Abstract: A signal processing system and method for a radiation detector based on a metal oxide semiconductor (MOS) transistor are disclosed. The signal processing system includes a power supply generation module, an analog signal processing module, and a digital signal acquiring-processing module. The power supply generation module provides a novel power supply method, and converts a positive high voltage power supply into a negative high voltage power supply to supply power to a last dynode of a photomultiplier tube (PMT). The analog signal processing module converts a negative current pulse signal into a voltage difference signal. The digital signal acquiring-processing module acquires a signal of the analog signal processing module, and converts the signal into a digital signal for identification.

Abstract: The disclosure provides a method, a device and a computer readable medium for determining the penguin population relating to the technical field of image processing. The method of one embodiment of the disclosure comprises the following steps: firstly acquiring the penguin habitat image detected by the unmanned airborne sensor; and acquiring an interest region with penguins distributing, and a gray value of the interest region from the penguin habitat image; then for any one of gray value: determining a penguin state according to the gray value; finally determining the penguin population according to the penguin state.

Abstract: A rigid PU or PU-PIR foam comprising a reaction product of water, a catalyst, a foam-stabilizing surfactant, a polyisocyanate, a blowing agent and a blend comprising: (a) 90 to 99 wt.% of an aromatic polyester polyol having a hydroxyl number within the range of 150 to 400 mg KOH/g; and (b) 1 to 10 wt.% of a fatty acid derivative selected from the group consisting of C8 to C18 fatty acid esters and C8 to C18 fatty acid amides.

Abstract: In one embodiment, a method includes receiving a voice request from a first user who intends to activate a particular client system among a plurality of client systems that are within listening range of the first user, accessing signals associated with the voice request from each of the client systems, identifying a first client system from the plurality of client systems as being the particular client system the first user intended to activate based on the accessed signals, and instructing the first client system to provide a response from an assistant system responsive to the voice request.

Abstract: The present disclosure provides advantageous composite films/coatings, and improved methods for fabricating such composite films/coatings. More particularly, the present disclosure provides improved methods for fabricating composite films by trapping at least a portion of a layered material (e.g., hexagonal boron nitride sheets/layers) at an interface of a phase separated system and then introducing the layered material to a polymer film. The present disclosure provides for the use of boron nitride layers to increase the properties (e.g., dielectric constant and breakdown voltage) of polymer films. The exemplary films can be produced by an advantageous climbing technique. Exemplary boron nitride films are composed of overlapping boron nitride sheets with a total thickness of about one nanometer, with the film then transferred onto a polymer film, thereby resulting in significant increases in both dielectric and breakdown properties of the polymer film.

Abstract: Blends comprising an aromatic polyester polyol and a 1 to 10 wt. % of a fatty acid derivative are disclosed. The fatty acid derivative is a C8 to C18 fatty acid ester or a C8 to C18 fatty acid amide. Also disclosed are rigid PU or PU-PIR foams that comprise a reaction product of water, a catalyst, a foam-stabilizing surfactant, a polyisocyanate, a blowing agent, and the polyester polyol/fatty acid derivative blends. Surprisingly, low-temperature R-values of rigid foams based on pentane blowing agents can be improved significantly by using blends of aromatic polyester polyols and a minor proportion of readily available fatty acid derivatives. In some aspects, the difference between initial R-values of the foam measured at 75° F. and 40° F. is at least 5% greater than that of a similar foam prepared in the absence of the fatty acid derivative.

Abstract: Polyether- or polyester-epoxide polymer (PEEP) compositions are disclosed. The compositions comprise reaction products of a polyepoxide compound and a polyol composition. The polyol composition has a melting point within the range of 20° C. to 100° C. and a hydroxyl number less than 35 mg KOH/g. The PEEP composition is a solid-solid phase-change material. As measured by differential scanning calorimetry (DSC) at a heating/cooling rate of 10° C./minute, the PEEP composition has a transition temperature within the range of ?10° C. to 70° C., a latent heat at the transition temperature within the range of 30 to 200 J/g, and little or no detectable hysteresis or supercooling upon thermal cycling over at least five heating/cooling cycles that encompass the transition temperature.

Abstract: The present disclosure provides advantageous composite films/coatings, and improved methods for fabricating such composite films/coatings. More particularly, the present disclosure provides improved methods for fabricating composite films by trapping at least a portion of a layered material (e.g., hexagonal boron nitride sheets/layers) at an interface of a phase separated system and then introducing the layered material to a polymer film. The present disclosure provides for the use of boron nitride layers to increase the properties (e.g., dielectric constant and breakdown voltage) of polymer films. The exemplary films can be produced by an advantageous climbing technique. Exemplary boron nitride films are composed of overlapping boron nitride sheets with a total thickness of about one nanometer, with the film then transferred onto a polymer film, thereby resulting in significant increases in both dielectric and breakdown properties of the polymer film.

Abstract: The present disclosure provides advantageous composite films/coatings, and improved methods for fabricating such composite films/coatings. More particularly, the present disclosure provides improved methods for fabricating composite films by trapping at least a portion of a layered material (e.g., hexagonal boron nitride sheets/layers) at an interface of a phase separated system and then introducing the layered material to a polymer film. The present disclosure provides for the use of boron nitride layers to increase the properties (e.g., dielectric constant and breakdown voltage) of polymer films. The exemplary films can be produced by an advantageous climbing technique. Exemplary boron nitride films are composed of overlapping boron nitride sheets with a total thickness of about one nanometer, with the film then transferred onto a polymer film, thereby resulting in significant increases in both dielectric and breakdown properties of the polymer film.

Abstract: The present disclosure provides advantageous composite films/coatings, and improved methods for fabricating such composite films/coatings. More particularly, the present disclosure provides improved methods for fabricating composite films by trapping at least a portion of a layered material (e.g., hexagonal boron nitride sheets/layers) at an interface of a phase separated system and then introducing the layered material to a polymer film. The present disclosure provides for the use of boron nitride layers to increase the properties (e.g., dielectric constant and breakdown voltage) of polymer films. The exemplary films can be produced by an advantageous climbing technique. Exemplary boron nitride films are composed of overlapping boron nitride sheets with a total thickness of about one nanometer, with the film then transferred onto a polymer film, thereby resulting in significant increases in both dielectric and breakdown properties of the polymer film.

Abstract: The present invention discloses a concrete structure used for bank protection and scour prevention of river bank and coast. Its construct is a hollow circular truncated cone and concrete flat plates are plugged on the hollow circular truncated cone. By tearing, dispersing and stirring up water flow, the energy of local water flow is dissipated, and the scouring strength of the water flow is weakened, achieving the aim of scour prevention and bank protection. It has good mechanical property, not easy to be destroyed, has good stability in water and big overhead rate, and can save materials. Compared to previous various structures for scour prevention, the present invention has better effects of energy dissipation and scour prevention. It not only can be used in bank protection and scour prevention, but also can be used for supplementary energy dissipation when plugging and closure.