• Journal of the Korean Society for Precision Engineering
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• v.13 no.5
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• pp.104-114
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• 1996

For the improvement of productivity, the reduction of cost and time for manufacturing is mandatory, especially in the field of electromic industry. The study is concerned with a practical means of systematic assistance to formability estimation and selection of reliable design specification for electronic sheet metal parts. The objective of this research work is to develop a simulation system which hops to analyze the target processes with the finite element method and to acquire available design data quickly and exactly. The simulation system developed in the study consists of design verification, selection of optimal combination of parameters, knowledge acquisition and graphical user interface(GUI). Design verification is automatically carried out by using the finite element method. A data base management system and nomograms are utilized for knowledge acquisition. The developed system has been applied to some major sheet metal forming operations such as flanging, embossing, bending and blanking. According to the simulated results, the validation of the target processes has been confirmend. Analysis data, estimation rules of formability and graphical representation of the analysis have been employed for the designer's understanding and evaluation, thus providing a practical means of robust design and evaluation of forma- bility for producing electronic sheet metal parts.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.184-186
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• 2011

부하 모델링을 위해서는 구성요소기반 부하모델링과 측정기반 부하모델링 두 가지 방법이 사용된다. 구성요소기반 부하모델링은 모선에 부하의 구성비에 기반으로 하는 부하모델 기법이고, 측정기반 부하모델링은 부하가 설치된 모선의 전압과 소비전력의 측정값으로부터 관계를 수학적으로 모델링하는 기법이다. 본 논문에서는 부하모델을 위해 복합부하모델이 적용되었다. 복합부하모델은 정적부하모델과 동적부하모델을 모두 포함하고 있으며, 정적부하모델로서는 ZIP 모델이 사용되고, 동적 부하모델로는 유도전동기 모델이 사용되었다. 측정기반 부하모델의 파라미터 추정을 위해 TSAT(trensient security assessment tool) 프로그램으로부터 얻은 측정데이터를 이용해 파라미터 추정을 한다. 또한 사용자 편의를 위한 GUI(graphical user interface)의 적용을 통한 부하모델 파라미터 추정 프로그램을 개발하였다.

• Journal of the Korean Society for information Management
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• v.14 no.1
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• pp.207-222
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• 1997

This study is aimed at design and implementation of data format for non-book materials in the field of library user interface. The ba-sic data elements were complied with KORMARC and some amend-ments with detailed expansions were applied for development of the use of at libraries. The data formats of various types of media such as books, audio materials, image data, pamphlets, posters which stored in art library were designed respectively through the use of Graphical User Interface.

• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.694-698
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• 2005

본 연구에서는 우리나라 5대강 유역에 대한 홍수예경보시스템의 홍수추적방법으로 이용되고 있는 물리적인 모형인 저류함수법의 한계점을 극복하고, 영산강 유역의 본류를 대표하는 나주지점과 황룡강 유역을 대표하는 선암지점에 대하여 유역의 수문학적 구조를 나타내지 않는 인공신경망 이론을 이용하여 강우-유출 과정의 비선형 모형을 개발하였다. 또한, 신속한 홍수유출량 예측과 예측 결과에 따른 현장 적용이 가능하도록 CS(Client-Server) 기반에서 인공신경망에 대한 원시코드(source code)를 GUI(Graphical User Interface)화하여 홍수예측시스템(Flood Forecasting System : FFS)을 개발하였다. 본 연구결과 나주지점에서는 Model II의 ANN_NJ_9 모형이 선암지점에서는 Model III의 ANN_SA_9 모형이 강우-유출 특성을 가장 잘 반영하였다. 또한, 본 연구에서 개발한 GUI_FFS에 대하여 기 확보된 2004년도 강우 및 유출량 적용한 결과 0.98이상의 $R^2$값을 보임으로서 향후 수자원 및 하천계획 수립과 그에 따른 운영 및 관리에 효율성을 더할 수 있을 것이라 판단된다.

• Journal of Advanced Navigation Technology
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• v.22 no.5
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• pp.384-390
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• 2018

This paper introduces a MATLAB graphical user interface (GUI) based software for analysis of korea augmentation satellite system (KASS) availability performance. This software uses minimum variance (MV) estimator and Kriging algorithm to generate integrity information such as user differential range error (UDRE) and grid ionospheric vertical error (GIVE). The information is offered to ground and aviation users in Korean region. The software also gives accuracy data, protection level data and availability map about each user position by using the integrity information. In particular the software calculates the protection level along a path of aircraft. We verified the result of protection level of aviation user by comparing them with the results of SBASimulator#2, which is a simulation tool of european geostationary navigation overlay service (EGNOS). As a result, the protection level error between the result of our software and the SBASimulator#2 was about 2% which means that the result of our software is accurate.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.788-791
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• 2002

The present Web surroundings is composed of HTML(Hypertext Mark-up Language) and thereby users obtains web informations mainly in GUI(Graphical User Interface) environment by clicking mouse in order to keep up with hyperlinked informations. However it is very inconvenient to work in this environment comparing with easily accessed one in which human's voice is utilized for obtaining informations. Using VoiceXML, resulted from XML, for supplying the information through telephone on the basis of the contemporary matured technology of voice recognition/synthesis to work out the inconvenience problem, this paper presents the research results about VoiceXML Web Browser designed and implemented for realizing its technology.

• Selected Papers of The Society of Naval Architects of Korea
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• v.2 no.1
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• pp.129-139
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• 1994

This paper describes a design model for the conceptual design of ships. Existing design models have problems such that their operating mode of batch versions cannot reflect the design procedures in reality. Reliability of the results is low because the performance estimations are based mainly on empirical formulas. To improve the problems of existing design models, a new design model has been developed. The new model consists of an interactive user interface, a database of main engines, a database of particulars of existing ships, and ten modules for performance estimations. To develop such a user-oriented system, the concept of graphical user interface (GUI) is adopted.

• Journal of the Korea Society for Simulation
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• v.20 no.1
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• pp.107-116
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• 2011

Recently, femtocell has been concerned as one of effective solutions to relieve shadow region and provide high quality services to users in indoor environments. Even though femtocell offers various benefits to cellular operators and users, many technical issues, such as interference coordination, network synchronization, self-configuration, self-optimization, and so on, should be solved to deploy the femtocell in current network. In this paper, we develop a simulator for evaluating performance of long term evolution (LTE) femtocell systems under various interference scenarios. The simulator consists of a main-module and five sub-modules. The main-module connects and manages five sub-modules which have the functionality managing user mobility, packet scheduling, call admission control, traffic generation, and modulation and coding scheme (MCS). To provide user convenience, the simulator adopts graphical user interface (GUI) which can observes simulation results in real time. We expect that this simulator can contribute to developing effective femtocell systems by supporting a tool for analyzing the effect of interference between macrocell and femtocell.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8691-8699
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• 2015

With the technology of our time growing sophisticated everyday, softwares advance rapidly in accordance. Reflecting this trend, researches on Usability of S/W GUI(Graphical User Interface) is actively taking place. However, despite the active researches on such topic, Usability study of S/W GUI for weapon system remains insufficient. For such reason, this paper intends to focus on drawing evaluation factors as well as priority of design factors for Usability of S/W GUI for weapon system. For an accurate and reliable result, Usability evaluation attributes & design factors were assessed by professionals. Moreover, by incorporating AHP(Analytical Hierarchy Process) and Matrix analysis, each evaluation attributes' level of importance and relation between design factors & usability attributes were assessed to draw final design priority. As a result, the importance of Informativity, Accessibility, and Visibility were derived as 0.127, 0.121, 0.108, and selected to be the foremost priority for evaluating. This research could be utilized as foundation for usability evaluation of S/W GUI on weapon system.

• Journal of the Korean Data and Information Science Society
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• v.19 no.2
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• pp.519-529
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• 2008

Many statisticians have been using object-oriented languages such as S-PLUS, R, and MATLAB to make programs for new data analysis methods. S-PLUS and R are slower in computation as well as in processing large data sets than MATLAB. Recently MATLAB is often used for developing statistical analysis programs owing to its fast computing ability and abundant mathematical algorithm modules. Sometimes it is hard for non-statistician to understand MATLAB programs which are developed by statisticians. Therefore Graphical User Interface(GUI) is needed to facilitate the usage of MATLAB codes. In this paper, we introduce how to develop a GUI for MATLAB codes which is executable on Windows with examples.