Results 91 to 100 of about 94,284 (293)

Three-monotone spline approximation

Journal of Approximation Theory, 2010
Jackson theorems for functions \(f\) whose third order divided differences are always nonnegative are studied. They are approximated by piecewise polynomial splines with minimal defect, and the error is bounded above in a Jackson-type theorem using the fourth modulus of smoothness of \(f\). Such functions are called three-monotone, and so is the spline
G. A. Dzyubenko, Kirill A. Kopotun, A. V. Prymak   +2 more
openaire   +2 more sources

Ban Glyphosate—Does It Affect the Swedish Farmers' Willingness to Grow Cover Crops?

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The cultivation of cover crops is one of the new Eco‐scheme practices introduced in Sweden. This study examines how the design of policy attributes of these schemes influences farmers' willingness to grow cover crops on arable land, with particular focus on the potential impact of a glyphosate ban.
Vivian Wei Huang, Anna Kristina Edenbrandt, Elin Röös   +2 more
wiley   +1 more source

Robust and automatic modeling of tunnel structures based on terrestrial laser scanning measurement

International Journal of Distributed Sensor Networks, 2019
The terrestrial laser scanning technology is increasingly applied in the deformation monitoring of tunnel structures. However, outliers and data gaps in the terrestrial laser scanning point cloud data have a deteriorating effect on the model ...
Xiangyang Xu, Hao Yang, Boris Kargoll
doaj   +1 more source

Approximation error estimates and inverse inequalities for B-splines of maximum smoothness

, 2015
In this paper, we develop approximation error estimates as well as corresponding inverse inequalities for B-splines of maximum smoothness, where both the function to be approximated and the approximation error are measured in standard Sobolev norms and ...
Takacs, Stefan, Takacs, Thomas
core   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source

Natural Cubic Spline Approximation of Risk-Neutral Density

International Journal of Financial Studies
The risk-neutral density is a fundamental concept in pricing financial derivatives, risk management, and assessing financial markets’ perceptions over significant political or economic events.
Shuang Zhou, Liyuan Jiang, Keren Li, Fangfang Wang, Jie Yang   +4 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

Annals 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, Shinobu Ohnuma, Michiaki Unno, Masakatsu Numata, Tomohiro Yamaguchi, Koya Hida, Tomonori Akagi, Suguru Hasegawa, Akio Shiomi, Ryo Inada, Manabu Shiozawa, Keisuke Kazama, Masanori Hotchi, Masahiko Watanabe, Takeshi Naitoh   +14 more
wiley   +1 more source

Explaining the Origin of Negative Poisson's Ratio in Amorphous Networks With Machine Learning

Advanced Intelligent Discovery, EarlyView.
This review summarizes how machine learning (ML) breaks the “vicious cycle” in designing auxetic amorphous networks. By transitioning from traditional “black‐box” optimization to an interpretable “AI‐Physics” closed‐loop paradigm, ML is shown to not only discover highly optimized structures—such as all‐convex polygon networks—but also unveil hidden ...
Shengyu Lu, Xiangying Shen
wiley   +1 more source

Unstructured spline spaces for isogeometric analysis based on spline manifolds

, 2015
Based on spline manifolds we introduce and study a mathematical framework for analysis-suitable unstructured B-spline spaces. In this setting the parameter domain has a manifold structure, which allows for the definition of function spaces that have a ...
Sangalli, Giancarlo, Takacs, Thomas, Vázquez, Rafael   +2 more
core   +1 more source

Extending Battery Usage Time of a Heavy‐Duty Mecanum‐Wheeled Autonomous Electric Vehicle Used in Iron–Steel Industry by Considering Wheel Slippage

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
It is a fact that slippage causes tracking errors in both longitudinal and lateral directions which results to have less travel distance in tracking a reference trajectory. Less travel distance means having energy loss of the battery and carrying loads less than planned.
Gokhan Bayar, Goktug Hambarci, Ali Sezai Demirel   +2 more
wiley   +1 more source