Optimisation studies based on dissipation or TL maximization showed the sensitivity of the liner constituting parameters to variations in the design target range such as the center frequency, the levels of acoustic excitation and the nature of the surface impedance (locally or nonlocally reacting).
The constants c(dupl), c(loss), c(gain), c(gain_big), c tr_without), c tr_with), c sleep) define the costs of individual events and constitute parameters of the algorithm.
Recently, animal and clinical studies have suggested that Doppler tissue imaging (DTI) of the mitral annulus and early diastolic blood flow propagation velocity measured using colour M-mode may constitute parameters of LV diastolic function that are relatively preload independent [ 8- 13].
Significant deviations were found, due to both differences in representation and uncertainties in the constituting parameters.
Clinical data and, when available, biological parameters were extracted in order to score patients using the RPA [ 1], the GPA [ 2], the BS-BM [ 3], the P1PS [ 4], the Breast-GPA [ 12], the Breast-RPA [ 14] and Le Scodan's score [ 13], whose constituting parameters are detailed in Table 1.
The formula of the American Gas Association is used to calculate the compressibility factor [15]: begin{aligned} z p, T) = 1 + alpha pend{aligned} (9 where (alpha) constitutes a parameter given as a function of the pseudocritical pressure (p_c) and the pseudocritical temperature (T_c): begin{aligned} alpha = 0.257 frac{1}{p_c} - 0.533 frac{T_c}{p_cT} end{aligned} (10).
However, it was aimed at obtaining a basis for estimating the number of patients needed for a larger investigation in which VAP also constitutes a parameter.
In the relatively simpler scenario of this type, the topology and regulatory structure of the biological system is known, and the extraction of information from the data constitutes a parameter estimation task.
These parameters indicate the effect of prenatal mercury exposure corrected for measurement error, and they constitute the parameters of main interest in this analysis.
The so obtained parameters constitute the initial parameter values.
