A Lithium Experiment in the Program of Solar Neutrino Research

The experiments sensitive to pp-neutrinos from the Sun are very perspective for the precise measurement of a mixing angle $\theta_{12}$. A $\nu$e$^{-}$ scattering experiment (Xmass) and/or a charged-current experiment (the indium detector) can measure the flux of electron pp-neutrinos. One can find the total flux of pp-neutrinos from a luminosity constraint after the contribution of $^7$Be and CNO neutrinos to the total luminosity of the Sun are measured. The radiochemical experiment utilizing a lithium target has the high sensitivity to the CNO neutrinos, thus, it has a good promise for the precise measurement of a mixing angle and for the test of a current theory of the evolution of the stars.Comment: 6 pages, 2 figures, 1 table, A report made by A.Kopylov at International Conference NANP-2005, June 2005, Dubna, Russi

Dynamic image potential at an Al(111) surface

We evaluate the electronic self-energy Sigma(E) at an Al(111) surface using the GW space-time method. This self-energy automatically includes the image potential V-im not present in any local-density approximation for exchange and correlation. We solve the energy-dependent quasiparticle equations and calculate the effective local potential experienced by electrons in the near-surface region. The relative contribution of exchange proves to be very different for states above the Fermi level. The image-plane position for interacting electrons is closer to the surface than for the purely electrostatic effects felt by test charges, and, like its classical counterpart, is drawn inwards by the effects of atomic structure

Stand for cyclic tests of rack and pinion steering mechanism

At the present moment the motor vehicle designers pay particular attention to the vehicle active safety aspects. Steering control plays a significant role here, since its slightest malfunction may result in very unpleasant consequences. Therefore, specific attention is paid to the improvement of the steering control quality and reliability. This article presents the design of a stand for testing steering mechanisms of various dimensions through application of torque at numeral angles; the torque application aims to improve the vehicle active safety

Stand for cyclic tests of rack and pinion steering mechanism

At the present moment the motor vehicle designers pay particular attention to the vehicle active safety aspects. Steering control plays a significant role here, since its slightest malfunction may result in very unpleasant consequences. Therefore, specific attention is paid to the improvement of the steering control quality and reliability. This article presents the design of a stand for testing steering mechanisms of various dimensions through application of torque at numeral angles; the torque application aims to improve the vehicle active safety

Properties of diffraction optical elements on the base of discotic liquid crystal for display applications

Diffraction optical elements (DOE) are important elements of systems for images displaying and processing. The DOE materials with both positive and negative birefringence enhance performances and functionality of such systems. We have calculated diffraction of rays passing through (OAGSM) by using our original Exedeep software. At the first time the diffraction parameters for both transmitted and reflected TE-and TM-waves are calculated for materials with both positive and negative optical anisotropy. The simulation results are to be used to create DOE for visible, IR and THz range. © 2020 SID

Diffraction on periodic surface microrelief grating with positive or negative optical anisotropy

Diffraction optical elements (DOE) are important elements of systems for images displaying and processing. The DOE materials with both positive and negative birefringence enhance performances and functionality of such systems. We have calculated the diffraction of rays passing through optically anisotropic grating with surface microrelief by using our original Exedeep software. At the first time the diffraction parameters for both transmitted and reflected TE- and TM-waves are calculated for materials with both positive and negative optical anisotropy. The simulation results are to be used to create DOE for the visible, UV, IR and THz ranges. © 2020 Optical Society of Americ

Automated system for measuring the parameters of the interaction with the surface of the liquid crystal alignment layer of a liquid crystal cell

A model of an automated system of pretilt angle measurement and azimuthal anchoring energy in LC cells is developed. The automated system with ability to external control of measurement parameters. A software for the system control, data collection, transformation and analysis of measurement data is developed to comparison of the experimental and theoretical results