No abstract

Precise measurements have been made of the rate of sedimentation of whole blood in which the concentrations of red blood cells and the plasma proteins have been systematically varied. The contribution of each factor to the sedimentation process is expressed in terms of three parameters that describe the sedimentation c w e : the set-up time, and the slopes of the fint and second phases of settling. This analysis affords delination between the onset and the degree of aggregation of the red blood cells as contributors to the usual ESR value. the height of plasma in a 200 nm blood column after 60 min. In t e m of the 60 min ESR value, an increase in the haematocrit or albumin concentration inhibits sedimentation, the latter only slightly. whereas an increase in the concentration of globulin or fibrinogen accelerates sedimentation. with fibrinogen showing the more marked effect.

No abstract

No abstract

First β scan experiments have been made in ASDEX Upgrade in H-mode plasmas with type-I ELMs. Two sets of discharges, performed in different density ranges, scan β between β N = (1.4-2.2) and β N = (1.4-2). Global analysis of these dedicated experiments exhibits a strong unfavourable β scaling as Bτ th ∝ β −0.9 . This tendency is confirmed by a local analysis which shows an increase in the thermal heat diffusivity with increasing β as χ eff /B ∝ β 0.65 . These results are discussed and compared with studies made in DIII-D, JET and JT-60U.