摘要:
A wall-flow honeycomb filter comprising a ceramic monolith (102) having a plurality of porous walls (114) formed therein. The plurality of porous walls (114) define a plurality of inlet cells (110) and a plurality of outlet cells (112) extending between an inlet end face (106) and an outlet end face (108) of the monolith. The inlet cells (110) are open at the inlet end face (106) and plugged at or near the outlet end face (108). The outlet cells (112) are open at the outlet end face (108) and plugged at or near the inlet end face (106). The monolith (102) has a ratio of a combined cross-sectional area of the inlet cells (110) to a combined cross-sectional area of the outlet cells (112) greater than 1. The monolith (102) has at least one inlet cell cluster (120) which contains an N x M group of inlet cells (110), N and M being integers greater than 1, each inlet cell cluster (120) consisting of a plurality of inlet cells (110) separated by inlet cluster walls (124).
摘要:
An arc discharge lamp (10), particularly an ultra high pressure lamp, a glass faceplate (16) for such lamp and a method of controlling transmission during lamp operation, the glass containing cuprous halide microcrystals dispersed therein and being capable of absorbing radiation below a wavelength of about 420 nm, the glass faceplate (16) having a film (22) that reflects ultraviolet radiation, and the method comprising maintaining the faceplate (16) at a low temperature during lamp operation to prevent a phase change in the cuprous halide.
摘要:
A microstructure for chemical processing and manufacture is disclosed. The microstructure includes a plurality of microchannel walls constructed of glass, ceramic, glass-ceramic or combinations of these materials, which define at least one microchannel for accommodating chemicals to be processed. At least one coating layer including a catalyst support and a catalyst is adhered to the plurality of microchannel walls. A method of manufacturing a microstructure for chemical processing and manufacture is also disclosed.