Abstract: A headset communication device includes at least one processor configured to transmit, via a dedicated virtual communication channel of a wireless communication protocol, local beacon data to one or more remote headset communication devices within a work environment, to discover a remote headset communication device included in the one or more remote headset communication devices by receiving, via the dedicated virtual communication channel of the wireless communication protocol, remote beacon data that is transmitted by the remote headset communication device, to automatically synchronize, based on the remote beacon data, the headset communication device with the remote headset communication device, and, to transmit, via one or more additional virtual communication channels of the wireless communication protocol, local audio communication data to the one or more remote headset communication devices.

Abstract: Provided are aqueous primer compositions and methods that can be useful for protecting primary structures on an aircraft. The primer composition can contain a thermosetting resin dispersion in water, a coalescent solvent in which the thermosetting resin is at least partially soluble, a first curative that is substantially water-insoluble, and a second curative that is substantially water-soluble. Optionally, the primer composition further contains an epoxy silane, where the primer composition is substantially free of any liquid or water-soluble curatives containing a primary or secondary amine group.

Abstract: A system includes a distribution tool, a backing, a first plurality of abrasive particles and a second plurality of abrasive articles. The distribution tool includes a first section and a second section. The first section is configured to receive the first plurality of abrasive particles and pass the first plurality of abrasive particles through one or more of the plurality of slots to the backing. The second plurality of abrasive particles differ in at least one of a size, an average weight and a shape from the first plurality of abrasive particles. The second section is configured to receive the second plurality of abrasive particles and pass the second plurality of abrasive particles through one or more of the plurality of slots to the backing.

Abstract: Pressure sensitive adhesives are provided comprising an adhesive copolymer which is a copolymer of a set of monomers comprising: a) 41.0-49.0 weight percent of isobornyl acrylate (IBOA); b) 0.0-4.5 weight percent of one or more basic-functional polar monomers comprising a polymerizable double bond; and c) 46.5-58.9 weight percent of one or more alkyl (meth)acrylate monomers, where the alkyl groups are selected from linear and branched alkyl groups comprising 2-12 carbon atoms and branched alkyl groups comprising 13-20 carbon atoms and wherein weight percentages are weight percent of all monofunctional monomers comprising the adhesive copolymer. In another aspect, the present disclosure provides tapes comprising the pressure sensitive adhesive according to the present disclosure. In some embodiments, the tapes are flexographic plate mounting tapes.

Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.

Abstract: An inspection device for an optical ferrule includes one or more reflectors. Each reflector has a mating surface and a mirror disposed at an oblique angle with respect to the mating surface. Each reflector is configured to mate with the optical ferrule when the optical ferrule is disposed within a housing of an optical connector. When the mating surface of the reflector is in mated contact with the mating surface of the optical ferrule, the mirror is positioned to provide a reflected view of at least a portion of a mating surface of the optical ferrule.

Abstract: Cushioning articles or structures are provided including a cell layer with an array of cells interconnected with each other. Each of the cells includes at least three cell walls extending between the first and second major surfaces thereof. The cell walls are shared by the adjacent cells, and the cell layer further includes a land region located at the second major surface and connecting the at least three cell walls. A base layer is attached to the second major surface of the cell layer to form a sheet.

Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.

Abstract: An optical connector includes a first attachment area for receiving and permanently attaching to an optical waveguide. A light coupling unit is disposed and configured to move translationally and not rotationally within the housing of the connector. The light coupling unit includes a second attachment area for receiving and permanently attaching to an optical waveguide received and permanently attached at the first attachment area. The light coupling unit also includes light redirecting surface. The light redirecting surface is configured such that when an optical waveguide is received and permanently attached at the first and second attachment areas, the light redirecting surface receives and redirects light from the optical waveguide. The optical waveguide limits, but does not prevent, a movement of the light coupling unit within the housing.

Abstract: In some examples, a method includes selecting, by a coding computing device, a particular identifier from a set of identifiers generated by an identifier allocation authority, wherein the set of identifiers are included within a global set of identifiers maintained by the identifier allocation authority; coding, by the coding computing device, the particular identifier from the set of identifiers into an optical element set that represents an optical code comprising a plurality of finder optical elements arranged in a pattern to localize the optical code within an image, a plurality of context optical elements representing context information, and a plurality of content optical elements representing content information; and generating a visual output of the optical code that is decodable to the particular identifier which, in combination with at least one other parameter associated with the optical element set, comprises a globally unique identifier in a set of globally unique identifiers.

Abstract: Systems and methods for estimating a replacement status of an air filter in an HVAC system, based on obtaining data correlated with the temperature of air outputted by the HVAC system as a function of time.

Abstract: Radio frequency identification (RFID) tags are described that include a substrate, an antenna disposed on a major surface of the substrate, an integrated circuit (IC) disposed on a major surface of the substrate, and one or more stand-alone capacitors disposed on a major surface of the substrate. The antenna may have a length less than about 2 meters between first and second ends of the antenna. The integrated circuit may have an effective capacitance less than about 1000 pF and the one or more stand-alone capacitors may have an equivalent capacitance greater than 500 pF and may be connected in parallel with the antenna and the IC.

Abstract: A fluorine-free composition includes at least one polycarbodiimide compound derived from a carbodiimidization reaction of a carbodiimidization reaction mixture comprising at least one oligomer, wherein the oligomer comprises at least one isocyanate end group and at least two repeating units, wherein each of the at least two repeating units comprises at least one hydrocarbon group having at least 16 carbon atoms. The composition may also include at least one paraffin wax. Such compositions are useful for treating fibrous substrates to enhance their water-repellency.

Abstract: Object: To provide a film cutting jig and a method of mounting a film that can easily mount a film that not only covers a roof of an object but also wraps around to the sidewalls of the object. Resolution means: The present invention provides a film cutting jig used when cutting a film to cover at least a roof of an object that includes a sidewall and the roof, the film cutting jig including: a main jig body that is to be attached to the object to continuously surround a covered region that includes the roof and at least a portion of a top edge side of the sidewall when the object is viewed from above, wherein a guide for guiding a cutting tool to cut the film is formed in the main jig body, and wherein the guide is formed to continuously surround the covered region when the object is viewed from above.

Abstract: A method is provided. The method includes providing an article, the article including a nonwoven substrate having a copolymer grafted thereto, the copolymer including interpolymerized monomer units of a quaternary ammonium-containing ligand monomers; an amide monomer; an oxy monomer; and a coating on the nonwoven substrate, the coating including a plurality of test microorganisms, an enzyme or a second substrate; and contacting the article with a detection medium for a period of time.

Abstract: A method for tracking procedures performed on personal protection equipment (PPE) and actions of individuals includes the following steps. An article of PPE configured with a smart tag is provided to an individual prior to performance of a task. After the individual performs the task, the article of PPE is processed. Information is retrieved from the smart tag during at least one of: before, during and after processing the article of PPE. After the performance of the task, the individual's data is read and the individual enters into a designated area.

Abstract: In certain embodiments, the present disclosure relates to low emissivity films and articles comprising them. Other embodiments are directed to methods of reducing emissivity in an article comprising the use of low emissivity films. In some embodiments, the low emissivity films comprise a metal layer and a pair of layers, one comprising a metal oxide such as zinc tin oxide and the other layer comprising a silicon compound, adjacent each of the two sides of the metal layer. This type of assembly may serve various purposes, including being used as a sun control film. These constructions may be used, for example, as window films on glazing units for reducing transmission of infrared radiation across the film in both directions.

Abstract: Water electrolyzer comprising a membrane having first and second opposed major surfaces, a thickness extending between the first and second major surfaces, and first, second, and third regions equally spaced across the thickness, wherein the first region is the closest region to the first major surface, wherein the second region is the closest region to the second major surface, wherein the third region is located between the first and second regions, wherein the first and third regions are each essentially free of both metallic Pt and Pt oxide, and wherein the second region comprises at least one of metallic Pt or Pt oxide; a cathode comprising a first catalyst on the first major surface of the membrane; and an anode comprising a second catalyst on the second major surface of the membrane.

Abstract: Hyperbranched polydiorganosiloxane polyoxamide polymers are formed from reaction mixtures containing AXg and BZm compounds where either A or B is a siloxane-based group, and each X is either an oxalylamino-functional group or an amino-functional group, and each Z is either an amino-functional group or an oxylamino-functional group, such that upon reaction X and Z form an oxamide bond.

Abstract: A system and method of selecting personal protection equipment (PPE) for a worker. The system identifies sets of PPEs and simulates a fitting of the identified PPE sets to the worker. Fitting includes, for each of the identified PPE sets, selecting a three-dimensional computer model for each article of the PPE set, placing the computer model of each of the PPE articles of the PPE set being fitted on a computer model representing the worker, identifying collisions between the computer models as placed, and taking an action based on the identified collisions.