/sci/ - Science & Math

>>6505914

Also, I hate organic electronics with a passion. Most fucking overhyped piece of shit technology. I spent a lot of time working on that stupid shit.

I did my dissertation on the growth of thin films of metal oxides. TFTs, diodes.

Got a few publications, not really high impact, though, due to lack of pretty pictures/wasn't state-of-the-art and didn't really compare to IGZO. Collaborations were nice.

Most of what I did was more yield/reproducibility since it was the beginning of the project, others have carried on project and are doing more with it.

Now I'm doing industrial research and I hate my life. Sometimes I just want to do something useful, even if it doesn't require any brainpower.

i'm the gayest man on earth

3 N2Cl4 + 3CH4 -> 6H2 + 3N2 + 3CCl4

>>6389197

Well, that's going to describe a lot of places. If you want somewhere really different, try U Chicago! Although I assume you're in the process of visiting schools for next year since you were very specific about where you're going.

>>6389197

You might regret this, a lot. You mean don't want to get a job as in the market is bad and you're hoping to see where it goes?

>>6389181

Good reputation, nice area. Though most places you'll be working most of the time, so choose PI > location.

>>6389131

Yeah, it is. At this level, PI is a LOT more important than school if you're going into academia from a PhD background. Nobody cares if you went to MIT if you worked for some geezer who is close to retiring and not doing cutting-edge research anymore.

For industry R&D with a PhD, it's all about having the right skillset/experience (i.e. exactly what they're looking for), although working for a very well-known PI can change that. It's a lot more lenient for yield-improvement type jobs.

At the BS level you'll probably have an advantage from those schools simply because of alumni connections.

>>6389020

Yeah, organic chemistry and homogeneous catalysis (i.e. palladium source + ligand + substrate combinatorial shit) will probably be the first. Couple of great papers in the past decade about using algorithms to solve syntheses from known commercially available materials. Plus it's one of the fields that treats graduate students most like slave labor. Total synthesis is just h-index-penis-swinging (oh look how well I can solve this arbitrary puzzle! I can make a few mgs of material and all it took was multiple years of graduate students slaving away, and it's not practical at all), and funding for it is a lot more difficult nowadays. Reaction development is a lot more practical, at least I would think.

>>6389014

Sounds like your chem classes are poorly structured. Organic and physical will be a breath of fresh air, hopefully.

>>6388932

By far... meh, I'd say it's equivalent to Harvard? The other Ivies are much weaker, (although I've heard Princeton and Yale have good math departments, but I don't know how true it is). But UC Berk and Stanford are probably in that calibur as well.

Hopefully, with the glut of graduate students, the research departments will even out as qualified PhDs who want to be in academia seek positions beyond the traditionally good schools.

>>6388376

Cornell does have some great graduate programs (like, top 10, or so), but comparing it to MIT/CalTech is kind of meh, as those schools are consistently in the top five for most STEM programs (graduate and undergraduate).

>>6388329

Srsly, Berkeley is a damn fine school.

>>6387687
Wish I knew what type, maybe we'd have some colleagues in common.

>>6387498

And yes, it makes sense that increased electron density in the ring would increase ring current -> deshield all of them.

However, inductive/resonance effects would win out. Thus, ortho and para to nitro have highest ppms.

>>6387498

And yes, I agree (at least, vaguely remember) de-shielding occurs as the result of ring current in aromatic systems.

The only thing we disagree on is the effect of electron density upon deshielding. I say that electron withdrawing groups show greater de-shielding. SDBS assignments of molecules like 4-nitro-o-xylene will confirm what I have said.

>>6387485

Yeah, you're right, it was kind of a dumb comment. There is a lot of overlap, and there are a lot of people with dual appointments in engineering/chemistry. Some of the best materials scientists are technically in chemistry. I should know, I was technically in the chemistry department.

>>6387498

Deshielding is more than aromatic systems. Deshielding simply means lower electron density, which means a higher ppm. Google "deshielding aldehyde."

Like I said, greater deshielding -> higher ppm occurs with lower electron density.

>>6387471

You're just looking at the ppm, and I'd agree with you if that were all to consider, but you are completely neglecting the multiplicity. F should be ortho to isopropyl and nitro.

Yes, electron density is lowest at carbons that are ortho and para to nitro. Low e- density = higher ppm. So ortho and para to the nitro should be highest ppm, i.e. these are D, E, and F. Meta is least deshielded, has highest e- density of all the aromatic protons, so meta should be at lowest ppm, i.e. C.

>>6387474

Hrm, I know there's nomenclature for the aromatic ones, can't remember what it is, though. Oh well.

>>6387453

Meh, you'll probably have more exposure to XRD if you're doing materials science or even EE (MBE, CVD). I guess if you're doing ceramics, though.

Actually, at most of the top schools, a third or more of the PhDs will go into consulting/finance. That's how shitty things are.

>>6387466

If you want good job prospects from the life sciences *with* a graduate degree, you're fucking stupid.

Actually, maybe not, Dupont is looking for more geneticists and shipping polymer division to China due as the former can generate more IP.

Definitely aliens. Aliens, and Jews. Maybe Jews are descended from aliens.

I mean, for some applications.

Solar water heaters, solar ovens, gas heaters. These use means other than electricity to generate heat. I assume solar water heaters is more in line with what you're thinking of, i.e. non-fossil fuel-based, alternative energy. Windmills/watermills (to run machines directly instead of generating electricity).

>>6387150

Yeah, which is exactly what I wrote here, although I can't remember if I used geminal/vicinal correctly:

>>6386798
here.

And it's probably meta because one of the aromatic protons doesn't show the correct coupling -> one of the aromatic protons has no adjacent protons aromatic protons.

Only problem though even though nitro is deactivating, a chemical shift of 5 for a benzyl is way too high. For 4-nitrocumene, it's only at 3... 4 seems more legit, 5 just seems way too high, that's just gut instinct, though

>>6387171

You're going more on the chemical shift, and not looking at the multiplicity, though.

F is most likely right because no strong coupling -> no adjacent protons.

C is probably right because meta to nitro should have lowest ppm.

D and E might be switched, not sure.

Whatever, it's been years since I've run NMR.

>>6386361

Field is integral of charge density. For plates, you consider charge density a delta function in the plates, and charge density of zero between the plates.

Electric field between the plates then is integral of charge density, which evaluates to Q/(A*epsilon).

Voltage is integral of electric field over distance. Since the electric field is a constant, V = E * d (separation) = Q/(A*epsilon)

The thing you seem to be forgetting is that there is a voltage on the cap if it has any charge on it. The voltage will be the integral of the electric field over distance. The electric field is going to depend on the charge density and the dielectric constant of the material.

If they're connected by a wire, they'd just discharge (which is what I assume you're describing) until the charge is zero.

Well, patent law is great; typically for best results get your PhD at a good school and you'll get paid to go to law school while working for the law firm.

So basically, you get your PhD + stipend, and you get a good salary + free law degree. Much better than paying for law school and becoming part of the glut of lawyers. Then again, same thing with overproduction of PhDs, and job market can shift drastically in the five or more years you're in school.

Also, you have to put up with the hell that is graduate school. Could be great, but could be the worst time of your life.

Of course, chances are you'll be trying to screw smaller companies out of their patents/trying to get them to settle for the benefit of larger companies...

>>6383057

Yeah, this is why semiconductor companies don't look so hot after you figure you'll be doing > 60 hours if you're in hardware.

Also, very few companies have ~40 hour workweeks at that level (with reduced pay accordingly). I guess they assume everyone wants more hours and more pay...