Публикации сотрудников: Новые ресурсы
Отображаемые элементы 121-140 из 5335
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Increasing supporting rod porcelain isolate at electric power substations
(2020-05)Supporting rod insulation is intended for insulating and fastening cathode parts of electrical installations at electric power substations. The insulation is set at outdoor switchgear of substations as a part of the main ... -
Calibration of Estimates on Direct Wildfire Emissions from Remote Sensing Data
(2019-12)This study is based on the processing of satellite imagery in the wave range 3.93–3.99 μm (Terra/Modis satellite) and numerical simulation results. It has been found for combustion conditions in Siberian forests that the ... -
Approximation of the High-Temperature Fire Zone Based on Terra/MODIS Data in the Problem of Subpixel Analysis
(2019-12)In this work, an improved approach of the pixel-based analysis of the Terra/MODIS imagery is proposed. The approach allows us to improve the accuracy in estimating characteristics of the combustion zone when detecting ... -
Pulse safety device with adaptive controller for technical systems with high reliability requirements
(2020-05)To ensure the protection of technical systems against excessive pressure, pulse-safety devices (pilot-operated relief values, or PORV) are used, which differ from spring-loaded safety valves in their increased throughput ... -
Stability study of magnetoelastic damper of high-speed machines
(2020-05)The article describes a new device for magnetoelastic damper of high-speed machines. The operation of the device is based on the strength of magnetic levitation and magnetoelastic interaction of the opposite parts. The ... -
Postfire Effects in Siberian Larch Stands on Multispectral Satellite Data
(2020-01)This work considers the dynamics of vegetation indices and surface temperature of postfire areas of different ages in larch forests of the permafrost zone of Siberia obtained using long-term Terra/MODIS satellite imagery. ... -
System for measurement and control of drill string vibration
(2020-05)The article discusses issues of ensuring effective and reliable measurement and control of drill string vibration. A system for active measurement and control of drill string vibration is presented. The system combines ... -
Self-contained process module with flow swirling for downhole equipment power supply
(2019-12)The present paper is dedicated to the development of resource-saving technologies for oil and gas complex, namely to the development of power supply for downhole equipment. The relevance of this research is caused by the ... -
Relief flow swirlers to control wax deposition formation inside downhole equipment
(2019-12)The present study describes problems of wax deposition formation on the surface of oil field equipment. In particular, the problem of wax deposition prevention inside tubing walls is considered. Wax prevention techniques ... -
Analysis of the causes of failures of pyrolysis units
(2019-12)This paper presents the classification of pyrolysis units for the disposal of oil waste (oil sludge). Using statistical methods of quality control (Ishikawa diagrams and Pareto diagrams), the main factors affecting the ... -
Method of measuring vibratory condition of a drill string
(2019-11)The article discusses issues related to the improvement of the operational reliability of downhole measurement systems. The circumstances of insufficient readings accuracy due to severe operating conditions are shown. The ... -
Droplet Spreading and Wettability of Abrasive Processed Aluminum Alloy Surfaces
(2020-01)One of the main cause of a droplet metastable state is found to be surface roughness. This state is characterized by a large contact angle hysteresis and condition when the static contact angle is larger than the advancing ... -
Study of microrelief forming technology on sliding bearings for oil and gas centrifugal units
(2019-12)The present paper is dedicated to improving the quality, reliability and operational characteristics of machines that is a major challenge for modern oil and gas engineering. Improving the quality of machines, increasing ... -
Intensification of heat and mass transfer by the interaction of two drops of water of different sizes
(2020-03)An interaction of an incident drop on a sessile drop located on a hot wall was experimentally investigated. The behavior of convection with and without graphite particles was studied. Graphite particles lead to a decrease ... -
Processing capabilities of reducers with eccentric gearing for rotary drilling rigs
(2019-12)The present paper is dedicated to assessment of possibilities for using reducers with eccentric involute gearing in the system of the drilling rig top drive. Modern problems of top drive systems, in particular disadvantages ... -
Expert analysis of the automation equipment for the integrated oil treatment unit
(2019-11)The article discusses the problem of control automation for integrated oil treatment unit. The main goals of such automation are presented, the achievement of which allows increasing oil treatment unit productivity, as ...