Abstract: An automated order fulfillment system and mobile robot are disclosed, where the mobile robot includes a compliant drive for moving between levels of a multilevel storage structure.

Abstract: An automated order fulfillment system and mobile robot are disclosed, where the mobile robot includes a compliant drive for moving between levels of a multilevel storage structure. In one example, the compliant drive comprises a drive shaft having splines configured to provide rotational play that prevents jamming of a vertical drive gear on the end of the shaft with a rack in a vertical track.

Abstract: Provided herein are energy storage devices. In some cases, the energy storage devices are capable of being transported on a vehicle and storing a large amount of energy. An energy storage device is provided comprising at least one liquid metal electrode, an energy storage capacity of at least about 1 MWh and a response time less than or equal to about 100 milliseconds (ms).

Abstract: Methods of making molded polystyrene articles are described. The methods include introducing steam into a mold simultaneous to filling the mold with foam particles, and cooling the mold without the use of cooling water. The method can be performed faster and with a lower temperature differential than conventional molding processes, permitting faster turn-around to the production of subsequent molded articles. The molded articles produced by the method can have thicker side walls, improved foam particle fusion, and improved compression properties as compared to conventional EPS molding processes.

Abstract: The problem of digital data corruption heat occurs when an analog card is inserted into a card/time slot of a D4 channel bank is effectively remedied by sampling and analyzing the channel bank's transmit enable (TNEN) lead for successive frames of time slots. Unless analyzed TNEN lead samples of a channel unit time slot of interest derived over successive frames have the same logic state associated with an analog channel unit, the PCM data lead remains default-coupled to a digital data transmission lead. This prevents PCM-encoded spurious noise on the analog PAM lead from being erroneously asserted in place of serialized digital data bits that should have been passed directly from the digital data bus to the PCM bus.

Abstract: There is provided an improved flat electrical communications cable which includes a plurality of coplaner pairs of elongated, insulated conductors. The pairs of conductors are embedded in a jacket which supports the cable and maintains the spacing among the conductors and pairs. The spacing between conductors in a pair is substantially less than the spacing between each adjacent pair. The jacket is thicker in the regions around each pair and thinner in the regions between each pair, thus forming the valleys and ridges on each side of the jacket. An elongated metal shield covers at least one side of the jacket. The shield conforms to and is contiguous with the valleys and ridges resulting in somewhat of a sinusoidal cross-sectional appearance of the shield. Each conductor includes a dual insulation, the inner insulation being made from a flame retardant material and the outer insulation being made from a different material from the jacket.