• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2001.07a
• /
• pp.798-801
• /
• 2001

we have investigated a characteristic of a vibration displacement detector, which was made with a photocoupler. Output signals of the detector were dominant at 700Hz of the frequency of vibrator, and It was maximum, when the amplitude of input signal had been at 1.1V. The detector will be used in measuring the surface roughness of substrates.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2001.07a
• /
• pp.511-514
• /
• 2001

We have developed a metal detector, which was made with two Hall-senors. We could detect the minute variation of terrestrial magnetism by the metal detector and the detector was handy to carry because it had been runned by a dry cell. So it will be utilized in finding ferromagnetic substances buried in the earth.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2001.07a
• /
• pp.795-797
• /
• 2001

This paper presents an improved automatic vending machine for ices. Specially, the main topic of this paper is the development of moving parts for carrying ices out of a freezer. In general, carrying ices out of a vending machine causes much cool air losses. The developed vending machine reduces much cool air losses by the improvement of moving parts. Also the machine reduces many mechanical troubles caused by the freezing of mechanically moving parts.

• 제어로봇시스템학회:학술대회논문집
• /
• 1993.10a
• /
• pp.1012-1017
• /
• 1993

In this paper, the instruction set and the architecture of a RISC processor for programmable logic controller is suggested. From the measurement of existing programs, the characteristics of ladder instructions are analyzed. The instruction set is defined so that the existing ladder program can be reused with simple translation. Because bit instructions controls the behavior of word instructions, the processor suits for high level language like SFC. Simulations show that the PLC with the suggested processor is twenty times faster than the PLC with the multi-purpose microprocessor.

• Journal of the Korean Institute of Telematics and Electronics A
• /
• v.28A no.11
• /
• pp.910-914
• /
• 1991

This paper describes the improvement of frequency characteristic of crystal oscillator I.C using Ti-Salicide. The characteristics of transistor(drive current) using Ti-Salicide process are better than Poly-Si process, because the mobility. To know frequency characteristic of oscillator I.C, the simulation is performed using inverter buffer chain of Fan-out 10 TTL. Its result shows at once the generation of normal clock pulse in input signal and the improvement of rising and falling time.

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2004.07a
• /
• pp.482-482
• /
• 2004

• Defense and Technology
• /
• no.3 s.265
• /
• pp.44-51
• /
• 2001

보병화기의 전투효율성 향상을 위해 세계 각국은 소총에서 구경축소, 경량화, 체계화 등 꾸준한 개량발전을 시도하여 왔으나 실제 전투상황하에서의 명중률 증대측면에서는 결정적인 개선을 가져오지 못했다고 평가하고, 소총의 기본 설계개념과 세계 각국의 차기소총 개발현황 및 발전추세에 대하여 개괄적으로 고찰해 보았다. 따라서 이와 함께 현용 K-1A 기관단총, K-2 소총의 Life Cycle(20-30년)을 고려할 때 2000년대 초에는 차기소총의 대체 필요성을 제시하고자 한다.

• Monthly Korean Chicken
• /
• v.16 no.10
• /
• pp.79-81
• /
• 2010

긴 한가위 연휴를 마치고 명절 내내 먹던 차례음식에 질려 이태원으로 발걸음을 뗀다. 집 근처이면서 가장 다양한 메뉴를 만날 수 있는 음식의 천구, 이태원, 골목골목 아주 고급스러운 레스토랑에서부터 길가 선술집, 포장마차까지 직접 들어가지 않더라도 그 앞의 메뉴판 구경만으로도 눈이 즐겁다. 그러던 중 길게 늘어선 줄이 신기하여 보니 케밥집이다. 세계적인 패스트푸드이자 건강식이 된 케밥. 닭고기와 야채를 빵에 싸 칠리소스를 뿌려먹는 터키의 전통음식으로 젊은층, 외국인들이 저녁식사를 대신하고자 주문하고 있었다. 이달의 닭고기 맛집으로 어떨까 하여 메뉴판을 확인하고 닭고기 케밥과 치킨 필라프를 주문하고 식당안으로 들어갔다.

• Proceedings of the Korea Concrete Institute Conference
• /
• 2010.05a
• /
• pp.183-184
• /
• 2010

In this study, it suggested evaluation method of carbonation about crack to occur in an early age. And it compared penetration depth of carbonation with crack size.

• 제어로봇시스템학회:학술대회논문집
• /
• 1991.10a
• /
• pp.730-735
• /
• 1991

In this paper, a graphics system supporting PHIGS and PHIGS+ is suggested and its hardware structure and software are described. The developed graphics system is a multi-processing system that uses 6 i860 RISC CPU's and supports PHIGS and PHIGS+ language in a hardware level. The developed system under tested is able to draw 160, 000 3-D polygones in one second when each polygon has 100 pixels and is shaded with Gouraud shading.