ON 20141002@9:00:03 AM at page:
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James Newton[JMN-EFP-786] See also:
http://www.mcbsys.com/techblog/2010/07/template-persistent-cache-error-with-classic-asp-under-iis-7/
Active Server Pages 5 10/1/2014 7:02:53 PM 4 <BR>
Event Details:    Error: The Template Persistent Cache initialization failed for Application Pool ''ASP.NET v4.0'' because of the following error: Could not create a Disk Cache Sub-directory for the Application Pool. The data may have additional error codes.. <BR>




ON 20141008@7:15:34 PM at page:
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ON 20141008@7:32:30 PM at page:
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ON 20141016@2:25:23 PM at page:
On a web page you were interested in at:
http://massmind.org/Techref/new/letter/news0312.htm#41928.6009606481
James Newton[JMN-EFP-786] Says

<H3>Single-track Grey code</H3>

Another interesting system is Single Track Grey Code, which combines vernier measurement with position encoding. As the name implies, there is only one track but the mask is broken up between light and dark around the ring, and the sensors are arranged around the shaft at different positions on that single track.
<BR><IMG SRC="http://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/Encoder_Disc_%283-Bit%29.svg/220px-Encoder_Disc_%283-Bit%29.svg.png" ALIGN="RIGHT" style="margin:10px">
<P>
Imagine a standard multi-track grey code encoder; all the sensors at one angular position:
<P>Now rotate the inner track 45' CW so that it lines up with the middle track. Obviously, you need to rotate the track sensor so that it still returns the same data. But now, since the inner and middle tracks exactly match, and the sensors for those tracks aren't at the same angle anymore, you can simply eliminate one track and move the sensors onto the one remaining track. 
<P>If you can continue to do this, you can have a single track and all sensors at the same distance from the center of the shaft. Unfortunately, you will notice that the outer track is not the same. To move beyond a 2 sensor, 4 positions per rotation, one needs to find a pattern for the track so that only one sensor changes at each rotational position. This was long considered impossible, but in 1994 N. B. Spedding published <a href="http://www.winzurf.co.nz/Single_Track_Grey_Code_Patent/Single_track_Grey_code_encoder_patent.pdf">NZ Patent 264738</a> (<a href="/images/Single_Track_Grey_Code_Patent/Single_track_Grey_code_encoder_patent.pdf">Cache 20141016</a>) with several examples which do work. 
<P>It turns out that  n sensors can distinguish 2<sup>n</sup>−2n positions. So 4 sensors can encode 8 positions, 5 encodes 30 positions, and 8 sensors can encode 240 positions.
Hiltgen and Paterson published a paper in 2001 exhibiting a single-track gray code with exactly 360 angular positions, constructed using 9 sensors (actually, with a different track, one could encode 494 positions).
<P style="clear:right">


<P>See Also:
<UL>
   <LI><A HREF="http://en.wikipedia.org/wiki/Gray_code#Single-track_Gray_code">http://en.wikipedia.org/wiki/Gray_code#Single-track_Gray_code</A>
   <LI><a href="http://www.cs.technion.ac.il/~etzion/PUB/Gray2.pdf">http://www.cs.technion.ac.il/~etzion/PUB/Gray2.pdf</a>
   <LI><a href="http://www.hpl.hp.com/techreports/2000/HPL-2000-81.pdf">http://www.hpl.hp.com/techreports/2000/HPL-2000-81.pdf</a>
   <LI><a href="http://www.yoctopuce.com/EN/article/how-to-measure-wind-part-2">http://www.yoctopuce.com/EN/article/how-to-measure-wind-part-2</a> Brilliant animation of a 5 bit 30 position single track encoder.
<BR><img src="http://www.yoctopuce.com/pubarchive/2013-01/STGC_2.gif">
   <LI><a href="http://www.quirkfactory.com/robotics/single-encoder/">http://www.quirkfactory.com/robotics/single-encoder/</a> Claims a track for 7 sensors that can encode 124 positions (2^7-2*7=114, so the claim is suspect) (Cached track mask: <a href="/images/SingleTrackGreyCodeMask-7.png">png</a>, <a href="/images/SingleTrackGreyCodeMask-7.pdf">pdf</a>, <a href="/images/SingleTrackGreyCodeMask-7.ps">ps</a>. Sensor placement guide: <a href="/images/SingleTrackGreyCodeSensors-7.png">png</a>, <a href="/images/SingleTrackGreyCodeSensors-7.pdf">pdf</a>, <a href="/images/SingleTrackGreyCodeSensors-7.ps">ps</a>)
<BR><img src="/images/SingleTrackGreyCode-7.png" align="left"><P>Decoding program:<PRE>
DATA 1, 5, 13, 9, 73, 89, 121, 125, 61, 53, 55,
     39, 37, 101, 69, 71, 7, 3, 2, 10, 26, 18,
     19, 51, 115, 123, 122, 106, 110, 78, 74,
     75, 11, 15, 14, 6, 4, 20, 52, 36, 38, 102,
     103, 119, 117, 85, 93, 29, 21, 23, 22, 30,
     28, 12, 8, 40, 104, 72, 76, 77, 79, 111, 107,
     43, 59, 58, 42, 46, 44, 60, 56, 24, 16, 80, 81,
     17, 25, 27, 31, 95, 87, 86, 118, 116, 84, 92, 88,
     120, 112, 48, 32, 33, 35, 34, 50, 54, 62, 63, 47,
     45, 109, 105, 41, 57, 49, 113, 97, 96, 64, 66, 70,
     68, 100, 108, 124, 126, 94, 90, 91, 83, 82, 114,
     98, 99, 67, 65

  FOR index = 0 TO 125
    READ index,char
    IF char = sensor THEN
      DEBUG "position: ",DEC index,CR
      RETURN
    ENDIF
  NEXT


</PRE>
</UL>



ON 20141020@11:01:18 AM at page:
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http://techref.massmind.org/Techref/language/asp/vbs/vbscript/281.htm#41932.4592361111
James Newton[JMN-EFP-786] Says

err.Description provides a human readable error message.



ON 20141024@4:09:00 AM at page:
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faisal alhaddar[B8EHMKNYCDQ44] change

|Replace: '<META http-equiv="Bulletin-Text" content="B8EHMKNYCDQ44">' with: ''



ON 20141024@9:16:26 AM at page:
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James Newton[JMN-EFP-786] Questions:

<a href="http://books.google.com/books?id=XD9iAwAAQBAJ&lpg=PA474&ots=IZ9A_tI0OD&dq=Alain%20P.%20Hiltgen%20and%20Kenneth%20G.%20Paterson%2C&pg=PA316#v=snippet&q=single%20track%20gray%20code&f=false">Google Books</a>



ON 20141027@7:58:32 AM at page:
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ON 20141030@1:59:56 PM at page:
On a web page you were interested in at:
http://techref.massmind.org/Techref/new/letter/news0312.htm#41942.583287037
James Newton[JMN-EFP-786] Says

Mask for 240 position, 8 sensor, Single Track Grey Code. The sensors are placed 15 positions apart. 
<BR>000000000000011111100000110000000000001111111111111111111110000000
<BR>1111000000000011000000000011111111111111001111111110001111111111111
<BR>0000001111100111111111111000000000000000000000111111100001111111111
<BR>0011111111110000000000000011000000000111
<P>This was developed from "<a href="http://phdtree.org/pdf/37603615-single-track-gray-codes/ ">Single-Track Gray Codes</a>" by Alain P. Hiltgen, Kenneth G. Paterson, and Marco Brandestini (appendix) 




ON 20141030@5:05:47 PM at page:
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James Newton[JMN-EFP-786] published post 41932.3506828704

<A TITLE="P-86.162.115.34" NAME="41932.3506828704" HREF="mailto:nezona@yahoo.com">nezona@yahoo.com</A> refers to &quot;<A NAME="86.162.115.34" HREF="http://www.1st-oakleighcases.com " TARGET="_top">
http://www.1st-oakleighcases.com </A> 
Great resource! Can I chuck 1st Oakleigh into the ring. Great site for AV cases.&quot;