Gerard J. M. Janssen

TL;DR: An overview of the state of the art of recent research activities in noncoherent ultra-wideband receiver front ends is provided with a focus on architectures that perform the initial signal processing tasks in the analog domain, such that the receiver does not need to sample the UWB received signals at Nyquist rate.

TL;DR: In this article, the water transport in proton-exchange-membrane fuel cells has been experimentally investigated by measurements of the effective or net drag coefficient, and the results are presented for a wide range of operating conditions (current density, temperature, pressure, stoichiometry and humidity of the inlet gases), as well as for different types of membrane-electrode assemblies.

TL;DR: An analytical model for evaluation of the bit-error rate (BER) of the stationary frequency selective indoor channel is developed for a coherent binary phase shift keying (BPSK) receiver, based on the complex impulse response of the channel.

TL;DR: In this paper, the influence of CO2 on the performance of PEM fuel cells was investigated by means of fuel cell experiments and cyclic voltammetry, and the effect varies from small to significant depending on the composition and microstructure of the fuel cell anode.

TL;DR: In this paper, a steady-state, two-dimensional model is presented and discussed that describes the water transport in a proton exchange membrane fuel cell, where concentrated solution theory is used to describe the transport of water in the membrane, and of water vapor and liquid water in electrodes.