied by considering the production quantity of electric power and U-value of PV system.

치오포스포티로신을 함유한 펩티드 유도체의 중간체 합성

김은경,최희성,이응석 영남대학교 약품개발연구소 1998 영남대학교 약품개발연구소 연구업적집 Vol.8 No.-

N-(tert-Butoxycarbonyl)-O-(dicyanoethylthiophosphono)-L-tyrosine(7), the key intermediate for the synthesis of thiophosphotyrosine-containing peptide derivatives, was prepared. For the phosphorylation, we used t-Boc-tyrosine and phosphoramidite in the presence of 1H-tetrazol. For the protection of thiophosphate moiety, cyanoethyl protecting group was used. Thiophosphotyrosine-containing peptides could be used as tools fur the elucidation of mechanism of signal transduction pathway and also prepared as PTK inhibitors. PTPase inhibitors and cytosolic protein binding blockers. It may be contributed for the development of potential anticancer agents.

한약에 의해 유발된 급성 간질성 신염 2례

김덕윤,박동건,김응석,강영모,양창헌,이정호,이동철,이영현,김정란 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

간질성 신염은 신장의 간질을 선택적으로 침범하는 염증성 질환으로 여러가지 원인에 의해 유발되며, 이 중 약물에 의한 경우는 각종 항생제, 비스테로이드성 진통제, 항경련제, 이뇨제, 면역억제제등에 의한 증례들이 보고되고 있다. 현재 각종 질환-특히 만성질환-의 치료에서 한약이 차지하는 비중이 적지 않으나, 그 각각의 성분들이 유발할 수 있는 부작용들에 대한 연구는 거의 없는 실정이다. 저자들은 관절염 치료를 위해 중국산 한약을 복용한 후 복통, 피로감 및 육안적 혈뇨를 주소로 내원한 두 환자에서, 단백뇨와 신기능 장애를 보여 시행한 신조직 생검상 급성 간질성 신염에 합당한 병리학적 소견을 보이고, 한약 복용 중지 후 급속한 회복을 보여, 한약에 의해 유발된 것으로 사료되는 급성 간질성 신염 2예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Acute interstitial nephritis is a disease characterized by renal interstitial inflammatory cell infiltration and acute renal functional deterioration. This is caused mainly by antibiotics, NSAID and diuretics such as thiazide, but cases induced by herb medication are rare. We experienced two cases of acute interstitial nephritis after treatment with herb medication. One 71-year-old female patient and the other 60-year-old female were admitted to the hospital because of general weakness and gross hematuria. Microscopic hematuria, pyuria, and proteinuria were presented. After definitive diagnosis with a renal biopsy, we noted rapid recovery of renal function by drug withdrawal and steroid therapy. We report these cases with a review of the referenced literatures. Key Words : Herb medication, Acute Interstitial nephritis.