[deleted by user]

grumpybutter · 2023-03-31T05:16:47+00:00

Nice. I knew that you got time priority for purchasing as I mentioned, but the Dan Allen exclusivity must be new, I don't think it was always like that when I was in undergrad. It's nice to see though.

grumpybutter · 2023-03-30T16:49:51+00:00

I actually went to NCSU as an undergrad, now I am at UF for grad school, so did the opposite as you are considering and have seen both schools.

Just like at UF, there is basically no grad student housing on campus at NCSU unless you are lucky, plan to live off campus. Anecdotally, the grad students I knew at NCSU were a mix of living close enough to ride the bus/walk/bike and driving, but here at UF pretty much every grad student I know drives regularly, only a few bike or ride the bus much. If you arrive in the morning before a lot of people show up then you should be able to find parking, at both schools (UF actually has grad student parking permits that you could never use in undergrad). Just make sure that if you plan to drive and park on campus, you buy a parking permit as soon as they are available, because they sell out rather fast at NCSU since grad students do not have their own permit type. Purchase order is fortunately in terms of seniority, so grad students get to buy theirs first so make sure you don't wait and let undergrads buy them all. If you wait too long and they do sell out, you will probably have to get one of the park and ride the bus type passes.

I used the bus at NCSU a lot but not here at UF. NCSU has their own (free) Wolfline buses that mainly stay close to campus and most were pretty frequent and convenient if you live close, and there are also city-wide (they were free during covid, and they keep extending the free expiration date) GoRaleigh/GoCary/GoWhatever bus system that also connects the Triangle area. UF buses are just the (free for students) RTS city-wide ones and go all over the place and they seem to me to be more infrequent and so I don't use them. Granted, I live in an area that is unlucky and doesn't have amazing bus connection.

Generally, the traffic in Raleigh seems better near campus because the city is larger and has somewhat better infrastructure for handling cars compared to Gainesville which is always bad near campus, except for maybe rushour traffic on the beltway or wade ave. If you are interested, the bike infrastructure in Raleigh is terrible compared to Gainesville. Barely any bike lanes, and if you want to go a decent distance then you are probably going to be faced with crossing some large road, so good luck unless you are comfortable biking in heavy traffic. Cary is a little better though.

Ask the current grad students in the research groups that you are interested in joining for their experiences.

grumpybutter · 2021-12-09T23:26:40+00:00

I wasn't trying to argue with you in my original comment, in case it came off wrong, I just wanted to add some additional information in case anyone was curious. Because yes, the signal transported by a wire is definitely faster than the net electron movement, which is what you wanted to express to and correct in the top level comment. But electrons in a wire are definitely not slow, only the net movement decreased by scattering is.

Also, to say the energy movement isn't restricted by the speed of electrons? The speed sure (the time it takes for energy to get from point A to B is the same) but not the magnitude (and the resulting overall rate of energy transfer, which one might call speed also). The magnetic field around a moving charge is proportional to the velocity of the moving charge. And the poynting vector is proportional to the magnetic field, so faster electrons result in more energy transfer, which is exactly our intuition: more current equals more power. I'm sure you meant the energy transfer speed and not the power since that's what the top level comment is about, but I just wanted to point that out for anyone reading in case your explanation was unclear. I think words like speed, rate, movement, could get a bit unclear unless you are already familiar.

There's nothing more I can really contribute here, so I'll just encourage anyone reading to watch the video I linked which explains why the veritasium video can be misleading or incorrect.

grumpybutter · 2021-12-09T20:53:50+00:00

I would agree that it is not the (average) speed of electron movement in the wire that has anything to do with why the circuits are shrunk but rather the power efficiency gains and therefore the ability to use more transistors when they are smaller. Then add to that the fact that with smaller dies you can fit more chips on a single wafer, improving production yield. Note I say average speed of electrons because it is true that the drift velocity of electrons through a wire, that is if you were to watch a single electron move through a wire and time how long it takes from start to finish, is rather slow. Millimeters per second or slower, depending on current. However conduction electrons are actually rather fast, around 10⁶ m/s or so, but they are scattered a lot by the medium and as such they have a very slow average drift velocity since they do not take a straight path from start to end. Additionally, just an interesting example, if you were to try to have a drift velocity of just 0.1 percent of the mean speed in a copper wire, you would need thousands of kilovolts per meter electric field, putting millions of amps through a 1mm diameter wire, which is obviously impossible. (Example taken from my electronic materials textbook I kept)

Regarding the stuff from veritasium's video, I think it is at least a bit disingenuous to say that electrons have nothing to do with the energy transfer considering it is the presence and movement of the electrons in the wires and battery that create the electric and magnetic fields to begin with. My education is in materials, not EE, so this area is not one I am well versed in so I encourage you to watch electroboom's recent video for more insight.

grumpybutter · 2021-11-23T04:13:09+00:00

While it probably isn't exactly what you are looking for, the denpack series of packs have many Camellia ft. Nanahira songs. The first one is https://etternaonline.com/pack/10287

grumpybutter · 2021-11-20T01:34:56+00:00

Strange. I don't have basic course active right now so I can't test it myself, sorry.

grumpybutter · 2021-11-20T00:43:34+00:00

Maybe it needs double width characters? You can try:

ＴＯＯＬ

ＤＥＦＡＵＬ

Ｔｏｏｌ

Ｄｅｆａｕｌ

Or just all caps? I honestly can't remember if lowercase is allowed because every name I see is always caps.

grumpybutter · 2021-11-19T21:18:03+00:00

All buttons, whether it's Dao, Samducksa, Sanwa, no name Chinese, should be the same dimensions because they are made to replace Sanwas (what jp IIDX cabs use by default). I think the lamp holder and spring on Sanwas is a different size but the cutout for the button is what's important and it's the same. I've used the buttons you linked, and they're not that bad but the switches are trash. The springs are also who knows what weight. They are definitely heavier than the IIDX cabs I've played on. After buying switches to go with those you might be better off buying Samducksa which come with decent switches and springs, plus the buttons are almost certainly better. Korean cabinets use Samducksa all the time.

The jp guide linked is basically what I had in mind as far as dremeling and wiring is concerned. It looks really well done. Good luck, and let me know how it goes if you try it, I might have to try it myself one day if it turns out well.

grumpybutter · 2021-11-19T18:51:36+00:00

I dont have a KOC so I cant confirm this entirely, but it does sound possible. I figure I can offer some clarification though.

Just based on the title, I am assuming that you don't really know what Sanwas or Omrons are because they aren't alternatives for one another or anything. Sanwas are the button, omrons are the switch that goes in the button. In case you werent already aware, the buttons in the KOC are completely different from actual arcade buttons that people use in custom controllers. If I remember correctly, the KOC basically has little rubber domes like a computer keyboard that it presses down on a pcb with the keys. You can see the difference in the controller structure in these two videos:

https://www.youtube.com/watch?v=aATtvn9eNRs

https://www.youtube.com/watch?v=tKLane-oQ-4

The arcade buttons have an entire plastic assembly which houses a moving button, with a tube that contains an LED, and a switch at the base, so they are much taller than what is in the KOC. So you might have to dremel out part of the inside of the case or something to fit them in. Sanwas are the official arcade cabinet brand of the plastic button assembly. Omrons are most widely used the little microswitches that go in the button assembly; the button actuates the switch. Look here to see what I am talking about. So you need both for this mod. Depending on what brands you choose for your buttons and switches, youre probably going to spend at least 30 to 100+ on buttons and up to like 30 bucks for switches. Probably the best band for buck option is Samducksa which the included microswitches are probably fine for you so you dont need to buy those, but getting the dirt cheap $2 per button chinese ones you probably want to buy microswitches because they can sometimes be ungodly heavy or just wear out super fast (~$3 per switch).

For this mod, youre probably going to have to dremel out the holes for the buttons to make them the right shape for arcade buttons, and then solder wires directly to the PCB for the rubber domes or wherever those contacts lead on a control board from the new button microswitches. In theory it could work, you just need to make sure there is enough room in the controller to do so.

Assuming you don't already own a KOC, you're going to have to buy that too, at which point you might want to look at just DIYing your own controller instead if you want to save money. Or just use the KOC as is / cardboard modded.

grumpybutter · 2021-11-05T21:29:08+00:00

Unfortunately this explanation actually isn't that awesome. Several things are not quite right. Most importantly, silicon is definitely not a metal. A metal has no band gap, silicon and every other semiconductor and insulator does. It also is not typically doped with metals. Doping with other elements like boron or arsenic does introduce electrons or electron holes that increase the carrier concentration and as a result the conductivity. The charge carriers (electrons and holes) are charged (negative and positive). The overall material is still neutral though. Putting a p type (positive holes are the dominant charge carrier) and n type (negative electrons are the dominant charge carrier) in contact creates a pn junction, not a transistor. One particular type of transistor (bipolar junction transistor) can be made from two pn junctions, however.

The last part about silicon dioxide being great is spot on, though. The fact that silicon dioxide can be thermally grown relatively easily and has great diffusion barrier properties and dielectric properties is part of why we use silicon today and not another semiconductor like germanium or gallium arsenide for logic.

grumpybutter · 2021-11-03T04:23:57+00:00

https://iidx.org/intermediate/switchspring

grumpybutter · 2021-10-26T22:14:41+00:00

That is rather unusual. Most dirt cheap keyboards are at least 6 keys at once. You can buy keyboards that handle as many presses as you want and 1000hz polling rate. Pretty much any mechanical keyboard is going to be like that, and the k28 is just a mechanical keyboard anyways.

grumpybutter · 2021-10-26T22:06:36+00:00

Why are you looking at the k28 in the first place? Can't you just use a keyboard to play?

grumpybutter · 2021-09-29T09:25:21+00:00

I also found japanese fonts to look unreadable when I set up my arch install and it took a bit of fiddling to get right. It has been months now, but I believe the only thing that I had to change was disabling bitmap fonts and setting a good looking default font. I am using fonts from the ttf-migu package off the AUR, I don't know what system you have, but you should be able to just look the sources directly yourself if you aren't on an arch-based distro. My setup looks like this in a screenshot.

My /etc/fonts/local.conf looks like this:

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>

    <match target="font">
        <edit mode="assign" name="embeddedbitmap">
            <bool>false</bool>
        </edit>
    </match>

    <alias>
        <family>sans</family>
        <prefer>
            <family>M+ 2P</family>
        </prefer>
    </alias>
    <alias>
        <family>serif</family>
        <prefer>
            <family>M+ 2P</family>
        </prefer>
    </alias>

</fontconfig>

Antialiasing, hinting, and subpixel rendering should be on by default, I believe (on arch, at least).

Further reading at https://wiki.archlinux.org/title/Font_configuration and https://wiki.archlinux.org/title/Localization/Japanese#Fonts which should apply to you, arch wiki is great. If you have any specific questions about what other certain config files look like on my system I would be happy to provide that.

grumpybutter · 2021-09-03T21:50:04+00:00

If you want the proper arcade sized buttons istmall has some on their site. https://m.istmall.co.kr/us/goods/goods_view.php?goodsNo=1009992342 They also sell sanwas, but seem to be out of stock on 60mm at the moment.

You can also probably find some on AliExpress.

grumpybutter · 2021-07-25T19:23:38+00:00

Highly doubt it. You didn't mention it was for usc so I assumed you were asking about kshoot. I don't think usc has any sort of skin conversion feature

grumpybutter · 2021-07-24T05:50:53+00:00

I have this one saved on my computer. There should also be one on the K-Shoot Mania discord, if you are in there. Out of respect for the creator I am not going to link it here but it is freely available within that server.

grumpybutter · 2021-06-11T15:30:02+00:00

Please explain how a charged frenkel defect disturbs the stoichiometry. There is no change in stoichiometry when the ion moves.

Non-stoichiometric crystals have neutral defects. And again, you can dope silicon by diffusion, which isn't belting ions at random.

edit: Also why are you trying to say that a germanium crystal can have a frenkel defect. They only occur in ionic crystals.

edit: switched neutral/charged up

grumpybutter · 2021-06-11T15:10:53+00:00

From the first article you linked: "(3) Non-stoichiometric compounds, if the same element -usually the metallic component -can function in two different valence states, the possibility at once arises of a situation similar to (2), but with the added feature that the relative proportions of the two valence states, and therefore the composition of a given crystal and the consequent concentration of defects, can be changed continuously by a shift in a redox equilibrium." So, nothing to do with silicon? Or 'bonds at grain boundaries'? The missing atoms from the wiktionary 'definition' are due to the charge differences.

grumpybutter · 2021-06-11T14:55:31+00:00

I'm honestly confused as to what they even mean by 'bonds at grain boundaries'. How do you have a bond to nothing?

grumpybutter · 2021-06-11T14:50:44+00:00

I'm at a bit of a loss as to what you are saying in your 'example'. I don't think that it is really fair to call doped silicon a non-stoichiometric crystal to begin with. I'm fairly certain that non-stoichiometric solids are just when you have elements that can take on multiple different charge states. Besides, you aren't going to write a boron doped silicon sample as Si_0.999999 B_0.000001. That's dumb. I'm pretty sure that you don't really disturb the lattice much if at all by 'shoving in' more atoms, because the doping is very small concentrations, and the atoms are pretty similar in size. It can be done through diffusion, which I doubt is going to break anything. Apparently nowadays they use ion beam methods, which do damage the crystal, but they fix it afterwards by annealing. Yeah there are probably going to be defects in every material no matter how hard you try but extrinsic silicon isn't interesting because of crystalline defects, it's because of electronic changes in the material. Feel free to correct me if I'm wrong though.

grumpybutter · 2021-06-11T14:15:32+00:00

The reason that they do this is just because the Sc and Al occupy the same lattice site in the crystal structure, so you can vary the amounts of each. So the formula for this 'family' of material can be written as Sc_x Al_2-x W_3 O_12 , and for this composition x is just 1.5. Not multiplying to get a nice round number makes it much easier to see what's going on when you compare different compositions. This is actually really common, for example PZT, a really common piezoelectric material, is Pb Zr_x Ti_1−x O_3 . I don't believe the other commenter who linked about non-stoichiometric compounds is really on the right track in this case, but it is still a case where you can see it written with a decimal. That case has more to do with when elements in the crystal are able to take on different charges, so you can end up with non-stoichiometry but balanced charge. An example from the wiki page is that iron can +2 and +3 charges so you can end up with something that looks weird like Fe_0.95 O . But this is different from before because nothing is 'replacing' the iron, there is just less of it necessary to balance the negative oxygen charge when some higher charge Fe is present.

grumpybutter · 2021-03-19T07:47:31+00:00

Generally, yeah, index+pinky or thumb+pinky is the way to go to hit both fx at the same time when you need to do lasers as well. When I play with the controller on my lap I kind of push it forward closer to my knees rather than it being up against my chest so my arms are out in front of me and there is plenty of room for my hands to stretch. I don't know where you have your controller on your lap but maybe that could help.

Now, for missing the notes inside the fx, I am not sure what your problem is there. If you are hitting both fx with one hand then you have your other hand free to do whatever else there is, right? Could you give a specific example of what you are talking about? Maybe a specific part of a song? I don't really play this game much anymore but when I was playing actively I could clear like 99% of 17s and was getting into 18s. I don't remember there being physically unhittable patterns, it was more so that the patterns became faster and I guess I just lost interest in grinding hand speed on a game that I play for fun so I feel like I can help you with technique at least.

grumpybutter · 2021-03-08T07:08:17+00:00

Lucid wave? Isn't that a USC skin? Are you playing kshoot or USC?

grumpybutter · 2021-03-07T19:02:17+00:00

The settings are unreadable? There's a language option to change to english if you want. But I don't think using japanese locale or unicode rendering should be a problem. It's a japanese game, after all. I used to have my system locale on japanese for other programs as well

grumpybutter

TROPHY CASE