Results 81 to 90 of about 531,997 (283)
HERO: Human Emotions Recognition for Realizing Intelligent Internet of Things
IEEE Access, 2019 Human emotions recognition (HERO) is considered as one of the important techniques for realizing the intelligent Internet of Things. The demand for a robust and precise facial expression recognition algorithm is urgent for the HERO.
Wentao Hua +4 more
doaj +1 more source
Broadband in rural and remote areas: the impact of Scottish policy initiatives [PDF]
, 2008 The ability to participate in the Internet-based economy that is emerging requires access to broadband. However, in many countries, 'digital divides' occur, with those in geographically remote and rural areas being particularly disadvantaged.
Howick, Susan, Whalley, Jason
core
Advanced Functional Materials, EarlyView.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park +3 more
wiley +1 more source
SensorsMultiband (MB) optical transmission targets increasing the capacity of operators’ optical transport networks. However, nonlinear impairments (NLI) affect each optical channel in the C+L+S bands differently, and, therefore, the routing and spectrum ...
Sadegh Ghasrizadeh +6 more
doaj +1 more source
, 2008 Japan's high-speed Internet access services such as ADSL, CATV Internet and FTTH are considered the cheapest and fastest state-of-the-art services drawing international attention. In this book the author introduces the current status of broadband services in Japan and their recent development in competition policy.
openaire +3 more sources
Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications
Advanced Functional Materials, EarlyView.Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief +20 more
wiley +1 more source
Power Allocation Optimization for Secure OFDM-NOMA Downlink Systems
IEEE Open Journal of the Communications SocietyNon-orthogonal multiple access (NOMA) is considered as an important enabling technique for the sixth generation wireless network. In this paper, we study a secure orthogonal frequency division multiplexing (OFDM)-NOMA downlink system, which combines OFDM
Hanxue Yue +4 more
doaj +1 more source
Online Spectrum Prediction With Adaptive Threshold Quantization
IEEE Access, 2019 In this paper, we explore the spectrum inference to achieve the spectrum occupancy in advance through analyzing the historical spectrum. We have conceived an offline-online cooperative framework.
Haoyu Li +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Modular diffractive deep neural network metasurfaces encode and reconstruct holograms across layer combinations and wavelengths, enabling secure, multifunctional operation. Each layer acts independently yet composes jointly, yielding up to m(2N −1) channels for m wavelengths and N layers.
Cherry Park +4 more
wiley +1 more source