Abstract: A magnetic film includes a plurality of magnetically permeable particles dispersed between opposing first and second major surfaces of the magnetic film. The first and second major surfaces are spaced apart a distance D. The particles are agglomerated so as to form a plurality of substantially continuous layers of particles generally extending along orthogonal first and second directions and arranged along a third direction. Each substantially continuous layer of particles has a length L along the first direction from a first to an opposing second edge of the magnetic film and a width W along the second direction extending from the first to the second major surface. L/D?100.

Abstract: A thermal interface layer includes pluralities of first and second particles dispersed in a polymeric binder at a total loading V in a range of about 40 volume percent to about 70 volume percent. The first and second particles have different compositions. The first particles include one or more of iron or nickel. The second particles include one or more of aluminum, magnesium, silicon, copper, or zinc. The thermal interface layer has a thermal conductivity in a thickness direction of the thermal interface layer in units of W/mK of at least K=5.1?0.17 V+0.002 V2.

Abstract: An electrically conductive adhesive layer includes a plurality of particles dispersed between opposing first and second major surfaces of the electrically conductive adhesive layer. The first and second major surfaces are spaced apart a distance D. The particles are agglomerated so as to form a plurality of substantially continuous layers of particles generally extending along orthogonal first and second directions and arranged along a third direction. Each substantially continuous layer of particles has a length L along the first direction from a first to an opposing second edge of the electrically conductive adhesive layer and a width W along the second direction extending from the first to the second major surface. L/D ? 100. At least some of the particles are electrically conductive.

Abstract: A method of aligning abrasive particles on a substrate. The method comprises providing a substrate. The method also comprises providing abrasive particles. The method also comprises generating a modulated electrostatic field. The modulated electrostatic field is configured to have a first effective direction at a first time and a second effective direction at a second time. The electrostatic field is configured to cause the abrasive particles to align rotationally in both a z-direction and a y-direction.

Abstract: A fall arresting device including a device housing, a shaft within the housing, a rotor assembly rotatably connected to the shaft that includes a drum and a disc having at least one region of a ferromagnetic material, an extendable lifeline connected to the drum, a magnetic sensor positioned stationary relative to the device housing and adjacent to the disc, and a that includes a hard-magnetic material. The magnet positioned stationary relative the device housing and the magnetic sensor, where the magnetic sensor is configured to detect a change in a magnetic field produced by the magnet when the disc rotates about the shaft, the change in the magnetic field induced by the at least one region of the ferromagnetic material being brought within close proximity to the magnet as the disc rotates.

Abstract: A shaped abrasive particle is presented. The shaped abrasive particle has a first and second surface. The first and second surfaces are substantially parallel to each other and separated by a thickness. Each of the first and second surfaces have a surface profile, which includes a plurality of corners and a plurality of edges connecting the plurality of corners. The shaped abrasive particle also includes a recess included wholly within one of the plurality of edges, wherein the recess is a concave void extending into the surface profile. The shaped abrasive particle also includes a magnetically responsive coating. The magnetically responsive coating causes the shaped abrasive particle to be responsive to a magnetic field. The shaped abrasive particle, when exposed to the magnetic field, experiences a net torque that causes the shaped abrasive particle to orient with respect to the magnetic field such that each of the first and second surfaces are substantially perpendicular to a backing.

Abstract: A magnetic shielding film includes opposing first and second major surfaces and a plurality of particles dispersed therebetween, each particle having a magnetic permeability, a thickness H along a thickness direction of the particle, and a longest dimension L along a length direction of the particle orthogonal to the thickness direction, L/H greater than or equal to 2, the particles defining a plurality of voids therebetween, the length directions of at least 60% of the particles oriented within 5.5 degrees of a same orientation direction.

Abstract: A bonded abrasive wheel comprises magnetizable abrasive particles retained in an organic binder. The bonded abrasive wheel has a central portion adjacent to a central hub, an outer circumference and a rotational axis extending through the central hub. The magnetizable abrasive particles adjacent to the central hub are aligned at an average angle of less than 35 degrees with respect to the rotational axis, and the magnetizable abrasive particles adjacent to the outer circumference of the bonded abrasive wheel are aligned at an average angle that is from 35 and 90 degrees, inclusive, with respect to the rotational axis. Methods of making a bonded abrasive wheel are also disclosed.

Abstract: A filtration system for a tank includes a filter housing, at least a portion of which is disposed in a tank and in fluidic communication with a dielectric fluid within the tank; at least one filtration element, disposed within the filter housing; and a fluid pump, at least a portion of which is disposed within the filter housing and immersed in the dielectric fluid, the fluid pump in fluidic communication with the at least one filtration element.

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: In some examples, a system includes an article of personal protective equipment (PPE) having at least one sensor configured to generate a stream of usage data; and an analytical stream processing component comprising: a communication component that receives the stream of usage data; a memory configured to store at least a portion of the stream of usage data and at least one model for detecting a safety event signature, wherein the at least one model is trained based as least in part on a set of usage data generated by one or more other articles of PPE of a same type as the article of PPE; and one or more computer processors configured to: detect the safety event signature in the stream of usage data based on processing the stream of usage data with the model, and generate an output in response to detecting the safety event signature.

Abstract: A method of aligning abrasive particles on a substrate. The method comprises providing a substrate. The method also comprises providing abrasive particles. The method also comprises generating a modulated electrostatic field. The modulated electrostatic field is configured to have a first effective direction at a first time and a second effective direction at a second time. The electrostatic field is configured to cause the abrasive particles to align rotationally in both a z-direction and a y-direction.

Abstract: An ultrasonic coupling device. The ultrasonic coupling device includes a foam having an aperture; a hydrogel wherein the hydrogel has a water content of at least 10 wt %, wherein at least part of the hydrogel locates in the aperture of the foam; and a near field communication device.

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: An ultrasonic coupling device. The ultrasonic coupling device includes a hydrogel wherein the hydrogel has a water content of at least 10 wt %; and a near field communication device.

Abstract: At least some aspects of the present disclosure feature a mobile sensing system comprising a sensing device for measuring a thermal property of an object, comprising an RF circuit and an antenna electronically coupled to the RF circuit, a sensor electronically coupled to the RF circuit, and a thermal source thermally coupled to the sensor and electronically coupled to the RF circuit, a mobile device having a processor, an RF reader connected to or integrated with the mobile device, wherein the RF reader is configured to interrogate the sensing device; wherein the sensing device receives power when the RF reader interrogates the sensing device and provides at least a portion of the power to the thermal source.

Abstract: In some examples, a system includes an article of personal protective equipment (PPE) having at least one sensor configured to generate a stream of usage data; and an analytical stream processing component comprising: a communication component that receives the stream of usage data; a memory configured to store at least a portion of the stream of usage data and at least one model for detecting a safety event signature, wherein the at least one model is trained based as least in part on a set of usage data generated by one or more other articles of PPE of a same type as the article of PPE; and one or more computer processors configured to: detect the safety event signature in the stream of usage data based on processing the stream of usage data with the model, and generate an output in response to detecting the safety event signature.

Abstract: A data communication apparatus, system, and method are described. The data communication system comprises a transceiver disposed on an entrance port to an enclosure, such as an underground enclosure. The transceiver includes a housing, the housing mountable to the entrance port, wherein the transceiver is configured to communicate with a network outside of the underground enclosure. The data communication system also includes a monitoring device disposed in the underground enclosure that provides data related to a real-time condition within the underground enclosure. The data communication system also includes a sensor analytics unit to process the data from the monitoring device/sensor and generate a processed data signal and to communicate the processed data signal to the transceiver.

Abstract: Electrical conductors are disclosed. More particularly, undulating electrical conductors are disclosed. Certain disclosed electrical conductors may be suitable to be disposed on flexible or stretchable substrates.

Abstract: A fall protection device comprises an energy harvester to generate electrical power in response to movement of an elongate member and a circuit powered by the generated electrical power; an impact indicator connected to an elongate member, a controller connected to the elongate member and/or the impact indicator to generate a message in response to impact, and a transmitter connected to the controller to transmit the message; and/or a sensor connected to an elongate member and a controller connected to the sensor to generate a message in response to movement of the elongate member. The fall protection device could include a generator to generate electrical power, an energy storage capacitor to store the generated electrical power, a controller powered by the energy storage capacitor to generate a message in response to action, and a wireless transmitter powered by the energy storage capacitor to transmit the message.