This study collected and analyzed the fishing process of existing fishing boat and newly built fishing boat by using the video observation methods to understand the improvement of fishing operation efficiency and safety according to the scale change of coastal composite fishing boat. The fishing operation efficiency was calculated by analyzing the frequency of movement, the movement distance and the moving time per basket used in the fishing process to derive the improvement of the newly built fishing boat compared to the existing fishing boat. It was confirmed that the mean frequency of movements decreased to 13.9%, the average moving time decreased to 21.8%, the mean movement distance increased to 20.5% and the movement through the top of gunwale did not occur. Movement of frequency, increased and time according to the fishing operation were directly affected by the width of side passages and the presence or absence of walking obstruction such as bulwark stay, hatch coaming and fishing gears on deck. The results of this study are expected to be used as basic data for redesigning into a safe and efficient coastal composite fishing boat in the future.

목적 : 본 연구는 자폐 범주성 장애 아동을 대상으로 한 자기관찰법 적용이 문제행동의 감소에 영향을 미치는지를 알아보고자 하였다. 연구방법 : 연구대상은 자폐 범주성 장애로 진단받은 초등학교 저학년 아동 3명이었으며, 개별실험연구의 ABA설계를 사용하였다. 연구과정은 총 7주간 12회기로 이루어졌으며, 자기관찰은 자신의 이전 회기 동영상을 편집없이 10분 간 관찰하도록 하였다. 문제행동의 변화는 대상자별로 조작적 정의를 통해 회기별로 측정하였으며, 단축형 코너스 교사용 평정척도를 통해 중재 전·후의 변화를 측정하였다. 결과 : 자기관찰이후 문제행동은 대상자 1은 평균 63.3%에서 평균 22.8%로 감소되었고, 대상자 2는 74.6%에서 44.5%로 감소하였다. 대상자 3은 43.7%에서 31.1%로 감소하여 모든 대상자의 문제행동은 감소하였다. 또한 자기관찰 이후의 데이터가 2표준편차 범위에서 벗어나 유의미한 감소를 보였으며, 단축형 코너스 교사용 평정척도 검사에서 문제행동점수가 감소하여 긍정적인 변화를 보였다. 감소된 문제행동은 추적기간에도 유지되었다. 결론 : 동영상을 이용한 자기관찰은 자폐 범주성 장애 아동의 문제행동을 감소시킬 수 있는 방법이며, 따라서 치료환경과 교실, 가정에서 적절하게 활용하여 중재의 효율을 높일 수 있을 것이다.

For providing a basic data concerning with a fishing deck layout design of a trawler the authors conducted the video observations about the working activities of crews on the deck in the different layout of two Korean coastal large stern trawlers (gross tonnage: 139). The winch of the trawler-A was installed on the aft of the fishing deck and the trawler-B, on the forward of the fishing deck. The work and activities of the deck hands on both trawlers were observed using the CCD (charge coupled device) camera installed on each trawler's deck for one month from August 3, 2010. The video data was analyzed by the hierarchical task analysis (HTA) method. In results, numbers of tasks to require deck hands during the hauling net and the casting net were 25 and 28 for the trawler-A and 27 and 48 for the trawler-B, respectively. The working processes were represented a same in both of the trawlers. Location for controlling the deck machineries, the location installed trawl winch, kinds of deck machineries, crew's custom for using deck machineries were the factor affecting to the number of the task. In the case of the improvement suggested in the results is carried out, the reduction percentages of the number of task in the trawler-A and trawler-B were estimated as 24.5% and 51.3%, respectively. Through this study it was found that the quantitative analysis is possible for the work processes, work methods and the work contents in the trawler. Also the suggestion for improving the fishing deck layout design of the trawler was possible by finding out the factors increasing the number of tasks and removing the tasks. We expect that the results of this paper are used as a basic data for designing the layout of deck machineries in the trawler in the future.

To suggest a standard concerning with the arrangement of bridge equipment, the authors conducted the video observations with 3CCD (charge coupled device) cameras installed on the ceil of the bridge for monitoring the working activities of two bridge teams (the skipper/mate1 and the skipper/mate2) in a Korean coastal large trawler(gross tonnage: 139) for five days from July 30th. 2010 and analyzed of the data. Work elements coded by the work activities were input on the sheet of work analysis by the time unit of 1 sec according to the time occurred. A single work element among the work activities for every 5 minutes was denoted as the number of occurrence. The frequency of equipment usage was limited only in the usage of the equipment. In the case of the navigation and the towing net two ranks were integrated and analyzed. On the other hand, in the case of the casting net and the hauling net, two processes were integrated to as one and then analyzed separately as two ranks. As the results, 15 elements of work was carried out between two bridge teams for the observation; lookout, radar, GPS plotter, fish finder, net monitor, fishing deck, RPM indicator, rudder angle indicator, compass card, for maneuver; steering, ship speed control, trawl winch operation and external communications, paper works and others. It was found that the work load of the skipper per 5 minutes accordance with the navigation, the casting net, the towing net and the hauling net are 20.5 times, 11.9 times, 38.0 times and 9.5 times respectively, the mates are 65.2 times, 66.5 times, 85.7 times and 59.1 times respectively. The radar was shown the highest frequency of the equipment usage and the next was the fish finder, the GPS plotter and the external communications in the case of the navigation. In the case of the towing net the frequency of usage was high the ranking as the radar, the net monitor, the fish finder, the GPS plotter, the steering system and the external communications. In the case of the integrated process both of the casting and hauling net the trawl winch was shown the highest frequency to the skipper and the next was the GPS plotter and the radar, and the steering system was shown the highest frequency to the mate and the next was the radar, the ship speed control system, the GPS plotter, the net monitor and the fish finder.

목적 : 본 연구는 2명의 주의력 결핍 과잉행동 장애(Attention Deficit Hyperactivity Disorder: ADHD) 아동을 대상으로 자신이 과제 수행하는 장면의 동영상 시청이 문제행동과 과제 수행시간 변화에 효과적인지 알아보고자 하였다. 연구 방법 : 독립변인은 아동이 과제 수행 중 문제행동이 10분간 촬영된 동영상 시청으로 설정하였고, 종속변인은 과제 수행 중 (1) 몸 흔들기, (2) 필요 없는 말하기와 (3) 과제 수행시간의 변화로 정하였다. 개별 실험 연구 중 AB디자인을 적용하였고, 기초선과 중재기간에 과제를 수행한 아동의 모습을 촬영하여, 동영상을 시청하도록 한 후,아동의 문제행동발생 빈도와 수행시간을 측정하였다. 결과 : 동영상 시청 후 아동의 문제 행동은 중재 전 보다 감소되었는데, 대상자 1의 경우 몸 흔들기는 평균 11.8회, 필요 없는 말하기는 6.3회 감소되었고, 과제 수행시간도 5분 6초 단축되었다. 대상자 2 역시 몸 흔들기는 평균 11.4회, 필요 없는 말하기는 4.4회 감소되었고, 과제 수행시간도 5분5초 단축되었다. K-CBCL 문제행동도 대상자 1은 3점, 대상자 2는 2점이 감소되었다. 결론 : 동영상 자기 관찰법은 문제 행동에 대한 인식이 부족한 ADHD 아동의 자기 인식을 높여 내적 피드백을 제공해 주므로 아동의 문제행동감소에 효과적이며, 이는 일반 아동에 비해 지연된 과제 수행시간에도 긍정적인 변화가 있음을 확인할 수 있었다. 개별 제작과 다양한 장소에서의 사용이 용이하다는 동영상의 장점을 활용하여 가정과 교육현장에서 자기 관찰법을 적용한 후속연구가 많이 이루어지길 기대해 본다.

Plant penetration by aphids can be monitored electrically by the electrical penetration graph (EPG) technique. To confirm whether some behaviors are correlated to specific graph pattern in EPG, we analyzed the two synchronized data, EPG and video records. We recorded electrical penetration graph (EPG) and behaviors of aphids simultaneously. Then we compared the behaviors of aphids with the recorded EPG waveforms in order to match their visible behaviors and invisible behaviors with stylet. The visible behaviors were categorized for walking, wagging, honeydew production, and reproduction. When the aphids were generally motionless, the EPG denoted feeding-related waveforms (E1, E2, F and G). Whereas, probing waveforms (B and pd) frequently occurred when they were wagging. We aim to present the correlation between observed behaviors and EPG patterns.

The observations of rapid motion of bubbles under water for approximately 50ms or less in high . magnetic fields of 10 T have been carried out successfully for the first time. The observation system constructed is composed of a high-speed video camera, a telescope, a cryostat with a split-type superconducting magnet, a light source, a mirror and a transparent sample cell. Using this system, the influence of magnetic field on the path and shape of single bubbles of O2(paramagnetism) and N2 (diamagnetism) has been examined carefully. Experimental values describing the path are in good agreement with theoretical values calculated on the basis of the magneto-Archimedes effect, despite the effect of magnetism on the bubble. However, no effect of magnetism on the shape of the bubble is observed In addition, the influence of magnetic field on drag coefficient of the bubble is discussed