Abstract: A rooftop support system including at least one support block. The support block includes a base configured to rest on the rooftop, and the base has a first base section and a second base section separated by a U-shaped recess that defines a first gripping feature. The support block includes first and second sidewalls unitary with the base and extending along a length of the support block, and the first and second sidewalls each define a second gripping feature. The support block also includes third and fourth sidewalls unitary with the base and extending along a width of the support block, and the third and fourth sidewalls each define a third gripping feature. An upper surface of the support block defines an elongate channel, and a pair of apertures are formed in the elongate channel with a coupling feature embedded therein.

Abstract: In one aspect, a method includes determining an allocation of nodes in a cluster to application containers using a node capacity and a policy, publishing the allocation to a coordinator, the coordinator configured to manage the nodes comprising a first node, reading the allocation from the coordinator and instructing a container manager in the first node to generate an application container in the first node conforming to the allocation.

Abstract: A distributed object store can expose object metadata, in addition to object data, to distributed processing systems, such as Hadoop and Apache Spark. The distributed object store may acts as a Hadoop Compatible File System (HCFS), exposing object metadata as a collection of records that can be efficiently processed by MapReduce (MR) and other distributed processing frameworks. A distributed processing job can specify a metadata query to narrow the set of objects returned. Related methods are also described.

Abstract: A rooftop support system including at least one support block. The support block includes a base configured to rest on the rooftop, and the base has a first base section and a second base section separated by a U-shaped recess that defines a first gripping feature. The support block includes first and second sidewalls unitary with the base and extending along a length of the support block, and the first and second sidewalls each define a second gripping feature. The support block also includes third and fourth sidewalls unitary with the base and extending along a width of the support block, and the third and fourth sidewalls each define a third gripping feature. An upper surface of the support block defines an elongate channel, and a pair of apertures are formed in the elongate channel with a coupling feature embedded therein.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for receiving a write request that includes data and a client address at which to store the data. The data is segmented into the one or more storage units. A storage unit identifier for each of the one or more storage units is computed that uniquely identifies content of a storage unit. A mapping between each storage unit identifier to a block server is determined. For each of the one or more storage units, the storage unit and the corresponding storage unit identifier is sent to a block server. The block server stores the storage unit and information on where the storage unit is stored on the block server for the storage unit identifier. Multiple client addresses associated with a storage unit with the same storage unit identifier are mapped to a single storage unit.

Abstract: An offset bushing for a structural member may include a tubular body having a cylindrical inner surface and a cylindrical outer surface. The cylindrical inner surface may have an inner diameter defining an inner axis. The cylindrical outer surface may have an outer diameter defining an outer axis. The inner axis may be spaced apart from the outer axis to define a linear offset. The offset bushing may include a bushing indexing feature configured to align with a member indexing feature of a member when the offset bushing is installed in a member bore. Alignment of the bushing indexing feature with the member indexing feature may cause the linear offset to be oriented substantially parallel to a loading axis of a load on the member.

Abstract: Embodiments of the present disclosure include an optical shuffle box. The optical shuffle box may include a set of optical connector ports and a set of optical fiber pigtails. Each optical fiber pigtail may have a first end and a second end. The second end of each optical fiber pigtail may include an optical connector. Each optical connector port may be communicatively coupled to the first end of two or more optical fiber pigtails.

Abstract: A rooftop support system including at least one support block. The support block includes a base configured to rest on the rooftop, and the base has a first base section and a second base section separated by a U-shaped recess that defines a first gripping feature. The support block includes first and second sidewalls unitary with the base and extending along a length of the support block, and the first and second sidewalls each define a second gripping feature. The support block also includes third and fourth sidewalls unitary with the base and extending along a width of the support block, and the third and fourth sidewalls each define a third gripping feature. An upper surface of the support block defines an elongate channel, and a pair of apertures are formed in the elongate channel with a coupling feature embedded therein.

Abstract: A density meter for measuring the density of a fluid, having a base plate, wherein a spring element is clamped to the base plate; a torpedo, wherein the torpedo comprises a known weight, and wherein the torpedo is attached or coupled to the spring element; and a sensor, wherein the sensor measures a deflection of the spring element, as the torpedo displaces a volume of fluid.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for receiving a write request that includes data and a client address at which to store the data. The data is segmented into the one or more storage units. A storage unit identifier for each of the one or more storage units is computed that uniquely identifies content of a storage unit. A mapping between each storage unit identifier to a block server is determined. For each of the one or more storage units, the storage unit and the corresponding storage unit identifier is sent to a block server. The block server stores the storage unit and information on where the storage unit is stored on the block server for the storage unit identifier. Multiple client addresses associated with a storage unit with the same storage unit identifier are mapped to a single storage unit.

Abstract: A radome for an antenna is provided as a composite of an isotropic outer layer and a structural layer of foamed polymer material. The composite is dimensioned to enclose an open end of the antenna. The radome may be retained upon the antenna by a retaining element and fasteners. The outer layer may be a polymer material with a water resistant characteristic. The structural layer may project inward and/or outward with respect to a plane of the seating surface of the radome.

Abstract: Performance of a distributed storage system with data distributed substantially, evenly across a cluster of storage devices can be dynamically managed of the distributed storage system with respect to performance guarantees to clients of the distributed storage system. Capacity of the distributed storage system in terms of one or more metrics can be determined. This measured capacity can then be compared with allocations of the metric(s) to clients of the distributed storage system. The allocations are determined based on quality of service parameters specified for the clients. The quality of service parameters at least include a maximum value and a minimum value for each of the one or more metrics, and can also include burst credits allocated to the clients. Access to the distributed storage system by the clients can be throttled to ensure the performance guarantees corresponding to the quality of service parameters are fulfilled.

Abstract: Methods for managing entitlements of products and services using blockchain are described. One method includes the steps of storing by a blockchain fabric a ledger that stores transaction data, smart contracts that process transactions, creating an entitlement, receiving by the blockchain a create entitlement transaction request, adding, by the smart contract, an entitlement block to the ledger, issuing by the entitled product a usage transaction that reports usage of the entitled product, upon receiving the usage transaction, adding, by a smart contract, a usage block to the ledger, and determining, by the smart contract, that an entitlement limit has been reached. Another method describes a container mechanism that provides a way to identify all blocks associated with a base entitlement.

Abstract: In an environment that includes a host computing system that executes virtual machines, and a secure cloud computing channel that communicatively couples the host to a client computing system that is assigned to a particular one of the virtual machines, the particular virtual machine generates a certificate, install the certificate on the itself, and returns a certificate representation to the client. This may occur when the virtual machine is provisioned. During a subsequent connection request from the client to the virtual machine, the virtual machine returns the certificate to the client. The client compares the certificate representation that was returned during provisioning with the certificate returned during the subsequent connection, and if there is a match, then the virtual machine is authenticated to the client. Thus, in this case, the virtual machine authenticates without the client having to generate, install, and manage security for a certificate.

Abstract: A small, hands free, portable, rechargeable, waterproof, UV-C light emitting disinfection device. The disinfection device has a durable outer housing that holds an array of externally facing Ultraviolet C spectrum (UV-C) Light Emitting (LEDs) that emit light within the germicidal range of the Ultraviolet C spectrum or between the wavelength(?) range of 200 nm to 280 nm. The disinfection unit can be deployed in a water bottle, backpack bladder, water jug, or any suitable container to disinfect water or other liquids.

Abstract: A computer-implemented method for using tags to manage software across a product life cycle, including storing by a server computer (i) a tag prototype database and (ii) a tag instance database, the method including the steps of creating a tag for a client software component, storing the tag in the tag instance database, receiving, by a client computer, the tag and the client software component, from an electronic software distribution computer, receiving a request from the client computer to initiate a session of the client software component, obtaining the tag, by the server computer, from the client computer, verifying the tag obtained from the client computer, updating the tag to include information about the session, and replacing the tag in the client computer with the updated tag.