Wszystkie pola: sokolov, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Integrated Estimation of the Effect of Physical Factors on Human Functional State During Mental Work
Autorzy:: Suvorov, G. A.
Afanasieva, R. F.
Mikhailova, N. S.
Babayan, M. A.
Bobrov, A. F.
Sokolov, S. N.
Powiązania:: https://bibliotekanauki.pl/articles/90487.pdf
Data publikacji:: 2001
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: integral estimation
noise
vibration
temperature
illumination
mental work
psychophysiologic responses
fizjologia
praca umysłowa
hałas
drgania
temperatura ciała
oświetlenie
organizm człowieka
Opis:: The purpose of this study was to develop a model for an integrated estimation of the functional state of the human organism (FSHO) and an integral estimation of physical factors (PF) for hygienic rating. Tests were performed twice with 3 men in 0.7-clo clothing during 4-hr mental work with 9 combinations of 4 PF: wideband noise (55–83 dB(A)), whole-body vibration (6 Hz, az =0.2–1.8 ms−2), air temperature (18–30 C), and illumination (1, 3, 5 lx). Thermoregulatory, cardiovascular, and psychophysiological reactions and temporary threshold of hearing (TTS2) shifts were studied. For the integral estimation of PF influence on FSHO the model F(y1, y2, ... ym) = f(x1, x2, ... xn) was used, relating both FSHO and PF sets. The most important physiological parameters in creating FSHO are defined and the contribution of individual parameters of FSHO and PF is found.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2001, 7, 2; 149-161
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Calcium Fluoride Barrier Layer in Tunnel Emitter Phototransistor
Autorzy:: Illarionov, Y.
Vexler, M.
Suturin, S.
Fedorov, V.
Sokolov, N.
Powiązania:: https://bibliotekanauki.pl/articles/1490944.pdf
Data publikacji:: 2012-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.40.Qv
73.40.Gk
73.61.Ng
Opis:: Owing to the optimized growth technology of the 1-2 nm calcium fluoride films on n-(111)-silicon, metal/tunnel-insulator/semiconductor phototransistors have been fabricated by the molecular beam epitaxy at the temperature 250°C. The characteristics of these transistors were measured in a wide range of voltages, and the proofs for current gain were found throughout the investigated range. The gain value exceeds $10^3$ approaching the theoretically estimated value in this system. The stability and reproducibility of the device characteristics were satisfactory. The results support the candidacy of calcium fluoride for being a vital dielectric in silicon-based functional electronics.
Źródło:: Acta Physica Polonica A; 2012, 121, 1; 158-161
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The computational research of the dynamic load of the power train sites of the caterpillar tractor
Rasčetnye issledovaniâ dinamičeskoj nagryžennosti učastkov silovoj peredači guseničnogo traktora
Autorzy:: Shehovtsov, V.
Sokolov-Dobrev, N.
Shevtchuk, V. P.
Ljashenko, M. V.
Kalmikov, A.
Powiązania:: https://bibliotekanauki.pl/articles/263705.pdf
Data publikacji:: 2013
Wydawca:: Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:: dynamic load
power train
dynamic model
torsional vibration
caterpillar tractor
Opis:: The paper describes the developed dynamic model of the caterpiller’s power transmission. Its advantage is the integrated dimensional model of caterpillar propeller. Animated motion modeling provides the formation and transfer of kinematic and dynamic disturbances from caterpillar chassis, causing the greatest loadings of the power circuit sections. The principle of power transmission mathematical model’s differential equations forming is described. result of the model’s computational research is a set oscillograms of the drive wheel’s torque changing for different operating modes. The values of power transmission masses’ natural frequencies are obtained. The research of the nature of transmission sections’ dynamic loading by torsional vibrations, that arise and spread on the shafting, when the linked track rewinds, is carried out.
Źródło:: Archiwum Motoryzacji; 2013, 2; 79-91, 195-208
1234-754X
2084-476X
Pojawia się w:: Archiwum Motoryzacji
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Decreasing of dynamic loading of tractor’s powertrain by means of change of reactive element torsional stiffness
Autorzy:: Kalmikov, A. V.
Sokolov-Dobrev, N. S.
Shekhovtsov, V. V.
Ljashenko, M. V.
Potapov, P. V.
Powiązania:: https://bibliotekanauki.pl/articles/242814.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: dynamic load
power train
dynamic model
torsional vibration
caterpillar tractor
Opis:: This article describes original method proposed by authors that provides decreasing of dynamic loading of tractor’s powertrain by means of change of reactive element torsional stiffness. In tracked vehicles one of the most loaded elements is final drive unit which loaded by high dynamic modes. In tractor Chetra 6C-315, final drive is epicyclic where stopped element is ring gear. Authors propose using of strictly resilient (5 degrees in forward-backward direction) mount of ring gear instead of stiffening. Design study of installation between hub and gear ring that connects drum and crown gear, of the resilient metal plates pack was performed. This pack is kind of elastic coupling. Resilient packets of coupling sustain loads and smooth over peak dynamic loads and after elastic deformation of these packets rigid coupling between hub and coupling crown is provided at contact surfaces of skewed stops of hub and crown. To analyse efficiency of proposed method of dynamic loadings decreasing of powertrain elements three-dimensional model of powertrain was created in “Universal Mechanism”. In addition, solid model of caterpillar mover was created in the same software for analysis of influence on powertrain loadings of complex of kinematic and dynamic factors influencing forming of torque on driving sprockets. This article presents results of modelling of loading processes in powertrains elements with elastic coupling and without it during longitudinal motion at various speeds and in turns with various radii. Results show that elements dynamic loading at high loading dynamic modes in case of installed coupling is decreased by 20-30%.
Źródło:: Journal of KONES; 2015, 22, 1; 127-134
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Decreasing of vibration load level on tractor operator’s working place by means of using of vibrations dynamic dumpers in cabin suspension
Autorzy:: Shekhovtsov, K. V.
Sokolov-Dobrev, N. S.
Pobedin, A. V.
Liashenko, M. V.
Shekhovtsov, V. V.
Potapov, P. V.
Powiązania:: https://bibliotekanauki.pl/articles/243907.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: tractor cabin
suspension
standard vibroisolator
dynamic vibration damper
Opis:: This paper is devoted to describing of method of decreasing of vibration load level on tractor operator’s working place by means of using of vibrations dynamic dampers in cabin suspension (on other words – dynamic absorbers of dynamic vibroisolators). Standard cabin vibroisolators of tractors DT and VT series include monolith rubber block and have limited capabilities to change its elastic parameters adaptively during impact of vertical and lateral vibration loads with various frequencies. Elastic-damping properties of these vibroisolators does not allow to provide comfortable conditions for operator work because their abilities of vibration damping are not enough especially at low-frequency vibrations. Dynamic vibration dampers installed in cabin suspension were proposed by authors for decreasing of vibration load level on operator workplace. These dampers include additional masses connected to main mass due to elastic-damping elements. Several variants of dynamic vibroisolators schemes were proposed by authors. These schemes differ in quantity of additional masses (one, two or three) and type of connection between additional masses and main mass due elastic-damping elements (parallel or in series). Three-dimensional model of caterpillar chassis, suspension, engine, cabin and operator’s seat of tractor was created in software “Universal mechanism” for performing of computational research. On this model, researches of vibration of sprung mass were made for tractor motion with and without hook load at 3rd and 7th gears on smooth surface and on testing areas with single, periodic and random bumps. Research results indicate undoubtedly best vibroprotective properties of cabin’s suspensions with dynamic vibroisolators.
Źródło:: Journal of KONES; 2015, 22, 1; 276-284
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Compliance with legal aspects of the applying of e-Learning in the training of seafarers
Autorzy:: Sokolov, S. S.
Kovalnogova, N. M.
Mitrofanova, A. V.
Stepanov, V. A.
Gorobtsov, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/116321.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: legal aspects
e-Learning
e-Learning in the training of seafarers
STCW
Admiral Makarov State University of Maritime and Inland Shipping
Maritime Education and Training (MET)
MET system in Russia
applying of e-Learning
Opis:: The article examines applicability of the world experience of e-learning and distance education technologies structure to STCW recommendations and national legal requirements of the Russian Federation. There are comprehensive comparative analysis of a distance learning system and STCW recommendations. There are some results of the distance education system LMS “FARWATER” test period for the benefits of seafarers vocational education and the Admiral Makarov State University of Maritime and Inland Shipping (Admiral Makarov SUMIS) where the LMS “FARWATER” was designed.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 457-460
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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