The rapid growth of the power demand in the transport sector results in a dramatic increase of carbon dioxide emissions. This is only one of many reasons why alternative drive concepts, especially electric mobility, have never been more in focus than today. A future change from combustion engines to electric drives leads to additional loads, which gives rise to the necessity to take corrective ...

The electric charges on an enzyme may move concomitantly with a conformational change. Such an enzyme will absorb energy from an oscillating electric field. If in addition the enzyme has a larger association constant for substrate than for product, as is often true, it can use this energy to drive the catalyzed reaction away from equilibrium. Approximate analytical expressions are given for the...

The continued development and testing of the Top Hat Electric Propulsion Plume Analyzer (TOPAZ) is presented for high-powered electric propulsion far-field plume diagnostics. TOPAZ incorporates a ‘top hat’ design with an analyzer constant of 100 resulting in a wide energy range and a high energy resolution. The design of the electrostatic and mass analyzer sections for TOPAZ is described. The k...

In this report, the distribution and deviation of electric field in the active medium of the TE CO2 laser has been investigated due to the injection of net electron charge beam as a plasma generator. Some parameters of system have been considered, such as density and mean-free-path of injected charge beam. The electric potential and electric field distribution have been simulated by solving the...

I. INTRODUCTION Flywheel energy storage devices are composed of a spinning composite disk in an low-pressure enclosure designed to contain the debris in the case of operation failure [18]. An electric motor-generator connector is used to convert the electric energy to kinetic energy by applying a torque on the flywheel. The torque can be positive (charge) or negative (discharge). The flywheel l...

in this paper, a rectangular sandwich plate with a constrained layer and an electrorheological (er) fluid core is investigated. the rectangular plate is covered an er fluid core and a constraining layer to improve the stability of the system. the two outer layers of the sandwich structure are elastic. the viscoelastic materials express the middle layer behavior under electric field and small st...

UV radiation and ozonation were investigated as disinfection alternatives for the wastewater treatment plant. The inactivation of total and fecal coliforms using ozone and ultraviolet radiation as separate treatments was evaluated. Different ozone concentrations (3 to 40 mg O3/L) were applied and UV fluencies ranging from 8.5 to 12 mJ/cm at different pH values (from 5 to 9) were tested. Best re...

This paper describes the use of piezoelectric polymers in order to harvest energy from people walking, together with the electronics needed to increase energy transfer and storage efficiency. An electrostatic generator was also included in order to increase energy harvesting. There have been independent solutions in increasing the harvesting efficiency either on the mechanical harvester or on i...