Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and a method for generating an avatar. The program and method perform operations comprising delivering, by a messaging server, a notification to a client device that identifies a fashion item for customizing an avatar of a user; causing the notification comprising the fashion item to be displayed on the client device; receiving, by the messaging server, a request from the client device to access the fashion item; determining that the request from the client device to access the fashion item has been received prior to expiration of a scarcity parameter of the fashion item; and enabling the client device to access the fashion item in response to determining that the request from the client device has been received prior to the expiration of the scarcity parameter of the fashion item.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: The present invention provides a catalyst mixture comprising FCC catalysts and a metal passivator/trap and use thereof in trapping metal contaminants during the catalytic cracking of hydrocarbon feedstocks.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. The catalyst is formed by spray-drying a slurry containing water, substantially inert microspheres and a zeolite precursor and crystallizing zeolite in the active shell to create the cracking catalyst. Methods of using the cracking catalyst are also described.

Abstract: The present invention provides a catalyst mixture comprising FCC catalysts and a metal passivator/trap and use thereof in trapping metal contaminants during the catalytic cracking of hydrocarbon feedstocks.

Abstract: A composition for promoting the oxidation of CO and minimizing NOx emissions during FCC processes comprises (i) acidic oxide support, (ii) at least one precious metal for promoting CO oxidation, and (iii) metals or metal oxides capable of reducing NOx production during CO oxidation, at least one precious metal (ii) being primarily distributed in the central interior of particulate additive and the metals or metal oxides (iii) being primarily distributed in the particulate additive as a shell around the precious metal.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A method for testing the performance of catalysts used for conversion of FCC regenerator gases comprises subjecting the catalyst simultaneously to a mixture of gases including an oxidizing gas and a reducing gas in more than one cycle in which the ratio of the oxidizing gas to the reducing gas varies over the time of the cycle. Test gases comprising O2, CO, CO2, steam, nitrogen-containing gases and sulfur-containing gases in which the ratio of O2 to CO varies over time for each cycle and in which the products of combustion formed during each cycle can be measured periodically over the cycle yields important data on the usefulness of the catalysts for treatment of regenerator flue gas.

Abstract: Ammoxidation catalysts have been found effective for the reduction of emissions of NOx and NOx precursors during FCC catalyst regeneration.

Abstract: The invention relates to a system and a method for tracking and executing a job comprising a series of tasks. Each task is executable on a separate computing device. The method comprises: utilizing a workload manager to identify an initial schedule of implementation for the job; utilizing agents to selectively control execution of the tasks; and for each agent, utilizing a publish/subscription interface to isolate communications of the workload manager from each agent and to communicate with other publish/subscription interfaces of other agents to determine when to activate its task. The interface utilizes a broker adapted to communicate with other brokers to disseminate communications amongst the agents.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: The invention relates to a system and a method for tracking and executing a job comprising a series of tasks. Each task is executable on a separate computing device. The method comprises: utilizing a workload manager to identify an initial schedule of implementation for the job; utilizing agents to selectively control execution of the tasks; and for each agent, utilizing a publish/subscription interface to isolate communications of the workload manager from each agent and to communicate with other publish/subscription interfaces of other agents to determine when to activate its task. The interface utilizes a broker adapted to communicate with other brokers to disseminate communications amongst the agents.

Abstract: A composition for promoting the oxidation of CO and minimizing NOx emissions during FCC processes comprises (i) acidic oxide support, (ii) at least one precious metal for promoting CO oxidation, and (iii) metals or metal oxides capable of reducing NOx production during CO oxidation, at least one precious metal (ii) being primarily distributed in the central interior of particulate additive and the metals or metal oxides (iii) being primarily distributed in the particulate additive as a shell around the precious metal.

Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.

Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.

Abstract: A millimeter or submillimeter wavelength device including a substrate having a horn shaped cavity, and first and second extension layers formed on a top surface of the substrate adjacent to the horn shaped cavity. The first and second extension layers define additional opposed sides of the horn shaped cavity, channels, and walls of the waveguide. Internal surfaces of the horn shaped cavity, the channels, and the waveguide walls include a conductive layer. Two such structures, which are mirror images of each other, are joined to form a horn antenna with integrated channels and a waveguide. The device is fabricated by forming a resist layer on a substrate which includes a horn shaped cavity. The resist layer is etched to form a half horn antenna, channels and walls of a waveguide. Internal surfaces of the half horn antenna, the channels, and the walls of the waveguide are then metalized. Two such metalized structures are then joined to form a full horn antenna integrated with channels and a waveguide.

Abstract: A millimeter or submillimeter wavelength device including a substrate (2) having a horn shaped cavity (18), and first and second extension layers formed on a top surface of the substrate adjacent to the horn shaped cavity. The first and second extension layers define additional opposed sides of the horn shaped cavity, channels, and walls of the waveguide. Internal surfaces of the horn shaped cavity, the channels, and the waveguide walls include a conductive layer. Two such structures, which are mirror images of each other, are joined to form a horn antenna with integrated channels and a waveguide. The device is fabricated by forming a resist layer on a substrate which includes a horn shaped cavity. The resist layer is etched to form a half horn antenna, channels and walls of a waveguide. Internal surfaces of the half horn antenna, the channels, and the walls of the waveguide are then metalized. Two such metalized structures are then joined to form a full horn antenna integrated with channels and a waveguide.

Abstract: This invention relates to a novel computerized laser inlay and inlay printing process. More particularly, this invention pertains to a novel process for engraving by use of computer a first excavated image in an inlay base, and secondly engraving a second corresponding relief image on an inlay wafer, and then inlaying the second relief image of the inlay wafer in the first excavated image of the inlay base.