Abstract: A method and apparatus for particle counting and wavelength or angle performed in combination in order to characterize an aerosol is disclosed. In one example, data regarding particle counting (such as from an optical particle sensor) and data regarding angle or wavelength (such as from an ensemble measurement sensor) may be separately generated, with the separately generated data being analyzed in combination in order to characterize the aerosol. In another example, data regarding particle counting and regarding angle or wavelength may be generated in combination in order to characterize the aerosol.

Abstract: Systems, apparatuses, and methods for monitoring an environment are provided. One system includes a monitoring unit positioned within an environment and including an acoustic sensor configured to generate detected acoustic data regarding acoustics in the environment, and a controller having one or more processors and one or more non-transitory memory devices that store instructions for controlling the one or more first processors to receive and store the detected acoustic data, determine, based on the detected acoustic data, whether a noise is above a threshold, and determine, based on the detected acoustic data and that the noise is above the threshold, an estimated source of the noise.

Abstract: A method and apparatus for particle counting and wavelength or angle performed in combination in order to characterize an aerosol is disclosed. In one example, data regarding particle counting (such as from an optical particle sensor) and data regarding angle or wavelength (such as from an ensemble measurement sensor) may be separately generated, with the separately generated data being analyzed in combination in order to characterize the aerosol. In another example, data regarding particle counting and regarding angle or wavelength may be generated in combination in order to characterize the aerosol.

Abstract: Systems, apparatuses, and methods for monitoring an environment are provided. These systems, apparatus, and methods may include a monitoring unit positioned within the environment that includes an air quality sensor configured to generate particle data, a communications unit configured to directly or indirectly transmit data between the monitoring unit and a remote computing unit, and a controller with instructions to cause the air quality sensor to generate particle data about particles in the environment, and transmit the particle data to the remote computing unit. The remote computing unit may be positioned outside the environment, and include a second processor, another communications unit, and another non-transitory memory device with instructions to receive and store the particle data, and determine, based on the received particle data generated by the air quality sensor, whether a first exposure threshold has been exceeded for the monitoring unit.

Abstract: A precursor solution composition is provided for making highly pure, fine barium-containing silicate glass powders and specifically barium aluminoborosilicate (BABS) glass powders. An atomized precursor solution containing colloidal silica, a water soluble source of barium, boric acid, and aluminum nitrate is used to make the powders. After mixing, the liquid precursor solution is formed into fine droplets, classified for size, and pyrolyzed into fine powders. The resulting spherical particles of the BABS glass is in the 0.1 to 10 micrometer size range.

Abstract: An economical process and associated hardware for commercial manufacture of controllable submicrometer size metallic powders for electronic and other applications. The method is based on the preparation of a stable high concentration precursor solution, production of a high density aerosol mist of the precursor solutions, selection of mist droplets with upper and lower size bounds, controlled drying of the droplets, their conversion to metallic powder in a high temperature gaseous atmosphere and the separation of the powders from carrier gases without significant loss inside the process hardware.

Abstract: A pulsating release composition comprising natural microspheres, such as pollen grains or spores, into which are loaded a biologically active is subsequently releasable therefrom in a predetermined location in or on a plant or animal in a series (generally 3 or more) of pulses. In one preferred embodiment, the composition comprises a group of substantially similar loaded micropheres coated with multiple barrier layers alternating with multiple active substance layers in a concentric onion-like structure, the barrier layers being slowly soluble to delay release of active substance from the underlying layer thereof until after the pulse of active substance provided by the overlying layer has subsided.

Abstract: The disclosure relates to an art medium which is readily moldable, has substantially the same feel as clay, can provide aesthetic exterior surfaces without additional processing steps, can be worked by standard metal working tools, such as drills, etc. and results in a metal end product. Briefly, the above is accomplished by homogeneously mixing together a powdered metal which is sinterable and a plasticizer. This composition is mixed together with a liquid, preferably water in sufficient quantity to provide the consistency desired by the user, the same as when operating with clay. Water is added during molding to replace that which evaporates to maintain the desired consistency. The powdered metal has an average particle size of from about 10 microns down to about 0.1 micron. The ratio by weight of powdered metal to plasticizer is from about 97% to about 91% powdered metal and from about 3% to about 9% plasticizer. A preferred ratio by weight is 95% powdered metal and 5% plasticizer.

Abstract: Liquid sampling apparatus including a sampling head incorporating a floating pressure seal effected by a positive pressure introduced into an open top sample container in which the sampling head is telescopically introduced. The liquid sampling apparatus includes a compartment having at least an entrance, a cover slidable within said compartment and the sliding cover carrying the sampling head. The sliding cover has a depending shield capable of closing off the entrance to the compartment when the assembly head is therein introduced.The floating pressure seal is defined by a mounting ring seated in a suitable passageway formed in the cover. The mounting ring has a central aperture and a plunger is slidable within said aperture, one end of the plunger being threaded and having an adjusting ring threadably engaged thereupon for limiting the extent of free movement of the plunger relative to the mounting ring. The other end of the plunger has an enlarged head or piston.