A method for collecting and testing particulates from aircraft air is disclosed. The method includes capturing particulates in at least one of an outlet flow path or a recirculation flow path with a collector over a period of time, removing the collector from at least one of the outlet flow path or the recirculation flow path for testing, concentrating the collected sample, conducting a test on at least one particulate captured in the collector, relaying a result of the test to a central data center to store the results, and identifying a previously non-described emerging pathogens within the results.

A system for monitoring aircraft air including a vessel having an inlet, a conical main body for extracting particles from the air coating an inner surface on the conical main body, and an outlet, wherein the outlet is to be positioned within at least one of an outlet flow path or a recirculation flow path of an aircraft, and at least one of an outflow valve positioned in the outlet flow path downstream from the collector or a HEPA filter positioned in the recirculation flow path downstream from the collector.

A system for monitoring aircraft air including a collector for collecting particulate samples positioned within at least one of an outlet flow path or a recirculation flow path of an environmental control system of an aircraft, wherein the collector is accessible to a user within the cabin of the aircraft.

A system for collecting a biological sample from a passenger cabin includes a collector for collecting particulate samples positioned within at least one of a passenger cabin or a cabin air outflow flow path. A method for collecting particulates from cabin air includes capturing particulates in at least one of a passenger cabin or a cabin air outflow flow path with a collector for a period of time. The method includes removing the collector from at least one of the passenger cabin or air outflow flow path for testing. The method includes placing a clean collector into at least one of the passenger cabin or a cabin air outflow flow path for use during another period of time.

A method for collecting an aircraft cabin representative biological sample from an aircraft HEPA (high efficiency particulate air) filter including collecting a used HEPA filter after flight, transferring the HEPA filter to a remote location, processing the HEPA filter in order to remove an air sample, and concentrating the collected sample to be used on a pathogen identifying tester.

A sensor system for swimming pools and spas is detailed herein. The sensor system can include one or more sensors positioned in a sensor housing located within a cavity of a pipe and in-line with an inlet and an outlet of the pipe. The sensor housing can divert a portion of water flowing through the cavity to an interior of the sensor housing and to an area around the sensors and maintain at least some of the diverted water in the area around the sensors even if the water is not flowing through or is drained from the pipe.

A process water analysis sampling assembly includes an immersion probe having a first filter unit and a second filter unit which are fluidically separated from each other, a flushing liquid tank, and a fluidics control. The fluidics control includes a pump arrangement which is fluidically connected to each of the first filter unit and the second filter unit, at least two liquid pumps which are arranged to be mutually independent from each other, and a valve arrangement having plurality of switchable valves. The fluidics control controls a sampling and a flushing of the immersion probe. The fluidic control fluidically connects the flushing liquid tank to one of the first filter unit and the second filter unit and simultaneously connects an analysis unit to the other one of the first filter unit and the second filter unit.

Methods and systems are provided for treating the tail gas stream of a sulfur recovery plant. The methods including generating a tail gas stream from a sulfur recovery plant, treating the tail gas stream with a hydrogen sulfide absorption unit and a hydrogen selective membrane unit, generating a stream low in hydrogen sulfide and a stream rich in hydrogen. The hydrogen sulfide rich stream is recycled to the sulfur recovery unit. The hydrogen selective membrane unit includes a glassy polymer membrane selective for hydrogen over hydrogen sulfide and carbon dioxide.

Methods of evaluating viscous compositions are disclosed. The methods may be used to evaluate degradation levels of lubricants including grease. The methods may include preparing a surface for testing by leveling and flattening a viscous composition, placing a drop of a liquid on the flattened leveled surface, evaluating the observed contact angle between the drop and the surface, and then comparing the observed contact angle to a reference contact angle.

The present invention discloses a system for measuring the mechanical properties of sea floor sediments at full ocean depth. The system includes an overwater monitoring unit and an underwater measurement device, where the underwater measurement device includes an observation platform and a measuring mechanism; the observation platform includes a frame-type body and a floating body, a wing panel, a floating ball cabin, a leveling mechanism, a counterweight, and a release mechanism mounted on the frame-type body; the floating ball cabin seals a circuit system; the leveling mechanism adjusts the underwater measurement device horizontally on the sea floor when the frame-type body reaches the sea floor; the release mechanism discards the counterweight for recovery of the unit after the underwater measurement device completes the underwater operation; the measuring mechanism includes at least one of a cone penetration measuring mechanism, a spherical penetration measuring mechanism, and a vane shear measuring mechanism, or a sampling mechanism.