Results 91 to 100 of about 550,568 (326)

Exploring Topsnut-Graphical Passwords by Twin Odd-elegant Trees

open access: yesMATEC Web of Conferences, 2017
Graphical passwords are facing a good opportunity as 2-dimension codes are accepted by many people, since it has been applied in mobile devices, electronic equipments with touch screen, and so on.
Wang Hong-yu, Xu Jin, Yao Bing
doaj   +1 more source

Numerical Studies of Influencing Factors on the Homogeneity of the Powder Mixture during the Powder Spreading Process of Powder Bed Fusion–Laser Beam/Metal

open access: yesAdvanced Engineering Materials, EarlyView.
AISI 304L stainless steel powder is mixed with silicon nitride (Si3N4) powder and processed by PBF‐LB/M, allowing partial retention of Si3N4. The numerical approach effectively predicts the Si3N4 powder homogeneity and N content distribution on the powder bed. Recent studies have focused on the alloying of nitrogen (N) in high‐alloy stainless steels by
Yuanbin Deng   +7 more
wiley   +1 more source

Design of intelligent locks based on the triple KeeLoq algorithm

open access: yesAdvances in Mechanical Engineering, 2016
KeeLoq algorithm with high security was usually used in wireless codec. Its security lack is indicated in this article according to the detailed rationale and the introduction of previous attack researches.
Huibin Chen, Jing Liu, Cheng-Fu Yang
doaj   +1 more source

Design of an Open-Source Decoder for Educational Escape Rooms

open access: yesIEEE Access, 2019
Escape rooms are a popular recreational activity which involves solving a series of puzzles within a time limit to `escape' the fictional setting they are in. As a fun, collaborative learning activity, escape rooms are increasingly finding their way into
Robert Ross
doaj   +1 more source

Estimating the herd immunity threshold by accounting for the hidden asymptomatics using a COVID-19 specific model.

open access: yesPLoS ONE, 2020
A quantitative COVID-19 model that incorporates hidden asymptomatic patients is developed, and an analytic solution in parametric form is given.
Shaurya Kaushal   +6 more
doaj   +1 more source

Safe and smooth through a shallow fairway [PDF]

open access: yes, 2010
Since the ever growing dimensions of all vessel types coming to the Flemish harbours which started in the mid 80’s of last century, the research at Flanders Hydraulics Research, a laboratory belonging to the Flemish Government, concerning harbour ...
Eloot, Katrien, Lataire, Evert
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Effect of spin-lock frequency on quantitative myocardial T1ρ mapping

open access: yesInsights into Imaging
Objectives To use T1ρ mapping to assess myocardial fibrosis and to provide a reference for future clinical application, it is necessary to understand the factors influencing T1ρ values.
Caiyun Han   +13 more
doaj   +1 more source

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