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F-Hessian SIFT기반의 철도건널목 영상 감시 시스템
임형섭,윤학선,김철환,유등렬,조황,이기서,Lim, Hyung-Sup,Yoon, Hak-Sun,Kim, Chel-Huan,Ryu, Deung-Ryeol,Cho, Hwang,Lee, Key-Seo 한국전자통신학회 2010 한국전자통신학회 논문지 Vol.5 No.2
철도건널목에서 SIFT 기반의 알고리즘을 사용한 영상 안전감시 시스템을 구축하고 실험을 수행하여 실제 상황에의 적용가능성을 판별하고 테스트하였다. 이를 위해 영상 획득 이후의 관심 지역과 관심 영역 구분, 특징점의 추출에 따른 데이터 매칭을 단계적으로 진행하였다. 또한 실시간 상황에서 동작이 가능하도록 헤시안 방법을 사용한 특징점 추출 방법을 사용한 SIFT와 다른 알고리즘과의 성능을 시험하였다. This paper presents the experimental analysis of a F-Hessian SIFT-Based Railroad Level-Crossing Safety Vision System. Region of surveillance, region of interests, data matching based on extracting feature points has been examined under the laboratory condition by the model rig on a small scale. Real-time system were observed by using SIFT based on F-Hessian feature tracking method and other common algorithm.
Kim, Jin‐,Sung,Yun, Hyung‐,Joong,Seo, Min‐,Woo,Janardhanam, V.,Ahn, Kwang‐,Soon,Choi, Chel‐,Jong John Wiley Sons, Ltd 2012 Surface and interface analysis Vol.44 No.11
<P>We have investigated the effects of the flow rate of O<SUB>2</SUB> annealing ambient on the structural and electrical properties of the emitters with n+/p junctions formed using the screen printing of phosphorus (P) dopant paste, followed by O<SUB>2</SUB> annealing. The reaction between P‐paste and Si led to the formation of phosphorus silicate glass layer, of which P atoms were mostly segregated in surface and interface regions. The sheet resistance of the screen‐printed n+ emitters formed under O<SUB>2</SUB> flow rate of 5 l/min (LPM) was lower than that of 1 LPM. The recombination mechanism dominated the current transport in the forward bias regions of the screen‐printed n+ emitter, regardless of O<SUB>2</SUB> flow rate. The n+ emitter formed under O<SUB>2</SUB> flow rates of 5 LPM exhibited better rectification behavior with low reverse leakage, as compared with that of 1 LPM. The formation of thicker phosphorus silicate glass film caused by the increase in the O<SUB>2</SUB> flow rate resulted in the increase in the equilibrium concentration of Si interstitials in bulk Si and provided more P atoms being incorporated in n+/p emitter junction. The increases in maximum concentration of P atoms and junction depth caused by the increase in the O<SUB>2</SUB> flow rate could be responsible for superior junction quality of n+ emitter formed under O<SUB>2</SUB> flow rates of 5 LPM. Copyright © 2012 John Wiley & Sons, Ltd.</P>
Jeeva, Subbiah,Kang, Se-Won,Lee, Yong-Seok,Jang, In Kwon,Seo, Hyung Chel,Choi, Tae-Jin M. Nijhoff ; Kluwer Academic Publishers 2012 Virus genes Vol.44 No.1
<P>Hepatopancreatic parvovirus (HPV) of shrimp is distributed worldwide and the entire genome of Thailand and Indian strains (PmDNV) and one Australian strain (PmergDNV) have now been reported. The complete nucleotide sequence of a HPV strain isolated from the fleshy prawn Fenneropenaeus chinensis in Korea (FcDNV) was determined and compared to previously reported sequences. The entire genome of FcDNV contains 6,336 nucleotides, with 40% G+C content, which is the biggest of the known HPV strains. The HPV genome has three open reading frames (ORFs) with a slight overlap between the first and second ORFs. The three ORFs encode the NS2 and NS1 proteins and VP that consist of 425, 578, and 820 amino acids, respectively. Among the three proteins, the NS1 protein shows the highest sequence similarity to the NS1 protein of other known HPV strains, followed by the NS2 protein and the VP protein. Phylogenetic analyses showed that HPV can be grouped into three genotypes, as previously reported, and FcDNV can be grouped as genotype I, with HPV strains isolated in Madagascar and Tanzania. The nucleotide sequences of the noncoding regions at the 5'- and 3'-ends of the plus-strand genome showed a Y-shaped hairpin structure and simple hairpin structure, respectively.</P>
사료 단백질원으로 어분과 대두박 첨가에 따른 어린 흰다리새우 (Litopenaeus vannamei)의 성장 및 체성분 변화
김수경 ( Su Kyoung Kim ),김은지 ( Eun Ji Kim ),박명애 ( Myoung Ae Park ),서형철 ( Hyung Chel Seo ),장인권 ( In Kwon Jang ) 한국수산과학회 2012 한국수산과학회지 Vol.45 No.6
A 4-week feeding experiment was conducted with juvenile white shrimp Litopenaeus vannamei to compare the growth of shrimp fed different protein sources: fish meal (FM) and soybean meal (SM). By the end of the experiment, the shrimp grew to 4.50±0.82 g (FM) and 4.73±0.95 g (SM). The food and protein conversion rates were significant (P<0.05), while other factors did not differ significantly. The survival rate of shrimp fed FM and SM was 96.44±2.04% and 97.33±1.89%, respectively. The proximate compositions of the entire body and edible part of the shrimp were similar between FM and SM, except for crude protein. The total amino acid levels were slightly lower in SM than FM, but the difference was not significant. During the experiment, the total ammonia, nitrate, and nitrite concentrations increased continuously in both groups and were slightly higher in SM than FM. In conclusion, soybean meal as a substitute for fish meal results in satisfactory growth and survival of white shrimp.