Abstract: Memory elements are provided that exhibit immunity to soft error upset events when subjected to radiation strikes such as high-energy atomic particle strikes. Each memory element may each have four inverter-like transistor pairs that form a bistable element, a pair of address transistors, and a pair of relatively weak transistors connected between two of the inverters that create a common output node which is resistant to rapid changes to its state. The transistors may be connected in a pattern that forms a bistable memory element that is resistant to soft error upset events due to radiation strikes. Data may be loaded into and read out of the memory element using the address transistor pair.

Abstract: A follower for a firearm magazine is provided. In some embodiments, the follower has: a platform shaped to interface with a firearm cartridge; a first side face extending longitudinally from the platform and having a first end opposing the platform; and a second side face extending longitudinally from the platform and having a second end opposing the platform. The first side face and the second side face may define a receiving space for receiving at least a portion of a magazine spring. At least one of the first end and the second end may have a nonlinear profile shaped to translate a lateral spring force into a longitudinal spring force.

Abstract: An accessory mounting interface for a firearm is provided. The accessory mounting interface has a firearm accessory, a first elongated fastener, a second fastener, and an elongated slot in a firearm. The second fastener has two straight edges parallel to each other, and at least one of the two straight edges prevent the second fastener from rotating beyond a closed position once a portion of the second fastener has passed through and at least partially cleared the elongated slot.

Abstract: A padded strap is provided, which comprises a unitary strap member forming a tube and an inserted pad. The unitary strap member has at least two sections, at least one of the sections configured to form a pad casing section which can retain the inserted pad, and the another section comprising a substantially flat section abutting the pad casing section. The area between the pad casing section and the substantially flat section comprises a hollow, tapering transition area. The unitary strap member comprises at least one sealable opening at an end of the unitary strap member. The inserted pad is inserted through the sealable opening and retained in the pad casing section, and the pad is comprised of at least one outer layer of resilient, low-friction material and a cushioning layer.

Abstract: Well pressure control is integrated in real time with geomechanics determinations made during drilling. A well drilling method includes updating determinations of properties of a formation surrounding a wellbore in real time as the wellbore is being drilled; and controlling wellbore pressure in real time as the wellbore is being drilled, in response to the updated determinations of the formation properties. Another well drilling method includes obtaining sensor measurements in a well drilling system in real time as a wellbore is being drilled; transmitting the sensor measurements to a control system in real time; the control system determining in real time properties of a formation surrounding the wellbore based on the sensor measurements, and the control system transmitting in real time a pressure setpoint to a controller; and the controller controlling operation of at least one flow control device, thereby influencing a well pressure toward the pressure setpoint.

Abstract: Systems and methods are described for performing policy-managed, peer-to-peer service orchestration in a manner that supports the formation of self-organizing service networks that enable rich media experiences. In one embodiment, services are distributed across peer-to-peer communicating nodes, and each node provides message routing and orchestration using a message pump and workflow collator. Distributed policy management of service interfaces helps to provide trust and security, supporting commercial exchange of value. Peer-to-peer messaging and workflow collation allow services to be dynamically created from a heterogeneous set of primitive services. The shared resources are services of many different types, using different service interface bindings beyond those typically supported in a web service deployments built on UDDI, SOAP, and WSDL.

Abstract: A drum magazine assembly and methods are described. A drum assembly has a follower assembly, a drum body, a spring assembly, and a feed tower assembly. The follower assembly biases cartridges towards an exit of the feed tower assembly. The follower assembly has a plurality of dummy cartridges, the plurality of dummy cartridges having a leading dummy cartridge and a last dummy cartridge, and a plurality of links including a leading link and a last link. The last dummy cartridge rotates relative to the last link and the leading link, and the leading dummy cartridge has a bolt catch engagement feature.

Abstract: An accessory mounting interface for a firearm is provided. The accessory mounting interface has a firearm accessory, a first elongated fastener, a second fastener, and an elongated slot in a firearm. The second fastener has two straight edges parallel to each other, and at least one of the two straight edges prevent the second fastener from rotating beyond a closed position once a portion of the second fastener has passed through and at least partially cleared the elongated slot.

Abstract: A method for fabricating a joint designed to connect tubes for a space frame, where a space frame may be a vehicle chassis, is provided. The method may generate joints with variable geometry and fine features which may reduce production costs, reduce production time, and generate joints configured for highly specific applications. The joint may include centering features which may create a space between a surface of the tube and a surface of the joint through which adhesive may flow.

Abstract: An improved firearm accessory mounting interface is herein disclosed. The interface can include one or more sets of first and second fasteners that interface through an elongated slot in a firearm in order to mount a firearm accessory to a firearm. The second fastener can be shaped and sized to clear the elongated slot and can, upon clearing the elongated slot, be pivoted to an oblique orientation relative to the elongated slot so that the second fastener cannot be retracted. The first fastener can continue to be turned thus drawing the first and second fasteners toward each other and locking the accessory to the firearm.

Abstract: A training and exercise device is provided to aid in proper positioning, technique, and muscle memory for different sports and exercise related activities. The training device includes a cylindrical barrel member. A sled or sleds are connected to the barrel member such that rotation and movement of the barrel member will in turn move the sled or sleds. The sleds are bi-directional such that they are able to move in both forward and rear directions, which will allow the training device to be used in multiple directions without having to reorient the entire device between exercises. The barrel device, sled or sleds may also be configured to adjust the weights thereof to increase or decrease the resistance of the movement of the training device to accommodate for different user's size, abilities, and intended outcome.

Abstract: An accessory mounting interface for a firearm is provided. The accessory mounting interface has a firearm accessory, a first elongated fastener, a second fastener, and an elongated slot in a firearm. The second fastener has two straight edges parallel to each other, and at least one of the two straight edges prevent the second fastener from rotating beyond a closed position once a portion of the second fastener has passed through and at least partially cleared the elongated slot.

Abstract: Systems and methods are described for performing policy-managed, peer-to-peer service orchestration in a manner that supports the formation of self-organizing service networks that enable rich media experiences. In one embodiment, services are distributed across peer-to-peer communicating nodes, and each node provides message routing and orchestration using a message pump and workflow collator. Distributed policy management of service interfaces helps to provide trust and security, supporting commercial exchange of value. Peer-to-peer messaging and workflow collation allow services to be dynamically created from a heterogeneous set of primitive services. The shared resources are services of many different types, using different service interface bindings beyond those typically supported in a web service deployments built on UDDI, SOAP, and WSDL.

Abstract: Systems and methods are described for performing policy-managed, peer-to-peer service orchestration in a manner that supports the formation of self-organizing service networks that enable rich media experiences. In one embodiment, services are distributed across peer-to-peer communicating nodes, and each node provides message routing and orchestration using a message pump and workflow collator. Distributed policy management of service interfaces helps to provide trust and security, supporting commercial exchange of value. Peer-to-peer messaging and workflow collation allow services to be dynamically created from a heterogeneous set of primitive services. The shared resources are services of many different types, using different service interface bindings beyond those typically supported in a web service deployments built on UDDI, SOAP, and WSDL.

Abstract: A stock for a firearm is disclosed. The stock comprises a stock-to-firearm interface, and a folding stock assembly hingedly coupled to the stock-to-firearm interface. The stock comprises a folded configuration and an unfolded configuration. The stock-to-firearm interface comprises a modifiable firearm mount, a lock catch, a quick detach mount, and one of a detent notch and a detent. The folding stock assembly comprises a buttstock, a lock for engaging the lock catch in the stock-to-firearm interface to selectively maintain the stock in the unfolded configuration, and the other one of a detent and a detent notch. The detent is shaped to engage the detent notch to selectively maintain the stock in the folded configuration. The quick detach mount is shaped to distribute a carry force between a first surface of the stock-to-firearm interface and at least one of a second surface of the stock-to-firearm interface and a firearm.

Abstract: A gunsmithing block is disclosed. The gunsmithing block has a first end for interfacing with a vice, and a second end shaped to interface with an upper receiver assembly of a firearm, the upper receiver assembly having an upper receiver, a bolt carrier without a bolt, and a barrel extension. The second end has an upper receiver mating portion shaped to interface with an interior region of the upper receiver and an interior region of the barrel extension. Methods of using and making a gunsmithing block are also disclosed.

Abstract: A wrench and a method for performing gunsmithing operations is disclosed. The wrench may have a first end and a second end. The first end may have an integrated two-sided castle nut and flash hider wrench aperture, and the second end may have a tool interface. The aperture may have a plurality of raised elements for engaging indentations in a castle nut, each of the raised elements extending at least one of inwardly from a wall section of the aperture and upwardly from a first face of the wrench. The aperture may have a flash hider cutout portion.

Abstract: An accessory mounting interface for a firearm is provided. The accessory mounting interface has a firearm accessory, a first elongated fastener, a second fastener, and an elongated slot in a firearm. The second fastener has two straight edges parallel to each other, and at least one of the two straight edges prevent the second fastener from rotating beyond a closed position once a portion of the second fastener has passed through and at least partially cleared the elongated slot.

Abstract: An improved firearm accessory mounting interface is herein disclosed. The interface can include one or more sets of first and second fasteners that interface through an elongated slot in a firearm in order to mount a firearm accessory to a firearm. The second fastener can be shaped and sized to clear the elongated slot and can, upon clearing the elongated slot, be pivoted to an oblique orientation relative to the elongated slot so that the second fastener cannot be retracted. The first fastener can continue to be turned thus drawing the first and second fasteners toward each other and locking the accessory to the firearm.

Abstract: Circuitry for stochastic computation includes processing nodes, including a first processing node and a second processing node, each configured to process an outcome stream having a plurality of outcomes, each outcome being in one of a plurality of states, wherein an outcome from said outcome stream is in a particular state with a particular probability; communication links configured to transmit outcome streams between pairs of said processing nodes; and a delay module on each of said communication links, said delay module configured to delay outcome streams traversing said communication link by an assigned delay; wherein said first and second processing nodes are connected by a plurality of data paths, at least one of which comprises a plurality of communication links, each of said data paths causing an aggregate delay to an outcome stream traversing said data path; wherein no two aggregate delays impose the same delay on an outcome stream.