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  2. Mass balance - Wikipedia

    en.wikipedia.org/wiki/Mass_balance

    The concept is the same as for a large mass balance, but it is performed in the context of a limiting system (for example, one can consider the limiting case in time or, more commonly, volume). A differential mass balance is used to generate differential equations that can provide an effective tool for modelling and understanding the target system.

  3. Detailed balance - Wikipedia

    en.wikipedia.org/wiki/Detailed_balance

    A Markov process is called a reversible Markov process or reversible Markov chain if there exists a positive stationary distribution π that satisfies the detailed balance equations [13] =, where P ij is the Markov transition probability from state i to state j, i.e. P ij = P(X t = j | X t − 1 = i), and π i and π j are the equilibrium probabilities of being in states i and j, respectively ...

  4. Weighing scale - Wikipedia

    en.wikipedia.org/wiki/Weighing_scale

    The balance (also balance scale, beam balance and laboratory balance) was the first mass measuring instrument invented. [1] In its traditional form, it consists of a pivoted horizontal lever with arms of equal length – the beam or tron – and a weighing pan [10] suspended from each arm (hence the plural name "scales " for a weighing instrument).

  5. Analytical balance - Wikipedia

    en.wikipedia.org/wiki/Analytical_balance

    An analytical balance (or chemical balance) is a class of balance designed to measure small mass in the sub-milligram range. The measuring pan of an analytical balance (0.1 mg resolution or better) is inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance's operation ...

  6. Material flow analysis - Wikipedia

    en.wikipedia.org/wiki/Material_flow_analysis

    Perform a mass balance check for all processes and the system as a whole. Optional: Visualise your system by using the box-and-arrow scheme shown above or by using Sankey diagrams. Document the MFA by reporting the explicit system definition along with the list of quantified system variables and the mass balance checks.

  7. How to check your bank account balance - AOL

    www.aol.com/finance/check-bank-account-balance...

    Key takeaways. Check your balance online, on the phone, through your bank's mobile app, at the ATM and with bank statements. A bank teller can provide account details in person.

  8. How to balance your checking account and why it matters - AOL

    www.aol.com/finance/balance-checking-account-why...

    3. Update your account balance regularly. In your check registry, always determine your available balance. This way, you’ll know what you have left to spend before going to the store, initiating ...

  9. Here’s How Often You Should Check Your Checking Account ...

    www.aol.com/often-check-checking-account-balance...

    “Ideally, you should check your checking account balance around once a week,” said Scott Lieberman, founder of Touchdown Money. “If you’re struggling financially or you make a lot of ...