The method for numerical simulation of measuring the concentration of particles of two types in a liquid-based on Rayleigh scattering during their deposition is proposed. The mathematical model takes into account the forces of gravity, hydrostatic lifting force, forces of resistance to motion. Additionally, the contribution of the influence of Brownian liquid motion on the movement of suspended particles was taken into account. The magnitude of the scattering of the light flux as it passes through the volume of liquid with particles suspended in it is modeled. A numerical calculation was carried out according to the developed mathematical model.
The technology of fiber Bragg gratings is used as one of the most applicable technologies for construction of fiber optic sensors and telecommunication systems. Periodic irregular wave resistance located in the guiding waveguide can be regarded as analog of the fiber Bragg grating structure in the field of radio-frequency. Coaxial waveguide can be used as a guide system, so a special case of this structure is the Bragg grating on coaxial cable. Recently, the special structure of sensors were beginning to be used with heterogeneity as a discrete phase π-shift. Based on the properties analysis of the Bragg reflection characteristics of structures with a phase shift in the optical and microwave range shown advantage of using these devices in measuring systems.
The approach to selecting modes in complex systems variable multimode models based on expansion of occurring processes in generalized Fourier series on sequentially following time intervals is considered in that paper. It is showing that concerned approach gives opportunity to stabilize parameters and characteristics of radio-electronics and quantum devices with dynamic chaos by complex adaptive influences.
The complex multimode systems diagnostic approach with examples non-harmonic spectral analysis of
telecommunication systems shapers pseudo-random signals, and deformation properties of polymeric materials are
considered in that paper.
In this paper the problem of compensating of effects of deterioration of a spatial resolution SAR owing to atmospheric
propagation effects in P, VHF bands and errors of knowledge of geometry of relative driving SAR and reflecting surface
is considered. The algorithms of blind reconstruction of SAR images, based on contrast functions method, for cases both
parametrical, and nonparametric indeterminacy are offered.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.