Abstract In this paper, new methods for increasing the efficiency of photovoltaic pumping systems are presented (PVPS). A feasible implementation battery-free PVPS, as well a cost-effective design, has been proposed. The variation PV power causes its behaviour to transit permanently between characteristics constant current sources and voltage sources, which is studied in paper from perspective....

We have examined the apolipoprotein content of the lipoproteins of several marine mammals by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Their apolipoprotein (apo) B-100, apoB-48, and apoA-I migrated to virtually the same position as the comparable human apolipoproteins. In cetaceans (bottlenose dolphins and killer whales), the molecular mass of the apoE was identical to that of ...

We study the well-known lion-and-man game in which a lion (the pursuer) tries to capture a man (the evader). The players have equal speed and they can observe each other at all times. In this paper, we study the game on the surface of convex terrains. We show that the lion can capture the man in finite number of steps which is a function of the terrain geometry.

A brief overview of Nonstop SQL product will be followed by a description of what is different in ServerWare SQL. The current Nonstop SQL optimizer uses a traditional bottom-up dynamic programming optimizer. This is the same type of optimization algorithm used in System R and many commercial products. The optimizer in the new product is a top-down branch and bound ruledriven cost based optimize...

In order to solve the critical issues in Wireless Sensor Networks (WSNs), with concern for limited sensor lifetime, nature-inspired algorithms are emerging as a suitable method. Getting optimal network coverage is one of those challenging that need be examined critically before any setup. Optimal not only minimizes consumption energy battery-driven sensors but also reduce sensing redundant info...