Isolation Definition and 68 Threads

  1. I

    Atomic Isolation: Conditions for Line Spectra

    Hi Guys! *waves* Anyway, I was just wondering what conditions and in what state are atoms sufficiently isolated so that it gives rise to a line spectra. I thank you all for any help you provide in advance. Many thanks, Icetray
  2. J

    Ground plane isolation question

    Hello All, I was talking to a friend about how to properly isolate a digital board from a high-powered output stage. The output stage in my application make square wave pulses that can be as high as 500V. So my first thought was to galvonically isolate the output stage circuitry from the...
  3. J

    What is the best way to transfer an analog voltage signal through isolation?

    Hello, Lets say that you have an analog control voltage that can vary from 0 to 5V and you want to send it through some sort of isolation barrier to another board. How do you do it? In my case, I have a voltage sensor that will return this range of values and I want to be able to transfer...
  4. G

    How Does Isolation Work When Keeping Drinks Hot or Cold?

    hi everybody, how does isolation work ? some things don't conduct heat , whereas other don't conduct cold. what gives these properties ? and in what proportion ? im pretty sure mass density of the objects is sometimes related , but there must be more factors to it since light...
  5. U

    Isolation from magnetic field?

    Is there any material such that if you make a hollow object out of it, the magnetic field inside is not equal to the magnetic field outside, but it is very small or zero?
  6. L

    Differential Equation isolation

    Solve the differential equation: \frac{dy}{dx}-\frac{y}{x}=3x^{2} Where y(1)=3 Can't figure out how to isolate each side. Played with it forever to no success. Any tips?
  7. S

    Is an Ice/Water Mixture Preferred Over Pure Ice in the Crystallization Process?

    In the crystallization process after gravity filtration is carried out, a mixture of ice and water is sometimes used as a bath instead of just ice. I know that the ice/water bath can be used to cool the filtrate to around 0 C while just crushed ice or an ice-salt bath may cool the filtrate to...
  8. I

    Ground Fault Isolation: Resolving Nuisance GFI Tripping

    We are using 120V commercial grade electronic ballasts, properly grounded, rated at 2Amps to drive two low pressure UV lamps submerged in water rated at 800mA. System requirements are to use GFI barkers with each ballast. This installation in a wastewater treatment plant, where there are...
  9. J

    [Chemistry Lab] Isolation of Aldehyde and Carboxylic Acid

    [Chemistry Lab] Cannnizzaro Reaction Hi! I am having some questions about my chemistry lab. In the lab we are given 1 of the 5 unknown aldehyde (benzaldehyde, anisaldehyde, nitrobenzaldehyde, chlorobenzaldehyde, and dimethoxybenzaldehyde) and reacts it with methanol and KOH to undergo...
  10. iansmith

    New stem cell isolation protocol

    http://www.nytimes.com/2006/08/24/science/24stem.html?ei=5090&en=b2d5fa804870604d&ex=1314072000&adxnnl=1&partner=rssuserland&emc=rss&adxnnlx=1156554793-b82hPYSiVvSMmyaDSW1cDA Good news but I am afraid it will not help the political debate
  11. K

    Social isolation caused by working on my master's thesis is driving me

    It's official. Social isolation caused by working on my master's thesis is driving me insane. The sharp difference between the academic year, with it's frequent meetings, social events and occasional lecture and the summer where all I can look forward to is writing another section is starting...
  12. Loren Booda

    Optimizing Number Isolation: Equal vs. Unequal Bisection Strategies

    Given a large but finite number line including an arbitrarily chosen number, what strategy of (un)equal bisections will isolate that number within a minimum of steps? For instance, should one choose equal bisecting, or would a series of unequal 2:1 bisecting be more efficient? Might e or phi...
  13. wolram

    Can a single quark exist in isolation ?

    Can a single quark exist in isolation ?
  14. S

    Designing Isolation Transformer A/C: Single & Three Phase Input

    i want to design an isolation transformer A/C, with single phase and three phase input. How do i go about it?
  15. E

    No Newbies Here? - Isolation & Yearning for Friends

    no newbie?? i don't know why i always see some particular members posting here. some new people come but they soon leave. isn't it because you're always talking to your old friends and don't give a f*** to a poor newbie?:cry: how many years i should resist and put up with this situation till...
  16. T

    Isolation of a variable exponent?

    1 = a^{b} How can I isolate b in that equation? Thanks. ^^
  17. M

    OligoTex mRNA Isolation Columns (QIAGEN, Valencia, CA)

    I am looking for this kit but i can't find it. Can someone help me? OligoTex mRNA isolation columns (QIAGEN, Valencia, CA) I will use this for isolation of mRNA . Thank you.
  18. D

    Isolating Cobalt from Ore - Industrial Process

    How do you isolate cobalt industilly from its ores? I was thinking about some oxidation: Co_2S_4 + 4~O_2 ~ \rightarrow 4~SO_2 + Co_3 Gratefull, Danne
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