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재첩, Corbicula fluminea의 저질선택성 및 잠입율
강경호(Kyoung Ho Kang),양호철(Ho Chul Yang) 전남대학교 수산과학연구소 1999 수산과학연구소논문집 Vol.8 No.-
In order to investigate the effect of sediment preference of the marsh clam, Corbicula fluminea, and burrowing rate on growth the shell(spat and adult) reared in the tank of the laboratory culture different size(below 0.10 ㎜, 0.11~0.50 ㎜, 0.51~1.00㎜, 1.01~2.00 ㎜, 2.01~5.00 ㎜ and blank). The higest value in both sediment preference and survival rate of C. fluminea were shown at fine sand below 0.10 ㎜ in the mean diameter. In the burrowing rate experiment to the sediment depth, spat and adult of C. fluminea were mostly distributed from 5 ㎝ to 10 ㎝.
노재규(Jackyou Noh),양호철(Ho-Chul Yang),임남원(Nam-Won Lim) 대한조선학회 2012 대한조선학회 학술대회자료집 Vol.2012 No.5
Improvement of utilization of ship hull block assembly jigs is one of the main issues of ship hull assembly factory. Block leveling system can be a possible solution to solve the problem. However experience-based system development approach can not guarantee the success of system development, especially under the lack of system development experience. In order to improve the consistent understanding of the ship hull block leveling system and the possibility of success for the system development, the axiomatic design method to design the system is adopted. In this paper the independence axiom, one of two principal axioms of axiomatic design theory, is applied to system development as an design criteria. Using design matrix, sequence of design parameters compatible with the independence axiom is determined and independent components of block leveling system is revealed. As a result of axiomatic design, system configuration related to the design sequence is developed. In order to verify and validate the developed block leveling system, test with real hull block leveling work in site by using total station which is used to acquire three dimensional coordinate of target point is performed. Comparison with measured data and output data from the block leveling system shows the system accuracy is under 1 mm.
노재규(Jackyou Noh),양호철(Ho-Chul Yang),임남원(Nam-Won Lim) 한국해양환경·에너지학회 2012 한국해양환경공학회 학술대회논문집 Vol.2012 No.5
Improvement of utilization of ship hull block assembly jigs is one of the main issues of ship hull assembly factory. Block leveling system can be a possible solution to solve the problem. However experience based system development approach can not gummartee the success of system development especially under the lock of system development experience. In order to improve the consistent understanding of the ship hill block leveling system and the possibility of success for the system developent the acciomtic design method to design the system is adopted. In this paper the independence acciom one of two principal acioms of acciomatic design theory is applied to system development as an design critera. Using design matric sequence of design parameters compatible with the independence aciom is determised and independent components of block leveling system is revealed. As a result of aciomatic design system configuration related to the design sequence is developed. In order to verily and validate the developed block leveling system, test with real hill block leveling work in site by using total station which is used to acquin three dimensional coordinate of target point is perormed. Comparison with measured data and output data from the work block leveling system shows the system accuracy is under 1 mm.
전라남도 지역에서 생산된 천일염의 염도 및 중금속 함량
이강덕,박정욱,최차란,송현우,윤수경,양호철,함경식,Lee, Kang-Deok,Park, Jeong-Wook,Choi, Cha-Ran,Song, Hyun-Woo,Yun, Su-Kyoung,Yang, Ho-Chul,Ham, Kyung-Sik 한국식품영양과학회 2007 한국식품영양과학회지 Vol.36 No.6
전남지역에서 생산된 천일염의 안전성에 대한 기초자료를 제공하기 위해 전남의 주 생산지에서 생산된 천일염 433 종을 대상으로 NaCl 함량 및 중금속(Pb, Cd, As, Hg) 함량을 조사하였다. NaCl 함량은 대부분 80%대 수준이었으며 전체의 63%의 천일염이 $80{\sim}85%$ 함량을 보여 가장 높은 분포를 나타내었다. Pb은 77%의 시료에서 검출되지 않았고 Pb이 검출된 천일염은 모두 기준치인 2 ppm 이하로 나타났다. Cd은 78%의 시료에서 검출되지 않았으며 3곳을 제외하고는 대부분 기준치 이하로 검출되었다. As는 4종의 시료에서만 검출되었는데 모두 기준치에 못 미치는 0.1 ppm 이하로 나타났고, Hg은 모든 천일염에서 검출되지 않았다. NaCl 함량과 Pb 농도는 지역별로 차이를 보였고 Cd, As, Hg은 지역간에 차이가 나타나지 않았다. 따라서 전남에서 생산된 천일염은 생산 지역 간의 다소의 차이는 있으나 중금속오염에 대하여 안전한 수준인 것으로 평가되었다. To assess the safety of solar salts of Jeollanamdo province where most of Korean solar salts are produced, 433 samples of solar salts in total were collected and analyzed for their contents of sodium chloride and heavy metals (lead, cadmium, arsenic and mercury). Sodium chloride contents ranged from 80 to 85% in 63% of solar salts analyzed. Lead was not detected in 77% of solar salt samples and showed a value of below the maximum permissible limit (2 ppm) in other samples. Cadmium was not detected in most samples (78%), and the other samples where cadmium was detected showed a value far below the maximum permissible limit (0.5 ppm) except for three ones. Arsenic was detected in only four samples, but their concentrations were far below the permissible limit (0.1 ppm). Mercury was not detected in all samples. There were some differences between producing areas in the levels of sodium chloride and lead of solar salts, but the contents of cadmium, arsenic and mercury did not show significant regional differences. These results clearly indicate that solar salts produced from Jeollanamdo province are safe in the aspects of lead, cadmium, arsenic and mercury contents.
야콘(Polymnia sonchifolia)의 건조 잎과 줄기 및 후숙된 괴근의 화학성분
이범수,이진철,양호철,정동식,은종방 한국식품저장유통학회(구 한국농산물저장유통학회) 2002 한국식품저장유통학회지 Vol.9 No.1
야콘(Polymnia sonchifolia)의 식품가공에의 적용 확대를 위해 그것들의 신선한 잎, 줄기, 괴근과 건조 잎과 줄기 및 후숙 후의 괴근의 화학적 성분들을 조사하였다. 수분함량은 신선한 잎의 경우 83.38%에서 건조 후 18.08%이었고, 줄기의 경우 92.30%에서 건조 후 27.97%로 크게 감소하였으며, 괴근의 경우 신선한 것은 89.52%이었으나 후숙 후 86.99%로 수분 감소가 적게 나타났다. 잎의 지방, 단백질, 가용분, ascorbic acid, chlorophyll과 tannin의 함량은 줄기보다 더 많았다. 생괴근과 후숙괴근에서 단백질은 모두 0.04%, 지방은 각각 0.31%, 0.43%, 회분은 각각 0.40%, 0.42%, ascorbic acid 는 각각 2.77 ㎎/100 g와 2.87 ㎎/100 g로서 큰 차이를 보이지 않았다. 주요한 무기성분은 잎, 줄기, 괴근에서 모두 P, K, Mg이었다. 유리당은 잎, 줄기, 괴근 모두 glucose와 fructose가 주요한 성분을 이루고 있었으며, 괴근에서는 모든 당이 후숙 후 크게 증가하였다. 유리아미노산은 모든 시료에서 isoleucine의 함량이 가장 많았다. β-carotene의 함량은 신선한 잎에서 9.01 ㎍/100 g, 건조잎에서 107.87 ㎍/100 g이었고, 생괴근에서 0.40 ㎍/100 g와 후숙괴근에서 0.55 ㎍/100 g로 나타났다. Chemical composition of fresh and dried leaves and stems and fresh and cured tubers of yacon (Polymnia sonchifolia) was investigated. The moisture content of fresh leaves, stems, and tubers was 83.38, 92.30 and 89.52%, and there of dried leaves and stems were 18.08 and 27.97% and that of cured tubers was 27.97%. The content of lipid, protein, soluble solid, ascorbic acid, chlorophyll and tannin was higher in leaves of yacon than in stems of that. In fresh and cured yacon, the content of protein were 0.04% both of them, of lipid was 0.31 and 0.54%; of ash, 0.40 and 0.42%; of ascorbic acid, 2.77 and 2.87 ㎎/100 g. The major minerals of leaves, stem, and tubers of yacon were P, K, and Mg. The major free sugars of leaves, stem, and tubers of yacon were glucose and fructose and after curing all free sugars of tubers of yacon were increased. The most abundant free amino acid was isoleucine in the leaves, stem, and tubers of yacon. The content of beta-carotene was 9.01 ㎍/100g in fresh leaves and 107.87 ㎍/100 g in dried leaves, and 0.40 ㎍/100 g in fresh tubers of yacon and 0.55 ㎍/100 g in cured tubers.