Abstract:
A connector for tie back liners has a tubular housing having at least one interior locking dog window. A setting chamber having a setting piston is located in the housing. A retraction chamber is in the housing, spaced axially from the setting chamber and having a retracting piston. Locking dogs are movably coupled in the locking dog window and axially spaced between the setting chamber and the retraction chamber. An actuating sleeve has a cam surface in engagement with the locking dogs and end portions with the setting piston and the retracting piston. Linking elements are in engagement with the locking dogs and a load shoulder located in the housing. The linking elements extend through linking element windows in the actuating sleeve. A shock absorber on the end of the housing absorbs shock when the connector lands on a wellhead.
Abstract:
A system and method for regulating data transmission between a source node and a destination node is disclosed herein. The present method contemplates monitoring system performance so as to detect when the system enters an overloaded state. Such detection may be effected by, for example, determining the extent of the time interval during which instructions are retained in a queue at the destination node awaiting execution. When this interval exceeds a maximum queuing time, the system is deemed to be in an overloaded state. Upon entry into an overloaded state, data transmission from the source node is suspended pending recovery of the system from the overloaded state. In a preferred implementation, overload probe messages are periodically inserted into a message queue at the destination node. When such an overload probe message is determined to have been retained in the message queue in excess of the maximum queuing time, the system is deemed to be in an overloaded state and data transmission is suspended as described above. If it is subsequently determined that an overload probe message has been retained in the message queue for less than the maximum queuing time, data transmission from the source node is resumed.
Abstract:
A method of enabling remote booting of a remote boot client in a switched network defining a plurality of virtual local area networks (VLANs). The switched network may include a first trunking aware switch, a first remote boot client and a remote boot server and the method may include setting a first port of the first trunking aware switch to a first mode in which traffic received on the first port set in the first mode is directed to a first predetermined native VLAN of the plurality of VLANs; receiving a request for remote boot from the first remote boot client on the first port of the first trunking aware switch, the first port being set in the first mode; directing the request for remote boot from the first trunking aware switch to a second port of the remote boot server, the second port being configured to receive traffic on the first predetermined native VLAN; receiving selected files from the remote boot server on the first predetermined native VLAN and forwarding the received files to the first remote boot client on the first predetermined native VLAN, the selected files being operative to enable the first remote boot client to initiate loading and booting a selected operating system, and switching the first port of the first trunking aware switch from the first mode to a second mode that enables the first remote boot client to specify one of the plurality of VLANs and to send traffic to the first trunking aware switch on the specified one of the plurality of VLANs.
Abstract:
Partition coefficients for solutes in solvent-water systems are estimated based on corresponding values for the octanol-water system. The estimation of the partition coefficient includes correction factors based on the nature of the solute and the solvent. Petroleum fractions are an example of a suitable solvent for which a partition coefficient can be estimated, although other types of solvents can be used in developing a model for use in the estimation.
Abstract:
Systems and methods for measuring noise exposure associated with use of a wireless headset are presented. In one example, a transition from a wireless headset standby mode operation to a wireless headset active mode operation is identified. A stored noise dose measurement at the wireless headset is recalled, and a current noise dose measurement is calculated at the wireless headset for a duration of the active mode operation. A transition from the wireless headset active mode operation to the wireless headset standby mode operation is identified, and an updated noise dose measurement is recorded at the wireless headset.
Abstract:
A method of enabling remote booting of a remote boot client in a switched network defining a plurality of virtual local area networks (VLANs). The switched network may include a first trunking aware switch, a first remote boot client and a remote boot server and the method may include setting a first port of the first trunking aware switch to a first mode in which traffic received on the first port set in the first mode is directed to a first predetermined native VLAN of the plurality of VLANs; receiving a request for remote boot from the first remote boot client on the first port of the first trunking aware switch, the first port being set in the first mode; directing the request for remote boot from the first trunking aware switch to a second port of the remote boot server, the second port being configured to receive traffic on the first predetermined native VLAN; receiving selected files from the remote boot server on the first predetermined native VLAN and forwarding the received files to the first remote boot client on the first predetermined native VLAN, the selected files being operative to enable the first remote boot client to initiate loading and booting a selected operating system, and switching the first port of the first trunking aware switch from the first mode to a second mode that enables the first remote boot client to specify one of the plurality of VLANs and to send traffic to the first trunking aware switch on the specified one of the plurality of VLANs.