Autor: Kozlov, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Charge Carrier Transport Properties in Single-Walled Carbon Nanotube Fibers
Autorzy:: Ksenevich, V.
Seliuta, D.
Martūnas, Z.
Kašalynas, I.
Valušis, G.
Galibert, J.
Kozlov, M.
Samuilov, V.
Powiązania:: https://bibliotekanauki.pl/articles/1813401.pdf
Data publikacji:: 2008-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.63.Fg
Opis:: Transport properties via temperature dependences of sample resistance R(T) and influence of microwave field of 10 GHz on the conductivity of the single-walled carbon nanotubes fibers are investigated. The R(T) dependences studied within 4.2-300 K can be well approximated by the Mott law for 3D variable range hopping below T=80 K and by typical law for fluctuation-induced tunnelling model within the temperature range 80-300 K. We associate the observed increase in the conductivity with microwave power by increase in hopping probability of the charge carriers between single-walled carbon nanotubes.
Źródło:: Acta Physica Polonica A; 2008, 113, 3; 1039-1042
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Prospects of Abrasive Treatment of Tough-To-Machine Materials
Autorzy:: Palacz, Magdalena
Ivanova, Tatiana N.
Kozlov, Alexander M.
Kaniak, Wojciech
Powiązania:: https://bibliotekanauki.pl/articles/2064680.pdf
Data publikacji:: 2021
Wydawca:: STE GROUP
Tematy:: face grinding
grinding wheel
steel
vortex air cooling
cooling-lubricant technological fluid
Opis:: In current conditions, great attention is paid to the quality of parts, which is in many ways determined by finishing operations of mechanical treatment, with surface grinding being the most widespread. Grinding process efficiency, abrasive tool wear intensity, machined surface quality and other features of grinding process depend on properties of the environment, where the cutting process takes place. Forced changing of conditions of this environment is one of the ways to control and optimize the grinding process, which can be reached due to finding new technological decisions. One of the most promising directions to solve this problem is the process of face grinding with discontinuous grinding tool and supply of cooling fluid or air in the cutting zone directly. Carried analysis of features of face grinding has shown that heat density can be decreased by the usage by grooved wheels with vortex air cooling or by supply of cooling-lubricant technological fluid. Obtained dependences of temperature field of part surface during grinding establish the influence of the length of working shoulders and grooves, vortex tubes number, outflow rate, temperature and flow rate of cold vortex flow of air. These data provide conscious control over the process of discontinuous face grinding by changing wheel grain size and grinding speed.
Źródło:: Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 166--177
2545-2827
Pojawia się w:: Multidisciplinary Aspects of Production Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Perspektywy wykorzystania zasobow grzybow lesnych na obszarach skazonych radionuklidami
Prospects concerning use of forest mushroom resources in areas contaminated by radionuclide
Autorzy:: Bulko, N.
Kozlov, A.
Shabaleva, M.
Tolkaceva, N.
Powiązania:: https://bibliotekanauki.pl/articles/45583.pdf
Data publikacji:: 2009
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: lesnictwo
uboczne uzytkowanie lasu
runo lesne
skazenia promieniotworcze
pierwiastki promieniotworcze
cez promieniotworczy
bioakumulacja
grzyby
Bialorus
Źródło:: Leśne Prace Badawcze; 2009, 70, 4; 403-406
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki