A5087675226- Optimization and Variational Analysis
- Advanced Measurement and Metrology Techniques
- Scientific Measurement and Uncertainty Evaluation
- Optical measurement and interference techniques
- Sparse and Compressive Sensing Techniques
- Laser Design and Applications
- Numerical methods in inverse problems
- Advanced Optimization Algorithms Research
- Spectroscopy and Laser Applications
- Surface Roughness and Optical Measurements
- Planetary Science and Exploration
- Optimization and Search Problems
- Radio Wave Propagation Studies
- Indoor and Outdoor Localization Technologies
- Scientific Research and Discoveries
- Heat Transfer and Mathematical Modeling
- GNSS positioning and interference
- Contact Mechanics and Variational Inequalities
- Calibration and Measurement Techniques
- Advanced Bandit Algorithms Research
- Advanced Frequency and Time Standards
- Stochastic Gradient Optimization Techniques
- Advanced Fiber Laser Technologies
- Solid State Laser Technologies
- Advanced Thermodynamics and Statistical Mechanics
Moscow Institute of Physics and Technology
2018-2023
National Research University Higher School of Economics
2018-2021
St. Petersburg State Technological Institute
2020
State Scientific Center of Coloproctology
2017-2018
Maastricht University Medical Centre
2018
Hôpital de la Timone
2018
Koç University
2018
Massachusetts General Hospital
2018
Pontificia Universidad Católica de Chile
2018
Aarhus University Hospital
2018
A fringe-pattern analysing interferometer with a resolution of 1 × 10-9, stablility readings about 0.1 nm, and an uncertainty owing to optical effects less than has been used study some systematic in gauge block length measurements. Measurements on steel quartz plates sub-nanometre reproducibility are reported. An accuracy nm is demonstrated for combination reproducible wringing slave-block techniques. The limitations the present definition highlighted. double-sided method measurement blocks...
A primary-level comparator, with a reproducibility of 0.2 nm and intended for realization Systeme International length unit in the range 1-100 mm, is reported. High-precision differential measurements phase change on reflection from blocks end plates are demonstrated. set experiments has been developed to measure systematic error associated nonideal interferometer optics deviations flatness an auxiliary plate. For specially selected high-grade 6-mm blocks, reproducible wringing achieved...
A system of interferometric length measurements has been realized that supports wringing and phase change errors 1 nm. In this system, special reference blocks allowing reproducible are used to find the relation between optical mechanical lengths. The a block is found by double-sided method on quartz plate. combination slave-block techniques. comparison these two values gives at reflection, which then from measurement results arbitrary (up 100 nm). proposed makes it possible measure...
Results of the Stage One portion Inter-American System Metrology (SIM) regional international comparison gauge block calibration by optical interferometry are presented. In this measurement round-robin, short blocks, six made steel and tungsten carbide, in range nominal length from 2 mm to 100 mm, were calibrated five national metrology institutes (NMIs) SIM region, one NMI EUROMET. By employing technique interferometry, each laboratories establishes a direct link their primary standard...
Aim: The aim of study was to review the results overlapping sphincteroplasty in treatment anal incontinence after obstetric injury.Method: Patients with trauma iterated our unit were included study.Patients demographic data, anal, duration incontinence, number surgical operations recorded.Pre-and postoperative scores (Cleveland Clinic _ Incontinence Score -CC IS) and faecal quality life (FIQLI) evaluated.Results: There 42 patients study.The range patient age between 17 62 years old.Mean...
A detailed description of the He-Ne/127I2 laser wavelength standards developed at National Metrology Institute Turkey (UME), using high-frequency modulation and featuring a long-term relative instability few parts in 1014, is presented. The frequency dependence lasers on iodine gas pressure, width saturating field intensity have been studied with very low uncertainty level, common effect these parameters output has demonstrated. new method accurately measuring realized, making an important...
Introduction. The article deals with the problem of preparing future teachers for delivering historical education and formation memory in primary schoolchildren. purpose is to clarify methodological technological aspects school solve schoolchildren main focus on memory. Materials Methods. study follows value-semantic approach. research methods employed include survey, unfinished sentence method, statistical content analysis. Results. authors summarized existing theoretical this problem,...
An international comparison of the 127I2 stabilized lasers, used as wavelength standards and belonging to National Metrology Institute Turkey (UME) Bureau International des Poids et Mesures (BIPM), has been performed at BIPM. A frequency stability 45 Hz (a standard deviation for a series measurements over four days an averaging time about one hour), or 1 part in 1013, achieved. This indicates significant progress stabilization this type establishes new level comparisons 633 nm. The...
Large Koesters interferometer for long gauge block measurements is known as a unique instrument, which many decades being used the realization of SI length unit with extremely low uncertainty values. High-precision certification temperature measuring system original has been realized, when using two alternative systems, operating simultaneously. The level each reference well below 1 mK. Our systems are based on platinum resistance thermometers (PRTs), calibrated directly application...
The main characteristics of the saturated absorption resonance (its line shape, its amplitude, power and collisional broadening) are studied in detail, experimentally theoretically, covering both domain very small relatively large saturation levels. In contrast with numerous previous papers, it is shown that width free-flight regime governed only by typical transit time molecules across beam, while first derivative equal to square root product transit-time linewidths. effect slow on shape...