Abstract: Methods, systems, and computer-readable media for delivery of log records to stateless clients are disclosed. A record delivery system receives, from a client, a first request to read from a persistent log comprising an ordered sequence of records. The first request is associated with a receiver session. The system sends a first set of records to the client and stores a data structure indicating that the first set of records was sent to the client in the receiver session. The system receives, from the client, a second request to read from the persistent log in the receiver session. Based at least in part on the data structure, the system determines a second set of one or more records in the persistent log. The system sends the second set of records to the client.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: A service testing system is disclosed to enable consistent replay of stateful requests on a service whose output depends on the service's execution state prior to the requests. In embodiments, the service implements a compute engine that executes service requests and a storage subsystem that maintains execution states during the execution of stateful requests. When a stateful request is received during testing, the storage subsystem creates an in-memory test copy of the execution state to support execution of the request, and provides the test copy to the compute engine. In embodiments, the storage subsystem will create a separate instance of execution state for each individual test run. The disclosed techniques enable mock execution states to be easily created for testing of stateful requests, in a manner that is transparent to the compute engine and does not impact production execution data maintained by the service.

Abstract: Techniques described herein are directed to, in part, receiving input data from a computing device that includes a data capturing component; receiving, from the computing device, sensor data representing one or more characteristics associated with an interaction between a user and the data capturing component while the input data is being captured; authenticating an account associated with the user based at least in part on the input data and the one or more characteristics; and sending, to the computing device, an indication that the account of the user has been authenticated.

Abstract: A service testing system is disclosed to enable consistent replay of stateful requests on a service whose output depends on the service's execution state prior to the requests. In embodiments, the service implements a compute engine that executes service requests and a storage subsystem that maintains execution states during the execution of stateful requests. When a stateful request is received during testing, the storage subsystem creates an in-memory test copy of the execution state to support execution of the request, and provides the test copy to the compute engine. In embodiments, the storage subsystem will create a separate instance of execution state for each individual test run. The disclosed techniques enable mock execution states to be easily created for testing of stateful requests, in a manner that is transparent to the compute engine and does not impact production execution data maintained by the service.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: A service testing system is disclosed to enable consistent replay of stateful requests on a service whose output depends on the service's execution state prior to the requests. In embodiments, the service implements a compute engine that executes service requests and a storage subsystem that maintains execution states during the execution of stateful requests. When a stateful request is received during testing, the storage subsystem creates an in-memory test copy of the execution state to support execution of the request, and provides the test copy to the compute engine. In embodiments, the storage subsystem will create a separate instance of execution state for each individual test run. The disclosed techniques enable mock execution states to be easily created for testing of stateful requests, in a manner that is transparent to the compute engine and does not impact production execution data maintained by the service.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: A service testing system is disclosed to enable consistent replay of stateful requests on a service whose output depends on the service's execution state prior to the requests. In embodiments, the service implements a compute engine that executes service requests and a storage subsystem that maintains execution states during the execution of stateful requests. When a stateful request is received during testing, the storage subsystem creates an in-memory test copy of the execution state to support execution of the request, and provides the test copy to the compute engine. In embodiments, the storage subsystem will create a separate instance of execution state for each individual test run. The disclosed techniques enable mock execution states to be easily created for testing of stateful requests, in a manner that is transparent to the compute engine and does not impact production execution data maintained by the service.

Abstract: Provided herein is a method for automated control of the gas turbine fuel composition through automated modification of the ratio of fuel gas from multiple sources. The method includes providing first and second fuel sources. The method further includes sensing the operational parameters of a turbine and determining whether the operational parameters are within preset operational limits. The method also adjusting the ration of the first fuel source to the second fuel source, based on whether the operational parameters are within the preset operational limits.

Abstract: A self-guided blossom picker uses a vision system to identify and locate blossoms or inflorescence growing on a plant. The device can be towed by a tractor or it can be self-propelled. Image data captured by the vision system is sent to an machine vision module, which interprets the data and identifies a location of blossom. A controller uses the location data to command a picker to the proper location. A cutter on the picker is actuated to remove the blossom.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: The present disclosure provides a tuning system for tuning the operation of a gas turbine. The system comprises operational turbine controls for controlling operational control elements of the turbine, including at least one of turbine fuel distribution or the fuel temperature. The system also has a tuning controller communicating with the turbine controls. The tuning controller is configured to tune the operation of the turbine in accordance with the following steps: receiving operational data about the turbine, providing a hierarchy of tuning issues, determining whether sensed operational data is within predetermined operational limits and producing one or more indicators. If the operational data is not within predetermined operational limits, the tuning controller will rank the one or more indicators to determine dominant tuning concern, and tune the operation of the turbine based on dominant tuning concern. Also provided herein are a method and computer readable medium for tuning.

Abstract: A stake-cable system for securing wheeled trash bins and lids thereof is provided. The stake-cable system includes a cable connecting an object attachment point associated with the bin or lid and an anchor attachment point affixed to or adjacent to the ground. The stake-cable system also includes quick-release interconnectors between the attachment points and the cable, which may terminate in opposing loops to facilitate such quick-release interconnections.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making the same are disclosed herein. In some embodiments, a battery part includes a body having a base portion and a lug portion extending from the base portion. The battery part can further include a light-curable sealing material at least partially covering an exterior surface of the base portion. The sealing material is configured to seal an interface between the battery part and the material of a battery container when the base portion is embedded in the battery container material.

Abstract: Provided herein is a method for automated control of the gas turbine fuel composition through automated modification of the ratio of fuel gas from multiple sources. The method includes providing first and second fuel sources. The method further includes sensing the operational parameters of a turbine and determining whether the operational parameters are within preset operational limits. The method also adjusting the ration of the first fuel source to the second fuel source, based on whether the operational parameters are within the preset operational limits.

Abstract: Provided herein is a method for automated control of the gas turbine fuel composition through automated modification of the ratio of fuel gas from multiple sources. The method includes providing first and second fuel sources. The method further includes sensing the operational parameters of a turbine and determining whether the operational parameters are within preset operational limits. The method also adjusting the ration of the first fuel source to the second fuel source, based on whether the operational parameters are within the preset operational limits.

Abstract: A stake-cable system for securing wheeled trash bins and lids thereof is provided. The stake-cable system includes a cable connecting an object attachment point associated with the bin or lid and an anchor attachment point affixed to or adjacent to the ground. The stake-cable system also includes quick-release interconnectors between the attachment points and the cable, which may terminate in opposing loops to facilitate such quick-release interconnections.