Results 61 to 70 of about 1,192 (183)
Lightweight hull surface self-design vertical parameterization method based on NURBS
Zhongguo Jianchuan Yanjiu, 2017 [Objectives] At present, conventional design is limited to parent ship design space, and cannot drive ship hull design using as few parameters as possible.
ZHANG Yanru +3 more
doaj +1 more source
Parameter‐Preserving Real‐time BIM Rendering via Direct GPU Ray Tracing
Computer Animation and Virtual Worlds, Volume 37, Issue 4, July/August 2026.Parametric BIM geometry is preserved from Revit extraction to GPU ray tracing without mesh tessellation. A two‐tier cache reuses repeated geometry during export, and an instanced OptiX representation reduces memory at render time. The method lowers export time and GPU memory while preserving exact curved surfaces.
Jaehyuk Lim +3 more
wiley +1 more source
Computer Animation and Virtual Worlds, Volume 37, Issue 4, July/August 2026.MGGAN learns complex, high‐dimensional patterns and geometric statistics of a single 3D mesh using a multiscale graph‐based generative adversarial network. By combining spectral and spatial graph operators in a coarse‐to‐fine framework with noise injection at each scale, the method generates smooth, visually coherent, and topology‐preserving shape ...
Jorge Jabón +2 more
wiley +1 more source
Orthopaedic Surgery, Volume 18, Issue 7, Page 1375-1397, July 2026.This study designed a novel anterolateral screw placement technique and, based on this, developed a new anterolateral fixation method. Imaging, biomechanical, and short‐term efficacy analyses revealed that the Anterolateral Transpedicular Transverse Process Screw (ALTTS) technique achieves a high success rate for L5 vertebral fixation (pedicle width ...
Mingdong Zhang +6 more
wiley +1 more source
Palaeontology, Volume 69, Issue 4, July/August 2026.Abstract Galeaspids are an extinct group of jawless fishes from the Silurian–Devonian of China and northern Vietnam that are key to understanding the origin of vertebrate anatomical innovations. A new eugaleaspid, Bataspis crux gen. et. sp. nov., is described based on fossil material from the Lochkovian (Early Devonian) Xishancun Formation of Qujing ...
Xinyuan Meng +4 more
wiley +1 more source
Mathematical Models For Natural Tooth Morphology Representations
International Dental JournalAim or purpose: This study aims to establish unified mathematical models for natural tooth morphology to address challenges in morphological analysis, classification, and simulation due to irregularity and inter-individual variations.
Du Chen, Shen Jiefei
doaj +1 more source
Simulation of Seismic Response of Reinforced Concrete Beam-Column Joints with Nurbs Surface Fitting
Archives of Civil Engineering, 2017 This paper presents an approach based on NURBS (non-uniform rational B-splines) to achieve a seismic response surface (SRS) from a group of points obtained by using an analytical model of RC joints.
Mirhosseini R. Tabatabaei
doaj +1 more source
Unstructured grids on NURBS surfaces [PDF]
11th Applied Aerodynamics Conference, 1993 A simple and efficient computational method is presented for unstructured surface grid generation. This method is built upon an advancing front technique combined with grid projection. The projection technique is based on a Newton-Raphson method. This combined approach has been successfully implemented for structured and unstructured grids.
openaire +1 more source
Surface Error Evaluation of Non-circular Bevel Gear of Variable Ratio Differential
Jixie chuandong, 2017 Based on the data obtained from the three-coordinate measuring and pre-processing,a NURBS method to reconstruct the complex surface of non-circular bevel gear and a two-step matching method to implement the complex surface error evaluation is proposed ...
Xie Xia, Zhang Xiaobao, Jia Jumin
doaj
Imaging with NURBS Freeform Surfaces
Imaging and Applied Optics 2015, 2015 New developments in the application of NURBS freeform surfaces in imaging systems are described, including their implementation and initial results from next generation designs using the complex shapes that can be modeled. Article not available.
M. Chrisp, B. Primeau
openaire +2 more sources