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399 results on '"Smirnov, Michael A."'

33. Rule-Based Systems Security Model

Author

Smirnov, Michael, Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, Gorodetsky, Vladimir, editor, Popyack, Leonard, editor, and Skormin, Victor, editor

Published
2003
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41. Strengthening Cellulose Nanopaper via Deep Eutectic Solvent and Ultrasound-Induced Surface Disordering of Nanofibers

Author

Batishcheva, Elizaveta V., primary, Sokolova, Darya N., additional, Fedotova, Veronika S., additional, Sokolova, Maria P., additional, Nikolaeva, Alexandra L., additional, Vakulyuk, Alexey Y., additional, Shakhbazova, Christina Y., additional, Ribeiro, Mauro Carlos Costa, additional, Karttunen, Mikko, additional, and Smirnov, Michael A., additional

Published
2021
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42. Development Of A Mathematical Model To Determine The Accuracy Of The Algorithm Of Shape From Polarization

Author

Gulvanskii, Viacheslav, Smirnova, Elena, Vikulov, Evgenii, Smirnov, Michael, and Mamaeva, Maria

Subjects
polarization, lcsh:TK5101-6720, New version, shape from polarization, 3-d reconstruction, lcsh:Telecommunication
Abstract

There are a large number of devices on market of 3D scanners that are able to get form of 3D surfaces of objects on different physical principles: laser lidars, systems with optical cameras, time-of-flight sensors and etc. At the moment, SONY company released sensors with polarizing spraying on the matrix, what in the aggregate with algorithm SFP – shape from polarization – can give information about the shape of the surface of the object, herewith without using active radiation sources. For creation of algorithms, creation of prototypes it is required to make modeling. Therefore, this article describes the process of creating a mathematical apparatus for processing polarized light data, based on the theory of micro-surface reflection of light. This mathematical apparatus will let to simulate the polarization of light depending on the location of the camera, the light and the inclination of the surface. A simulation and comparison with the results were made in the article.

Published
2019

47. Rapid EEG desynchronization and EMG activation induced by intravenous cocaine in freely moving rats: a peripheral, nondopamine neural triggering

Author

Kiyatkin, Eugene A. and Smirnov, Michael S.

Subjects
Electroencephalography -- Analysis, Cocaine -- Health aspects, Neural receptors -- Analysis, Biological sciences
Abstract

Many important physiological, behavioral, and psychoemotional effects of intravenous (IV) cocaine (COC) are too fast and transient compared with pharmacokinetic predictions, suggesting a possible involvement of peripheral neural mechanisms in their triggering. In the present study, we examined changes in cortical electroencephalogram (EEG) and neck electromyogram (EMG) induced in freely moving rats by IV COC administration at low, reinforcing doses (0.25-1.0 mg/kg) and compared them with those induced by an auditory stimulus and IV COC methiodide, which cannot cross the blood-brain barrier. We found that COC induces rapid, strong, and prolonged EEG desynchronization, associated with decrease in alpha and increase in beta and gamma activities, and EMG activation and that both begin within 2-6 s following the start of a 10-s injection; immediate components of this effect were dose independent. The rapid COC-induced changes in EEG and EMG resembled those induced by an auditory stimulus; the latter effects had shorter onset latencies and durations and were fully blocked during urethane anesthesia. Although urethane anesthesia completely blocked COC-induced EMG activation and rapid components of EEG response, COC still induced EEG desynchronization that was much weaker, greatly delayed (~60 s), and associated with tonic decreases in delta and increases in alpha, beta, and gamma activities. Surprisingly, IV saline delivered during slow-wave sleep (but not quite wakefulness) also induced a transient EEG desynchronization but without changes in EMG activity; these effects were also fully blocked during anesthesia. Peripherally acting COC methiodide fully mimicked rapid EEG and EMG effects of regular COC, but the effects at an equimolar dose were less prolonged than those with regular COC. These data suggest that in awake animals IV COC, like somato-sensory stimuli, induces cortical activation and a subsequent motor response via its action on peripheral neural elements and involving rapid neural transmission. By providing a rapid neural si[G.sub.Na]l and triggering transient neural activation, such an action might play a crucial role in the sensory effects of COC, thus contributing to the learning and development of drug-taking behavior. electroencephalography; electromyography; arousal; sensory effects; ionic channels; reinforcement doi: 10.1152/ajpregu.00628.2009

Published
2010

48. Erratum to: Autonomic Communication

Author

Stavrakakis, Ioannis, Smirnov, Michael, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Dough, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Stavrakakis, Ioannis, editor, and Smirnov, Michael, editor

Published
2006
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