Results 91 to 100 of about 5,633,210 (244)

Omega Psi Phi, 1984

open access: yes, 1984
Black and white photograph of members of the Omega Psi Phi fraternity scanned from the 1984 Phi Psi Cli, page ...
Phi Psi Cli Staff
core  

Moiré Phase Mapping in Twisted Bilayer Liquid Crystals with Reconfigurable Light Polarization States

open access: yesAdvanced Materials, EarlyView.
Twisted bilayer liquid crystals are developed by vertical stacking assembly of two liquid crystals having designer domains and optical properties. These moiré‐symmetry, twisted liquid crystals demonstrate reconfigurable polarization states, moiré patterns and phases controlled by twist angles, providing a route to design active optical devices for ...
Jordan A. Wilson   +7 more
wiley   +1 more source

Psi Chi Journal Editorial transition

open access: yes, 2016
As I write these lines, Psi Chi Journal of Psychological Research has fully transitioned to the editorial stewardship of Dr. Debi Brannan. It is a bittersweet time; I treasured deeply the tasks of editing the Psi Chi Journal.
Brannan, Debi   +3 more
core   +1 more source

Light‐Programmed Localized Supersaturation Enables Ambient Aqueous Synthesis of Highly Crystalline Metal–Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
In the proposed model, a photoinduced nanoreactor uses Cu2O self‐photooxidation to generate localized supersaturation. A metastable supersaturation state first forms a shell, creating a spatially confined environment that restricts reactant exchange; continued Cu release then drives the local environment toward a labile regime that favors predominantly
Yongdeok Ahn   +5 more
wiley   +1 more source

Chebyshev approximations for the psi function

open access: yes, 1973
Rational Chebyshev approximations to the psi (digamma) function are presented for .5 ≦ x ≦ 3.0 .5 \leqq x \leqq 3.0 , and 3.0 ≦ x 3.0 \leqq x . Maximum relative
W. J. Cody   +2 more
core   +1 more source

A Thermoreversible Gelation Pathway to Plant Cuticle‐Inspired Biopolymer Aerogel Monoliths Based on Network‐Spherulitic Crystal Assemblies

open access: yesAdvanced Materials, EarlyView.
To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto   +10 more
wiley   +1 more source

On the $psi$-dichotomy for homogeneous linear differential equations

open access: yesElectronic Journal of Differential Equations, 2006
In this article we present some conditions for the $psi$-dichotomy of the homogeneous linear differential equation $x'=A(t)x$. Under our condition every $psi$-integrally bounded function $f$ the nonhomogeneous linear differential equation $x'=A(t)x ...
Pham Ngoc Boi
doaj  

Ionic Liquid (IL) Compatibilization of Macropore‐Infused Nanocomposite Emulsion Thermosets (MINETs) for Structural Ion Transport

open access: yesAdvanced Materials Interfaces, EarlyView.
Macropore‐infused nanocomposite emulsion thermosets (MINETs) offer tunable multifunctionality due to their incorporation of structural resin, functional nanoparticles, and working fluid stabilized by surfactant. Here we show that if ionic liquid working fluids are introduced, structural capacitive (conductive particles) or separator (insulating ...
Bryan Llumiquinga   +6 more
wiley   +1 more source

On a new class of operators from the Bloch-type space into H ∞ ( B X ) $H^{\infty}(\mathbb{B}_{X})$ of infinite dimensional bounded symmetric domains

open access: yesJournal of Inequalities and Applications
Under certain assumptions on the symbols, we give a necessary and sufficient condition for the boundedness of a new class of operators, T ψ 1 , ψ 2 , ψ 3 , φ $T_{\psi _{1}, \psi _{2}, \psi _{3}, \varphi}$ , mapping from the Bloch-type space B ( B X ...
Xiaoman Liu, Yongmin Liu
doaj   +1 more source

Amphiphilic Non‐Isocyanate Polyurethane Coatings With Tunable Antifouling and Fouling‐Release Performance: A Log‐Ratio Assessment Framework

open access: yesAdvanced Materials Interfaces, EarlyView.
Amphiphilic non‐isocyanate polyurethane (NIPU) coatings containing reactive hydrophobic poly(dimethylsiloxane) (PDMS) and hydrophilic methoxy poly(ethylene glycol) (MPEG) prepolymers for marine antifouling (AF) and fouling‐release (FR) applications were investigated. The coatings were evaluated with a set of representative marine foulants.
Nastaran Shahzadeh   +7 more
wiley   +1 more source

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