Abstract: Air cleaner assemblies, related methods, components therefor, and features thereof are described. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. In some examples, a filter cartridge for an air cleaner includes a media pack extending along a longitudinal axis between opposite inlet and outlet flow ends and defining an outer perimeter with opposite straight sides and a first curved end. The filter cartridge can include a seal arrangement circumscribing the media pack outer perimeter, wherein a portion of the seal arrangement extends beyond a first plane defined by the media pack outlet flow end and a portion of the seal arrangement is disposed between the first plane and a second plane defined by the media pack inlet flow end, wherein the seal arrangement is aligned along a third plane disposed at an oblique angle to the first and second planes.

Abstract: A fixation component includes tines extending from a base portion of the fixation component. Each tine is elastically deformable between a pre-set position and an open position. Each tine includes a hook segment extending from a proximal end near the base portion to a distal end. Each tine also includes a distal segment extending from the distal end of the hook segment to a tissue-piercing tip. When positioned in the pre-set position, the hook segment extends along a pre-set curvature that encloses an angle between 135 degrees and 270 degrees, and the distal segment extends away from a longitudinal axis of the fixation component.

Abstract: A lidar system includes one or more light sources configured to generate a first beam of light and a second beam of light, a scanner configured to scan the first and second beams of light across a field of regard of the lidar system, and a receiver configured to detect the first beam of light and the second beam of light scattered by one or more remote targets. The scanner includes a rotatable polygon mirror that includes multiple reflective surfaces angularly offset from one another along a periphery of the polygon mirror, the reflective surfaces configured to reflect the first and second beams of light to produce a series of scan lines as the polygon mirror rotates. The scanner also includes a pivotable scan mirror configured to (i) reflect the first and second beams of light and (ii) pivot to distribute the scan lines across the field of regard.

Abstract: A circuit comprises a receive processing window formation subsystem, a matched filter subsystem, a keystone interpolation subsystem, a phase modulation subsystem, and an image forming subsystem. The receive processing window formation subsystem forms, for each radar return from a scene, a receive processing window containing the radar return as an unbroken radar return. The matched filter subsystem creates a motion model for a reference point target disposed at a predetermined location within the scene, based on a set of motion compensation parameters for range and range rate, to compensate for at least some effects of fast time Doppler on the reference point target. The keystone interpolation subsystem rescales slow time information from the matched filter subsystem. A phase modulation subsystem applies phase modulations to a keystone-interpolated 2-D output array of information associated with the scene, to ensure proper registration in a range-Doppler map output of the scene.

Abstract: A hairpin conductor includes two wire segments each having respective first and second ends and a respective middle region. The segments are disposed in a side-by-side orientation such that their first ends are proximate each other and their second ends are proximate each other. The first ends are welded to each other and the second ends are welded to each other, or the middle regions are welded to each other, thereby providing a welded wire assembly, which is bent such that the two wire segments are bent equally to form the hairpin conductor. The hairpin conductor has a primary bend in the middle regions to form an apex thereat and first and second secondary bends in the two wire segments nearer to the apex than to the first and second ends to form respective first and second shoulders thereat. A method of forming the hairpin conductor is also presented.

Abstract: Provided are methods, systems, and computer-storage media for developing machine learning technology that is less susceptible to bias problems. A machine learning model may be developed with reduced error attributed to one or more sensitive features by utilizing a loss adjustment weight to determine an adjusted loss function used to train the model. The loss adjustment weight may be determined based on a count of a feature-label combination of a sensitive feature. The adjusted loss function is determined and configured to use the loss adjustment weight when determining loss during model training, and the output of the adjusted loss function is an adjusted loss. The machine learning model may be trained until the adjusted loss satisfies a loss threshold, indicative of an acceptable level of model inaccuracy. Accordingly, present embodiments can provide use case specific tailoring to improve machine learning systems by removing biases associated with certain data features.

Abstract: The present disclosure relates to immunogenic compositions comprising a severe acute respiratory syndrome coron-avirus 2 (SARS-CoV-2) antigen, and a toll-like receptor 9 (TLR9) agonist, such as an oligonucleotide comprising an unmethylated cytidine-phospho-guanosine (CpG) motif. The immunogenic compositions are suitable for stimulating an immune response against a SARS-CoV-2 in an individual in need thereof.

Abstract: A class of systems for searching the code of conventional software, programmable hardware like Field Programmable Gate Arrays and Application Specific Integrated Circuits for behaviors of interest. This enables behavioral requirements and testing to be applied and automatically positioned in the code. Five using communities are envisioned for variations on the invention. These are Software Safety Program Administration, developers of software Intellectual Property (IP) modules and hardware IP modules, Systems Integrators of such IP, IP brokers, and Cyber Security Vendors. The usage of the invention by these communities is sufficiently different that there are separate and unique claims specific to the needs of each group.

Abstract: A method for bonding together two or more acid-doped polybenzimidazole films is provided.

Abstract: The present disclosure relates to immunogenic compositions comprising a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antigen, and a toll-like receptor 9 (TLR9) agonist, such as an oligonucleotide comprising an unmethylated cytidine-phospho-guanosine (CpG) motif. The immunogenic compositions are suitable for stimulating an immune response against a SARS-CoV-2 in an individual in need thereof.

Abstract: The present disclosure relates to immunogenic compositions comprising a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antigen, and a toll-like receptor 9 (TLR9) agonist, such as an oligonucleotide comprising an unmethylated cytidine-phospho-guano sine (CpG) motif. The immunogenic compositions are suitable for stimulating an immune response against a SARS-CoV-2 in an individual in need thereof.

Abstract: The present disclosure relates to immunogenic compositions comprising tetanus, diphtheria, and acellular pertussis (Tdap) antigens, and a toll-like receptor 9 (TLR9) agonist, such as oligonucleotide comprising an unmethylated cytidine-phospho-guanosine (CpG) motif. The immunogenic compositions may further comprise an aluminum salt adjuvant to which the Tdap antigens are adsorbed. The immunogenic compositions are suitable for active booster immunization against tetanus, diphtheria, and pertussis in an individual in need thereof.

Abstract: The present disclosure relates to immunogenic compositions comprising a varicella zoster vims (VZV) glycoprotein E antigen and a toll-like receptor 9 (TLR9) agonist, such as an oligonucleotide comprising an unmethylated cytidine-phospho-guanosine (CpG) motif. The immunogenic compositions are suitable for stimulating an immune response against VZV in an individual in need thereof.

Abstract: A thermo-electrochemical converter is provided. The converter includes a working fluid, coupled first and second membrane electrode assemblies (MEA), first and second heat transfer members, a heat sink and a heat source. Each MEA includes a first porous electrode operating at a first pressure, a second porous electrode operating at a second pressure which is higher than the first pressure, and an ion conductive membrane sandwiched therebetween. The first MEA compresses the working fluid and the second MEA expands the working fluid. The first heat transfer member is coupled to and thermally interfaces with a low-pressure electrode of the first MEA. The second heat transfer member is coupled to and thermally interfaces with a lowpressure electrode of the second MEA. The heat sink is coupled to the low-pressure side of the first MEA and the heat source is coupled to the low-pressure side of the second MEA.

Abstract: Described embodiments are directed toward centrally-opening leaflet prosthetic valve devices having synthetic leaflets that are configured to promote and encourage tissue ingrowth thereon and/or therein. The leaflets are coupled to a leaflet frame to form a prosthetic valve suitable for use in biological anatomy.

Abstract: A floor cleaner includes a handle, a body, a base movable over a surface to be cleaned, and a supply tank coupled to the body. The supply tank having an inlet opening defining an inlet opening width and a fluid disposed therein. A water soluble package includes a cleaning solution disposed therein and is inserted within the supply tank to combine with the fluid disposed therein to form a cleaning fluid. A distribution nozzle is in communication with the supply tank and disperses the cleaning fluid towards a ground surface. The package has an unfolded dimension defined by a first width that is larger than the inlet width, a height defined orthogonal to the first width, and a thickness defined orthogonal to the first width and the height. The package folds from the unfolded dimension to a compact size having a folded dimension defined by a second width that is smaller than the inlet opening width.

Abstract: A step ladder carrier has an enclosure and a ladder securing assembly. The ladder securing assembly has a movable stop having an engaged position in which it engages a first step of a step ladder and having a disengaged position in which it does not engage a first step of a step ladder, the movable stop being moved between the engaged and disengaged positions by an externally accessible handle at the rear wall of the carrier.

Abstract: Systems and methods for improving accuracy of an amount of fuel injected to an engine are disclosed. In one example, a maximum fuel injector holding current value is adjusted from a higher value to a lower value within a predetermined amount of time of an end of fuel injection. By adjusting the maximum fuel injector holding current value, it may be possible to reduce variation in an amount of fuel that is injected via the fuel injector.

Abstract: Systems and methods for improving accuracy of an amount of fuel injected to an engine are disclosed. In one example, a maximum fuel injector holding current value is adjusted from a higher value to a lower value within a predetermined amount of time of an end of fuel injection. By adjusting the maximum fuel injector holding current value, it may be possible to reduce variation in an amount of fuel that is injected via the fuel injector.

Abstract: Described embodiments are directed toward centrally-opening leaflet prosthetic valve devices having synthetic leaflets that are configured to promote and encourage tissue ingrowth thereon and/or therein. The leaflets are coupled to a leaflet frame to form a prosthetic valve suitable for use in biological anatomy.