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임다래 ( Da-rae Lim ),박유리 ( Yu-ri Park ),박선영 ( Sun-young Park ),김혜령 ( Hye-ryung Kim ),박민지 ( Min-ji Park ),구복경 ( Bok-kyung Ku ),나진주 ( Jin-ju Nah ),유소윤 ( So-yoon Ryoo ),위성환 ( Sung-hwan Wee ),전효성 ( Hyo-sung 한국동물위생학회 2018 한국동물위생학회지 (KOJVS) Vol.41 No.1
In this study, we developed a sensitive and specific reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay for rapid visual detection of foot-and-mouth disease virus (FMDV) circulated in Korea. The RT-LAMP was completed in 40 min at 62°C and the results of the assay were directly detected by naked eye without any detection process. The assay specifically amplified all 7 serotypes of FMDV RNAs but not amplified other viral and cellular nucleic acids. The sensitivity of the RT-LAMP was 10<sup>2</sup>, 10<sup>3</sup> and 10<sup>3</sup> TCID<sub>50</sub>/mL for serotype O, A and Asia 1 FMDV, respectively, which was comparable to conventional reverse transcription polymerase chain reaction (RT-PCR) and relatively lower than that of real time quantitative RT-PCR (qRT-PCR). Clinical evaluation of the RT-LAMP using different serotypes of Korean and foreign FMDV strains showed a 100% (35/35) agreement with the results of the RT-PCR and qRT-PCR. These results indicated that RT-LAMP assay developed in this study could be a valuable diagnostic method for FMDV monitoring and surveillance.
조주희(Ju-hee Cho),진주경(Ju-kyong Jin),정재협(Jae-hyup Jeong),임예은(Ye-Eun Lim),정동석(Dong-seok Jeong) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6
In this paper, we propose the robust video signature using log-polar mapping method. To guarantee the similarity between original video contents and modified video contents, we develop the contents region extraction method which uses log-polar transformed video frame images. Contents region is the region where important information is contained. Experimental results showed that the proposed video signature has good robustness and uniqueness, which are the two essential properties of video signatures.
연속 조성 확산 증착 방법을 통한 저항 온도 계수의 튜닝
박지훈 ( Ji-hun Park ),선정우 ( Jeong-woo Sun ),최우진 ( Woo-jin Choi ),진상준 ( Sang-joon Jin ),김진환 ( Jin-hwan Kim ),전동호 ( Dong-ho Jeon ),윤생수 ( Saeng-soo Yun ),천재일 ( Jae-il Chun ),임진주 ( Jin-ju Lim ),조욱 ( Wook Jo 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.3
The low-temperature coefficient of resistance (TCR) is a crucial factor in the development of space-grade resistors for temperature stability. Consequently, extensive research is underway to achieve zero TCR. In this study, resistors were deposited by co-sputtering nickel-chromium-based composite compositions, metals showing positive TCR, with SiO<sub>2</sub>, introducing negative TCR components. It was observed that achieving zero TCR is feasible by adjusting the proportion of negative TCR components in the deposited thin film resistors within certain compositions. Additionally, the correlation between TCR and deposition conditions, such as sputtering power, Ar pressure, and surface roughness, was investigated. We anticipate that these findings will contribute to the study of resistors with very low TCR, thereby enhancing the reliability of space-level resistors operating under high temperatures.