Results 41 to 50 of about 37,855 (164)
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. By careful electrocardiogram (ECG) inspection or by
Amar T. Alhamdi
doaj +4 more sources
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
Current Biology, 2005 For many conservationists, butterflies are some of the key species that can indicate the quality of an environment not only for themselves but for many other, often less visible, species. Some of their specific needs are often well known, but movements around their habitat and important factors within it are less understood. To help address this issue,
openaire +1 more source
Research progress on analysis and test methods of aircraft panel flutter
Hangkong gongcheng jinzhanAircraft panel flutter is a typical aeroelastic stability problem that occurs during supersonic flight，and is characterized by aerodynamic unilateral effects and significant structural and aerodynamic nonlinearity.
HE Chuanyang +4 more
doaj +1 more source
Flutter Speed Limits of Cantilever Rectangular and Tapered Plates
Al-Khawarizmi Engineering Journal, 2007 The aerodynamic and elastic forces may cause an oscillation of the structure such as the high frequency of the airfoil surfaces and the dynamic instability occurring in an aircraft in flight and failure may occur at a speed called flutter speed.
Kusay H. Jabir
doaj +2 more sources
RUDN Journal of Medicine, 2016 Aim - to evaluate the effectiveness of radiofrequency ablation cavotricuspid of the isthmus in patients with diabetes mellitus (DM) type 2, and typical atrial flutter, as well as to identify the factors of recurrence of atrial flutter after the procedure.
Yu A Kachanova, N A Novikova, A L Syrkin
doaj
Set Membership Strategy for Closed Loop Aircraft Flutter Controller Design
IEEE AccessWe consider the problem of set membership identification and control for closed loop aircraft flutter platform within the practical case of bounded noise.
Liu Yunhong, Wang JIanhong
doaj +1 more source
Journal of Marine Science and EngineeringAs onshore space resources become exhausted, the migration of wind turbines to offshore areas is an inevitable trend. The blades of offshore wind turbines are typically over 100 m long, and this increased nonlinearity in the blades escalates the risk of ...
Weiliang Liao +5 more
doaj +1 more source
Pseudoventricular Flutter [PDF]
Baylor University Medical Center Proceedings, 2007 D Luke, Glancy +3 more
openaire +2 more sources
Aeroelastic Analysis of a Tailless Flying Wing with a Rotating Wingtip
AerospaceThis paper presents a preliminary investigation into the aeroelastic behavior of a tailless flying wing equipped with a rotating wingtip. Based on the configuration of Innovative Control Effectors (ICE) aircraft, an aeroelastic model of the tailless ...
Weiji Wang +6 more
doaj +1 more source