持續的 農業體系 分析

金東燮,金大熙 公州大學校 地域開發硏究所 1995 地域開發硏究論叢 Vol.3 No.1

Summary The interest of sustainable agricultural system (organic agricultural system in Korea) is getting popular because of serious environmental pollution. This paper was designed with the intention of improving the understanding levels of sustainable agricultural system by comparing the characteristics of sustainable agricultural system with chemical agricultural system. The main point of sustainable agricultural system is that current agricultural system adapts to an ecosystem for nature conservation. This it would be completed with changing of attitudes and values of agriculture and with much interest and study of sutainable agricultural system. The interest of sustainable agricultural system (organic agricultural system in Korea) is getting popular because of serious environmental pollution. This paper was designed with the intention of improving the understanding levels of sustainable agricultural system by comparing the characteristics of sustainable agricultural system with chemical agricultural system. The main point of sustainable agricultural system is that current agricultural system adapts to an ecosystem for nature conservation. Thus it would be completed with changing of attitudes and values of agriculture and with much interest and study of sustainable agricultural system.

초저온 냉기를 이용한 한냉치료후 동통유발점압통역치의 변화

홍대종,최기섭,박시복,김영호 大韓再活醫學會 1999 Annals of Rehabilitation Medicine Vol.23 No.1

大邱廣域市議會活動에 대한 住民의 評價와 議政課題

김연기,김대질,송건섭 大邱大學校 社會科學硏究所 1998 社會科學硏究 Vol.5 No.1

제2기 지방의회가 종결되었고, 제3기 지방의회가 시작되었다. 지나간 의회활동에 대한 수많은 평가가 이루어졌지만, 그러한 평가논문 대부분은 의정활동실적만 가지고 논의했다. 그러나 이 연구는 한 걸음 더 나아가 의회활동에 대한 주민평가를 동시에 실시해 의회실적과 주민 평가가 어떻게 나타나는지를 실증적으로 분석했다 분석결과, 대구시의회와 주민은 의회활동에 대하여 상이한 결론을 내리고 있다. 의회는 실적만 보더라도 남부럽지 않게 활동을 한 것으로 자신하지만 주민의 평가는 그렇지 못하다. 의회에 대한 관심이 낮고, 그 실적에 대해서도 만족하지 않고 있다는 점이다. 이 논문은 왜 이러한 상이한 결과가 나타났는지 그 의문을 좀더 구체적으로 규명하고 앞으로 의정과제를 제시하고자 하였다.

광섬유를 이용한 고감도 압력센서의 개발

김창원,권대혁,김진섭,이정희,손병기 경북대학교 센서기술연구소 1995 연차보고서 Vol.1995 No.-

KOH 수용액을 이용하여 실리콘 식각공정기술을 확립하였으며, 이를 이용하여 실리콘 기판 위에 스트레스 균형이 이루어진 150 ㎚-Si_3N_4/300 ㎚-SiO_2/150 ㎚-Si_3N_4 두께를 가지는 구조의 평탄한 3층 유전체 멤브레인을 제작하였다. 본 실험에서 사용되는 파장인 1.3 ㎛ 근방에서 다이아프레임의 광투과도는 약 50 %로 광반사막으로 사용이 불가능하였다. 따라서, 다이아프레임 뒷면에 약 1000 Å의 금을 증착하여 N/O/N/Au박막의 광투과도를 수 %정도로 감소시킴으로써, 센서의 광반사막으로 사용할 수 있었다. source fiber를 단일모드로 했을 때 다이아프레임의 크기에 따라 감도는 각각 0.52㎻/torr(3×3 ㎟), 0.65 ㎻/torr(4×4 ㎟), 0.77 ㎻/torr(5×5 ㎟)였다. 광손실을 최소화하기 위해 광전송용 다모드 광섬유를 사용하였을 때는, 2×2 ㎟의 다이아프레임의 크기에 대해 0∼800 torr의 넓은 측정범위에서 거의 선형적인 압력특성을 나타내었다. Using KOH solution, silicon etching technology has been established and stress-balanced flat 600 ㎚ thick triple dielectric membrane(150 ㎚-Si_3N_4/300 ㎚-SiO_2/150 ㎚-Si_3N_4) on silicon substrate has been fabricated. At the wavelength of the sensor light source near 1.3 ㎛, the optical transmittance of the diaphragm was about 50 %, it was impossible to be used as a reflecting film. To decrease to a few percents, the back-side of the diaphragm was deposited 1,000 Å thick gold layer, which is sufficient enough to be used as a light reflection layer of the sensor. When was used 8/126 ㎛ single-mode fiber, the respective sensitivities for diaphragm size were 0.52 ㎻/torr(3×3 ㎟), 0.65 ㎻/torr(4×4 ㎟), 0.77 ㎻/torr(5×5 ㎟). When was used 62/126 ㎛ multi-mode fiber for the light transmission to minimize optical loss, the pressure characteristics was showed almost linearly curve in a wide pressure range, 0 torr∼800 torr, for the 2×2 ㎟ diaphragm in dimensions.

심근침범을 동반한 Becker형 근이영양증 환자에서 확인한 Dystrophin 유전자 Exon결실

김광일,오병희,이무용,채인호,신수,박성섭,김효수,손대원,이명묵,박영배,최윤식,이영우 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.5

Cefotaxime과 Furosemide의 賢排泄 및 血漿蛋白 結合에 미치는 影響

鄭址昌,金載學,韓大燮,高啓昌 慶熙大學校 1984 論文集 Vol.13 No.-

The cephalosporins are eliminated by both glomerular filtration and tubular excretion. Chronic administration of cephalosporins may cause renal tubular necrosis. Cefotaxime is a new semisynthetic cephalosporin antibiotic with an unusually broad antibacterial spectrum. Therefore, to determine whether any variations at plasma protein binding with furosemide by cefotaxime were responsible for its diuretic action of urine volume and electrolytes in rabbits, author studies effects on drug-interaction of cefotaxime and furosemide. The following results were obtained. 1. The group, administrated simultaneously furosemide and cefotaxime, was significantly increased compared with furosemide alone group on the urine volume, urinary electrolytes, because markedly increased the inhibition of Na^+ and Cl^- reabsorption in the renal tubule, and glomerular filtration rate without any differences. 2. Serum concentration of cefotaxime in rabbits was significanly elevated by the combination with furosemide, and markedly inhibited the elimination levels of cefotaxime in urine of rabbits. Conclusion of above results; Synergistic effect of cefotaxime on diuretic action of furosemide showed the comparative inhibition of plasma protein binding with furosemide by cefotaxime, and the continuation of diuretic effect seems excretion of furosemide on the in-hibited by competition between furosemide and cefotaxime in renal tubular excretion.

IHOP실행계획의 전산화체계 구축

宋武錫,金庸燮,李大炯 弘益大學校 産業技術硏究所 2005 産業技術 Vol.15 No.-

Higher Productivity and less cost during the manufacturing process of ships are required to maintain international competitiveness of modern shipbuilding industries. The integrated hull/ outfitting/ painting scheduling(IHOP) process is a final point, where logistics are finally being integrated and upcoming schedules are made. Therefore, more profits are expected from IHOP by effective management. In this thesis, IHOP is proposed in order to solve how to choose block erection date withIHOP scheduling logic. Characteristics of erection process had the non-fixed elements, and it requires a lot of calculation. So IHOP, which demands less calculations and reflects more of the non-fixed elements, is the best profit solver in integrated schedule problem. It was applicable in diminution method of maximum load through load balancing measure. IHOP seeks for a gradual lowering of the maximum load, and consequently aims for load balancing. It was effective for not only decrease of complex group work, but also decrease of overtime work. The result of IHOP scheduling is highly advised to utilize fabrication, outfitting shops. A standardized operation and load of resource will eventually be applied in long-term time span point of view for this will make it easy to enable capacity planning and workforce planning. It is also expected to eliminate inefficiency in overtime work and efficiently utilize manpower in short-term.

중대산업사고 예방을 위한 종합위험관리체제(IRMS) 구축에 관한 연구

권혁면,성대현,김재현,임대식,김기영,편무욱,문일,고재욱,이영순,윤인섭 한국안전학회 2003 한국안전학회지 Vol.18 No.3

The Process Safety Management (PSM) by the Law of Industry, Safety and Health has been performed for preventing major accidents of chemical plants since 1996. In terms of preventing chemical accidents more precisely, it is essential to develop a tool for quantitative risk assessment. For this, KOSHA (Korea Occupational Safety and Health Agency) developed an Integrated Risk Management System (IRMS) . The system is designed to assimilate data on chemical plant hazards from external database, to integrate these data with location information (topographic and demographic), and to make them user-friendly accessible. The system consists of several main functions: display of five major Korean petrochemical complex layout, display of equipment layout with its information utilizing the external database, zonation of the hazard effected area with consequence analyses, the most probable accident scenario generation, accident/incident database and calculation of frequency of accident using equipment reliability database, etc. The highlight of IRMS is to provide the risk contours using GIS(Geographical Information System) technology. IRMS is intended to manage hazardous installation more systematically and effectively, to reduce the number of accident remarkably, further minimizing production loss in the plant. The system is now under application to about 500 PSM sites as well as and emergency authorities in Korea by KOSHA (Korea Occupational Safety and Health Agency)

오차드그래스(Dactylis glomerata L.)의 품종에 따른 종자유래의 캘러스 형성률과, 캘러스 크기 및 식물체 재분화 효율의 비교

배은경,이인애,김기용,이병현,손대영,이효신,정민섭,조진기 Plant molecular biology and biotechnology research 2002 Plant molecular biology and biotechnology research Vol.2002 No.-

Comparison results of callus formation ratio from seed explants, callus sizes, regeneration ratios from callus and regeneration efficiency [calculated by following formular; callus formation ratio(%) × regeneration ratio(%)/100]for 27 ochardgrass (Dactylis glomerata L.)varieties imported and Hapsung 2 developed in Korea are as follows; 1. Among ochardgrass varieties showing more than 50% callus formation ratios, the descending order of callus formation ratio after bedding the seed explants for 4 weeks was 93>Sparta>Pizza>Condor>Lidaglo>Glorus>Hapsung2>Frode. 2. The callus sizes after bedding for 4 weeks were in the range of φ 0.43cm~4.2cm in which there was 10 times size difference between the largest one and the smallest one but most of them were between φ2.5cm~4cm. 3. The regeneration ratio from callus among varieties were in the range of 0~36% and descending order of the upper 6 varieties was Plano>Akimidori>Justus>Lidacta>Currie>Hall mark. 4. The regeneration efficiency which is calculated by the ratios of regeneration from seed explant numbers was between 0 to 17.4% among which Justus showed the highest value in the 4-week treatment. 5. The correlation between callus formation ratios and the callus sizes, callus formation ratios and regeneration efficiency, and callus sizes and regeneration efficiency were r=0.5765, r=0.6365 and r=0.6246, respectively in 4-week callus and all the correlations were significant on the 1% level. 6. In 6-week callus, the descending order callus formation ratios from seed sxplants for the best 6 varieties was Condor>Sparta>93M>Justus>Potomac>Lidaglo>Frode. 7. The callus sizes formed were between φ1.5~5.7cm in which Sparta, the largest one of φ5.7cm was five times larger than the smallest one. The callus size of the control variety. Hapsung 2 was φ3.8cm, which belonged to larger size. 8. Regeneration ratio showed a great deviation among varieties from 6-week old calli by showing from 0% to 100% in which all the calli were regenerated in Plano while no callus was regenerated in Juno, 9. The range of regeneration effciency was between 0~28% among varieties in which the values from 6-week callus treatment were larger than those from 4-week callus treatment. Especially, the value of Potomac in 6-week was 3 times larger than that in 4-week. 10. The correlation between callus formation ratios and the callus sizes, callus formation ratios and regeneration efficiency, and callus sizes and regeneration effciency were r=0.8369, r=0.6683 and r=0.5937, respectively in 6-week callus, and all the correlations were significant on the 1% level.

농아에서의 측두골 전산화 단층촬영 소견과 다른검사 요인과의 연관성

조태환,이상흔,권대구,엄규상,성창섭,김용선,한기원 경북대학교 병원 1998 경북대학교병원의학연구소논문집 Vol.2 No.1

Temporal bone high resolution computed tomogram(TBHRCT)is a essential diagnostic tool in considering for cochlear implantation in patients with profound sensorineural hearing loss. This study was designed for an effort to provide and efficacy of TBHRCT in determination of inner ear malformations for the patients who have profound sensorineural hearing loss and to examine the relationships between TBHRCT findings and other preoperative evalutions for cochlear implantation in that patients. Authors examined 68 deaf patients to provide fundamental data for cochlear implantation. Inner ear abnormalities were founded in 13(19%) patients, among which 10(14.7%) patients had Mondini'dysplasia in which 5 patients were hypoplastic type and 5 patients were hydrops type. Other inner ear abnormalities were as follows : lateral semicircular canal hypoplasia ; internal auditory canal abnormality ; cochlear aqueduct widening ; vestibular aqueduct widening. No relationships were found between TBHRCT findings and other test results. : promontory test, K-WISC cognitive test etc.(Korean J Otolaryngol 39 : 8, 1996)