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고재준 한국생산성학회 1990 生産性論集 Vol.4 No.1
Korean econmy now faces necessity of accepting and realizing economic democratization because of seething national desire for higher wage and better welfare as well as even widening gap between the haves and the have pots which has been resulted from the quantitative economic growth. The purpose of this paper lies in suggesting measures of activating small businesses which are relatively more vulnerable than big businesses through technological innovation. This paper has studied the concept importance, characteristics, present situations, and supporting systems of technological innovation in small businesses. It also has reached the following conclusion as measures of activating small businesses through technological innovation. 1. Organization of research and establishment of measure for lack of manpower 2. Establishment of technical guidance departments classified by industry in the Federation of small business 3. Reinforcement of Industrial Technical Supporting Center 4. Establishment of optimal technical development systems 5. Expansion of investment in technical development 6. Promotion of market demand
各種 X線量照射後 白鼠骨髓變化의 長期觀察에 關한 實驗的 硏究
高在俊,張基完 우석대학교 의과대학 1968 우석의대잡지 Vol.5 No.2
The histologic features of irradiated bones were reviewed by Gates in 1943, and since then there have been many reports concerning the short term effect of external irradiation on haematopoietic bone marrow. The general effect is depletion of the cell population due to the death of the actively dividing haemopoietic cells, but the macrophages, reticular cells and fat cells being relatively radio-resistant. This cell depletion is accompanied by the dilation of the sinuses and the gradual formation of a fatty, fibrous, or a gelatinous type of the marrow. Regeneration of the marrow eventually ensues if the doses are not too severe. It has been known for many years, from both clinical and experimental evidence that X-rays are capable of producing severe damage to bone and that these change may ultimately lead to the formation of bone tumors. There are reports that bone tumors in man have been induced following exposure to radiation doses ranging from 1,400 to 10,000 R. Experimental data in this field are even more scanty than the clinical data. There have been few reports on the long term effects of radiations on the bone marrow. The observations which are reported here concerns the general and long term effects of 3,000 R, 1,000Rx3, 1,500R and 750R of 200kVp X-rays on the end of long bones of rats with particular emphasis on the dose rate of tumor production, incidence of tumor, period of tumor production, severity of damage to the epiphysis, metaphysis, diaphysis and period of repopulation in respones to the varying doses of X-ray. Results obtained were as follows. 1. Osteogenic sarcoma and fibrosarcoma were produced only in the group irradiated by dose of 3,000R, and the incidence of these malignant tumors in this group was 8.75%. The osteogenic sarcoma occurred in 3.75% and the fibrosarcoma in 5% of this group. The time needed for the tumor production ranged from 7 to 20 months. 2. The degenerative and destructive changes of the epiphysis were most prominent in the groups of acute doses of 3,000R and fractionated doses of 3,000R. The degenerative and destructive changes of the metaphysis were most prominent in the groups of acute doses of 1,500R and 750R. Degenerative and destructive changes of diaphysis were least in each irradiated groups. 3. The time required for the repopulation of bone marrow to normal state in each groups were as follows: about 7 to 8 months in acute doses of 3,000R group, 3 months in fractionated 3,000R group, 2 to 3 months in acute dose of 1,500R group and 2 weeks in 750 R group.
高在俊 배화여자대학 1987 培花論叢 Vol.6 No.-
The present conditions of Korean economy requires export increase, balanced industrial development and even distribution of wealth, which entails the development of small-sized businesses and the elevation of its productivity. To ensure such goals as mentioned above this paper conducted an analysis of American, Japanese and Taiwanese small-sized businesses. Furthermore, the paper analyzed present situations, problems of Korean small-sized businesses and adverse elements of its productivity. The measures for the improvement of productivity are as follows. 1. Enhancement of managers' consciousness on productivity. 2. Modernazation and automation of necessary equipments. 3. Elevation of technology. 4. Updated production management. 5. Rationalization of business management. 6. Strengthening of education and training for employees. 7. Improvement of union-management relations. 8. Utilization of management of information systems. 9. Activation of management systems. 10. Rationalization of wage-management. 11. Efficient supply of raw-materials. 12. Systematic approach for physical distribution management.
고재준,박세일,손원국,노경호,김충혁 한국조명·전기설비학회 2012 한국조명·전기설비학회 학술대회논문집 Vol.2012 No.10
LED 조명의 수명과 관련하여서는 충분치 않은 검증시간, 불확실한 열화 메커니즘, 검증에 필요한 대규모의 수량과 방대한 시간 등으로 아직까지 명확한 기준이나 규격은 제시되고 있지 못하다. 다만, 선진 LED 제조사를 중심으로 LED 패키지 단위에서의 수명이 IESNA LM-80-08(IES Approved Method for Measuring Lumen Maintenance of LED Light Sources)에 의거하여 제시되고 있다. 또한 미국의 에너지스타 프로그램에서는 외삽을 이용한 수명의 보증을 인정하고 있다. 이에 대하여 자세히 알아보기로 하겠다.
물의 결빙이 고분자전해질 연료전지 성능에 미치는 영향 및 그 원인에 관한 연구
고재준,조은애,하흥용,홍성안,이관영,임태원,오인환,Ko, Jae-Joon,Cho, Eun-Ae,Ha, Heung-Yong,Hong, Seong-Ahn,Lee, Kwan-Young,Lim, Tae-Won,Oh, In-Hwan 한국전기화학회 2003 한국전기화학회지 Vol.6 No.1
고분자 전해질 연료전지를 자동차용 동력원으로 사용하는 경우 겨울철 운전 시 연료전지 내에 존재하는 물이 결빙하여 연료전지의 성능을 저하시킬 수 있다. 물의 결빙이 연료전지의 성능에 미치는 영향을 조사하기 위해 연료전지의 온도를 운전온도인 $80^{\circ}C$에서 물이 결빙하기에 충분한 온도인 $-10^{\circ}C$까지 열순환하면서 전류전압 곡선을 측정했다. 열순환이 반복됨에 따라 물의 상변화와 이에 따른 부피변화로 인해 연료전지의 성능이 감소했다. 물의 결빙이 연료전지의 성능을 저하시키는 원인을 규명하기 위해 BET분석과 순환전류전압법, 임피더스 분석을 이용해 열순환이 전극의 구조와 분극 저항에 미치는 영향을 조사했다. Freezing of water in a polymer electrolyte membrane fuel cell (PEMFC) may cause severe problems in driving a fuel cell vehicle during the winter time. Characteristics of PEMFC which suffered low temperatures below zero degree was examined with the thermal cycles from 80 to $-10^{\circ}C$. With the thermal cycles, the cell performance was degraded due to the phase transformation and volume changes of water. Effects of freezing of water in PEMFC on the electrode structure and polarization resistance were examined by BET analysis, cyclic voltammetry, and AC impedance spectroscopy.