46results about How to "Simple and efficient design" patented technology

The present invention relates to devices and methods for the measurement and / or for the specification of the perceptual intensity of a visual image, or the perceptual distance between a pair of images. Grayscale test and reference images are processed to produce test and reference luminance images. A luminance filter function is convolved with the reference luminance image to produce a local mean luminance reference image. Test and reference contrast images are produced from the local mean luminance reference image and the test and reference luminance images respectively, followed by application of a contrast sensitivity filter. The resulting images are combined according to mathematical prescriptions to produce a Just Noticeable Difference, JND value, indicative of a Spatial Standard Observer, SSO. Some embodiments include masking functions, window functions, special treatment for images lying on or near borders and pre-processing of test images.

A fire suppressant system having a pipe system, spray nozzles connected to the pipe system and a control system for selectively charging the pipe system with foam. The control system includes a pilot line for generating a signal based upon sensing an environmental parameter and a first control valve for activating the system based upon the signal. Preferably, the first control valve forms i) an interior cavity for mixing the compressed air and compressed air liquid, ii) an outlet in fluid communication with the interior; iii) a first inlet, oriented substantially perpendicular to a flow through the outlet, in fluid communication with the interior and the compressed air; and iv) a second inlet, oriented substantially perpendicular to the flow, in fluid communication with the interior and the compressed air liquid.

The present invention relates to devices and methods for the measurement and / or for the specification of the perceptual intensity of a visual image, or the perceptual distance between a pair of images. Grayscale test and reference images are processed to produce test and reference luminance images. A luminance filter function is convolved with the reference luminance image to produce a local mean luminance reference image. Test and reference contrast images are produced from the local mean luminance reference image and the test and reference luminance images respectively, followed by application of a contrast sensitivity filter. The resulting images are combined according to mathematical prescriptions to produce a Just Noticeable Difference, JND value, indicative of a Spatial Standard Observer, SSO. Some embodiments include masking functions, window functions, special treatment for images lying on or near borders and pre-processing of test images.

A portable dust collector for woodshop or other use with portable tools has a conic body that is supported on a tripod carriage formed of three legs attaching to gussets at the sides of the conic body. A divider plate within the conic body divides it into a cyclonic chamber between the divider plate and the lower nose, and a fan chamber between the divider plate and a motor plate that closes the upper mouth of the conic body. A final filter cartridge is fitted onto the outlet pipe, so that the dust collector exhausts clean, filtered air into the ambient. The final filter may be supported from a 90-degree elbow, with a removable tray for catching process dust that is knocked off the interior of the filter. The process dust in the cyclone settles into a dust collection barrel supported on a barrel cradle.

Methods, apparatus and computer program products provide channel state information (CS1) measurement and reporting for a segment carrier in certain situations. An apparatus such as a base station may determine whether CSI is needed for a channel of a segment carrier comprising a segment portion and a contiguous bandwidth extension of a backward compatible carrier utilized by a base station for wireless communications with a mobile terminal. In response to determining that CSI is needed, the apparatus configures the mobile terminal to communicate channel state information from the mobile terminal to the base station. In other embodiments, an apparatus such as a mobile terminal is configured to receive configuration data indicating whether CSI is to be measured by the mobile terminal, and measuring the CSI and communicating the CSI to the base station in response to the configuration data.

A portable dust collector for woodshop or other use with portable tools has a conic body that is supported on a tripod carriage formed of three legs attaching to gussets at the sides of the conic body. A divider plate within the conic body divides it into a cyclonic chamber between the divider plate and the lower nose, and a fan chamber between the divider plate and a motor plate that closes the upper mouth of the conic body. A final filter cartridge is fitted onto the outlet pipe, so that the dust collector exhausts clean, filtered air into the ambient. The final filter may be supported from a 90-degree elbow, with a removable tray for catching process dust that is knocked off the interior of the filter. The process dust in the cyclone settles into a dust collection barrel supported on a barrel cradle.

An improved radome comprises at least one conductive flat structure integrally incorporated in the material of the radome, which acts as a reflector for a mobile radio antenna at least partially enclosed within the radome.

A leg rest assembly for an examination table that is adaptable to extend the length of the table or to act as a kneeler section is disclosed. The extension section of the assembly has an efficient design that allows for the assembly to be easily changed from an extension section to a kneeler. A latching mechanism to hold the assembly in an extended position outwardly from the table is designed separately from the guide mechanism that move the assembly into a kneeler configuration.

A leg rest assembly for an examination table that is adaptable to extend the length of the table or to act as a kneeler section is disclosed. The extension section of the assembly has an efficient design that allows for the assembly to be easily changed from an extension section to a kneeler. A latching mechanism to hold the assembly in an extended position outwardly from the table is designed separately from the guide mechanism that move the assembly into a kneeler configuration.

A support panel for thin brick, comprising a metal sheet, an array of groove retaining tabs having first tab edges, said first tab edges protruding from said sheet having at an upward angle of less than about 45 degrees, for a distance of less than about one quarter inch, and an array of mortar lock tabs having second tab edges, said second tab edges protruding from said sheet at a downward angle of greater than about 45 degrees, said array of mortar lock tabs being offset vertically from said array of groove retaining tabs, wherein, said array of groove retaining tabs are adapted to engage shallow dovetail grooves formed in the rear of thin bricks, and said mortar lock tabs are adapted, when embedded within a cured mortar matrix, to exert, in response to a tensile force away from said metal sheet, a force along a vertical axis, on the brick, in an opposite direction to a force applied to the brick along a vertical axis by said groove retaining tab, to thereby retain the brick against the panel.

An inflow control valve for controlling the flow of fluids into a generally horizontal production well located in an underground reservoir, where the production well has a well casing, a production tubing located within the casing and an annulus between the production tubing and the casing. The inflow control valve has a valve body having a threaded portion for connecting the valve body to the production tubing, a through bore for connecting the valve body to an inside bore of said production tubing and an outside surface. The valve also has at least one inlet passageway extending through the valve body between the outside surface and said through bore and an inlet opening on said at least one inlet passageway formed on the outside surface of the valve body. The valve has a closure member for opening and closing said inlet opening, the closure member being located between the inlet opening and the annulus and a means to bias the closure member to an open position when the inlet opening is submerged in a liquid to be recovered from the reservoir and to bias the closure member to a closed position in the absence of the liquid at the inlet opening. A method of using such a device in a an extraction process to recover underground hydrocarbons is also disclosed.

A phase-locked-loop (PLL) circuit, that includes: a differential phase-frequency detector, a charge pump and at least one logical gate disposed therebetween for providing cancellation of pulses of a substantially equivalent value output by the detector to the charge pump; wherein the at least one logical gate receives the detector output signals and generates control signals for the charge pump such that the pulses of substantially equivalent value are eliminated.

The invention discloses a power supply device and a power supply system, which are connected to an Ethernet cable. The power supply device comprises a switching circuit, a power circuit and a detection circuit. The power circuit is coupled to an output end of a power supply through the switching circuit. The detection circuit controls the state of the switching circuit according to a first resistance value between a first pin and a second pin in the Ethernet cable. The invention also discloses the power supply system provided with the power supply device.

A support panel for thin brick, comprising a metal sheet, an array of groove retaining tabs having first tab edges, said first tab edges protruding from said sheet having at an upward angle of less than about 45 degrees, for a distance of less than about one quarter inch, and an array of mortar lock tabs having second tab edges, said second tab edges protruding from said sheet at a downward angle of greater than about 45 degrees, said array of mortar lock tabs being offset vertically from said array of groove retaining tabs, wherein, said array of groove retaining tabs are adapted to engage shallow dovetail grooves formed in the rear of thin bricks, and said mortar lock tabs are adapted, when embedded within a cured mortar matrix, to exert, in response to a tensile force away from said metal sheet, a force along a vertical axis, on the brick, in an opposite direction to a force applied to the brick along a vertical axis by said groove retaining tab, to thereby retain the brick against the panel.

The invention discloses a polarization-controlled surface plasmon bifunctional metasurface and a design and preparation method thereof. The metasurface longitudinally adopts a metal-medium-metal three-layer structure, the surface includes a trapezoidal unit structure array, independent regulation and control of the amplitude and the phase of light in different polarization states are achieved, phase regulation and control can be conducted on polarized light in the x direction, and the function of a deflector is achieved. Amplitude regulation and control can be carried out on polarized light inthe y direction to achieve a structural color function. According to the bifunctional structure, the integration level and the regulation and control diversity of the metasurface structure are improved, deflection and structural color are independent of each other and supplement each other, and the combination of the two functions provides a brand-new solution for anti-counterfeiting, measurementof birefringence of biological tissue and measurement of optical rotation of biomolecules.

The invention discloses a method for testing biaxial strength of a thermal barrier coating. The method comprises the following steps of: (1) measuring thickness t, radius R, elasticity modulus E and poisson ratio v of each layer of a thermal barrier coating disc test piece, placing three test piece support parts at the periphery on the ceramic layer side on the bottom of the thermal barrier coating disc test piece in a symmetric distribution manner along the symmetric center of the thermal barrier coating disc test piece, and measuring the distance from a support point to the symmetric center of the thermal barrier coating disc test piece; (2) placing a loading point of a loading pressure head of a piston loading device on the surface on the base side on the upper part of the thermal barrier coating disc test piece in such a manner that the center of the loading pressure head is superposed with the center of the thermal barrier coating disc test piece, applying loads on the thermal barrier coating disc test piece until an initial break occurs at the center region on the surface of the ceramic layer, and recording the loading force Pcr at the time; and (3) calculating the biaxial tensile strength S of the thermal barrier coating disc test piece according to the loading force Pcr. The method provided by the invention can test the biaxial strength of the tested coasting simply and effectively, thereby laying the foundation for design and development of an efficient coating system.

A skateboard wheel truck assembly has a suspension including a non-circular base bushing with wings or arms extending laterally outwardly, providing for increased stability and control and reduction of wobble in use of the skateboard.

A recirculation device for a fuel cell system includes a recirculation line connecting the outlet and inlet of the anode region of the fuel cell. The recirculation device includes a liquid separator situated in the area of the recirculation line and a discharge line having a discharge valve for liquid and / or gases. A bubble sensor for controlling the discharge valve is situated in the area of the discharge line. A method for discharging liquid and / or gases from a recirculation device opens and closes the discharge valve as a function of an event detected by the bubble sensor.

The invention relates to a generating method of a geographic information service composition designer based on model drive (MDA), which belongs to the technology of geographic information. In the invention, a model which is a platform specific model (PSM) for describing geographic space information service composition in three aspects of a service structure, a control structure and a data transmission structure is designed by taking the thought of MDA as the basis, and then PSW is translated into program source codes and the program source codes run to obtain a service composition designer software. The method is specially used for abstractly expressing the composition relation between geographic space information services and effectively reduces the complexity of the service composition and improves the efficiency and the interoperability of the service composition while establishing a geographic information service composition model architecture with unified regulations.

The invention discloses a wideband coded metamaterial quick design method, and relates to the technical field of novel artificial electromagnetic materials. According to the method, based on a relatively-low-Q-value metamaterial unit structure, through a nonlinear fitting method, on the premise of no large-scale electromagnetic simulation software calculation, description of a structure unit sizeand an electromagnetic response relationship is realized; and by virtue of an optimization algorithm, a metamaterial structure unit with wide-bandwidth uniform phase shift can be quickly designed, sothat calculation resources and calculation time are saved. Then, the arrangement of the structure unit and a coding sequence for coding a metamaterial are optimized through the optimization algorithm,so that a wide-bandwidth coded metamaterial with characteristics of abnormal reflection, focusing, wave beam control, RCS reduction and the like can be realized. Through two-stage optimization operation, the design of the coded metamaterial can be quickly realized; and the method has the characteristics of easy operation and easy realization, and is of important significance in the aspects of coded metamaterial engineering design and application.

The invention discloses right angle steel tripods and a cone module using the same. The right angle steel tripods comprise three right angle steels connected and fixed with each other from end to end, chine lines of the right angle steels are in the same plane, three side edges of the same side of the right angle steels intersect with each other pairwise, included angles between intersected lines and corresponding chine lines are 45 degrees, three side edges of the other side of the right angle steels intersect with each other pairwise, and included angles between intersected lines and corresponding chine lines are equal. The cone module comprises the four right angle steel tripods, and two of the right angle steel tripods fit with each other. The right angle steel tripods and the cone module are stable and strong in structure, can be utilized to rapidly weld or bolt various kinds of construction structure and engineering structure, and thus, modular work can be realized, design, production and construction are all facilitated efficiently, and application range is wide.

A wave power installation is presented, comprising a flow chamber, an air-driven turbine disposed in the chamber and coupled with an electro-generator, a float having a cavity accumulating air, communicated with the chamber, a vacuum-creating ejector disposed in water mounted under the float, which ejector is performed as a confuser-diff-user conduit, wherein at least a portion thereof is vertically positioned. The conduit has a minimal through cross-section. At least one reverse valve is mounted in the vicinity of the minimal cross-section. The conduit is communicated with the cavity via the reverse valve. The chamber and turbine can be located on a coast. In embodiments, the conduit is furnished with a cylindrical nozzle, thereby making it stepwise widening downwardly. During both the upward and downward motions of the float, airflow is produced through the chamber, providing for practically continuous generation of electric energy by the installation, and improving its efficiency.

The invention discloses an analog integrated circuit design parameter automatic optimization scheme based on an artificial intelligence algorithm, and relates to the technical field of integrated circuit design, and the scheme comprises the following steps: A1, defining a design target; A2, fixing a circuit architecture; A3, defining N circuit device parameter variables and setting a range; and A4, defining M simulation result target variables and X limiting conditions, wherein the steps comprise a method I, a method II and a method III. According to the analog integrated circuit design parameter automatic optimization scheme based on an artificial intelligence algorithm, the whole optimization process is unified into one environment, so that the whole design is more convenient and efficient, three solutions are given in the netlist analysis module, and the use habits of different users can be met.

A fire extinguishing device for the uniform distribution of compressed air foam for fire suppression, connected to a piping network of a CAF system. Multiple nozzles of different types are connected to a single body, set at specific angles both horizontally and vertically. Each nozzle is selected to provide a set discharge spray angle and positioned in the body of the device to provide the proper distribution. The device body has a female thread at the inlet for connection to the CAF system in addition to female outlets at the discharge for connection of spray nozzles. The device may be used to create a 360° spray pattern or a 120° spray pattern depending on the application.

A method for cooling a fuel cell (3) using a liquid cooling medium, wherein of the starting materials supplied to the fuel cell and the products discharged from the fuel cell, at least one is gaseous during at least one of the operating conditions. The cooling medium is conveyed through the fuel cell (3) by a coolant conveying device (11). The power consumption of the coolant conveying device (11) is compared to predefined reference values in order to detect gas in the liquid cooling medium by a deviation of the power consumption from the predefined reference values.

A milling tool for metal cutting machining has a tool holder with a shaft. At least one disc milling cutter having a central through-hole is mounted on the shaft. The disc milling cutter has internal coolant channels extending radially therein and connected to a coolant source through axial through-holes aligned with axial through-holes of one or more spacer rings, which are also mounted on the shaft, so as to provide for feeding of coolant to the disc milling cutter when placed in different positions along the extension of the shaft.

The invention discloses an easy-to-spray high-rigidity alloy material and a preparation method thereof, and relates to the technical field of high polymer materials. The alloy material is prepared from the following components in parts by weight: 5 to 30 parts of aromatic polyester, 20 to 70 parts of polycarbonate, 5 to 30 parts of a styrene-acrylonitrile copolymer, 2 to 8 parts of a flexibilizer, 10 to 30 parts of a filler, 0.5 to 2 parts of a heat stabilizer, 1 part of a coloring agent, 0.4 to 1 part of an antioxidant, 0.2 to 0.5 part of a lubricant and 0.1 to 0.5 part of an ester exchange inhibitor. The easy-to-spray high-rigidity alloy composition provided by the invention has the characteristics of high flowability, high rigidity, good dimensional stability, low linear expansion coefficient, corrosion resistance and easy spraying; the alloy material is especially suitable for replacing a metal material to be applied to the field of interior and exterior decoration coating with high strength requirements, such as skylight decoration strips, and also has a good application effect in the field of frameworks with high requirements for material rigidity and dimensional stability.