• Journal of the Earthquake Engineering Society of Korea
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• v.17 no.3
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• pp.143-150
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• 2013

The paper introduces Multi-Platform Analysis (MPA) for the seismic performance of a structure controlled by Magneto-Rheological (MR) dampers and presents analytical assessment of the effect of MR damper when taking into account nonlinear behavior of the structure. This paper introduces the MR Damper Plugin that can facilitate communication between MATLAB/Simulink and a finite element analysis tool in order to account for more complex inelastic behavior of the structure with MR dampers. The MPA method using the developed MR Damper Plugin is validated with experimental results from the real-time hybrid simulation. By utilizing the proposed MPA method, the three-story RC structure controlled by MR dampers is more realistically modeled and its performance under seismic loads is investigated. It is concluded that MR damper designed for a linear structure is not effective in a nonlinear structure and can overestimate the effect of MR damper. This work is expected to overcome difficulties in the analytical assessment of structural control strategies for complex and nonlinear structures by obtaining more reliable results.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.11 no.4
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• pp.25-30
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• 2012

The transportation is almost dependent on a single fuel petroleum with transportation energy dilemma. Hybrid Electric Vehicle(HEV) technology holds more advantages on efficiency improvements for petroleum consumption at the transportation. And bearing is recognized as the important component of gearbox. Gearboxes for HEV transmission have been ensured the highest reliability over some years in withstanding high dynamic loads. At the same time, the demands of lightweight design and cost minimization are required by thought-out design, high-quality material, superior production quality and maintenance. In order to design a reliable and lightweight gearbox, it is necessary to analyze bearing rating life methods between standard and different bearing companies with calculation methods for modification factors. In this paper, the influence of life time of bearings will be pointed out. Bearing contact stress and load stress distribution of HEV gearbox are obtained and compared with Romaxdesigner and BearinX. And the unequal wear of the left bearing for the gearbox intermediate shaft is investigated between simulation and test.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.259-261
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• 2021

In this paper, VR smart factory XR content tailored to process execution scenarios was produced to reflect the characteristics of XR content, which is highly dependent on HDM, unlike general-purpose content software for UX/UI design and usability evaluation of digital twin-based XR content in manufacturing. HMD equipment called Qculus Quest2 was used to perform the process execution task scenario for XR content, and content production was made through Unity Engine and SteamVR Plugin.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.279-282
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• 2004

국악 샘플링 신디사이저 VST 플러그인 프로그램 보호방법은 국내 최초로 한양대학교 뉴미디어 뮤직 전공에서 개발된 국악기 샘플링 신디사이저의 배포를 위하여 개발되었다. 소프트웨어가 설치된 컴퓨터의 고유인식 번호를 배포자의 서버로 전송, 암호화된 인증키를 최종 사용자에게 다시 부여하는 방식으로, 문화 컨텐츠 진흥원의 지정과제인 "국악연주 가상환경용 입체음향효과 및 국악기 음 합성기술개발"의 사업화에 큰 도움이 되기를 바란다.

• Convergence Security Journal
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• v.19 no.4
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• pp.43-53
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• 2019

Recently, a number of military intranet infiltrations suspected of North Korea have been discovered. There was a problem that a vulnerability could occur due to the modification of user authentication data that can access existing military information systems. In this paper, we applied mutual verification technique and API (Application Programming Interface) forgery / forgery blocking and obfuscation to solve the authentication weakness in web browsers that comply with FIDO (Fast IDentity Online) standard. In addition, user convenience is improved by implementing No-Plugin that does not require separate program installation. Performance tests show that most browsers perform about 0.1ms based on the RSA key generation rate. In addition, it proved that it can be used for commercialization by showing performance of less than 0.1 second even in the digital signature verification speed of the server. The service is expected to be useful for improving military information system security as an alternative to browser authentication by building a web secure storage.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.13
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• pp.5325-5330
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• 2014

Background: Chronic myelocytic leukemia is a disease that threatens both adults and children. Great progress has been achieved in treatment but protein-protein interaction networks underlining chronic myelocytic leukemia are less known. Objective: To develop a protein-protein interaction network for chronic myelocytic leukemia based on gene expression and to predict biological pathways underlying molecular complexes in the network. Materials and Methods: Genes involved in chronic myelocytic leukemia were selected from OMIM database. Literature mining was performed by Agilent Literature Search plugin and a protein-protein interaction network of chronic myelocytic leukemia was established by Cytoscape. The molecular complexes in the network were detected by Clusterviz plugin and pathway enrichment of molecular complexes were performed by DAVID online. Results and Discussion: There are seventy-nine chronic myelocytic leukemia genes in the Mendelian Inheritance In Man Database. The protein-protein interaction network of chronic myelocytic leukemia contained 638 nodes, 1830 edges and perhaps 5 molecular complexes. Among them, complex 1 is involved in pathways that are related to cytokine secretion, cytokine-receptor binding, cytokine receptor signaling, while complex 3 is related to biological behavior of tumors which can provide the bioinformatic foundation for further understanding the mechanisms of chronic myelocytic leukemia.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.213-214
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• 2016

본 논문에서는 모바일환경을 활용하여 인터넷 접근이 어렵고 인터넷 사용이 불편한 사용자를 중심으로 개발한 일상생활에서의 냉장고 정리, 쾌척 등과 같이 냉장고 사용의 편리성을 위하여 안드로이드 5.1 버전의 스마트폰 Application으로 개발하였다. 이를 해결할 시스템을 구현하기 위해 GCM(Google Cloud Messaging) Server를 활용하였고, 서버에서 특정 시간이 도래되어 클라이언트로 메시지를 전송하면 사용자의 안드로이드 폰으로 푸시 메시지(Push Message)가 수신되는 방식으로 구현하였다. 안드로이드 환경을 기준으로 실행하기 위해 APACHE CORDOVA를 기반으로 CORDOVA PLUGIN에 있는 Camera 기능을 사용하였고 사용자 안드로이드에 있는 사진을 업로드하거나 즉석에서 사진을 촬영하여 앱에 올릴 수 있는 기능을 사용자 편의성을 고려하여 개선하였다. 사용자의 편리성, 가독성 등을 고려하여 개발함으로써 사용자는 활용성이 높은 사용자 인터페이스를 통해 냉장고를 정리하고 관리할 수 있을 것으로 기대하고 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06d
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• pp.316-321
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• 2010

웹 2.0의 기술이 보급됨에 따라 소셜 네트워크 서비스에 대한 관심이 증가하였다. 국내에서는 싸이월드, 미투데이 등과 같은 서비스가 널리 사용되고 있으며 최근 급부상한 트위터는 여러 분야에서 관심을 받고 있다. 트위터는 팔로워나 트윗 등 활동 정도에 따라 랭킹 서비스가 제공되고 있지만 랭킹은 그들 사이의 관계를 세부적으로 나타내지 못한다. 본 논문에서는 트위터의 사용자들 사이에 존재하는 관계를 시각적으로 나타내는 도구에 대해 개발한다. 국내 사용자 중 팔로워의 랭킹에 따른 사용자를 이용하고, 시각화를 위해 생물학적 데이터를 네트워크로 나타내는 Cytocape 플랫폼을 사용한다. 사용자 간의 관계를 나타내는 네트워크를 통하여 온라인상에서 영향력 있는 사용자들의 관계를 나타내고 그들의 관계를 수치로 분석한다. 또한 복잡한 네트워크로부터 선택된 노드와 관련된 연결만을 추출하는 기능을 제공하여 온라인상의 관계를 상세하게 나타낸다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.398-402
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• 2007

USN은 각종 센서를 이용하여 무선으로 정보를 수집할 수 있도록 구성한 네트워크를 말한다. 센서네트워크 노드를 위하여 설계된 운영체제인 TinyOS에서 제공하는 TOSSIM 시뮬레이터를 이용하면 응용 프로그램을 개발하면서 시뮬레이션을 수행하고, 데이터를 분석하여 문제점을 미리 발견하고 이를 보완할 수 있다. TOSSIM에서는 그래픽 유저 인터페이스를 제공하는 TinyViz와 TOSSIM 스크립트 언어인 Tython을 이용하여 다양한 시뮬레이션이 가능하다. 본 논문에서는 능동적인 시뮬레이션 모델을 제공하기 위하여 Tython 스크립트 언어를 이용하여 TinyViz 플러그인으로서 PeriodicADCPlugin을 설계하였다. PeriodicADCPlugin은 그래픽 유저 인터페이스 상에서 모트들에게 다양한 센서 값을 여러 가지 방법으로 간편하게 입력하는 기능을 제공한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.866-868
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• 2011

In this paper, we propose an implementation of user interaction effect of web application using jQuery. jQuery is a very popular and extensible JavaScript library. It is strong in controlling DOM(Document Object Model), events and Ajax. But, it is poor at advanced effect of web user UI(User Interface). Implementing advanced effects need to extend jQuery or some skills. So, our proposal is a good way to implement UI effects.