摘要:
An elasticity measuring system determines tissue displacement between a pre-deformation and post-deformation image by a matching process using a cost function accepting as its arguments continuity of the tissue motion and correlation of the tissue in making the block matching. The invention allows the selection among different cost functions for different imaging situations or tissue types, to provide improved displacement calculations using a priori knowledge about the tissue and structure of tissue interfaces or information derived during the scanning process.
摘要:
The identification of preferred seed calculations used to guide the determination of displacement vectors in elasticity imaging may evaluate seeds using a combination of a measure of the similarity of the data of the seed in pre- and post-compression data and continuity of the data in a path in the neighborhood of the seed. This dual evaluation helps avoid downstream error propagation.
摘要:
A method of optimized design of an HVAC air-handling assembly for a climate control system on a vehicle includes the steps of generating a basic design of the HVAC air-handling assembly and analyzing a performance of the basic design of the HVAC air-handling assembly using an engineering analytical technique. The method also includes the steps of varying the basic design of the HVAC air-handling assembly based on the performance analysis and using the optimized basic design of the HVAC air-handling assembly in generating the HVAC air-handling assembly design.
摘要:
A method for designing a HVAC air handling assembly for a climate control system on a vehicle includes the step of selecting an architecture for the HVAC air handling assembly from a library stored in a memory of a computer system and selecting a HVAC component part from the library. The method also includes the step of generating a HVAC design using the HVAC architecture and the HVAC component part, determining if the HVAC design meets a predetermined criteria, and regenerating the HVAC design if the predetermined criteria is not met.
摘要:
A plunger apparatus, comprising: a plunger body able to travel within the tubular string; a flow channel through the plunger body; an actuatable external seal assembly operatively provided on or within an outer surface of the plunger body; and a plug mechanism mechanically integrated with the plunger body and reversibly moveable between a closed position and an open position with respect to the plunger body and flow channel, the open position configured to permit the passage of a continuous water slug past the plug mechanism and through the flow channel; and wherein the actuatable external seal assembly is actuated between the deployed position when the plug mechanism is operatively in the closed position and the retracted position when the plug mechanism is operatively in the open position.
摘要:
Selective stimulation ports (SSPs), wellbore tubulars that include the SSPs, and methods of operating the same are disclosed herein. The SSPs are configured to be operatively attached to a wellbore tubular and include an SSP body, an isolation device extending within an SSP conduit of the SSP body, a retention device coupling the isolation device to the SSP body, and a sealing device seat. The isolation device is configured to selectively transition from a closed state to an open state responsive to a shockwave, which has greater than a threshold shockwave intensity, within a wellbore fluid that extends within a tubular conduit of the wellbore tubular. The methods include generating the shockwave within the wellbore fluid such that the shockwave has greater than the threshold shockwave intensity. The methods further include transitioning the isolation device from the closed state to the open state responsive to receipt of the shockwave.
摘要:
An elasticity measuring system determines tissue displacement between a pre-deformation and post-deformation image by a matching process using a cost function accepting as its arguments continuity of the tissue motion and correlation of the tissue in making the block matching. The invention allows the selection among different cost functions for different imaging situations or tissue types, to provide improved displacement calculations using a priori knowledge about the tissue and structure of tissue interfaces or information derived during the scanning process.
摘要:
A perforating gun assembly for use in perforating multiple intervals of at least one subterranean formation intersected by a cased wellbore and in treating the multiple intervals using a diversion agent, such as ball sealers. In one embodiment, the apparatus of the present invention comprises a perforating assembly having a plurality of select-fire perforating devices interconnected by connector subs, with each of the perforating devices having multiple perforating charges. The apparatus also includes at least one decentralizer, attached to at least one of the perforating devices, which is adapted to eccentrically position the perforating assembly within the cased wellbore so as to create sufficient ball sealer clearance between the perforating assembly and the inner wall of the cased wellbore to permit passage of at least one ball sealer.
摘要:
In an ultrasound imaging system, a displacement vector is estimated for a pattern of samples throughout an imaged region of interest (ROI) by comparing two successive B-mode frames. The displacement vector is preferably estimated using block matching. Once displacement vectors are estimated for samples throughout the ROI, corresponding strain values are estimated, which indicate the degree of elasticity of the respective tissue portions. An image is then displayed showing the strain distribution within the ROI as it is stressed, for example, by the user pressing the ultrasound transducer against the patient's body. The invention allows for both real-time and post-processed generation of elasticity displays, even based on the same body of acquired frame data. The real-time display is preferably generated using lower quality block matching whereas the post-processed elasticity calculations are carried out using high-quality techniques. Different techniques are included for adjusting the size and location of the search region of the block matching based on different measures of reliability of current displacement estimates.
摘要:
A multi-zone temperature control system for an HVAC air-handling assembly in a climate control system on a vehicle includes a cold air supply duct and a hot air supply duct operatively coupled to the cold air supply duct. The multi-zone temperature control system also includes a rear air duct operatively coupled to the hot air supply duct and a temperature blend door disposed within the hot air supply duct to adjust a temperature of air flowing through the rear air duct into the vehicle.