17 Result(s)

Article

Study of the Antimicrobial Resistance of ZnO-Nanocoated Fabrics in Tropical Climates

The resistance of ZnO-nanocoated fabric samples to the action of mold fungi under laboratory and field conditions of the tropical climate of Vietnam was studied at the mycological site of the Hoa Lac Climatic ...

V. A. Karpov, Yu. L. Koval’chuk… in Theoretical Foundations of Chemical Engine… (2023)

Article

Development of a Combined Technology and Ultrasonic Scheme for Stimulation of Oil Recovery

Experimental and full-scale pilot tests of a newly developed thermoacoustic down-hole system and a combined technology in fields of Western Siberia and the Samara Oblast testify to their high efficiency. The e...

M. S. Mullakaev, V. O. Abramov, V. G. Prachkin in Chemical and Petroleum Engineering (2015)

Article

Reducing viscosity of paraffinic oils in ultrasonic field

Experimental data on treatment of oils from East Zhetybai and Ashchisai fields in ultrasonic field for reducing their dynamic viscosity on a pilot plant are reported.

M. A. Ershov, D. A. Baranov, M. S. Mullakaev… in Chemical and Petroleum Engineering (2011)

Article

Determination of the technological parameters for the sonochemical purification of oily water

Ultrasound allows for the significant intensification of modern technologies, providing for the reduction of their energy capacity and the improvement of the quality of the final product. An experimentally rev...

P. P. Keremetin, P. S. Parilov… in Theoretical Foundations of Chemical Engine… (2011)

Article

Physicochemical processes in a sonoplasma discharge

The experiments showed that the new form of electrical discharge that occurs in a liquid in an intense ultrasonic field above the cavitation threshold and exhibits volume glow throughout the space between elec...

V. O. Abramov, Yu. V. Andriyanov, E. V. Kisterev… in Inorganic Materials: Applied Research (2011)

Article

The efficiency of ultrasonic oscillations transfer into the load

The results of ultrasonic action to the substances have been presented. It is examined, the correlation between the electrical parameters of ultrasonic equipment and acoustic performances of the ultrasonic fie...

O. V. Abramov, V. O. Abramov, M. S. Mullakaev, V. V. Artem’ev in Acoustical Physics (2009)

Article

Ultrasonic technologies for extracting oil products from oil-bearing sands and contaminated soils

The kinetics of the extraction of oil products (bitumen, oil, and fuel oil) from natural and model oil-bearing sands after ultrasonic treatment was studied. The effects of the process temperature, the nature a...

O. V. Abramov, V. O. Abramov… in Theoretical Foundations of Chemical Engine… (2009)

Article

Ultrasonic activation of reagent purification of surface wastewaters from oil products

Reagent purification of water from oil contaminants can be intensified by preliminary ultrasonic short treatment of concentrated solutions. The major mechanism of the ultrasonic treatment of reagents is disper...

O. V. Abramov, V. O. Abramov, G. B. Veksler… in Theoretical Foundations of Chemical Engine… (2009)

Article

An ultrasonic technology for productivity restoration in low-flow boreholes

An analysis is presented of the mechanisms for ultrasonic action on processes in oil boreholes. The nature and features of the acoustic flow are examined, together with the scope for controlling the parameters...

M. S. Mullakaev, O. V. Abramov, V. O. Abramov… in Chemical and Petroleum Engineering (2009)

Article

Ultrasonic unit for restoring oil wells

A new generation of unit has been developed for acoustic stimulation of wells. Two design schemes are proposed for ultrasonic units, i.e., with a surface-based source of supply (generator) and with placement o...

M. S. Mullakaev, V. O. Abramov, A. A. Pechkov in Chemical and Petroleum Engineering (2009)

Article

Development and study of operating efficiency of technological ultrasonic installations

The state of the Russian market for technological ultrasonic (US) installations has been analyzed. For use in laboratory practice and in real industrial situations, a full set of US installations has been deve...

M. S. Mullakaev, O. V. Abramov, V. O. Abramov in Chemical and Petroleum Engineering (2008)

Article

Oil sand processing by ultrasonic technique

The kinetics of bitumen (asphalt), oil, and residual fuel oil extraction from oil sands by ultrasonic treatment has been studied. The influence of the working temperature of the process, characteristics of the...

O. V. Abramov, V. O. Abramov, S. K. Myasnikov… in Chemical and Petroleum Engineering (2008)

Article

Ultrasonic shock treatment of welded joints

We develop a method of ultrasonic shock treatment of welded joints. It is shown that ultrasonic shock treatment increases the yield stress and microhardness of welded joints and decreases the probability of fa...

W. Gust, H. I. Prokopenko, A. V. Kozlov, B. N. Mordyuk, V. O. Abramov in Materials Science (1999)

Article

Effect of niobium on the structure and properties of fast-cutting steels prepared by quenching from the liquid state

As a result of alloying with niobium, the thermal stability of the ribbons investigated increased by 100–150°C over the value for the standard R6M5-type steel containing the same amount of boron. At the same t...

O. V. Abramov, M. S. Mullakaev, R. A. Oganyan… in Metal Science and Heat Treatment (1993)

Article

Structure and properties of rapidly crystallized Al−Li alloy after compacting and aging

1. Compacting of the Al-2.6% Li alloy rapidly crystallized from the molten material at lower working temperature...

V. O. Abramov, O. V. Abramov, M. M. Kamalov… in Metal Science and Heat Treatment (1991)

Article

Effect of the chemical nature of the alloying element of the properties of amorphous alloys based on transition metals

V. O. Abramov, O. V. Abramov, A. N. Belokonov… in Metal Science and Heat Treatment (1990)

Article

Strengthening features of rapidly solidified aluminum alloyed with transition metals

V. O. Abramov, S. B. Maslenkov, V. L. Slivko… in Metal Science and Heat Treatment (1990)