Abstract:
A system (10) that can accurately monitor and control low concentrations of ethylene gas includes a test chamber (26) configured to receive sample gas potentially containing an ethylene concentration and ozone, a detector (28) configured to receive light produced during a reaction between the ethylene and ozone and to produce signals related thereto, and a computer (14) connected to the detector to process the signals to determine therefrom a value of the concentration of ethylene (13) in the sample gas. The supply for the system can include a four way valve configured to receive pressurized gas at one input and a test chamber. A piston is journaled in the test chamber with a drive end disposed in a drive chamber and a reaction end defining with walls of the test chamber a variable volume reaction chamber. The drive end of the piston is pneumatically connected to two ports of the four way valve to provide motive force to the piston. A manifold is connected to the variable volume reaction chamber, and is configured to receive sample gasses from at least one of a plurality of ports connectable to degreening rooms and to supply the sample gas to the reactive chamber for reaction with ozone. The apparatus can be used to monitor and control the ethylene concentration in multiple degreening rooms.
Abstract:
A surface for the alignment of liquid crystals containing directionally-linked groups and compounds useful for preparing such surfaces are disclosed.
Abstract:
An automated inspection system is provided wherein an inspection of a surface and the processing of inspection data acquired from the surface can be performed with limited or no operator involvement and wherein a high level of consistency can be s maintained between each inspection and between each processing of inspection data across multiple inspections of the surface.
Abstract:
Conducting substrate (1) for use in display device having a conducting polymer on the surface of a rigid or flexible, flat, curved or bent substrate.