Results 101 to 110 of about 1,458,515 (251)

A Micro-Doppler Modulation of Spin Projectile on CW Radar

open access: yesITM Web of Conferences, 2017
To obtain the spin speed of projectile effectively, a micro-Doppler modulation model of rotating projectile measured by continuous-wave radar (CW radar) is introduced.
Liu Zhi-Xue
doaj   +1 more source

Sonar micro-Doppler effect induced by ship oscillatory motion in waves: Phenomenon, model, and experimentation [PDF]

open access: yesJASA Express Letters
Traditional research attributes the modulated sidebands of ship radiation line-spectrum signals to reflections off rough ocean surfaces, but the Doppler effect caused by vessel motion may also contribute.
Minhao Wang   +3 more
doaj   +1 more source

Characterization of Nonmetallic Inclusions in Ce‐Containing Steels at the Submicroscopic Level

open access: yessteel research international, EarlyView.
Accurate detection of nonmetallic inclusions (NMIs) is crucial for ensuring high standards in steel cleanness and properties. Optimized automated SEM/EDS measurements are required for evaluating Ce‐containing NMIs. This study enhances the characterization of submicroscopic NMI in Ce‐alloyed ultralow‐carbon, high‐manganese, and electrical steels ...
Kathrin Thiele, Robert Musi
wiley   +1 more source

DeepActivity: a micro-Doppler spectrogram-based net for human behaviour recognition in bio-radar

open access: yesThe Journal of Engineering, 2019
The movements of the human body and limbs result in unique micro-Doppler signatures, which can be exploited for classifying human activities. In this work, the authors propose a Convolutional Gated Recurrent Units Neural Network (CNN-GRU) to classify ...
Hao Du   +3 more
doaj   +1 more source

Evaluation of systemic consequences of brachycephalic obstructive airway syndrome in dogs

open access: yesVeterinary Record, EarlyView.
Abstract Background Brachycephalic obstructive airway syndrome (BOAS) results from upper airway anatomical abnormalities and may cause systemic effects depending on severity. Methods A prospective, case‒control and observational study was conducted.
Andréia Coutinho Facin   +11 more
wiley   +1 more source

Three-dimensional reconstruction of space rotating target based on narrow-band radar networks

open access: yesThe Journal of Engineering, 2019
The micro-motion of space target is an important signature for classification and recognition, which has received great attention. Based on the micro-Doppler signals from narrow-band radar networks, this study proposes a three-dimensional reconstruction ...
Chao Wang, Shu L. Wen, Chun M. Ye
doaj   +1 more source

A Retrospective Study of Two Mandibulectomy Approaches for T3‐Stage Lower Gingival Carcinoma

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objective This study retrospectively analyzes two mandibular resection techniques for T3‐stage lower gingival carcinoma, aiming to compare their impact on patient prognosis. Methods Retrospective cohort study. Data from 78 cases of T3‐stage lower gingival carcinoma involving the mandible were reviewed in our Department of Head and Neck Surgery.
Hang Ling   +6 more
wiley   +1 more source

AI‐Based Automated Instrument Tracking During Endoscopic Skull Base Surgery: A Pilot Feasibility Study

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Background Endoscopic endonasal approaches (EEA) to skull base tumors are a technically challenging procedure for both surgeons and trainees. Artificial intelligence and computer vision (CV) may offer an objective analysis that provides surgical assessment on technique and enhanced educational feedback for surgeons of all levels.
David R. Grimm   +14 more
wiley   +1 more source

Radar Micro-Doppler Patterns for Drone's Characterisation

open access: yes, 2019
Micro-Doppler patterns of multi-propeller drones measured by radar systems are widely used in the classification of different drones, since the micro-Doppler patterns illustrate the velocity and motion properties of the drones.
Cai, Yefeng (author)
core  

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