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Engineering
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Article
3D morphological analysis of Fe-based metallic glass surfaces via laser powder bed fusion using a digital microscope
Surface microscopic characterization of additive manufacturing samples is necessary because of unavoidable defects in the as-printed components. However, the samples are inevitably damaged during characterizat...
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Deformation Behavior of a Large-Scale Excavation and the Effect of an Adjacent Foundation Pit on the Excavation
A large-scale foundation pit with an area of 39,677 m2 (B2) was excavated to the south of an existing 25,720 m2 Chengdu Universal Trade Plaza (CDUTP) foundation pit (B1) in Chengdu, China. The purpose of this man...
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Multi-objective Optimization and Performance Analysis of Dual-Rotor Hub Motor Based on Comprehensive Sensitivity Stratification
To solve the shortcomings of the existing hub motors in the practical application of electric vehicles, an integrated dual-rotor hub motor (DRHM) was proposed, which can realize multiple drive modes to adapt t...
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Mechanical Properties of Polymer Reinforced Concrete at High Strain Rate and Analysis of Its Micro-mechanism
In order to expand the application range of polymer reinforced concrete (PRC) and explore the effect of polymer on the impact resistance of concrete, the dynamic compression test on PRC with polymer content (b...
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Energy finite element model for predicting high frequency dynamic response of taper beams
Taper beams are widely used due to its good dam** properties in vibration and noise control field. For dynamic response analysis of taper beams in the high frequency, the energy finite element analysis (EFEA...
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Fixed-time tracking control for state-constrained nonstrict-feedback systems without feasibility conditions
This paper investigates the fixed-time tracking control for a class of state-constrained nonstrict-feedback nonlinear systems without involving the feasibility conditions. Based on nonlinear map**, a nonline...
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Enhanced wear resistance, antibacterial performance, and biocompatibility using nanotubes containing nano-Ag and bioceramics in vitro
理想的钛基关节植入物应避免力屏蔽, 且具有良好的生物活性和抗感染性能。为满足这些要求, 研究人员以低弹性模量合金Ti–35Nb–2Ta–3Zr为基底, 采用阳极化、沉积和旋涂等方法制备含有生物陶瓷和银离子的功能涂层, 并将其涂覆在TiO2纳米管 ((80 ± 20) nm 和(150 ± 40) nm) 表面。研究了生物陶瓷 (nano-β-TCP, micro-HA, meso-CaSiO3) 和Ag纳米颗粒 ((50...
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Article
An interpretable deep learning framework for genome-informed precision oncology
Cancers result from aberrations in cellular signalling systems, typically resulting from driver somatic genome alterations (SGAs) in individual tumours. Precision oncology requires understanding the cellular s...
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Study of SVPWM control algorithm with voltage balancing based on simplified vector for cascaded H-bridge energy storage converters
DC-side voltage balancing is a critical problem to be solved for cascaded H-bridge energy storage converters. Aiming at inner-phase voltage balancing problem, a space vector pulse width modulation (SVPWM) algo...
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Main sub-harmonic joint resonance of fractional quintic van der Pol-Duffing oscillator
The main sub-harmonic joint resonance of the van der Pol-Duffing system with a quintic oscillator under dual-frequency excitation is investigated in this paper. The study examines the conditions for chaos and ...
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Article
Open AccessA Multi-strategy Improved Grasshopper Optimization Algorithm for Solving Global Optimization and Engineering Problems
This paper presents a multi-strategy improved grasshopper optimization algorithm (MSIGOA), which aims to address the shortcomings of the grasshopper optimization algorithm (GOA), including its slow convergence...
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Data-Driven Insights into the Structural Essence of Plasticity in High-Entropy Alloys
The heterogeneous mechanical response of a crystalline alloy with multiple principal elements was investigated using molecular dynamics simulations. The local configuration of the alloy in its quiescent state ...
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Article
Glass Sponge-inspired Auxetic Mechanical Metamaterials for Energy Absorption
The Auxetic Structure (AS) exhibits significant densification strain due to its concave cell architecture, functioning as an effective energy-absorbing metamaterial. However, its limited plateau stress hampers...
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Numerical Simulation and Experimental Study of the Rotor–Stator Interaction of a Turbine Under Variable Flow Coefficients
Clarifying the gas ingestion mechanism in the turbine disc cavity of marine gas turbines is crucial for ensuring the normal operation of turbines. However, the ingestion is influenced by factors such as the ro...
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Chatter-free tool orientations during five-axis ball-end milling of curved thin-walled parts
Tool orientation is an important factor for improving machining stability in five-axis milling. However, there is still a lack of tool orientation planning strategy that is applied to the milling of curved thi...
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Advanced backtracking search for solving continuous optimization problems
This paper recommends develo** advanced backtracking search (ABS) to use single- and multi-vector mutation strategies to effectively enhance the backtracking search algorithm in solving a variety of optimiza...
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Effect of graphene addition on activation and kinetic properties of La–Mg–Ni-based hydrogen storage alloys
The La1.7Pr0.3Mg16Ni hydrogen storage alloy was prepared by medium-frequency induction melting, and then the composite hydrogen storage alloy powder of La1.7Pr0.3Mg16Ni + x wt.% (x = 0, 2, 4, and 6) graphene was ...
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Correction to: Finite-time prescribed performance control for approaching non-cooperative target’s feature surface
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Mathematical modelling and cutter design for generating chamfering of transversal profile for cylindrical gears
Gear chamfering is a significant machining process to improve the work performance of gear transmission like smoothness, low noise, and endurance. However, manufacturing uniform distributed transversal profile...
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Toward quantum unmanned systems
