Results 271 to 280 of about 807,165 (362)

A HYBRID ENCRYPTION SOLUTION TO IMPROVE CLOUD COMPUTING SECURITY USING MODIFIED SYMMETRIC AND ASYMMETRIC CRYPTOGRAPHY ALGORITHMS

Nadiah Jaffreen Shaik
openalex   +2 more sources

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

An efficient image encryption algorithm using 3D-cyclic chebyshev map and elliptic curve. [PDF]

Sci Rep
Kanwal S, Inam S, Al-Otaibi S, Akbar J, Siddiqui N, Ashiq M.   +5 more
europepmc   +1 more source

Soft Robotic Engines with Non‐Reciprocal Motion by Physical Intelligence

Advanced Materials, EarlyView.
Movement is vital, and it requires breaking symmetry. This study introduces a hydrogel engine that achieves non‐reciprocal motion through kinetic asymmetry in repeated actuation cycles. This approach for breaststroke‐swimming‐like motion is embedded inside the material and establishes a new paradigm of physical intelligence for soft robotics.
Oliver Skarsetz, Piet J.M. Swinkels, Jacqueline Figueiredo da Silva, Giulia Vozzolo, Marcos Masukawa, Giorgio Fusi, Brigitta Dúzs, Yanis Lassiat, Christoph Drees, Viacheslav Slesarenko, Andreas Walther   +10 more
wiley   +1 more source

An efficient ECC and fuzzy verifier based user authentication protocol for IoT enabled WSNs. [PDF]

Sci Rep
Sudhakar T, Praveen R, Natarajan V.
europepmc   +1 more source

Interface‐Induced Stability of Nontrivial Topological Spin Textures: Unveiling Room‐Temperature Hopfions and Skyrmions

Advanced Materials, EarlyView.
The first room‐temperature, zero‐field observation of stable skyrmion–hopfion spin textures in EuS─Bi2Se3─EuS trilayers is reported. Combining Lorentz TEM imaging and micromagnetic modeling, the authors unveil how interfacial Dzyaloshinskii–Moriya interaction and geometric confinement stabilize these multidimensional topological states.
Ferhat Katmis, Valeria Lauter, Rawana Yagan, Iuri S. Brandt, Arash M. Cheghabouri, Hua Zhou, John W. Freeland, Clodoaldo I. L. de Araujo, Michelle E. Jamer, Don Heiman, Mehmet C. Onbasli, Jagadeesh S. Moodera   +11 more
wiley   +1 more source

Securing face images in UAV networks using chaos and DNA cryptography approach. [PDF]

Sci Rep
Inam S, Kanwal S, Amin E, Cheikhrouhou O, Hamdi M.   +4 more
europepmc   +1 more source

Improvement of the Secret key Exchange in Symmetric Cryptography

openalex   +1 more source

Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation

Advanced Materials, EarlyView.
In this work, a universal metasurface multiplexing strategy is presented based on non‐injective transformation. By jointly optimizing two metasurfaces, multiplexed channels achieve independent wavefront control, overcoming crosstalk limits of single‐layer designs.
Xiao Jin, Thomas Zentgraf
wiley   +1 more source

Block cipher construction using minimum spanning tree from graph theory and its application with image encryption. [PDF]

Sci Prog
Rasheed MW, Mahboob A, Bilal M, Shahzadi K.   +3 more
europepmc   +1 more source