Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.

Abstract: An apparatus for consolidating fiber-reinforced resin material comprises a housing, comprising a barrel and a receptacle. The receptacle comprises a base, a lid, positionable relative to the base and relative to the barrel such that the housing is in an open state or a closed state, and a de-gassing port. The apparatus comprises a gasket that is in contact with the lid, the base, and the barrel when the housing is in the closed state. The apparatus comprises a piston, movable between a retracted position, in which the piston, in its entirety, is in the barrel, and an extended position, in which a portion of the piston is in the receptacle and another portion of the piston is in the barrel. The apparatus comprises a seal, which is in contact with the piston and the barrel, and a drive system, configured to control movement of the piston.

Abstract: The present disclosure relates to a rear sub-frame assembly, applied to an electric vehicle main body, and rear sub-frame assembly comprises a rear sub-frame main body and positioning supports, rear sub-frame main body is bilateral symmetry structure; vehicle body connecting parts connected with rear sub-frame main body on upper portion of rear sub-frame main body, and battery pack guard plate connecting parts connected with rear sub-frame main body on lower portion of rear sub-frame main body are constructed on rear sub-frame main body, stabilizing rod mounting parts, upper control arm mounting parts and lower control arm mounting parts are further arranged on rear sub-frame main body respectively; the quantity of positioning supports respectively arranged close to left end and right end of rear sub-frame main body is two, and positioning parts matched with external positioning members to position rear sub-frame main body are constructed on two positioning supports respectively.

Abstract: Embodiments of the present disclosure relate to a service flow system and a service data processing method and apparatus. The system can include a management server, a distributed storage cluster and a block chain alliance network connected by a network, the block chain alliance network including a consensus node and at least one participant node. Through unified management of a management server, off-chain data is stored in a distributed storage cluster, then participants of each phase are defined for different projects, and the participants of the same phase of the same project share the same on-chain and off-chain data. Therefore, credible access of the participants to block chain data is solved, dynamic customizable phase management of the projects in a service flow is supported, the on-chain data and participants of each phase are strictly divided and managed, and associated management of on-chain and off-chain service flow data is also supported.

Abstract: The present invention belongs to the technical field of bridges, and specifically discloses a spatial multi-point synchronous closure construction method for a three-main-truss steel truss arch bridge. Problems such as difficult control, low efficiency and poor precision of a three-main-truss steel truss arch bridge can be improved by mounting standard rods, adjusting the standard rods to designed coordinates, observing coordinates and spacing of closure rods, processing and mounting the closure rods, adjusting spatial locations, monitoring the atmospheric temperature, analyzing a change rule, pushing the standard rods, adjusting gaps, and carrying out closure.

Abstract: A method, including: operating an industrial gas turbine engine having a plurality of combustor cans arranged in an annular array, each can having burner stages and a pilot burner arrangement having a premix pilot burner and a diffusion pilot burner; operating in asymmetric combustion, wherein at least one can is a warm can where respective burners stages are off and remaining cans operate as hot cans where respective burner stages are on; and while maintaining a constant rate of fuel flow to the pilot burner arrangement of the warm can, changing fuel fractions within the pilot burner arrangement of the warm can.

Abstract: A method, including: operating an industrial gas turbine engine having a plurality of combustor cans arranged in an annular array, each can having burner stages and a pilot burner arrangement having a premix pilot burner and a diffusion pilot burner; operating in asymmetric combustion, wherein at least one can is a warm can where respective burners stages are off and remaining cans operate as hot cans where respective burner stages are on; and while maintaining a constant rate of fuel flow to the pilot burner arrangement of the warm can, changing fuel fractions within the pilot burner arrangement of the warm can.

Abstract: Embodiments of the present disclosure relate to a service flow system and a service data processing method and apparatus. The system can include a management server, a distributed storage cluster and a block chain alliance network connected by a network, the block chain alliance network including a consensus node and at least one participant node. Through unified management of a management server, off-chain data is stored in a distributed storage cluster, then participants of each phase are defined for different projects, and the participants of the same phase of the same project share the same on-chain and off-chain data. Therefore, credible access of the participants to block chain data is solved, dynamic customizable phase management of the projects in a service flow is supported, the on-chain data and participants of each phase are strictly divided and managed, and associated management of on-chain and off-chain service flow data is also supported.

Abstract: The invention relates to the technical field of artificial stone surfaces, in particular to an artificial glass surface, which is made from the following raw materials in parts by mass: 0-30 parts of a quartz material, 40-70 parts of a glass material, 5-15 parts of a modified silicone resin, 8-15 parts of an unsaturated polyester resin, and 5-14 parts of additional raw materials. The artificial glass surface employs recycled glass material as its main stone source, which contributes the conservation of mineral resources, and reduces production costs; the product is of higher quality.

Abstract: The present invention provides a method for preparing an artificial glass surface, which includes the following steps: step A: mixing a glass material and a silane coupling agent to obtain an initial glass material mixture. Step B: heating a silicone resin, mixing with the initial glass material mixture thoroughly to obtain a secondary glass material wrapper. Step C: adding an unsaturated polyester resin, a curing agent, a filler pigment, and a quartz material to obtain a glass surface premade material. Step D: pressing the glass surface premade material, curing to obtain the artificial glass surface. In this invention, the quality of the product is maintained at a high level, mineral resources are conserved, and production cost is lowered.

Abstract: The invention relates to the technical field of artificial stone surfaces, in particular to an artificial glass surface, which is made from the following raw materials in parts by mass: 0-30 parts of a quartz material, 40-70 parts of a glass material, 5-15 parts of a modified silicone resin, 8-15 parts of an unsaturated polyester resin, and 5-14 parts of additional raw materials. The artificial glass surface employs recycled glass material as its main stone source, which contributes the conservation of mineral resources, and reduces production costs; the product is of higher quality.

Abstract: The present invention provides a method for preparing an artificial glass surface, which includes the following steps: step A: mixing a glass material and a silane coupling agent to obtain an initial glass material mixture. Step B: heating a silicone resin, mixing with the initial glass material mixture thoroughly to obtain a secondary glass material wrapper. Step C: adding an unsaturated polyester resin, a curing agent, a filler pigment, and a quartz material to obtain a glass surface premade material. Step D: pressing the glass surface premade material, curing to obtain the artificial glass surface. In this invention, the quality of the product is maintained at a high level, mineral resources are conserved, and production cost is lowered.

Abstract: A system and machine-implemented method of generating panoramic photographs and videos. Panoramic image data in a YUV data format is received in a YUV data format by an integrated circuit. A format of the panoramic image data is detected by the integrated circuit. The format includes resolution, pixel clock, line frequency information, and field frequency information. The panoramic image data is output, by the integrated circuit, to a memory unit. The panoramic image data is processed by the integrated circuit. The integrated circuit retrieves the panoramic image data from the memory unit. The processed panoramic image data is output, by the integrated circuit, to a processing unit. The processing includes at least one of projecting, stitching or distortion correcting.

Abstract: A method and an apparatus or pressing groove section with a bending angle smaller than or equal to 90 degrees are provided. The apparatus comprises an upper convex die and a lower concave die are used for processing. The convex die comprises an expansion sleeve and an expansion core which are nested with each other. At least one of a central hole of the sleeve body and the core body is a wedge with a larger top and a smaller bottom, and a relative locking mechanism is arranged between the core body and the core body. The concave die comprises a multi-petal-shaped inner concave die and an external outer concave die which are in elastic connection.

Abstract: An emissions control system (10) for a gas turbine engine (12) for reducing CO emissions at partial load of the gas turbine engine (12) is disclosed. In at least one embodiment, the emissions control system (10) may be formed from one or more compressed air exhausts (14) for exhausting compressed air into a hot gas pathway contained within a channel (18) formed by a transition (20) extending from a combustor (22) to a turbine assembly (24). In at least one embodiment, a plurality of seals (26) may extend circumferentially around the transition (20) providing a seal (26) between the transition (20) and a component of a downstream turbine assembly (24). One or more compressed air exhausts (14) may be positioned between adjacent seals (26). The compressed air exhausts (14) may be, but are not limited to being, channels (30), orifices (34) and metered spaces (32) having various shapes and configurations.

Abstract: A cooling fluid air injection system for use in a gas turbine engine includes at an external cooling fluid source, at least one rotor cooling pipe, which is used to inject cooling fluid from the source into a rotor chamber, a piping system that provides fluid communication between the source and the rotor cooling pipe(s), a blower system for conveying the cooling fluid through the piping system and the rotor cooling pipe(s) into the rotor chamber, and a valve system. The valve system is closed during full load engine operation to prevent cooling fluid from the source from passing through the piping system, and open during less than full load engine operation to allow cooling fluid from the source to pass through the piping system.

Abstract: A combustor liner (30) for a can-annular gas turbine engine (10) and a method for constructing such a liner are provided. The combustor liner includes an annular wall member (32) A cooling channel (34, 42, 50, 54, 56, 58) is formed through the wall member and extends from an inlet end of the liner to an outlet end of the liner A property of the cooling channel may be varied along a length of the cooling channel. The cooling channel may be formed through the combustor liner using an electro-chemical machining (ECM) process or a three dimensional printing process (3DP).

Abstract: A method of transitioning from a first operating mode to a second operating in a gas turbine engine. An amount of fuel provided to a primary fuel injection system of the combustor apparatus is reduced. An amount of fuel provided to a secondary fuel/air injection system of the combustor apparatus is reduced, wherein the secondary fuel/air injection system provides fuel to a secondary combustion zone downstream from a main combustion zone. A total amount of air provided to the combustor apparatus is reduced, wherein portions of the air are provided to each of the injection systems. Upon reaching operating parameters corresponding to the second operating mode, the amount of fuel provided to the primary fuel injection system is increased, the amount of fuel provided to the secondary fuel/air injection system is reduced, and the total amount of air provided to the combustor apparatus is increased.

Abstract: A cooling fluid air injection system for use in a gas turbine engine includes at an external cooling fluid source, at least one rotor cooling pipe, which is used to inject cooling fluid from the source into a rotor chamber, a piping system that provides fluid communication between the source and the rotor cooling pipe(s), a blower system for conveying the cooling fluid through the piping system and the rotor cooling pipe(s) into the rotor chamber, and a valve system. The valve system is closed during full load engine operation to prevent cooling fluid from the source from passing through the piping system, and open during less than full load engine operation to allow cooling fluid from the source to pass through the piping system.

Abstract: A fuel injector (36) for alternate fuels (26A, 26B) with different energy densities. Vanes (47B) extend radially from a fuel delivery tube structure (20B) with first and second fuel supply channels (19A, 19B). Each vane has first and second radial passages (21A, 21B) communicating with the respective fuel supply channels, and first and second sets of apertures (23A, 23B). The first fuel supply channel, first radial passage, and first apertures form a first fuel delivery pathway providing a first fuel flow rate at a given fuel delivery pathway backpressure that is essentially common to both sets of fuel delivery pathway apertures. The second fuel supply channel, second radial passage, and second apertures form a second fuel delivery pathway providing a second fuel flow rate that may be at least 1 about twice the first fuel flow rate at the given fuel delivery pathway backpressure.