:The cold box which contains : aperture stops, field stops, field lens that images the aperture stop on the cube corners, dichroic plates dividing the whole spectrum range into the three spectral bands, lenses which produce an image of the field stop onto the detection unit, three focal planes that are equipped with micro lenses.
32.
In 2010, with increasing threat of virus outbreak in Ludhiana, Punjab; Malegaon, Maharashtra; Murshidabad, West Bengal, U . P and Bihar, Rotary Task Force Committee have been formed and the State Govts . are being supported with IEC materials vaccine carriers, marker pens, cap / aprons, cold boxes, etc . and free general health camps in affected districts are being conducted.
33.
Determined to get on with his work, he located some " dry ice " ( solid CO 2 ) and placed it into the bottom of the " cold box . " Creating a cloud with his breath he observed a sudden and heretofore unseen bluish haze that suddenly turned into millions of microscopic ice crystals that dazzled him in the strobe lit chamber.
34.
Another liquid stream from the lower section of the demethanizer ( at about 2 �C ) is routed through the cold box and returned to the demethanizer at about 12 �C . In effect, the inlet gas provides the heat required to " reboil " the bottom of the demethanizer and the turboexpander removes the heat required to provide reflux in the top of the demethanizer.
