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Production of Micron-Sized Particles of Bauxite by Circulating Pulverization Experiment

open access: yesAdvances in Materials Science and Engineering, 2022
A novel process involving the production of micron-sized particles of bauxite by circulating pulverization experiment is proposed. This method is through high-pressure gas infiltration, uniform and equal stress loading, and overcoming tensile strength ...
Fan Yongbo   +6 more
doaj   +1 more source

Carbon nanotube sponges filled sandwich panels with superior high-power continuous wave laser resistance

open access: yesScientific Reports, 2022
Effect of highly-porous and lightweight carbon nanotube sponges on the high-power continuous wave laser ablation resistance of the sandwich panel was investigated experimentally.
Wu Yuan   +6 more
doaj   +1 more source

A machine learning model for predicting the ballistic impact resistance of unidirectional fiber-reinforced composite plate

open access: yesScientific Reports, 2021
It has been a vital issue to ensure both the accuracy and efficiency of computational models for analyzing the ballistic impact response of fiber-reinforced composite plates (FRCP). In this paper, a machine learning (ML) model is established in an effort
X. D. Lei   +5 more
doaj   +1 more source

Aerodynamic-Aeroacoustic Optimization of a Baseline Wing and Flap Configuration

open access: yesApplied Sciences, 2022
Optimization design was widely used in the high-lift device design process, and the aeroacoustic reduction characteristic is an important objective of the optimization.
Shengjun Ju   +5 more
doaj   +1 more source

Robust optimisation of the streamlined shape of a high-speed train in crosswind conditions

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Traditional deterministic aerodynamic optimisation cannot consider environmental uncertainty, which may lead to sensitivity issues. The present study proposes a robust design framework for the aerodynamic optimisation of high-speed trains, which accounts
Yeteng Wang   +4 more
doaj   +1 more source

Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re = 3 × 106

open access: yesApplied Sciences, 2022
One of the most common systems in engineering problems is the multi-column system in the form of an equilateral-triangular arrangement. This study used three-dimensional numerical simulations to investigate the flow around three cylinders in this ...
Mohan Zhang   +4 more
doaj   +1 more source

Spatiotemporal Characteristics and Habitat Quality Analysis in the Temperate Desert Sub-Region of Ordos Plateau, China

open access: yesLand, 2023
Habitat quality has great significance in terms of regional ecological conservation and human welfare. In this study, we evaluated the spatial and temporal characteristics of land use and habitat quality in the temperate desert sub-region of the Ordos ...
Min Pei   +10 more
doaj   +1 more source

On-line microscopic imaging investigation on oil charging characteristics in tight reservoirs

open access: yesShiyou shiyan dizhi, 2023
The reservoir space of tight reservoir with low-permeability is controlled by micro and nano scale pores, making the influence of capillary force significantly enhanced.
Wenbin JIANG   +8 more
doaj   +1 more source

Assessment of Spatial–Temporal Variations of Soil Erosion in Hulunbuir Plateau from 2000 to 2050

open access: yesLand, 2023
The study area was the Hulunbuir Plateau in northeastern China, based on a natural resource element observation study. The assessment of the spatial and temporal variation of soil erosion is crucial for implementing environmental management in the ...
Jianglong Yuan   +7 more
doaj   +1 more source

Numerical Modeling of Drag Reduction by Bionic Microstructures on High-speed Trains [PDF]

open access: yesJournal of Applied Fluid Mechanics
With the continuous increase in the operating speed of high-speed trains, aerodynamic performance plays an increasingly critical role in energy consumption, operational stability, and passenger comfort.
S. Ren   +6 more
doaj   +1 more source

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