플륨 모니터링에 의한 SM45C 레이저 용접특성 평가

유영태,김재열,노경보,양동조,오용석,임기건,김지환 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.6

With the increased use of lasers in industrial welding applications, techniques for monitoring and controlling these processes become increasingly important. It is very important that we understand the dynamic behaviors of the laser induced plume in welding because the laser induced plume has considerable effects on welding efficiency and the quality of materials. As the plume fluctuation was associated with keyhole instability, unstable vapor plume indicated the process was unstable and would result in poor welds. An Infrared Themal-vision Camera can be utilized compensate for incurracies encountered in real-time monitoring during laser welding. We have results that instabilities of plume are closely dated with hot cracking and defect of laser welding.

胎元飮의 效能 및 加減法에 관한 文獻的 考察

金東珍,柳同烈 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.10 No.2

According to the literatural study on the utility of TaeWonEum, the results were as follows 1.TaeWonEum is the prescription originally registered on Zang Jie Bin's <Jing-Yue-Quan-Shu> and because of the dificiency of the renmai, the chongmai in women, it is made for the discomfort of the pregnancy 2.On the treatment of miccarriage, they were used to the methods of tonification qi and blood, tonificating insufficiently, making flesh, eliminating wind, tonificating the spleen, clearing heat, eliminating stagnat blood, tonificating blood, growing zhang qi, etc but it is almostly used to the method of tonificating qi and blood 3.TaeWonEum is used on the purposes of tonificating the spleen and stomach, qi and blood, on the case of both the discomfort of the pregnancy by the dificiency of the renmai, the chongmai in women, and the insufficiency of fetal growth by the difficiency of the spleen and stomach, qi and blood 4.The symptoms can be used which are the fetal problem of incipient pregnancy, quickening, lumbago, distension, pallor, weakness of the mind, dizziness, cold, anorexia 5.The additional methods of TaeWonEum are as follows when much turbid enuresis is concerned, Disscoreae Rhizoma, Psoraleae Fructus, Schizandrae Fructus can be added when a patient is very difficient of qi, Atractylodis Macrocephalae Rhizoma is doubled and Astragali Radix can be added when a patient is often vomiting with asthenia-cold, Typhae Pollen can be added when a patient has fever and weak, Scutellariae Radix or Rehmanniae Radix can be added and Eucommiae Cortex can be subtracted when a patient has the colicky pain because of the difficiency of yin, Lycii Fructus can be added when a patient is at a great rage and qi is ascending, Cyperi Rhizoma or Amomi Fructus can be added when a patient has hemorrage with trauma, Dipsaci Radix, Asini Gelatinum can be added when a patient's vomiting can not be reduced, Pinelliae Rhizoma, Zingiberis Rhizoma Recens can be added

적외선 열화상 카메라를 이용한 Plume 형상에 따른 Nd:YAG 레이저 용접 결함 평가

김재열,유영태,양동조,송경석,노경보 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1

In Nd:YAG laser welding, evaluation methods of welding flaw are various. But, the method due to plume shape is difficult to classification of welding flaw. The Nd:YAG laser process it known to have high speed and deep penetration capability to become one of the most advanced welding technologies. At the present time, some methods are studied for measurement of plume shape by using high-speed camera and photo diode. This paper describes the machining characteristics of SM45C carbon steel welding by use of an Nd:YAG laser. In spite of its good mechanical characteristics, SM45C carbon steel has a high carbon contents and suffers a limitation in the industrial application due to the poor welding properties. In this study, plume shape was measured by infrared thermal camera that is non-contact /non-destructive thermal measurement equipment through change of laser generating power, speed, focus. Weld was performed on bead-on method. Measurement results are compared as two equipments. Here, two results are composed of measurement results of plume quantities due to plume shape by infrared thermal camera and inspection results of weld bead include weld flaws by ultrasonic inspector.

혈액투석 환자에서 대퇴신경범증으로 발현된 장골근 및 요근 농양 1예

이준상,강동구,신상열,윤재호,조영일,고성은,유영범,전혜정,진춘조,송종오 대한신장학회 2004 대한신장학회잡지 Vol.23 No.1

七葉一枝花의 抗腫瘍 效果

李鎬在,金東熙,柳同烈 대전대학교 한의학연구소 2001 한의학연구소 논문집 Vol.10 No.1

To evaluate the antitumor activity of Paridis Rhizoma(PR), studies were done experimentally. The results were obtained as followe: 1. In cytotoxicity against MCF-7, SK-OV∼3, HCT15, concentration inhibiting cell growth up to below 50% of control was recognized at 100-200㎍/㎖ of PR and also against A549, XF498 was recognized at 50-100㎍/㎖. 2. In Inhibitory effect on activity of DNA topoisomerase I, the IC^50 was shown 50-100㎍/㎖ of PR. 3. The concentration inhibiting adhesion of A549 and SK-OV-3 to complex extracellular matrix up to below 50% of control was recognized at 10-100㎍/㎖ of PR. 4. The T/C% was 137.9 in PR-treated group in S-180 bearing ICR mice. From above results it was concluded that PR could be usefully applied for the prevention and treatment of cancer.

女性 不妊의 原因에 關한 文獻的 考察

金殷燮,柳同烈 대전대학교 한의학연구소 2000 한의학연구소 논문집 Vol.9 No.1

According to the literatural study on the causes of Infertility in women, the results were as follows. 1.The causes of Infertility in women were arranged scholarly thoery during to Jin-Yuan era(金·元 時代) from Huang-Di-Nei-Jing(黃帝內經), and literatures after Ming-Qing era(明·淸 時代) divided and added one's own thoery since they choose preceding thoery. 2.In the Modern Medicine, the causes of Infertility in women are divided the product obstruction of Oocyte, the union obstruction of sperm and oocyte by abnormality of vagina, cervix, corpus, fallopian tubes, pelvic, and peritoneum, Endocrine factor, Immunologic factor, and Emotion factor. 3.In the Oriental Medicine, the causes of Infertility in women are attached importance to functional side as 'asthenia-cool of uterus'(子宮虛寒), 'deficiency of vital energy and blood'(氣血虛), 'deficiency of yin'(陰虛), 'impairement of seven emotion'(七情傷), 'disease of extra mierdians'(寄經病), and so forth; while on the other in the Modern Medicine, the causes of Infertility in women are attached importance to organic side as abnormality of uterus and ovary. 4.In the successive literatures, 'asthenia-cool of uterus'(子宮虛寒) occupied most frequency in the causes of Infertility in women and in the next obesity(體肥), 'deficiency of vital energy and blood'(氣血虛), menstrual irregularity(月經不調), 'deficiency of yin'(陰虛), 'impairement of seven emotion'(七情傷), emaciation(體??), 'disease of extra mierdians'(奇經病), and so forth occupied much frequency. 5.In the bodily form, obesity(體肥) and emaciation(體??) occupied comparatively more frequency.

치어기 조피볼락 사료내 구기자 첨가효과

임동규 ( Dong Kuy Lim ),유광열 ( Kwang Yeol Yoo ),신동건 ( Dong Gun Shin ),김종응 ( Jong Eung Kim ),배준영 ( Jun Young Bae ),배승철 ( Sung Chul C. BAI ),이정열 ( Jeong Yeol Lee ) 한국수산학회 2009 한국수산과학회지 Vol.42 No.3

A 8-week feeding trial was conducted to investigate the effects of dietary supplementation of Kugija (Lycium chinense) on the growth and immunological response in juvenile Korean rockfish (Sebastes schlegeli). Six experimental diets were supplemented with Kugija at 0, 0.1, 0.5 1.0, 3.0 and 5.0% (K0, K0.1, K0.5, K1.0, K3.0, K5.0) on a dry-matter basis. After 2 weeks, triplicate groups of 30 fish initially averaging 3.36±0.2 g (mean±SD) were randomly distributed into the aquarium and were fed one of the experimental diets for 8 weeks. By the end of the 8-week feeding trial, fish fed the K0.5 and K1.0 diets exhibited a higher weight gain and specific growth rate than fish fed K0 and K0.1 diets (P<0.05). Feed efficiency of fish fed the K0.5 diet showed significant higher value than that of fish fed the K0, K3.0 and K5.0 diets (P<0.05). Hepatosomatic index of fish fed the K5.0 diet was significantly higher than that of fish fed the K0.1 and K5.0 diets (P<0.05). Hematocrit of fish fed the K0.5, K1.0 and K5.0 diets was significantly higher than that of fish fed the K0 diet (P<0.05). Glutamic oxaloacetic transaminase of fish fed the K0.5, K1.0, K3.0 and K5.0 diets was significantly lower than in fish fed the other diets (P<0.05). Glutamic pyruvic transaminase activity of fish fed the K3.0 diet was significantly lower than those of fish fed the K0 and K0.1 diets (P<0.05). However, there was no significant difference in the activity of the transaminase in fish fed the K0.5 K1.0, K3.0 and K5.0 diets. Lysozyme activity of fish fed the K0.5 and K1.0 diets was significantly higher than that in fish fed the K0 and K0.1 diets (P<0.05). Respiratory burst activity of fish fed the K3.0 diet was significantly higher than those of fish fed the K0 and K0.1 diets (P<0.05). However, there was no significant difference in respiratory burst activity of fish fed the K0.5 K1.0, K3.0 and K5.0 diets. Fish fed Kugija showed lower early mortality than fish fed a Kugija-free diet upon challenge with Vibrio ordalii. The results suggest that feeding of Kugija (Lycium chinense) enhances growth, non-specific immunity and disease resistance in juvenile Korean rockfish.

고해상도 항공영상의 대규모 산림지역 항공삼각측량 방법 대한 연구

송동열(Dong-Yeol Song),권오섭(Oh-Seob Kwon),유동원(Dong-Won Yoo),유세종(Se-Jong Yu) 대한공간정보학회 2014 한국공간정보학회 학술대회 Vol.2014 No.11

무선 통신 기반 해수식 기화기 운영 상태 모니터링 시스템 개발

유승열(Seung-Yeol Yoo),전민성(Ming-Sung Joen),이재철(Jae-Chul Lee),강동훈(Dong-Hoon Kang),김동건(Dong-Goen Kim),이순섭(Soon-Sup Lee) 대한조선학회 2022 大韓造船學會 論文集 Vol.59 No.5

Effects of a Pre-Filter and Electrolysis Systems on the Reuse of Brine in the Chinese Cabbage Salting Process

Dong-Ho Kim,Jae Yeol Yoo,Keum-Il Jang 한국식품영양과학회 2016 Preventive Nutrition and Food Science Vol.21 No.2

In this study, the effects of a pre-filter system and electrolysis system on the safe and efficient reuse of brine in the cabbage salting process were investigated. First, sediment filter-electrolyzed brine (SF-EB) was selected as brine for reuse. Then, we evaluated the quality and microbiological properties of SF-EB and Chinese cabbage salted with SF-EB. The salinity (9.4%) and pH (4.63) of SF-EB were similar to those of control brine (CB). SF-EB turbidity was decreased (from 0.112 to 0.062) and SF-EB residual chlorine (15.86 ppm) was higher than CB residual chlorine (0.31 ppm), and bacteria were not detected. Salinity (2.0%), pH (6.21), residual chlorine (0.39 ppm), chromaticity, hardness, and chewiness of cabbage salted with SF-EB were similar to those of cabbage salted with CB. The total bacterial count in cabbage salted with CB was increased as the number of reuses increased (from 6.55 to 8.30 log CFU/g), whereas bacteria in cabbage salted with SF-EB was decreased (from 6.55 to 5.21 log CFU/g). These results show that SF-EB improved the reusability of brine by removing contaminated materials and by sterilization.