Transient natural convection flows in closed containers technical report no. 2

Measurements and calculations of natural flow convection and thermal stratification in closed container

Transient, laminar, free-convection heat and mass transfer in closed, partially filled, liquid containers technical report no. 1

Two-dimensional, laminar, transient, natural- convection heat and mass transfer in closed, partially filled liquid container

Studies on the Blood Coagulation Mechanisms of Different Species Compared to Man, Volume Two

Abstract Not Provided

Studies on the Blood Coagulation Mechanisms of Different Species Compared to Man, Volume One

Blood coagulation has been investigated in lobsters, fowl, cattle, horses, and rabbits. Comparison has been made with the human blood coagulation mechanism, on the basis of current concepts of that system

Visual estimation of joint angles at the elbow

The aim of this study was to assess the accuracy of visual estimation of elbow joint angles. A total of 116observers (93 doctors and 23 physiotherapists) were shown 21 digital images of two arms in predeWned degrees of elbow Xexion on two separate occasions. They estimated the angle of Xexion to the nearest 5°. Only 70.8% of estimates were within +5°, although intra-observer agreement was good among all groups tested (ICC range 0.963-0.983). Orthopaedic consultants and registrars were equivalent and statistically better at estimating the angles compared to senior house officers and physiotherapists (P < 0.001). Compared to the angles of 85 and 90°, all other angles were signifcantly less likely to be estimated to within +5° (P < 0.001). In conclusion, visual estimation of joint angles at the elbow may not be desirable in cases where accurate serial assessment is required for clinical decision making. The use of a goniometer by an agreed standardized protocol is advised

Nonlinear wavelength selection in surface faceting under electromigration

We report on the control of the faceting of crystal surfaces by means of surface electromigration. When electromigration reinforces the faceting instability, we find perpetual coarsening with a wavelength increasing as $t^{1/2}$. For strongly stabilizing electromigration, the surface is stable. For weakly stabilizing electromigration, a cellular pattern is obtained, with a nonlinearly selected wavelength. The selection mechanism is not caused by an instability of steady-states, as suggested by previous works in the literature. Instead, the dynamics is found to exhibit coarsening {\it before} reaching a continuous family of stable non-equilibrium steady-states.Comment: 5 pages, 4 figures, submitte