A5081771083- Solid State Laser Technologies
- Photorefractive and Nonlinear Optics
- Laser Design and Applications
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Advanced Fiber Laser Technologies
- Neural Networks and Applications
- Geology and Paleoclimatology Research
- Climate change and permafrost
- Context-Aware Activity Recognition Systems
- Laser-Matter Interactions and Applications
- Marine and environmental studies
- Cardiovascular Function and Risk Factors
- Arctic and Antarctic ice dynamics
- Robotics and Automated Systems
- Advanced Data Processing Techniques
- Indoor and Outdoor Localization Technologies
- Laser Material Processing Techniques
- Nuclear reactor physics and engineering
- Viral Infections and Vectors
- Fuzzy Logic and Control Systems
- Engineering Technology and Methodologies
- Cerebrovascular and Carotid Artery Diseases
- Advanced Scientific Research Methods
- Energy Efficient Wireless Sensor Networks
Lomonosov Moscow State University
2014-2025
Moscow State University
2015-2025
Institute of Nuclear Physics
2025
Samara National Research University
2016-2024
Saint Petersburg State Electrotechnical University
2023
Novosibirsk State Technical University
2011-2022
Gamma Medica (United States)
2022
Plekhanov Russian University of Economics
2019-2021
University of Technology
2021
Research Institute of Problems of Storage Rosrezerva
2020
Ice complexes (ICs) formed during the Late Pleistocene regression (marine isotope stages 5–3) on drained Laptev Sea shelf and coastal lowlands. These sediments can be several dozen metres thick (up to 40–60 m). Over wide areas lower boundary of ICs is situated below current sea level. At about 13 ka BP thermokarst processes began destroy ICs, both Thermokarst lakes depressions (alasses) were 11–11.5 9.5–8.5 when shoreline position lay isobaths −60 −45 m. Lakes alasses became traps for via IC...
Activity recognition is a hot topic in context-aware computing. In activity recognition, machine learning techniques have been widely applied to learn the models from labeled samples. Since labeling samples requires human's efforts, most existing research focus on refining utilize costly as effectively possible. However, few of them consider using costless unlabeled boost performance. this work, we propose novel semi-supervised algorithm named En-Co-training make use Our extends co- training...
Objective. To evaluate the force and kinetic energy expenditure of myocardial contraction in patients with coronary artery disease (CAD) before after restoration circulation. Material methods. We examined 48 CAD (mean age 62.2±7.4 years) surgery 40 healthy subjects 42.0±3.4 years). In long-term postoperative period (3—6 years), 31 63.4±5.1 were examined. Before surgery, all underwent coronarography transthoracic echocardiography. Data entered into database analyzed offline using EchoPAC...
Background. Neurosurgery is a high-tech surgical specialty in which available quantitative anatomical research must be carried out using modern technologies and approaches. Objective. Analysis of data from literature the experience authors study intracranial neurosurgical approaches, taking into account changing trends technical progress. Material methods. The article analyzes domestic foreign studies approaches based on 50 sources, also presents results authors’ own research. Conclusion....
Location Awareness is key capability of Context-Aware Ubiquitous environments. Received Signal Strength (RSS) based localization increasingly popular choice especially for indoor scenarios after pervasive adoption IEEE 802.11 Wireless LAN. Fundamental requirement such systems to estimate location from RSS at a particular location. Multi-path propagation effects make fluctuate in unpredictable manner, introducing uncertainty estimation. Moreover, real life situations values are not available...
ABSTRACT Introduction : Amyotrophic lateral sclerosis (ALS) is a set of disorders associated with preferential degeneration both upper and lower motor neurons. Navigated transcranial magnetic stimulation (nTMS) tool used to perform noninvasive functional brain mapping. We aimed assess function neurons in ALS. Methods nTMS was performed on 30 patients ALS (mean age 54.4 ± 12.1 years) 24 healthy volunteers 32.7 13.3 years). Results The resting threshold (MT) significantly higher compared...
Computer vision technology for the automatic recognition and geometric characterization of carbon glass fibers in scanning electron microscopy images is proposed. The proposed pipeline, combining SAM model DeepLabV3+, provides generalizability accuracy foundational ability to quickly train on a small amount data via DeepLabV3+ model. pipeline was trained several times more rapidly with lower requirements computing resources than fine-tuning model, comparable inference time. On basis an...
Location Awareness is key capability of Context-Aware Ubiquitous environments. Received Signal Strength (RSS) based localization increasingly popular choice especially for in-building scenarios after pervasive adoption IEEE 802.11 Wireless LAN. Fundamental requirement such systems to estimate location from RSS at a particular location. Multipath propagation effects make fluctuate in unpredictable manner, introducing uncertainty estimation. Moreover, real life situations values are not...
The possibility of increasing the efficiency one-cascade 1.5-μm SRS lasing in a BaWO4 crystal placed into an external cavity and pumped by nanosecond Nd:YAG laser at wavelength 1.34 μm is studied. Conditions that prevent energy outflow to second Stokes component with 1.78 are found, which allowed us increase intracavity 1.53 up 60% slope quantum limit (∼80% pulse 20 mJ). use pumping trains provided 1.53-μm radiation 40 mJ three-pulse train.
Abstract Based on the analysis of seafloor topography together with historical, geological and palaeogeographical data obtained from published archived sources, position former Ice Complex (IC) islands has been reconstructed. Within Laptev Sea shelf in western part East Siberian shelf, most these have destroyed by coastal thermal erosion abrasion during last thousand years or so. The IC were remnants ice‐rich syncryogenic freshwater terrestrial deposits (so called IC), which covered arctic...
The SRS conversion of high-repetition-rate trains self-phase-conjugated giant pulses a Nd:YAG laser is studied in BaWO4 crystal. radiation with the average power up to 7.5 W and single-pulse energy train 30 mJ was obtained at efficiency 20% — 30%. optical thermal lens produced crystal pumped by 30-W 0.12 m-1, which an order magnitude lower than known Ba(NO3)2
It is proved that lasers with different loop cavities self-pumped phase-conjugate mirrors in low-gain active media can operate under injection of external laser radiation and be used for the development diode-pumped phase-locked multichannel neodymium systems operating both on fundamental transition wavelength λ = 1.06 μm 1.34 μm. The oscillation thresholds case an signal are determined a multiloop cavity configuration increased number elements cavity. shown occur even if single-pass gain...
The paper aims to give general performance on achievements and trends in techniques for training of spiking neural networks context its hardware implementation, i.e. neuromorphic technology.
The article considers the conforming identification of fundamental matrix in image matching problem.The method consists division initial overdetermined system into lesser dimensional subsystems.On these subsystems, a set solutions is obtained, from which subset most defined.Then, on this resulting solution deduced.Since subsystems are formed by all possible combinations rows system, demonstrates high accuracy and stability, although it computationally complex.A comparison with methods least...
This paper discusses an approach to estimating the parameters of cohesive zone model (CZM) by mode II extruding bushing along lug axis. method evaluation requires small samples, which is particularly relevant when investigating short fiber-reinforced polymers (SFRPs) with additively manufactured embedded elements. Adhesion investigated on example 30% carbon polyamide-6 molded Ti-6Al-4V (VT6) selective laser-melted (SLM) alloy in cases a roughness Ra = 2.66 μm (vibratory finishing), 8.79...
Parameters of high-speed ablation ultradeep channels by controlled pulse trains from a single-mode phase-conjugate dynamic cavity Nd:YAG laser emitting 20–200-ns, 70–250-mJ pulses at repetition rate in train 40–250 kHz are studied. The optimal parameters found, for which long-lived region hot rarefied gas was maintained the channel, suppressed shielding action surface plasma. control lasing process during optimises not only heating and plasma formation, but also removal processed material...
This paper describes the load capacity of short fiber-reinforced polymer lugs with Ti-6Al-4V selective laser-melted bushings original embedded element surface roughness and after sandblasting vibratory finishing. Lugs are an important part pin-joints. Adhesion between PA6 SLM produced titanium is not fully studied. The cohesive zone material Mode II model parameters were calibrated experimentally by extruding a cylindrical bushing along lug axis. values maximum equivalent tangential contact...
The architecture of the control system for mobile robots is proposed in this paper. This based on a hybrid approach using neural networks classification images and organization associative memory as well semantic natural language processing achievement goals.