• Journal of Korea Spatial Information System Society
• /
• v.6 no.2 s.12
• /
• pp.77-84
• /
• 2004

The purpose of this study is to suggest an effective guideline for reducing communication costs and improving qualities of Intelligent Transport Systems (ITS) by totally or partially integrating wireless communication networks between equipments of ITS Centers and Roadside in the National ITS Physical Architecture. We analyzed wire and wireless communication networks such as wireless LAN and satellite communications in the National Highway Traffic Management System (NHTMS) for receiving and transmitting transportation data. Also, we analyzed operation and communication costs to find out right communication networks for ITS. The results of this study will be used to build and operate many other ITS systems including Korea Highway Corporation.

• Convergence Security Journal
• /
• v.16 no.4
• /
• pp.25-34
• /
• 2016

This paper shall suggest the improvement model for invigorating cyber threat information sharing from the national level, which includes, inter alia, a comprehensive solutions such as the legislation of a guideline for information sharing, the establishment of so-called National Center for Information Sharing, the construction and management of a integrated information system, the development of techniques for automatizing all the processes for gathering, analyzing and delivering cyber threat information, and the constitution of a private and public joint committee for sharing information, so much so that it intends to prevent cyber security threat to occur in advance or to refrain damage from being proliferated even after the occurrence of incidents.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2017.10a
• /
• pp.274-276
• /
• 2017

Korean e-Navigation is a system that introduced to reduce maritime accidents. In order to reduce marine accidents, Korean e-Navigation provides the following services-"Vulnerable Vessel Monitoring", "Vulnerable Vessel support & monitoring", "Optimal safety route", "ENC Streaming for Small Vessel", "Tug & Barge Support", "Maritime Safety Information Providing". Each Service is a system separated into finctional units and integrated into Korean e-Navigation. Korean e-Navigation is introducing data middleware to integrate each service and the DDS(Data Distribution Service) is judged to be effective. Thus, this paper analyzed the characteristics of DDS middleware types suitable for each service of e-Navigation.

• The Journal of the Convergence on Culture Technology
• /
• v.7 no.3
• /
• pp.79-87
• /
• 2021

This study was conducted with the main purpose of designing a roadmap for the development and operation of the Duksung IiRUM personality education curriculum from the perspective of alternatives to the educational innovation of Duksung Women's University. The research method consisted of a procedure of analyzing the literature dealing with theoretical considerations or case plans to establish the foundation of the university personality education curriculum, along with an expert meeting. The contents of this study are presented a roadmap of how the personality education curriculum, which should be newly constructed from the alternative point of view of educational innovation, which has not been established the foundation of personality education throughout the current curriculum of Duksung Women's University, can be designed in a convergent manner in the current curriculum composition. Accordingly, various measures have been suggested to develop and operate the Duksung IiRUM personality education curriculum across subject matters education and extracurricular education programs. As a result of the study, it was analyzed that the Duksung IiRUM personality education curriculum at Duksung Women's University could be developed in a balanced and convergent manner with the existing and current curriculum composition, and could also be expected to operate effectively.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.9 no.6
• /
• pp.13-21
• /
• 2010

Road Traffic Authority and National Police Agency is currently managing the "development of an integrated metropolitan traffic information infrastructure" that installs of facilities for a traffic information infrastructures, such as Local Traffic Information Center, UTIS(Urban Traffic Information System), CCTV, VMS and etc. CTIC was established in 2005 to act as an traffic information hub and to provide integrated UTIS traffic information without regional barriers. This study was carried out to seek for solution to improve quality of UTIS traffic information service for the Central Traffic Information Center(CTIC). In this study, the Evaluation index for UTIS traffic information service was developed and the implementation plan was established by using requirement analysis method, case study and AHP(Analytic Hierarchy Process) technique. The Evaluation index consist of 5 fields and 20 index, it make possible evaluation of direct/indirect effect for UTIS traffic information service. In conclusion, It is expected that quality of UTIS traffic information service will be improved by using developed evaluation index and also can be applied for performance evaluation of other traffic information systems.

• Journal of Appropriate Technology
• /
• v.7 no.2
• /
• pp.127-135
• /
• 2021

To respond to the threat of global warming, countries around the world are promoting the spread of renewable energy and reduction of carbon emissions. In accordance with the United Nation's Sustainable Development Goal to combat climate change and its impacts, global automakers are pushing for a full transition to electric vehicles within the next 10 years. Electric vehicles can be a useful means for reducing carbon emissions, but in order to reduce carbon generated in the stage of producing electricity for charging, a power generation system using eco-friendly renewable energy is required. In this study, we propose a smart electric mobility operating system integrated with off-grid solar power plants established in Tanzania, Africa. By applying smart monitoring and communication functions based on Arduino-based computing devices, information such as remaining battery capacity, battery status, location, speed, altitude, and road conditions of an electric vehicle or electric motorcycle is monitored. In addition, we present a scenario that communicates with the surrounding independent solar power plant infrastructure to predict the drivable distance and optimize the charging schedule and route to the destination. The feasibility of the proposed system was verified through test runs of electric motorcycles. In considering local environmental characteristics in Tanzania for the operation of the electric mobility system, factors such as eco-friendliness, economic feasibility, ease of operation, and compatibility should be weighed. The smart electric mobility operating system proposed in this study can be an important basis for implementing the SDGs' climate change response.

• Journal of Practical Engineering Education
• /
• v.5 no.2
• /
• pp.139-149
• /
• 2013

In this paper, we proposed a new Korean Dual system, K-Dual System, and discussed the concepts and details about three sub-models of the system, IPP, W3 and corporate university models. Propose K-Dual system is a new and unique educational model that combines academic study and industrial work in order to solve the various problems of existing work-study parallel educational systems in Korea. K-Dual System has two tracks, Academic and Vocational tracks. Academic track has a long-term field experience training program, IPP program. On the other hands, Vocational track can be divided into two sub-models and those are $W^3$ and corporate university. Finally, we summarized several key points for the successful setup and operation of K-Dual system.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2016.05a
• /
• pp.328-328
• /
• 2016

우리나라는 생활용수의 대부분을 지표수에 의존하고 있는 실정이다. 그러나 지표수는 가뭄과 같은 기상변화, 수질사고 등으로 물 공급의 안정성에 문제가 되기도 한다. 향후 기후변화는 가뭄의 빈도와 강도를 증대시킬 것으로 파악되므로 수질 및 수량의 문제를 더욱 악화시킬 것으로 예상된다. 이러한 문제점을 해결하기 위해 지표수를 대수층 내에 인공적으로 함양한 뒤 대수층의 자연정화 기능에 의해 여과된 양질의 청정원수를 생산하는 기술을 본 연구에서 현장에 실증 적용하는 시설을 구축하였다. 이러한 기술은 기존의 지하 대수층을 이용하는 강변여과 등이 갖는 장점을 취하고 단점을 보완하였으며 친환경적이며 지속가능한 용수공급뿐만 아니라 청정 원수 확보를 통해 정수처리비용을 절감, 장기간의 가뭄이나 지표수 수질사고 시에 비상용수 공급 등 기존 취수원들과 달리 많은 장점을 갖고 있는 대규모 청정지하저수지 시험시설이다. 청정 지하저수지 기술이 주로 적용되는 지역은 해안지역 또는 하구 델타지역을 대상으로 한다. 해안 또는 델타지역은 해수침투로 인하여 염지하수가 부존되어 있기 때문에 지하수자원 활용에 매우 제한적이다. 따라서 지표수(담수)를 전처리하여 대수층에 인공적으로 함양을 하여 염지하수 대수층 안에 담지하수(담수체)를 형성할 수 있다. 이는 염수와 담수의 밀도차에 의해 희석되지 않는 특성을 이용한 기술이다. 청정 지하저수지 시험시설은 크게 지표수 취수시설, 전처리시설, 주입정, 양수정, 운영시스템으로 나눌 수 있다. 주입정 및 양수정은 원형의 형태로 지하저수지 조성범위 중심부에 9개의 주입정과 외각에 8개의 양수정을 설치하였다. 시험시설의 운영 과정은 하천수를 취수하여 전처리시설에서 탁도를 제거한 후, 피압대수층 염지하수에 동력으로 주입을 한다. 이때 기존에 부존되어 있던 염지하수를 밀어내고 담수체 지하수 형성을 유도한다. 일정기간 주입을 통해 목표 담수체를 만들어 내면 양수정에서 담수를 취수하되, 대수층의 모래자갈층을 일정거리 이동하여 취수하는 방식이다. 즉, 하천수를 대수층에 함양하고, 일정거리를 이동하여 취수하는 ASTR 방식의 대체수자원 확보 기술이다. 시험시설은 통합운영센터를 통해 원격감시 및 각종 제어/계측을 실시하며, 모니터링된 자료는 운영시스템에서 관리한다. 본 연구시설에서는 대수층 주입, 관정폐색, 미생물/지화학 수질반응, 지하수모니터링, 지반변형 등이 주요 핵심 연구를 진행하고 있도록 시설을 구성하였다. 본 시험시설은 2015년 8월 착공하여 2016년 4월에 완공 예정이며, 2016년 3월부터 주입을 시작하여 6개월간 피압대수층에 주입을 실시하고 이후부터 주입과 양수를 병행할 계획이다.

• Korean Journal of Community Nutrition
• /
• v.26 no.3
• /
• pp.188-199
• /
• 2021

Objectives: The purpose was to identify the ingredients that are usually surveyed for assessing real prices and to present the demand for such surveys by nutrition teachers and dietitians for ingredients used by school foodservice. Methods: A survey was conducted online from December 2019 to January 2020. The survey questionnaire was distributed to 1,158 nutrition teachers and dietitians from elementary, middle, and high schools nationwide, and 439 (37.9% return rate) of the 1,158 were collected and used for data analysis. Results: The ingredients which were investigated for price realities directly by schools were industrial products in 228 schools (51.8%), fruits in 169 schools (38.4%), and specialty crops in 166 schools (37.7%). Moreover, nutrition teachers and dietitians in elementary, middle, and high schools searched in different ways for the real prices of ingredients. In elementary schools, there was a high demand for price information about grains, vegetables or root and tuber crops, special crops, fruits, eggs, fishes, and organic and locally grown ingredients by the School Foodservice Support Centers. Real price information about meats, industrial products, and pickled processed products were sought from the external specialized institutions. In addition, nutrition teachers and dietitians in middle and high schools wanted to obtain prices of all of the ingredients from the Offices of Education or the District Office of Education. Conclusions: Schools want to efficiently use the time or money spent on research for the real prices of ingredients through reputable organizations or to co-work with other nutrition teachers and dietitians. The results of this study will be useful in understanding the current status of the surveys carried out to determine the real price information for ingredients used by the school foodservice.

• Tunnel and Underground Space
• /
• v.34 no.4
• /
• pp.312-329
• /
• 2024

In various underground research projects such as energy storage and development and radioactive waste disposal targeting deep underground, the characteristics of permeable rock fractures that serve as major pathway of groundwater flow in deep rock aquifer are considered as an important evaluation factor in the design, construction, and operation of research facilities. In Korea, there is little research and database on the location and hydraulic characteristics of permeable rock fractures and the pattern of groundwater flow patterns that may occur between fractures in deep rock boreholes. In this paper, the hydraulic characteristics of permeable rock fractures in deep rock aquifer were evaluated through the analysis of geothermal gradient and pumping test data. First, the deep geothermal distribution was identified through temperature logging, and the geothermal gradient was obtained through linear regression analysis using temperature data by depth. In addition, the hydraulic characteristics of the fractured rock were analyzed using outflow temperature obtained from pumping tests. Ultimately, the potential location and hydraulic characteristics of permeable rock fractures, as well as groundwater flow within the boreholes, were evaluated by integrating and analyzing the geophysical logging and hydraulic testing data. The process and results of the evaluation of deep permeable rock fractures proposed in this study are expected to serve as foundational data for the successful implementation of underground research projects targeting deep rock aquifers.