Results 41 to 50 of about 28,867 (162)

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

South-north asymmetry of field-aligned currents in the magnetotail observed by Cluster [PDF]

, 2010
We statistically investigated features of the field-aligned current (FAC) distribution in plasma sheet boundary layers between 17 and 19 RE in the magnetotail using the curlometer technique to calculate the current from four-point magnetic field ...
Cheng, Z. W., Dandouras, I., Dunlop, M., Fazakerley, A., Grocott, A., Kistler, L. M., Lahiff, A. D., Lester, M., Liu, Z. X., Lucek, E., Lui, A. T. Y., Mouikis, C., Pu, Z. Y., Rème, H., Shen, C., Shi, J. K., Taylor, M. G. G. T., Torkar, K., Volwerk, M., Walsh, A. P., Zhang, T. L.   +20 more
core   +1 more source

Diamond 2D/3D Printing Technology: Bringing Scintillating Performance to Functional Materials and Their Applications

Advanced Materials Technologies, EarlyView.
This review highlights advances in printing with nano‐ and microparticulate diamond for applications such as sensors, thermal management, machining tools, and biointerfaces. By covering screen, inkjet, microcontact, and 3D printing techniques, it outlines how diamond particles can be integrated into composite materials and functional devices, while ...
Simona Baluchová, Josephus G. Buijnsters   +1 more
wiley   +1 more source

Revision of empirical electric field modeling in the inner magnetosphere using Cluster data [PDF]

, 2013
Using Cluster data from the Electron Drift (EDI) and the Electric Field and Wave (EFW) instruments, we revise our empirically-based, inner-magnetospheric electric field (UNH-IMEF) model at 22.662 mV/m; K-p\u3c1, 1K(p)\u3c2, 2K(p)\u3c3, 3K(p)\u3c4, 4K(p ...
Khotyaintsev, Y. V., Lindqvist, P. A., Matsui, Hiroshi, Spence, Harlan E.   +3 more
core   +2 more sources

Transients in oxygen outflow above the polar cap as observed by the Cluster spacecraft [PDF]

Annales Geophysicae, 2008
Abstract. Oxygen ion outflow associated with the cusp and cleft give rise to persistent oxygen ion beams which can be observed over the polar cap. For high altitude spacecraft such as Cluster these beams are often observed for several hours on each occasion. This allows for a study of typical temporal structures on the time scale of minutes.
H. Nilsson, M. Waara, O. Marghitu, O. Marghitu, M. Yamauchi, R. Lundin, H. Rème, J.-A. Sauvaud, I. Dandouras, E. Lucek, L. M. Kistler, B. Klecker, C. W. Carlson, M. B. Bavassano-Cattaneo, A. Korth   +14 more
openaire   +5 more sources

Predicting Performance of Hall Effect Ion Source Using Machine Learning

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

Locations of Auroral Kilometric Radiation Bursts Inferred From Multi-Spacecraft Wideband Cluster VLBI Observations i: Description of Technique and Initial Results

, 2003
The Cluster Wideband Data instrument has been used to determine the locations of auroral kilometric radiation (AKR) using very long baseline interferometry.
Alexander, Alexander, Alexander, Barton, Burns, Ergun, Feldstein, Frank, Gaelzer, Gaelzer, Gallagher, Gallagher, Gurnett, Gurnett, Huff, Kaiser, Kaiser, Kurth, Louarn, R. L. Mutel, Schreiber, Wu   +21 more
core   +1 more source

SARchaeological Prospection: Synthetic Aperture Radar for the Reconstruction and Mapping of Temperate Floodplain Environments

Archaeological Prospection, EarlyView.
ABSTRACT Temperate river floodplains present a significant challenge for archaeologists, as cultural and palaeoenvironmental remains are often difficult to locate but can be exceptionally well preserved, especially where groundwater levels are high. In these alluvial environments, the deposition of thick, fine‐grained sediments has potential to deeply ...
Nicholas Crabb, Chris Carey, Andy J. Howard, Matthew Brolly   +3 more
wiley   +1 more source

Pattern transition in spacecraft formation flying using bifurcating potential field [PDF]

, 2012
Many new and exciting space mission concepts have developed around spacecraft formation flying, allowing for autonomous distributed systems that can be robust, scalable and flexible.
Bennet, Derek James, McInnes, Colin
core   +1 more source

Blend Electrodes in Lithium‐Ion Batteries: Investigation of Inhomogeneities Using a Spatially Resolved Transmission Line Model

Batteries &Supercaps, EarlyView.
A model for blend electrodes is developed, parameterized, and validated using experimental data from a SiOx/Gr electrode. The model provides information about local states, such as the degree of lithiation or material‐specific C‐rates, distinguishing between the two active materials.
Maximilian Schamel, Julian Knorr, Andrea Kinberger, Michael A. Danzer   +3 more
wiley   +1 more source