• The Journal of the Korea Contents Association
• /
• v.14 no.2
• /
• pp.48-59
• /
• 2014

This study examines the characteristics in melodramas by comparing three major television broadcasting companies(MBC, SBS, and KBS) since 2000. The findings of the study are as follows: "Romance" melodrama is more common in MBC and SBS, than in KBS, where "family" melodrama is more common. The most cause of conflict shown in MBC is "love between the rich and the poor" that in SBS is "conflict between love and success", and that in KBS is the conflict similar to that between "Ondal the fool and Princess Pyeong-gang". The most common love relationship shown in SBS and KBS is the "single love triangle" and that in MBC is "double love triangle". In the shows of all three TV broadcasting companies, male protagonists most frequently belongs to "jaebeol" (the rich) and female protagonists are "company workers". The most common personality trait of male protagonists' in MBC shows is and "optimism", in SBS shows, it is "supercilious behavior", in KBS, it is "simple-hearted". However, the personality of female protagonists in the shows of all three broadcasting companies can be described as, bright and cheerful. In MBC and SBS, male protagonists were frequently portrayed as capable, and in KBS, as self-conceited. in KBS are the most frequent. Female protagonists in the shows of all three broadcasting companies were most frequently portrayed as hardworking.

• Korean Journal of Materials Research
• /
• v.4 no.3
• /
• pp.253-258
• /
• 1994

The effect of hole size and hole-to-hole distance in the braided and laminated composite was studied in terms of tensile strength, pin bearing strength, and flexural strength of S2-glass fiber braided polyester. The tensile strength reduction with hole size was well fitted with he Whitney and Nuismer's prediction for the laminated composite. The characteristic distance was measured to be about 1.6mm for braided composite and 1.8mm for laminated one. The effect of distance between the centers of two circu lar holes on tensile strength was negligible when the distance between these two holes was larger than 4 times of the diameter of circular hole for both braided and laminated composite. The side effect was diminished when the center of hole was located 3 times farther than the diamet.er of the hole. The pin bearing strengths was decreased with the size of pin hole for both braided and laminated composite.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.46 no.2
• /
• pp.183-189
• /
• 2019

The purpose of this study was to investigate the changes of the position of the mental foramen according to age by using panorama of children with mixed and early permanent dentition. 180 panorama of 6 to 13-year-old boys and girls were analyzed and PiView(Infinitt, Korea) program was used. The horizontal position of the mental foramen was evaluated by the relative position of the teeth. The vertical position of the mental foramen was evaluated by the ratios between the distance from the center of the mental foramen to the inferior border of the mandible and the distance from to the alveolar crest to the inferior border of the mandible. The mental foramen was horizontally located in the anterior aspect of the second primary molar(premolar), and vertically slight below the half of mandibular body. As the age increased, it moved to the posterior and the downward and showed a significant correlation with age.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2011.05a
• /
• pp.416-416
• /
• 2011

최근 하천의 생태성이 강조된 식생, 사석, 목재 등의 자연 재료를 사용하는 친환경적인 호안이 고안되어 시공되고 있다. 이러한 호안들은 홍수시 유실에 따른 안정성의 확보와 생태성을 고려하는 것이 중요하다. 본 연구는 기존에 개발되어진 돌망태호안, 식생호안 및 식생블록호안의 안정성평가 프로그램에 개발한 사석안정성 산정식을 이용하여 사석호안공에 대한 안정성평가를 추가하였다. 각각 호안에서의 밑다짐공의 최대세굴심과 폭의 산정으로 밑다짐공의 안정성평가를 추가하여 호안 안정성평가에 대해 폭 넓은 평가를 제시하였다. 개발된 호안 안정성평가 프로그램에 사석호안공과 밑다짐공의 안정성을 추가하여 김상문, 최흥식(2008)에 의해 Data-Base를 기반으로 개발된 Menu-Driven방식의 호안 안정성평가 프로그램을 개선하였다. 개선을 통하여 호안의 축조는 물론 생태성이 강조된 호안설계에 의한 자연형 하천복원 시에 많은 도움이 될 것으로 기대된다.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.24 no.2
• /
• pp.29-34
• /
• 2024

Since the outbreak of COVID-19, there has been a surge in sports conducted through online platforms due to the increase in remote and non-contact activities. Billiards, being suitable for online platforms, has received much attention, leading to research on detecting the position and trajectory of balls. In this paper, we propose a new method utilizing machine vision to detect the position of the balls accurately. The proposed method detects the outline of the ball using the Canny edge detection and then employs simple correlation to determine its position. This correlation-based approach offers satisfactory system performance and is easily applicable in practical systems due to its low implementation complexity and robustness to noise.

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.8 no.3
• /
• pp.283-287
• /
• 1984

본 연구에서는 가공 원공의 위치 및 내경을 인식할 수 있는 간단한 컴퓨터 시 각 시스템을 개발하였다. 아날로그 영상 자료로 부터 디지탈 자료를 얻기 위한 시스 템은 폐쇄회로 TV 카메로와 제어 회로 및 A/D변환기와 schmitt trigger를 부대한 마이 크로 컴퓨터로 이루어 졌으며 원공을 인식하는 알고리듬은 기울기(gradient) 기법을 이용한 경계법(thresholding)과 최소자승법에 의한 curve fitting으로 구성되어 있다. 개발된 시스템은 real time 방식이 아님에도 불구하고 검사 원공의 위치 및 내경을 영 상해상도의 오차 범위 내에서 실험을 통하여 보였다.

• Proceedings of the Korean Environmental Sciences Society Conference
• /
• 2003.11b
• /
• pp.238-240
• /
• 2003

분포가 확대되어 가고 있는 미국자리공의 서식지 환경요인과 실생의 정착과정을 추적하였다. 그 결과 광 구배에 따라 기온의 차는 크지 않았으나 지온의 일교차는 4월을 제외하고 상대조도에 따라 크게 나타났다. 실생 출현은 100%에서는 61개체, 33%에서는 58개체였지만 8%에서는 5개제로 적었을 뿐만 아니라 출현한 실생도 모두 생존하지 못하였다. 생장은 상대조도 100%에서 가장 높았으며, 8%에서 출현한 개체들은 거의 생장하지 못하였고 줄기직경의 경우는 오히려 감소를 하였다. 따라서 미국자리공의 발아는 8%지역에서도 가능하였지만 광량의 부족으로 인하여 지속적인 물질생산을 할 수없어 생존할 수 없는 것으로 판단된다.

• Journal of Korea Water Resources Association
• /
• v.41 no.4
• /
• pp.445-454
• /
• 2008

Many countermeasures for local scour at bridge piers constructed on the river and sea have been developed and researched to protect piers against local scour. The most commonly employed method is riprap protection, which is sometimes required the filter installation between riprap and base layers. However, the construction of stone filters are really hard to perform in the field, require the high cost, or sometimes are impossible. The experimental modeling is conducted to analyze the riprap failure modes and the stability of riprap protection without filters based on the different approach velocity and riprap layer thickness conditions. Also, the stability index to evaluate the performance of riprap protection is developed using the experimental results. The cover and thickness of the riprap layer play a very important role in the stability and thicker riprap layers can prevent a total disintegration of the riprap layer effectively, especially due to winnowing failure.

• Korean Journal of Plant Tissue Culture
• /
• v.21 no.1
• /
• pp.47-53
• /
• 1994

The effects of light on the production of anthocyanin and betacyanin in cell suspension cultures of Vitis vinifera and Phytolacca americana were investigated. The cell growth of V.vinifera was little affected by exposure to light, but that of P.americana was markedly increased by light than in the dark In suspension cultures of V vinifera maximum accumulation of anthocyanin was observed during the stationary phase in continuous light By contrast, in suspension cultures of R americana, accumulation of betacyanin occured in parallel with cell division which showed two peaks after 4 days and 8 days of culture in continuous light whereas in continuous dark accumulation of anthocyanin and betacyanin did not occured However treatment of light interrupting for l, 12, and 24 h after 4 days in cell suspension. cultures of remarkably showed a slight anthocyanin accumulation, but after 8 days of culture remarkably accumulated by light interrupting for more than 12 h. In cultures of P. americana, the light treatment was more effective at 4th day than at 7th day after culture, but betacyanin accumulation was decreased again in the dark after light treatment These result indicate that the difference of light responses exist between the V.vinifera and the betacyanin of P. americana though cell suspension culture systems.

• 주택과사람들
• /
• no.16 s.33
• /
• pp.106-108
• /
• 1993