Abstract: Embodiments are directed towards a use of a supported biphenylphenol polymerization catalyst to make a polymer via a slurry-phase polymerization process, where the supported biphenylphenol polymerization catalyst is made from a biphenylphenol polymerization precatalyst of Formula I.

Abstract: This document describes a light-sealing gasket with crossbar force distribution. The gasket can be used in an electronic device with a sensor package that is capable of transmitting and receiving signals and is positioned behind a display of the device. The gasket provides a shield between the receive signals and the transmit signals, prevents signal crosstalk, and protects the delicate panel layer of the display. Use of this gasket in an electronic device allows manufacturers to add more features to the device and enrich the user experience.

Abstract: A device that detects bacterial endospores suspended in the atmosphere is provided. The device having an aerosol concentrator, a collection vessel containing a lanthanide salt solution, an excitation energy source and an optical set-up that directs the excitation energy source to the lanthanide salt solution and collects photoluminescence generated by the lanthanide salt solution upon receipt of the excitation energy source. A system and method for detecting bacterial endospores is also disclosed.

Abstract: A method and system for investigating properties of an object comprising: a transmitter, including a radiation source, the transmitter providing incident radiation having a plurality of predetermined polarization states; the incident radiation illuminating an object and thereby causing the object to emit photoemission; a receiver, receiving photoemission from the object when the object is illuminated by the incident radiation, the receiver including a detector, the detector providing photoemission intensity data; and signal processing circuitry, in electrical communication with the detector, the signal processing circuitry determining three-dimensional information relating to the object from the photoemission intensity data for each of the plurality of incident polarization states.

Abstract: An apparatus for determining the depolarization efficiency of a environment includes a transmitter, a receiver, and signal processing circuitry. A reference object is located within the environment at a reference distance. The transmitter includes a radiation source providing incident radiation that has an initial polarization as it enters the environment. The receiver receives returned radiation from the reference, which may be diffuse reflection or photoluminescence. The signal processing circuitry calculates the depolarization efficiency of the environment from the initial polarization, luminescence or final polarization, and the reference distance. A method of determining depolarization efficiency includes directing incident radiation having initial polarization through an environment onto a reference, detecting returned radiation from the reference, and calculating the depolarization efficiency using the initial polarization and the luminescence or final polarization.

Abstract: An apparatus for generating a shared quantum key between a sender and a receiver comprises a sending apparatus which generates entangled photon pairs, and a receiving apparatus. A shared quantum key can be generated using temporal coincidences between photon detection events. For example, coincidences may be determined between sender and receiver photon detection events using detection data shared through a non-secure communications link between the sender and receiver. The quantum key can be used in encrypted communications. Similar apparatus and methods can be used for quantum imaging.

Abstract: A device for detecting bacterial endospores in a sealed container. The device has a suction tube connected to an aerosol concentrator containing a lanthanide salt solution, a suction pump engaged to the aerosol concentrator, an excitation energy source and an optical set-up for directing the excitation energy source to the lanthanide salt solution and collecting photoluminescence generated by the excited lanthanide salt solution. A method for detecting bacterial endospores is also provided.

Abstract: The invented methods are effective for the detection and quantification of bacterial spores in a sample medium. A lanthanide such as europium or terbium is combined with a medium to be tested for endospore content. The lanthanide will react with calcium dipicolinate present in any bacterial spores in the sample medium to produce a lanthanide chelate, specifically, terbium or europium dipicolinate. The lanthanide chelate has distinctive absorbance and emission spectrums that can be detected using photoluminescence testing, for example. The occurrence of emission from the sample medium upon excitation at wavelengths distinctive of the lanthanide chelate thus reveals the presence of spores in the sample medium. The concentration of spores can be determined by preparing a calibration curve that relates absorbance or emission intensities to spore concentrations for test samples with known spore concentrations.