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로봇 머니퓰레이터의 기구학 제어를 위한 연관사상 학습제어기
정재욱,국태용,이택종 成均館大學校 科學技術硏究所 1997 論文集 Vol.48 No.1
In this paper, two specially designed associative mapping memories, called Associative Mapping Elements(AME) and Multiple-Digit Overlapping AME(MDO-AME), are presented for learning of nonlinear functions including kinematics of robot manipulators. The proposed associative mapping memories consist of associative mapping rules(AMR) and weight update rules(WUR) which guarantee generalization and specialization of input-output relationship of learned nonlinear functions. Two simulation results, one for supervised learning and the other for unsupervised learning, are given to demonstrate the effectiveness of the proposed associative mapping memories.
Taek Jong Lee,Hoang Minh Chau,To Thi Thu Ha,Gi Hwan Yi,Dong Jin Park,Hyun-Soon Kim,Nahm Su Kim,Choon Keun Park,Weon Dae Cho 한국국제농업개발학회 2012 韓國國際農業開發學會誌 Vol.24 No.3
본 연구는 베트남 하노이 지역에서 8가지 한국 토마토 품종 (핑크탑, 큐피랑, 슈퍼도태랑, 선레드, 선글러브, TP-7 플러스, 러블리 250, 광복)과 1가지 베트남 품종(FM 120)을 대상으로 봄-여름 및 가을-겨울 작기에 따른 수확량 및 과실 특성을 비교 분석하였으며, 그 결과는 다음과 같다. 1. 작기에 따라 초장, 경장, 주당 과실수 및 수확량(kg)은 유의성이 있었으며 가을-겨울 작기에서 높게 나타났다. 전체적으로 한국품종이 베트남 품종에 비해 높은 생육특성을 보인 반면, 과실수와 수확량에서는 베트남 품종이 우수하였다. 2. 토마토 과실의 주요 특성인 과장, 과폭 및 과중은 작기에 따라 유의한 차이를 보였으며 가을-겨울 작기에서 높은 수치를 나타내었지만 TSS 함량은 봄-여름 작기에서 높았다. 건물중과 비타민C 함량은 작기에 따라 유의한 차이가 없었다. 품종별 과실 특성은 한국 품종이 우수하였지만 비타민C 함량은 베트남 품종이 높았다. 3. 봄-여름 작기에서 한국품종의 경우 수확량 및 과실특성에서 가을-겨울 작기 재배에 비해 큰 감소를 보인 반면 베트남 품종은 큰 차이를 보이지 않았다. 따라서 본 실험에 이용된 8가지 한국 품종의 경우 봄-여름 작기보다는 가을-겨울 작기 재배가 적합할 것으로 판단된다. This study was conducted to investigate the yield and fruit characteristics of Korean tomato (Lycopersicon esculentum Mill.) cultivars in two different cropping seasons (February 2011 to February 2012) in Hanoi, Vietnam. The experiment was arranged in a completely randomized block design, with three replications. Eight Korean cultivars, specifically, ‘Pink Top’, ‘Kyupirang’, ‘Super Dotaerang’, ‘Sun Red’, ‘Sun Glove’, ‘TP-7 Plus’, ‘Lovely 250’, and ‘Gwangbok’, and one Vietnamese cultivar, ‘FM 120’, were transplanted in an open field in March (spring-summer) and October (fall-winter) of 2011. The cropping season significantly affected the plant height (cm), stem diameter (mm), fruit (no.) and total yield (kg) per plant, fruit length (cm) and width (cm), fruit weight (g) per plant, and total soluble solids (TSSs, °Brix). However, the dry weight (%) and vitamin C (mg/100 g) content showed no significant differences in the different cropping seasons. The highest values for the growth and fruit characters of tomato appeared during the fall-winter season, whereas the highest TSSs (4.8 oBrix) was observed in the fruit harvested during the spring-summer season. The Vietnamese cultivar ‘FM 120’ showed highest values of fruit per plant (33.8), total yield (3.6 kg), and vitamin c content (13.9 mg/100 g) for both cropping seasons. However, the highest values for the plant height, fruit length, fruit width, and fruit weight were observed in the Korean cultivars. Therefore, the fall-winter cropping season is recommended as the optimum season for enhancing the fruit yield and characteristics of Korean tomato cultivars under the environmental conditions of Hanoi in Vietnam.
Chang Taek Oh,Jong Il Park,Yi Ra Jung,Yeon Ah Joo,Dong Ha Shin,Hyoung Joo Cho,Soo Mi Ahn,Young-Ho Lim,Chae Kyu Park,Jae Sung Hwang 고려인삼학회 2013 Journal of Ginseng Research Vol.37 No.4
Korean Red Ginseng (KRG) has been reported to exert anticancer, anti-oxidant, and anti-inflammatory effects. However, there has been no report on the effect of KRG on skin pigmentation. In this study, we investigated the inhibitory effect of KRG on melanocyte proliferation. KRG extract (KRGE) at different concentrations had no effect on melanin synthesis in melan-A melanocytes. Saponin of KRG (SKRG) inhibited melanin content to 80% of the control at 100 ppm. Keratinocyte-derived factors induced by UV-irradiation were reported to stimulate melanogenesis, differentiation, proliferation, and dendrite formation. In this study, treatment of melan-A melanocytes with conditioned media from UV-irradiated SP-1 keratinocytes increased melanocyte proliferation. When UV-irradiated SP-1 keratinocytes were treated with KRGE or SKRG, the increase of melanocyte proliferation by the conditioned media was blocked. Granulocyte-macrophage colony-stimulating factor (GM-CSF) was produced and released from UV-irradiated keratinocytes. This factor has been reported to be involved in regulating the proliferation and differentiation of epidermal melanocytes. In this study, GM-CSF was significantly increased in SP-1 keratinocytes by UVB irradiation (30 mJ/cm2), and the proliferation of melan-A melanocytes increased significantly by GM-CSF treatment. In addition, the proliferative effect of keratinocyte-conditioned media on melan-A melanocytes was blocked by anti-GM-CSF treatment. KRGE or SKRG treatment decreased the expression of GM-CSF in SP-1 keratinocytes induced by UVB irradiation. These results demonstrate that UV irradiation induced GM-CSF expression in keratinocytes and KRGE or SKRG inhibited its expression. Therefore, KRG could be a good candidate for regulating UV-induced melanocyte proliferation.
백혈구 표면 특이 단클론항체를 이용한 유방염 저항성우군 및 감수성우군의 면역세포 분석
주이석,문진산,김종택,서국현,위성환,남향미,박용호 한국수의공중보건학회 2001 예방수의학회지 Vol.25 No.4
To investigate the disease defense system on mastitis of the dairy cows, proportions of lymphocyte subpopulations were examined using a set of MAbs specific to bovine leukocyte different molecules and flowcytometry in mastitis-resistant cows group and mastitis-susceptible cows group. The proportion of lymphocyte subpopulations of leucocyte seperated from milk and blood of these two groups were compared and analyzed. The results were as follows. Mean MHC-class Ⅱ DP-like, DQ, DR cells percentage of milk were 78.5%, 59.8%, and 68.0% in mastitis-resistant group, 31.2%, 31.2%, and 21.6 % in mastitis-susceptible group, respectively. There were significant differences between the two groups (p<0.05). The percentages of BoCD2+ and BoCD4+ T cells of milk and blood in mastitis-resistant group were both higher than those of mastitis-susceptible group. Especially in milk, the percentages of BoCD2 and BoCD4T cells were higher in resistant group cows (38.2%, 27.9%) than those of susceptible group cows (13.0%, 7.7%) (p<0.05). Mean B lymphocyte percentage of milk was 31.6% in resistant group and 15.7 % in susceptible group. The percentages of N lymphocyte of milk and blood were 10.1%, 6.0% in resistant group and 3.4%, 2.3% in susceptible group, respectively (p<0.05). Mean ratio of the BoCD4+/BoCD8+ T cells of milk and blood in resistant group cows were far higher than those of susceptible group cows. In milk and blood, it was 3.2, 2.5 in resistant group cows, and 0.42, 0.15 in susceptible group cows, respectively.
유방염 저항성우군 및 감수성우군의 백혈구 탐식능과 γ-Interferon 생성능
주이석,문진산,김종택,서국현,위성환,남향미,박용호 한국수의공중보건학회 2001 예방수의학회지 Vol.25 No.4
This study was carried out to investigate the funcion of immune cells in the cow groups of mastitis-resistant and mastitis-susceptible. The somatic cell counts were 9×10^4 SCC/ml and 4.4×10^5 SCC/ml in bovine mastitis-resistant and -susceptible cows, respectively. Phagocytic activity in both opsonized and unopsonized groups was lower in mastitis-susceptible cows than those of mastitis-resistant cows. To compare the mitogen-induced lymphoblastogenesis in blood between the matitis-resistant group and the -susceptible group, we used ConA, PHA and PWM as mitogens. There were no significant differences between the two groups. We also measured and compared the productivity of γ-interferon after stumulation of whole blood by ConA and PHA in these two groups of cows. The resistant group produced more γ-interferon than the susceptible group. This study indicated that the function of immune cells was more active in mastitis-resistant group cows compared to the mastitis-susceptible group cows.