Results 91 to 100 of about 55,860 (277)

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

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +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, Trung Q. Duong, Hien Quoc Ngo, Zoran Hadzi-Velkov, Lei Shu   +4 more
doaj   +1 more source

Novel Sparse-Coded Ambient Backscatter Communication for Massive IoT Connectivity

, 2018
Low-power ambient backscatter communication (AmBC) relying on radio-frequency (RF) energy harvesting is an energy-efficient solution for batteryless Internet of things (IoT).
Kim, Dong In, Kim, Tae Yeong
core   +1 more source

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

Advanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar, Xuen J Ng, Lukas Lechel, Ashish Chand Rajwar, Hendrik Bargel, Abhishek A. Jalan   +5 more
wiley   +1 more source

Novel two-dimensional radio frequency energy harvesting system: Design and implementation

AIP Advances
Recently, numerous published research studies and projects have focused on designing a passive charger for earphones and mobile phones. Such studies depend on a one-dimensional (1D) voltage multiplier circuit using a Schottky diode.
Morsy Ahmed Morsy Ismail, Khalid Saleh
doaj   +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, Zhenyu Na, Min Jia, Xuemai Gu, Xiaotong Li   +4 more
doaj   +1 more source

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

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Bio-inspired optimization algorithms applied to rectenna design

Big Data Analytics, 2018
A comparative study of the use of bio-inspired optimization technologies including the Cuckoo Search (CS) algorithm, the Differential Evolution (DE) algorithm, and Quantum-behaved Particle Swarm Optimization (QPSO) in the design of microstrip patch ...
Menglong He, Zhao Wang, Mark Leach, Zhenzhen Jiang, Eng Gee Lim   +4 more
doaj   +1 more source