28results about How to "Flexible regulation" patented technology

The utility model is suitable for the technical field of respiratory training, and provides a respiratory training device which comprises a cylinder, supporting legs are detachably installed on the two sides of the cylinder, and supports are arranged at the bottoms of the two supporting legs. The shelf is used for placing the floating ball, and an airflow port is formed in the shelf; the air blowing pipe is fixedly communicated with the bottom of the cylinder body; and the adjusting mechanism is arranged on the cylinder body and is used for adjusting the size of the airflow port. According to the respiratory training device, accurate quantification, flexible regulation and control and efficient and safe respiratory training are achieved, the pertinence and effectiveness of training are improved, sanitation, comfort and safety in the using process are guaranteed, and effective training of respiratory muscles is promoted.

This invention relates to the field of polymer materials technology, specifically to a method for preparing and applying a rigid polyimide foam reinforced with aluminum honeycomb. The method for preparing the rigid polyimide foam reinforced with aluminum honeycomb provided by this invention includes steps such as surface pretreatment of the aluminum honeycomb core material and fixing the pretreated aluminum honeycomb core material into a molding die. The rigid polyimide foam material reinforced with aluminum honeycomb obtained by this invention not only possesses high specific strength and high specific stiffness, but also inherits the excellent properties of polyimide foam such as high temperature resistance, flame retardancy, low smoke, and thermal insulation. The introduction of the aluminum honeycomb skeleton also improves the material's impact resistance and dimensional stability, making it an ideal multifunctional integrated lightweight structural material with promising application prospects.

The application discloses a kind of microcavity optical frequency comb ultra-high repetition frequency precision measurement system and method, solve the existing microcavity optical frequency comb repetition frequency measurement system because of facing electronic device frequency bandwidth bottleneck lead to the problem that measurable range is seriously limited, including optical rough measurement unit, comb tooth processing unit, modulation frequency shift unit, reference equalization unit, beam combination beat frequency unit and microwave precision measurement unit;Optical rough measurement unit is used to measure the repetition frequency of the light beam to be measured, and is divided into measurement beam and reference beam;Comb tooth processing unit is used to filter out target comb from measurement beam;Modulation frequency shift unit is used for electro-optic modulation to target comb;Reference equalization unit is used to control the reference comb power of reference beam to obtain better beat frequency detection effect;Beam combination beat frequency unit is used for optical beam combination beat frequency between target comb and reference comb and is divided into two beams;Microwave precision measurement unit is used to detect the beat frequency signal between target comb and reference comb, to realize the precision measurement of repetition frequency.

This invention provides a solid acid catalyst comprising a divinylbiphenyl polymer as a backbone and a sulfonate group as an active center; wherein the divinylbiphenyl polymer comprises substituted or unsubstituted divinylbiphenyl monomer structural units and optionally substituted or unsubstituted divinylbenzene monomer structural units; in both the substituted or unsubstituted divinylbiphenyl monomer structural units and the substituted or unsubstituted divinylbenzene monomer structural units, the substituents are each independently C1-C5 alkyl groups. This invention selects suitable polymeric monomers and polymerizes them to obtain a polymer backbone with a stable backbone structure and a large specific surface area; after sulfonation, the backbone structure is maintained, and the resulting catalyst has a stable acid active center.

The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation cold plate adopting a high-efficiency heat-conducting medium, which comprises a first heat dissipation part, a second heat dissipation part, a third heat dissipation part, a fourth heat dissipation part, a third heat dissipation part and a fourth heat dissipation part, and is characterized in that the first heat dissipation part comprises a first substrate, a top of a second substrate, a first flow channel and a second flow channel; the other end of the first flow channel is connected with one end of the second flow channel through a conical flow channel, a water outlet is formed in the other end of the second flow channel, and the water inlet and the water outlet are both formed in the first side face of the first base plate; and the second heat dissipation part is arranged at the bottom of the first heat dissipation part and comprises the bottom of a second substrate and a plurality of conical heat dissipation channels penetrating through the interior of the bottom of the second substrate. According to the utility model, the heat dissipation efficiency and the heat dissipation uniformity are improved.

The invention discloses a waveform-controllable plasma processing method and system, and belongs to the technical field of semiconductor manufacturing processes. Providing a programmable control radio frequency power waveform to a bottom electrode in the plasma cavity as a bias voltage, wherein the programmable control radio frequency power waveform comprises a pulse waveform and a slope waveform; plasma control variables are measured through a sensor arranged at the output end of the plasma cavity; and dynamically adjusting a control signal of a power supply generating the bias voltage based on the detection data of the control variable, and adjusting the radio frequency power waveform to control ion energy distribution and compensate for the charge accumulation effect in real time. According to the invention, independent and accurate control of ion energy and ion flux is realized, and the problems of non-uniform process and device damage caused by wide ion energy distribution, double peaks and charge accumulation in traditional radio frequency bias are solved.

The application relates to the technical field of power supply equipment, and discloses an inverter power supply, which comprises a shell body, a power distribution unit arranged in the interior of the shell body, the power distribution unit being provided with an input terminal used for accessing first alternating current, the power distribution unit further comprising a rectifier bridge electrically connected with the input terminal, the rectifier bridge being used for converting the first alternating current into direct current, an inverter unit arranged in the interior of the shell body, the inverter unit comprising a busbar capacitor plate, the busbar capacitor plate being electrically connected with the rectifier bridge, the busbar capacitor plate being connected with an IGBT module, the IGBT module being connected with an output terminal, and a control unit arranged in the interior of the shell body, the control unit being connected with the IGBT module, the control unit being used for controlling the IGBT module so that the IGBT module converts the direct current into second alternating current, and the second alternating current is output through the output terminal. The inverter power supply provided by the application can control the parameters of output current more accurately.

The present application relates to the technical field of double-suction pump, in particular to a multi-working-condition overload-free double-suction pump, which comprises a shell assembly, the shell assembly comprises a lower shell, and the top outer wall of the lower shell is fixedly connected with an upper shell, a connecting shaft mechanism is rotatably installed between the lower shell and the upper shell, a impeller assembly is installed at the midpoint of the connecting shaft mechanism, and the impeller assembly is located inside the lower shell and the upper shell, and the connecting shaft mechanism comprises a connecting shaft which is rotatably connected to the lower shell. Three groups of adjustable limit seats are assembled on the connecting shaft, and the limit seats and the adaptive fitting structure of the inner connecting sleeve of the impeller assembly are used to assist the workers to complete the rapid assembly of the impeller on the connecting shaft. Meanwhile, the driving assembly is integrated in the connecting shaft, and the rotating part structure at the end of the connecting shaft can flexibly regulate and control the position of the limit seat, thereby improving the problems of complicated disassembly and assembly process and inconvenient maintenance of the impeller of the existing double-suction pump to a certain extent.

This invention relates to a plasma generator based on a dense microporous material catalysis, belonging to the field of low-temperature plasma technology. The plasma generator contains at least one discharge unit, which includes a first electrode, a microporous ceramic medium, and a second electrode. The first electrode is used to connect to a power source, and the second electrode is used for grounding. The microporous ceramic medium is used to adsorb gas molecules and active particles generated by the plasma discharge. This invention generates micro-discharge in a dense microporous medium, which has an extremely high specific surface area. When gas passes through, it is adsorbed onto the surface of the micropores in the medium. Similarly, active substances in the plasma are adsorbed onto the surface of the micropores in the medium. This improves the contact efficiency between short-lived, highly active particles and free radicals in the plasma and the reactants, promotes surface catalytic reactions, and improves the overall efficiency of the device.

The application discloses a tubular culture device, which comprises a sample feeding container and a culture pipeline in communication with the sample feeding container and forming a circulation loop, wherein a circulation power assembly is arranged on the culture pipeline; the circulation power assembly is used for driving the fluid in the sample feeding container to flow in the culture pipeline at a controllable flow rate; and the culture pipeline comprises one or more parallel branch pipelines. The tubular culture device can be widely used for the culture of microorganisms, cells and the like, realizes the control and monitoring of the culture process, provides rich reference data for the scaled production of cells, reduces the cost and reduces the product development risk.

This invention relates to a drag-reducing and heat-cooling device combining a partitioned base with a liftable central structure. The device includes a central base structure, a peripheral base structure, a drive mechanism, and a cold air flow control system. The central base structure comprises an arc-shaped surface and a lifting rod. The arc-shaped surface is located at the center of the peripheral base structure surface. When the lifting rod is compressed, the arc-shaped surface remains flush with the peripheral base structure, forming an integrated heat shield. The cold air flow control system includes a gas pipeline, a cold air storage cylinder, and an ejector device. Cold air is uniformly injected from the ejector device through the gas pipeline and the lifting rod onto the surface of the central base structure, forming a gas film. The drive mechanism is located inside the reentry capsule and drives the lifting rod to extend or retract into the reentry capsule, thereby raising or lowering the arc-shaped surface of the central base structure. This invention effectively reduces the impact of heat flow while reducing aerodynamic load, improving the safety and reliability of reentry.

The invention discloses a ferroelectric thin film transistor based on aluminum scandium nitride, aluminum nitride and aluminum scandium nitride multilayer structures and a preparation method of the ferroelectric thin film transistor, and relates to the field of semiconductor devices and ferroelectric memories. The ferroelectric thin film transistor based on the aluminum scandium nitride, aluminum nitride and aluminum scandium nitride multilayer structure comprises a multilayer ferroelectric gate stack structure and a channel layer matched with the multilayer ferroelectric gate stack structure, and the multilayer ferroelectric gate stack structure is a symmetrical laminated structure of aluminum scandium nitride / aluminum nitride / aluminum scandium nitride. According to the ferroelectric thin film transistor based on the aluminum scandium nitride, aluminum nitride and aluminum scandium nitride multi-layer structure, a basis is provided for decoupling residual polarization and a coercive field and relieving negative effects brought by a depolarization field from the structural level through hierarchical cooperation of a laminated structure, and meanwhile, the ferroelectric thin film transistor is compatible with the assembly logic of a conventional semiconductor device; and a structural space is reserved for subsequent performance optimization and material replacement.

The present application relates to a kind of real ice field hot and wet regulation system and its control method, the system includes refrigeration dehumidification unit and control unit, refrigeration dehumidification unit includes built-in refrigeration module and cold and hot control module, built-in refrigeration module includes surface cooler, evaporator, rotary dehumidifier, air supply fan, electric heater, two surface heat exchanger, condenser and return air fan, cold and hot control module includes water-cooled evaporator, air-cooled evaporator, water-cooled condenser and air-cooled condenser;Refrigeration dehumidification unit is provided with fresh air channel and regeneration air channel, fresh air channel is used to handle fresh air and send into real ice field, regeneration air channel is used to handle outdoor air;Air-cooled evaporator is connected with water-cooled evaporator, provides cold for fresh air channel, air-cooled condenser is connected with water-cooled condenser, to provide heat.The system according to the different situation of air parameter accurately controls corresponding unit work in refrigeration dehumidification unit.The system and its control method are beneficial to reduce energy consumption, improve energy utilization efficiency.

The utility model discloses a kind of hybrid power system and semi-submersible aquaculture platform, including through green energy conversion DC power supply, through fossil energy conversion AC power supply and DC bus, DC power supply and DC bus between constitute first transmission line, first transmission line is arranged with the first DC-DC rectifier module being connected with DC power supply, first DC-DC rectifier module is connected with DC bus;AC power supply and DC bus between constitute second transmission line, second transmission line is arranged with the AC-DC rectifier module being connected with AC power supply, AC-DC rectifier module is connected with DC bus, DC bus is connected with DC-AC inverter module, DC-AC inverter module is connected with AC distribution board, DC bus in the utility model in different power supply current can be distributed to different load, ensure the efficient use of power, guarantee the stable power supply of load.

The invention provides a slow-release fixing seat, a preparation method thereof and an aerosol product. Raw materials of the slow-release fixing seat comprise tobacco materials so as to form the slow-release fixing seat or cover a fixing area of a heating body connected with the slow-release fixing seat. The tobacco material in the slow-release fixing seat can release flavor more slowly compared with a heating area under the action of the heating body with one end connected with the tobacco material, so that the defects that the aerosol generating matrix at the front end of the heating body bursts to release before smoking after being heated, and the content of released substances in the later period is sharply reduced are overcome; the flavor of the aerosol product is more uniformly released before and after smoking, and the smoking feeling is improved; in addition, due to the structural characteristics of the tobacco material, the tobacco material has the capability of adsorbing and containing liquid substances, so that the flexible regulation and control of the flavor adjusting agent become possible.

This invention provides a circulating dust-proof blower device for drying sesame seeds, relating to the field of sesame seed drying technology. It includes a housing and a blower assembly. The blower assembly includes a bracket connected to one side of the housing, on which a first drive motor is mounted. In this invention, the first drive motor on the bracket drives an impeller inside a volute to rotate, generating airflow. The airflow is sent into the housing through a connecting pipe and a connecting block at the volute's outlet. A heat source can be delivered into the housing via the blower assembly. In the material-turning assembly, sesame seeds are fed into a material cylinder inside the housing via a hopper. Hot air flows along a spiral guide groove on the side wall of the material cylinder, causing the hot air to circulate within the housing. A third drive motor drives a first synchronous wheel to rotate, which in turn drives a second synchronous wheel via a synchronous belt, causing the support frame to rotate and the material-turning plate to rotate, turning the sesame seeds so that they are in full contact with the hot air, achieving uniform drying and improving drying efficiency and cleanliness.

The application discloses a backflow pipeline for aluminum paste metering and feeding, and relates to the field of pipeline design.The backflow pipeline for aluminum paste metering and feeding comprises, in sequence from the inlet to the outlet, an aluminum paste stirring kettle, an aluminum paste circulating pump, an aluminum paste metering tank and a concrete preparation device, and is connected with the concrete preparation device;feeding valves and cut-off valves are arranged in sequence between the aluminum paste circulating pump and the aluminum paste metering tank;one end of the feeding valve is connected with the aluminum paste circulating pump through a tee joint;the other end of the feeding valve is connected with a backflow valve through the other end of the tee joint;the other end of the backflow valve is connected with the top of the aluminum paste stirring kettle;the pipeline connected in sequence between the aluminum paste stirring kettle, the aluminum paste circulating pump, the feeding valve, the cut-off valve, the aluminum paste metering tank and the concrete preparation device is a feeding pipeline;the pipeline connected in sequence between the aluminum paste stirring kettle, the aluminum paste circulating pump and the backflow valve is a backflow pipeline;the pipeline design is optimized, and linkage control of each component is realized, so that the accuracy of the aluminum paste quality in the aluminum paste metering tank is improved, and the quality of concrete products is improved.

This invention discloses a system for coupling underground salt cavern energy storage and nuclear energy based on a dynamic heat pipe, belonging to the field of physical energy storage technology, and mainly used for coupling underground salt cavern energy storage and nuclear energy. The technical problem to be solved by this invention is to provide a system for coupling underground salt cavern energy storage and nuclear energy based on a dynamic heat pipe, including a salt cavern, a compressor, an expander, a nuclear power plant, and a dynamic heat pipe system. The compressor and expander are electrically connected to the nuclear power plant. The dynamic heat pipe system includes an interconnected evaporation section, a condensation section, and a storage tank. The evaporation section is connected to the nuclear power plant, and the condensation section is located between the salt cavern and the expander. A storage tank is located between the evaporation section and the condensation section, containing a heat exchange medium. A mechanical pump is located between the storage tank and the evaporation section. This invention utilizes a dynamic heat pipe system to achieve coupling between a nuclear energy system and an underground salt cavern energy storage system, fully utilizing the energy generated by the underground salt cavern and the nuclear power plant, and improving the energy utilization rate of the entire coupled system.

This invention discloses a method for simulating radiated noise signals from a counter-rotating propeller target, comprising: First, setting basic parameters of the counter-rotating propeller target, including simulation time, simulation harmonics, and signal-to-noise ratio (SNR). Second, setting signal parameters of the counter-rotating propeller target under stable navigation conditions, including noise fundamental frequency and frequency fluctuation variance, and setting signal parameters of the counter-rotating propeller target under maneuvering conditions, including maneuvering time and fundamental frequency increment. Third, generating signal frequency curves based on the signal parameters of the counter-rotating propeller target under stable navigation and maneuvering conditions. Fourth, calculating the signal phase point by point based on the counter-rotating propeller target signal frequency curves to generate a simulated counter-rotating propeller noise line spectrum signal. Fifth, adding noise according to the SNR and summing the results to generate a simulated counter-rotating propeller target noise signal. This method can accurately describe the time-varying frequency characteristics under different conditions, ensuring phase continuity and time-frequency consistency.

The invention belongs to the technical field of biomass gasification production, and particularly relates to a green hydrogen coupled biomass hydrogasification furnace system and hydrogasification method.The system comprises a biomass gasification furnace, and a furnace cavity of the biomass gasification furnace is sequentially divided into a drying layer, a hydropyrolysis layer, a hydrogasification layer, a reduction gasification layer and an oxidation slag layer from top to bottom; a biomass feeding hole is formed in the top of the biomass gasification furnace, and a spiral stirring mechanism is arranged in the center of the biomass feeding hole. The spiral stirring mechanisms are arranged on the drying layer and the hydropyrolysis layer which are most prone to generating tar, materials are mechanically crushed and stirred, bed blockage caused by biomass raw material bonding and tar foam is effectively prevented, and stable operation of the gasifier is guaranteed.

The invention relates to the technical field of computers, in particular to an intelligent question answering system based on a natural language, which comprises an intention evolution modeling module for receiving a current question and a historical context and constructing an evolution path diagram comprising task nodes, transfer edges and sub-intentions; the external knowledge triggering and fusing module judges whether domain knowledge is introduced or not according to semantic integrity and generates a domain enhanced semantic graph; and the structured generation module based on the controllable inference chain constructs an inference chain structure chart, executes controlled generation, and outputs a structured answer text with a basis annotation, a style label and a consistency prompt. Through intention evolution modeling, external knowledge enhancement and a controllable inference chain generation mechanism, accurate analysis of fuzzy semantics in natural language questions and answers, dynamic fusion of professional knowledge and controllable output of answer structures and styles are achieved, and the understanding depth and generation quality of a question and answer system are improved.

The utility model discloses a multifunctional temperature and humidity control air glove box device which comprises a glove box body, a first cold and heat exchange mechanism, a second cold and heat exchange mechanism, a rotary dehumidifier, a first pipeline switch, a second pipeline switch and a third pipeline switch. An air outlet of the glove box main body is communicated with an air inlet, and a first cold and heat exchange mechanism, a rotary dehumidifier and a second cold and heat exchange mechanism are sequentially arranged on a communicated channel in the direction from the air outlet of the glove box main body to the air inlet of the glove box main body; the first to third pipeline switches are used for realizing the change of the pipeline state; according to the scheme, dry air is generated through the rotary dehumidifier, is subjected to secondary cooling and dehumidification through the first cold and heat exchange mechanism and the second cold and heat exchange mechanism and then is input into the glove box body, a continuously-flowing low-temperature dry environment is formed, compared with a traditional nitrogen glove box, the device can efficiently remove organic solvent atmosphere, nitrogen dependence and operation cost are remarkably reduced, and the service life of the glove box is prolonged. The method is suitable for preparing semiconductor devices sensitive to temperature and humidity, such as perovskite solar cells.

This invention discloses a copper slag modification and granulation system with real-time adjustable atmosphere and composition, comprising: a smelting furnace with an adjustable fume hood on top; an insulated chute for conveying the modified slag to the granulation section; a granulation device for dry centrifugal granulation of the modified slag; the adjustable fume hood having: an oxidizing gas interface for introducing oxidizing gas into the furnace; a reducing gas interface for introducing reducing gas into the furnace; a backup gas interface for introducing either oxidizing or reducing gas; an openable / closable observation / feeding port for observing the furnace state and / or adding modified materials to the furnace; and a flue gas outlet for discharging the flue gas generated in the furnace. This system integrates multiple gas interfaces and a feeding port on the adjustable fume hood of the smelting furnace, enabling active control of the slag's oxidation-reduction state and chemical composition during the slag holding stage, thereby optimizing the slag's properties and creating conditions for subsequent granulation processes.

This invention discloses a 3D printing method and apparatus for one-step forming of non-smooth patterned corrugated films based on acoustic vibration. The apparatus integrates an acoustic wave generator and an ultraviolet projector, which can use acoustic waves to create corrugated textures on the surface of printing ink. The ultraviolet projector is used to perform regionally controllable curing of the ink, achieving efficient and precise corrugated film printing. The acoustic wave generator group exists in the form of a 3x3 rectangular array, with each generator operating independently, providing flexibility for the formation of corrugated textures. During the printing process, by adjusting the operating frequency and volume of the acoustic wave generator, the density and height of the non-smooth patterned corrugated texture on the ink surface can be controlled. Compared with other traditional 3D printing methods, this invention can quickly and accurately prepare non-smooth patterned corrugated films. The prepared films can be installed on various objects, achieving multiple superior properties such as reduced resistance, enhanced heat dissipation, and adjusted optical performance.

This utility model relates to the field of materials science and technology, and discloses a surface modification device for nano-silica powder. It includes a supporting substrate, a heating and mixing mechanism fixedly connected to the top of the supporting substrate, a rotating plate rotatably connected inside the processing barrel, a connecting rotating column fixedly connected to a side of the rotating plate, multiple rotating mixing plates fixedly connected to the outside of the connecting rotating column, a first heating column fixedly connected inside the processing barrel, and a second heating column fixedly connected inside the processing barrel. In this utility model, the internal heating of both the first and second heating columns is simultaneous. The use of a telescopic protective shell and a rotating plate ensures both uniform internal mixing and internal cleaning. This combination of multiple functions improves processing efficiency, facilitates internal cleaning while mixing nano-silica powder and a modifier, reduces maintenance difficulty, and significantly enhances the overall practicality of the equipment.

This utility model relates to the field of pipeline device technology and discloses a porous pipeline device for sewage aeration. The porous pipeline device includes a sewage tank, on which a decontamination mechanism is installed. The decontamination mechanism includes an air inlet pipe. To improve the filtration effect of the aeration gas, this porous pipeline device for sewage aeration incorporates a decontamination mechanism. When the gas enters the gas collection box from the air inlet pipe, it undergoes further fine filtration with the help of coarse and dense filter plates. Multiple sets of branch pipes increase the distribution density of the exhaust ports and the gas discharge area. Simultaneously, the filter screen breaks the gas into multiple small bubbles, allowing the gas to contact the sewage over a wider range and at more angles, thereby improving the gas-liquid mixing effect. Furthermore, the conical design of the conical shroud prevents impurities in the water from adhering and accumulating near the top of the branch pipes; instead, they slide off along the slope under the action of water flow, ensuring stable operation of the device.

The invention provides a turbulent flow generating device with adjustable parameters, which comprises a plurality of generating units arranged in sequence, and each generating unit comprises a lifting base, a mounting plate, an adjusting unit and a wind shielding unit. The mounting plate is arranged on the lifting base, and a plurality of mounting holes are formed in the mounting plate; a plurality of adjusting units are arranged, and the adjusting units are in one-to-one correspondence with the mounting holes; each adjusting unit is used for forming a central ventilation opening in the corresponding mounting hole and adjusting the opening degree of the central ventilation opening; the wind shielding unit comprises a plurality of blocking structures, and the blocking structures correspond to the mounting holes one to one; the blocking structures are used for forming annular ventilation openings with the corresponding mounting holes and adjusting the opening degrees of the annular ventilation openings. The invention provides a turbulent flow generating device with adjustable parameters, and aims to solve the problem that in the prior art, turbulent flow field parameters are inflexible to adjust in the turbulent flow field simulation process.

This utility model relates to the field of safety passage technology and discloses a cross-span safety passage for a double-span bridge deck, comprising: a passage mechanism including a first passage step and a second passage step disposed below the first passage step. The second passage step is provided with a connecting component for connecting to the first passage step. The connecting component includes a groove formed on both sides of the second passage step and a threaded post fixed to the bottom side of the first passage step and slidably inserted into the groove. The threaded post passes through the groove and is provided with a limiting nut for abutting the second passage step against the first passage step. This utility model has a reasonable structure, which facilitates construction personnel to walk across the double-span bridge deck. The overall length and height of the passage mechanism can be adaptively adjusted, and the placement position of the passage mechanism can be flexibly controlled, making it highly flexible and easy to use.