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Artykuły w czasopismach na temat „Ogre 3D (Computer file)”

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Data publikacji: 26 lipca 2024

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1

Wang, Xin, Jing Zhang, Shun De Gao, and Di Wu. "A 3D Modeling System for Construction Work Simulation Based on Rendering and Dynamic Engines." Advanced Materials Research 97-101 (March 2010): 3455–58. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.3455.

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Modeling System for Construction task Simulation (MSCS) presented in this paper is a 3D computer-aided drawing tool which is designed for construction task planners. It is based on OGRE (Object-oriented Graphics Rendering Engine) and Bullet Dynamic Engine, therefore the model created by MSCS has both geometric and dynamic properties. MSCS has already been used in Crawler Crane’s Lifting Simulation System which is developed by Dalian University of Technology in China to draw the work environment and the loads to be lifted.

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Wei, Yu Qing, Xing Gao, and Jing Hua Gao. "Virtools Based Development of Computer Experiment." Advanced Materials Research 756-759 (September 2013): 2887–91. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.2887.

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Virtools is a set of integrated 2D graphic images, 3D models, audio, video, and so a variety of file formats, interactive software itself has a wealth of interactive behavior module, 3D games can be created, virtual experiments simulation objects very strong interaction with the display and other three-dimensional product. This paper presents a virtual experiment based on 3D and Virtools technology, which is built with 3D experiments scenes, making 3D animation; with Virtools data processing, interactive control. The experiments show that this method has the authenticity, interactivity, simple

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Setiawan, Budhy, Isa Triyanti Santoso, Achmad Walid, Ryan Prasetyo, Delila Cahya Permatasari, and Virna Umro Audiana. "Aplikasi solidwork untuk rancangan CAD 3D pada mesin 3D printer 2x2x2 meter." JURNAL ELTEK 19, no. 2 (2021): 9. http://dx.doi.org/10.33795/eltek.v19i2.283.

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ABSTRAK Mesin 3D printing dapat membuat proses produksi menjadi singkat dan sederhana, keunggulan ini menjadikan banyak peneliti mulai menggembangkan mesin printing. Pengembangan mesin printing yang sudah dilakukan salah satunya adalah mesin 3D printer 2 x 2 x 2 meter. Keberhasilan mesin printing dapat dilihat dari hasil printing yang sesuai dengan desain yang diharapkan. Oleh karena itu, diperlukan aplikasi yang dapat membantu merancang desain objek 3D pada mesin printer 2x2x2 meter, salah satunya menggunakan aplikasi CAD (Computer Aided Design) “SolidWork”. Aplikasi “SolidWork” bersifa

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Aishwarya, Y., B. Gourangi, and K. Abhijeet. "3D-BIOPRINTING (Application of 3D printer for Organ Fabrication)." International Journal of Students' Research in Technology & Management 3, no. 5 (2015): 346. http://dx.doi.org/10.18510/ijsrtm.2015.351.

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Chronic shortage of human organs for transplantation has become more problematic in spite of major development in transplant technologies. In 2009, only 27,996 (18%) of 154,324 patients received organs and 8,863 (25 per day) died while on the waiting list. As of early 2014, approximately 120,000 people in the U.S. were awaiting an organ transplant. The solution to this problem is 3D bio-printing. This technology may provide a unique and new opportunity where we can print 3D organs. It incorporates two technologies, tissue engineering and 3D printing. 3D bioprinting involves dispensing cells on

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Muhammad Nur Farhan Saniman, Muhammad Ibrahim Yahya, Nurul Nadiah Mahmud, et al. "3D Printing Parameters Optimization of ABS Probe Holder for Ultrasonic Scanner." Journal of Advanced Research in Applied Sciences and Engineering Technology 48, no. 2 (2024): 10–15. http://dx.doi.org/10.37934/araset.48.2.1015.

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In recent years, 3D printing technology has received a lot of attention. The use of 3D printing technology in many industries is widely accepted due to its low cost of production and capacity to manufacture complex and geometrical shapes. This paper presents the fabrication of probe holder by using 3D printing technology for ultrasonic scanner application. The fabrication of 3D printed probe holder began with the Taguchi technique design of experiment (DOE). Three major effects were identified: printing temperature, layer thickness and infill density. Solidworks software was employed to build

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Xin, Yufeng, Dongliang Zhang, and Guopeng Qiu. "Real-Time Animation Complexity of Interactive Clothing Design Based on Computer Simulation." Complexity 2021 (May 11, 2021): 1–11. http://dx.doi.org/10.1155/2021/9988623.

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With the innovation of computer, virtual clothing has also emerged. This research mainly discusses the real-time animation complex of interactive clothing design based on computer simulation. In the process of realizing virtual clothing, the sample interpolation synthesis method is used, and the human body sample library is constructed using the above two methods (primitive construction method and model reconstruction method) first, and then, the human body model is obtained by interpolation calculation according to the personalized parameters. Building a clothing model is particularly importa

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7

Wang, Chung Shing, Teng Ruey Chang, Wei Hua A. Wang, and Man Ching Lin. "Rapid Prototyping STL Reconstruction for CT Medical Image in Fused Deposition Modelling." Key Engineering Materials 443 (June 2010): 522–27. http://dx.doi.org/10.4028/www.scientific.net/kem.443.522.

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The main objective of this research is to reconstruct 3D rapid prototyping (RP) models for computer tomography (CT) medical images in fused deposition modeling (FDM). It demonstrates a technique to convert medical images to points cloud, and simplify into STL (Stereo-Lithography) triangular meshes for RP machine in fused deposition modelling. The grey prediction algorithm is used to sort contour point data in each layer of the medical image. The contour difference detection operation is used to sequence the points for each layer. The 3D STL meshes are then constructed by layer-by-layer sequenc

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8

Wang, Yuye, Guofeng Zhang, and Xiaoguang Hu. "Large-scale scene real-time infrared simulation based on texture blending." International Journal of Intelligent Computing and Cybernetics 9, no. 4 (2016): 406–15. http://dx.doi.org/10.1108/ijicc-07-2016-0024.

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Purpose Infrared simulation plays an important role in small and affordable unmanned aerial vehicles. Its key and main goal is to get the infrared image of a specific target. Infrared physical model is established through a theoretical research, thus the temperature field is available. Then infrared image of a specific target can be simulated properly while taking atmosphere state and effect of infrared imaging system into account. For recent years, some research has been done in this field. Among them, the infrared simulation for large scale is still a key problem to be solved. In this passag

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Altieri, Federica, Giovanna Iezzi, Valeria Luzzi, Gianni Di Giorgio, Antonella Polimeni, and Michele Cassetta. "Computer-Guided Bone Biopsy: A Technical Note with the Description of a Clinical Case." Bioengineering 8, no. 12 (2021): 214. http://dx.doi.org/10.3390/bioengineering8120214.

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Aim: The aim of this technical note is to present a computer-aided design–computer-aided manufacturing (CAD–CAM) surgical guide to perform a computer-guided bone biopsy. Traditionally, to diagnose abnormal conditions affecting jawbone, a bone biopsy is performed with the use of a trephine bur. The positioning of the bur, during the biopsy, is based on the skill of the surgeon; therefore, an inaccurate placement of a trephine bur may occur. The use of a guide, however, can minimize this risk and achieve a better result. Materials and Methods: To determine the site and the extension of bone samp

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10

Guo, An, Zhan Zhang, Feng Gao, Haichao Du, Xiaokui Liu, and Bang Li. "Applications of Convolutional Neural Networks to Extracting Oracle Bone Inscriptions from Three-Dimensional Models." Symmetry 15, no. 8 (2023): 1575. http://dx.doi.org/10.3390/sym15081575.

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In recent years, high-fidelity three-dimensional (3D) oracle bone models (3D-OBMs) have received extensive attention from oracle bone experts due to their unparalleled reducibility to real oracle bone. In the research process of 3D-OBMs, the first procedure is to extract oracle bone inscriptions (OBIs) from the model to form individual oracle bone characters (OBCs). However, the manual extraction of OBIs is a time-consuming and labor-intensive task that relies heavily on oracle bone knowledge. To address these problems, we propose a texture-mapping-based OBI extractor (tm-OBIE), which leverage

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11

Karpiuk, Michał, Maciej Malik, Magdalena Przytocka, Katarzyna Czajkowska-Sabat, and Witold Sujka. "Computer aided manufacturing of compression garments used for rehabilitation of burn and post-operative scars." Mechanik 92, no. 1 (2019): 55–57. http://dx.doi.org/10.17814/mechanik.2019.1.11.

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The article describes a computer-aided manufacturing of compression garments used for rehabilitation of burn and post-operative scars implemented in Tricomed S.A company. Steps of manufacturing processes include 3D scanning, obtaining control parameters for a self-generating CAD templates from STL file, conversion control parameters depending on the degree of compression and type of knitwear, generating DXF files for the cutting machine, sewing.

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12

Weijun, Yu. "3D Indoor Scene Synthesis System Based on Collaborative Retrieval." Wireless Communications and Mobile Computing 2022 (August 21, 2022): 1–11. http://dx.doi.org/10.1155/2022/3178571.

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In order to solve the research problem of collaborative retrieval 3D indoor scene synthesis system, an automatic synthesis method of 3D indoor scene is proposed. In the research fields of computer graphics and computer vision, the modeling of various 3D scenes has always been a hot spot and a very valuable research topic for Chinese and foreign scholars. GMM is used to fit the position of the object on the support surface, and the position distribution model is obtained. Firstly, a file is created to store the normalized position of the counted object on the support surface. The number of coor

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13

Korbel, Jakob J., Umar H. Siddiq, and Rüdiger Zarnekow. "Towards Virtual 3D Asset Price Prediction Based on Machine Learning." Journal of Theoretical and Applied Electronic Commerce Research 17, no. 3 (2022): 924–48. http://dx.doi.org/10.3390/jtaer17030048.

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Although 3D models are today indispensable in various industries, the adequate pricing of 3D models traded on online platforms, i.e., virtual 3D assets, remains vague. This study identifies relevant price determinants of virtual 3D assets through the analysis of a dataset containing the characteristics of 135.384 3D models. Machine learning algorithms were applied to derive a virtual 3D asset price prediction tool based on the analysis results. The evaluation revealed that the random forest regression model is the most promising model to predict virtual 3D asset prices. Furthermore, the findin

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14

Resti Dyah Ayu Retno Palupi, Budhy Setiawan, and Agus Pracoyo. "Kontrol High Speed Extruder pada 3D Printer 2x2x2 Meter Berbasis MCU Bigtree." Jurnal Elektronika dan Otomasi Industri 11, no. 1 (2024): 95–104. http://dx.doi.org/10.33795/elkolind.v11i1.3516.

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3D printer merupakan suatu inovasi terbaru dalam dunia teknologi. Industri manufaktur saat ini mengalami kemajuan pesat dan 3D printer menjadi salah satu alat yang berguna dalam industri tersebut. Alat ini dapat mencetak benda-benda tiga dimensi dari gambar CAD (Computer Aid Design). Di Indonesia, 3D printer digunakan untuk membuat prototype dengan cepat sehingga mempercepat pengembangan produk baru. Tahapan pembuatan prototype dengan 3D printer meliputi pengolahan file digital, proses slicer, dan G-Code, hingga menjadi objek benda nyata berbentuk 3D. Agar dapat bekerja dengan efisien, 3D prin

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15

Kong, Chao, Yuanping Xu, Zhuowei Li, et al. "A Multivariate Local Descriptor Registration Method for Surface Topography Evaluation." Applied Sciences 13, no. 5 (2023): 3311. http://dx.doi.org/10.3390/app13053311.

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This paper illustrates a systematical surface topography measurement and evaluation method based on a 3D optical system. Firstly, the point cloud data of the workpiece are extracted by the use of a 3D structured light measurement system, and the STEP file of the design model is converted into point cloud data. Secondly, the local measurement point cloud (LMPC) and digital model point cloud (DMPC) are registered by a multivariate local descriptor registration scheme proposed in this study. Thirdly, the surface shapes extracted from the STEP file are applied as a reference to segment the measuri

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16

Lee, Mun-yong, Sang-ha Lee, Kye-dong Jung, Seung-hyun Lee, and Soon-chul Kwon. "A Novel Preprocessing Method for Dynamic Point-Cloud Compression." Applied Sciences 11, no. 13 (2021): 5941. http://dx.doi.org/10.3390/app11135941.

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Computer-based data processing capabilities have evolved to handle a lot of information. As such, the complexity of three-dimensional (3D) models (e.g., animations or real-time voxels) containing large volumes of information has increased exponentially. This rapid increase in complexity has led to problems with recording and transmission. In this study, we propose a method of efficiently managing and compressing animation information stored in the 3D point-clouds sequence. A compressed point-cloud is created by reconfiguring the points based on their voxels. Compared with the original point-cl

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17

Sari, Dewi Mutiara, and Vina Wahyuni Eka Putranti. "3D Object Pose Estimation Using Chamfer Matching and Flexible CAD File Base." International Journal on Advanced Science, Engineering and Information Technology 10, no. 2 (2020): 461. http://dx.doi.org/10.18517/ijaseit.10.2.8336.

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Tanwar, Rohit, Urmila Pilania, Mazdak Zamani, and Azizah Abdul Manaf. "An Analysis of 3D Steganography Techniques." Electronics 10, no. 19 (2021): 2357. http://dx.doi.org/10.3390/electronics10192357.

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Steganography has become a preferred technique these days to successfully hide secret messages. Various research has been done in the past to justify and analyze suitable types of cover file, such as images, audio, videos, etc. Advancement in the image-processing domain has opened various possibilities of using three-dimensional (3D) images as cover files. In this paper, a systematic study of the research work done on 3D steganography in the last fifteen years has been carried out. The study is divided into different sections based on the types of algorithms used, additional security features,

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You, Zhenghao. "Fundamental ray tracing project based on OpenGL with acceleration." Journal of Physics: Conference Series 2646, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1742-6596/2646/1/012001.

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Abstract In 3D computer graphics, ray tracing is an essential technique for modeling light transport for use in a wide variety of rendering algorithms for generating digital images. And it is also an important subject for computer science students who want to discover more in Computer Graphics and image rendering. In this project the author implemented a fundamental light tracing system based on C++ in visual studio. It is able to render a delicate image with an input of a nnf model file, and output a ppm file, as a final assignment of a student computer graphics research program. This paper i

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Inokoshi, Masanao, Yumika Soeda, Yo Akiyama, Kaori Ueda, Kazumasa Kubota, and Shunsuke Minakuchi. "Fully Digital Workflow for the Fabrication of Three-Dimensionally Printed Surgical Splints for Preventing Postoperative Bleeding: A Case Report." International Journal of Environmental Research and Public Health 19, no. 19 (2022): 12773. http://dx.doi.org/10.3390/ijerph191912773.

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The management of postoperative bleeding is mandatory in patients receiving anticoagulants. In this case report, we introduce a fully digital workflow for surgical splint fabrication to prevent postoperative bleeding in patients receiving anticoagulants and/or at risk of inadvertent extraction of a mobile tooth during impression making. An 87-year-old woman using apixaban had a left mandibular canine that required extraction due to chronic apical periodontitis. A digital impression was obtained using an intraoral scanner. First, the tooth to be extracted was deleted using three-dimensional (3D

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M.S. Tg Sulaiman, T., S. B. Mohamed, M. Minhat, A. S. Mohamed, and A. R. Mohamed. "Integrated Interface Development Environment using STEP Universal Data Structure." International Journal of Engineering & Technology 7, no. 2.15 (2018): 27. http://dx.doi.org/10.14419/ijet.v7i2.15.11194.

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Nowadays modern manufacturing demands advanced computer controller, having higher input language and less proprietary vendor dependencies. STEP stands for Standard for the Exchange of Product model data is the next generation of data model between CAD/CAM and CNC system. STEP is still under research and development all around the world. This paper describes the design, development and testing of an integrated Interface development environment for STEP file using Universal Data Structure, which aims to provide support for machining operation. The system also aims to provide function of reading

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Thilmany, Jean. "Ephemeral Warehouse." Mechanical Engineering 127, no. 09 (2005): 30–33. http://dx.doi.org/10.1115/1.2005-sep-1.

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This article highlights how can companies archive their 3D CAD files as their software races toward obsolescence. Digital designs, though, are created on software and computers that are outdated when they are delivered. Computer files can be hard to retrieve in as little as five years down the road. This is a big problem for the engineering community and, of course, for corporations, government agencies, and organizations that store information digitally—in short, for everyone. Most information today—not just engineering data—is created and stored digitally on computer systems that become outd

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Župan, Robert, and Stanislav Frangeš. "Automatic Procedural 3d Modelling of Buildings." Tehnički glasnik 12, no. 3 (2018): 166–73. http://dx.doi.org/10.31803/tg-20180713143638.

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The problem of modelling, especially of large-scale virtual urban environments such as city areas is today very challenging for cartographers. Cities are difficult to model in detail because of their often complex geometries. This paper describes the applied and tested new procedures for the development of a test three-dimensional urban area model using the Esri CityEngine software, which is based on procedural modelling. This process involves three steps. The first step is to collect the available data, as well as the Digital Model Relief data. The second step is to create a Computer Generate

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Hou, Yongzhu, Jihong Liu, and Gaofeng Yue. "3D Interpreted Model: A Novel Product Definition Model by Integrating and Fusing a 3D Annotated Model and Design Knowledge." Applied Sciences 11, no. 16 (2021): 7192. http://dx.doi.org/10.3390/app11167192.

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Model based definition (MBD) is the core of product digital research and development. The extension of the scope and content of the product model is an important way to improve the application ability of MBD methodology. In view of the demand of the development of the product definition method and the lack of systematic theoretical methods to support the further improvement of product model quality and ability, this paper proposes the concept of a 3D interpreted model as a new product definition model by integrating and fusing design knowledge on the basis of the MBD model. Firstly, the concep

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Liu, Jin. "Application of Computer 3D Modeling Technology in Graphic Image Design." Computational Intelligence and Neuroscience 2022 (July 16, 2022): 1–6. http://dx.doi.org/10.1155/2022/6451339.

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In order to solve the problem that the manual input data work efficiency is low and the optimization cannot be achieved in the section modulus calculation, the author proposes a computer-aided 3D graphic design method for ship hull structure. First, complete the modeling of the ship hull, complete the statistical calculation of the size in the CAD platform, solve the static moment, and complete the three-dimensional modeling; Calculate the inertial load and wave load of the ship during work, and calculate the wave bending moment, and substitute it into the three-dimensional model for verificat

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Pinge*, Soham, Nitish Wadhavkar, Amey Singh, and Dr Amol Deshpande. "An Integrated Method for 3D Reconstruction, Dimensional Analysis and Manipulation of an Object Based on Image Processing." International Journal of Engineering and Advanced Technology 10, no. 4 (2021): 248–53. http://dx.doi.org/10.35940/ijeat.d2505.0410421.

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Analysis of dimensions of a product, its visualization as a 3D model & volume estimation, positively impact the operations of manufacturing department in an industry. In this paper, a system has been designed to integrate the proposed features like 3D reconstruction, dimensional analysis & support for manipulating the reconstructed model. Research was carried out to estimate the volume of objects using their virtual 3D model & allow the user to edit this model which later can be compared with the original object, for manipulation. The pictures of an object from different planes are

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Valdés-Jiménez, Alejandro, Josep-L. Larriba-Pey, Gabriel Núñez-Vivanco, and Miguel Reyes-Parada. "3D-PP: A Tool for Discovering Conserved Three-Dimensional Protein Patterns." International Journal of Molecular Sciences 20, no. 13 (2019): 3174. http://dx.doi.org/10.3390/ijms20133174.

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Discovering conserved three-dimensional (3D) patterns among protein structures may provide valuable insights into protein classification, functional annotations or the rational design of multi-target drugs. Thus, several computational tools have been developed to discover and compare protein 3D-patterns. However, most of them only consider previously known 3D-patterns such as orthosteric binding sites or structural motifs. This fact makes necessary the development of new methods for the identification of all possible 3D-patterns that exist in protein structures (allosteric sites, enzyme-cofact

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Plavitu, Anca, Mark Edward Pogarasteanu, Marius Moga, et al. "MRI versus CT as Image Data Source for 3D Printing Bone." Revista de Chimie 69, no. 10 (2018): 2881–84. http://dx.doi.org/10.37358/rc.18.10.6645.

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In orthopedics, 3D printing is a novel way of visualizing dense human tissue and structures, for example bones and ligaments, but also the respective relations between them, thus providing the surgical team with taking the preoperative planning of an intervention one step further from 3D computer reconstructions. In order for a medical 3D print reconstruction to be possible, bidimensional imaging is necessary, in the form of DICOM files. These are then used by specific software in order to create an STL file, that can then be inputted into a 3D printer and a three-dimensional replica of the de

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Camargos, Germana De Villa, Priscilla Cardoso Lazari-Carvalho, Marco Aurélio de Carvalho, Mariane Boaventura Castro, Naysa Wink Neris, and Altair Antoninha Del Bel Cury. "3D finite element model based on CT images of tooth." Brazilian Journal of Oral Sciences 19 (August 14, 2020): e208910. http://dx.doi.org/10.20396/bjos.v19i0.8658910.

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Aim: This study aimed the description of a protocol to acquire a 3D finite element (FE) model of a human maxillary central incisor tooth restored with ceramic crowns with enhanced geometric detail through an easy-to-use and low-cost concept and validate it through finite element analysis (FEA). Methods: A human maxillary central incisor was digitalized using a Cone Beam Computer Tomography (CBCT) scanner. The resulted tooth CBCT DICOM files were imported into a free medical imaging software (Invesalius) for 3D surface/geometric reconstruction in stereolithographic file format (STL). The STL fi

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Tzotzis, Anastasios, Athanasios Manavis, Nikolaos Efkolidis, and Panagiotis Kyratsis. "CAD-BASED AUTOMATED G-CODE GENERATION FOR DRILLING OPERATIONS." International Journal of Modern Manufacturing Technologies 13, no. 3 (2021): 177–84. http://dx.doi.org/10.54684/ijmmt.2021.13.3.177.

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The automated generation of G-code for machining processes is a valuable tool at the hands of every engineer and machinist. Nowadays, many software systems exist that provide automated functions related to G-code generation. Most free software require the import of a Drawing Exchange Format (DXF) file and cannot work directly on a 3D part. On the contrast, the equivalent commercially-available software systems are feature-rich and can provide a variety of automated processes, but are usually highly priced. The presented application aims to supplement the existing free Computer Aided Manufactur

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Zahariea, Dănuţ. "Computer Aided Design of Centrifugal Fan Impeller Using CATIA Software." Applied Mechanics and Materials 809-810 (November 2015): 853–58. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.853.

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In this paper, the 3D model of the centrifugal fan impeller will be obtained using CAD software (CATIA). The blade will be obtained with 4 design methods: constant blade width and variable blade angle; hyperbolic blade width and variable blade angle; hyperbolic blade width and constant blade angle; linear blade width and variable blade angle. A comparative analysis of the weight of the blade, as well as of the weight of the rotor composed by cascade of blades, front and rear shrouds will be presented. Two materials have been used for all the elements of the centrifugal fan impeller: steel and

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Pandey, Rohit, and Sandeep Salodkar. "SCIENTIFIC AND TECHNOLOGICAL CHALLENGES OF LAYER MANUFACTURING PROCESSES FOR POLYMER COMPONENTS PRODUCTION." International Journal of Students' Research in Technology & Management 8, no. 3 (2020): 26–31. http://dx.doi.org/10.18510/ijsrtm.2020.835.

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Purpose of study: Additive manufacturing processes taking the basic information form computer-aided design (CAD) file to convert into the stereolithography (STL) data file. Today additive layer manufacturing processes are playing a very vital role in manufacturing parts with high rate of effectiveness and accuracy. CAD software is approximated to sliced containing information of each layer by layer that is printed. The main purpose of the study is to discuss the scientific and technological challenges of additive layer manufacturing processes for making polymer components production through va

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Muhammad Haziq Omar, Siti Nurul Akmal Yusof, Saiful Bahri Mohamed, et al. "Milling Features Recognition Methodology of Rectangular Fillet Blind Pocket for Universal Data Structure." Journal of Advanced Research in Applied Sciences and Engineering Technology 30, no. 3 (2023): 57–68. http://dx.doi.org/10.37934/araset.30.3.5768.

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Various studies have focused on developing an interface system that could integrate the machining process with CNC (Computer Numerical Control) machine tools by producing tool paths using STEP (Standard for the Exchange of Product model data) file as an input function. Studies to recognize features in STEP file by encoding the data of geometric entities of a CAD (Computer-Aided Design) design has been done by many researchers. However, they only focus on Cutter Location (CL) which eventually describes the machining profile in the x and y planes without considering the depth of the machining fe

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Zhang, Rui, Renjie Tang, Sebastian Spintzyk, et al. "Three-Dimensional Printed Tooth Model with Root Canal Ledge: A Novel Educational Tool for Endodontic Training." Dentistry Journal 11, no. 9 (2023): 213. http://dx.doi.org/10.3390/dj11090213.

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Ledge formation presents a significant challenge in endodontic treatment. Yet, there is still a lack of educational tooth models for hands-on practice. This study aimed to create and evaluate a tooth model for ledge management practice. A natural tooth with curved roots was collected for scientific use under ethics committee approval. Following initial root canal preparation, the tooth was scanned using micro-computed tomography (μCT) and 3D reconstructed. A K-file, created via computer-aided design (CAD), was partly inserted into the root canal wall of the 3D reconstructed tooth. By subtracti

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Romanyuk, O. N., S. V. Pavlov, O. L. Bobko, E. K. Zavalnyuk, and O. O. Reshetnik. "Analysis of big data in computer graphics." Optoelectronic Information-Power Technologies 47, no. 1 (2024): 50–57. http://dx.doi.org/10.31649/1681-7893-2024-47-1-50-57.

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In this article, an overview of the aspects of big data analysis and representation in computer graphics is presented, creating new prospects for the development and improvement of applications for processing graphic information, visualization, and simulation. Thanks to advancements in data processing and analysis technologies, computer graphics can become even more realistic, interactive, and efficient. Data can come from various sources, including 3D scanning, modeling, sensors, video cameras, games, and simulations. Storing large volumes of graphic data requires effective solutions such as

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Kok, Xiao Wen, Anisha Singh, and Bahijja Tolulope Raimi-Abraham. "A Design Approach to Optimise Secure Remote Three-Dimensional (3D) Printing: A Proof-of-Concept Study towards Advancement in Telemedicine." Healthcare 10, no. 6 (2022): 1114. http://dx.doi.org/10.3390/healthcare10061114.

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Telemedicine is defined as the delivery of healthcare services at a distance using electronic means. The incorporation of 3D printing in the telemedicine cycle could result in pharmacists designing and manufacturing personalised medicines based on the electronic prescription received. Even with the advantages of telemedicine, numerous barriers to the uptake hinder the wider uptake. Of particular concern is the cyber risk associated with the remote digital transfer of the computer-aided design (CAD) file (acting as the electronic prescription) to the 3D printer and the reproducibility of the re

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Fuentes-Porto, Alba, Carlos García-Ávila, and Efraín Marrero-Salas. "Casa del Samarín, una estación de grabados rupestres en deterioro. Documentación, análisis y diagnóstico en Los Llanos de Ifara, Granadilla, Tenerife." Virtual Archaeology Review 12, no. 24 (2021): 99. http://dx.doi.org/10.4995/var.2021.13810.

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<p class="VARAbstract"><strong>Extended Abstract:</strong></p><p class="VARAbstract">In the archaeology of the Canary Islands (Spain), there are many studies based on the usage of new technologies to contribute to the identification and description of rock art engravings through high-resolution digital models (<a href="file:///L:/PC%20Port%C3%A1til%20Poli/Mis%20documentos/VAR/En%20Curso/Revisi%C3%B3n/13810/13810-60985-2-CE_jll.docx#Mart%C3%ADn_2005">Martín, 2005</a>; <a href="file:///L:/PC%20Port%C3%A1til%20Poli/Mis%20documentos/VAR/En%20Curso/Revis

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Comes, Radu, Călin Gheorghe Dan Neamțu, Cătălin Grec, Zsolt Levente Buna, Cristian Găzdac, and Liliana Mateescu-Suciu. "Digital Reconstruction of Fragmented Cultural Heritage Assets: The Case Study of the Dacian Embossed Disk from Piatra Roșie." Applied Sciences 12, no. 16 (2022): 8131. http://dx.doi.org/10.3390/app12168131.

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The most peculiar characteristic of a cultural heritage is represented by its uniqueness. To ensure that an object is preserved against environmental deterioration, vandal attacks, and accidents, modern Cultural Heritage documentation involves 3D scanning technologies. In the case of fragmented artefacts, the digitization process represents an essential prerequisite for facilitating an accurate 3D reconstruction. The aim of this research paper is to present a framework that enables an accurate digital reconstruction of fragmented or damaged artefacts using ornament stencils obtained from 3D sc

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Castellanos Mendoza, Andrea, Diego Alfonso Ahogado, and Jean Pierre Charalambos. "X3d2pov. Traductor of X3D to POV-Ray." Ingeniería e Investigación 26, no. 2 (2006): 68–74. http://dx.doi.org/10.15446/ing.investig.v26n2.19008.

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High-quality and low-quality interactive graphics represent two different approaches to computer graphics' 3D object representation. The former is mainly used to produce high computational cost movie animation. The latter is used for producing interactive scenes as part of virtual reality environments. Many file format specifications have appeared to satisfy underlying model needs; POV-ray (persistence of vision) is an open source specification for rendering photorealistic images with the ray tracer algorithm and X3D (extendable 3D) as the VRML successor standard for producing web virtual-real

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Eliášová, Hana, and Taťjana Dostálová. "3D Multislice and Cone-beam Computed Tomography Systems for Dental Identification." Prague Medical Report 118, no. 1 (2017): 14–25. http://dx.doi.org/10.14712/23362936.2017.2.

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3D Multislice and Cone-beam computed tomography (CBCT) in forensic odontology has been shown to be useful not only in terms of one or a few of dead bodies but also in multiple fatality incidents. 3D Multislice and Cone-beam computed tomography and digital radiography were demonstrated in a forensic examination form. 3D images of the skull and teeth were analysed and validated for long ante mortem/post mortem intervals. The image acquisition was instantaneous; the images were able to be optically enlarged, measured, superimposed and compared prima vista or using special software and exported as

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Rahman, Zammeri Abd, Saiful Bahri Mohamed, Mohamad Minhat, Alias Mohd, Zulkifli Abd Rahman, and Roslan Awang. "G-code converter using interface system for a STEP file (ISO 10303)." Indonesian Journal of Electrical Engineering and Computer Science 31, no. 3 (2023): 1362. http://dx.doi.org/10.11591/ijeecs.v31.i3.pp1362-1371.

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The STEP file is the “standard for the exchange of product model data,” which is usually used to exchange geometric data in boundary representation (B-rep) between different computer-aided design (CAD) platforms. These data can be fully utilized and integrated into a larger manufacturing organization, such as a computer-aided manufacturing (CAM) environment for computer numerical control (CNC) machining applications based on ISO 6983. The 3D models of 2D machining profiles were created in CAD software and saved as STEP files. The data structure was analyzed by comparing the geometric entities

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Fowlkes, Jason D., Robert Winkler, Eva Mutunga, Philip D. Rack, and Harald Plank. "Simulation Informed CAD for 3D Nanoprinting." Micromachines 11, no. 1 (2019): 8. http://dx.doi.org/10.3390/mi11010008.

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A promising 3D nanoprinting method, used to deposit nanoscale mesh style objects, is prone to non-linear distortions which limits the complexity and variety of deposit geometries. The method, focused electron beam-induced deposition (FEBID), uses a nanoscale electron probe for continuous dissociation of surface adsorbed precursor molecules which drives highly localized deposition. Three dimensional objects are deposited using a 2D digital scanning pattern—the digital beam speed controls deposition into the third, or out-of-plane dimension. Multiple computer-aided design (CAD) programs exist fo

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Matijević, Mario, Krešimir Trontl, and Domagoj Markota. "Graphical Visualisation of the MCNP Mesh Tally File." Journal of Energy - Energija 72, no. 1 (2023): 20–25. http://dx.doi.org/10.37798/2023721468.

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This paper presents an updated version of the MTV3D (Mesh Tally Visualization in 3D) program with Windows graphical user interface for visualization of the MCNP-based mesh tally files. Several improvements over the previous program version are addressing better figure export functionality ("Save as" option), switching between linear and logarithmic values on axes, dynamic figure scaling in active window, inversion of relative errors from “max” to “min” values, etc. MCNP is a well known and widely used general purpose Monte Carlo computer code for neutron, photon and electron transport simulati

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Kim, Seong-Min, Keunbada Son, Duk-Yeon Kim, and Kyu-Bok Lee. "Digital Evaluation of the Accuracy of Computer-Guided Dental Implant Placement: An In Vitro Study." Applied Sciences 9, no. 16 (2019): 3373. http://dx.doi.org/10.3390/app9163373.

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Compared to traditional implant surgical guides, computer-assisted implant surgical guides can be considered for positioning implants in the final prosthesis. These computer-assisted implant surgical guides can be easily fabricated with personal 3D printers after being designed with implant planning CAD software. Although the accuracy of computer-assisted implant surgical guides fabricated using personal 3D printers is an important factor in their clinical use, there is still a lack of research examining their accuracy. Therefore, this study evaluated the accuracy of computer-assisted implant

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COUTIÑO-MORENO, Elvis, Quirino ESTRADA, Daniel MALDONADO-ONOFRE, Alejandro RODRIGUEZ-MENDEZ, and Julio GOMEZ-GIRON. "RESOLUTION IN THE 3D MODELING OF OBJECTS FOR ADDITIVE MANUFACTURING AND REVERSE ENGINEERING – SHUTTER EFFECT." Applied Computer Science 17, no. 1 (2021): 40–52. http://dx.doi.org/10.35784/acs-2021-04.

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This article presents a proportional relationship between Shutter and the value of the resolution scanning system that allows decision making for modeling 3D parts used in reverse engineering and additive manufacturing. As a first step, the object of interest is treated to dim excessive brightness, then the object is scanned (by point cloud or mesh) with the use of a Handyscan 700 scanner. The point cloud is processed with the Geomagic software Desing X to generate a CAD image and a “.stl” file for 3D printing.

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Chen, Y. H., C. T. Ng, and Y. Z. Wang. "Generation of an STL File from 3D Measurement Data with User-Controlled Data Reduction." International Journal of Advanced Manufacturing Technology 15, no. 2 (1999): 127–31. http://dx.doi.org/10.1007/s001700050049.

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Gideon, Samuel, and Taat Guswantoro. "OPTIMASI CITRA DICOM DENGAN MENGGUNAKAN APLIKASI PADA SMARTPHONE ANDROID." Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 3 (February 28, 2019): 258. http://dx.doi.org/10.20961/prosidingsnfa.v3i0.28558.

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<p class="AbstractEnglish"><strong>Abstract:</strong> A radiographic image is generated from a mapping of attenuation of the X-ray beam that passed through a material. Over the past few years, as computer acquisition technology has grown, conventional diagnostic medical imaging modalities have increasingly been replaced by digital imagery. Computed radiography (CR) is one of radiographic image acquisition using computers. CR images could be either .jpg files or DICOM files. We exposed some wrenches which diameter of 5.68 mm; 3.99 mm and 3.2 mm as well as a bottle and a circul

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Ben hadj Hassine, Salem, Sami Chatti, Borhen Louhichi, and Abdennour Seibi. "Experimental Study of the Tensile Behavior of Structures Obtained by FDM 3D Printing Process." Polymers 16, no. 11 (2024): 1562. http://dx.doi.org/10.3390/polym16111562.

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Fused Deposition Modelling (FDM) is one of the layer-based technologies that fall under the umbrella term “Additive Manufacturing”, where the desired part is created through the successive layer-by-layer addition process with high accuracy using computer-aided design data. Additive manufacturing technology, or as it is commonly known, 3D (three-dimensional) printing, is a rapidly growing sector of manufacturing that is incorporated in automotive, aerospace, biomedical, and many other fields. This work explores the impact of the Additive Manufacturing process on the mechanical proprieties of th

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Ferla, Matteo P., Alistair T. Pagnamenta, David Damerell, Jenny C. Taylor, and Brian D. Marsden. "MichelaNglo: sculpting protein views on web pages without coding." Bioinformatics 36, no. 10 (2020): 3268–70. http://dx.doi.org/10.1093/bioinformatics/btaa104.

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Abstract Motivation The sharing of macromolecular structural information online by scientists is predominantly performed via 2D static images, since the embedding of interactive 3D structures in webpages is non-trivial. Whilst the technologies to do so exist, they are often only implementable with significant web coding experience. Results Michelaɴɢʟo is an accessible and open-source web-based application that supports the generation, customization and sharing of interactive 3D macromolecular visualizations for digital media without requiring programming skills. A PyMOL file, PDB file, PDB ide

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Huang, H., C. Hu, F. Zhang, and H. Xue. "RESEARCH ON VISUALIZATION OF GROUND LASER RADAR DATA BASED ON OSG." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3 (April 30, 2018): 595–99. http://dx.doi.org/10.5194/isprs-archives-xlii-3-595-2018.

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Three-dimensional (3D) laser scanning is a new advanced technology integrating light, machine, electricity, and computer technologies. It can conduct 3D scanning to the whole shape and form of space objects with high precision. With this technology, you can directly collect the point cloud data of a ground object and create the structure of it for rendering. People use excellent 3D rendering engine to optimize and display the 3D model in order to meet the higher requirements of real time realism rendering and the complexity of the scene. OpenSceneGraph (OSG) is an open source 3D graphics engin

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