Recent content by Roark

  1. Roark

    Integral constant for internal energy of an ionic liquid

    I am still wrapping my head around it, but I think F(T) is the ideal gas heat capacity and temperature T. We are talking about finding out what this value really is. Are these fitted values from your non-ideal gas state simulations? I am going to assume that they are. Please let me know if I...
  2. Roark

    Integral constant for internal energy of an ionic liquid

    OK, thanks for the article! I just realized that Z is the compressibility factor. I hope I can give you something useful out of this conversation, since you've done a lot of explaining already. Basically, you calculated the total energy of the system as a function of temperature. And then you...
  3. Roark

    Integral constant for internal energy of an ionic liquid

    I am still unsure of what you are trying to achieve, but my advice is to just treat F(T) and F'(T) as zero. At the zero density limit (empty vacuum) I imagine the thermodynamic internal energy to be equal to zero, and the same with the heat capacity. Do you have a published article that you are...
  4. Roark

    I Does moisture escaping from powders decrease chamber vacuum?

    Out of curiosity, how does the RH meter you are using work? Is it supposed to work in vacuum?
  5. Roark

    Can rechargable Li-ion batteries be rebuilt?

    I suppose you can, but I don't think it is worthwhile. Faradaic reactions are what drives the charge/discharge cycle. When charging, Li+ ions become Lithium metal on the cathode surface. When discharging, Lithium metal releases electrons as it is dissolves into the organic solvent, back to Li+...
  6. Roark

    Testing PhD Thesis - "Novel" vs. "Short Stories"

    I do experiments when I need to get them done, but my work revolves around simulations. Mainly molecular simulations.
  7. Roark

    Testing PhD Thesis - "Novel" vs. "Short Stories"

    Thanks for the advice, although I don't think I have to create a contract with the professors... I feel that trying to work outside of the existing system may be offensive to some professors. Things are going well, and I just wanted it to be a little bit better.
  8. Roark

    Anyone considering a career as a patent attorney?

    What about other roles like paralegals? I read that law firms and tech companies will help employees take the Patent Bar. I hear contrasting opinions on law school though - some say employers don't encourage pursuing a law degree while some say that employers will go as far as funding law...
  9. Roark

    Testing PhD Thesis - "Novel" vs. "Short Stories"

    Thank you for the input everyone. I understand your worries. My adviser and I have a good working relationship and maintain a collaborative environment, and I won't do anything to risk that. I will find some time to discuss this with him. Thanks!
  10. Roark

    What influences ignition temperature and oxygen consumption

    Maybe I can help add a little complexity. You can try adding in the fact that only a certain portion of that mass can be considered flammable (x). I think it would be good to give it a property that describes how fast it can burn. This property can depend on porosity and maybe other factors. For...
  11. Roark

    Solution theories (Kirkwood-Buff to RISM and beyond)

    I have not, I'll give that an attempt.
  12. Roark

    What influences ignition temperature and oxygen consumption

    Flame ignition/propagation doesn't only depend on temperature. For example, flowing grain can spontaneously explode at room temperature (electrostatic discharge). I can light a match and drop it into a pool of ethanol and it will light on fire. There are people who study how fires can propagate...
  13. Roark

    Integral constant for internal energy of an ionic liquid

    It seems like you are doing molecular dynamics simulations? Or is it Monte Carlo? In any case, let's figure out what you are doing. First, what is the point of dividing the energy into the internal and thermal components. And an even more serious questions is how do you even subdivide it that...
  14. Roark

    What software do you use in your field of study?

    Wow, it seems like I'm an oddball here. GROMACS - It is a molecular dynamics software suite modeling the physical motions of atoms and molecules. It is optimized for biomolecules in liquids. SIESTA - It is an ab initio molecular dynamics software. It is optimized for crystal systems.
  15. Roark

    Anyone considering a career as a patent attorney?

    I thought of one more question :wink: 7. How can I find out if I have a talent for law besides going to law school?
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