818results about How to "Non-destructive" patented technology

The invention discloses a restoration agent for lowering cadmium / lead effective state content in soil, which is composed of quicklime, calcium sulfate, wood charcoal, iron chloride and water, wherein the weight ratio of the quicklime, calcium sulfate, wood charcoal and iron chloride is (1-2):(1-2):(1-2):(0.5-1), and the water accounts for 30-45 wt% of the soil. The restoration agent can be used for treating heavily polluted soil; and common chemical passivators can only restore lightly polluted soil, and do not have obvious effect on heavy pollution. The restoration agent can be used for treating both acidic soil and neutral soil. The restoration agent has high remediation efficiency for cadmium polluted soil; the reaction mechanisms relate to chemical precipitation and physical adsorption; and when one action fails due to change of the outside conditions, the other action can perform the guarantee function. The restoration agent has certain control actions on the lead effective state content in the polluted soil.

The invention discloses an adsorption method for preparing hydroxyapatite pesticide and slow-release fertilizer compound, which comprises the following steps: soaking a nano hydroxyapatite carrier in phosphate buffer solution, then adding a starting material into the buffer solution and continuously stirring the mixture to form compound solution, finally centrifuging the compound solution to obtain sediment, and drying the sediment to obtain the compound. By using a porous structure of the nano hydroxyapatite self to embed medicaments into an internal grid of the carrier, the burst effect of the medicaments is avoided, the medicinal effect is long, the medicament residue is greatly reduced, and the medicaments are safer. A product obtained by using the nano hydroxyapatite as a pesticide and fertilizer carrier has the advantages of reliable quality, strong stability, safe use and low cost, greatly improves the medicament loading amount and adsorption amount, is easy for continuous production, and has good application prospect.

The invention discloses a spectral image-based meat quality visual non-contact detection method. By means of spatial distribution information and spectral characteristic information which are contained in a spectral image and reflect the characteristics of an object to be detected, multiple indexes of meat quality (such as water content, water activity, volatile basic nitrogen, meat color, microorganism counts, acid value and pH value) are respectively or comprehensively evaluated, and evaluation results are given in an image mode according to spatial distribution conditions of specific indexes in the object to be detected. The method can be used for quick and non-contact inspection of meat production, processing, storage, transportation and marketing links, inspection results are accurate and objective, and the expression mode is intuitive, so that a guarantee means for supervising the production and marketing quality safety of meat is provided.

The present invention provides the in-situ detection of product quality index in Chinese medicine production process and relates to one Chinese medicine producing shop, where relevant technological parameters and quality indexex are in-situ detected directly. The shop is equipped with in-situ detection system, which needs no any sample from the technological process. The system is equipped with one near infrared spectrometer and one industrial control comdputer and its in-situ real-time analysis system adopting least-square method and neural network method can be used in predicting the quality indexes in the production and providing analysis data. The method may be used in different Chinese medicine production shops.

The invention relates to a composite material and a preparation method thereof, which belong to the field of aluminum alloys. The invention provides the composite material against the defects of unevenness, no metal luster, easy scratch and easy abrasion of a gradient color film layer on the surface of the aluminum alloy, the composite material comprises a substrate, a porous anodic oxide film layer is arranged on the surface of the substrate, the substrate is aluminum or the aluminum alloy, at least one dye is filled in pores of the porous anodic oxide film layer, and the content of the same dye in part of the pores of the porous anodic oxide film layer is in gradient distribution. The preparation method of the composite material comprises the following steps: using the anodic oxidation method for forming the porous oxide film layer on the surface of the aluminum alloy; and dyeing the porous oxide film layer, wherein the dyeing method is to control the time of entering into the dye of different regions of the porous oxide film layer and further lead the content of the dye filled in the pores of the porous anodic oxide film layer to be in the gradient distribution. The composite material has the advantages of evenness, metal luster, difficult scratch and difficult abrasion of the film layer and is mainly applied on electronic products.

A method for analysing a chemical substance containing quadrupolar nuclei to determine a measurable characteristic of the substance. The method includes irradiating the substance with RF energy in a prescribed manner to stimulate NQR of certain quadrupolar nuclei within the substance. Then receiving and processing a signal emitted from the substance to isolate an NQR signal therefrom. Thereafter analysing the NQR signal to obtain a measure of the characteristic of the substance; and providing an output indicative of the measure for analytical purposes. Specific methods for analysing a chemical substance during production thereof to determine a characteristic of the substance indicative of the quality thereof, and for searching for chemicals together with specific systems are also described.

The invention discloses a method for measuring the thermal resistance of a multi-layer heat-conducting material, which relates to the field of testing, and can be used for measuring the thermal resistance of each material layer in the multi-layer heat-conducting material. A semiconductor device in a testing system has a heat source function and a testing function. The method comprises the following steps of: fixing the semiconductor device on the upper surface of the multi-layer heat-conducting material, and fixing the lower surface of the multi-layer heat-conducting material on a constant temperature platform; and applying operating current to the semiconductor device for a period of time at any moment, removing the operating current after a steady state is achieved, and measuring a change curve of the junction temperature of the semiconductor device along with the time under the testing current. Because the thermal resistance, thermal capacity and heat transfer rate of each material layer in the multi-layer heat-conducting material are different, the thermal resistance and thermal capacity of each heat-conducting material layer are reflected through the measured change curve of the junction temperature of the semiconductor device along with the time; and according to a structure function method, the thermal resistance composition in each material layer in the multi-layer heat-conducting material is calculated. Moreover, the method belongs to non-destructive testing.

A network fragility analyzing system based on privilege lift in the technical field of network safety is used to analyze the potential safety hazard of network systems from the prospective of whole integrity, and comprises a hole checking module, an attack information knowledge base, a network attack picture generating module and an attack picture visualization module, wherein the hole checking module is connected with the network attack picture generating module and is used to transfer hole information, network communication information and host machine information, the attack information knowledge base is connected with the network attack picture generating module and is used to transfer hole utilization information, and the network attack picture generating module is connected with the attack picture visualization module and is used to transfer the network attack pictures of the whole information system. The system helps managers to recognize the influence of hole combination on system safety and to realize the safety condition of the whole system.

The invention discloses a melon and fruit picking device and a picking method thereof, which relate to the technical field of agricultural equipment. The melon and fruit picking device comprises a clamping device, a cutting device and a control device, wherein the clamping device comprises a step motor, a driven gear, a left support swinging rod, a left finger, a driving gear, a right support swinging rod, a right finger and supporting blocks, the supporting blocks are arranged under the left finger and the right finger, the driving gear and the step motor are connected, the driving gear and the driven gear are connected through a gear pair, the left finger is arranged at the end parts of the left support swinging rod and the driven gear, the right finger is arranged at the end parts of the right support swinging rod and the driving gear, the cutting device comprises a cutter, a swinging air cylinder and an electromagnetic reversing valve, the cutter is arranged on an output shaft of the swinging air cylinder, the electromagnetic reversing valve is arranged on the swinging air cylinder, the swinging air cylinder is arranged on a cutter frame, and the cutter frame is arranged on a back seat vertically and fixedly arranged on a base. The melon and fruit picking device and the method can be used for automatically picking melons and fruits, and a large amount of time and labor canbe saved for laborers.

The invention discloses a load simulator based on a series-parallel mechanism, which consists of an in-series assembly (1), an in-parallel branched-chain assembly A (2), an in-parallel branched-chain assembly B (3), an in-parallel branched-chain assembly C (4) and a static platform assembly (5). Connecting rods at the upper ends of the in-parallel branched-chain assembly A (2), the in-parallel branched-chain assembly B (3), the in-parallel branched-chain assembly C (4) are installed on the static platform assembly (5); elastic plates at the lower ends of the in-parallel branched-chain assembly A (2), the in-parallel branched-chain assembly B (3), the in-parallel branched-chain assembly C (4) are installed on the sleeve of the in-series assembly (1); the motor base of the in-series assembly (1) is installed on the static platform assembly (5); and the sleeve of the in-series assembly (1) is respectively connected with the elastic plates of the in-parallel branched-chain assembly A (2), the in-parallel branched-chain assembly B (3), the in-parallel branched-chain assembly C (4). The load simulator is used for performance test for instruments and equipment; in addition, the load simulator has the ability of combined loading of loads in various directions, and the simulator is realized by the series-parallel connection of in-series mechanisms and in-parallel mechanisms.

The invention discloses a novel material S-CrPbCd for repairing heavy metal Cr-Pb-Cd contaminated soil as well as a preparation method and a using method of the novel material S-CrPbCd. The material comprises 5-15 percent of modified carbon nano tube, 10-60 percent of modified clay mineral and 20-60 percent of quicklime. The S-CrPbCd can efficiently adsorb Pb, Cd and Cr in the soil, and does not obviously change the soil property and cultivability. The S-CrPbCd enables the residue amount of Pb, Cd and Cr in sensitive crops to be reduced to 75-90 percent within 1-2 months, and meanwhile, the material has the characteristics of low cost, simple preparation process, no secondary pollution, quick action and easiness in large-area popularization.

The invention applies techniques for image reconstruction from X-ray diffraction patterns on the three-dimensional imaging of defects in EUVL multilayer films. The reconstructed image gives information about the out-of-plane position and the diffraction strength of the defect. The positional information can be used to select the correct defect repair technique. This invention enables the fabrication of defect-free (since repaired) X-ray Mo—Si multilayer mirrors. Repairing Mo—Si multilayer-film defects on mask blanks is a key for the commercial success of EUVL. It is known that particles are added to the Mo—Si multilayer film during the fabrication process. There is a large effort to reduce this contamination, but results are not sufficient, and defects continue to be a major mask yield limiter. All suggested repair strategies need to know the out-of-plane position of the defects in the multilayer.

The acidifying agent as fodder additive is compounded with several kinds of organic acid with lactic acid as main component and / or organic acid salt, and features that it has total organic acid amount of 45-53 wt% and silica hydrate as carrier. The acidifying agent has good compatibility and strong acidifying effect, and its coated product has no corrosion and harm, and no destruction to protein and vitamins and may be mixed well with various feed components.

The invention relates to a method for preparing modified biomass charcoal for passivating lead and cadmium in soil. The method comprises the following steps: A, grinding and screening biomass raw materials; B, respectively dissolving FeSO4.7H2O and KMnO4 in water, uniformly mixing, regulating the pH value to 7, thus obtaining iron and manganese oxide suspension; C, adding the ground biomass raw materials into the iron and manganese oxide suspension, uniformly stirring, soaking, drying at the temperature of 105 DEG C for 6 hours, thus obtaining a biomass material loaded with iron and manganese oxides; and D, adding the biomass material loaded with iron and manganese oxides into a reactor, raising the temperature to 450-650 DEG C under oxygen-limited conditions, carrying out a pyrolysis carbonization reaction, thus obtaining the modified biomass charcoal. According to the method disclosed by the invention, the iron and manganese oxides are distributed in the surface and pores of the biomass charcoal, a passivation effect of the biomass charcoal on heavy metals lead and cadmium can be obviously improved, the environmental benefits of the biomass charcoal for treating contaminated soil are effectively improved, and the remediation cost of heavy metal contaminated soil also can be effectively reduced.

A method for testing creep performance of metal film by pressing in room temperature includes applying nanoimpression gauge on metal film to obtain displacement ¿C load curve after load is full by controlling strain ratio and press ¿C in depth, converting said curve to be stress ¿C strain ratio curve to obtain stress index of creep performance and using obtained stress index to evaluate service stability of metal film.

The invention discloses a method for testing reliability of semiconductor devices which have negative bias temperature instability (NBTI). The method comprises the following steps: measuring the NBTI curve of a first set of semiconductor devices; measuring the 1 / f noise power spectral density and drain current of the first set of semiconductor devices at a predetermined frequency under the condition that the first set of semiconductor devices is biased in a gate electric field; measuring the equivalent oxide layer thickness of the gate dielectric of the first set of semiconductor devices; measuring the 1 / f noise power spectral density and drain current of a second set of semiconductor devices at the predetermined frequency under the condition that the second set of semiconductor devices is biased in the gate electric field; measuring the equivalent oxide layer thickness of the gate dielectric of the second set of semiconductor devices; and evaluating the deterioration characteristic of the second set of semiconductor devices by using the NBTI curve of the first set of semiconductor devices. The method disclosed by the invention saves the time required for testing the reliability of a large number of semiconductor devices, and can not damage the second set of semiconductor devices.

The invention belongs to the automobile structure technical filed and discloses an automobile brake pedal device. A pedal shaft movable lead rail (5) is arranged at the pinning pivot of a pedal frame (10) and the lead rail is of arc groove structure. The front end of a pedal arm (6) is fixed at one end of the pedal shaft movable lead rail (5) by a pedal shaft stop device (4). The arrangement of arc groove direction and position make a pedal (7) in a position closest to the driver when the pedal arm (6) gets no outer force, namely the limit position of the vehicle back direction. Adoption of the technical proposal makes use of vehicle front-collision sensor and pedal shaft stop and release control to perform control, which can protect the ankles and calves of driver actively. When front collision happens to a vehicle, the pedal moves forward and downward, and thus avoids and reduces the touch between the driver and the pedal. The device has the advantages of sensitive and rapid reaction, no damage to pedal and pedal arm, simple structure and reliable functions.

The invention relates to detection equipment for welding spot failure of a whole set of white vehicle body. The detection equipment comprises a white vehicle body welding assembly, a vibration exciter and an acceleration sensor, wherein the white vehicle body welding assembly is fixedly arranged on a rack through a special clamp system; one side of the vibration exciter is connected with a data control and acquisition system; the other side of the vibration exciter is a free end for vibration excitation; the acceleration sensor is attached to a key part of the white vehicle body to be detected by using a magnet; the data control and acquisition system is connected with the acceleration sensor and is used for simply processing the acquired voltage signal and then transmitting data to a microcomputer; the data control and acquisition system and the microcomputer form a data detection and analysis system, i.e. an MIMO (Multiple Input Multiple Output) system; and the MIMO system integrates a signal acquisition system and can be used for modal analysis and damage identification of residual force vector as well as can be used for sampling, analyzing and processing the signal acquired in a current area to obtain an accurate detection result.

The invention provides a method and device for recovering deleted data in the SQLite. The method includes the steps that a B+tree type main tree and a WAL file which correspond to a data sheet are read from the SQLite; the WAL file is divided into a plurality of page sets according to imperative statements; a first unread page set is read and marked as read and is marked as a first page set; if the first page set is not empty, a second page set related to the main tree is extracted from the first page set; if the second page set is not empty, the second page set and related pages form a B+tree type second subtree; if the second subtree is not empty, a first subtree, corresponding to the second subtree, in the main tree is obtained, and whether the second subtree is in a data deleting type or not is judged; if the second subtree is in the data deleting type, first original data deficient in the first subtree are found according to the second subtree, and data recovering can be carried out on the deleted data corresponding to the first original data in a preset mode conveniently. By means of the method, the data recovery accuracy rate and the data recovery comprehensiveness can be improved.

A device for disassembling a waste circuit board comprises a shell, an electric heater and a fan, which is characterized in that an internal heating space of the device is equipped with a rotatable rotary barrel for placing the waste and old circuit board, and the barrel wall of the rotary barrel is provided with a mesh hole which can be passed by an element. The device can realize the purpose of the automatic disassembly of the waste and old circuit board. The device has the advantages that: compared with the manual disassembly and washing, the efficiency is greatly improved; as the temperature of hot wind of the internal heating space of the device is adjustable and controllable, the set temperature of the hot wind can not only melt a tin point, but also not cause the decomposition of the PCB board and the paint, thus greatly reducing the generation of waste gas; as the internal heating space of the device is near to the closed state when in work, the hot wind is recycled, which can not only save the energy, but can also further reduce the emission of the waste gas to the air.

The invention discloses an ultrasonic detection method of scale thickness in a pipeline. The method comprises the following steps of: utilizing double incidences of ultrasonic waves at different angles, establishing simultaneous equations on the basis of propagation velocities of the known ultrasonic wave on the pipe wall and in the filled fluid and the relationship between an incident angle and a refraction angle of the ultrasonic wave by measuring the penetration time of the ultrasonic waves in the pipeline filled with fluid during the double incidences, and further calculating the velocity and the thickness of a scale layer in the pipeline. With the method, the scale thickness can be measured under the condition that the scale characteristic is unknown, the working detection of the pipeline can be achieved, and the method has reliable accuracy and no destructive effect.

The invention discloses halogen-free and flame-retardant hard polyurethane foam plastic and a preparation method thereof, relating to foam plastic. Raw materials include polyether polyol 4110, polymethylene polyphenyl isocyanate, a tertiary amine catalyst, dibutyltin dilaurate, a silicon-carbon bond foam stabilizer, 2,4,6-tri(dimethylaminomethyl)phenol, a foaming agent, octa-(3-hydroxyl-3-methyl butyl dimethylsiloxy)silsesquioxane, dimethyl methylphosphonate and micron-sized alpha-alumina trihydrate. The method comprises the following steps of: mixing the polyether polyol 4110, tertiary aminecatalyst, dibutyltin dilaurate, silicon-carbon bond foam stabilizer, 2,4,6-tri(dimethylaminomethyl)phenol, foaming agent, octa-(3-hydroxyl-3-methyl butyl dimethylsiloxy)silsesquioxane and micron-sized alpha-alumina trihydrate to obtain A; adding the dimethyl methylphosphonate into A to obtain B; and adding the polymethylene polyphenyl isocyanate into B, pouring into a mold for foaming, curing anddemolding to obtain the halogen-free and flame-retardant hard polyurethane foam plastic.

The invention discloses a digital holography-based three-dimensional micro-observation apparatus for cell dynamic of a living organism. According to the apparatus provided in the invention, a microscopic technology of digital holography is employed, so that dynamic three-dimensional microscopic observation without contact, damage and pretreatment on a cell of a living organism can be realized; a fiber optical path is utilized to realize object light illumination and an optical path portion of the object light employs a vertical type structure, so that it is convenient to carry out observationon the cell of the living organism; reference light utilizes a light beam turnover device to control an included angle between the reference light and the object light so as to realize off-axis digitholography; and an infinite distance correction microscopic object lens is employed to carry out pre-amplification and imaging on the cell; simultaneously, a relay lens is utilized to adjust an imaging position and a wavefront curvature of the object light, so that observation resolution is improved. According to the apparatus, layout structures of a plurality of optical elements are compact, flexible and stable thorough a platform; moreover, the apparatus can be applied to dynamic observation on the cell of the living organism for a long time.

The invention relates to a digital holographic three-dimensional appearance detecting device based on multiple wavelengths. The device carries out surface appearance measurement on the surface of a three-dimensional object by adopting the multiple wavelengths through a digital holographic method. In an optical path structure, the object to be measured is illuminated by planar optical waves, reflected object light is collected, and the included angle between reference light and the object light is controlled through a light beam deflector to achieve off-axis digital holography. In order to enlarge the measurement range while the observation resolution ratio is ensured, the object to be measured can be measured through light beams with the different wavelengths, obtained holographic spectrograms are processed in a subtractive iteration mode, and then three-dimensional appearance information of the object which is to be measured and free of phase position wrapping is obtained. Due to an integrated optical platform, all the optical elements are compact in layout structure, flexible to use and stable, and the detecting device can be used for observing three-dimensional appearances of optical elements large in height and high in accuracy and roughness and mechanical assemblies including mechanical rotors and the like on line.

The present invention relates to the field of functional food and particularly relates to a composite probiotic and prebiotic composition for improving constipation. The provided composite probiotic and prebiotic composition for improving the constipation comprises probiotics, lactitol, resistant dextrin, inulin, oligofructose, xylooligosaccharide, oligochitosan and oligoisomaltose. Prebiotics aredried using a dryer; the dried prebiotics are sterilized; the sterilized prebiotics are taken out to be placed in a sealed container for natural cooling; then the probiotics and prebiotics are weighed according to a weight ratio; and the weighed materials are mixed to obtain the composite probiotic and prebiotic composition. The probiotics and prebiotics are combined to stabilize the micro-organism colony environment in the intestines, also do not stimulate gastrointestinal nerves, do not produce drug dependence, and achieve the purpose of improving the constipation for a long time.

The green refrigerant for small commercial refrigerator includes propane 54 wt%, isobutane R600a 45.5 wt% and tetrahydrothiophene THT 0.5 wt% to replace R134a; or includes propane 61 wt%, isobutane R600a 38.5 wt% and tetrahydrothiophene THT 0.5 wt% to replace R12. The present invention has refrigerating performance similar to that of R134a and R12, but has no destruction on ozone layer and greenhouse effect similar to CO2. The green refrigerant has simple mixing process, low consumption, low cost only 1 / 20 that of R134a, easily detected leakage and safety for use in small refrigerator.

The invention relates to an absorption type vehicle-mounted air conditioning system using exhaust gas waste heat of an automobile engine and a coolant of the engine as thermal power sources, which belongs to the field of air conditioning systems. At present, the vehicle-mounted air conditioning systems of public buses and large tourism passenger vehicles generally have extremely high oil consumption and tail gas emission and extremely serious energy waste and environmental pollution. In the vehicle-mounted air conditioning system, water is used as a refrigerant, and lithium bromide solution is used as an absorbent, so that the absorption type vehicle-mounted air conditioning system is nontoxic and flavorless, and does not have harm to human bodies or damaging effects on the atmospheric ozone layer. The heat of the tail gas waste heat of the engine and the coolant of the engine is used as the power sources of the vehicle-mounted air conditioning system, so that the fuel oil consumptionis lowered, the operating cost of the public buses or large tourism buses is reduced, the emission load of automobile tail gas is effectively lowered, and ideas of energy conservation and environmentfriendliness are truly realized.

The invention discloses a method for quickly and non-destructively detecting variety, sugar degree and acidity of an apple, and belongs to the technical field of food detection. The method disclosed by the invention comprises the following steps: acquiring a near infrared spectrum of an apple sample, and simultaneously, respectively detecting the sugar degree and the acidity of the apple through a handheld refraction sugar degree meter and a pen type pH meter; then, performing dimension reduction processing on the pre-processed apple spectrum data with a principal component analysis method, and optimizing by using a genetic algorithm; finally, classifying with a BP neural network method, and finally, determining an optimal prediction model through repeated verification. According to the BP neural network-based prediction model established by the invention, the variety, the sugar degree and the acidity of the apple can be predicted very well. In a conventional method, the apple is required to be damaged, so that the conventional method is destructive detection; moreover, the sugar degree and the acidity are required to be detected respectively; the variety of the apple cannot be detected through a suitable method. The method has the advantages of non-destructiveness, quickness, low cost, no sample pre-treatment, no chemical reagent, no pollution and the like; moreover, the variety, the sugar degree and the acidity of the apple can be predicted simultaneously.