Results 31 to 40 of about 31,073 (195)

Documenting the History of Inca Precious Metal Production using Geochemical Techniques from Lake Sediments in the Andahuaylas Region of Peru [PDF]

open access: yes, 2011
The process of studying heavy metal concentrations in lake sediments in order to reconstruct pollution history has been used in a variety of environments and locations.
Kane, Molly Mae
core   +1 more source

In-wheel axial-flux SRM drive for light electric vehicles [PDF]

open access: yes, 2018
Revenues from global sales of light electric vehicles are expected to grow from $ 9.3 billion in 2017 to $ 23.9 billion in 2025. In order to boost this growth electric drives with better features and lower costs have to be developed.
Andrada Gascón, Pedro   +5 more
core  

Superconductivity of MI(MII0.5, Si0.5)2 (MI=Sr and Ba, MII=Al and Ga), ternary silicides with the AlB2-type structure

open access: yes, 2002
Ternary silicides MI(MII0.5, Si0.5)2 (MI=Sr and Ba, MII=Al and Ga) were prepared by Ar arc melting. Powder X-ray diffraction indicates that they have the AlB2-type structure, in which Si and MII atoms are arranged in honeycomb layers and MI atoms are ...
Bodak   +25 more
core   +1 more source

The new very small angle neutron scattering spectrometer at Laboratoire Leon Brillouin [PDF]

open access: yes, 2007
The design and characteristics of the new very small angle neutron scattering spectrometer under construction at the Laboratoire Leon Brillouin is described. Its goal is to extend the range of scattering vectors magnitudes towards 2x10{-4} /A. The unique
Brulet, Annie   +3 more
core   +4 more sources

Significance of finite difference approach for application of Cattaneo-Christov theory conveying radiative ternary-hybrid nanofluids flow

open access: yesHeliyon
This paper investigates the characteristics of ternary-hybrid nanoliquid for time-dependent Darcy-Forchheimer flow. Formulation is based for mixture of water subject to ternary nanoparticles with different shapes like (platelet, spherical and cylindrical)
Saira Naz, T. Hayat, Shaher Momani
doaj   +1 more source

MgB2 conductors for dc and ac applications

open access: yes, 2001
The paper presents discussion on up to date results on MgB2 conductors from the point of view of their future dc and ac applications. Basic physical parameters of MgB2 compound relevant to conductors are introduced.
B.A. Glowacki   +15 more
core   +1 more source

High temperature heat flux sensor with ITO/In2O3 thermopile for extreme environment sensing

open access: yesMicrosystems & Nanoengineering
Hypersonic vehicles and aircraft engine blades face complex and harsh environments such as high heat flow density and high temperature, and they are generally narrow curved spaces, making it impossible to actually install them for testing. Thin-film heat
Helei Dong   +3 more
doaj   +1 more source

Powder metallurgical materials and processes for soft magnetic applications [PDF]

open access: yes, 2018
For many designers of electrical machines, the term “soft magnetic materials” automatically means laminated electrical sheet. This is unfortunate, since for many applications, particularly at low frequencies, laminated sheet is rarely the best material ...
Dougan, Mark J.
core  

Progress in the development of industrial scale tungsten fibre-reinforced composite materials

open access: yesNuclear Materials and Energy
Currently, tungsten fibre-reinforced (Wf) composites are regarded as promising materials for plasma-facing components of future magnetic confinement fusion devices.
J. Riesch   +16 more
doaj   +1 more source

Directed Irradiation Synthesis as an Advanced Plasma Technology for Surface Modification to Activate Porous and “as-received” Titanium Surfaces [PDF]

open access: yes, 2019
For the design of smart titanium implants, it is essential to balance the surface properties without any detrimental effect on the bulk properties of the material.
Allain, Jean Paul   +10 more
core   +1 more source

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