We report on a laser photo-ionization study of silver in relation to the Selective Production Exotic Species (SPES) project at INFN-LNL off-line laboratory. In this study, two dye lasers and an ablation operating 10 Hz are used alongside time-of-flight mass spectrometer (TOF-MS). Isotopic separation natural, stable isotopes 107Ag 109Ag was clearly observed TOF signal. Resonant achieved with use...

The X-ray spectrum obtained by Tanaka et al from a long observation of the active galaxy MCG63015 shows a broad iron K line skewed to low energies. The simplest interpretation of the shape of the line is that it is due to doppler and gravitational redshifts from the inner parts of a disk about a massive black hole. Similarly broad lines are evident in shorter observations of several other activ...

We present Doppler imaging and a Balmer line analysis of the weak-line T Tauri star TWA 17. Spectra were taken in 2006 with the UCL Echelle Spectrograph on the Anglo-Australian Telescope. Using least-squares deconvolution to improve the effective signal-to-noise ratio we produced a Doppler map of the surface spot distribution. This shows similar features to maps of other rapidly rotating T Taur...

The aim of this research was to determine the effects of abdominal aortic aneurysm (AAA) on blood flow patterns in the common femoral artery (CFA) and to determine the feasibility of detecting AAA by analysis of the CFA Doppler waveform. CFA Doppler waveforms were measured from 30 patients with AAA and 30 normal patients without significant atherosclerotic disease. On visual inspection of the C...

Single rovibronic level excitation has been demonstrated for a molecule representing the statisticallimit of a nonradiative electronic relaxation process. Resolution of the complex 14Ö two-photon band of benzene was possible after elimination of the Doppler broadening in a Doppler-free two-photon absorption process with narrow bandwidth pulsed laser light and allowed for selective excitation of...

A classical Fourier amplitude theory of combined Doppler and pressure broadening in the impact approximation is developed which treats phase changes due to translation and collision on an equal basis. Radiator motion is accounted for properly by includingspeed dependence in the collision frequency and velocity dependence in the distribution function for phase shifts and final velocities as the ...

In this paper, we explored how to more accurately predict the quality of high-frequency links and better research improve capabilities communication, reconnaissance, positioning systems. Based on background electron density generated by ionospheric assimilation model 3D ray-tracing technology, realistic accurate channel parameters with physical meanings were obtained. On basis, a complete that ...