期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Eavesdropping the display image from conducted emission on network cable of a PC
1
作者 DU Yu-lei LU Ying-hua ZHANG Jin-ling 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2013年第3期78-84,共7页
The display image of a PC can be reconstructed by using the conducted emission on the PC's network cable. The relevant signals which be used to reconstruct the original image are coupling from the radiation of the sw... The display image of a PC can be reconstructed by using the conducted emission on the PC's network cable. The relevant signals which be used to reconstruct the original image are coupling from the radiation of the switching of red, green, blue (RGB) signals in PC. These pertinent signals are partly contained in the frequency region higher than 30 MHz in the conducted emission. From these findings, the near-field coupling principle from PC to the network cable is analyzed firstly. And then, a multi-conductor transmission model for the RGB signals which transmit in the network cable is proposed. In addition, the maximum safe distance is estimated by using this model. In order to check the validity of the estimating distance, the eavesdropping experiment is carried out to reconstruct the original display image. The results demonstrate that the blurred display image can be retrieved at the place of 29.5 m. 展开更多
关键词 electromagnetic secure conducted emission unshielded twisted pair cables EAVESDROPPING multi-conductor transmission model
原文传递
A Theoretical Model for Characterizing the Internal Contact of the CICC Strands under Axial Strain
2
作者 Shuai Dong Ze Jing +1 位作者 Huadong Yong Youhe Zhou 《Acta Mechanica Solida Sinica》 SCIE EI CSCD 2016年第5期455-467,共13页
A theoretical model is proposed to calculate the internal contact distributions and contact forces of a 3×4×4×4 twisted NbSn cable under applied axial strain.The critical current density reduction of th... A theoretical model is proposed to calculate the internal contact distributions and contact forces of a 3×4×4×4 twisted NbSn cable under applied axial strain.The critical current density reduction of the whole cable can be calculated.The thin rod theory is employed to analyze the mechanical behavior of each strand.According to the regular helical structure,the contact distribution of each strand is obtained,and the contact force in the cable is analyzed.At last,a prediction about the critical current density of the twisted cable is made.The results show that decreasing the pitch length can reduce the contact forces between strands. 展开更多
关键词 modulus cable strand length resultant decreasing pitch helical twisted radius
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部