Abstract: A system for dispensing a pest attractant or repellent into a surrounding environment, comprising: a main reservoir for storing a fluid; a control volume coupled to the main reservoir, a first flow restrictor arranged to regulate a flow of the fluid between the main reservoir and the control volume; a second flow restrictor arranged to regulate a flow of the fluid out of the control volume; and, an evaporation medium positioned at or downstream of the first flow restrictor, wherein at least one of the first and the second flow restrictors is a controllable flow restrictor, and wherein the system further comprises electronically controllable actuation means for actuating the controllable flow restrictor.

Abstract: Articles comprising a surface or porous substrate and having on said surface or porous substrate a coating comprising microfibrillated cellulose or nanocellulose, methods of applying a coating comprising microfibrillated cellulose or nanocellulose to a surface or porous substrate, compositions comprising microfibrillated cellulose or nanocellulose, and the use of such compositions in methods of preparing an antimicrobial surface coating, and improving filtration efficiency and preparing an antimicrobial surface and/or antiviral surface coating.

Abstract: A system for detecting the presence of pests. In one aspect the system comprises an imaging system including: a housing including one or more pest entrances; a pest attractant arranged within the housing; a pest detection surface; an image capture device, said image capture device being configured to capture one or more images of the pest detection surface; and a triggering sensor arrangement for detecting a target pest that is on or about to enter the pest detection surface, said triggering sensor arrangement being configured to provide a trigger-signal if the presence of an object is detected, the image capture device being configured to take an image of the pest detection surface in response to the trigger-signal.

Abstract: One or more embodiments relates a single port surface acoustic wave sensor (SAW) device adapted for use in a wide range of operational temperatures and gas phase chemical species. The device includes a piezoelectric crystal substrate; at least one interdigitated electrode/transducer (IDT) positioned on the piezoelectric crystal substrate; and at least one conducting metal oxide film positioned on the piezoelectric crystal substrate and in communication with at least the IDT.

Abstract: Method and apparatus relating to ultrasound flow probes Measurement of time of flight of ultrasound pulses comprises: transmitting the pulses across a fluid flow; detecting a waveform (200) of the pulses, generating a cross-correlation between the waveform (200) and a tone (210) and identifying a plurality of peaks (220) in the cross-correlation; fitting a curve template (310) to the waveform at locations (300) corresponding to the peaks (220) and identifying the location (330) of the minimum error; performing a further cross-correlation (420) between the waveform (200) and the tone (210) over only a portion of the waveform (200) containing the minimum error location (330); and determining the temporal location corresponding to the maximum (430) of the further cross-correlation (430).

Abstract: A lens system comprises a first electro-active lens comprising a first focus sensor coupled to a first processor and a second electro-active lens comprising a second focus sensor coupled to a second processor. The first focus sensor periodically generates electromagnetic signals and detects electectromagnetic signals generated by the second focus sensor. The second focus sensor periodically generates electromagnetic signals and detects electectromagnetic signals generated by the second focus sensor. The first processor receives an indication of the second electromagnetic signals and, based on the received indication of the second electromagnetic signals, determines a relative convergence angle between the first and second electro-active lenses. Based on the determined relative convergence angle, the first processor determines a focal setting for the first electro-active lens and controls an electroactive element in the first electro-active lens, based on the determined focal setting.

Abstract: One or more embodiments relates a single port surface acoustic wave sensor (SAW) device adapted for use in a wide range of operational temperatures and gas phase chemical species. The device includes a piezoelectric crystal substrate; at least one interdigitated electrode/transducer (IDT) positioned on the piezoelectric crystal substrate; and at least one conducting metal oxide film positioned on the piezoelectric crystal substrate and in communication with at least the IDT.

Abstract: A lens system comprises a first electro-active lens comprising a first focus sensor coupled to a first processor and a second electro-active lens comprising a second focus sensor coupled to a second processor. The first focus sensor periodically generates electromagnetic signals and detects electectromagnetic signals generated by the second focus sensor. The second focus sensor periodically generates electromagnetic signals and detects electectromagnetic signals generated by the second focus sensor. The first processor receives an indication of the second electromagnetic signals and, based on the received indication of the second electromagnetic signals, determines a relative convergence angle between the first and second electro-active lenses. Based on the determined relative convergence angle, the first processor determines a focal setting for the first electro-active lens and controls an electroactive element in the first electro-active lens, based on the determined focal setting.

Abstract: Method and apparatus relating to ultrasound flow probes Measurement of time of flight of ultrasound pulses comprises: transmitting the pulses across a fluid flow; detecting a waveform (200) of the pulses, generating a cross-correlation between the waveform (200) and a tone (210) and identifying a plurality of peaks (220) in the cross-correlation; fitting a curve template (310) to the waveform at locations (300) corresponding to the peaks (220) and identifying the location (330) of the minimum error; performing a further cross-correlation (420) between the waveform (200) and the tone (210) over only a portion of the waveform (200) containing the minimum error location (330); and determining the temporal location corresponding to the maximum (430) of the further cross-correlation (430).

Abstract: A method and apparatus for improving detection of radiation emitted from object that includes a radiation detection sensor with a substrate and an array of columns protruding from a top surface of the substrate. A radiation sensitive layer, such as TLC, and a thermal conversion material, such as an absorber, are disposed upon a top surface of the columns within the array thereby producing an array of radiation detectors. The columns provide thermal isolation between the radiation detectors and the substrate, and spatial separation of columns within the array provide radiant and thermal isolation between the radiation detectors upon the tops of individual columns. Producing an image of the array of radiation detectors allows detection of the radiation emitted from an object.

Abstract: A method and apparatus for improving detection of radiation emitted from object that includes a radiation detection sensor with a substrate and an array of columns protruding from a top surface of the substrate. A radiation sensitive layer, such as TLC, and a thermal conversion material, such as an absorber, are disposed upon a top surface of the columns within the array thereby producing an array of radiation detectors. The columns provide thermal isolation between the radiation detectors and the substrate, and spatial separation of columns within the array provide radiant and thermal isolation between the radiation detectors upon the tops of individual columns. Producing an image of the array of radiation detectors allows detection of the radiation emitted from an object.

Abstract: A method and apparatus for improving detection of radiation emitted from object that includes a radiation detection sensor with a substrate and an array of columns protruding from a top surface of the substrate. A radiation sensitive layer, such as TLC, and a thermal conversion material, such as an absorber, are disposed upon a top surface of the columns within the array thereby producing an array of radiation detectors. The columns provide thermal isolation between the radiation detectors and the substrate, and spatial separation of columns within the array provide radiant and thermal isolation between the radiation detectors upon the tops of individual columns. Producing an image of the array of radiation detectors allows detection of the radiation emitted from an object.

Abstract: A radiation detection sensor includes a radiation detector that is segmented into an array of mapping elements, or detectors. The mapping elements may be micro-disposed, such that individual mapping elements are substantially thermally isolated from each other and comprise pixels of a visual thermal energy map. The mapping elements of the radiation detector may be minimally connected to adjacent radiation detectors, or the mapping elements may be substantially physically isolated from each other.

Abstract: A method and apparatus for improving detection of radiation emitted from object that includes a radiation detection sensor with a substrate and an array of columns protruding from a top surface of the substrate. A radiation sensitive layer, such as TLC, and a thermal conversion material, such as an absorber, are disposed upon a top surface of the columns within the array thereby producing an array of radiation detectors. The columns provide thermal isolation between the radiation detectors and the substrate, and spatial separation of columns within the array provide radiant and thermal isolation between the radiation detectors upon the tops of individual columns. Producing an image of the array of radiation detectors allows detection of the radiation emitted from an object.