Results 121 to 130 of about 1,584,853 (313)
International Journal of Applied Mechanics and Engineering, 2016 In this paper, we investigate the combined effect of internal heating and time periodic gravity modulation in a viscoelastic fluid saturated porous medium by reducing the problem into a complex non-autonomous Ginzgburg-Landau equation.
B.S. Bhadauria +4 more
doaj +1 more source
"Comparing alternative methods to estimate gravity models of bilateral trade" [PDF]
The gravity equation has been traditionally used to predict trade flows across countries. However, several problems related with its empirical application still remain unsolved.
Estrella Gómez Herrera
core
Advanced Materials, EarlyView.A soap‐film inspired strategy enables the fabrication of ultrathin yet robust GelMA‐PAAm membranes for breathing lung culture. The hydrogel membrane supports long‐term cyclic deformation under air‐liquid interface conditions, enabling physiologically relevant breathing motions of engineered lung tissue culture. ABSTRACT Breathing continuously stretches
Yunji Lee +9 more
wiley +1 more source
Stoneley waves in a non-homogeneous orthotropic granular medium under the influence of gravity
International Journal of Mathematics and Mathematical Sciences, 2005 The aim of this paper is to investigate the Stoneley waves in a non-homogeneous orthotropic granular medium under the influence of a gravity field. The frequency equation obtained, in the form of a sixth-order determinantal expression, is in agreement ...
S. M. Ahmed
doaj +1 more source
Gravity with zeros: estimating trade potential of CIS countries [PDF]
Arguably, the Commonwealth of Independent States (CIS) countries are not as integrated into the world markets as the EU countries or Southeast Asian countries.
Oleksandr Shepotylo
core
Advanced Materials, EarlyView.We mechanically program liquid crystal elastomer coatings as a stimuli‐responsive and digitally addressable platform for refreshable tactile displays; we validate the perceptual performance of our dynamic device matches conventional static tactile media.
Tom Bruining +9 more
wiley +1 more source
Augmented gravity model: An empirical application to Mercosur- European trade flows [PDF]
This paper applies the gravity trade model to assess Mercosur-European Union trade, and trade potential following the agreements reached recently between both trade blocks.
Felicitas Nowak-Lehmann D. +1 more
core
Advanced Materials, EarlyView.Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi +14 more
wiley +1 more source
Fast Hydrogel Micro‐Actuators Driven by Electric Fields
Advanced Materials, EarlyView.We report the fabrication of chemically programmable electroactuating microstructures through the first integration of two‐photon polymerization with electrically actuated gelatin methacrylate‐based hydrogels. By tailoring the charge of the polymer network, we demonstrate programmable polarity‐dependent bending, enabling microstructures that ...
Annaël Sort‐Montenegro +6 more
wiley +1 more source
Bogomol’nyi-like equations in gravity theories
The European Physical Journal CAbstractUsing the Bogomol’nyi–Prasad–Sommerfield Lagrangian method, we show that gravity theory coupled to matter in various dimensions may possess Bogomol’nyi-like equations, which are first-order differential equations, satisfying the Einstein equations and the Euler–Lagrange equations of classical fields (U(1) gauge and scalar fields). In particular
openaire +3 more sources