• The Transactions of the Korea Information Processing Society
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• v.4 no.1
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• pp.87-96
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• 1997

As the society features evolve to information society, some advanced countries promote to construct the gigabit information and communication networks, to develop system software to operate these networks, and to develop application software to help end-user-daily-life as information infrastructure. In this paper, we will present the development methodologies of the Gigabit Information-processing and Networking Technology(GIANT) and the special features of configuration management system applied to GIANT project, and suggest some proposals about its utilization with respect to systems engineering point of view.

• Journal of Electrical Engineering and Technology
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• v.12 no.4
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• pp.1435-1441
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• 2017

Distributed generation (DG) in the future will play an important role in the electricity supply systems, in wich can provide DG capacity from a few hundred kW to tens of MW. However, it is connected to the local power grid, DG will have certain influence on the power quality of the power grid. One of the most significant effects is that they will change the configuration of the local power grid as well as affecting the operation mode of the grid. This paper presents a method of finding the optimal open loop, analyzing and selecting the appropriate mode of operation to reduce power losses of power distribution networks that includes DG.

• Proceedings of the KIEE Conference
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• 1999.07c
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• pp.1450-1452
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• 1999

This paper presents the method of determination for optimal underground power distribution system in our country. To get optimal system, it is necessary to evaluate reasonably important factors such as installation cost, reliability index, customer interruption cost, convenience of installation and system flexibility. This study also described the new method which was applied to UI-San industrial park as a case study.

• Journal of architectural history
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• v.17 no.1
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• pp.47-64
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• 2008

The object of this research is to examine the planning principles of Sangju which has an old history The results of the investigation are as follow 1. Sangju placed on the plains in the castle, it is established in Korea Dynasty 2. The formation of Sangju is infruenced Feng-shui. They plants Chestnuts against centipede mountain 3. Sangju is similar to the configuration of the another city in Feng-shui and elements of Component. But, many buildings(jin-Young(Military site), Choong-Ui-Dan, Choong-Yeol-Sa) are associated with the war in Sangju. 4. The City hall is located on the west side of the hotel(Kaek-Sa). It is located on Wang-San which is a place where citizens with symbolism. So, the City hall is higher than Kaek-Sa 5. The cruciform style road which connected with 4 gates was formed in the castle.

• International Journal of Internet, Broadcasting and Communication
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• v.10 no.2
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• pp.51-59
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• 2018

Health care has attracted a lot of attention, recently due to an increase in life expectancy and interest in health. Various biometric data of the user are collected by using the air pressure sensor, gyro sensor, acceleration sensor, and heart rate sensor to perform the Smart Health Care Activity Tracker function. Basically, smartphone application is made and tested for biometric data collection, but the Arduino platform and bio-signal measurement sensor are used to confirm the accuracy of the measured value of the smartphone. Use the Google Maps API to set user goals and provide guidance on the location of the user and the points the user wants. Also, the basic configuration of the main UI is composed of the screen of the camera, and it is possible for the user to confirm the forward while using the application, so that accident prevention is possible.

• Bulletin of the Korean Chemical Society
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• v.29 no.9
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• pp.1839-1842
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• 2008

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.911-914
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• 2007

최근 홈 네트워크 기술의 발달로 다양한 홈 네트워크 장치들이 개발되고 있다. 하지만 홈 네트워크 장치들을 제어하는 어플리케이션은 로컬에서만 가능하거나 특정한 기기와 그 플랫폼에 맞는 프로그램을 설치해야만 장치의 제어가 가능하다. 본 논문에서 이러한 문제점을 보안하기 위해 웹 서비스를 이용한 홈 네트워크 장치의 원격 제어 시스템의 구성과 웹 브라우저를 통한 웹 시나리오 빌더를 제안한다. 제안한 웹 시나리오 빌더는 네트워크 카메라로 댁내 상황을 알려주고, 시나리오를 제어 가능하게 하는 등 다양한 기능을 제공한다. 그리고 타블렛이나 터치스크린으로도 조작할 수 있는 간단한 UI 를 제공하며 웹 서비스를 이용하므로 PDA 나 모바일 기기로의 확장이 가능하다.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.75-87
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• 2021

The purpose of this study is to derive the characteristics of interaction design for each stage of content composition so that it can be referred to in the planning and production of virtual reality safety education contents. It was confirmed that each of the following interaction design features was found in the three configuration steps: acquisition of situation response procedure knowledge, accident situation experiential learning, and content confirmation and evaluation. First, it was revealed that the quality of experience was controlled by increasing the fidelity of behaviors and reducing general and repetitive behaviors in order to emphasize the educational content-related experiences in the learner experience stage. Second, in order for learners to easily recognize main interaction objects in order to acquire information on safe behavior procedures in unfamiliar environments, use of spatial UI or signifiers using arrows or symbols, posts that specifically instruct actions, and multisensory signals Therefore, it was found to be important to emphasize essential actions in a way that lowers the degree of freedom of user experience, and the proportion of non-realistic interactions for cognitive interactions was found to increase. Lastly, in the confirmation and evaluation stage of the experience, it is important to use the meta UI to alleviate negative experiences such as physical damage after experiencing a safety accident situation,

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.17 no.1
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• pp.76-81
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• 2024

Recently, agricultural methods are changing from experience-based agriculture to data-based agriculture. Changes in agricultural production due to the 4th Industrial Revolution are largely occurring in three areas: smart sensing and monitoring, smart analysis and planning, and smart control. In order to realize open-field smart agriculture, information on the physical and chemical properties of soil is essential. Conventional physicochemical measurements are conducted in a laboratory after collecting samples, which consumes a lot of cost, labor, and time, so they are quickly measured in the field. Measurement technology that can do this is urgently needed. In addition, a soil analysis system that can be carried and moved by the measurer and used in Korea's rice fields, fields, and facility houses is needed. To solve this problem, our goal is to develop and commercialize software that can collect soil samples and analyze the information. In this study, basic soil composition measurement was conducted using soil composition measurement sensors consisting of hardness measurement and electrode sensors. Through future research, we plan to develop a system that applies soil sampling using a CCD camera, ultrasonic sensor, and sampler. Therefore, we implemented a sensor and soil analysis UI that can measure and analyze the soil condition in real time, such as hardness measurement display using a load cell and moisture, PH, and EC measurement display using conductivity.

• Journal of Digital Contents Society
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• v.14 no.4
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• pp.505-511
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• 2013

Recently, cloud computing is being emerged paradigm that a support computing resource flexible and scalable to users as the want in distributed computing environment. Actually, cloud computing can be implemented and provided by virtualization technology. In this paper, we studied open source based cloud computing and built a educational practice system through cloud computing. Virtualization-based cloud computing provides optimized computing resources, as well as easy to manage practical resource and result. Therefore, we can save the time for configuration of practice environment. In the view of faculty, they can easily handle the practice result. Also, those practice condition reuse comfortably and apply to various configuration simply. And then we can increase capabilities and availabilities of limited resources.