Results 61 to 70 of about 137,710 (216)

Geometrical Structure Classification of Target HRRP Scattering Centers Based on Dual Polarimetric $H/\alpha$ Features

IEEE Access, 2019
Polarimetric high resolution range profile (HRRP) contains the geometrical structural information along radar line-of-sight and has shown great potentials in target recognition. In existing researches, H/α decomposition has been applied to exploit
Teng Long, Liang Zhang, Yang Li, Yanhua Wang   +3 more
doaj   +1 more source

Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy

Advanced Engineering Materials, EarlyView.
An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa, Jeverton L. Paixão, Daylla S. Silva, Bruno S. Sobral, Mucio D. de Medeiros, José E. Spinelli, Bismarck L. Silva   +6 more
wiley   +1 more source

A New Multi-Channel Triangular FMCW LADAR Signals Denoising Method Based on Improved SMVMD

Remote Sensing
Due to the short coherent integration time and other issues, the echo signal is seriously contaminated by noise, which reduces the target recognition accuracy of frequency modulation continuous wave (FMCW) laser radar (LADAR) in three-dimensional imaging.
Wei Li, Qinghai Dong, Bingnan Wang, Maosheng Xiang   +3 more
doaj   +1 more source

An eye and neck coordination strategy based on Jacobi matrix

MATEC Web of Conferences, 2018
In order to research the effect of eye and neck rotational velocity on tracking accuracy in the process of target tracking of humanoid vision system, an optimal method of angle decomposition was be proposed based on the Jacobi matrix.
Fan Fan, Wu Han, Dong Mingli
doaj   +1 more source

The Effect of Topography on Target Decomposition of Polarimetric SAR Data

Remote Sensing, 2015
Polarimetric target decomposition enables the interpretation of radar images more easily, mostly based on physical assumptions, i.e., fitting physically-based scattering models to the polarimetric SAR observations.
Sang-Eun Park
doaj   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

An Adaptive Polarimetric Target Decomposition Algorithm Based on the Anisotropic Degree

Remote Sensing
Polarimetric target decomposition algorithms have played an important role in extracting the scattering characteristics of buildings, crops, and other fields.
Pingping Huang, Baoyu Li, Xiujuan Li, Weixian Tan, Wei Xu, Yuejuan Chen   +5 more
doaj   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

Advanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt, J. Hahn, J. Kimm, S. Weber, J. Lentz   +4 more
wiley   +1 more source

SSDFL: Spatial scattering decomposition feature learning for PolSAR image

International Journal of Applied Earth Observations and Geoinformation
In PolSAR image, the presence of speckle brings significant fluctuations in the information of adjacent pixels. However, most target decomposition (TD) methods only focus on a single pixel then ignore spatial scattering information of neighborhood pixels,
Chen Yang, Biao Hou, Bo Ren, Xu Liu, Jocelyn Chanussot, Shuang Wang, Licheng Jiao   +6 more
doaj   +1 more source