Abstract: A radar-optical fusion article for attachment to a substrate is described. The radar-optical fusion article includes a first retroreflective layer which is configured to retroreflect at least a portion of light having a wavelength in a range from about 400 nm to about 2500 nm. The radar-optical fusion article includes a second retroreflective layer disposed adjacent to the first retroreflective layer. The second retroreflective layer is configured to retroreflect at least a portion of an electromagnetic wave having a frequency in the range from about 0.5 GHz to about 100 GHz.

Abstract: Example systems disclosed herein include a temporary traffic control (TTC) zone monitoring system that assesses and responds to a risk of an adverse event in the TTC zone. The TTC zone monitoring system includes at least one sensor and a computing device. The computing device processes sensor data from the sensor to identify one or more features of the TTC zone. The features of the TTC zone include traffic control features, vehicle features, pathway features, or environmental features. The computing device determines a risk indicative of a risk of an adverse event in the TTC zone based on risk factors. Each of the risk factors is indicative of a risk of an adverse event associated with at least one feature the TTC zone and is based on adverse event data of the at least one feature. The computing device performs at least one operation based on the risk score.

Abstract: Ferrules, alignment frames and connectors having at least one flexing element are provided. A ferrule or an alignment frame may include a body and first and second flexible arms, and a connector may include the ferrule or the alignment frame. A ferrule may have a first flexible arm that has a first fixed end attached to a first side of the body of the ferrule and an opposite first free end, and may have a second flexible arm having a second fixed end attached to a second side of the body, opposite the first side, and an opposite second free end. When the ferrule is mated with a mating ferrule, the first and second flexible arms are flexed away from the respective first and second sides of the body, and the first and second free ends contact the mating ferrule.

Abstract: Systems and methods of path-based mapping and routing are provided. Translation information and absolute information of mobile objects in environments are determined based on a fusion of sensing data from a radar and an inertial measurement unit (IMU) including a gyroscope and an accelerometer, from which path-based maps and optimal routes can be generated.

Abstract: In some examples, a system includes a plurality of articles of personal protected equipment (PPE) that are each assigned to a particular worker. The system may also include a data hub that detects an input that initiates a broadcast of diagnostic self-check messages; identifies, in response to the input, each article of PPE of the plurality of articles of PPE; broadcasts, based on identifying each article of PPE, the diagnostic self-check messages to the respective articles of PPE, wherein each article of PPE receives its respective self-check message at its communication component; in response to receiving a set of diagnostic acknowledgement messages from one or more of the plurality of articles of PPE that have performed a diagnostic self-check, determines whether the set of diagnostic acknowledge messages satisfy one or more self-check criteria; and performs one or more operations based on whether the self-check criteria are satisfied.

Abstract: The copolymer includes divalent units represented by formula —[CF2—CF2]—, at least one divalent unit represented by formula (I): and at least one divalent unit independently represented by formula (II): A is —N(RFa)2 or a is non-aromatic, 5- to 8-membered, perfluorinated ring comprising one or two nitrogen atoms in the ring and optionally comprising at least one oxygen atom in the ring, each RFa is independently linear or branched perfluoroalkyl having 1 to 8 carbon atoms and optionally interrupted by at least one catenated O or N atom, each Y is independently —H or —F, with the proviso that one Y may be —CF3, h is 0, 1, or 2, each i is independently 2 to 8, and j is 0, 1, or 2. A catalyst ink and polymer electrolyte membrane including the copolymer are also provided.

Abstract: Described are adhesive compositions containing a block copolymer component that includes a midblock segment and a plurality of end block segments, each end block segment comprising polystyrene, a (meth)acrylic functional additive having a glass transition temperature of from 50° C. to 160° C., a first tackifier compatible with the midblock segment and containing a hydrocarbon, and a second tackifier compatible with the end block segments and containing a polyphenylene ether. These compositions are useful in providing pressure-sensitive adhesives that are melt processible, display a high temperature resistance, and effectively bond to low surface energy substrates.

Abstract: An optically transparent antenna stack includes at least two stacked optically transparent antennas. Each antenna includes an electrically conductive metal mesh including a plurality of interconnected electrically conductive metal traces defining a plurality of enclosed open areas. The metal mesh of each antenna and each lead has a percent open area greater than about 50%. The at least two stacked optically transparent antennas includes a first antenna configured to operate over a first, but not a second, frequency band and a second antenna configured to operate over the second, but not the first, frequency band. The optically transparent antenna stack has an optical transmission of at least about 50% for at least one wavelength in a wavelength range from about 450 nm to about 600 nm.

Abstract: Method and system are disclosed for determining conditions of components that are removably coupled to articles of personal protection equipment (PPE) by tracking the components against predetermined criteria.

Abstract: There is provided a respiratory protection device comprising a mask body defining a breathable air zone for a wearer and having a front cover; an exhale valve in fluid communication with the breathable air zone; and a seal check mechanism disposed in the front cover, where the seal check mechanism comprises a button associated with a flap such that, when actuated, the flap biases the exhale valve in a closed position. There is provided in some embodiments a plane of the button intersecting with a plane of the exhale valve. There is also provided in some embodiments the button and the plunger being a monolithic part.

Abstract: Adhesive seals include an elastic sealing sheet, an adhesive layer, and a release sheet on the adhesive layer.

Abstract: An optical system, including a reflective polarizer, and a display and a mirror disposed on a same side of, and generally facing, the reflective polarizer. The reflective polarizer may transmit at least 80% of incident light having a first polarization state and may reflect at least 80% of incident light having a second polarization state, and the mirror may reflect at least 80% of the incident light for each of the first and second polarization states. The central locations of the display, reflective polarizer, and mirror may define a midplane which includes first, second, and third regions, such that the first region includes portions of the image rays that pass at least once across the region, the second region includes portions of the image rays that pass at least twice across the region, and the third region includes portions of the image rays that pass three times across the region.

Abstract: Coextruded polymeric article comprising first segments each having first and second opposed major surfaces and a thickness, the first segments comprising first material; second segments comprising second material, wherein adjacent first segments are joined together via a second segment, wherein the second segments extend from the second major surface past the first major surface of each first adjacent segment and has a distal end, the second segments having first and second oppose sides; first protrusions each extending from the first side of a second segment and extending no more than to the first major surface of the respective first segment adjacent to the second segment, the first protrusions comprising third material; and second protrusions each extending from the first side of a second segment, contacting the first protrusion extending from the second segment and extending not more than to the distal end of the second segment, the second protrusions comprising fourth material, wherein at least one of th

Abstract: An article for a display device having an output surface. The article includes a light valve, a reflective polarizer, and a diffusing layer. The light valve is configured to be disposed on the output surface of the display device. The light valve is operable in a pass mode and a block mode. The reflective polarizer is disposed on the light valve opposite to the display device. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The diffusing layer is disposed on the reflective polarizer opposite to the light valve.

Abstract: A curable composition comprises oxidized boron nitride particles and a polyaziridine. Each oxidized boron nitride particle comprises a hydrated boron oxide surface layer disposed on a boron nitride core. A method of curing and a cured reaction product are also disclosed.

Abstract: A core-sheath filament having a non-tacky sheath and a hot-melt processable adhesive core, the sheath exhibiting a melt flow index of less than 15 grams per 10 minutes, is provided. Methods of making the core-sheath filament and methods of using the core-sheath filament to print a hot-melt processable adhesive onto a primer-treated substrate surface to provide a structural bond are described.

Abstract: A product authentication system includes one or more image capture devices that provide video data representative of an enhanced safety environment. The product authentication system can determine the continuous presence of a designated product during a time period, for example, during performance of a task in an enhanced safety environment. The video data can be spatiotemporally sliced according to multiple orientations with respect to the time axis and the two spatial axes. A plurality of data streams are created where the slices of each respective data stream have the same orientation. The data streams are processed according to one or more machine learning models, such as convolutional neural networks trained to determine whether the designated product is continuously present in the video data. An indicator of the continuous presence of the designated product can be provided to a downstream system and used to indicate whether functions of the downstream system are to be performed.

Abstract: Systems and methods for detecting the quality of signals captured by a sensor device monitoring a biological function. Sensor data associated with the sensor device is received, the sensor data representing time-series measurement samples of one or more parameters associated with the biological function, the sensor data including usable and unusable samples of the time-series measurements. Data representing two or more features of samples of the time-series measurements is extracted and filtered to reduce outliers in the extracted data based on an expected outlier ratio. A machine learning algorithm is then trained to identify events based on the filtered extracted data.

Abstract: At least some embodiments of the present disclosure directs to a method for processing an input image having an embedded element, comprising the steps of: computing one or more histograms of the input image; identifying a range of interest in one of the one or more histograms; and determining, by the processor, a threshold based on the range of interest. In some embodiments, a computing device processes the input image using the threshold to generate an output image.