Results 151 to 160 of about 76,408 (300)

The effect of object-centered instructions in Cartesian and polar coordinates on saccade vector. [PDF]

J Vis, 2017
Edelman JA, Mieses AM, Konnova K, Shiu D.   +3 more
europepmc   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Visual processing of form in human: threshold contrast curves to concentrically symmetric patterns / Processamento visual da forma em humanos: curvas de limiar de contraste para padrões circularmente simétricos

Psicologia: Reflexão e Crítica, 2004
The aim of this work was to measure contrast sensitivity curves to concentrically symmetric patterns in a system of polar coordinates. We measured the contrast thresholds to sine wave gratings, radial frequencies and coupled radial/angular frequencies ...
Natanael Antonio dos Santos, Maria Lúcia de Bustamante Simas, Renata Maria Toscano Barreto Lyra Nogueira   +2 more
doaj  

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Numerical Calculation of Meridional Path Line and Optimum Approximation with Multi-segment Arc of Hydrodynamic Torque Converter

Jixie chuandong, 2017
The modeling precision of hydraulic torque converter is investigated and various factors affect the modeling precision are analyzed,a new high precision modeling method is proposed.
Liu Shiping, Zhang Zongfu, Zhang Zhihua, Jia Jiantao   +3 more
doaj  

Human Gut Bacteria and Lipidic Nanoparticles: Particle Composition Predicts Structural Transformation and Bacterial Biocompatibility

Advanced Functional Materials, EarlyView.
Lipidic nanoparticles (LNPs) were incubated with 21 gut bacteria frequently associated with the human microbiome. SAXS revealed that ∼75% of tested species induced structural transformations in monoolein LNPs, whereas phytantriol and phospholipid formulations remained unaffected.
Jonathan Caukwell, Emily L. Gulliver, Livia Salvati Manni, Frithjof Herb, Caitlin Welsh, Samuel C. Forster, Andrew J. Clulow, Wye‐Khay Fong   +7 more
wiley   +1 more source

Building a symbolic computer algebra toolbox to compute 2D Fourier transforms in polar coordinates. [PDF]

MethodsX, 2015
Dovlo E, Baddour N.
europepmc   +1 more source

Polar - coordinates impedance meter with simulated resonance

, 2005
The paper presents an impedance meter based on the effect of simulated resonance. The series resonance circuit supplied with an polar-coordinates impedance simulator, an current signal generator and an phase-sensitive indicator are used in measuring ...
NASTAS, Vitalie, NASTAS, Alexandru, CAZAC, Artur   +2 more
core  

SO(2,2) representations in polar coordinates and Pöschl-Teller potentials

This work is devoted to show the interest of polar coordinates in the description of some unitary irreducible representations (or uir’s) of the SO(2, 2) group where the support space are functions on the three dimensional pseudosphere H2,2R .
Blázquez Villalobos, María del Carmen, Negro Vadillo, Francisco Javier   +1 more
core   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source