Abstract: A network-based data store may implement retention-based management techniques for data stored at the network-based data store. When data is received for storage at the network-based data store, a retention time for the data may be determined. Storage locations at persistent storage devices of the network-based data store may be selected according to the retention time. The data may then be placed at the storage locations. When a request to delete data is received, retention times of co-located data may be evaluated to determine whether the deletion may be delayed. Delayed deletions may allow the data to be subsequently deleted with at least some of the co-located data. Repair operations to maintain the data according to a durability policy may be modified according to retention time for a data suffering a loss of redundancy.

Abstract: A system includes a storage system configured to store data objects as a plurality of shards according to a redundancy encoding technique at a plurality of availability zones. The system further includes a redundancy reduction manager configured to perform a shard spreading process and a shard pruning process. The shard spreading process involves identifying an underutilized availability zone for a particular data object and moving at least one shard of the particular data object from another availability zone to the underutilized availability zone. The shard pruning process involves identifying a pruning candidate availability zone and deleting a shard of a particular data object at the pruning candidate availability zone in response to determining that deleting the shard would not violate a durability model for the particular data object.

Abstract: In a first embodiment, a system includes a turbine system including turbomachinery, one or more processors, and a memory storing instructions. When executed by the one or more processors, the instructions are configured to cause the one or more processors to receive an operating parameter of the turbomachinery, and calculate a risk of failure for the turbomachinery based at least in part on an asset failure mode model. The instructions are also configured to cause the one or more processors to categorize the risk of failure as a selected failure indicator category of a plurality of failure indicator categories, and output the selected failure indicator category.

Abstract: An extruded honeycomb catalyst for nitrogen oxide reduction according to the selective catalytic reduction (SCR) method in exhaust gases from motor vehicles includes an extruded active carrier in honeycomb form having a first SCR catalytically active component and with a plurality of channels through which the exhaust gas flows during operation, and a washcoat coating having a second SCR catalytically active component being applied to the extruded body, wherein the first SCR catalytically active component and the second SCR catalytically active component are each independently one of: (i) vanadium catalyst with vanadium as catalytically active component; (ii) mixed-oxide catalyst with one or more oxides, in particular those of transition metals or lanthanides as catalytically active component; and (iii) an Fe- or a Cu-zeolite catalyst.

Abstract: An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a substrate; a first washcoat region comprising palladium (Pd) and a first support material comprising cerium oxide; and a second washcoat region comprising platinum (Pt) and a second support material.

Abstract: A method for performing auto-repair of a data volume may include determining a number of unavailable shards from a plurality of shards associated with a data volume. The plurality of shards may be stored in a plurality of data centers. The data volume may be erasure-coded with a total of N shards and can be reconstructed using at least K available shards out of the N shards. The unavailable shards may be filtered to exclude shards that have been unavailable for less than a threshold amount of time. For each of the plurality of data centers, a total number of unavailable shards may be determined if the data center is disabled. The total number of unavailable shards may be based at least in part on a number of shards associated with the data volume and stored at the data center, and a number of the filtered unavailable shards stored at the remaining plurality of data centers.

Abstract: A network-based data store may implement retention-based management techniques for data stored at the network-based data store. When data is received for storage at the network-based data store, a retention time for the data may be determined. Storage locations at persistent storage devices of the network-based data store may be selected according to the retention time. The data may then be placed at the storage locations. When a request to delete data is received, retention times of co-located data may be evaluated to determine whether the deletion may be delayed. Delayed deletions may allow the data to be subsequently deleted with at least some of the co-located data. Repair operations to maintain the data according to a durability policy may be modified according to retention time for a data suffering a loss of redundancy.

Abstract: An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a substrate; a first washcoat region comprising palladium (Pd) and a first support material comprising cerium oxide; and a second washcoat region comprising platinum (Pt) and a second support material.

Abstract: A gas turbine engine system for detecting control sensor override includes a plurality of temperature sensors coupled to the gas turbine engine system. The temperature sensors are configured to generate a plurality of signals representative of exhaust gas temperatures of the gas turbine engine. The system includes an on-site monitoring system coupled in communication to the plurality of temperature sensors. The on-site monitoring system has a processor programmed to continuously receive the plurality of signals from the temperature sensors. In addition, the processor is programmed to analyze the plurality of signals to verify the accuracy of the exhaust gas temperatures associated with the plurality of signals, and to detect a jumpered temperature sensor of the plurality of temperature sensors.

Abstract: A network-based data store may implement retention-based management techniques for data stored at the network-based data store. When data is received for storage at the network-based data store, a retention time for the data may be determined. Storage locations at persistent storage devices of the network-based data store may be selected according to the retention time. The data may then be placed at the storage locations. When a request to delete data is received, retention times of co-located data may be evaluated to determine whether the deletion may be delayed. Delayed deletions may allow the data to be subsequently deleted with at least some of the co-located data. Repair operations to maintain the data according to a durability policy may be modified according to retention time for a data suffering a loss of redundancy.

Abstract: An apparatus includes a first floor tile that includes a bottom layer that is composed of a wood polymer composite and having a main portion, a tongue portion extending beyond a first edge of the main portion, a groove portion extending within the main portion at a second edge of the main portion opposite the first edge, the base portion having a width. The first floor tile includes a top layer that is composed of ceramic and having a width greater than the width of the main portion, the top layer fixed to the bottom layer such that (1) a first edge of the top layer extends beyond the first edge of the main portion and covers a portion of the tongue portion, (2) a second edge of the top layer extends beyond the second edge of the main portion and covers a portion of the tongue portion.

Abstract: Embodiments of the present invention are capable of lowering touch scan rates in a manner that conserves power resources without compromising performance or user experience thereby promoting battery life. Embodiments of the present invention perform touch scan operations using a touch sensitive panel at a first scan rate. In response to certain events automatically detected within the mobile device (e.g., when a full-screen video is being displayed), embodiments of the present invention may then perform touch scan operations at a second scan rate that is slower than the first scan rate that also consumes less power compared to the first scan rate. As such, for events or use cases in which limited user interaction with the touch sensitive panel is typical, embodiments of the present invention may lower touch scan rates in a manner that still enables users to interact with applications (e.g., interaction with playback controls during video playback) and promotes efficient power usage and extends battery life.

Abstract: An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a substrate; a first washcoat region comprising palladium (Pd) and a first support material comprising cerium oxide; and a second washcoat region comprising platinum (Pt) and a second support material.

Abstract: A synthetic aluminosilicate zeolite catalyst containing at least one catalytically active transition metal selected from the group consisting of Cu, Fe, Hf, La, Au, In, V, lanthanides and Group VIII transition metals, which aluminosilicate zeolite is a small pore aluminosilicate zeolite having a maximum ring size of eight tetrahedral atoms, wherein the mean crystallite size of the aluminosilicate zeolite determined by scanning electron microscope is >0.50 micrometer.

Abstract: An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a substrate; a first washcoat region comprising palladium (Pd) and a first support material comprising cerium oxide; and a second washcoat region comprising platinum (Pt) and a second support material.

Abstract: Erasure encoded fragments are originally generated by applying an erasure encoding scheme to a data file. An erasure encoded fragment is subsequently generated directly from previously generated erasure encoded fragments or by reconstructing the original data file and then erasure encoding the reconstructed data file. The integrity or fidelity of such a subsequently generated erasure encoded fragment is verified by newly generating an error detection code, such as but not limited to a checksum, for the subsequently generated erasure encoded fragment, and comparing that subsequently error detection code against an error detection code previously generated for a previous or original version of the erasure encoded fragment. Each error detection code is preferably stored in association with its corresponding erasure encoded fragment and with one or more other erasure encoded fragments. Thus, each error detection code is saved in at least two locations.

Abstract: An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidizing nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NOx absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.

Abstract: Erasure encoded fragments may be originally generated by applying an erasure encoding scheme to a data file. An erasure encoded fragment may be subsequently generated directly from previously generated erasure encoded fragments or by reconstructing the original data file and then erasure encoding the reconstructed data file. The integrity or fidelity of such a subsequently generated erasure encoded fragment may be verified by newly generating an error detection code, such as but not limited to a checksum, for the subsequently generated erasure encoded fragment, and comparing that subsequently generated error detection code against an error detection code previously generated for a previous or original version of the erasure encoded fragment. Each error detection code is preferably stored in association with its corresponding erasure encoded fragment and with one or more other erasure encoded fragments. Thus, each error detection code is saved in at least two locations.

Abstract: An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a substrate; a first washcoat region comprising palladium (Pd) and a first support material comprising cerium oxide; and a second washcoat region comprising platinum (Pt) and a second support material.

Abstract: Accessories for sports apparatuses are shown and described. The sports apparatuses may be surfboards. The accessories take the form of thin layers of material for application to an area where selective patterning of wax is desired. The accessories include patterned textures which selectively encourage wax accumulation in desirable patterns. Illustrative accessories may have single or multiple layers, and allow for ready removal of old, used and/or dirty wax with less effort than conventional approaches.