• IT SoC Magazine
• /
• 통권10호
• /
• pp.11-16
• /
• 2006

지난 11월 초 COEX에서는 IT-SoC와 차세대PC의 최신 기술과 제품을 살펴 볼 수 있는 가 열렸다. 올해 행사는 국내 유일의 IP/SoC 전문전시회의 위상을 다시 한 번 확인하는 계기가 되었으며, 해외 업체들의 관심도 차츰 높아져 국제전시회로의 도약을 준비하는 발판을 마련하였다는 의의를 지니고 있다.

• 제어로봇시스템학회논문지
• /
• 제6권5호
• /
• pp.415-425
• /
• 2000

An open architecture manufacturing strategy intends to integrate manufacturing components on a single platform so that a particular component can be easily added and/or replaced. Therefore, the control scheme based upon the open architecture concept is hardware-independent. In this paper, a modular and object oriented approach for a PC-based open robot control system is investigated. A standard reference model for robot systems, which consists of three modules; hardware module, operating system module, and application software module, is first proposed. Then, a PC-based Open Robot Controller(PC-ORC), which can reconfigure robot control systems in various production environments, is developed. The PC-ORC is built upon the object-oriented method, and allows an easy implementation and modification of various modules. The PC-ORC consists of basic softwares, application objects, and additional hardware device on the PC Platform. The application objects are: sequencer, computation unit, servo control, ancillary equipment, external sensor control, and so on. In order to demonstrate the applicability of the PC-ORC, the proposed PC-ORC configuration is applied to an industrial SCARA robot system.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2008년도 춘계 학술논문 발표대회
• /
• pp.15-19
• /
• 2008

The use of Precast Concrete (PC) stairways is increasing to replace existing Reinforced Concrete (RC) stairways for the faster construction and the better quality control. Among several already developed PC stairway construction methods, RC Core Sequential Construction Method by Using PC Stairways (COSEC) has advantages of 1) allowing core of a building to be built prior to PC stairways so that two different procedures will not interfere with each other, and 2) having a newly developed joint connection with the core so that the RC core and PC stairways can be easily put together. In this paper, cases of several construction sites with the PC stairways method are analyzed. The elements of the developed method are described for further application and improvement.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2006년도 추계 학술발표회 논문집
• /
• pp.801-804
• /
• 2006

Polycarboxylate type superplasticizers(PC) have got widely used for making not only high performance concrete but low grade concrete as well. It is known that fluidity of cement with PC is affected by the characteristics of cement especially sulphate ion concentration and hydration activity. But the characteristics of PC also affect the fluidity. The fluidity of cement mortar with various types of PC was measured and critical dosage(CD) and dispersing ability(DA) was calculated. CD and DA is strongly dependent on the type of PC. And the variation of fluidity on time was affected by the type of PC also. So, it is advisable to investigate the property of PC before production of concrete and adjust it to meet the requirements of concrete depending on the materials, the time of transport and so on.

• IT SoC Magazine
• /
• 통권3호
• /
• pp.26-27
• /
• 2004

• IT SoC Magazine
• /
• 통권9호
• /
• pp.34-47
• /
• 2005

• IT SoC Magazine
• /
• 통권3호
• /
• pp.11-11
• /
• 2004

• IT SoC Magazine
• /
• 통권4호
• /
• pp.50-51
• /
• 2004

• 한국컴퓨터정보학회논문지
• /
• 제20권12호
• /
• pp.61-66
• /
• 2015

In this paper, we draw a security assessment by analyzing possible vulnerabilities of the designated PC service which is supposed for strengthening security of current online identification methods that provide various areas such as the online banking and a game and so on. There is a difference between the designated PC service and online identification methods. Online identification methods authenticate an user by the user's private information or the user's knowledge-based information, though the designated PC service authenticates a hardware-based unique information of the user's PC. For this reason, high task significance services employ with online identification methods and the designated PC service for improving security multiply. Nevertheless, the security assessment of the designated PC service has been absent and possible vulnerabilities of the designated PC service are counterfeiter and falsification when the hardware-based unique-information is extracted on the user's PC and sent an authentication server. Therefore, in this paper, we analyze possible vulnerabilities of the designated PC service and draw the security assessment.

• ETRI Journal
• /
• 제9권4호
• /
• pp.184-191
• /
• 1987

PC는 현재 stand-alone 형태로 사용되는 것이 주류이며 통신용 터미널로서는 일반화되어 있지 않으나, PC를 통신망에 접속하여 다양한 통신 서비스를 제공받을 수 있을 것이다. 본고에서는 PC 통신 서비스를 개괄적으로 다루고 있으며, 특히 각국의 현황 및 NTT의 경우를 한 사례로 기술하였고 한국전자통신연구소의 개발계획(안)에 대하여 간략히 소개하고자 한다. 계속해서 PC 통신을 위한 기술적 측면에 관해서는 차후에 게재할 예정이다.