The fluctuating velocity field in an air–water bubble column (i.d. 15.2 cm) at a gas fraction of 25% is investigated using backscatter LDA. Since the interpretation of LDA signals in bubbly flows is not straight forward also experiments on a single bubble train are reported. It is discussed that in the latter case when using seeding the backscatter LDA measures predominantly the liquid velocity...

the effect of welding residual stresses that was created in thin infill plate of steel plate shear wall system during constructional processes was studied in this research. residual stresses in a welded structure is the result of the non-uniform expansion and contraction and plastic deformation of the weld and surrounding base metal due to heating and cooling cycle, during welding process, this...

The pattern of elution from a column of Sephadex G-50 of a fucose-labeled carbohydrate component derived from the surface glycoproteins of transformed cells can be altered to resemble that from untransformed cells by enzymatic removal of the sialic acid. These results indicate that the consistent differences found between control and virus-transformed cells may depend upon a relatively specific...

Hij = K ·Rij ·K−1. Here Rij denotes a column-wise permutation of R, shuffling the columns i and j to be column 1 and 2. 1.1. Computing y4 from y1, y2 and y3 Let a be a known aspect ratio defined as w/h, where h is the height and w the width of the front wall in the physical world (we know these dimensions from the rental site). Then, given two corner points p1 and p2 of a wall, defined by the t...

Isoaccepting transfer RNA species for several amino acids were fractionated by reverse phase column chromatography. Transfer RNA from dividing cells of pea (Pisum sativum) root was compared to that from nondividing cells, and no relative quantitative or qualitative differences were noted for the transfer RNA species for leucine, lysine, proline, threonine, methionine, serine, and phenylalanine....

To determine the spinal innervation and neuronal connections is important for studying gastric carbohydrate metabolism and motor responses. Neurons involved in the efferent control of the stomach were identified following visualization of pseudorabies virus (PRV)-614 retrograde tracing. PRV-614 was injected into the ventral stomach wall in 13 adult C57BL/6J strain male mice. On the fifth day po...

When analyses of mixtures of small molecules are carried out at mobile phase velocities close to (for isocratic runs) or somewhat above (for gradient runs) the optimum velocity, the eddy diffusion term contributes to at least 75% of the band broadening. Future improvements in column performance may come only from a reduction of the eddy diffusion term. The classical models of axial dispersion o...