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Wyszukujesz frazę "Abramova, V." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Defining quality work of a pneumatic seeding device with an extra disk
Autorzy:
Abramova, V.
Vasylkovskyi, O.
Vasylkovska, K.
Powiązania:
https://bibliotekanauki.pl/articles/411329.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
seeding device
single seed sowing
cell
seeds
extra disk
quality
Opis:
This article is devoted to solving the problem of single-seed sugar beet sowing with a pneumatic seeding device. As a result of experimental researches the influence of sowing device parameters equipped with an additional disk for quality sowing were defined.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 3; 191-196
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Frasnian-Famennian boundary in the Southern Urals
Autorzy:
Abramova, A. N.
Artyushkova, O. V.
Powiązania:
https://bibliotekanauki.pl/articles/2058836.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Southern Urals
Late Devonian
Kellwasser Event
biostratigraphy
Barma Beds
brachiopods
Opis:
On the western slope of the Southern Urals, a continuous conodont zone sequence within different facies of the Frasnian-Famennian (F-F) boundary beds is documented. In all the sections the boundary between both stages runs within lithologically uniform successions and can be determined only by a sharp faunal change. In brachiopod facies, it is placed within brachiopod shell beds and relates to the base of the Barma Beds, i.e., the level marked by a simultaneous appearance of the index brachiopod species Pugnoides(?) markovskii and the zonal conodont species Palmatolepis triangularis. In goniatite facies, the F-F boundary can be traced by the disappearance of diverse Frasnian conodonts and goniatites of the genus Manticoceras, coupled with the first occurrence of the conodont Pa. triangularis; the sequence shows also the well-known icriodid blooms in the earliest Famennian. Finds of Famennian goniatites (representatives of the genus Cheiloceras) are confined to the crepida zones. In the sections of theWest-Zilair, where the F-F boundary passage consists of siliceous- terrigenous deposits, the boundary can be established only by a change in conodont assemblages. In all the sections under investigation the F-F boundary level shows a drastic faunal change that corresponds to the global Kellwasser Event.
Źródło:
Geological Quarterly; 2004, 48, 3; 217-323
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of Type SiMo Ductile Irons at High Temperatures
Autorzy:
Roučka, J.
Abramová, E.
Kaňa, V.
Powiązania:
https://bibliotekanauki.pl/articles/354702.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Si-Mo cast irons
mechanical properties at high temperatures
thermal stability of structure
oxidation resistance
Opis:
Ductile irons of the type of Si-Mo are characterized by increased resistance to long-term influence of high temperatures and cyclic temperature changes. They are mainly used in castings of combustion engine exhaust piping and other castings utilized at temperatures of up to 850°C. The aim of the study is to verify the mechanical properties of non-alloyed cast iron EN CSN GJS 450, SiMo4-0.5 and SiMo5-1 ductile irons at temperatures of 700 to 800°C, and the extent of their superficial oxidation after longterm annealing at a temperature of 900°C. Via chemical microanalysis the composition of oxidation products in the surface layer was evaluated.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 2; 601-607
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High kinetic energy dense plasma jet
Autorzy:
Voronin, A.
Gusev, V.
Petrov, Y.
Sakharov, N.
Abramova, K.
Hellblom, K.
Powiązania:
https://bibliotekanauki.pl/articles/147488.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
plasma gun
spherical tokamak
fuelling system
Opis:
Researches on the plasma jet source and injection of hydrogen plasma and neutral gas jets into the Globus-M spherical tokamak are presented. A novel source of dense plasma with high directed velocity is designed, constructed and investigated. This is a double stage system consisting of an intense source utilizing titanium-hydride grains for neutral gas production and a conventional pulsed coaxial accelerator. Optimization of the accelerator parameters, so as to achieve a maximum possible flow velocity with a limited discharge current and a reasonable length of the coaxial electrodes is performed. The calculations are compared with the experiment. A test bed is used for investigation of the intense plasma jet generated by a plasma gun. Plasma jet parameters, among them pressure distribution across the jet, flow velocity, plasma density etc., were measured. Plasma jets with densities of up to 1022 m 3, total numbers of accelerated particles (1 5) . 1019, and flow velocities of 50 100 km/s were successfully injected into the plasma column of the Globus-M tokamak. Interferometric and Thomson scattering measurements confirmed a deep jet penetration and a fast density rise (<0.5 ms) at all spatial points up to the radius r H 0.3a. The injection did not result in plasma degradation.
Źródło:
Nukleonika; 2006, 51, 1; 85-92
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stratigraphy and geological events at the Frasnian-Famennian boundary in the Southern Urals
Autorzy:
Veimarn, A. B.
Puchkov, V. N.
Abramova, A. N.
Artyushkova, O. V.
Baryshev, V. N.
Degtyaryov, K. E.
Kononova, L. I.
Maslov, V. A
Mosejchuk, V. M.
Pazukhin, V. N.
Pravikova, N. V.
Tevelev, A. V.
Yarkova, A. V.
Powiązania:
https://bibliotekanauki.pl/articles/2058843.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Frasnian-Famennian boundary
Southern Urals
conodonts
superplume
Opis:
Detailed biostratigraphic correlation of late Frasnian and Famennian sections in the Southern Urals shows that the key global scale events near the boundary of Frasnian and Famennian are clearly expressed in combination with important regional scale tectonic events. The maximum regression occured during triangularis zones time, being recorded as common hiatuses. The beginning of specific ultra- potassic mantle volcanism took place during the linguiformis Zone. Processes of olistostrome deposition, uplift of the Uraltau zone, the start of flysch deposition, and exhumation of the high pressure-low temperature Maksiutovo metamorphic complex also took place very close to the Frasnian-Famennian boundary, as the general regression coincided with active local tectonic movements as the Magnitogorsk island arc collised with the East European continent. The global scale events at the F-F boundary are connected with activity of the Late Devonian superplume, which encompassed a vast area of the Kazakhstanian, East European, Siberian, Gondwana and South Chinese plates.
Źródło:
Geological Quarterly; 2004, 48, 3; 233--244
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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