Since September, iRex Technologies, also a Philips spinoff, has been testing a plastic, electronic newspaper with the French daily paper Les Echos.
Rutamu, a development officer with the Tanga Dairy Development Programme in Tanzania, was testing a plastic unit that cost only US$50.
They tested a black plastic curtain Holden had devised for another researcher, and Serio was wary.
Researchers conducted cell crush tests using a plastic wedge within a 20-L explosion-containment chamber filled with 6.5% CH4-air to simulate the mining hazard.
To conduct a test, a plastic ring (6.5 cm diameter×5.5 cm high), which was used to confine subjects for testing, was inserted firmly into the sand of the open foraging area, within 10 cm of the nest entrance, previously established as a marked area in C. cursor ants [22].
For the hole cross test, a plastic made transparent cage (30 cm × 20 cm × 14 cm) was provided with a partition fixed in the middle of the cage.
Working with simple items he bought at a local hardware store -- a wire hanger, a squishy ball, zip ties, and duct tape -- Cox fashioned a prototype of his invention and tested it on a plastic coffee can: a malleable plug that could be instantly inserted into a narrow leak and expand to completely seal it.
Increasing the volume of sample tested by using a plastic sheet method in urine collection may overcome such problems (12 ).
The tested samples were a plastic cover of a semiconductor memory card, made of polycarbonate (PC), an eraser, made of polyvinyl chloride (PVC), a magnet, made of chlorinated polyethylene (CPE) and anisotropic ferrite, a human tooth, and a pig trachea specimen.
The test uses a plastic stick with a pad that is rubbed against the gums and placed in a vial of reagent solution.
