Abstract: A method, system and apparatus for sensing fluids. A fluid sensor is configured to analyze a fluid utilizing impedance spectroscopy. Capacitive impedance of fluids is sensed and measured. Inductive impedance of suspended particles in fluids is measured. An electrochemical fingerprint of the properties of the fluid or of the particles within the fluid is generated. Fluid analytics data is generated from sensor signal data of the fluids under test. Trainable artificial intelligence algorithms are used to generate fluid analytics data.

Abstract: A method, system and apparatus for sensing fluids. A fluid sensor is configured to analyze a fluid utilizing impedance spectroscopy. Capacitive impedance of fluids is sensed and measured. Inductive impedance of suspended particles in fluids is measured. An electrochemical fingerprint of the properties of the fluid or of the particles within the fluid is generated. Fluid analytics data is generated from sensor signal data of the fluids under test. Trainable artificial intelligence algorithms are used to generate fluid analytics data.

Abstract: A respiratory conduit has a hollow tube having an inlet, an outlet, a longitudinal axis, and defining a fluid flow path. Along at least a length of the tube, an outer surface of the tube has alternate ridges and grooves. The respiratory conduit also has a sheath surrounding at least a portion of the length of the tube, the sheath has alternate attachment portions and bridging portions. The attachment portions contact the ridges of the tube. The bridging portions extend across the grooves of the tube. Each bridging portion has a span length being the distance in the longitudinal direction between adjacent attachment portions, and a depth being the maximum distance in a radial direction between a point on the bridging portion and a point on one of the adjoining attachment portions. The depth of the bridging portion is greater than zero.

Abstract: A flooring truss system is disclosed for carrying sub-flooring materials such as a radiant heat source. A plurality of truss members carry a deck, foam, concrete, and tubing.

Abstract: A sandwich type acoustical panel comprising a fibrous matrix, a diaphragmatic plastic skin overlying the matrix, a perforated metal face sheet spaced from the plastic skin, and means disposed between the metal sheet and plastic skin creating an air space therebetween. The space permits sound-activated air to be distributed over the plastic skin.