Matthew Rowles

4.7K posts

Matthew Rowles

Matthew Rowles

@xray_matt

X-ray diffraction scientist. Technical specialist. @[email protected]

Perth, Western Australia Katılım Aralık 2009
557 Takip Edilen501 Takipçiler
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Matthew Rowles
Matthew Rowles@xray_matt·
New paper out! My program allows for the easy visualisation of powder #diffraction data in #pdCIF format. Now you can more easily share your data and refinements. There are also macros to help make pdCIF files when using TOPAS. scripts.iucr.org/cgi-bin/paper?…
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Robert Barton
Robert Barton@robertbarton110·
@Leo_Puglisi6 Isn't it simple. The Premier and his parliamentary party colleagues can no longer provide a majority of supply in the Tasmanian State Parliament. The Premier has resigned. The Governor should greenlight an election.
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Leo Puglisi
Leo Puglisi@Leo_Puglisi6·
Nothing ever happens
6 News Australia@6NewsAU

#BREAKING 🚨 Official secretary of Tasmanian governor Barbara Baker says she is "taking the time necessary to give due consideration to all available options" and will again meet with premier Jeremy Rockliff "by the end of the week"

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Boze Herrington, Library Owl 😴🧙‍♀️
Boze Herrington, Library Owl 😴🧙‍♀️@SketchesbyBoze·
we're living in a golden age of information - vast libraries, wikipedia, the internet archive - and it would be tragic if, instead of using your initiative and curiosity to study this marvelous world of ours, you ceded your thinking and learning abilities to a machine.
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Boze Herrington, Library Owl 😴🧙‍♀️
Boze Herrington, Library Owl 😴🧙‍♀️@SketchesbyBoze·
highly recommend not using ChatGPT at all, since the servers that power it use more electricity than major cities, it's been known to recommend eating glue and smoking multiple cigarettes a day, and you could simply use your wonderful brains to read and study things on your own.
h♀︎pe@dear_mortal

highly recommend asking ChatGPT for historical events that occurred on your birthday. things will click.

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Matthew Rowles
Matthew Rowles@xray_matt·
@khsacc This is the way. At one workshop I was at, a professor turned up to the pub at 11pm the night before his 10 am talk and proceeded to write his talk then. 😬
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hk❄️
hk❄️@khsacc·
学会発表24時間前、スライドはできてないどころかファイルも作ってない。そろそろやるか〜꒰๑•̥﹏•̥๑꒱
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Matthew Rowles
Matthew Rowles@xray_matt·
@SBattenResearch Just went back over the chemistry prizes since 2000. Over half of them (to my physicist brain) are biochem.
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v@iavins·
SQLite is cracked
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Matthew Rowles
Matthew Rowles@xray_matt·
@goldclusters @Robert_Palgrave Generally speaking, ~1 wt% is a good threshold, but depending on the system and data quality, you can go lower; I've quantified 0.05 wt% quartz in corundum. You need to model it and collect good quality data.
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Superatom.bsky.social 💉💉💉 💉
Superatom.bsky.social 💉💉💉 💉@goldclusters·
@Robert_Palgrave @xray_matt The fact that many researchers jump to "the Au loading is too small (<3 wt%), let's conclude as undetectable peaks in the XRD patterns." Is this conclusion/claim acceptable or just dodgy? Here are other 2 examples. With single-atom catalysts, many try to restrict <1 wt%.
Superatom.bsky.social 💉💉💉 💉 tweet mediaSuperatom.bsky.social 💉💉💉 💉 tweet media
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Superatom.bsky.social 💉💉💉 💉
Superatom.bsky.social 💉💉💉 💉@goldclusters·
Hey XRD experts, Loaded Au NPs on metal oxides can't be detected by XRD when it's <3 wt% . Synchrotron XRD may detect ~2 wt%. Is it the same with doping and vacancies too? Anything <3 wt% doesn't give discernible signals for XRD? How did the author's claim doping in high-T SC?
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Matthew Rowles
Matthew Rowles@xray_matt·
@goldclusters This is dodgy analysis. You need to actually do pattern modelling to show that there are are actually the phases present that you claim are there. They're could be a shoulder on the 0.93 wt% peak at about 38.5, but that would require actual modelling.
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Keşfet

@robertbarton110 @Leo_Puglisi6 @crypticcracking @standupmaths @SketchesbyBoze @khsacc @SBattenResearch @evolutionarypsy