ICE CRYSTAL GROWTH DURING THE RAPID FREEZING OF TISSUES

Ice Crystal Growth during the Rapid Freezing of Tissues

This paper contains a few comments on the physical analysis of the factors controlling the rate of cooling, and the relation of the rate of cooling to ice crystal formation which has been carried out in connection with the electron microscopic work described by Dr. C-ersh at this conference. Of the many factors which influence the rate of cooling, by far the most important is the size of the sa...

Freezing Properties of Disaccharide Solutions: Inhibition of Hexagonal Ice Crystal Growth and Formation of Cubic Ice

the effect of e-64 on the developmental competence of sheep cocs during in vitro maturation

in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.

Precision Measurements of Ice Crystal Growth Rates

I describe techniques for making precise measurements of the growth rates of the principal facets of ice crystals. Particular attention is paid to identifying and reducing systematic errors in the measurements, as these have plagued earlier attempts to determine ice growth rates. I describe the details of an experimental apparatus we are currently using, and I describe some preliminary results ...

EFFECT OF SPIRAL DESIGN ON CRYSTAL ORIENTATION DURING SINGLE CRYSTAL GROWTH

Geometrical design of the spiral crystal selector can affect crystal orientation in the final single crystal structure. To achieve a better understanding of conditions associated with the onset of crystal orientation in a spiral crystal selector, temperature field was investigated using three-dimensional finite element method during the process. Different geometries of spiral crystal selec...