Libraries

 

Libraries can be accessed by any wxMaxima process regardless of which directory it runs in, if they are placed in the user directory. This directory can be found by typing maxima_userdir;


라이브러리가 사용자 디렉터리에 있는 경우 실행되는 디렉터리에 관계없이 모든 wxMaxima 프로세스에서 라이브러리에 액세스할 수 있습니다. 이 디렉터리는 maxima_userdir를 입력하여 찾을 수 있습니다;


maxima_userdir


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Temperature effects_maturity

  In the   CEB-FIP Model Code 90 ,   maturity   is a concept used to predict the rate at which concrete gains strength based on temperature and time.   Eq. (2.1-87)   is used to calculate the   maturity-adjusted time   t_T$ $​ , which accounts for the effects of temperature on concrete's strength development. \(  S=\int d^{4} x\left(\frac{R}{2 \kappa}\right) \) begin{eqation} S=\int d^{4} x\left(\frac{R}{2 \kappa}\right) end{equation} Definition of Equation (2.1-87): The maturity-adjusted time tTt_T tT​  is calculated as: tT=∫t0texp⁡[QR(1T0−1T(τ))]dτt_T = \int_{t_0}^{t} \exp \left[ \frac{Q}{R} \left( \frac{1}{T_0} - \frac{1}{T(\tau)} \right) \right] d\tau tT​=∫t0​t​exp[RQ​(T0​1​−T(τ)1​)]dτ$$ Where: tTt_T tT​  = maturity-adjusted time (in days) tt t  = real elapsed time (in days) t0t_0 t0​  = start time for the calculation (usually 0) QQ Q  = activation energy for hydration process, typically around 33,500 J/mo...
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