Results 61 to 70 of about 17,709,774 (182)

FAST CALCULATION OF ALL STABILIZING GAINS FOR DISCRETE-TIME SYSTEMS

open access: yesElectrica, 2005
In this paper, two methods for calculating all stabilizing gains for discrete-time systems are given. The first method focuses on converting the problem using a bilinear transformation and then applying a previously developed theorem for continuous time ...
Nevra BAYHAN, Mehmet Turan SÖYLEMEZ
doaj   +2 more sources

Numerical examination of concentration-dependent wastewater sludge ejected into a drinking water source

open access: yesScientific Reports, 2023
One of the significant water-related health challenges globally is due to pollutant fate. Contaminants endanger the lives of humans, animals, and even plants.
S. O. Adesanya   +7 more
doaj   +1 more source

Progressive Convex Hull Simplification

open access: yesComputer Graphics Forum, EarlyView.
Abstract Convex hulls are useful as tight bounding proxies for a variety of tasks including collision detection, ray intersection, and distance computation. Unfortunately, the complexity of polyhedral convex hulls grows linearly with their input. We consider the problem of conservatively simplifying a convex hull to a specified number of half‐spaces ...
Alec Jacobson
wiley   +1 more source

New Analytical Solutions for Time-Fractional Kolmogorov-Petrovsky-Piskunov Equation with Variety of Initial Boundary Conditions

open access: yesMathematics, 2019
The generalized time fractional Kolmogorov-Petrovsky-Piskunov equation (FKPP), D t α ω ( x , t ) = a ( x , t ) D x x ω ( x , t ) + F ( ω ( x , t ) ) , which plays an important role in engineering ...
Thanon Korkiatsakul   +2 more
doaj   +1 more source

Evolution and interpolation of double parton distributions using Chebyshev grids

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Double parton distributions are the nonperturbative ingredients needed for computing double parton scattering processes in hadron–hadron collisions. They describe a variety of correlations between two partons in a hadron and depend on a large number of ...
Markus Diehl   +3 more
doaj   +1 more source

Unconditional Variance Estimation Under Complex Surveys

open access: yesInternational Statistical Review, EarlyView.
Summary The unconditional framework treats the samples and the variables of interest as random variables. This is particularly suitable with analytic inference, when modelling survey data. We show that variance estimation does not involve finite population corrections and joint‐inclusion probabilities, even with large sampling fractions and under ...
Yves G. Berger
wiley   +1 more source

A Non‐Parametric Framework for Correlation Functions on Product Metric Spaces

open access: yesInternational Statistical Review, EarlyView.
Summary We propose a non‐parametric framework for analysing data defined over products of metric spaces, a versatile class encountered in various fields. This framework accommodates non‐stationarity and seasonality and is applicable to both local and global domains, such as the Earth's surface, as well as domains evolving over linear time or time ...
Pier Giovanni Bissiri   +3 more
wiley   +1 more source

Achieving Fair Spectrum Allocation and Reduced Spectrum Handoff in Wireless Sensor Networks: Modeling via Biobjective Optimization

open access: yesModelling and Simulation in Engineering, 2014
This paper considers the problem of centralized spectrum allocations in wireless sensor networks towards the following goals: (1) maximizing fairness, (2) reflecting the priority among sensor data, and (3) avoiding unnecessary spectrum handoff.
Sang-Seon Byun   +3 more
doaj   +1 more source

An extended goal programming framework incorporating poverty measures: application to food bank logistics

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract Food banks play a key role in reducing food insecurity, yet their operations are often constrained by manual and non‐optimised allocation procedures. This study introduces a methodological advance through an extended goal programming model with poverty incorporation (EGP‐PI).
Rhyan C. Rampazo   +4 more
wiley   +1 more source

An efficient spectral algorithm for non-linear astrophysical Lane–Emden problem using pseudo-Chebyshev wavelets with error analysis

open access: yesFranklin Open
Mother wavelets play a crucial role in wavelet analysis, leading to the development of several well-known families such as Haar, Morlet, Legendre, and Chebyshev wavelets.
Susheel Kumar   +3 more
doaj   +1 more source

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