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윤호섭 한국콩연구회 1990 韓國콩硏究會誌 Vol.7 No.2
Soybeans is one of the main source of proteins in Korean diets, and, therefore, is called $quot;meat produced at upland. Soybean is used not only for food consumption directly, but also far processing of tofu, sousauce, soybean-made milk, and so on. That is the use of soybean fear, food has been diversified with a development of soybean processing technology and expansion of processing industry, causing a steadily increasing trend of soybean demand since 1970s. The soybean demand for fedgrain has been also greatly increased with an increasing consumption of livestock and dairy products. Therefore, the objective of this study is to understand the mechanism of soybean market, and to forecast consumption of soybean and soybean-related products, production and impork demand. The basic approact used is the econometric estimation of simultaneous equation system which is based on the major behavioral and economic relations. The estimation result shows that soybean import demand continues to increase under any scenario, with an increasing trend of comsumptions.
Effect of light intensity on first feeding of the chub mackerel Scomber japonicus larvae
윤호섭,황재호,최상덕 한국통합생물학회 2010 Animal cells and systems Vol.14 No.2
This study investigated the effect of different light intensities on first feeding of chub mackerel Scomber japonicus larvae. Fertilized eggs, obtained from LHRHa-induced spawning of captive broodstock, were stocked (60 larvae/l)into twelve 30-l aquaria under light intensities of 0, 100, 200, 500 and 1000 lx, with three replicate aquaria per treatment. Temperature was maintained at 20℃ and salinity was 35 psu. Larvae were fed the rotifer Brachionus rotundiformis at a density of five rotifers/ml. Feeding incidence was measured as the percentage of larvae with prey in the digestive tract. Feeding intensity was evaluated as the number of prey in the digestive tract of the larvae. Larvae fed in darkness (0 lx) had significantly lower (PB0.05) feeding incidence (13±0.05% larvae with prey) and feeding intensity (1.00±0.05 rotifers per larva) than those larvae fed at 100 (30±0.07%, 1.17±0.09 rotifers per larva), 200(43±0.08%, 1.24±0.11 rotifers larva -1), 500 (53±0.08%, 1.48±0.14 rotifers per larva) and 1000 lx (60±0.08%,1.38±0.13 rotifers per larva). The feeding incidence of S. japonicus larvae increased with light intensity while feeding intensity showed no significant difference (P>0.05) between light treatments.
Length-weight Relationships for 19 Fish Species in Sargassum Beds of Gamak Bay, Korea
윤호섭,최상덕 한국수산과학회 2010 Fisheries and Aquatic Sciences Vol.13 No.3
Length-weight relationships were estimated for 19 fish species in sargassum beds of Gamak Bay: Aulichthys japonicus, Pseudoblennius cottoides, Pseudoblennius percoides, Ditrema temmincki, Acanthogobius lactipes, Chaenogobius heptacanthus, Cryptocentrus filifer, Pterogobius elapoides, Pterogobius zonoleucus, Hyporhamphus sajori, Hexagrammos agrammus, Rudarius ercodes, Lateolabrax japonicus, Pholis crassispina, Pholis nebulosa, Scomber japonicus, Sebastes inermis, Ernogrammus hexagrammus, and Takifugu niphobles. Samples were caught by surrounding net at depths of <7 m between November 2007 and June 2008. The most abundant families were Gobiidae (26.3%), Cottidae (10.5%), and Pholididae (10.5%). Estimates for parameter b of the length-weight relationship (W=aLb) ranged between 2.491 and 3.354.
HMM 인식기 상에서 방향, 속도 및 공간 특징량에 따른 제스처 인식 성능 비교
윤호섭,양현승 한국정보과학회 2003 정보과학회논문지 : 소프트웨어 및 응용 Vol.30 No.6
본 논문은 카메라로부터 획득된 영상 시퀀스로부터 얻어진 제스처 궤적 정보를 바탕으로 가장 기본적인 방향, 속도 및 공간 특징을 추출한 후, 각각의 특징 정보들의 인식 결과를 비교하여 어떠한 정보가 가장 유용한지 평가한다. 이를 위해 제스처 궤적 추적을 위해선 컬러 정보 및 모션 정보를 사용하였고, 인식모델로는 시간 데이타 처리에 적합한 HMM을 구성하였다. 실험을 위한 제스처 DB로는 인식하고자 하는 그래픽, 숫자, 알파벳모양의 48개 제스처에 대해 20명으로부터 5개씩 총 4800개의 데이타를 구축하였다. The objective of this paper is to evaluate most useful feature vector space using the angle, velocity and location features from gesture trajectory which extracted hand regions from consecutive input images and track them by connecting their positions. For this purpose, the gesture tracking algorithm using color and motion information is developed. The recognition module is a HMM model to adaptive time various data. The proposed algorithm was applied to a database containing 4,800 alphabetical handwriting gestures of 20 persons who was asked to draw his/her handwriting gestures five times for each of the 48 characters.
한국 남해산 바지락, Ruditapes philippinarum의 연령과 성장
윤호섭,안윤근,김선탁,최상덕 한국패류학회 2011 The Korean Journal of Malacology Vol.27 No.1
Growth and age of the Short-necked, Ruditapes philippinarum were collected from Goheung coast in Korea. Relative growth equations among SL, SH, SW and TW of Ruditapes philippinarum were ranged from 0.8059 to 0.8859. The ring radius were estimated from a von Bertalanffy method with the values of SL_(1.58) = 12.51 ± 2.55 mm, SL_(2.58) = 20.27 ± 3.08 mm, SL_(3.58) = 26.90 ± 2.49 mm, SL_(4.58) = 31.35 ± 3.62 mm, SL_(5.58) = 35.45 ± 3.54 mm, SL_(6.58) = 38.78 ± 4.04 mm. Back calculated total weight at the formation of annual ring on the shell of Ruditapes philippinarum with the values TW_(1.58) = 0.35 g, TW_(2.58) = 4.62 g, TW_(3.58) = 5.84 g, TW_(4.58) = 6.71 g, TW_(5.58) = 7.50 g, TW_(6.58) = 8.14 g. Growth curves for shell height and total weight fitted to the von Bertalanffy equation were expressed as:SL_(t)= 51.01(1-e^(-0.1738(t+1.07)TW_(t) = 11.65(1-e^(-0.1738(t+1.07))2.9519 전라남도 고흥해역의 바지락을 채집하여 연령과 성장에 대하여 조사하였다. 각장에 대한 각고, 각폭, 전중량의 상대성장식에서 상관계수 (r²)는 0.8003-0.9053의 범위로 비교적 높은상관관계를 나타났다. 윤문의 평균 윤경은 SL_(1.58) = 12.51 ± 2.55 mm, SL_(2.58) = 20.27 ± 3.08 mm, SL_(3.58) = 26.90 ± 2.49 mm, SL_(4.58) = 31.35 ± 3.62 mm, SL_(5.58) = 35.45 ± 3.54 mm, SL_(6.58) = 38.78 ± 4.04 mm로 나타났으며, 평균전중량은 TW_(1.58) = 0.35 g, TW_(2.58) = 4.62 g, TW_(3.58) = 5.84 g, TW_(4.58) = 6.71 g, TW_(5.58) = 7.50 g, TW_(6.58) = 8.14 g로 나타났다. Bertalanffy 성장식을 구한결과는SL_(t)= 51.01(1-e^(-0.1738(t+1.07)TW_(t) = 11.65(1-e^(-0.1738(t+1.07))2.9519로나타났다.