• Journal of Animal Science and Technology
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• v.46 no.6
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• pp.957-966
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• 2004

The objective of this study was to investigate the effects of BPA on reproductive characteristic and blood hematological and chemical values in mice. The male mice were intraperitoneally injected BPA in native control(no treatment), positive control(corn oil, 3$m\ell$/kg B.W), 0.05, 0.5 and 5.0mg BPA/kg B.W and female mice were injected BPA in control(corn oil, 3$m\ell$/kg B.W), 0.05, 0.5 and 5.0mg BPA/kg B.W with 5 times at 3 days interval for 14 days. The administration of BPA in male mice didn't affect the body and reproductive organ weight such as testis, epididymis, vesicular gland and coagulating gland. We found that the 5.0mg BPA group was significantly reduced the sperm concentration and increased the sperm abnormality compared to native, positive control and 0.05mg BPA groups(P<0.05), but any other effects were not found in sperm viability and motility in BPA treatment groups. The RBC, HB, HT, MCV, MCH, MCHC, albumin, BUN and total protein of blood hematological and chemical values in male were not different in all experimental groups(P>0.05). However, the value of WBC was slightly lower in BPA treatment groups than that of control groups and PLT was slightly higher in BPA groups than that of control groups, but not significantly defference among the experimental groups(P>0.05). In female mice, the effects of BPA on body weight didn’t affect in all experimental groups, but ovary weights in 0.5 and 5.0mg BPA groups were significantly increased compared to those in control and 0.05mg BPA group(P<0.05). The uterine weight in BPA groups was slightly higher than that of control group, but not significantly different in all experimental groups(P>0.05). The RBC, Hb, HT, MCV, MCH, MCHC, albumin and total protein of blood hematological and chemical values in female were not different in all experimental groups(P>0.05). The values of WBC and PLT in BPA groups were slightly higher than that of control, but not significantly different among the experimental groups. The concentration of BUN was the higher in BPA groups than that of control group. The histological evaluation of testis, ovary and uterus were not different in all experimental groups.

• 한국정보통신설비학회:학술대회논문집
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• 2004.08a
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• pp.230-233
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• 2004

현재 KT의 관로포설 공법은 관 상부 토피 1m를 확보한 상태에서 차량하중이 작용한다는 가정하에서 제정된 것이며, 토피 1m를 확보하지 못하는 구간에는 별도의 보강공법을 적용하고 있다. 그러나 현재 관로공사의 대부분을 차지하는 도로유관공사는 도로 조성이 종료되는 시점에는 토피 1m를 확보하지만, 도로조성 공사기간 중에는 별도의 보강공사 없이 토피 60cm 내외에서 공사 차량의 하중이 관로에 그대로 전달되고 있어 관로의 찌그러짐 현상이 발생하고 있다. 본 논문은 이와 같은 조건에서도 고품질의 관로를 확보하기 위하여 현행 FC관로 뿐만 아니라 지하매설관으로 사용되는 각종 재질의 관에 대한 특성을 검토하였으며 매설관 변형실험을 통하여 도로유관공사에 적합한 관로재질을 제시하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.117-119
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• 2010

본 논문에서는 옴니버스 형태의 동영상을 각 프로그램 별로 자동 분할하는 방법에 대해 제안하고자 한다. 국내 TV 프로그램의 경우 대부분의 개그 프로그램에서는 코너 별로 상단 또는 하단의 일정 위치에 코너명을 캡션으로 삽입하여 옴니버스 형태의 영상을 서비스한다. 이러한 코너명을 태깅아이콘으로 하여 지속되는 구간을 검출하여 시작시점과 종료시점을 검출함으로써 동영상을 의미적으로 분할 할 수 있다. 하지만 태깅아이콘의 경우 매우 높은 투명도를 갖는 경우가 많으므로 본 연구에서는 에지와 시간적인 지속성을 이용하여 에피소드를 분할하는 방법을 제안하고, 옴니버스 형태의 다양한 개그 프로그램에 대해 실험하여 제안한 방법의 우수성을 보인다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.8
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• pp.3028-3035
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• 2010

This paper propose a genetic method based on probability map to detect region of the lips on a natural image with the faces. The method has many solutions in order to detect regions such as the lips instead of one optimal solution of existing methods. To do this, it represents a pair of spatial coordinates as a chromosome, and introduces genetic operations like conservation interval, the number of generations and non-overlapping selection. By using the probability map of the HS in HSV color space, it increases adaptability to similar color that is a property of genetic algorithm. In our experiments, the optimal value of the important parameter $\beta$ was analyzed, which was used as the condition of an ending function and affected performance of the proposed algorithm. Also the algorithm was analyzed on what performance it has when its mating methods are different. The results of the experiment showed that our algorithm could be flexibly adapted for detecting other ROIs.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.2
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• pp.102-108
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• 2009

DO, ORP and pH values measured during SBR operation can provide information about removal reaction of organic contaminants and nutrient materials in the reactor. It is already generalized control strategy to control reaction phase time using their special patterns indicating the end of the removal reactions. However, those informations are limited to point out the end time of oxidative reaction in the aerobic phase or reductive reaction in the anoxic phase without giving quantitative value of influent loading level. In this research, a diagnosis algorithm which can estimate the loading level of carbon and ammonia as high, medium and low was developed using the basic measurements like DO, ORP, and pH. It will be possible to know the level of influent loading rate from those online measurements without experimental analysis.

• Development and Reproduction
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• v.8 no.2
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• pp.77-84
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• 2004

The purpose of this experiment was to determine the effects of di(2-ethylhexyl) phthalate(DEHP) on reproductive characteristic, blood hematological and chemical values in mice. The male mice were intraperitoneally injected DEHP in negative control(no treatment), positive control(corn oil, 3ml/kg B.W), 0.5, 1.0 and 10.0mg DEHP/kg B.W and the female mice were injected DEHP in control(corn oil, 3ml/kg B.W), 0.5, 1.0 and 10.0mg DEHP/kg B.W with 5 times for 15 days on 3 days interval. The administration of DEHP in male mice were not affect on body weight, epididymis, vesicular gland and coagulating gland weight. The testis weight were slightly higher in DEHP treatment groups than in control. The semen characteristics(sperm concentration, viability, motility and abnormality) of male mice were not difference in all experimental groups. The RBC, Hb, HT, MCV, MCH, MCHC< PLT, albumin, BUN and total protein of blood hematological and chemical values were not affect the administration of DEHP in mice. The WBC values in 10.0mg DEHP group was slightly difference in all experimental group(P>0.05). The histological evaluation of testis, ovary and affevt the reproductive characteristic, blood hematological and chemical values.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.48 no.3
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• pp.262-266
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• 2003

The present study was carried out to investigate the relationships among intertillage and muddying by free-ranging ducks (Chinese native ducks) and pH, dissolved oxygen of irrigation water, and physicochemical properties of soil. Two paddy fields comprised of the muddying (muddy water without physical stimulation to a rice plant by the ducks) and the control plots (no ducks) were used for this study. As a muddying plot, 50 hills were randomly selected and each hill was fenced with a wire net in order to prevent from stimulating physically by the ducks. The variation in irrigation pH was smaller in the muddying plot than the control plot, and the pH was around 7.4. Dissolved oxygen was significantly higher (P＜0.01) in the muddying plot than the control plot during the first half period after the ducks were introduced. Then it decreased rapidly as the rice plants grew in all plots. The contents of the suspended soil and turbidity in irrigation water were not changed over the free-ranging period, but $\textrm{NH}_3\textrm{-N}$ and $\textrm{P}_2\textrm{O}_5$ were decreased by intertillage and muddying by the ducks. There were no differences in both the soil physics and chemistry between the muddying plot and the control plot during and after finishing of the free-ranging period. These results indicate that intertillage and muddying by the ducks resulted in a small variation in stagnant water pH, and reduced the dissolved oxygen and $\textrm{P}_2\textrm{O}_5$, although the physiochemical properties of soil were not changed.

• The Korean Journal of Malacology
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• v.25 no.2
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• pp.113-119
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• 2009

Artificial induction of maturation by heating of the hard clam, Meretrix petechiails (Lamarck) broodstock was investigated from 25 May to 30 June in 2008. We experimented maturation by keeping the breeding water temperature at 20, 25 and $30^{\circ}C$ and as the natural water temperature and found the following results. In case of the female, maturation was the quickest in the experiment group of $30^{\circ}C$ and the maturation tended to be slower as the water temperature was lower. The similar trend was displayed among the male. At experiment completion, maturation induction rate was found to be the highest at 46.0% in the experiment group of $30^{\circ}C$ followed by 35.0% in the experiment group of $15^{\circ}C$, 18.0% in the experiment group of natural water temperature and 12.0% in the experiment group of $20^{\circ}C$. During the period of the experiment, the survival rate was of 90% or more in all groups.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.34 no.6
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• pp.588-593
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• 2001

Rockfish (Sebastes schlegeli) juveniles were fed with the diets containing 0 (control and sham), 5, 10 and 15 ppm of 3,5,3'-triiodo-L-thyronine ($T_3$) for 50 days to assess the effect of the hormone on the change of physiological condition, growth and survival rate, fish were fed the commercial diet by hand to satiation 2 times per day. After 50 days, food intake, feed efficiency, thyroid cell height (TCH), abnormality, proximate body composition, growth, condition factor and survival rate were also examined. The food intake and the feed efficiency of S. schlegeli fed with diet containing 10 ppm of $T_3$ was significantly higher than those of fishes fed with the other diets. On the final day of experiment, atrophy of thyroid gland was observed in fish administered with 10 and 15 ppm of $T_3$. $T_3$increased slightly the abnormality according to the increase of $T_3$dose. The whole body proximate analyses indicated that the fishes administrated with 15 ppm of $T_3$ were the highest in protein content and were the lowest in lipid, but in ash content were there a significant effects of $T_3$. The growth of S. schlegeli fed with a diet containing 10 ppm of $T_3$ was significantly higher than that of control. The condition factor was not related to administered $T_3$ content. $T_3$ slightly improved the survival rate of juvenile S. schlegeli, and the survival rate of fish administered with 10 ppm was significantly higher than that of sham-control but was lower than that of control.

• Development and Reproduction
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• v.8 no.2
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• pp.85-89
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• 2004

This study is illustrated that 1) the effects of DEHP administration on body weight, sex ratio and litter size on 19 days in the prenatal period 2) the effects of reproductive organ weight and blood hematological values on 25 days postpartum in pregnant mice. DEHP was administrated to pregnant mice by intraperitoneal injection at 0, 0.5, 1.0 and 10.0mg/kg B.W from day 1 to day 16 in the gestation period with 5 times at 3 days interval. There were no significantly differences in the material body weight, litter size and sex ratio on 19 days in the prenatal period. The body weight of the fatal male mice was slightly lower in 1.0 and 10.0mg DEHP groups than in any other groups. The reproductive organ weight and hematological values in dam mice on 25 days postpartum were not affected by DEHP administration. The histological evaluation of ovary in dam mice on 25 days after dilivery was not different in all experimental groups, but the endometriosis and edema of uterus in dam mice were significantly decreased in 0.5mg DEHP group than that of control group.These results indicate that the administration of low concentration of DEHP was not affected on reproductive characteristic and blood hematological values in pregnant mice.