Zobrazeno 1 - 10
of 22
pro vyhledávání: '"R. S. Kashaev"'
Autor:
Tran Van Tung, R. S. Kashaev
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 22, Iss 3, Pp 90-96 (2020)
Described the generator of resonance radiofrequency with the step of change 50 kHz in the range 520 MHz and pulse programmer of the pulse sequences for relaxometer of proton magnetic resonance (PMR). Using algorithm of direct digital synthesis (DS
Externí odkaz:
https://doaj.org/article/14b220719d5245e8b1ec6b6c8de6e1ea
Autor:
Nguyen Chi Kien, R. S. Kashaev
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 22, Iss 2, Pp 108-116 (2020)
The article describes a bench for studying a system of a flow analyzer based on nuclear (proton) magnetic resonance (PMRA), used for the operational control of proton-containing multicomponent liquids (oils, fuels, oil and chemical products) and mixt
Externí odkaz:
https://doaj.org/article/0c340a874fee41c59c390b4137c8727e
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 21, Iss 6, Pp 111-117 (2020)
In this paper described the switching power supply (SPS) unit and represented its importance for electronic circuits in electronic devices. SPS directly affect the operation of electrical circuits and electronic equipment. In particular, this paper d
Externí odkaz:
https://doaj.org/article/a7ad417f3aa04340ad87475115e548d9
Autor:
R. S. Kashaev
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 0, Iss 1-2, Pp 20-26 (2017)
In the work described modernization of fuel supply of boiler rooms by transformation of water-hydrocarbon mixtures in water-fuel emulsions (WFE). Preparation of WFE is performed in the rotating magnetic and inhomogeneous electric fields with the proc
Externí odkaz:
https://doaj.org/article/956a79a7a90747ba9bcea04699991d08
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 19, Iss 5-6, Pp 119-131 (2017)
In the paper described system of automotive control of installation of rotary pump of oil-mining using parameters of oil-well liquid, measured by on-line proton magnetic resonance analyzer. Described theoretical basis of the system and its practical
Externí odkaz:
https://doaj.org/article/38559b9d9c1943bd84ea9418be1dfff8
Autor:
R. S. Kashaev, Nguyen Chi Kien
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 22, Iss 2, Pp 108-116 (2020)
The article describes a bench for studying a system of a flow analyzer based on nuclear (proton) magnetic resonance (PMRA), used for the operational control of proton-containing multicomponent liquids (oils, fuels, oil and chemical products) and mixt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c2e54a5bd004071ff9ad86e59550656
https://www.energyret.ru/jour/article/view/1311
https://www.energyret.ru/jour/article/view/1311
Publikováno v:
Petroleum Chemistry. 59:S21-S29
The physicochemical properties of crude oils (density, viscosity, asphaltene concentrations) from the Bach Ho oilfield (Vietnam) have been correlated with 1H NMR relaxation parameters (spin–lattice and spin–spin relaxation times T1i and T2i, resp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ea30d5faa56dfd281a4acd12276fdd6
https://doi.org/10.1134/s0965544119130073
https://doi.org/10.1134/s0965544119130073
Using method of pulse nuclear magnetic resonance relaxometry (NMRR) were studied paraffins in Romashkino deposit oils (Republic of Tatarstan, Russian Federation) and oils of BaCH-Ho deposit (Vietnam). As a studied samples was used Romashkino oils, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ac8da9f469a31b7e69c80911aabe54e
https://doi.org/10.9734/bpi/naer/v7/2354f
https://doi.org/10.9734/bpi/naer/v7/2354f
Publikováno v:
Journal of Applied Spectroscopy. 86:890-895
We have used proton magnetic resonance relaxometry to study the dependences of the spin–lattice and spin–spin relaxation times T1,2 on viscosity and concentration of asphaltenes + resins in crude oils, in particular from the Bach Ho field (Vietso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02cc4ba039b833c74d42aea5bc2bd779
https://doi.org/10.1007/s10812-019-00911-4
https://doi.org/10.1007/s10812-019-00911-4
Autor:
R. S. Kashaev
Publikováno v:
Russian Journal of Physical Chemistry A. 93:1497-1504
The principles of ordering to produce structural units that determine phase transitions in the series hydrocarbons ⇔ oil ⇔ heavy oil ⇔ tar oil ⇔ bitumen ⇔ carbenes ⇔ coke are determined experimentally via nuclear magnetic resonance relaxo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::781c6f193db6bcf52bcb22d0a0b0c1d7
https://doi.org/10.1134/s0036024419080132
https://doi.org/10.1134/s0036024419080132