A5061500928- Modeling and Simulation Systems
- Underwater Acoustics Research
- Simulation Techniques and Applications
- Ultrasonics and Acoustic Wave Propagation
- Ultrasound and Cavitation Phenomena
- Electromagnetic Scattering and Analysis
- Energy Efficient Wireless Sensor Networks
- Particle Dynamics in Fluid Flows
- Distributed and Parallel Computing Systems
- Advanced Data Processing Techniques
- Underwater Vehicles and Communication Systems
- Mechanics and Biomechanics Studies
- Differential Equations and Numerical Methods
- Water Quality Monitoring Technologies
- Scientific Computing and Data Management
- Numerical methods for differential equations
- Experimental and Theoretical Physics Studies
- Microwave Imaging and Scattering Analysis
- Online and Blended Learning
- Advanced X-ray Imaging Techniques
- Fractional Differential Equations Solutions
- Flow Measurement and Analysis
- Numerical methods in inverse problems
- Algebraic and Geometric Analysis
- Advanced Mathematical Modeling in Engineering
State Marine Technical University of St. Petersburg
2020-2024
Lomonosov Moscow State University
2018
We applied femtosecond laser polymerisation technique to fabricate a novel Bloch surface wave integrated photonic device with compact coupling scheme. The consisted of waveguide, and decoupling gratings focusing defocusing triangles. manufactured an array devices varying geometrical parameters waveguide. Excitation propagation waveguide modes were studied by direct back focal plane imaging. obtained results prove that the maskless flexible may be for fabrication Bloch-surface-wave based photonics.
A numerically efficient technique is presented for computing the backscattered fields from two spherical targets embedded in an underwater sediment. The bottom assumed to be a homogeneous liquid attenuating half-space. transmitter/receiver located water distances between and objects of interest are supposed large compared acoustic wavelengths seabed. In simulations, scatterers same radius acoustically rigid. interactions spheres not taken into account because strong attenuation bottom....
The paper presents a comparative analysis of the main functional characteristics underwater wireless sensor networks (UWSNs) with stationary and hybrid communication architectures. UWSNs consist nodes located on seabed intermodal gateways facilitating transmission information packets between above-water segments network. In UWSNs, anchored buoys serve as gateways, while in mobile transport platforms fulfill this role. Using mathematical framework based probabilistic approach, an evaluation...
The paper investigates the impact of seabed on echo signal from spherical scatterers. is modeled as a liquid absorbing half-space. transmitter/receiver located in water distance between and scatterer assumed to be large compared wavelengths acoustic waves seafloor. Numerical results are obtained for acoustically rigid scatterers same radius. Interaction not taken into account. single sphere over wide frequency range computed using method proposed by R.H. Hackman G.S. Sammelmann, with crucial...
Aim . To develop predictive models for differential diagnostics of hypertrophic phenotype in patients with concomitant diseases, as well to validate through independent assessment. Material and methods The study included an analysis 1169 medical records from the information system severe myocardial hypertrophy a preliminary diagnosis cardiomyopathy (HCM) (I42.1, I42.2). were divided into 3 following groups: probable HCM, moderate (>15 mm) due known disease, that cannot be explained by...
X-ray microscopy is advantageous over conventional optical because of its high resolution and capability to study the inner structure materials opaque visible light. Furthermore, this method does not require metallization vacuum therefore it can be used visualize fragile biological samples that cannot studied by scanning electron microscopy. Focusing optics may roughly divided into three groups based on physical principle focusing: reflection, diffraction refraction. The reflection includes...
The scattering of a plane sound wave by spherical interface between two liquid or gaseous media is simulated. influence heat conductivity and viscosity taken into account; the results G. Kirchhoff’s classical work on propagation in viscous heat-conducting medium are used. A surface can have any dimension. compared with field scattered solid sphere, which an ideal conductor.