Abstract: A crash attenuation system has an airbag inflatable generally adjacent to an exterior of the aircraft. The system includes a gas generator in fluid communication with an interior of the airbag. The system also includes a vent system having a vent passage supported by the aircraft, the vent passage being configured to allow gas to escape from within the airbag during an impact to a second set of airbags for flotation. The vent system also includes an actuator door for sealing the vent passage, thereby preventing gas from leaving the airbag. The actuator door is actuated by an actuator, the actuator being in fluid communication with the gas generator through an actuator duct. The system operates such that deployment of gas from the gas generator causes the actuator to inflate, thereby causing the actuator door to seal the vent passage. The gas generator is configured to re-inflate the airbag after the actuator door seals the vent passage.

Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.

Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.

Abstract: Presented herein are techniques useful in a network comprising a plurality of network nodes each configured to apply one or more service functions to traffic that passes through the respective network nodes. A network node receives packets encapsulated in a service header that includes information defining a variable set of context headers stacked into an association of metadata that is relevant to one or more service functions within a service path comprised of one or more network nodes. The network node interprets a forwarding state and a next-hop network node for the service path from the service header, and determines a service action or associated metadata from the set of context headers.

Abstract: Disclosed are, inter alia, methods, apparatus, data structures, computer-readable media, mechanisms, and means for supporting a large number of virtual local area networks (VLANS) in a bridged network. Packets are received that include 802.1Q Virtual Local Area Network (VLAN) identifiers (VIDs). However, rather than accessing the VLAN forwarding information directly based on the VID as conventionally performed, the VLAN forwarding information to use for a particular packet is determined based on an interface (e.g., virtual or physical interface, port, MPLS label, GRE tunnel or other abstraction of the interface). In other words, the interface associated with the packet identifies a context for determining the VLAN forwarding information based on the VID included in the packet. Therefore, network bridging devices can support more VLANs than that imposed by the 4096 possible values of a VID.

Abstract: A vibration isolator having an upper housing defining an upper fluid chamber, a lower housing defining a lower fluid chamber, a piston resiliently disposed within the upper housing and the lower housing, a tuning passage defined by the piston, for providing fluid communication between the upper fluid chamber and the lower fluid chamber, a tuning fluid disposed within the tuning passage, the upper fluid chamber, and the lower fluid chamber. A reservoir in fluid communication with the upper fluid chamber for providing pressurization control of the vibration isolator. An expanded accumulator region for providing Increased pressure retention during maintenance and operation of the vibration isolator.

Abstract: Techniques are provided to decouple service chain structure from the underlying network forwarding state and allow for data plane learning of service chain forwarding requirements and any association between services function state requirements and the forward and reverse forwarding paths for a service chain. In a network comprising a plurality of network nodes each configured to apply a service function to traffic that passes through the respective network node, a packet is received at a network node. When the network node determines that the service function it applies is stateful, it updates context information in a network service header of the packet to indicate that the service function applied at the network node is stateful and that traffic for a reverse path matching the classification criteria is to be returned to the network node.

Abstract: A vibration isolator includes a housing having an upper fluid chamber, a lower fluid chamber, a piston, a tuning passage, and a linear inductance motor assembly for changing the isolation frequency of the vibration isolator. The piston is resiliently disposed within the housing. A vibration tuning fluid is located in the upper fluid chamber, the lower fluid chamber, and the tuning passage. The linear inductance motor assembly includes a magnet member and an inductance coil at least partially surrounding the magnet member. A control system is configured to selectively actuate the magnet member; wherein selective actuation of the magnet member selectively imparts a pumping force on the tuning fluid, thereby changing the isolation frequency.

Abstract: A crash attenuation system has an airbag inflatable generally adjacent to an exterior of the aircraft. The system includes a gas generator in fluid communication with an interior of the airbag. The system also includes a vent system having a vent passage supported by the aircraft, the vent passage being configured to allow gas to escape from within the airbag during an impact. The vent system also includes an actuator door for sealing the vent passage, thereby preventing gas from leaving the airbag. The actuator door is actuated by an actuator, the actuator being in fluid communication with the gas generator through an actuator duct. The system operates such that deployment of gas from the gas generator causes the actuator to inflate, thereby causing the actuator door to seal the vent passage. The gas generator is configured to re-inflate the airbag after the actuator door seals the vent passage.

Abstract: A technique for intrusion detection analysis is disclosed. The technique comprises performing a first analysis, wherein the analysis results in a first event; performing a second analysis, wherein the second analysis analyzes the first event; and performing an action associated with the second analysis.

Abstract: A rotor hub and method to dampen a force exerted on a rotor hub by a rotor blade during flight. The rotor hub including a central member rotatably coupled to a rotor mast, a blade grip rigidly attached to a blade and movably coupled to the central member, and an adjustable damper operably associated with the blade grip. The method includes damping the force exerted on the rotor hub with the adjustable damper and selectively adjusting the adjustable damper between a first spring rate and a second spring rate.

Abstract: A pylon mounting system with vibration isolation is provided. The system generally includes a housing that defines a first fluid chamber and a second fluid chamber, a fluid disposed within the fluid chambers; a piston assembly at least partially disposed within the housing, and a tuning passage defined by the piston assembly for providing fluid communication between the fluid chambers. The piston assembly has a first arm and a second arm, and each arm has a tubeform bearing for providing pitch and roll stiffness.

Abstract: A flotation device is described herein. The floatation device comprising an air bladder; a girt coupled to the air bladder; and a load attenuator coupled to the girt. The load attenuator is further coupled to an airframe of an aircraft. The float bag is used in water landings of the aircraft.

Abstract: A system and method is provided for rate limiting network traffic flow of an untrusted application. A master module in a server environment manages network traffic flow restrictions. A slave module executes client applications in the server environment. A services module in the server environment executes a trusted application to validate the client application to the master module. A traffic restriction module on the master module sets network traffic restrictions when validation has not been received for the client application on the slave blade, and receives client application validations from the trusted application to unrestrict network traffic flow for the client application on the slave blade.

Abstract: A method is provided that includes: receiving, by one or more server devices, voice over Internet protocol (VoIP) traffic management rules from a network operations center; gathering, by the one or more server devices, VoIP traffic data from a VoIP network; analyzing, by the one or more server devices, the VoIP traffic data; creating, by the one or more server devices, a ticket based on the VoIP traffic management rules and the VoIP traffic data; and automatically sending, by the one or more server devices, the ticket to the network operations center based on the VoIP traffic management rules.

Abstract: A method and system for best effort propagation of security group information is disclosed. The method includes determining if a reserved group identifier is associated with a destination and, if the reserved group identifier is associated with the destination, indicating that a packet received at a network node can be sent to another network node. The packet includes destination information that identifies the destination as a destination of the packet.

Abstract: A method and apparatus for providing network security using role-based access control is disclosed. A network device implementing such a method can include, for example, an access control list. Such an access control list includes an access control list entry, which, in turn, includes a user group field. Alternatively, a network device implementing such a method can include, for example, a forwarding table that includes a plurality of forwarding table entries. In such a case, at least one of the forwarding table entries includes a user group field.

Abstract: An adjunct network device includes several ports, an uplink interface, and an adjunct forwarding engine coupled to the ports and the uplink interface. A first port is configured to receive a packet, which includes a destination address. The adjunct forwarding engine is configured to send the packet to the uplink interface if the destination address is not associated with any of the ports. The packet is sent to one of the ports if the destination address is associated with the one of the ports.

Abstract: A system and method to control vibrations exerted on a non-vibrating structure. The system includes an adjustable variable stiffness support securely attached to both the non-vibrating structure and a vibrating structure. A driver operably associated with the variable stiffness support is configured to selectively adjust the variable stiffness support. A control system in data communication with both a sensor system and the driver includes an algorithm to determine whether adjustment of the variable stiffness support is required.

Abstract: A system and method to isolate vibrations from a vibrating structure. The system includes an adjustable vibration isolator that creates a reacting force matching the vibratory force of the vibrating structure. The method includes continuously monitoring the reacting force and vibratory force with a sensor system operably associated with a control unit having an algorithm to determine if adjustment of the vibration isolator is required. If required, the control unit commands a driver to selectively adjust the vibration isolator.