Various techniques have been developed to monitor insect behavior in the field. Harmonic radar tagging is a promising method of tracking target insects because it can allow efficient detection of the insects with negligible effects on their behavior or physiology. However, availability of the light limits the effectiveness of the method as it is almost impossible to spot an insect in the dark. On the other hand, fluorescent-marking, when combined with strong light source, makes the organisms distinct at night in a non-destructive manner. Therefore, we conducted a field experiment to determine the effectiveness of the combination of the two methods. Riptortus pedestris (Fabricius) adults were marked with both harmonic radars and fluorescent paint. The marked insects were haphazardly arranged and pinned onto trees or the ground in the forest at night. Then, a group of paired researchers, one equipped with a harmonic radar and the other with a hand-held laser, attempted to find R. pedestris within 20 minutes. The detection rate showed a high variance ranging from 40% to 100%. Thus, with a proper training, harmonic radar system combined with fluorescent-marking can be a powerful technique to detect insects in the field. With these equipments, tracking insect behavior in the field will be more efficient in the dark.
To obtain geographical range and growth–kinetics parameters of mottled sake (Beringraja pulchra) populations in the Yellow Sea, three mark–recapture experiments were carried out. Overall, 991 tagged individuals were released, and 4.1% of them were recaptured with the mean release period of 339 d (range, 8–1,420 d) and the mean growth rate of 1.4 cm mon–1 (female, 1.5 cm mon–1; male 1.3 cm mon–1). In the first experiment, 667 individuals were released at Heuksan Island from April to June, 2007–2009, and 30 individuals were recaptured mainly at the north and the north–east coasts of the island, indicating absence of migration to the south of the island. In the second experiment, 323 individuals were released at several fishing grounds scattered in the Yellow Sea in 2010–2013, and 11 individuals were recaptured at points deviated to all directions from the releasing points. As the last, one individual was released with pop–up satellite archival tag at a costal point (34°37.2’N, 124°59.3’E) off Hong Island on May 21, 2010. The tagged individual migrated to a north–east location (35°50.4’N, 126°03.6’E) of Eocheong Island by Aug. 25, 2010. The data archived for the three months in the tag indicated that the migration path had depths of 48–80 m and temperature of 12.6–14.4°C. The results indicated that mottled sake populations had a localized habitat ranges at the north of Heuksan Island and the west of Hong Island while growing at the rate of 1.4 cm mon–1.
본 연구는 유비쿼터스 환경에 적합한 시나리오를 기반으로 한 인텔리전트 의류의 어플리케이션을 개발하고 이를 실제 작동되는 디자인 및 구현을 목적으로 하였다. 스키장 응급구조 대원용 도우미 기능을 갖춘 인텔리전트 의류인 '패트롤 재킷'의 응용 시나리오를 개발하고, 이에 적합한 디자인을 선정하고 이를 실제로 구동 가능하도록 제작하였다. 이를 위하여, 전자/이미지 태그 기술 중 하나인 칼라 코드를 응용한 애플리케이션을 도출하고 이를 기반으로 컨셉 디자인과 실물 모델을 개발한 후 평가 및 수정 단계를 거쳐 최종 디자인 모형을 완성하였다. 이러한 일련의 과정을 거쳐 일상적인 외관의 인텔리전트 의류인 '패트롤 재킷'의 디자인 모형을 개발하였다.
감성 분석은 글을 통해 작성자의 주관적인 생각이나 느낌을 분석하는 방법으로 효과적인 감성 분석을 위해서는 감성 단어 극성 사전 구축이 필수적이다. 본 논문은 효율적인 한국어 극성 사전 구축을 위해 우리가 개발한 크라우드소싱 기반 게임을 소개한다. 먼저, 크롤러를 이용해 인터넷 커 뮤니티에서 말뭉치들을 수집했고, Twitter 형태소를 이용해 수집한 말뭉치를 형태소별로 분류하고 단어화했다. 이 단어들은 모바일 플랫폼 기반 태깅 게임 형태로 제공되어 게임플레이를 통해 플레 이어들이 자발적으로 단어들의 극성을 선택하고 결과가 데이터 베이스에 축적되도록 게임이 설계 되었다. 현재까지 약 1200여개의 단어들의 극성을 태깅하였으며, 향후 좀 더 많은 감성 단어 데이 터들을 축적함으로써 특히 게임 도메인에서 한국어 감성 분석 연구에 기여할 것으로 기대한다.
The objective of this study was to evaluate survival rate and fish movement (migration) using a tagging approach of passive integrated transponder (PIT) in Juksan Weir, which was constructed as a four major river restoration projects. For this study, survival rates of each fish species and the mobility of fish individuals were analyzed during 2 weeks by the insertion of PIT tags to various fish species in the laboratory. According to tagging tests in the laboratory, the survival rate 37.5% (30 survivals of 80 individuals) after the insertion of PIT tags. The survival rate of Carassius auratus and Hemibarbus labeo was 100% and 80% after the insertion of the tags, respectively, whereas it was only 13.3% for Zacco platypus. In the field experiments of Juksan Weir, 6 species and 157 individuals from 8 species (563 individuals) were detected in the fixed automatic data-logging system, indicating a detection rate of 27.9% in the fishway of Juksan Weir. In the meantime, some species with no or low detection rates in the fixed automatic data-logging system were turn out to be stagnant-type species, which prefer stagnant or standing water to live.
Fresh market tomato cultivars are divided largely based on fruit color appearance (red or pink), which is attributed by the trait of peel. It had been reported that mutation of the Slmyb12 gene suppresses synthesis of yellow-colored flavonoid (naringenin chalcone) in peel and causes pinkish tomato fruit. Whereas wild-type tomato plants synthesizing naringenin chalcone produce yellow-colored peel, which resulting in the fruit appearance to be red. The present study was performed to investigate the association between the Slmyb12 and fruit color of domestic tomato inbreed lines. A SCAR marker was developed from an Indel mutation site (72bp insertion in exon3) of the Slmyb12, and tested on 22 and 18 red and pink-fruited inbred lines, respectively. Unexpectedly, the results showed that all inbred lines tested had wild-type Slmyb12. The full length sequences of the Slmyb12 were cloned from two inbred lines (FCR1 and FCP1), but the sequence alignment did not identify any nucleotide variations within this gene. Furthermore, scanning of SNPs between FCR1 and FCP1 using SolCAP Tomato SNP array) found no SNPs for Slmyb12. To delimit the genomic region of the gene conferring fruit color of domestic tomato lines, we are analyzing SNPs in the genes adjacent to the Slmyb12 using an F2 population derived from FCR1 x FCP1. So far, one SNP located at 1,750kbp downstream from the stop codon of Slmyb12 was mapped using 54 F2 plants and 83% of phenotype-marker association was revealed, demonstrating that the fruit color is controlled bySlmyb12 indeed, or other neighboring gene(s) involved in the pathway of naringenin chalcone synthesis. Further study with more SNPs will clear up this question.