Abstract: A system for capturing atmospheric carbon dioxide is disclosed, including a track and a plurality of panels moveably coupled to the track, each panel having a sorbent material. The system also includes a harvest house having a sorbent regeneration system and at least one aperture, and a propulsion system coupled to the track and configured to move each panel in a circuit having a collection phase and a release phase. For each panel, the collection phase of the circuit includes the panel moving along the track to expose the sorbent material to an airflow and allow the sorbent material to capture carbon dioxide. For each panel, the release phase of the circuit includes the panel being sufficiently enclosed inside the harvest house that the sorbent regeneration system may operate on the sorbent material to release captured carbon dioxide from the sorbent material and form an enriched gas.

Abstract: An enhanced capture structure is disclosed, including a sorbent structure having a CO2 sorbent material. The capture structure also includes a plurality of barriers extending outward from the sorbent structure, each sized and positioned such that as an airflow passes along the sorbent structure, a high pressure region forms proximate the sorbent structure on a first side of the barrier facing into the airflow and a low pressure region forms proximate the sorbent structure on a second side of the barrier facing away from the airflow. The barriers on one side of the sorbent structure are staggered with respect to barriers on the other side such that a plurality of high and low pressure regions are formed, each high pressure region being formed opposite a low pressure region on the other side of the structure, creating a pressure differential that promotes CO2 mass transfer into the sorbent material via convection.

Abstract: In a circuit arrangement for a dropout detector for the detection of dropouts in signals which are reproduced from a record carrier, the signal path includes an amplitude discriminator before the threshold device which supplies a switching signal in the event of a dropout, the discriminator characteristic between two threshold levels of the output signals having a steep edge for amplitude discrimination in whose range the signal level which is decisive for the actuation of the threshold device is situated.

Abstract: The invention relates to a recording and/or playback apparatus for video signals, equipped with a rotary head system with at least one recording and/or playback head and at least one erase head for the trackwise erasing of a video signal recorded in the video tracks, which tracks cross a further track, specifically a synchronization track, the erase signal being applied to the rotating erase head via a time-controlled gate circuit, which interrupts the path of the erase signal to the erase head while said head scans the further track, thus preventing a signal recorded in the further track from being erased.