Comparison of two control strategies for range extender hybrid electric vehicles

Specific features of improving automobile road complex of the Republic of Uzbekistan

“…As a result, the development of a methodology for planning repair works is aimed at justifying the most rational set of roads, sections and types of works and maximising the economic effect for users. In this case, it is necessary to first determine those parameters or road sections that will contribute to the greatest reduction in transport costs, thus avoiding significant additional costs due to non-performance or inadequate repair of motorways [11].…”

“…The speed of transport, acting as a total value of the technical speed of movement of vehicles and the organisation of movement of commodity masses (objects of transport), has a direct influence on the absolute and relative speed of turnover of funds of industrial enterprises and trade organisations. Increasing the rate of turnover leads to acceleration of the process of expanded reproduction [11,12].…”

“…The result of ARC activity is a service that changes the spatial position of goods. In industrial production, trade and services, the cost of transported goods increases during transport, as transport involves the use of material and technical resources, including the improvement of traffic and operational indicators of motorways [11,12].…”

Development of methods for calculating thermal conductivity of gas condensates-alternative motor fuels

“…where ρ1 and ρ2 are the density of the oil product at temperatures T1 and T2 The accuracy of determining β depends on the selected temperature range and the error in determining ρ1 and ρ2, which should be quite high, on the order of ±0.05-0.1% [5]. To process experimental data on the thermal conductivity of gas condensates using the method under consideration, experimental data on the density of gas condensates in Central Asia [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26], which were measured according to the author's estimate with a maximum error of ±0.1%, were used. The proposed empirical equations for calculating λ of heavy petroleum products, obtained on the basis of the correlation between thermal conductivity and complexes and in the temperature range −20...150°С, give an error of no more than 8%.…”