경막내로 투여한 신경전달물질이 통증성 배뇨반사에 미치는 영향

박재식,김덕윤,안동국 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.8

On-line 학습 신경회로망을 이용한 열간 압연하중 예측

손준식,이덕만,김일수,최승갑 한국공작기계학회 2005 한국생산제조학회지 Vol.14 No.1

In the face of global competition, the requirements for the continuously increasing productivity, flexibility and quality(dimensional accuracy, mechanical properties and surface properties) have imposed a major change on steel manufacturing industries. Indeed, one of the keys to achieve this goal is the automation of the steel-making process using AI(Artificial Intelligence) techniques. The automation of hot rolling process requires the developments of several mathematical models for simulation and quantitative description of the industrial operations involved. In this paper, an on-line training neural network for both long-term learning and short-term learning was developed in order to improve the prediction of rolling force in hot rolling mill. This analysis shows that the predicted rolling force is very closed to the actual rolling force, and the thickness error of the strip is considerably reduced.

신령버섯 고온기 지면재배법 개발에 관한 연구

조덕봉,김재창,최충식 광주보건대학 2001 論文集 Vol.26 No.-

Argaricus blazei Murill is an edible mushroom, which is beneficial for the anticancer and canceroidal. it grows naturally in Florida US and the centers of the field in Central and South America, but not in Korea. It has been planted in Japan since the Japanese biologists confirmed that this mushroom contains the immunity-activating material. Also, the method of cultivation of this mushroom has been developed and diffused in Korea since 1996. In Korea, it is mainly cultivated in Gyongbukdo, Gangwondo and so on, with 82.500㎡ of cultivation area. The method of ground cultivation is as follow; 1. make the ridges and rows into the greenhouse after the equipment of 85% of shade net with a double layer in the plastic greenhouse, then cover the ridges with 0.33㎜-thick of vinyl resins which are bored at 10㎝ of intervals. 2. stack the bran-mature-treated rice straw on 100~150㎏/3.3㎡ of the floor of vinyl resins. 3. inoculate the spawns at the bran-mature-treated rice straw. 4. raise them at 22~28℃ of temperature. control the temperature using an extractor fan or plastic wing of greenhouse in the season of high temperature. 5. the amount of fresh mushroom is about 30.6㎏/3.3㎡. This method makes it possible to cultivate the mushroom without any air-conditioning unit, and it can increase the coefficient of utilization of greenhouse. Therefore we can expect it to create higher quality and more amount of mushroom compared with traditional method. The high price of A. blazei prevents us from the extension of cultivation because it limits the customer class and the market. That is why we started to study about the ground cultivation method which makes it possible to extent the customer class and the market and to create the stable incomes by supplying the cheap mushroom of high quality.

양송이 지면재배법 개발 연구

조덕봉,김재창,최충식 광주보건대학 2003 論文集 Vol.28 No.-

Agaricus bisporus is the mushroom which has the oldest history in the artificial cultivation, known to be started from the 16th century in France. We used the way that was moved the culture ground to the other place in the cultivation in its infancy. An wild mushroom develops on the ground which contains organic matters such as stable manure, wheat straw, and grass leaf, and the development period is spring and autumn. It is assumed that the mushroom is closely related to the soil from the raise of the spawn to the development of mushroom, and it has strong affinity to the soil. We have done the ground cultivation for Agaricus bisporus which has strong affinity to the soil to minimize the production cost, and the result is that; 1. Temperature of the greenhouse was 21∼33℃ and that of culture ground was 20∼27℃ when we cultivated the mushroom in summer. 2. While we cultivated it in autumn, the temperature of the greenhouse was 14∼28℃, and that of culture ground was 16∼25℃. 3. While the summer cultivation, it took 67 days from the building of the culture ground to the development of the first mushroom, and the case of the autumn cultivation, it took 71days. 4. The suitable variety for the ground cultivation was summer Agaricus bisporus 1-Ho in summer, and Agaricus bisporus 707-Ho in autumn. 5. The amount of mushroom which was producted by the ground cultivation was less than that of mushroom producted by the shell-using cultivation(ground cultivation : 50㎏/3.3㎡, shell-using cultivation : 60㎏/3.3㎡)

느타리버섯 복토재배에 관한 연구

조덕봉,김재창,최충식 광주보건대학 2000 論文集 Vol.25 No.-

This study was carried out to increase the amount of the Pleurotus ostreatus, by the mycelium on the surface of the shelf soundly through molding materials over the medium for preventing the dryness of the shelf, and to find out how to reduce the damages from disease and pest. The results were as follows: 1. Molding materials The best molding material was charcoal powder, and the mixture of charcoal powder and clay loam at a ration of 3 to 2 or more was also practicable. 2. The time of molding It was adequate to mold when the growth rate of mycelium was reached to 70~80% around 10~15 days after. 3. The amount of application The suitable amount of molding material was approximately 5ℓ/㎡.

ER 모델기술을 위한 그래픽 인터페이스에 관한 연구

申允植,吳得煥 金烏工科大學校 1988 論文集 Vol.9 No.-

Conceptual design의 특성과 Entity-Relationship model이 표현해야 할 사항으로부터 ER model description/manipulation language가 갖추어야 할 요소를 살펴보고 이를 바탕으로 기존의 description language를 비교 분석하고 현재의 문제점과 해결 방안을 제시한다.

연삭가공에서 절삭유 에어로졸 측정평가에 관한 연구

황덕철,황준,우창기,정의식 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

This paper presents the experimental results to analyze the characteristics of cutting fluid aerosol generation in grinding process. Machining is a one of the broad manufacturing process to produce the parts, products and various molds and dies. The environmental impact due to aerosol generation via atomization process is a major concern associated with environmental consciousness. Experimental results show that the generated fine aerosol which particle size less than 10 micron appears near worker's breath zone under given operational conditions. The aerosol concentration is much higher enough to affect human health risk with its generated aerosol quantities. This qualitative analysis can be provided the basic knowledge for further research for environmentally conscious machining technology developments.

느타리버섯 지면재배법 개발 연구

조덕봉,김재창,최충식 광주보건대학 2002 論文集 Vol.27 No.-

The wild agaric grows at the ground of the stump or the dead body of the broad-leaf tree because the ground has suitable condition for its growth. Also the soil has the effect of moisture-protection and heat insulation, so it has great condition for the growth of spawn and the development of mushroom(fruit-body). The shell-using cultivation which has been usually cultivated by agaric-cultivation farm makes it possible to control the temperature and the humidity because the mushrooms are cultivated in small area, but it needs more complex skills for the control of environment necessary for the argaric development. Another problem of the shell-using cultivation is that it needs special equipment and device which provide proper environment for the cultivation of agaric. The result of the ground cultivation we did from 1998 to 2000 for the reduction of these problems is: 1. The ground cultivation of agaric has reduced 34% of labor(333 hours when we cultivate at 330㎡-area) which was invested from the building of culture ground to the end of the cultivation compared with the shell-using cultivation. 2. The ground cultivation saved 13,800,000∼26,800,000 won of expenditure for facilities and equipment compared with the shell-using cultivation when cultivated 330㎡ of agaric-cultivating area. 3. We could save 1300ℓ of oil cost in the spring(from April to July), and 2300ℓ of oil cost in the autumn(from september to December). 4. The variety suitable for the found cultivation is Sam-bok agaric in the spring cultivation, and Choon-Choo 1-Ho and Won-Hyoung 2-Ho in the autumn cultivation.

원목열처리 방법이 표고버섯의 수확에 미치는 영향

조덕봉,최옥범,최충식,김재창 광주보건대학 1999 論文集 Vol.24 No.-

This study was performed to investigate the effect of log treatment on the harvesting and quality of Lentinus edodes. Effect of log Treatment on the pinning of Lentinus edodes was as follows. Nong-gi No. 3 of warm weather strain was the hightest pinning( 100%), San-jo No. 5 and Mo-ri No. 290 of cold weather strains and control were 10%, 10%, 70%, respectively. Fruiting contents of Lentinus edodes did not show significant difference between sample with heat treatment and control in cold weather strains. Fruiting contents of Nong-gi No. 3 of warm weather strain with heat treatment were higher than those of control without heat treatment. There was similar result in indivisual weight of Lentinus edodes.

Ag-알칼리 Mn산화물의 합성 및 특성에 관한 연구

김덕묵,민형식 단국대학교 1998 論文集 Vol.33 No.-

A Silver­alkali manganese oxide, Ag­M_2 MnO_3 has been prepared from Mn­salt and AgNO_3 by reacting with excess alkali hydroxide. The structure of the product have been determined by powder X-Ray diffraction, SEM, and chemically analysis. Performance and characteristics of the silver­alkali manganese oxide catalysed ozone decomposition are described in relation to the preparation conditions and the silver contents. This alkali manganese oxide catalyst showed the highest capacity in the other Ag­Mn­oxide system.