摘要:
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracting the molybdenum and/or other value metal from the aqueous solution by contacting it with an organic phase solution containing a phosphinic acid, stripping the molybdenum and/or other value metal from the organic phase solution by contacting it with an aqueous phase strip solution containing an inorganic compound and having a ≦1.0 M concentration of free ammonia, and recovering the molybdenum and/or other value metal by separating it from the aqueous phase strip solution. When the molybdenum and/or other value metal are present only in low concentration, the processes can include an organic phase recycle step and/or an aqueous phase strip recycle step in order to concentrate the metal prior to recover.
摘要:
A printing process identifies conditions for operating an image receiving member to transfer a plurality of ink images from the image receiving member to a plurality of media sheets between applications of release agent to the image receiving member. The printing process transfers a first ink image from the image receiving member to a first media sheet, identifies a size of a second ink image, and forms the second ink image entirely within a portion of the surface of the image receiving member that carried the first ink image. The printing process enables printing with acceptable quality while reducing the consumption of release agent and wear on components in the printer.
摘要:
Presenting one or more suggested search-engine queries based on an initial search-engine query is described herein. Once the initial query is received, a search engine determines whether any web content is relevant thereto. If not, a query-suggestion service determines whether any suggested queries can be substituted for the initial query. If not, the query is spell-corrected, if necessary, and parsed into individual terms. Each parsed term is then checked to see whether it can be associated with alternative search terms. Terms than can are combined and their combination is also checked for alternative search terms. All of the alternative search terms are scored and then assembled into a list of suggested search terms that is presented to the user.
摘要:
A drum maintenance system for use in an imaging device includes a reservoir for the storage of release agent used by the drum maintenance unit. The reservoir includes a bottle, an end cap, and a float sensor. The float sensor has a buoyant member that is pivotably coupled to a proboscis extending from the end cap into the bottle and movement of the buoyant member enables detection of the release agent in the bottle reaching a predetermined level.
摘要:
A peristaltic pump mechanism comprises a gear having teeth configured for meshed engagement with a drive source, such as a DC motor and a pair of occlusion members configured to compress a transport tube against an occlusion surface. Each occlusion member is mounted on an axle, with one end of the axle mounted on the first gear and an opposite end of each axle engaged by a support member. Two support ribs are mounted between the gear and the support element. The pair of occlusion members includes a first pair of rollers mounted on the gear 180° apart from each other. The two support ribs are mounted on the gear 180° apart from each other and offset 90° from the pair of rollers. The DC motor drives a worm gear in meshed engagement with the gear of the pump mechanism.
摘要:
A method of servicing a customer replaceable unit of an imaging device includes providing a customer replaceable unit configured for insertion and removal from an imaging device. The customer replaceable unit includes at least an applicator configured to apply a release agent to a surface of an intermediate transfer drum of the imaging device, a reservoir including a supply of the release agent for the applicator, a delivery pump configured to pump release agent from the reservoir to the applicator, a recirculation pump configured to pump release agent from the applicator to the reservoir, and a memory including operational data for the customer replaceable unit. A maintenance procedure is then performed on the customer replaceable unit.
摘要:
Multiple entities are tracked over periods of time and information concerning these entities are collected. For each entity, the entities associated with the entity and the types of associations are determined. One or more entities of interest is/are identified. Different weights are assigned to the entities on the trajectories connecting with the entity or entities of interest based on their associations with the entity or entities of interest and their positions on the trajectories. Selected entities are ranked and surfaced based on their total weights for the entity or entities of interest.
摘要:
In a thermal printer in which ink is transferred from a single-use thermal print ribbon to a substrate such as packaging material by energizing selected print elements of a thermal print head (22), a first print run is executed by energizing only a group of print elements in registry with one half of the ribbon width so that ink is depleted from only one half of the ribbon, and a second print run is executed by energising the same group of elements using the same ribbon but with the ribbon supply and take-up spools interchanged in order that ink is depleted only from the other half of the ribbon. This allows printing on comparatively narrow printing areas using ribbon which is at least twice the width of the printed area without undue ribbon wastage and with reduced ribbon breakage frequency compared to the breakage frequency with a ribbon of a width nearer to the width of the printed area.