Results 51 to 60 of about 1,467,178 (193)

Top hat electrostatic analyzer for far-field electric propulsion plume diagnostics [PDF]

, 2006
The design, development, and testing of the top hat electric propulsion plume analyzer (TOPAZ) are presented for far-field electric propulsion plume diagnostics.
Gallimore, Alec D., Victor, Allen L., Zurbuchen, Thomas H.   +2 more
core   +1 more source

Multinomial pattern matching for high range resolution radar profiles

SPIE Proceedings, 2007
Airborne ground moving-target indication (GMTI) radar can track moving vehicles at large standoff distances. Unfortunately, trajectories from multiple vehicles can become kinematically ambiguous, resulting in confusion between a target vehicle of interest and other vehicles.
Melissa L. Koudelka, John A. Richards, Mark W. Koch   +2 more
openaire   +2 more sources

Radar High-resolution Range Profile Target Recognition Based on Attention Mechanism and Bidirectional Gated Recurrent

Leida xuebao, 2019
To address the problem of radar High-Resolution Range Profile (HRRP) target recognition, traditional methods only consider the envelope information of the sample and ignore the temporal correlation between the range cells.
LIU Jiaqi, CHEN Bo, JIE Xi
doaj   +1 more source

The Kinematic Evolution of Strong MgII Absorbers

, 2007
We consider the evolution of strong (W_r(2796) > 0.3A) MgII absorbers, most of which are closely related to luminous galaxies. Using 20 high resolution quasar spectra from the VLT/UVES public archive, we examine 33 strong MgII absorbers in the redshift ...
Andrew C. Mshar, Bergeron J., Bergeron J., Chris Churchill, de la Varga A., Jane C. Charlton, Le Brun V., Ryan S. Lynch, Tae‐Sun Kim   +8 more
core   +1 more source

Influence of leptin on arterial distensibility - A novel link between obesity and cardiovascular disease? [PDF]

, 2002
Background-The mechanisms by which obesity increases the risk of atherosclerotic cardiovascular disease (CVD) are poorly understood. In experimental models, leptin, a hormone produced by adipose tissue, has been shown adversely to affect vascular health.
Cole, TJ, Deanfield, J, Farooqi, IS, Fewtrell, M, Kattenhorn, M, Lucas, A, O'Rahilly, S, Singhal, A   +7 more
core   +1 more source

Generalized Zero-Shot Space Target Recognition Based on Global-Local Visual Feature Embedding Network

Remote Sensing, 2023
Existing deep learning-based space target recognition methods rely on abundantly labeled samples and are not capable of recognizing samples from unseen classes without training.
Yuanpeng Zhang, Jingye Guan, Haobo Wang, Kaiming Li, Ying Luo, Qun Zhang   +5 more
doaj   +1 more source

Airborne Lidar measurements of the atmospheric pressure profile with tunable Alexandrite lasers [PDF]

, 1986
The first remote measurements of the atmospheric pressure profile made from an airborne platform are described. The measurements utilize a differential absorption lidar and tunable solid state Alexandrite lasers. The pressure measurement technique uses a
Dombrowski, M., Korb, C. L., Milrod, J., Schwemmer, G. K., Walden, H.   +4 more
core   +1 more source

High Resolution Range Profile Sequence Recognition Based on ARTRBM

DEStech Transactions on Computer Science and Engineering, 2018
In this paper, a novel stochastic neural network model named Attention based Recurrent Temporal Restricted Boltzmann Machine (ARTRBM) is proposed for the poor performance of the traditional HRRP recognition methods on high dimensional sequential data and noisy data.
Yi-fan ZHANG, Xuan PENG, Jia-qi YE, Dan QIN, Xun-zhang GAO, Xiang LI   +5 more
openaire   +2 more sources

Cuspy No More: How Outflows Affect the Central Dark Matter and Baryon Distribution in Lambda CDM Galaxies

, 2012
We examine the evolution of the inner dark matter (DM) and baryonic density profile of a new sample of simulated field galaxies using fully cosmological, Lambda CDM, high resolution SPH + N-Body simulations.
A. M. Brooks, A. Pontzen, A. Zolotov, Abdo, Adams, Agertz, Ahn, Avila Reese, Barnes, Bell, Belokurov, Benson, Bigiel, Bode, Bower, Boylan-Kolchin, Brook, Brooks, Brooks, Bruzual, Bullock, C. Christensen, Ceverino, Chemin, Choi, Christensen, Colín, Conroy, Croft, Dalal, Dalcanton, Dalcanton, Davé, de Blok, de Blok, de Souza, Dekel, Dekel, Dekel, Del Popolo, Donato, Eke, El-Zant, Elmegreen, Elson, Evans, F. Governato, Fall, Feldmann, Flores, Font, Geha, Geha, Gentile, Gnedin, Gnedin, Goerdt, Goerdt, Governato, Governato, Governato, Guedes, Haardt, Hopkins, J. Wadsley, Katz, Kazantzidis, Kennicutt, Kereš, Kirby, Knebe, Knollmann, Koda, Koposov, Krumholz, Kuzio de Naray, Lackner, Li, Loeb, Lovell, Macciò, Macciò, Macciò, Martin, Martinez, Mashchenko, Mashchenko, Mayer, Mayer, McGaugh, McQuinn, Mo, Moore, Moore, Moster, Navarro, Navarro, Navarro, Oh, Oh, Oh, Oppenheimer, Parry, Peñarrubia, Pontzen, Pontzen, Pontzen, Primack, Quinn, Rashkov, Read, Reed, Riess, Romano-Díaz, S. H. Oh, S. Shen, Saitoh, Shapley, Shen, Simon, Simon, Spergel, Spergel, Springel, Stadel, Stinson, Stoehr, Strigari, Strigari, Stringer, Swaters, Swaters, Sánchez-Janssen, T. Quinn, Tollerud, Tollerud, Tonini, van den Bosch, van der Wel, Viel, Vogelsberger, Wadsley, Walker, Walker, Walter, Willman, Zhang, Zolotov   +147 more
core   +1 more source

Interplay between Physics and Geometry in Balmer filaments: the Case of SN 1006 [PDF]

, 2018
The analysis of Balmer-dominated emission in supernova remnants is potentially a very powerful way to derive information on the shock structure, on the physical conditions of the ambient medium and on the cosmic-ray acceleration efficiency.
Bandiera, Rino, Knežević, Sladjana, Morlino, Giovanni, Raymond, John C.   +3 more
core   +2 more sources