Results 61 to 70 of about 741,369 (310)

Entering the Strong Coupling Regime in Conventional Organic Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Organic solar cells convert light into fossil‐free energy, yet they still cannot compete with their silicon counterparts. Strong exciton‐photon coupling can ameliorate some properties of organic solar cells, but it requires additional mirrors that diminish light absorbance. Here, mirror‐free strong exciton‐photon coupling is implemented in conventional
Nicola Peruffo   +4 more
wiley   +1 more source

Quatro abordagens para o movimento browniano

open access: yesRevista Brasileira de Ensino de Física
A "dança" aleatória de pequenas partículas em suspensão num líquido, um fenômeno conhecido como movimento browniano, foi primeiramente explicado por Einstein na sua famosa tese de doutorado.
J.M. Silva, J.A.S. Lima
doaj   +1 more source

Su Vero e Falso in senso gravitazionale, ovvero di virtuosismi virtuali [PDF]

open access: yesS&F_scienzaefilosofia.it, 2017
On Truth and Fake in a Gravitational Sense, or about virtual Virtuosities The discovery of the existence of gravitational waves not only represents the experimental proof of Einstein’s theory, but also an improvement of the world of Physics.
AMODIO, PAOLO
doaj  

Mass and angular momenta of Kerr anti-de Sitter spacetimes in Einstein-Gauss-Bonnet theory

open access: yes, 2004
We compute the mass and angular momenta of rotating anti-de Sitter spacetimes in Einstein-Gauss-Bonnet theory of gravity using a superpotential derived from standard Noether identities.
Cai R-G   +9 more
core   +2 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Distances of qubit density matrices on Bloch sphere

open access: yes, 2011
We recall the Einstein velocity addition on the open unit ball $\B$ of $\R^{3}$ and its algebraic structure, called the Einstein gyrogroup. We establish an isomorphism between the Einstein gyrogroup on $\B$ and the set of all qubit density matrices ...
Einstein A.   +3 more
core   +1 more source

Self‐Assembled Membranes for High Ion Selectivity and Proton Blocking in Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Phase‐separated alkyl poly(vinylimidazolium) membranes exhibit exceptional ionic conductivity, counter‐ion selectivity, and proton‐blocking ability by forming stable micro/macrophase‐separated domains. This design overcomes the conductivity–selectivity trade‐off in conventional ion‐exchange membranes (IEMs), offering a new paradigm for high‐performance
Min Gyu Shin   +2 more
wiley   +1 more source

ρ-Einstein Solitons on Warped Product Manifolds and Applications

open access: yesJournal of Mathematics, 2022
The purpose of this research is to investigate how a ρ-Einstein soliton structure on a warped product manifold affects its base and fiber factor manifolds. Firstly, the pertinent properties of ρ-Einstein solitons are provided.
Nasser Bin Turki   +4 more
doaj   +1 more source

Einstein's grandchildren [PDF]

open access: yesEMBO reports, 2010
The new German government has boldly promised to “lead Germany to first place in the world in education, science and research.” Howy Jacobs explores this promise and whether it will lure Einstein's grandchildren back across the pond.
openaire   +2 more sources

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