Results 31 to 40 of about 3,465,629 (248)

Direct micro-structuring of Si(111) surfaces through nanosecond-laser Bessel beams

, 2019
We present here a nanosecond laser ablation of Si(111) wafer with diffraction-free (Bessel-$J_0$) beams. First, the Axicon a conical shaped optical element for beam shaping is characterized with a visible and infrared light sources.
Demirci, Erkan, Kaya, Elif Turkan Aksit, Sahin, Ramazan   +2 more
core   +1 more source

Safety of pulsed field ablation in more than 17,000 patients with atrial fibrillation in the MANIFEST-17K study

Nature Medicine
Pulsed field ablation (PFA) is an emerging technology for the treatment of atrial fibrillation (AF), for which pre-clinical and early-stage clinical data are suggestive of some degree of preferentiality to myocardial tissue ablation without damage to ...
E. Ekanem, P. Neužil, T. Reichlin, J. Kautzner, P. van der Voort, P. Jais, G. Chierchia, A. Bulava, Y. Blaauw, Tomáš Skála, M. Fiala, M. Duytschaever, Gábor Széplaki, Boris Schmidt, G. Massoullié, K. Neven, O. Thomas, J. Vijgen, E. Gandjbakhch, D. Scherr, A. Johannessen, D. Keane, S. Boveda, Philippe Maury, I. García-Bolao, A. Anić, P. S. Hansen, F. Raczka, A. Lepillier, Yves Guyomar, D. Gupta, J. V. van Opstal, P. Defaye, C. Sticherling, P. Sommer, P. Kučera, J. Osca, Fariborz Tabrizi, Antoine Roux, M. Gramlich, S. Bianchi, P. Adragão, F. Solimene, Claudio Tondo, A. D. Russo, J. Schreieck, Armin Luik, O. Rana, Gerrit Frommeyer, F. Anselme, Ingo Kreis, Raphael Rosso, A. Metzner, L. Gellér, S. Baldinger, A. Ferrero, S. Willems, A. Goette, G. Mellor, S. Mathew, L. Szumowski, R. Tilz, S. Iacopino, Peter Karl Jacobsen, A. George, P. Osmančík, S. Spitzer, R. Balasubramaniam, A. Parwani, T. Deneke, A. Glowniak, A. Rossillo, H. Pürerfellner, D. Duncker, P. Reil, T. Arentz, D. Steven, J. J. Olalla, J. D. de Jong, R. Wakili, S. Abbey, Gottschling Timo, A. Asso, T. Wong, Bertrand Pierre, N. C. Ewertsen, L. Bergau, C. Lozano-Granero, Maximo Rivero, Alexander Breitenstein, J. Inkovaara, Samir Fareh, D. Lațcu, Dominik K Linz, Patrick Müller, J. Ramos-Maqueda, T. Beiert, S. Themistoclakis, D. Meininghaus, Günter Stix, S. Tzeis, J. Baran, H. Almroth, D. Muñoz, João de Sousa, M. Efremidis, P. Balsam, J. Petru, Thomas Küffer, P. Peichl, L. Dekker, D. D. Della Rocca, O. Moravec, M. Funasako, Sébastien Knecht, G. Jauvert, J. Chun, R. Eschalier, Anna Füting, Alexandre Zhao, P. Koopman, M. Laredo, M. Manninger, J. Hansen, D. O'Hare, A. Rollin, Z. Jurišić, T. Fink, C. Chaumont, A. Rillig, Melanie Gunawerdene, Claire Martin, B. Kirstein, K. Nentwich, H. Lehrmann, Arian Sultan, J. Bohnen, M. Turagam, Vivek Y. Reddy   +138 more
semanticscholar   +1 more source

Pulsed-Field Ablation Using a Novel Ablation-Mapping Integrated System for Pulmonary Vein Isolation—A Preliminary Animal Study

Journal of Cardiovascular Development and Disease, 2022
Objective: The purpose of this study is to evaluate the preliminary safety and effect of a pulsed electric field (PEF) ablation system. Methods: The pulmonary veins (PVs) and superior vena cava (SVC) were isolated with the pulsed field ablation (PFA ...
Zhihong Zhao, Yonggang Chen, Bin Wu, Gaodong Qiu, Liangjie Hong, Xinhua Chen, Xingwei Zhang   +6 more
doaj   +1 more source

Advances in the Application of Pulsed Field Ablation for Arrhythmia Treatment

Cardiovascular Innovations and Applications, 2023
The increased application of catheter ablation to treat cardiac arrhythmias has contributed to continued exploration of safe and effective tissue ablation tools in the field of electrophysiology.
Fuding Guo, Jun Wang, Liping Zhou, Yueyi Wang, Hong Jiang, Lilei Yu   +5 more
doaj   +1 more source

Current dependence of grain boundary magnetoresistance in La_0.67Ca_0.33MnO_3 films

, 1999
We prepared epitaxial ferromagnetic manganite films on bicrystal substrates by pulsed laser ablation. Their low- and high-field magnetoresistance (MR) was measured as a function of magnetic field, temperature and current.
Friedrich, S., Jakob, G., Maier, M., Martin, F., Westerburg, W.   +4 more
core   +1 more source

Magnetic Tower Outflows from a Radial Wire Array Z-pinch [PDF]

, 2005
We present the first results of high energy density laboratory astrophysics experiments which explore the evolution of collimated outflows and jets driven by a toroidal magnetic field.
A. Ciardi, A. Frank, Akiyama, Ampleford, Ampleford, Bacciotti, Balick, Begelman, Bennett, Blackman, Blackman, Blandford, Bujarrabal, C. A. Jennings, Ciardi, Ciardi, Ciardi, Coffey, Contopoulos, Contopoulos, Cuneo, D. J. Ampleford, Deeney, E. G. Blackman, Farley, Foster, G. N. Hall, Galama, Gardiner, Goodson, Hardee, Hsu, Hsu, J. P. Chittenden, J. Rapley, Kato, Kato, Khokhlov, Kudoh, Kudoh, Lada, Lebedev, Lebedev, Lebedev, Leblanc, Logory, Lovelace, Lynden-Bell, Lynden-Bell, Lyutikov, MacFadyen, Matt, Meier, Mizuta, Moiseenko, Nakamura, Ouyed, Ouyed, Pearson, Pelletier, Pereira, Piran, Post, Pudritz, Raga, Reipurth, Romanova, Ryutov, Ryutov, Ryutov, S. C. Bott, S. N. Bland, S. V. Lebedev, Shibata, Shigemori, Shu, Stanek, Stone, T. Lery, Uchida, Ustyugova, Ustyugova, Ustyugova, Wardle, Wheeler   +84 more
core   +1 more source

Sequential Unipolar Biventricular Pulsed Field Ablation for Refractory Intramural Septal Ventricular Tachycardia

JACC: Case Reports
Catheter ablation of septal ventricular tachycardia (VT) is challenging. Pulsed field ablation is a promising technology, potentially reaching deep substrates.
María Cespón-Fernández, MD, PhD, Luigi Pannone, MD, Domenico Della Rocca, MD, PhD, Mark La Meir, MD, PhD, Alexander Almorad, MD, Gian-Battista Chierchia, MD, PhD, Carlo de Asmundis, MD, PhD, Andrea Sarkozy, MD, PhD   +7 more
doaj   +1 more source

Epicardial Pulsed Field Ablation of Ganglionated Plexi: Computational and Pre-Clinical Evaluation of a Bipolar Sub-Xiphoid Catheter for the Treatment of Atrial Fibrillation

Bioengineering, 2023
Epicardial pulsed field ablation (PFA) of ganglionated plexi (GPs) is being explored as a potential treatment for atrial fibrillation. Initial work using open-chest access with a monopolar ablation device has been completed.
Barry O’Brien, John Reilly, Ken Coffey, Ana González-Suárez, Piotr Buchta, Piotr P. Buszman, Karolina Lukasik, Jason Tri, Martin van Zyl, Samuel Asirvatham   +9 more
doaj   +1 more source

Concentrator of laser energy for thin vapour cloud production near a surface [PDF]

, 1998
A novel scheme is presented for production of a thin ($100$ cm$^2$) by pulsed laser ablation of a solid surface. Instead of dispersing the laser energy uniformly over the surface, a modified Fabry-Perot interferometer is employed to concentrate the laser
B.A. Knyazev, Basov, Bluhm, Fournet, J.B. Greenly, Knyazev, P.I. Melnikov, Slutz   +7 more
core   +2 more sources

Effect of Pulsed-Field Ablation on Human Coronary Arteries: A Longitudinal Study With Intracoronary Imaging.

JACC Clinical Electrophysiology
BACKGROUND Pulsed-field ablation (PFA) is known to cause acute coronary spasm. Whether this translates into long-term coronary artery stenosis is unknown. OBJECTIVES This study sought to evaluate changes in coronary artery after PFA for atrial flutter.
Mark T.K. Tam, J. Y. Chan, Chin-Pang Chan, E. Wu, Angel Lai, Alex C K Au, Wai-Kin Chi, Guang-Ming Tan, Bryan P. Yan   +8 more
semanticscholar   +1 more source