Abstract: An efficient simulated moving bed device and an efficient simulated moving bed process are provided. The efficient simulated moving bed device comprises an adsorption bed, a raw material feeding system, a desorbent feeding system, a circulating system, an extract system, a raffinate system, a program-controlled valve group, and an automatic control system.

Abstract: A head-mounted device (HMD) can be configured to determine a request for recognizing at least one content item included within content framed within a display of the HMD. The HMD can be configured to initiate a head-tracking process that maintains a coordinate system with respect to the content, and a pointer-tracking process that tracks a pointer that is visible together with the content within the display. The HMD can be configured to capture a first image of the content and a second image of the content, the second image including the pointer. The HMD can be configured to map a location of the pointer within the second image to a corresponding image location within the first image, using the coordinate system, and provide the at least one content item from the corresponding image location.

Abstract: In a general aspect, a head-mounted device (HMD) can be configured to receive a selection of a mode of operation of a content reader of the HMD from a plurality of modes of operation, and initiate, in response to the selection, a content capture process to capture content within a field of view (FOV) of a camera of the HMD. The HMD can be further configured to identify, in the captured content, a plurality of content items, receive a navigation command to select a content item from the plurality of content items, and provide, in response to the navigation command, readback of the selected content item.