Results 41 to 50 of about 8,161,749 (297)

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Constant-Current Gate Driver for GaN HEMTs Applied to Resonant Power Conversion

open access: yesEnergies, 2021
New semiconductor technology is enabling the design of more reliable and high-performance power converters. In particular, wide bandgap (WBG) silicon carbide (SiC) and gallium nitride (GaN) technologies provide faster switching times, higher operating ...
Héctor Sarnago   +3 more
doaj   +1 more source

Orthogonal Passivation of Polar Facets for Efficient InSb Quantum Dot SWIR Photodetectors

open access: yesAdvanced Materials, EarlyView.
An orthogonal passivation strategy is developed for indium antimonide (InSb) colloidal quantum dots (CQDs): a metal halide passivates Sb‐terminated surface sites, while thiol ligands passivate In‐terminated sites. This site‐specific passivation reduces trap density, prolonging carrier lifetime and increasing carrier mobility, and enables InSb CQD ...
Sile Hu   +7 more
wiley   +1 more source

Discriminative Angle Feature Learning for Open-Set Deep Fault Classification

open access: yesIEEE Access, 2023
Unknown faults may occur in practical applications, necessitating an open-set classifier that can classify known classes as well as recognize unknown faults.
Jie Mei   +6 more
doaj   +1 more source

Binder‐Free Direct Ink Writing of Li6.4La3Zr1.4Ta0.6O12 Garnet Electrolytes for All‐Solid‐State Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
Polymer binders and thick pressed LLZTO pellets limit all‐solid‐state battery integration through grain‐boundary carbon and high ohmic losses. A binder‐free capillary suspension ink is direct‐ink‐written and sintered into 254 μm$\mu{\rm m}$, 95.8%‐dense Ta‐stabilized LLZTO with 17.3 mS cm−1$\text{cm}^{-1}$ bulk conductivity, enabling thinner ...
Sri Vaishnavi Thummalapalli   +7 more
wiley   +1 more source

DiffNet: A Learning to Compare Deep Network for Product Recognition

open access: yesIEEE Access, 2020
The paper focuses on the identification of different objects in a pair of images taken from the same environment, which is challenging and has wide application. We propose a single deep convolutional neural network termed as DiffNet to solve this problem.
Bin Hu   +4 more
doaj   +1 more source

HARMONIZING ALBANIAN ELECTRONIC COMMUNICATIONS LAW: A COMPREHENSIVE ANALYSIS OF EUROPEAN ELECTRONIC COMMUNICATIONS CODE IMPACT

open access: yes, 2023
The Albanian legislation on electronic communications has undergone a series of changes and adaptations over the years, primarily driven by the evolution of platforms and technologies through which these services are provided.
GJIKA, Jonida
core   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja   +9 more
wiley   +1 more source

Telecentre Approaches in Cameroon and Kenya Illuminated Using Behavioural Archaeology

open access: yesThe African Journal of Information and Communication, 2012
Throughout the last decade, telecentres have provided access to electronic communications as a supporting ICT infrastructure for community, economic, educational and social development.
David Hallberg   +2 more
doaj   +1 more source

Towards QoS-Aware Load Balancing for High Density Software Defined Wi-Fi Networks

open access: yesIEEE Access, 2020
High density Wi-Fi networks require load balancing in order to ensure quality of service (QoS). In the traditional Wi-Fi networks, the wireless stations learn the access points (APs) load and make the association decisions themselves leading to uneven ...
Sohaib Manzoor   +4 more
doaj   +1 more source

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