Abstract: Aspects of the disclosure are directed to a method for use on a blockchain network that includes an accounting node subnetwork having accounting nodes configured to record a data block onto a blockchain and a service node having service nodes configured to verify data blocks recorded by the accounting nodes onto the blockchain. The method can include generating a signature based on transaction information to be included in a data block to be added onto the blockchain by using a key specific to the accounting node. The method can further include adding the transaction information and the generated signature to the data block and adding the data block onto the blockchain, and transmitting the signature to the service nodes in the service node subnetwork, so that the service nodes perform signature verification on the signature based on the key specific to the accounting node.

Abstract: A turbine engine cleaning system is disclosed. In the turbine engine cleaning system, a temperature sensor obtains a temperature within a combustion chamber of the turbine engine; a cleaning agent storage device stores cleaning agent; a cleaning agent delivery device is connected between the cleaning agent storage device and the combustion chamber of the turbine engine, and includes a pipe and a driver mechanism; the pipe includes a front-end pipe and a rear-end pipe; the front-end pipe is connected to the cleaning agent storage device; the rear-end pipe is connected to the front-end pipe and the combustion chamber; the driver mechanism is connected to the front-end pipe and drives the cleaning agent to enter the combustion chamber from the cleaning agent storage device by the front-end pipe and the rear-end pipe to clean components when the temperature within the combustion chamber is less than or equal to a predetermined temperature.

Abstract: A fracturing device includes a power unit, and the power unit includes a muffling compartment, a turbine engine, and an air intake unit. The air intake unit is communicated with the turbine engine through an intake pipe and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is at a top of the muffling compartment and the muffling compartment has an accommodation space, the turbine engine is within the accommodation space. A fan is further provided to generate wither positive pressure or negative presser in the muffling compartment to facilitate a cooling of the turbine engine.

Abstract: An exhaust device and an installation method thereof, a turbine fracturing apparatus, and a disassembly method of a turbine are provided. The exhaust device includes a body, a fixation plate, a pressure plate, and a diffusion pipe; the body includes a side wall; the fixation plate is configured to be fixed to the side wall; the pressure plate is configured to be able to be pre-fixedly connected and fixedly connected with the fixation plate; the diffusion pipe is configured to be fixed to the side wall through the pressure plate and the fixation plate; the fixation plate further comprises a first pre-installation part, and the pressure plate further comprises a second pre-installation part, and the second pre-installation part is matched with the first pre-installation part to realize pre-fixation of the diffusion pipe.

Abstract: A mounting bracket and an auxiliary mechanism are disclosed. The mounting bracket includes a mounting base, a first mounting plate, a second mounting plate and a tubular connection structure; the first mounting plate and the second mounting plate are fixed on the mounting base; the second mounting plate and the first mounting plate are oppositely arranged and spaced apart; the first mounting plate includes at least one first mounting hole and a first fixing hole, the second mounting plate includes a second fixing hole, and the first mounting hole is configured to mount a motor or an oil pump; one end of the tubular connection structure is connected with an edge of the first fixing hole, and another end of the tubular connection structure is connected with an edge of the second fixing hole.

Abstract: A gas turbine overspeed protection method includes: a power utilization load of a generator is acquired, and a rotating speed value of a gas turbine is acquired; whether the power utilization load suddenly decreases or disappears is judged, and if so, an eddy current retarder is controlled by a controller to simulate the power utilization load to provide a braking torque for the generator; or, whether the rotating speed value exceeds a set speed range is judged, and if so, the gas turbine is controlled by the controller to reduce fuel supply, and a discharge valve of a gas compressor is opened to discharge a high-pressure gas to reduce the power output and the rotating speed of the gas turbine.

Abstract: This disclosure generally relates to power generation methods and systems based on gas turbine engines, and particularly to mobile and adaptive power generation systems and methods based on gas turbine engine for supplying mechanical and/or electrical power for fracturing operations at an oil wellsite. Various systems, platforms, components, devices, and methods are provided for flexibly and adaptively configure one of more gas turbines, hydraulic pumps, and electric generators to support both fracturing and electric demands at a well site. The disclosed implementations enable and facilitate a mobile, adaptive, and reconfigurable power system to provide both mechanical and electric power for hydraulic fracturing operation.

Abstract: Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Abstract: The present invention discloses a hydraulic fracturing system for driving a plunger pump with a turbine engine using a drive train. The driving train may include a reduction gearbox and a transmission device. The turbine engine is connected to an input of the reduction gearbox, an output of the reduction gearbox is connected to an input of the transmission device, and an output of the transmission device is connected to a drive input of the fracturing pump. The transmission device is configured to be switchable to one of a set of rotational speed conversion ratios. The transmission device may further include a clutch for effectuate a switching between the set of rotational speed conversion ratios. The drivetrain may alternatively or further include a torque convertor disposed between the reduction gearbox and the transmission device.

Abstract: Embodiments of this application provide an optical component, an optical switching fully-interconnected system, and a communication system, to reduce a backplane loss of an optical signal between the optical component and a switching node. The optical component specifically includes: a service processing module, an optical-to-electrical conversion module, a multiplexer, an optical switching switch, an optical receiving module, and an optical connector. When the optical component serves as a transmitting end, a first electrical signal generated by the service processing module is converted by the optical-to-electrical conversion module to generate a first optical signal, and the first optical signal is multiplexed by using the multiplexer and is output to a next-hop optical component through the optical switching switch and the optical connector.

Abstract: An optical module includes N optical units, a demultiplexing unit, and an optical fiber connector. The optical fiber connector includes a ferrule and M optical fibers. The M optical fibers are in the ferrule. Each of the M optical fibers corresponds to at least one of the N optical units, and optical units corresponding to any two of the M optical fibers are different. A first optical fiber in the M optical fibers is one or more of configured to transmit an optical signal received by an optical unit corresponding to the first optical fiber, or configured to transmit an optical signal received from the optical unit corresponding to the first optical fiber, wherein the first optical fiber is any one of the M optical fibers.

Abstract: An additive compound for dyeing an aluminum or aluminum alloy substrate after anodic oxidation to provide better uniformity in dyeing and hence a better finished appearance includes a main agent, an auxiliary agent, a pH stabilizer, and an antibacterial agent. The antibacterial agent includes at least one of sorbic acid, fluconazole, itraconazole, Artemisia argyi, benzyl alcohol, benzoic acid, salicylic acid, and boric acid. An additive solution and a dyeing method are also provided, the use of the compound also allows for a more rapid dyeing process.

Abstract: This application provides a base station function deployment method and device. The base station includes at least a first radio center system RCS and a first radio remote system RRS. The method includes: obtaining a selected split manner that matches an available transmission resource between the first RRS and the first RCS, where the selected split manner is used to split functions of the base station into a first function group and a second function group; and deploying, on the first RCS, a base station function that is included in the first function group and that is determined based on the selected split manner, and deploying, on the first RRS, a base station function that is included in the second function group and that is determined based on the selected split manner.

Abstract: Methods and apparatuses (10) for detecting body-related temperature changes are provided. The method comprises measuring a skin-surface temperature at a first temperature sensor element (12) at a measuring rate (S21) and measuring an ambient temperature at a second temperature sensor element (13) at the measuring rate (S22). The method also comprises calculating a plurality of first change rates for the skin-surface temperature and a plurality of second change rates for the ambient temperature over a time interval (S23). The method further comprises determining, based on the plurality of first change rates and the plurality of second change rates, whether an ambient temperature change rate is faster than a skin-surface temperature change rate by a threshold (S24). The method additionally comprises selecting whether or not to trigger an alarm based on a result of the determining (S25). With the methods and apparatuses (10), the number of false alarms may be significantly reduced.

Abstract: A base station includes multiple edge nodes and a central node. The edge nodes are configured to perform communication with a user equipment, and execute baseband processing and mutual conversion between baseband data and radio data, in which the multiple edge nodes belong to one or more edge node groups, and each edge node group includes at least one edge node. The central node is configured to perform communication with the multiple edge nodes, manage the multiple edge nodes, and perform resource sharing so that resources are shared by the multiple edge nodes. The base station is divided into two levels of architecture, namely, a central node and an edge node, and the central node implements resource sharing so that resources are shared by the edge nodes, so that a resource sharing degree in the base station is enhanced.

Abstract: This application provides a base station function deployment method and device. The base station includes at least a first radio center system RCS and a first radio remote system RRS.

Abstract: A method, apparatus and computer program product are provided for assisting a user in locating and/or identifying a vehicle that a user has requested. In some examples, the vehicle may be a self-driving or autonomous car. In some examples, the vehicle may not necessarily arrive at the exact location requested by the user, but may be in close proximity to the requested location. Location information of the vehicle, such as a detected real-time location, photographs of the environment surrounding the vehicle, and/or directions to the vehicle may be provided to the user who has requested the vehicle. The user may then efficiently identify the vehicle that was sent for pickup. A key may be associated with the pickup request. The assigned vehicle may communicate the key to the user, for example, by flashing a series of lights indicative of the key, so that the user can identify the vehicle.

Abstract: A method for estimating body temperature may be provided, including receiving a measured body skin temperature and a measured environment temperature; and estimating the body temperature based on the measured body skin temperature and the measured environment temperature by using the following equation: Tb=f(Ts?Te)*(A+B*Ts+C*Te)+Ts wherein, Tb denotes the body temperature, Ts denotes the measured skin temperature, Te denotes the measured environment temperature, A, B and C are parameters, f is a function such that f(x) is less than x when x is greater than 1.

Abstract: The present invention provides a data transmission method, apparatus and device, and a base station, and relates to the field of communications technologies. The method of the present invention includes: receiving data sent by a radio unit; acquiring a standard identity of the data, where the standard identity is used to identify a standard type of the data; routing the data according to the standard identity of the data; and sending the routed data to a digital unit corresponding to the standard identity of the routed data.