PES mixed matrix nanofiltration membrane embedded with polymer wrapped MWCNT: Fabrication and performance optimization in dye removal by RSM

2015 ◽  
Vol 298 ◽  
pp. 111-121 ◽  
Author(s):  
Negin Ghaemi ◽  
Sayed S. Madaeni ◽  
Parisa Daraei ◽  
Hamid Rajabi ◽  
Tahereh Shojaeimehr ◽  
...  
Keyword(s):  
Performance Optimization ◽  
Dye Removal ◽  
Nanofiltration Membrane ◽  
Mixed Matrix ◽  
And Performance

PAA grafting onto new acrylate-alumoxane/PES mixed matrix nano-enhanced membrane: Preparation, characterization and performance in dye removal

2013 ◽  
Vol 221 ◽  
pp. 111-123 ◽  
Author(s):  
Parisa Daraei ◽  
Sayed Siavash Madaeni ◽  
Negin Ghaemi ◽  
Mohammad Ali Khadivi ◽  
Laleh Rajabi ◽  
...  
Keyword(s):  
Dye Removal ◽  
Membrane Preparation ◽  
Mixed Matrix ◽  
And Performance ◽  
Grafting Onto

scholarly journals SWIPT in mMIMO system with non-linear energy-harvesting terminals: protocol design and performance optimization

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Kui Xu ◽  
Ming Zhang ◽  
Jie Liu ◽  
Nan Sha ◽  
Wei Xie ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Performance Optimization ◽  
Power Transmission ◽  
Base Station ◽  
Second Phase ◽  
Wireless Power ◽  
Half Duplex ◽  
Non Linear ◽  
Two Phases ◽  
And Performance

Abstract In this paper, we design the simultaneous wireless information and power transfer (SWIPT) protocol for massive multi-input multi-output (mMIMO) system with non-linear energy-harvesting (EH) terminals. In this system, the base station (BS) serves a set of uplink fixed half-duplex (HD) terminals with non-linear energy harvester. Considering the non-linearity of practical energy-harvesting circuits, we adopt the realistic non-linear EH model rather than the idealistic linear EH model. The proposed SWIPT protocol can be divided into two phases. The first phase is designed for terminals EH and downlink training. A beam domain energy beamforming method is employed for the wireless power transmission. In the second phase, the BS forms the two-layer receive beamformers for the reception of signals transmitted by terminals. In order to improve the spectral efficiency (SE) of the system, the BS transmit power- and time-switching ratios are optimized. Simulation results show the superiority of the proposed beam-domain SWIPT protocol on SE performance compared with the conventional mMIMO SWIPT protocols.

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