6results about How to "Expandable" patented technology

The present application belongs to the technical field of environmental hydraulics, and relates to a reservoir operation scheduling carbon transport characteristic research method, device and computer equipment. The method comprises the following steps: constructing a three-dimensional reservoir carbon transport monitoring network to obtain basic data of the carbon transport process; based on the basic data, a water dynamics-water quality coupling model for simulating the carbon transport process is constructed, and the water dynamics-water quality coupling model is verified by using monitoring data; the operation scheduling characteristics are quantified, and scheduling characteristic parameters affecting the carbon transport are extracted; a carbon flux accounting model considering the influence of scheduling is established to quantify the influence of scheduling on carbon budget; a quantitative relationship between the carbon transport characteristic parameters and the scheduling characteristic parameters is established; based on carbon environmental constraints, scheduling optimization evaluation is carried out, the carbon target is included in the scheduling optimization system, and a low-carbon scheduling scheme is proposed. The present application has systematicness and dynamicity, realizes quantitative evaluation of carbon transport, has practicability, can be popularized to carbon cycle research of other types of water bodies, and has expansibility.

The utility model provides an oscillatory artificial rainfall simulation device which comprises a support frame, an oscillating device and an oscillating device, the output end of the linear driver is arranged in the length direction of the supporting frame; a transmission rod; the at least one group of connecting components are connected to the transmission rod; the spray head limiting blocks are fixed to the supporting frame and correspond to the moving pieces one to one, and a water return opening is further formed in one side of the bottom of each spray head limiting block; the rainfall spray head is inserted into the spray head limiting block and hinged to the spray head limiting block, and the rainfall spray head is hinged to the connecting assembly through a spray head fixing clamp; a water storage tank; a return water collecting pipe; a water return branch pipe; a water supply branch pipe; a water supply pump, a pressure gauge and a water pressure regulator; a water supply flow regulating valve; and a water return valve. According to the utility model, the rainfall spray head is driven by the linear driver to realize oscillatory swing so as to simulate rainfall.

The utility model discloses an unmanned braking system which comprises an oil supply device, a prefill valve, a parking brake, an energy accumulator, a two-way brake and an electric proportional valve set. The prefill valve is connected with the parking brake, the energy accumulator, the two-way brake and the electric proportional valve set through pipelines. Hydraulic oil is divided into three paths through a prefill valve to respectively flow to a parking brake, an energy accumulator, a double-path brake and an electric proportional valve set, and the braking requirements of unmanned driving and actual control modes are met.

The application provides a wireless communication channel modeling method based on a tunnel construction scene, and aims to solve the problems that the channel modeling in the current tunnel construction field does not conform to the actual needs of the construction site, is complicated to calculate, has low accuracy and is not expandable and universal. The application comprises three parts of a theoretical calculation method, a computer simulation method and an actual measurement method. The actual measurement method selects a transmitter and a receiver and determines the installation positions of the transmitter and the receiver from the perspective of the construction site requirements. The theoretical calculation method calculates the received power of a receiving point by using an improved ray tracing method based on the tunnel construction scene. The computer simulation method performs simulation based on a WinProp wave propagation solution simulation modeling method. The simulation results are compared with the results obtained by the theoretical calculation method and the actual measurement method to verify the application. The application has the advantages of conforming to the construction site requirements, being simple to calculate, having high accuracy and being expandable and universal.

The present application relates to electro-hydraulic hybrid drive system, especially electro-hydraulic hybrid drive system with energy recovery function, comprising prime mover, main pump and main generator driven by the prime mover, overflow valve, electrochemical energy storage device powered by the main generator, at least one actuator assembly and oil tank or oil return low pressure rail, wherein, at least one common high pressure rail supplied by the main pump is further included, each of the actuator assembly comprises motor / generator, first hydraulic pump / motor, second hydraulic pump / motor and actuator, the motor / generator is electrically connected with the electrochemical energy storage device, suction control valve and oil outlet control valve are corresponded two by two, and the first hydraulic pump / motor is controlled in four quadrant operation, the second hydraulic pump / motor is hydraulically coupled with the actuator through pipeline.The present application can accurately control the speed of the motor / generator, reduce the required rated power of the motor / generator, and be modularized and expandable on the basis of energy recovery function.

A hollow multilayered alumina microsphere and its preparation method are disclosed, belonging to the field of nanomaterials technology. This method uses anionic surfactants with sulfonic acid or carboxyl groups as template agents, aluminum salts as aluminum sources, and molecules containing carboxyl or phenolic hydroxyl groups as metal ligands to slow the release of aluminum ions. Amide precipitants are added to control the aluminum ion hydrolysis rate, resulting in hollow multilayered microspheres. This method can also be used to synthesize alumina microspheres with various structures such as onion-shaped concentric multilayers, hollow microspheres, multi-chambered microspheres, and radially cavitary microspheres. This method employs a kinetic approach combined with a soft template method to achieve controllable construction of the microsphere structure, solving the problem of uncontrollable microsphere morphology and structure due to excessively rapid aluminum source hydrolysis during alumina microsphere preparation. The synthesis process is simple and convenient, requires minimal equipment, uses inexpensive and readily available raw materials, and the resulting alumina microspheres have excellent application prospects.