• 한국게임학회 논문지
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• 제6권3호
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• pp.77-86
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• 2006

본 논문에서는 일반적인 터치스크린의 단점을 보완하고, 새로운 형태의 입력장치로서 뿐만 아니라 게임 등에 이용할 수 있는 가상막을 이용한 가상 터치스크린을 구현했다. 기존의 터치스크린에서 요구되는 물리적인 막이 없이, 두 대의 웹캠만으로 가상막을 설치함으로써 크기의 제한이 없는 영상처리 기반의 가상 터치스크린이다. 본 논문에서 개발한 가상터치스크린은 가격이 저렴하고 쉽게 설치가 가능하여 새로운 형태의 게임을 구현하는데 사용할 수 있는 시스템이다.

• 대한기계학회논문집A
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• 제25권4호
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• pp.610-618
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• 2001

Pantograph, which collects current from cartenary system, is one of the important parts of high-speed train. Kinematic analysis is one of the key technologies for pantograph design and includes joint trajectories, reaction forces, and the required moment of main shaft calculations. The kinematic analysis, however, is very complex and time-consuming process. In this study PC based pantograph kinematic analysis software using graphical user interface tool was developed for the easy evaluations of kinematic characteristics necessary in pantograph design process.

• 교육녹색환경연구
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• 제2권1호
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• pp.1-15
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• 2002

New media is an emerging industry sector. It sits at the nexus of what has become a main vehicle of the Knowledge Based Economy. the crossroads where the use of interactive multimedia technology meets the traditional uses of media. The current Education information Act provided school with PC, multimedia labs and connection to internet. Having such a facility in schools encourage teachers and students to use computers more often. Teachers demand for more educational multimedia contents than they can find in the market. Although there are many good contents, teachers find them unfit or inflexible for their curriculum. The purpose of this study is to identify the elements of standard multimedia studio facilities to develop multimedia contents in primary and secondary schools. The result of this study will provide guidelines for schools to facilitate their multimedia studio for teaching and learning activities, and developing contents for effective use of their facilities.

• Bulletin of the Korean Chemical Society
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• 제35권7호
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• pp.2038-2042
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• 2014

4-(tert-Octyl)phenol derivatives bearing the D-mannitol substructure (6a, 6b, 7) were prepared from $\small{D}$-mannitol and evaluated their anticancer activity against human lung (A549) and prostate (Lncap, Du145, PC3) cancer cell lines. Among derivatives tested, the bis(tert-octyl)phenoxy compound 7 exhibited strongest proliferation inhibitory activities against human cancer cell lines tested, especially high sensitivity to human Du145 prostate cancer cells ($IC_{50}=7.3{\mu}M$).

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.980-986
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• 2007

본 연구는 매우 짧은 차간 간격을 요구하면서 차량 간의 충돌을 피하기 위해서 매우 정확한 속도제어를 필요로 하는 개인 고속 이동 시스템의 운행제어 알고리즘의 검증을 위한 검증 시스템의 설계에 대해서 다룬다. 검증시스템은 모의 차량, 중앙제어 시스템, 모의지상설비, 모니터링 장치로 구성된다. 모의차량은 총 4EA의 서버(노트북)로 구성 하며, 중앙(지역)제어시스템은 산업용 Motorola사(社)의 PowerPC기반 프로세서 모듈 및 I/O 보드 장치로 구성한다. 모의지상설비는 National Instruments社의 PXI 산업용 제어기를 사용하여 구현한다. 설계된 검증시스템의 시험을 위해서 Labview Simulation Interface Toolkit 과 Matlab/Simulink 가 결합된 환경하에서 모의시험을 거친 시험용 알고리즘을 이용한다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 춘계학술대회 논문집 디스플레이 광소자분야
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• pp.147-150
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• 2003

유기발광소자 안에 존재하는 비발광영역(dark spot)의 전압에 대한 영향을 근접장 마이크로파 현미경(near-field scanning microwave microscope)을 이용하여 관찰하였다. 유기발광소자는 glass/indiumtin oxide(ITO)/Cu-Pc/tris-(8-hydroquinoline)aluminum(Alp3)/aluminum(Al)의 기본구조로 제작하였다. 비발광영역은 ITO 기판을 부분적으로 에칭하여서 형성시켰다. Dark spot에 0~15V 전압을 인가시키면서 인가 전압에 따른 dark spot 구조적 및 전기적 특성을 근접장 마이크로파 현미경 Image의 변화와 반사계수인 $S_11$측정을 통하여 연구하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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• pp.222-224
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• 2006

Since most real experimental situations are different from those of the simulations, it is required to modify control rules through experiments owing to uncertainties and unmodeled dynamics of the plant. This paper presents a convenient monitoring system which can display system responses exactly and test the performances of the control system. We design a PID controller using DSP board and propose a monitoring system based on PC and C++ Builder program. With the proposed monitoring system we can easily control the velocity of a DC motor system.

• 전기학회논문지
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• 제61권6호
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• pp.899-904
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• 2012

In recent years, a lot of research was done for earth fault protection in ungrounded dc power supply system. As a result, selective-breaking integrated protective relaying system is developed in progress and is currently field-testing are planned. Algorithm on a PC using PSCAD done a lot of testing before performing field tests, but in this study developed algorithms and functions needed to determine whether they were operating normally. Therefore, simulated system is similar to the actual situation was required and made. selective-breaking algorithm verification and validation was performed with simulator.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.167-169
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• 2008

A 1.2KW Proton Exchange Membrane Fuel Cell(PEMFC) stack(Nexa Power Module) is installed to motor driven general scooter. The 24V, 650W BLDC motor is used for actuator and 2nd battery(24V, 4Ah) is used for stable starting of this motor. The operating information of Nexa Power Nodule is transmitted by RS-232 serial communication to notebook PC, and that data is analysed and displayed by the LabVIEW monitoring system.

• Journal of applied mathematics & informatics
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• 제7권1호
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• pp.269-278
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• 2000

A Boolean function generates a binary sequence which is frequently used in a stream cipher. There are number of critical concepts which a Boolean function, as a key stream generator in a stream cipher, satisfies. These are nonlinearity, correlation immunity, balancedness, SAC(strictly avalanche criterion), PC(propagation criterion) and so on. In this paper, we present the algorithms for generating random nonlinear combining functions satisfying given correlation immune order and nonlinearity. These constructions can be applied for designing the key stream generators. We use Microsoft Visual C++6.0 for our program.