Results 41 to 50 of about 14,324 (302)

Interhemispheric comparison of spectral width boundary as observed by the SuperDARN radars [PDF]

, 2003
International audiencePrevious studies have shown that dayside equatorward edge of coherent HF radar backscatter having broad Doppler spectral width is coincident with the equatorward edge of the cusp particle precipitation.
Milan, S. E., N. Sato, T. Iyemori, T. Iyemori (7616135), Woodfield, E.E., Lester, M., A. S. Yukimatu, A. S. Yukimatu (7614353), M. Lester, N. Sato (7606136), Milan, S.E., M. Lester (7589660), K. Hosokawa, S. E. Milan, Yukimatu, A. S., Iyemori, T., K. Hosokawa (7606139), Hosokawa, K., E. E. Woodfield (7590071), E. E. Woodfield, Sato, N., Yukimatu, A.S., S. E. Milan (7594526), Woodfield, E. E.   +23 more
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A Network of Portable, Low-Cost, X-Band Radars [PDF]

, 2012
Radar is a unique tool to get an overview on the weather situation, given its high spatio- temporal resolution. Over 60 years, researchers have been investigating ways for obtaining the best use of radar.
Allegretti, Marco, Andrea Prato, Marco Allegretti, Giovanni Pero, Prato, Andrea, Lucianaz, Claudio, Perona, Giovanni Emilio, Riccardo Notarpietro, Claudio Lucianaz, Marco Gabella, Notarpietro, Riccardo, Silvano Bertoldo, Oscar Rorato, Giovanni Perona, Gabella, Marco, Bertoldo, Silvano, Rorato, Oscar   +16 more
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Nightside studies of coherent HF radar spectral width behaviour [PDF]

, 2002
A previous case study found a relationship between high spectral width measured by the CUTLASS Finland HF radar and elevated electron temperatures observed by the EISCAT and ESR incoherent scatter radars in the post-midnight sector of magnetic local time.
J. A. Davies, Davies, J.A., Eglitis, P., P. Eglitis (7605143), P. Eglitis, Woodfield, E.E., Lester, M., Lockwood, M., Lockwood, Mike, M. Lester, J. A. Davies (4412452), T. K. Yeoman (7601525), T. K. Yeoman, M. Lester (7589660), Davies, J. A., M. Lockwood, M. Lockwood (7612331), E. E. Woodfield (7590071), E. E. Woodfield, Yeoman, T. K., Yeoman, T.K., Woodfield, E. E.   +21 more
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An interhemispheric, statistical study of nightside spectral width distributions from coherent HF scatter radars [PDF]

, 2002
International audienceA statistical investigation of the Doppler spectral width parameter routinely observed by HF coherent radars has been conducted between the Northern and Southern Hemispheres for the nightside ionosphere.
Milan, S. E., N. Sato, Woodfield, E.E., Lester, M., M. Lester, N. Sato (7606136), Milan, S.E., M. Lester (7589660), K. Hosokawa, S. E. Milan, K. Hosokawa (7606139), Hosokawa, K., E. E. Woodfield (7590071), E. E. Woodfield, Sato, N., S. E. Milan (7594526), Woodfield, E. E.   +16 more
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Analysis of β´(Cu4Ti) Precipitation During Isothermal Aging of a Cu-4wt.%Ti Alloy [PDF]

Materials Research, 2018
This work analyzed experimental and numerically the growth kinetics of β´precipitation of a Cu-4wt.%Ti alloy after aging at 400, 500 and 600 ºC for times from 0.0166 h to 200 h.
Victor Manuel Lopez-Hirata, Felipe Hernandez-Santiago, Maribel Leticia Saucedo-Muñoz, Hector Javier Dorantes-Rosales, Ana Maria Paniagua-Mercado   +4 more
doaj   +1 more source

Observations of omega bands using an imaging riometer. [PDF]

, 2009
We present a case study of an omega band cur- rent system from 11 May 1998 using data from the Imaging Riometer for Ionospheric Studies (IRIS) in Finland. For the first time, images of a substorm-related omega band in cos- mic noise absorption are shown.
Wild, J.A., Kavanagh, A.J., A. J. Kavanagh, F. Honary, Honary, F., J. A. Wild   +5 more
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Validating precipitation forecasts using remote sensor synergy: A case study approach

, 2010
Several types of remote sensing data are applied synergistically to evaluate the chain of microphysical processes leading to precipitation in a high-resolution numerical weather prediction model.
Yen, Wenchie, Wenchieh Yen, Martin Hagen, Anja Hühnerbein, Marc Schröder, Schröder, Marc, George Craig, Crewell, Susanne, Jürgen Fischer, Mario Mech, Axel Seifert, Michael Baldauf, Seifert, Axel, Hagen, Martin, Craig, George, Pfeifer, Monika, Reinhardt, Thorsten, Monika Pfeifer, Hünerbein, Anja, Fischer, Jürgen, Susanne. Crewell, Hühnerbein, Anja, Baldauf, Michael, Yen, Wenchieh, Thorsten Reinhardt, Mech, Mario   +25 more
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Achieving strength–ductility–corrosion resistance balance in Cu–Ni–Al alloy via heterogeneous grains and coherent nano-lamellar precipitation

Materials Research Letters
Achieving the strength–ductility–corrosion resistance balance in Cu–Ni–Al alloys is significant for marine engineering. Here, the Cu alloy featuring ‘heterogeneous grain distribution and coherent nano-lamellar precipitation’ was fabricated, which ...
Zhumin Li, Haibo Shi, Shengbin Li, Xiao Wang, Jianjun Hu, Yuehong Zheng, Hongwei Yao, Jianzhou Long, Jiansheng Li, Wei Jiang, Ao Meng, Junhua Luan, Xiaona Li   +12 more
doaj   +1 more source

Effect of La addition on Ag-rich phase formation and mechanical properties of Cu-2Ag alloys

Journal of Materials Research and Technology, 2022
A series of novel Cu-2Ag-xLa alloys with reinforced mechanical properties and enhanced electrical conductivities are developed. The effects of La addition on the microstructural features and mechanical properties of as-cast and solution treated Cu-2Ag ...
Peng-Hong Hu, Shi-Hong Zhang, Shuai-Feng Chen, Yan Chen, Hong-Wu Song   +4 more
doaj   +1 more source

A coarsening model for coherent precipitates [PDF]

, 1991
The morphological evolution of coherent inclusions in elastic media is studied in two-dimensions. The inclusions are simple dilations with isotropic surface energy in a system with homogeneous elastic constants of negative anisotropy. The equilibrium sizes at which a circular inclusion transforms to a rectangle or square, and at which a square splits ...
openaire   +1 more source