Results 91 to 100 of about 6,700 (283)
A Power-efficient Radio Frequency Energy-harvesting Circuit
, 2013 This work aims to demonstrate the design and simulation of a Radio Frequency (RF) energy-harvesting circuit, from receiving antenna to the point of charge collection. The circuit employs a custom-designed antenna based around Koch fractal loops, selected
Khoury, Philip
core +2 more sources
Advanced Functional Materials, EarlyView.A shape‐memory microneedle system enables reproductive hormone therapy through a single transdermal insertion. The X‐shaped device sustains follicle‐stimulating hormone release for three days, and mild heating restores the O shape to trigger burst human chorionic gonadotropin release.
Sungwoo Cho +8 more
wiley +1 more source
, 2013 This paper presents the testing results of a wireless sensor communication system with low power consumption integrated with an energy harvesting power source.
Marsic, Vlad +2 more
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Development of a Radio Frequency Rectifier Circuit for Radio Frequency Energy Harvesting
The aim of this work is to develop a radio frequency rectifier circuit for radio frequency energy harvesting that can produce voltage from ambient radio frequency (RF) signal to energize low powered sensor devices or Internet of Things networks. The radio frequency rectifier was first designed and simulated in Proteus CAD software environment in other ...
Idubor, S.O., Ogbeide, K.O., Okosun, O.
openaire +1 more source
Secure 5G Wireless Communications: A Joint Relay Selection and Wireless Power Transfer Approach
IEEE Access, 2016 In this paper, we investigate the secrecy performance of an energy harvesting relay system, where a legitimate source communicates with a legitimate destination via the assistance of multiple trusted relays.
Nam-Phong Nguyen +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh +4 more
wiley +1 more source
Multislot Simultaneous Spectrum Sensing and Energy Harvesting in Cognitive Radio
Energies, 2016 In cognitive radio (CR), the spectrum sensing of the primary user (PU) may consume some electrical power from the battery capacity of the secondary user (SU), resulting in a decrease in the transmission power of the SU.
Xin Liu +4 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim +5 more
wiley +1 more source
Optimization of voltage doublers for energy harvesting applications
, 2013 Energy harvesting is increasingly enabling the expansion of wireless sensor networks in challenging applications by replacing batteries in low power sensors. Many forms of energy harvester suffer from low output voltage which can be partially compensated
Judd, Martin, Roscoe, Nina
core
Radio-Frequency Identification (RFID) Item Finder Using Radio Frequency Energy Harvesting [PDF]
, 2019 This paper investigates Radio Frequency Identification (RFID) finder powered by Radio Frequency Energy Harvesting. Misplaced and losing item is a normal situation that happens almost anytime and anywhere.
Jamil Alsayaydeh, Jamil Abedalrahim +3 more
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