Results 61 to 70 of about 35,784 (255)

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

Laser &Photonics Reviews, EarlyView.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler, Barbara Schneider, Victor Turpaud, Stefano Calcaterra, Davide Impelluso, Marco Faverzani, David Bouville, Jean‐René Coudevylle, Samson Edmond, Etienne Herth, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella, Jérôme Faist, Delphine Marris‐Morini   +17 more
wiley   +1 more source

Dobinski-type relations: Some properties and physical applications

, 2005
We introduce a generalization of the Dobinski relation through which we define a family of Bell-type numbers and polynomials. For all these sequences we find the weight function of the moment problem and give their generating functions.
A Horzela, A I Solomon, Akhiezer N I, Bell E T, Bell E T, Bender C M, Blasiak P, Comtet L, Dobiński G, K A Penson, Katriel J, Klauder J R, Louisell W H, Navon A M, P Blasiak, Penson K A, Penson K A, Penson K A Solomon A I, Rota G-C, Solomon A I Blasiak P Duchamp G Horzela A Penson K A, Solomon A I Duchamp G H E Blasiak P Horzela A Penson K A, Varvak A, Wilf H S   +22 more
core   +1 more source

An extension of the bell polynomials

Computers & Mathematics with Applications, 2004
The authors introduce an extension of Bell polynomials, also called ``partition polynomials''. For a given integer \(M\) they define a generalized Bell polynomial \(Y_n^{[M-1]}\) as representing the \(n\)th derivative of the composite function \(\Phi(t) := f_{(1)}(f_{(2)}(\cdots(f_{(M)}(t))))\), where the functions \(f_{(M)}\), \dots, \(f_{(2)}\), \(f_{
NATALINI P., RICCI, Paolo Emilio
openaire   +4 more sources

Asymptotic Analysis of the Static Bidomain Model for Pulsed Field Cardiac Ablation

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Cardiac arrhythmias are caused by faulty electrical signals in the heart, which lead to chaotic wave propagation and impaired cardiac function. This work focuses on a non‐thermal ablation technique based on electroporation (EP), a promising method for treating arrhythmias, called pulsed field ablation (PFA).
Annabelle Collin, Simone Nati Poltri, Clair Poignard   +2 more
wiley   +1 more source

Probabilistic generalization of Spivey-type relation for degenerate Bell polynomials

AIMS Mathematics
Following Spivey's pivotal discovery of a recurrence relation for Bell numbers, significant research has emerged concerning various generalizations of Bell numbers and polynomials.
Taekyun Kim, Dae San Kim
doaj   +1 more source

On Bell based Appell polynomials

Turkish Journal of Mathematics, 2023
Summary: Recently, several Bell based polynomials such as Bernoulli, Euler, Genocchi and Apostol versions were defined and investigated. The main aim of this paper is to introduce the general family of Bell based Appell polynomials, which includes many new members in addition to the existing ones, and to investigate their properties including ...
Ozarslan, Mehmet Ali, Ozat, Zeynep, ÇEKİM, BAYRAM   +2 more
openaire   +3 more sources

Automated Coregistered Segmentation for Volumetric Analysis of Multiparametric Renal MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aims to develop and evaluate a fully automated deep learning‐driven postprocessing pipeline for multiparametric renal MRI, enabling accurate kidney alignment, segmentation, and quantitative feature extraction within a single efficient workflow. Methods Our method has three main stages.
Aya Ghoul, Cecilia Liang, Isabelle Loster, Lavanya Umapathy, Bernd Kühn, Petros Martirosian, Ferdinand Seith, Sergios Gatidis, Thomas Küstner   +8 more
wiley   +1 more source

Facial Nerve Palsy in Malignant Otitis Externa Hospitalizations: Outcomes and Risk Factors

Otolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To provide a description of the occurrence of facial nerve palsy in hospitalizations for malignant otitis externa and to compare the demographic characteristics, hospital traits, comorbidities, and outcomes between patients with and without palsy. Study Design Retrospective cross‐sectional database study.
Emma R. Thompson, Anthony M. Saad, Sean Z. Haimowitz, Nour H. Abdel‐Azim, Kevin Wong, Andrey Filimonov   +5 more
wiley   +1 more source

Digital Twin Simulations Toolbox of the Nitrogen‐Vacancy Center in Diamond

Advanced Quantum Technologies, EarlyView.
The Nitrogen‐vacancy (NV) center in diamond is a key platform within quantum technologies. This work introduces a Python based digital‐twin of the NV, where the spin dynamics of the system is simulated without relying on commonly used approximations, such as the adoption of rotating frame. The digital‐twin is validated through three different examples,
Lucas Tsunaki, Anmol Singh, Sergei Trofimov, Boris Naydenov   +3 more
wiley   +1 more source

Differential equations associated with generalized Bell polynomials and their zeros

Open Mathematics, 2016
In this paper, we study differential equations arising from the generating functions of the generalized Bell polynomials.We give explicit identities for the generalized Bell polynomials.
Ryoo Seoung Cheon
doaj   +1 more source