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Journal articles on the topic '3D geometry compression'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Gao, Yuan, Zhiqiang Wang, and Jin Wen. "A Method for Generating Geometric Image Sequences for Non-Isomorphic 3D-Mesh Sequence Compression." Electronics 12, no. 16 (2023): 3473. http://dx.doi.org/10.3390/electronics12163473.

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As virtual reality and 3D-modeling technology continue to advance, the amount of digital geometric media data is growing at an explosive rate. For example, 3D meshes, an important type of digital geometric media, can precisely record geometric information on a model’s surface. However, as the complexity and precision of 3D meshes increase, it becomes more challenging to store and transmit them. The traditional method of compressing non-isomorphic 3D-mesh sequences through frame-by-frame compression is inefficient and destroys the inter-frame correlations of the sequences. To tackle these issue

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hauwermeiren, Bert Van, Leon Denis, and Adrian Munteanu. "Non-Uniform Voxelisation for Point Cloud Compression." Sensors 25, no. 3 (2025): 865. https://doi.org/10.3390/s25030865.

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Point cloud compression is essential for the efficient storage and transmission of 3D data in various applications, such as virtual reality, autonomous driving, and 3D modelling. Most existing compression methods employ voxelisation, all of which uniformly partition 3D space into voxels for more efficient compression. However, uniform voxelisation may not capture the underlying geometry of complex scenes effectively. In this paper, we propose a novel non-uniform voxelisation technique for point cloud geometry compression. Our method adaptively adjusts voxel sizes based on local point density,

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Guéziec, André, and Gabriel Taubin. "Multi-Resolution Modeling and 3D Geometry Compression." Computational Geometry 14, no. 1-3 (1999): 1–3. http://dx.doi.org/10.1016/s0925-7721(99)00033-4.

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4

Huang, Tianxin, Jiangning Zhang, Jun Chen, et al. "3QNet." ACM Transactions on Graphics 41, no. 6 (2022): 1–13. http://dx.doi.org/10.1145/3550454.3555481.

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Since the development of 3D applications, the point cloud, as a spatial description easily acquired by sensors, has been widely used in multiple areas such as SLAM and 3D reconstruction. Point Cloud Compression (PCC) has also attracted more attention as a primary step before point cloud transferring and saving, where the geometry compression is an important component of PCC to compress the points geometrical structures. However, existing non-learning-based geometry compression methods are often limited by manually pre-defined compression rules. Though learning-based compression methods can sig

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Finley, Matthew G., and Tyler Bell. "Depth range reduction for 3D range geometry compression." Optics and Lasers in Engineering 138 (March 2021): 106457. http://dx.doi.org/10.1016/j.optlaseng.2020.106457.

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Finley, Matthew G., and Tyler Bell. "Two-Channel 3D Range Geometry Compression with Virtual Plane Encoding." Electronic Imaging 2021, no. 18 (2021): 61–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.18.3dia-061.

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Modern computing and imaging technologies have allowed for many recent advances to be made in the field of 3D range imaging: range data can now be acquired at speeds much faster than real-time, with sub-millimeter precision. However, these benefits come at the cost of an increased quantity of data being generated by 3D range imaging systems, potentially limiting the number of applications that can take advantage of this technology. One common approach to the compression of 3D range data is to encode it within the three color channels of a traditional 24-bit RGB image. This paper presents a nov

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Zhuang, Lehui, Jin Tian, Yujin Zhang, and Zhijun Fang. "Variable Rate Point Cloud Geometry Compression Method." Sensors 23, no. 12 (2023): 5474. http://dx.doi.org/10.3390/s23125474.

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With the development of 3D sensors technology, 3D point cloud is widely used in industrial scenes due to their high accuracy, which promotes the development of point cloud compression technology. Learned point cloud compression has attracted much attention for its excellent rate distortion performance. However, there is a one-to-one correspondence between the model and the compression rate in these methods. To achieve compression at different rates, a large number of models need to be trained, which increases the training time and storage space. To address this problem, a variable rate point c

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Bouten, Carlijn V. C., Roel G. M. Breuls, Emiel A. G. Peeters, Cees W. J. Oomens, and Frank P. T. Baaijens. "In vitro models to study compressive strain‐induced muscle cell damage." Biorheology: The Official Journal of the International Society of Biorheology 40, no. 1-3 (2003): 383–88. http://dx.doi.org/10.1177/0006355x2003040001003053.

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Skeletal muscle tissue is highly susceptible to sustained compressive straining, eventually leading to tissue breakdown in the form of pressure sores. This breakdown begins at the cellular level and is believed to be triggered by sustained cell deformation. To study the relationship between compressive strain‐induced muscle cell deformation and damage, and to investigate the role of cell–cell interactions, cell–matrix interactions and tissue geometry in this process, in vitro models of single cells, monolayers and 3D tissue analogs under compression are being developed. Compression is induced

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9

Braileanu, Patricia Isabela, Delia Alexandra Prisecaru, Nicoleta Crisan, Marilena Stoica, and Andrei Calin. "Influence of Triangular Pattern Infill on 3D Printed Torus Mechanical Behavior." Materiale Plastice 59, no. 4 (2001): 155–64. http://dx.doi.org/10.37358/mp.22.4.5634.

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The torus or toroidal surfaces are geometries that can be easily found in various industrial applications, from containers, devices, cartwheels, design objects and even machine parts, being also a geometric primitive often used in solid constructive geometry. For a better understanding of the torus-type surface mechanical behavior, this paper aims to study the toroidal geometry manufactured from ABS material by using the FDM 3D printing method and subjecting each sample to compression tests to identify the influence of the sample filling percentage in the case of triangular pattern.

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10

Lee, S., C. Bai, and J. Shim. "Performance analysis and experiment of new 3D rotary compressor." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 1 (2011): 133–44. http://dx.doi.org/10.1177/0954406211413519.

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R410A is one of the HFC refrigerants, which are preferred globally to promote the most environmentally friendly option on the basis of an objective reference system taking into account the alternative selection of HCFC refrigerants for the air-conditioning system by the Kyoto protocol. This article presents a three-dimensional (3D) rotary compressor that is within the family of rotary compressors. First, the geometry of the compressor is explained and equations relating the volume of the compression and suction chambers to the rotational angle of the shaft are derived. These equations are used

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11

Schwartz, Broderick S., and Tyler Bell. "Downsampled depth encoding for enhanced 3D range geometry compression." Applied Optics 61, no. 6 (2022): 1559. http://dx.doi.org/10.1364/ao.445800.

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12

Liu, Yongkui, Lijun He, Pengjie Wang, Linghua Li, and Borut Žalik. "Lossless Geometry Compression Through Changing 3D Coordinates into 1D." International Journal of Advanced Robotic Systems 10, no. 8 (2013): 308. http://dx.doi.org/10.5772/56657.

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13

Finley, Matthew G., and Tyler Bell. "Variable Precision Depth Encoding for 3D Range Geometry Compression." Electronic Imaging 2020, no. 17 (2020): 34–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.17.3dmp-034.

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This paper presents a novel method for accurately encoding 3D range geometry within the color channels of a 2D RGB image that allows the encoding frequency—and therefore the encoding precision—to be uniquely determined for each coordinate. The proposed method can thus be used to balance between encoding precision and file size by encoding geometry along a normal distribution; encoding more precisely where the density of data is high and less precisely where the density is low. Alternative distributions may be followed to produce encodings optimized for specific applications. In general, the na

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Finley, Matthew G., Jacob Y. Nishimura, and Tyler Bell. "Variable precision depth encoding for 3D range geometry compression." Applied Optics 59, no. 17 (2020): 5290. http://dx.doi.org/10.1364/ao.389913.

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15

Bell, Tyler, and Song Zhang. "Multiwavelength depth encoding method for 3D range geometry compression." Applied Optics 54, no. 36 (2015): 10684. http://dx.doi.org/10.1364/ao.54.010684.

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Finley, Matthew G., and Tyler Bell. "Two-channel depth encoding for 3D range geometry compression." Applied Optics 58, no. 25 (2019): 6882. http://dx.doi.org/10.1364/ao.58.006882.

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17

Han, Jian, Xin Ma, Rui Yang, and Shiyong Sun. "Compressive Properties of Composite Sandwich Structure with Fractal Tree-Inspired Lattice Core." Materials 18, no. 3 (2025): 606. https://doi.org/10.3390/ma18030606.

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A novel sandwich structure of a fractal tree-like lattice (SSFL) is proposed. The geometry characteristics were constructed based on the fractal tree-like patterns found in many biological structures, such as giant water lilies and dragon blood trees. The compressive performance of the proposed structures with different fractal orders was experimentally and numerically investigated. The experimental samples were made by 3D printing technology. Axial compression tests were conducted to study the compressive performance and failure mode of the SSFLs. The results indicated that the new structure

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Quader Shurjeel, Abdul, Narendra Pothula, and Eshwaraiah Punna. "Experimental investigation of strength properties of 3D printed ABS composites." E3S Web of Conferences 309 (2021): 01148. http://dx.doi.org/10.1051/e3sconf/202130901148.

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Owing to the huge demand and dependency of the industry on the lightweight and superior mechanical properties products as well as components, the materials like CF-ABS (Acrylonitrile Butadiene Styrene reinforced with carbon fibers) and PC-ABS (Acrylonitrile Butadiene Styrene reinforced with polycarbonate) have gained utmost importance in the current scenario. The present research in this paper focuses on finding the mechanical properties, mainly the tensile, compression, and flexural properties of both the above-said materials. FDM (Fused Deposition Modelling) is used as the printing technique

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19

Tripathi, Lekhani, and Bijoya Kumar Behera. "Flatwise compression behavior of 3D woven honeycomb composites." Journal of Industrial Textiles 52 (August 2022): 152808372211254. http://dx.doi.org/10.1177/15280837221125483.

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Honeycomb being a cellular solid is a well-known core in sandwich structure and is considered an ideal structural material because of its high strength and shear stiffness, high impact strength, lower weight, excellent energy absorbing property, high crushing stress, and almost constant crushing force. In this study, 3D woven honeycomb structures were developed with different cell geometry by varying the cell size, free wall length, bonded wall length, opening angle, and the number of honeycomb layers keeping overall composite thickness and cell shape constant. The variation of cell geometry w

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Finley, Matthew G., and Tyler Bell. "Two-channel 3D range geometry compression with primitive depth modification." Optics and Lasers in Engineering 150 (March 2022): 106832. http://dx.doi.org/10.1016/j.optlaseng.2021.106832.

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21

Gu, Shuai, Junhui Hou, Huanqiang Zeng, Hui Yuan, and Kai-Kuang Ma. "3D Point Cloud Attribute Compression Using Geometry-Guided Sparse Representation." IEEE Transactions on Image Processing 29 (2020): 796–808. http://dx.doi.org/10.1109/tip.2019.2936738.

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Rumman, Nadine Abu, Samir Abou El-Seoud, Khalaf F. Khatatneh, and Christain Gütl. "Geometry Compression for 3D Polygonal Models using a Neural Network." International Journal of Computer Applications 1, no. 29 (2010): 13–22. http://dx.doi.org/10.5120/580-744.

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23

Karpinsky, Nikolaus, and Song Zhang. "3D range geometry video compression with the H.264 codec." Optics and Lasers in Engineering 51, no. 5 (2013): 620–25. http://dx.doi.org/10.1016/j.optlaseng.2012.12.021.

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24

Hassanzadeh, Sanaz, Hossein Hasani, and Mohammad Zarrebini. "Compression load-carrying capacity of 3D-integrated weft-knitted spacer composites." Journal of Sandwich Structures & Materials 21, no. 4 (2017): 1379–405. http://dx.doi.org/10.1177/1099636217716575.

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Recent developments in composite manufacturing have been resulted in formation of newly-known 3D integrated weft-knitted fabrics which can be used as the composites’ reinforcing materials. In this paper, the compression-resistivity of 3D composite panels reinforced with these newly designed 3D textile-preforms from E-glass fibers has been studied. Following this research, the composites mechanical functionality under flatwise and edgewise compression loadings was evaluated. Using VIP method, three groups of glass/epoxy composite with different core thicknesses and structural geometries were pr

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Qian, C., R. Jiang, and M. Li. "AN ENCODING METHOD FOR COMPRESSING GEOGRAPHICAL COORDINATES IN 3D SPACE." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 (September 12, 2017): 123–28. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w7-123-2017.

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This paper proposed an encoding method for compressing geographical coordinates in 3D space. By the way of reducing the length of geographical coordinates, it helps to lessen the storage size of geometry information. In addition, the encoding algorithm subdivides the whole space according to octree rules, which enables progressive transmission and loading. Three main steps are included in this method: (1) subdividing the whole 3D geographic space based on octree structure, (2) resampling all the vertices in 3D models, (3) encoding the coordinates of vertices with a combination of Cube Index Co

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Koch, K. "Digital Images with 3D Geometry from Data Compression by Multi-scale Representations of B-Spline Surfaces." Journal of Geodetic Science 1, no. 3 (2011): 240–50. http://dx.doi.org/10.2478/v10156-011-0002-2.

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Digital Images with 3D Geometry from Data Compression by Multi-scale Representations of B-Spline SurfacesTo build up a 3D (three-dimensional) model of the surface of an object, the heights of points on the surface are measured, for instance, by a laser scanner. The intensities of the reflected laser beam of the points can be used to visualize the 3D model as range image. It is proposed here to fit a two-dimensional B-spline surface to the measured heights and intensities by the lofting method. To fully use the geometric information of the laser scanning, points on the fitted surface with their

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27

Hajizadeh, Mohammadali, and Hossein Ebrahimnezhad. "Eigenspace compression: dynamic 3D mesh compression by restoring fine geometry to deformed coarse models." Multimedia Tools and Applications 77, no. 15 (2017): 19347–75. http://dx.doi.org/10.1007/s11042-017-5394-2.

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28

Abderrahim, Zeineb, and Mohamed Salim Bouhlel. "Compression and Visualization Interactive of 3D Mesh." International Journal of Applied Mathematics and Informatics 15 (November 16, 2021): 85–92. http://dx.doi.org/10.46300/91014.2021.15.14.

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The combination of compression and visualization is mentioned as perspective, very few articles treat with this problem. Indeed, in this paper, we proposed a new approach to multiresolution visualization based on a combination of segmentation and multiresolution mesh compression. For this, we proposed a new segmentation method that benefits the organization of faces of the mesh followed by a progressive local compression of regions of mesh to ensure the refinement local of the three-dimensional object. Thus, the quantization precision is adapted to each vertex during the encoding /decoding pro

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Savvakis, Savvas, Georgia Dimopoulou, and Konstantinos Zoumpourlos. "The Effect of the Isolator Design on the Efficiency of Rotary Piston Compressors." Thermo 3, no. 2 (2023): 216–31. http://dx.doi.org/10.3390/thermo3020013.

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The current work investigates the relationship between the shape of an isolator of a concentric rotary piston compressor and the secondary peak pressure developed during each operating cycle. This peak pressure is developed when the piston passes through the isolator cavity, and it is negative for compressor efficiency. The aim of this paper is to identify the isolator cavity shape that minimizes this secondary peak to improve compressor efficiency. This study covers five different cavities that may be used in such compressors. Contrary to our expectations, the conclusion is that the best geom

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Menegozzo, Marco, Andrés Cecchini, Ryan Christian Ogle, Uday Kumar Vaidya, Isaac Acevedo-Figueroa, and Jaine A. Torres-Hernández. "Scale Effect Assessment of Innovative 3D-Printed Honeycomb under Quasi-Static Compression." Aerospace 10, no. 3 (2023): 242. http://dx.doi.org/10.3390/aerospace10030242.

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Honeycomb cores are widely used in the aerospace and automotive fields as a part of protective structures. Unfortunately, standard prismatic honeycomb cores offer a limited amount of energy absorption under lateral loads and suffer from degradation of their impact-deadening properties when their dimensional scale is increased. In this work, a multiscale study on energy absorption under quasi-static load is carried out on 3D-printed honeycomb core samples constituted by a variable section and compared to the cases of standard hexagonal honeycomb samples having the same mass and external dimensi

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Calcagno, Philippe, Joëlle Lazarre, Gabriel Courrioux, and Patrick Ledru. "3D geometric modelling of an external orogenic domain: a case history from the western Alps (massif de Morges, Pelvoux)." Bulletin de la Société Géologique de France 178, no. 4 (2007): 263–74. http://dx.doi.org/10.2113/gssgfbull.178.4.263.

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Abstract Describing the 3D geometry of geological surfaces is a fundamental step to infer their structural history, especially when they have recorded successive deformation phases. This study aims at testing the contribution of 3D modelling to the understanding of orogenic domains. It focuses on the cover/basement contact of an External Crystalline Massif of the French Alps considered as a marker of the finite deformation at orogen scale. This contact is observable in outliers of Mesozoic cover in the test area located in the Massif de Morges (Pelvoux Massif). A 3D geometric model has been bu

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Hassan, Md Sahid, Luis A. Chavez, Chien-Chun Chou, Samuel E. Hall, Tzu-Liang Tseng, and Yirong Lin. "Mechanical response of shape-recovering metamaterial structures fabricated by additive manufacturing." Materials Research Express 8, no. 11 (2021): 115801. http://dx.doi.org/10.1088/2053-1591/ac343f.

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Abstract Three different metamaterial structures were fabricated using stereolithography 3D printing and a shape recovering material. Mechanical properties and recovery efficiency were assessed after compression testing. All three structures exhibited similar initial specific compressive moduli, while the highest specific toughness was observed for the stretch-dominated structure. The three metamaterial structures were re-tested after shape recovery. Significant strengthening was observed for all structures, with the bend-stretch-dominated structure strengthening to the highest degree. This st

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Mehendale, Saahil V., Liliana F. Mellor, Michael A. Taylor, Elizabeth G. Loboa, and Rohan A. Shirwaiker. "Effects of 3D-bioplotted polycaprolactone scaffold geometry on human adipose-derived stem cell viability and proliferation." Rapid Prototyping Journal 23, no. 3 (2017): 534–42. http://dx.doi.org/10.1108/rpj-03-2016-0035.

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Purpose This study aims to investigate the effect of three-dimensional (3D)- bioplotted polycaprolactone (PCL) scaffold geometry on the biological and mechanical characteristics of human adipose-derived stem cell (hASC) seeded constructs. Design/methodology/approach Four 3D-bioplotted scaffold disc designs (Ø14.5 × 2 mm) with two levels of strand–pore feature sizes and two strand laydown patterns (0°/90° or 0°/120°/240°) were evaluated for hASC viability, proliferation and construct compressive stiffness after 14 days of in vitro cell culture. Findings Scaffolds with the highest porosity (smal

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Finley, Matthew G., Broderick S. Schwartz, Jacob Y. Nishimura, Bernice Kubicek, and Tyler Bell. "SCDeep: Single-Channel Depth Encoding for 3D-Range Geometry Compression Utilizing Deep-Learning Techniques." Photonics 9, no. 7 (2022): 449. http://dx.doi.org/10.3390/photonics9070449.

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Recent advances in optics and computing technologies have encouraged many applications to adopt the use of three-dimensional (3D) data for the measurement and visualization of the world around us. Modern 3D-range scanning systems have become much faster than real-time and are able to capture data with incredible precision. However, increasingly fast acquisition speeds and high fidelity data come with increased storage and transmission costs. In order to enable applications that wish to utilize these technologies, efforts must be made to compress the raw data into more manageable formats. One c

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Menegozzo, Marco, Andrés Cecchini, Frederick A. Just-Agosto, et al. "A 3D-Printed Honeycomb Cell Geometry Design with Enhanced Energy Absorption under Axial and Lateral Quasi-Static Compression Loads." Applied Mechanics 3, no. 1 (2022): 296–312. http://dx.doi.org/10.3390/applmech3010019.

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This work presents an innovative honeycomb cell geometry design with enhanced in-plane energy absorption under quasi-static lateral loads. Numerical and experimental compression tests results under axial and lateral loads are analyzed. The proposed cell geometry was designed to overcome the limitations posed by standard hexagonal honeycombs, which show relatively low stiffness and energy absorption under loads that have a significant lateral component. To achieve this, the new cell geometry was designed with internal diagonal walls to support the external walls, increasing its stiffness and im

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Yu, Jiawen, Jin Wang, Longhua Sun, Mu-En Wu, and Qing Zhu. "Point Cloud Geometry Compression Based on Multi-Layer Residual Structure." Entropy 24, no. 11 (2022): 1677. http://dx.doi.org/10.3390/e24111677.

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Point cloud data are extensively used in various applications, such as autonomous driving and augmented reality since it can provide both detailed and realistic depictions of 3D scenes or objects. Meanwhile, 3D point clouds generally occupy a large amount of storage space that is a big burden for efficient communication. However, it is difficult to efficiently compress such sparse, disordered, non-uniform and high dimensional data. Therefore, this work proposes a novel deep-learning framework for point cloud geometric compression based on an autoencoder architecture. Specifically, a multi-laye

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Nguyen, Q. T., Emmanuelle Vidal-Sallé, Philippe Boisse, et al. "Analyses of Textile Composite Reinforcement Compaction at the Mesoscopic Scale." Key Engineering Materials 611-612 (May 2014): 356–62. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.356.

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Mesoscopic simulations of the transverse compression of textile preforms are presented in this paper. They are based on 3D FE models of each yarn in contact with friction with its neighbours. The mesoscopic simulations can be used as virtual compression tests. In addition they determine the internal geometry of the reinforcement after compaction. The internal geometry can be used to compute the permeability of the deformed reinforcement and to calculate the homogenised mechanical properties of the final composite part. A hypoelastic model based on the fibre rotation depicts the mechanical beha

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Broderick S., Schwartz, Finley Matthew G., and Bell Tyler. "Feature-driven 3D range geometry compression via spatially-aware depth encoding." Electronic Imaging 34, no. 17 (2022): 224–1. http://dx.doi.org/10.2352/ei.2022.34.17.3dia-224.

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Lee, Jong-Seok, Sung-Yul Choe, and Seung-Yong Lee. "Compression of 3D Mesh Geometry and Vertex Attributes for Mobile Graphics." Journal of Computing Science and Engineering 4, no. 3 (2010): 207–24. http://dx.doi.org/10.5626/jcse.2010.4.3.207.

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Yang, BaiLin, JianQiu Jing, Xun Wang, and JianWei Han. "3D geometry-dependent texture map compression with a hybrid ROI coding." Science China Information Sciences 57, no. 2 (2013): 1–15. http://dx.doi.org/10.1007/s11432-013-4897-3.

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Gupta, Sumit, Kuntal Sengupta, and Ashraf A. Kassim. "Compression of Dynamic 3D Geometry Data Using Iterative Closest Point Algorithm." Computer Vision and Image Understanding 87, no. 1-3 (2002): 116–30. http://dx.doi.org/10.1006/cviu.2002.0987.

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Xu, Tao, De Liang Zhu, and Hao Kui Tang. "Wavelet Based Progressive Compression and Transmission of 3D Object." Advanced Materials Research 271-273 (July 2011): 383–88. http://dx.doi.org/10.4028/www.scientific.net/amr.271-273.383.

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A novel algorithm of progressive compression and transmission based on wavelet transform is proposed in this paper, which deals with the connectivity of the original mesh and consequently reconstructs the basic topological relations of base mesh. Not only the spatial correlations between different levels of details but also the time correlations are exploited to enhance the compression ratio. A concept of ‘frame’, which represents different levels of details at different time, is introduced, and compression mode of ‘F+3D’ (a 3D mesh within a temporal frame) is then achieved. The temporal corre

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Janusziewicz, Rima, and Janus S. Rahima Benhabbour. "3466 Innovative 3D Printed Intravaginal Rings: Developing AnelleO PRO, the First Intravaginal Ring for Infertility." Journal of Clinical and Translational Science 3, s1 (2019): 58. http://dx.doi.org/10.1017/cts.2019.137.

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OBJECTIVES/SPECIFIC AIMS: The study aims to develop and test a biocompatible 3D-printed IVRs for the mechanical and release properties of a model drug, β-estradiol, then translate these methods to the target drug, progesterone. The goals include demonstrating decoupling of mechanical and release properties of the rings, release profiles driven by geometry and efficacy in sheep animal models to evaluate device safety. METHODS/STUDY POPULATION: A novel 3D-printing platform, continuous liquid interface production (CLIP), pioneered by Carbon, enables the fabrication of complex designs on a timesca

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Koibuchi, H., S. Hongo, F. Kato, et al. "Monte Carlo studies on shape deformation and stability of 3D skyrmions under mechanical stresses." Journal of Physics: Conference Series 2090, no. 1 (2021): 012080. http://dx.doi.org/10.1088/1742-6596/2090/1/012080.

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Abstract We study the stability/instability of skyrmions under mechanical stresses by Monte Carlo simulations in a 3D disk composed of tetrahedrons. Skyrmions emerge in chiral magnetic materials, such as FeGe and MnSi, under the competition of ferromagnetic interaction (FMI) and Dzyaloshinskii-Moriya interaction (DMI) and are stabilized by the external magnetic field. Recent experimental studies show that skyrmions are also stabilized/destabilized by uniaxial compressive stress perpendicular to or along the magnetic field direction. These phenomena are studied by using a 3D Finsler geometry (F

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Zängler, Wibke, Robert Keller, and Matthias Wessling. "Production of Novel Tubular Electrochemical Hydrogen Compressor." ECS Meeting Abstracts MA2023-02, no. 38 (2023): 1850. http://dx.doi.org/10.1149/ma2023-02381850mtgabs.

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For most applications, especially transport, hydrogen needs to be compressed due to its low volumetric density. Conventionally, mechanical compressors are used for hydrogen compression, but they possess disadvantages such as high maintenance due to moving parts and a limited one-stage compression ratio. A promising technology to overcome those obstacles is electrochemical hydrogen compression, in which hydrogen is compressed in an electrochemical membrane reactor. To date, only planar electrochemical reactors for hydrogen compression have been investigated although tubular designs offer advant

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Shen, Fei, Shangqin Yuan, Yanchunni Guo, et al. "Energy Absorption of Thermoplastic Polyurethane Lattice Structures via 3D Printing: Modeling and Prediction." International Journal of Applied Mechanics 08, no. 07 (2016): 1640006. http://dx.doi.org/10.1142/s1758825116400068.

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This work investigates the energy absorption capacity of polymeric lattice structures through a systemic manufacturing, testing and modeling approaches. The lattice structures are designed to possess periodic cubic geometry with optimized spherical shells located at the cubic corners, and thermoplastic polyurethane (TPU) powders are used to fabricate such structures via selective laser sintering, a type of powder-based 3D printing technology. A hyperelastic model that considers the mullins effect and describes the cyclic compression stress–strain behavior of TPU is developed to simulate the me

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Elenskaya, Nataliya V., Mikhail A. Tashkinov, and Vadim V. Silberschmidt. "Numerical modelling of the deformation behaviour of polymer lattice structures with density gradient based on additive technologies." Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy 9, no. 4 (2022): 679–92. http://dx.doi.org/10.21638/spbu01.2022.410.

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The mechanical behavior of gradient lattice structures whose geometry is based on the analytic definition of three-dimensional triply periodic minimal surfaces (TPMS) is investigated. Several homogeneous and gradient lattice models with different types of representative volume geometry and gradient parameters are considered. The numerical models are validated with data obtained experimentally using the Vic-3D video system. The results of numerical simulation of the deformation behaviour of gradient structures with the Shoen G (gyroid) TPMP geometry under uniaxial compression are presented. The

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Wolski, Krzysztof, Laura Trutoiu, Zhao Dong, Zhengyang Shen, Kevin Mackenzie, and Alexandre Chapiro. "Geo-Metric." ACM Transactions on Graphics 41, no. 6 (2022): 1–13. http://dx.doi.org/10.1145/3550454.3555475.

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In this work we take a novel perception-centered approach to quantify distortions on 3D geometry of faces, to which humans are particularly sensitive. We generated a dataset, composed of 100 high-quality and demographically-balanced face scans. We then subjected these meshes to distortions that cover relevant use cases in computer graphics, and conducted a large-scale perceptual study to subjectively evaluate them. Our dataset consists of over 84,000 quality comparisons, making it the largest ever psychophysical dataset for geometric distortions. Finally, we demonstrated how our data can be us

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Rochlitz, Bence, and Dávid Pammer. "Design and Analysis of 3D Printable Foot Prosthesis." Periodica Polytechnica Mechanical Engineering 61, no. 4 (2017): 282. http://dx.doi.org/10.3311/ppme.11085.

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3D printing manufacturing process has the possibilities to produce individual medical devices, especially implants and prosthesis with short production time. The aim of this study is to design a 3D printable Energy Storage and Return (ESAR) foot prosthesis for transtibial amputees with a novel geometry. The criteria of the prosthesis were 3D printable, low cost, simply geometry and satisfying mechanical properties for low activity use. The finite element analysis of the designed foot prosthesis was conducted in each of the three support phases of the walking cycle (controlled plantarflexion, c

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Maszybrocka, Joanna, Bartosz Gapiński, Michał Dworak, Grzegorz Skrabalak, and Andrzej Stwora. "The manufacturability and compression properties of the Schwarz Diamond type Ti6Al4V cellular lattice fabricated by selective laser melting." International Journal of Advanced Manufacturing Technology 105, no. 7-8 (2019): 3411–25. http://dx.doi.org/10.1007/s00170-019-04422-6.

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Abstract Selective laser melting technology makes it possible to produce 3D cellular lattice structures with controlled porosity. The paper reflects to machining and examination of structures with predefined distribution, shape and size of the pores. In the study, the porous structures of Ti6Al4V were investigated. The tests were carried out using structures of spatial architecture of Schwarz D TPMS geometry with a total porosity of 60% and 80% and various pore sizes. Dimensional accuracy of additively manufactured structures was measured in relation to the 3D model. Geometry of the final stru

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