(Part 3) Top products from r/Eugene

Jump to the top 20

We found 25 product mentions on r/Eugene. We ranked the 112 resulting products by number of redditors who mentioned them. Here are the products ranked 41-60. You can also go back to the previous section.

Next page

Top comments that mention products on r/Eugene:

u/halfshellheroes · 5 pointsr/Eugene

I think more than just an issue with simplicity or difficulty this is a matter or feasibility. A grad student could easily get their dissertation doing this project for just one molecule. However if you're serious about this let me give you some advice.

  • When I say decomposition pathway, I mean physically what are the molecules in your battery doing in order to produce a current or energy? This will require a large understanding of electrochem and physics as well as an exceedingly up to date understanding of material sciences in the physical chemistry field. I recommend start by reading publications on current "next gen batteries" and see where that takes you. If you go to the UO science library you can use their computers to go through the literature. I'd recommend reading Journal of Chemical Physics, Physical Chemistry Chemical Physics, American Chemical Society, American Physical Society, and/or Physical Review Letters

  • Drop this notion of a permutation set, or at least limit it to a molecule class (with specific allowed elements or lengths). Unless you set up exceedingly smart parameters all you will get is 99% of your data being for molecules that absolutely can't be used for batteries. For starters, do you want to find organic compounds that combust like gasoline as a source for fuel? I think you more likely want something like a Lithium ion cell which would require you to look at transition metals. Be less concerned about being able to make a set of 10^50 molecules and instead focus on how (from a general molecule motif) would you generate energy in current form. How much energy do you get from a redox reaction of Li in acid versus a complex of (Li)_n. An added complexity is that the order in which you arrange them will also change the bonding. This isn't just, will it make a linear chain or will it fork, or will it be circular; this is going to involve analyzing how the electrons interact on an orbital level. This work is basically probing the question of how catalyst work (an answer to which would undoubtedly get you a Nobel prize).

  • Being that you will most likely need to do some type of oxidation reduction reaction (you'll see a lot of excitonic processes currently being used for energy) to generate free electrons this guarantees that you will need to do ab initio quantum calculations. In order to do that you have to basically derive the energy of losing however many electrons in a specific manner in a vacuum at 0 K. HF will NOT cut it. You will need to use several high leveled theory basis sets and compare the results. This means you will not only need to understand mathematically how these calculations are done, but also understand quantum mechanically how best to represent poorly defined things such as single charge states, ionization, and far more complicated advanced topics.

  • Look into Density Functional Theory (DFT). For reactions that mix between classical and quantum (semi-empirical) it's the current standard way to go. That being said, this is not a technique that can be generalized to any molecule. Every simulation is exceedingly specific to every case.

  • You will need computers. Lots of computers. Either you build your own super computer and drain your bank account funding the electricity (you will need to be a billionaire to do this) or you do what any sane theoretical chemist would do and apply for grants to some of the XSEDE super computers. Keep in mind the grant cycle just ended so you'll have to wait until next year to even begin applying and you'll need to convince way tougher scientists than me. If you're planning on doing semi-empirical and especially if you plan to do any ab initio calculations you will need a lot of computational resources. Try playing around with Gaussian (g09) available for free on most linux machines to get an idea of how long these calculations take and how much more processing power and memory you'll need.

    Here are some books and resources that will catch you up McQuarrie, Cramer, Marcus Theory, and all things Mukamel for electron transfer.

    Good luck!

    [EDIT]: As far as temperature goes, that's a concern more so for the effects on a classical level, so you need a MD or semi-empirical system with a good forcefield defined.
u/ObiWanBaloney · 3 pointsr/Eugene

The box fan trick works great but it's important to note that only the expensive filters will remove smoke. The cheap filters won't do much of anything. There's three different rating systems depending on brand and it's hard to compare them with each other since they mean different things. In general though, look for a minimum of FPR 7, MPR 1000, or MERV 11. The higher the number the better.

Ionizers are a great way to remove smoke too, but you have to make sure you get one that doesn't produce ozone since that's pretty toxic. Industrial ionizers should be avoided.

I have two of these and they work great.
https://www.amazon.com/Envion-Ionic-Pro-Turbo-Purifier/dp/B000H0RZB0

This is the compact version:
https://www.amazon.com/Envion-Ionic-Pro-Compact-Purifier/dp/B000HEB99A

This one is very small and has good ratings.
https://www.amazon.com/IonPacific-ionbox-Negative-Generator-Highest/dp/B01F2P6LV4

And one for your car that runs off the lighter socket. There's a bunch that look like this but the FRiEQ brand has the best reviews from what I've seen.
Note: It will only help if you keep your windows up and don't have "fresh" air coming in through the air system. It'll have to be set to recirculate for this to do any good.
https://www.amazon.com/gp/product/B012CDEMFG/

u/chadcf · 10 pointsr/Eugene

Rosary Lakes or Maiden Lake is a great trip without too much difficult elevation (unless you want it in which case you can go up Maiden Peak too). I also like the trail out to Eddeeleeo lake which is more private trip, usually don't run into other people out there. There's a TON of places around though depending on what you're looking for. Green lakes by south sister is also a great trip. So many good trips! This book has some good suggestions as well.

u/StevelKanevel · 3 pointsr/Eugene

Yeah, the snow camping around here is great. I'd suggest picking up a copy of 100 Hikes in Oregon as a start. Once you hit August I recommend pretty much anywhere in the Three Sisters Wilderness for backpacking.

u/[deleted] · -1 pointsr/Eugene

I prefer to interact with people who believe they have a duty to be kind to themselves and others. You should get help for your unhealthy desire to one-up others. This might help https://www.amazon.com/Myth-Self-esteem-Rational-Behavior-Psychology/dp/1591023548

I'm blocking further interactions with you. Not because you're a bad person, but because your behavior is unkind and rude. I'm sure you'll improve it in the future. Good luck!

u/uojob · 2 pointsr/Eugene

We got America test kitchen recommended chef knife. Link https://www.amazon.com/dp/B000638D32/ref=cm_sw_em_r_mt_dp_U_kQmTDbYAD8NFB. Works great.

u/SuckItWhoville · 7 pointsr/Eugene

Pick up a copy of this for next time: https://www.amazon.com/Eugene-Oregon-Walks-Tyler-Burgess/dp/098165990X

You won't have to search very hard to find a copy. Heck, it's even sold at the True Value on Willamette.

u/ZikaPositive · -2 pointsr/Eugene

Wow, you're still going? You know you can date people without fucking them right? Also, men can be friends with women.

And now you're implying that I'm transphobic? Damn, okay that's not cool.

>Think of it less as unsolicited advice and more as warranted social feedback for writing what comes across as a creepy post on a local subreddit.

Yeah, if you really thought I came across as creepy then that's really just your personal interpretation. That says more about you than it does me. You seem like kind of a jerk.

You have a very condemnatory attitude. Here, I have a book for that.

https://www.amazon.com/Judgment-Detox-Release-Beliefs-Living/dp/1501168967

It's not too late. Start living a healthy judgment-free life today!

Edit: after thinking this over a bit... Let's just pretend that my post was a sad and desperate attempt to find someone. Admittedly, this is how you interpreted my post. So, what if I was suicidal and this was a last ditch effort to find some connection that could give me some kind of hope, enough to carry on.

Is telling someone in that state mind, that they are repulsive, really the best thing to say? Don't you think you could have treated this situation with a little sensitivity and compassion? If you really thought my post was sad and desperate than your reaction to it was very cruel.


Edit part duex: Also "female" is both an adjective and a noun. Look it up in the dictionary.