5922results about "Flow properties" patented technology

Method and apparatus for providing a leak detection circuit for data monitoring and management system using the guard trace of a glucose sensor by applying a leak detection test signal to determine whether a leakage current is present is provided. The leak detection circuit may includes an interface circuit such as a capacitor coupled to the guard trace to detect the leakage current when the leak detection test signal is applied to the guard trace, such that the user or patient using the data monitoring and management system such as glucose monitoring systems may be promptly and accurately notified of a failed sensor, and to alert the user to replace the sensor.

Redox flow devices are described in which at least one of the positive electrode or negative electrode-active materials is a semi-solid or is a condensed ion-storing electroactive material, and in which at least one of the electrode-active materials is transported to and from an assembly at which the electrochemical reaction occurs, producing electrical energy. The electronic conductivity of the semi-solid is increased by the addition of conductive particles to suspensions and / or via the surface modification of the solid in semi-solids (e.g., by coating the solid with a more electron conductive coating material to increase the power of the device). High energy density and high power redox flow devices are disclosed. The redox flow devices described herein can also include one or more inventive design features. In addition, inventive chemistries for use in redox flow devices are also described.

A method for determining a burst pipe that requires immediate feeding-valve closing using acoustic and / or vibration sensors coupled to the pipe lor detecting signals, a microprocessor for analyzing signals from said sensors in real-time, a memory coupled to said microprocessor for storing data, including digital signatures acoustic and / or vibration signatures, as well as an actuator electrically coupled to said microprocessor and mechanically coupled to said feeding-valve. When the sensor signals match stored leak-signatures or when a persistent sensor signal produces no match, the system of the present invention initiates a valve closing. To improve detection, signals from other sensors, i.e. water sensors, smoke detectors, heat sensors or acoustic / vibration sensors mounted on other pipes are also used. Some of the said systems have IP addresses and can communicate over the Internet or wirelessly with others.

The invention is an automated robotic system for the production and testing of formulations at a very high throughput. It is an integrated system of hardware and software capable of preparing and evaluating hundreds of emulsions per day. The system can formulate aqueous solutions (SL), oil in water emulsions (EW), suspo-emulsions (SE), micro capsule suspensions (CS), micro-emulsions (ME), and suspension concentrates (SC) at the 1 ml to 25 ml scale. The system can process emulsions rapidly in an automated way and enable very flexible formulation recipes to be introduced. The system allows chemists to generate experimental samples of varying recipe and method to be conducted in parallel with projected throughput of up to 1200 formulations processed and characterized per day. Materials and consumables can be distributed from storage storage systems to the work stations where dispensing of ingredients in various states can be performed, including solids, liquids, gels, pastes, suspensions and waxes. The emulsions formed can be characterized using methods including phase diagnosis, turbidity analysis, viscosity and particle sizing using automated test equipment. An integrated module can also perform Tank Mix Compatibility testing in high throughput mode. The modular system allows future processes and tests to be added, either to a station, or as a new station. The software capability includes tracking of processes from start to finish and the integration of analytical data with the as-designed and as-formulated experimental results.

A system for facilitating pipeline management, software, and methods are provided. The system includes a pipeline company computer positioned at a pipeline company site to define a pipeline company server, having a processor, memory coupled to the processor to store software and database records therein, a graphical display coupled to the processor for displaying graphical images and a user interface coupled to the processor to provide a user access to manipulate the software and database records, and pipeline information management analyzing software to analyze pipeline management requirements. The system also includes an area network in communication with the server, a remote user computer in communication with the area network, positioned remote from the server at remote site, and positioned to access the pipeline information management analyzing software, and a portable user computer adapted to interface with the area network to access the pipeline information management analyzing software to provide the field user access to the server database.

A method and apparatus are disclosed for determining status of a canister of a topical negative pressure (TNP) system. The method includes the steps of monitoring pressure provided by a pump element of the TNP system, determining at least one characteristic associated with the monitored pressure and determining status of at least one parameter associated with a canister of the TNP system responsive to the determined characteristics.

A method for locating gas leaks from underground gas pipelines in which a first acoustic sensor having a first signal output is positioned in ground disposed substantially above or at a distance from the underground gas pipeline. At least one second acoustic sensor having a second signal output is positioned in the ground at a plurality of locations substantially above the underground gas pipeline. The output signals from the acoustic sensors are measured for each location of the second acoustic sensor and the signals are adaptively filtered to remove common noise signal components. The statistical minima of these rms voltages are determined for both the first output signal and the adaptively filtered second output signals and the differences determined. The location of the second acoustic sensor corresponding to the largest positive said difference is the location closest to the leak site.

A flow cytometry apparatus and methods to process information incident to particles or cells entrained in a sheath fluid stream allowing assessment, differentiation, assignment, and separation of such particles or cells even at high rates of speed. A first signal processor individually or in combination with at least one additional signal processor for applying compensation transformation on data from a signal. Compensation transformation can involve complex operations on data from at least one signal to compensate for one or numerous operating parameters. Compensated parameters can be returned to the first signal processor for provide information upon which to define and differentiate particles from one another.