부산·울산·경남지역 직업병 감시체계

김정일,김병권,김정원,채창호,이철호,강동묵,김지홍,김진하,김영욱,이영하,이지호,김정호,윤형렬,유철인,정백근,장태원,김운규,윤동영,강진욱,김종은,안진홍,이동준,장준호,이광영,송혜란,최영희,이용환,조병만,최홍렬,고상백,김은아,이유진,홍영습,정갑열,김정만,김준연 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.1

Objective: Occupational medicine specialists in the Busan, Ulsan and Kyung-Nam areas established an area-based occupational disease surveillance system and used this system to collected case information for the purpose of preventing occupational diseases Methods: l l hospital participated in this system. The authors selected five main diseases, which were hand-arm vibration syndrome (HAVS), work-related musculoskeletal disorder (WRMSD), occupational asthma, occupational skin disease and occupational and occupational lung cancer and established their case definitions. All cases were reported on the web, and real time analysis was conducted. Results: Between April 2001 and April 2003, 192 cases of HAVS, 118 cases of WRMSD, 33 cases of occupational asthma, 17 cases of occupational skin disease and 17 cases of occupational lung cancer (for a total of 377 cases of these five main diseases) were reported. most of the HAVS cases came from shipbuilding, and 172 of them (92.7%) were associated with grinding. Of the four main types of WRMSD, carpal tunnel syndrome (CTS) was the most prevalent with 46 cases and shipbuilding was also the main industry involved (83.9%). The ergonomic risk factors involved mainly associated with the hand. In 19 (57.6%) and 4 (12.1%) cases of occupational asthma, the agents involved. The causative agents of occupational lung cancer included Cr, welding fume, PAH, Ni, etc. 10(58.8%) of the cases were diagnosed as squamous cell carcinoma and 5(29.4%) as adenoma. Conclusion: This result showed that an area-based occupational disease surveillance system might provide an effective method of evaluating the prevalence of such diseases, however the Busan, Ulsan and Kyung-Nam provinces are too large to be treated as individual areas. Therefore, the authors suggest that each province should establish its own surveillance system.

난포기 및 황체기에 있어서 돼지 난관 협부 평활근의 neurotransmitter들의 수축효과에 대한 estradiol-17β및 progesterone의 영향

이민기,노규진,심철수,남윤정,김주현,최상용 慶尙大學校 1991 論文集 Vol.30 No.2

The effects of estradiol-17β or progesterone on the contractility of neurotransmitters on pig oviductal isthmic smooth muscle were investigated. The motility of the isolated smooth muscle was recorded by using physiological recording system. The results were summarized as follows : 1. The contractility induced by histamine or prostaglandin F2α was depressed by the pretreatment of estradiol-17β but was not by the preteatment of progesterone in follicular or luteal stage. 2. The contractility induced by acetylcholine was depressed un follicular stage but excited in luteal stage by the pretreatment of estradiol-17β or progesterone. 3. The contractility induced by norepinephrine was depressed by the pretreatment of progesterone in follicular stage but was excited by the pretreatment estradiol-17β in luteal stage.

중환자실에 입원한 세균성 폐렴환자에서 반정량적 procalcitonin 검사의 유용성

이승화,김철홍,김지연,박선욱,김용욱,현인규,우흥정,김현수 대한감염학회 2009 감염과 화학요법 Vol.41 No.6

Background : In pulmonary infection, serum procalcitonin levels increase rapidly, probably in response to sepsis-related cytokine release from neuroendocrine cells of bronchial epithelium and inflammatory cells. We applied procalcitonin assay in critically ill patients with bacterial pneumonia. Materials and Methods : Patients admitted to the intensive care unit (ICU) and show diffuse infiltrations in their chest X-ray were included. Quantitative bronchoalveolar lavage (BAL) culture (≥10⁴ CFU/mL) was performed in all cases on the 5^(th) day of ICU admission. We excluded patients with structural lung disease, non-infectious lung infiltrations, and atypical infections such as Mycobacterium tuberculosis, Pneumocystis jiroveci, and viruses. Serum procalcitonin levels were measured semi-quantitatively by using PCT-Q kit. Results : A total of 28 adult patients (M:F=23:5) were included: 11 (39.3%) medically-ill patients, 7 (25%) surgically-ill patients, and 10 (35.7%) burn patients. Serum procalcitonin level was <0.5 ng/mL in half of the cases (14/28) and ≥0.5 ng/mL in the remaining half of the cases. Compared to those with serum procalcitonin level of <0.5 ng/mL, patients with serum procalcitonin level of ≥0.5 ng/mL had more frequent mechanical ventilation, higher CRP/APACHE II scores/number of organ failure (P<0.05), and showed increased tendency for death (P=0.052). Positive bacterial BAL cultures were noted in 17 cases (60.7%). Of these, 7 cases (41.2%) showed serum procalcitonin level ≥0.5 ng/mL. Conclusions : High serum procalcitonin level seems to be closely associated with the severity and poor prognosis in critically ill patients with bacterial pneumonia. However, pneumonia could not be excluded with low level of procalcitonin among ICU patients.

施肥量 Yacon의 生育 및 收量에 미치는 效果

李喆浩,崔周鎬,송인규 진주산업대학교 1997 論文集 Vol.36 No.-

This experiment was conducted to investigate the effect of the amount of fertilizer on the growth and yield characters of yacon(Polymnia sonchifolia POEPP) and to establish the cultivation method. An introduced variety of yacon was used. Seeding dates were from April 5 to April 7, and seedlings were transplanted on May 25. Planting density was 80㎝(width)×45㎝(distance). The minimal amounts of fertilizers of N-P-K were 3.5-5.0-3.5㎏/10a. And twice, three times and four times as much as the minimal amounts were applicated. The results were summarized as follows. 1. As the amounts of fertilizer were increased, plant height, leaf width, no. of leavesm no. of nodes, stem diameter and fresh weight of top part increased but leaf length was not different among treatments. 2. Tuber yield was highest in the 10.5-15.0-10.5㎏/10a treatment, whose total yield increased because of the heavy amount of fertilizer, and yield of commercial goods was highest in 7.0-10.0-7.0㎏/10a treatment(36.9%). 3. Plant height(r=0.973^**), leaf width(r=0.968^**), no. of leaves(r=0.994^**), and no. of nodes(r=0.949^**) had higher positive correlation with tuber yield, respectively.

산소의 첨가가 박막 백금측온저항체의 온도저항계수에 미치는 영향

설철규,김영진,장경훈,이건환,이정희 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

A thin film Pt-RTD(resistance temperature device) was fabricated by using DC magnetron sputtering and laser patterning. A study was fulfilled to adjust the TCR(temperature coefficient of resistance) to 3850 ppm/℃ which is IEC751 standard and the influence of oxygen addition(0 ~ 20 %) on TCR was measured. The resistance of Pt-RTD was set to 1000 Q at 0 ℃ using laser patterning and trimming. The analyses of XRD and AES were used to characterise the platinum thin film. The TCR of Pt-RTD was measured by a high precision oil bath. When the addition of oxygen flow rate was 1 %, TCR was 3850 ppm/℃.

요통에 對한 자석요대(마그네밴드)의 治療效果

林準圭,李哲浣 大田大學校 1984 論文集 Vol.3 No.1

效率的인 環境敎育을 위한 敎授·學習方法의 改善에 關限 硏究 : 中學校를 中心으로 in Middle School

김현철,이택순,문병현,서규태 7개 국립대학교 환경연구 논문집 공동발행 위원회 2002 환경연구논문집 Vol.2 No.1

This paper focuses on the development of desirable curriculum for environmental education in middel school. From the questionnaire investigation for teachers and students of 10 middle schools in Gyeongnam-do, it is desirable that the eduaction program should be practical and experiential rather than the current cramming lecture. In addition, environmental education program should be introduced as a compulsory subject through continuous and systematic curriculum. A training program is necessary for specialist group teaching environmental issues too. Institution of regional environmental education center is an appropriate meausre to develop such program. It will be helpful for open communication between school and social community. National support is necessarily required to promote research activity and to develop innovative teaching materials in such center. Consequently the national environmental network will be constructed and effective environmental education will be implemented.

레이저가공기를 이용한 SAPH400의 절단특성에 관한 연구

조규재,박종남,이승철 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.1

본 연구의 목적은 자동차 구조용 열간 압연강(SAPH400)의 몇 가지에 대한 최적의 절단 가공 조건을 구하기 위한 실험이다. 현재 대부분의 절단가공은 기계적인 방법이 활용되고 있으며,절단속도와 정밀도,금형제작,공구수명 등의 문제점이 많아 CO₂레이저 가공기를 이용하여 이를 해결하고자 하였다. 실험은 유입가스의 압력,절단속도 및 출력의 변화를 주었을 경우 절단면의 조도와 폭에 어떤 영향을 주는가를 연구 · 분석하였다. 실험결과 출력,절단속도 및 절단가스압력을 변화시켰을 때 출력은 1500W,절단속도는 1100mm/min. 절단 가스압력은 0.5kgf/㎠마 일 때 가장 양호한 표면 거칠기 값 18.06㎛을 나타냈다. This study aims at making experiments to fine the optimum cutting processing conditions of some sheets in common use of Steel Automobile Press Hot 400(SAPH400). Current mechanical methods for cutting processing of most have several problems in relation to cutting speed, precision, manufacture of metal mold and life of tools, which we tried to solve by using the CO₂ Laser Machining. We studied and analyzed what effects on the roughness and width of a section changes in the pressure of blowing gas, cutting speed and power according to the quality and thickness of the material might exert. The results from this experimental study are summarized as follows, when power, cutting speed and gas pressure were changed, the finest value of surface roughness, 18.06㎛ was attained at power of 1500W, cutting speed of 1100mm/min and gas pressure of 0.5kgf/㎠.

수직형 머시닝센타 이송시 스틱-슬립에 관한 연구

최경현,조규재,박종남,이승철 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.2

볼나사 미끄럼 시스템에서 고속과 고정밀도를 이루는데 중대한 문제들은 마찰과 각 구성 요소들 사이에서의 마찰과 축 방향의 강성이 감소하여 나타난다 특히, 안내면에서의 마찰은 이송정밀도를 떨어뜨리는 좋지 않은 영향을 준다. 더욱이 스틱-슬립현상과 같은 특수한 마찰 형태는 미끄럼 시스템의 저 강성에서 일어난다. 스틱-슬립은 정밀도에 나쁜 영향을 가진다. 본 논문에서는 미끄럼 시스템의 정밀도에 있어서 스틱-슬립 마찰에 의한 운동오차에 따른 변화들을 고찰하여 이송정밀도의 해결 방안을 제시하려 하였다. In the ball screw slide system the major problems in accomplishing the high-speed and high-precision are the friction between elements and the decrease of axial stiffness. Especially the friction on the guide have a bad effect on the precision of sliding. Furthermore stick-slip occur when the low stiffness of slide system. The stick-slip have a bad influence on the precision. In this research, the affection of stick-slip friction to the precision of the slide system is studied and the possible solution of the precision is proposed.

상부 조기 위암 환자의 복강경하 상부 위절제술 3례 경험

조규석,김형철,박경규,이문수,송옥평,임철완,신웅진,주종우,유기원 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Background : The reported incidence of early gastric cancer located in the upper portion of the stomach has been increasing with the recent advances in its diagnosis and screening. Recently, we have successfully performed laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without pyloroplasty on three patients with early gastric carcinoma localized to the upper third of the stomach. We describe our modification of this procedure in this report. Method : After creating an surgical pneumoperitoneum, the stomach was mobilized using laparoscopic coagulating shears. Upper half of the greater curvature and three-quarters of the lesser curvature were then dissected along with regoinal D2 lymphadenectomy. This was followed by a 5 cm, longitudinal mini-laparotomy in the upper abdomen, and the construction of the exteriorized stomach with a gastric tube measuring 20 cm long and 4 cm wide. Reconstruction with an esophagogastrostomy was performed using a circular stapler. Result : No post-operative morbidity or mortality was observed in this small series of patients. The average operative time was 250 minutes (range 220-300 minutes), and the average blood loss was 150 ml (range 90-180 ml). The mean number of lymph nodes harvested during these laparoscopic proximal gastrectomies was 24 nodes (range 22-25 lymph nodes). The average postoperative hospital stays was 7.5 days (range 7-8 days). Conclusion : Our technique of laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without phloroplasty offers a minimally invasive technique with the potential of impoving the post-operative quality of life patients with an early-stage proximal gastric cancer.