摘要:
Disclosed is a catalyst for the polymerization of olefins comprising thienyl-substituted silanes, which comprises a solid titanium catalyst component containing titanium, magnesium and a halogen as the main components, an alkylaluminum compound, and a component of organosiloxane compound comprising two thienyl as substituents represented by general formula (I). The molar ratio of each catalyst component is 1:50-150:5-50 based on titanium:aluminum:silicon. When the catalyst is used in the polymerization of propylene, the polymerisate obtained has very high degree of isotacticity, and the yield is high.
摘要:
Disclosed is a catalyst for the polymerization of olefins comprising thienyl-substituted silanes, which comprises a solid titanium catalyst component containing titanium, magnesium and a halogen as the main components, an alkylaluminum compound, and a component of organosiloxane compound comprising two thienyl as substituents represented by general formula (I). The molar ratio of each catalyst component is 1:50-150:5-50 based on titanium:aluminum:silicon. When the catalyst is used in the polymerization of propylene, the polymerisate obtained has a very high degree of isotacticity, and the yield is high.
摘要:
An approach is provided for determining one or more recommendations based on an incremental update of a recommendation model. An incremental platform causes, at least in part, a categorization of activity information into a plurality of subsets based, at least in part, on one or more user groups, one or more item groups, at least one update time for at least one recommendation model associated with the activity information, or a combination thereof. The incremental platform further processes and/or facilitates a processing of the activity information based, at least in part, on the categorization to determine whether to perform an incremental update of the at least one recommendation model. The incremental platform also determines one or more recommendations based, at least in part, on the at least one recommendation model, the incremental update, or a combination thereof.
摘要:
An approach is provided for determining one or more recommendations based on an incremental update of a recommendation model. An incremental platform causes, at least in part, a categorization of activity information into a plurality of subsets based, at least in part, on one or more user groups, one or more item groups, at least one update time for at least one recommendation model associated with the activity information, or a combination thereof. The incremental platform further processes and/or facilitates a processing of the activity information based, at least in part, on the categorization to determine whether to perform an incremental update of the at least one recommendation model. The incremental platform also determines one or more recommendations based, at least in part, on the at least one recommendation model, the incremental update, or a combination thereof.
摘要:
An approach is provided for creating a connection between users of a social network. The approach involves determining location information associated with a user and other location information associated with one or more other users. The approach also includes processing the location information and the other location information to cause, at least in part, identification of one or more encounters, one or more encounter patterns, or a combination thereof with respect to the user and the one or more other users. The approach further includes determining to generate at least one recommendation to create at least one social network, at least one social networking relationship, or a combination thereof between the user and at least one of the one or more other users based, at least in part, on the one or more encounters, the one or more encounter patterns, one or more meetings and/or events, or a combination thereof.
摘要:
FIG. 1 is a front perspective view of an expandable cable harness storage, showing my new design; FIG. 2 is a rear perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top view thereof; FIG. 8 is a bottom view thereof; FIG. 9 is a perspective view of the design shown in use; and, FIG. 10 is a perspective view of the design shown in an alternate configuration. The broken lines in the drawings illustrate the portions of the expandable cable harness storage, which form no part of the claimed design.
摘要:
A steering-wheel computer bracket includes two foldable support assemblies. Each foldable support assembly comprises a fixed portion, a movable portion, and a support element. An end of the movable portion is hinged to a side of the fixed portion and can be flipped to have an angle with respect to or to attach to the side of the fixed portion, the other side of the fixed portion serves as a mounting surface; an end of the support element is rotatably connected to the other end of the movable portion, the support element is capable of being flipped, along with the movable portion being flipped, to attach to a side of the fixed portion or to have an angle relative to the side of the fixed portion.
摘要:
FIG. 1 is a front, left and top perspective view of a security camera, showing my new design; FIG. 2 is a rear, left and bottom perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top plan view thereof; and, FIG. 8 is a bottom plan view thereof. The broken lines shown in the drawings illustrate portions of the security camera that form no part of the claimed design.
摘要:
A steering-wheel computer bracket includes two foldable support assemblies. Each foldable support assembly comprises a fixed portion, a movable portion, and a support element. An end of the movable portion is hinged to a side of the fixed portion and can be flipped to have an angle with respect to or to attach to the side of the fixed portion, the other side of the fixed portion serves as a mounting surface; an end of the support element is rotatably connected to the other end of the movable portion, the support element is capable of being flipped, along with the movable portion being flipped, to attach to a side of the fixed portion or to have an angle relative to the side of the fixed portion.
摘要:
FIG. 1 is a rear and bottom perspective view of a laptop stand, showing my new design; FIG. 2 is a front and top perspective view thereof; FIG. 3 is a front elevation view thereof; FIG. 4 is a rear elevation view thereof; FIG. 5 is a left side elevation view thereof; FIG. 6 is a right side elevation view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; FIG. 9 is an enlarged perspective view of detail “9” identified in FIG. 1; FIG. 10 is an enlarged perspective view of detail “10” identified in FIG. 1; FIG. 11 is an enlarged perspective view of detail “11” identified in FIG. 2; FIG. 12 is an enlarged perspective view of detail “12” identifed in FIG. 2; FIG. 13 is another perspective view thereof, shown in an in use position; FIG. 14 is another perspective view thereof, shown in an alternative position; FIG. 15 is another rear and bottom perspective view thereof; and, FIG. 16 is another front and top perspective view thereof. The dashed lines in the figures illustrate portions of the laptop stand that form no part of the claimed design. The dash dot dash lines in FIGS. 1, 2, 9, 10, 11 and 12 are for the purpose of illustrating the enlarged views indicators and form no part of the claimed design. The even broken lines showing of a steering wheel in FIG. 13 depict environmental structure that form no part of the claimed design.