http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
FPGA 상에서 에너지 효율적인 DCT(Discrete Cosine Transform) 모듈 설계 및 구현
장주욱 ( Ju Wook Jang ),임창현 ( Chang Hyeon Lim ),( Ronald Scrofano ),( Viktor K. Prasanna ) 한국정보처리학회 2005 정보처리학회논문지 A Vol.12 No.4
The 2-D discrete cosine transform (DCT) is an integral part of video and image processing; it is used in both the JPEG and MPEG enciding standards. As streaming video is brought to mobile devices, it becomes important that it is possible to calculate the DCT in an energy-efficient manner. In this paper, we present a new algorithm the DCT with a linear array PEs. This design is optimized for energy efficiency. We analyze the energy, area, and latency tradeoffs available with this design and then compare its energy dissipation, area, and latency to those of Xilinx's optimized IP core.
임창현 한국산업안전학회 2000 한국안전학회지 Vol.15 No.4
본 연구는 노치가 있는 구조물의 피로수명 예측 평가에 대하여 연구하였다. DEN시험편에 대한 피로 균열 발생수명과 피로균열 성장수명은 SIF K해석에서 유도한 식과 Paris의 균열성장식을 사용하였다. 예측 평가 결과는 일정하중 진폭하에서의 실험적 균열성장거동과 잘 일치하는 결과를 보였다. Thus paper mainly deals with fatigue life estimation and prediction in notched structures. The fatigue crack initiation life and the fatigue crack growth behavior in the DEN specimens were predicted using S.I.F. K solution derived in this study and the Paris' crack growth equation. Predicted results showed good agreement with experimental crack growth behaviors under constant-load-amplitude.
崔鎔湜,石昌星,朴鐘柱,林昌鉉 成均館大學校 科學技術硏究所 1995 論文集 Vol.46 No.2
This paper mainly deals with fatigue life estimation and prediction in notched structures. The fatigue crack initiation life and the fatigue crack growth behavior in the DEN specimens were predicted using S.I.F. K solution derived in this study and the Paris' crack growth equation. Predicted results showed good agreement with experimental crack growth behaviors under constant-load-amplitude.
석창성,임창현,김정표 한국산업안전학회 2001 한국안전학회지 Vol.16 No.2
In the case of a crack propagation, a portion of the work of inelastic deformation near the crack tip is dissipated as heat. In order to understand the thermal effect on fracture toughness, tensile tests were carried out using thermocouples to monitor the variation of temperature. The experimental results show that the temperature of specimen was increased 5.4℃ at static load edition. And the thermal effect is investigated connected with the steady-state stress in the vicinity of a crack propagation in the elastic-plastic C-T specimen theoretically. And fracture toughness, the energy to make crack surfaces, presented correctively. The fracture toughness with considering heat at the blunting of the crack tip is lower about 16.9% than that of ignoring heat. So, it is resonable to apply the fracture toughness with considering thermal energy and it would be good explanation for constraint effect depending on the configuration in the presence of excessive plasticity.