Bars: 100 μm. Figure 6c showed massive formation of reactionary (rd) and reparative dentin (rep), whereas the central part remained largely open depending on the size of the pulp exposure (Fig. 6d) (arrow).
Three specimens were lost because of technical problems (very small size of harvested pulp tissue), and thus the final investigation group consisted of 56 specimens (among which 5 specimens correspond to the control group).
The size of white pulp areas in either WT or LTα−/− grafts was not significantly different (p=0.24), although they were smaller than those within normal spleen tissue of comparable age (WT grafts p=0.01, LTα−/− grafts p=0.13, Fig. 3A).
No Pulp, Some Pulp and then Lots of Pulp.
The study reported a maximum recovery of 91.03% under the following optimum conditions: low ash high sulphur coal, Karanja oil, coal particle size of +75 200 μm and pulp density of 3% (wt./vol)./vol
Measurements of pulp horn sizes were performed at three localisations, whereby four μCT models of different grey values (i.e. 1612 HU; 1807 HU; 2001 HU; 2148 HU) were compared with the corresponding pulp in histological sections.
The effect of parameters such as degree of hydrophobicity, gangue concentration (entrained solids), initial bubble size (pulp bubble size) and froth height has been investigated.
The various operational parameters considered during the current study were the type of coal, type of oil, coal particle size and pulp density.
In the next stage the experiments were done accordance with a central composite design to find the optimal conditions; the three factors of particle size, pulp density, and aeration rate were chosen for examination.
In addition, enzymatic removal of xylan and glucomannan were shown to enlarge the pore size of pine or birch Kraft pulps [ 40].
