Abstrac t Impedance measurements based on voltage pulse injection and current detection are faster and easier to implement than measurements based on sine waves, but transients produced in the current-to-voltage conversion may lead to large deviations in the measurement result. Because those transients depend on the same impedance being measured, solutions based on specific circuit values fail ...

A new parameter optimization of the LCLS photo-injector beamline minimizing the transverse emittance has been established for operating the gun at 120MV/m. The design goals of the LCLS photo-injector beamline are to provide a 150 MeV, 10ps FWHM, 1nC bunch at 120Hz with less than 1.2 mm.mrad for the projected emittance and less than 1 mm.mrad for the slice emittance for 80 slices out of 100. The...

‎In wireless communication systems‎, ‎space-time codes are applied to encode data when multiple antennas are used in the receiver and transmitter‎. ‎The concept of diversity is very crucial in designing space-time codes‎. ‎In this paper‎, ‎using the equivalent definition of full diversity space-time codes‎, ‎we first characterize all real and complex $2times 2$ rate one linear dispersion space-...

In the strive for optimal indicators of kidney damage, nephrologists may at times feel entangled in a molecular jungle. Contrary to cardiologists that succeeded in establishing highly sensitive biomarker molecules for hypoxic cellular damage, nephrologists await well-performing ‘damage’ indicators. Reasons for this are ample and mostly relate to the complex composition of the functional units a...