Results 51 to 60 of about 1,192 (183)

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, Volume 309, Issue 9, Page 2262-2285, September 2026.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

Creeping Ray Tracing Algorithm for Arbitrary NURBS Surfaces Based on Adaptive Variable Step Euler Method

International Journal of Antennas and Propagation, 2015
Although the uniform theory of diffraction (UTD) could be theoretically applied to arbitrarilyshaped convex objects modeled by nonuniform rational B-splines (NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the ...
Song Fu, Yun-Hua Zhang, Si-Yuan He, Xi Chen, Guo-Qiang Zhu   +4 more
doaj   +1 more source

Thermo‐Mechanical Topology Optimization: An Immersed FEM Level‐Set‐Based Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT This paper proposes a multi‐physics framework for topology optimization using an immersed level set‐finite element model. The work extends the capabilities of a recently developed immersed level‐set method to thermo‐mechanical problems, including coupling and material‐dependent properties.
Farzad Tatar, Silvia Monchetti, Elisabetta Manconi, Roberto Brighenti   +3 more
wiley   +1 more source

NURBS Reconstruction and Optimization Method for the Tooth Surface after Simulation Process of Spiral Bevel Gear

Jixie chuandong, 2016
For lower accuracy of tooth surface of outputted model after simulation process for spiral bevel gear,some methods cubic NURBS reconstruction and optimization of tooth surface are proposed by combining with the advantages and features of the Non- Uniform
Li Yunsong, Adayi·Xieeryazidan, Ding Han   +2 more
doaj  

End‐to‐End Deep Learning Framework for Freeform Metasurfaces via Non‐Uniform Rational B‐Splines Meta‐Atoms

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
This work presents a NURBS‐enabled metasurface design framework that combines freeform meta‐atom parameterization with Transformer‐based deep learning. The unified mathematical representation expands geometric degrees of freedom while enabling efficient optical‐response prediction and inverse design.
Kaipeng Liu, Junliang Jia, Kun Li, Yuanjian Wan, Runlin Zhou, Xuyang Chen, Chao Wang, Zhixiang Huang, Jiaxin Li, Gang Gao, Pei Zhang, Longqiu Li   +11 more
wiley   +1 more source

Accuracy assessment of mine walls’ surface models derived from terrestrial laser scanning

International Journal of Coal Science & Technology, 2018
The monitoring of highwall slopes at open-pit mines is an important task to ensure safe mining. For this reason, several techniques such as total station, radar, terrestrial Light Detection and Ranging (LIDAR) can be employed for surface measurement. The
Nguyen Quoc Long, Michał M. Buczek, La Phu Hien, Sylwia A. Szlapińska, Bui Xuan Nam, Nguyen Viet Nghia, Cao Xuan Cuong   +6 more
doaj   +1 more source

Effect of Medial Unicompartmental Knee Arthroplasty on Clinical Outcomes and Stress Distribution of Patellofemoral Joint

Orthopaedic Surgery, Volume 18, Issue 8, Page 1581-1590, August 2026.
Medial unicompartmental knee arthroplasty improved pain, function, and radiographic alignment while optimizing patellofemoral stress distribution, demonstrating favorable early and mid‐term clinical outcomes. ABSTRACT Objective This study aimed to investigate the clinical and biomechanical effect of medial fixed‐bearing unicompartmental knee ...
Yang Ding, Hua‐zhang Xiong, Kai‐bo Sun, Yi Zeng, Yong Nie, Yuan‐gang Wu, Bin Shen   +6 more
wiley   +1 more source

Incremental rendering of deformable trimmed NURBS surfaces [PDF]

Proceedings of the ACM symposium on Virtual reality software and technology, 2003
Trimmed NURBS surfaces are often used to model smooth and complex objects. Unfortunately, most existing hardware graphics accelerators cannot render them directly. Although there are a lot of methods proposed to accelerate the rendering of such surfaces, majority of them are based on tessellation, which is developed primarily for handling non-deforming
Gary K. L. Cheung, Rynson W. H. Lau, Frederick W. B. Li   +2 more
openaire   +1 more source

Numerical Anisotropy and Band‐Gap Formation in Finite Element Wave Propagation: Analysis and Mitigation Using Spline‐Based Elements

International Journal for Numerical Methods in Engineering, Volume 127, Issue 14, 30 July 2026.
ABSTRACT Numerical anisotropy and dispersion are inherent consequences of spatial discretization in finite element modeling of wave propagation. In two‐dimensional problems, these effects manifest not only as direction‐dependent phase and group velocities but also as angularly dependent numerical band gaps that may entirely suppress wave propagation ...
Wiktor Waszkowiak, Arkadiusz Żak, Łukasz Doliński, Paweł Kowalski   +3 more
wiley   +1 more source

An efficient bivariate three-point Lagrange interpolation method based on coordinate transformation

Advances in Mechanical Engineering
This paper proposes a bivariate three-point interpolation method based on coordinate transformation. The transformation significantly improves computational efficiency by converting radial sampling points into interpolation nodes, while enabling high ...
Xianjun Sheng, Zhijie Zhao, Ning Liu, Kexin Wang   +3 more
doaj   +1 more source