Results 171 to 180 of about 3,250,523 (299)

THEORETICAL ANALYSIS OF CONCENTRATION POLARIZATION EFFECT ON VOC REMOVAL BY PERVAPORATION

open access: yes, 2008
Pervaporation is an innovative membrane-based separation technology for volatile organic compound (VOC) removal from contaminated groundwater. Concentration polarization is a process phenomenon occurring in pervaporation and several other membrane-based ...
L. M. Vane, M. Peng, S. X. Liu
core  

Ga–O–Pt Electronic Bridges Bypass Single‐Site Constraints for pH‐Universal Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
Well‐defined oxygen‐bridged Ga–O–Pt catalysts are constructed for pH‐universal hydrogen evolution, highlighting the relationship between oxygen‐bridged electronic coupling, rapid surface hydrogen redistribution, and superior catalytic performance. ABSTRACT Single‐site descriptors often fail to capture hydrogen evolution on heterometallic interfaces ...
Rui Wang   +8 more
wiley   +1 more source

Ordinal Variables and the Measurement of Polarization [PDF]

open access: yes
This paper aims at proposing measures of polarization for the distribution of a variable when information on the latter is only ordinal. The measures proposed are borrowed from the recent literature on the measurement of segregation.
FUSCO Alessio, SILBER Jacques
core  

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

Bi-Polarization Comparisons [PDF]

open access: yes
This note provides simple tests for first-order bi-polarization orderings of distributions of living standards. In doing so, the paper also offers an ethical basis and an interpretation for the common use of some simple measures of distances from the ...
Jean-Yves Duclos, Damien Echevin
core  

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh   +4 more
wiley   +1 more source

Income distribution and income sources in Uruguay [PDF]

open access: yes
This paper is concerned with changes in the distribution of income sources in Uruguay after the late eighties. An apparent stability in the distribution of total incomes is hiding deep transformations affecting the generation of that income.
Máximo Rossi, Carlos Gradín
core  

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