Academic literature on the topic '3D Line sets'

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Journal articles on the topic "3D Line sets"

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Kamgar-Parsi, B., and B. Kamgar-Parsi. "Algorithms for matching 3d line sets." IEEE Transactions on Pattern Analysis and Machine Intelligence 26, no. 5 (2004): 582–93. http://dx.doi.org/10.1109/tpami.2004.1273930.

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Günther, Tobias, Christian Rössl, and Holger Theisel. "Hierarchical opacity optimization for sets of 3D line fields." Computer Graphics Forum 33, no. 2 (2014): 507–16. http://dx.doi.org/10.1111/cgf.12336.

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Kanzler, Mathias, Marc Rautenhaus, and Rudiger Westermann. "A Voxel-Based Rendering Pipeline for Large 3D Line Sets." IEEE Transactions on Visualization and Computer Graphics 25, no. 7 (2019): 2378–91. http://dx.doi.org/10.1109/tvcg.2018.2834372.

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Kamgar-Parsi, B., and B. Kamgar-Parsi. "Matching sets of 3D line segments with application to polygonal arc matching." IEEE Transactions on Pattern Analysis and Machine Intelligence 19, no. 10 (1997): 1090–99. http://dx.doi.org/10.1109/34.625109.

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Zhou, M., K. Y. Li, J. H. Wang, et al. "AUTOMATIC EXTRACTION OF POWER LINES FROM UAV LIDAR POINT CLOUDS USING A NOVEL SPATIAL FEATURE." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-2/W7 (September 16, 2019): 227–34. http://dx.doi.org/10.5194/isprs-annals-iv-2-w7-227-2019.

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<p><strong>Abstract.</strong> UAV LiDAR systems have unique advantage in acquiring 3D geo-information of the targets and the expenses are very reasonable; therefore, they are capable of security inspection of high-voltage power lines. There are already several methods for power line extraction from LiDAR point cloud data. However, the existing methods either introduce classification errors during point cloud filtering, or occasionally unable to detect multiple power lines in vertical arrangement. This paper proposes and implements an automatic power line extraction method bas
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Kurz, Franz, Seyed Azimi, Chun-Yu Sheu, and Pablo d’Angelo. "Deep Learning Segmentation and 3D Reconstruction of Road Markings Using Multiview Aerial Imagery." ISPRS International Journal of Geo-Information 8, no. 1 (2019): 47. http://dx.doi.org/10.3390/ijgi8010047.

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The 3D information of road infrastructures is growing in importance with the development of autonomous driving. In this context, the exact 2D position of road markings as well as height information play an important role in, e.g., lane-accurate self-localization of autonomous vehicles. In this paper, the overall task is divided into an automatic segmentation followed by a refined 3D reconstruction. For the segmentation task, we applied a wavelet-enhanced fully convolutional network on multiview high-resolution aerial imagery. Based on the resulting 2D segments in the original images, we propos
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Du, Xuan, Zong Bin Li, and Guo Hui Zhang. "Optimization of Printed Circuit Board Assignment and Component Allocation in Assembly Line." Advanced Materials Research 97-101 (March 2010): 2455–58. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.2455.

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The assembly optimization problem of multiple printed circuit board (PCB) tasks is analyzed, and an optimal model is formulated to balance the workload in decoupled PCB assembly line. Combined with polychromatic sets and genetic algorithm (GA), an integrated methodology is developed to solve the PCB assignment and component allocation simultaneously. Based on polychromatic sets theory, a 3D numerical contour matrix is presented to describe the characters of PCB, component and machine and the constraint of machine and process, and a constraint model is formulated. Constraint model guarantees th
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Zhao, Weizhao, Myron D. Ginsberg, and David W. Smith. "Three-Dimensional Quantitative Autoradiography by Disparity Analysis: Theory and Application to Image Averaging of Local Cerebral Glucose Utilization." Journal of Cerebral Blood Flow & Metabolism 15, no. 4 (1995): 552–65. http://dx.doi.org/10.1038/jcbfm.1995.69.

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Traditional autoradiographic image analysis has been restricted to the two-dimensional assessment of local cerebral glucose utilization (LCMRglc) or blood flow in individual brains. It is advantageous, however, to generate an entire three-dimensional (3D) data set and to develop the ability to map replicate images derived from multiple studies into the same 3D space, so as to generate average and standard deviation images for the entire series. We have developed a novel method, termed “disparity analysis,” for the alignment and mapping of autoradiographic images. We present the theory of this
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Lin, Li-Chieh J., Ray Y. Chuang, Chih-Heng Lu, Kuo-En Ching, and Chien-Liang Chen. "Derivation of 3D Coseismic Displacement Field from Integrated Azimuth and LOS Displacements for the 2018 Hualien Earthquake." Remote Sensing 16, no. 7 (2024): 1159. http://dx.doi.org/10.3390/rs16071159.

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A 3D surface deformation field for an earthquake can aid in understanding fault behaviors and earthquake mechanisms. However, SAR-based 3D surface deformation estimates are often limited by insufficient observations and hampered by various error sources. In this study, we demonstrate the derivation of a 3D coseismic displacement field from different InSAR processing algorithms. The azimuth displacements from Multiple Aperture Interferometry (MAI) and Pixel Offset Tracking (POT) were integrated to ensure reliable displacements at low coherent areas. The 3D displacement field was inverted pixel-
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An, Su-Yong, Lae-Kyoung Lee, and Se-Young Oh. "Line segment-based fast 3D plane extraction using nodding 2D laser rangefinder." Robotica 33, no. 08 (2014): 1751–74. http://dx.doi.org/10.1017/s0263574714000927.

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SUMMARYThree-dimensional (3D) data processing has applications in solving complex tasks such as object recognition, environment modeling, and robotic mapping and localization. Because using raw 3D data without preprocessing is very time-consuming, extraction of geometric features that describe the environment concisely is essential. In this sense, a plane can be a suitable geometric feature due to its simplicity of extraction and the abundance in indoor environments. This paper presents an online incremental plane extraction method using line segments for indoor environments. Our data collecti
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Dissertations / Theses on the topic "3D Line sets"

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Schertzer, Jérémie. "Exploiting modern GPUs architecture for real-time rendering of massive line sets." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAT037.

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Dans cette thèse, nous considérons des grands ensembles de lignes générés à partir de tractogrammes cérébraux. Ils décrivent des connexions neuronales représentées par des millions de fibres poly-lignes, comptant des milliards de segments. Grâce au mesh shader pipeline, nous construisons un moteur de rendu de tractogrammes aux performances surpassant l'état de l'art de deux ordres de grandeur.Nos performances proviennent des fiblets : une représentation compressée de blocs de segments. En combinant cohérence temporelle et dilatation morphologique du z-buffer, nous définissons un test d'occlusi
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Kanzler, Mathias [Verfasser], Rüdiger [Akademischer Betreuer] Westermann, Kai [Gutachter] Lawonn, and Rüdiger [Gutachter] Westermann. "Interactive Visualization of Large 3D Line Sets / Mathias Kanzler ; Gutachter: Kai Lawonn, Rüdiger Westermann ; Betreuer: Rüdiger Westermann." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1210163519/34.

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Books on the topic "3D Line sets"

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Dramiński, Stefan. Destroyer USS Kidd. Bloomsbury Publishing Plc, 2024. https://doi.org/10.5040/9781472827432.

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A brilliantly detailed visual representation of the only US World War II destroyer to have retained its original configuration. Superbly illustrated with artwork of the ship through its career, reconstructions of deck layouts, and 3D illustrations of every detail of the ship from its rigging to its boats to its anchors, this book reconstructs and dissects the Fletcher-class destroyer USSKidd, the most original survivor of the US Navy's most famous class of World War II destroyers.Kiddfought throughout the Pacific War, in the Marshall Islands, Marianas, and Philippines campaigns. In early 1945,
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Ślusarski, Marek. Metody i modele oceny jakości danych przestrzennych. Publishing House of the University of Agriculture in Krakow, 2017. http://dx.doi.org/10.15576/978-83-66602-30-4.

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The quality of data collected in official spatial databases is crucial in making strategic decisions as well as in the implementation of planning and design works. Awareness of the level of the quality of these data is also important for individual users of official spatial data. The author presents methods and models of description and evaluation of the quality of spatial data collected in public registers. Data describing the space in the highest degree of detail, which are collected in three databases: land and buildings registry (EGiB), geodetic registry of the land infrastructure network
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Read, John, and Peter Stacey. Guidelines for Open Pit Slope Design. CSIRO Publishing, 2009. http://dx.doi.org/10.1071/9780643101104.

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Guidelines for Open Pit Slope Design is a comprehensive account of the open pit slope design process. Created as an outcome of the Large Open Pit (LOP) project, an international research and technology transfer project on rock slope stability in open pit mines, this book provides an up-to-date compendium of knowledge of the slope design processes that should be followed and the tools that are available to aid slope design practitioners.
 This book links innovative mining geomechanics research into the strength of closely jointed rock masses with the most recent advances in numerical model
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van der Hoeven, Frank, and Alexander Wandl. Hotterdam: How space is making Rotterdam warmer, how this affects the health of its inhabitants, and what can be done about it. TU Delft Open, 2015. http://dx.doi.org/10.47982/bookrxiv.1.

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Heat waves will occur in Rotterdam with greater frequency in the future. Those affected most will be the elderly – a group that is growing in size. In the light of the Paris heat wave of August 2003 and the one in Rotterdam in July 2006, mortality rates among the elderly in particular are likely to rise in the summer. METHOD The aim of the Hotterdam research project was to gain a better understanding of urban heat. The heat was measured and the surface energy balance modelled from that perspective. Social and physical features of the city we identified in detail with the help of satellite imag
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Arera-Rütenik, Tobias, Stefan Breitling, Rainer Drewello, Mona Hess, and Gerhard Vinken, eds. The Centre for Heritage Conservation Studies and Technologies 2016-2018. University of Bamberg Press, 2021. http://dx.doi.org/10.20378/irb-49842.

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The Centre for Heritage Conservation Studies and Technologies (KDWT) was founded in spring 2016 as a central research institute of the Otto Friedrich University Bamberg. The core tasks of the KDWT are the expansion of knowledge and technology transfer to non-university research in-stitutions, business and crafts, the expansion of technical excellence, the supplementation of the range of courses, the support in research, teaching, transfer and service in terms of content and technical equipment as well in the internationalisation of research. The centre is divided into four departments: Monumen
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Book chapters on the topic "3D Line sets"

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Buchanan, Thomas. "Critical sets for 3D reconstruction using lines." In Computer Vision — ECCV'92. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/3-540-55426-2_82.

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Cipolla, Roberto, and Kwan-Yee K. Wong. "Shape from Profiles." In Images and Artefacts of the Ancient World. British Academy, 2005. http://dx.doi.org/10.5871/bacad/9780197262962.003.0014.

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This chapter discusses profiles or outlines which are dominant features of images. Profiles can be extracted easily and reliably from the images and can provide information on the shape and motion of an object. Classical techniques for motion estimation and model reconstruction are highly dependent on point and line correspondences, hence they cannot be applied directly to profiles which are viewpoint dependent. The limitations of classical techniques paved the way for the creation of different sets of algorithms specific to profiles. In this chapter, the focus is on state-of-the-art algorithm
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Murugan, Suriya, Sumithra M. G., and Logeswari Shanmugam. "Cognitive Mining for Exploratory Data Analytics Using Clustering Based on Particle Swarm Optimization." In Advances in Social Networking and Online Communities. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7522-1.ch007.

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This chapter examines the exploratory data analytics that require statistical techniques on data sets which are in the form of object-attribute-time format and referred to as three-dimensional data sets. It is very difficult to cluster and hence a subspace clustering method is used. Existing algorithms like CATSeeker are not actionable and its 3D structure complicates the clustering process, hence they are inadequate to solve this clustering problem. To cluster these three-dimensional data sets, a new centroid-based concept is introduced in the proposed system called clustering using particle
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Pizlo, Zygmunt, Yunfeng Li, Tadamasa Sawada, and Robert M. Steinman. "A Second View Makes 3D Shape Perception Perfect." In Making a Machine That Sees Like Us. Oxford University Press, 2014. http://dx.doi.org/10.1093/acprof:oso/9780199922543.003.0005.

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Slim, Ben Mimoun Mohamed, Garnier Marion, and Poncin Ingrid. "Improving Consumer Performance and Perceived Service Quality in a New Type of Commercial Environment in 3D, Thanks to Embodied Virtual Sales Agents." In E-Marketing in Developed and Developing Countries. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-3954-6.ch014.

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Considering the development of interactive and rich media technologies on the Internet, the present research sets up the link between a 3D commercial website and embodied virtual agents. Thanks to an experiment on a 3D commercial website, the impact of a virtual salesperson is observed on consumer performance (effectiveness in product retrieving), immersion, and satisfaction. Results highlight the immersive capacity of such a commercial environment, the positive contribution of a virtual salesperson on consumer performance and the interest in a virtual salesperson’s help with online purchases.
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Riva Giuseppe, Morganti Francesca, and Villamira Marco. "Immersive Virtual Telepresence: Virtual Reality meets eHealth." In Studies in Health Technology and Informatics. IOS Press, 2004. https://doi.org/10.3233/978-1-60750-943-1-255.

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Immersive Virtual Telepresence (IVT) tools are virtual reality environments combined with wireless multimedia facilities - real-time video and audio – and advanced input devices – tracking sensors, biosensors, brain-computer interfaces. For its features IVT can be considered an innovative communication interface based on interactive 3D visualization, able to collect and integrate different inputs and data sets in a single real-like experience.
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Ehrhardf J., Handels H., Wegner T., Strathmann B., Plötz W., and Pöppl S.J. "An Anatomical Atlas to Support the Virtual Planning of Hip Operations." In Studies in Health Technology and Informatics. IOS Press, 2000. https://doi.org/10.3233/978-1-60750-921-9-1226.

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Two three-dimensional digitized atlases of a female and a male pelvis were generated to support the virtual 3D-planning of hip operations. Beside the anatomical labeling of bone structures the determination of orthopedic measures, like angles, distances or sizes of contact areas, is important for the planning of hip operations. Thus, each atlas consists of labeled reference CT data sets, a set of landmarks as well as definitions of orthopedic measures and methods for their automatic computation. Furthermore, methods for the automatic transfer of anatomical labels from the atlas to an individua
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Pizlo, Zygmunt, Yunfeng Li, Tadamasa Sawada, and Robert M. Steinman. "Figure-ground Organization, Which Breaks Camouflage in Everyday Life, Permits the Veridical Recovery of a 3D Scene." In Making a Machine That Sees Like Us. Oxford University Press, 2014. http://dx.doi.org/10.1093/acprof:oso/9780199922543.003.0006.

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Fabbri, Franco L. "Popularization of Science in 3D Virtual Environments With “Scienza on the Road”." In Advances in Game-Based Learning. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2426-7.ch026.

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Online virtual words, i.e., digital territories where people can interact with each other and with elements of their environment via their avatars, offer a great potential for communication, training and teaching. In this chapter, the author focuses on the popularization of science. The virtual world considered here is Second Life. Besides the mentioned characteristics, the avatar users can digitize elements of their environment, creating grounds, seas, animals, plants and manu facts, school buildings museums and coliseums. Thus, it is possible to make instruments for communicating and teachin
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Morell-Gimenez, Vicente, Sergio Orts-Escolano, José García-Rodríguez, Miguel Cazorla, and Diego Viejo. "A Review of Registration Methods on Mobile Robots." In Robotic Vision. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2672-0.ch009.

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The task of registering three dimensional data sets with rigid motions is a fundamental problem in many areas as computer vision, medical images, mobile robotic, arising whenever two or more 3D data sets must be aligned in a common coordinate system. In this chapter, the authors review registration methods. Focusing on mobile robots area, this chapter reviews the main registration methods in the literature. A possible classification could be distance-based and feature-based methods. The distance based methods, from which the classical Iterative Closest Point (ICP) is the most representative, h
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Conference papers on the topic "3D Line sets"

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Hughes, Trevor L., Jennifer Duboue, Evgeny Barmatov, Jill Geddes, and Ling Li. "Contact & Optical Profilometry for Quantitative Characterization of Pitting Corrosion." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4249.

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Abstract This study compares methods based on contact profilometry and optical profilometry (3D microscopy) in terms of their ability to provide a quantitative characterization of pitting corrosion on a series of test coupons prepared from duplex steel (2205) oilfield casing. The test coupons were exposed to a series of oilfield acidizing formulations for 3 hours at 78°C. The formulations contained 4mol/L hydrochloric acid and increasing concentrations of the acid corrosion inhibitor naphthylmethylquinolinium chloride (4-30mmol/L). A sub-set of the fluids also contained potassium iodide. After
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Rahman, M. T., and M. S. Alam. "Model based recognition using 3D line sets and multidimensional Hausdorff distance." In Optics & Photonics 2005, edited by Andrew G. Tescher. SPIE, 2005. http://dx.doi.org/10.1117/12.618424.

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Chakrabarti, Partha, Subrata K. Chakrabarti, Adinarayana Mukkamala, Nagaraj Anavekar, Shen Qiang, and M. Sri Krishna. "Design, Analysis and Verification of Moored Floating Caisson System." In ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/omae2004-51234.

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Tacoma Narrows Constructors (TNC) is building a new suspension bridge in Tacoma, close to Seattle, Washington State, USA. The new bridge will be built just south of the existing bridge mounted on two caissons, referred to as East Caisson (Tacoma side) and West Caisson (Gig Harbor side). Each pier is about 80’ wide and 130’ long in plan. The mooring system for each caisson consists of two sets of mooring lines: lower and upper. Each set consists of 16 mooring lines. The lower 16 lines consist of anchors that form a radius of about 300 feet. The fairlead locations for these lower 16 lines are ke
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Peng, Xiang, Kevin Siggers, Mark Wright, and Johannes Palmer. "Data Fusion of Complementary Axial and Circumferential Magnetic Flux Leakage Inline Inspections and Effects on Safe Remaining Life." In 2024 15th International Pipeline Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/ipc2024-133959.

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Abstract Measurements from magnetic flux leakage (MFL) in-line inspection tools include two types of uncertainty: random uncertainty arising from essential variables such as velocity and magnetization level; and systemic uncertainty from the measurement principle. The accuracy of the measurement principle is subject to the angle between its magnetic field and the metal loss anomaly. To gain a comprehensive assessment of anomalies, pipelines can be inspected with two MFL techniques with perpendicular magnetic fields, i.e., axial MFL (MFL-A) and circumferential MFL (MFL-C). Currently, the inspec
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Bol, Eric, Curtis Doyle, and M. Ramulu. "Process Parameter Effects on Melt Topology and Dimensional Deviation in Electron Beam Melted Ti-6Al-4V." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70698.

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Abstract Industry is actively evaluating additive manufacturing (AM) for parts and assemblies, but many applications have strict requirements that manufacturing processes be stable and repeatable. This is currently a challenge for many operators of powder bed fusion (PBF) technologies where limited understanding of how the AM process parameters impact the dimensional deviation from the design and material quality. The experiment described in this paper employed an electron beam melting (EBM) Arcam A2X and Ti-6Al-4V powder to manufacture single lines of melted powder within the bed. This fundam
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Kamgar-Parsi, B. "An open problem in matching sets of 3D lines." In Proceedings of the 2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. CVPR 2001. IEEE, 2001. http://dx.doi.org/10.1109/cvpr.2001.990536.

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Kuhn, Michael, Kazuko Fuchi, Giorgio Bazzan, et al. "Coupling of Geometric and Material Stiffening Mechanisms in Origami Design." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-60132.

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Origami, the ancient art of paper folding, has recently garnered attention from the scientific community for its capacity for unique 2D – 3D shape change and programmable mechanical properties. Application areas of such properties include packaging, self-assembly, shock absorption and deployable structures. Recent studies have highlighted the role of the folded geometry to regulate the mechanical response of the origami structures, such as the increased compression stiffness of origami tubes or the tunable in-plane stiffness through select inversion of bi-stable fold vertices. In addition to g
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Dong, Qingbing, Jing Wei, Yan Li, and Lixin Xu. "A Numerical Model to Predict Dynamic Performance of Layered Gears at Starved Lubrication." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97276.

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Abstract Gears of modern industry are required to have a good fatigue performance to transmit power and motion through the contact interfaces. Composite layered surfaces can effectively improve the damage resistance of gears and decrease the friction coefficients. However, improper surface modification may induce intensive stress concentrations at the joint interfaces of the strengthening layers and cause unexpected damages to the flanks. Furthermore, the amount of lubricant at the inlet may probably be insufficient to establish fully flooded condition, which may result in starvation and accel
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Manuel Figueiredo, Carlos, and Sofia Machado Santos. "Virtual models of architectural spaces: methods for exploration, representation and interaction through narratives and visual grammars." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001935.

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In this paper we aim to present a conceptual framework for virtual creation, exploration, and representation of architectural space. This framework will allow us to establish a method that will drive the viewer along a path, intended by the researcher, to experience, interact and get feedback of spaces in study, through linear or interactive narratives.Space virtual computational representation tools have evolved over the last decades and are now providing advanced new tools from gaming, AI and VR real-time complex fictional environments creation, depiction and interaction. From interior space
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Xuewu, Z. "Test Analysis of a 2D Seismic Survey With Finer CMP Interval." In Indonesian Petroleum Association - 46th Annual Convention & Exhibition 2022. Indonesian Petroleum Association, 2022. http://dx.doi.org/10.29118/ipa22-g-119.

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Finer bin size or CMP interval normally means higher cost for a seismic survey, which makes sense for 3D projects because of very large equipment investment and difficulties of recording crew organization. However, the increase of active channels seems not to increase much cost for a conventional 2D seismic project in Indonesian jungle where the large portion of the cost is from line clearance, bridging, drilling and damage compensation. A test 2D line with 10 m receiver interval (RI), 60 m source interval (SI), 720 active channels and bunched geophone was acquired versus the production parame
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