• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.335-336
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• 2014

기존의 게임들이 젊은 연령대가 주를 이뤘다면, 2012년 출시된 '애니팡'은 게임을 부정적으로 바라보던 중장년층까지 흡수하면서 모바일게임의 대중화를 이뤄냈다. 하지만 그 인기가 현재까지 지속되지는 않는다. 그 이유로는 세 가지 정도로 요약되는데, 첫번째는 쉽게 질려 버릴 수 있는 단순한 게임방법이며, 둘째는 지인과의 순위경쟁의 긴장감을 지인이 떠나버리면서 잃어버렸기 때문이다. 마지막으로 세 번째는 게임의 불안정성과 더불어 스팸'하트'메시지의 스트레스이다. 반면에 성공요인으로는 첫 번째는 진입장벽의 용이성, 둘째는 친근감과 현대인들의 생활패턴에 접근 가능한 게임 환경, 셋째는 생활정서에 밀착된 '적절한 긴장감' 이라고 할 수 있다.

• Proceedings of the Optical Society of Korea Conference
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• 2003.02a
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• pp.106-107
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• 2003

본 연구에서는 고속 보정이 가능한 적응광학 시스템의 제어장치를 개발하였다. 개발된 장치는 윈도우즈 환경의 개인용 컴퓨터 상에서 구성하였으며, 원거리에서도 유선을 이용하여 안정적으로 제어하기 위하여 통신방식에 기초하여 제어알고리즘을 구성하였다. 개발된 적응광학 시스템의 전체 구성도는 그림 1과 같으며, 윈도우즈 환경의 개인용 컴퓨터와 변형거울, 기울기거울, 하트만 센서 및 간섭계로 구성되어있다. (중략)

• 정보보호뉴스
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• s.136
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• pp.48-51
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• 2009

금년 들어 미국의 신용카드 결제처리업체인 하트랜드 시스템즈(Heartland Payment Systems)에서 사상 최악의 신용카드 정보 유출 사건이 발생했으며, 이로 인한 금융 피해금액이 수억 달러에 이를 것으로 추산되고 있다. 이 회사는 매달 1억건에 달하는 신용카드 거래를 처리한다고 하니 그 유출된 개인 금융정보의 양은 상상을 초월할 것으로 보인다. 이렇게 유출된 정보는 카드복제, 신용도용 등 쉽게 예상할 수 있는 범죄 이외에도 어떠한 형태의 범죄로 당사자들에게 피해가 되돌아 올 지는 가늠하기 어렵다. 최근 국내에서 발생한 일련의 개인정보 유출사건과 마찬가지로 정보화와 개인정보보호 문제에 경종을 울리는 또 하나의 사건이라 하겠다.

• Journal of Advanced Navigation Technology
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• v.21 no.5
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• pp.491-500
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• 2017

This paper investigates a low cost dual modular redundancy system based on heartbeat which can be applied to traffic control signal system. Failure of the traffic control signal system can cause traffic confusion and traffic accidents. Therefore safety and reliability of traffic control should be secured using fault tolerance technology. To do this, we configured a redundant board using the open source hardware and the heartbeat technique of Linux HA. The function of the traffic signal control system was verified and the fault recovery time was measured using fault injection test. As a result of the test, the fault recovery time was confirmed to be less than 9 seconds on average, confirming that the reliability target time is satisfied. Based on the results of this study, it is expected that it can be applied to fields requiring high reliability systems such as aviation, space, and nuclear power embedded systems.

• Trans-
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• v.1
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• pp.141-166
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• 2016

France owns a unique film production process with the big share of public funding. In its background there is the most developed film support scheme in the world. We consider the French film industry has the fair competition order than any other country. This study follows the French film production process from the project planning to film screening. It looks into various aspects French cinema: production scale of French films, investment/production agreement, actors casting, decision of the film budget, major investors, staffs' wages and collective convention, screening, overseas sales and profit-sharing. It aims to get across the French film industry, especially the film production sector. As a case study, we choose a romantic comedy, Heartbreaker(L'Arnacœur) made in 2010. This study presents a French film industry structure. It will give you some hints to reconsider the existing problems of Korean film industry, for example, screen monopoly, vertical integration of conglomerates, poor secondary market, low earnings rate… etc.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.2
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• pp.257-263
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• 2008

We have examined explosion characteristics of bituminous coal dusts in cement manufacturing process. In order to find the thermal properties, we investigated weight loss and ignition temperature of coal materials using TGA and DSC. Also specific surface area of dust was investigated. Dust explosion experiments with Hartman's dust explosion apparatus have been conducted by varying concentration and size of coal dust for explosion probability and lower limit explosion concentration. According to the results for thermal properties, there is a little change by dust size. However, the specific surface area of dust is increased by decreasing dust size. The explosion test results show that small size and increasing concentration of dusts make dust explosion easier. And we find that the lower limit explosion concentration of bituminous coal is $0.3mg/cm^3$ and the probability is 100% on $0.9mg/cm^3$ in 170/200 mesh used in cement manufacturing process.

• Korean Journal of Optics and Photonics
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• v.19 no.1
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• pp.1-8
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• 2008

Shack-Hartmann sensors are widely employed as a wavefront measuring device in various applications. Adaptive optics is one of the major applications. Since an adaptive optics system should be operated in real-time, high-speed wavefront sensing is essential. In high-speed operation, integration time of an image detector is very short. In this case, noises such as readout noise and photon noise greatly influence the accuracy of wavefront sensing. Therefore a fast and noise-insensitive centroid finding algorithm is required for the real-time wavefront sensing. In this paper, the multi-resolution correlation method is proposed. By employing multi-resolution images, this method greatly reduces the computation time when compared to the fast Fourier transform (FFT) correlation method. The verification is performed through the computational simulation. In this paper, the center of mass method, correlation method and multi-resolution correlation method are employed to compare the measurement accuracy of the centroid finding algorithms. The accuracy of a Shack-Hartmann wavefront sensor using the proposed algorithm is proved to be comparable to that of the conventional correlation method.

• Cross-Cultural Studies
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• v.21
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• pp.53-86
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• 2010

This paper is focused on splitting of the first Soviet theatre, MKhAT and collapse of Soviet theatre. A close attention has been paid to Art Theatres's circumstances leading to splitting, critical conscience about division between ideal and real theatres and other concrete situation before the verge of collapse. Administrative reform of the Soviet theatre at the period of Perestroika and Glasnost', its results and conflicts, occurred in the process of transition into market system. These are considered under the premise of that the problems of MKhAT were not so different to the other soviet theatres at that time. As it is known that Moscow Art Theatre is a symbol of Russian theatre. And the status of MKhAT as a symbol of Russian theatre had formulated not only the well-known Stanislavsky' system and his legendary performance The Seagull, Three Sisters etc. It was made by party's effort to make MKhAT as the first Soviet theatre and by directors, artists and critics, they had believed and tried to protect idea of MKhAT as the 'battlements' of Soviet theatrical art. One of them is O. Yefremov, a former leader and artistic director from 1970 to 2000. Actually from the periods of Sovremennik Yefremov knew that does not exist the ideal MKhAT, excepting myths, legends and administrative attitudes. Nonetheless he chose the duty of MKhAT's artistic director to construct ideal MKhAT, theatre as the best moral institution, theatre as union based on common belief. It is same motive that he had led split of MKhAT. But split of theatre did not bring the expected results. After spliting MKhAT has become almost collapsed under collapse of USSR and subsequent turmoil at 1990's. And as soviet theatre disappeared into history, Russian theatre became lost its special significance, the super-theatre's idea.

• Korean Journal of Breeding Science
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• v.40 no.1
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• pp.76-79
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• 2008

A new rose cultivar, 'Pure Heart' was selected from the progenies of a cross between 'Saphir' and 'Crystal Line' at the Gyeonggi-Do Agricultural Research and Extension Services in 1998. It was finally selected in 2002 after evaluation trials for three years (2000-2002). 'Pure Heart' was developed for a standard-type cut flower. 'Pure Heart' has some good agricultural and marketing traits. 'Pure Heart' has good qualified flower of which color is fair bright pink, 6.8cm in flower diameter and 4.5cm in flower height. 'Pure Heart' produce $122stems/m^2$ in a year, and has 45 petals per flower. The length of cut flower was long with 66.0cm. Vase life of the cultivar could be as long as 8 days. Futhermore marketing-quality was good in some aspects. The cultivar was applied for a variety protection in 2004 and was released to commercial growers in 2005.

• Environmental and Resource Economics Review
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• v.30 no.2
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• pp.347-364
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• 2021

Carbon neutral policy in Korea pays limited attention to the concept of sustainable economic growth. This limitation can be compared with other countries' carbon neutral policies such as US, UK and China where the climate change policies are closely connected to economic policies to boost further economic growth. This paper adopts a Ramsey growth model to account for the impact of carbon neutral policy on long-term economic growth and the accumulation capital. The model incorporates the Hartwick rule to allow sustainability of economic growth by transforming resource input into other input factor for growth. The analysis provides a possibility of low accumulation of capital as a result of carbon neutral policy in the absence of effective transformation of fossil-fuel factor into growth-related productive capital. Such low capital stock can be more aggravated when there exists a rent-seeking behavior of various interest groups with voracity to exploit social capital.