10results about How to "Improve expansion efficiency" patented technology

This invention provides a balloon microcatheter, relating to the field of medical devices. The balloon microcatheter includes an outer tube, a balloon, a connecting tube, and a reducing tube. The balloon is disposed at the distal end of the outer tube, and the connecting tube passes through the outer tube. The wall of the connecting tube has a through hole, and a first channel is defined between the outer wall of the connecting tube and the inner wall of the outer tube. The first channel communicates with the through hole and connects to the balloon. The connecting tube is sleeved on the outside of the reducing tube. When pressure is applied into the reducing tube, the inner diameter of the reducing tube increases, effectively increasing the space of the infusion cavity and improving the infusion efficiency of the balloon microcatheter. When pressure is applied into the first channel, the outer diameter of the reducing tube decreases. At this time, the space of the second channel formed between the outer wall of the reducing tube and the inner wall of the connecting tube increases. The second channel and the first channel together form the filling cavity, effectively increasing the space of the filling cavity and thus improving the balloon inflation efficiency.

And the heat exchange tube and the tube plate are sealed by the tube expanding device. Relates to the field of heat exchanger production equipment. Comprising a gun-shaped shell, a mounting rod is arranged at the transverse end of the shell, a hydraulic expansion head is rotationally connected to the end of the mounting rod, the operating platform comprises a platen and a sliding plate, and the platen and the sliding plate are connected through a hydraulic rod; a dovetail groove is formed in the top of the table plate, a bearing block is adaptively arranged in the dovetail groove, an insertion hole is formed in the top of the bearing block, and the vertical end of the shell is inserted into the insertion hole; and a universal wheel is arranged at each of the four corners of the bottom of the sliding plate. According to the device, physical exhaustion of operators can be reduced, the butt joint difficulty can be reduced, and the expansion joint efficiency is effectively improved.

The invention discloses a progressive upgrading method for an SDN (Software Defined Network). An SDN controller periodically acquires a historical traffic matrix of a hybrid network in a hybrid acquisition mode through management connection; performing order polynomial fitting on the traffic time sequence by using a least square method to generate a predicted traffic matrix; taking a prediction traffic matrix and a network topology as input, constructing an optimization model taking maximization of an SDN controllable traffic scale as a core target and taking upgrading budget and a link utilization rate as constraints, and efficiently solving and outputting an upgrading priority list of traditional nodes through a dual rising method of dual weights; and executing upgrading and evaluating the effect according to the list to form closed-loop optimization. According to the method, the characteristic of partial path controllability of the SDN is fully utilized, the contribution of node upgrading to the controllable flow is quantified, the SDN control range is rapidly expanded on the premise of ensuring the network performance, and the core value of progressive migration is improved.

The utility model belongs to the technical field of fungus inoculation tools, and particularly discloses a fungus slant inoculation tool. The inoculation tool is used for solving the problems that spores cannot be collected thoroughly when being scraped by an existing inoculation tool, and the spores are easy to scatter. The fungus slant inoculation tool comprises a handle, a connecting rod and a scraping shovel, the front end of the handle is fixedly connected with the rear end of the connecting rod, and the front end of the connecting rod is connected with the middle position of the rear end of the scraping shovel; the scraping shovel comprises a shovel face and blocking pieces, the blocking pieces are arranged on the periphery of the shovel face, the front end of the shovel face is concaved inwards to be in a crescent shape, a gap is reserved between the blocking piece located on the front side of the shovel face and the front end edge of the shovel face, the vertical distance between the lower edge of the blocking piece located on the front side of the shovel face and the crescent shovel face is 1-2 mm, and the upper edges of the blocking pieces are flush with one another. According to the utility model, the crescent shovel surface is matched with the baffle plate positioned on the front side of the shovel surface, so that the spores on the inclined surface can be quickly scraped and collected, the spores are prevented from overflowing and scattering, and infectious microbe pollution and strain waste are reduced.

The utility model provides a multi-stage heterogeneous turbine coupling type composite cascade power generation system which comprises a low-temperature preheater, a medium-temperature evaporator, a high-temperature heat absorber, a high-pressure radial turbine, a generator I, a low-pressure axial turbine, a generator II, a working medium pump I, a gas-liquid separator, a condenser, a working medium pump II and working medium pipelines among all the components. High-pressure supercritical heat absorption and low-pressure subcritical heat absorption of a working medium are coupled to form a dual-pressure heat absorption organic Rankine cycle, the design of coupling multi-stage heterogeneous turbines is adopted in the expansion power generation process of the system, and higher expansion efficiency can be achieved through all-stage cooperative expansion, so that the working efficiency and the heat utilization rate of the system are effectively improved; and efficient gradient utilization of medium and low temperature heat energy is facilitated.

The invention discloses a data expansion and exoskeleton joint end-to-end torque estimation method based on a diffusion model, and the method comprises the steps: carrying out the normalization processing of time series data from a multi-source sensor, carrying out the fragmentation according to a fixed length, and constructing a training sample with a motion class label; then, training a classifier-free conditional diffusion model by adopting a sample, and simultaneously learning conditional and unconditional denoising mapping relationships in a manner of randomly inactivating category conditions; in the generation stage, based on a classifier-free condition guidance mechanism, multi-modal time series data with specified motion category features are gradually generated from random noise; and finally, fusing the generated synthetic data with real acquired data to train a joint torque end-to-end prediction network, thereby realizing joint torque estimation of input sensor time sequence data. The method improves the prediction precision, generalization ability and stability of the end-to-end torque estimation model in a multi-action and few-sample scene, and has a good engineering application value.

The application discloses a constant-pressure compressed air energy storage system and method combined with pumped storage, and belongs to the technical field of physical energy storage systems. The constant-pressure energy storage system comprises a pumped storage subsystem, a turbine expansion generation subsystem, a compressed air energy storage subsystem and a water-gas coexistence cabin constant-pressure subsystem. The application can realize independent energy storage and power generation operation among the pumped storage subsystem, the air compression subsystem and the turbine expansion subsystem by flexibly controlling the operation modes of the subsystems and the valve opening and closing states among the subsystems. The design improves the flexibility and reliability of the system, and enables the system to be optimally configured and operated according to actual requirements, thereby further improving the energy storage efficiency and economic benefits.

The utility model discloses a cable joint waterproof protection device, which belongs to the technical field of cable joint waterproof protection, and is characterized in that the middle section of the inner wall of a joint pipe is provided with an annular sinking groove, an expansion air bag is connected in the annular sinking groove, the expansion air bag and the annular sinking groove are filled with filling protection balls, and the expansion of the expansion air bag is realized through the filling protection balls; the cable in the joint pipe is further extruded to realize internal waterproof protection; a cable chuck is arranged at the front end of the connector pipe, a plurality of notches are formed in the front end of the cable chuck, and sealing rings are arranged at the positions of the cable chuck and the notches. The protection ball fills the annular sinking groove and makes contact with the expansion air bag. The air bag expands under pressure and extrudes the cable to form a tight waterproof layer, thereby ensuring the safety of the cable joint and preventing moisture and harmful substances from invading. The U-shaped design of the expansion air bag improves the expansion efficiency, optimizes the space, and enables the device to be more compact and efficient. The design reduces the size and weight, does not sacrifice the waterproof effect, and facilitates the installation and use of the cable joint.

This application discloses a pipe expanding tool and control method, belonging to the field of pipe expanding technology. The expanding tool includes a housing, a pin assembly, a rotating assembly, and an expanding head assembly. The pin assembly includes a pin and a linear drive mechanism, which is connected to the housing. The pin is driven by the linear drive mechanism to move axially along the pin. The rotating assembly includes an auxiliary motor and a transmission component, which is rotatably connected to the housing and driven to rotate by the auxiliary motor. The expanding head assembly is connected to the housing and is driven by the transmission component. The expanding head assembly also engages with the pin. The linear drive mechanism drives the expanding head assembly to expand the pipe radially outward through the pin. The auxiliary motor drives the expanding head assembly to rotate through the transmission component, allowing the expanding head assembly to expand the pipe at different circumferential positions. By controlling the rotation of the expanding head assembly with the auxiliary motor, an appropriate rotation angle can be set according to different pipes, increasing the efficiency of pipe expanding.

The invention relates to the technical field of model construction, is suitable for the financial field, and provides a sample expansion method, computer equipment and a computer readable storage medium, and the method comprises the steps: obtaining an expanded sample based on the information type of each sample content in a real sample; calculating the semantic similarity between the expansion sample embedding vector and a vector in a real data embedding index corresponding to the real sample; determining a structural consistency score based on the structured data in the expanded sample; determining semantic stability based on the output embedded representation of the extended sample in the plurality of models; determining the credibility of the expanded sample based on the semantic similarity, the structural consistency score, the semantic stability and the output result confidence of the current initial model; and if the credibility is greater than or equal to a preset credibility threshold, determining that the expanded sample is an effective sample. According to the scheme, training data is constructed for rare class services in a targeted manner, and more diversified reliable training samples are provided for a downstream service model.