Results 31 to 40 of about 1,467,276 (295)

Shoemaker-Levy 9 Impact Modeling: I. High-Resolution 3D Bolides

, 2006
We have run high-resolution, three-dimensional, hydrodynamic simulations of the impact of comet Shoemaker-Levy 9 into the atmosphere of Jupiter. We find that the energy deposition profile is largely similar to the previous two-dimensional calculations of
Deming, Drake, Harrington, Joseph, Korycansky, D. G., Kulick, Mathew E.   +3 more
core   +1 more source

The rotational velocity of the sdOB primary of the eclipsing binary system LB 3459 (AA Dor)

, 2003
We present an analysis of the rotational velocity of the primary of LB 3459 based on 107 new high-resolution and high-S/N ESO VLT UVES spectra. 105 of them cover a complete orbital period (0.26 d) of this binary system.
Dorman, Driebe, Hilditch, Iben, K. Werner, Kilkenny, Kilkenny, Livio, Rauch, Rossiter, T. Rauch   +10 more
core   +1 more source

Haloes gone MAD: The Halo-Finder Comparison Project [PDF]

, 2011
[abridged] We present a detailed comparison of fundamental dark matter halo properties retrieved by a substantial number of different halo finders. These codes span a wide range of techniques including friends-of-friends (FOF), spherical-overdensity (SO)
Agertz, Alexander Knebe, Anatoly Klypin, Ascasibar, Ascasibar, Aubert, Bagla, Barnes, Bertschinger, Binney, Bode, Bridget L. Falck, Bullock, Cameron McBride, Chung-Hsing Hsu, Cohn, Couchman, Courtin, Daniel Ceverino, Davis, Dekel, Diemand, Doug Potter, Doumler, Dubinski, Dylan Tweed, Eisenstein, Fabrice Roy, Francesca Iannuzzi, Frazer R. Pearce, Frenk, Fryxell, Gardner, Gardner, Gelb, Gill, Gnedin, Gottlöber, Gottlöber, Governato, Greg Stinson, Gustavo Yepes, Habib, Hayashi, Heitmann, Hernquist, Hernquist, Jeff Gardner, Jenkins, Joachim Stadel, Juerg Diemand, Justin I. Read, Kazantzidis, Kim, Klaus Dolag, Klimentowski, Klypin, Knebe, Knebe, Knollmann, Kravtsov, Kruskal, Lacey, Lukić, Lukić, Lux, Maciejewski, Marcel Zemp, Mark C. Neyrinck, Merz, Michal Maciejewski, Miguel Angel Aragon-Calvo, Muldrew, Navarro, Navarro, Navarro, Navarro, Neyrinck, O’Shea, P. M. Sutter, Patricia Fasel, Paul M. Ricker, Pen, Peter S. Behroozi, Pfitzner, Planelles, Plummer, Press, Quilis, Read, Read, Robertson, Schaap, Sharma, Shaw, Sheth, Shiloach, Skory, Springel, Springel, Springel, Springel, Stadel, Stefan Gottlöber, Steffen R. Knollmann, Stephane Colombi, Stuart I. Muldrew, Susana Planelles, Sutter, Tasker, Teyssier, Tinker, Tweed, van Kampen, Vicent Quilis, Victor Turchaninov, Volker Springel, Warren, Weller, White, White, Yago Ascasibar, Yann Rasera, Zarija Lukić, Zemp, Łokas   +125 more
core   +6 more sources

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

Linear/circular spectropolarimetry of diffuse interstellar bands

, 2011
Context. The identification of the carriers of diffuse interstellar bands (DIBs) remains one of the long-standing mysteries in astronomy. The detection of a polarisation signal in a DIB profile can be used to distinguish between a dust or gas-phase ...
Adamson, Adamson, Adamson, Aitken, B. H. Foing, Ballester, Cami, Cami, Cardelli, Chiar, Clayton, Clayton, Clayton, Cordiner, Cordiner, Cox, Cox, Cox, Cox, Cox, Coyne, Dobashi, Donati, Ehrenfreund, Ehrenfreund, F. Salama, Fitzpatrick, Fitzpatrick, Gordon, Gyul’Budagyan, Herbig, Hobbs, Hobbs, Hough, Jenniskens, Kim, L. d’Hendecourt, Lazarian, Marques, Martin, McCall, McCall, Merrill, Munari, N. L. J. Cox, O’Donnell, P. Ehrenfreund, P. J. Sarre, Rouan, Ruiterkamp, Salama, Sarre, Sarre, Serkowski, Serkowski, Sironi, Smith, Sollerman, Somerville, Somerville, Spaans, Tielens, Tolkachev, Tolkachev, Trumpler, Tuairisg, Underhill, Valencic, Voshchinnikov, Wallerstein, Wegner, Whittet, Wolff, Wolff   +73 more
core   +1 more source

A New MCMC Sampling Based Segment Model for Radar Target Recognition [PDF]

, 2015
One of the main tools in radar target recognition is high resolution range profile (HRRP)‎. ‎However‎, ‎it is very sensitive to the aspect angle‎. ‎One solution to this problem is to assume the consecutive samples of HRRP identically independently ...
Hadavi, M., Nayebi, M. M., Radmard, M.
core   +2 more sources

Study on radar target recognition based on sparse representation with a federated dictionary

Dianzi Jishu Yingyong, 2019
When high resolution range profiles(HRRP) are used to recognize radar target, few traditional recognition methods analyse the sparseness of HRRP samples.
Duan Peipei, Li Hui, Luo Mingshi
doaj   +1 more source

Target identification using bistatic high‐resolution range profiles

IET Radar, Sonar & Navigation, 2017
A novel target identification scheme that utilises high‐resolution range profiles (HRRPs), which are obtained using bistatic (BS) radar (BS‐HRRPs) and four‐dimensional (4D) parameter sets (PSs), is described. These PSs uniquely determine the BS‐HRRPs. In the proposed scheme, a new feature to cope with the scale variances of the BS‐HRRPs is devised by ...
Seung, Jae-Lee, Jeong, Seong-Jae, Yang, Eunjung, Kim, Kyung-Tae   +3 more
openaire   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Ship Profile Imaging Using Multipath Backscattering

Remote Sensing, 2019
This paper addresses the estimation of the height of a point scatterer over a sea surface via multipath exploitation for a High Range Resolution radar that is using pulse range compression, such as Synthetic Aperture Radars.
Jean-Marc Le Caillec, Jérôme Habonneau, Ali Khenchaf   +2 more
doaj   +1 more source