A method for optimizing pressure exchange includes providing a first pressure exchange system comprising an energy recovery device (ERD). A second system supplies high-pressure fluid, energized by a positive displacement pump, to the ERD. A third system supplies low-pressure fluid to the ERD. The first system energizes the low-pressure fluid with the high-pressure fluid to form a high-pressure fracking fluid, which is delivered from the first system to a well-head. A rate of required flow is input into a control system, which determines a rate of flow of the high-pressure fluid, a rate of flow of the low-pressure fluid, and an actual rate of flow of the fracking fluid at the well-head. The control system then adjusts to equilibrium: the rate of flow of the high-pressure fluid based on the actual rate of flow; and the rate of flow of the low-pressure fluid based on the actual rate of flow.

A method for optimizing pressure exchange includes providing a first pressure exchange system comprising an energy recovery device (ERD). A second system supplies high-pressure fluid, energized by a positive displacement pump, to the ERD. A third system supplies low-pressure fluid to the ERD. The first system energizes the low-pressure fluid with the high-pressure fluid to form a high-pressure fracking fluid, which is delivered from the first system to a well-head. A rate of required flow is input into a control system, which determines a rate of flow of the high-pressure fluid, a rate of flow of the low-pressure fluid, and an actual rate of flow of the fracking fluid at the well-head. The control system then adjusts to equilibrium: the rate of flow of the high-pressure fluid based on the actual rate of flow; and the rate of flow of the low-pressure fluid based on the actual rate of flow.

A method and system for controlling operation of an immersion cooling system to filter a heat transfer fluid having an immersion cooling tank adapted to contain the heat transfer fluid used to immersion cool a heat-generating object contained therein, the method and system comprises: sampling the heat transfer fluid in the tank; measuring at least one property or parameter of the sampled heat transfer fluid; generating and transmitting measurement data to a control unit; comparing measurement data with respective threshold data using the control unit; and filtering the heat transfer fluid with a filter based on the comparison results of the control unit.

A method and system for controlling operation of an immersion cooling system to filter a heat transfer fluid having an immersion cooling tank adapted to contain the heat transfer fluid used to immersion cool a heat-generating object contained therein, the method and system comprises: sampling the heat transfer fluid in the tank; measuring at least one property or parameter of the sampled heat transfer fluid; generating and transmitting measurement data to a control unit; comparing measurement data with respective threshold data using the control unit; and filtering the heat transfer fluid with a filter based on the comparison results of the control unit.

An air pressure-machine vision based system for measuring a rheological property of a viscoelastic material includes a machine body, a lifting experiment table system, an air pressure generation control system, an image collection system, and a controlling and information processing system, where the lifting experiment table system, the air pressure generation control system, the image collection system and the controlling and information processing system are mounted on the machine body; the lifting experiment table system includes a lifting table stepping motor, an L-shaped lifting table and a lifting table motor driver, and the lifting table motor driver is connected to the lifting table stepping motor and configured to drive the lifting table stepping motor; and the lifting table stepping motor is connected to the L-shaped lifting table and configured to control lifting of the L-shaped lifting table.

An air pressure-machine vision based system for measuring a rheological property of a viscoelastic material includes a machine body, a lifting experiment table system, an air pressure generation control system, an image collection system, and a controlling and information processing system, where the lifting experiment table system, the air pressure generation control system, the image collection system and the controlling and information processing system are mounted on the machine body; the lifting experiment table system includes a lifting table stepping motor, an L-shaped lifting table and a lifting table motor driver, and the lifting table motor driver is connected to the lifting table stepping motor and configured to drive the lifting table stepping motor; and the lifting table stepping motor is connected to the L-shaped lifting table and configured to control lifting of the L-shaped lifting table.

The present invention provides a pipette tip, which can be used in in-vitro diagnostics, in particular in the diagnostic testing of body fluids, such as in coagulation testing. The Pipette tip contains two constituents in a spatially separated manner. The present invention furthermore provides a method of performing such diagnostics, e.g. coagulation analysis, and to the use of the pipette tip in such diagnostic testing.

The present invention provides a pipette tip, which can be used in in-vitro diagnostics, in particular in the diagnostic testing of body fluids, such as in coagulation testing. The Pipette tip contains two constituents in a spatially separated manner. The present invention furthermore provides a method of performing such diagnostics, e.g. coagulation analysis, and to the use of the pipette tip in such diagnostic testing.

A device and method for measuring slump of concrete in a hopper feeding a concrete pump. A slump sensor generates a signal from either an ammeter to measure current from a power source feeding an electric motor being configured to rotate an agitator shaft or a pressure gauge configured to measure hydraulic pressure in a hydraulic drive hose passing between a hydraulic pump and a hydraulic motor configured to rotate the agitator shaft. A controlling computer includes a memory in which an operating range may reside, the operating range being a range from a lower slump signal value corresponding to a lower limit of slump value to an upper slump signal value. The controlling computer generates an alert signal when the slump sensor signal falls outside of the operating range. In one embodiment, the controlling computer stops the concrete pump when the alert signal is detected.

A device and method for measuring slump of concrete in a hopper feeding a concrete pump. A slump sensor generates a signal from either an ammeter to measure current from a power source feeding an electric motor being configured to rotate an agitator shaft or a pressure gauge configured to measure hydraulic pressure in a hydraulic drive hose passing between a hydraulic pump and a hydraulic motor configured to rotate the agitator shaft. A controlling computer includes a memory in which an operating range may reside, the operating range being a range from a lower slump signal value corresponding to a lower limit of slump value to an upper slump signal value. The controlling computer generates an alert signal when the slump sensor signal falls outside of the operating range. In one embodiment, the controlling computer stops the concrete pump when the alert signal is detected.