• 한국양식학회지
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• 제9권3호
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• pp.287-291
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• 1996

유도된 자성발생성 2배체를 친어로 양식어민에게 보급하고 유전적 동형접합제를 생산하기 위해 제 2세대 자성발생성 2배체를 유도하였다. 제 1세대 자성발생성 2배체의 성숙과 산란은 광주기와 HCG 처리로 유도하였을 때, 부상률은 $22.9\~65.7\%$의 범위로 나타났으며, 수정률은 $69.0\~86.2\%$, 그리고 부화율은 $36.8\~85.8\%$의 범위로 나타나 제 2세대 자성발생성 2배체군과 대조군 간에는 유의적 차이가 없었다(P>0.05). 제 2세대 자성발생성 2배체의 생존율은 부화 후 40일까지 부화 자어수의 약 $30\%$로 대조군에 비하여 $15\%$ 낮게 나타났다(P<0.05). 평균 전장 3 cm 이후에 선발육종을 실시한 결과 평균 전장 4 cm 이후에 대조군에 비하여 급격히 성장함이 관찰되어 부화 후 100일째에는 평균 전장이 대조군이 10.0 cm, 제 2세대 자성발생성 2배체는 15.4 cm로 나타나 통계적으로 유의하였다(P<0.01).

• 한국지하수토양환경학회지:지하수토양환경
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• 제21권3호
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• pp.6-13
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• 2016

The effect of blast oxygen furnace (BOF) slag used as filling materials on the soil environment was studied using column tests that simulated the flow of the BOF slag leachate through the soil layer. The Cu, Mn, Zn, Ni, and F contents of the leachate affected soil were similar to that of the controls (i.e., soils that were not affected by the leachate). The As, Cd, and Pb contents were lower in the leachate affected soils than the controls. The changes in these contaminants contents can be attributed to the interactions between anions such as alkalinity generating anions (e.g., CO₃²⁻, HCO₃⁻, OH⁻) or calcium ions with heavy metals or F, which consequently affected the fate of heavy metals and F in the leachate affected soils. The germination and growth of Spinapis alba in the soils affected by the leachate and the controls were also similar. However, the proportion of alkalophilic bacteria in the soils affected by the leachate significantly increased, and this can be explained by the increased soil pH due to the alkaline leachate. Overall, this study shows that the alkalinity of the BOF slag leachate, rather than the presence of heavy metals and F in the leachate, needs to be considered when the BOF slag is to be reused as structural filling materials.

• 한국수산과학회지
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• 제47권5호
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• pp.567-576
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• 2014

This study investigated the physiological effects of a diet containing calcium oxide (CaO) on the olive flounder, Paralichthys olivaceus. The results indicate that the amount of calcium in the blood was higher in the calcium group compared with the controls. The aspartate amino transferase (AST) and alanine amino transferase (ALT) levels were lower in the calcium group, while lysozyme activity was higher in the calcium group. Histologically, fish in the calcium group had more hepatocytes in the liver and more intact scales. In addition, an attack experiment using Vibrio anguillarum (KCTC-2711) and Edwardsiella tarda (KCTC-3657) showed that the survival was higher in the calcium group compared with the controls. These results suggest that feeding fish CaO when they require it, such as during periods of gonadal maturation and rapid growth, will increase their immunity and resistance to pathogens.

• 한국식품영양과학회지
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• 제26권3호
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• pp.501-506
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• 1997

As pyridinoline is one of the predominant cross-lins in a mature collagen, pyridinoline formation may be an essential step during the growth process to obtain normal mechanical strength in collagen fibrils. However, the excess formation of pyridinoline in collagen will probably make the tissue stiffer, less soluble and less digestible by enzymes. We investigated the changes of pyridinoline of bone collagen and the role of ascforbic acid(AsA) on the formation of pyridinoline. The pyridinoline content of bone collagen significantly increased during incubation for 1~5 weeks at 37$^{\circ}C$ in vitro. The addition of AsA decreased pyridinoline to half the amount found in controls with 5 week incubation. When dehydroascorbic acid(DHA) and L-2, 3-diketogulonic acid (DKG), the oxidative products of AsA, were supplemented to bone collagen solution instead of AsA, the content of pyridinoline in bone collagen was about 80% or 70% that of controls, respectively. These results suggest that pyridinoline content decreases by the addition of AsA in vitro. Furthermore, it was shown that AsA in oxidized from also affected the formation of pyridinoline.

• Asian Pacific Journal of Cancer Prevention
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• 제14권2호
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• pp.665-668
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• 2013

Endothelial nitric oxide synthase (eNOS), encoded by the NOS3 gene, has been suggested to play an important role in uncontrolled cell growth in several cancer types. The objective of this study was to evaluate the role of the NOS3 Glu298Asp polymorphism in bladder cancer susceptibility in a Turkish population. We determined the genotypes of 66 bladder cancer cases and 88 healthy controls. Genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism analysis. A significant association for NOS3 Glu298Asp heterozygotes genotypes and T allele were found between healthy controls and bladder cancer, respectively (p<0.001: p=0.002). There were no significant associations between any genotypes and the stage, grade, and histological type of bladder cancer. Our study suggested an increased risk role of NOS3 GT genotype in bladder cancer susceptibility in our Turkish population.

• 정보처리학회논문지A
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• 제8A권3호
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• pp.261-268
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• 2001

With the rapid growth of the Internet, various web-based businesses are creating a new environment in an imaginary space. However, this expanding Internet and user increase cause an overflow of transmission and numerous subordinate problems. To solve these problems, a parallel cluster system is produced using different methods. This thesis recommends a multi0distribution cluster group. It constructs a MPP dynamic distribution sub-cluster group using numerous low-priced and low-speed systems. This constructed sub-cluster group is then connected with a singular virtual IP to finally serve the needs of clients (users). This multi-distribution cluster group consists of an upper structure based on LVS and a dynamic serve cluster group centered around an SC-server. It conducts the workloads required from users in a parallel process. In addition to the web service, this multi-distribution cluster group can efficiently be utilized for the calculations which require database controls and a great number of parallel calculations as well as additional controls with result from the congestion of service.

• 한국초지조사료학회지
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• 제32권2호
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• pp.139-148
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• 2012

본 연구는 다양한 수준의 셀레늄함유 청보리 사일리지를 육성기 거세한우에 급여 시 성장특성 및 혈액성상에 미치는 영향을 조사하였다. 시험은 육성기 거세한우 20두 (개시체중 $208.8{\pm}17.9$ kg)를 공시하였고, 처리구는 셀레늄수준과 형태에 따라 4처리구 (셀레늄시비 및 비시비 청보리 사일리지이용 0.1 mg/kg 셀레늄 (대조구), 0.3 mg/kg 셀레늄 (T1), 0.9 mg/kg 셀레늄(T2) 및 무기셀레늄 0.9 mg/kg 셀레늄 (T3)로 나누어 처리구당 5두씩 배치하여, 90일간 사양시험을 실시하였다. 각 시험사료는 셀레늄함유 및 일반 청보리를 조합하여 배합비의 30%를 대체하였고, 무기셀레늄구 (T3)는 대조구사료에 0.9 mg/kg의 셀레늄수준에 상응하는 양의 sodium selenite를 첨가하였다. 사료내 조단백질 및 에너지함량은 처리구간 동일하였다. 사료 내 셀레늄의 수준 및 급여형태에 따라 사료섭취량과 증체에는 영향을 미치지 않았고, 혈중 포도당 농도는 대조구가 T1과 T2구 보다 유의하게 낮았다 (p<0.05). 혈중 총지질농도는 셀레늄수준이 증가할수록 유의하게 낮아져, T2구와 T3구가 대조구 보다 유의하게 낮았다 (p<0.05). LDL-콜레스테롤은 셀레늄급여구가 대조구보다 유의하게 낮았다 (p<0.05). 혈중 중성지방 또한 T2구가 대조구보다 유의하게 낮았다 (p<0.05). 혈중 면역글로불린농도는 셀레늄의 급여로 전반적으로 상승하는 경향을 보였고, 사료 내 같은 셀레늄수준에서 T3구보다는 T2구가 높은 양상을 나타내었다. 혈중 셀레늄농도는 셀레늄함유 청보리 급여수준이 높아짐에 따라 유의하게 증가였으나 (p<0.05), T3구는 대조구와 유의한 차이가 나타나지 않았다. 이상의 결과에서 육성한우에 대한 셀레늄함유 청보리급여는 육성우의 당 및 지질대사에 관여하는 것으로 나타났고, 특히 혈중 총지질 및 LDL-콜레스테롤의 농도를 감소시켰다. 또한 무기셀레늄보다는 청보리 내 존재하는 셀레늄이 장관내에서 더 잘 흡수되는 것으로 나타났고, 이는 육성기 및 어린 성장단계에 있는 거세한우의 면역력을 향상시키는데 도움이 될 수 있을 것으로 판단된다.

• 한국축산식품학회지
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• 제34권5호
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• pp.638-646
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• 2014

The effects of two levels (1.4 vs 2.8%) of fresh garlic on lipid oxidation and microbial growth in pork patties were evaluated. Hunter color (L, a, b), pH, thiobarbituric acid reactive substances (TBARS), oxidative volatile compounds, total bacteria and Enterobacteriaceae in the pork patties with or without fresh garlic were measured during storage at $4^{\circ}C$. Addition of fresh garlic decreased redness (a), while increased pH and yellowness (b) values of the fresh pork patties were observed, regardless of the levels added. The TBARS values of the pork patties were increased with the addition of fresh garlic (p<0.05). Similar results were observed in oxidative volatile compounds. A total of 13 volatile compounds were detected in the patties (5 sulfur-containing compounds, including allyl mercaptan, allyl methyl sulfide, diallyl sulfide, methyl-(E)-propenyl-disulfide, and diallyl disulfide, and the 8 other oxidative compounds, including 1-pentanol, hexanal, 1-hexanol, heptanal, (E)-2-heptenal, 1-octen-3-ol, (E)-2-octenal and nonanal). Fresh garlic accelerated development of oxidative products in the pork patties, especially hexanal and the total oxidative volatile compounds. However, the addition of 1.4 and 2.8% of fresh garlic inhibited the growth of total bacteria and Enterobacteriaceae, indicating low total bacterial counts and Enterobacteriaceae than the controls.

• 한국결정성장학회지
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• 제8권1호
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• pp.18-28
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• 1998

초크랄스키 대류에서의 온도진동 억제에 대한 실험 및 수치해석 연구가 수행되었다. 결정봉 회전 가속화기법을 초크랄스키 성장에 적용시키기 위해 결정봉 회전가속도를($\Omega=\Omega_0(1+A sin 2{\pi}ft/t_p)$)로 변화시켰다. 여기서 A는 가진증율, f는 가진주파수인자를 나타낸다. 제어이전에 나타나는 고유한 온도진동 주기 ($t_p$)를 근거하여, 무차원 혼합대류인자($0.217{\leq}Ra/PrRe^2{\leq}1.658$)에 온도진동 감소율을 조사하였다. 또한 제어인자 A와 f에 대한 효과를 조사하였다. 용융유동 내의 온도진동 억제 현상을 이해하기 위해 자오면상에 나타나는 온도 및 와도분포가 면밀히 검토되었다.

• 생약학회지
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• 제48권3호
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• pp.195-201
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• 2017

To develop new therapy for prevention and treatment of hair loss is very important according to increase of the number of hair loss people. The aim of this study was to investigate the hair growth promoting effects of pectin lyase-modified red ginseng extract (GS-E3D). We examined antioxidant and anti-inflammatory effects, human hair dermal papilla cells (HHDPC) proliferation, and testoterone-induced $5{\alpha}$-reductase inhibitory effects. GS-E3D show not only 1,1-diphenyl-2-picryhydrazyl (DPPH) radical scavenging activity and xanthine oxidase inhibitory effects as an anti-oxidant property, but also lip-oxygenase and hyaluronidase inhibitory effects as an anti-inflammatory property. Human hair dermal papilla cells proliferation by GS-E3D was higher than those of minoxidil or finasteride, using the positive controls. Moreover, GS-E3D exhibited $5{\alpha}$-reductase inhibitory activities after stimulating by testoterone. The present results indicate that GS-E3D has a potential to be as an hair growth promoting agent for cosmetic materials.