Results 121 to 130 of about 14,662 (256)

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

Advanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee, Rafael R. Del Grande, Yeonjoo Lee, Jinkyoung Yoo, Azza Ben‐Akacha, Biwu Ma, Michael T. Pettes, David A. Strubbe   +7 more
wiley   +1 more source

Advanced security in fog environments using encryption and adaptive user activity tracking. [PDF]

Sci Rep
Rai HM, Razaque A, Agarwal N, Agarwal S, Abdallah HA, Kant S.   +5 more
europepmc   +1 more source

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

Advanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik, Fedor Kovalev, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Ilya Shadrivov, Mariusz Martyniuk   +6 more
wiley   +1 more source

An adaptive cryptographic fusion framework for secure and efficient medical image encryption. [PDF]

Sci Rep
Jeno Jasmine J, Dhinakaran D, Gopalakrishnan S, Ramathilagam A.   +3 more
europepmc   +1 more source

Portable TPM based user Attestation Architecture for Cloud Environments

, 2015
Cloud computing is causing a major shift in the IT industry. Research indicates that the cloud computing industry segment is substantial and growing enormously. New technologies have been developed, and now there are various ways to virtualize IT systems
Dr. B R Prasad Babu, Mr. Pramod
core  

Shaping Carbon Nitrides for Advanced Macrostructures

Advanced Materials Technologies, EarlyView.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

Threshold-adaptive pruning with multi-key homomorphic encryption for communication-efficient secure federated learning. [PDF]

PLoS One
Guo J, Liu R, Xing J.
europepmc   +1 more source

Data‐Efficient Electromagnetic Surrogate Solver Through Dissipative Relaxation Transfer Learning

Advanced Optical Materials, EarlyView.
Dissipative relaxation transfer learning (DIRTL) enables data‐efficient training of electromagnetic surrogate solvers by pretraining data generated with artificial material loss before fine‐tuning on target lossless data. The framework suppresses resonant outlier effects during early training, allowing effective adaptation to high‐amplitude resonances ...
Sunghyun Nam, Chan Y. Park, Min Seok Jang   +2 more
wiley   +1 more source

Enhancing Cloud-Based Healthcare Security With Quantum-Secure HealthChain: A Quantum Computing and Blockchain Integrated Framework. [PDF]

Health Sci Rep
Bose R, Mondal S, Sutradhar S, Das S, Faheem M, Roy S, Ahmad Khan A.   +6 more
europepmc   +1 more source

Privacy Infrastructure for Content and Communications

, 2018
Citizens' privacy is coming under greater threat as an increasing number of entities can access user data. A powerful adversary, such as a nation-state, can gain access to user data using a broad range of techniques, from privately tapping wires and ...
Edmundson, Anne
core