Results 41 to 50 of about 183,024 (281)

Wireless Power Transfer in Massive MIMO Aided HetNets with User Association [PDF]

, 2016
This paper explores the potential of wireless power transfer (WPT) in massive multiple input multiple output (MIMO) aided heterogeneous networks (HetNets), where massive MIMO is applied in the macrocells, and users aim to harvest as much energy as ...
Jin, Shi, Wang, Lifeng, Wong, Kai-Kit, Zheng, Zhongbin, Zhu, Yongxu   +4 more
core   +2 more sources

A wireless power supply EMI suppression method in implantable optogenetic circuits

Dianzi Jishu Yingyong
In this paper, a wireless implantable optogenetic hardware structure is proposed. In the experimental process, a magnetic resonant wireless energy technology is used outside the organism to power the in vivo circuit; however, in the Wireless Energy ...
Ji Yanping, Li Jiawei, Chai Donglin, Zhao Boyan, Zhao Yanran, Wang Shirui, Wang Wensi, Zheng Mengyi   +7 more
doaj   +1 more source

Wireless adiabatic power transfer

, 2010
We propose a technique for efficient mid-range wireless power transfer between two coils, by adapting the process of adiabatic passage for a coherently driven two-state quantum system to the realm of wireless energy transfer.
A.A. Rangelov, Abragam, Allen, Brown, H. Suchowski, Hamam, Haus, Karalis, Kurs, Messiah, N.V. Vitanov, Ramo, Slichter, Suchowski, Suchowski, Vitanov, Y. Silberberg   +16 more
core   +1 more source

Wireless Powered Communication: Opportunities and Challenges

, 2014
The performance of wireless communication is fundamentally constrained by the limited battery life of wireless devices, whose operations are frequently disrupted due to the need of manual battery replacement/recharging.
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Low-Complexity Energy Antenna Allocation for Wireless-Powered IoT Systems

IEEE Access
To improve the performance of a wireless-powered Internet of Things (IoT) system, a multi-source wireless power transfer technique based on a multi-antenna beamforming architecture has emerged as an attractive solution.
Mingfu Li, Guan-Yu Lu, Cheng-Bin Yao, Huei-Wen Ferng   +3 more
doaj   +1 more source

Dynamic Resource Allocation for Multiple-Antenna Wireless Power Transfer

, 2013
We consider a point-to-point multiple-input-single-output (MISO) system where a receiver harvests energy from a wireless power transmitter to power itself for various applications.
Guan, Yong Liang, Ho, Chin Keong, Yang, Gang   +2 more
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Wireless Power Transfer Protocols in Sensor Networks: Experiments and Simulations

Journal of Sensor and Actuator Networks, 2017
Rapid technological advances in the domain of Wireless Power Transfer pave the way for novel methods for power management in systems of wireless devices, and recent research works have already started considering algorithmic solutions for tackling ...
Sotiris Nikoletseas, Theofanis P. Raptis, Alexandros Souroulagkas, Dimitrios Tsolovos   +3 more
doaj   +1 more source

Cluster-based wireless energy transfer for low complex energy receivers [PDF]

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2018
This paper proposes a novel channel estimation method and a cluster-based opportunistic scheduling policy, for a wireless energy transfer (WET) system consisting of multiple low-complex energy receivers (ERs) with limited processing capabilities. Firstly, in the training stage, the energy transmitter (ET) obtains a set of Received Signal Strength ...
Samith Abeywickrama, Tharaka Samarasinghe, Chau Yuen, Rui Zhang 0006   +3 more
openaire   +2 more sources