http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김완호(Wan Ho Kim),박진하(Jhin Ha Park),양순용(Soon Yong Yang),최승복(Seung-Bok Choi) 한국소음진동공학회 2016 한국소음진동공학회 학술대회논문집 Vol.2016 No.4
This paper presents performance comparison results of magneto-rheological (MR) brake in the sense of wear characteristics. To create wear circumstance, the brake is operated in 100000 cycles by DC motor. To make wear test in same design parameters such as the radius of the housing, ferromagnetic disc and gap size, small sample of stainless are inserted in housing of MR brake. The performances of brake are compared between the initial stage (no wear) and 100000 revolution cycles operated stage (wear). At each circumstance, torque of the brake is measured and compared by applying step current and sinusoidal control input. The controller used in this work is a simple, but effective PID controller. It is demonstrated that the wear behavior is more obvious as the operating cycle is increased in the torque control process.
金鍾國,盧鈑愚,朴鎭夏,신영진,李春鎬 全北大學校 文理科大學 1974 論文集 Vol.1 No.-
Uses of the homopolymer and copolymer dyed with each of methyl yellow and methyl red respectively, for the X-ray dosimetry, have been studied. The relation between absorbances at 530mu for methyl yellow and 560mu for methyl red and radiation exposure dose of film was linear in the range of about from 1×10 exp (4)r to 1×10 exp (5)r for methyl yellow (to 2×10 exp (5)r for methyl red), and also the film showed a good reproducibility within 5% error under the standard experimental condition. In this experiment, we found that the absorbance was independent of the irradiation dose rate between 2×10 exp (3)r/min and 7.5×10 exp (3)r/min within the experimental error. It is concluded that the dyed polyvinyl chloride and copolymer films can be used for X-ray dosimetry within fairly good limits of dose and accuracy.