Results 41 to 50 of about 456,860 (303)

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

open access: yesAdvanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser   +4 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Investigation of Electric Field Tunable Optical and Electrical Characteristics of Zigzag and Armchair Graphene Nanoribbons: An Ab Initio Approach

open access: yesNanomaterials
Graphene nanoribbons (GNRs), categorized into zigzag and armchair types, hold significant promise in electronics due to their unique properties. In this study, optical properties of zigzag and armchair GNRs are investigated using density functional ...
Recep Emir   +4 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Democracy and growth in pre-industrial countries

open access: yesBrazilian Journal of Political Economy
This paper distinguishes three types of countries (rich, middle-income, and pre-industrial) and focus on the latter, which, in contrast to the other two, didn’t complete their industrial and capitalist revolutions.
LUIZ CARLOS BRESSER-PEREIRA
doaj   +1 more source

Open public service reform should not be a cover for serving corporate interests: mutualism and its fellows could instead serve to enhance industrial democracy [PDF]

open access: yes, 2012
Alex Marsh argues that to embrace the call to go further and faster on public service reform would play into the hands of corporate actors and lead to a further concentration of economic power.
Marsh, Alex
core  

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

open access: yesAdvanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah   +9 more
wiley   +1 more source

Structure–Transport–Ion Retention Coupling for Enhanced Nonvolatile Artificial Synapses

open access: yesAdvanced Functional Materials, EarlyView.
Nitrogen incorporation into the conjugated backbone of donor–acceptor polymers enables efficient charge transfer and deep ion embedding in organic electrochemical synaptic transistors (OESTs). This molecular‐level design enhances non‐volatile synaptic properties, providing a new strategy for developing high‐performance and reliable neuromorphic devices.
Donghwa Lee   +5 more
wiley   +1 more source

Levantes urbanos na França Urban uprisings in France

open access: yesTempo Social, 2006
A onda de violência que atingiu a França em novembro de 2005 não pode ser explicada apenas como reflexo da crise de suas periferias urbanas. Dois outros níveis de análise devem ser também considerados: o da nação como limite da democracia, que a ...
Angelina Peralva
doaj   +1 more source

Reforms, entry and productivity: Some evidence from the Indian manufacturing sector [PDF]

open access: yes, 2006
It is now stylized that, while the impact of ownership on firm productivity is unclear, product market competition can be expected to have a positive impact on productivity, thereby making entry (or contestability of markets) desirable.
Aghion   +28 more
core   +1 more source

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