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The Institute of Electrical and Electronic Engineers traces its history to the founding of the American Institute of Electrical Engineers in the spring of 1884. We know that the AIEE included such notables as Thomas Edison and Alexander Graham Bell, but who were some of the other founders and what technologies did they bring to the organization? This paper attempts to shed more light on these questions...
We have used the interface between a nanochannel and a microchannel as a tool for applying controlled forces on a DNA molecule. A molecule, with a radius of gyration larger than the nanochannel width, that straddles such an interface is subject to an essentially constant entropic force, which can be balanced against other forces such as the electrophoretic force from an applied electric field. By...
The influence of EHD motion on charge convection in stressed contaminated non-polar liquids has been investigated. The test liquids, Norpar 12 and Voltesso 35 were artificially contaminated by adding a certain quantity of fine carbon black particles or Stadis 450, an ionic impurity. The role played by the charge convection in the passage of current was analyzed by studying the transient current...
An experimental investigation of electric field induced motion in transformer oil is reported. The oil was subjected to a voltage step giving fields of up to 5 MV /m. The observations are explained in terms of a model based on behavior of particles both at the oil/electrode interface and in the bulk of the oil. The results indicate that charged particles with diameters less than one micro-meter, rather...
An experimental tool with a response time of milliseconds capable of indicating both the direction and magnitude of induced liquid motion within a stressed test gap has been developed. Observations are made at electrode surfaces with minimal disturbance. The basic principle of operation involves the use of an electrobalance to measure the force created by moving fluid at an electrode surface. The...
The results of an experimental investigation of electric induced motion in mineral oil between plane parallel copper electrodes are presented. Instability field and dissipation factor were measured under varying frequency, electrode spacing, temperature and voltage-stress conditions. The motions were observed by means of laser schlieren. It is shown that the field is in good agreement with theoretical...
The temporal development of prebreakdown currents in uniform field air gaps (around 1cm. length) is investigated. These gap currents were determined by observation of changes in potential across a resistor in series with the gap. While in previous work avalanche initiating electrons were released mainly through the use of spark gap radiation, here a short duration nitrogen laser pulse released electrons...
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