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Control of crystallographic orientation by metal additive manufacturing process of β-type Ti alloys based on the bone tissue anisotropy [PDF]

open access: yesMATEC Web of Conferences, 2020
Variation in the scanning strategy for β-type Ti alloys during additive manufacturing (AM) enables the fabrication of a singlecrystal-like microstructure possessing a crystallographic texture, in which the low-Young’s modulus- direction is aligned along ...
Nakano Takayoshi   +5 more
doaj   +1 more source

不同散射模式下S波包络合成

open access: yesDizhen xuebao, 2021
为揭示地震波在地壳小尺度非均匀介质中的散射过程,更准确地描述地震波的包络展宽现象,本文基于多次各向异性散射理论,采用离散波数法求解能量密度积分方程,选取高斯型自相关函数表征的散射模式,得到S波能量密度包络。基于此,本文首先分析了单次散射和多次散射在形成S波能量密度包络中的贡献规律;然后探讨了吸收系数和总散射系数对合成S波能量密度包络的影响;最后对比了在不同散射模式下合成的S波能量密度包络的差异。结果显示:① 不同的散射模式下单次散射和多次散射对地震波散射过程的贡献规律是一致的,对于近震(震源距小于100
Yueling Jing   +4 more
doaj   +1 more source

Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Here we studied Bianchi type-I cosmological models with massive strings in general relativity in five dimensional space time. Out of the two different cases obtained here, one case leads to a five dimensional Bianchi type-I string cosmological model in ...
Kangujam Priyokumar Singh   +4 more
doaj   +1 more source

Evaluation of the Efficiency of Detection and Capture of Manganese in Aqueous Solutions of FeCeOx Nanocomposites Doped with Nb2O5

open access: yesSensors, 2020
: The main purpose of this work is to study the effectiveness of using FeCeOx nanocomposites doped with Nb2O5 for the purification of aqueous solutions from manganese.
Artem Kozlovskiy   +7 more
doaj   +1 more source

Design of concrete beam reinforced with GFRP bars as per ACI codal provisions [PDF]

open access: yesE3S Web of Conferences, 2023
This document provides design principles for concrete beams reinforced with glass fiber reinforced polymer (GFRP) bars per the ACI 440.1R-15 regulation. One of the main advantages of using glass fiber reinforced polymer rods instead of traditional steel ...
Reddy R. Venkata Suraj   +5 more
doaj   +1 more source

A NumericalInvestigation for a Class of Transient-State Variable Coefficient DCR Equations

open access: yesMathematics, 2023
In this paper, a combined Laplace transform (LT) and boundary element method (BEM) is used to find numerical solutions to problems of anisotropic functionally graded media that are governed by the transient diffusion–convection–reaction equation.
Mohammad Ivan Azis
doaj   +1 more source

Effect of scanning strategy on texture formation in Ni-25 at.%Mo alloys fabricated by selective laser melting

open access: yesMaterials & Design, 2018
Variations in the crystallographic texture in Ni-25 at.%Mo alloys fabricated by selective laser melting with different scanning strategies were designed for the first time.
Shi-Hai Sun   +2 more
doaj   +1 more source

A Tropospheric Tomography Method with a Novel Height Factor Model Including Two Parts: Isotropic and Anisotropic Height Factors

open access: yesRemote Sensing, 2020
Global Navigation Satellite System (GNSS) tomography has developed into an efficient tool for sensing the high spatiotemporal variability of atmospheric water vapor.
Wenyuan Zhang   +3 more
doaj   +1 more source

The evolution of time-dependent Λ and G in multi-fluid Bianchi type-I cosmological models

open access: yesOpen Astronomy, 2022
In this work, cosmological solutions based on the time-dependent cosmological (Λ\Lambda ) and Newtonian (GG) running “constants” in the Bianchi type-I spacetime are investigated vis-à-vis known cosmological data. The observationally known values of Ωm,Ωr{
Alfedeel Alnadhief H. A., Abebe Amare
doaj   +1 more source

Bianchi type–I Model with Time Varying Λ and G: The Generalized Solution

open access: yesOpen Astronomy, 2020
In this paper, we have investigated the homogeneous and anisotropic Bianchi type–I cosmological model with a time-varying Newtonian and cosmological constant.
Alfedeel Alnadhief H. A.
doaj   +1 more source

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