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Jing Xu, Han Cao, Stefan Sesselmann, Dominic Taylor, Raimund Forst and Frank Seehaus
This study validated the application of Elementary Geometrical Shape (EGS) models for in vivo migration measurements of Total Hip Arthroplasty. Using EGS models for migration detection presenting an alternative to surface models resulting out of computer...
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Ki-Hyeong Song, Young-Jae Choi and Yong-Shin Lee
The shape accuracy of microstructures is an important factor that directly affects the quality and performance of products. Nevertheless, it is difficult to find a study for the shape accuracy of microstructures below several microns. This study aimed to...
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Antonio Tomás Mozas-Calvache and Francisco Javier Ariza-López
This study describes a new method that was developed in order to assess the displacements between two linestrings that represent the same element in two datasets based on their shape. Until now, all existing line-based methods have been focused on the ca...
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Saleh A. Bawazeer, Saleh S. Baakeem and Abdulmajeed A. Mohamad
Radial basis function (RBF) is gaining popularity in function interpolation as well as in solving partial differential equations thanks to its accuracy and simplicity. Besides, RBF methods have almost a spectral accuracy. Furthermore, the implementation ...
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Ke Li, Hai Li, Shaopeng Li and Zengshun Chen
The shape of a bluff body section is of high importance to its aerostatic performance. Obtaining the aerostatic performance of a specific shape based on wind tunnel tests and CFD simulations takes a lot of time, which affects evaluation efficiency. This ...
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Zhiyuan Yu, Xiaoxia Wu and Fuguo Wang
Active optics is a key technology in ground-based large-aperture telescopes. The active correction of the surface shape of the primary mirror is used to reduce the surface shape error and improve the imaging quality. At present, the structure of the acti...
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Xiaoming Wang, Xinhan Hu, Chengbin Huang and Wenya Zhou
The mission performance of future advanced aerospace structures can be synthetically improved via active shape control utilizing piezoelectric materials. Multiple work modes are required. Bending/twisting mode control receives special attention for many ...
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Adriana Enache, Joachim Wallisch, Jeroen van Beeck, Patrick Hendrick and Richard Hann
Ice accretion poses substantial safety hazards for the manned and unmanned aviation industries. Its study is essential for icing events risk assessment and for the development of efficient ice protection systems. The existing ice accretion measurement te...
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Xiaojie Zhang, Weiyu Chen, Dianyin Hu and Rongqiao Wang
In recent years, hollow fan blades have been widely used to meet the requirements of aeroengines for lightweight and better performance. However, the hollow fan blade will change from the manufacture shape to the operating shape with large deformations d...
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Jianhe Li, Honggang Li, Xiaoguang Guo, Renke Kang and Shang Gao
Off-axis parabolic mirrors have extensive applications in X-ray optics, with the precision of their curvature directly impacting grazing-incidence focusing performance. Notably, the off-axis parabolic surface has non-rotating and non-symmetrical characte...
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Kyong-Hyon Kim and Kyeong-Ju Kong
In order to design a diesel engine system and to predict its performance, it is necessary to analyze the gas flow of the intake and exhaust system. Gas flow analysis in a three-dimensional (3D) format needs a high-resolution workstation and an enormous a...
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Nelli Ismailova,Valentyn Bogach,Borys Lebedev
Pág. 17 - 22
This paper reports a technique for constructing a geometric shape of the surface of contact between the interacting conjugated machine elements using computer technology. A subprogram has been developed in the MATLAB software package.The comprehensive so...
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Szymon Kurpiel, Krzysztof Zagórski, Jacek Cieslik, Krzysztof Skrzypkowski and Witold Brostow
The aerospace industry is imposing increasingly strict dimensional tolerances, which is forcing continuous development in component manufacturing. Ensuring tight dimensional tolerances is difficult for thin-walled structures due to their reduced stiffnes...
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Weiliang Zhu, Yaojun Ge, Genshen Fang and Jinxin Cao
This study proposed a novel shape finding technique for both the 2D parallel and 3D spatial main cables of suspension bridge with sufficient accuracy and high efficiency.
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Senquan Yang, Yuan Xie, Pu Li, Haoxiang Wen, Huan Luo and Zhaoshui He
Color histogram-based trackers have obtained excellent performance against many challenging situations. However, since the appearance of color is sensitive to illumination, they tend to achieve lower accuracy when illumination is severely variant through...
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J. D. Tamayo-Quintero, J. B. Gómez-Mendoza and S. V. Guevara-Pérez
Objective: This study aims to introduce and assess a novel AI-driven tool developed for the classification of orthodontic arch shapes into square, ovoid, and tapered categories. Methods: Between 2016 and 2019, we collected 450 digital dental models. Appl...
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Junhua Wang, Junfei Xu, Yan Lu, Tancheng Xie, Jianjun Peng, Junliang Chen and Yanwei Xu
Laser?arc composite additive manufacturing holds significant potential for a wide range of industrial applications, and the control of morphological dimensions in the deposited layer is a critical aspect of this technology. The width and height dimension...
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Jingxue Wang, Xiao Dong and Guangwei Liu
The accuracy of point cloud processing results is greatly dependent on the determination of the voxel size and shape during the point cloud voxelization process. Previous studies predominantly set voxel sizes based on point cloud density or the size of g...
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Yijun Chen, Shenxin Zhao, Lihua Zhang and Qi Zhou
Ocean Island data are essential to the conservation and management of islands and coastal ecosystems, and have also been adopted by the United Nations as a sustainable development goal (SDG 14). Currently, two categories of island datasets, i.e., global ...
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Jinkai Guo, Xiao Xiao, Jianchi Miao, Bingquan Tian, Jing Zhao and Yubin Lan
In order to achieve accurate detection of mature Zanthoxylum in their natural environment, a Zanthoxylum detection network based on the YOLOv5 object detection model was proposed. It addresses the issues of irregular shape and occlusion caused by the gro...
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