• 한국태양에너지학회 논문집
• /
• 제33권2호
• /
• pp.108-117
• /
• 2013

Studies on the regulation and measurement of greenhouse gases(GHGs) emissions have been carrying out for global wanning. In order to reduce greenhouse gas emissions, many countries have been promoting the Emissions Trading System and projects of the Joint Implementation(JI) and Clean Development Mechanism(CDM). These country's GHG emissions have been measured calculation criteria based on the Intergovernmental Panel on Climate Change(IPCC) Guidelines. In order to respond to GHGs regulation, in each country, it is planing to build a Low-Carbon City. The system has been developed for calculating GHGs emissions from companies and institutions in their respective countries. However, the system can monitor the GHGs per city, has not been developed. In this paper, it is studied to design the User Interface and to develop integrated monitoring program for Low-carbon city. This program will make possible monitoring and management, statistics, and reports written by using each data in units of cities.

• 적정기술학회지
• /
• 제6권2호
• /
• pp.190-199
• /
• 2020

본 연구는 유럽-한인 과학기술학회에서 2016년부터 운영하고 있는 청소년 적정기술 과학교실 프로그램의 개발과 적용에 목적을 두고 있다. 개발 과정은 크게 사전 온라인 운영진 회의, 온라인과 오프라인에서의 Tutor 교육, 청소년 적정 기술 과학교실 운영, 만족도 조사로 진행되었다. 개발 결과, 운영진은 사전 온라인 회의를 통해 '블록체인 기술을 이용한 가난한 마을살리기'라는 미션해결형 주제를 선정하였다. 참가 학생들의 수준에 맞게 내용을 재구성하고 공동제작, 게임, 연극 등의 다양한 학습활동을 새로 도입하여 1차로 개발하였고, Tutor 교육을 통해 개발된 프로그램을 시연해보면서 개선시켰다. 2018년 EKC 과학교실에 6개국, 총 38명의 Tutee와 Tutor들이 참가하였다. 적용 결과, 참가자들은 전반적으로 프로그램에 대해 긍정적인 만족도를 나타냈으며, Tutee들은 돔제작활동과 해쉬함수 계산활동에 관심을 보였으며 Tutor들은 블록체인 기술과 관련한 강의나 빌리지코인 보드게임에 흥미를 보였다. 2018 EKC 과학교실 개발과 적용은 운영진들에게는 향후 EKC 과학교실 운영에 대한 전문성 향상에 기여할 것이며, Tutor들은 첨단과학기술도 제3세계 및 공동체 사회를 위한 적정기술로의 선한 영향을 줄 수 있음을 경험하는 계기가 될 것이다. 또한, Tutee들에게는 블록체인기술이 아프리카 마을에 미치는 영향에 대한 역할극을 통해 해당 지역 상황과 공동체사회를 간접적으로 경험하는 기회를 제공할 것이다.

• Nuclear Engineering and Technology
• /
• 제36권3호
• /
• pp.263-275
• /
• 2004

For the safe management of nuclear facilities, including a radioactive waste repository, data about the facility site and the surrounding environment must be collected and managed systematically. This is particularly true for a radwaste repository, which has to be institutionally controlled for a long period after closure. The objectives of this study are (1) to establish a systematical management plan for information about a radwaste repository site and its environment, and (2) to design a database management program for this information, based on the Relative Database Management System (RDBMS). The spatial data are designed by the geodatabase, which is a new object, based on the RDBMS, to manage spatial information related to the database. To meet this requirement, a new program called 'Site Information and Total Environmental data management System (SITES)' is being developed. The scope that produced from the first step of the present study for development of the SITES is introduced. The database is designed to combine spatial and attribute data, and is designed for the establishment of the Geographic Information System (GIS). The hardware and software systems are designed with consideration given to the total data management of the items within the radioactive environment.

• Nuclear Engineering and Technology
• /
• 제38권6호
• /
• pp.575-584
• /
• 2006

As the development of total management systems for sites along with site environmental information is becoming standard, the system known as the Site Information and Total Environmental database management System (SITES) has been developed over the last two years. The first result was a database management system for storing data obtained from facilities, and a site characterization in addition to an environmental assessment of a site. The SITES database is designed to be effective and practical for use with facility management and safety assessment in relation to Geographic Information Systems. SITES is a total management program, which includes its database, its data analysis system required for site characterization, a safety assessment modeling system and an environment monitoring system. It can contribute to the institutional management of the facility and to its safety reassessment. SITES is composed of two main modules: the SITES Database module (SDM) and the Monitoring & Assessment (M&A) module [1]. The M&A module is subdivided into two sub-modules: the Safety Assessment System (SAS) and the Site Environmental Monitoring System (SEMS). SAS controls the data (input and output) from the SITES DB for the site safety assessment, whereas SEMS controls the data obtained from the records of the measuring sensors and facilities. The on-line site and environmental monitoring data is managed in SEMS. The present paper introduces the procedure and function of the M&A modules.

• 공학교육연구
• /
• 제11권1호
• /
• pp.85-100
• /
• 2008

이 연구의 목적은 초등학교 학생들을 대상으로 한 'F1 in Schools Program'을 개발하여 적용하여 보고 학생, 학부모, 학교의 반응을 조사하여 현장 적용가능성을 평가하고자 하는데 있다. 충청북도 청주시 소재의 W 초등학교 5학년 15명의 어린이를 대상으로 'F1 in Schools Program'(초등학교 학생용 워크북)을 개발한 후 현장 적용 가능성을 평가하기 위해 2007년 1월 22일부터 2월 2일까지 총 60차시에 걸쳐 수업을 진행하고 학생, 학부모, 학교의 반응을 조사하였다. 본 프로그램에서 활용하고 있는 CAD(Computer Aided Design), CFD(Computation Fluid Dynamics), CAM(Computer Aided Manufacturing), CNC Machine의 프로그램은 학생들이 직접 해볼 수 있는 참여와 신기성과 같은 특성으로 흥미를 끌기에 좋은 소재가 되고 있으나 프로그램을 조작하기에 초등학생의 인지 발달 수준 및 공작 능력이 미치지 못하는 것으로 나타났다. 학생, 학부모, 학교의 프로그램에 대한 만족도는 비교적 높았으나 학생의 경우 시간이 부족하다 응답하였고, 학부모와 학교의 경우 프로그램에 대한 이해가 부족함을 알 수 있었다. 학생들은 프로그램 실시 전보다 실시 후에 자동차의 속력과 관계된 과학적 개념이 향상되는 결과를 얻었다.

• 기술혁신학회지
• /
• 제6권1호
• /
• pp.1-19
• /
• 2003

The mechanism of knowledge production in the basic science has been changed throughout the development process in Korea. During the 1970s, the focus resides in the support of individual scientists while it concentrated on the support of research organization, centered on center of excellence from the 1980s. The change in the sup-porting mechanism to basic science result in the transformation of knowledge production system in the university and impact on the behavior of individual scientists. This paper focuses on the co-evolution process between newly adopted supporting program for basic science and the knowledge production system via the case study of representative program of center of excellence supporting program in Korea.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2005년도 춘계 학술발표회 논문집
• /
• pp.1361-1368
• /
• 2005

In this paper, the theoretical method of measuring the tunnel convergence and underground displacement, the objective indices of assessing safety for tunnel construction, using the fiber optic sensor is studied by developing the program to automatically measure them. The model test of Con'c beam is conducted to evaluate reliability of the fiber optic sensor. Furthermore, using the RS232 communication protocol as well as Visual C# and Visual C++, the programming tools, the program was developed to detect automatically the measured value of the fiber optic sensor, calculate the tunnel convergence and underground displacement, predict the deformed shape of the tunnel, and evaluate loosening zone due to the tunnel excavation.

• Journal of Magnetics
• /
• 제3권3호
• /
• pp.69-73
• /
• 1998

A drum type magnetic separator was designed and optimized by computer simulation. The separator consisted of rotating outer shell of drum, magnetic flux generator drum which was assembled with numbers of disk type magnet holders, and drum axis around which the magnet holders were fixed. NdFeB magnet blocks were inserted into the disks, and the disks were assembled layer by layer along the drum axis. Magnetic circuits of the separator were simulated on the basis of highest magnetic strength, least cost, and high yield of separation by using a Vector Field S/W employing the Opera-2D program. The separator proved a separation yield of 95% in removing fine iron-base particles, and installed at Hot Rolling Mill of Pohang Iron & Steel Co. In Korea.

• Journal of Information Processing Systems
• /
• 제4권4호
• /
• pp.121-132
• /
• 2008

VLSI chips have been tested using various automatic test equipment (ATE). Although each ATE has a similar structure, the language for ATE is proprietary and it is not easy to convert a test program for use among different ATE vendors. To address this difficulty we propose a tester structure expression language, a tester language with a novel format. The developed language is called the general tester language (GTL). Developing an interpreter for each tester, the GTL program can be directly applied to the ATE without conversion. It is also possible to select a cost-effective ATE from the test program, because the program expresses the required ATE resources, such as pin counts, measurement accuracy, and memory capacity. We describe the prototype environment for the GTL and the tester selection tool. The software size of the prototype is approximately 27,800 steps and 15 manmonths were required. Using the tester selection tool, the number of man-hours required in order to select an ATE could be reduced to 1/10. A GTL program was successfully executed on actual ATE.

• Composites Research
• /
• 제29권4호
• /
• pp.167-172
• /
• 2016

$Co_9S_8/reduced$ graphene (CSRG) has been prepared by a facile two step hydrothermal method and used as a supercapacitor electrode material. It is anticipated that the $Co_9S_8$ and reduced graphene oxide (RGO) would serve as a spacer material to each other to stop the agglomeration and simultaneous contribution of electrical double layer capacitance (RGO) and pseudocapacitance ($Co_9S_8$) would provide high electrochemical properties. The chemical analysis has been done by Fourier transform infrared spectroscopy and the morphology is characterised by field emission scanning electron microscopy. CSRG shows a high electrical conductivity of $98S\;m^{-1}$. The symmetric supercapacitor shows a specific capacitance of ${\sim}728F\;g^{-1}$ with a current density of $2A\;g^{-1}$. CSRG also showed an energy density of $25.2Wh\;kg^{-1}$ with a power density of $1000W\;kg^{-1}$.