Laser-based spectroscopic techniques were developed for tumor tissue characterization utilizing different tumor-localizing substances. In particular, sensitization with the heme precursor delta-amino levulinic acid (ALA) administered topically, orally or intravenously was used for the induction of protoporphyrin IX (PpIX). The autofluorescence as well as the PpIX-related fluorescence signals we...

Different methods of spectroscopy with LMTs are described: the objective prism method (a), the parallel (b) and perpendicular (c) long slit methods, the holographic FTS method (d), and the scanning multislit method (e). Advantages and drawbacks of each method are pointed out and estimates of nightly performances are given. Equivalence in the photon-limited regime between all methods offering a ...

Abstract Detailed characteristics wear particles formed in various brake pads were done. Our study was focused on identification structure and chemical composition of powder released by abrasion. The experimental studies carried out using Mössbauer spectroscopy, X-ray diffraction, scanning electron microscopy magnetic measurements. Structure the original disc samples compared with results obtai...

Using measured radial velocity data of five double-lined spectroscopic binary systems EQ Tau, V376 And, V776 Cas, V2377 Oph and V380 Cygni, we find corresponding orbital and spectroscopic elements via the method introduced by Karami & Teimoorinia and Karami & Mohebi. Our numerical results are in good agreement with those obtained by others using more traditional methods.