Results 51 to 60 of about 28,411 (133)

Impact of Secondary Acceleration in Gamma-Ray Bursts [PDF]

open access: yes, 2014
We discuss the acceleration of secondary muons, pions, and kaons in gamma-ray bursts within the internal shock scenario, and their impact on the neutrino fluxes.
Klein, Spencer R.   +2 more
core   +1 more source

AD-VAE: Adversarial Disentangling Variational Autoencoder

open access: yesSensors
Face recognition (FR) is a less intrusive biometrics technology with various applications, such as security, surveillance, and access control systems. FR remains challenging, especially when there is only a single image per person as a gallery dataset ...
Adson Silva, Ricardo Farias
doaj   +1 more source

Freeze out of the expanding system [PDF]

open access: yes, 2007
The freeze out (FO) of the expanding systems, created in relativistic heavy ion collisions, is discussed. We start with kinetic FO model, which realizes complete physical FO in a layer of given thickness, and then combine our gradual FO equations with ...
Anderlik   +10 more
core   +2 more sources

An All-vanadium Continuous-flow Photoelectrochemical Cell for Extending State-of-charge in Solar Energy Storage

open access: yesScientific Reports, 2017
Greater levels of solar energy storage provide an effective solution to the inherent nature of intermittency, and can substantially improve reliability, availability, and quality of the renewable energy source. Here we demonstrated an all-vanadium (all-V)
Zi Wei, Yi Shen, Dong Liu, Fuqiang Liu
doaj   +1 more source

Los actuales retos de la cooperación militar y las capacidades de la Unión Europea

open access: yesCuadernos Europeos de Deusto, 2015
La Política Común de Seguridad y Defensa de la Unión Europea está lejos de alcanzar el nivel de desarrollo previsto por el Tratado de Lisboa, en especial en lo relativo a la cooperación militar y las capacidades de defensa.
Francisco José Ruiz González
doaj   +1 more source

Fluctuation Relations for Current Components in Mesoscopic Electric Circuits

open access: yes, 2011
We present a new class of fluctuation relations, to which we will refer as Fluctuation Relations for Current Components (FRCCs). FRCCs can be used to estimate system parameters when complete information about nonequilibrium many-body electron ...
Ganeshan, Sriram, Sinitsyn, N. A.
core   +1 more source

Simulation Based Studies in Software Engineering: A Matter of Validity [PDF]

open access: yesCLEI Electronic Journal, 2015
Despite the possible lack of validity when compared with other science areas, Simulation-Based Studies (SBS) in Software Engineering (SE) have supported the achievement of some results in the field.
Breno Bernard Nicolau de França   +1 more
doaj  

Política europea de Seguridad y Defensa: una aproximación militar

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2008
El cambio de siglo ha confirmado la existencia de nuevos peligros: terrorismo transnacional, armas de destrucción masiva y la debilidad de algunos estados en práctica descomposición.
Félix Sanz Roldán
doaj   +1 more source

Testing the Unification Model for AGN in the Infrared: are the obscuring tori of Type 1 and 2 Seyferts different?

open access: yes, 2011
We present new mid-infrared (MIR) imaging data for three Type-1 Seyfert galaxies obtained with T-ReCS on the Gemini-South Telescope at subarcsecond resolution.
A. Alonso-Herrero   +85 more
core   +1 more source

原发性食管小细胞癌研究进展

open access: yesZhongguo shiyan zhenduanxue, 2015
目前,食管癌是一种常见的恶性肿瘤,组织学分型可分为鳞癌、腺癌等,其中以鳞癌最为常见,约占90%以上,而原发性的食管小细胞癌(PESC)则更为罕见。近年来,随着病理学技术的发展,以及食管癌外科手术切除技术的提高,文献报道的PESC发病率有所上升。由于国内的食管癌整体发病率高于国外,因此,近年来国内所报道的病例要明显多于国外。PESC的镜下、影像学以及临床表现与鳞癌、腺癌相类似,但其生物学特性、组织来源 ...
杨成, 韩振国, 李婷
doaj  

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