Voxel Volume

In scanning mode the sequential detection of single pixels (picture elements) and voxels (volume elements) results in long measurement times in practice, therefore, only small volumes (10 x 10 x 1 p,m ) can be measured [3.56]. 

We define the spin-displacement density function, q(z, Z), so that the density of spins - the number of spins divided by the voxel volume - that have displacements between Z and Z + dZ in a voxel at z is q(z, Z)dZ. The density function q(z, Z) can be expressed in terms of local spin density p(z) and the normalized displacement distribution function P(z, Z) ... 

Figure 9 (a) Three-dimensional view of 3D solid concentration with a horizontal gas jet in the fluidized bed (b) 3D voxel-volume-averaged solid phase velocity vector map in the Y-Z plane of the fluidized bed (c) 3D voxel-volume-averaged solid phase vector map (Wang et al., 2008) (see Plate 12 in Color Plate Section at the end of this book). 

The typical field strength (1.5 T) used in the 1990s did not allow for good spatial resolution (31P has low NMR sensitivity), and voxel volume was typically about 50 cm3. Jensen and colleagues improved on previous studies, and reported on in vivo 31P MRS on a 4 Tesla MR scanner with people with schizophrenia... 

The volume of cells is calculated as the number of voxels i belonging to each Voronoi region Vj, times the voxel volume h3, where h is voxel size. The symbol... 

Children s Emergency Fund Voxel Volume element, sampling volume... 

The stored object can be represented either as a wire model or as a half-tone (pseudo-coloured) image. The wire-model permits quantitative measurements whereas the half-tone image uncovers structures. Both representations may be superimposed and, furthermore, combined with functional values to represent a dynamic functional model. The representation as a half-tone image with all its details requires a lot more information than the wire model (Roger Adams, 1976 Wu et al, 1977). Therefore the object is stored in a virtual cube shaped space (Meagher, 1982). This cube can be subdivided down to its atomic elements, the voxels (volume elements as pixels , for picture elements), which finally hold binary object information. 

The remaining configurational integral for each initial state is a sum of the contributions from each voxel, multiplied by the mass-weighted voxel volume... 

Std-OIT Standard oxidative induction time Voxel Volume element... 

Voxel Volume over which a signal is sununed (Pixel is the 2d spatial analogue)... 

Some velocity models are built using voxels (volume elements) that define homogeneous 3D regions. Other models combine different datasets using interpolation rules that assign weights based on the location of the point of interest relative to the data points. 

Voxel Volume element in the object being imaged. The strength of the signal from a voxel determines the brightness of the corresponding pixel in the image. 

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