• Proceedings of the KIEE Conference
• /
• 2005.07b
• /
• pp.1808-1810
• /
• 2005

21세기는 정보화 시대로써 인터넷을 기반이 산업과 가정기기의 시설이 늘어나고 있는 추세이다. 아직까지 인터넷 기반의 시설이 많지는 않지만 곧 '유비쿼터스 네트워크 사회'로 접어들기 시작 하면 가정과 산업현장에서는 언제, 어디서라도 기기와 연결되는 것으로, 시간의 제약에서 벗어나 인간은 보다 풍요로운 생활의 실현을 가능하게 할 것이다. 또한 산업 현장에서는 실시간으로 관리기기의 상태를 파악하고, 데이터를 수집을 현장에 없어도 인터넷으로 할 수 있다. 장시간 산업 현장을 비우더라도 인터넷을 이용하여 산업 현장에서 일하는것과 같은 현상을 줄 수 있다. 따라서 본 논문에서는 MC9S12NE64를 이용하여서 소형의 웹서버를 구축하였다. 인터넷 웹 브라우저를 이용한 원격제어를 위해서는 MC9S12NE64를 서버로 이용하고 PC의 웹서버를 클라이언트로 사용하였다. 클라이언트인 PC에서 인터넷 웹 브라우저를 이용하여 서버인 MC9S12NE64로 접근을 하여 I/O 포트를 제어 하였다.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
• /
• v.26 no.12
• /
• pp.894-898
• /
• 2013

Zinc oxide(ZnO) was sputtered on various glass and flexible substrates such as polyethylene terephthalate(PET) and polycarbonate(PC). A Q-switched $Nd:YVO_4$ laser with a wavelength of 1,064 nm was used for the direct etching of ZnO films. It was possible to obtain laser etched line patterns on the ZnO films on PC substrate at some specific laser beam conditions. In the flexible substrates, more thermal energy of laser beam is expected to be spreaded for the etching process.

• Journal of Institute of Control, Robotics and Systems
• /
• v.12 no.3
• /
• pp.277-283
• /
• 2006

A recently proposed method for stabilizing haptic interfaces and teleoperation systems was tested with a 'PHANToM' commercial haptic device. The 'Passivity Observer' (PO) and 'Passivity Control1er' (PC) stabilization method was applied to stabilize the system but also excited a high frequency mode in the device. To solve this problem, we propose a method to use a timevarying desired energy threshold instead of fixed zero energy threshold for the PO, and make the actual energy input follow the timevarying energy threshold. With the time-varying energy threshold, we make the PC control action smooth without sudden impulsive behavior by distributing the dissipation. The proposed new PO/PC approach is applied to PHANToM with high stiffness (K = 5000N/m), and stable and smooth contact is guaranteed. Resetting and active environment display problems also can be solved with the reference energy following idea.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2005.05a
• /
• pp.169-172
• /
• 2005

공정시 플라스틱 기판의 변형을 방지하기 위해 PC(Polycarbonate) 기판을 약 12시간 동안 pre-annealing시킨 다음 SiN(silicon nitride)와 PI(Poly-imide)를 각각 Sputter와 Spin-Coater를 이용하여 Coating하였다. 완성된 PC 기판위에 Themal Evaporation으로 Calsium을 증착한 뒤 Al을 올렸다. Calsium 증착 된면에 삼성 코닝의 글래스를 UV resin으로 부착 시킨 다음 상온에서 투습률을 측정하였다. 측정 간격은 12시간으로 하였으며 Calsium Test 의 정확도 향상을 위해 CCD Camera로 측정하여 컴퓨터로 분석하였다. 그래픽 저장 파일은 저장시 이미지 손실을 방지하기 위해 Bitmap방식을 그대로 사용 하였으며 정확도 향상을 위한 분석 프로그램은 MicroSoft 사의 Visual C++로 작성하였다. 화상 처리 면적은 컴퓨터 시스템의 처리 속도를 감안하여 70*70 으로 하였다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.2
• /
• pp.901-908
• /
• 2011

For the available grid environmental realization, the resource supply PC must have to provide an appropriate security function of their operation environments. SKY@HOME is a kind of the grid computing environments. If this has not supervised by administrator handling smoothly, it is inherently vulnerable state to the security level of the grid environments, because the resource supply PC is not update a security function without delay. It is also have the troublesome problems which have to install of an additional security program for support the appropriate security. This paper proposes an integration security model on the policy-based that provides an update each level according to the situation of the resource supply PC for improving its problems as a security aspect of the SKY@HOME. This model analyzes the security state of the resource supply PC respectively, and then the result is available to provide an appropriate security of the resource supply PC using an integration security model. The proposed model is not need additionally to buy and install the software, because it is provided the security management server oriented service. It is also able to set up the suit security function of a characteristic of the each resource supply PC. As a result, this paper clearly show the participation of resource supply PC improved about 20%.

• Journal of Bio-Environment Control
• /
• v.32 no.3
• /
• pp.242-248
• /
• 2023

This study was conducted to evaluate the effects of trinexapac-ethyl (TE) and prohexadione-calcium (PC) on the growth and turf quality of perennial ryegrass (Lolium perenne L.). Treatments were designed as follows; control (non-treatment), TE (TE 0.01 a.i. g·m^-2·100mL^-1), and PC (PC 0.01 a.i. g·m^-2·100mL^-1). Compared with control, turf color index and chlorophyll content of TE and PC treatments were not significantly different. As applied plant growth regulators (PGRs), shoot length in the TE and PC was decreased by 8.9-12.4% and 6.7-13.6%, respectively, and clipping yield by 44.4-45.8% and 40.6-40.9%. When evaluated with the growth of shoot length after applying PGRs, residual days of TE and PC were 43.6 and 37.9 days after treatment of PGRs (DAT) in the 1st experiment (July 29-August 26), respectively, and 38.3 and 39.5 DATs in the 2nd experiment (September 30-October 28). These results indicated that an application of TE or PC decreased shoot length and clipping yield in the perennial ryegrass, and their residual time was about 40±3 DATs. Perennial ryegrass applied with PGRs like TE and PC was not significant seasonal difference, and might be not phytotoxic.

• Journal of the Korea institute for structural maintenance and inspection
• /
• v.12 no.6
• /
• pp.71-80
• /
• 2008

A slab examined by this study is the half precast concrete(PC) slab with the truss-reinforcement. There are many studies on the composite slab, but the study on the half precast concrete(PC) slab is little. Especially, the study on a structural performance of the half PC slab according to the height of the truss-reinforcement is extremely little. Therefore, in this research, three kinds of slabs with different height of the truss-reinforcement were made, and the bending test was conducted to research a structural performance.

• Information and Communications Magazine
• /
• v.12 no.8
• /
• pp.80-89
• /
• 1995

• Venture DIGEST
• /
• no.12 s.125
• /
• pp.20-21
• /
• 2008

• Information and Communications Magazine
• /
• v.12 no.6
• /
• pp.447-447
• /
• 1995