Results 1 to 10 of about 113,373 (284)

Strength Enhancement in Fused Filament Fabrication via the Isotropy Toolpath

open access: yesApplied Sciences (Switzerland), 2021
The fused filament fabrication (FFF) process deposits thermoplastic material in a layer-by-layer manner, expanding the design space and manufacturing capability compared with traditional manufacturing.
Xinyi Xiao
exaly   +4 more sources

Mechanical Characterization of Anhydrous Microporous Aluminophosphate Materials: Tridimensional Incompressibility, Ductility, Isotropy and Negative Linear Compressibility

open access: yesSolids, 2022
Here, a detailed mechanical characterization of five important anhydrous microporous aluminophosphate materials (VPI-5, ALPO-8, ALPO-5, ALPO-18, and ALPO-31) is performed using first principles methods based on periodic density functional theory.
Francisco Colmenero   +2 more
doaj   +1 more source

A fractionally loaded boundary value problem two-dimensional in the spatial variable

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
In the paper, the boundary value problem for the loaded heat equation is solved, and the loaded term is represented as the Riemann-Liouville derivative with respect to the time variable. The domain of the unknown function is the cone.
M.T. Kosmakova   +2 more
doaj   +1 more source

Deduction of Electric Field Module in a Multilayer of Isotropic Materials to Detect Surface Plasmons with a Graphical User Interface

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021
Electric field module for any isotropic multilayer thin film structure, is presented as analytical deduction. Analytic expressions for the electric field distribution are developed initially for a monolayer isotropic system based on Airy's formulae and ...
B. Garibello, Y. Martín
doaj   +1 more source

Wave Propagation in Periodic Metallic Structures with Equilateral Triangular Holes

open access: yesApplied Sciences, 2020
This paper studies wave propagation in a periodic parallel-plate waveguide with equilateral triangular holes. A mode-matching method is implemented to analyze the dispersion diagram of the structure possessing glide and mirror symmetries. Both structures
Antonio Alex-Amor   +6 more
doaj   +1 more source

Diffuseness quantification in an acoustic test chamber using the isotropy derived by the angular spectrum of sound waves based on the spherical harmonics expansion

open access: yesMechanical Engineering Journal, 2023
Spacecraft are exposed to acoustic loads during flights to space by launch vehicles. The endurance of spacecraft structure is verified by a ground acoustic test specified in test standard documents of the aerospace community.
Daichi TODAKA   +4 more
doaj   +1 more source

Emergence of Minkowski Spacetime by Simple Deterministic Graph Rewriting

open access: yesUniverse, 2022
The causal set program and the Wolfram physics project leave open the problem of how a graph that is a (3+1)-dimensional Minkowski spacetime according to its simple geodesic distances could be generated solely from simple deterministic rules.
Gabriel Leuenberger
doaj   +1 more source

Heat Capacity of Decagonal and Icosahedral Quasicrystalline Phases at High Temperatures

open access: yesФізика і хімія твердого тіла, 2020
The paper deals with the calculations of heat capacity of quasicrystalline decagonal Al69Co21Ni10 and icosahedral Al63Cu25Fe12 quasicrystalline phases of Al–Co–Ni and Al–Cu–Fe alloys, respectively.
Yu. V. Syrovatko, O. O. Levkovich
doaj   +1 more source

Mechanical property of octahedron Ti6Al4V fabricated by selective laser melting

open access: yesReviews on Advanced Materials Science, 2021
The stress shielding effect is a critical issue for implanted prosthesis due to the difference in elastic modulus between the implanted material and the human bone.
Zhai Yun, He Sibo, Lei Lei, Guan Tianmin
doaj   +1 more source

Study on the Performances of an Approximating Spline Filter Based on the ADRF Function in Surface Roughness Evaluation

open access: yesApplied Sciences, 2021
Isotropy is an important feature of an area filter in the three-dimensional surface roughness evaluation. First, the transmission characteristic deviation between the approximating spline filter and the Gaussian filter is reduced by cascading ...
Baofeng He   +3 more
doaj   +1 more source

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