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일라이트를 적용한 기능성 호안블럭 개발을 위한 기초 연구
권종국,이석기,신은철 한국환경분석학회 2019 환경분석과 독성보건 Vol.22 No.4
In this study, concrete, which consists of 9% Illite and 3% cement replaced with Illite, was studied. To analyze the effect of the developed block on river and sea environments, formaldehyde emission, far-infrared radiation, and fish acute toxicity tests were employed. Compared with the standard rates, the formaldehyde adsorption rate and addition adsorption rate of the developed block increased by 130% and 112%, respectively. Additionally, toxic and intoxication were not observed during the 96-h fish acute toxicity test. Furthermore, 92.3% of the far-infrared radiation rate was checked. We believe that this study can be used as a method to protect environments such as seas and rivers by employing the developed block at construction sites.
토끼의 임신에 대한 Halothane 및 Pentobarbital Sodium 마취의 영향
권종국,Kwun, Jong Kuk 대한수의학회 1975 大韓獸醫學會誌 Vol.15 No.1
The effects of halothane and pentobarbital sodium anaesthesia in implantation and maintenance of pregnancy were compared in the rabbit ovariectomized the day after insemination and given steroid replacement therapy. The result has shown that halothane anaesthesia did not favour the overall process of implantation or foetal development, compared with pentobarbital sodium.
Plasma Progestin Concentration In Artificially Maintained Pregnancy
권종국,이영소,Kwun, Jong-Kuk,Lee, Young-So The Korean Society for Reproductive Medicine 1976 Clinical and Experimental Reproductive Medicine Vol.3 No.2
The changes of the plasma progestin concentations in normal pregnancy and artificially maintained pregnancy of the rabbits by hormonal replace therapy after induced ovulation and insemination on Day 1, followed by ovariectomy on Day 2, were checked by direct measurement, competitive protein-binding assay, from the time of mating through to parturition. The results obstained in this experiment can be summarized as follows: (i) The mean concentration of progestin in normally pregnant rabbits increased from $1.7{\sim}2.7$ ng/ml on Day 1 to $19.8{\sim}25.3$ ng/ml on Days $13{\sim}15$ and declined slowly thereafter until term. (ii) The progesterone levels in artificially maintained pregnancy by hormonal replacement therapy showed quite a similar pattern to that in normally pregnant rabbits. 동물에서 정상적인 임신유지를 함에 필요한 홀몬의 양을 측정하기 위하여 토끼에서 인공수정을 실시한 다음날 양쪽 ovary를 제거하고, 홀몬대치요법(replace therapy)에 의해서 인공적으로 임신상태를 분만시까지 유지시키면서 competitive protein-binding assay method을 이용하여 혈중 progestin의 농도를 측정하여 정상 임신토끼와 비교하였던 바 다음과 같은 결과를 얻었다. 1) 정상임신토끼에 있어서 혈중 progestin의 평균 농도 변화는 제 1일에 $1.7{\sim}2.7$ ng/ml으로 시작해서 차차 증가되어 제$13{\sim}15$일까지는 $19.8{\sim}25.3$ ng/ml까지 상승하였다가 그후 분만시까지 서서히 감소되었다. 2) 홀몬 대치요법에 의해서 인공적으로 임신을 유지시킨 토끼의 혈중 progestin 농도는 정상토끼의 progestin 농도의 변화와 매우 비슷한 변화곡선을 나타내었다.
Propylthiouracil이 재래산양(在來山羊)의 대사율(代謝率) 및 갑상선(甲狀腺) 기능(機能)에 미치는 영향
권종국,성재기,이영소,이용빈,정영채,Kwun, Jong Kuk,Sung, Jai Ki,Rhee, Young So,Lee, Yong-Bin,Chung, Yung Chai 대한수의학회 1967 大韓獸醫學會誌 Vol.7 No.2
An experiment was performed in order to investigate the effects of daily oral administration of propylthiouracil per kg body weight on the metabolic rate and the thyroidal activity in ten, Korean native goats by using the Benedict-Roth Metabolism apparatus and the radioactive iodine-131 in the average environmental temperature at $5.7^{\circ}C$. The results obtained were as follows: 1) The mean metabolic rates of the treated group and the control group were $34.5Kcal./m^2/hr.$ and $33.8Kcal./m^2/hr.$ 2) The peak of thyroidal uptake $I^{131}$ rate in the treated group was 20.12% in 48 hrs., following administration of $I^{131}$ and it was 22.62% in the control group in 96 hrs., Highly significant difference was observed(P<0.01).
Pentobarbital Sodium이 개의 혈액성분에 미치는 작용
권종국,Kwun Jong Kuk 대한수의사회 1962 대한수의사회지 Vol.6 No.3
Twenty-three dogs were used in a study to determine the effects of anesthetic does of Pentobarbital sodium on Leukocytes, erythrocytes, hematocrits and hemoglobin in dogs. The results showed that the leukocyte counts dereased significantly immedately afte
Effect of Adrenalectomy on Implantation and Maintenance of Pregnancy in Ovariectomized Rabbits
권종국,Kwun, Jong Kuk The Korean Society of Veterinary Science 1975 大韓獸醫學會誌 Vol.15 No.1
난소를 제거한 가토에 있어서 부신에서 분비되는 oestrogen이 착상에 충분할 가능성이 있음에 비추어 이 실험에서는 가토에서 oestrogen의 근원이 되는 난소와 부신을 함께 제거하여도 착상이 여전히 일어나며 임신이 유지되는가를 실험하였다. 이 실험결과는 다음 두가지 점을 밝혀주었다. 1. 부신에서는 가토의 착상에 충분한 oestrogen을 분비하지 아니하였다. 2. 가토의 착상과 임신유지는 oestrogen 없이도 가능하였다.
재래종과 Saanen 종 염소의 갑상선 기능과 증체율의 비교
권종국,Kwun, Jong Kuk 대한수의학회 1972 大韓獸醫學會誌 Vol.12 No.1
In native and Saanen goats, the thyroidal iodine uptake rate and its correlation between thyroidal activity and body gain were studied. The results were as follows: 1. The thyroidal iodine-131 uptake rate in native and Saanen goats were 10.46% and 21.26%, respectively, and the difference was statistically significant (P<0.01). 2. The correlation coefficients between monthly body gain and thyroidal iodine-131 uptake rate were -0.32 and -0.46 in native and Saanen goats, respectively. The correlations were negative and not significant between the rates.