A system for designing a circuitry configuration of heat-exchanger units includes an interface to acquire design parameters the heat-exchanger units, a memory to store computer-executable programs including a relaxed decision diagram formation module, and a processor, in connection with the memory, configured to perform the computer-executable programs. The computer-executable programs include steps of providing a configuration of the heat-exchanger units, providing the design parameters of the heat-exchanger units acquired via the interface, generating a relaxed decision diagram based on the design parameters, creating constraints with respect to connections of the heat-exchanger units according to the relaxed decision diagram, and generating feasible configurations of the heat-exchanger units by a mixed-integer-programing method using the constraints.

A system for designing a circuitry configuration of heat-exchanger units includes an interface to acquire design parameters the heat-exchanger units, a memory to store computer-executable programs including a relaxed decision diagram formation module, and a processor, in connection with the memory, configured to perform the computer-executable programs. The computer-executable programs include steps of providing a configuration of the heat-exchanger units, providing the design parameters of the heat-exchanger units acquired via the interface, generating a relaxed decision diagram based on the design parameters, creating constraints with respect to connections of the heat-exchanger units according to the relaxed decision diagram, and generating feasible configurations of the heat-exchanger units by a mixed-integer-programing method using the constraints.

In a system and method of working tubes coupled to a tubesheet having a number of holes, wherein each hole in fluid communication with one of the tubes, an end-effector is positioned by a robot in coarse or rough alignment with a first hole in the tubesheet. Via lasers positioned on the end-effector, laser spots are formed on a surface of the tubesheet adjacent the first hole. The laser spots are detected by a camera and the alignment of the end-effector relative to the first hole in the tubesheet is refined via the robot based on the detected pattern of laser spots. The tool is then moved into the tube that is in fluid communication with the first hole in the tubesheet to work on (inspect, plug, sleeve or weld) the tube.

In a system and method of working tubes coupled to a tubesheet having a number of holes, wherein each hole in fluid communication with one of the tubes, an end-effector is positioned by a robot in coarse or rough alignment with a first hole in the tubesheet. Via lasers positioned on the end-effector, laser spots are formed on a surface of the tubesheet adjacent the first hole. The laser spots are detected by a camera and the alignment of the end-effector relative to the first hole in the tubesheet is refined via the robot based on the detected pattern of laser spots. The tool is then moved into the tube that is in fluid communication with the first hole in the tubesheet to work on (inspect, plug, sleeve or weld) the tube.

The first and second media are coupled via evanescent waves generated by surface phonon polaritons thermally excited on surfaces of the first and second media. First and second media made of the same material are disposed with a gap formed between for cutting off thermal conduction and the heat transfer between them is performed via the thermally excited evanescent waves. A third medium is provided on a surface of the first medium on a side toward the second medium. Heat flux flows from the second medium to the first medium in a first state wherein the second medium has a first temperature T.sub.H and the first medium has a second temperature T.sub.L lower than the T.sub.H differ in intensity from heat flux which flows from the first to the second medium in a second state wherein the first medium has the T.sub.H and the second medium has the T.sub.L.

The first and second media are coupled via evanescent waves generated by surface phonon polaritons thermally excited on surfaces of the first and second media. First and second media made of the same material are disposed with a gap formed between for cutting off thermal conduction and the heat transfer between them is performed via the thermally excited evanescent waves. A third medium is provided on a surface of the first medium on a side toward the second medium. Heat flux flows from the second medium to the first medium in a first state wherein the second medium has a first temperature T.sub.H and the first medium has a second temperature T.sub.L lower than the T.sub.H differ in intensity from heat flux which flows from the first to the second medium in a second state wherein the first medium has the T.sub.H and the second medium has the T.sub.L.

Prosthetic liners, prosthetic sockets and prosthetic suspension sleeves, as well as orthotic components, having enhanced thermally conductivity and/or enhanced heat absorption capabilities. Such components may be used in various combinations to create assemblies and systems that are operative to better transfer heat away from and/or absorb heat produced by residual or intact limbs of a user.

A method for removing a fin fan motor from a heat exchanger includes positioning a motor lifting device beneath the fin fan motor, moving a carriage of the motor lifting device upward in a vertical direction with respect to a base member of the motor lifting device along a vertical guide column, moving one or more vertical support members into a locked position, the one or more vertical support members spaced apart from the vertical guide column and extending between the carriage and the base member, where the one or more vertical support members restrict vertical movement of the carriage with respect to the base member in the locked position, and moving the fin fan motor to the carriage of the motor lifting device.

A method for removing a fin fan motor from a heat exchanger includes positioning a motor lifting device beneath the fin fan motor, moving a carriage of the motor lifting device upward in a vertical direction with respect to a base member of the motor lifting device along a vertical guide column, moving one or more vertical support members into a locked position, the one or more vertical support members spaced apart from the vertical guide column and extending between the carriage and the base member, where the one or more vertical support members restrict vertical movement of the carriage with respect to the base member in the locked position, and moving the fin fan motor to the carriage of the motor lifting device.

A universal mounting mechanism including a mounting bracket configured to mount a liquid-cooling heat exchange apparatus to a substrate or an electronic component and at least one universal fastener assembly is provided. The at least one universal fastener assembly is orthogonally assembled through the mounting bracket. The liquid-cooling heat exchange apparatus includes a first liquid-cooling heat exchange apparatus having a first waterblock set or a second liquid-cooling heat exchange apparatus having a second waterblock set. The first waterblock set has a first block thickness, and the second waterblock set has a second block thickness. The substrate or the electronic component includes receiving portions having a fastened thickness. A thickness of the second block thickness and the fastened thickness is greater than a thickness of the first block thickness and the fastened thickness.