The paper describes new concept o antenna for RFID technology. Antenna is locate lines to monitor tags situated on trains. Antenna w and it is fabricated by microstrip technology. Ant same mirrored parts having the same radiation p consists of three dielectric layers. The first laye radiation elements. The second layer is only construction and it sets optimal electromagnet radiating elements. T...

We report on the initial characterization of an elliptically polarized wiggler built by a collaboration between the Advanced Photon Source, the Institute of Nuclear Physics, and the National Synchrotron Light Source. The wiggler has recently been installed in the X13 straight section of the NSLS X-Ray ring. The device consists of a vertical permanent-magnet wiggler and a horizontal electromagne...

This article presents the results of a study on dynamics volume magnetic fluid levitating in uniform field an electromagnet experiencing oscillatory shift. Samples with different physical parameters were considered, and dependence magnetoviscous effect was studied. It showed that greatest influence experiences vibrational-shear magnetic-viscosity effects is exerted by sample microstructure pres...

In order to decrease the transmission of vibration and achieve attenuation magnitude an isolated object, a new type permanent electromagnet composite isolation system is designed based on negative stiffness theory. Firstly, according characteristic analysis, design hybrid actuator accomplished; secondly, model established, active control strategy fuzzy PID algorithm designed. Finally, test plat...