131 results about "Wave oscillation" patented technology

The invention relates to an electrocerebral co-frequency detection method, an electrocerebral co-frequency stimulation method and an electrocerebral co-frequency stimulation device. The electrocerebral co-frequency detection method is capable of counting brainwave co-frequency coefficients in accordance with detected electrocerebral data so that different frequency domains of brainwaves can be timely founded out. The electrocerebral co-frequency stimulation method helps to fulfill the purpose of safe electrocerebral co-frequency by means of visual and audio simulations, eye movement and auxiliary microelectric current simulation and is combined with the electrocerebral co-frequency detection method for carrying out cerebral fixed-point co-frequency electrical stimulation. By efficiently and reliably inducing brainwave co-frequency oscillation, normal sleep is induced. The electrocerebral co-frequency stimulation device is capable of inducting sleep by means of normal physiological stimulation and eye movement under real-time adjustments of electrocerebral signals. Specifically, sleep is induced based on eye movement (rapid jumping and uniform tracking movement) in combination with synchronous same-frequency audio stimulation. A patient suffering from severe insomnia and have difficulties in induction of visual and audio stimulation can be matched with fixed-point micro-electrical stimulation to achieve whole-brain slow-wave oscillation; and the function of rapidly and safely inducting sleep is fulfilled.

The invention discloses a film bulk acoustic resonator and a production method thereof. According to the film bulk acoustic resonator obtained through the production method for the film bulk acoustic resonator, a plurality of sacrifice material sheet bodies are formed at upper and lower ends of an oscillation device sheet body. The sacrifice material sheet bodies are partially overlapped, so the sacrifice material sheet bodies are connected in sequence, and the sacrifice material sheet bodies are easy to remove. After the sacrifice material sheet bodies are removed, all sides of an overlapping boundary polygon formed by overlapping cavities formed at upper and lower ends of the sacrifice material sheet bodies are unparallel, so the possibility of generating stationary wave oscillation by boundary reflection of horizontal parasitic waves of the film bulk acoustic resonator is reduced, and the parasitic crosstalk is mitigated. According to the film bulk acoustic resonator and the method, the film bulk acoustic resonator and a CMOS circuit are integrated, and the reliability of the device is improved.

The invention which relates to a scaling-free microwave photocatalytic reactor applied to industrial wastewater degradation processing belongs to the technical field of wastewater processing. According to present microwave photocatalytic degradation technologies aiming at industrial wastewater containing organic pollutants, the outside surface of a quartz tube used for the protection of a non-polar ultraviolet lamp screen in a device scales after being immersed in the wastewater liquid for a long time, and the resulting scaling layer seriously influences the ultraviolet light's permeability of the quartz tube, and causes the great reduction of the processing efficiency of present microwave photocatalytic reactors. The invention aims to solve above problems. According to the invention, an ultrasonic transducer is adhesively arranged on the outside surface of each of side walls of the microwave photocatalytic reactor, ultrasonic waves are emitted to the inside of the reactor, and instant scale removal from the outside surface of the quartz tube is realized through using ultrasonic wave oscillation under non-stop non-disassemble conditions, so the high ultraviolet light's permeability of the quartz tube is maintained, and the continuous high efficiency of the microwave photocatalytic reactor is maintained.

The invention relates to the field of detection of food additives, in particular to a fast detection method for a food preservative agent and an antioxidant, which is characterized in that the method comprises the following steps: gathering samples of the preservative agent and the antioxidant in food, preparing standard solution, and using a gas chromatograph to measure the standard chromatogram; adding the to-be-detected samples into saturate sodium chloride solution and vibrating in an ultrasonic wave oscillation instrument, adding dilute nitric acid to adjust the pH to 4-5, filtrating and removing insoluble substances, and adding normal hexane into the filtrate to perform the first extraction; preparing mixture acid using dilute phosphoric acid and dilute sulfuric acid in the volume ratio of 3:1, using the mixture acid acidizing to extract residual, ultrasonic vibrating for 8-10 min, and adding ethanol to perform a second extraction; and injecting the extraction liquid into gas chromatograph to perform measuring, and comparing with the standard chromatogram. According to the method provided by the invention, the sample pretreatment method is simplified, the separation and purification steps are reduced and the harm of separation and purification agents to detection personnel is reduced.

The invention relates to the technical field of sonic wave fish driving and aims to provide an underwater net cage multi-beam fish driving monitoring system and an underwater net cage multi-beam fish driving monitoring method. The monitoring system comprises an underwater net cage, an underwater monitoring device and a data processing device, wherein the underwater monitoring device comprises a phased array transducer array and a high-frequency sonic wave oscillation circuit, which are arranged outside of the net cage; the data processing device comprises a data processing module, a first wireless transmission module, a computer control center and a second wireless transmission module, wherein the data processing module and the first wireless transmission module are distributed around the net cage, the computer control center is placed on a bank and the second wireless transmission module is connected with the computer control center; and the phased array transducer array and the high-frequency sonic wave oscillation circuit are both connected with the data processing module, and the data processing module, the first wireless transmission module, the second wireless transmission module and the computer control center are connected in sequence. The system and the method can determine the accurate position of the breakage of a net and can effectively prevent the fish stock for escaping from the net.

A microreactor has a plurality of flow channels and a joint flow channel where the plurality of flow channels are joined. Fluids flowing through the plurality of flow channels join in the joint flow channel to react with each other. The microreactor further has an ultrasonic wave oscillation section which applies an ultrasonic wave to the joint flow channel.

The various embodiments of the present invention provide improved methods and circuits for generating millimeter-wave oscillations. Generating millimeter-wave oscillations may involve providing a semiconductor device comprising at least two terminals and a polar heterojunction formed from two semiconductor materials. A voltage bias may be applied to at least two terminals of the device in which the voltage enhances a two-dimensional electron gas (2DEG) layer at the polar heterojunction and produces a sharply-peaked but spatially-localized electric field within the 2DEG with a large longitudinal component, wherein the longitudinal component of the electric field serves as a nucleation site for a plurality of propagating dipole domains observable as a plurality of self-sustaining millimeter-wave oscillations.

The invention discloses a calibration method belonging to the field of quantum computing, in particular to a single quantum logic gate operation. The calibration method comprises the following steps:determining that the modulation amplitude signal is a product of an adjustable proportion constant and a first digital signal; determining a plurality of pulse modulated signals having different modulated amplitude signals by changing the adjustable proportional constant; obtaining a distribution probability value corresponding one-to-one to each of the pulse modulated signals having different modulated amplitude signals; Taking the adjustable proportional constant as an independent variable and the distribution probability value as a dependent variable, performing wave oscillation exponentialattenuation fitting, and obtaining a wave oscillation period according to the fitting result, and recording the period as a standard period; the target quantum logic gate operation to be calibrated is determined, and the value of the adjustable proportion constant of the pulse modulation signal corresponding to the target quantum logic gate operation is determined according to the rotation angleand the standard period of the target quantum logic gate operation. The invention can realize the calibration of the operation of the single quantum logic gate.

The invention discloses a frostless refrigerator capable of defrosting through coupling of ultrasonic waves and super-hydrophobic materials, and a control method of the frostless refrigerator. The frostless refrigerator comprises a master controller, an evaporation chamber, a refrigerating chamber, a cold storage chamber, a compressor, a drainage device, an environmental temperature sensor and a magnetic sensitive control air valve, wherein the master controller is separately connected with a ultrasonic wave oscillation system, the compressor, an electric heater, the magnetic sensitive control air valve, a fan, the environmental temperature sensor, a refrigerating chamber temperature sensor, an evaporator temperature sensor and a cold storage chamber temperature sensor, and the ultrasonic wave oscillation system and the electric heater are defrosting devices; the surface of an evaporator, the surface of a refrigerating chamber air channel, the surface of a refrigerating chamber air-return vent, the surface of a cold storage chamber air channel, and the surface of a cold storage chamber air-return channel are made from super-hydrophobic materials. According to the frostless refrigerator and the control method thereof disclosed by the invention, frosting surfaces are treated by using the super-hydrophobic materials, ultrasonic waves and electric heating are coupled, on-line defrosting is performed in a manner that the frostless refrigerator does not stop, the stable running environment of the refrigerator is guaranteed, and the service life of the refrigerator is prolonged.

The invention belongs to the field of paint and particularly relates to nanometer heat isolation paint and a preparation method of the nanometer heat isolation paint. The nanometer heat isolation paint consists of the following ingredients in percentage by mass: 30 to 40 percent of titanium white powder, 6 to 7 percent of nanometer zirconium oxide, 10 to 15 percent of nanometer aluminum oxide, 0.5 to 5 percent of wetting agents, 0.5 to 5 percent of dispersing agents, 0.5 to 5 percent of defoaming agents, 0.5 to 5 percent of silane coupling agents, 0.5 to 5 percent of multifunctional auxiliary agents, 10 to 40 percent of film forming materials and 10 to 40 percent of solvents, wherein acrylic resin is used as the film forming materials, the titanium white powder is used as pigment, water is used as the solvents, the nanometer zirconium oxide and the nanometer aluminum oxide are used as heat isolation filling materials, and the heat isolation paint is obtained after the mixing, uniform stirring and ultrasonic wave oscillation treatment. The heat isolation paint provided by the invention is uniformly coated on the surface of a work surface, the heat isolation and heat insulation effects can be reached, simultaneously, the nanometer heat isolation paint provided by the invention has the effects of radiation protection, falling prevention, waterproof function, fireproof function, crack prevention, freezing prevention, washing and brushing resistance, acid and base resistance and stain resistance, in addition, the cost is low, the construction is convenient, and the use is safe.

The invention provides an electromagnetic wave generation device. The device includes a substrate provided with a terahertz wave oscillation section including a resonant tunneling diode structure, a two-dimensional electron layer having a semiconductor heterojunction structure, and a transistor section including a source electrode and a drain electrode provided at end portions of the two-dimensional electron layer and a gate electrode provided above the two-dimensional electron layer. The terahertz wave output of the terahertz wave oscillation section changes distribution of electrons in the two-dimensional electron layer.

The invention provides an energy stability-domain building system and method for a power system. The energy stability-domain building system comprises a data acquisition module, a system dynamic-equation generating module, a damping energy solution module, an energy stability-domain building module and a result output module, wherein the data acquisition module is used for acquiring network structure parameters, and the frequency and the power angle of an engine in the system; the system dynamic-equation generating module is used for obtaining the dynamic equation of the system; the damping energy solution module is used for calculating the damping energy accumulated in the armature reaction of the engine of the system during one cyclic wave oscillation; the energy stability-domain building module is used for building an energy stability domain of the power system, which reflects the dynamic stability and the transient stability of the system; the result output module is used for outputting the energy stability domain of the power system. Through the adoption of the energy stability-domain building system and method for the power system, provided by the invention, the static stability and the dynamic stability of the system can be reflected, and the accuracy is higher.

The invention relates to the field of active carbon preparation, in particular to large-hole-diameter active carbon and a preparation method thereof. The method comprises the following steps of 1, crushing active carbon raw materials; soaking the raw materials into an ethanol solution; adding hydroxide into the ethanol solution to be used as a pore-enlarging agent; performing ultrasonic wave oscillation; then, performing water washing drying to obtain pre-treated active carbon; 2, adding a surface active agent into the pretreated active carbon for uniform mixing; 3, performing heating under nitrogen gas protection to obtain pretreated active carbon; next, switching the nitrogen into mixed gas of water vapor and carbon dioxide; performing activation to obtain the large-hole-diameter activecarbon. The large-hole-diameter active carbon and the preparation method have the advantages that firstly, physical and chemical methods are used for simultaneously acting for pore expansion; secondly, in the activation process, the mixed gas of carbon dioxide and water vapor is used for physical activation; the active carbon pore diameter is expanded under the cooperated effects of the carbon dioxide and the water vapor.

A film pattern forming method is for forming a film pattern on a predetermined region of a substrate that has a predetermined shape. The film pattern forming method includes: rendering a surface of the substrate liquid-repellent; applying droplets of a liquid containing material for forming the film pattern in a margin area of the predetermined region in which the film pattern is to be formed, thereby forming a margin band of the applied droplets and forming a margin band film by drying or hardening the margin band; rendering the surface of the substrate lyophilic; and applying droplets of the liquid in the predetermined region circumscribed by the margin band film and thereby filling the predetermined region.

In various embodiments, a traveling wave amplifier circuit is disclosed. The traveling wave amplifier circuit is configured to receive an RF wave and an electron beam. The traveling wave amplifier effects synchronized interaction between the RF wave and the electron beam. The traveling wave amplifier circuit comprises a waveguide. The waveguide comprises a plurality of asymmetric cells arranged periodically. The waveguide is configured to receive an electron beam. Each of the asymmetric cells comprises at least one asymmetrical structure within the asymmetric cell to modify the dispersion relation of the waveguide.

An ultrasonic atomization dust-settling nozzle for an underground coal mine is characterized in that an air inlet channel is vertically arranged along the tangential direction of a cylindrical cavity and led into the cylindrical cavity, the cylindrical cavity is communicated with an air whistle nozzle along a central axis, an air whistle comprises the air whistle nozzle and an air whistle resonance cavity, the air whistle nozzle is fixed to the bottom of a nozzle body, the air whistle resonance cavity is correspondingly fixed to the top of the nozzle body, a nozzle body forming space is arranged on the periphery of the air whistle to form a sonic wave oscillation atomization area, the nozzle body comprises a nozzle cylinder and a nozzle base for swirling the air whistle by means of connection, the nozzle cylinder is arranged on the periphery of the air whistle, a water inlet is arranged on the lower portion of the nozzle cylinder, an adjusting bolt hole is arranged at the top axis of the nozzle cylinder, and a nozzle is arranged at the top side end of the nozzle cylinder. By the aid of an airflow sounder, spark is avoided, the ultrasonic atomization dust-settling nozzle is reliable in working performance and convenient in cleaning, liquid drops with large diameters are secondarily atomized by means of combined ultrasonic atomization, atomization efficiency and power are improved, and the ultrasonic atomization dust-settling nozzle can be adjusted into an atomization mode and an air humidification mode.

The invention specifically discloses an ultrasonic cleaning machine for decreasing vibration and reducing noise. The ultrasonic cleaning machine comprises a box body (1), a cleaning container (2) in the box body (1), an ultrasonic wave oscillation device (3), an ultrasonic wave energy converter (4) and a sealing cover (5), wherein the inner surface of the sealing cover (5) is provided with a noise reduction layer (6), and a vibration decreasing interlayer (7) is arranged between the box body (1) and the cleaning container (2). The ultrasonic cleaning machine is simple in structure, the inside of the ultrasonic cleaning machine is provided with the noise reduction layer and the vibration decreasing layer, and vibration and noise pollution can be effectively reduced.

The invention relates to a helical line slow-wave structure with asymmetrical metal loaded blocks. The slow-wave structure comprises a tube shell, a helical line and a clamping rod positioned between the helical line and the tube shell, wherein the slow-wave structure further comprises at least one metal loaded block with asymmetrical angular directions; and the metal loaded blocks are positioned on the inner wall of the tube shell and are not in contact with the helical line. According to the helical line slow-wave structure provided by the invention, the metal load blocks with asymmetrical angular directions are arranged in the helical line slow-wave structure of any clamping structures, an electromagnetic wave transmission forbidden band is formed; therefore, interaction of electron beams and backward waves is avoided, so that the backward wave oscillation is restrained; and the helical line slow-wave structure can be manufactured conveniently under a normal line-cutting tube shell manufacturing process condition.

The invention relates to an energy accumulator vibration attenuation valve group with a locking function. The energy accumulator vibration attenuation valve group is formed by connecting a large-power vibration attenuation valve and a normally opened two-position two-way rigid locking valve in series and is connected in series between an energy accumulator and a hydro-pneumatic suspension cylinder, wherein the large-power vibration attenuation valve is formed by connecting three elements, namely, a forward one-direction valve, a throttle valve and a backward one-direction valve in parallel, so as to achieve the purposes of bidirectional throttle vibration attenuation, hydraulic impact reduction and water surge wave oscillation reduction. After the rigid locking valve is powered on and locked, a whole chassis form a rigid platform, so that the working stability can be improved.

The invention belongs to the technical field of ocean power generation and deep sea aquaculture, and particularly relates to a spherical nanometer friction generator unit and a net cage based on the generator unit. By utilizing the characteristic that the aquaculture net cage is easily influenced by wave oscillation in seawater, the spherical nanometer friction generator unit is arranged on the net cage netting, and low-frequency wave energy is effectively absorbed through the spherical nanometer friction generator unit, so that self-power-supply in the net cage culture process is achieved, the oscillation amplitude of the deep-sea culture cage in a severe environment can be reduced to a certain extent while wave energy is fully utilized for power generation, and the stability of the deep-sea culture cage is improved. The spherical nanometer friction generator unit provided by the invention adopts an innovative double-layer structure, so that nanometer friction area is increased; and the internal spherical housing can freely rotate around the rotating shaft by installing a rotating shaft device, so that a silica-gel ball in the inner-layer space of the internal spherical housing rolls under the driving of friction rolling of the silica-gel ball in the external space, the nanometer friction effect is further promoted, and the power generation efficiency is improved.

The invention relates to a method for preparing a porous titanate adsorbent through acetic acid activation on sludge. The process steps comprise: taking a proper amount of sludge to prepare a mud slurry, placing into a mashing homogenizing machine, adding glacial acetic acid to the mud slurry, carrying out mashing homogenizing for 30-60 min, carrying out ultrasonic wave oscillation treatment for 20-60 min, sealing, carrying out thermal insulation dipping for 12-24 h at a temperature of 50-60 DEG C to obtain homogenized acetic acid activation sludge slurry, slowly adding tetrabutyl titanate to the acetic acid activation sludge slurry in a dropwise manner under a continuous stirring condition, continuously stirring for 20-30 min to obtain a titanium-containing sludge gel, taking an alkaline earth metal compound, adding to the titanium-containing sludge gel, uniformly stirring, heating to a temperature of 85-95 DEG C, carrying out a thermal insulation stirring reaction, evaporating, drying at a temperature of 105 DEG C to prepare a titanium-alkaline earth metal-sludge dry gel, and calcining the titanium-alkaline earth metal-sludge dry gel for 5-6 h at a temperature of 650-950 DEG C in an air atmosphere to obtain the finished product. According to the present invention, the sludge is directly utilized and the low price titanium tetrachloride is adopted to provide the titanium source to prepare the porous titanate heavy metal adsorption material with characteristics of low cost and high performance.