Abstract: This disclosure provide various techniques for decreasing the amount of energy consumed on an electronic device by one or more background processes. By implementing a fast energy accounting engine that may quickly detect changes in energy usage by the background processes and report the changes to a dynamic activity scheduler, a system may decrease the overall energy consumed by the one or more background processes.

Abstract: The present invention provides an electrochemical method for the removal of arsenate from drinking water, wherein the arsenate is removed by adsorption of metal hydroxide, formed by ‘in-situ’ anodic oxidation. The electrochemical method, of the present invention, for the removal of arsenate from drinking water, obviates the drawbacks of the commonly used physico-chemical treatments processes such as lime softening, sorption techniques and membrane techniques. The electrochemical method consists of an electrochemical cell fitted with an anode of mild steel or aluminium plate and stainless steel cathode with an inter-electrode distance of 0.5 to 1.5 cm. Drinking water containing 0.5 to 3.0 mg/l of arsenate at a pH in the range of 3-10 and at a temperature between 20-60° C. is electrolysed at anode and cathode current densities between 0.05-0.2 A.dm?2. The iron hydroxide/aluminium hydroxide formed from the anode during electrolysis adsorbs the arsenate present in the water and settles at the bottom.

Abstract: The MagnoDrive is a drive developed to generate mechanical torque/mechanical power output as an electric motor does. This uses the magnetic field reaction to produce the rotational motion without any external power input. In a way, it extracts the magnetic energy from the environment (or uses internal stored energy of the magnet) to produce the power output. This uses reaction of the magnetic fields of permanent magnets to produce rotational motion. This is linearly scalable to meet high power demand, by constructing many stages on single shaft as a Multistage MagnoDrive. This can be coupled directly to any mechanical system or to a generator to get electric power output. Electric powered MagnoDrive works on the same principle as a MagnoDrive except, the permanent magnets are replaced with electro magnets. This is pollution free, cost free energy supply source, aimed to serve every one everywhere.