31results about How to "Cause physical damage" patented technology

The invention provides a fruit ripeness ultrasonic non-destructive detection method and system based on a comparison method. The method comprises the following steps of: conducting training and learning on fruit, dividing grades for fruit ripeness through training and learning results, and establishing fruit ripeness models and optimum measurement frequency of target fruit; really measuring the target fruit, and acquiring two characteristic values of the target fruit, i.e. attenuation ratio and transmission speed; and comparing the target fruit with the fruit models obtained from training and learning to obtain ripeness degree. The system comprises a fruit detection module, an acoustic range measurement module, an information processing module and a control and display module, wherein the control and display module is connected with the information processing module and the acoustic range measurement module, the information processing module is connected with the fruit detection module, and meanwhile, the fruit detection module is connected with the acoustic range measurement module. The method and the system, which are provided by the invention, can realize non-destructive detection, do not require manual judgment and have the advantages of being simple to realize, easy to operate and wide in application range.

The invention discloses a fault injection testing system and a fault injection testing method applied to embedded equipment. A bus interface of an embedded system to be tested and the flexibility of a programmable logic device in the embedded system to be tested are used for realizing fault injection without changes in the hardware state of the embedded system to be tested and physical damage to the system to be tested, and high reliability is ensured; distance limits to fault injection test are eliminated, and the fault injection test can be implemented within a reliable transmission distance of a bus, so that the system and the method are flexibly and conveniently used; the fault injection testing system is used for testing the hardware and the software of the system to be tested in a hardware and software combination way to effectively realize fault injection in real time, and the fault-tolerance performance of the embedded system can be objectively evaluated through fault recovery system running information to further provide important bases for improving the error correcting and fault-tolerant capability of hardware designs and the software by embedded system designers to finally realize a high-reliability and high-security embedded system running environment.

The invention provides an underwater spherical motor propeller. A stator core is in a spherical shape, the surface of the spherical stator core is provided with three grooves which are perpendicular to one another along a big circle, three-phase concentrated windings are placed in the grooves respectively and are pairwise perpendicular, the coils of the three-phase windings are connected to an underwater sealing plug by cables, a spherical sealed shell which is fixed with the stator core wraps the stator core, a spherical shell-shaped outer rotor is sleeved on the sealed shell through rubber bearings, the surface of the rubber bearings are provided with flumes, a rotor core is arranged between two rubber bearings, a slim clearance is reserved between the rotor core and the sealed shell, the rotor core, the rubber bearings and a rotor shell are combined together, and propeller blades are fixed on the rotor shell directly. In the invention, the vectored propulsion of the underwater spherical motor propeller is realized, the performance of the propeller is improved and the mechanical structure of the underwater working device is simplified, the mass and the volume of the underwater working device are reduced; therefore, the underwater working device has better utility and higher reliability.

The invention discloses a vehicular internal combustion engine fuel-borne catalyst and application thereof. The vehicular internal combustion engine fuel-borne catalyst comprises, by mass percent, 65-80% of tourmaline, 3-8% of aluminum oxide, 15-30% of iron oxide and 1-3% of dicerium trioxide. The vehicular internal combustion engine fuel-borne catalyst has the advantages of safety, reliability, simplicity in application, no physicochemical damage to an engine, no influence on a vehicular structure, a circuit, an oil circuit and mechanical properties, capability of achieving remarkable energy-saving and emission-reducing effects, lower vehicular maintenance cost, higher power, low use cost and long service life and can be applied to various diesel vehicles, gasoline vehicles, LPG (liquefied petroleum gas) vehicles and the like.

The invention discloses a method for transferring graphene on a hard substrate with a PDMS transition layer. The method comprises the following steps that PDMS glue coats an original substrate coated with graphene; the PDMS glue is solidified to form the PDMS transition layer; plasma treatment is carried out on the PDMS transition layer and the hard substrate, and then the PDMS transition layer and the hard substrate are pressed lightly and bonded; the bonded hard substrate is put into corrosive liquid to etch off the original substrate; a graphene / PDMS transition layer / hard substrate combined body is rinsed repeatedly by using deionized water and is blown dried, and the graphene transferred on the hard substrate with the PDMS layer is obtained. The method is simple in operation, low in cost and wide in application range, the graphene material is not prone to damage in the transferring process, the graphene can be efficiently and stably transferred on the hard substrate with the PDMS transition layer, and the method and a semiconductor technology can be combined to be used for preparing graphene electronic devices.

The invention provides a method for improving the copper precipitating and copper plating quality of a PCB. The method comprises the steps of removing a loose copper layer deposited on a bearing part before a PCB to be copper-precipitated is loaded by use of the PCB bearing part for at least one time and removing the corrosion of the loose copper layer by use of a cleaning liquid. According to the method for improving the copper precipitating and copper plating quality of the PCB, the major source of shot copper or copper scraps causing the PCB to generate a copper precipitating quality problem is removed, the copper precipitating liquid medicine in a copper precipitating liquid medicine vat is maintained clean, when a copper precipitating process is carried out, the problem of too little precipitated copper or directly no copper in through holes, caused by affected normal flowing and exchange of the liquid medicine due to attachment of the shot copper or the copper scraps to the inner walls of the through holes is eliminated, the shot copper does not fall into the through holes of the PCB, the problem that the through holes are blocked by too much plated copper is prevented, and the product quality is improved.

The invention discloses a sewage blockage spiral flow cleaning device and method. The sewage blockage spiral flow cleaning device comprises a water collecting tank, a high-pressure injection pump, a flexible water inlet pipe, a hard water inlet pipe, a locating block and a spiral flow water outlet nozzle. A water inlet of the high-pressure injection pump is connected to the interior of the water collecting tank. The two ends of the flexible water inlet pipe are connected with a water outlet of the high-pressure injection pump and one end of the hard water inlet pipe. The hard water inlet pipestretches into a pipeline to be cleaned, and the end of the hard water inlet pipe is connected with the spiral flow water outlet nozzle through the locating block. A rubber locking opening is formed in the end opening of the pipeline to be cleaned, and the hard water inlet pipe passes through the rubber locking opening and stretches into the pipeline to be cleaned. The sewage blockage spiral flowcleaning device and method save energy, protect the environment, is convenient to control and easy to operate, and get rid of the limitation of conventional sewage cleaning methods such as a caustic soda dredging method and a disassembly cleaning method, the high-speed high-pressure spiral flow is formed by a novel flow forming device in the sewage pipeline which is blocked, and therefore the blockage condition of the sewage pipeline can be solved.

The invention discloses a polarized laser-acupuncture and moxibustion needle, which is composed of a shell, an inner cylinder, a cylinder-lens component and a suction cup. The cylinder-lens component is driven by rotating the shell to move up and down in order to change the space of the convex-concave lens, so that the incidence depth of focus can be controlled. At the same time, a phase-modulation component of the cylinder-lens component, by carrying out intensity modelation and a plurality of polarization modulation to the laser emitted by collimator, combining the position where the suction cup is fixed has the polarized laser irradiated into the acupuncture point of the human body. The polarized laser has the advantages of small scattering loss and strong penetration ability. Meanwhile, as the skin is not contacted by the laser needle, no physical damage can be caused to the skin tissue. In addition, as only the suction cup contacts with the skin directly, the cleaning and sterilization become easy, so that the cross infection can be avoided and the needle can be used repeatedly. Thereby, the invention is a safe medical device with highly curative effect.

The invention provides a chewing gum with a dental caries controlling function, and a preparation method thereof. The invention relates to the field of chewing gum. The chewing gum is prepared from the raw materials of, by weight, 15-60% of gum base, 12-45% of xylitol, 1-15% of Arabic gum, 5-10% of calcium lactate, 1-10% of bio-active glass micro-beads, 0.05-3% of edible flavor, 0.05-2% of lecithin, and 0.05-1% of citric acid. According to the invention, the bio-active glass micro-beads are added into the chewing gum composition as an abrasive. When the added abrasive covers a dental caries part under a human oral physiological environment, chemical bonding occurs, and the teeth are not damaged.

The invention provides a method for manufacturing silicon wafer markers. The method for manufacturing the silicon wafer markers includes multiple steps, wherein according to the step 10, chemical corrosion is conducted on silicon wafers to form the markers. By the adoption of the mode utilizing corrosion to manufacture the markers, physical damage to the silicon wafers is avoided in the corrosion process, and the probability that the silicon wafers are damaged in the follow-up machining process is reduced.

The present invention provides a method for preparing a resistive gas electron multiplier film which can form a resistive gas electron multiplier film including a first diamond-like carbon layer, a polyimide-based film and a second diamond-like carbon layer stacked in this order and having a through-hole array. The method includes forming a through hole using a combination of a protective layer, asandblasting treatment, and wet etching. The resistive gas electron multiplier film containing diamond-like carbon layer formed by the method of the invention has few defects and stable performance.The invention also provides a gas electron multiplier film and a gas electron multiplier.

The invention provides a using method of a measuring needle for measuring the angle of a small micropore of a blade. The measuring needle comprises an insertion part and an extension part, and the method comprises the following steps: step A, providing a device for assembling the measuring needle, and enabling a film hole of a blade to face upwards; step B, enabling the end of the insertion part to be in contact with a port of the film hole, starting an air extractor, and forming negative pressure in the inner cavity of the aero-engine blade, so that the insertion part is sucked into the air film hole until the extension part is in contact with the port of the air film hole, and the assembly of the measuring needle is completed. According to the using method of the measuring needle for measuring the angle of the small micropore of the blade, the specially-made measuring needle can be assembled into the air film hole of the blade, so that real angle data of the air film hole can be obtained through optical measurement.

The present invention discloses a humic acid urea and a preparation process thereof, wherein 1000 kg of the fertilizer comprise 420 kg of urea, 230 kg of lignite, 170 kg of bentonite, and 130 kg of fluorite powder. According to the present invention, the humic acid urea has advantages of soil physical and chemical property improving, soil pH value adjustment, soil microorganism activity promoting, soil enzyme activity increase, soil loosening, soil water, fertilizer, gas and heat condition adjustment, plant root development promoting, soil organic and inorganic fertilizer conversion rate enhancing, plant chlorophyll increase, plant photosynthesis improving, crop resistance improving, prevention of soil hardening, sandification and environment pollution caused by application of excess inorganic fertilizer on soil, plant physiological disease prevention, crop yield improving, crop quality improving, and the like.

The invention relates to an integrated circuit component assembly type array direct connector. The integrated circuit component assembled type array direct connector is composed of an upper connectingsection, a lower connecting section and a fixing plate; a pin plugging tube and an external threaded connecting end are combined into an integrated body so as to form the upper connecting section; the upper connecting section can be made into an I-shaped structure and an L-shaped structure according to the direction of the pin plugging tube and are respectively corresponding to surface-mounted type package and dual inline-pin package; an internal threaded connecting end and a test plugging pin are combined into an integrated body so as to form the lower connecting section; arrayed through holes are distributed in the fixing plate; and the upper connecting section and the lower connecting section are screwed into one through hole of the fixing plate and are in threaded connection with eachother, so that the upper connecting section, the lower connecting section and the fixing plat can be assembled into a verification unit. According to the integrated circuit component assembly type array direct connector of the invention, a rotary telescopic assembly type structure is adopted, so that the integrated circuit component assembly type array direct connector has flexibility and universality, and satisfies the board-level interconnection matching of most types of package products of semiconductor integrated circuits; plug-in type interconnection is adopted, and electrical connectioncan be realized with no welding required; and a plurality of rows of through holes are formed in the interconnector, so that the construction of peripheral components of a test board circuit can be facilitated, and the performance indicators of a test device can be accurately reflected. The direct connector is suitable for the verification of various types of semiconductor integrated circuit devices.

The invention discloses a continuous oil pipe traction device. The continuous oil pipe traction device comprises a steel wire rope connected with a continuous oil pipe; an inner taper sleeve is arranged in the continuous oil pipe; an outer taper sleeve is arranged between the inner taper sleeve and the inner wall of the continuous oil pipe; the end of the inner taper sleeve is provided with a threaded rod; a nut is arranged on the threaded rod; the nut can compact the inner taper sleeve and the inner taper sleeve; the threaded rod is connected with the steel wire rope detachably; the inner taper sleeve can be utilized for pushing the outer wall of the outer taper sleeve to connect the inner wall of the continuous oil pipe closely by matching the inner taper sleeve and the outer tapper sleeve; by matching the threaded rod and the nut on the inner taper sleeve and the outer taper sleeve, the combination degree of the inner taper sleeve and the outer taper sleeve can be adjusted; and the tightness degree of the outer taper sleeve and the continuous oil pipe can be adjusted according to the tension strength, so that the traction device is connected with the continuous oil pipe closely, simultaneously the continuous oil pipe cannot be damaged physically.

A blade micropore angle measuring method comprises the following steps: step A, preparing a measuring needle according to the diameter of a film hole, step B, enabling the end of an insertion part of the measuring needle prepared in the step A to be in contact with a port of the film hole, forming negative pressure in an inner cavity of an aero-engine blade, so that the insertion part is sucked into the air film hole until the extension part is in contact with the port of the air film hole, and the installation of the measuring needle is completed; step C, using an optical measurement mode to complete angle measurement of the gas film hole, and after measurement data is obtained, taking out the measurement needle along the axis direction of the measurement needle so as to complete angle measurement of the gas film hole. According to the method, the angle of the air film hole of the blade can be directly measured, real air film hole angle data can be obtained, and physical damage to the blade cannot be caused in the measuring process.

The present invention provides a method for preparing a resistive gas electron multiplier film which can form a resistive gas electron multiplier film including a first diamond-like carbon layer, a polyimide-based film and a second diamond-like carbon layer stacked in this order and having a through-hole array. The method includes forming a through hole using a combination of a protective layer, asandblasting treatment, and wet etching. The resistive gas electron multiplier film containing diamond-like carbon layer formed by the method of the invention has few defects and stable performance.The invention also provides a gas electron multiplier film and a gas electron multiplier.

The invention relates to a device for grinding brake block friction material, which comprises a first grinding part (34) which includes a supply part (30) for supplying brake block margin material, a rough grinding part (32) for grinding the surface of the friction material (3); a second grinding part (42) which includes a slot handling part (36) for forming slot (5 or 5') in the center of the friction material (3), a declining surface handling part (38) for forming declining surfaces (4) on the two sides of the friction material (3), and fine grinding part (3); a third grinding part (50) which comprises a cover part (44) for coating on the surface of the supporting board, a second fine grinding part (48) for handing the coated friction material.

The invention discloses a clearing system and a clearing method based on microwave ionization for surface contamination of a dielectric film layer. The clearing system comprises a sample bin; a microwave source, a vacuum mechanism, a gas flow control system, an oxygen gas source and an inert gas source are arranged on the outer part of the sample bin; the oxygen gas source and the inert gas source are connected with the gas flow control system; and the microwave source, the vacuum mechanism and the gas flow control system communicate with the inner part of the sample bin. According to the system and the method disclosed by the invention, fingerprint contamination on the surface of the dielectric film layer of an optical element is effectively cleaned in a non-contact mode; and meanwhile, the film layer is not damaged, so that performances of the optical element are kept to meet requirements, and therefore, residues are avoided, and secondary pollution is also not caused.

The invention provides a method for improving the copper precipitating and copper plating quality of a PCB. The method comprises the steps of removing a loose copper layer deposited on a bearing part before a PCB to be copper-precipitated is loaded by use of the PCB bearing part for at least one time and removing the corrosion of the loose copper layer by use of a cleaning liquid. According to the method for improving the copper precipitating and copper plating quality of the PCB, the major source of shot copper or copper scraps causing the PCB to generate a copper precipitating quality problem is removed, the copper precipitating liquid medicine in a copper precipitating liquid medicine vat is maintained clean, when a copper precipitating process is carried out, the problem of too little precipitated copper or directly no copper in through holes, caused by affected normal flowing and exchange of the liquid medicine due to attachment of the shot copper or the copper scraps to the inner walls of the through holes is eliminated, the shot copper does not fall into the through holes of the PCB, the problem that the through holes are blocked by too much plated copper is prevented, and the product quality is improved.

The invention discloses a humic acid urea and a preparation technology thereof. The humic acid urea (1000 kilograms) comprises 420 kilograms of urea, 230 kilograms of brown coal, 170 kilograms of bentonite, and 130 kilograms of fluorspar powder. The humic acid urea can improve the physical and chemical properties of soil, adjust the pH value of soil, increase the activity of enzymes in the soil, loosen the soil, adjust the water, fertilizer, gas, and heat situations of soil, promote the growth of plant roots, enhance the conversion rate of inorganic fertilizers and organic fertilizers in the soil, increase the plant chlorophyll, strengthen the photosynthesis of plants, and improve the resistance of crops. Moreover, the soil hardening, desertification, and environmental pollution caused by excess inorganic fertilizers are prevented, the plant diseases are prevented, and the output and quality of crops are both increased.

The invention discloses humic acid urea and a preparation process thereof. The fertilizer comprises the following components by weight of 1000 kg: 420 kg of urea, 230 kg of lignite, 170 kg of bentonite and 130 kg of fluorspar powder. The humic acid urea has the advantages that physical and chemical properties of soil are improved, soil acidity and alkalinity is regulated, activity of soil microorganisms is promoted, activity of soil enzyme is improved to enable the soil to be loose, conditions of water, fertilizers, gas and thermal of the soil are regulated, development of root systems of plants is promoted, the speed of conversion of organic fertilizers into inorganic fertilizers in the soil is increased, plant chlorophyll is improved, plant photosynthesis is improved, resistance of cropscan be improved, soil caking, desertification and environment pollution due to application of inorganic chemical fertilizers in soil are prevented, physiological diseases of plants can further be prevented, the yield and quality of crops are improved and the like.

The invention discloses a polarized laser-acupuncture and moxibustion needle, which is composed of a shell, an inner cylinder, a cylinder-lens component and a suction cup. The cylinder-lens component is driven by rotating the shell to move up and down in order to change the space of the convex-concave lens, so that the incidence depth of focus can be controlled. At the same time, a phase-modulation component of the cylinder-lens component, by carrying out intensity modelation and a plurality of polarization modulation to the laser emitted by collimator, combining the position where the suction cup is fixed has the polarized laser irradiated into the acupuncture point of the human body. The polarized laser has the advantages of small scattering loss and strong penetration ability. Meanwhile, as the skin is not contacted by the laser needle, no physical damage can be caused to the skin tissue. In addition, as only the suction cup contacts with the skin directly, the cleaning and sterilization become easy, so that the cross infection can be avoided and the needle can be used repeatedly. Thereby, the invention is a safe medical device with highly curative effect.

The invention relates to agricultural fertilizers, and especially relates to humic acid urea. The humic acid urea is characterized by being composed of the following raw materials in percent by weight: 35-45% of urea, 25-35% of humic acid, 8-10% of bentonite, and 10-32% of fluorspar powder. Urea has the nitrogen fertilizer content of 46% or more, humic acid is weathered coal which possesses the organics content of 60% or more and humic acid content of 45% or more and is sieved by an 80-120 mesh sieve. Humic acid is capable of inhibiting action of urease, alleviating decomposition of urea and prolonging urea fertilizer efficiency. The humic acid urea has slow-release and long-term release effects in farmland, helps to improve urea utilization rate, gives play to effects of improving product quality, improving soil physical and chemical properties, adjusting soil acid-base value, promoting action of soil microbes, increasing activity of soil enzyme, loosening soil, adjusting water, fertilizer, gas and thermal statuses of soil, promoting plant root growth, enhancing conversion speed of organic inorganic fertilizers in soil, increasing plant chlorophyll, improving plant photosynthesis, improving plant resistance, and preventing soil hardening and desertification and environment pollution caused by excessive application of inorganic fertilizers to soil, and also has the advantages of preventing plant physiological diseases and the like.

The invention discloses a method for rapidly and nondestructively detecting the moisture content and the drying degree of green tea in the drying process based on a low-field nuclear magnetic resonance technology, and belongs to the technical field of chemical analysis. The method comprises the following steps: establishing a model equation of a low-field nuclear magnetic T2 relaxation spectrum total signal amplitude and tea sample moisture content: y = 8E-05x-0.0143 and a fitting degree R2 = 0.967, when detecting the moisture content of a tea sample to be detected in the drying process, firstly performing low-field nuclear magnetic resonance analysis on the tea sample to be detected and performing normalization processing to obtain the low-field nuclear magnetic T2 relaxation spectrum total signal amplitude, and substituting the low-field nuclear magnetic T2 relaxation spectrum total signal amplitude into the model equation, so that the moisture content of the tea sample to be detected is obtained. According to the method, the low-field nuclear magnetic resonance analysis technology is applied to the green tea drying process, non-destructiveness and non-invasiveness are achieved,physical damage and chemical pollution cannot be caused to a sample, and important technical support is provided for online detection and quality control of the moisture state of the tea in-process products.