Micheal Weatherley. Have you noticed Jensen Ackles from season 2 Dark Angel (Alec) is now showing up everywhere? (...well Smallville and Supernatural).
2006-09-16 01:26:49
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answer #1
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answered by Ellie 4
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The basic function of a chemical ODE solver is to take a set of input chemical species concentrations and temperature, at the beginning of a time-step, evolve them over a time interval and return a set of output species concentrations and temperature. PRISM parametrizes these numerical solutions of the ODE and replaces them with a set of algebraic expressions that do the same thing, viz. take a set of input chemical species concentrations and temperature, at the beginning of a time-step, evolve them over a time interval and return a set of output species concentrations and temperature. The algebraic expressions are polynomials, with the independent variables on the right hand side being
the Ns species concentrations
the temperature
the time-step, dt
Thus given a point in chemical composition space (CC space) and a time-step dt, the evaluation of the polynomial gives the time-evolved new mixture at a time dt later. The technique is known as solution-mapping, and the resultant algebraic polynomial is called a response surface. The algebraic expressions have a limited domain of validity (since a quadratic polynomial is simpler in form than a non-linear differential equation containing an Arrhenius term.) To cover large parts of CC space therefore requires multiple polynomials, each valid over a different portion of CC space, calculated and stored in data structures. PRISM: Piecewise Reusable Implementation of Solution Mapping. An Economical Strategy for Chemical Kinetics, Shaheen R. Tonse, Nigel W. Moriarty, Nancy J. Brown and Michael Frenklach, Israel J. Chem., Vol.39, 97, (1999).
2006-09-15 22:32:02
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answer #2
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answered by Anonymous
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Michael Weatherly
http://www.cbs.com/primetime/ncis/bios/michael_weatherly_bio.shtml
Now you can rest =o)
2006-09-15 21:13:12
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answer #3
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answered by cooliodudette 2
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i watched dark angel, never saw ncis, bur r u talking about jessica alba's ex-michael weatherly???
2006-09-16 00:52:20
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answer #4
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answered by bored_ass_little_girl 5
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