Emergency Response Resource Allocation in Sparse Network Using Improved Particle Swarm Optimization

Zhang, Yongqiang; Hu, Zhuang; Zhang, Min; Ba, Wenting; Wang, Ying

doi:10.3390/ijerph191610295

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…The heuristic optimization algorithm is widely used to solve problems in complex engineering projects [29][30][31][32][33][34], which can effectively solve nonlinear, multi-objective or multidecision variable optimization problems. The case of optimization design in the paper has many variables to be optimized (a total of 11 variables to be optimized), and the calculation model of the objective function is complicated (i.e., it's required to calculate the speed regulating characteristics in different working conditions of HMCVT for each individual in each iteration process of algorithm and consider the service time weight and efficiency of each HM stage in the whole life cycle of the tractor), so the research in the paper adopts the I-GA for the optimization design of transmission parameters.…”

Section: The New Hmcvt Optimization Design Methodsmentioning

confidence: 99%

Research on HMCVT Parameter Design Optimization Based on the Service Characteristics of Agricultural Machinery in the Whole Life Cycle

Cheng

2023

Machines

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The HMCVT (Hydro-mechanical Continuously Variable Transmission) can realize continuously variable speed in a large range and transmit high power through power diving, and thus, it is widely applied in agricultural machineries, such as tractors. The engineering technology requirements of precision agriculture and intelligent agriculture have put forward higher requests for the research and development of HMCVT. In order to further improve the performance of HMCVT in the design stage and match the service characteristics of agricultural tractors in the whole life cycle, this paper proposes a new HMCVT optimization design method which mainly consists of 5 steps. The proposed method takes the regular and continuous transmission ratio variation, matching the working requirements in the whole life cycle of agricultural tractors and transmission efficiency maximization as comprehensive objectives. The improved genetic algorithm (I-GA) is applied. The HMCVT efficiency characteristic model combines the characteristic efficiency model of the hydraulic system, which has been verified, and the theoretical calculation model based on the engaging power method. By analyzing the statistical data of the tractor speed operating frequency in the whole life cycle, the proposed method is used to determine the weight of each hydro-mechanical power dividing stage (i.e., HM stage) service time. In the design process, the HMCVT efficiency is integrated with the displacement ratio so as to realize the evaluation of the maximum efficiency in the whole life cycle of the tractor. Research results show that the proposed method can improve HMCVT performance significantly, and the mean error between speed regulating characteristics and expected value in design is 1.04% or so. The HMCVT service efficiency in the whole life cycle of the tractor has been improved by 19.93%. The research in the paper offers a valuable reference for getting the law of HMCVT characteristics and performance improvement design of tractors.

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Section: The New Hmcvt Optimization Design Methodsmentioning

confidence: 99%

Research on HMCVT Parameter Design Optimization Based on the Service Characteristics of Agricultural Machinery in the Whole Life Cycle

Cheng

2023

Machines

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“…Some research can be found in railway [19] and air traffic management [20] fields. The related areas in road traffic management are, for example, the allocation of human resources in sustainable traffic management to obtain a day-to-day manpower allocation schedule [21], emergency response resource allocation [22], and the mathematical model for efficiency optimization by determining the best number of employees for an logistics task [23]. Those studies have a common point; the right number of employees affects the effectiveness of a system.…”

Section: Introductionmentioning

confidence: 99%

Towards Optimal TMS Integration Scenario Based on HRM and SWOT Analysis

2023

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To meet the collective goal of providing an efficient, sustainable, and safe transportation system, motorway managers are oriented toward establishing an optimal traffic management system (TMS). However, there are no straightforward guidelines through which to deploy the optimal integration scenario for traffic control centers (TCCs). An important component of TMSs is traffic control decisions, implying that human resources represent a critical feature of a TMS. In this study, we introduce human resource management (HRM) into the process of selecting the most appropriate integration scenario, which is achieved by developing a model to determine the number of employees. We formulated the problem as the mixed integer nonlinear programming problem based on the analysis of traffic incidents and road infrastructure data, considering also the employee voice and some HRM specificities in incident situations. Combining these findings with a SWOT analysis of the possible integration scenarios in Slovenia, we propose the most suitable scenario, in which TMS is organized as a cloud service. Moreover, this study predicts TCCs’ space requirements and identifies threats of neglecting HRM in TMS design. This paper can serve as a guideline and a baseline of expertise for motorway managers to create an effective and sustainable TMS in their region.

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Multi-objective Harris Hawks Optimization for Optimal Emergency Vehicle Dispatching During a Pandemic

Khennak¹,

Drias²,

Khelfa³

et al. 2023

Lecture Notes in Networks and Systems

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Emergency Response Resource Allocation in Sparse Network Using Improved Particle Swarm Optimization

Cited by 5 publications

References 32 publications

Research on HMCVT Parameter Design Optimization Based on the Service Characteristics of Agricultural Machinery in the Whole Life Cycle

Research on HMCVT Parameter Design Optimization Based on the Service Characteristics of Agricultural Machinery in the Whole Life Cycle

Towards Optimal TMS Integration Scenario Based on HRM and SWOT Analysis

Multi-objective Harris Hawks Optimization for Optimal Emergency Vehicle Dispatching During a Pandemic

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