Results 71 to 80 of about 10,389 (330)

Quasi-interpolants Based on Trigonometric Splines

Journal of Approximation Theory, 1998
In this paper the authors develop a general theory of quasi-interpolants based on trigonometric splines. Although the analysis is parallel to the familiar treatment of quasi-interpolants based on polynomial splines, the details are complicated because of the nature of trigonometric splines.
Lyche, Tom, Schumaker, Larry L., Stanley, Sonya   +2 more
openaire   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

Advanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang, Juguo Dai, Dongxu Li, Jianghua Wu, Hucheng Fu, Yiting Xu, Xueqiang Qi, Qian Xue, Yanbin Shen, Xiaoqing Pan, Conghui Yuan, Shuifen Xie, Andreu Cabot, Lizong Dai   +13 more
wiley   +1 more source

Direct and Inverse Results on Bounded Domains for Meshless Methods via Localized Bases on Manifolds

, 2017
This article develops direct and inverse estimates for certain finite dimensional spaces arising in kernel approximation. Both the direct and inverse estimates are based on approximation spaces spanned by local Lagrange functions which are spatially ...
E. Fuselier, FJ Narcowich, HN Mhaskar, Jeff Cheeger, Karsten Grove, Manfredo Perdigão do Carmo, Michael Griebel, Ronald A. DeVore, Ronald DeVore, T. Hangelbroek, T. Hangelbroek, T. Hangelbroek, Thierry Aubin   +12 more
core   +1 more source

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

Advanced Functional Materials, EarlyView.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song, Lijie Wang, Jiayi Wang, Yafeng Xu, Renqian Zhou, Shulin Chen, Partha Maity, Peng Yuan, Yongcao Zhang, Bingyao Shao, Jian‐Xin Wang, Jun Yin, Ren‐Wu Huang, Youyou Yuan, Taimoor Ahmad, Osman M. Bakr, Omar F. Mohammed   +16 more
wiley   +1 more source

Quasi-interpolants splines : exemples et applications [PDF]

ESAIM: Proceedings, 2007
A quasi-interpolant (abbr. QI) is an approximation operator obtained as a finite linear combination of basis functions with bounded support (B-splines). In addition, the coefficient of a B-spline is a linear functional (of differential, discrete or integral type) acting on the function to be approximated in a neighbourhood of the support of that B ...
openaire   +2 more sources

Macro-element interpolation on tensor product meshes [PDF]

, 2014
A general theory for obtaining anisotropic interpolation error estimates for macro-element interpolation is developed revealing general construction principles.
Schopf, Martin
core  

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Radau Quadrature for an Almost Quasi-Hermite-Fejer-Type Interpolation in Rational Spaces

International Journal of Analysis and Applications, 2021
In this paper, we have studied an almost quasi Hermite-Fejer-type interpolation in rational spaces. A Radau type quadrature formula has also been obtained for the same.
Shrawan Kumar, Neha Mathur, Vishnu Narayan Mishra, Pankaj Mathur   +3 more
doaj  

On Nonunique Fixed Point Theorems via Interpolative Chatterjea Type Suzuki Contraction in Quasi-Partial b-Metric Space

Journal of Mathematics, 2022
In the present research paper, Chatterjea type contraction is defined and discussed in the framework of quasi-partial b-metric space. Further, some common fixed point results are proved using the notion of interpolation. The results are extended to fixed
Pragati Gautam, Shiv Raj Singh, Santosh Kumar, Swapnil Verma   +3 more
doaj   +1 more source

Quasi-Interpolation in Shift Invariant Spaces

Journal of Mathematical Analysis and Applications, 2000
Let \(\phi:\mathbb{R}^s\to\mathbb{R}\) be a compactly supported function, and \(S(\phi)\) denote the linear span of \(\{\phi(\cdot -{\mathbf k}) :{\mathbf k}\in\mathbb{Z}^s\}\), \(s\in\mathbb{N}.\) The authors consider the problem of approximating a continuous function \(f : \mathbb{R}^s\to \mathbb{R}\) on compact subsets of \(\mathbb{R}^s\) from the ...
Mhaskar, H.N., Narcowich, F.J., Ward, J.D.   +2 more
openaire   +1 more source