유압 부품의 데미지 분석을 통한 마모수명예측 방법에 관한 연구

김성훈(S.H. Kim),홍예선(Y.S. Hong),김종혁(C.H. Kim) 유공압건설기계학회 2020 유공압건설기계학회 학술대회논문집 Vol.2020 No.7

Construction machinery companies are increasing the required life to improve product competitiveness. Accordingly, hydraulic component companies are also conducting many studies to improve the product life and reliability. However, studies on the wear life prediction method are very insufficient, while fatigue life can be predicted relatively easily based on the S-N curve of the material. Therefore, this paper defined the damage analysis method using PV-T map for each material pair based on the fatigue damage analysis method. In addition, the defined wear damage analysis method was verified by analyzing the wear life of the actual sample CUP data. In the future, it is expected that the reliability of products can be enhanced through the analysis of wear damage analysis to strengthen the competitiveness of products.

D2EHPA 에 의한 아연의 추출 및 분리

김성훈,김종화,이성식 ( S . H . Kim,J . H . Kim,S . S . Lee ) 한국화학공학회 1995 화학공학의이론과응용 Vol.1 No.2

유전 및 육종 : 돼지경제형질의 육종가 추정에 있어 다형질 및 단형질동물모형의 비교

김시동(S . D . Kim),박화춘(H . C . Park),서강석(K . S . Seo),김성훈(S . H . Kim),박영일(Y . I . Park) 한국축산학회 1996 한국축산학회지 Vol.38 No.4

This study was conducted to compare multiple with single trait animal models in estimation of breeding values of average daily gain, backfat thickness and age at 90㎏ of swine. The data were obtained from 2,877 heads of Landraces tested at the S. Swine Breeding Farm in Kyunggy Province. The heritabilities used to estimate breeding values of average daily gain, backfat thickness and age at 90㎏ were 0.29, 0.45 and 0.40, respectively. The correlation between breeding values estimated by multiple traits animal model and by single trait animal model for average daily gain, backfat thickness and age at 90㎏ were 0.977, 0.996 and 0.996, respectively. The rank correlation of breeding values estimated by multiple traits and single trait animal model for average daily gain, backfat thickness and age at 90㎏ were 0.975, 0.996 and 0.995, respectively. Single trait animal model can be used availably in case that it is difficult to use multiple traits animal model to estimate breeding value due to large data set, hardship in estimating heritability, unknown genetic correlation and environmental correlation and other reason, single trait animal model can be used.

대두근류 추출물의 첨가에 의한 rhizobium japonicum의 비공생적 질소고정

김성훈,이윤,김창진,유익동,민태익,Kim, S. H.,Rhee, Y.,Kim, C. J.,Yoo, I. D.,Mheen, T. I. 한국미생물학회 1986 미생물학회지 Vol.24 No.2

Soybean nodule extract was prepared and tested for the effectiveness in the induction of asymbiotic nitrogen fixation of R. japonicum P-168. A Asymbiotic nitrogenase activity was increased over twice when glutamate was replaced by nodule extract in the induction media. Independently of the induction media, the nitrogenase activity in the assay media was also enhanced by the addition of nodule extract ($100-400{\mu}g$ protein/ml). The amount of ethylene in the assay media reached the highest point after 8 days incubation of R-168 and was decreased thereafter. The growth of R. japonicum R-168 was sensitive to the concentration of nodule extract. As a while, the effect of soybean root extract was not detected both in the induction of nitrogenase activity and in the growth of R. japonicum R-168.

중소형 일체형원자로 SMART의 유체계통 설계

김성훈,박천태,Kim, S.H.,Bak, C.T. 한국전산구조공학회 2008 전산구조공학 Vol.21 No.2

삼중 혼합 냉매 R407C의 핵비등 열전달 특성에 관한 실험적 연구

김성훈,곽경민,배철호,정모,Kim, S.H.,Kwak, K.M.,Bai, C.H.,Chung, M. 대한설비공학회 1997 설비공학 논문집 Vol.9 No.3

The nucleate boiling heat transfer experiments are performed using a ternary refrigerant R407C which is a candidate of alternatives of HCFC 22. The boiling phenomena for R-32, R-125, and R-134a which are the constituent refrigerants of R407C are also investigated to give the foundation of theoretical research for the mixture component boiling. The nucleate boiling heat transfer coefficients of R407C is less than those of HCFC 22 which has the similar physical and transport properties. Since the experimental results show the deterioration of boiling heat transfer coefficients of ternary mixture refrigerants R407C, the boiling heat transfer coefficients of R407C cannot be obtained by the linear combination of boiling heat transfer coefficients from its constituent components R-32, R125, and R134a.

Alaska 산 아역청탄의 액화시 유화분산촉매효과

김성훈,한춘,윤왕래,이인철 ( S . H . Kim,C . Han,W . L . Yoon,I . C . Lee ) 한국화학공학회 1995 화학공학의이론과응용 Vol.1 No.2

돼지에 있어 유두수에 대한 유전모수의 추정

서강석,김성훈,박영일 ( K . S . Seo,S . H . Kim,Y . I . Park ) 한국축산학회 1996 한국축산학회지 Vol.38 No.2

유전 및 육종 : 다형질 애니멀 모델에 의한 돼지 경제형질의 유전모수 추정

서강석(K . S . Seo),김성훈(S . H . Kim),박영일(Y . I . Park) 한국축산학회 1996 한국축산학회지 Vol.38 No.3

Genetic parameters for economic traits of swine were estimated on the basis of the data from 16,021 head of Duroc, Landrace and Large White boars and gills tested at the S. Swine Breeding Farm in Kyunggy Province from 1985 to 1994 according to the multiple traits animal model using DF-REML. The estimates of the heritabilities of the backfat thickness for the male and female were 0.29 and 0.46 in Durocs, 0.54 and 0.60 in Landraces and 0.62 and 0.43 in Large Whites. The estimates of the heritabilities of the average daily gain for the male and female were 0.33 and 0.22 in Durocs, 0.25 and 0.31 in Landraces and 0.30 and 0.21 in Large Whites. The estimates of the hetitabilities of the age at 90㎏ for the male and female were 0.40 and 0.26 in Durocs, 0.43 and 0.42 in Landraces and 0.39 and 0.25 in Large Whites. The genetic correlation of backfat thickness with average daily gain, age at 90㎏, estimated for Duroc males in this study were 0.40 and -0.31, respectively and that between average daily gain and age at 90㎏ was -0.76. The genetic correlation of backfat thickness with average daily gain, age at 90㎏, estimated for Duroc females in this study were -0.07 and -0.04, respectively and that between average daily gain and age at 90㎏ was - 0.86. The genetic correlation of backfat thickness with average daily gain, age at 90㎏, estimated for Landrace males in this study were 0.03 and -0.01, respectively and that between average daily gain and age at 90㎏ was -0.74. The genetic correlation of backfat thickness with average daily gain and age at 90㎏, estimated for Landrace females in this study were 0.12 and -0.14, respectively and that between average daily gain and age at 90㎏ was -0.86. The genetic correlation of backfat thickness with average daily gain, age at 90㎏, estimated for Large White males in this study were 0.21 and -0.15, respectively and that between average daily gain and age at 90㎏ was -0.76. The genetic correlation of backfat thickness with average daily gain, age at 90㎏, estimated for Duroc males in this study were 0.13 and -0.11, respectively and that between average daily gain and age at 90㎏ was -0.82.

대요크셔종과 랜드레이스종간 상반교잡이 돼지의 복당산자수와 복당체중에 미치는 효과

박영일(Y . I . Park),이수찬(S . C . Lee),김성훈(S . H . Kim) 한국축산학회 1995 한국축산학회지 Vol.37 No.5

The reciprocal crosses between Large Yorkshire and Landrace were compared for the litter size and litter weight on the basis of the data from 4,250 litters of pigs furrowed at the S. Swine Breeding Farm from January, 1986 to June, 1993. The Y×L cross produced by Landrace darns was significantly heavier than the L×Y cross produced by Large Yorkshire dams by 1.61±0.18 ㎏ for the litter weight at birth and by 5.17±0.64 ㎏ for the litter weight at 3 weeks. The Y×L cross had larger litter size at 3 weeks of age by 0.18±0.09 than the L×Y cross, but the difference between the reciprocal cross was statistically insignificant for the litter size at birth. The superiority of Y×L cross over the L×Y cross in the litter weight at birth was significantly reduced in the 9th parity and later as compared to other parities, which reflected the significant interaction between reciprocal crossing arid parity for this trait. The effect to of parity, year of birth and month of birth were also estimated.