Abstract: An example embodiment may involve: obtaining a representation of an access control list (ACL), wherein the ACL includes an entry that defines user capabilities with respect to a computing resource; determining a user class based on the entry and one or more rules, wherein the one or more rules are based on whether the computing resource is a database table for a task-based application, and wherein the one or more rules are based on whether the computing resource is read accessible or write accessible; and providing, for display on a graphical user interface, an indication of the user class.

Abstract: Bioreactors and methods for growing a chemoautotrophic culture of a microorganism, such as a hydrogen-oxidizing or carbon monoxide-oxidizing microorganism, are provided. The bioreactors and methods provide for enhanced growth and productivity of microorganisms that use gaseous sources of carbon and energy and provide an environment for carbon fixing to produce organic molecules of interest and/or biomass. The present bioreactors and methods achieve enhanced growth with respect to cell density, culture duration and/or growth rate, while maintaining safe operating conditions.

Abstract: A battery charger includes a relay having a first terminal and a second terminal. A capacitor has a first terminal and a second terminal. The first terminal is coupled to the second terminal of the relay. A clamp circuit is coupled to the second terminal of the capacitor. A reference voltage circuit has an output terminal. A comparator has a first comparator input terminal coupled to the second terminal of the capacitor and has a second comparator input terminal coupled to the output terminal of the reference voltage circuit.

Abstract: An example embodiment may involve: obtaining a representation of an access control list (ACL), wherein the ACL includes an entry that defines user capabilities with respect to a computing resource; determining a user class based on the entry and one or more rules, wherein the one or more rules are based on whether the computing resource is a database table for a task-based application, and wherein the one or more rules are based on whether the computing resource is read accessible or write accessible; and providing, for display on a graphical user interface, an indication of the user class.

Abstract: Bioreactors and methods for growing a chemoautotrophic culture of a microorganism, such as a hydrogen-oxidizing or carbon monoxide-oxidizing microorganism, are provided. The bioreactors and methods provide for enhanced growth and productivity of microorganisms that use gaseous sources of carbon and energy and provide an environment for carbon fixing to produce organic molecules of interest and/or biomass. The present bioreactors and methods achieve enhanced growth with respect to cell density, culture duration and/or growth rate, while maintaining safe operating conditions.

Abstract: A system includes a processor and a memory storing instructions which when executed by the processor configure the processor to receive a plurality of images captured by a camera from an image processing system, detect an object in an image from the plurality of images using a model, and identify the detected object using the model and a database of previously identified objects. The instructions configure the processor to track movement of the identified object across a series of images from the plurality of images. The instructions configure the processor to detect, based on the plurality of images, when the identified object disappears from view of the camera. The instructions configure the processor to determine an outcome for the identified object based on first and last detections of the identified object and a direction of movement of the identified object.

Abstract: Methods, circuits and computer program products are presented herein. The method includes isolating a ripple waveform from a current signal originating from a brushed direct current motor (BDCM). The method includes determining the wave count of the ripple waveform. The method includes determining a position of a movable structure operably coupled to a shaft of the BDCM according to the wave count of the ripple waveform. The present technology may be practiced without discrete capacitor components in high pass filtering aspects of the disclosed circuit. The methods, circuits and computer program products can be implemented to accurately determine a rotational position of a shaft of a BDCM and also position(s) of mechanism(s) coupled to the shaft without requiring any external sensors or other components for this purpose other than the disclosed circuits.

Abstract: A system for enabling in store routing of a user generated shopping list using existing store cameras and artificial intelligence and machine learning is provided. The system uses a pixelbuffer comparison of items imaged in real time to compared to a database of machine learned images. The system further provides item recognition and detection through machine learning so as to improve a shoppers experiences. The system and method further includes drone assistance means and radio signal item and biological detection so as to improve accuracy. Other features to improve guidance and accuracy include landmark navigation and masking to improve accuracy of item recognition and detection. The system may be a standalone kiosk.

Abstract: Disclosed are modular chemical reaction systems and methods of using such chemical reaction systems. The disclosed systems can have a substrate layer and a plurality of modules selectively mounted to an outer surface of the substrate layer. The substrate layer can include flow connectors that cooperate with the modules to form a fluid flow pathway for performing at least one step of a chemical reaction. At least one of the modules can be a process module, such as a reactor or separator. The modules can also include at least one regulator module. The system can also include at least one analysis device that analyzes at least one characteristic of the chemical reaction as the reaction occurs. The system can also include processing circuitry that monitors and/or optimizes the chemical reaction based on feedback received from the analysis device or other system components.

Abstract: A plurality ceiling fan kits comprising one or more pre-wired downrods or a set of pre-wired downrods having internal wiring terminating on one or more ends in wire leads made of electrically conductive materials. Different electrical connectors, for use with the ceiling fan kits and pre-wired downrods, are adapted to electrically couple one or more sets of wiring by pushing in the electrically conductive wire leads into a plurality of ports disposed on the electrical connectors. The electrical connectors may include a jumper for switching between a single- and dual-power supply switch configuration and indicia for identifying the insertion of a wire into a corresponding port. A method of mounting a ceiling fan to a structure having an electrical supply, utilizing the pre-wired downrods and the electrical connectors.

Abstract: A plurality ceiling fan kits comprising one or more pre-wired downrods or a set of pre-wired downrods having internal wiring terminating on one or more ends in wire leads made of electrically conductive materials. Different electrical connectors, for use with the ceiling fan kits and pre-wired downrods, are adapted to electrically couple one or more sets of wiring by pushing in the electrically conductive wire leads into a plurality of ports disposed on the electrical connectors. The electrical connectors may include a jumper for switching between a single- and dual-power supply switch configuration and indicia for identifying the insertion of a wire into a corresponding port. A method of mounting a ceiling fan to a structure having an electrical supply, utilizing the pre-wired downrods and the electrical connectors.

Abstract: Systems and methods for producing microcrystalline alpha alane are provided herein. An exemplary process comprises the elimination of the crystallization aid lithium borohydride through the use of excess lithium aluminum hydride or sodium borohydride. Further exemplary processes comprise methods for passivating microcrystalline alpha alane using a weak acid in a nonaqueous solvent solution.

Abstract: Systems and methods for producing microcrystalline alpha alane are provided herein. An exemplary process comprises the elimination of the crystallization aid lithium borohydride through the use of excess lithium aluminum hydride or sodium borohydride. Further exemplary processes comprise methods for passivating microcrystalline alpha alane using a weak acid in a nonaqueous solvent solution.

Abstract: A kit or assembly for a ceiling fan can include a downrod and a set of electrical wires. The downrod can include a sidewall defining an interior. An opening can be provided in the sidewall for accessing the interior. The set of electrical wires can extend through the interior of the downrod, having first and second sets of wire tips, and can be longer than the downrod. An optional electrical connector can be provided on one of the first or second sets of wire tips.

Abstract: Fluidized-bed reactors for producing alane are provided herein. An exemplary process includes inducing an electrical potential difference in an electrolyte solution to produce an anolyte solution that includes an alane adduct, wherein an electrical potential difference is generated between anode aluminum particles and a cathode, the electrolyte solution including an alkali metal hydride dissolved in a solvent, the anode aluminum particles and cathode being separated by a diaphragm.

Abstract: Disclosed herein are systems and methods for heating alane etherate compositions for producing microcrystalline alpha alane. An exemplary heating method comprises introducing a preheated solvent into the alane etherate composition and rapidly stirring to effectuate rapid heating of the composition without the need to heat the reactor walls. In this way, the alane etherate composition can be heated while also reducing the risk of decomposition. In further embodiments, a two-stage reactor can be employed for producing alpha alane, wherein the heating occurs in the second stage.

Abstract: A kit or assembly for a ceiling fan can include a downrod and a set of electrical wires. The downrod can include a sidewall defining an interior. An opening can be provided in the sidewall for accessing the interior. The set of electrical wires can extend through the interior of the downrod, having first and second sets of wire tips, and can be longer than the downrod. An optional electrical connector can be provided on one of the first or second sets of wire tips.

Abstract: Disclosed herein are systems and methods for heating alane etherate compositions for producing microcrystalline alpha alane. An exemplary heating method comprises introducing a preheated solvent into the alane etherate composition and rapidly stirring to effectuate rapid heating of the composition without the need to heat the reactor walls. In this way, the alane etherate composition can be heated while also reducing the risk of decomposition. In further embodiments, a two-stage reactor can be employed for producing alpha alane, wherein the heating occurs in the second stage.

Abstract: Systems and methods for producing microcrystalline alpha alane are provided herein. An exemplary process for producing microcrystalline alpha alane includes reacting lithium aluminum hydride and aluminum chloride in a solvent to produce alane etherate, filtering alane etherate from the reactant, combining the filtered alane etherate with a lithium borohydride solution to produce solids that include microcrystalline alane etherate, removing remaining solvent from the solids, creating a slurry from the solids and an aromatic solvent, and heating the slurry to convert the microcrystalline alane etherate to microcrystalline alpha alane.

Abstract: A plurality ceiling fan kits comprising one or more pre-wired downrods or a set of pre-wired downrods having internal wiring terminating on one or more ends in wire leads made of electrically conductive materials. Different electrical connectors, for use with the ceiling fan kits and pre-wired downrods, are adapted to electrically couple one or more sets of wiring by pushing in the electrically conductive wire leads into a plurality of ports disposed on the electrical connectors. The electrical connectors may include a jumper for switching between a single- and dual-power supply switch configuration and indicia for identifying the insertion of a wire into a corresponding port. A method of mounting a ceiling fan to a structure having an electrical supply, utilizing the pre-wired downrods and the electrical connectors.