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  1. potteryshard

    Trapped Vortex Ducted Fan...

    I previously posted this query on the Aerodynamic forum, but there doesn't appear to be much traffic there, so I'd like to try again... Please forgive me for bothering people outside my supposed speciality, but the following thought occurred (and yes, before you ask; it was painful) that I...
  2. potteryshard

    A Ridiculous Thought...

    Please forgive me for bothering people outside my supposed speciality, but the following thought occurred (and yes, before you ask; it was painful) that I would like to present as a question for discussion. Is it possible, rather than controlling vortex shedding from the tips of ducted fan...
  3. potteryshard

    Standing Waves in Car Antenna...

    Warning: Completely useless question... Driving home last night at highway speeds in drizzle, I noticed that the factory antenna was vibrating in a standing wave pattern... I've had a couple of other vehicles whose antennas did the same thing: oscillate in light rain or heavy fog, otherwise...
  4. potteryshard

    Advanced Meter Infrastructure...

    The small southwestern US utility for which I work is embarking on the specification, purchase, and implementation of an automated advanced metering infrastructure, and is now in the throes of deciding upon which system to select for our water and electric systems. This is an arena in which by...
  5. potteryshard

    Overhead Distribution Recloser Maintenance...

    Does anyone know of economic studies performed regarding the desireability of implementing a scheduled maintenance/replacement program for in-line overhead (mostly oil-filled, oil-interrupting) distribution reclosers? Because a maintenance program will require replacement of the field unit...
  6. potteryshard

    Straight Line Reciprocating Engine...

    Forgive me all for posting this in all probability hare-brained notion; it is far out of my speciality, not that I would make any claim to know of what I speak even in that venue. Nonetheless, I'd like to ask if any potential exists for this notion? Please see the attached .PDF outlining my...

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