A diagnostic method for diagnosing a malfunction of a solenoid valve includes: a) storing reference features of a solenoid current waveform, b) detecting features of the solenoid current waveform during operation of the solenoid valve, c) comparing the reference features with the detected features, d) comparing the pressure value of fluid entering the solenoid valve inlet orifice with a predetermined range of pressure values in the event of deviation between the value of the detected features and the value of the reference features, e) adjusting the pressure value and repeating steps b) and c) in the case of deviation of the pressure value with respect to the pressure value range, and f) generating an alarm signal due to malfunction of the solenoid valve in the event of a deviation between the value of the detected features and the value of the reference and fluid pressure features within the pressure value range.

The present systems and methods relate to a hand sanitizer system that includes a proximity detector, a dispensing system and an alarm feature, and is operative to identify potentially high risk hygiene situations corresponding to a person in proximity of the system failing to dispense antiseptic or other solution from the dispenser within a predetermined period of time after moving within a predetermined range of the detector.

A microchip is provided that includes a flow path through which a liquid containing a micro particle flows, an orifice through which the liquid flowing through the flow path is discharged into a space outside the microchip, and a light-irradiated portion provided at a predetermined location of the flow path and configured to be irradiated with light. A width of the flow path and a depth of the flow path at the orifice are set to be smaller than a width of the flow path and a depth of the flow path at the light-irradiated portion, and the flow path is configured to gradually decrease from upstream of the orifice in a cross-section area perpendicular to a liquid-delivering direction between the light-irradiated portion and the orifice. A cartridge including the microchip is also provided.

The present application discloses novel systems for conducting the filtration of blood using manifolds. The manifolds integrate various sensors and have fluid pathways formed therein to direct fluids from various sources through the requisite blood filtration or ultrafiltration system steps.

A multiply-redundant system that prevents a driver from starting and/or moving a vehicle if a compressed natural gas fill system is not correctly and completely disconnected from the vehicle. One or more sensors in combination with one or more optional microswitches combine to lock-out the vehicle's ignition or otherwise prevent it from starting and/or moving. For different levels of safety, different combinations of sensors can be used with the lowest level having a single proximity sensor sensing the presence or absence of a high-pressure fill hose. The highest level of safety being achieved by having separate proximity sensors on the fuel fill hose fitting, the gas cap cover and a manual safety valve along with a redundant microswitch. An optional override that may be restricted as to the number of times it can be used can allow starting with a faulty sensor in order to allow maintenance.

The present systems and methods relate to a hand sanitizer system that includes a proximity detector, a dispensing system and an alarm feature, and is operative to identify potentially high risk hygiene situations corresponding to a person in proximity of the system failing to dispense antiseptic or other solution from the dispenser within a predetermined period of time after moving within a predetermined range of the detector.

A hydronic distribution system includes self-regulating valves networked together and operable to share valve temperature and valve position information with a microprocessor or other type of controller. The microprocessor runs one or more algorithms that process the temperatures and positions of the valves and then computes a desired speed for one or more variable speed pumps within the system. Controlling the pumps to operate at the desired speed and still maintain the correct amount of process fluid flow needed by the system reduces the overall energy use of the hydronic distribution system, saves on the operational lives of the pumps, and increases system efficiency.

The present systems and methods relate to a hand sanitizer system that includes a proximity detector, a dispensing system and an alarm feature, and is operative to identify potentially high risk hygiene situations corresponding to a person in proximity of the system failing to dispense antiseptic or other solution from the dispenser within a predetermined period of time after moving within a predetermined range of the detector.

A flow imaging and monitoring system for synchronized management of wide area drainage that includes an interposer for supporting monitoring and management equipment in a manhole, a module for illuminating water flowing in pipes at the base of the manhole, a module for monitoring responses to reflected light, a sealed and rechargeable battery pack, and a data analysis and management system to interpret data streams in real time. The interposer can be adjusted to fit the diameter of the manhole and can be adjusted to be placed under the manhole cover. The module for illuminating the flowing water can be adjusted to generate various frequencies. The support structures for the modules can be adjusted for varying pitch, roll and yaw with respect to the manhole. The data analysis and management system is supported by cloud computing.

Systems, methods, and devices are described for providing a fluid control means for an inflation system. The control directs fluid flow from an inlet to one or more outlets of the control. The outlets are independently connected in fluid communication with the inlet by through the control. The control allows a user to create a fluid path between the inlet and a selected outlet by positioning the control in an orientation corresponding to the desired outlet. Each outlet is independently connected in fluid communication with the inlet in various orientations of the control.