전문가시스템언어를 이용한 식품세균의 컴퓨터보조학습프로그램의 개발

이형춘 서원대학교 응용과학연구소 1994 응용과학연구 Vol.3 No.1

A computer assisted instruction program was developed for the aids of the learning and identification practice of food bacteria. The twenty-nine genera of bacteria important in foods were selected and the subjects practiced with a CAI program were suggested. The fifty genara of bacteria were selected for their frequent occurence in foods and the decision tress were prepared for the identification of them. CLIPS, an expert system tool, was used as a programming language. The Iearning program was composed of the query rules in its knowledge-base, and the identification program was composed of the query rues, naming-bacteria rules and the control rules. The interactive learning and identification of food bacteria were smoothly executed by the CAI program.

배추 Plug育苗條件이 苗素質에 미치는 影響

李喆浩,崔周鎬,朴重春,孫嶺杰,朴鳳植,李炯貞 진주산업대학교 농업기술연구소 1999 農業技術硏究所報 Vol.12 No.-

배추 plug육묘 조건을 알아보기 위하여 상토 종류, 질소시비수준, plug트레이 배수공수준을 달리하여 실험한 결과를 요약하면 다음과 같다. 1. 유묘출현율은 A상토<B상토<C상토의 順으로 높았고, 질소시비수준은 무비구에서 높고, 시비구에서는 90∼90ppm수준에서 높은 편이었으며 배수공수에 따라서는 배수공이 적은 128공구가 출현율이 높았다. 2. 幼苗의 葉발생도 A상토<B상토<C상토 순으로 높았고, 질소시비수준은 다비구(150ppm구)에서 엽수 5배로 최대엽수를 나타내었고, 배수공수에 따라서는 배수공이 적은 128공구가 높았다. 3. 엽장의 길이는 A상토구는 128공구에서 질소시비수준 120ppm에서 6.98cm로 가장 길었으며, B상토구에서 128배수공구의 시비수준 150ppm에서 12.41cm로 가장 길었고, C상토구에서도 128배수공구의 시비수준 150ppm에서 12.88cm, 200배수공구에서도 9.29cm로 가장 길었고 무비구에서는 공히 가장 짧았다. 4. 葉幅도 엽수와 엽장과 비슷한 경향으로 기비로 사용된 질소의 시비수준이 증가할수록 엽장이나 엽폭이 증가하여 B상토구의 150ppm 시비구에서 4.80cm로 최대치를 나타냈으며 시비량이 감소할수록 엽폭도 줄어드는 경향이였다. 5. 뿌리의 신장은 A상토구의 128배수공구에서 질소질 함량이 90∼120ppm수준의 범위내에서 신장이 양호하였으나 150ppm시비구에서는 불량한 반면, B와 C상토구에서는 90∼150ppm 모두에서 양호하였다. 6. 생체중과 건물중도 상토조성, 질소질비료 및 트레이 크기에 따라 모두 크게 영향을 받는 것으로 나타났으며 C상토구의 150ppm시비구에서 주당 3.0g의 생체중에서 최대치를 보였고 건물중 역시 C상토구의 150ppm시비구에서 4주에 600mg의 생체중의 증가를 보여 최대의 기록을 나타냈고 질소질의 농도 150ppm이 생체중 및 건물중 증가에 가장 효과적인 것으로 나타났다. The experiments were conducted to develop ideal substrates for the production of good quality in cabbage plug and also to improve the media with low or non environmental pollution by blending and mixing artificial substrate including peat moss, coir, perlite, vermiculite, carbonized rice hull and zeolite. In effects of soil substrate combination, nitrogen concentration and tray cell size on growing of 'Baekro', chinese cabbage, the ratio of seedling emergency in all fertilizer block was higher than non-fertilizer of nitrogen by 80%. The number of leaves were most increased in the 150ppm nitrogen solution of B block(coir 50%, vermiculite 10% and perlite+carbonized rice hull-zeolite 40%) and C block(coir 40%, vermiculite 20% and perlite+carbonized rice hull+zeolite 40%). The leaf length and leaf width were similar with that result in the number of leaves. Rooting condition was the best in the 90∼120ppm nitrogen solution of A block(TOSILI No1, SHINAN-JEONGMIL(Co)) in 128 tray cell size. The fresh weight and dry weight were increased as the order A<B<C in soil combination, were increased in the fertilizer which has more nitrogen concentration and were increased higher in 128 than 200 tray cell size, and chlorophyll concentration was the highest in the 150ppm nitrogen solution of A and B soil combination.

온-라인 컴퓨터제어에 의한 메탄올로부터 균체의 생산

이형춘,이계호 서울保健大學 1989 論文集 Vol.9 No.1

마이크로컴퓨터에 의한 溫熱指數의 自動測定 및 學習

이형춘,우세홍,김을환,최한영,유영식,김남천,이상건 서울保健大學 1991 論文集 Vol.11 No.1

Glycol Oleates의 합성과 절삭유제로서의 물성

최형기,이호식,이치우,강신춘,노시태 한양대학교 공학기술연구소 1993 공학기술논문집 Vol.2 No.1

Glycololeates for the application of cutting fluid were synthesized from oleic acid and glycols such as ethylene glycol, diethylene glycol and triethylene glycol. The ratio of glycol-monooleate and dioleate in product according to the reaction condition was analyzed by TLC, CC and HPLC. Properties of glycololeates as cutting fluid were examined by various testing methods such as profile test, pH test, anti-foaming test friction coefficient test and emulsion stability test to compare those of base oil and cutting fluid trading in the market. Non-catalytic reaction of glycololeates synthesis was showed too low conversion rate, but too fast conversion rate and deep color deterioration of products was obtained with acid-catalyses reaction. Using the SnCl2 catalyst, conversion rate was medium range and products which suitable for the application of cutting fluid with mild colored and with desirable mono- and di-oleate composition was obtained. Cutting fluidal properties of glycololeates with SnCl2 catalyst were better than those of base oil, and were similar level to those of cutting fluid containing various additives.

불포화 레시틴을 이용한 나노리포좀 개발에 관한 연구

강기춘,이청희,왕수환,이천일,표형배,정노희 한국공업화학회 2004 응용화학 Vol.8 No.1

Nowadays many products using nano-technology have been released and nano-technology would be more prospected in all kinds of industries especially cosmetic manufacturing and ingredient fields. In cosmetics, the saturated lecithin, one of the main surfactants to make liposome, has been used for its stability but it has been substituting by unsaturated lecithin which has excellent skin affinity and penetration. So we studied to develop nano-liposome below 50㎚ with unsaturated lecithin. To make stable nano-liposome, many factors including solvent like propylene glycol, pH balance, homogenizing pressure and liposome stabilizer like surfactant are important especially stearate series surfactants have positive effect in liposome size and long term stability. But in liposome with saturated lecithin, surfactant has negative effect and appropriate amount of oil should be used to be stable. So we could conclude that unsaturated lecithin is suitable than saturated lecithin to make nano-liposome.

專門大學 職業敎育 내실화와 産學協同 활성화 방안 : 위생사를 중심으로

김남천,이상건,우세홍,김을환,이형춘,이인길 서울保健大學 1987 論文集 Vol.7 No.1

生物學的 廢水處理에 鹽素이온이 미치는 影響

우세홍,김남천,이형춘 서울保健大學 1989 論文集 Vol.9 No.1

The synthesis wastewater containing high concentration of chloride ion(Cl^(-)) was treated with sludge returned complete mixing activated sludge process. 1. At Cl^(-) concentration of less than 10,413㎎/l, BOD removal efficiency was more than 90% and COD removal efficiency was more than 80%. The formation and the settlibility of the floc were poor. 2. At Cl^(-) concentration of less than 5,146mg/l, the oxygen uptake rate was decreased to 38.3~84.6㎎O_(2)/l. hr and ㎏ O_(2)/㎏.BODrem was 0.8~1.427. The oxygen uptake rate was decreased at Cl^(-) concentration of more than 5,146㎎/l. 3. Substract removal rate constant (Km) was 1.02 ~ 3.0/hr at Cl^(-) concentration of less than 5,l46㎎/l and was consisderably decreased at Cl^(-) concentration of more than 5,146㎎/l.

常溫에서 豚·人糞 混合廢棄物의 嫌氣性處理(綜合編)

김남천,민달기,이형춘 서울保健大學 1989 論文集 Vol.9 No.1

Pig was mixed with the same quantity of human night soil and was anaerobically digested at 25℃. 1. The gas production was 0.21~0.36㎥/㎏ VS Fed/day and the gas had a methane content of 43∼64%. 2. The maximum gas production was 0.39㎥/㎏ VS Fed/day and the methane gas production was estimated at 0.29㎥ CH_(4)/㎏ VS Fed/day. 3. The percentage removals in COD, BOD, TS and volatile solid (VS) were 13∼35.3%, 20.8∼58.5%, 14.8∼40% and 36∼49% respectively and were increased with increase of hydraulic retention time (HRT). 4. When the HRT was increased from l0day to 40day, the gas production was increased by 1.7 times and the methane gas production was increased by 2.6times. 5. The refractory fraction on inlet VS was 37.5% and substrate removal rate constant (K) was estimated at 0.107/day. 6. The specific resistance of sludge was 3.23 x 10^(10) ∼ 7.58 x 10^(10) sec²/g and dewatering depended on HRT.

立地特性別 Asbestos의 環境濃度

유영식,김종규,민달기,김남천,이형춘,최한영,김을환,우세홍,이상건 서울保健大學 1989 論文集 Vol.9 No.1