Results 101 to 110 of about 9,354 (174)

Unconstrained GNSS Water Vapor Tomography With Real Data and LEO Augmentation

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The availability of four complete GNSS constellations (GPS, GLONASS, BeiDou and Galileo) offers, for the first time, the possibility of performing water vapor tomographic inversions that do not rely on external data. A tomographic model that includes no external constraints and requires no first guess and no virtual observations is described ...
P. M. A. Miranda, G. A. Hajj, J. Teixeira, P. Mateus   +3 more
wiley   +1 more source

Arterial pulse waveform and PWV

, 2018
Cardiovascular diseases has been on a rising trend in recent years and there are many risk factors including diet and age. A person’s age and the stiffness of his arterial walls are two of the most established cardiovascular risk factors.
Chew, Jek HuI
core  

Evaluation and Correction of GFS Water Vapor Products over United States Using GPS Data

Remote Sensing
Precipitable water vapor (PWV) is one of the most dynamic components of the atmosphere, playing a critical role in precipitation formation, the hydrological cycle, and climate change.
Hai-Lei Liu, Xiao-Qing Zhou, Yu-Yang Zhu, Min-Zheng Duan, Bing Chen, Sheng-Lan Zhang   +5 more
doaj   +1 more source

Construction of a Continuous High-Resolution PWV Using GNSS/ERA5, InSAR, and FY-4A Data: A Case Study of the Jiaodong Peninsula and Adjacent Seas

Applied Sciences
Precipitable water vapor (PWV) is a pivotal parameter in the measurement of atmospheric water vapor content. Interferometric Synthetic Aperture Radar (InSAR) is capable of retrieving PWV with high accuracy and spatial resolution. However, the limitations
Qiuying Guo, Zhengyu Wang, Dewei Li, Yingjun Sun, Jian Zhang, Heng Liu   +5 more
doaj   +1 more source

The reproducibility of the PWV measurements in vitro and in vivo studies.

, 2015
Notes: PWVA-B, pulse wave velocity between point A and B; PWVM, local pulse wave velocity at the middle of point A and B; CV, coefficient of variation; SD, standard deviation.The reproducibility of the PWV measurements in vitro and in vivo studies.
Zhen Wang (72451), Tie-sheng Cao (288959), Yun-you Duan (288960), Jie Liu (15128), Yong Yang (63842), Li-jun Yuan (288958)   +5 more
core   +1 more source

Aortic Stiffness Is Related to the Ischemic Brain Injury Biomarker N-Methyl-D-aspartate Receptor Antibody Levels in Aortic Valve Replacement

Neurology Research International, 2014
Background. Aortic stiffness changes the flow pattern of circulating blood causing microvascular damage to different end-organ tissues, such as brain cells.
Emaddin Kidher, Vanash M. Patel, Petros Nihoyannopoulos, Jon R. Anderson, Andrew Chukwuemeka, Darrel P. Francis, Hutan Ashrafian, Thanos Athanasiou   +7 more
doaj   +1 more source

Effects of inaccuracies in arterial path length measurement on differences in MRI and tonometry measured pulse wave velocity

BMC Cardiovascular Disorders, 2017
Background Carotid-femoral pulse wave velocity (cf-PWV) and aortic PWV measured using MRI (MRI-PWV) show good correlation, but with a significant and consistent bias across studies.
Jonathan R Weir-McCall, Faisel Khan, Deirdre B Cassidy, Arsh Thakur, Jennifer Summersgill, Shona Z Matthew, Fiona Adams, Fiona Dove, Stephen J Gandy, Helen M Colhoun, Jill JF Belch, J Graeme Houston   +11 more
doaj   +1 more source

Correlation between carotid-femoral pulse wave velocity (PWV) at one measurement and 24-hour PWV in men and women assessed by two different methods in a population-based study [Elektronisk resurs]

Objective: Aortic stiffness can be assessed by pulse wave velocity (PWV) using golden standard applanation tonometry (SphygmoCor; SC) or a 24-hour ambulatory oscillometric method (Arteriograph; AG).
Nilsson, Peter,, Johansson, Madeleine,, Lund University.   +2 more
core   +2 more sources

Arterial Stiffness and Aortic Aneurysmal Disease – A Narrative Review

Vascular Health and Risk Management
Konstantinos G Moulakakis,1,* Christos F Pitros,1,* Ioannis T Theodosopoulos,2 Spyridon N Mylonas,3 John D Kakisis,2 Christos Manopoulos,4 Nikolaos PE Kadoglou5 1Department of Vascular Surgery, Patras University Hospital, University of Patras ...
Moulakakis KG, Pitros CF, Theodosopoulos IT, Mylonas SN, Kakisis JD, Manopoulos C, Kadoglou NPE   +6 more
doaj  

Added value of aortic pulse wave velocity index for the detection of coronary heart disease by elective coronary angiography

Blood Pressure, 2019
Background: Non-invasive tests leading to elective coronary angiography (CAG) have low diagnostic yield for obstructive coronary heart disease (CHD). Aortic stiffness, an independent predictor of CHD events can be easily measured by pulse wave velocity ...
Alexandre Vallée, Yi Zhang, Athanase Protogerou, Michel E. Safar, Jacques Blacher   +4 more
doaj   +1 more source