Results 81 to 90 of about 914,444 (313)

ON HEROD'S QUADRATIC DIFFERENTIAL SYSTEM WITH INFINITELY MANY UNKNOWNS

open access: yesDemonstratio Mathematica, 2004
The following quadratic differential system with infinitely many unknowns is studied \[ \dot x_n+x_n=\frac1{n+1}\sum^n_{k=0}x_kx_{n-k},\quad n=0,1,2,\dots;\;x_0(0)=1;\;x_1(0)=0;\;x_k(0)=c_k,\;k\geq 2.\tag{1} \] The author studies the question: If the sequence \(\{c_k\}\) is in \(\ell^2\), is the same true for the sequence \(\{x_k(0)\}\) for each \(t ...
openaire   +1 more source

MagPiezo: A Magnetogenetic Platform for Remote Activation of Endogenous Piezo1 Channels in Endothelial Cells

open access: yesAdvanced Functional Materials, EarlyView.
MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández   +7 more
wiley   +1 more source

Singularities of Nonlinear Elliptic Systems

open access: yes, 2013
Through Morrey's spaces (plus Zorko's spaces) and their potentials/capacities as well as Hausdorff contents/dimensions, this paper estimates the singular sets of nonlinear elliptic systems of the even-ordered Meyers-Elcrat type and a class of quadratic ...
Chiarenza F.   +10 more
core   +1 more source

Computation of Affine Covariants of Quadratic Bivariate Differential Systems

open access: yesJournal of Complexity, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim   +6 more
wiley   +1 more source

Global phase portraits of quadratic systems with an ellipse and a straight line as invariant algebraic curves

open access: yesElectronic Journal of Differential Equations, 2015
In this article we study a class of integrable quadratic systems and classify all its phase portraits. More precisely, we characterize the class of all quadratic polynomial differential systems in the plane having an ellipse and a straight line as ...
Jaume Llibre, Jiang Yu
doaj  

Disturbance attenuation problem using a differential game approach for feedback linear quadratic descriptor systems

open access: yesArchives of Control Sciences, 2015
This paper studies the H∞ disturbance attenuation problem for index one descriptor systems using the theory of differential games. To solve this disturbance attenuation problem the problem is converted into a reduced ordinary zero-sum game.
Musthofa Muhammad Wakhid
doaj   +1 more source

Limit cycles for discontinuous quadratic differential switching systems [PDF]

open access: yesAdvances in Difference Equations, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Triplet‐Triplet Annihilation Enhances Photochemical Curing Contrast for Vat‐Based 3D Printing

open access: yesAdvanced Functional Materials, EarlyView.
Triplet–triplet annihilation photopolymerization (TTAP) resins enhance curing contrast for digital light processing (DLP) 3D printing compared to conventional Type I and II photopolymerizations at matched optical densities. By exploiting a superlinear initiation response, TTAP preserves fine details, allowing reliable fabrication of complex structures ...
Connor J. O'Dea   +2 more
wiley   +1 more source

On the Interval Stability of Weak-Nonlinear Control Systems with Aftereffect

open access: yesThe Scientific World Journal, 2016
Sufficient conditions of interval absolute stability of nonlinear control systems described in terms of systems of the ordinary differential equations with delay argument and also neutral type are obtained.
Andriy Shatyrko, Denys Khusainov
doaj   +1 more source

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