• Journal of Korea Multimedia Society
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• v.16 no.8
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• pp.994-1004
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• 2013

3D stereoscopic cinema emerged as a new dominant media format. In principle, the stereoscopic cinema imitate the vision of the human being has two eyes. The stereoscopic cinema is filmed with 2 connected cameras at the same time and projected these 2 different images. With the stereoscopic glasses, the human being can see the overlapped images as a single 3D stereoscopic image. To make 3D stereoscopic cinema, it is very important to systemize the process of the 3D stereoscopic cinema production and to use the principle of the 3D stereoscopic cinema. This paper investigates the possibilities of the using the 3D stereoscopic principles such as the I.O.D, convergence point, parallax and the 3D comfort zone. Using the principle of the 3D stereoscopic cinema can be the technique of directing the film. Using the example of 3D stereoscopic short film My Birthday, I investigate the main technique of the 3D stereoscopic cinema.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.336-337
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• 2013

전 세계적으로 3D영화 및 디스플레이 기기에 대한 일반인들의 관심이 증가하고 있다. 하지만 편안한 시청영역(Comfort Zone)에서도 3D를 인식하지 못하는 사람들도 적지 않지 않다. 이런 사람들은 "자신의 눈"에 이상이 있는 것도 모른 채 3D 콘텐츠를 멀리하게 되지만, 안과적 조치를 통해 3D영상 시청 시 어지럼증 유발을 상당부분 제거할 수 있다. 기존의 입체시 검사 도구는 왜곡 및 실감정도를 파악할 수가 없다. 이를 세밀하게 측정할 수 있는 3D 콘텐츠 깊이 측정기를 제작하고, 이에 적합한 콘텐츠를 제작하였다. 3D 콘텐츠 깊이 측정기는 기능을 제어하는 콘트롤 부와 콘텐츠를 보여주는 컨벌젼스 룸으로 구성되어 있으며, 장비를 통해 3D 오브젝트의 깊이나 돌출거리와 같은 여러 파라메타들을 측정할 수 있다. 콘텐츠 제작에 대해선, 오브젝트의 위치는 여섯 부분으로 분류하고, 양안시차(disparity)는 $+2^{\circ}{\sim}-3^{\circ}$ 범위에 $1^{\circ}$ 간격으로 6레벨로 구성하였다. 하나의 오브젝트에 대해 서른여섯개의 오브젝트를 제작하였고, 이들의 조합을 통해 다양한 콘텐츠를 구성하도록 했다. 이를 바탕으로, 안간거리 6.5cm를 대상으로 돌출거리를 측정하였다.

• Architectural research
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• v.17 no.3
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• pp.109-115
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• 2015

The dynamic pricing of electricity, where the electricity rate increases in a time zone with a high demand for electricity is typically applied to a building whose power reception capacity is greater than a certain size. This includes the time of use(TOU) electricity pricing in Korea which can induce the effect of reducing the power demand of a building. Meanwhile, a VRF (Variable Refrigerant Flow) system that uses electricity is regarded as one of the typical heating and cooling systems along with central air conditioning (central HVAC) for its easy operation and application to the building. Thus, to reduce power energy and operating costs of a building in which the TOU and VRF systems are applied simultaneously, we suggested a control for changing the indoor temperature setting within the thermal comfort range or limiting the rotational speed of an inverter compressor. In this study, to describe the features of the above-mentioned control and verify its effects, we evaluated the results obtained from the analysis of its operation data. Through the actual measurements in winter operations for 73 days since mid- December 2014, we confirmed a reduction of 10.9% in power energy consumption and 12.2% in operating costs by the new control. Also, a reduction of 13.3% in power energy consumption was identified through a regression analysis.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.3D
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• pp.363-373
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• 2011

With rapid economic development, general demand and interest in surroundings that consist of our lives have grown gradually. In addition, as there has been increased social interest in creating landscape of roads, which considers all important factors from the user's view including accessibility, safety, and psychological stability, efforts to improve quality of roads are required. Therefore it is needed to establish standards on safe and comfort road design based on sensibility satisfaction of road users rather than based on standardized road design guidance from the engineering perspective. To this end, research was carried out to analyze sensibility satisfaction of users about road landscape focused on elements of road cross section in a city. It identified relation between sensibility satisfaction and the elements by using principal and cluster analysis, and the multiple regression models. It also found that user's satisfaction about roads and a road landscape is high with road width (3~5 meters), clear zone (2.2~3.9 meters), road central garden (1.05~1.9 meters), shoulder (0.55~1.43 meters), median (0.65~1.625 meters), the number of travel lanes (2~5), height of trees at the central garden (6.4~15 meters) and height of buildings surrounding roads (18~44 meters or 6~15 floors).

• Asian-Australasian Journal of Animal Sciences
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• v.30 no.5
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• pp.749-754
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• 2017

Objective: The objective of the present study was to investigate the effects of farrowing month (FM), parity and sex on the growth performance of Berkshire swine raised in alternative production systems. Methods: A total of 40 farrowing records from 27 sows and 1,258 body weight (BW) records from 274 piglets collected over a two-year period were used for the analysis. The BWs were recorded at birth, weaning (28 d), 56, 84, 112, and 140 days. Any BW not recorded on schedule was recalculated to conform the days of age among corresponding BW records, using growth curves drawn with polynomial functions whose power was determined by the number of existing observations for each individual. Results: The mean parity (${\pm}$standard deviation) of the sows was $3.42{\pm}2.14$. The sows that farrowed in June had the lowest number of total born with an average of $6.25{\pm}2.22$ piglets per sow. However, the lowest average number of piglets weaned at day 28 was found in sows that farrowed in May, as well as the highest number recorded for the stillborn piglets with an average of 2.67 piglets per sow. Moreover, the smallest increase in weight from birth to weaning occurred in piglets that were farrowed in May, which also corresponds with the average daily gain (ADG) of 0.29 kg and the last recorded weight measurement on day 140 of $41.69{\pm}1.45kg$. Contrastingly, the highest growth rate was found among pigs farrowed in June, with the largest increase in weight of 7.55 kg from birth to weaning, the highest ADG of 0.51 kg from birth to 140 day of age and the highest BW of $74.70{\pm}1.86kg$ recorded on day 140. Conclusion: Pigs farrowed in June also had the least number of piglets that died between birth and weaning. The zone of thermal comfort found in sows reared in indoor confinement systems did not improve the reproductive performance of the sows reared in an outdoor, alternative production system, while the growth performance of the piglets was improved when the ambient temperature was consistently hot or consistently cold.