The presented study compares three alternative straight-line approximations of the longitudinal road-profile power spectral density (PSD). The one straight line and two and three split straight-line approximations were analyzed. The minimizing of the root-meansquared error (RMSE) was used as criteria of goodness of fit for the approximation models. The statistics of the PSD approximation model ...

cisplatin is a common chemotherapeutic agent that used for treatment of many solid cancers. rapid identification of chemotherapy resistance is very important and may lead to effective treatment plan. spectroscopy techniques, such as infrared spectroscopy, which are sensitive to biochemical composition of samples, have shown potentials to discriminate tissues. developing in fourier transform inf...

2014 ACO synchrotron radiation has been used to obtain photoelectron spectra of the outer shell of xenon in the 75-100 electron volts energy range. Satellite peaks corresponding to the formation of excited ionic states have been observed, in addition to the main peaks corresponding to the production of the 5s2 5p5 2P and 5s 5p6 2S states of Xe+. A comparison is presented of the intensities of t...

1. ABSTRACT: Data transmission through power lines has received increasing attention in recent years. In fact the electrical energy distribution system is a big back bone that can be use for data communication. The interest for this medium includes automatic reading of energy meter, management of electrical distribution system, automation of buildings, and high speed data rate connection within...

Using the coudé spectrograph of the NAO 2m telescope at the RhodopeMountains, Bulgaria, 9 spectra in the blue and 8 spectra in the red photographic region of P Cygni were obtained during 1990. By averaging the spectra in each set a S/N-ratio of about 45was achieved. Comparing the lists of identifications published by Beals (1950), de Groot (1969), Ozemre (1978), Stahl et al. (1993), Markova (19...

1 Water lines in Tempel 1 The team from UCL, monitored the Deep Impact event using the CGS4 spectrometer on the United Kingdom Infrared Telescope, UKIRT. Our principal objective was to determine the temporal development of solar pumped fluorescent (SPF) transitions of H 2 O following impact, and to interpret the results using the recently published ab inito water line list, BT2 (Barber et al., ...

We discuss a new technique for studying astrophysical turbulence that utilizes the statistics of Doppler-broadened spectral lines. The technique relates the power Velocity Coordinate Spectrum (VCS), i.e. the spectrum of fluctuations measured along the velocity axis in Position-Position-Velocity (PPV) data cubes available from observations, to the underlying power spectra of the velocity/density...

The high-resolution X-ray spectrum of NGC 3783 shows several dozen absorption lines and a few emission lines from the H-like and He-like ions of O, Ne, Mg, Si, and S as well as from Fe XVII–Fe XXIII L-shell transitions. We have reanalyzed the Chandra HETGS spectrum using better flux and wavelength calibrations along with more robust methods. Combining several lines from each element, we clearly...

Powerful astronomical spectra reveal an urgent need for additional work on atomic lines, levels, and oscillator strengths. The star HD 65949 provides some excellent examples of species rarely identified in stellar spectra. For example, the Re ii spectrum is well developed, with 17 lines between 3731 and 4904 Å, attributed wholly or partially to Re ii. Classifications and oscillator strengths ar...