Abstract: We describe techniques to reduce DC ripple voltage in an inverter by determining a plurality of switching events for each of the three phases in each Pulse Width Modulation (PWM) period. The switching events provide a desired target output voltage for the respective PWM period. From this determination of the switching events, a comparison can be made to determine a first time period between a first and second switching event across all of the phases, and a second time period between the second and a third switching event across all of the phases. The timing of one or more switching events in only one of the phases in the respective PWM period is adjusted in response to the determined time period being greater than a threshold in order to reduce the determined first or second time period.

Abstract: Example implementations relate to metadata operations in a storage system. An example method includes receiving, from a first stream process, a first write request for a first container index in memory. The method further includes, in response to a receipt of the first write request, sending a first token to the first stream process without writing the first container index to a persistent storage. The method further includes receiving, from a second stream process, a first completion request for the first container index. The method further includes, in response to a receipt of the first completion request, writing the first container index from the memory to the persistent storage.

Abstract: Example implementations relate to metadata operations in a storage system. An example includes a storage controller loading a manifest from persistent storage into memory, and loading a first container index from persistent storage into the memory. The first container index is associated with the manifest loaded into the memory. The storage controller determines whether a tracking data structure of the first container index includes an identifier of the manifest. In response to a determination that the tracking data structure of the first container index does not include the identifier of the manifest, the storage controller discards the manifest.

Abstract: A variety of improved techniques for homebuyers to access undeveloped and/or uncompleted communities with homes that are not yet built and lots that are not yet parceled or recognized with addresses are disclosed.

Abstract: Example implementations relate to storing manifest portions in a metadata cache. An example includes receiving, by a storage controller, a read request associated with a first data unit. In response to receiving the read request, the storage controller stores a manifest portion in a metadata cache, the stored manifest portion comprising a plurality of records, the plurality of records including a first record associated with the first data unit. The storage controller determines storage information of the first data unit using pointer information included in the first record of the stored manifest portion, and replaces the pointer information in the first record with the determined storage information of the first data unit.

Abstract: Examples implementations relate to journals for metadata changes. An example includes detecting, by a storage controller, metadata changes associated with a container index of a deduplication storage system; recording, by the storage controller, the detected metadata changes in a journal associated with the container index, where the journal is included in a journal group comprising a plurality of journals; determining, by the storage controller, whether a filled amount of the journal exceeds a fill threshold; and, in response to a determination that the filled amount of the journal does not exceed the fill threshold, writing the journal group from memory to persistent storage.

Abstract: Methods and apparatuses for performing atomic layer deposition are provided. A method may include determining an amount of accumulated deposition material currently on an interior region of a deposition chamber interior, wherein the amount of accumulated deposition material changes over the course of processing a batch of substrates; applying the determined amount of accumulated deposition material to a relationship between a number of ALD cycles required to achieve a target deposition thickness, and a variable representing an amount of accumulated deposition material, wherein the applying returns a compensated number of ALD cycles for producing the target deposition thickness given the amount of accumulated deposition material currently on the interior region of the deposition chamber interior; and performing the compensated number of ALD cycles on one or more substrates in the batch.

Abstract: A semiconductor arrangement and an inverter incorporating the semiconductor arrangement, in particular to an inverter for use with traction power units e.g. for on and off road vehicles and stationary power inversion, are described. In the arrangement, semiconductor devices are thermally and electrically coupled to a heatsink as a module. The heatsink is configured as a bus bar to electrically connect the one or more semiconductor devices together to transmit power between the one or more semiconductor devices. The semiconductor devices may be cooled using the structure to which they are attached, and also immersed in a cooling medium to further increase the cooling of the device.

Abstract: A method of treating an exhaust gas from an internal combustion engine comprising contacting the exhaust gas with a lean NOx trap catalyst is disclosed. The lean NOx trap catalyst comprises a first layer and a second layer.

Abstract: A variety of improved techniques for homebuyers to access undeveloped and/or uncompleted communities with homes that are not yet built and lots that are not yet parceled or recognized with addresses are disclosed.

Abstract: Certain aspects of the present disclosure provide an ice management system, including: a plurality of pulsejets located within an interior volume of an aircraft and configured to heat an aircraft surface, wherein each pulsejet of the plurality of pulsejets comprises: an inlet; a combustor; a fuel source; and an exhaust nozzle; and a plurality of intake apertures in the aircraft, wherein each intake aperture of the plurality of intake apertures corresponds to an inlet of one pulsejet of the plurality of pulsejets.

Abstract: The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a slurry having a solids content of up to 50 wt % by mixing together at least the following components a crystalline molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor and an aqueous solvent at a temperature in the range 10 to 35° C.; (b) coating a substrate with the slurry formed in step (a); and (c) calcining the coated substrate formed in step (b) to form a catalyst layer on the substrate. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.

Abstract: In some examples, in response to an event at the deduplication system, a system accesses item metadata of a backup item that is backed up to a remote object storage system, the item metadata of the backup item including range information indicating a range of identifier values for portion objects of the backup item stored in the remote object storage system. The system issues, based on the range information, requests to obtain respective attribute information of the portion objects of the backup item stored in the remote object storage system. The system determines, based on the attribute information, a name of a given portion object of the backup item already used.

Abstract: The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50% by weight by mixing together a crystalline small pore or medium pore molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.

Abstract: A method of preparing a catalyst composition for producing a stable ratio of NO2 to NO in an exhaust system of a compression ignition engine is described. The method comprises: (i) preparing a first composition comprising a platinum (Pt) compound disposed or supported on a support material; (ii) preparing a second composition by reducing the platinum (Pt) compound to platinum (Pt) with a reducing agent; and (iii) heating the second composition to at least 650° C.

Abstract: A technology for providing validation and optimization for listings on an online marketing platform for home sellers is described. In some embodiments, the disclosed technology provides a validation tool for users of the online marketing platform to quality check the users' home feeds in real-time through a graphical user interface of the online marketing platform. In some embodiments, the disclosed technology provides an optimizer tool for the users to optimize the users' home feeds through a graphical user interface of the online marketing platform. The users of the online marketing platform can be home sellers, which can include, for example, home builders, brokers, and their agents.

Abstract: SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.

Abstract: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer, a second layer, and a third layer.

Abstract: Examples include selection of a remote object storage system for a deduplication data item. Some examples may include determination of an expected usage frequency for the deduplication data item, selection of a remote object cloud storage system based on the expected usage frequency for the data item, and provision of the deduplication data item to the selected remote object storage system for storage as an object in the selected remote object storage system.

Abstract: A lighting control device is provided which includes a microcontroller, at least one wireless transceiver, at least one dimmer, one or more lighting terminals powered by the at least one dimmer, at least one environmental sensor, and at least one input device. In operation, the microcontroller obtains environmental data from the at least one environmental sensor, obtains input data from the at least one input device, transmits the environmental data and the input data to an external server, obtains a lighting operating schedule based on the environmental data and the input data from the external server, and executes the lighting operating schedule from the external server by controlling one or more smart bulbs via the at least one wireless transceiver and controlling the electrical current output to lighting terminals.