Results 51 to 60 of about 1,458 (182)
ABSTRACT Objective To investigate the associations between peri‐implant phenotype characteristics and long‐term outcomes of soft tissue–level implants. Methods Twenty‐five tissue‐level implants from a previous controlled clinical trial were evaluated at 1‐ and 5‐year follow‐ups after crown delivery.
Hamoun Sabri +6 more
wiley +1 more source
Radar micro-Doppler for loudspeaker analysis: an industrial process application [PDF]
In the last decades a strong interest has developed on radar micro-Doppler analysis targeting applications in a number of sectors including defence, bio-medical and automotive. This paper investigates for the first time the use of radar micro- Doppler for loudspeaker analysis.
Izzo, A. +3 more
openaire +2 more sources
Semisupervised Human Activity Recognition With Radar Micro-Doppler Signatures
Human activity recognition (HAR) plays a vital role in many applications, such as surveillance, in-home monitoring, and health care. Portable radar sensor has been increasingly used in HAR systems in combination with deep learning (DL). However, it is both difficult and time-consuming to obtain a large-scale radar dataset with reliable labels ...
Xinyu Li 0007 +3 more
openaire +4 more sources
Micro-Doppler Effect of Extended Streamlined Targets Based on Sliding Scattering Centre Model [PDF]
The scattering center of extended streamlined targets can slide when the direction of radiation is changed. The sliding scattering center has influence on the micro-Doppler effect of micro-motion of the extended streamlined target.
Bo Tang
doaj
Decomposition of Multicomponent Micro-Doppler Signals Based on HHT-AMD
Micro-Doppler signals analysis has been emerging as an important topic in target identification, and relative research has been focusing on features extraction and separation of the radar signals.
Wenchao Li, Gangyao Kuang, Boli Xiong
doaj +1 more source
A High‐Precision Crop Water Footprint Quantification Framework Based on Data Assimilation
Abstract Agricultural production is a major consumer of water resources, and the crop water footprint (CWF) serves as a comprehensive metric for assessing agricultural water use efficiency and its associated impacts, thereby providing new insights for agricultural water management.
Ting Bai +8 more
wiley +1 more source
Radar micro-Doppler feature extraction using the spectrogram and the cepstrogram [PDF]
The radar micro-Doppler signature of a target is determined by parts of the target moving or rotating in addition to the main body motion. The relative motion of parts is characteristic for different classes of targets, e.g. the flapping motion of a bird's wings vs. the spinning of propeller blades.
Harmanny, R.I.A. +2 more
openaire +2 more sources
Aerosol‐Cloud Interactions: Overcoming a Barrier to Projecting Near‐Term Climate Evolution and Risk
Abstract Aerosol‐cloud interactions (ACI) are a major source of uncertainty in climate science, critically affecting our ability to project near‐term climate evolution and assess societal risks. These interactions influence effective radiative forcing, cloud dynamics, and precipitation patterns, yet remain insufficiently constrained due to limitations ...
Ulas Im +40 more
wiley +1 more source
A Doppler aliasing free micro-motion parameter estimation method in the terahertz band
Micro-Doppler, induced by micro-motion of targets, is an important characteristic for target recognition once extracted via parameter estimation. However, micro-Doppler is usually too significant to result in aliasing in the terahertz band.
Qi Yang +3 more
doaj +1 more source
Abstract This study is one of the first attempts to estimate statistically the real height of SuperDARN F region echoes in the polar cap. To achieve this, measurements of the electron density in the scattering volume of the Rankin Inlet SuperDARN radar are compared with the electron density profiles measured by the incoherent scatter radar RISR‐C ...
Alexander V. Koustov +3 more
wiley +1 more source

