Results 181 to 190 of about 166,015,977 (264)

A 4D hyperchaotic image encryption scheme using Circular Radius-Angle Transformation and bit-level permutation. [PDF]

PLoS One
Khalaf MA, Sheikh UU, Manan SSBA, Hamood SF, Najamuddin.   +4 more
europepmc   +1 more source

An Examination of the Cs2NaInCl6 Luminescence: Interplay of Self‐Generated In+ and Doped Sb3+, Er3+/Yb3+ Ions

Advanced Optical Materials, EarlyView.
A new luminescence mechanism in Cs2NaInCl₆ is revealed through spontaneously formed In3+→In+ centers and Er3+/Yb3+/Sb3+ doping. Tunable visible, near‐infrared, downconversion, and upconversion emissions are demonstrated, while DFT calculations explain the electronic structure.
Inna A. Ivashchenko, Alicja Szymska‐Szymanik, Lubomir D. Gulay, Alexander Eich, Galina Gurieva, Susan Schorr, Karina V. Lamonova, Marcin Nyk, Malgorzata Makowska‐Janusik, Benjamin González‐Diaze, Katarzyna Matras‐Postołek   +10 more
wiley   +1 more source

Investigation of wind load behavior on hip roof structures subjected to Tornado-induced flow. [PDF]

PLoS One
Hao X, Jia Y, Wang X, Cao W, Zhang Z.
europepmc   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

A refined Newton’s mesh independence principle for a class of optimal shape design problems

Open Mathematics, 2006
Argyros Ioannis
doaj   +1 more source

The Limitations on Vergence Responses to Naturalistic Images Resulting From Simulated Central Scotomas and Defocused Peripheral Retina. [PDF]

Ophthalmic Physiol Opt
Marella BL, Neupane S, Mestre C, Candy TR.   +3 more
europepmc   +1 more source

On the radius of convergence of random gap power series

International Journal of Mathematical Analysis, 2015
L. O. Shapovalovska, O. B. Skaskiv
openaire   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

Theoretical Modeling and Experimental Validation of Contact Pressure in the Solid Rocket Motor Thermal Insulation Winding Process. [PDF]

Materials (Basel)
Zhang W, Hou Z.
europepmc   +1 more source

Multimodal Engagement Assessment in Children During Invented Story Paradigm With a Social Robot

Advanced Robotics Research, EarlyView.
A multimodal framework is proposed to assess children's engagement during storytelling interactions with a social robot. Gaze, physiological, and behavioral data are combined and validated against observer ratings. An automated gaze‐labeling strategy is introduced, and supervised classifiers achieve high accuracy. The study supports scalable engagement
Laura Fiorini, Elena Adelucci, Stefano Scatigna, Lorenzo Pugi, Alice Bruni, Benedetta Carotenuto, Chiara Pecini, Filippo Cavallo   +7 more
wiley   +1 more source