In combinatorial solution spaces Iterated Local Search (ILS) turns out to be exceptionally successful. The question arises: is ILS also capable of improving the optimization process in continuous solution spaces? To demonstrate that hybridization leads to powerful techniques in continuous domains, we introduce a hybrid meta-heuristic that integrates Powell’s direct search method. It combines di...

Wright, J. R., A. Johnson, E. Bayne, L. Powell, C. R. Foss, Kennedy, and P. Marra. 2021. Migratory connectivity annual cycle phenology of Rusty Blackbirds (Euphagus carolinus) revealed through archival GPS tags. Avian Conservation Ecology 16(1):20. https://doi.org/10.5751/ACE-01871-160120

We present C methods for either interpolating data or for fitting scattered data associated with a smooth function on a two-dimensional smooth manifold Ω embedded into R. The methods are based on a local bivariate Powell-Sabin interpolation scheme, and make use of local projections on the tangent planes. The data fitting method is a two-stage method. We illustrate the performance of the algorit...

A water budget analysis shows that under current conditions there is a 10% chance live storage in Lakes Mead and Powell will be gone by about 2013 and a 50% chance it will be gone by 2021 if no changes in water allocation from the Colorado River system are made. This startling result is driven by climate change associated with global warming, the effects of natural climate variability, and the ...

Correspondence: Catherine Powell, School of Nursing and Midwifery, University of Southampton, Nightingale Building (67), Highfield, Southampton SO17 1BJ, UK. E-mail: [email protected] POWELL C. (2003) Journal of Advanced Nursing 41(4), 376–382 The Delphi technique: myths and realities Aim. To outline the key concepts and principles of the Delphi technique. Methods. Reference is made to a selectio...

طی بیست سال گذشته, محققان, رابطه بین ایمان مذهبی و سلامت جسمی و روانی را مورد بررسی قرار داده اند (koening, 1999; koenig, mccullough, & larson, 2000; larson, swyers, & mccullough, 1998; levin, 1994; thoresen, 1999; همچنین بنگرید از همین جلد به mccullough, chapter3; plante & sharma, ; and thoresen, harris, & oman, chapter2). داده های بسیار حاصل از این پژوهش ها, رابطه مثبتی را نشان می دهد. هرچند ...

Macro-elements of smoothness Cr are constructed on PowellSabin-12 splits of a triangle for all r ≥ 0. These new elements complement those recently constructed on Powell-Sabin-6 splits and can be used to construct convenient superspline spaces with stable local bases and full approximation power that can be applied to the solution of boundary-value problems and for interpolation of Hermite data.

We construct a suitable normalized B-spline representation for C-continuous quintic Powell-Sabin splines. The basis functions have a local support, they are nonnegative, and they form a partition of unity. The construction is based on the determination of a set of triangles that must contain a specific set of points. We are able to define control points and cubic control polynomials which are t...

We present here because it will be so easy for you to access the internet service. As in this new era, much technology is sophistically offered by connecting to the internet. No any problems to face, just for this day, you can really keep in mind that the book is the best book for you. We offer the best here to read. After deciding how your feeling will be, you can enjoy to visit the link and g...

In this paper, we propose a Parameter Switching (PS) algorithm as a new chaos control method for the Hastings-Powell (HP) system. The PS algorithm is a convergent scheme that switches the control parameter within a set of values while the controlled system is numerically integrated. The attractor obtained with the PS algorithm matches the attractor obtained by integrating the system with the pa...