Results 31 to 40 of about 88,738 (266)

High Accuracy Scattering Center Modeling Based on PO and PTD [PDF]

Radioengineering, 2018
Based on the solutions of physical optics (PO) and physical optics of diffraction (PTD), we propose a modified parametric scattering center model for high precise signal simulations of extended targets.
X.-T. Zhao, K.-Y. Guo, X.-Q. Sheng
doaj  

Frequency-dependent Factor Expression of the GTD Scattering Center Model for the Arbitrary Multiple Scattering Mechanism

Leida xuebao, 2021
This paper presents a derivation of a formula with a concise and uniform analytic form by the Stationary Phase Method (SPM) plus Geometrical Optics (GO), the Physical Theory of Diffraction (PTD), and Geometrical Theory of Diffraction (GTD) to calculate ...
Hua YAN, Lei ZHANG, Jinwen LU, Xiaoyu XING, Sheng LI, Hongcheng YIN   +5 more
doaj   +1 more source

Spectral modification by diffraction and scattering [PDF]

SPIE Proceedings, 2009
Different effects induce spectral changes, for example, correlation of source fluctuations, propagation of light, random changes in optical properties of a medium, diffraction and scattering from objects, and rough interfaces. We review the spectral changes that occur as a result of light diffraction from phase steps, and particularly we discuss the ...
M. Taghi Tavassoly, Masoomeh Dashtdar, Mohammad Amiri   +2 more
openaire   +1 more source

Refining short-range order parameters from the three-dimensional diffuse scattering in single-crystal electron diffraction data

IUCrJ
Our study compares short-range order parameters refined from the diffuse scattering in single-crystal X-ray and single-crystal electron diffraction data. Nb0.84CoSb was chosen as a reference material.
Romy Poppe, Nikolaj Roth, Reinhard B. Neder, Lukas Palatinus, Bo Brummerstedt Iversen, Joke Hadermann   +5 more
doaj   +1 more source

Four-dimensional imaging of lattice dynamics using ab-initio simulation

npj Computational Materials, 2021
Time-resolved mapping of lattice dynamics in real- and momentum-space is essential to better understand several ubiquitous phenomena such as heat transport, displacive phase transition, thermal conductivity, and many more.
Navdeep Rana, Aditya Prasad Roy, Dipanshu Bansal, Gopal Dixit   +3 more
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Exploring the functional properties and utilisation potential of mollusca shell by-products through an interdisciplinary approach

Scientific Reports
Molluscan shellfish aquaculture contributes to 42.6% of global aquaculture production. With a continued increase in shellfish production, disposal of shell waste during processing is emerging as an environmental and financial concern.
Wing H. Chung, Nicholas Sheng Loong Tan, Manjin Kim, Thunyaluk Pojtanabuntoeng, Janet Howieson   +4 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Local structure of amorphous sulfur in carbon–sulfur composites for all-solid-state lithium-sulfur batteries

Communications Chemistry
All-solid-state (ASS) batteries are a promising solution to achieve carbon neutrality. ASS lithium–sulfur (Li-S) batteries stand out due to their improved safety, achieved by replacing organic solvents, which are prone to leakage and fire, with solid ...
Hiroshi Yamaguchi, Yu Ishihara, Yamato Haniu, Atsushi Sakuda, Akitoshi Hayashi, Kentaro Kobayashi, Satoshi Hiroi, Hiroki Yamada, Jo-chi Tseng, Seiya Shimono, Koji Ohara   +10 more
doaj   +1 more source

New Approaches and Possibilities of a Dynamical Diffractometry of Imperfections of Multiparameter Systems

Успехи физики металлов, 2014
This review deals with discussions of findings of authors, the previously unknown phenomenon of amplification of manifestation of defects in statistical pattern of multiple scattering by several orders of magnitude as well as possibilities of using this ...
V. V. Lizunov, V. B. Molodkin, S. V. Lizunova, N. G. Tolmachev, O. S. Skakunova, S. V. Dmitriev, B. V. Sheludchenko, S. M. Brovchuk, L. M. Skapa, R. V. Lekhnyak, V. V. Molodkin, K. V. Fuzik
doaj   +1 more source