• Nutrition Research and Practice
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• 제1권2호
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• pp.89-93
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• 2007

Many countries such as The Republic of Korea have established their own nutritional standards, collectively termed Nutrient Reference Values (NRVs), and they vary due to the science which was reviewed, the purposes for which they are developed, and issues related to nutrition and food policy in the country. The current effort by the Codex Alimentarius Committee on Nutrition and Foods for Special Dietary Uses (CNFSDU) to update the NRVs that were established following the Helsinki Consultation in 1988 represents an opportunity to develop a set of reference values reflecting current scientific information to be used or adapted by many countries. This paper will focus on possible approaches to selecting or developing reference values which would serve the intended purpose for nutrition labeling to the greatest extent possible. Within the United States, the Food and Drug Administration (U.S. FDA) is currently reviewing regulations on nutrition labeling to better address current health issues, and is expected to enter into a process in the next few months to begin to explore how best to update nutrient Daily Values (DVs), most of which are still based on the Recommended Dietary Allowances (RDAs) of the Food and Nutrition Board, U.S. National Academy of Sciences, last reviewed and revised in 1968. In this presentation, I review the current purposes in the U.S. for nutrition labeling as identified in the 1938 Food, Drug, and Cosmetic Act as amended, the scientific basis for current nutrition labeling regulations in the United States, and the recommendations made by the recent Committee on Use of Dietary Reference Intakes in Nutrition Labeling of the Institute of Medicine (2003) regarding how to use the DRIs in developing new DVs to be used on the label in the United States and Canada. Based on these reviews, I then provide examples of the issues that arise in comparing one approach to another. Much of the discussion focuses on the appropriate role of nutrient labeling within the Nutrition Facts panel, one of the three major public nutrition education tools in the United States (along with MyPyramid and Dietary Guidelines for Americans).

• 전자공학회논문지B
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• 제32B권10호
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• pp.1338-1346
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• 1995

In this paper, we suggest the implementation of a DGPS system using two low cost commercial C/A code GPS modules and modems and its efficient operational techniques to provide DGPS service which guarantees the position accuracy of better than 10 meters for more users. The proposed DGPS system can be implemented easil at low cost because it needs a GPS module and a modem for each reference station and user. The reference station makes plans of the receiving schedule from the satellite set at each period and then provides the correction data for various satellite sets in a period. The main contribution of this paper is that users can utilize the correction data continuously and efficiently through the recursive least squares lattice filtering method. Experimental results show the position accuracy of better than 10 meters using the suggested DGPS system in almost real time.

• 한국CDE학회논문집
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• 제14권1호
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• pp.1-9
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• 2009

ISO 15926 is an international standard for the representation of process plant lifecycle data. However, it is not easy to implement the part 2-data model and the part 4-initial reference data because of their complexity in terms of data structure and shortages of related development toolkits. To overcome this problem, ISO 15926-7(part 7) is under development. ISO 15926-7 specifies implementation methods for sharing and exchange of process plant lifecycle data, which is based on semantic web technologies such as OWL, Web Services, and SPARQL. For the application of ISO 15926-7, this paper discusses how to represent technical specifications of process plant equipment by defining user-defined reference data and object information model with an example of reactor coolant pumps located in the reactor coolant system of an APR 1400 nuclear power plant.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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• pp.51-54
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• 2008

유비쿼터스도시(u-City) 에서 제공할 서비스 즉, u-City서비스를 실제로 구현하기 위해서 사용되는 기술을 u-City 기술이라고 할 수 있다 본 논문에서는 u-City서비스, u-City 기반시설 그리고 u-City 기술들 간의 관계를 명확히 설명하기 위한 도구로서 u-City 기술 참조모델을 정의하였다. 이러한 참조모델을 사용함으로써 u-City 구축자, 서비스 제공자, 운영자, 이용자 등 여러 u-City 참여자들이 공감할 수 있는 서비스-기술 연계 모델을 제시하였으며 향후 u-IT 세부 기술이 발전하고 새로운 u-City 서비스가 추가되어도 이를 원활히 수용할 수 있도록 하였다.

• Journal of Positioning, Navigation, and Timing
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• 제11권4호
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• pp.239-244
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• 2022

R-Mode is terrestrial based Global Navigation Satellite System (GNSS) backup radio navigation technology which used existing maritime information service infrastructure. It has advantages on reduce the cost and reutilize the frequency resource. In this paper, we propose a method to develop a medium-frequency (MF) band R-Mode transmitting station by utilizing the currently operating Differential GNSS (DGNSS) reference station infrastructure. To this end, the considerations for co-operating the DGNSS reference station and the MF R-Mode transmitting station are analyzed. In this process, we also analyze what is necessary to configure the communication system as a navigation system for range measurement. Based on the analysis result, MF R-Mode transmitting station system is designed and architecture is proposed. The developed system is installed in the field, and the performance evaluation results is presented.

• 한국문헌정보학회지
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• 제13권
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• pp.95-119
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• 1986

The objective of this study is to search for a theoretical and practical solution to the question of what is the most effective and qualitative method of information service for the college and university libraries in Korea. Assuming the maximum service or total service theory in information services, therefore, it appears natural that the subject specialist who is highly knowledgeable in his subject is indispensable in raising the quality of information librarians. The procedure of this research was as follows: There was no college and university library employing any full-time subject spceialist in Korea. This research, however, was proceeded on the assumption that subject specialists are already employed in all of the college and university libraries after the subject specialist system is established. The least qualification of subject specialist is limited, based on the criteria given by the foreign literature, to those who have master's degree in Library Science and bachelor's degree in any other subject area, those who have bacholor's degree in Library Science and master's degree in any other subject area, or those who have both bacholor's and master's degrees in Library Science with minor in any subject field . To prove the research hypothesis that the subject specialist will perform his role more efficiently than the generalist in effectively providing information service based on both accuracy and speed, this research as an obtrusive testing method analyzed the effectiveness by presenting information questions to the generalists and subject specialists who are information librarians in college and university libraries. For this study 20 librarians working at 12 university libraries were tested for performance levels of information services. The result showed $59.75\%$ an absolute performance rate and $75.20\%$ an adjust performance rate. Compared to Thomas Childer's 1970 study in which he used the unobtrusive testing method, these results were $5\%$ higher in the absolute performance rate and $11.36\%$ higher in the adjust performance rate. In comparing the generalist with the subject specialist in efficiency of information service, while the absolute performance rate was $57.08\%$ and the adjust performance rate was $73.08\%$ in the case of the generalist, the absolute rate was $63.75\%$ and the adjust rate was $78.38\%$ in the case of specialist, therefore, the efficiency of the subject specialist was $6.67\%$ higher in the absolute performance rate and $5.30\%$ higher in the adjust performance rate than that of generalist. But the factor of speediness was excluded from the analysis because of the difference between the time the interviewers recorded and the time the interviewee recorded. On the basis of the result of this research, it should be desirable to educate subject specialists and employ them as information librarians and for them to function as efficient subject specialists in order to improve the effectiveness of information services, the nucleus of the raison d'etre of college and university libraries.

• 인터넷정보학회논문지
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• 제8권4호
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• pp.129-136
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• 2007

엔터프라이즈 아키텍처 패턴 중 하나인 도메인모델은 재사용성 및 확장성, 그리고 유지보수에 많은 장점을 갖고 있다. 도메인모델을 적용하기 위해서는 지속성계층과의 매핑 및 트랜잭션 관리를 위한 다양한 서비스가 필요하다. 본 논문에서는 도메인모델을 적용하여 개발한 시스템에서 도메인객체의 삭제 트랜잭션 처리 시 발생할 수 있는 참조의 일관성 오류 문제를 해결하기 위해 도메인객체의 연관정보를 관리하는 서비스를 제안한다. 제안한 연관정보 관리 서비스는 다대다 연관을 맺고 있는 도메인객체를 모니터링 하고 수행흐름을 가로채어 삭제 시 발생하는 객체의 참조 오류를 해결한다. 도메인객체 및 기존 서비스의 수정 없이 서비스를 제공하기 위해 AOP(Aspect-Oriented Programming)를 적용하였다.

• 한국측량학회지
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• 제31권2호
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• pp.135-142
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• 2013

최근 상시관측소와 네트워크 기반 RTK를 활용하여 GPS/INS를 해석하고 이를 통해 항공사진측량에 필요한 외부표정요소를 획득하는 방법은 널리 알려져 있다. 본 연구에서는 외부표정요소를 계산함에 있어 지상기준국을 활용하는 방법과 상시관측소과 방송력 및 IGS 정밀력을 결합해 SmartBase를 이용하는 방법, 각각의 상시관측소를 이용하는 방법을 비교하였으며, 지상기준국으로 계산한 성과를 기준으로 외부표정요소의 잔차를 계산하였다. 그 결과 SmartBase를 활용하여 외부표정요소를 획득한 경우는 상시관측소만을 활용한 경우보다 X, Y, K에서 더 높은 정확도를 획득할 수 있었다. 또한 지상기준국을 중심으로 상시관측소의 거리와 방향이 외부표정요소에 영향을 미치며, 항공사진 코스에 따라 각각 다른 형태의 잔차가 나타남을 알 수 있었다.

• 디지털융복합연구
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• 제19권8호
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• pp.241-247
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• 2021

도시 발전에 따른 부작용들을 해결하기 위한 한 방안으로 도시에 정보 통신 기술이 융합된 스마트 시티를 구축하고 있다. 스마트 시티 플랫폼은 스마트 시티 서비스의 개발 및 통합을 지원해야 한다. 따라서 스마트 플랫폼이 지원해야 하는 기반 기술과 기능적 및 비 기능적 요구 사항을 분석하였다. 스마트 시티 플랫폼이 지원하는 기반 기술로 사물 인터넷, 클라우드 컴퓨팅, 빅 데이터 및 사이버-물리 시스템의 4가지 범주로 분류하고 구현 가능한 기능적 및 비 기능적 요구 사항과 스마트 시티 플랫폼의 참조 모델을 도출했다. 스마트 시티 플랫폼의 참조 모델은 도시관리자에게 특정 도시 문제를 해결하기 위한 기능적 또는 비 기능적 요구 사항에 따른 기반 기술의 투자와 서비스 개발 범위에 대한 의사 결정에 활용하고. 플랫폼 개발자에게 스마트 시티 구축을 위한 소프트웨어 플랫폼의 기능적 및 비 기능적 요구 사항과 구현 기술을 식별하고 결정하는 가이드라인을 제공한다.

• 한국IT서비스학회지
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• 제19권6호
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• pp.15-29
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• 2020

Facing the era of intelligence, the demands for changes of e-Government system appears to be rising upon the development of AI, VR, IoT and other new technologies. However, it also comes with the increasing possibility of mobile digital divide among regions, ethnicities and social classes. As the e-Government Service is only available for specific groups, the national government should proactively build an information environment to promote the convenient access and use of e-Government Service comprehensively by all the people. In the light of the sociodemographic characteristics, this study tests whether the difference is statistically significant involving the mobile digital divide between different groups with the analysis of variance, while determining the relationship between the mobile digital divide and the usage intention of e-Government Service through multiple regression analysis. The main findings of this study are as follows. First, there are differences and statistical significance between groups of different ethnicities and regions on accessibility with electronic products and networks. Second, there are obvious differences and statistical significance between groups of different ages, educational levels and ethnicities on the competency and usability of electronic products and networks. Third, the accessibility to electronic products and networks has no effect on the usage intention of e-Government Service, while the competency and usability of electronic products and networks have a strong positive impact on the usage intention of e-Government Service. The author hopes that the research findings of this paper can provide reference suggestions and opinions for bridging the digital divide among regions in China and promoting the popularization of the e-Government Service.