Abstract: A method includes operating an engine system including a plurality of cylinders, a plurality of fuel injectors configured to provide fuel the plurality of cylinders, a compression braking system configured to selectably brake at least a first set of the plurality of cylinders, and an exhaust aftertreatment system including at least one catalyst. The method includes determining a condition for brake-fuel operation and, in response to the act of determining, operating the engine in a brake-fuel mode wherein the compression brake is actuated to provide compression braking of the first set of the plurality of cylinders and a second set of the plurality of cylinders receives and combust fuel provided from respective ones of the plurality of fuel injectors.

Abstract: A method includes operating an engine system including a plurality of cylinders, a plurality of fuel injectors configured to provide fuel the plurality of cylinders, a compression braking system configured to selectably brake at least a first set of the plurality of cylinders, and an exhaust aftertreatment system including at least one catalyst. The method includes determining a condition for brake-fuel operation and, in response to the act of determining, operating the engine in a brake-fuel mode wherein the compression brake is actuated to provide compression braking of the first set of the plurality of cylinders and a second set of the plurality of cylinders receives and combust fuel provided from respective ones of the plurality of fuel injectors.

Abstract: Roller cone drill bits and methods of increasing the wear resistance of a roller cone drill bit are disclosed. The roller cone drill bit includes a plurality of rolling elements within a bearing assembly of a cone. Each rolling element of the plurality of rolling elements may have a surface hardness of HRC 59-63, a hardened depth that is 0.5 mm to 3.0 mm deep, and may be derived from a low carbon bearing steel material. The hardened depth is measured from the surface of each rolling element and the low carbon bearing steel material has, by weight percent, from 0.12% to 0.25% carbon.

Abstract: A locking device for a door located at a door frame having a door strike. The locking device includes an actuator having a neutral position and a displaced position, and a latchbolt assembly having an extended position configured to engage the door strike, and a retracted position configured to move past the door strike. The latchbolt assembly includes a latchbolt link configured to move the latchbolt in response to movement of the actuator. A first dampening device is disposed adjacent to the latchbolt link, with the dampening device resiliently engaging the latchbolt link as the latchbolt link moves from the retracted position to the extended position. The first dampening device limits movement of the latchbolt link. A second dampening device is configured to restrain movement of the latchbolt during movement from the retracted position to the extended position.

Abstract: A cover for a hammer tool and systems, assemblies, and methods thereof can be flexible and can comprise a body; a first attachment interface at a first end portion of the body; and a second attachment interface at a second end portion of the body separated from the first end portion of the body. A predefined hinge can be formed in the body of the cover, between the first attachment interface and the second attachment interface. The cover can be configured to be fixedly coupled to a housing of a hammer tool via the first attachment interface. The cover can be configured to be removably coupled to the housing of the hammer tool via the second attachment interface.

Abstract: A method includes operating an engine system including a plurality of cylinders, a plurality of fuel injectors configured to provide fuel the plurality of cylinders, a compression braking system configured to selectably brake at least a first set of the plurality of cylinders, and an exhaust aftertreatment system including at least one catalyst. The method includes determining a condition for brake-fuel operation and, in response to the act of determining, operating the engine in a brake-fuel mode wherein the compression brake is actuated to provide compression braking of the first set of the plurality of cylinders and a second set of the plurality of cylinders receives and combust fuel provided from respective ones of the plurality of fuel injectors.

Abstract: A locking device for a door located at a door frame having a door strike. The locking device includes an actuator having a neutral position and a displaced position, and a latchbolt assembly having an extended position configured to engage the door strike, and a retracted position configured to move past the door strike. The latchbolt assembly includes a latchbolt link configured to move the latchbolt in response to movement of the actuator. A first dampening device is disposed adjacent to the latchbolt link, with the dampening device resiliently engaging the latchbolt link as the latchbolt link moves from the retracted position to the extended position. The first dampening device limits movement of the latchbolt link. A second dampening device is configured to restrain movement of the latchbolt during movement from the retracted position to the extended position.

Abstract: A locking device for a door located at a door frame having a door strike. The locking device includes an actuator having a neutral position and a displaced position, and a latchbolt assembly having an extended position configured to engage the door strike, and a retracted position configured to move past the door strike. The latchbolt assembly includes a latchbolt link configured to move the latchbolt in response to movement of the actuator. A first dampening device is disposed adjacent to the latchbolt link, with the dampening device resiliently engaging the latchbolt link as the latchbolt link moves from the retracted position to the extended position. The first dampening device limits movement of the latchbolt link. A second dampening device is configured to restrain movement of the latchbolt during movement from the retracted position to the extended position.

Abstract: The subject technology provides for converting natural language input to structured queries. The subject technology receives a user input query in a natural language format. The subject technology determines scores for candidate entities derived from the user input query. The subject technology selects an entity with a highest score among the candidate entities, and converts, using a context-free grammar, the user input query to a structured query based at least in part on the selected entity. The subject technology classifies the structured query to an expected answer type, the expected answer type corresponding to a type of an expected answer of the structured query. The subject technology queries a database based on the expected answer type and the structured query, the database including information corresponding to a knowledge graph. The subject technology provides, for display, an answer to the user input query based on a result of querying the database.

Abstract: A method and apparatus that generates a plurality of ranked query results from a query over a plurality of separate search domains. In this embodiment, the device receives the query and determines a plurality of results across the plurality of separate search domains using the query. The device further characterizes the query. In addition, the device ranks the plurality of results based on a score calculated for each of the plurality of results determined by a corresponding search domain and the query characterization, where the query characterization indicates a query type.

Abstract: Techniques of workload deployment in a computing network are described. For example a computing system may receive a workload deployment request for deployment of a workload on resources of the computing network. The computing system may determine unavailability of interoperable resources for deployment of the workload, based on interoperability information associated with each of the resources, and identify at least one set of resources for deployment of the workload, where deploying the workload on each set of resources from amongst the at least one set of resources comprises changing configuration of at least one resource included within corresponding set of resources. The computing system may further rate each of the set of resources based on deployment parameters, and select a first set of resources from amongst the at least one set of resources for deployment of the workload based on the rank of each of the set of resources.

Abstract: The subject technology provides for converting natural language input to structured queries. The subject technology receives a user input query in a natural language format. The subject technology determines scores for candidate entities derived from the user input query. The subject technology selects an entity with a highest score among the candidate entities, and converts, using a context-free grammar, the user input query to a structured query based at least in part on the selected entity. The subject technology classifies the structured query to an expected answer type, the expected answer type corresponding to a type of an expected answer of the structured query. The subject technology queries a database based on the expected answer type and the structured query, the database including information corresponding to a knowledge graph. The subject technology provides, for display, an answer to the user input query based on a result of querying the database.

Abstract: A locking device for a door located at a door frame having a door strike. The locking device includes an actuator having a neutral position and a displaced position, and a latchbolt assembly having an extended position configured to engage the door strike, and a retracted position configured to move past the door strike. The latchbolt assembly includes a latchbolt link configured to move the latchbolt in response to movement of the actuator. A first dampening device is disposed adjacent to the latchbolt link, with the dampening device resiliently engaging the latchbolt link as the latchbolt link moves from the retracted position to the extended position. The first dampening device limits movement of the latchbolt link. A second dampening device is configured to restrain movement of the latchbolt during movement from the retracted position to the extended position.

Abstract: A control system for a hydraulic hammer is provided. The control system includes a sensing unit configured to sense position and rebound acceleration of a piston of the hydraulic hammer. The control system further includes an electronic control module (ECM) in communication with the sensing unit, and configured to generate signals based on the sensed position and rebound acceleration of the piston. The control system further includes a selection unit configured to allow an operator to select between a manual mode and an automatic mode. The control system further includes a valve in communication with the electronic control module (ECM). The valve being configured to be operated between a closed position and an open position based on the signals generated by the electronic control module (ECM) to selectively move the piston.

Abstract: Techniques of workload deployment in a computing network are described. For example a computing system may receive a workload deployment request for deployment of a workload on resources of the computing network. The computing system may determine unavailability of interoperable resources for deployment of the workload, based on interoperability information associated with each of the resources, and identify at least one set of resources for deployment of the workload, where deploying the workload on each set of resources from amongst the at least one set of resources comprises changing configuration of at least one resource included within corresponding set of resources. The computing system may further rate each of the set of resources based on deployment parameters, and select a first set of resources from amongst the at least one set of resources for deployment of the workload based on the rank of each of the set of resources.

Abstract: A fork assembly for a lifting machine is provided. The fork assembly includes a fork base and a tine member. A first end of the fork base is attachable to the movable frame portion. A second end of the fork base extends outwardly from the first end. The fork base defines a lift surface, a first side surface, and a second side surface. The tine member defines a top portion, a first side portion, a second side portion, and a bottom portion. The bottom portion of the tine member defines a recess with a first engagement wall, a second engagement wall, and a third engagement wall. The tine member attains an interlocked position with the fork base, when the fork base is disposed within the recess of the tine member.

Abstract: A hammer tool assembly for a machine is provided. The hammer tool assembly includes a power cell, a tool, and a frame assembly. The frame assembly includes a first side plate and a second side plate. A set of paired blocks are coupled to an inner wall of the first and second side plates respectively. Each of the set of paired blocks includes a plurality of holes configured to receive dowel pins therein. A plurality of mechanical fasteners received through a plurality of openings at any one of the first and second side plates. The plurality of openings of each of the first and second side plates is coaxially aligned with corresponding holes in each of the set of paired blocks respectively. A plurality of mechanical fasteners passes through the aligned holes and extends through the plurality of openings provided at the other of the second and first side plates.

Abstract: A method and apparatus that generates a plurality of ranked query results from a query over a plurality of separate search domains. In this embodiment, the device receives the query and determines a plurality of results across the plurality of separate search domains using the query. The device further characterizes the query. In addition, the device ranks the plurality of results based on a score calculated for each of the plurality of results determined by a corresponding search domain and the query characterization, where the query characterization indicates a query type.

Abstract: A method and apparatus for collecting and analyzing cellular identification (ID) numbers at various geographic locations to estimate cellular tower locations. The method may include collecting cellular ID numbers obtained by collection mobile devices at a plurality of geographic locations then calculating minimum bounding circles encompassing a set of geographic location points with the same cellular identification numbers. If the cellular ID number of a set of location points indicates that the cellular tower is omni-directional, a center of the minimum bounding circle is an estimated cellular tower location. If the cellular ID number indicates that the cellular tower is multi-sector, the apparatus may calculate the estimated cellular tower location as the location at which lines that extend from the centers of a plurality of related minimum bounding circles intersect with each other to form equal angles.

Abstract: A method and apparatus for collecting and analyzing cellular identification (ID) numbers at various geographic locations to estimate cellular tower locations. The method may include collecting cellular ID numbers obtained by collection mobile devices at a plurality of geographic locations then calculating minimum bounding circles encompassing a set of geographic location points with the same cellular identification numbers. If the cellular ID number of a set of location points indicates that the cellular tower is omni-directional, a center of the minimum bounding circle is an estimated cellular tower location. If the cellular ID number indicates that the cellular tower is multi-sector, the apparatus may calculate the estimated cellular tower location as the location at which lines that extend from the centers of a plurality of related minimum bounding circles intersect with each other to form equal angles.