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Many closed-loop, continuous-control brain-machine interface (BMI) architectures rely on decoding via a linear readout of noisy population neural activity. However, recent work has found that decomposing neural population activity into correlated and uncorrelated variability reveals that improvements in cursor control coincide with the emergence of correlated neural variability. In order to address...
This paper presents a thermochromic test body to qualitative evaluate the Effective Radiation Area (ERA) of Therapeutic Ultrasound (TUS) devices. The thermal areas produced by three transducers are measured and compared to the ERA of the same transducers measured according to the IEC 61689 standard. A linear relationship was obtained between both kinds of areas suggesting that a quantitative relation...
Distributed Raman amplifiers (DRAs) have gained interest for elastic optical networking (EON) because they allow, in some configurations, to increase the amplification bandwidth, to enhance the gain flatness and to decrease the noise insertion compared to conventional erbium doped fiber amplifiers (EDFAs). However, there are operational issues in the deployment of DRAs because the transmission fiber...
This paper presents a solution for high voltage current transformers onsite errors verification, using a system composed by an optical current sensor as reference standard, suitable for live line installation up to 550 kV. The system is described; its performance results are presented, as well as field applications and results. Some limitations that have to be overcome to obtain a reasonable measurement...
The present work describes a method for acquiring thermal images generated by physiotherapeutic ultrasonic beams along a phantom of fat tissue made of PVCP. Five tests were performed in three ultrasound equipments, transducers operating at 1 and 3 MHz and nominal intensity 1.0 W. cm-2, totalizing thirty infrared thermal images that were then evaluated on a PC-like microcomputer. The method seems to...
In this paper, we propose angle of arrival estimation algorithms for arbitrary array geometries. The proposed methods extend the root-WSF and modified variable projection (MVP) algorithms to arbitrary array configurations. This is accomplished by employing the recently introduced manifold separation technique (MST), which stems from wavefield modelling. The algorithms process the data in the element-space...
The NEMO collaboration proposes to build an underwater neutrino telescope located South-East off the Sicily coast. This paper describes the concepts underlying the communication link design going over the whole data acquisition and transport from the front-end electronics to the module sending data on-shore through a fiber optic link which relies on Dense Wavelength Division Multiplexing. An on-shore...
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