Results 61 to 70 of about 1,112,087 (296)

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Origin of the complex radio structure in BAL QSO 1045+352

open access: yes, 2010
We present new more sensitive high-resolution radio observations of a compact broad absorption line (BAL) quasar, 1045+352, made with the EVN+MERLIN at 5 GHz.
Agnieszka Janiuk   +34 more
core   +1 more source

Magnetohydrodynamic jets*

open access: yesPhysics of Plasmas, 1994
In a series of three idealized magnetohydrodynamic (MHD) calculations in cylindrical geometry, we show that an azimuthal magnetic field can produce well-collimated jets by the pinch effect. In a laser-produced plasma, the magnetic field is generated by crossed density and temperature gradients (∇n×∇T), and may be responsible for the ‘‘imprint problem.’’
openaire   +1 more source

Disentangling jet modification in jet simulations and in Z+jet data

open access: yesJournal of High Energy Physics, 2022
AbstractThe selection of jets in heavy-ion collisions based on theirpTafter jet quenching is known to bias towards jets that lost little energy in the quark-gluon plasma. In this work, we study and quantify the impact of this selection bias on jet substructure observables so as to isolate effects caused by the modification of the substructure of jets ...
Brewer, Jasmine   +2 more
openaire   +4 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Tomographic Studies of the sQGP

open access: yes, 2005
Azimuthal correlation functions are used to study jet- and di-jet properties as a function of centrality in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$=200 GeV.
Collaboration PHENIX, Wolf G. Holzmann
core   +1 more source

On the Topic of Jets: Disentangling Quarks and Gluons at Colliders [PDF]

open access: yes, 2018
We introduce jet topics: a framework to identify underlying classes of jets from collider data. Because of a close mathematical relationship between distributions of observables in jets and emergent themes in sets of documents, we can apply recent ...
Metodiev, Eric M., Thaler, Jesse
core   +2 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Bulge-Free and Homogeneous Metal Line Jet Printing with StarJet Technology

open access: yesMicromachines
The technology to jet print metal lines with precise shape fidelity on diverse substrates is gaining higher interest across multiple research fields.
Dániel Straubinger   +4 more
doaj   +1 more source

Improvement of the shaped charge jet penetration capability by modifying the liner form using AUTODYN-2D [PDF]

open access: yesScientific Technical Review, 2019
In order to enhance the penetration capability of the shaped charge jet, different liner forms are used. These modifications help to increase the jet tip velocity, as well as to improve the distribution of the kinetic energy.
Kemmoukhe Hicham   +5 more
doaj  

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