Results 51 to 60 of about 16,696 (216)

IMPULSIVE ACCELERATION OF CORONAL MASS EJECTIONS. I. STATISTICS AND CORONAL MASS EJECTION SOURCE REGION CHARACTERISTICS [PDF]

The Astrophysical Journal, 2011
We use high time cadence images acquired by the STEREO EUVI and COR instruments to study the evolution of coronal mass ejections (CMEs) from their initiation through impulsive acceleration to the propagation phase. For a set of 95 CMEs we derived detailed height, velocity, and acceleration profiles and statistically analyzed characteristic CME ...
Bein, Bianka, Berkebile-Stoiser, Sigrid, Veronig, Astrid, Temmer, Manuela, Muhr, Nicole, Kienreich, Ines, Utz, Dominik, Vršnak, Bojan   +7 more
openaire   +1 more source

Left Ventricular Outflow Tract Geometry as a Predictor of Permanent Pacemaker Implantation After Transcatheter Aortic Valve Implantation Using the Evolut Series

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Predicting the need for permanent pacemaker implantation (PPM) after transcatheter aortic valve implantation (TAVI) is crucial for procedural planning and patient counseling. Aims To evaluate whether left ventricular outflow tract (LVOT) morphology, specifically a tapered configuration, predicts conduction disturbances requiring PPM
Mahmoud Abdelshafy, Angela McInerney, Ahmed Elmeanawy, Paolo Alberto Del Sole, Max Wagener, Hatem Helal, Mahmoud Abozaid, Ashraf Alamir, Tamer Fouad, Alsayed Almarghany, Briain MacNeill, Osama Soliman, Darren Mylotte, Mohammad Abdelghani   +13 more
wiley   +1 more source

Source Regions of Coronal Mass Ejections

, 2001
Observations of the solar corona with the Large Angle Spectrometric Coronograph (LASCO) and Extreme ultraviolet Imaging Telescope (EIT) instruments on the Solar and Heliospheric Observatory (SOHO) provide an unprecedented opportunity to study coronal ...
Delannee C., K. P. Dere, Prasad Subramanian   +2 more
core   +1 more source

Short term Variability of the Sun Earth System: An Overview of Progress Made during the CAWSES II Period [PDF]

, 2015
This paper presents an overview of results obtained during the CAWSES II period on the short term variability of the Sun and how it affects the near Earth space environment. CAWSES II was planned to examine the behavior of the solar terrestrial system as
Gopalswamy, Nat, Tsurutani, Bruce, Yan, Yihua   +2 more
core   +2 more sources

Laboratory-generated Coronal Mass Ejections [PDF]

Proceedings of the International Astronomical Union, 2010
AbstractWe have begun a series of laboratory experiments focused on understanding how coronal mass ejections (CME) interact and evolve in the solar wind. The experiments make use of the Helicon-Cathode (HelCat) plasma facility, and the Plasma Bubble eXperiment (PBeX).
Christopher Watts, Yue Zhang, Alan Lynn, Ward Manchester, C. Nick Arge   +4 more
openaire   +1 more source

Coalescence of Magnetic Flux Ropes Within Interplanetary Coronal Mass Ejections: Multi-cases Studies

Frontiers in Physics, 2019
Coronal mass ejections (CMEs) are intense solar explosive eruptions and have significant impact on geomagnetic activities. It is important to understand how CMEs evolve as they propagate in the solar-terrestrial space.
Yan Zhao, Yan Zhao, Hengqiang Feng, Hengqiang Feng, Qiang Liu, Qiang Liu, Guoqing Zhao, Guoqing Zhao   +7 more
doaj   +1 more source

Global Coronal Mass Ejections

The Astrophysical Journal, 2007
Observations of the low solar corona in the extreme ultraviolet and in soft X-rays evidence a close relationship of coronal dimmings and coronal mass ejections (CMEs). Dimmings are usually interpreted as places of plasma evacuation during a CME. We characterize a CME by the apparent angular extent of associated dimmings above the solar limb and define ...
Andrei N. Zhukov, Igor S. Veselovsky
openaire   +1 more source

Investigating the driving mechanisms of coronal mass ejections

, 2010
The objective of this investigation was to first examine the kinematics of coronal mass ejections (CMEs) using EUV and coronagraph images, and then to make a comparison with theoretical models in the hope to identify the driving mechanisms of the CMEs ...
Bong, Brueckner, C. L. Raftery, C.-H. Lin, Chen, Cremades, Delaboudinière, DeVore, Forbes, Forbes, Gallagher, Garcia, Howard, Kliem, Krall, Lin, Lin, Lin, Lynch, Lynch, Manoharan, Neupert, P. T. Gallagher, Priest, Reeves, Schrijver, Sheeley, Temmer, Török, van Tend, Zhang   +30 more
core   +1 more source

COMPOSITION OF CORONAL MASS EJECTIONS [PDF]

The Astrophysical Journal, 2016
ABSTRACT We analyze the physical origin of plasmas that are ejected from the solar corona. To address this issue, we perform a comprehensive analysis of the elemental composition of interplanetary coronal mass ejections (ICMEs) using recently released elemental composition data for Fe, Mg, Si, S, C, N, Ne, and He as compared to O and H ...
T. H. Zurbuchen, M. Weberg, R. von Steiger, R. A. Mewaldt, S. T. Lepri, S. K. Antiochos   +5 more
openaire   +2 more sources

The Patient‐Centred Interdental Cleaning Concept—Consensus Based on a Round Table

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim To consolidate clinical and scientific evidence and develop personalised recommendations for the optimal use of interdental devices, addressing the diverse needs of patients with varying oral health conditions based on the outcomes of an expert meeting.
Tim M. J. A. Thomassen, Dagmar E. Slot, Christian Graetz, Nicola Discepoli, Johannes C. Ehrenthal, Cornelia Frese, Inmaculada Tomás, Christof E. Dörfer, Fridus (G. A.) Van der Weijden, Sonja Sälzer   +9 more
wiley   +1 more source