Abstract: A method of reducing the hydrogen sulfide content of an influent gas stream comprising oxygenated gas and hydrogen sulfide. An aqueous stream including an available metal chelant and the influent gas stream are contacted using an eductor. The eductor releases an eductor effluent stream including a mixture of sulfur, a first treated gas including a lower concentration of hydrogen sulfide than the influent gas stream, a first unavailable metal chelant, the available metal chelant. The eductor effluent stream is received in a common vessel wherein a plurality of activities may be performed. The plurality of activities includes generating a second treated gas by reducing a metal of the available metal chelant and producing the aqueous stream of the available metal chelant by oxidizing the first or second unavailable metal chelant using the oxygenated gas.

Abstract: A gas treatment system configured to purify an influent gas stream including a hydrocarbon gas and a hydrogen sulfide gas comprises a reduction unit and an oxidation unit. The reduction unit includes at least one eductor configured to contact the influent gas stream with a primary stream including aqueous reducing reagent and release a purified hydrocarbon gas stream and a contacted primary stream including elemental sulfur. The oxidation unit includes at least one eductor configured to contact an oxidizing agent stream and a secondary stream including the primary stream and contacted primary stream and output a regenerated redox reagent stream.

Abstract: A system for classifying wounds is configured to receive an image of a wound, to determine a classification of the wound, and to provide feedback to a user based on the classification of the wound.

Abstract: A method of purifying CO2 from an influent gas stream includes contacting, in an eductor, an acid gas stream with and a primary stream, including an aqueous metal chelant. An eductor outlet stream including CO2 gas and the primary stream is released from the eductor into a chamber. The eductor outlet stream may be separated, in the chamber, into a CO2 gas stream and the primary stream including the aqueous metal chelant. An amine unit may be connected upstream of the eductor and provide an acid gas including CO2 to the eductor.

Abstract: A gas treatment system configured to purify an influent gas stream including a hydrocarbon gas and a hydrogen sulfide gas comprises a reduction unit and an oxidation unit. The reduction unit includes at least one eductor configured to contact the influent gas stream with a primary stream including aqueous reducing reagent and release a purified hydrocarbon gas stream and a contacted primary stream including elemental sulfur. The oxidation unit includes at least one eductor configured to contact an oxidizing agent stream and a secondary stream including the primary stream and contacted primary stream and output a regenerated redox reagent stream.

Abstract: An integrated amine and redox gas treatment system is configured to treat an influent hydrocarbon containing stream. The system includes a reduction oxidation unit connected directly downstream of an amine unit. The amine unit is configured to separate the influent fluid stream into a first amine effluent stream including hydrocarbons and a second amine effluent stream including a connection pressure and comprising CO2. The reduction oxidation unit is configured to receive the second amine effluent stream from the amine unit and operate at the connection pressure while releasing a reduction oxidation effluent stream including purified CO2. The connection pressure includes a single pressure or a plurality of pressures at which both the amine unit and the reduction oxidation unit are configured to operate.

Abstract: A system includes an eductor configured to contact an acid gas stream with a primary stream including an aqueous metal chelant and release an eductor outlet stream including CO2 gas and aqueous metal chelant. A chamber is connected to an outlet of the eductor, and the chamber is configured to receive the eductor outlet stream. The chamber includes a sidewall defining a gas outlet and a primary stream outlet such that the chamber is configured to separate the eductor outlet stream into a CO2 gas stream and the primary stream. The eductor includes a motive fluid inlet, and the primary stream extends from the motive fluid inlet to the primary stream outlet such that the primary stream is configured to circulate the aqueous metal chelant from the chamber to the eductor.

Abstract: A dynamically adjustable rate sulfur recovery process continuously calculates and adjusts sour gas stream operating pressure and/or flow rate to maximize sweet gas output, thereby improving efficiency. A corresponding desulfurization system may include a fixed-sized pressure vessel, a flow control valve that controls the rate of flow of a sour gas stream into the pressure vessel, a sensor that measures sulfur concentration in the sour gas stream, a reagent tank, an oxidizer tank, and a phase separator that separates sweet gas as a gaseous phase after hydrogen sulfide in the sour gas stream in the pressure vessel is converted to elemental sulfur, sulfur species, or both by contact with reagent from the reagent tank and oxidizer from the oxidizer tank. A PLC (programmable logic controller) continuously calculates updated flow rates based on sulfur concentration measurements from the sensor to achieve maximum sweet gas production.

Abstract: An integrated amine and redox gas treatment system is configured to treat an influent hydrocarbon containing stream. The system includes a reduction oxidation unit connected directly downstream of an amine unit. The amine unit is configured to separate the influent fluid stream into a first amine effluent stream including hydrocarbons and a second amine effluent stream including a connection pressure and comprising CO2. The reduction oxidation unit is configured to receive the second amine effluent stream from the amine unit and operate at the connection pressure while releasing a reduction oxidation effluent stream including purified CO2 The connection pressure includes a single pressure or a plurality of pressures at which both the amine unit and the reduction oxidation unit are configured to operate.

Abstract: A multi-directional contactor apparatus configured to utilize co-current and counter current flow to contact a first fluid and a second fluid, wherein the second fluid is more dense than the first fluid. The contactor comprises a chamber partially divided by a vertically extending weir, a first inlet port permitting the first fluid to enter the chamber, a second inlet port positioned above the first inlet port and permitting the second fluid to enter the chamber. Countercurrent and co-current contact of the first and second liquids occurs on one side of the weir. The weir separates the co-current contacted second fluid stream from the countercurrent contacted second fluid stream and allows the separated streams to be released from the chamber. The co-current and countercurrent contacted first fluid is released from an upper portion of the tank.

Abstract: An integrated amine and redox gas treatment system is configured to treat an influent hydrocarbon containing stream. The system includes a reduction oxidation unit connected directly downstream of an amine unit. The amine unit is configured to separate the influent fluid stream into a first amine effluent stream including hydrocarbons and a second amine effluent stream including a connection pressure and comprising CO2. The reduction oxidation unit is configured to receive the second amine effluent stream from the amine unit and operate at the connection pressure while releasing a reduction oxidation effluent stream including purified CO2. The connection pressure includes a single pressure or a plurality of pressures at which both the amine unit and the reduction oxidation unit are configured to operate.

Abstract: A qubit device includes a crystal immobilized on a substrate and in contact with electrodes. The crystal exhibits a charge pair symmetry and with an electron current moving clockwise, counter clockwise, or both. The current in can be placed in a state of superposition wherein the current is unknown until it is measured, and the direction of the current is measured to produce a binary output corresponding to a logical zero or a logical one. A state of the qubit device is monitored by measuring a voltage, a current, or a magnetic field and assigning a superposition or base state depending on a threshold value.

Abstract: An energy storage device is formed in an earthen well and includes an outer tubular member disposed in the well and an inner tubular member disposed in the outer tubular member. Both the inner and outer tubular members may extend the length of the well. The inner tubular member is porous and includes a catholyte fluid disposed therein. The outer tubular member includes an anolyte fluid disposed therein. An anode terminal is located between the inner and outer tubular members and contacts an external surface of the inner tubular member. A cathode terminal is located in the inner tubular member and contacts the inner surface of the inner tubular member.

Abstract: The invention comprises a method and apparatus for: (1) alternatingly in time inflating and deflating a sealed compartment that includes: a first flexible and deformable seal connected to a pressure control chamber; (2) alternatingly in time pumping a gas into a first chamber and a second chamber separated by a first piston in a first partially sealed cylinder of a double acting kinematic cylinder, the double acting kinematic cylinder further comprising a second partially sealed cylinder, including: a second piston and the pressure control chamber, the pressure control chamber both on a first side of the second piston and within the second partially sealed cylinder; and (3) transferring a force from the first piston to the second piston via a rigid coupler affixed at a first end to the first piston and at a second end to the second piston, such as to alternating inflate and deflate a seal.

Abstract: A small-scale system for removing hydrogen sulfide and ammonia from a wastewater stream includes a sulfur recovery stage, an ammonia recovery stage, and a separation stage. Sulfur species are oxidized and converted into solid sulfur and solid sulfur species by exposure to a combination of chelated iron and oxidizer. The solid sulfur and solid sulfur species are removed by filtration to yield a sulfur-free stream to which oxidizer is added and electromagnetic radiation is inputted to break the N—H bonds of the ammonia into amine radicals. The combination of additional oxidizer and electromagnetic radiation promotes the creation of water and nitrogen gas.

Abstract: A portable beverage press mug is includes a vessel and a press head assembly. The press head assembly includes a screen (or filter) and a valve arrangement covering the screen. The valve arrangement is movable in response to fluid pressure to create a gap between the valve arrangement and the frame and permit fluid to pass through the screen and the gap.

Abstract: A portable beverage press mug is includes a vessel and a press head assembly. The press head assembly includes a screen (or filter) and a valve arrangement covering the screen. The valve arrangement is movable in response to fluid pressure to create a gap between the valve arrangement and the frame and permit fluid to pass through the screen and the gap.

Abstract: The invention comprises a method and apparatus for estimating state of a cardiovascular system, comprising a cardiac stroke volume analyzer, comprising: (1) a blood pressure sensor generating a time-varying pressure state waveform output from a limb of the person; (2) a system processor connected to the blood pressure sensor; and (3) a dynamic state-space model; the system processor receiving cardiovascular input data, from the blood pressure sensor, related to a transient pressure state of the cardiovascular system; at least one probabilistic model, of the dynamic state-space model, operating on the time-varying pressure state waveform output to generate a probability distribution function to a non-pressure state of the cardiovascular system; iteratively updating the probability distribution function using output from the blood pressure sensor; and processing the probability distribution function to generate a non-pressure state output related to stroke volume of a heart of the person and arterial compliance

Abstract: A system and method is provided for a toy race track. Preferred embodiments of the present invention operate in conjunction with a vehicle affixed to a track, wherein the track is supported in relation to at least one fixed surface via a plurality of support structures. In one embodiment, the track comprises a plurality of flexible sections, allowing a user to construct a track resembling a rollercoaster, having steep curves, upside-down portions, etc. In one embodiment, the vehicle includes a plurality rollers that can be used to both affix the vehicle to the track and propel the vehicle along the track. By affixing the vehicle to the track, the vehicle is prevented from leaving the track during extreme situations (e.g., steep curves, upside-down portions, etc.).

Abstract: A probabilistic digital signal processor using data from multiple instruments is described. In one example, a digital signal processor is integrated into a biomedical device. The processor is configured to: use a dynamic state-space model configured with a physiological model of a body system to provide a prior probability distribution function; receive sensor data input from at least two data sources; and iteratively use a probabilistic updater to integrate the sensor data as a fused data set and generate a posterior probability distribution function using all of: (1) the fused data set; (2) an application of Bayesian probability; and (3) the prior probability distribution function. The processor further generates an output of a biomedical state using the posterior probability function.