Abstract: A security device, including at least first and second embossed, reflective metal diffraction gratings in respective regions: wherein the first diffraction grating exhibits, in incident white light, a zero-order output over a first area of substantially uniform grating period, wherein the zero-order output of the first diffraction grating comprises different coloured first and second sub-outputs for respective first and second polarisations parallel and perpendicular to the first diffraction grating; wherein the second diffraction grating exhibits, in incident white light, a zero-order output over a second area of substantially uniform grating period; wherein the zero-order output of the second diffraction grating comprises third and fourth sub-outputs for respective first and second polarisations parallel and perpendicular to the second diffraction grating; and wherein the first and second diffraction gratings exhibit, for incident white light, substantially the same first order diffraction efficiency over t

Abstract: A method of creating a security product includes providing a substrate, depositing a discontinuous layer of electrically conducting material on the substrate, and laser-annealing the discontinuous layer of electrically conducting material to generate nanoparticles exhibiting a surface plasmon resonance effect.

Abstract: Embodiments described herein provide methods, techniques, and apparatuses for controlling HVAC ventilation using a bypass mechanism called the Economizer Bypass Controller (“EBC”). The EBC is designed to be installed into any HVAC system, regardless of the economizer capabilities. The EBC provides “bypass functionality” as needed between an economizer and a damper mechanism to control outside air ventilation regardless of what the actual economizer is set up to do. Thus, the EBC can be used to meet ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) safety standards as they evolve, OSHA, and CDC guidelines as well as temporary or permanent health emergency bypass strategies such as to address increased or decreased ventilation needs due to, for example, pandemic emergencies or smokey conditions from wildfires.

Abstract: A lockable food handling apparatus provides ease of use to users. The apparatus includes a pair of arms each having a respective engagement member and end. The arms are affixed at a pivot point defined at a fastening point adjacent the ends of the pair of arms. A spring mechanism is positioned between the two arms which applies a linear force to the first arm and the second arm. Affixed to an inner surface of one of the pair of arms is a track that includes a retaining element positioned adjacent the ends of the pair of arms. Due to a difference in length of the ends of the pair of arms, one of the ends may engage the retaining element when the ends of the pair of arms are pivoted toward the retaining element, thus placing the apparatus into a reversible locked state.

Abstract: A door carrier includes a body formed of a first material, the body including an edge extending around a perimeter of the body. The door carrier includes a seal having a proximal end affixed to the edge and a distal end spaced from the proximal end, the seal being formed of a second material more resilient than the first material.

Abstract: A regulator assembly is disclosed. The regulator assembly can include a regulator having a gas inlet and a gas outlet. The regulator assembly can also include an extension pipe having a proximal end and a distal end. The regulator assemble can also include an orifice disposed in the extension pipe for modification of the gas flow.

Abstract: Location-based systems, such as a Real-time Location System (RTLS), are used to locate and track assets such as equipment, people, etc. In order to accomplish high accuracy in determining locations of assets (112-118), the information sent to the location server (108) from sensors (134, 138) should be accurate, relevant, sufficient, and timely. The limitations of a low bandwidth network between the sensors and the location server may pose challenges to reliably determining locations of assets. This invention is related to a hybrid lighting and location system (100), which involves the use of a system control device (106) and lighting devices (102, 104) that may include integrated sensors, transceivers, etc. Different embodiments are disclosed on apparatus, methods and systems to resolve the potential network congestion in such a hybrid system.

Abstract: A regulator assembly is disclosed. The regulator assembly can include a regulator having a gas inlet and a gas outlet. The regulator assembly can also include an extension pipe having a proximal end and a distal end. The regulator assemble can also include an orifice disposed in the extension pipe for modification of the gas flow.

Abstract: A door carrier includes a body formed of a first material, the body including an edge extending around a perimeter of the body. The door carrier includes a seal having a proximal end affixed to the edge and a distal end spaced from the proximal end, the seal being formed of a second material more resilient than the first material.

Abstract: To provide enhanced operation of data storage devices and systems, various systems, apparatuses, methods, and software are provided herein. In a first example, a data storage system is presented. The data storage system includes data storage devices comprising media for storage and retrieval of data. The data storage system includes a host interface configured to receive service level selections indicated by a host system for service level control of the one or more data storage devices. The data storage system includes a storage control system configured to operate the one or more data storage devices according to the service level selections.

Abstract: The present invention relates to a hydroelectric turbine recovery system, and in particular a system which significantly reduces the complexity of recovering a base mounted hydroelectric turbine from a deployment site on the seabed by providing a frame having an open mouth which can be advanced around the turbine before the frame is fully lowered into locking engagement with the base, thereby allowing the base, with the turbine thereon, to be recovered from the seabed.

Abstract: The present invention is concerned with a method of transporting a hydroelectric turbine system, and a vessel suitable for use in implementing said method, whereby the vessel comprises a raised or raisable section, which enables the vessel to pass over a portion of a base of the hydroelectric turbine system, when located in a flooded dry dock, which portion of the base projects above the water line in the dock.

Abstract: To provide enhanced operation of data storage devices and systems, various systems, apparatuses, methods, and software are provided herein. In a first example, a data storage system is presented. The data storage system includes data storage devices comprising media for storage and retrieval of data. The data storage system includes a host interface configured to receive service level selections indicated by a host system for service level control of the one or more data storage devices. The data storage system includes a storage control system configured to operate the one or more data storage devices according to the service level selections.

Abstract: A compressor electrical component enclosure may include a base and a lid. The base may include first and second opposing surfaces and a magnet. The magnet may be coupled to the second surface and may secure the base to a compressor shell. The lid may engage the base and cooperate with the base to define an electrical component housing.

Abstract: The present invention provides a method of managing a hydroelectric turbine array comprising installing a plurality of subsea foundations on a subsea surface and positioning interconnecting electrical cables between two or more of the subsea foundations, which cables then remain in position on the seabed during the operation of the array while allowing other components such as turbines to be removed for repair or the like without disturbing said cables.