Results 131 to 140 of about 59,410 (311)

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf   +4 more
wiley   +1 more source

Miniaturized dual-band Wi-Fi antenna for mobile application [PDF]

open access: yes
This thesis addresses the growing demand for compact and efficient dual-band Wi-Fi antennas operating at both 2.4 GHz and 5 GHz frequencies. Miniaturized dual-band Wi-Fi antenna for mobile application is a collaboration project between UTeM and Intel to ...
Meor Said, Maizatul Alice   +8 more
core   +1 more source

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera   +6 more
wiley   +1 more source

Antenna Study and Design for Ultra Wideband Communication Applications

open access: yes, 2006
PhDSince the release by the Federal Communications Commission (FCC) of a bandwidth of 7.5GHz (from 3.1GHz to 10.6GHz) for ultra wideband (UWB) wireless communications, UWB is rapidly advancing as a high data rate wireless communication technology.
Liang, Jianxin
core  

A Holistic Stabilization of the Anode in Lithium‐Sulfur Batteries Through a Ternary Alloy Fusion

open access: yesAdvanced Functional Materials, EarlyView.
LiTeAl anodes fabricated through a scalable thermal fusion technique holistically addresses the stability issues faced by lithium‐metal anodes in lithium–sulfur batteries. Aluminum forming a skeletal network with lithium suppresses dendrite growth and enhances energy density, while tellurium forming a robust SEI facilitates Li+‐ion flow.
Akhil Shenoy, Arumugam Manthiram
wiley   +1 more source

Polyurethane-Carbon Nanotubes Composite Dual Band Antenna for Wearable Applications. [PDF]

open access: yesPolymers (Basel), 2020
Olejník R   +5 more
europepmc   +1 more source

Design of an airborne dual-polarized tripel stacked patch antenna for broadband SAR application in P-band

open access: yes, 2006
The development of a P-band antenna for airborne SAR application is presented. Wide band operation, static electrical antenna beam pointing and small size were key parameters of this antenna array design.
Gabler, Bernd   +3 more
core  

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

open access: yesAdvanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He   +5 more
wiley   +1 more source

Design of compact and high gain dual-band four-port MIMO antenna array for mm-wave 5G Communications

open access: yesResults in Engineering
This article presents a dual-band compact dual-port and quad-port Multiple-Input Multiple-Output (MIMO) array antenna that uses an array antenna of two elements with high isolation, exclusively designed for 5 G applications in the millimeter-wave band. A
Mohammed Mahaboob Basha   +3 more
doaj   +1 more source

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