Results 151 to 160 of about 2,028,269 (419)

3D printed mask extenders as a supplement to isolation masks to relieve posterior auricular discomfort: an innovative 3D printing response to the COVID-19 pandemic

open access: yes3D Printing in Medicine, 2020
Purpose Many commonly used mask designs are secured by elastic straps looping around the posterior auricular region. This constant pressure and friction against the skin may contribute to increased wearer pain, irritation, and discomfort.
Zachary O’Connor   +5 more
doaj   +1 more source

Computed Axial Lithography (CAL): Toward Single Step 3D Printing of Arbitrary Geometries [PDF]

open access: yesarXiv, 2017
Most additive manufacturing processes today operate by printing voxels (3D pixels) serially point-by-point to build up a 3D part. In some more recently-developed techniques, for example optical printing methods such as projection stereolithography [Zheng et al. 2012], [Tumbleston et al.
arxiv  

Static and Dynamic Behavior of Novel Y‐Shaped Sandwich Beams Subjected to Compressive Loadings: Integration of Supervised Learning and Experimentation

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the mechanical response of Y‐shaped core sandwich beams under compressive loading is investigated, using deep feed‐forward neural networks (DFNNs) for predictive modeling. The DFNN model accurately captures stress–strain behavior, influenced by design parameters and loading rates.
Ali Khalvandi   +4 more
wiley   +1 more source

Direct-ink-writing of highly deformable, multi-layered electrical devices using elastomer-based dual inks

open access: yesVirtual and Physical Prototyping
The advancement of soft electronics has enabled the creation of highly deformable, multi-functional devices capable of conforming to various surfaces. However, achieving both high deformability and electrical stability suitable for target applications ...
Jung Hyun Kim   +6 more
doaj   +1 more source

3D Printing of Scintillating Materials [PDF]

open access: yesarXiv, 2014
We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\% of that of commercial polystyrene based scintillators.
arxiv  

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör   +9 more
wiley   +1 more source

Correction to Acknowledgement

open access: yes3D Printing in Medicine, 2021
3D Printing in Medicine
doaj   +1 more source

The Effect of Print Angulation on the Accuracy and Precision of 3D-Printed Orthodontic Retainers [PDF]

open access: yes, 2020
Purpose: The aims of this study were: 1) to compare the accuracy and precision of 3- dimensional (3D) printed retainers at various angulations, 2) to evaluate the effect of angulation on printing time and the amount of resin consumed.
Williams, Allison
core   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

Surgical planning aided with 3D technologies for management of complex paracardiac tumors

open access: yesJournal of Cardiothoracic Surgery
Background Accurate diagnosis and treatment of complex cardiac tumors poses challenges, particularly when surgical resection is considered. 3D reconstruction and printing appear as a novel approach to allow heart teams for optimal surgical and post ...
Camilo E. Pérez-Cualtán   +11 more
doaj   +1 more source

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