Results 131 to 140 of about 11,457,962 (286)

Periodic Orbits of the Planar Anisotropic Kepler Problem

open access: yesInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2017
Elbaz I. Abouelmagd   +2 more
semanticscholar   +1 more source

Optimal Nodes Localization in Wireless Sensor Networks Using Nutcracker Optimizer Algorithms: Istanbul Area

open access: yesIEEE Access
Node localization is a non-deterministic polynomial time (NP-hard) problem in Wireless Sensor Networks (WSN). It involves determining the geographical position of each node in the network.
Nabil Neggaz   +4 more
doaj   +1 more source

Fermion on Curved Spaces, Symmetries, and Quantum Anomalies

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2006
We review the geodesic motion of pseudo-classical spinning particles in curved spaces. Investigating the generalized Killing equations for spinning spaces, we express the constants of motion in terms of Killing-Yano tensors.
Mihai Visinescu
doaj  

Red Supergiant Problem Viewed from the Nebular Phase Spectroscopy of Type II Supernovae

open access: yesThe Astrophysical Journal
The red supergiant (RSG) problem refers to the observed dearth of luminous RSGs identified as progenitors of Type II supernovae (SNe II) in pre-SN imaging.
Qiliang Fang   +2 more
doaj   +1 more source

Intelligent Identification Method of Valve Internal Leakage in Thermal Power Station Based on Improved Kepler Optimization Algorithm-Support Vector Regression (IKOA-SVR)

open access: yesComputation
Valve internal leakage in thermal power stations exhibits a strong concealed nature. If it cannot be discovered and predicted of development trend in time, it will affect the safe and economical operation of plant equipment.
Fengsheng Jia   +5 more
doaj   +1 more source

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