Abstract: A portable oxygen concentrator designed for medical use where the adsorbent beds, are designed to be replaced by a patient. The concentrator is designed so that the power supply and adsorbent bed mount is one module and the compressor and air filter are part of another module configured to provide a unitary cooling and air supply system. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.

Abstract: A method for homing a stepping motor having a plurality of full-step positions within each full rotation of a rotor of the stepper motor includes applying a first drive current to windings of the stepper motor to rotate the rotor at least one full rotation in a first direction away from an end-of-travel (EOT) position. Thereafter, the drive current is applied to the windings to rotate the rotor in a second direction toward the EOT position. Upon detection of EOT, the drive current is discontinued. Drive current is then applied to the windings to rotate the rotor of the stepper motor in micro-steps in the first direction to a closest full-step position of the stepper motor. Finally, a drive current is applied to drive the stepper motor a predetermined number of full steps away from the EOT position.

Abstract: A novel maize variety designated X18N926 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X18N926 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X18N926 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X18N926, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X18N926 are provided. Methods for producing maize varieties derived from maize variety X18N926 and methods of using maize variety X18N926 are disclosed.

Abstract: There is a need for more effective and efficient predictive data analysis. This need can be addressed by, for example, solutions for performing/executing hybrid input predictive data analysis.

Abstract: A system and method for updating and correcting facts that receives proposed values for facts from users and determines a correctness score which is used to automatically accept or reject the proposed values.

Abstract: An improved exhaust system and method for an apparatus that removes support material from additively manufactured parts is disclosed. The apparatus includes an enclosed chamber in which the additively manufactured parts are placed. A heated detergent fluid is sprayed at the additively manufactured parts. The improved exhaust system exhausts heated air from the chamber. The improved exhaust system includes an exhaust channel having an inlet end open to the chamber through which heated air from the chamber is caused to flow. Relatively cooler air is caused to flow across the outside of the exhaust channel. When the heated air from the chamber encounters the exhaust channel across which the relatively cooler air is caused to flow, evaporated fluids in the heated air condense and fall back into the chamber. The improved exhaust system can be retrofitted onto older models of the support removal apparatus that do not have the improved exhaust system.

Abstract: A banknote validator having a housing, a validation sensor; and a banknote drive mechanism. The banknote drive mechanism may be arranged to transport a banknote from an input aperture to a stacking device. The banknote drive mechanism may delimit a first banknote pathway proximal to an input aperture, and a second banknote pathway proximal to the stacking device. A pivotable security gate arrangement may be included that is resiliently biased to project into the second banknote pathway.

Abstract: A waterproof garment worn around the waist that unrolls down the backside of the body providing a layer of protection against rain, mud, grass, and other elements, comprising: (i) a sleeve at the top of the material, in which a user slips a belt through the material so it can be worn around the waist by the user; and (ii) on both ends of the sleeve is a loop that is sewn part way up the material to prevent the belt from falling out, but still allowing it to move and be adjusted. The device may be composed of a lightweight waterproof coated nylon material, among many other options. The waterproof garment may optionally be heated, and may be used during sporting events, concerts, hiking, picnics, at the beach, and in many other locations and scenarios.

Abstract: A method and system, the method including receiving a set of requirements for a software application, the set of requirements comprising a plurality of software requirements identified for the software application; analyzing the set of requirements to determine dependencies between the plurality of software requirements in the set of requirements; generating a visualization of the determined dependencies and test boundaries between the plurality of software requirements in the set of requirements; storing the generated visualization of the determined dependencies and test boundaries between the plurality of software requirements in the set of requirements in a record; and applying the determined dependencies in the record to at least one of (i) optimize test steps in a test procedure and (ii) generate an executable test procedure that exercises external inputs and outputs for the software application.

Abstract: A method and system, the method including receiving a set of requirements for a software application, the set of requirements comprising a plurality of software requirements identified for the software application; analyzing the set of requirements to determine dependencies between the plurality of software requirements in the set of requirements; generating a visualization of the determined dependencies and test boundaries between the plurality of software requirements in the set of requirements; storing the generated visualization of the determined dependencies and test boundaries between the plurality of software requirements in the set of requirements in a record; and applying the determined dependencies in the record to at least one of (i) optimize test steps in a test procedure and (ii) generate an executable test procedure that exercises external inputs and outputs for the software application.

Abstract: A system for equivalence class analysis-based automated requirements-based test case generation includes a control processor, a data store containing textual design requirements, a textual converter unit structured to convert the textual design requirements to a machine-readable version of design requirements, a requirement partition unit configured to partition the machine-readable design requirements into one or more sets of related design requirements, an equivalence class partition unit configured to process the machine-readable design requirements and input/output variables into a set of equivalence classes, an equivalence class analyzer unit structured to analyze the set of equivalence classes to generate equivalence class tests and identify uncovered input space, and a boundary class analyzer unit structured to identify boundaries of the equivalence classes and generate boundary value tests and robustness tests.

Abstract: A robotic vehicle is provided with an extendable arm and a mandible structure. The mandible structure includes a pair of mandibles with toothed portions that cooperatively engage such that the mandibles may be opened and closed by applying a force to only one of the pair of mandibles. The mandible structure hangs freely from the extendable arm and is balanced so that the mandible structure naturally maintains a substantially vertical orientation. In the closed position, the mandible structure defines an interior cavity suitable for securely grasping a ring.