--- Log opened Mon Sep 26 00:00:30 2022
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05:50 < kanzure> greetings Parabolics 
05:51 < Parabolics> hi kanzure, you good?
05:51 < kanzure> i'm very good
05:51 < Parabolics> Glad to hear it :)
06:01 < kanzure> Parabolics: what brings you here?
06:05 < Parabolics> sorry was just grabbing a coffee there!
06:07 < Parabolics> I have an on-and-off interest with nootropics. Right now, though, I'm trying to slowly wean myself off of a pretty heavy caffeine addiction (I'm now in my mid-30's and have been consuming at least a few cups a day for a couple of decades)
06:07 < Parabolics> I think caffeine works really well for a lot of people, but it seems to exacerbate some of my issues
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07:56 < kanzure> no response from merkle
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08:51 < nmz787> kanzure: what did you ask merkle? 
08:55 < kanzure> nmz787: https://merkle.com/
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09:22 < kanzure> sgiath: welcome.
10:00 < nmz787> kanzure: the last few archive.org snaps of his page show his homepage URL changed to https://ralphmerkle.com/  (seems to have changed bewtween Jun 25 and Jul 9th)
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12:41 < docl> .t https://news.stanford.edu/news/2011/october/carbon-diamond-hard-101711.html
12:41 < saxo> Stanford-led team creates amorphous diamond, a super-hard form of carbon
12:42 < docl> .wik Glassy_carbon
12:42 < saxo> "Glass-like carbon, often called glassy carbon or vitreous carbon, is a non-graphitizing, or nongraphitizable, carbon which combines glassy and ceramic properties with those of graphite." - https://en.wikipedia.org/wiki/Glassy_carbon
12:47 < docl> so they pressurized micrometer scale glassy carbon spheres to 40GPa and it shifted to amorphous form without crystallizing
12:59 < docl> that might be bad news for my diamond deformation idea because if you deform a nanocrystal too much without heat it could tend to just settle in amorphous form instead of springing back. maybe if the shape of confinement apparatus goes between spherical and tetrahedral with enough pressure the crystallization could be reversibly triggered that way
13:20 < nmz787> https://platform.efabless.com/projects/public
13:20 < nmz787> a bunch of CTRL-F hits (and a few less, I think, search box hits) for ADC in there
13:21 < nmz787> this one looks like it's a second iteration too, and the guy did FEM modelling based on his GDS layout using the SkyWater PDK
13:21 < nmz787> https://platform.efabless.com/projects/1346
13:21 < nmz787> https://github.com/chrische-xx/mpw7
13:22 < nmz787> "Many detailed improvement to the previous mpw6 submission.
13:22 < nmz787> "
13:23 < nmz787> 10MHz clock freq, not sure about the sample rate though (maybe SAR topologies have a typical ratio vs the clk, in terms of # of bits resolution, etc?) 
13:24 < nmz787> "klayout with gds3xtrude to get a stl mesh of the layout. freecad to convert mesh to step and encapsulate layout in boundary. gmsh to create a .msh 3D mesh from the step file. ElmerMesh to convert the .msh file to Elmer compatible mesh. ElmerGUI to define boundary conditions for the problem. ElmerSolver to solve for the electric field, capacitance etc. Paraview to verify the solution."
13:28 < nmz787> seems like possibly the same person... can't find the thesis, or any contact info for them though https://www.ele.elektro.dtu.dk/calendar/2019/07/2019-07-02_msc_chrw?showcalendaradd=true
13:30 < nmz787> well, I suppose you could file an issue on their github repos :P
13:30 < docl> Christoph Weiser is the name of the presenter and the guy's name in github so probably
13:31 < docl> https://github.com/chrische-xx
13:32 < nmz787> yeah
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14:22 < muurkha> docl: glassy carbon is already amorphous; that's why it's called "glassy carbon".  so it doesn't make sense to talk about it "shifting to amorphous form"
14:23 < muurkha> nmz787: exciting development
14:38 < docl> muurkha: sorry, meant to say diamond form
14:38 < docl> or rather, amorphous diamond form
14:40 < docl> .yt C5E91rsiKU0
14:40 < docl> .yt https://www.youtube.com/watch?v=C5E91rsiKU0
14:40 < Muaddib> [C5E91rsiKU0] Machine Learning and Thermodynamics - SciML webinar - Alex Alemi (96:41)
14:41 < docl> kind of a cool talk connecting machine learning to entropy (because of course)
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14:48 < muurkha> yeah, that makes more sense, though I'm curious what the difference is
14:50 < docl> yeah... do the potential bonds convert into viscosity somehow?
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15:39 < docl> I think this is it (although I could be wrong): usually, bonds form one after another based on whatever atom gets there with low enough energy to stay there. so the later ones that reach it get pushed into an orbital shape with a specific angle like an sp3 hybridized tetrahedron that makes diamond's molecular lattice. but if you instead have 4 randomly oriented carbons trying to lock on to some 
15:39 < docl> plausible sp3 orbital at once, they all do find one, but they aren't spread evenly in terms of angle. so the angular force part can't be distributed/resolved (as they all have the same probability), just the proximity to nucleus part. with proximity locked tightly, you get the hardness without order. and doing lots of atoms at once means the bonds are further inhibited from resolving to a specific 
15:39 < docl> angle by the proximity forces from all the other atoms
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16:27 < docl> so bonds in glassy carbon are a lot more like graphite -- sp2, but with warping so it isn't planar or exactly 120deg. a bit like fullerines and CNTs but with more randomness. with amorphous diamond, it would also be essentially sp3 but warped (there will still be low energy points in terms of angle for most of them, but you can't get them to move into those spots without an opposing force from a 
16:27 < docl> different warped sp3 bond so they can't rotate). per wikipedia there's also "amorphous carbon" which is a mix of sp2 and sp3 with dangling bonds like diamond (I expect amorphous diamond does as well)
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17:39 < kanzure> "... In this webinar, our Solution Architect, Cathal Garvey, will talk about these advancements and how they are helping our customers from a range of different"
17:53 < docl> .t https://www.nature.com/articles/s41467-017-00395-w/
17:53 < saxo> Synthesis of quenchable amorphous diamond | Nature Communications
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18:19 < kanzure> https://xueshu.baidu.com/
18:24 < muurkha> interesting
18:28 < kanzure> https://xueshu.baidu.com/u/paperhelp
18:30 < kanzure> an overview of how it works: https://dongkepu.com/itkeji/gejw5l.html
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--- Log closed Tue Sep 27 00:00:31 2022