Results 101 to 110 of about 643,838 (299)

A Quality Control Concept for Radar Reflectivity, Polarimetric Parameters, and Doppler Velocity [PDF]

, 2006
Over the last few years the use of weather radar data has become a fundamental part of various applications like rain-rate estimation, nowcasting of severe weather events, and assimilation into numerical weather prediction models.
Friedrich, Katja, Einfalt, Thomas, Hagen, Martin   +2 more
core   +1 more source

Anatomical Variation of Absent Facial Vein: Implications for Facial Reanimation Surgery

Head &Neck, EarlyView.
ABSTRACT Background The facial vein is the standard recipient vessel in facial reanimation surgery. Its complete absence is rarely described but may cause major challenges during free functional muscle transfer (FFMT). This study aimed to determine the prevalence and predictors of facial vein absence and assess its surgical relevance in facial ...
Cam T. Nguyen, Mark Fricke, Justus Osterloh, Ayla A. Hohenstein, Steffen U. Eisenhardt   +4 more
wiley   +1 more source

Vascular Testing to Overcome Anatomical Contraindication: Fibula Free Flap in Bilateral Peronea Arteria Magna

Head &Neck, EarlyView.
ABSTRACT Background Peronea arteria magna (PAM) is an established contraindication for fibula free flap due to concern for vascular compromise of the lower leg. Methods This is a case of a 74‐year‐old male with a history of multiply recurrent oral cavity cancer who had undergone prior free flap reconstruction who presented with a new oral cavity ...
Jacob Beiriger, Richard Bavier, Ziga Cizman, Faris Galambo, Kaohinani J. Longwolf, Richard Cannon, Hilary McCrary, Marcus Monroe   +7 more
wiley   +1 more source

Investigation into the selection of viewing configurations for three-component planar Doppler velocimetry measurements. [PDF]

, 2007
A method for the calculation of three orthogonal velocity components in planar Doppler velocimetry (PDV) using four or more measured velocity components (to the three typically used) is presented.
Nobes, David S., Charrett, Thomas O. H., Tatam, Ralph P.   +2 more
core  

Instantaneous, three-component planar Doppler velocimetry using imaging fibre bundles [PDF]

, 2004
This paper describes a planar Doppler velocimetry (PDV) technique that is capable of measuring the three, instantaneous and time average components of velocity over two spatial dimensions using a single pair of signal and reference cameras.
Nobes, David S., Tatam, Ralph P., Ford, Helen D.   +2 more
core   +1 more source

Superior Labial Artery Mucosal Flap (SLAM) for Reconstruction of Major Lower Lip Mucosal Defects

Head &Neck, EarlyView.
ABSTRACT Background The superior labial artery mucosal (SLAM) flap is a versatile, pedicled axial flap ideally suited for mucosal lining in lower lip reconstruction. Methods This article details the surgical anatomy and technique of the SLAM flap, highlighting its role as a standalone liner or mucosal adjunct to microvascular free tissue transfer in ...
Nicholas Shannon, Takako Eva Yabe, Bruce Ashford   +2 more
wiley   +1 more source

Joint Delay Doppler Probability Density Functions for Air-to-Air Channels

International Journal of Antennas and Propagation, 2014
Recent channel measurements indicate that the wide sense stationary uncorrelated scattering assumption is not valid for air-to-air channels. Therefore, purely stochastic channel models cannot be used. In order to cope with the nonstationarity a geometric
Michael Walter, Dmitriy Shutin, Uwe-Carsten Fiebig   +2 more
doaj   +1 more source

Joint 2-D DOA and Doppler Estimation for L-Shaped Array via Dual PARAFAC With Triple Matching Implementation

IEEE Access, 2019
A dual parallel factor (PARAFAC)-based approach to jointly estimating the two-dimensional direction of arrival (2-D DOA) and Doppler is proposed in this paper, where an L-shaped array consisting of acoustic vector-sensor is used.
Riheng Wu, Le Xu, Zhenhai Zhang, Yangyang Dong   +3 more
doaj   +1 more source

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

Ibrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li, Ziba Ayi, Gonggong Lu, Haibo Rao, Feilong Yang, Jing Li, Jiachen Sun, Junlin Lu, Xulin Hu, Si Zhang, Xuhui Hui   +10 more
wiley   +1 more source

The Doppler-Delay Characteristic of the Aeronautical Scatter Channel

, 2011
The objective of this paper is to characterize the scattered components in an aeronautical channel in terms of delay and Doppler frequency. Geometric considerations make it possible to locate the scatterers on the ground and derive analytical ...
Michael Walter, Michael Schnell, Schnell, Michael, Walter, Michael   +3 more
core   +1 more source