Abstract: A phase change material includes a salt-water solution having a first salt, a second salt and water; a gelling agent; a thermal conductivity enhancer; and a nucleation agent. The phase change material is suitable for use as a cold storage material, in particular, for maintaining an environment at a temperature of from ?15 to ?40° C. The phase change material may be used in a cold storage pack.

Abstract: A method of formulating a ternary salt-water solution having a target phase change temperature—the ternary salt-water solution having a first salt, a second salt and water—includes: identifying at three or more temperatures, a maximum total concentration of the first and second salts in a saturated solution thereof, and the respective concentration of each salt therein, correlating the respective concentration of each salt therein with temperature, predicting a concentration for each of the salts at the target phase change temperature using the correlations, and formulating a ternary salt-water solution with a concentration of the first and second salts based on the predicted concentrations at the target phase change temperature. The method is suitable for phase change material screening, and in particular identifying and optimising phase change materials which can be used as cold storage materials.

Abstract: A lightweight turf pallet is formed of High Density Polyethylene and is formed by a twin-skin vacuum molding process under high pressure. The pallet has top and bottom faces each with an array of frusto-conical cavities formed in rows on each face, the cavities on opposed faces being coaxial and joined at their apices to form a web therebetween. A system for constructing a recreation or sporting surface comprising such pallets, together with corner joiner members and surface pads is also described and claimed.

Abstract: A lightweight turf pallet is formed of High Density Polyethylene and is formed by a twin-skin vacuum moulding process under high pressure. The pallet has top and bottom faces each with an array of frusto-conical cavities formed in rows on each face, the cavities on opposed faces being coaxial and joined at their apices to form a web therebetween. A system for constructing a recreation or sporting surface comprising such pallets, together with corner joiner members and surface pads is also described and claimed.

Abstract: A method of positioning a sensor in a human or animal body tissue comprising the steps of: i. providing a flexible stylet capable of penetrating the tissue, ii. providing flexible tubing having a bore capable of receiving separately the stylet and the probe; iii. positioning the stylet received in the tubing in the tissue; iv. removing the stylet; v. inserting the probe in the bore of the tubing; and vi. removing the tubing.

Abstract: A dye-donor element for thermal dye transfer comprises a support having thereon a merocyanine dye dispersed in a polymeric binder, the merocyanine dye being capable of transfer by diffusion to a dye-receiving element upon the application of heat and being incapable of substantial photolysis, the merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.In a preferred embodiment, the merocyanine dye has the formula: ##STR1## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO.sub.2 R or --SO.sub.2 NR.sub.2 ; or A may be combined together with R.sup.1 to form a heterocyclic or carbocyclic ring system;R.sup.1 represents --NHR, --NR.sub.