His programme of Mozart concertos and Tchaikovsky miniatures required only minimum direction in performance; this was very much a showcase for Vengerov's supernatural command of the violin, his technique never less than faultless, his golden tone consistently sweet and mellifluous, even in the chattering brilliance of Tchaikovsky's Valse-Scherzo.
The main reason is that Δϕ and Δθ actually determines the minimum direction finding error for a given incoming direction.
As stated above, cluster 1 showed continuous, slow, and stiff movement with minimum direction change, manifested as an "arc" shape movement track in the early phase (Fig. 6d).
The width of the energy minima in Eq. (5) are set to w i =50 for all the minima directions, except for w 〈113〉=100 [39].
The eigenvalues and the eigenvectors are obtained from the second-order spectral moment tensor in the wavevector domain and can be used to determine the direction of maximum and minimum variation directions (or spectral extension directions) and to characterize the elliptic shape of the spectral anisotropy in the wavevector domain.
Furthermore, for DW MRN, MPGs are usually applied in no more than three different directions, whereas DTI requires a minimum of six different MPG directions [ 2– 4].
To account for the specific anisotropy of Si crystals, we set the minimum energy directions, m i, corresponding to 〈001〉, 〈113〉, 〈110〉, and 〈111〉 [45].
The maximum and minimum variance directions in the wavevector spectrum show an offset angle from the mean magnetic field by 76.9(^{circ }).
The essence of the analysis is to extract the information on the principal axis (or the maximum and minimum variance directions) using the spectral moments, and to interpret the spectra in the frame of random sweeping model.
