• Title/Summary/Keyword: ITS

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ITS기반 도로교통 안전시스템 정착을 위한 아.태 지역의 공동 대응방안

  • Yang, Geung-Hwan;Lee, Yong-Taek
    • Transportation Technology and Policy
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    • v.5 no.1
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    • pp.161-171
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    • 2008
  • 아시아의 도시교통사고는 빠른 인구증가와 경제성장으로 인한 자동차 보급 확대로 인해 OECD 국가에 비해 2${\sim}$3배 높은 수준으로 교통사고절감을 위한 대안 마련이 시급한 실정이다. 이에 본고에서는 ITS기반 도로교통 안전시스템의 정착을 통해서 아시아 도시의 공통된 교통안전문제를 해소하기 위한 공동대응방안을 제시하고 있다. 이를 요약하면, 첫째, 도로사고와 ITS관계를 규명하고 사고요인을 도로상에서 제거할 수 있는 ITS기술을 소개하였다. 교통사고원인의 95%가 운전자관련인자로 나타나 운전자관련 ITS요소기술(HMI 등)의 개발이 시급한 것으로 나타났다. 또한 현재 도로 안전분야에서 적용 가능한 실용기술로는 돌발상황관리시스템, 충돌경고시스템, 비상연락시스템, 단속시스템 등인 것으로 판단된다. 둘째, ITS기반 도로교통 안전시스템의 조기 정착을 위해서는 기존 조직 법 제도의 정비가 필요하다. 아시아 도시에서는 ITS 도입 초기 정부주도형으로 추진하는 것이 바람직한데, 이를 위해서는 정부조직 내 ITS 전담기구 (Headquarter)를 신설하고, 도로안전 ITS관련 법령 및 ITS Master Plan에 근거한 권한과 사업, 예산을 확보해야한다. 또한 인프라 및 ITS 구축 운영과 함께 RSA(Road Safety Audit)와 같은 선진안전제도 시스템을 벤치마킹하여 국내 현실에 맞도록 접목시켜 나가야한다. 셋째, 교통관제 (광역)정보센터, 버스센터, 구간속도단속 등 혁신적인 도로안전사업을 지속적으로 발굴 확충하여 노하우를 축적해야 한다. 넷째, 아시아 도시의 공통된 교통문제를 해소하기 위한 공동대응방안을 마련하기 위하여 각국의 노하우를 전파하고 공유하는 창구로 아시아 태평양지역 ITS포럼을 더욱 육성해야 하겠다.

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Phylogenetic Relationship among Several Korean Coastal Red Tide Dinoflagellates Based on their rDNA Internal Transcribed Spacer Sequences

  • Cho, Eun-Seob;Kim, Gi-Yong;Park, Hyung-Sik;Nam, Byung-Hyouk;Lee, Jae-Dong
    • Journal of Life Science
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    • v.11 no.2
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    • pp.74-80
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    • 2001
  • The nucleotide sequences of the internal transcribed spacer regions (ITS1 and ITS2) of ribosomal DNA (rDNA), and the 5.85 rRNA gene, have been determined for 13 strains of dinoflagellates in order to analyze the phylo-genetic relationship. The DNA sequences contained considerable variation in the ITS regions, but little in the 5.85 rDNA. In addition, the ITS1 was more variable than the ITS2 in all species examined. The nucleotide length of this region varied from 519 bp to 596 bp depending on the taxa. The investigated taxa were divided into three large groups based on the ITS length, i. e., a group with short ITS region (A. fraterculus and Alexandrium sp.), a with ITS region group (P. micans, P. minimum and P. triestinum) and a with ITS region group (G. impudicum, C. polykrikoides, G. sanguineum, G. catenatum and H. triquetra). The relationship between nucleotide length of ITS1 and that of ITS2 was negative, whereas G+C content and nucleotide length showed positive correlation. In phylogenetic analyses producing NJ trees, the topology was similar cluster and clearly divided the taxa into three groups based on 5.8S rDNA that were similar to those based on morphological characteristics. In particular, G. impudicum was more closely related to G. catenatum than to C. polykrikoides using phylogenetic analysis. From this study, we chew that the length of ITS region contributes to discriminate Korean harmful algal species and ITS analysis is a useful method for resolving the systematic relationships of dinoflagellates.

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A Mutimedia Tithe for the Education of ITS (ITS 교육용 멀티미디어 타이틀)

  • Oh Jun-Suk;Mun Jae-Young;Lee Hang-Chan
    • Journal of Digital Contents Society
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    • v.2 no.1
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    • pp.41-50
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    • 2001
  • According to the rapid changing of modern Society, the portion and influence of the industries which are related to IT(Information Technology) have being Increased. Therefore, we need to recognize and learn to the new technologies such as ITS (Intelligent Transport Systems) because they are very closely related to our living environments. Unfortunately, people who are not expertized to the ITS have had hard time to understand these systems. In this paper, we introduce a multimedia courseware which requires only simple operations of mouse and keyboard for education of ITS. This courseware includes not only the areas of services for user but also scopes and components, and applications of ITS, which make possible to understand what the ITS are When we apply this courseware to the people who we not specialized to ITS, they can understand the ITS more easily.

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A Sturdy on the Deployment Strategy of Communication Environment for Adopting the International Standards between ITS Center and Roadside Equipment (국제 표준에 부합하는 ITS 센터-노변장치간 통신환경 구축 방안 연구)

  • Lee, Sang-Hyun;Son, Seung-Neo;Cho, Yong-Sung;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.11 no.4
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    • pp.34-50
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    • 2012
  • This study set out to define a communication environment between an ITS center and field device required to be introduced in the nation in order to guarantee the interoperability, compatibility, and global competitiveness of communication between them in the nation. It also aimed to establish technical and policy plans for its introduction, develop an emulator for information exchange, and apply VMS by way of showing an example, thus testing its validity. First, a standard environment for information exchange between an ITS center and field device required to be introduced in the nation was defined as a dual protocol between DATEX and SNMP. The study also proposed a message definition system including meta-attribution definition and OID introduction. The study then suggested technical and policy plans for its introduction including securing enough feasibility with feedback through a model project of standard introduction, offering education and promotions for the standard in advance, providing methods to introduce and systematically manage OID, developing a hardware standard proper for the information exchange standard, and setting up an integrated management system to introduce a dual protocol.

Effects of Insulin, Transferrin and Selenium (ITS) on In Vitro Development of Porcine Parthenogenetic and Nuclear Transfer Embryos

  • Quan, Yan-Shi;Naruse, Kenji;Kim, Baek-Chul;Kim, Hong-Rye;Han, Rang-Xun;Choi, Su-Min;Park, Chang-Sik;Jin, Dong-Il
    • Reproductive and Developmental Biology
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    • v.31 no.4
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    • pp.261-265
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    • 2007
  • Insulin, transferrin and selenium (ITS) complex is reported to improve in vitro development of oocytes and embryos. This study was carried out to investigate the effects of ITS during in vitro culture (IVC) of porcine parthenogenetic and nuclear transfer (NT) embryos on subsequent developmental capacity in vitro. The electrically activated oocytes were cultured in Porcine Zygote Medium (PZM-3) with various concentrations (0, 0.1, 0.5, and 1.0%) of ITS for 7 days. Also, the electrically activated reconstructed embryos were cultured in PZM-3 with various concentrations (0, 0.1, 0.5, and 1.0%) of ITS for 6 days. Addition of ITS to culture medium did not affect development of porcine parthenogenetic embryos in vitro. To test the effect of ITS on the in vitro development of porcine NT embryos, factorial experiments were also performed for in vitro maturation (IVM) medium (TCM-199) with or without 1% ITS and culture medium (PZM-3) with or without 0.5% ITS. Addition of 0.5% ITS to culture medium increased (p<0.05) the proportion of NT blastocysts compared with non-treated group. In contrast, addition of 1% ITS to culture medium was ineffective or had a detrimental effect. Also, addition of ITS only to maturation medium increased (p<0.05) the percentage of NT blastocysts formation compared with the control group. In conclusion, addition of ITS to IVM or IVC medium could improve subsequent blastocyst development of porcine NT embryos.

The Emphatical study on the Relationship among Corporate Cash Flow, its Accruals and its Factors with the Sustainability of Profit and Corporate Value of KOSDAQ-based Manufacturing Companies (코스닥 기반 제조업 중견기업 중심으로 현금흐름과 그 발생액 및 발생액 요소가 기업이익 지속성과 기업가치에 미친 실증적 연구)

  • Kim, Jong Hwee;Yang, Dong Woo
    • The Journal of the Korea Contents Association
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    • v.16 no.2
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    • pp.580-587
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    • 2016
  • This paper examined the relationship among corporate cash flow, its accruals, and its factors with its continuity of profit and corporate value by regression analysis of KOSDAQ based midsize manufacturing enterprises for 11 years from 2004 to 2014 year. Through this empirical analyze, corporate operators can have a chance to find opportunities to improve the efficiency of business operations, and to the potential investors, it can give the perspective through providing the basic information for the rational investment decisions. Through this analysis, its cash flow, accruals and its factors showed continually a significant relationship with its corporate operating profits and its market values. Thought out the relation analysis, its cash flow, its accurals and the factors of the accruals, account receivables, inventories affected the positive(+) impact on its business profits. But, its account payables affected negative(-) impact on its business profit. The other hand, the cash flow from operating activities and accruals related to capitalization of assets and liabilities fluctuations affected a positive(+) effect on the company market value.

Analysis of the ITS (Internal Transcribed Spacer) Region of Opuntia ficus-indica (백년초선인장의 ITS(internal transcribed spacer) 유전자 분석)

  • In Jun-Gyo;Lee Bum-Soo;Kim Eun-Jeong;Choi Kwan-Sam;Han Seung-Ho;Shin Cheol-Woo;Yang Deok-Chun
    • Korean Journal of Plant Resources
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    • v.19 no.1
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    • pp.161-168
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    • 2006
  • To investigate the origin of backyeoncho (Opuntia ficus-indica var. saboten), we isolated 685 bp clone using ITS primer pairs. The rDNA consists of the genes coding for the partial 54 bp 185, 162 bp 5.8S, and partial 56 bp 26S. The coding regions are interrupted by two internal transcribed spacers, 193 bp ITS1 and 220 bp ITS2. The ITS2 of backnyeoncho in length was shorter than that previously registered in Cucurbitoideae plants. The GC contents was 66.8% in ITS1, and 67.7% in ITS2. The rDNA of backnyeoncho matched to the previously reported genes and showed a high similarity with the 95% identity with Pereskiopsis porteri (L708037). In the phylogenetic analysis, the backnyeoncho rDNA was clustered with Pereskiopsis porteri (L708037).