Results 41 to 50 of about 144,037 (209)

Trace ideals for Fourier integral operators with non-smooth symbols II

, 2007
We consider Fourier integral operators with symbols in modulation spaces and non-smooth phase functions whose second orders of derivatives belong to certain types of modulation space.
A. Boulkhemair, B. Simon, Francesco Concetti, H.G. Feichtinger, H.G. Feichtinger, H.G. Feichtinger, H.G. Feichtinger, H.G. Feichtinger, H.G. Feichtinger, J. Bergh, J. Sjöstrand, J. Toft, J. Toft, Joachim Toft, K. Asada, K. Gröchenig, M. Ruzhansky, M. Ruzhansky, M. Sugimoto, N. Teofanov, S. Pilipović, W. Baoxiang   +21 more
core   +2 more sources

Joule‐Assisted Nanotherapeutic Urethral Stent (JANUS) for Spatiotemporal Theragenerative Treatment of Urethral Strictures

Advanced Functional Materials, EarlyView.
Joule‐assisted nanotherapeutic urethral stent harnesses a smart, biodegradable magnesium stent to orchestrate spatiotemporal theragenerative therapy for urethral strictures. Magnetically induced Joule heating enables on‐demand drug release and bacterial ablation, while simultaneously guiding urothelial regeneration.
Yuhyun Na, Yubeen Park, Hyun Lee, Song Hee Kim, Seojoon Bang, Hyeong Seok Kang, Chan Ho Moon, Ju Yeong Gwon, Jong Hwa Seo, Min‐Ho Kang, Soo‐Hong Lee, Gi Doo Cha, Wooram Park, Heemin Kang, Jung‐Hoon Park, Hyun‐Do Jung   +15 more
wiley   +1 more source

$h$-Admissible Fourier integral operators [PDF]

TURKISH JOURNAL OF MATHEMATICS, 2016
We study in this work a class of h -admissible Fourier integral operators. These operators are bounded (respectively compact) in L 2 if the weight of the amplitude is bounded (respectively tends to 0).
Abderrahmane Senoussaoui, Chafika Amel Aitemrar   +1 more
openaire   +1 more source

Achieving Large and Anisotropic Spin‐Mediated Thermal Transport in Textured Quantum Magnets

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced solvent‐cast cold pressing method is developed to synthesize highly textured quantum magnets. By aligning spin chains in Ca2CuO3 perpendicular to the pressing direction, a spin‐mediated thermal conductivity of 10 ± 1 W m⁻¹ K⁻¹ is achieved, the highest reported for polycrystalline quantum materials.
Shucheng Guo, Xue Bai, Boqun Liang, Thomas Hoke, Ming Liu, Rafal E. Dunin‐Borkowski, Xi Chen   +6 more
wiley   +1 more source

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri, Amal C Chekkallur, Mario Calora, Rosanna Mastria, Loris Martinazzoli, Etiennette Auffray, Sanosh Kunjalukkal Padmanabhan, Sara Carturan, Sandra Moretto, Gianluca Quarta, Lucio Calcagnile, Matteo Polo, Alberto Quaranta, Alfonso Maffezzoli, Anna Paola Caricato, Aurora Rizzo, Carola Esposito Corcione   +16 more
wiley   +1 more source

Estimates for some bilinear wave operators

, 2023
We consider some bilinear Fourier multiplier operators and give a bilinear version of Seeger, Sogge, and Stein's result for Fourier integral operators.
Kato, Tomoya, Miyachi, Akihiko, Tomita, Naohito   +2 more
core  

On Traces of Fourier Integral Operators on Submanifolds [PDF]

Mathematical Notes, 2018
15 ...
openaire   +4 more sources

Material Composition Gradient Controls the Autonomous Opening of Banksia Seed Pods in Fire‐Prone Habitats

Advanced Functional Materials, EarlyView.
The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe, Lorenzo Guiducci, Rivka Elbaum, Peter Werner, John W. C. Dunlop, David J. Merritt, Peter Fratzl, Michaela Eder   +7 more
wiley   +1 more source

Ultra‐Fast Non‐Volatile Resistive Switching Devices with Over 512 Distinct and Stable Levels for Memory and Neuromorphic Computing

Advanced Functional Materials, EarlyView.
A materials and device design concept that comprises a self‐assembled ultra‐thin epitaxial ion‐transporting layer, an amorphous oxide overcoat oxygen‐blocking layer, and a partial filament formed during an electroforming step is proposed for low‐current multilevel resistive switching devices.
Ming Xiao, Markus Hellenbrand, Nives Strkalj, Babak Bakhit, Zhuotong Sun, Nikolaos Barmpatsalos, Dovydas Joksas, Hongyi Dou, Zedong Hu, Ping Lu, Samip Karki, Sundar Kunwar, Jonathan D. Major, Aiping Chen, Haiyan Wang, Quanxi Jia, Adnan Mehonic, Judith L. MacManus‐Driscoll   +17 more
wiley   +1 more source

A Class of Unbounded Fourier Integral Operators

Journal of Mathematical Analysis and Applications, 1998
INTRODUCTION The theory of pseudodifferential operators is well suited for investigating various problems connected with elliptic differential equations. However, this theory fails to be adequate for studying equations of hyperbolic type, and one is then forced to examine a wider class of operators, the Ž w x. so-called Fourier integral operators see 1,
openaire   +2 more sources