273 Result(s)
within
Jia **u Zhang
Engineering
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Article
Correction to: Numerical control machining step error calculation based on hybrid particle swarm optimization method
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Article
Open AccessUncertainty analysis of 137Cs measured by shipborne device for radioactive monitoring
Uncertainty is a crucial indicator of the performance of monitoring devices. Analyzing and calculating uncertainty is a necessary prerequisite for accurately presenting the results of radioactive monitoring fo...
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Application of optimized random forest regressors in predicting the maximum principal stress of aseismic tunnel lining
Using flexible dam** technology to improve tunnel lining structure is an emerging method to resist earthquake disasters, and several methods have been explored to predict mechanical response of tunnel lining...
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New electromagnetic variable flow device for slab continuous casting mold: mechanical design and magnetic field analysis
Obtaining a reasonable mold flow field for casting slabs with different sections is challenging by solely modifying the nozzle structure and continuous casting process. Research was conducted on small-sectione...
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Revealing dislocation activity modes during yielding and uniform deformation of low-temperature tempered steel by acoustic emission
The distinctive distribution of acoustic emission (AE) characteristic parameters generated during tensile testing of low-temperature tempered AISI 4140 steel was investigated. Two clusters of acoustic emission...
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Numerical control machining step error calculation based on hybrid particle swarm optimization method
Step error is the machining error between adjacent cutter location points in the feeding direction. In order to improve the computational efficiency, a hybrid particle swarm optimization method (HPSO) combinin...
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Article
Gibbs Sampling-based Sparse Estimation Method over Underwater Acoustic Channels
The estimation of sparse underwater acoustic (UWA) channels can be regarded as an inference problem involving hidden variables within the Bayesian framework. While the classical sparse Bayesian learning (SBL),...
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Intermittent multivariate time series spindle thermal error prediction under wide environmental temperature ranges and diverse scenario conditions
As the integration of mechanical engineering and deep learning fields becomes increasingly intertwined, the application of experimental thermal error modeling in intelligent manufacturing has gained significan...
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Experimental Prediction of Filtrate Pump’s Critical Cavitation Point Based on Vibration Energy
As front-mounted separators on vacuum systems, filtrate pumps are primarily in charge of gas–liquid separation in vacuum containers. Restricted by net positive suction head (NPSH, ≤ 2 m in most cases) of their...
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Prediction Analysis of Deformation Characteristics During Construction and Operation of Tunnel Anchor Structure System in Soft Rock
As one of the important components of suspension bridge, the main role of tunnel anchor is to transfer the bridge load to the anchor plug, through the anchor plug to the surrounding rock, so as to ensure the s...
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Article
Effects of two silicone resin coatings on performance of FeSiAl magnetic powder cores
Two silicon resins with excellent thermal stability, JH1123 and JH7102, are used as the insulated agents and binders for the gas-atomized FeSiAl powder, and corresponding magnetic powder cores (MPCs) are fabri...
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Complex dynamics of an SIRS epidemic model with non-monotone incidence and saturated cure rate
The study of infectious disease models plays an important theoretical role in the prevention and control of diseases. In this paper, according to the influence of psychological effect and the maximum therapeut...
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Research on theoretical prediction method of rivet-forming quality considering different riveted structure parameters
Rivet connection is one of the most important connection technologies. The main factors affecting the rivet-forming quality of riveted structures are squeezing force, squeezing velocity, and materials of rivet...
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Global dynamics of a polynomial Liénard differential system with arbitrary degree
In this paper, we study the polynomial Liénard differential system of arbitrary degree: $$ \dot{x}=y, \ \dot{y}=a_1x+a_2x^{2\,m}+(a_3+a_4x^{2n...
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Open AccessA hybrid Eulerian–Lagrangian approach for non-self-similar expansion analysis of a cylindrical cavity in saturated and unsaturated critical state soils
This paper proposes a powerful hybrid Eulerian–Lagrangian (HEL) approach for the analysis of cavity expansion problems. The new approach is applied to analysing the non-self-similar expansion process of a holl...
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Reconfigurable fault-tolerant attitude tracking for spacecraft with unknown nonlinear dynamics using neural network estimators with learning-type weight updating
This study investigated the problem of robust and reconfigurable attitude-tracking control with fault-tolerant capability for spacecraft under nonlinear inertia uncertainties, disturbance torques, and actuator...
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Microstructure, Texture, and Mechanical Properties of Mg-Gd-Y-Zr Alloy Prepared by Rotating Backward Extrusion Process
A cup-shaped Mg-Gd-Y-Zr alloy component has been successfully prepared by using the severe plastic deformation (SPD) technique of rotating backward extrusion (RBE), and the microstructure evolution and mechani...
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Improving data-efficiency of deep generative model for fast design synthesis
The convolutional neural network-based deep generative model (DGM) is a powerful tool for handling image datasets that opens up strategies for fast synthesis of optimum designs at unseen boundary conditions. E...
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Positive Real Lemmas for Fractional-Order Two-Dimensional Roesser Model: The \(0< \rho _1\le 1,0<\rho _2\le 1\) Case
This paper investigates the positive realness of continuous fractional-order (FO) two-dimensional (2D) Roesser model with the FO $$\rho _1\in ...
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Open AccessVacuum-ultraviolet (λ < 200 nm) photodetector array
The vacuum-ultraviolet (VUV, 10–200 nm) imaging photodetector (PD) based on the wide bandgap semiconductor (WBGS) can realize a more detailed observation of solar storms than the silicon ones. Here, an 8 × 8 V...
