986 results about "Ultrasonic technology" patented technology

The invention provides an ultrasonic wave based indoor three-dimensional positioning system and method, which belong to the technical field of positioning and navigation. The system is a wireless sensor network system, and through combining with the radio frequency technology and the ultrasonic technology, the system can implement accurate positioning by using a TDOA (time difference of arrival) algorithm and a trilateral location algorithm. By using the system provided by the invention, the centimeter-level positioning accuracy can be achieved, and the real-time positioning of a plurality of target nodes in a passive positioning mode can be realized, so that the application of the system in positioning or navigating a plurality of targets becomes possible. The system also has the advantages of good confidentiality, low cost and low power consumption.

An aqueous emulsion type fluoric hydrophobing-oleophobing agent is prepared from monomer, emulsifier and water through ultrasonic treating and triggered polymerizing. Its advantages are high hydrophobicity and oleophobicity, low cost, low polymerizing temp and high polymerizing speed.

The invention relates to an extraction method of sargassum fusiform active polysaccharide, which uses four-step extraction method as combined ultrasonic extraction, water extraction, alkali extraction, hot water extraction and ultrasonic technique, thereby improving sargassum fusiform polysaccharide extraction rate and avoiding damage on sargassum fusiform activity in polysaccharide extraction. Besides adding the character of polysaccharide on extract, the prepared sargassum fusiform active polysaccharide has high oxidation resistance, which is suitable for cosmetic technical field. In addition, the prepared sargassum fusiform polysaccharide uses active carbon adsorption and AB-8 macroporous adsorption resin to combine decolor and de-fishy, thereby resolving the key techniques as decolor and de-fishy of sea phaeophyceae polysaccharide as sargassum fusiform or the like, to improve polysaccharide purity, appearance quality and confirm the high oxidation resistance of de-fishy and decolor polysaccharide.

A proximity sensing system for a trailer which includes at least one non-contact proximity sensor which is in communication with a brake system. The brake system is configured to operate depending on what is sensed by the proximity sensor. The proximity sensing system may be in communication with electronics and a feedback device in the trailer, such as a display device and / or a speaker. The electronics is configured to control the feedback device depending on what is sensed by the proximity sensor. Preferably, a tractor includes an engine and an electronic engine controller in operable association with the engine. The proximity sensor is in communication with the electronic engine controller, and the electronic engine controller is configured to operate the engine depending on what is sensed by the proximity sensor. The proximity sensor may be optical, microwave or ultrasonic technology based, or may be some other suitable sensor.

The invention discloses cotton fibers with antibacterial and insect-resisting effects. The cotton fibers are characterized by being prepared from the following raw materials in parts by weight: 21-24 parts of cotton fibers, 10-12 parts of apocynum venetum fibers, 6-8 parts of silk fibers, 7-9 parts of cashmere fibers, 9-11 parts of pineapple fibers, 4-7 parts of polypropylene fibers, 6-8 parts of taxus chinensis superfine micro-powder, 3-5 parts of ailanthus altissima leaf extracted powder, 1-3 parts of zeolite powder, 1.1-2.3 parts of chitosan, 0.5-0.7 part of magnesium nitride, 0.8-1.4 parts of N,N-dicyanoethylaniline, 5-7 parts of sulfonated castor oil, 15-18 parts of fatty alcohol alkoxy ether, 1-2 parts of mashed garlic, 1.3-2.5 parts of cnidium monnieri cuss, 2.1-3.6 parts of coptis chinensis, 90-95 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 95-100 parts of 1-butyl-3-methylimidazolium acetate, 3-6 parts of an addition agent and a proper amount of water. According to the cotton fibers, the taxus chinensis superfine micro-powder is added into raw materials by adopting an ultrasonic technology and a prepared cotton textile has a very good health effect and a useful pain-relieving effect on tumor patients and female symptoms; furthermore, the other active ingredients are added so that the good clothes properties of sweat absorption, breathability, softness, allergy prevention, easiness of washing, low probability of fuzzing and balling up and the like of natural cotton fibers are maintained, and the cotton fibers have good antibacterial and insect-resisting functions, a good electromagnetic radiation shielding function and the like.

The invention relates to a high oil absorption polyurethane foam which comprises the following components in parts by weight: 20 to 40 parts of isocyanate, 35 to 60 parts of polyol, 0.5 to 3 parts of catalyst, 0.5 to 3 parts of foam stabilizer, 5 to 10 parts of foaming agent, 2 to 10 parts of opening agent,5 to 20 parts of flame retardant, 5 to 15 parts of silicon rubber spherical micro powder and 0.5 to 2 parts of coupling agent. The preparation method comprises the following technology steps of weighing, prepolymerization, dispersing, polymerization foaming reaction, curing and peeling at room temperature and cutting. The high oil absorption polyurethane foam can be used for the absorption and recycle of various oil products (crude oil, engine oil, diesel fuel, gasoline, kerosene and the like) on water surfaces, ground or surfaces of other objects, and various oil soluble organic compounds (benzene, methylbenzene, dimethylbenzene, chloroform, nitrobenzene, chlorobenzene and the like). The invention has the advantages of simple technology and low cost, obviously improves the dispersing effect of the silicon rubber spherical micro powder in a polymerization system by using ultrasonic technique, and greatly increase the oil absorption quantity and oil absorption rate of the polyurethane foam by adding the silicon rubber spherical micro powder.

The invention discloses a method for protease-method wool felt-proofing treatment by using an ultrasonic technology, belongs to the application technical filed of wool fabric dyeing and finishing in the wool manufacturing industry and aims at solving the problems that the treating time is long, the felt-proofing rate is high and the fiber damage is large in a single protease method so as to realize the effect of optimizing wool fiber / wool top / wool fabric biological enzyme-method felt-proofing finishing. The felt proofing can be performed on wool under an ultrasonic condition, the protease catalytic hydrolysis speed is increased, the shedding off of a wool scale layer is accelerated, the protease method treating time is shortened, and the degradation of the protease to the inferiors of fibers is reduced. The synergistic effect of ultrasonic waves and the protease can replace a conventional chlorination method or single protease method felt-proofing method, so that the felt-proofing performance of wool fabrics is improved.

The invention provides a method for preparing fresh-keeping instant cooked rice, belongs to the technical field of agricultural product deep processing and food industry, and mainly relates to application of the ultrasonic treatment technique and the enzyme preparation in the instant cooked rice. In the method, the refined rice is used as a raw material, and the ultrasonic treatment technique and the enzyme preparation are utilized to control the aging and fresh-keeping of the instant cooked rice. The preparation method of the instant cooked rice comprises the following steps: the refined rice is washed, soaked in water, water-drained, pre-boiled, and then subjected to enzyme liquid soak and ultrasonic treatment, drainage, enzymolysis, acid soak, water drainage, packaging, sealing and sterilization to obtain the finished production of the fresh-keeping instant cooked rice. The fresh-keeping instant cooked rice prepared by the method has the advantages of low cost, convenient use and convenient eating, and can be eaten instantly or after heated; and if the hot food is needed, the rice bag is heated in boiled water or a microwave oven over medium-high heat for 1 to 2 minutes.

The nanometer functional fabric processing method is mainly to utilize ultrasonic technology in adding nanometer functional material to fabric to prepare nanometer functional fabric. The fabric, which may be pre-humidified, is fed to finishing machine and treated under the action of ultrasonic wave field inside treating bath with nanometer functional material dispersed in water in advance, so that the nanometer functional material is embedded into fine cracks, furrows and holes of fabric and fiber owing to the cavitaion effect and other physical and mechanical effects of ultrasonic wave inside liquid. Through further water washing, mounting, softening and stoving, firm and soft nanometer functional fabric is ultimately prepared.

The invention discloses an ultrasonic assistant hydro-thermal synthesis process for magnetic Fe3O4 nanometer super fine grain. The invention solves the problems of impure products and large grain diameter. The invention has the technical proposal that the form of Fe3O4 crystal nucleus is promoted in the cavitation effect of ultrasonic; cavitation gas bubble is produced in mediums; the pH value of strong ammonia is adjusted to 11 to 13; and the nanometer grain diameter size and the magnetic characteristics are controlled by controlling the hydro-thermal synthesis temperature within range from 140 DEG C to 160 DEG C and within time of 3 to 5 hours, and by changing the micro environment of the air bubble chamber, so as to obtain the dry product which is black magnetic Fe3O4 nanometer powder after being milled. The invention comprises no organic solvent, belonging to full green environmental protection which is a break in the field, and the invention is also the first to use the ultrasonic technology for assistant hydro-thermal synthesis. The invention has the advantages of simple technology, low cost, small powder granularity and even grain diameter. The powder not only can be used as duplicate ink powder, but also can be board used in aspects such as medical, biological technology, magnetic immunocyte separation, DNA separation, nucleic acid hybridization, and preparation for magnetic butt directional medicine carrying micron ball.

The invention discloses a terminal parameter adjusting device and method. The terminal parameter adjusting device at least comprises a first obtaining module, a second obtaining module, a third obtaining module and an adjusting module, wherein the first obtaining module is used for obtaining current user identity information; the second obtaining module is used for obtaining current use scenario information; the third obtaining module is used for obtaining an audio parameter information set corresponding to the user identity information and the use scenario information; and the adjusting module is used for adjusting corresponding audio parameters of a terminal according to the audio parameter information set. According to the device and the method disclosed by the invention, by combining with factors in respect of the current user identity information and the current use scenario information, the audio parameters of the terminal are adjusted automatically, and the audio parameters of the terminal can be adjusted pointedly according to different users and different use scenarios; moreover, the three-dimensional information of earprints of the users can be collected by employing an ultrasonic technology, so that the traditional two-dimensional recognition scheme is broken through and the accuracy of user identity recognition is further improved.

A system for inspecting railroad rail using phased array ultrasonic technology measures the time of flight of ultrasonic signals at locations across the rail head to determine the wear profile of the rail. The rail wear profile is then used to adjust the focal laws of the phased array ultrasonic probes to dynamically compensate for changes in the rail profile as the inspection vehicle moves along the rails.

In a method for automatically selecting a region of interest covering a heated area, in the context of high intensity focused ultrasonic technology during acquisition of magnetic resonance data, phase data of a scanned area are acquired, and a heated area is identified in the scanned area according to the phase data acquired. An image is reconstructed and displayed, and in the displayed image a region of interest covering the heated area is automatically demarcated according to a predetermined size of said region of interest that covers and is larger than the heated area. The method causes the heated area to be automatically and completely included in the region of interest; and eliminates the instability of a manual selection of the region of interest.

The invention relates to the field of fruit processing, and discloses a method for preparing banana juice. The method comprises the following steps of: blanching banana fruits, crushing, securing colors, heating to the temperature of between 85 and 95 DEG C, keeping the temperature for 25 to 50 seconds, cooling quickly, and pulping to obtain banana pulp; adding complex enzyme in amount which is 0.05 to 0.09 percent of the mass of the banana pulp, stirring at the temperature of between 42 and 48 DEG C under the condition of ultrasonic waves and under the condition that the pH value is between 4.5 and 4.8, and adding amylase in amount which is 0.002 to 0.02 percent of the mass of the banana pulp, and stirring at the temperature of between 60 and 80 DEG C; and inactivating the enzyme, centrifugating, extracting supernate, and filtering to obtain filter liquor, namely the banana juice. In the preparation method, the banana pulp is subjected to enzymolysis by utilizing the complex enzyme and the amylase and combining the ultrasonic technology, so that the banana juice of which the content of polypeptides and polysaccharides can be obtained, and the juicing rate of the banana juice is improved simultaneously.

The invention discloses a method for preparing a kind of thermoplastic resin foam by using ultrasonic technology. The method includes following steps: 1) it put the thermoplastic resin samples into the autoclave, then it access to the high-pressure fluid for constant temperature and pressure. 2) it release the high-pressure fluid and take out the samples form the autoclave, then it puts the samples in the liquid medium of ultrasonic environment for foaming. After that it rapidly quenches the foam samples to form the cell structure of stereotypes to achieve the products. In the invention, the method improves the nuclear density of the thermoplastic resin foam and promotes the process of nucleation and gas nuclear growth.

The invention discloses a microcrack ultrasound-sound emission nondestructive detecting device and method, relating to technique that an ultrasound transmitter generates an excitation source and then a sound emission technique is adopted to detect the microcrack damage in a member, that is, the ultrasound transmitter generates the excitation source on the surface of the member, a sound emission acquisition processing system acquires, amplifies, processes and analyzes a signal to obtain a non-linear characteristic parameter of the signal, and then existence of the microcrack damage in the detected member and the damage degree are judged. The device comprises the ultrasound transmitter, a sound emission sensor, a pre-amplifier, and a sound emission acquisition analyzing system. According to the invention, the ultrasonic technology and the sound emission technique are combined to construct a nondestructive detecting system having the functions of detecting static defects and dynamic defects, the microcrack of the member is detected, the member is rapidly integrally evaluated, and the defects that an existing sound emission method cannot detect the static defects and the ultrasound detection method is low in detecting efficiency and has difficulties in capturing the microcrack are overcome.

The invention discloses an extraction method of pawpaw polyphenol. The method comprises the following steps: firstly washing and denucleating pawpaw, cutting into small blocks for standby use, then after mixing the pawpaw small blocks with low congruent melting reagent-water mixed solution, using a stamping machine, preparing into pulp, using a microwave-ultrasonic technology to treat the pulp, filtering to obtain a filter liquor, finally adding salt into the filter liquor, carrying out vortex centrifugal to form an aqueous two phase, after taking the lower phase of the aqueous two phase, adding a certain amount of methyl alcohol therein, carrying out vortex centrifugal, separating a methyl alcohol upper phase, and evaporating a solvent to obtain an extractive rich in pawpaw polyphenol. The pawpaw polyphenol is extracted by adopting the extraction method, the extraction efficiency of the pawpaw polyphenol can be obviously improved, the extraction time is saved, the using of an organic solvent can be reduced furthermore, and the extraction method is more environment-friendly. Moreover, the polyphenol extractive obtained in the invention can be directly applied to the products such as toothpastes, facial cleansers, shampoo, liquid makeup and hand cream without subsequent purification, and the used product has efficient oxidation resistance.

An ultrasonic flowmeter for measuring fluid flow are disclosed. The invention combines isolating conditioner technology with ultrasonic technology to determine flow velocity. The method and apparatus of the invention does not require the use of integration techniques or the prior determination of flow swirl or asymmetry to achieve accuracy. The performance of this novel flowmeter exceeds the performance of current ultrasonic flowmeters by an order of four to twelve times and offers significant savings in manufacturing and maintenance costs. The disclosed flowmeter also has self-diagnostic capabilities.

The invention discloses an air purification device adopting cooperation of plasma, an ultrasonic technology and catalysis. The air purification device is characterized by comprising a channel selection unit A (1), wherein an air outlet of the channel selection unit A (1) is connected with an air inlet of a discharge purification unit (2), an air outlet of the discharge purification unit (2) is connected with an air inlet of a photocatalytic processing unit (3), an air outlet of the photocatalytic processing unit (3) is connected with an air inlet of an ozone catalyst bed (4), an air outlet of the ozone catalyst bed (4) is connected with an air inlet of a flow adjusting unit (5), and an air outlet of the flow adjusting unit (5) is connected with an air inlet of an air quality detection unit (6). The air purification device adopting cooperation of the plasma, the ultrasonic technology and the catalysis uses the plasma, the ultrasonic technology and the catalysis technology to purify air and can purify poisonous gas and solid particles in the air quickly and efficiently and realize sterilization.

The invention relates to a method for preparing an antioxidant peptide through ultrasonic-microwave synergetic enzymatic hydrolysis. The method comprises the following steps: (1), preparing an enzymatic hydrolysis substrate; (2), adding an alkali protease for enzymatic hydrolysis; (3), carrying out ultrasonic-microwave assistant enzymatic hydrolysis; and (4), after enzyme inactivation, centrifuging and separating a reaction solution, taking supernatant, freezing and drying to obtain antioxidant peptide powder. The method has the advantages that the ultrasonic technology, the microwave technology and the enzymology biology technology are combined. Compared with the peptide prepared by the conventional method, no chemical reaction is carried out, the change rate of bioactive substances is reduced, the utilization rate of organic solvents is reduced, the enzymatic hydrolysis time is shortened after the ultrasonic-microwave assistant enzymatic hydrolysis is carried out, and a test proves that the antioxidant capacity of the salmon peptide is remarkably enhanced. The method is simple in process, can be used for industrial production and has higher economic and social benefits.

The invention discloses a membrane separation concentrated water treatment method and an integral coupling device, which belong to the technical field of sewage treatment. The membrane separation concentrated water treatment method comprises the following steps that: membrane separation concentrated water is pre-treated and then enters a suspension-type photocatalytic reactor, has photocatalytic reaction under the UV radiation, and simultaneously, improves the degradation rate and the degradation effect of pollutant through the cooperation of photocatalytic and ultrasonic effect; the wastewater after photocatalytic oxidation and ultrasonic degradation enters a submerged ultrafiltration system to be filtered and then is divided into filtered water and the concentrated water; the filtered water after the filtration of the submerged ultrafiltration system enters a water production tank, and the concentrated water and photocatalytic reaction agent flow back into a photocatalytic reaction tank, wherein the photocatalytic reaction agent is recyclable, and the pollutant which is not degraded in the concentrated water is further degraded; and the integral coupling device which supports the process integrates a photocatalytic oxidation technology with an ultrasonic technology and a membrane separation technology, has the advantages of high separation efficiency, low cost, energy saving, environment protection and the like.

The invention discloses a method and a device for measuring accumulated liquid of a natural gas pipeline. The method comprises the following steps of: vertically transmitting high-frequency ultrasonic wave into the pipeline by an ultrasonic probe coupled to the outer wall of the measured pipeline, wherein the energy of reflection echo has great difference due to different properties of gas and liquid media; judging that the pipe inner wall is contacted with gas or liquid at the position of the probe according to the characteristic of echo received by the ultrasonic probe and reflected by the pipe inner wall; gradually adjusting the measurement position of the ultrasonic probe on the pipe outer wall along the circumferential direction; and recording a circumferential angle of the ultrasonic probe by a circumferential angle ruler when the echo has mutation, and further calculating the height of the accumulated liquid. The method is a non-intrusive accumulated liquid measurement method, does not change the structure of the conventional pipeline, has no medium leakage risk, does not affect the operation such as cleaning the pipeline and the like, meanwhile is not affected by the composition of gas and liquid phase media in the pipeline and parameters such as temperature, pressure and the like, overcomes the defect that the conventional ultrasonic technology needs complex sound velocity correction, and is particularly suitable for measuring the accumulated liquid inside the pipeline for conveying corrosive and toxic media.

The invention is concerned with active carbon rebirth technology to desorption and activation with large power industry ultrasonic technology after active carbon is saturation for disposing the sewage with organic matters and heavy metal ion with filtration. The ultrasonic generator sends out high frequency surging signal and the transducer changes the high frequency sound wave to spread in medium and produce exquisite machine surge. Ultrasonic travels in cleaning medium to drive the liquid to produce lots of tiny air bubbles, those air bubbles shake intensively with the action of sound field. When the press of sound reaches to a certain value, the bubbles rise quickly and close suddenly and the close produces shock wave and thousands of atmospheric pressure to force the water-fast feculence to escape from the carbon hole to disperse in the solution. It will clean the tiny space and surface of active carbon to realize the rebirth process. It has low rebirth cost without another pollution and the renewed active carbon has better adsorption efficiency, likely 95 to 130 percent of new carbon, and the wastage is less than 0.3 percent each time. This active carbon has long work time for circulation using with low cost and wide application range.

The invention relates to a nano-carbon black preparation method and an application of nano-carbon black in fabric dyeing, belonging to the technical field of textile chemical engineering. The preparation method is characterized in that an ultrasonic technique is utilized to prepare the nano-carbon black, so as to obtain a nano-carbon black pigment dispersion system with good dispersivity and high stability; the prepared nano-carbon black pigment dispersion system can be used for dyeing natural cellulose fiber and regenerated cellulose fiber fabrics; and the dyed fabrics are pure in color, good in jet-black degree and excellent in color fastness. The preparation method has the advantages of simple process, low cost and little pollution.

The invention provides a preparation method for a degummed kenaf fiber. According to the method, vacuum technology, an enzyme system and ultrasonic technology are combined together for degumming of kenaf bast fibers. The method comprises the following steps: carrying out degumming on a kenaf fiber by using a mixed enzyme system, allowing enzyme liquid to fully penetrate into the fiber by using vacuum negative pressure technology and allowing gum macro-molecule insoluble in water to fracture and a part of lignin to be decomposed at the same time; and removing gum strongly bonding with the fiber by using low-frequency ultrasonic waves and finally, removing residual gum in tiny parts like micropores and slits by using high-frequency ultrasonic waves. The method overcomes the problems of a great amount of residual gum, rough fiber surface and the like in conventional degumming with a single biological enzyme, improves the quality of the degummed kenaf fiber and reduces the usage amount of the enzyme and chemicals.

The invention relates to a ultrasonic oxidization sewage treatment process which is aimed at solving the problem of unsatisfactory treatment effects to COD, BOD, SS, N, P, chromaticity and various hard-degradable organics in the conventional sewage treatment methods, the process according to the invention comprises the steps of, (1) water pretreatment, (2) subjecting the pretreated water to ultrasonic treatment, (3) subjecting the treated water to post-treatment, high-grade oxidation treatment can be added to each or any one of the steps.

The present invention relates to a catalyst for synthesizing propylene carbonate. Said invention uses single active center organic quaternary ammonium hydroxide as active component, uses MCM-41 as carrier, uses chloropropyl trimethoxysilane as coupling agent and uses cyclohexane as solvent, and adopts ultrasonic technique to make the quaternary ammonium hydroxide be simply and moderately be grafted on the carrier MCM-41, its grafting quantity is 0.5-1.5 mmol / g, so as to obtain the invented catalyst.

A method for ultrasonically inspecting components with wavy or uneven surfaces. A multi-element array ultrasonic transducer is operated with a substantial fluid layer, such as water, between the array transducer and the component surface. This fluid layer may be maintained by immersing the component in liquid or by using a captive couplant column between the probe and the component surface. The component is scanned, measuring the two dimensional surface profile using either a mechanical stylus, laser, or ultrasonic technique. Once an accurate surface profile of the component's surface has been obtained, data processing parameters are calculated for processing the ultrasonic signals reflected from the interior of the component that eliminate beam distortion effects and reflector mis-location that would otherwise occur due to the uneven surfaces.

The invention relates to a preparation method for a high-gradient porous metal film. The preparation method is characterized by comprising the steps of firstly, carrying out hole blocking treatment on a porous metal matrix by using prepared inorganic powder; then, carrying out metal powder coating; carrying out high temperature sintering under a hydrogen or inert atmosphere to obtain an impurity-containing gradient porous metal film; finally, flushing (carrying out vacuum soaking on) residual impurities in a film matrix by using a chemical reagent or removing the residual impurities in the film matrix by using an ultrasonic technology to obtain the high-gradient porous metal film. According to the high-gradient porous metal film prepared by the preparation method, the powder coating quality is good, the operation is simple and convenient, the residual impurities in a matrix pore passage is easy to be completely removed, and the obtained metal film is good in integrality, high in gradient and low in mass transfer resistance.

Described is a method for instilling the haptic dimension of texture to virtual and holographic objects using mid-air ultrasonic technology. A set of features is extracted from imported images using their associated displacement maps. Textural qualities such as the micro and macro roughness are then computed and fed to a haptic mapping function together with information about the dynamic motion of the user's hands during holographic touch. Mid-air haptic textures are then synthesized and projected onto the user's bare hands. Further, mid-air haptic technology enables tactile exploration of virtual objects in digital environments. When a user's prior and current expectations and rendered tactile texture differ, user immersion can break. A study aims at mitigating this by integrating user expectations into the rendering algorithm of mid-air haptic textures and establishes a relationship between visual and mid-air haptic roughness.