Abstract: An underwater sonar device and an underwater detecting system. The underwater sonar device comprises a main body, a propeller, a detector and a hydrofoil assembly. The main body is an axisymmetric structure. The propeller, the detector, and the hydrofoil assembly are disposed on the main body. The detector is configured to detect and image an underwater target. The propeller is configured to drive the main body to move along a longitudinal direction and a vertical direction, and control a pitch angle, a roll angle, and a yaw angle of the main body. The hydrofoil assembly is disposed at a back of the main body, and is configured to adjust an included angle between the hydrofoil assembly and the longitudinal direction of the main body automatically based on water resistance on the hydrofoil assembly to keep the sonar device navigating at a fixed depth.

Abstract: Disclosed is a pixel circuit arranged in a display substrate, which comprises a first driving mode and a second driving mode. Content displayed in the display substrate comprises multiple display frames. In the first driving mode and the second driving mode, the display frames comprise refresh frames. A signal of a second scanning line is the same as that of a third scanning line. The time of which the signal of the second scanning line is an active level signal comprises a first refresh time period, a second refresh time period and a third refresh time period, which sequentially occur at intervals. During the second refresh time period, a signal of a first scanning line is an inactive level signal. The voltage of a signal at a reset voltage end is a positive voltage, and the voltage of a signal at a first initial voltage end is a negative voltage.

Abstract: Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforce-opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.

Abstract: Polyurethane foams and methods of manufacturing are described herein. The foam can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; and (b) a filler. The amount of filler in the foam can be from 50 to 90% by weight, based on the total weight of the foam. The filler can include a plurality of fibers and/or a particulate filler. The polyurethane foams described herein are made without adding a surfactant to the reaction mixture. The density of the polyurethane foam can be at least 5 lb/ft3.

Abstract: Polyurethane composites comprising non-silane treated glass fibers and methods of manufacturing are described herein. The polyurethane composites can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) a filler; and (c) non-silane treated glass fibers. In some instances, none of the glass fibers in the polyurethane composites are silane treated. The polyurethane composites comprising the non-silane treated glass fibers can have a flexural strength that is greater than the flexural strength of an identical composition wherein the non-silane treated glass fibers are replaced with silane-treated glass fibers. Articles comprising the polyurethane composites are also disclosed herein.

Abstract: A touch substrate, a manufacturing method thereof and a display device. The touch substrate according to the embodiment of the present disclosure includes: a basal substrate; a touch electrode layer disposed on the basal substrate, the touch electrode layer comprising a plurality of touch electrodes; and a filler disposed between any two adjacent touch electrodes of the touch electrode layer. An orthographic projection of the filler on the basal substrate is at least partially located between orthographic projections of two adjacent touch electrodes on the basal substrate. A refractive index of the filler is n3, a refractive index of the basal substrate is n1, a refractive index of the touch electrode is n2, and |n2?n3|<|n2?n1|.

Abstract: Composite panels and methods of preparation are described herein. In some embodiments, the composite panel can include a first fiber reinforcement, a polyurethane composite having a first surface and a second surface opposite the first surface, wherein the first surface is in contact with the first fiber reinforcement; and a cementitious material adjacent the first fiber reinforcement opposite the polyurethane composite. The polyurethane composite can be formed from (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (ii) one or more polyols, and (iii) a particulate filler. The fiber reinforcement can be formed from a woven or non-woven material, such as glass fibers. The composite panel can further include a material, such as a second fiber reinforcement and a cementitious layer, in contact with the second surface of the polyurethane composite. Articles comprising the composite panels are also disclosed.

Abstract: A touch substrate, a manufacturing method thereof and a display device. The touch substrate according to the embodiment of the present disclosure includes: a basal substrate; a touch electrode layer disposed on the basal substrate, the touch electrode layer comprising a plurality of touch electrodes; and a filler disposed between any two adjacent touch electrodes of the touch electrode layer. An orthographic projection of the filler on the basal substrate is at least partially located between orthographic projections of two adjacent touch electrodes on the basal substrate. A refractive index of the filler is n3, a refractive index of the basal substrate is n1, a refractive index of the touch electrode is n2, and |n2?n3|<|n2?n1|.

Abstract: An array substrate, a manufacturing method thereof and a display device are provided. The array substrate includes: a base substrate, a reflection region layered structure and a reflection electrode. The base substrate includes a pixel region, the pixel region includes a reflection region. The reflection region layered structure is in the reflection region, and includes a particle layer, the particle layer is configured to provide a granular rough surface on a side of the reflection region layered structure facing away from the base substrate. The reflection electrode is on the particle layer.

Abstract: Disclosed herein are composite materials, including composite building materials, comprising a polyurethane composite core in physical communication with a cementitious layer. Also disclosed are methods for producing the composite materials.

Abstract: A method for manufacturing an array substrate, including forming at least two data lines, forming a buffer layer on the data lines, forming an organic film, which is provided with vias, on the buffer layer, the vias being in a partially overlapping relationship with the orthographic projection of the two adjacent data lines on a base substrate, forming a first conductive layer on the organic film.

Abstract: Polyurethane composites comprising non-silane treated glass fibers and methods of manufacturing are described herein. The polyurethane composites can include (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) a filler; and (c) non-silane treated glass fibers. In some instances, none of the glass fibers in the polyurethane composites are silane treated. The polyurethane composites comprising the non-silane treated glass fibers can have a flexural strength that is greater than the flexural strength of an identical composition wherein the non-silane treated glass fibers are replaced with silane-treated glass fibers. Articles comprising the polyurethane composites are also disclosed herein.

Abstract: An array substrate, a manufacturing method thereof and a display device are provided. The array substrate includes: a base substrate, a reflection region layered structure and a reflection electrode. The base substrate includes a pixel region, the pixel region includes a reflection region. The reflection region layered structure is in the reflection region, and includes a particle layer, the particle layer is configured to provide a granular rough surface on a side of the reflection region layered structure facing away from the base substrate. The reflection electrode is on the particle layer.

Abstract: Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) an inorganic filler, (c) an inorganic fiber, and (d) an organic fiber. Suitable organic fibers can include polyester fibers. The weight ratio of the inorganic fiber to the organic fiber can be from 1:1 to 20:1. Articles comprising the polyurethane composites described herein are also disclosed.

Abstract: A method for manufacturing an array substrate, including forming at least two data lines, forming a buffer layer on the data lines, forming an organic film, which is provided with vias, on the buffer layer, the vias being in a partially overlapping relationship with the orthographic projection of the two adjacent data lines on a base substrate, forming a first conductive layer on the organic film.

Abstract: Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) an inorganic filler, (c) an inorganic fiber, and (d) an organic fiber. Suitable organic fibers can include polyester fibers. The weight ratio of the inorganic fiber to the organic fiber can be from 1:1 to 20:1. Articles comprising the polyurethane composites described herein are also disclosed.

Abstract: Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) a particulate filler having a bulk density of 1 g/cm3 or greater, (c) optionally a fiber material, and (d) a lightweight filler having a bulk density from 0.01 g/cm3 to less than 1 g/cm3. In some examples, the lightweight filler can be selected from expanded perlite, expanded clay, foamed glass, and combinations thereof. Articles such as building materials comprising the polyurethane composites are also disclosed.

Abstract: Composite materials and methods for their preparation are described herein. The composite materials can comprise (a) a polyurethane and (b) from 35% to 90% by weight, based on the total weight of the composite, of a particulate filler dispersed in the polyurethane. The polyurethane can be formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols. The one or more polyols that form the polyurethane comprise a high hydroxyl number polyol having a hydroxyl number of at least 250 mg KOH/g. In some cases, the one or more polyols that form the polyurethane can have a weight average equivalent weight of from 200 to 1100 amu.

Abstract: Methods for producing building materials comprising a reinforced substrate are described herein. The method can include providing a substrate having a first surface and an opposed second surface, applying a fabric material to the first surface of the substrate, applying a hydrophobic polymeric woven mesh to the fabric material, applying a coating to the hydrophobic polymeric woven mesh thereby allowing the coating to penetrate the hydrophobic polymeric woven mesh and fabric material, removing the hydrophobic polymeric woven mesh, and curing the coating thereby bonding the fabric material to the first surface of the substrate. The substrate can include a polymeric material. In some embodiments, the substrate can include a polyurethane foam. The substrate can further include a filler. The hydrophobic polymeric woven mesh used in the building materials can be derived from alkylene monomers.

Abstract: Polyurethane composites and methods of preparing polyurethane composites are described herein. The polyurethane composite can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; (b) fly ash comprising 50% or greater by weight, fly ash particles having a particle size of from 0.2 micron to 100 microns; and (c) a coarse filler material comprising 80% or greater by weight, filler particles having a particle size of from greater than 250 microns to 10 mm. The coarse filler material can be present in the composite in an amount of from 1% to 40% by weight, based on the total weight of the composite. The weight ratio of the fly ash to the coarse filler material can be from 9:1 to 200:1.