Results 101 to 110 of about 93,759 (275)

Spline coalescence hidden variable fractal interpolation functions

open access: yesJournal of Applied Mathematics, 2006
This paper generalizes the classical spline using a new construction of spline coalescence hidden variable fractal interpolation function (CHFIF). The derivative of a spline CHFIF is a typical fractal function that is self-affine or non-self-affine ...
A. K. B. Chand, G. P. Kapoor
doaj   +1 more source

Association Between Liver Function Grade and Post‐Hepatectomy Liver Failure in Patients With Hepatocellular Carcinoma: A Latent Class Analysis

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
We retrospectively analyzed clinical data from patients who underwent hepatectomy for hepatocellular carcinoma (HCC) using LCA‐based grading system. These findings provide a new risk stratification framework for the design of precision surgery to treat patients with HCC.
Ling Liu   +5 more
wiley   +1 more source

The Penalized Lebesgue Constant for Surface Spline Interpolation

open access: yes, 2010
Problems involving approximation from scattered data where data is arranged quasi-uniformly have been treated by RBF methods for decades. Treating data with spatially varying density has not been investigated with the same intensity, and is far less well
Hangelbroek, Thomas
core   +1 more source

Serum Bile Acids Are Useful Indicators of Intrahepatic Recurrence After Initial Curative Hepatectomy for Hepatocellular Carcinoma

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Aim Bile acids accumulation in hepatocytes causes liver damage and contributes to the development of hepatocellular carcinoma. However, the association between serum bile acid levels and postoperative intrahepatic recurrence in hepatocellular carcinoma remains unclear.
Tomoaki Bekki   +9 more
wiley   +1 more source

Approximation of Vehicle Trajectory with B-Spline Curve

open access: yesActa Technologica Agriculturae, 2016
In this contribution, we present the description of a B-spline curve. We deal with creation of its basis function as well as with creation of the curve itself from entered control points.
Páleš Dušan   +3 more
doaj   +1 more source

Impact of Abdominoperineal Resection on Postoperative Male Sexual Function After Minimally Invasive Rectal Cancer Surgery: A Subgroup Analysis From the LANDMARC Study

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Abdominoperineal resection (APR) after minimally invasive rectal cancer surgery was associated with significantly higher rates of erectile and early ejaculatory dysfunction compared with anal‐sparing surgery. Although ejaculatory function showed partial recovery over time, erectile dysfunction persisted up to 12 months postoperatively.
Taiki Kajiwara   +14 more
wiley   +1 more source

Study on the Involute Spline Measurement Method

open access: yesJixie chuandong, 2020
The research history and current situation of involute spline is briefly summarized. The new development and application status of involute spline technology in recent years is more systematically introduced.
Lu Qiulong, Wang Yunxiang
doaj  

On non-convergence of adjoint semigroups for control systems with delays [PDF]

open access: yes
It is shown that the adjoints of a spline based approximation scheme for delay equations do not converge ...
Burns, John   +2 more
core   +1 more source

Surface Spline Approximation on SO(3)

open access: yesApplied and Computational Harmonic Analysis, 2009
The purpose of this article is to introduce a new class of kernels on SO(3) for approximation and interpolation, and to estimate the approximation power of the associated spaces. The kernels we consider arise as linear combinations of Green's functions of certain differential operators on the rotation group. They are conditionally positive definite and
Hangelbroek, Thomas, Schmid, Dominik
openaire   +2 more sources

opXRD: Open Experimental Powder X‐Ray Diffraction Database

open access: yesAdvanced Intelligent Discovery, EarlyView.
We introduce the Open Experimental Powder X‐ray Diffraction Database, the largest openly accessible collection of experimental powder diffractograms, comprising over 92,000 patterns collected across diverse material classes and experimental setups. Our ongoing effort aims to guide machine learning research toward fully automated analysis of pXRD data ...
Daniel Hollarek   +23 more
wiley   +1 more source

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