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Sangwan Lee, Kuk Cho, Hyunbae Park and Dooyong Cho
This study explored the economic influence of introducing fully autonomous trucks (ATs) on the total cost of operation (TCO) from the viewpoint of freight transport operators. We utilized the cost?benefit analysis and scenario planning frameworks using a...
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Ping Xiao and Haiyan Wang
In response to the optimal operation of ocean container ships, this paper presents a two-level planning model that takes into account carbon tax policies. This model translates the CO2 emissions of ships into carbon tax costs and aims to minimize the ove...
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Ján Takács, Zuzana Straková, Luká? Rácz
Pág. 10 - 15
Circulation pumps are mechanical devices, which are used to create the overpressure required for the transportation of a heat-transfer medium in heating technology as well as in other related technologies. In a circulation pump the mechanical energy gene...
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M. I. Mishchenko
Pág. 257 - 261
The operational expenses of the railway transport infrastructure and their dependence on the basic railway indices in modern condition are under investigation.
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Zbigniew Banaszak, Grzegorz Radzki, Izabela Nielsen, Rasmus Frederiksen and Grzegorz Bocewicz
This paper presents a declarative model of maintenance logistics for offshore wind farms. Its implementation in decision-making tools supporting wind turbine maintenance enables online prototyping of alternative scenarios and variants of wind turbine ser...
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Gal Perelman, Avi Ostfeld and Barak Fishbain
The operation of water distribution systems (WDS) is an energy-intensive process, which is subject to constraints such as consumer demands, water quality, and pressure domains. As such, tracing an operation policy in which constraints are met while energ...
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Jian Sun, Yiming Zhang, Haitao Chen and Jinyou Qiao
Present agricultural practices confront issues such as mismatches between tractors and implements, imprecise machinery allocation, and excessive machinery investment. Optimization of agricultural machinery systems was a potent remedy for these concerns. ...
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Zhibo Zhang, Bowen Zhou, Guangdi Li, Peng Gu, Jing Huang and Boyu Liu
Island microgrids play a crucial role in developing and utilizing offshore renewable energy sources. However, high operation costs and limited operational flexibility are significant challenges. To address these problems, this paper proposes a novel dual...
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V. I. Solomka,V. L. Horobets,V. I. Borshchov
Pág. 174 - 179
The article proposes fundamentals of working method of assessment of technical state of reinforced concrete span structures of bridges and determination of the volume and structure of their current maintenance, developed with the use of methods of reliab...
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V. I. Solomka,V. L. Horobets,V. I. Borshchov
Pág. 180 - 185
The article enlists fundamentals of the proposed method of estimating the volume and structure of currentmaintenance of reinforced concrete spans of bridges, according to their current state, developed with the use of methods of reliability theory and ma...
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Lucas B. de Faria, Guilhermina F. Teixeira, Andréia C. F. Alves, José J. Linares, Sérgio B. Oliveira, Artur J. Motheo and Flavio Colmati
This work presents the electrochemical degradation of the herbicide Diuron by anodic oxidation on a Ti/Ru0.3Ti0.7O2 metal mixed oxide anode using sulfate as the electrolyte. The study includes the influence of Diuron concentration and current density on ...
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Carlos C. Duarte and Nuno D. Cortiços
China promptly took the leading step to mitigate the spread of COVID-19, producing the first scientific guidelines assuming health above energy consumption and significantly changing HVAC/AHU operation. The research intended to fulfill the gap by measuri...
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Adam Tulecki, Maciej Szkoda
Pág. 386 - 406
The paper concerns an evaluation of the justifiability of modernisation of rail vehicles as a method for improving the efficiency regarding a reduction of operation and maintenance costs. A decision-making model was developed in order to evaluate the eff...
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Qingwu Gong, Jiazhi Lei and Jun Ye
With the penetration of distributed generators (DGs), operation planning studies are essential in maintaining and operating a reliable and secure power system. Appropriate siting and sizing of DGs could lead to many positive effects forthe distribution s...
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Aleksey Vyacheslavovich Terentiev,Tatiana Anatol'yevna Menukhova
Pág. 183 - 186
The article considers the current approach to the calculation of unit costs for maintenance and repair of the rolling stock of the automobile transport. In order to more accurately determine unit costs and the moment of the write-off of a car, the method...
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O. Yu. Papahov,A. M. Okorokov,O. M. Logvinov
Pág. 2012 - 204
The description of a calculation procedure of operation costs for shunting work during performance of shunting semitrips for making-up of train is considered.
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Andreas Neumann and Michaela Brchnelova
Electric space propulsion is a technology that is used in a continuously increasing number of spacecrafts. The qualification of these propulsion systems has to run in ground-based test facilities which requires long testing times and powerful pumping sys...
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Kristian Balzer and David Watts
Modern electrical power systems integrate renewable generation, with solar generation being one of the pioneers worldwide. In Latin America, the greatest potential and development of solar generation is found in Chile through the National Electric System...
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Walter Gil-González, Oscar Danilo Montoya and César Leonardo Trujillo-Rodríguez
This research addresses the efficient integration and sizing of flexible alternating current transmission systems (FACTS) in electrical distribution networks via a convex optimization approach. The exact mixed-integer nonlinear programming (MINLP) model ...
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Laura Patricia García-Pineda and Oscar Danilo Montoya
This research deals with the problem regarding the optimal siting and sizing of distribution static compensators (D-STATCOMs) via the application of a master?slave optimization technique. The master stage determines the nodes where the D-STATCOMs must be...
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