摘要:
The present invention relates to a doped semiconductor nanocrystal layer comprising (a) a group IV oxide layer which is free of ion implantation damage, (b) from 30 to 50 atomic percent of a semiconductor nanocrystal distributed in the group IV oxide layer, and (c) from 0.5 to 15 atomic percent of one or more rare earth element, the one or more rare earth element being (i) dispersed on the surface of the semiconductor nanocrystal and (ii) distributed substantially equally through the thickness of the group IV oxide layer. The present invention also relates to a semiconductor structure comprising the above semiconductor nanocrystal layer and to processes for preparing the semiconductor nanocrystal layer.
摘要:
The present invention relates to an ultrasound diagnostic imaging system and method, wherein volumentric data in respect of an anatomical region of interest is acquired throughout a physiological cycle in relation thereto, a 3D view of the volumetric data is built, the motion of a structure of interest (in space and/or time) is analysed within the volume throughout the above-mentioned physiological cycle, and this motion is used to move a 3D view of the structure of interest, as presented to a user, so that it tracks the structure of interest and retains it centred in the 3D view.
摘要:
Aerosol particle analyzer (APA) for measuring an analyte in airborne particle is described. Airborne particles are first given an electrical charge and then drawn in air past an oppositely charged volume of an analysis liquid that exposed to the air at a small hole in a container, such as a capillary, that holds that analysis liquid. Electrostatic forces enhance the rate that the airborne particles collide with the small exposed volume of the analysis liquid in the hole. If the particles that collide with the analysis liquid contain the analyte, an optical property of the analysis liquid, such as the fluorescence, varies according to the amount of the analyte in the particles. This optical property is measured and the amount of analyte in the particles is determined from the measured optical property.
摘要:
An ear tip device for padding an in-ear headphone includes a cylinder, which comprises silicone and viscoelastic polyurethane foam so that the cylinder is resiliently compressible. A channel is axially positioned in and extends through the cylinder. The channel is configured to expand to allow insertion of a headphone and to contract to couple the cylinder to the headphone. The cylinder is configured to be compressed between digits of a hand of a user, positioning the user to at least partially insert the cylinder into an ear canal of the user. The cylinder is positioned to expand to conform to the ear canal and to couple the cylinder to the ear. The cylinder is configured to attenuate ambient noise and to direct a sound transmitted by the headphone to an eardrum of the user.
摘要:
An ear tip device for padding an in-ear headphone includes a cylinder, which comprises silicone and viscoelastic polyurethane foam so that the cylinder is resiliently compressible. A channel is axially positioned in and extends through the cylinder. The channel is configured to expand to allow insertion of a headphone and to contract to couple the cylinder to the headphone. The cylinder is configured to be compressed between digits of a hand of a user, positioning the user to at least partially insert the cylinder into an ear canal of the user. The cylinder is positioned to expand to conform to the ear canal and to couple the cylinder to the ear. The cylinder is configured to attenuate ambient noise and to direct a sound transmitted by the headphone to an eardrum of the user.
摘要:
The invention provides nematode-resistant transgenic plants and seed produced by expression of polynucleotides encoding certain plant polypeptides. The invention also provides methods of producing soybean cyst nematode-resistant transgenic plants in which those plant polynucleotides are expressed and expression vectors for use in such methods.
摘要:
A trailer box, comprising: a front wall, a back wall, a bottom wall, a top wall interconnected at 90 degree angles with a tubular metal frame comprising a plurality of structurally interconnected frame sections to form a hollow inner rectangular or trapezoidal portion and with opposed end portions comprising one or two hinged openings, wherein the plurality of structurally interconnected frame sections comprise four long horizontal frame sections, at least four vertical frame sections, and at least four horizontal frame sections providing a rectangular or trapezoidal frame, wherein the plurality of structurally interconnected frame sections comprise a metal selected from the group consisting of steel and aluminum, and wherein the trailer box is mounted on an underside of the trailer to provide storage for hauling 4×4 posts and/or dunnage.
摘要:
The present invention relates to an ultrasound diagnostic imaging system and method, wherein volumentric data in respect of an anatomical region of interest is acquired throughout a physiological cycle in relation thereto, a 3D view of the volumetric data is built, the motion of a structure of interest (in space and/or time) is analysed within the volume throughout the above-mentioned physiological cycle, and this motion is used to move a 3D view of the structure of interest, as presented to a user, so that it tracks the structure of interest and retains it centred in the 3D view.
摘要:
The present invention is a mobile method and system for automatically monitoring the location and use of tools using radio-frequency identification (“RFID”) tags. An RFID tag is secured to each tool with a unique numerical identifier. The RFID tag transmits its unique numerical identifier associated with each of the RFID tags using a RF signal, wherein the RF signal is transmitted at different intervals for each of the RFID tags. A receiver on a mobile platform reads the RF signals and determines the unique numerical identifier being transmitted. An information processor interconnected with the receiver analyzes the unique numerical identifier from a predetermined index, and the information processor determines whether any tools were not found on the index and automatically alerts a user when a tool is missing.
摘要:
A light emitting device includes an active layer structure, which has one or more active layers with luminescent centers, e.g. a wide bandgap material with semiconductor nano-particles, deposited on a substrate. For the practical extraction of light from the active layer structure, a transparent electrode is disposed over the active layer structure and a base electrode is placed under the substrate. Transition layers, having a higher conductivity than a top layer of the active layer structure, are formed at contact regions between the upper transparent electrode and the active layer structure, and between the active layer structure and the substrate. Accordingly the high field regions associated with the active layer structure are moved back and away from contact regions, thereby reducing the electric field necessary to generate a desired current to flow between the transparent electrode, the active layer structure and the substrate, and reducing associated deleterious effects of larger electric fields.