Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Tuerdi Maimaitiyili
Seems like that figure is out of content! In phase transformation and a high time resolution studies you will come across something like that. On Sat, May 9, 2015 at 3:46 AM, Matthew Rowles wrote: > Hi Kurt > > Maybe the paper by Bridget Ingham would be of interest: Statistical measures > of spot

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Matthew Rowles
Hi Kurt Maybe the paper by Bridget Ingham would be of interest: Statistical measures of spotiness in diffraction rings. Just an idea. Matthew Hi all, In my defense, 10 of the 12 messages relating to this topic have had their footers attached. I will try to figure out how to get rid of it for n

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Darren Broom
I agree with Bill.Also, I haven't done any practical Rietveld refinement for years but, aside from the aforementioned snarkiness, still enjoy reading the discussions. In my current day job, I am also involved in supplying (admittedly a very small amount of) equipment to neutron and synchrotron

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Jon Wright
Dear Kurt, You can peaksearch the images with any number of packages and then look at the extracted spot positions. The stuff we wrote lives at http://sourceforge.net/projects/fable/ and it is normally used to fit grain-by-grain strain tensors. If you can isolate the spots you do indeed get a l

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Kurt Leinenweber
P.S. When the splitting arises from a phase transition, sometimes we see what we call "snowmen" or pairs of spots that are split between the two rings. I interpret these as twins arising from the phase transition. Has anyone seen these types of pairs of spots before? I think there is a lot o

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Kurt Leinenweber
Hi all, In my defense, 10 of the 12 messages relating to this topic have had their footers attached. I will try to figure out how to get rid of it for next time. Here is a topic I am interested in: we are collecting a lot of data on an imaging plate (GSECARS and HPCAT at Advanced Photon Source

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Robert Gould
I only get to read these mails as a humble operator of the IUCr website, but I really enjoy the discussions - please don't stop them! Robert Gould Tel.UK: +44 (0)131 667 7230 or +44 (0)796 040 3872 Canada: +1 519 387 8223 On 08/05/2015 17:06, Alan Hewat wrote: I apologize in advance for a

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Kirk Ross
hear hear! I second Larry's motion of practice what you preach :) Personally, I read and follow all posts and find this message board entertaining if nothing else. But to discuss the original topic of this thread, the diffractograms look like they were hand drawn. Not to contribute to the ridi

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread 최종락
Hi~, Although I am out of the track to do chemistry for now, I am still happy to be in the list to feel a chemist. And the patterns are same for me with just small bit of Zero shift. I am curious what they made out of it. CJ On Fri, May 8, 2015 at 11:45 AM, Leopoldo Suescun wrote: > Dear colle

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Larry Finger
On 05/08/2015 11:16 AM, Kurt Leinenweber wrote: Hi Alan, I still like the Rietveld list and do read all the posts. Is it possible to block attachments so that people can’t attach files any more? -Kurt Thus writes the guy whose mailer blindly attaches a message footer rather than in-lining a

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Enyuan Hu
As a to-be postdoc, I'm really grateful for the existence of this list and so many kind experts involved in the discussion. Simply put, my PhD thesis can not be finished without this list. I still read the posts. Thank you so much Alan for maintaining such a nice community. Enyuan On Fri, May 8,

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread GREGORKIEWITZ MICHAEL
what's going on, Alan? Are you getting older and disappointed through attachments and other misachievements of life? I really don't hope so, because, for me, I eagerly follow the rietveld list and I think that many more people actually does so! chears Miguel --- michele gregorkiewitz Dip Sc

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Arto Ojuva
I too enjoy reading the discussions that emerge every now and then in this group, and I hope to see more of them in the future. Speaking of that, could you change my e-mail to arto.oj...@gmail.com? My employment ended and with it, the mail account will be gone soon as well. Regards, Arto _

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Reese, Bill L
My personal observation only of course – I’ve seen that a lot of “entry level” questions are met with incredibly snarky comments which I find very off-putting. The participants on this site should welcome all questions – it’s an opportunity to teach, not ridicule. Bill Reese From: alan.he...

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Julian Richard Tolchard
I also agree that it serves a purpose, even though it is much quieter compared to when i first joined many years ago. I would not want to see it closed down, as there are questions coming up from time to time that would be very hard to get answered anywhere else. As Kurt suggests – why not just

RE: regress in crystallographic good practices and knowledge

2015-05-08 Thread Kurt Leinenweber
Hi Alan, I still like the Rietveld list and do read all the posts. Is it possible to block attachments so that people can’t attach files any more? - Kurt From: alan.he...@gmail.com [mailto:alan.he...@gmail.com] On Behalf Of Alan Hewat Sent: Friday, May 08, 2015 9:07 AM To: Leopoldo Su

Re: regress in crystallographic good practices and knowledge

2015-05-08 Thread Alan Hewat
> > I apologize in advance for attaching a file but I cannot share my > astonishment without it. > that´s why I worry more and more every day. > And I worry that people are still attaching files to the whole list when they are explicitly asked not too. Most papers are on-line now, so just give

regress in crystallographic good practices and knowledge

2015-05-08 Thread Leopoldo Suescun
Dear colleagues, I apologize in advance for attaching a file but I cannot share my astonishment without it. With so many advanced pieces of equipment for powder diffraction data collection spread all over the world and so many nice pieces of software written to handle (and interpret) powder diffra