Results 31 to 40 of about 58,964 (308)

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Test de interrupción de la humidificación para la diagnosis en pilas PEM [PDF]

open access: yes, 2008
Presentado al III Congreso Nacional de Pilas de Combustible celebrado en Zaragoza (España) del 24 al 26 de septiembre de 2008.[EN]: One of the most demanding research topics related to the Polymer Electrolyte Membrane Fuel Cell concerns its reliability ...
Primucci, Mauricio Ariel   +5 more
core  

Converging combustible and electronic cigarette prices: evidence for Nielsen retail scanner data in the United States from 2011 to 2015

open access: yes, 2018
Background Very little is known about the prices of new non-combustible tobacco products such as electronic cigarettes. Moreover, because of this paucity of data, it is difficult to evaluate the cost for individuals to use e-cigarettes and similar ...
Michal Stoklosa   +4 more
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Amenazas tecnológicas en el cantón La Unión, Cartago, Costa Rica

open access: yesTecnología en Marcha, 2022
Este artículo describe la distribución de las amenazas tecnológicas en el cantón La Unión de Cartago y muestra los radios de máximo alcance por eventuales explosiones en gasolineras.
Jorge Eduardo Rodríguez-Campos   +1 more
doaj   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian   +6 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

open access: yesAdvanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand   +5 more
wiley   +1 more source

Incidencia del aire acondicionado automotriz en el índice de consumo de combustible en vehículo de encendido provocado en una ruta de la Amazonía ecuatoriana

open access: yesIngenius: Revista de Ciencia y Tecnología
En los últimos años, el ambiente se ha visto afectado a causa de la contaminación producida por los vehículos. El presente proyecto de investigación tuvo como objetivo determinar la incidencia del aire acondicionado (A/C) en el índice de consumo de ...
Edilberto Antonio Llanes Cedeño   +3 more
doaj   +3 more sources

Combustion Characteristics of CAI Combustion with Alcohol Fuels [PDF]

open access: yesSAE Technical Paper Series, 2010
<div class="section abstract"><div class="htmlview paragraph">Due to its potential for simultaneous improvement in fuel consumption and exhaust emissions, controlled autoignition (CAI) combustion has been subject to continuous research in the last several years.
Tongroon, M, Zhao, H
openaire   +2 more sources

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