Results 131 to 140 of about 380,078 (313)

Positive periodic solutions of neutral functional differential equations with a parameter and impulse

open access: yesElectronic Journal of Differential Equations, 2008
In this paper, we consider first-order neutral differential equations with a parameter and impulse in the form of $$displaylines{ frac{d}{dt}[x(t)-c x(t-gamma)]=-a(t)g(x(h_1(t)))x(t)+lambda b(t) fig(x(h_2(t))ig),quad t eq t_j;cr Delta ig[x(t)-c x(t ...
Xuanlong Fan, Yongkun Li
doaj  

“Cone-in-Cone.” [PDF]

open access: yesGeological Magazine, 1886
openaire   +1 more source

Chiral Microneedle Arrays With Terahertz Chiroptical Activity With Chiral‐Plasmon‐Chiral‐Phonon Resonance

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee   +6 more
wiley   +1 more source

Cone family genealogy 1755-1974

open access: yes
Contains the genealogy of the Cone family of Baltimore, a prominent local family engaged in various commercial pursuits. Herman Cone arrived in Baltimore from Germany in 1845Contains also detailed data on the Guggenheimer, Skutch, Frank, Cohen, Ambach ...
Cone, Sydney M 1904-
core  

Positive solutions to boundary-value problems of p-Laplacian fractional differential equations with a parameter in the boundary

open access: yesElectronic Journal of Differential Equations, 2012
In this article, we consider the following boundary-value problem of nonlinear fractional differential equation with $p$-Laplacian operator $$displaylines{ D_{0+}^eta(phi_p(D_{0+}^alpha u(t)))+a(t)f(u)=0, quad 0<t<1, cr u(0)=gamma u(xi)+lambda,
Zhenlai Han   +3 more
doaj  

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

open access: yesAdvanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief   +12 more
wiley   +1 more source

Rod–cone interactions and the temporal impulse response of the cone pathway

open access: yes, 2008
Dark-adapted rods suppress cone-mediated flicker detection. This study evaluates the effect that rod activity has on cone temporal processing by investigating whether rod mediated suppression changes the cone pathway impulse response function, regardless
Cao, Dingcai   +2 more
core   +1 more source

Existence of positive periodic solutions for neutral functional differential equations

open access: yesElectronic Journal of Differential Equations, 2006
We find sufficient conditions for the existence of positive periodic solutions of two kinds of neutral differential equations. Using Krasnoselskii's fixed-point theorem in cones, we obtain results that extend and improve previous results.
Zhixiang Li, Xiao Wang
doaj  

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

open access: yesAdvanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz   +11 more
wiley   +1 more source

Existence of positive symmetric solutions for an integral boundary-value problem with phi-Laplacian operator

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we show the existence of three positive symmetric solutions for the integral boundary-value problem with $\phi$-Laplacian $$\displaylines{ (\phi(u'(t)))'+f(t,u(t),u'(t))=0,\quad t\in[0,1],\cr u(0)=u(1)=\int_0^1u(r)g(r)\,dr ...
Yonghong Ding
doaj  

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