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Journal articles on the topic 'Automotive Dispatching Mathematical models'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Ganesan, Viswanath Kumar, S. Vinodh, Malolan Sundararaman, M. Vimala Rani, and M. Mathirajan. "Special Issue on Contemporary Research Studies in Operations Research, Business Analytics, and Business Intelligence." International Journal of Mathematical, Engineering and Management Sciences 10, no. 3 (2025): 598–600. https://doi.org/10.33889/ijmems.2025.10.3.031.

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Globally, enterprises are undergoing significant transformation in line with developments based on industrial revolution by leveraging extensive computing resources, data capture technologies, information processing systems, and advanced data science models that span analytics, optimization, and algorithmic intelligence. The global market's increasing demand, diverse resource supply options, global competition, and environmental protection needs are driving organizations to adopt sustainable strategies. These involve utilizing information technology and analytics more effectively, innovating m

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Yüksel, Damla, Damla Kızılay, Hande Öztop, and Sinem Özkan. "Mathematical Models for Milk Dispatching Problem." Journal of Transportation and Logistics 6, no. 2 (2021): 217–35. http://dx.doi.org/10.26650/jtl.2021.940506.

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Moradi-Afrapoli, A., S. Upadhyay, and H. Askari-Nasab. "Truck dispatching in surface mines -Application of fuzzy linear programming." Journal of the Southern African Institute of Mining and Metallurgy 121, no. 9 (2021): 1–8. http://dx.doi.org/10.17159/2411-9717/522/2021.

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Material handling in surface mines accounts for around 50% of the operational cost. Optimum truck dispatching plays a critical role in the reduction of this operational cost in truck and shovel surface mines. Researchers in this field have presented several mathematical models to solve the truck dispatching problem optimally. However, a critical survey of the literature has shown that three significant drawbacks exist in the available truck dispatching models. The published models underestimate the importance of the interaction between truck fleet, shovel fleet, and the processing plants. They

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Rancilio, Giuliano, Alessia Cortazzi, Giacomo Viganò, and Filippo Bovera. "Assessing the Nationwide Benefits of Vehicle–Grid Integration during Distribution Network Planning and Power System Dispatching." World Electric Vehicle Journal 15, no. 4 (2024): 134. http://dx.doi.org/10.3390/wevj15040134.

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The diffusion of electric vehicles is fundamental for transport sector decarbonization. However, a major concern about electric vehicles is their compatibility with power grids. Adopting a whole-power-system approach, this work presents a comprehensive analysis of the impacts and benefits of electric vehicles’ diffusion on a national power system, i.e., Italy. Demand and flexibility profiles are estimated with a detailed review of the literature on the topic, allowing us to put forward reliable charging profiles and the resulting flexibility, compatible with the Italian regulatory framework. D

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Jovanović, Nenad. "Angažovanje generatora i potrebe balansnih rezervi u prisustvu intermitentnih OIE: Studija slučaja elektroenergetskog sistema Srbije." Energija, ekonomija, ekologija XXIV, no. 3 (2022): 16–24. http://dx.doi.org/10.46793/eee22-3.16j.

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Intermittent electricity generation of the various renewable energy sources sets additional burden on generation unit dispatching and reserve planning in day-ahead electricity market. The conventional unit commitment models which include rump-up and rump-down limits are usually presented with stepwise mathematical functions without clear distinction between power and energy. This paper presents a case study of generation unit dispatching planning approach for the case of pricewise-linear functions from one time interval to another, taking into account actual ramping trajectories thus providing

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Dimitrova, Emiliya. "Models of Objects of Control in SCADA System for Monitoring and Operational Dispatching in Sofia Metropolitan." Information Technologies and Control 11, no. 3 (2014): 30–35. http://dx.doi.org/10.2478/itc-2013-0013.

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Abstract Supervisory Control and Data Acquisition systems (SCADA) are often used in some important industry sectors, such as production and distribution of electricity, transport management, etc. The purpose of this paper is to establish models of SCADA system, DISIM that is incorporated into the Central Dispatching Station of Sofia Metropolitan. Its functions are related to remote visualization and management of the structures and devices in both directions - Trains operation (DISIM-V) and Power transmission system (DISIM-Å). The suggested structural models and mathematical description are us

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Козин, A. Kozin, Хмелев, and R. Khmelev. "SIMULATION OF FAULTS IN AUTOMOTIVE ENGINES." Alternative energy sources in the transport-technological complex: problems and prospects of rational use of 2, no. 2 (2015): 440–44. http://dx.doi.org/10.12737/19306.

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The modern stage of theoretical research in the automotive industry are characterized by extensive use of mathematical models, the complexity of which is constantly who will melt. Mathematical simulation model allows to obtain an extensive statistical material on changes in the numbers of working processes, as vehicle and car &#34;as a whole&#34; in the event of malfunctions or failure

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Becker, Julia, Lisa Kurland, Erik Höglund, and Karin Hugelius. "Dynamic ambulance relocation: a scoping review." BMJ Open 13, no. 12 (2023): e073394. http://dx.doi.org/10.1136/bmjopen-2023-073394.

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ObjectivesDynamic ambulance relocation means that the operators at a dispatch centre place an ambulance in a temporary location, with the goal of optimising coverage and response times in future medical emergencies. This study aimed to scope the current research on dynamic ambulance relocation.DesignA scoping review was conducted using a structured search in PubMed, Scopus and Web of Science. In total, 21 papers were included.ResultsMost papers described research with experimental designs involving the use of mathematical models to calculate the optimal use and temporary relocations of ambulan

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Gao, Yinping, Chun-Hsien Chen, and Daofang Chang. "A Machine Learning-Based Approach for Multi-AGV Dispatching at Automated Container Terminals." Journal of Marine Science and Engineering 11, no. 7 (2023): 1407. http://dx.doi.org/10.3390/jmse11071407.

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The dispatching of automated guided vehicles (AGVs) is essential for efficient horizontal transportation at automated container terminals. Effective planning of AGV transportation can reduce equipment energy consumption and shorten task completion time. Multiple AGVs transport containers between storage blocks and vessels, which can be regarded as the supply sides and demand points of containers. To meet the requirements of shipment in terms of timely and high-efficient delivery, multiple AGVs should be dispatched to deliver containers, which includes assigning tasks and selecting paths. A con

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STETSIUK, Viktor, and Kostyantyn HORIASCHENKO. "ANALYSIS OF MATHEMATICAL MODELS OF MULTI-FREQUENCY PIONEERING AUTOMOTIVE SYSTEMS." Herald of Khmelnytskyi National University. Technical sciences 315, no. 6 (2022): 100–103. http://dx.doi.org/10.31891/2307-5732-2022-315-6(2)-100-103.

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In the work the analysis of mathematical models of multi-frequency piezoresonance oscillatory systems is carried out. It is indicated on the essence of the phenomenon of multifrequency excitation, as a normal physical property of quartz resonators. However, for the tasks of constructing highly stable self-oscillating systems as a source of reference oscillation, this property of the CR is undesirable, moreover, it is struggling with all possible methods. As a result of the analysis of mathematical models of multifrequency oscillation systems, it is established that none of them allows to fully

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Dement'eva, Marina, and Anastasiya Dement'eva. "Modeling work of the dispatching service of high-rise building as queuing system." E3S Web of Conferences 33 (2018): 03067. http://dx.doi.org/10.1051/e3sconf/20183303067.

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The article presents the results of calculating the performance indicators of the dispatcher service of a high-rise building as a queuing system with an unlimited queue. The calculation was carried out for three models: with a single control room and brigade of service, with a single control room and a specialized service, with several dispatch centers and specialized services. The aim of the work was to investigate the influence of the structural scheme of the organization of the dispatcher service of a high-rise building on the amount of operating costs and the time of processing and fulfill

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Liu, Yilin. "Research On Nonlinear Mathematical Models in Power Load Distribution and Their Engineering Applications." Highlights in Science, Engineering and Technology 140 (May 23, 2025): 352–57. https://doi.org/10.54097/7059m330.

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This paper focuses on the field of power load distribution, and devotes itself to the study of nonlinear mathematical model and its application in power engineering. By systematically analyzing the factors that affect the distribution of power load, such as user behavior, characteristics of electrical equipment, time and environment, a nonlinear mathematical model with strong pertinence is constructed. In the solution and verification, the model is trained by iterative method and the actual monitoring data. The results show that the model shows high accuracy in forecasting power load distribut

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Previati, Giorgio, Massimiliano Gobbi, and Giampiero Mastinu. "Mathematical models for farm tractor rollover prediction." International Journal of Vehicle Design 64, no. 2/3/4 (2014): 280. http://dx.doi.org/10.1504/ijvd.2014.058486.

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Saukh, S., and А. Borysenko. "Cluster and Representative Models for Generation Units of Flexible Grids with Small Modular Reactors." Nuclear and Radiation Safety, no. 1(101) (March 13, 2024): 49–58. http://dx.doi.org/10.32918/nrs.2024.1(101).05.

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The analysis of existing mathematical models for power systems with large shares of electricity production by NPP and renewable energy sources generation was carried out. The low level of adequacy is shown for power system models used in the problems of long-term development planning for generating plants with nuclear fuel and renewable energy sources. In order to plan the development of power systems at the current stage of technological changes in the electric power industry, new models of load modes for NPP units and generating equipment with renewable energy sources are proposed. Dis

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Liu, Hangming, Huirong Zhao, Jincheng Yang, and Daogang Peng. "Research on Optimal Operation of Power Generation and Consumption for Enterprises with Captive Power Plants Participating in Power Grid Supply–Demand Regulation." Energies 17, no. 9 (2024): 2106. http://dx.doi.org/10.3390/en17092106.

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Wind and solar power curtailment and the difficulty of peak regulation are issues that urgently need to be addressed in the process of China’s new electric power system. Enterprises with captive power plants (ECPPs) are large-capacity power consumers and producers, with significant optimization and adjustment potential on both the supply and demand sides. This paper aims to promote the active participation of ECPPs in grid supply–demand regulation and proposes an optimization model for the power generation and consumption of ECPPs based on a day-ahead, intra-day two-stage dispatching model. Fi

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Zhang, Dalin, Yi Xu, Yunjuan Peng, et al. "Prediction of Train Station Delay Based on Multiattention Graph Convolution Network." Journal of Advanced Transportation 2022 (February 21, 2022): 1–12. http://dx.doi.org/10.1155/2022/7580267.

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Train station delay prediction is always one of the core research issues in high-speed railway dispatching. Reliable prediction of station delay can help dispatchers to accurately estimate the train operation status and make reasonable dispatching decisions to improve the operation and service quality of rail transit. The delay of one station is affected by many factors, such as spatiotemporal factor, speed limitation or suspension caused by strong wind or bad weather, and high passenger flow caused by major holiday. But previous studies have not fully combined the spatiotemporal characteristi

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Cao, Xiaoqing, He Li, Di Chen, Qingrui Yang, Qinyuan Wang, and Hongbo Zou. "A Low-Carbon and Economic Optimal Dispatching Strategy for Virtual Power Plants Considering the Aggregation of Diverse Flexible and Adjustable Resources with the Integration of Wind and Solar Power." Processes 13, no. 8 (2025): 2361. https://doi.org/10.3390/pr13082361.

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Under the dual-carbon goals, with the rapid increase in the proportion of fluctuating power sources such as wind and solar energy, the regulatory capacity of traditional thermal power generation can no longer meet the demand for intra-day fluctuations. There is an urgent need to tap into the potential of flexible load-side regulatory resources. To this end, this paper proposes a low-carbon economic optimal dispatching strategy for virtual power plants (VPPs), considering the aggregation of diverse flexible and adjustable resources with the integration of wind and solar power. Firstly, the meth

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Jiahui, Tang, Zhang Yuanbiao, Peng Churu, and Huang Xinxin. "Installation and Dispatch of the Traffic Patrol Service Platform." International Journal of Statistics and Probability 6, no. 1 (2016): 95. http://dx.doi.org/10.5539/ijsp.v6n1p95.

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In this paper, we construct three mathematical models to install and dispatch the traffic patrol service platform properly based on the real data of a certain city. Firstly, we build the shortest path model based on the Floyd algorithm to determine the jurisdictional of each platform. Then, we designed the dispatch model combined with 0-1 integer programming and the Hungarian algorithm to find the dispatching schemes when coming across large-scale emergencies. Lastly, we build the multiple-objective location model to optimize the present distribution situation of the traffic patrol platforms c

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Klyuev, R. V., E. R. Guzueva, and Yu N. Bulatov. "Mathematical modeling of power consumption based on rank analysis." Journal of Physics: Conference Series 2176, no. 1 (2022): 012090. http://dx.doi.org/10.1088/1742-6596/2176/1/012090.

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Abstract In the article, based on the application of the rank analysis of the technocenosis, mathematical modeling of electricity consumption by consumers for the production of hard alloys is carried out. Two methodological levels of research in the field of energy-saving and power consumption are presented. At the same time, it was found that rank analysis allows you to streamline information, effectively predict power consumption by individual objects to identify dynamics, and visually represent objects with abnormal power consumption. The analysis of the results obtained confirms the effici

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Saputri Said, Retno, Sri Subarinah, Baidowi Baidowi, and Sripatmi Sripatmi. "Kemampuan Representasi Matematis Ditinjau Dari Self Efficacy Siswa Kelas VIII Tahun Ajaran 2020/2021." Griya Journal of Mathematics Education and Application 1, no. 3 (2021): 306–15. http://dx.doi.org/10.29303/griya.v1i3.84.

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This study aimed to describe the mathematical representation ability in terms of self-efficacy students of grade VIII SMP Negeri 6 Mataram in academic year 2020/2021. The research method used was descriptive research with qualitative approach. The instruments used in this study were self-efficacy questionnaires, mathematical representation ability tests and interview guides. The research subjects were 31 students of grade VIII E with 22 students having high self-efficacy and 9 students having low self-efficacy. Then 3 students from each category of self-efficacy were selected to be given a tes

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Zhai, Zhikang, Ying Yang, Yu Shen, Yuxiong Ji, and Yuchuan Du. "Assessing the Impacts of Autonomous Bus-on-Demand Based on Agent-Based Simulation: A Case Study of Fuyang, Zhejiang, China." Journal of Advanced Transportation 2020 (November 23, 2020): 1–15. http://dx.doi.org/10.1155/2020/7981791.

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This paper envisions and assesses the performance of an autonomous bus-on-demand (ABoD) system. We take Fuyang, Zhejiang, China, as the study area to investigate the spatiotemporal distribution of bus travel demand during workdays, and we propose replacing inefficient bus routes with the ABoD system. Agent-based models with various bus dispatching and operation control strategies are constructed to evaluate the performance of the ABoD system. The behaviors and interactions of the agents, passengers, autonomous buses, and a control center are designed. After the verification of the simulated bu

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Junevičius, Raimundas, and Marijonas Bogdevičius. "MATHEMATICAL MODELLING OF NETWORK TRAFFIC FLOW." TRANSPORT 24, no. 4 (2009): 333–38. http://dx.doi.org/10.3846/1648-4142.2009.24.333-338.

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The article describes mathematical models of traffic flows to initiate different traffic flow processes. Separate elements of traffic flow models are made in a way to be connected together to get a single complex model. A model of straight road with different boundary conditions is presented as a separate part of the network traffic flow model. First testing is conducted in case the final point of the whole modelled traffic line is closed and no output from that point is possible. The second test is performed when a constant value of traffic flow speed and traffic flow rate is entered. Mathema

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Díaz-Parra, Ocotlán, Jorge A. Ruiz-Vanoye, Beatriz Bernábe Loranca, Alejandro Fuentes-Penna, and Ricardo A. Barrera-Cámara. "A Survey of Transportation Problems." Journal of Applied Mathematics 2014 (2014): 1–17. http://dx.doi.org/10.1155/2014/848129.

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This paper aims at being a guide to understand the different types of transportation problems by presenting a survey of mathematical models and algorithms used to solve different types of transportation modes (ship, plane, train, bus, truck, Motorcycle, Cars, and others) by air, water, space, cables, tubes, and road. Some problems are as follows: bus scheduling problem, delivery problem, combining truck trip problem, open vehicle routing problem, helicopter routing problem, truck loading problem, truck dispatching problem, truck routing problem, truck transportation problem, vehicle routing pr

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Alavi, Behrus, Thomas Illing, Felician Campean, Paul Spencer, and Amr Abdullatif. "Quantifying Automotive Lidar System Uncertainty in Adverse Weather: Mathematical Models and Validation." Applied Sciences 15, no. 15 (2025): 8191. https://doi.org/10.3390/app15158191.

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Lidar technology is a key sensor for autonomous driving due to its precise environmental perception. However, adverse weather and atmospheric conditions involving fog, rain, snow, dust, and smog can impair lidar performance, leading to potential safety risks. This paper introduces a comprehensive methodology to simulate lidar systems under such conditions and validate the results against real-world experiments. Existing empirical models for the extinction and backscattering of laser beams are analyzed, and new models are proposed for dust storms and smog, derived using Mie theory. These models

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Wu, L. M., Nan Hui Lai, and G. T. Wang. "Measurement and Simulation of Automotive Eddy Current Retarder Based on Virtual Reality." Key Engineering Materials 392-394 (October 2008): 93–97. http://dx.doi.org/10.4028/www.scientific.net/kem.392-394.93.

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Structure and working principles of eddy current retarder (ECR) are discussed, as well as performance requirements of real-time virtual testing and simulation. On the basis of hardware testing platform, virtual models of vehicle and retarder are embedded into application program. In the testing system, Vega API function library is used for second development to control the 3D models, and Visual C++ is used for mathematical models call from MATLAB to simulate the working condition. Integrated with virtual instrument and virtual environment, the limitation of former simulation is broken through.

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Klyuev, Roman V., Igor I. Bosikov, Oksana A. Gavrina, and Vladimir Ch Revazov. "System analysis of power consumption by nonferrous metallurgy enterprises on the basis of rank modeling of individual technocenosis castes." MATEC Web of Conferences 226 (2018): 04018. http://dx.doi.org/10.1051/matecconf/201822604018.

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To increase energy efficiency at non-ferrous metallurgy enterprises, an integrated system approach for estimation of electricity consumption is needed. The paper presents the results of a rank analysis of the power consumption of individual castes of process equipment on the basis of an integrated energy survey of the enterprise. A methodology for constructing mathematical models for calculating and predicting electric power consumption for all castes of the ranked H-distribution of technocenosis has been developed. For the first time, according to the established regularity of the H-distribut

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Karpušenkaitė, Aistė, Tomas Ruzgas, and Gintaras Denafas. "Time-series-based hybrid mathematical modelling method adapted to forecast automotive and medical waste generation: Case study of Lithuania." Waste Management & Research: The Journal for a Sustainable Circular Economy 36, no. 5 (2018): 454–62. http://dx.doi.org/10.1177/0734242x18767308.

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The aim of the study was to create a hybrid forecasting method that could produce higher accuracy forecasts than previously used ‘pure’ time series methods. Mentioned methods were already tested with total automotive waste, hazardous automotive waste, and total medical waste generation, but demonstrated at least a 6% error rate in different cases and efforts were made to decrease it even more. Newly developed hybrid models used a random start generation method to incorporate different time-series advantages and it helped to increase the accuracy of forecasts by 3%–4% in hazardous automotive wa

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Wang, Ning, and Jiahui Guo. "Modeling and Optimization of Multiaction Dynamic Dispatching Problem for Shared Autonomous Electric Vehicles." Journal of Advanced Transportation 2021 (November 15, 2021): 1–19. http://dx.doi.org/10.1155/2021/1368286.

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The fusion of electricity, automation, and sharing is forming a new Autonomous Mobility-on-Demand (AMoD) system in current urban transportation, in which the Shared Autonomous Electric Vehicles (SAEVs) are a fleet to execute delivery, parking, recharging, and repositioning tasks automatically. To model the decision-making process of AMoD system and optimize multiaction dynamic dispatching of SAEVs over a long horizon, the dispatching problem of SAEVs is modeled according to Markov Decision Process (MDP) at first. Then two optimization models from short-sighted view and farsighted view based on

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Junevičius, Raimundas, Marijonas Bogdevičius, and Ádám Török. "MODELLING OF INTERNAL COMBUSTION ENGINES’ EMISSION THROUGH THE USE OF TRAFFIC FLOW MATHEMATICAL MODELS." TRANSPORT 26, no. 3 (2011): 271–78. http://dx.doi.org/10.3846/16484142.2011.621978.

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Road traffic flows on a straight road segment are modelled in this article. The mathematical model of traffic flows has been constructed by using the method of lumped parameters. CO2, CO, CH, NOx, PM regression equations of internal combustion engines’ (ICE) emission has been developed. The accuracy of regression equations is 0.98÷0.99. The article presents assumptions for constructing the mathematical model, description of the mathematical model and gives simulation results. Traffic flow parameters, such as traffic flow concentration and traffic flow speed are presented as modelling results.

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Zhang, Yu Fan, Zhi Hao Ji, Jin Yan Liu, et al. "Study on Mathematical Model in Working Process of Automotive Air Conditioning Scroll Compressor." Applied Mechanics and Materials 741 (March 2015): 572–76. http://dx.doi.org/10.4028/www.scientific.net/amm.741.572.

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In order to study the working features of automotive air conditioning scroll compressor, this paper uses mathematical model of working process to analyze it. After studying working process, a equation of suction volume is given. The thermodynamic model of compression chamber and back pressure chamber includes mass conservation and energy conservation. Based on Hydromechanics, leakage models of radial leakage and tangential leakage are discussed. The model lays a foundation of automotive air conditioning scroll compressor performance simulation.

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Ferrarotti, Annalisa, Elisa Vittoria Ghiggini, Riccardo Rocca, et al. "Simulation of Corrosion Phenomena in Automotive Components: A Case Study." Materials 16, no. 15 (2023): 5368. http://dx.doi.org/10.3390/ma16155368.

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Mathematical modelling and software simulation nowadays are very effective tools for both understanding and predicting corrosion processes and the protection of metallic components. COMSOL Multiphysics 5.6 software provides validated mathematical models that can be used, for a given geometry, as a tool to predict and prevent corrosion of components. The corrosion of zinc-coated steel sheets has been studied in this work by comparing results of the simulations with laboratory tests carried out in a salt spray. Results of both the mathematical modelling and empirical tests give the possibility t

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Kulagin, V. A. "Development of a complex of mathematical models of a vehicle suspension for fatigue life analysis." Izvestiya MGTU MAMI 15, no. 4 (2021): 33–42. http://dx.doi.org/10.31992/2074-0530-2021-50-4-33-42.

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The reduction in the duration of the development of new vehicles and the associated desire to reduce the costs of automotive plants contribute to a more active application of mathematical modeling to solve engineering problems. The tasks, which are analyzing and predicting the fatigue life of vehicle components and assemblies, can be solved using a set of methods and tools of mathematical modeling. This article discusses the development of a complex of mathematical models of the front and rear suspensions of a passenger automobile, which have the properties necessary for accurate reprodu

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Blagoveshchensky, Vladislav G., Andrey E. Krasnov, Ivan G. Blagoveshchensky, Maxim Yu Music, Viktor V. Golovin, and Margarita M. Blagoveshchenskaya. "Development of structural-parametric and mathematical models for separating sunflower seeds for halva production." Processes and Food Production Equipment 14, no. 3 (2021): 30–37. http://dx.doi.org/10.17586/2310-1164-2021-14-3-30-37.

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Yang, King H. "Review of mathematical human models for incorporation into vehicle safety design." International Journal of Vehicle Design 26, no. 4 (2001): 430. http://dx.doi.org/10.1504/ijvd.2001.005216.

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Tang, Ching-Hui, and Ping-Hsuan Hsieh. "A Hybrid Framework for Real-Time Dispatching of Airline Unit Load Devices under Demand Variations." Journal of Advanced Transportation 2022 (August 8, 2022): 1–20. http://dx.doi.org/10.1155/2022/9009364.

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This study is devoted to a new research topic in real-time airline operations, the redispatching of unit load devices (ULDs) under demand variations. We develop a new hybrid framework to solve the problem of ULD redispatch following the time-sequence decision-making required by airlines. The hybrid framework is developed by integrating techniques including the probability distribution technique to simulate different types of operational demand, the adjustable number of stages which is needed to meet the requirements of a decision-making process following a time sequence and the time pressure c

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DOĞAN, Begüm, and Ayla ALTINTEN. "Mathematical Modelling of CO2 with NORSOK M 506." Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 12, no. 1 (2023): 84–92. http://dx.doi.org/10.17798/bitlisfen.1191507.

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The consequences of corrosion is catastrophic also costs reached the global economy “$2.5 trillion, or world GDP’s 3.4%”. Despite the magnitude of the corrosion cost, it can be concluded that scientific studies on corrosion prevention are quite limited, with the exception of high-risk sectors such as aviation and the fuel oil industry. It is important to fight against corrosion in order to ensure the safe operation of oil-carrying pipelines under the sea; and to prevent accidents and environmental damage. As a result of developing industry conditions and increasing needs, modelling corrosion i

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Čarný, Štefan, and Vladislav Zitrický. "Evaluation of the Impact of International Trade Using Regression and Correlation Models." Transport technic and technology 17, no. 1 (2021): 13–20. http://dx.doi.org/10.2478/ttt-2021-0003.

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Abstract The connection of international economies in the world represents an important role for the development of modern economies of countries. This phenomenon is known as globalization. The article describes in more detail the dependence of the Slovak Republic on the economies of East Asia, where mathematical research was performed on macroeconomic indicators of imports and exports. The Slovak Republic is experiencing an increase in GDP for the entire reference period. The growth of economic indicators in the Slovak Republic is ensured mainly due to the strong integration of our economy in

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Rybak, Larisa, Andrey Hurtasenko, Valeria Skitova, and Artem Voloshkin. "Numerical Method of Designing an Automotive Driving Simulator for Training Drivers of Motor Vehicles." E3S Web of Conferences 446 (2023): 06007. http://dx.doi.org/10.1051/e3sconf/202344606007.

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The paper presents the results of numerical simulation and design of an automotive driving simulator for training drivers of motor vehicles, which includes a six-stage dynamic mobility platform and an integrated system of virtual 3D models of real terrain using the software and hardware system “Route”. On the basis of the developed mathematical model of the dynamic platform, optimization of geometric parameters was performed, various configurations of the plat-form were analysed. Optimization was performed using the PSO (Particle Swarm Optimization) heuristic algorithm. A digital twin of the p

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Barrera Hernandez, Javier Esteban, Luis Enrique Tarazona Torres, Alejandra Tabares, and David Álvarez-Martínez. "Optimization of Bus Dispatching in Public Transportation Through a Heuristic Approach Based on Passenger Demand Forecasting." Smart Cities 8, no. 3 (2025): 87. https://doi.org/10.3390/smartcities8030087.

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Accurate and adaptive bus dispatching is vital for medium-sized urban centers, where static schedules often fail to accommodate fluctuating passenger demand. In this work, we propose a dynamic heuristic that integrates machine learning-based demand forecasts into a discrete-time planning horizon, thereby enabling real-time adjustments to dispatch decisions. Additionally, we introduce a tailored mathematical model—grounded in mixed-integer linear programming and space-time flows—that serves as a benchmark to evaluate our heuristic’s performance under the operational constraints typical of tradi

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Rodríguez-Espinosa, Daniel Felipe, Daniela Cruz-Vargas, Daniel Esteban Delgado-Merchán, David Hernando Gonzalez-Estupiñán, and Eliana María González-Neira. "NSGA-II simheuristic to solve a multi-objective flexible flow shop problem under stochastic machine breakdowns." Journal of Project Management 9, no. 4 (2024): 493——512. http://dx.doi.org/10.5267/j.jpm.2024.6.002.

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This study proposes a simheuristic that hybridizes NSGA-II with Monte Carlo simulation to address a stochastic flexible flow shop problem featuring stochastic machine breakdowns. In real-world scenarios, machine breakdowns frequently occur, resulting in negative impacts such as time loss, late deliveries, decreased productivity, and order accumulation. Therefore, this study considers the times between failures and times to repair as stochastic parameters. Multiple objectives are concurrently addressed, including expected makespan, expected tardy jobs, and the standard deviation of tardy jobs.

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Alexandrov, O. I. "SAMPLING OF THE PLAN OF REPAIRS OF THE MAIN EQUIPMENT IN THE ELECTRICAL POWER SYSTEM." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 60, no. 4 (2017): 320–33. http://dx.doi.org/10.21122/1029-7448-2017-60-4-320-333.

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The main aspects of creation of the formal-and-functional mathematical models supporting a system for prompt resolution of repair requires in a complex electric power system are considered in the article. In accordance with the standards of repairs, inspections, replacement of elements of the main equipment or devices of a system of automation, inclusion of spare capacity, various switches, as well as with the frequency of outages adopted in practice, the decisionmaking process is formalized and automated as the problem of scheduling optimal daily schedules of blackouts, functioning as a part

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Helander, Mary, and Russell P. Labe. "Introduction: 2019 Daniel H. Wagner Prize for Excellence in the Practice of Advanced Analytics and Operations Research." INFORMS Journal on Applied Analytics 50, no. 5 (2020): 269–71. http://dx.doi.org/10.1287/inte.2020.1051.

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Competition for the 2019 Daniel H. Wagner Prize for Excellence in the Practice of Advanced Analytics and Operations Research provided the five finalist papers featured in this special issue of the INFORMS Journal on Applied Analytics (IJAA). The prestigious Wagner Prize—awarded for achievement in implemented operations research, management science, and advanced analytics—emphasizes quality and originality of mathematical models and clarity of written and oral exposition. This year’s winning application is a ride-dispatching solution that the Chinese ride service DiDi developed to match ride re

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Matuliauskas, Arvydas, and Bronislovas Spruogis. "PIPELINE ROBOTS WITH ELASTIC ELEMENTS." TRANSPORT 17, no. 5 (2002): 177–81. http://dx.doi.org/10.3846/16483840.2002.10414039.

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In the article constructions of the pipeline robots with elastic elements are reviewed and the scheme of new original construction is presented. The mathematical models of a robot with one-dimensional vibration exciter with two degrees of freedom were developed and the equations of movement were formed and written. The mathematical model of the pipeline robot with circular elements is formed and its motion equations are presented.

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Yassir Ali and Sarah 'Atifah Saruchi. "Comparison of Transfer Function Models to Represent the Correlation Between Vehicle Lateral Acceleration and Head Tilting Angle in Motion Sickness." International Journal of Automotive and Mechanical Engineering 19, no. 4 (2022): 10039–49. http://dx.doi.org/10.15282/ijame.19.4.2022.01.0775.

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Motion Sickness (MS) is described as an unpleasant feeling caused by a forceful movement; hence vehicle movement impacts the severity of MS. While negotiating a curve, drivers and passenger tilt their heads differently, affecting their motion sickness incidence (MSI), which is the severity of MS. MS is a negative feeling, that affects occupant’s comfort, and to further understand the correlation between occupants' behavior and vehicle movement in MS and then represent it using mathematical models, it was proven that MSI could be predicted through mathematical models. However, there is an indef

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Shen, Zhaoqing, Ge Gao, and Zhen Wang. "Accessibility Assessment of Prehospital Emergency Medical Services considering Supply-Demand Differences." Journal of Advanced Transportation 2021 (October 21, 2021): 1–16. http://dx.doi.org/10.1155/2021/1925354.

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The reasonable accessibility assessment method is an important basis for the measurement of the level of prehospital emergency medical services. There is no general model for prehospital emergency care in traditional accessibility evaluation, and its supply-demand characteristics have also been ignored. Based on the three-step floating catchment area (3SFCA) model, the supply-demand three-step floating catchment area (SD3SFCA) model is proposed in this paper, which can express the difference between supply and demand of prehospital emergency medical services and accurately simulate unified dis

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Tarun, Prashant K., and Herbert W. Corley. "Decomposition of Mathematical Programming Models for Aircraft Wing Design Facilitating the Use of Dynamic Programming Approach." American Journal of Operations Research 13, no. 05 (2023): 111–31. http://dx.doi.org/10.4236/ajor.2023.135007.

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Borucka, Anna, Dariusz Mazurkiewicz, and Eliza Łagowska. "MATHEMATICAL MODELLING AS AN ELEMENT OF PLANNING RAIL TRANSPORT STRATEGIES." Transport 36, no. 4 (2021): 354–63. http://dx.doi.org/10.3846/transport.2021.16043.

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Effective planning and optimization of rail transport operations depends on effective and reliable forecasting of demand. The results of transport performance forecasts usually differ from measured values because the mathematical models used are inadequate. In response to this applicative need, we report the results of a study whose goal was to develop, on the basis of historical data, an effective mathematical model of rail passenger transport performance that would allow to make reliable forecasts of future demand for this service. Several models dedicated to this type of empirical data were

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Misrikhanov, M., and Sh Khamidov. "MATHEMATICAL POWER FLOW MODEL IN AN ELECTRICAL SYSTEM CONTAINING A SERIAL COMPENSATOR THRISTOR CONTROLLED REACTIVE COMPONENT." Technical science and innovation 2019, no. 3 (2019): 169–74. http://dx.doi.org/10.51346/tstu-01.19.3-77-0034.

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A unified mathematical model of the power flow in a system containing a reactive component compensator consisting of capacitor banks connected in series to a thyristor control reactor is presented. The application of the FACTS (Flexible Alternative Current Transmission System - Controlled flexible DC power transmission) technology is shown to reduce the gap between the controlled and unmanaged modes of operation of the electric power system (EPS), presenting dispatching personnel with additional degrees of freedom in the management of power flows and voltages in excess and deficit areas of the

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Borozan, Ion, Inocentiu Maniu, Raul Miklos Kulcsar, and Veronica Argesanu. "The Automotive Friction Clutches Face Seal Axial Symmetric Modeling Problem." Applied Mechanics and Materials 162 (March 2012): 67–73. http://dx.doi.org/10.4028/www.scientific.net/amm.162.67.

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An axial clutch is one in which the mating frictional members are moved in a direction parallel to the shaft. One of the earliest of these is the cone clutch, which is simple in construction and quite powerful. However, except for relatively simple installations, it has been largely displaced by the disk clutch employing one or more disks as the operating members. Advantages of the disk clutch include the freedom from centrifugal effects, the large frictional area that can be installed in a small space, the more effective heat-dissipation surfaces, and the favorable pressure distribution. Mode

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Me´ndez-Adriani, J. A. "Dynamic Model for an Automotive Overhead Valve-Gear System." Applied Mechanics Reviews 42, no. 11S (1989): S171—S174. http://dx.doi.org/10.1115/1.3152388.

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This research presents a lumped-parameter model, distinct from the ones developed until the present time, easily adaptable for its analog/hybrid simulation, and that combines favorably its simplicity and precision to represent appropriately an automotive valve gear system by means of the inclusion of the hydraulic lifter and of the viscous forces produced by its guide. The checking of this new mathematical model has been accomplished by means of a qualitative comparison with other models previously devised. This model will be useful in the design stage to predict the speed at which the valve j

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