This paper provides an overview of existing technologies to measure flow parameters, such as material velocity and material concentration, in industrial transportation processes of particulate and powdery solids with a focus on pneumatic conveying. Restrictions, advantages and drawbacks of state of the art measurement principles are discussed. We show that capacitance-based sensing with suitabl...

A major part of politics is the conveying of ideas. This is the function of political communication. Of the multitude of ways this conveying can take place, deliberation in a public sphere is one that Habermas (1994) termed optimal. Both public spheres and deliberative democracy presuppose an equality of all participants in a debate and the superiority of good arguments. Presently, both feature...

The aim of this paper is to present an analysis on four basic emotions – anger, happiness, sadness, unemotional statethat are expressed during the speech, by using fundamental frequency curves (henceforth F0). In this experimental study, the sentences that can be expressed with four emotions were read by non-professional actors with four different emotions. The F0 curves for each utterance are ...

This paper describes a system for object detection on a conveying belt. The detection algorithms are based on the permanence effect that basically consists on increasing a state variable associated to each pixel of the sensor when the moving element is located on that particular pixel point, and to decrease it otherwise. Using this permanence effect, a characteristic called LSR can be obtained ...

Awareness of others’ interests can lead to fruitful collaborations, friendships and positive social change. Interviews of groups involved in both research and corporate work revealed a lack of awareness of shared interests among workers sharing an organizational affiliation and collocated in the same building or complex but still physically separated (e.g., by walls or floors). Our study showed...

The present study investigates temporal characteristics of speech conveying emotion and attitude. First, a production study was conducted at the global level of the whole utterance, determining the p̋roduction values of “global speech rate” f̋or each emotion and attitude involved in the study. A perception study ̋ was also carried out at this global level, seeking perceptually optimal “global spe...

In this work the electrostatics of the pneumatic conveying of granular materials in a non-conducting (PVC) vertical pipe is studied using Electrical Capacitance Tomography (ECT) system. The non-conducting wall in general attains static charges arising from particle-wall collisions in the initial periods of conveying process and then reaches equilibrium with the surroundings. The polarity of par...

A crucial aspect in the design of navigational aids for the blind is the transmission of information to the user. Vibrotactile stimulation is a preferred means, as opposed to auditory stimuli that may interfere with the use of environmental auditory cues for situational awareness. Conveying directional information is of particular importance and has traditionally be achieved with several tactor...