List of publications on a keyword: «pillar»


Мировая и региональная экономика

Publication date: 11.01.2018
Evaluate the material Average score: 5 (Всего: 1)
Sargylana I. Protopopova
FSAEI of HE "M.K. Ammosov North-Eastern Federal University" , Саха /Якутия/ Респ

«Объект всемирного наследия ЮНЕСКО и воздействие на него при туристско-рекреационной деятельности (на примере Природного парка «Ленские столбы» Республики Саха (Якутия)»

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The article is devoted to the study and analysis of tourist and recreational activities in the territory of the Natural Park "Lena Pillars". In the course of the analysis, the natural and recreational potential of the Natural Park "Lena Pillars", positive and negative influences of tourist and recreational activities on its territory were revealed.

Технические науки

Publication date: 13.03.2018
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Aleksandr V. Kozhemiachenko , doctor of technical sciences
Sergei P. Petrosov , doctor of technical sciences, professor
Oleg S. Maslov
Vladislav V. Nikishin
Institute of Service and Entrepreneurship (a branch of) FSFEI of HE "Don State Technical University" , Ростовская обл

«Hermetic refrigerant compressor with increased cooling capacity and test bench for its operational reliability»

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The article presents the design of the refrigerant compressor characterized in that, in order to improve performance and operational reliability, each silencer is equipped with a cooling casing connected to the cooling jacket of the cylinder by means of a capillary tube, and the inlet pipe of the cooling medium is connected to the cooling housings. The article also presents the design of the stand for testing the proposed cold-rolled compressor for operational reliability with enhanced functionality.

Физика

Publication date: 05.12.2018
Evaluate the material Average score: 1 (Всего: 1)
Gennadiy G. Haydarov , candidate of technical sciences , associate professor
Andrey G. Haydarov , candidate of technical sciences, docent , associate professor
St. Petersburg State Technological Institute (Technological University) , Санкт-Петербург г

«Representation of capillary phenomena from the physical model of unpacking a liquid»

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Based on the physical model of «unpacking» a fluid, published in 1983 to explain the physical nature of surface tension, an explanation of capillary phenomena was proposed. The unified physical nature of the condensation process and the processes in the capillaries expressed in terms of the surface tension of the liquid is proved. To prove the applicability of the «unpacking» model for capillary phenomena, an empirical Borelli-Jurin formula for determining the height of fluid lifting in capillaries was theoretically derived depending on the magnitude of the surface tension. The assumptions under which the formula is obtained are indicated. In addition, the article proposes a new formula for determining the maximum height of liquid lift in the capillaries, depending on the critical temperature of the liquid and the molecular weight of the liquid.

Технические науки (электромеханика, приборостроение, машиностроение, металлургия и др.)

Publication date: 09.03.2017
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Aleksey S. Vasilyev , candidate of technical sciences
Mikhail V. Ivashnev , candidate of technical sciences
FSBEI of HE "Petrozavodsk State University" , Карелия Респ

«К вопросу выбора энергетических баз машин для защиты линейных объектов от древесно-кустарниковой растительности»

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The basic indicators that characterize the energy base of forest machines. Particular attention is paid to such databases for continuous cutting of trees and bushes.

Экономика предпринимательства, организация и управление предприятиями, отраслями, комплексами

Publication date: 15.02.2017
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Aleksey S. Vasilyev , candidate of technical sciences
Mikhail V. Ivashnev , candidate of technical sciences
FSBEI of HE "Petrozavodsk State University" , Карелия Респ

«К вопросу выбора движителя лесных машин»

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The issue of equipping track or wheelbase of forest machines has not been settled. We believe it appropriate considering the creation of patentable forest machines with wheel-crawler gear.

Технические науки

Publication date: 26.01.2017
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Madiyar A. Zharaspaev
FSBEI of HE "Saint Petersburg Mining University" , Санкт-Петербург г

«The results of experimental-industrial works on the redevelopment at the Zhaman-Aibat field (Republic of Kazakhstan)»

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This article describes the features of the transition to the redevelopment of the Zhaman-Aibat field. The author presents the results of experimental-industrial works for the redevelopment of the field, shows the various schemes of interchamber and barrier pillars, adopted in the experimental-industrial development. The conclusions are the following: there is a need for further survey work, using computer modeling, to determine the optimal options for redevelopment.

Publication date: 25.01.2017
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Madiyar A. Zharaspaev
FSBEI of HE "Saint Petersburg Mining University" , Санкт-Петербург г

«Experience of panel-and-pillar development system application at the Zhaman-Aibat field (Republic of Kazakhstan)»

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The article summarizes the experience of previously adopted and applied parameters of the settings panel-and-pillar development system at the Zhaman-Aibat field. It shows the results of the analysis of geomechanical monitoring of structural elements of panel-and-pillar development system at the field during 2008–2010. The dependence of rock spalling from the roof has been withdrawn. The graphs on the fact of destruction of the pillars have been shown. The author concluded that there is a need to continue the research works in this direction.