Results 111 to 120 of about 6,093,819 (293)

Effective subtraction technique: implementation for Irkutsk Incoherent Scatter Radar

Solar-Terrestrial Physics
For incoherent scatter measurements, the effective subtraction technique is to alternate the duration of amplitude-modulated signals between a pair of consequently radiated pulses.
Tashlykov V. P., Alsatkin S. S., Medvedev A. V., Ratovsky K. G.   +3 more
doaj   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Electron density profile measurements on LHD

Electron density profile measurements on LHD
Several kinds of density diagnostics have been developed and routinely operated to provide density profile information on the Large Helical Device. A 13-channel far-infrared laser interferometer and a two-color millimeter-wave interferometer are used for monitoring the density profile. A CO_2 laser imaging interferometer has been developed for detailed
openaire   +3 more sources

Extension of the RAPDENS control-oriented model with a scrape-off layer particle balance model for ASDEX Upgrade and ITER

Nuclear Fusion
The plasma density is a key parameter in tokamak operation, as it influences plasma performance and stability. Hence, accurate real-time (RT) estimation and control are essential.
D. Kropackova, F. Pastore, O. Kudlacek, T. Ravensbergen, O. Sauter, G. Suárez López, A. Pshenov, E. Fable, D. Silvagni, M. Reisner, the EUROfusion Tokamak Exploitation Team, the ASDEX Upgrade Team   +11 more
doaj   +1 more source

A Model Electron-Density Profile for Noontime Equatorial Lower Ionosphere [PDF]

, 1980
80-85D- and E- region electron-density profiles over Colombo (lat., 06° 54'N) have been deduced by using AI-absorption data at frequencies 2.0, 2.2 and 2.6 MHz spread over half a solar cycle during 1964-68.
Rao, D N Madhusudhana, Victor, P, Ramana, K V V   +2 more
core  

Minimally resolution biased electron-density maps

, 2008
Electron-density maps are calculated by Fourier syntheses with coefficients based on structure factors. Diffraction experiments provide intensities up to a limited resolution; as a consequence, the Fourier syntheses always show series-termination errors.
Altomare A, Rizzi R, Giacovazzo C, Kamel GS, Cuocci C, Moliterni A   +5 more
core   +1 more source

Effects of Mg on Microstructure and Solidification of a Hypereutectic Zn–8 wt.%Al Alloy

Advanced Engineering Materials, EarlyView.
An appreciable set of results involving thermal data, microstructure, chemical composition, and microstructural growth laws is reported for ZnAlMg alloys. Such results demonstrate that ZnAlMg alloys have high potential for applications in automotive self‐lubricating components, batteries, and electrical systems.
Raí B. de Sousa, Jeverton L. Paixão, Daylla S. Silva, Bruno S. Sobral, Mucio D. de Medeiros, José E. Spinelli, Bismarck L. Silva   +6 more
wiley   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

Electron Density Profiles in the Ionosphere [PDF]

Nature, 1958
openaire   +1 more source