Results 71 to 80 of about 55,363 (283)

On the comparison of energy sources: feasibility of radio frequency and ambient light harvesting

, 2015
With growing interest in multi source energy harvesting including integrated microchips we propose a comparison of radio frequency (RF) and solar energy sources in a typical city.
Coutsias, Evangelos, Galochkina, Zhanna S., Korotkevich, Alexander O., Lavrova, Olga   +3 more
core   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

A 900-2400 MHz AC-DC Rectifier Circuit for Radio Frequency Energy Harvesting

MATEC Web of Conferences, 2016
This paper presents a 900-2400 MHz AC-DC rectifier circuit for radio frequency (RF) energy harvesting. The proposed circuit consists of a rectifier and charge pump.
Rosli M.A., Murad S.A.Z., Ismail R.C.
doaj   +1 more source

Full-Duplex Cooperative Cognitive Radio Networks with Wireless Energy Harvesting

, 2017
This paper proposes and analyzes a new full-duplex (FD) cooperative cognitive radio network with wireless energy harvesting (EH). We consider that the secondary receiver is equipped with a FD radio and acts as a FD hybrid access point (HAP), which aims ...
Chen, He, Li, Yonghui, Vucetic, Branka, Yeoh, Phee Lep, Zhang, Rui   +4 more
core   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

Advanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa, Moisés A. de Araújo, Joaquim Puigdollers, Pablo Ortega, Teresa Andreu, Cristobal Voz, Edgardo Saucedo, Lucia H. Mascaro   +7 more
wiley   +1 more source

D2D Lifetime Analysis in Context of Radio Frequency Energy Harvesting

Wireless Personal Communications, 2023
Abstract Device-to-device (D2D) communication has been recognized as one of the promising paradigms for supporting the next generation of cellular networks, it brings several benefits in terms of reducing time delay for communication, and providing better spectrum efficiency.
ABDELKARIM CHINBOU, Adil BOUMAALIF, Ouadoudi ZYTOUNE   +2 more
openaire   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Determining the Direction of Radio Wave Reception for Maximum Radiation Using Genetic Algorithm and RF to DC Conversion Efficiency Analysis

Engineering Reports
Analyzing the amount of energy received from radio waves can be effective in routing radio wave radiation. In this study, a new plan for routing radio transmitters is presented using an algorithm compatible with radio frequency energy harvesting (RFEH ...
S. Hosseini, Changiz Ghobadi, Javad Nourinia, M. Shokri   +3 more
doaj   +1 more source

Performance Analysis and Modelling of a Radio Frequency Energy Harvesting System

Advances in Electrical and Computer Engineering, 2013
The development of autonomous battery powered systems which can be deployed in inaccessible locations for sensing applications has determined the development of various energy harvesting systems.
CIRSTEA, C., PETRITA, T., POPESCU, V., GONTEAN, A.   +3 more
doaj   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source