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Slippage Detection with Piezoresistive Tactile Sensors


One of the crucial actions to be performed during a grasping task is to avoid slippage. The human hand can rapidly correct applied forces and prevent a grasped object from falling, thanks to its advanced tactile sensing. The same capability is hard to reproduce Continue reading

Antenna Arrays for Line-of-Sight Massive MIMO: Half Wavelength Is Not Enough


The aim of this paper is to analyze the array synthesis for 5 G massive MIMO systems in the line-of-sight working condition. The main result of the numerical investigation performed is that non-uniform arrays are the natural choice in this kind of application. Continue reading

Impact of Beamforming on the Path Connectivity in Cognitive Radio Ad Hoc Networks


This paper investigates the impact of using directional antennas and beamforming schemes on the connectivity of cognitive radio ad hoc networks (CRAHNs). Specifically, considering that secondary users use two kinds of directional antennas, i.e., Continue reading

First Results of Field Absolute Calibration of the GPS Receiver Antenna at Wuhan University


GNSS receiver antenna phase center variations (PCVs), which arise from the non-spherical phase response of GNSS signals have to be well corrected for high-precision GNSS applications. Without using a precise antenna phase center Continue reading

1-Ghz CMOS Analog Signal Squaring Circuit


In analog signal processing the squaring circuit represents the core for implementing an analog signal having a value representing the square of the input signal. For example, calculating the square of input signal is necessary in adaptive processing Continue reading

Compressive Sensing Analog Front End Design In 180 nm CMOS Technology


In order to accurately reconstruct signal waveform a signal must be sampled at least twice as fast as the bandwidth of the signal. Ultra Wideband (UWB) signals have extraordinary potential for high information transmission while a central focus of wireless Continue reading

Automating Model Building in Ligand-based Predictive Drug Discovery Using the Spark Framework

Automation of model building enables new predictive models to be generated in a faster, easier and more straightforward way once new data is available to predict on. Automation can also reduce the demand for tedious bookkeeping that Continue reading