Results 41 to 50 of about 135,451 (244)

A dynamical interpretation of flutter instability in a continuous medium

, 2010
Flutter instability in an infinite medium is a form of material instability corresponding to the occurrence of complex conjugate squares of the acceleration wave velocities.
Andrea Piccolroaz, Bertoldi, Bigoni, Bigoni, Bigoni, Bigoni, Bigoni, Bigoni, Bigoni, Bigoni, Bigoni, Davide Bigoni, John R. Willis, Lebedev, Loret, Rice, Willis   +16 more
core   +1 more source

Isthmus Dependent Atrial Flutter Cycle Length Correlates with Right Atrial Cross-Sectional Area

Indian Pacing and Electrophysiology Journal, 2009
Background: Right atrial flutter cycle length can prolong in the presence of antiarrhythmic drug therapy. We hypothesized that the cycle length of right atrial isthmus dependent flutter would correlate with right atrial cross-sectional area measurements.
Kousik Krishnan, Akshay Gupta, Sean M. Halleran, Dave Chawla, Elizabeth F. Avery, Julia L. Bienias, Richard G. Trohman   +6 more
doaj  

Diaphragmatic flutter [PDF]

Postgraduate Medical Journal, 1977
Summary A case is reported of diaphragmatic flutter with an unusually long duration of symptoms. The patient described demonstrates many of the classical features of this disorder.
openaire   +2 more sources

Study on coupled mode flutter parameters of large wind turbine blades

Scientific Reports
As the size of wind turbine blades increases, the flexibility of the blades increases. In actual operation, airflow flow can cause aerodynamic elastic instability of the blade structure.
Yong Zhuang, Guangming Yuan
doaj   +1 more source

Virtualizing clinical cases of atrial flutter in a fast marching simulation including conduction velocity and ablation scars

Current Directions in Biomedical Engineering, 2015
Diagnosis of atrial flutter caused by ablation of atrial fibrillation is complex due to ablation scars. This paper presents an approach to replicate the clinically measured flutter circuit in a dynamic computer model.
Trächtler J., Oesterlein T., Loewe A., Poremba E., Luik A., Schmitt C., Dössel O.   +6 more
doaj   +1 more source

Flutter instability analysis of bridge decks using the step-by-step method

Vietnam Journal of Mechanics, 2014
The branch switch characteristics of coupled flutter are clarified by use of Step-by-Step flutter analysis. In the case of typically coupled flutter instability, the branch switch characteristic from torsional branch to heaving branch is observed.
Nguyen Van Khang, Tran Ngoc An
doaj   +1 more source

Atrial Flutter, The Commonly Misdiagnosed Arrhythmia as Supraventricular Tachycardia or Sinus Tachycardia

The Iraqi Journal of Medical Sciences, 2021
Background: Atrial flutter is a common arrhythmia in structurally normal or abnormal heart. The electrocardiographic features of it can be mistaken for sinus tachycardia or supraventricular tachycardia.
Amar Alhamdi
doaj   +1 more source

Rapid wide QRS tachycardia with an unknown cause

Annals of Noninvasive Electrocardiology, 2022
One‐to‐one atrioventricular conduction during atrial flutter is one of the most severe life‐threatening arrhythmias and is hemodynamically perilous. Rapid wide QRS tachycardia often not only occurs in patients with ventricular tachycardia but is also ...
Dalong Hu, Jingxiu Li
doaj   +1 more source

A Study on Post-Flutter Characteristics of a Large-Span Double-Deck Steel Truss Main Girder Suspension Bridge

Buildings
To investigate the nonlinear flutter characteristics of long-span suspension bridges under different deck ancillary structures and configurations, including those with and without a central wind-permeable zone, as well as to analyze the hysteresis ...
Chunguang Li, Minhao Zou, Kai Li, Yan Han, Hubin Yan, Chunsheng Cai   +5 more
doaj   +1 more source

Atrial Flutter in Infants

Journal of the American College of Cardiology, 2006
We sought to characterize the clinical nature of atrial flutter (AFL) in a large cohort of infants.There are no large studies describing the natural history of AFL in infants. Previous studies vary in the therapy used and expected prognosis.We reviewed the records of all children younger than 1 year of age who were diagnosed with AFL at our hospital ...
Karen M. Texter, Naomi J. Kertesz, Arnold L. Fenrich, Richard A. Friedman   +3 more
openaire   +3 more sources