• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2000년도 가을 학술발표회 논문집(II)
• /
• pp.1069-1072
• /
• 2000

'2002 FIFA Worldcup will jointly open in Korea and Japan. So 10 Stadiums have to be constructed in Korea. In this Research the PC situation, characteristic and construction method of 3 stadiums(Jeonju, Kwangju, Taejeon) will be compared.

• 정보처리학회논문지A
• /
• 제10A권4호
• /
• pp.411-418
• /
• 2003

현재는 범용적 다기능을 갖추었던 PC 시대가 지나가고, 새로운 형태의 컴퓨팅 디바이스들이 고안되어 개발되고 있다. 이러한 현상은 모든 기능을 갖춘 무거운 PC 보다는 사용 빈도가 높은 필수 기능만을 탑재할 새로운 개념의 단말기에 대한 소비자의 요구가 증대되고 있기 때문이다. 본 과제에서는 오픈소스 라이센스와 강력한 개발자 그룹을 가진 리눅스를 사용하였다. 본 논문에서는 다양한 응용 분야에서 이용될 수 있는 Post-PC 플랫폼의 실제 설계, 구현에 대하여 기술하였으며, 실제적인 개발 사례로서 “디지털 가전형 Post-PC 기술 개발 사업”을 설명하였다. 본 논문은 제 4 과제인 “디지털 가전용 Post-PC 시스템 통합 플랫폼 개발과 Test bed 구축 및 통합 시험 기술”을 중점적으로 개발 내용을 서술하였다.

• 한국군사과학기술학회지
• /
• 제6권4호
• /
• pp.45-55
• /
• 2003

Weather conditions have played a vital role in a war. Many historical records reported that the miss use of weather information is the main reason of the lost a war. In this study we demonstrated the possibility of applying the numerical weather prediction system(NWPS) for military operations. The NWPS consists of PC-cluster as a super computer, data assimilation system ingesting many remote sensing observation, and graphic systems. High resolution prediction in NWPS can provide useful weather information such as wind, temperature, sea fog and so on for military operations.

• 대한의용생체공학회:학술대회논문집
• /
• 대한의용생체공학회 1997년도 춘계학술대회
• /
• pp.127-130
• /
• 1997

Phase-contrast(PC) methods have been used for quantitative measurements of velocity and volume flow rate. In addition, phase contrast cine magnetic resonance imaging (MRI) combines the flow dependent contrast of PC MRI with the ability of cardiac cine imaging to produce images throughout the cardiac cycle. In this method, the through-plane velocity has been encoded generally. However, the accuracy of the flow data can be reduced by the effect of flow direction, finite slice thickness, resolution, pulsatile flow pattern, and so on. In this study we calculated the error caused by misalignment of tomographic plane and flow directon. To reduce this error and encode the velocity for more complex flow, we suggested 3 directional velocity encoding method.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2003년도 가을 학술발표회 논문집
• /
• pp.207-210
• /
• 2003

As reviewing of current trend on PC connection details, owing to effective stress transfer in the connection, it grow to increase that use of mechanical splices, reinforcements or welded splices, and prestressing. However such devices as reinforcement, mechanical splices entail not only more cost resulted from materials but also extra construction process so as to cause PC used method to lower competition against conventional method. Therefore more enhanced connection details which help working process simplified and construction cost reduced. In this research, as replace 9.3mm 7strand for reinforcement, it is attempt to devise connection detail which makes workability improve and confirm effective stress transfer in the region of connection. The experimental research is proceeded by partial tension test of specimen. The splice lengths of 7strand is decided to be variations. The flexural capability is verified to depend on spice length. An an appropriate splice length could be also determined as a precedent research on improving PC connection detail.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2017년도 춘계 학술논문 발표대회
• /
• pp.120-121
• /
• 2017

Generally, slump of plain concrete slab is about 120~150mm and slump loss is easy to occur. So, water is added to concrete because this method is convenient for Placing. In order to solve this problem, performance evaluation of concrete using improvement type PC admixture was carried out. Target slump is 210mm and compressive strength is 18MPa. As a result, slump reference value was satisfied 60 minutes after placing and 7-day compressive strength was 21~25MPa.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2002년도 합동 추계학술대회 논문집 정보 및 제어부문
• /
• pp.443-449
• /
• 2002

In this paper, we propose a programmable method that can connect the control network with the Internet by using an ordinary PC, which is operated by GNU/LINUX. We make a physical connection between an ordinary PC and control network. Then, a PC can be bound with a particular control network. Moreover, numerous PCs that are bound with particular control networks have addresses of there own on the Internet. So, these PCs are connected each other very well. Consequently, all control networks can be observed and controlled with data transfer between these PCs.

• 한국통신학회논문지
• /
• 제12권5호
• /
• pp.492-504
• /
• 1987

Binary Decision방법은 출력을 얻는데 요구되는 결정스텝이 최대 입력변수의 수를 넘지 않도록 한다. BD-PC모듈은 스캔 스피드를 개선하기 위해 이 방법을 이용하여 설계제작되었다. Binary Decision방식에 수반되는 메모리문제를 개선하기 위해 컴파일러 시스템을 개발하였다. 또한, 컴파일된 BD-PC목적프로그램을 BD머신의 메모리에 로디하기 위해 MDS와 BD-PC모듈간에 통신채널을 구성하였다.

• 산업경영시스템학회지
• /
• 제28권3호
• /
• pp.10-17
• /
• 2005

In this paper, the life cycle assessment(LCA) methodology is applied to Personal Computer's basic materials in order to analyze the impact to the environment. LCA data collection is carried out taking into account on main materials of PC's parts and component. And the impact assessment is the environmental burden on three factor into air emission(CO2, SOx, NOx), five factor into water emission(BOD, COD, SS, N, P), and three factor on transported substance(cl, NH4, SO4). According to the result, the environmental burden of PC's basic materials was proved to be used total energy 6,285Mj and emitted CO2 259.8kg, SOx 3,571g, NOx 330g, COD 1,328g, P 246g, N 2,434g. And this paper was presented the problems of its disposition-incinerating, landfill, and recycling.

• 한국정보기술학회 영문논문지
• /
• 제8권2호
• /
• pp.79-87
• /
• 2018

The current PC user authentication uses character password based on user's knowledge. However, this can easily be exploited by password cracking or key-logging programs. In addition, the use of a difficult password and the periodic change of the password make it easy for the user to mistake exposing the password around the PC because it is difficult for the user to remember the password. In order to overcome this, we propose user gesture recognition and challenge-response authentication. We apply user's hand gesture instead of character password. In the challenge-response method, authentication is performed in the form of responding to a quiz, rather than using the same password every time. To apply the hand gesture to challenge-response authentication, the gesture is recognized and symbolized to be used in the quiz response. So we show that this method can be applied to PC user authentication.