Abstract: A sensing and processing electronic circuit includes a sensing array having a plurality of sensing elements each having a sensor configured to produce an output signal in response to detection of an environmental parameter. The circuit includes a triggering unit configured to generate a trigger signal that causes an action to occur. The trigger signal is generated based on selected activated sensing elements satisfying one or more specifiable conditions. A sensing element is activated when a characteristic value based on the output value of the sensing element crosses one or more thresholds so that the characteristic value is above, below, within or outside of a specified range of values or when a difference value between the characteristic value and a previous or template value of the sensing element crosses one or more thresholds so that the difference value is above, below, within or outside of a specified range of values.

Abstract: Low emission nozzles and receptacles are disclosed. A receptacle includes a main body, a first stem, a first poppet connected to the first stem, a valve seat disposed in the main body, a first spring configured to bias the first poppet to a first closed position, a second stem slidingly engaged to the first poppet and the first stem, a second poppet connected to the second stem, and a second spring configured to bias the second poppet to a second closed position.

Abstract: Polyesters are an invaluable material used today and are considered more recyclable-by-design and biodegradable than polyolefins. Disclosed herein are methods for up-cycling of polyethylene (PE) to aliphatic polyesters via a two-step oxidative approach. The first step converts PE to a polyketone via a mild oxidation with a radical initiator, solvent, O2, and cobalt catalyst. The second step converts the resulting ketone functionality to the ester via a Baeyer-Villiger oxidation.

Abstract: A connection piece for a medical ventilator assembly which comprises a main body with a first inflow end and a second inflow end, and an outflow end. The first inflow end and the outflow end define a channel with a longitudinal axis. The second inflow end comprises a one-way valve adapted to allow gas flow toward the channel. The connection piece further comprises a leak valve arranged downstream of the one-way valve. The second inflow end is shaped and/or oriented with respect to the channel such that a gas flow from the second inflow end enters the channel, at an entry point, at an angle of less than 90° with respect to a direction of the longitudinal axis at said entry point from the first inflow end to the outflow end.

Abstract: A device for efficient object detection and selective display of video frames is disclosed. A plurality of bounding boxes to visually bound one or more subjects are defined in the received video frames; each bounding box includes padding above and laterally with respect to the one or more subjects in the video frame. The device may reduce the plurality of bounding boxes by merging bounding boxes to create reduced plurality of merged bounding boxes. The device performs object detection on the reduced plurality of merged bounding boxes by searching a training database for detecting and identifying suspicious objects. The identified objects are annotated. On identifying that an object is suspicious, based on a trained database of firearms in a plurality of environments across a plurality of industries, the video frame is transmitted to a graphical user interface of a user device.

Abstract: Disclosed herein are methods and compositions of matter showing that catalytic autoxidation can be used to generate aromatic monomers from C—C linked dimers and oligomers derived from lignin. This is demonstrated by acetylating phenol-rich RCF oil and then conducting aerobic oxidation of the oligomeric fraction of poplar RCF oil with a Co/Mn/Br catalyst mixture in acetic acid. This reaction yields a collection of oxygenated aromatic monomers that represent a 17% increase in monomer yield compared to the RCF process alone.

Abstract: Described herein is a chemical process for the conversion of lignocellulosic biomass into muconic acid which is useful for the generation of plastics and polymers. The described methods utilize catalytic chemical reactions and biological processes to facilitate the conversion, while increasing yields and reducing energy requirements.

Abstract: A device may receive and store video frames in the memory. The device may define, in a video frame among the video frames, a plurality of bounding boxes to visually bound one or more subjects, each bounding box of the plurality of bounding boxes may be defined in accordance with a pre-defined aspect ratio, and each bounding box may comprise padding above and laterally with respect to the one or more subjects in the video frame. The device may reduce the plurality of bounding boxes by merging two bounding boxes among the plurality of bounding boxes to create a merged bounding box, wherein the merged bounding box may maintain the pre-defined aspect ratio and visually bounds the two bounding boxes being merged, and wherein the reduced plurality of bounding boxes is provided to an object detector.

Abstract: A device for efficient object detection and selective display of video frames is disclosed. A plurality of bounding boxes to visually bound one or more subjects are defined in the received video frames; each bounding box includes padding above and laterally with respect to the one or more subjects in the video frame. The device may reduce the plurality of bounding boxes by merging bounding boxes to create reduced plurality of merged bounding boxes. The device performs object detection on the reduced plurality of merged bounding boxes by searching a training database for detecting and identifying suspicious objects. The identified objects are annotated. On identifying that an object is suspicious, based on a trained database of firearms in a plurality of environments across a plurality of industries, the video frame is transmitted to a graphical user interface of a user device.

Abstract: Systems and methods for interactive live video streaming in accordance with embodiments of the invention are illustrated. One embodiment includes an interaction encoder for transmitting interactive live video streams, including a processor, and a memory, containing an interaction encoding application, where the interaction encoding application directs the processor to obtain media data comprising a video track, receive a request to generate an interaction object in the video track at a given timestamp of the video stream, generate interaction data based on the request, where the interaction data includes a data structure capable of being decoded in near-real time to produce the interaction object in the video track at the timestamp when played back, and transmit the interaction data to an interaction decoder.

Abstract: A rapid-connect coupler having an anti-rotation feature is disclosed. A coupler includes a housing, a probe configured to translate longitudinally within the housing, a ball cage, a plurality of balls disposed in the ball cage, and a slidable sleeve coupled to the probe and configured to translate longitudinally with the probe. The slidable sleeve includes a collar that defines a plurality of channels positioned radially about and extending axially along an outer surface. The plurality of channels of the collar are configured to receive bearings of the receptacle to prevent rotation of the coupler relative to the receptacle. To couple the coupler to the receptacle, the slidable sleeve is configured to slide in a longitudinal direction into the receptacle to cause the plurality of channels to receive the bearings of the receptacle and subsequently cause the plurality of balls to lock the coupler to the receptacle.

Abstract: A coupler for connecting a tank to a receptacle includes a housing, a probe configured to translate longitudinally within the housing, and a handle assembly configured to cause the probe to translate within the housing. The handle assembly is movable between a decoupled position, a coupled position, and a venting position. The coupler includes a ball cage, a plurality of balls disposed in the ball cage, and a slidable sleeve coupled to the probe and configured to translate longitudinally with the probe. The slidable sleeve is configured to slide in a first longitudinal direction to cause the plurality of balls to translate radially to lock the coupler to the receptacle. The slidable sleeve includes a collar defining a plurality of channels that are positioned radially and extending axially along the collar and configured to receive bearings of the receptacle in the coupled position and the venting position to prevent rotation.

Abstract: A high-precision, low false alarm rate detection apparatus, system, and method for rapid reaction to sudden kinetic impulses caused by abnormal motion, such as kickback, of a power tool. The apparatus, system and method includes local measurement of sensing modalities with local real-time processing and advanced digital signal processing to measure the total kinematic motion of any power tool. A machine learning model pre-trained for the power tool to predict an occurrence of an abnormal motion such as a kickback event of the power tool, the machine learning model using data received from sensing modalities to predict an occurrence of the kickback event, and a reactive device of the power tool is activated upon prediction of the kickback event.

Abstract: Systems and methods for interactive live video streaming in accordance with embodiments of the invention are illustrated. One embodiment includes an interaction encoder for transmitting interactive live video streams, including a processor, and a memory, containing an interaction encoding application, where the interaction encoding application directs the processor to obtain media data comprising a video track, receive a request to generate an interaction object in the video track at a given timestamp of the video stream, generate interaction data based on the request, where the interaction data includes a data structure capable of being decoded in near-real time to produce the interaction object in the video track at the timestamp when played back, and transmit the interaction data to an interaction decoder.

Abstract: An apparatus comprising a cylindrical die holder base containing two recessed compartments, two different abrasive coated sharpen dies, a cylindrical index containing drill bit guide holes used to align drill bit dead center with the sharpening dies, male and female hemispheres on the index and the base to ensure alignment, a spring assembly allowing for separation of index from base while rotating index, a cylindrical safety guard used to cover index holes that are not aligned with sharpening dies, a locking knob used to lock and unlock index to base to allow or disallow rotation, and a radiused handle with a flat bottom used to safely hold drill sharpening device down on a flat surface while in use.

Abstract: Low emission nozzles and receptacles are disclosed. A receptacle includes a main body, a first stem, a first poppet connected to the first stem, a valve seat disposed in the main body, a first spring configured to bias the first poppet to a first closed position, a second stem slidingly engaged to the first poppet and the first stem, a second poppet connected to the second stem, and a second spring configured to bias the second poppet to a second closed position.

Abstract: A receptacle includes a main body, a stem, a poppet connected to the stem and defining an inner check void, a spring configured to bias the poppet to a closed poppet position, and a check assembly at least partially disposed in the inner check void. The check assembly includes a check and a check spring. The check is configured to move relative to the main body. The check spring is configured to bias the check toward a closed check position. The check has a first surface area and the poppet has a second surface area that is larger than the first surface area of the poppet such that a fluid force causes the check to move to an open check position before causing the poppet to move to an open poppet position.

Abstract: Distinctly keyed male-female couplers are pneumatically connected to medical ventilator by distinct lines carrying pulsatile gas or sensory signals. Ventilator-mounted female coupler has entranceway cavity and larger receiving cavity delimited by catch edge. Male fence-forming longitudinal winglets extend from sealing plate carry terminal end convexities which latch onto catch edge. Winglets move inward due to larger fence circumference than entranceway and seat on catch. Winglets placed in tension due to locking length less than entranceway span, then convert force into sealing compressive force between sealing plate and female tube end. Conjoining male tube bayoneted and sheathed by projecting female tube, resulting in another gas seal. Two compressive seals formed between male distal port and pneumatic line. Extending male key(s) on winglet insertable into matching female slots. Convexities block insertion of non-matching couplers set due to interference by convexities on female on entranceway edges.

Abstract: A keepout zone detection system and method for a hazardous area, such as the workspace around a power tool, that includes a safety device that controls a safety event, such as disabling the power tool, and a keepout zone detection device that includes at least one imager for imaging a workspace associated with the power tool. A processor dynamically determines the keepout zone specific to the power tool based on information received from the imager(s) or by referring to a predetermined keepout zone stored in a memory, where the processor includes a pre-trained neural network that processes the received images to further identify the presence of human appendage(s) within the keepout zone; and a communication device that communicates with the safety device to control the safety event, such as disabling the power tool, based on the determination of the presence of the human appendage within the keepout zone.

Abstract: An active safety device and method for fastener tools that includes a first sensor that detects a hazardous target; a first driver that drives the fastener a minimal distance into the material, the fastener being conductive and acting as a second sensor; a second driver that drives the fastener into the material; a processor that receives information from the first sensor and determines if a hazardous target is detected by said first sensor and engages a trigger interlock if the hazardous target is not detected the first driver is engaged and said second sensor provides information on the composition of the material to the processor; wherein the processor engages the trigger interlock when it determines if the composition of the material is classified as a hazardous target and otherwise initiates the second driver to drive the fastener into the material.