• Korean Journal of Remote Sensing
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• v.18 no.4
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• pp.233-242
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• 2002

In this paper, an epipolar model without the ephemeris data is proposed. Also, various epipolar models such as the epipolar geometry of perspective sensor, the one proposed by Gupta and Hartley and the one based on the Orun and Natarajan's sensor model are reviewed and their accuracy are quantitatively analyzed using devised measure. Modeling data from ground control points, ground control points, ephemeris data and independent checking points are selected on SPOT over Taejon and Boryung area and KOMPSAT over Taejon and Nonsan area. Based on the results, the epipolar model of perspective sensor and the one by Gupta and Hartley have the average accuracy within 1 pixel but show high errors in several checking points. The proposed epipolarity model provides better results than that of perspective sensor and by Gupta and Hartley. Also, it shows the accuracy similar to the one based on Orun and Natarajan's sensor model.

• The Journal of the Korea Contents Association
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• v.20 no.8
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• pp.538-546
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• 2020

This study uses a epidemic film that is being re-illuminated due to the recent appearance of COVID-19. In particular, The flu, Train to Busan, and Deranged are representative works of the "Epidemic Genre" in domestic disaster films, and their performance reports are different. Researcher set the pandemic film as one aspect of the genre film, and analyzed and compared three films in terms of three elements of the genre film: formula, convention, and iconography. An important element in the epidemic film was the improvement of reality through 'suspension of suspense' and 'ambiguity in the epidemic setting'. Lastly, Researcher hope the Korean film industry will develop more deeply through the "Epidemic Genre," a new genre of Korean films that has been spotlighted by the COVID-19 incident.

• The Science & Technology
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• v.30 no.11 s.342
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• pp.70-71
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• 1997

기술개발이란 끈질긴 집념과 참신한 아이디어 없이는 이룰수 없다. 1975년부터 5년간 KIST연구실에서 항결핵제 기술개발에 전념하면서 겪었던 에피소드를 소개한다. 당시 가장 비쌌던 항생물질인 항결핵제의 중간원료 3포밀 리파마이신 SV를 국산화하기 위한 프로젝트였는데 모든 연구과정을 끝내고 마무리 결정화하는 과정이 안풀렸으나 어느 일요일 반짝 떠오른 '두가지 용매를 실험해보자'라는 아이디어 하나로 수입품과 같은 시제품을 개발하는데 성공을 거둘수 있었다.

• Korean Journal of Remote Sensing
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• v.18 no.2
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• pp.97-105
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• 2002

In this paper, we proposed a simplified strategy for the epipolarity of linear pushbroom imagery. The proposed strategy is verified on "Gupta and Hartly" sensor model and "Orun and Natarajan" sensor model. It is also compared with the precise epipolarity model of each sensor model on SPOT and KOMPSAT imagery. For the quantitative analysis, 20 ground control points are used as independent checking points. Based on the results, the accuracy of the proposed strategy is not different from that of the precise epipolarity model of each sensor model (below 0.1 pixels). Under the worst circumstance, the proposed strategy is robust. We can assure that the proposed strategy will show high accuracy on most of sensor models based on the co-linearity equations.

• Journal of the Korea Convergence Society
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• v.5 no.2
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• pp.1-6
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• 2014

Latest Smart TV is rapidly increasing in prevalence. Smart-TV can provide reserve-service, training-service, and game service to user. Smart-TV need standard API for user requested app to run it. In this case, the cracker can run Malicious apps or user-request contents to modify it by analysis of the vulnerability of the smart-TV platform. Therefore, we modify the extension API on Smart-TV to prevent hacking. Our proposed research method can support that device is illegal in Smart-TV device can prevent unauthorized access.

• Analytical Science and Technology
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• v.20 no.4
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• pp.308-314
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• 2007

The analytical method of HPLC with the radial-flow electrochemical cell (RFEC) has been developed to determine doxorubicin, epirubicin, nogalamycin, daunorubicin and idarubicin simultaneously by employing a reversed-phase chromatography. Anthracyclines were detected at -0.74 V vs. a Ag/AgCl (0.01 M NaCl) reference electrode, a potential of diffusion current plateau in the mobile phase. At a $V_f$ of 1.0 mL/min doxorubicin, epirubicin, daunorubicin and idarubicin appeared at a retention time ($t_r$) of 6.4 min, 7.4 min, 12.7 min and 18.4 min, respectively, while at a $V_f$ of 0.6 mL/min, doxorubicin, epirubicin, nogalamycin, daunorubicin and idarubicin appeared at a $t_r$ of 9.9 min, 11.5 min, 13.5 min, 19.6 min and 28.7 min, respectively. The linearity between each anthracycline injected ($2.40{\times}10^{-7}M{\sim}1.42{\times}10^{-5}M$) and peak area (charge) was excellent with the square of the correlation coefficient ($R^2$) higher than 0.999. The detection limits were $1.0{\times}10^{-8}M{\sim}1.5{\times}10^{-7}M$ for the five anthracyclines. Within-day precision for the five anthracyclines were in reasonable relative standard deviations less than 3 % ($1.00{\times}10^{-6}M{\sim}1.42{\times}10^{-5}M$) except the lower concentrations less than $0.7{\mu}M$. Solid phase extractions of $1.00{\times}10^{-5}M$ epirubicin, $0.48{\times}10^{-5}M$ nogalamycin and $1.52{\times}10^{-5}M$ daunorubicin from human serum with a $C_{18}$ cartridge resulted in 97 %, 100 % and 90 % of recoveries, respectively.

• The Journal of the Korea Contents Association
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• v.10 no.4
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• pp.141-156
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• 2010

Recently broadcasting production companies have imported a number of broadcast program formats to get ideas quickly and easily. The term format in broadcasting industry is defined as a paper form which includes principal elements throughout each episode of the series in a program to keep consistency. In case of the quiz program titled 1:100 which is being aired in Korea, the domestic company imported the format and produced to broadcast in Korea. In other words, a format includes components of the inherent creative ideas and proposals needed in production a program. The study proposed a web based collaborative system that many users create the format for the broadcast program together. the system is constructed to combine creative ideas to making them a format. Also, production experts will take advantage of the system.