Results 51 to 60 of about 1,993,282 (243)
Shadow cast by rotating braneworld black holes with a cosmological constant [PDF]
, 2018 In this article, we study the shadow produced by rotating black holes with a tidal charge in a Randall-Sundrum braneworld model, with a cosmological constant.
Eiroa, Ernesto Fabian +1 more
core +2 more sources
Spherical and Aspherical Lenses for Boosting the Performance of Terahertz Imaging Systems
Advanced Photonics Research, EarlyView.This study investigates the enhancement of terahertz (THz) detection through the terajet effect using mesoscale dielectric lenses of various geometries. Spherical, aspherical, and cubic polytetrafluoroethylene lenses are evaluated at 0.15 and 0.3 THz, demonstrating significant improvements in responsivity and noise reduction.
El Hadj Abidi +7 more
wiley +1 more source
Ambient Air Deposition Allows Reaching Record Light Use Efficiency in FAPbI3 Perovskite Solar Cells
Advanced Science, EarlyView.Ambient air deposition of Formamidinium Lead Iodide (FAPbI3) perovskite enables an increase in average visible transmittance (AVT) value by up to 40%, while also enhance the optoelectronic quality of the film, showing fewer defects and a superior morphology. As a result, semi‐transparent devices achieve a record light use efficiency (LUE) value of 4.2%,
Nadir Vanni +13 more
wiley +1 more source
Angewandte Chemie, EarlyView.The widely used [2+2] cycloaddition‐retroelectrocyclization reaction between tetracyanoquinodimethane (TCNQ) and an activated alkyne has been shown to occur with “inverted” regiochemistry to give exclusive formation of an unexpected regioisomer. A combined experimental and theoretical study helped unravel the peculiar reaction mechanism underlying the ...
Oscar Fernández‐Vera +5 more
wiley +2 more sources
Matrix Elements of Electroweak Penguin Operators in the 1/Nc Expansion
, 1999 It is shown that the K -> pi pi matrix elements of the four-quark operator Q_7, generated by the electroweak penguin-like diagrams of the Standard Model, can be calculated to first non-trivial order in the chiral expansion and in the 1/Nc expansion ...
Eduardo De Rafael A +3 more
core +2 more sources
Bragg spectroscopy for measuring Casimir-Polder interactions with Bose-Einstein condensates above corrugated surfaces [PDF]
, 2010 We propose a method to probe dispersive atom-surface interactions by measuring via two-photon Bragg spectroscopy the dynamic structure factor of a Bose-Einstein condensate above corrugated surfaces. This method takes advantage of the condensate coherence
Calzetta, Esteban Adolfo +2 more
core +2 more sources
Advanced Electronic Materials, EarlyView.The synchronization ability of vortex spin‐torque nano‐oscillators is examined across three dynamical regimes: the gyrotropic mode, the dynamic C‐state, and a transition regime. The transition regime exhibits the strongest synchronization ability, and it can be driven into a dynamic state with no ability to synchronize (dynamic C‐state) by slightly ...
Miguel Romera +11 more
wiley +1 more source
Heavy quark mass effects in parton-to-kaon hadronization probabilities [PDF]
, 2018 We examine the relevance of the heavy quarks masses in the perturbative QCD description of hard interactions where charged kaons are produced in the final state.
Epele, Manuel +2 more
core +3 more sources
Supercapacitors: An Emerging Energy Storage System
Advanced Energy and Sustainability Research, EarlyView.This review explores the principles, advancements, and material innovations in supercapacitor technology, covering pseudocapacitors, double‐layer capacitors, electrolytes, and nanostructured materials like carbon nanotubes, MXenes, and graphene. It examines hybrid systems bridging capacitors and batteries, promising applications in wearable devices ...
Muhammad Faisal Iqbal +7 more
wiley +1 more source
Interferences in laser assisted photoionization of diatomic molecules [PDF]
, 2014 We analyze interference effects in photoionization of H+ 2 molecular targets in laser assisted photoionization. By means of a simple model, we obtain observables for the reaction and we compare them with previous results obtained with more elaborated ...
Boll, Diego Iván René +1 more
core +2 more sources