We are rapidly heading towards a world in which the computing infrastructure will contain billions of devices that are carried or worn by their users as they go through their daily routines. These devices require two key resources to function: power and data. The mobile nature of such devices combined with the economic limitations of size and cost makes it impractical to keep them continually c...

The energy industry has recently begun using smart meters to take fine-grained readings of energy usage. These smart meters enable flexible timeof-use billing, forecasting, and demand response, but they also raise serious user privacy concerns. We propose a novel technique for provably hiding sensitive power consumption information in the overall power consumption stream. Our technique relies o...

Stretching over 750 km (450 mi) east to west from the Atlantic Ocean to the Appalachian mountains, the Commonwealth of Virginia spans five of the more than 20 major physiographic provinces found in North America (Fenneman 1938), making it one of the most diverse landscapes both topographically and floristically in the East. Because of its location between the glaciated, mountainous regions of t...

Tectonic inversion of passive margins is a common but poorly documented process preceding subduction inception. We perform here comprehensive land-sea experimental modeling this key by reproducing the morphotectonic and sedimentary evolution central Algerian margin over last 6 Myr. Our approach based on scaled analog models integrating interactions between crustal shortening surface processes, ...

A well-developed drainage network was carved in the study area a hard calcretized and gypcretized gravelly sand of Dibdibba Formation (Al-Rukham slope) pluvial episodes post-pleistocene age, is referred to be paleo-drainage due current witnessed aridity. This aims investigate geomorphologic, morphometric, stratigraphic characteristics system its role recharging shallow aquifers. Morphometric an...

Optimally combining frequency control with selfconsumption can increase revenues from battery storage systems installed behind-the-meter. This work presents an optimized control strategy that allows a battery to be used simultaneously for self-consumption and primary frequency control. Therein, it addresses two stochastic problems: the delivery of primary frequency control with a battery and th...

Effective route planning for battery electric commercial vehicle (ECV) fleets has to take into account their limited autonomy and the possibility of visiting recharging stations during the course of a route. In this paper, we consider four variants of the electric vehicle-routing problem with time windows: (i) at most a single recharge per route is allowed, and batteries are fully recharged on ...

The effectiveness of mobile robots has always been affected by the amount of time they can spend in the field. Most mobile robots today are equipped with rechargeable batteries which allow a robot to recharge in the field without extended interruption of its work. Mobile recharging units are crucial for a team of robots to effectively perform their assigned tasks over long periods of time. Mobi...

Jussi Ruutu, Nokia Research Center, Finland Jukka K. Nurminen, Aalto University, Finland *corresponding author Kari Rissanen, Helsinki Region Transport, Finland ABSTRACT Because of losses in electricity conversion and storage only part of the energy taken from the power grid produces useful work in a battery-operated mobile device; the rest evaporates as heat. We analyze the recharging activ...