Spectral line broadening in dense plasmas is investigated for lithium He-like ion based on a microscopic quantum-statistical approach. By using thermodynamic Greens function, perturber-radiator interaction, plasma correlation and screening effects are taken into account. Ions are...
The Mansouri-Sexl theory is a well known test theory of relativity. Mansouri and Sexl dealt with the theory of the Michelson-Morley, Kennedy-Thorndike and Ives-Stilwell experiments but left out the very interesting Sagnac experiment. In the following paper we will present a novel...
The potential energy and the dipole moment curves have been investigated for the 23 lowest electronic states in the representation of the molecule LaS via CASSCF. Multireference CI calculations (single and double excitations with Davidson corrections) were performed by using Gau...
In this research, we study some properties of compactons using Finite Element Method (FEM). This method is complicated for programming and very time consuming; but it is an accurate method. Using this method, we studied soliton properties and obtained results were acceptable. The...
We present first principles calculations of the electronic properties of TlBr and TlCl binary semiconductor compounds. The dependences on hydrostatic pressure of these properties (band structure, density of states, electronic charge density) are successfully calculated using self...
This study was carried out to assess the fuel quality of biodiesel produced from tigernut (Cyperus esculentus) oil and its blends with petro- diesel. The oil was extracted from the tigernut by solvent extraction method using petroleum ether. The oil was trans-esterified using pot...
The investigation of the variability of the Sq(H) in the African sector was carried out using the geomagnetic field measurements of four stations located in the East, West, Central and South Africa. The study shows that the variations of the geomagnetic element were a dusk to daw...
We have simulated the Chalcogenide glass (ChG)-based nanostructures which are used as substrates for surface-enhanced Raman scattering (SERS). A discrete dipole approximation method was used and calculated results are compared to those of experimental. The results of simulation a...
The fluorescence and fluorescence excitation spectra of pure and doped polycarbonate (PC) depending on hindered-amine light stabilizers (HALS: Tinuvin 770 and Tinuvin 123) concentration and different processing conditions have been studied. Non-processed PC has no emission band i...
The motion of the charged particles in graphene in the frame of the quantum non-local hydrodynamic description is considered. It is shown as results of the mathematical modeling that the mentioned motion is realizing in the soliton forms. The dependence of the size and structure...