29results about How to "Control rate" patented technology

The embodiment of the invention provides a control method of an oxygen generation system and an adjustable oxygen generation system, and belongs to the technical field of medical instruments. The control method of the oxygen generation system comprises the steps that 1, the threshold value interval of a pulse rate normal value and the threshold value of an oxyhemoglobin saturation normal value are obtained; 2, receiving a pulse rate monitoring value and a blood oxygen saturation monitoring value of a user of the oxygen generation system; 3, according to the threshold value interval, the threshold value, the received pulse rate monitoring value and the received oxyhemoglobin saturation monitoring value, the oxygen output quantity of the oxygen generation system is controlled, and the oxygen output quantity is the oxygen generation pressure and / or the oxygen output rate. According to the method, the performance parameters of the oxygenerator can be timely and automatically adjusted according to the physiological parameter change of the user of the oxygenerator, so that the requirements of the user at the current moment are met.

The invention provides an aluminum-based composite material reinforced by nickel-coated silicon carbide through a magnetron sputtering dry method and a preparation process of the aluminum-based composite material, and relates to the technical field of metal-based composite materials and advanced electronic packaging thermal management materials. Comprising the following steps that S1, silicon carbide particles coated with nickel through a magnetron sputtering dry method and aluminum powder are put into a mold to be subjected to compression molding, and an initial blank is obtained; and S2, the initial blank prepared in the step S1 is placed in a re-pressing sintering furnace under the inert gas protection condition, continuous re-pressing is conducted under the temperature condition ranging from the temperature lower than the aluminum melting point by 50 DEG C to the temperature higher than the aluminum melting point by 200 DEG C, and the nickel-coated silicon carbide reinforced aluminum-based composite material obtained through the magnetron sputtering dry method is obtained. The aluminum-based composite material reinforced by magnetron sputtering dry nickel-coated silicon carbide disclosed by the invention is excellent in heat-conducting property and mechanical property and long in service life.

The invention discloses a preparation method of a copolyamide hot melt adhesive with low VOC (volatile organic compound) emission, which comprises five steps of feeding, salt forming reaction, polymerization reaction, pressure release and negative pressure stage, and is mainly characterized in that the low-VOC copolyamide hot melt adhesive is produced and synthesized by adjusting a production process, mainly adjusting a reaction process in the salt forming stage in a polyamide hot melt adhesive synthesis process. The copolyamide hot melt adhesive is synthesized by adopting a specific salt forming process and a synthesis route, and the VOC emission of copolyamide is low and does not exceed 10g / kg.

The application provides a high-porosity Raney nickel electrode and a preparation method thereof, and relates to the technical field of Raney nickel electrodes and preparation thereof. The preparation method of the high-porosity Raney nickel electrode effectively controls the dealuminization rate and the pore uniformity through a preparation process of'sintering treatment + special electrochemical dealloying treatment', and stably prepares the high-porosity Raney nickel electrode. A new process for preparing the high-porosity Raney nickel electrode in an environmentally friendly manner is provided, which replaces the traditional corrosion pore-forming process of a strong alkaline chemical solution and reduces pollution. The prepared high-porosity Raney nickel electrode has a high porosity of up to 52%, and the pore structure is stable, so that the catalytic activity and mechanical stability of the electrode are effectively improved.

The invention relates to the field of fluorine chemical processes, in particular to a molybdenum hexafluoride sampling device and method. The device comprises a molybdenum hexafluoride steel cylinder, an inert gas steel cylinder, a buffer bottle, a first-stage absorption bottle, a second-stage absorption bottle and a third-stage absorption bottle, the absorption liquid is filled into the three-stage absorption bottle and is weighed, the pipeline is vacuumized and replaced after the three-stage absorption bottle is connected, the absorption bottle is purged, and the buffer bottle is vacuumized. The method comprises the following steps: heating a molybdenum hexafluoride steel cylinder, filling the molybdenum hexafluoride steel cylinder into a buffer bottle, filling inert gas, introducing the inert gas into an absorption bottle for absorption, purging a pipeline, weighing the absorption bottle, and detecting metal impurities by using ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer). According to the method, the problem that metal impurities in high-purity molybdenum hexafluoride are difficult to safely and accurately sample is solved, and a reliable and practical solution is provided for purity quality control of the key material molybdenum hexafluoride in the fields of semiconductors, nuclear industry and the like.

This invention discloses a high-crack-resistant cement-fly ash stabilized base course material, belonging to the field of road engineering technology. The material comprises the following components by mass percentage: 2.0-3.0% cement, 16-20% fly ash, and the balance being stabilized aggregate. The cement is an external admixture, the fly ash is an internal admixture, and the gradation of the stabilized aggregate conforms to the specifications of CF-A-2L or CF-A-2S in JTG / T F20-2015. This invention, by adopting a "low cement, high fly ash" mix design, controls the 7-day unconfined compressive strength within a reasonable range of 3.5-4.5 MPa, effectively avoiding the problem of regular transverse cracks in the base course caused by excessively high early strength. Simultaneously, the high fly ash content ensures the continuous growth of the material's later strength, with its 21-day unconfined compressive strength remaining stable above 6 MPa. Its overall performance is superior to the mix ratios recommended by current standards. This invention is particularly suitable for highway base course construction in arid regions with large temperature differences, such as Xinjiang.

An aerosol-generating device is disclosed. The aerosol-generating device includes: a storage chamber for storing an aerosol-generating substance; the core material is communicated with the storage chamber; a heat-generating body in contact with the core material and including nanoparticles that generate heat by surface plasmon resonance; and a light source configured to emit light toward the heat-generating body. The heat-generating body includes: a first portion that receives light emitted from the light source; and a second portion disposed outside the first portion and having a plurality of holes formed therein.

The invention discloses a silicon dioxide aerogel powder mixing device and a using method thereof.The silicon dioxide aerogel powder mixing device comprises a stabilizing table, a collecting frame is installed at the upper end of the stabilizing table, a movable shaft is installed at the front end of the collecting frame, a closing cover is installed at one end of the movable shaft, and a hydraulic cylinder is installed at the other end of the collecting frame. Silicon dioxide aerogel powder needing to be mixed is poured into a stirring tank in the device through a feeding frame, and when the silicon dioxide aerogel powder passes through a gravity overturning plate installed in the feeding frame, the gravity overturning plate bears a certain weight and then is overturned to pour the silicon dioxide aerogel powder into the stirring tank; according to the stirring device for the silicon dioxide aerogel powder, the stirring rod is driven by the driving motor to rotate when the silicon dioxide aerogel powder enters the stirring tank, and during rotation, the waved plate mounted at the lower end of the stirring rod is used for raising and stirring the silicon dioxide aerogel powder accumulated at the bottom of the stirring tank more sufficiently, so that the material mixing operation is carried out.

The present invention relates to a short-process preparation method of a large-size high-strength and plastic TiZrNbAl series high-entropy alloy, and belongs to the field of alloy technology. First, a self-consumable TiZrNbAl series high-entropy alloy cylindrical ingot with a diameter R ≥ 90 mm is forged to obtain a square billet; the deformation amount and deformation rate in different temperature ranges are controlled, and a basket structure can be obtained after forging without heat treatment. The structural characteristics of the alloy are: the aspect ratio of the intracrystalline lath α2 phase is ≥ 4, the average width of the α2 phase is 0.5~2μm, the room temperature static tensile strength of the basket structure reaches 900~1000 MPa, the plasticity reaches 7~12%, and the room temperature dynamic compression plasticity is ≥35%.

This utility model discloses a water treatment device and a cleaning machine. The water treatment device includes a housing and a magnetization module and an ozone generating component encapsulated within the housing cavity. The housing also has an inlet pipe and an outlet pipe. The magnetization module is located on one side of the housing cavity, and the ozone generating component is located on the other side. The ozone generating component includes an encapsulation box and an ozone generating module, a gas-liquid mixer, an overflow component, and a one-way valve housed within the encapsulation box. The inlet pipe, magnetization module, gas-liquid mixer, and outlet pipe are connected sequentially. The ozone generating module is connected to the gas-liquid mixer via a pipe. The overflow component is located on the pipe between the ozone generating module and the gas-liquid mixer. The one-way valve is located at the outlet of the ozone generating module. This utility model significantly reduces the internal piping distribution of the housing, thus reducing the space required for the housing and adapting to the installation size requirements of household dishwashers.

The utility model relates to the technical field of communication cable take-up and pay-off, and discloses a communication cable take-up and pay-off device for communication engineering, which comprises a bottom plate, the left side of the bottom plate is provided with a handrail, the bottom of the bottom plate is rotatably connected with four universal wheels, and the top of the bottom plate is provided with an adjusting assembly. The adjusting assembly comprises a movable seat, a stud, an open sliding hole, a twisting cylinder, a rotating column, a worm gear, a gear motor, a worm, a brush cylinder, a connecting plate and a tension spring. According to the communication cable take-up and pay-off device for communication engineering, components such as the brush cylinder are concentrated on the outer surface of the movable seat, so that a user only needs to adjust the height of the movable seat in a lifting mode during adjustment, the cost for forming the communication cable take-up and pay-off device is greatly reduced, meanwhile, the design that a gear motor is matched with a worm gear and a worm to be meshed is utilized, and the communication cable take-up and pay-off efficiency is improved. A user can control the rotating speed of the twisting cylinder by controlling the rotating speed of the output shaft of the gear motor, and therefore the speed of cable winding and unwinding is controlled.

Disclosed is a novel organic light emitting compound represented by Formula 1 having high current efficiency and low driving voltage (see disclosure), and an organic electroluminescent device comprising the same.

The invention provides a control method and device of an energy storage power station, electronic equipment and a storage medium. The control method comprises the steps that a charging / discharging parameter set and battery parameters of a target energy storage power station are acquired; establishing a loss cost equation based on the battery parameters; performing iterative calculation on the charge / discharge parameter set to obtain candidate charge / discharge parameters, and determining loss cost; and obtaining candidate optimal elements output by each iteration, determining a target optimal element, and controlling the target energy storage power station based on the charging / discharging parameters corresponding to the target optimal element. The solution space of the operation state of the energy storage equipment of the target energy storage power station is explored through the advantages of the self-adaptive update position function, the relatively optimal operation state solution set is found in combination with the current update frequency, self-adaptive adjustment is carried out according to the environment change, the operation flexibility and adaptability of the target energy storage power station are improved, and the energy storage power station performance is improved. A reliable and real-time optimization control strategy is provided, the energy efficiency and the control precision of the target energy storage power station are improved, and the control cost is saved.

The application discloses a preparation method of an alumina aerogel heat insulation felt, and comprises the following steps: adding an aluminum source precursor into a ketone substance to form a precursor solution through sufficient dissolution; adding an alcohol solvent containing a silicon source precursor, an amine substance and a catalyst into the precursor solution to form an alumina sol through uniform stirring; adding a surfactant into the alumina sol to form an alumina sol containing a light shielding agent through uniform stirring; adding light shielding agent particles into the alumina sol to form the alumina sol containing the light shielding agent; immersing a ceramic fiber felt into the alumina sol containing the light shielding agent to perform gel aging, so as to obtain a fiber felt / gel composite; and performing drying and heat treatment on the fiber felt / gel composite, so as to obtain the alumina aerogel heat insulation felt. The alumina aerogel heat insulation felt prepared by the method has the advantages of high temperature resistance, excellent heat insulation performance and good flexibility.

The present application relates to pile foundation engineering technical field, especially to a kind of rectangular pile intelligent hole-forming equipment, comprising: main rack, the main rack includes: the cross section control support of rectangular frame structure and swing shaft across the both sides of cross section control support;The horizontal cross-sectional dimension of the cross section control support is matched with target pile hole size;Cutting drilling assembly, the cutting drilling assembly includes: power support and multiple groups of horizontal arrangement cutting drill bit group;The through hole is equipped on the power support, and the power support is set on the swing shaft by the through hole;Swing drive mechanism, the swing drive mechanism includes: swing cylinder and limit switch symmetrically arranged on the swing shaft, and the swing cylinder is used to drive the power support;The limit switch is used to control swing amplitude;Intelligent control system, the intelligent control system includes: torque sensing piece for sensing the torque of cutting drill bit group and controller.

The present invention relates to a photochemical synthesis method of a full-peptide nano-colloid. In this method, a double-terminal dityrosine sequence peptide containing aspartic acid D and aminocaproic acid X is used as a cross-linkable precursor, and a mixed solution of a precursor, a photosensitizer, and an oxidant is photochemically synthesized in water. The precursor can be designed from scratch with the help of a peptide database, and standardized solid-phase synthesis can be achieved. The primary structure of the polypeptide chain segment can be transformed into a higher-level structure of a functional colloid within a few minutes by irradiation with a high-intensity photoreactor. The morphology and particle size of the colloid can be regulated by the concentration of the precursor and the pH environment, the degree of cross-linking and the speed of the synthetic reaction can be regulated by the intensity of illumination and the ratio of photosensitizer / oxidant, and the space occupancy, amphiphilicity, water solubility, charge distribution, and encapsulation characteristics of the colloid can be regulated by designing a hydrophilic / hydrophobic / ionic repeating peptide sequence. The nano-colloid is based on a complete peptide unit structure, has excellent biocompatibility, can encapsulate molecules and ions to construct nano-probes, and realizes biomedical applications such as fluorescence imaging and magnetic resonance imaging.

The present invention relates to a method for preparing imidazole carboxylate and the use thereof, and mainly solves the technical problems of the complex preparation process and cumbersome operation of imidazole carboxylate, and the low yield and low purity of the prepared imidazole carboxylate. According to the present invention, imidazole carboxylate is generated by reacting imidazole formyl chloride and alcohol in the presence of a first solvent and an organic base, and the imidazole carboxylate having a high yield and a high purity is further obtained by means of a post-treatment, which has the advantages of a simple preparation method, mild preparation conditions and strong operability.

The invention discloses a two-component polyurethane resin adhesive for circuit boards and a preparation process thereof, including an A-component adhesive and a B-component adhesive, wherein the A-component adhesive includes a fluoroacrylate monomer, a furan resin, N-(methoxymethyl)-2-acrylamide, hydroxypropyl acrylate, nano-alumina, a dispersant, and an organic solvent; and the B-component adhesive includes 1,3-diisocyanate, glycerol, 3-phenylbenzoic acid, an organic tin catalyst, polyethylene oxide, a defoamer, and an organic solvent. The invention can prepare a two-component polyurethane resin adhesive with high temperature resistance and good wetting and dispersion effect, solves the problems of poor high temperature resistance and unsatisfactory wetting and penetration effect of polyurethane resin, and realizes its application in circuit boards.

The utility model discloses a fluorination furnace convenient to loading relates to fluorination reaction technical field, including furnace body and feed inlet, the feed inlet is located one end at the top of furnace body, is equipped with the conveying cylinder on the furnace body, the conveying cylinder top is equipped with first motor, first motor output is equipped with spiral conveying rod, spiral conveying rod rotatory connection is in the conveying cylinder inside, the conveying cylinder lower part one end is equipped with the feed frame, the conveying cylinder upper part one end is equipped with the discharge frame, and the discharge frame is located above the feed inlet. The utility model adds solid reactant in the conveying cylinder inside, then rotates spiral conveying rod, reaches the effect convenient for adding solid reactant to the inside of furnace body, can more accurately control the adding time and rate of reactant, to maximum limit improves the reaction efficiency and selectivity, not only can simplify the operation process, reduces the operation difficulty, can improve work efficiency.

The utility model discloses a bone grain sorting and crushing device which comprises a rack, a material receiving hopper is arranged at the top of the rack, a crushing cabin is fixedly connected to the surface of the top of the material receiving hopper, and a crushing roller is rotationally arranged in an inner cavity of the crushing cabin; the rear side of the rack is fixedly connected with a driving motor, an output shaft of the driving motor is connected with a belt wheel, the left end of the smashing roller penetrates through the smashing cabin and is connected with an upper-layer driven wheel, and the belt wheel and the upper-layer driven wheel are in transmission through a belt. According to the utility model, the transmission shaft which is synchronous with the crushing roller and the auger roller is arranged at the position of the feed port of the crushing and sorting machine, and the plurality of baffles which rotate along with the transmission shaft are connected on the transmission shaft in an annular array manner, so that the space of the feed port is divided into a plurality of cavities with the same volume by the baffles; the higher the rotating speed of the crushing roller and the auger roller is, the higher the feeding speed is, so that the feeding speed is controlled; and meanwhile, the dust suppression mechanism is arranged on the crushing cabin, and dust in the crushing cabin is collected to suppress the dust from flying into the outside.

Provided in the present invention are a selective passivated contact cell and a preparation method therefor. The selective passivated contact cell comprises a substrate, wherein a first silicon oxide layer and a first polysilicon layer are sequentially arranged on the surface of one side of the substrate in a stacked manner; the surface of the substrate comprises a non-metal contact region and at least two metal contact regions; in the metal contact regions, a second silicon oxide layer and a second polysilicon layer are further sequentially arranged on the surface of the side of the first polysilicon layer that is away from the substrate, and a first electrode is arranged on the second polysilicon layer; and the thickness of the first polysilicon layer that is located in the metal contact regions is greater than the thickness of the first polysilicon layer that is located in the non-metal contact region. By means of providing a thick polysilicon layer in a metal contact region so as to block corrosion of a metal slurry, and forming a thin polysilicon layer in a non-metal contact region so as to reduce light absorption, the present invention has the characteristics of a simple structure, a simple preparation process, a high efficiency, etc.

The invention provides a combined three-dimensional high-speed scanning device applied to the field of three-dimensional scanning, which comprises a base mechanism, the base mechanism comprises a pair of fixed petals, a fixed assembly is mounted at the upper ends of the fixed petals, an adjusting mechanism is mounted on the fixed assembly, and the adjusting mechanism comprises a sliding ring. The inner side wall of the sliding ring is connected with a suspension mechanism through a plurality of electric telescopic rods, the suspension mechanism comprises a bottom ring connected with the electric telescopic rods, the upper end of the bottom ring is connected with a gear ring through a fixing rod, scanning mechanisms are symmetrically arranged on the gear ring, a horizontal monitor is arranged on the bottom ring, and the horizontal monitor is electrically connected to the electric telescopic rods through a control module. The levelness of the suspension mechanism is monitored in real time through the levelness monitor, data are sent to the control module for analysis, and the levelness of the suspension mechanism is adjusted in cooperation with the electric telescopic rod, so that the scanning mechanism on the suspension mechanism is always kept in a stable horizontal state.

A pharmaceutical composition, and a preparation method therefor and an application thereof. The pharmaceutical composition comprises a spiro-aryl phosphorus oxide or a pharmaceutically acceptable salt thereof as an active ingredient and a pharmaceutically acceptable carrier. D90 of the spiro-aryl phosphorus oxide or the pharmaceutically acceptable salt thereof is in a range of 40.3 µm to 79.6 µm. The pharmaceutical composition has high content uniformity, a high dissolution rate, and high in-vivo bioavailability, and can be used for treating cancer.

The application belongs to the technical field of valve sealing, in particular to a valve sealing structure and method for conveying high-temperature and high-pressure medium, which comprises a valve body, a valve cover, a sealing ring, a four-ring, a supporting ring, a heat insulation ring and a slow-release pre-tightening part; the slow-release pre-tightening part is arranged between the supporting ring and the valve cover, and the supporting ring is fixed on the valve body; when the pressure in the valve body changes, the maximum rate of discharge and suction of the fluid in the adaptive groove is controlled by using the flow limiting valve, so that the maximum rate of the valve cover moving away from or close to the four-ring is controlled, and thus the pressurization or depressurization rate of the sealing ring is controlled, thereby reducing the damage of pressure change to the sealing ring, especially in the environment of severe and repeated pressure fluctuations, the pressure change of the sealing ring can be kept within a relatively safe range, and the heat insulation ring can block the temperature of the medium, delay the temperature change rate of the sealing ring, and prolong the service life of the sealing ring in the long-term use.

The utility model discloses a concrete laser leveling and plastering device and relates to a trowelling device. The utility model aims to provide the laser leveling and plastering device for concrete, which can improve the leveling flatness and save manpower and material resources. The concrete laser leveling and plastering device comprises a movable frame structure and an automatic leveling device, the movable frame structure comprises a transverse frame and a longitudinal frame, a laser induction belt is arranged on the inner side of the transverse frame, and the automatic leveling device is movably arranged on the longitudinal frame. The automatic leveling device comprises a laser emitting end, a laser receiving end and a laser information processor, laser emitted by the laser emitting end can be received by the laser receiving end after being reflected by the laser induction belt, and the laser information processor is connected with the laser emitting end and the laser receiving end through electric signals. The automatic leveling device further comprises a height adjusting mechanism, an angle adjusting mechanism and a leveling plate, and the height adjusting mechanism and the angle adjusting mechanism are used for adjusting the height and the angle of the leveling plate respectively.

The application discloses a power supply system suitable for superconducting magnets and a control method thereof, detects output current of a superconducting magnet, and performs difference between the output current and a pre-set current steady-state working value, and takes the difference as input of PID control; decoupling control is performed by using the pre-set current steady-state working value, current charging and discharging rate and current charging and discharging rate of another superconducting magnet, output S1 * is obtained; output S1 * is added to output of the PID control, and PWM modulation is performed on the addition result, and a drive signal of a front-stage one-way full-bridge result switch tube of an isolation type DC-DC converter is obtained. The application effectively solves the problem that two superconducting magnets are affected by self-induction and mutual induction in the charging, stable operation and discharging process, and can control the charging and discharging rates of the two superconducting magnets.

The invention discloses a fuel cell system all-in-one controller and an application method thereof. Belongs to the fuel cell field. The first input end of the all-in-one controller is externally connected with a fuel cell stack, and internally connected to the output end of the all-in-one controller through an input EMI, a residual hydrogen discharge unit, an input capacitor, a DC / DC converter, an output capacitor, a PDU, an output relay unit, a protection unit and an output EMI in sequence; the output end is externally connected to a whole vehicle power battery; the second input end of the all-in-one controller is externally connected with the low-voltage storage battery and internally connected to the two ends of the input capacitor in parallel; a control system of the all-in-one controller is connected with the DC / DC converter and communicates with a fuel cell system controller; the output relay unit includes main positive and negative relays. According to the invention, the function safety and the product power density of the DC / DC are improved, the system cost is reduced, and effective identification of the adhesion relay is realized.

The invention relates to an automatic feeding and stirring control system for slurry production, and belongs to the technical field of slurry kneading. The system comprises a stirring barrel and a stirrer, a feeding mechanism is arranged on one side of the stirring barrel, the system further comprises a controller used for regulating and controlling the working state of the stirrer, a coupling assembly arranged between the stirring barrel and the stirrer, and a driving mechanism used for driving the coupling assembly to couple and decouple the stirring barrel and the stirrer, the positioning piece is used for fixing the posture of the stirring barrel. According to the invention, slurry can be automatically fed, the production efficiency is improved, the stirrer and the stirring barrel are controlled to be coupled or decoupled through the coupling assembly, the posture of the inclined stirring barrel is fixed through the positioning piece, and after the stirring barrel is inclined, a feeding station can be lowered, a material receiving station can be raised, and raised dust can be reduced; during feeding, the stirrer is decoupled and guides the materials into the stirring barrel, so that the production efficiency of the slurry is further improved.

The application belongs to the field of food science and functional biological materials, and discloses a whey protein gel based on procyanidin-calcium ion metal-phenolic network (MPNs) and a preparation method and application thereof. Specifically, MPNs are prepared by one-step self-assembly of procyanidin (PC) and calcium ions, and then the MPNs are added to a whey protein isolate (WPI) solution to form GWPI@MPNs gel by heating. The method is safe in raw materials, simple and green in process, and can be industrialized, and can customize the digestion rate and texture according to the food demand, solves the application bottleneck of "fast digestion and low gel strength" of whey protein, and provides a new way for the application of functional protein gel in nutrition supplement, meal replacement and food for the elderly.