R. F. O’Connell Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001 (Dated: October 11, 2006) Abstract Efforts to achieve quantum computation, teleportation and communication depend on minimizing decoherence, which is the destruction of a quantum interference pattern. Here, we examine effects arising from the universal zero-point (temperature T = 0) oscil...

Contrary to the popular views, air travel has been the safest compared to other surface transportation (automobile & railroad) in terms of casualty of passengers. This is mainly due to the vigilant pursuit of safety margin in the design of Air Traffic Control and Navigation (ATCN) system. However, the rising demand of air travels requires us to review the safety factor affecting all phases of a...

Many computer-assisted surgery applications use electromagnetic tracking devices and several sources of interference may reduce the accuracy of this type of system in clinical situations. This study aims to quantify interference sources in an operating room (OR) and determine if their impact on the tracking system is excessive for applications requiring millimetric accuracy. Electromagnetic noi...

Deployment of wireless systems in nuclear power plants has attracted a lot of attention recently. However, before wireless systems can be installed in a nuclear power plant, it is necessary to evaluate the effect of radiation environment on electromagnetic wave which is the communication media for all radio wave based wireless systems. This is particular important if the wireless systems are ex...

background: health-related quality of life is affected by electromagnetic field exposure in each person everyday life. however, this is extremely controversial issue. objective: investigation of the associations between electromagnetic field exposure and miscarriage among women of tehran. materials and methods: in this longitudinal study, 462 pregnant women with gestational age <12 wks from sev...

Time-domain as well as frequency domain adaptive filter algorithms have been investigated and compared in respect of their capabilities of suppressing ambient noise during time-domain measurements of electromagnetic interference at open test sites. The fundamentals and the application of the most advantageous algorithm for timedomain EMI measurements is described in this paper. An advanced digi...

Electromagnetic interference can be easily coupled into metallic shielding enclosure that is penetrated with a conducting wire, which having a harmful effect on electrical and electronic devices. To sudy the characteristics, Finite Difference Time Domain (FDTD) is applied in both frequency and time domain for modeling the coupling of an incident electromagnetic pulse (EMP) with a conducting wir...

Abstract When the vehicle-mounted electromagnetic gun is launched, vehicle body subjected to strong arc reaction, magnetic field interference and shock wave phenomenon. By establishing external model of multi-tube launch chamber, protection characteristics launcher’s full-life counting device are studied, during analyzed by COMSOL software, distribution position selected. Then, based on shieldi...

A full-wave electromagnetic model for analyzing waveguide discontinuities of arbitrarily shaped piecewise planar boundaries is presented. The analysis is facilitated by using the finite plane-wave series expansion of circular cylindrical modal functions. Since electromagnetic fields on each of the planar boundary surfaces of the inhomogeneous region are expressed in terms of plane-wave modal fu...

The radiation characteristic of plasma antenna is investigated by using the finite-difference time-domain (FDTD) approach in this paper. Through using FDTD method, we study the propagation of electromagnetic wave in free space in stretched coordinate. And the iterative equations of Maxwell equation are derived. In order to validate the correctness of this method, we simulate the process of elec...