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Location of the Descending Palatine Artery in Relation to the LE Fort 1 Osteotomy in Koreans
( Il Gu Lee ),( Hoon Myoung ),( Soon Jung Hwang ),( Byoung Moo Seo ),( Jong Ho Lee ),( Pill Hoon Choung ),( Myung Jin Kim ),( Jin Young Choi ) 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.2S
운전자의 음성, 영상 및 생체 신호와 차량 상태 정보를 이용한 차량내 기기 조작 의도 파악에 관한 연구
이명구(Myoung Gu Lee),정현빈(Hyeon Bin Jeong),양지현(Ji Hyun Yang),이상헌(Sang Hun Lee) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.8
Recently, to reduce driver"s workload, multimodal user interfaces including voice and gesture recognition functions have been introduced to intelligent vehicles. However, the non-contact input methods are vulnerable to environmental conditions such as noise and light. To enhance their accuracy, in this paper, we proposed a complementary intelligent method to infer driver’s intention for the operation of in-vehicle equipment. To this end, first, on controlling in-vehicle equipment, the driver’s voice, video and physiological signals and the vehicle state information were collected through various sensors and ports of a driving simulator. Next, a set of selected machine learning algorithms including decision tree, Bayesian network, support vector machine, and multilayer perceptron approaches were trained using the collected data. Finally, the most efficient algorithm were selected by comparing their accuracy and performance.
운전자 차선변경 의도 예측을 위한 머신러닝 기법의 최적화
이명구(Myoung Gu Lee),이상헌(Sang Hun Lee) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.8
Preventing false alarms of various warning systems and supporting defensive driving for surrounding vehicles with unexpected maneuvers such as sudden cutting in front of the host vehicle are important for driver"s safety. In this paper, driver"s lane-change behaviors were observed and his lane-change intention was predicted using machine learning algorithms. For this purpose, we measured the driver"s behavior such as eye glance and head rotation, bio-signals such as heart rate, vehicle"s data such as directions and accelerations, and environment data such as road curvature and distances to surrounding vehicles. Then, we optimized a set of the attributes, analyzed the performance of the machine learning algorithms, and selected the most efficient one from them.
Young-su Lee,Eun-hye Ham,Hyun-ju Lee,Myoung-jun Jang,Gu-hyun Jung,Young-cheul Ju,Hee-dong Kim 한국응용곤충학회 2014 한국응용곤충학회 학술대회논문집 Vol.2014 No.04
This study was conducted to develop the biological insect pest control on pear orchard by using the native natural enemy from 2011 to 2013. We selected the green lacewing, Chrysoperla nipponensis (Okamoto) for useful natural enemy and developed the artificial mass rearing technique, and tested finally in pear orchard located in Anseong city. Nine species of insect pests including Pseudococcus comstocki on pear and seven species of natural enemies including C. nipponensis were investigated in Gyeonggi area. The optimum developmental temperature, humidity and photoperiod for C. nipponensis were 20 ∼25℃, 60∼70%, and 16L : 8D respectively. One C. nipponensis during larval stage could feed about 440 2nd nymphs of P. comstocki at 20℃. The more prey density increase, the more feeding amount C. nipponensis larva was increased. The eggs of almond moth, Ephestia cautella were useful as a substitute diet for natural enemy, C. nipponensis. Three commercial insecticides which registered as insecticide on pear shown the low toxicity to natural enemy, C. nipponensis will be suitable for integrated pest management (IPM) in pear orchards. C. nipponensis shown the about 80% of control value against the P. comstocki in field test when had committed from the early May to the early July. Controlling the P. comstocki by using of C. nipponensis, not only the 30% of yield was increased, but also the quality especially fruit sugar was increased.
Jeong Min Lee,Dong-Gu Lee,Sunghun Cho,Jung Jong Lee,Myoung-Hee Lee,Sanghyun Lee 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Acanthopanax species is known commonly as Siberian ginseng, touch-me-not, devil’s shrub, prickly eleutherococc, eleutherococc and wild pepper. A diverse group of chemical compounds isolated from Acanthopanax species was named ‘eleutherosides’. Among eleutherosides, eleutherosides B and E were widely known in Acanthopanax species. Acanthopanax species are cultivated and grow wild in a various area of Korea and have a variety of pharmacological effects. But, there are a lot of difficulties on producing excellent Acanthopanax species, according to the cultivated method is different pharmacological ingredients. This study, therefore, analyzed eleutherosides B and E in A. divaricatus and A. koreanum by different fertilizer ratio using HPLC. We will be investigated a high content of eleutherosides B and E by different fertilizer ratio and suggest an efficient fertilizer ratio of A. divaticatus and A. koreanum. All samples of A. divaricatus and A. koreanum were collected at Yeongcheon Agricultural Technology & Extension Center, Yeongcheon, Korea. The sample was prepared by upper and lower parts. The fertilizer ratio are N-P-K(10.5-8.5-8.5: 50 kg/10a), 2N-P-K (21-8.5-8.5: 50 kg/10a), N-2P-K (10.5-17-8.5: 50 kg/10a), N-P-2K (10.5-8.5-17: 50 kg/10a), and 2N-2P-2K (21-17-17: 50 kg/10a), respectively. To analyze eleutherosides B and E, 5 g of A. divaricatus and A. koreanum was extracted with 50% MeOH (3 × 100 ml) by reflux and evaporated in vacuo. The residue was dissolved in 1 ml of MeOH. The resulting solution was used for HPLC analysis. HPLC separation of eleutherosides B and E for qualitative and quantitative analysis was performed using a reverse phase system. A Discovery®C18 (4.6 × 250 mm, 5 μm) column was used with a mobile phase that consisted of water and acetonitrile. A gradient solvent system of water and acetonitrile (90:10 to 70:30 for 20 min) was used for the elution program. UV detection was conducted at 350 nm. The injection volume was 10 μl and the flow rate was 1 ml/min. All injections were performed in triplicate. The different fertilizer ratio yielded total eleutherosides B and E contents of 4.417-6.905 and 3.652-7.227 mg/g in the upper and lower parts of A. divaricatus, respectively. In A. koreanum, the total eleutherosides B and E contents were 4.591-10.108 and 3.834-9.079 mg/g in the upper and lower parts, respectively. The best conditions to increase eleutherosides B and E content in A. divaricatus was determined to be with N-2P-K fertilizer ratio, on the other hand, in A. koreanum was 2N-2P-2K fertilizer ratio.