نتایج جستجو برای: microstructural features

تعداد نتایج: 536869  

Journal: :Journal of magnetic resonance 2011
Peter Basser Carlo Pierpaoli

We provide scientific background information and personal accounts relating to our publication of "Microstructural and Physiological Features of Tissues Elucidated by Quantitative-Diffusion-Tensor MRI" in the Journal of Magnetic Resonance B. This paper provided a framework for measuring and mapping intrinsic features of diffusion anisotropy obtained from diffusion tensor MRI (DTI) data.

2015
Francisco J. Baldenebro-Lopez Cynthia D. Gomez-Esparza Ramon Corral-Higuera Susana P. Arredondo-Rea Manuel J. Pellegrini-Cervantes Jose E. Ledezma-Sillas Roberto Martinez-Sanchez Jose M. Herrera-Ramirez

In this work, the mechanical properties and microstructural features of an AISI 304L stainless steel in two presentations, bulk and fibers, were systematically studied in order to establish the relationship among microstructure, mechanical properties, manufacturing process and effect on sample size. The microstructure was analyzed by XRD, SEM and TEM techniques. The strength, Young's modulus an...

2016
I. Dlouhý V. Kozák L. Válka M. Holzmann Dlouhý

Accepting the Beremin approach to the analysis of cleavage failure criteria the local fracture parameters have been calculated using FEM for Charpy type specimen. Two types, of model fenitic microstructures have been selected for presentation differing by carbide thickness and scatter of fracture toughness data. For the microstructures investigated the Weibull stresses (location parameters) wer...

Journal: :Dental materials journal 1997
A A Sakrana Y Tanaka K Udoh K Hisatsune M Atsuta K Yasuda

In order to determine a coherent phase diagram of the [(AuCu)0.86Ag0.14]1-XPtX pseudobinary system, phase identifications and analyses of the microstructural configurations were performed by means of transmission electron microscopy. Various phase regions were detected in the coherent phase diagram as follows; (1) alpha 0 (fcc) single phase region, (2) two-phase region (alpha 1 + alpha 2), (3) ...

2016
Zhan Shi Xiao-Fei Li Hua Bai Wei-Wei Xu Shui-Yuan Yang Yong Lu Jia-Jia Han Cui-Ping Wang Xing-Jun Liu Wei-Bin Li

In this paper, theoretical calculations were conducted to determine the coefficient of thermal expansion (CTE) based on the effective medium approach using Green's function method. The influences of microstructural features were investigated, including volume fraction, aspect ratio, and the orientation of graphene fillers. Calculated results demonstrated strong anisotropy of CTE when all graphe...

Journal: :Metals 2023

The degradation due to high friction, wear, and corrosion of mechanical components for industrial applications has invoked substantial economic loss. In recent years, scientists engineers have developed techniques mitigate the issues associated with this deterioration potentially. Among these techniques, controlling coefficient friction (COF), wear rate, using laser shock peening (LSP) is a pre...

Journal: :Lecture Notes in Computer Science 2021

We present a detailed description of the structural characteristics MICCAI 2021 Diffusion Simulated Connectivity (DiSCo) Challenge synthetic dataset. The DiSCo dataset are one kind numerical phantoms for simulation diffusion-weighted images (DWIs) via Monte-Carlo diffusion simulations. microscopic and macroscopic complexity substrates allows evaluation processing pipelines estimation quantitati...

2002
Daoming Li Richard P. Gangloff John R. Scully

AerMet 100 is a new generation ultrahigh-strength steel (UHSS) and is currently specified for manufacturing important aircraft parts such as landing gears. As a UHSS, AerMet 100 is susceptible to internal hydrogen embrittlement (IHE) and the mechanisms are complicated due to the trapping H transport interactions, given the fine-scale microstructural features serving as potential trap sites (dis...

Asphalt mixture is heterogeneous in nature; therefore, macroscopic parameters alone cannot describe the mechanical behavior of the mixture. In recent years, the arrangement of the aggregate particles in terms of spatial and directional distributions, and contact points are considered as the internal structure of asphalt. The main purpose of this paper is to investigate the microstructural chara...

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