Results 61 to 70 of about 4,177,235 (310)

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos   +8 more
wiley   +1 more source

DSS-13 26-meter antenna upgraded radiometer system [PDF]

open access: yes, 1992
The Deep Space Station (DSS)-13 26-m antenna radiometer system was upgraded with an IBM-compatible computer-controlled configuration with improved supporting hardware and software.
Bury, G., Skjerve, L., Stelzried, C. T.
core   +1 more source

Large Area, Cost‐Effective, and Ultra‐Fast Fabrication of Mini‐Coils Toward Noninvasive Magnetic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A simple, cleanroom‐free method produces flexible mini‐coils using automated blade cutting. The process is fast, low‐cost, and supports diverse materials. The coils show strong durability and performance under repeated bending. Demonstrated use in resistor‐inductor filters and magnetic nanoparticle control proves their adaptability.
Changhao Ge   +5 more
wiley   +1 more source

Automatic Salient Object Extraction Based on Locally Adaptive Thresholding to Generate Tactile Graphics

open access: yesApplied Sciences, 2020
Automatic extraction of salient regions is beneficial for various computer vision applications, such as image segmentation and object recognition. The salient visual information across images is very useful and plays a significant role for the visually ...
Akmalbek Abdusalomov   +4 more
doaj   +1 more source

Ten years of hardware Trojans: a survey from the attacker's perspective

open access: yesIET Computers & Digital Techniques, 2020
Hardware Trojan detection techniques have been studied extensively. However, to develop reliable and effective defenses, it is important to figure out how hardware Trojans are implemented in practical scenarios.
Mingfu Xue   +4 more
semanticscholar   +1 more source

Requirements and Evaluation of Commercial Digital Light Processing 3D Printers for Upscaled Production of Microstructured Tissue Culture Devices

open access: yesAdvanced Engineering Materials, EarlyView.
Commercial light‐based 3D printers increasingly find use for industry‐scale production of microstructured tissue culture devices. How can commercial printer performance be assessed for a given application? This work introduces simplified quantitative metrics based on microstructural fidelity analysis, addressing key manufacturing challenges in scaling ...
Zoltán András Guller   +4 more
wiley   +1 more source

Dynamic testing of docking system hardware [PDF]

open access: yes, 1972
Extensive dynamic testing was conducted to verify the flight readiness of the Apollo docking hardware. Testing was performed on a unique six degree-of-freedom motion simulator controlled by a computer that calculated the associated spacecraft motions ...
Dorland, W. D.
core   +1 more source

A new golden age for computer architecture

open access: yesCommunications of the ACM, 2019
Innovations like domain-specific hardware, enhanced security, open instruction sets, and agile chip development will lead the way.
J. Hennessy, D. Patterson
semanticscholar   +1 more source

Bioinspired Materials, Designs, and Manufacturing Strategies for Advanced Impact‐Resistant Helmets

open access: yesAdvanced Engineering Materials, EarlyView.
This review explores how bioinspired materials, structures, and manufacturing strategies transform helmet design to achieve enhanced impact resistance. Drawing inspiration from nacre, porcupine quills, beetle exoskeletons, and skull architectures, it highlights advances in auxetic lattices, nanocomposites, and functionally graded foams.
Joseph Schlager   +4 more
wiley   +1 more source

Detection of Twitter Users\' Attitudes about Flu Vaccine based on the Content and Sentiment Analysis of the Sent Tweets

open access: yesمجله انفورماتیک سلامت و زیست پزشکی, 2019
Introduction: The influenza vaccine is one of the controversial challenges in today's societies. Considering the importance of using the flu vaccine in preventing the spread of influenza virus, the Twitter network, as a rich source of data, provides ...
Zahra Ghanbari   +3 more
doaj  

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