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  • Users: SylvestreW
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  1. SylvestreW

    Presenting paper at conference if leaving company

    I'm looking for opinions on my situation. I currently work for Company A. There are a few professional conferences that have abstract submission deadlines in the next few weeks. I have some ideas that I'd like to present a paper on. The basis of the paper(s) will be from work done while...
  2. SylvestreW

    Client wants a performance guarantee

    I work as a consultant engineer. Our client has a problem with their building and we have proposed a solution. Detailed design & engineering will cost about $200K. The client wants a financial and letter guarantee i.e. that our solution will be effective or we don't get paid (either at all, or...
  3. SylvestreW

    Is it easier to buy out an existing company, or start own?

    There are a few of us who are ready, willing and potentially able (financially etc.) to venture out on our own. We can start a business from scratch (with some clients we have) however another option is available. There's an existing company - a 3 man team, with the original owner who's in his...
  4. SylvestreW

    Question re: bullying

    My wife has a situation at work that we're trying to figure out how to handle. It's a small office, approx. 10ppl, with 1 manager, 3 intermediates and a bunch of juniors (<3 yrs out of school). The office is a sattelite office, with the head office in another province. HR is at head office...
  5. SylvestreW

    Geometry of inner ear bones

    Does anyone know where I can find/buy/build the geometry of the human inner ear bones? Prefebly in a stl form I can quickly manipulate and feed into ANSYS. Thanks. - Aercoustics.com
  6. SylvestreW

    Sound file of bad bearing?

    Was just curious, does anyone have a sound file (mp3, wav, etc) of the sound of a bad bearing compared to a good bearing? I don't work in that field but always hear about this so I'm curious to actually hear the difference myself. TIA.
  7. SylvestreW

    Stopping unqualified people from doing work (?)

    Someone from another group in my company asked to borrow a sound level meter (for the techies, a B&K type-1 logging SLM). I didn't have a problem letting them use it and enquired as to what the project was. The person was going to do some mould sampling (their speciality) and as part of the...
  8. SylvestreW

    LF: Data on relation between vibration level and audible level

    Afternoon all, I'm looking for some published data on what levels of vibration would start to cause someone to detect it audibly. I've found this link: http://www.ashraeregion7.org/tc26/pastprograms%5CCriteria%5CVibration-criteria.pdf with a graph on pg. 7 by T. Mikawa but I was wondering if...
  9. SylvestreW

    Animate a graph and export to Powerpoint?

    Morning all, I have some data that I am plotting in Matlab and I'd like to somehow create an animation and export to Powerpoint for my presentation. In a nutshell, I have a vibration profile over a range of frequencies, and the vibrations change depending on the RPMs of the motor. What I...
  10. SylvestreW

    Base 2 Log Plot in Excel - How?

    I'd like to plot some data on a semilog plot but in excel the default for log plots is base 10 (i.e. 1,10,100 etc). Is it possible to setup a plot such that the x-axis is base 2, and starts at 125 (i.e. 125,250,500 etc)? (Reason is - I'm trying to plot some noise data on a dB vs. Octave graph...
  11. SylvestreW

    Infra sound

    http://www.thestar.com/NASApp/cs/ContentServer?pagename=thestar/Layout/Article_Type1&call_pageid=971358637177&c=Article&cid=1163371809170 “Silent sound of the wind too strong for family Nova Scotians flee home, blame vibrations from 17 turbines for loss of sleep, headaches Nov. 13, 2006...
  12. SylvestreW

    Converty Spline to Line

    I have AutoCAD 2006 LT and I received a drawing (.dwg) file that was scanned, and converted into a drawing. I'm not sure of the process the client used but at the end of the day, I have a file where all the objects are "splines". I have to take the drawing, save it as a .dxf and import it into...
  13. SylvestreW

    CADNA - Anyone use it?

    See http://www.scantekinc.com/software/cadna.htm It's an outdoor noise propagation software. Anyone have comments/critiques?
  14. SylvestreW

    freeware program to view mathcad programs

    Is there a freeware program available that will open files for viewing only? (Didn't see this in the faq so my apologies if it's asked often).
  15. SylvestreW

    Calculating sound level from air flow through a stack? possible?

    I'm faced with an interesting problem. I frequently need to determine the sound power levels coming from industrial exhaust stacks. Problem is, a lot are inaccessible (we're talking >30m above grade). In most cases, I know the flow rate (cfm), the diameter, if the flow is laminar or cyclonic...
  16. SylvestreW

    Website for Absorption Coefficients of materials

    Does a website like this exist? What I'd like to do is have an idea of general walls, materials etc that I can use around equipment to calculate which would be most effective. Specifically, things like a sheet of stainless steel, or brick wall etc. not exotic materials.

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