Results 71 to 80 of about 168,119,012 (264)

A Full Physical Strategy for Electrical Contacts on Laser‐Induced Graphene (LIG) Electrodes

open access: yesAdvanced Electronic Materials, EarlyView.
A fully dry fabrication strategy combining PVD and dual‐laser processing enables direct integration of laser‐induced graphene with metallic current collectors. Ultralow Au‐LIG contact resistance is achieved without binders, adhesives, or chemical treatments, while preserving electrochemical performance.
Davide Arcoraci   +9 more
wiley   +1 more source

A Low-Complexity Solution for Optimizing Binary Intelligent Reflecting Surfaces towards Wireless Communication

open access: yesFuture Internet
Intelligent Reflecting Surfaces (IRSs) enable us to have a reconfigurable reflecting surface that can efficiently deflect the transmitted signal toward the receiver.
Santosh A. Janawade    +5 more
doaj   +1 more source

Flexible and Transparent Ga2O3/NiO Photovoltaic Diode for Full‐Wave Rectification in Wearable Optoelectronics

open access: yesAdvanced Electronic Materials, EarlyView.
Flexible transparent electronics require efficient power management without sacrificing visibility or mechanical compliance. This work presents a room‐temperature‐fabricated amorphous Ga2O3/NiO heterojunction diode on a flexible substrate that enables full‐wave rectification, UV photovoltaic energy harvesting, and self‐powered photodetection.
Sourov Hossain   +7 more
wiley   +1 more source

Chemical Switching Between B2N and B2C Homoaromaticity

open access: yesAngewandte Chemie, EarlyView.
We report the synthesis of homoaromatic 1‐aza‐2,4‐diazadiboretane with a bicyclic four‐membered NB2C motif and demonstrate experimentally and theoretically that the homoaromatic delocalization can also be chemically shifted from the B2N to the B2C moiety by deprotonation of the ring carbon atom.
Tim Wiesmeier   +5 more
wiley   +2 more sources

Path Profile Analysis of a LOS System Using 3-D Digital Map

open access: yesمجلة النهرين للعلوم الهندسية, 2008
Exponential growth of mobile communications, radio links and wireless networks has increased interest in many topics in radio propagation. Much effort is now devoted to refine radio propagation path-loss models for urban, suburban, and other environments
Jabir S. AZIZ, Saba T. HAMADA
doaj  

Adaptive Ensemble Clustering Using Meta-Heuristics-Algorithms for Global Navigation Satellite System (GNSS) Line of Sight (LOS)/Non Line of Sight (NLOS) Classification

open access: yesAlgorithms
Global Navigation Satellites Systems (GNSSs) have become a predominant feature in the digital life of citizens, and they provide positioning services in various applications including pedestrian and vehicular navigation.
Gianmarco Baldini, Fausto Bonavitacola
doaj   +1 more source

Reliability of line-of-sight radio-relay systems

open access: yesJournal of Telecommunications and Information Technology, 2006
The modern radio transmission systems are specifically designed for catching principally two main objectives: on one side to provide a radio solution for long distance where large configurations are required to fulfill the high capacity transmissions ...
Jan Bogucki, Ewa Wielowieyska
doaj   +1 more source

100 Glimpses : Christmas Cards

open access: yes, 2023
100 Glimpses is a series of short documentaries produced by the Sight Center of Northwest Ohio. The series explores the organization's history. The Sight Center was founded in 1923 as the Toledo Society for the Blind.
Sight Center of Northwest Ohio (Toledo, Ohio)
core  

Import Wheat Tenders and the Effects of the Russian Invasion

open access: yesAgribusiness, EarlyView.
ABSTRACT Risk and volatility for many commodities escalated sharply following the Russian invasion of Ukraine, creating numerous uncertainties for trading firms and importers. The purpose of this study is to analyze the bidding behavior in Egyptian wheat import tenders in the pre‐ and post‐invasion periods.
William W. Wilson   +2 more
wiley   +1 more source

100 Glimpses : Sight Center Summer Camp Program

open access: yes
100 Glimpses is a series of short documentaries produced by the Sight Center of Northwest Ohio. The series explores the organization's history. The Sight Center was founded in 1923 as the Toledo Society for the Blind.
Sight Center of Northwest Ohio (Toledo, Ohio)
core  

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