식이 조건에 따른 햄스터의 생장과 조직의 비교

조규태,서동석,안경준 西原大學校 基礎科學硏究所 1999 基礎科學硏究論叢 Vol.13 No.-

식이 조건(pellet, mixed pellet, egg yolk)을 달리하였을 때, 햄스터의 체중 증가량, 먹이 소비량 및 식이 효율 그리고 각 장기의 차이점을 비교하였다. 햄스터의 체중 증가량과 먹이 소비량의 비교는 ANOVA 검정과 Duncan이 다중비교검정에 기초를 두었고 식이 효율은 상관관계를 통하여 알아보았다. 혼합된 사료를 먹었을 때가 가장 많은 체중 증가량을 보였고 다음은 사료, 난황 순서로 증가하였다. 그리고 햄스터는 난황보다는 사료와 혼합 사료를 더 좋아하였으며, 난황만 먹인 경우 간조직에서 병적인 변화를 볼 수 있었다. The increase of weight, consumption rate of food, and histological structure of golden hamster were compared under different condition of feed(pellet, mixed pellet, and egg yolk). The comparison of increasing rate of weight and consumption rate of food was based on ANOVA test and Duncan's multiple range test. The golden hamsters fed on mixed pellet showed prominent growth but in the case of egg yolk showed poor growth. The golden hamsters preferred mixed pellet and pellet to egg yolk, and showed abnormal histological change on the liver and kidney tissue when only the egg yolk was fed.

水稻의 穗發芽性에 關한 硏究 (Ⅱ) 栽培時期 移動에 따른 穗發芽性

趙東三,孫錫龍,金鍾煥,尹太,朴成圭,權圭七 충북대학교 농업과학기술연구소 1988 農業科學硏究 Vol.6 No.1

This study was conducted in 1987 to investigate the viviparous germination in rice. Six varieties, i. e., Daeseongbyeo, Sangpungbyeo Hwaseongbyeo, Taebagbyeo, Chilseongbyeo and Samgangbyeo were used for this experiment. Seedlings were transplanted on May 25 and dune 5 and panicles were harvested 5 times with 5 days interval beginning 25 days after heading. Panicles were incubated at normal temperature right after harvest to observe the germination. Rate of viviparous germination of Japonica type was higher than that of Indica type. The early varieties such as Daeseongbyeo, showed high viviparous germination. Rate of viviparous germination of May 25 transplanting was higher than that of June 5 transplanting. Viviparous germination rate of Japonica type appeared to be increased as the harvesting was postponed. On the other hand, Indica type didn't show viviparous germinate. Based on this study the optimum harvesting time of tested varieties appeared to be between 40 to 45 days after heading.

Alkali 감령처리된 Polyethylene Terepthalate Filament 직물에 나타난 흰얼룩의 원인분석

曺煥,李石榮,許萬宇,鄭元圭 嶺南大學校 工業技術硏究所 1983 연구보고 Vol.11 No.1

A study has been undertaken to know the reason why the white specks appear in the polyethylene terephthalate (PET) filament fabrics which were made alkali weight loss treatment in the dyeing and finishing factories of Taegu area. The results are as follows 1. Main component of the white spects in PET filament fabrics is CaCo₃. 2. The CaCO₃was extracted from the washing water and adhered to the PET filament fabrics during the dyeing and finishing process. 3. When PET filament fabrics were treated with hard water, the warp sizing agent did not dissolve to make specks on dyed fabrics. Then the insoluble sizing agent can not be got rid of by alkali treatment. 4. On account of using Na₂CO₃ in washing PET filament fabrics, white spects also can be appeared.

重化學工業機械의 國産化方案에 關한 硏究 : 特히 窯業에 있어서의 燒成爐, 粉碎機, 排風機, 冷却機, 電氣集마器 自動枰量供給器 等의 製作을 目的으로

趙哲衡,朴碩喆,丁太權,宋鐵,桭達福,金基玉,朴煥奎,趙煥從,朴善鐘,金種一,李茂錫 朝鮮大學校 1977 綜合論文集 Vol.1977 No.-

This is to investigate the posibility of home manufacturing of heavy chemical industry machines, such as rotary kiln, crusher, blower, cooler, electrostatic precipitator and weighing feeder of cement plant. It is concluded that even though we can not make all of them (some of them are made now and some others are going to be made in the near future, some of them are made whole and some others are made partially), we can build or export the cement plant by importing the important machines which we can not make now and by substituting them with ours gradually.

강모단 하방에 용수철이 부착된 칫솔의 치태 제거 효과에 관한 임상적 연구

조성훈,양규호,오종석 전남대학교 치과대학 2000 전남치대논문집 Vol.12 No.1

Oral examinations were conducted before the experiment started. The students were given common toothbrushes (control group) or spring-attached toothbrushes (experimental group) and instructed to brush their teeth by scrubbing method. Measurement of plaque index and count of salivary bacteria were done at 0, 1, 3, and 5 weeks. 1. Mean plaque index was significantly reduced at week 1 compared with at week 0 in both groups. (P<0.05) 2. Mean plaque index was significantly reduced at week 3 compared with at week 1 in the experimental group. (P<0.05) 3. Mean plaque index was significantly reduced at week 5 compared with at week 3 in the experimental group. (P<0.05) 4. There were no significant differences of mean plaque index among week 1, week 3, and week 5 in control group. (P>0.05) 5. The number of salivary bacteria was slightly reduced during the experiment, however there was no statistical significance. (P>0.05) To reduce the plaque effectively, the use of spring-attached toothbrush should be recommended, and adequeate instruction for children is needed.

GIS를 기반으로 한 시간제약을 가진 주문배달 및 수거운송계획모델

황흥석,조규성 한국경영과학회 2002 한국경영과학회 학술대회논문집 Vol.- No.1(1)

최근의 새로운 정보기술이 발전됨에 따라 대다수 수거 및 배송관련업체들은 효과적인 차량운송계획에 대한 새로운 방법을 모색하고 있다. 본 연구는 주문배달 및 수거를 수행하는 택배시스템 내에서 효과적인 차량운송계획을 수행하기 위한 GIS시스템을 응용한 연구로서, 고객의 요구시간제약과 화물의 수거 및 배달을 동시에 고려한 최적운송경로시스템을 개발하였다. 이를 위해 GeoDatabase를 기반으로 한 차량운송계획 프로그램을 개발하고, 이를 GIS시스템(Arc Logistics Route)에 적용하여 물류센터와 고객간의 차량운송 계획 및 운송정보시스템을 구현하였으며, 부산지역의 수산물류운송계획에 적용하였다.

배달 및 수거를 고려한 차량운송계획모델

황흥석,조규성,홍창우 한국경영과학회 2000 한국경영과학회 학술대회논문집 Vol.- No.1

본 연구는 Heuristic 알고리즘 및 유전자알고리즘(GA)을 이용하여 수거(Pickup) 및 배달(Delivery)을 동시에 고려한 통합차량운송계획 모델의 개발이다. 본 연구는 기존의 TSP의 문제를 확장 운용하였으며, 이는 한 Route에 수거지(Origin)와 운반자(Destination)를 포함하는 수요들을 만족하도록 운반되어야 하는 문제이다. 이러한 통합차량경로계획문제(VRP : Vehicle Routing Problem)를 해결하기 위한 접근방법으로 Heuristic 방법을 사용하였으며, 기존의 Saving 알고리즘과 유전자알고리즘 (Genetic Algorithm)의 각종 연산자(Operators)들을 계산하여 사용한 TSP문제의 해를 본 연구의 해의 초기해로 사용하였으며 수거 및 배달문제의 특성을 고려하여 해를 구하였다. 본 연구의 결과를 다양한 운송환경에서, 거리산정방법, 가용운송장비 대수, 운송시간의 제한, 물류센터 및 운송지점의 위치 및 수요량 등 다양한 인자들을 고려한 통합시스템으로 프로그램을 개발하고 Sample 문제를 통하여 응용결과를 보였다.

飼料資源開發을 위한 雜灌木樹葉의 飼料價値와 韓牛의 放牧利用에 關한 硏究

尹益錫,陸完芳,李仁德,曺圭燉,金炯基 건국대학교 1978 學術誌 Vol.22 No.1

As a part of forestry utilization for livestock feed resources the feeding value ague of shrub leaf by growth stage and grazing behabiour of the native cattle at shrubby grassland in function of seasons were investigated and the following results were obtained. 1. The crude protein content of oak leaf declined as the growth stage increased whereas the contents of crude fiber and crude fat showed the opposite tendency. 2. The intake of oak leaf paralleled with the amount given while the intake of the mixed grass leas remarkable increased and the body weight gain was also remarkably increased. 3. The average number of oak leaf intake was 70.5 times for spring, 148.7 for summer, and 395.7 for autumn. 4. The grazing time by the native cattle was decreased in the order of spring, autumn, and summer. As for the grazing behaviour, the intake activity was most active during morning, mid-day and late afternoon or three times a day. 5. The duration of rumination was found to be in the decreasing order or summer, autumn and spring, cattles ruminated more when the grasses were more abundant. 6. As for the inactive period of animal, it was short during spring when the animals spent more time for eating but it was about 5 times longer during both summer and autumn.

갑상선기능저하증에 기인한 내인성 급사 1예 보고

이정규,전지현,김민정,이규재,김한겸,조현득,채양석 大韓法醫學會 1999 대한법의학회지 Vol.23 No.2

Although it is known that hypothyroidism can cause cardiac dysfunction, it is very hard to find a case report on sudden death due to hypothyroidism. There are only two reported cases on mediline; one is about a 15-year-old girl who died suddenly of Hashimoto's thyroiditis and the other is about a 31-year-old man who also died suddenly of hypothyroidism associated with chronic lymphocytic thyroiditis. Recently we found a young woman who unexpectedly died while she was sleeping. She was diagnosed as hypothyroidism when she went to hospital about a month before she died. At autopsy there were roughly four abnormal findings; Hashimoto's thyroiditis, mild chronic active hepatitis, diverticulosis and accessory spleen. Trace of chlorpheniramine was detected in gastric remains and blood alcohol level was 0.37 percent. To our knowledge, this is the first case reporting sudden and unexpected natural death associated with hypothyroidism in Korea.

中山間地(標高 250m)에서 참깨 播種適期와 晩播限界期에 關한 硏究

孫錫龍,崔仁植,趙鎭泰,權圭七,金仁培,李濟弘 충북대학교 농업과학기술연구소 1986 農業科學硏究 Vol.4 No.-

In order to determinate the optimum plating time and its limitation, an eary harvest and high yeld sesame varety-Poong Nyun Ggae-was cultivated on the semi-mountainous area of 250 meter above sea level. The variety was cultivated with a single and double cropping system. The single cropping plots were covered with transparent polyethylene film on 1st , 11th and 21th in May and the double cropping plots were covered with PE film on 5th, 15th, 25th in June respectively and on 5th July. The results obtained are as follows; Yield of the plot planted on 1st May was 59kg/10a. In compaorisn with this, yields were increased 16% and 25% in plots planted on 11th and 21th May, respectively. The optimum planting time was considered near 20th May for the single cropping system and it should be considered before 15th June for the double cropping system in the semimountainous area.