Results 1 to 10 of about 1,112,087 (296)

Jet in jet in M87

open access: yes, 2017
New high-resolution Very Long Baseline Interferometer observations of the prominent jet in the M87 radio galaxy show a persistent triple-ridge structure of the transverse 15-GHz profile with a previously unobserved ultra-narrow central ridge.
Sob'yanin, Denis Nikolaevich
core   +2 more sources

Inlet device with double exponential profile distributor for indoor air dispensation

open access: yesSelected Scientific Papers: Journal of Civil Engineering, 2019
This paper presents a device for introducing air inside a room with the novelty of double-exponential profile of the distributor. This allows entering the rooms of large quantities of blow-in air with low velocities, with the result of possible use in ...
Domnita Florin, Kapalo Peter
doaj   +1 more source

Flow Structure of a Coaxial Circular Jet with Axisymmetric and Helical Instability Modes

open access: yesJournal of Fluid Science and Technology, 2011
The flow structures in a coaxial jet with axisymmetric and helical instability modes for a comparatively low Reynolds number were investigated. The flow visualization and the measurements of velocities were carried out in an open water tank. In addition,
Takahiro KIWATA   +4 more
doaj   +1 more source

Linear Stochastic Estimation of the Velocity Field from a High-Bypass Nozzle with and without Mixing Devices

open access: yesJournal of Fluid Science and Technology, 2011
Linear Stochastic estimation (LSE) is employed to compare the large-scale structure of a jet exhausted through a coaxial nozzle configuration with and without mixing devices on the coaxial stream.
Jeff KASTNER   +2 more
doaj   +1 more source

Jet Observables of Parton Energy Loss in High-Energy Nuclear Collisions

open access: yes, 2009
While strong attenuation of single particle production and particle correlations has provided convincing evidence for large parton energy loss in the QGP, its application to jet tomography has inherent limitations due to the inclusive nature of the ...
Acosta   +12 more
core   +1 more source

Enhancing the aggressive intensity of a cavitating jet by introducing a cavitator and a guide pipe

open access: yesJournal of Fluid Science and Technology, 2014
In order to enhance the aggressive intensity of a cavitating jet for practical applications, such as cavitation peening, a nozzle equipped with an additional nozzle upstream from the main nozzle, i.e., a cavitator, and a guide pipe downstream from the ...
Hitoshi SOYAMA
doaj   +1 more source

On the afterglow from the receding jet of gamma-ray burst

open access: yes, 2009
According to popular progenitor models of gamma-ray bursts, twin jets should be launched by the central engine, with a forward jet moving toward the observer and a receding jet (or the counter jet) moving backwardly.
Huang, Y. F., Kong, Si-Wei, Wang, Xin
core   +1 more source

The semi-inclusive jet function in SCET and small radius resummation for inclusive jet production [PDF]

open access: yes, 2016
We introduce a new kind of jet function: the semi-inclusive jet function $J_i(z, \omega_J, \mu)$, which describes how a parton $i$ is transformed into a jet with a jet radius $R$ and energy fraction $z = \omega_J/\omega$, with $\omega_J$ and $\omega ...
Kang, Zhong-Bo   +2 more
core   +2 more sources

Sudakov suppression of jets in QCD media

open access: yes, 2017
We compute modifications to the jet spectrum in the presence of a dense medium. We show that in the large-$N_c$ approximation and at leading logarithmic accuracy the jet nuclear modification factor factorizes into a quenching factor associated to the ...
Mehtar-Tani, Yacine, Tywoniuk, Konrad
core   +1 more source

Transverse stability of relativistic two-component jets

open access: yes, 2007
Context: Astrophysical jets from various sources seem to be stratified, with a fast inner jet and a slower outer jet. As it is likely that the launching mechanism for each component is different, their interface will develop differential rotation, while ...
Biretta   +24 more
core   +2 more sources

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