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Your search keyword '"Sokolov, Vladimir"' showing total 44 results
Start Over Author "Sokolov, Vladimir" Publisher elsevier bv
44 results on '"Sokolov, Vladimir"'

8. Laser Measurements Based for Volumetric Accuracy Improvement of Multi-axis Systems

Author

Basalaev Konstantin and Sokolov Vladimir

Subjects
Optimal Software Correction, Laser Measurements, Basis (linear algebra), Computer science, Control (management), Control engineering, General Medicine, Workspace, Physics and Astronomy(all), Laser, law.invention, Compensation (engineering), Interferometry, Machining, law, Volumetric Accuracy, Error detection and correction
Abstract

The paper describes a new developed approach to CNC-controlled multi-axis systems geometric errors compensation based on optimal error correction strategy. Multi-axis CNC-controlled systems – machine-tools and CMM‘s are the basis of modern engineering industry. Similar design principles of both technological and measurement equipment allow usage of similar approaches to precision management. The approach based on geometric errors compensation are widely used at present time. The paper describes a system for compensation of geometric errors of multi-axis equipment based on the new approach. The hardware basis of the developed system is a multi-function laser interferometer. The principles of system‘s implementation, results of measurements and system's functioning simulation are described. The effectiveness of application of described principles to multi-axis equipment of different sizes and purposes for different machining directions and zones within workspace is presented. The concepts of optimal correction strategy is introduced and dynamic accuracy control is proposed.

Published
2014

18. Bi-Currency Versus Single-Currency Targeting: Lessons from the Russian Experience

Author

Sokolov, Vladimir

Subjects
exchange rate policy, basket targeting, sovereign CDS, decoupling, jel:F31, jel:F33
Abstract

This paper examines the impacts of the 2005 shift in Russian exchange rate policies from single-currency to bi-currency basket targeting on domestic interest rates and sovereign risk premium dynamics. The policy shift disconnected domestic interest rates from US dollar-denominated interest rates, replacing them with a growing positive relationship with the dual-currency basket (USD-EUR) adopted by the Central Bank of Russia, as well as a synthetic interest rate composed of the US dollar LIBOR and the euro LIBOR. The paper also considers the insulating properties of Russian basket targeting policies during the recent global liquidity crisis. I present evidence that the Russian MosIBOR rate was negatively related to the US dollar LIBOR rate and positively related to the synthetic USD-EUR rate during the "decoupling" stage of the crisis. Even with the steep quantitative easing of the US Fed during this period, the finding suggests the Russian money market was more in sync with the monetary policies of the euro area. The central conclusion here is that, in conditions of managed floating exchange rate policies and liberalized capital accounts, the relationship between a country's domestic interest rates and their foreign counterparts depends on the de facto operating target of the central bank of this country, whether it is a single currency or a basket.

Published
2010

27. CD4+CD25highCD127low regulatory T cells in patients with stable angina and their dynamics after intracoronary sirolimus-eluting stent implantation

Author

Potekhina, Alexandra V., primary, Provatorov, Sergey I., additional, Sokolov, Vladimir O., additional, Pylaeva, Ekaterina A., additional, Masenko, Valery P., additional, Noeva, Elena A., additional, Kukhtina, Nadezhda B., additional, Krasnikova, Tatiana L., additional, and Arefieva, Tatiana I., additional

Published
2011
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44. 4556847 Method of quantitative analysis of substances and nuclear-resonant quantitative analyzer therefor

Author

Boris Y. Vitjuk, Sokolov Vladimir A, Boris V. Danshin, Evgeny K. Aspiotis, Evgeny I. Malakhov, Volkov Leonid, and Anatoly S. Sidorov

Subjects
Physics, Spectrum analyzer, Acoustics, Amplifier, Biomedical Engineering, Biophysics, Control unit, Analytical chemistry, Value (computer science), equipment and supplies, Signal, Sample (graphics), Standard deviation, Generator (circuit theory), Radiology, Nuclear Medicine and imaging, human activities
Abstract

A method of quantitative analysis of substances based on nuclear magnetic resonance comprises the steps of weighing a sample of substance to be analyzed, obtaining therefrom and accumulating nuclear magnetic resonance signals during n measuring cycles, computing a mean value of the nuclear magnetic resonance signals, and determining percentage of components in the sample being analyzed with regard to its mass and the mean value of the nuclear magnetic resonance signals. The mean value of the accumulated signals and its standard deviation are computed as the accumulation occurs during each of the n measuring cycles, the subsequent step being subtraction of the standard deviation from the permissible limiting standard deviation value whereupon the accumulation is stopped during the n i th cycle in which a difference between said magnitudes is a positive value. A nuclear-resonant quantitative analyzer for accomplishing the aforesaid method comprises a magnetic system, a nuclear magnetic resonance signal pick-up arranged in its gap, an amplifier, a selector and an analog-to-digital converter, which are connected to the output of said pick-up, a video-pulse generator connected to the input thereof, and a radio-pulse generator. The analyzer also comprises an automatic sample weighing unit composed of such series-connected components as a weight-to-frequency converter, a load-receiving platform thereof being inserted in the nuclear magnetic resonance pick-up, and a frequency-to-code converter, a data swapping unit, a processor, a control unit, a programming unit and a data output unit.

Published
1986

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