Results 21 to 30 of about 4,357 (257)

Effect of fluoroscopy frame rate on radiation exposure and in‐hospital outcomes in three‐dimensional electroanatomic mapping guided procedures

Journal of Arrhythmia, 2021
Background Fluoroscopic imaging involves exposure of the patients and the laboratory staff to ionizing radiation. One of the strategies that reduce such exposure in an electrophysiology laboratory is using a three‐dimensional electroanatomic mapping (3D ...
Muzaffar Ali, Deepak Padmanabhan, Khalil Kanjwal, Milan Kumar Ghadei, Anju Kottayan, Bharatraj Banavalikar, Jayaprakash Shenthar   +6 more
doaj   +1 more source

SparkleMap-based left atrial flutter mapping and ablation

Revista Portuguesa de Cardiologia, 2023
Ablation of atypical left atrial flutters (LAF) is very challenging due to the complexity of the underlying atrial substrate and diverse arrhythmia mechanisms. The interpretation of the arrhythmia mechanism is usually difficult, even using advanced three-
Nuno Cortez-Dias, Gustavo Lima da Silva, Afonso Nunes Ferreira, Joana Quaresma, Sílvia Sobral, Luís Carpinteiro, João de Sousa   +6 more
doaj   +1 more source

Instability mechanism of flutter generated on a rectangular sheet

Nihon Kikai Gakkai ronbunshu, 2018
An instability mechanism of flutter generated on a rectangular flexible sheet in an axial fluid flow is investigated through the energy-transfer quantifications.
Keiichi HIROAKI, Masahiro WATANABE
doaj   +1 more source

Flutter prediction, suppression and control in aircraft composite wings as a design prerequisite: a survey [PDF]

, 2007
Emergence of flutter compromises not only the long-term durability of the wing structure, but also the operational safety, flight performance and energy efficiency of the aircraft. Effectual means of flutter prevention are, therefore, mandatory in the
Njuguna, James A. K.
core   +1 more source

Adaptive control of a nonlinear aeroelastic system [PDF]

, 2011
Aeroelastic two-dimensional wing section with both trailing-edge (TE) and leading-edge (LE) was investigated in this paper through numerical simulation in time domain.
Shijun Guo, Xiang, Jinwu, Guo, Shijun J., Li, Daochun, Jinwu Xiang, Daochun Li   +5 more
core   +1 more source

Sensitivity Analysis of Geometrical Parameters on the Aerodynamic Performance of Closed-Box Girder Bridges

Sensors, 2018
In this study, the influence of two critical geometrical parameters (i.e., angles of wind fairing, α; and lower inclined web, β) in the aerodynamic performance of closed-box girder bridges was systematically investigated through conducting a ...
Yongxin Yang, Rui Zhou, Yaojun Ge, Yanliang Du, Lihai Zhang   +4 more
doaj   +1 more source

Aeroelastic dynamic response and control of an airfoil section with control surface nonlinearities [PDF]

, 2010
Nonlinearities in aircraft mechanisms are inevitable, especially in the control system. It is necessary to investigate the effects of them on the dynamic response and control performance of aeroelastic system.
Shijun Guo, Xiang, Jinwu, Guo, Shijun J., Li, Daochun, Jinwu Xiang, Daochun Li   +5 more
core   +1 more source

Aero-servo-elastic analysis of a hypersonic aircraft

Journal of Low Frequency Noise, Vibration and Active Control, 2018
Aero-servo-elastic analysis of a complex hypersonic aircraft is presented in this paper. A structure geometry was designed and built based on the X-43A vehicle.
Wei Qian, Yuguang Bai, Xiangyan Chen, Taojun Lu   +3 more
doaj   +1 more source

Critical bifurcation surfaces of 3D discrete dynamics

Discrete Dynamics in Nature and Society, 2000
This paper deals with the analytical representation of bifurcations of each 3D discrete dynamics depending on the set of bifurcation parameters. The procedure of bifurcation analysis proposed in this paper represents the 3D elaboration and specification ...
Michael Sonis
doaj   +1 more source

Comparison of clinical outcomes and safety of catheter ablation for atrial fibrillation supported by data from CT scan or three-dimensional rotational angiogram of left atrium and pulmonary veins

Biomedical Papers, 2015
Background: Catheter ablation in the left atrium has become a common therapeutic strategy in the management of atrial fibrillation (AF). The high degree of success and safety profile of this procedure is dependent on precise knowledge of the true anatomy
Frantisek Lehar, Zdenek Starek, Jiri Jez, Miroslav Novak, Jiri Wolf, Radka Stepanova, Peter Kruzliak, Tomas Kulik, Alena Zbankova, Radek Jancar, Jiri Vitovec   +10 more
doaj   +1 more source