Results 91 to 100 of about 25,082,508 (331)

Symmetric Hyperbolic System in the Ashtekar Formulation [PDF]

open access: yes, 1998
We present a first-order symmetric hyperbolic system in the Ashtekar formulation of general relativity for vacuum spacetime. We add terms from constraint equations to the evolution equations with appropriate combinations, which is the same technique used
G. Yoneda, H. Shinkai
semanticscholar   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

open access: yesAdvanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell   +3 more
wiley   +1 more source

Infrared metamaterial by RF magnetron sputtered ZnO/Al:ZnO multilayers

open access: yesAIP Advances, 2018
Hyperbolic metamaterials create artificial anisotropy using metallic wires suspended in dielectric media or alternating layers of a metal and dielectric (Type I or Type II).
Kevin C. Santiago   +4 more
doaj   +1 more source

A note on laminations with hyperbolic leaves

open access: yes, 2017
We prove that each solenoidal lamination with leaves isometric to the real-hyperbolic n-space and transitive homeomorphism group, is homeomorphic to the inverse limit of the system of finite covers of a compact hyperbolic n-manifold.Comment: 5 ...
Kapovich, Michael
core  

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim   +4 more
wiley   +1 more source

On Weakly Hyperbolic Iterated Function Systems

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2016
Updated version.
Arbieto, Alexander   +2 more
openaire   +3 more sources

Mapping Nanoscale Protein‐Corona Kinetics of DoE‐Optimized Perfluorocarbon Encapsulated‐PLGA Nanoparticles by In Situ, Time‐Resolved Synchrotron SAXS

open access: yesAdvanced Healthcare Materials, EarlyView.
A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph   +11 more
wiley   +1 more source

Transition from hyperbolicity to ellipticity for a p-system with viscosity

open access: yesElectronic Journal of Differential Equations, 2019
In this article we consider a viscous regularization of a p-system with a Van der Waals pressure law, which presents both hyperbolic and elliptic zones.
Marta Strani
doaj  

STRONGLY HYPERBOLIC SYSTEMS IN GENERAL RELATIVITY [PDF]

open access: yesJournal of Hyperbolic Differential Equations, 2004
We discuss several topics related to the notion of strong hyperbolicity which are of interest in general relativity. After introducing the concept and showing its relevance we provide some covariant definitions of strong hyperbolicity. We then prove that if a system is strongly hyperbolic with respect to a given hypersurface, then it is also strongly ...
openaire   +2 more sources

A Data Driven Review of In Vitro Electrical and Mechanical Stimulation for Post‐Acute Phase Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how in vitro electrical and mechanical stimulation modulates wound healing in fibroblasts and keratinocytes. Analyzing over 560 experimental data points, we relate stimulation parameters to proliferation and migration outcomes, evaluate platform designs, and highlight the need for multi‐parameter optimization to advance targeted ...
Matthew K. Burgess   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy