Go to OSU College of Forestry LWGate Home Page.From: Elisabeth Wheeler <xylem@ncsu.edu>
Subject: Re: [IAWA Forum] Numer of rays per mm2
Date: Fri, 5 Aug 2011 09:58:54 -0400
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--20cf307f313076204204a9c27f7e Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable It is more usual and traditional to measure rays per linear mm, but I have seen some papers that reported rays per mm2 -- with the option of reporting number of 1s rays and multiseriate rays separately or reporting the number for all ray widths. If you decide you are going to measure rays per unit area, rather than rays per linear mm, I suggest you use a procedure simila= r to that suggested in IAWA hardwood list for measuring vessels per mm2. "Of the vessels that are partially in the =EF=AC=81eld of view, only 50% are in= cluded in the count. " -- so decide in which half of the field of view you will count rays. In those papers that reported rays per mm2, I don't recollect if they specified how they did their counts. On Fri, Aug 5, 2011 at 7:00 AM, Khokon <khokonbd@gmail.com> wrote: > Hello there, > > Does the term number of rays per mm2 means the number of rays > (uniseriate + fusiform as for example) present in 1 mm x 1 mm area or > it would be the number of ray cells in 1 mm x 1 mm area? If it is the > number of rays (uniseriate + fusiform as for example) per square > millimeter, then what the counting would be for those rays present > half or more than half outside the measuring area? > > Sincerely > Sheikh Ali Ahmed > Former Postdoctoral Research Fellow > Kangwon National University > Republic of Korea > . > ...........IAWA Forum........... > Members can post a message by sending it to iawa@cof.orst.edu. > If it is rejected, most likely you are sending from a different e-mail > address than the one with which you subscribed. > If you hit "reply", your response will only go to the person who posted i= t. > To subscribe or unsubscribe, send an e-mail to majordomo@cof.orst.edu and > include in the body either "subscribe iawa" or "unsubscribe iawa". > For help, write owner-iawa@cof.orst.edu, or visit > http://www.cof.orst.edu/org/iawa > Archives can be retrieved from > http://www.cof.orst.edu/cgi-bin/lwgate/IAWA/archives > The IAWA website is http://www.iawa-website.org > ................................ > --=20 Department of Forest Biomaterials Box 8005, N.C. State University Raleigh, NC 27695-8005 USA 919-515-3181 http://insidewood.lib.ncsu.edu --20cf307f313076204204a9c27f7e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable It is more usual and traditional to measure rays per linear mm, but I have = seen some papers that reported rays per mm2 -- with the option of reporting= number of 1s rays =C2=A0and multiseriate rays separately or reporting the = number for all ray widths. =C2=A0If you decide you are going to measure ray= s per unit area, rather than rays per linear mm, I suggest you use a =C2=A0= procedure similar to that suggested in IAWA hardwood list for measuring ves= sels per mm2. =C2=A0"Of the vessels that are partially in the =EF=AC= =81eld of view, only 50% are included in the count. " -- so decide in = which half of the field of view you will count rays. In those papers that r= eported rays per mm2, I don't recollect if they specified how they did = their counts. =C2=A0<br> <br><div class=3D"gmail_quote">On Fri, Aug 5, 2011 at 7:00 AM, Khokon <span= dir=3D"ltr"><<a href=3D"mailto:khokonbd@gmail.com">khokonbd@gmail.com</= a>></span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0= 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> Hello there,<br> <br> Does the term number of rays per mm2 means the number of rays<br> (uniseriate + fusiform as for example) present in 1 mm x 1 mm area or<br> it would be the number of ray cells in 1 mm x 1 mm area? If it is the<br> number of rays (uniseriate + fusiform as for example) per square<br> millimeter, then what the counting would be for those rays present<br> half or more than half outside the measuring area?<br> <br> Sincerely<br> Sheikh Ali Ahmed<br> Former Postdoctoral Research Fellow<br> Kangwon National University<br> Republic of Korea<br> .<br> ...........IAWA Forum...........<br> Members can post a message by sending it to <a href=3D"mailto:iawa@cof.orst= .edu">iawa@cof.orst.edu</a>.<br> If it is rejected, most likely you are sending from a different e-mail<br> address than the one with which you subscribed.<br> If you hit "reply", your response will only go to the person who = posted it.<br> To subscribe or unsubscribe, send an e-mail to <a href=3D"mailto:majordomo@= cof.orst.edu">majordomo@cof.orst.edu</a> and<br> include in the body either "subscribe iawa" or "unsubscribe = iawa".<br> For help, write <a href=3D"mailto:owner-iawa@cof.orst.edu">owner-iawa@cof.o= rst.edu</a>, or visit<br> <a href=3D"http://www.cof.orst.edu/org/iawa" target=3D"_blank">http://www.c= of.orst.edu/org/iawa</a><br> Archives can be retrieved from<br> <a href=3D"http://www.cof.orst.edu/cgi-bin/lwgate/IAWA/archives" target=3D"= _blank">http://www.cof.orst.edu/cgi-bin/lwgate/IAWA/archives</a><br> The IAWA website is <a href=3D"http://www.iawa-website.org" target=3D"_blan= k">http://www.iawa-website.org</a><br> ................................<br> </blockquote></div><br><br clear=3D"all"><br>-- <br>Department of Forest Bi= omaterials<div>Box 8005, N.C. State University</div><div>Raleigh, NC 27695-= 8005 USA</div><div><br></div><div>919-515-3181</div><div><a href=3D"http://= insidewood.lib.ncsu.edu" target=3D"_blank">http://insidewood.lib.ncsu.edu</= a></div> <br> --20cf307f313076204204a9c27f7e-- . ...........IAWA Forum........... Members can post a message by sending it to iawa@cof.orst.edu. If it is rejected, most likely you are sending from a different e-mail address than the one with which you subscribed. If you hit "reply", your response will only go to the person who posted it. To subscribe or unsubscribe, send an e-mail to majordomo@cof.orst.edu and include in the body either "subscribe iawa" or "unsubscribe iawa". For help, write owner-iawa@cof.orst.edu, or visit http://www.cof.orst.edu/org/iawa Archives can be retrieved from http://www.cof.orst.edu/cgi-bin/lwgate/IAWA/archives The IAWA website is http://www.iawa-website.org ................................
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