Abstract: Disclosed is a dual-stage fluidics system that has reduced pulsation. This system uses inexpensive peristaltic pumps and two reservoirs that dampen pulsations in pressure. Peristaltic pumps are used as air pressure pumps and sheath fluid pumps that are placed between the two pressurized reservoirs and isolate the two reservoirs. Since the two reservoirs are maintained at a substantially even pressure, pulsations are reduced so that the peristaltic pumps essentially provide air flow and sheath fluid flow as needed.

Abstract: Disclosed is a system for use in a flow cytometer for unclogging obstructions in a nozzle from salt crystal formations and clumps of cells or debris. A nozzle system is moved to a docking station so that a nozzle tip is seated in the docking station. Deionized water is pushed through the nozzle in a reverse direction to a waste port so that the nozzle is flushed. The nozzle system can remain in the docked position during nonuse so that salt crystals do not form in or on the nozzle.

Abstract: Disclosed is a dual-stage fluidics system that has reduced pulsation. This system uses inexpensive peristaltic pumps and two reservoirs that dampen pulsations in pressure. Peristaltic pumps are used as air pressure pumps and sheath fluid pumps that are placed between the two pressurized reservoirs and isolate the two reservoirs. Since the two reservoirs are maintained at a substantially even pressure, pulsations are reduced so that the peristaltic pumps essentially provide air flow and sheath fluid flow as needed.

Abstract: Improved facial recognition tracking of individuals throughout a space is provided, as is identification of unexpected behavior. The system can configure itself upon setup and adjust to changing conditions, and is able to intelligently reduce the workload on the facial recognition system. Cameras are placed throughout a building and learn what typical traffic within the building looks like. Over time, the system can track multiple users throughout the system and can automatically learn the average time between cameras. A probability function for each camera can also be determined that give probabilities for each camera to camera path. This approach provides for both limiting the bandwidth and processing power required for facial recognition and also allows for behavioral analysis. This system could be implemented as a distributed system of cameras, each performing its own facial recognition and tracking, and/or with distributed cameras combined with central processing for facial recognition.

Abstract: Environmental containment methods (16) for a flow cytometer (21) which provides an adjustably controllable environment in which biological particles can be differentiated and droplets separated into collection containers (15).

Abstract: A environmental containment system (16) for a flow cytometer (21) which provides a adjustably controllable environment in which biological particles can be differentiated and droplets separated into collection containers (15).

Abstract: A environmental containment system (16) for a flow cytometer (21) which provides a adjustably controllable environment in which biological particles can be differentiated and droplets separated into collection containers (15).