Publications

Publications by CTM

2019

Joint User Mobility and Traffic Characterization in Temporary Crowded Events

Authors
Valadar, A; Almeida, EN; Mamede, J;

Publication
CoRR

Abstract

2019

A Token-Based MAC Solution for WiLD Point-To-Multipoint Links

Authors
Leocadio, C; Oliveira, T; da Silva, PM; Campos, R; Ruela, J;

Publication
CoRR

Abstract

2019

Power Transmitter Design for Underwater WPT

Authors
Silva, M; Duarte, C; Goncalves, F; Correia, V; Pessoa, L;

Publication
OCEANS 2019 - Marseille

Abstract

2019

Experimental Evaluation of Coupling Coils for Underwater Wireless Power Transfer

Authors
Duarte, C; Goncalves, F; Silva, M; Correia, V; Pessoa, LM;

Publication
2019 IEEE MTT-S WIRELESS POWER TRANSFER CONFERENCE (WPTC) / IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER (WOW) / WIRELESS POWER WEEK (WPW 2019)

Abstract
In this work we focus on the influence of salt water as the medium between two coupling coils to design a wireless power transfer system. An electrical circuit model and an adequate characterization approach is presented to account for the power losses in the conductive medium. Optimum values for the load and efficiency of the power link are determined. Experimental results are provided to compare the performance of the coupling coils between different coupling mediums (air, fresh and salt water).

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2019

Experimental evaluation of tengs for energy harvesting in maritime applications

Authors
Esteves R.; Rodrigues C.; Ventura J.; Pereira A.; Duarte C.; Correia V.; Pessoa L.;

Publication
OCEANS 2019 - Marseille, OCEANS Marseille 2019

Abstract
Triboelectric nanogenerators (TENGs) have been recognized as a promising harvesting technology to satisfy the power requirements of some marine activities. Our current work addresses the TENG design for the purpose of energy harvesting in the sea. In this paper we present a prototype currently under development, in which spheres made of a triboelectric material move within a limited volume due to external mechanical excitation. The spheres move along a printed circuit board having several electrodes and a PDMS film deposited on top, producing numerous voltage spikes. Experimental results are provided with time-domain wave forms and power characterization of the TENG.

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2019

Deep learning approaches for plethysmography signal quality assessment in the presence of atrial fibrillation

Authors
Pereira, T; Ding, C; Gadhoumi, K; Tran, N; Colorado, RA; Meisel, K; Hu, X;

Publication
PHYSIOLOGICAL MEASUREMENT

Abstract