摘要:
This invention is directed to a method of operating a wormgear drive at high energy efficiency comprising filling an oil reservoir with a wormgear lubricant comprising an isomerized Fischer-Tropsch derived distillate fraction having a low traction coefficient and operating the wormgear drive with the filled oil reservoir at an equilibrium temperature between 20 and 225 degrees C. This invention is also directed to a process for reducing the traction coefficient of a higher-traction coefficient lubricating base oil by blending it with an isomerized Fischer-Tropsch derived distillate fraction. This invention is also directed to a wormgear lubricant comprising an isomerized Fischer-Tropsch distillate fraction and between 2 and 50 weight percent thickener.
摘要:
The present application relates to methods for producing a lubricant base oil from a waxy hydrocarbon feed using a sulfided shape selective, intermediate pore size, noble metal-containing molecular sieve catalyst. According to the present invention, a shape selective, intermediate pore size, noble metal-containing molecular sieve catalyst is sulfided to provide a sulfided catalyst, wherein the molar ratio of sulfur to noble metal in the sulfided catalyst is greater than one, and a waxy hydrocarbon feed is hydroisomerized by contacting the waxy hydrocarbon feed with the sulfided catalyst at hydroisomerization conditions, to produce a lubricant base oil.
摘要:
A nuclear medicine imaging device includes a plurality of detector heads (10) mounted to a movable gantry for rotation around an examination region (12). The detector heads (10) include a housing (28) which surrounds a radiation sensitive crystal (26) which converts received radiation events. A positioning mechanism on the gantry maintains a relationship between the detector heads (10) such that the housing for one detector head lies adjacent to and overlaps the housing for another detector head. During an imaging event, the gantry rotates the detector heads (10) about a region of interest (12) while radiation events are sampled. At a predetermined position relative to the area of interest, the overlapping of the detector heads is reversed.
摘要:
Disclosed herein is a method of making a crosslinked membrane such as a crosslinked hollow fiber membrane. The method comprises (a) preparing a polyimide polymer comprising carboxylic acid functional groups from a reaction solution comprising monomers and at least one solvent; (b) treating the polyimide polymer with a diol at esterification conditions to form a monoesterified polyimide polymer; (c) forming a monoesterified polyimide membrane or dense film from the monoesterified polyimide polymer; and (d) subjecting the monoesterified polyimide membrane or dense film to transesterification conditions under a CO2 atmosphere to form a crosslinked polyimide membrane or dense film.
摘要:
The present invention relates to an image warping software algorithm for a real time alteration of a display scene running under the Microsoft Windows Operating System. The image warping software algorithm alters the display scene and allows an observer to view the display scene as a single unbroken image when the display scene is distributed across multiple display screens. The purpose of the image warping software algorithm is to significantly reduce the distortion observed at the abutting edges of the joined display screens.
摘要:
A system includes a server and a source client executable on a first electronic device in communication with the server The server is configured to provide to a second electronic device in communication with the server access to location data implementable by a user interface associated with the second electronic device The location data enables the user interface to display the geographical location of the first electronic device The access to the location data is accessible to the second electronic device only during a time interval designated by a user of the first electronic device.
摘要:
A multi-grade engine oil composition meeting required specifications of manufacturers is provided. In one embodiment, the engine oil composition contains a sufficient amount of a Pour Point Reducing Blend Component for the engine oil to have cold crank simulator viscosity at −20° C. of less than have a cold crank simulator viscosity at −20° C. of less than 9000 cP and a mini rotary viscometer (MRV) viscosity at −20° C. of less than 60,000 cP. The Pour Point Reducing Blend Component is selected from 1) an isomerized Fischer-Tropsch derived bottoms product; 2) a bottoms product prepared from an isomerized highly waxy mineral oil, or 3) an isomerized oil having a kinematic viscosity at 100° C. of at least about 8 mm2/s made from polyethylene plastic.
摘要:
The present invention is directed to siRNA molecules that down-regulate the expression of proteins that inhibit bone formation. In another aspect, the instant invention is directed to compositions and/or implants comprising in combination such siRNA molecules in a pharmaceutically acceptable carrier or implant.
摘要:
A multigrade automotive gear lubricant comprising a base oil having a traction coefficient less than 0.021. A method for saving energy using a gear lubricant, comprising blending a multigrade gear lubricant by adding a base oil having a traction coefficient less than 0.021, and using the gear lubricant in an axle or differential. A process for making an energy saving automotive gear lubricant having a kinematic viscosity at 100° C. greater than 10 cSt. A gear lubricant comprising a FT derived base oil having a VI greater than 150 and a traction coefficient less than 0.015. A finished lubricant, comprising a FT derived base oil having a traction coefficient less than 0.015. A base oil having a traction coefficient less than 0.011 and a 50 wt % boiling point greater than 582° C.
摘要:
The present invention relates to molecules that stabilize and/or enhance CD154 activity, compositions comprising these molecules, methods for using these molecules and compositions (e.g., pharmaceutical compositions) comprising them. Specifically, the molecules can be used for enhancing immune function (e.g., enhancing Th1 cytokine expression), stimulating immune responses, and/or treating certain disorders (e.g., cancer, infectious disease, and immune compromised states). The invention also relates to kits and compositions comprising the molecules.