The confined variational method is used to study $S$-, $P$-, and $D$-wave positronium-hydrogen scattering with the energy between 0.068 3.333 eV. Accurate phase shifts $S$-wave lengths are calculated compared other theoretical methods. Existing discrepancies for resolved. According collision momentum, total orbital angular spin configuration, distortion effects of positronium quantitatively stu...

Continuous wave gravitational radiation from isolated rotating neutron stars is discussed. The general waveform and orders of magnitude for the amplitude are presented for various known pulsars. The specific case of gravitational radiation resulting from the distortion induced by the stellar magnetic field is presented. Finally some preliminary results about the signal from the whole population...

Abstract In order to achieve optimum service availability, Ka-band gateways must deliver very large effective isotropic radiated power (EIRP) per signal. For most signal types, and for all multicarrier uplinks, uplink power is limited by distortion in the final amplifier. Such distortion may be defined by a number of metrics, including adjacent-channel power ratio (ACPR), noise power ratio (NPR...

ethan kohlberg, the jewish orientalist and specialist on shi‘a, sees the distortion in holy scriptures, including quran, inevitable. from his point of view, some quranic verses confirm this point. his second proof is the history of the quran and the time when its whole text was written down. in his viewpoint,   hadiths which prove that the quran had been written down in abu bakr’s time ore orie...

We analyze the effect of dispersion of radio waves in the Earth’s ionosphere on the performance (image resolution) of spaceborne synthetic aperture radars (SARs). We describe the electromagnetic propagation in the framework of a scalar model for the transverse field subject to weak anomalous dispersion due to the cold plasma. Random contributions to the refraction index are accounted for by the...

We model the impact of atmospheric turbulence-induced phase and amplitude fluctuations on free-space optical links using synchronous detection. We derive exact expressions for the probability density function of the signal-to-noise ratio in the presence of turbulence. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator sh...