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Combustibles nucléaires [PDF]

open access: yes, 2008
International audienceLe combustible est l'un des éléments essentiels d'un réacteur nucléaire. En son sein ont lieu les réactions nucléaires de fission des atomes lourds, uranium et plutonium. Il est au cœur du réacteur, mais également au cœur du système
Bonin, Bernard   +2 more
core   +1 more source

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

open access: yesAdvanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

Elección del gas natural como combustible para cocinar en Lima Metropolitana

open access: yesRevista de Análisis Económico y Financiero, 2020
This research evaluates the growing choice of Natural Gas by households in Metropolitan Lima as fuel for cooking. For this purpose, information from the National Household Survey for the period 2004 to 2018 is used and Multinomial Logit models are ...
Juan Manuel Rivas Castillo
doaj   +1 more source

Estudio comparativo entre los combustibles tradicionales y las nuevas tecnologías energéticas para la propulsión de vehículos destinados al transporte [PDF]

open access: yes, 2004
En el presente proyecto se recogen una serie de propiedades y características sobre los combustibles tradicionales derivados del petróleo, gasolina y gasoil, y sobre los combustibles alternativos que tienen posibilidades de sustituirlos o complementarlos
Martín Martín, Francisca   +1 more
core  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Análisis de un generador de HHO de celda seca para su aplicación en motores de combustión interna

open access: yesRevista UIS Ingenierías, 2018
Los motores de combustión interna a gasolina tienen conocidos problemas de eficiencia térmica y alto índice de emisión de gases contaminantes. Por otro lado, existen procesos químicos y eléctricos que han permitido obtener fuentes de energía limpia del ...
Jonathan Eduardo González Gil   +2 more
doaj   +1 more source

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

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

La regulación de precios en el mercado de combustibles en Argentina (1989-2015): del libre mercado a una estructura oligopólica

open access: yesApuntes del CENES, 2020
La crisis económica de finales de la década de 1980 implicó un cambio estructural en la economía argentina, del cual el complejo hidrocarburífero no estuvo exento.
Mariano Barrera
doaj   +1 more source

Estudio de la combustión en un motor CFR con AVL BOOST [PDF]

open access: yes, 2017
Este trabajo es relevante en el ámbito del desarrollo de nuevos combustibles para el transporte. Se trata de estudiar los parámetros de la combustión de diferentes combustibles en condiciones variables de dosado, relación de compresión y avance al ...
Casanova Kindelán, Jesús   +2 more
core  

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