Many electrochemical/bioelectrochemical systems are intrinsically nonstationary and are affected by time-dependent phenomena. The requirement of stationarity in the classical version of impedance spectroscopy appears to be in conflict with the essential properties of the object, therefore a post-experimental mathematical/analytical procedure is necessary for the reconstruction of the 'true' imp...

in recent years many researches are carried out to develop robots for agricultural applications. one of the main steps in agricultural robot fabrication is the generation of guidance signals. the objective of this research was a feasibility study of ultrasonic sensors in generating guidance signals to determine the position and orientation of a mobile robot for greenhouse applications. a series...

Although the past 20 years have seen significant advances in tailoring materials for improving performance of bioelectrochemical systems, recently, there been efforts utilizing synthetic biology toolkit engineering organisms systems. This review discusses use to engineer non-native properties into systems increasing diversity fuel utilization energy applications, allowing novel electrosynthetic...

The research areas of mobile robotic sensors lie in the intersection of two major fields of investigations carried out by quite distinct communities of researchers: autonomous robots and mobile sensor networks. Robotic sensors are micro-robots capable of locomotion and sensing. Like the sensors in wireless sensor networks, they are myopic: their sensing range is limited. Unlike the sensors in w...

We consider the problem of uniformly dispersing mobile robotic sensors in a simply connected orthogonal space of unknown shape. The mobile sensors are injected into the space from one or more entry points and rely only on sensed local information within a restricted radius. Unlike the existing solution, we allow the sensors to be asynchronous and show how, even in this case, the sensors can uni...

This paper gives first of all the definition of the work function of an electronic as well as an ionic conductor. FET-type gas sensors known from the literature are considered in view of this basic theory and the parameter of the work function which is responsible for the sensing properties is noticed. This appears not always to be possible for the various types of gas sensors, in this case the...

Hydrothermal chimneys are striking, characteristic features of marine hydrothermal vents. These chimneys are dynamic environments occupied by a diversity of microbes whose distribution is typically concordant with mineralogy and temperature. Recent studies indicate that these chimney assemblages are conductive and present the possibility that microbial extracellular electron transfer may occur ...