Results 51 to 60 of about 39,293 (293)

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

open access: yesAdvanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li   +12 more
wiley   +1 more source

Einstein–Cartan–Dirac gravity with U(1) symmetry breaking

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Einstein–Cartan theory is an extension of the standard formulation of General Relativity where torsion (the antisymmetric part of the affine connection) is non-vanishing.
Francisco Cabral   +2 more
doaj   +1 more source

Thermodynamically stable asymptotically flat hairy black holes with a dilaton potential

open access: yesJournal of High Energy Physics, 2019
We present a detailed analysis of the thermodynamics of exact asymptotically flat hairy black holes in Einstein-Maxwell-dilaton theory. We compute the regularized action, quasilocal stress tensor, and conserved charges by using a ‘counterterm method ...
Dumitru Astefanesei   +3 more
doaj   +1 more source

Suppression of the large-scale Lorentz force by turbulence

open access: yes, 2012
The components of the total stress tensor (Reynolds stress plus Maxwell stress) are computed within the quasilinear approximation for a driven turbulence influenced by a large-scale magnetic background field.
Battaner   +15 more
core   +1 more source

Holographic Thermal Helicity [PDF]

open access: yes, 2014
We study the thermal helicity, defined in arXiv:1211.3850, of a conformal field theory with anomalies in the context of AdS$_{2n+1}$/CFT$_{2n}$. To do so, we consider large charged rotating AdS black holes in the Einstein-Maxwell-Chern-Simons theory with
Azeyanagi, Tatsuo   +3 more
core   +2 more sources

Chiral SURMOFs for Vibrational Circular Dichroism: Multiscale Modeling and Experimental Insights

open access: yesAdvanced Functional Materials, EarlyView.
The use of solid‐state vibrational circular dichroism (VCD) for MOFs is still somewhat unexplored, and in this work, it is shown that chiral surface‐anchored MOFs (SURMOFs) grown on CaF2 provide an excellent platform for VCD. Experimental results are validated through multiscale modeling, showing strong agreement across multiple spectroscopic ...
Ana C. Fingolo   +9 more
wiley   +1 more source

Regularized Stress Tensor of Vector Fields in de Sitter Space

open access: yesUniverse
We study the Stueckelberg field in de Sitter space, which is a massive vector field with the gauge fixing (GF) term 12ζ(Aμ;μ)2. We obtain the vacuum stress tensor, which consists of the transverse, longitudinal, temporal, and GF parts, and each contains ...
Yang Zhang, Xuan Ye
doaj   +1 more source

Analytical torque calculation and experimental verification of synchronous permanent magnet couplings with Halbach arrays

open access: yesAIP Advances, 2018
This paper presents analytical torque calculation and experimental verification of synchronous permanent magnet couplings (SPMCs) with Halbach arrays.
Sung-Won Seo   +3 more
doaj   +1 more source

Analytical Airgap Field Model and Experimental Validation of Double Sided Hybrid Excited Linear Flux Switching Machine

open access: yesIEEE Access, 2021
Linear Flux Switching Machines (LFSMs) are suitable candidates for long stroke applications as they confines all excitation sources to primary thus leaving completely passive, robust, and low cost secondary.
Noman Ullah   +4 more
doaj   +1 more source

Channel Flow of a Tensorial Shear-Thinning Maxwell Model: Lattice Boltzmann Simulations

open access: yes, 2013
We introduce a nonlinear generalized tensorial Maxwell-type constitutive equation to describe shear-thinning glass-forming fluids, motivated by a recent microscopic approach to the nonlinear rheology of colloidal suspensions.
Batchelor G. K.   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy