Results 51 to 60 of about 5,165,159 (345)

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

Zoning of the city of Shelekhov, Irkutsk agglomeration, based on the assessment of acoustic pollution

open access: yesRUDN Journal of Ecology and Life Safety, 2023
The study carried out the zoning of the city of Shelekhov, based on the assessment of acoustic pollution of the territory. Field observations were made and the number of vehicles moving along intracity roads and the federal highway R-258 “Baikal” was ...
Svetlana A. Novikova
doaj   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

open access: yesAdvanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi   +3 more
wiley   +1 more source

Study on structure optimization of supersonic aerodynamic spray device and synergistic control effect of dust and noise

open access: yesMeitan xuebao
Supersonic coaxial air spray dust removal technology is good in the treatment of respirable dust. It has the advantages of high spray concentration, small droplet size and fast movement speed, but it will bring serious noise pollution, especially high ...
Tian ZHANG   +6 more
doaj   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

Numerical simulation study on ultrasonic unplugging of coal fines plugging screen tube

open access: yesMeikuang Anquan
Aiming at the problem of coal fines plugging in the screen tube of coalbed methane wells, a two-dimensional and three-dimensional simulation models of the screen tube for coalbed methane wells were built with the help of COMSOL finite element simulation ...
Jinwei REN   +6 more
doaj   +1 more source

Experimental Determination of Sound Transmission Loss Indices of a Rectangular Plate with Energy-Absorbing Coating [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
This paper presents the results of experimental determination of sound transmission loss indices of a rectangular plate with energy-absorbing coating, which were obtained in the reverberation acoustic laboratory and intended to verify the data of ...
V.N. Paimushin   +2 more
doaj  

SPH Simulation of Acoustic Waves: Effects of Frequency, Sound Pressure, and Particle Spacing

open access: yes, 2015
Acoustic problems consisting of multiphase systems or with deformable boundaries are difficult to describe using mesh-based methods, while the meshfree, Lagrangian smoothed particle hydrodynamics (SPH) method can handle such complicated problems. In this
Yongou Zhang   +3 more
semanticscholar   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Reduction of Hydrodynamic Noise of 3D Hydrofoil with Spanwise Microgrooved Surfaces Inspired by Sharkskin

open access: yesJournal of Marine Science and Engineering, 2019
Loud hydrodynamic noise is not only potentially harmful to the health of organisms in the ocean, but it is also a threat to the survival of underwater vehicles.
Zhigao Dang, Zhaoyong Mao, Wenlong Tian
doaj   +1 more source

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