Results 21 to 30 of about 10,006 (159)
Energy Science &Engineering, EarlyView.ABSTRACT Renewable energy sources, such as wind, solar, biomass, hydropower, and geothermal power, have a relatively minor environmental impact compared to nonrenewable sources and are sustainable over the long term. However, the variable nature of renewable energy production and the load demands of plug‐in hybrid electric vehicles (PHEVs) can lead to ...
Chou‐Yi Hsu +9 more
wiley +1 more source
Tailoring Flatband Dispersion in Bilayer Moiré Photonic Crystals
Laser &Photonics Reviews, EarlyView.The photonic dispersion in 1D moiré structures formed by stacking two photonic crystal slabs with slightly different periods is experimentally investigated. By precisely adjusting the filling factor of the photonic crystals, the evolution of moiré minibands into flatbands is experimentally and numerically demonstrated. This result provides a practical
Chirine Saadi +8 more
wiley +1 more source
, 2008 We consider the asymptotic behavior as $n\to\infty$ of the spectra of random matrices of the form \[\frac{1}{\sqrt{n-1}}\sum_{k=1}^{n-1}Z_{nk}\rho_n ((k,k+1)),\] where for each $n$ the random variables $Z_{nk}$ are i.i.d.
Evans, Steven N.
core +2 more sources
Launch Uncertainty Analysis Under Barrel Erosion Using Experiments and Random Matrix Theory
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The effects of barrel erosion on artillery firing performance have long been a subject of concern, but its effect on launch uncertainty has yet to be investigated. This article explores the influence of barrel erosion on the interior ballistic mechanical properties and launch disturbances.
Chengyuan Guo +5 more
wiley +1 more source
Improved Regression Tree Models Using Generalization Error‐Based Splitting Criteria
Naval Research Logistics (NRL), EarlyView.ABSTRACT Despite the widespread application of machine learning (ML) approaches such as the regression tree (RT) in the field of data‐driven optimization, overfitting may impair the effectiveness of ML models and thus hinder the deployment of ML for decision‐making.
Ying Yang, Shuaian Wang, Gilbert Laporte
wiley +1 more source
Polynomial Triangles Revisited [PDF]
, 2012 A polynomial triangle is an array whose inputs are the coefficients in integral powers of a polynomial. Although polynomial coefficients have appeared in several works, there is no systematic treatise on this topic. In this paper we plan to fill this gap.
Mohammedia Morocco, Nour-eddine Fahssi
core
Minimum‐Peak‐Cost Flows Over Time
Networks, EarlyView.ABSTRACT Peak cost is a novel objective for flows over time that describes the amount of workforce necessary to run a system. We focus on minimizing peak costs in the context of maximum temporally repeated flows and formulate the corresponding MPC‐MTRF problem.
Mariia Anapolska +7 more
wiley +1 more source
People and Nature, EarlyView.Abstract Other effective area‐based conservation measures (OECMs) are a promising tool to conserve biodiversity in human‐dominated land‐ and seascapes, but their implementation still raises some challenges. Addressing those challenges is necessary to ensure potential OECMs are well‐designed, fitted to the local social‐ecological context and effective ...
Anna Stier +3 more
wiley +1 more source
Combinatorics and Boson normal ordering: A gentle introduction
, 2007 We discuss a general combinatorial framework for operator ordering problems by applying it to the normal ordering of the powers and exponential of the boson number operator.
A. Horzela +12 more
core +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Huánglóngbìng (HLB) is a bacterial disease of citrus that has significantly impacted Brazil and the United States, although citrus production in the Mediterranean Basin remains unaffected. By developing a mathematical model of spread in Spain, we tested surveillance and control strategies before any future HLB entry in the EU.
John Ellis +9 more
wiley +1 more source