Relevant bibliographies by topics / 3D structuring

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  1. Journal articles

Academic literature on the topic '3D structuring'

Author: Grafiati
Published: 21 October 2023

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Journal articles on the topic "3D structuring"

1

Senn, T., Ch Waberski, J. Wolf, J. P. Esquivel, N. Sabaté, and B. Löchel. "3D structuring of polymer parts using thermoforming processes." Microelectronic Engineering 88, no. 1 (2011): 11–16. http://dx.doi.org/10.1016/j.mee.2010.08.003.

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Purwidyantri, Agnes, Chih-Hsien Hsu, Chia-Ming Yang, Briliant Adhi Prabowo, Ya-Chung Tian, and Chao-Sung Lai. "Plasmonic nanomaterial structuring for SERS enhancement." RSC Advances 9, no. 9 (2019): 4982–92. http://dx.doi.org/10.1039/c8ra10656h.

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Au island over nanospheres (AuIoN) structures featuring a three-dimensional (3D) nanostructure on a two-dimensional (2D) array of nanospheres with different adhesion layers were fabricated as surface-enhanced Raman scattering (SERS) substrates.
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3

Aleksandrov, M., A. Diakité, J. Yan, W. Li, and S. Zlatanova. "SYSTEMS ARCHITECTURE FOR MANAGEMENT OF BIM, 3D GIS AND SENSORS DATA." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-4/W9 (September 30, 2019): 3–10. http://dx.doi.org/10.5194/isprs-annals-iv-4-w9-3-2019.

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Abstract. This paper presents a system architecture for structuring and manipulation of Building Information Models (BIM), three-dimensional (3D) geospatial information, point clouds and time series data obtained from sensors. The system consists of four layers including data pre-processing, data structuring and storage, system interface and front-end data manipulation. To enable the integration of different data, a unified UML model is developed. The paper explains all steps of 3D reconstruction, BIM geo-referencing, storage of spatial data and visualisation. Special attention is given to the integration of sensors data. The data model and the system architecture are tested for a university campus. The results demonstrate an approach for BIM-GIS-Sensor integration as part of Precinct Information Modelling (PIM). The system architecture allows for a flexible structuring and manipulation of different spatial data towards managing various 3D spatial and non-spatial data.
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Qi, Jianbo, Tiangang Yin, Donghui Xie, and Jean-Philippe Gastellu-Etchegorry. "Hybrid Scene Structuring for Accelerating 3D Radiative Transfer Simulations." Remote Sensing 11, no. 22 (2019): 2637. http://dx.doi.org/10.3390/rs11222637.

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Three-dimensional (3D) radiative transfer models are the most accurate remote sensing models. However, presently the application of 3D models to heterogeneous Earth scenes is a computationally intensive task. A common approach to reduce computation time is abstracting the landscape elements into simpler geometries (e.g., ellipsoid), which, however, may introduce biases. Here, a hybrid scene structuring approach is proposed to accelerate the radiative transfer simulations while keeping the scene as realistic as possible. In a first step, a 3D description of the Earth landscape with equal-sized voxels is optimized to keep only non-empty voxels (i.e., voxels that contain triangles) and managed using a bounding volume hierarchy (BVH). For any voxel that contains triangles, within-voxel BVHs are created to accelerate the ray–triangle intersection tests. The hybrid scheme is implemented in the Discrete Anisotropic Radiative Transfer (DART) model by integrating the Embree ray-tracing kernels developed at Intel. In this paper, the performance of the hybrid algorithm is compared with the original uniform grid approach implemented in DART for a 3D city scene and a forest scene. Results show that the removal of empty voxels can accelerate urban simulation by 1.4×~3.7×, and that the within-voxel BVH can accelerate forest simulations by up to 258.5×.
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Kim, Do-Yeon. "Liver vasculature refinement with multiple 3D structuring element shapes." Pattern Analysis and Applications 17, no. 3 (2013): 667–78. http://dx.doi.org/10.1007/s10044-013-0338-6.

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6

Yan, Hengfeng, Jimin Chen, and Jinyan Zhao. "3D-MID manufacturing via laser direct structuring with nanosecond laser pulses." Journal of Polymer Engineering 36, no. 9 (2016): 957–62. http://dx.doi.org/10.1515/polyeng-2015-0367.

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Abstract 3D molded interconnect device (3D-MID) is a kind of injection-molded thermoplastic part with integrated electronic circuit traces. Currently, it is a hotspot of the electronic and telecommunication equipment industry. Laser direct structuring (LDS) is the main approach to fabricate 3D-MID. Laser scans and activates the surface of thermoplastic parts. After plating, the activated area is coated with copper. In this study, a model was built to describe the mechanisms of interaction between a substrate and laser. The nanosecond laser was applied in the LDS process to manufacture 3D circuit on 3D-MID. With the aid of variable laser pulse width, the model was confirmed by a series of experiments including investigations of roughness, surface structure and energy spectrum. Finally, critical factors affecting the LDS process were found out. They are effective guides for many LDS applications.
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7

Jabłoński, Mirosław. "Silhouette Processing Via Mathematical Morphology with Pose-Aware Structuring Elements Based on 3D Model." Image Processing & Communications 17, no. 4 (2012): 71–78. http://dx.doi.org/10.2478/v10248-012-0031-1.

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Abstract In the paper, the method of poseaware silhouette processing is presented. Morphological closing is proposed to enhance segmented silhouette object. The contribution of the work is adaptation of structuring element used for mathematical morphology erosions and dilations. It is proposed to use camera parameters, 3D model of the scene, model of the silhouette and its position to compute structuring element adequate to the individual projected to the camera image. Structuring element computation and basic morphology operators were implemented in OpenCL environment and tested on parallel GPU platform. Comparison with utility software packages is provided and results are briefly discussed.
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8

Jaksa, Laszlo, Dieter Pahr, Gernot Kronreif, and Andrea Lorenz. "Development of a Multi-Material 3D Printer for Functional Anatomic Models." International Journal of Bioprinting 7, no. 4 (2021): 420. http://dx.doi.org/10.18063/ijb.v7i4.420.

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Anatomic models are important in medical education and pre-operative planning as they help students or doctors prepare for real scenarios in a risk-free way. Several experimental anatomic models were made with additive manufacturing techniques to improve geometric, radiological, or mechanical realism. However, reproducing the mechanical behavior of soft tissues remains a challenge. To solve this problem, multi-material structuring of soft and hard materials was proposed in this study, and a three-dimensional (3D) printer was built to make such structuring possible. The printer relies on extrusion to deposit certain thermoplastic and silicone rubber materials. Various objects were successfully printed for testing the feasibility of geometric features such as thin walls, infill structuring, overhangs, and multi-material interfaces. Finally, a small medical image-based ribcage model was printed as a proof of concept for anatomic model printing. The features enabled by this printer offer a promising outlook on mimicking the mechanical properties of various soft tissues.
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Ivanov, Alexey, and Ulrich Mescheder. "Silicon Electrochemical Etching for 3D Microforms with High Quality Surfaces." Advanced Materials Research 325 (August 2011): 666–71. http://dx.doi.org/10.4028/www.scientific.net/amr.325.666.

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In this paper the process of silicon anodization as a structuring technique is discussed. 3D-structuring is achieved by 3D control of current density in an anodization process. In contrast to conventional ECM techniques electrodes as structured thin layers on the work piece are used. For the shape controlling of etch form frontside masking design and local backside doping are presented. Influences of the opening size and etch depth on the shape of the etch form is shown. The surface quality of the resulting 3D structures is investigated, with best surface quality (about 1 nm rms) being obtained for electropolishing in 7 wt.% HF at applied current densities of 100 ‑ 300 mA/cm². Application of 3D silicon forms for injection moulding is demonstrated and further implementations of the process for optical and fluidic devices are discussed.
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10

Béjot, Pierre, and Bertrand Kibler. "Quadrics for Structuring Invariant Space-Time Wave Packets." EPJ Web of Conferences 266 (2022): 13018. http://dx.doi.org/10.1051/epjconf/202226613018.

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We provide a general approach for structuring invariant 3D+1 optical wave packets in both bulk and structured dispersive media, through a simple engineering of phase-matched space-time frequencies on quadric surfaces.
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