• Title/Summary/Keyword: Recent research and development trend

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A Study on the trend and applications of S-100 Standard (S-100 표준 동향 및 적용사례 연구)

  • Oh, Se-Woong;Park, Jong-Min;Suh, Sang-Hyun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2011.11a
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    • pp.88-90
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    • 2011
  • The IHO(International Hydrographic Organization) has developed the S-100 standard as a universal hydrgraphic data model for consistent use and application of various hydrographic data and sources, and is developing the product specification standards. The organization modified this standard to reflect the requirements of application parts, detailed the insufficient contents for products. In this study, the trend and recent requirement of S-100 standard were analyzed. Also, a method of managing S-100 standard was completed based on the analysis of S-100 application.

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Trend analysis of aridity index for southeast of Korea

  • Ghafouri-Azar, Mona;Bae, Deg-Hyo
    • Proceedings of the Korea Water Resources Association Conference
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    • 2017.05a
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    • pp.193-193
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    • 2017
  • Trend analysis can enhance our knowledge of the dominant processes in the area and contribute to the analysis of future climate projections. The results of previous studies in South Korea showed that southeast regions of Korea had the highest value of evapotranspiration. Thereby, it is of interest to determine the trend analysis in hydrological variables in this area. In this study, the recent 35 year trends of precipitation, reference evapotranspiration, and aridity index in monthly and annual time scale will be analyzed over three stations (Pohang, Daegu, and Pusan) of southeast Korea. After removing the significant Lag-1 serial correlation effect by pre-whitening, non-parametric statistical Mann-Kendall test was used to detect the trends. Also, the slope of trend of the Mann-Kendall test was determined by using Theil-Sen's estimator. The results of the trend analysis of reference evapotranspiration on the annual scale showed the increasing trend for the three mentioned stations, with significant increasing trend for Pusan station. The results obtained from this research can guide development if water management practices and cropping systems in the area that rely on this weather stations. The approaches use and the models fitted in this study can serve as a demonstration of how a time series trend can be analyzed.

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A Study on Recent Trends of Principal Particulars m Ice-Transiting Vessel Design (빙해 항행 선박 주요목의 변화 경향에 대한 조사 연구)

  • Choi Kyung-Sik
    • Journal of Ocean Engineering and Technology
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    • v.20 no.3 s.70
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    • pp.77-81
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    • 2006
  • In this study, design parameters of ice-transiting vessels in the world, currently in service or under construction, were collected and a database of principal particulars for each ship was established. To understand the recent design trend, ice-transiting vessels were categorized into four groups, i.e., conventional icebreakers, icebreaking tug/supply/research vessels, ice-strengthened passenger/car ferry and ice-strengthened cargo vessels. Changes in principal particulars for each group were reviewed and summarized. It was found that the most significant change in the design of ice-transiting vessels was the increment of large size commercial cargo vessels. It is believed that the recent hike of oil prices and booming of Russian economy has resulted in the need for year-round operation with bigger ships in the Baltic Sea and in the Sea of Okhotsk and also along the Northern Sea Route in Russian Arctic Sea.

Trend of European Spacecraft Simulator Development (유럽 우주비행체 시뮬레이터 연구개발 동향)

  • Lee, Hoon-Hee
    • Current Industrial and Technological Trends in Aerospace
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    • v.6 no.2
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    • pp.69-79
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    • 2008
  • As the cost of the operational spacecraft simulator is a large portion of the spacecraft cost and its requirements increase, it is given the pressures to reduce the cost and the development period. For that reason, the space industry with the coordination of ESA has made a study of the reuse in a wide scope across space projects. Its scope includes not only simulation software itself but also software requirements, design, work experience and developing process/methodology. The standard for simulator model portability and the efficiency enhancement of the development process as a result have been successfully applied to several projects. This paper describes the recent trend of the spacecraft simulator in Europe and the present status of its the study and the development.

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Micro computer-controlled automatic test method for automotive brake system (Micro computer를 이용한 자동차용 brake 시험 자동화 system에 대한 고찰)

  • 정화영
    • Journal of the korean Society of Automotive Engineers
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    • v.9 no.5
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    • pp.6-18
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    • 1987
  • Owing to remarkable development in automotive industry, vehicle performance comes close to perfection and guarantee of stability is getting emphasized in accordance with high speed trend in vehicle. In recent years, the utilization of automatic test method for research and development of automotive brake system is being propelled actively, which pursue whole automatic control from simple measurement to data acquisition. The main subject of this paper is to make a brief explanation on Micro computer controlled Automatic Test Method for Automotive Brake System which makes it possible to test with high accuracy and speed.

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Comparative Analysis of Levels of Internet Usage and Developments in Companies among Korea, U-S., and Japan (한, 미, 일 3국 기업의 인터넷 활용단계 및 발전모델연구 - 시계열 분석을 중심으로 -)

  • 서영호;채영일;이현수
    • Journal of Korean Society for Quality Management
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    • v.30 no.1
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    • pp.47-60
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    • 2002
  • Recently, the range of using Internet in business is expanding rapidly. And through Internet, companies are strengthening both their internal efficiency and their external competitive advantage in the market. In recent years, building and managing companies' web sites are becoming unavoidable tasks in business. Such a trend is becoming more imperative in business over the world. There is a great deal of research in progress to study the cases of companies with increasing performance from the use of their Internet web sites. But it is considered that there has not been enough of study in the area of levels of Internet application in business especially in strategic areas and application levels among countries. This research is in the same line of the research that was carried out on such topics in 1999. study in 1999 showed that there are significant differences in the usage levels of Internet in business between countries with long history of using Internet and those who are not. The 1999 study also suggested the model on development stages of Internet usage in business. This study is the continuation of the 1999 research and used two years of data to compare and analyze the trend of the Internet development stages in leading corporations in Korea, U.S.A., and Japan. This study found that there have been significant developments in the ability to use Internet in business in three countries. The differences in Internet usage level in each stage among different countries are compared and analyzed in this study.

Basic Study of new Hanok Style Public Buidings Design Trend Analysis - Focused on Seoul Jeolla-do Gyeongsang-do Region - (지속가능한 신한옥형 공공건축물을 위한 디자인 요소 기초연구 - 서울, 전라도, 경상도를 중심으로 -)

  • Park, Min-Young;Lee, Hyun-Soo;Lim, Sooyoung
    • KIEAE Journal
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    • v.14 no.5
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    • pp.111-116
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    • 2014
  • Han-ok has been forgotten by rapid industrialization, however, recent interest in Korean traditional culture and eco friendly architecture are increasing. Government is also processing various policies and research in Han-ok for historical reasons. Still Han-ok is considered as temporary discover stage not daily space. Moreover, previous weakness of Han-ok made it difficult to supply. There is a need to build new Han-ok style public buildings different from traditional or new Han-ok for revitalization of Han-ok. Moreover, development of new Han-ok style public buildings model are needed for the public which include updated concept and function. From public buildings model development and supply people can visit and explore Han-ok. Therefore Han-ok tradition can be modernized. In addition to this Korean traditional culture and mode of living can be developed and conserved. This research focuses on public buildings of Han-ok supplication and aims design elements and regional trend.

The Analysis of the Recent Research of Korean Medicine Public Health Promotion Programs in Korea (국내 한의약공공보건사업 최근 연구 분석)

  • Kim, Kyeong-Han;Song, Hyunjong;Kim, Jiwoo;Jang, Bo-Hyoung;Shin, Yong-Cheol;Ko, Seong-Gyu
    • Journal of Society of Preventive Korean Medicine
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    • v.18 no.2
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    • pp.1-10
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    • 2014
  • Objective : The aim of this study is to analyze the recent research of Korean Medicine(KM) public health promotion programs in Korea. Method : We searched the study using Korean Medicine Information System, Research Information Service System and Korean Studies Information Service. We analyzed studies by research content, publication year and type of journal. Results : Analysis by research contents, it was divided into survey research, policy research, development research and evaluation research. Analysis by publication year, little research had been conducted from 1990 until 2000 and most of the research was done since 2000. Analysis by type of journal, 53% of studies published by journals related with KM. Conclusion : Development and evaluation research of KM public health promotion programs should be actively conducted. It is also need to establish the foundation in which KM public health promotion programs would be expanded not only KM field but also in other fields.

Survey of Electro-Optical Infrared Sensor for UAV

  • Jang, Seung-Won;Kim, Joong-Wook
    • Current Industrial and Technological Trends in Aerospace
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    • v.6 no.1
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    • pp.124-134
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    • 2008
  • The rising demand for the high efficiency and high covertness in UAV motivates the miniature design of the high performing mission sensors, or payloads. One of the promising payload sensors, EO/IR sensor has evolved satisfying its demands and became the main stand-alone mission sensor for 200kg-range UAV. One aspect in development of EO/IR sensor concerns lack of specification criterions to represent its performance. Even though the high demand and competition among each manufacturer caused EO/IR features subject to rapid change collateral to new technology, the datasheets maintained the conventional outdated formats which leave some of the major components in ambiguity. Making comparisons or predicting actual performance with such datasheets is hardly worthwhile; yet, they could be important reference guide for the potential customers what to expect for the upcoming EO/IR. According to UAS Roadmap 2007-2032 published by DoD, one of the main potential customers as well as a main investor of EO/IR technology, EO/IR is expected to play key roll in solving urgent problems, such as see and avoid system. This paper will examine the recent representative EO/IR specialized in UAS missions through datasheets to find out current trend and eventually extrapolate the possible future trend.

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The Influence of Sustainability and Social Responsibility on Fashion Trends

  • Kim, Eun-Deok
    • International Journal of Costume and Fashion
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    • v.10 no.2
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    • pp.61-71
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    • 2010
  • The purpose of this study was first, to examine the causes for the recent acceleration in the increase of textile/apparel waste and the current practices for reducing waste in the global textile and apparel industry; and second, to explore the influence of sustainability and social responsibility on fashion trends. Extensive literature on sustainable apparel and sustainable and socially responsible practices by global textile and apparel firms was reviewed in conducting this research. First, an accelerated fashion diffosion speed due to fast fashion was focused on as a cause for the increase in textile/apparel waste whereas mass customization was focused on as a potential solution for reducing waste. Then, the influence of the social trend toward sustainability and social responsibility on fashion trends was discussed, particularly the trends toward green products and recycled fashion, the trend against using real for or leather, and minimum-fabric-waste fashion in design and product development. This study furthers consumers' understanding of sustainability and social responsibility related to fashion trends and hopefully increases their consciousness in becoming socially responsible consumers. This study will also contribute to better decision-making in apparel and textile firms to produce sustainable fashion products.