Abstract: The invention discloses a support member, comprising an annular body and a support projection disposed on an end surface and/or an inner wall of the annular body, wherein the support projection extends from the end surface of the annular body in an axial direction of the annular body and is configured to extend into an interior of a pipe member to support the pipe member. The pipe member is supported so that the pipe member is prevented from deformation under the action of a fastener, and effective and reliable abutting of the adjacent pipe members located on two sides of the support member is ensured, thereby improving the sealing performance and waterproofing performance at the abutment of the adjacent pipe members to enable a line pipe system formed by the pipe member to be more safe and reliable.

Abstract: A white coating material includes 10-70 weight % of hollow glass beads (HGBs) and 30-90 weight % of resin. An intelligent thermochromic coating material includes 10-70 parts by weight of HGBs, 30-90 parts by weight of resin and 0.5-5 parts by weight of reversible thermochromic microcapsules. Due to the rich multi-level cavity structure of HGBs and the inherent characteristics of the polymer, the average reflectivity of the coating layer in the solar spectrum range is as high as 0.96, and the long-wave infrared emissivity can be as high as 0.95. The optical properties, whiteness and hiding power are better than traditional white coating materials based on titanium dioxide. The coating layer added with a small amount of reversible thermochromic microcapsules can switch freely its color between ultra-white and another color as the ambient temperature changes, thereby achieving intelligent adjustment of solar heating and passive radiative cooling.

Abstract: The disclosure provides a six-arm tunneling and anchoring machine, including: a tunneling system; a supporting system, wherein the supporting system is connected to the tunneling system, and at least part of the supporting system is able to be movably unfolded relative to the tunneling system, and when the six-arm tunneling and anchoring machine is in a supporting state, the tunneling system is lowered to touch a ground, and the supporting system is unfolded; a support working platform, wherein the support working platform is connected to the tunneling system, and at least part of the support working platform is able to be movably unfolded relative to the tunneling system. By means of the disclosure, the problems of long time and high labor intensity caused by the repeated forward and backward movement of water, electricity and air pipelines of a jumbolter in the related art are solved.

Abstract: Some embodiments of the present disclosure provide a six-arm tunneling and anchoring machine for integrating tunneling and anchoring, which includes: a tunneling machine and a roof-bolter connected with each other. The roof-bolter includes roof bolt units, a side bolt unit, and a working platform unit. The tunneling machine includes a frame body, a walking part, a cutting part, a revolving body, a rear support body, a loading mechanism, a conveyor, an electronic control system, a hydraulic system, a spraying system and a cooling system. There are two sets roof bolt units, which are symmetrically arranged on the left and right sides of the frame body, and are located behind a revolving center of the revolving body. Each roof bolt unit is provided with two top anchor bolts.

Abstract: Systems and methods for complementary control of an autonomous vehicle (AV) are disclosed. The methods include receiving information comprising an active trajectory of an AV that the AV intends to following for a planning horizon. The methods also include using the active trajectory to identify one or more regions in an environment of the AV such as a fallback monitoring region (FMR) and an active monitoring region (AMR), and generating one or more instructions for causing the AV to execute a collision mitigation action in response to an object being detected within the AMR. The methods further include transmitting the one or more instructions to an AV platform (AVP) for execution.

Abstract: An auxiliary transportation and support system used after rapid excavation is provided. The system includes a crushing and transportation device, a roof bolt support device and a side bolt support device. The crushing and transportation device includes a traveling mechanism, a transportation device, a receiving hopper, and a crushing device. The traveling mechanism is located at a bottom of the crushing and transportation device. A chassis is arranged above the traveling mechanism. The transportation device is mounted on the chassis along a traveling direction of the traveling mechanism. The receiving hopper and the crushing device are both arranged on the transportation device. The roof bolt support device includes a roof bolter, a middle roof bolter and a horizontally telescopic arm which is arranged at a head end of the chassis. The roof bolter is coupled to a movable stretching end of the horizontally telescopic arm.

Abstract: Some embodiments of the present disclosure provide a six-arm tunneling and anchoring machine for integrating tunneling and anchoring, which includes: a tunneling machine and a roof-bolter connected with each other. The roof-bolter includes roof bolt units, a side bolt unit, and a working platform unit. The tunneling machine includes a frame body, a walking part, a cutting partes, a revolving body, a rear support body, a loading mechanism, a conveyor, an electronic control system, a hydraulic system, a spraying system and a cooling system. There are two sets roof bolt units, which are symmetrically arranged on the left and right sides of the frame body, and are located behind a revolving center of the revolving body. Each roof bolt unit is provided with two top anchor bolts.

Abstract: A process for supporting an anchor bolt and an anchor cable on a continuous mining working face is provided. A four-arm top anchor bolt drill carriage serves as a front carriage, a six-arm side anchor bolt and top anchor cable and top anchor cable drill carriage serves as a rear carriage, and the two carriages are arranged in a front-rear direction to work in parallel. Four anchor bolt drill machines of the four-arm top anchor bolt drill carriage face to a top plate. Two drill machines are disposed in front of the six-arm side anchor bolt and the top anchor cable drill carriage. At a distance of four meters away, another two drill machines are disposed. Two top anchor cable drill machines are disposed in a middle of the anchor bolt drill machines and face to the top plate.

Abstract: The present invention relates to an ultrahigh sensitive pressure-sensing film based on spiky hollow carbon spheres and the fabrication method thereof. The fabricated spiky hollow carbon spheres composed polydimethylsiloxane sensing film whose spheres were well dispersed in the matrix. The spiky structure is useful for the spheres to trigger Fowler-Nordheim (F-N) tunneling effect and thus enhancing the sensitivity of the material. The carbon material fabricated by the precursor transformation method contains a proper Nitrogen doping, which has efficiently increased the carrier migration ability. The hollow structure can both regulate the density of fillers and help to improve its temperature independence. Calcine the spheres under an inert atmosphere to transform the spiky hollow organic spheres into a carbon one, in this process the Nitrogen fraction and graphitization can be adjusted. The above carbon spheres then can be assembled with polydimethylsiloxane to achieve the composite film.

Abstract: A process for supporting an anchor bolt and an anchor cable on a continuous mining working face is provided. A four-arm top anchor bolt drill carriage serves as a front carriage, a six-arm side anchor bolt and top anchor cable and top anchor cable drill carriage serves as a rear carriage, and the two carriages are arranged in a front-rear direction to work in parallel. Four anchor bolt drill machines of the four-arm top anchor bolt drill carriage face to a top plate. Two drill machines are disposed in front of the six-arm side anchor bolt and the top anchor cable drill carriage. At a distance of four meters away, another two drill machines are disposed. Two top anchor cable drill machines are disposed in a middle of the anchor bolt drill machines and face to the top plate.

Abstract: The present invention relates to an ultrahigh sensitive pressure-sensing film based on spiky hollow carbon spheres and the fabrication method thereof. The fabricated spiky hollow carbon spheres composed polydimethylsiloxane sensing film whose spheres were well dispersed in the matrix. The spiky structure is useful for the spheres to trigger Fowler-Nordheim (F-N) tunneling effect and thus enhancing the sensitivity of the material. The carbon material fabricated by the precursor transformation method contains a proper Nitrogen doping, which has efficiently increased the carrier migration ability. The hollow structure can both regulate the density of fillers and help to improve its temperature independence. Calcine the spheres under an inert atmosphere to transform the spiky hollow organic spheres into a carbon one, in this process the Nitrogen fraction and graphitization can be adjusted. The above carbon spheres then can be assembled with polydimethylsiloxane to achieve the composite film.

Abstract: An auxiliary transportation and support system used after rapid excavation is provided. The system includes a crushing and transportation device, a roof bolt support device and a side bolt support device. The crushing and transportation device includes a traveling mechanism, a transportation device, a receiving hopper, and a crushing device. The traveling mechanism is located at a bottom of the crushing and transportation device. A chassis is arranged above the traveling mechanism. The transportation device is mounted on the chassis along a traveling direction of the traveling mechanism. The receiving hopper and the crushing device are both arranged on the transportation device. The roof bolt support device includes a roof bolter, a middle roof bolter and a horizontally telescopic arm which is arranged at a head end of the chassis. The roof bolter is coupled to a movable stretching end of the horizontally telescopic arm.

Abstract: A composition for forming a hydrophilic coating includes an organic binder having an average particle size from about 1 to about 100 nm and an inorganic binder having an average particle size from about 1 to about 40 nm. The composition further includes an inorganic photocatalyst that catalyzes an oxidation-reduction reaction. Characteristically, the photocatalyst includes a photocatalytic metal oxide having an average particle size from about 1 to about 50 nm. Advantageously, coatings formed from the composition have improved stain resistance, low contact angle, and resistance to dirt adherence, while maintaining a clear optical character.

Abstract: A composition for forming a hydrophilic coating includes an organic binder having an average particle size from about 1 to about 100 nm and an inorganic binder having an average particle size from about 1 to about 40 nm. The composition further includes an inorganic photocatalyst that catalyzes an oxidation-reduction reaction. Characteristically, the photocatalyst includes a photocatalytic metal oxide having an average particle size from about 1 to about 50 nm. Advantageously, coatings formed from the composition have improved stain resistance, low contact angle, and resistance to dirt adherence, while maintaining a clear optical character.

Abstract: A high solid polyester polyol/silica nanocomposite resin with low viscosity is synthesized by an in situ polymerization method, namely conducting condensation polymerization of polyol/diacid monomer with a molar ratio of 1.1˜1.5 in the presence of colloidal silica nanoparticles with a diameter of 10˜150 nm. The resulted nanocomposite resins has a solid content of >95%, molecular weight of 1000˜5000 g/mol and hydroxyl value of 80-200 mg KOH/g, and a viscosity in the range of 800-2000 mPa.s. The viscosities are especially lower than those obtained by a blending method. The nanosilica content in the nanocomposite resin is 1˜15% (based on the total solid content of nanocomposite resin). The high solid polyester polyol/silica nanocomposite resin was curable with isocyanate or melamine to prepare high solid transparent nanocomposite coatings with obviously improved abrasion and scratch resistance, hardness, weatherability etc.

Abstract: The present invention provides a novel UV-resistant material, which is a host-guest nano-composite made with micro- and mesoporous molecular sieves of types X, Y, A, STI, ASM-5, MCM-41 and the series thereof, and SBA and the series thereof being the host and the nano-cluster Ti02, ZnO, Ce02, and Fe203 being the guest. The composite represents strong absorption in the UVA-UVB ranges, which can be used as the UV resistant agent in cosmetics, coatings, rubber and plastic industry.

Abstract: A high solid polyester polyol/silica nanocomposite resin with low viscosity is synthesized by an in situ polymerization method, namely conducting condensation polymerization of polyol/diacid monomer with a molar ratio of 1.1˜1.5 in the presence of colloidal silica nanoparticles with a diameter of 10˜150 nm. The resulted nanocomposite resins has a solid content of >95%, molecular weight of 1000˜5000 g/mol and hydroxyl value of 80-200 mg KOH/g, and a viscosity in the range of 800-2000 mPa.s. The viscosities are especially lower than those obtained by a blending method. The nanosilica content in the nanocomposite resin is 1˜15% (based on the total solid content of nanocomposite resin). The high solid polyester polyol/silica nanocomposite resin was curable with isocyanate or melamine to prepare high solid transparent nanocomposite coatings with obviously improved abrasion and scratch resistance, hardness, weatherability etc.