Existence of multiple positive solutions for a class of infinite-point singular p-Laplacian fractional differential equation with singular source terms

Based on properties of Green’s function and by Avery–Peterson fixed point theorem, the existence of multiple positive solutions are obtained for singular p-Laplacian fractional differential equation with infinite-point boundary conditions, and an example is given to demonstrate the validity of our main results

Multi-Objective Optimization of HEV Fuel Economy and Emissions using Evolutionary Computation

The Hybrid Electric Vehicle (HEV) consists of at least two sets of energy output systems, the fuel converter (engine or fuel cell) and the energy storage system (battery stack). How to match various components and manage the energy distribution becomes critical for HEV design and control. It is an optimization issue. Much work has been done in this field but a significant portion optimizes the component sizes and control strategy parameters separately. Moreover, most work concerns single objective optimization although more than one objective is more common and natural in HEV optimization. This paper uses an advanced soft computing technique, Non-dominated Sorting Genetic Algorithm (NSGA-II), one of the most efficient Multi

VampNet-based BTT vibration reconstruction

Blade tip-timing (BTT) vibration measurement is seriously under-sampled due to few BTT probes, so it often needs to reconstruct true blade vibration characteristics. In practice, the characteristic of sparsity makes compressed sensing be useful for under-sampled BTT vibration reconstruction. Most existing algorithms still depend on prior sparse information. In recent years, deep learning methods have been investigated to deal with compressed sensing (CS) without prior information. However, traditional deep neural network architectures need many layers for accuracy, leading to more complexity. In order to cope with it, iterative reconstruction algorithms have been recently studied to modify traditional neural-network architectures. Thus, this paper proposes a VampNet-based BTT vibration reconstruction method by using the approximate message passing algorithm. Firstly, the angular-domain CS model of BTT vibration measurement is built. Based on it, the VampNet model of BTT vibration reconstruction is derived. Next, Matlab/Simulink simulations are done to generate BTT samples under variable speeds and then validate the reconstruction accuracy. The simulation results demonstrate that the proposed method can carry out BTT vibration reconstruction faster than existing deep learning methods

The prediction of the methane production in landfill affected by the temperature

The functional relationship between the generation rate coefficient and temperature was developed for quantitative prediction of the temperature effect in this paper. The methane production of the landfill was predicted under the condition of the seasonal variation. The results showed that considering the temperature effect, the methane production is higher than the methane production without temperature effect of the 0.14×106 m3~0.28×106m3.With the depth increasing, the effect of the atmospheric temperature fluctuation on the temperature change of the landfill was weakened. The temperature has a significant effect on the methane production in the landfill. The temperature effect should be considered when simulate the long time effect of the landfill methane production

The maintenance and management system of Zhoushan Trans-sea Bridge

The maintenance management system with respect to Zhoushan Trans-sea Bridge is detailed introduced in this paper. The management system is mainly made up of two parts: Structure Health Monitoring System and Electronic Manual Inspection System. For Structure Health Monitoring System, the components, the service condition, and the evaluation are detailedly discussed. For Electronic Manual Inspection System, the main contents of the inspection management manual and the components of ScanPrint system are briefly introduced

The prediction of the methane production in landfill affected by the temperature

The functional relationship between the generation rate coefficient and temperature was developed for quantitative prediction of the temperature effect in this paper. The methane production of the landfill was predicted under the condition of the seasonal variation. The results showed that considering the temperature effect, the methane production is higher than the methane production without temperature effect of the 0.14×106 m3~0.28×106m3.With the depth increasing, the effect of the atmospheric temperature fluctuation on the temperature change of the landfill was weakened. The temperature has a significant effect on the methane production in the landfill. The temperature effect should be considered when simulate the long time effect of the landfill methane production

The maintenance and management system of Zhoushan Trans-sea Bridge

The maintenance management system with respect to Zhoushan Trans-sea Bridge is detailed introduced in this paper. The management system is mainly made up of two parts: Structure Health Monitoring System and Electronic Manual Inspection System. For Structure Health Monitoring System, the components, the service condition, and the evaluation are detailedly discussed. For Electronic Manual Inspection System, the main contents of the inspection management manual and the components of ScanPrint system are briefly introduced