54results about How to "Lossless" patented technology

The invention relates to the technology transfer of graphene, and in particular to a low cost clean nondestructive transfer method of large area of graphene. According to the method, a target substrate is used as a structure support layer for graphene transfer, firstly, the large area of graphene on an initial substrate is combined with the target substrate, then the large area of graphene is used as an electrode for nondestructive separation of the graphene and the initial substrate by bubbles generated in the process of electrolysis so as to realize the clean nondestructive transfer of the large area of graphene to the target substrate. The target substrate is used as the structure support layer for graphene transfer, so that the transfer step is simplified, breakage of the large area of graphene in the transfer process can be reduced, the graphene surface contamination caused by use of a transfer medium can be avoided, the combination of the graphene and the target substrate can be realized by a reel-to-reel rolling process, large-scale and continuous transfer is easy to realize; by use of an electrolytic nondestructive separation method, damage to the initial substrate can be avoided, the initial substrate can be repeatedly used, and the cost of transfer can be reduced.

A plane nuclear magnetic resonance micro coil micro detector is disclosed that consists of plane nuclear magnetic resonance micro coil [1] and micro flow channel structure [2]. It adopts the integral design; the plane nuclear magnetic resonance micro coil [1] is processed on the surface of the polyimides substrate [3], the micro flow channel structure [2] is rectangle structure and processed on the other surface of the polyimides substrate [3], it is embedded in the inner of the polyimides substrate [3] which is under the plane nuclear magnetic resonance micro coil [1] by the polyimides slice [4]. When it is working, the plane nuclear magnetic resonance micro coil works as the radio-frequency exciter and the signal receiver at the same time, and actuates the sample to be measured to generate the NMR signal and obtain the NMR wave spectrum. The invention can fulfill the detecting requirements of lossless and real-time, the molecular structure and information of images-structure of detecting sample can be supplied. It can be used in fields of analysis detection of tiny sample, real-time dynamic monitoring of chemical reaction, and biological texture and growth status of cell.

The invention discloses a method for testing the moisture distribution of an asphalt mixture based on industrial computed tomography (CT), relates to a testing method for the internal moisture distribution of the asphalt mixture, and aims to solve the problem that a moisture distribution law cannot be intuitively and accurately acquired through an existing method for testing the moisture distribution of the asphalt mixture. The method for testing the moisture distribution of the asphalt mixture comprises the following steps: fixing a clamp made of a foam material onto an industrial CT machine supporting table; covering an X-ray outlet with a metal sheet; starting an industrial CT machine; placing a dry test piece into the clamp; debugging scanning parameters of the industrial CT machine; scanning the test piece, performing image reconstruction on a scanning result through software; analyzing size parameters of the test piece; soaking the dry test piece in water; performing image reconstruction and parameter analysis on the scanning result again; and setting an addition area of a non-clearance substance as a moisture distribution area so as to complete testing of the moisture distribution of asphalt. By virtue of the testing method, the moisture distribution can be visualized, and the measurement accuracy is improved.

The invention relates to a method for detecting the volume and surface area of poultry eggs. The method includes the following steps of: S1. extracting the geometric coordinate information of an edge pixel point of poultry eggs in a RGB color image according to the obtained poultry egg RGB color image; S2. calculating the pixel volume and V(p) of poultry eggs, as well the pixel surface area and S(p) according to the extracted geometric coordinate information of the edge pixel point; S3. establishing a relation model of actual volume V and pixel volume and V(p), and of actual surface area S and pixel surface area and S(p) according to the pixel volume, V(p), pixel surface area and S(p); and S4. detecting the actual volume V and the actual surface area S of the poultry eggs according to the relation models. The technical proposal of the invention has the following advantages of: (1) fast detection speed and high accuracy with the use of a machine vision method; and (2) no-wear property and no influence on the quality of the poultry eggs in the detection process.

The invention discloses a method for testing the polarity of semiconductor crystal or epitaxial thin film material, comprising the following steps: irradiating the semiconductor crystal or epitaxial thin film material which is to be tested by utilizing circular polarized light, testing the current direction of the generated no-bias current; and judging the polarity of the semiconductor crystal or epitaxial thin film material which is to be tested according to the current direction of the no-bias current. In addition, the invention further discloses a system for testing the polarity of the semiconductor crystal or epitaxial thin film material. The test system in the invention can work under normal temperature and normal pressure, has high test accuracy, simple and speedy sample preparation, and high test speed, is non-destructive to the tested samples, and has low demand towards the testing personnel with easy operation; the test time of each sample is only 10 minutes; what is more, the whole set of test system is low in price and can greatly reduce test cost.

The invention discloses a turning flutter acceleration collection system and method based on machine vision, and relates to the technical field of machine vision detection. The collection system and method are suitable for workpiece rotation, a tool does the axial turning machining, the system comprises an image collection subsystem, an image processing subsystem and a signal analysis and processing subsystem, and the method comprises the steps of firstly mounting all parts of the system, setting collection parameters to obtain an image, carrying out image pre-treating on a first frame image obtained by an industrial camera, seeking a characteristic area, building a sample sub area, carrying out same pretreatment on all frames of image, finding out a target sub area to obtain pixel displacement, according to the amplifying rate of an amplifying lens and the calibration method principle, obtaining the actual vibration displacement of the tool, and finally, adopting an FFT method to convert flutter displacement into flutter acceleration. The machine vision method is adopted, and the advantages of being free of contact and damage, high in precision and the like are achieved.

The invention discloses a method for rapidly detecting and evaluating the compaction quality of a road inorganic stabilized grain base. The method comprises the following steps: 1, detecting the deformation modulus Evd of the road inorganic stabilized grain base under different compactnesses K by adopting PFWD through onsite test, establishing a relationship between the roadbed compactness K and the deformation modulus Evd through regression, and calculating the Evd0 value of the road base under a required compactness according to the regression relationship; 2, carrying out PFWD detection on a constructed and compacted road to obtain the Evdi values of different detection points, and calculating the deformation modules representative value Evdp of an evaluation segment; and 3, evaluating the compaction quality of the base. The method is used for rapidly and destructively evaluating the compaction quality of the road engineering grain base material in the road grain base construction quality control process.

The invention discloses a polarized optic-acoustic microscopic imaging device and method. The device comprises an optic-acoustic excitation light source generation assembly, an optic-acoustic signal processing assembly and a collection platform assembly; and the optic-acoustic excitation light source generation assembly comprises a laser, a first lens, a pin hole, a second lens, a polarizer, a 1 / 2glass slide, a scanning vibrating mirror and a focusing lens. The method comprises the concrete steps that the laser generates a laser beam, the laser beam passes the first lens, pin hole, second lens, polarizer, 1 / 2 glass slide, scanning vibrating mirror and focusing lens successively and forms linearly polarized light, the focusing lens focuses the linearly polarized light on a sample to generate an optic-acoustic signal, and the optic-acoustic signal processing assembly reconstructs a sample polarized optic-acoustic and quantitative ordered-degree 3D imaging graph according to optic-acoustic signals, generated by linearly polarized light in different electric vector direction, collected by the collection platform assembly and a medium ordered degree representing parameter. Thus, lossless high-definition 3D polarized light optic-acoustic microscopic imaging and quantitative structured ordered degree imaging can be realized.

The invention provides a method for designing a single-screw axial-flow pump impeller. The method provides a design formula of the main geometric parameters of the impeller such as the diameter D1 of an impeller inlet, the diameter dh of an impeller hub, the maximum outer diameter D2max of the impeller, the inclined angle alpha2 of an outlet edge, the minimum outer diameter D2min of the impeller,the width b2 of the outlet edge and the axial length L of the impeller. By application of the impeller designed by the invention, not only is need for sewage treatment met, but also the flowing condition is improved simultaneously, and the flowing capability, no destruction and no winding of an axial flow pump are improved. Therefore, the single-screw axial-flow pump applying the impeller is especially suitable for the sewage treatment industry.

The invention discloses a mahogany furniture material discriminator, which comprises a base. Universal wheels are fixed at the four corners of the bottom of the base; a tool box and a storage box arefixed at the top part of the base; the tool box is connected with the storage box into a whole; a cover plate is arranged on the side, near to the tool box, of the top part of the storage box; the cover plate is connected with the tool box in a rotational way through a hinge; a lifting device which is fixed at the interior part of the storage box comprises a fixed block, a first lead screw, a second lead screw, a support block, a handle, a thread cylinder, a mounting board and a drive unit; the first lead screw and the second lead screw are respectively distributed on the two sides of the storage box; and one end of the first lead screw is fixed with one end of the second lead screw. The mahogany furniture material discriminator has the advantages that the adjustment in the height of the discriminator body can be realized through the lifting device; the fine adjustment to the discriminator body is realized through a rotating device; and the discriminant range of the discriminator is enlarged.

The invention discloses an optical method for simultaneously measuring a surface tension coefficient and a contact angle of a liquid. The optical method utilizes parallel laser beams to vertically illuminate the curved liquid surface. Through change of the position of an observation screen, the reflected light field characteristics of the observation screen at different positions are acquired through an area array microscopy camera and computer image processing. Through a Young-Laplace equation, the curved surface equation of the curved liquid surface is calculated. According to the curved surface equation for respectively solving a surface tension coefficient and a contact angle, the liquid surface tension and a contact angle are simultaneously measured when an unknown liquid to be testedcontacts with a device material. The optical method is easy to operate in a test, realizes non-contact measurement and has non-destructive characteristics and strong operability.

The invention discloses a method used for detecting dextrin content of health food via mid-infrared spectrum technology. The method comprises following steps: (1) tabletting and scanning of potassium bromide blank tablets are carried out so as to obtain a standard bland spectrogram; (2) tabletting and scanning of a dextrin standard sample are carried out so as to obtain a dextrin standard sample spectrogram; (3) tabletting and scanning of dextrin standard samples with different concentration are carried out so as to obtain spectrograms of dextrin standard samples of different concentration; (4) tabletting and scanning of samples to be detected are carried out so as to obtain a spectrogram of the samples to be detected; and (5) the spectrogram of the samples to be detected and the spectrograms of the dextrin standard samples of different concentration are subjected to similarity comparison using Fourier infrared spectrometer compare software so as to determine dextrin mass content of the samples to be detected. No strict requirement on state of the samples to be detected is made; the method can be applied on samples in gaseous state, liquid state, and solid state; the method is simple and rapid; only simple processing, such as physical smashing and tabletting, of the samples is needed; the samples can be subjected to direct testing without tedious separation process; universal equipment is used; and measuring operation is simple.

The invention discloses a farm unmanned automatic field patrol method which comprises the following steps: farm basic surveying and mapping: using surveying and mapping equipment for measuring the terrain of a farmland to be patrolled, and building a terrain model of the farmland through a computer; determining farmland plot boundary information, determining the position of an unmanned aerial vehicle hangar, installing and debugging the unmanned aerial vehicle hangar, installing the unmanned aerial vehicle hangar at the pre-selected position selected in the step 3, and then debugging the unmanned aerial vehicle in the unmanned aerial vehicle hangar; setting a field patrol strategy, and setting the field patrol time and route according to the environmental conditions of the farmland; carrying an agricultural condition load into agricultural condition remote sensing acquisition data, and collecting farmland data through the agricultural condition load carried on the unmanned aerial vehicle; uploading the data to a computer terminal; and carrying out primary and secondary analysis or display on the agricultural condition data. Compared with the prior art, the technical scheme of the invention has the advantages of high efficiency, unmanned operation, completeness, losslessness and accuracy.

The invention relates to a two-way multi-share plough unit, mainly comprising a plow stock 1, a U-shaped bolt 2, a plow standard 3, a plough share 4, a deep loosing shovel 5, a middle shovel plough 6,and the like. The plow standard 3 is fixed below the plow stock 1 through the U-shaped bolt 2; the plough share 4 is mounted in the middle of the plow standard 3; the deep loosing shovel 5 is mountedat the bottom of the plow standard 3; and the middle shovel plough 6 is mounted below a middle longitudinal beam of the plow stock 1; the plough share 4 is divided into a left group and a right groupwhich are respectively configured in a reverse U shape or a V shape, so that the width of the whole unit is increased by about one fold than the operating width of the traditional one-way plough andthe distance in the front and rear directions is reduced by about a half.

The invention relates to the technology transfer of graphene, and in particular to a low cost clean nondestructive transfer method of large area of graphene. According to the method, a target substrate is used as a structure support layer for graphene transfer, firstly, the large area of graphene on an initial substrate is combined with the target substrate, then the large area of graphene is used as an electrode for nondestructive separation of the graphene and the initial substrate by bubbles generated in the process of electrolysis so as to realize the clean nondestructive transfer of the large area of graphene to the target substrate. The target substrate is used as the structure support layer for graphene transfer, so that the transfer step is simplified, breakage of the large area of graphene in the transfer process can be reduced, the graphene surface contamination caused by use of a transfer medium can be avoided, the combination of the graphene and the target substrate can be realized by a reel-to-reel rolling process, large-scale and continuous transfer is easy to realize; by use of an electrolytic nondestructive separation method, damage to the initial substrate can be avoided, the initial substrate can be repeatedly used, and the cost of transfer can be reduced.

The invention discloses a method for detecting freezing-thawing damage to an asphalt mixture based on microcosmic strain energy distribution, and belongs to the technical field of transportation engineering. The method solves the problems that freezing-thawing damage evaluation methods at the current stage are all destructive tests, and it is difficult to explain the destructive effect of freezingand thawing on asphalt mixtures from the aspect of the mechanism of freezing-thawing damage. The method comprises the following specific steps of 1, preparing a sample; 2, obtaining an initial samplecomputed tomography image; 3, carrying out a freezing-thawing test; 4, obtaining a computed tomography image after freezing-thawing damage; 5, repeating the process from the third step to the fourthstep, and obtaining computed tomography images under different freezing-thawing cycle frequencies; 6, extracting strain distribution; 7, calculating average strain energy and evaluating the freezing-thawing damage. The method can be applied to freezing-thawing damage detection on asphalt mixture test pieces.

The invention discloses a sparrow brace imitating reinforcing structure for reinforcing a wood structure joint and a manufacturing method thereof. The sparrow brace imitating reinforcing structure for reinforcing the wood structure joint comprises angle arm steel plates, a reinforcing connector and arc-shaped arch steel. The number of the angle arm steel plates is two. One ends of the two angle arm steel plates are hinged, and connecting lug plates are arranged at the other ends of the two angle arm steel plates correspondingly. The two angle arm steel plates are further provided with external connectors connected with the wood structure joint. A spiral-shaped spring portion is arranged at one end of the arc-shaped arch steel, and the spring portion and the other end of the arc-shaped arch steel are connected to the connecting lug plates of the two angle arm steel plates correspondingly. A reinforcing area is formed among the two angle arm steel plates and the arc-shaped arch steel. The reinforcing connector is located in the reinforcing area and fixedly connected with the two angle arm steel plates. The sparrow brace imitating reinforcing structure greatly improves the rigidity, bearing capacity and deformability of the wood structure joint and enhances the energy-dissipating capacity of the wood structure joint, thereby greatly improving the anti-seismic property of the wood structure joint.

The invention provides a high power linear constant current driving LED lamp module with small pressure drop and low line loss, comprising a rectifier bridge provided with a first diode, a second diode, a third diode and a fourth diode which are connected end to end, wherein a first node is arranged between the fourth diode and the first diode; a second node is arranged between the first diode and the second diode; a third node is arranged between the second diode and the third diode; a fourth node is arranged between the third diode and the fourth diode; the third node is in connection with a zero line terminal; the fourth node is grounding; a buck capacitor located between a live wire terminal and the first node; a linear constant current chip provided with a first binding post, a second binding post and a third binding post, wherein the second binding post is in connection with the fourth node; LED beads located between the second node and the first binding post; an anti-surge capacitor located between the first binding post and the fourth node; and a constant current value adjusting resistor located between the third binding post and the fourth node.

The invention discloses a livestock intestine cleaning method. The method comprises the following steps: step I, pretreating: cleaning the interior and the exterior of livestock intestines, and removing feces; step II, preparing an active pancreatic pulp cleaning solution, selecting animal pancreas, smashing the pancreas into pancreatic pulp, adding CaCl2 which accounts for 0.1 to 0.5 percent by weight of the pancreatic pulp, and adding starch and water; uniformly mixing, storing for 4 to 10 h under the condition of 4 to 10 DEG C, and activating pancreatin, thus obtaining active pancreatic pulp; diluting the active pancreatic pulp by adding water, and preparing to obtain the active pancreatic pulp cleaning solution; step III, soaking for enzymolysis: soaking the intestines by using the active pancreatic pulp; step IV, rubbing and cleaning the intestines with clean water; step V, secondarily soaking and cleaning: preparing a secondary soaking and cleaning solution by utilizing folium sennae extract liquid and rosemary extract liquid as well as lactic acid, and soaking the intestines by utilizing the secondary soaking and cleaning solution; and step VI, rubbing and cleaning the intestines by using clean water. By adopting the livestock intestine cleaning method, objectives of cleaning, deodorizing and sterilizing the intestines in a nondestructive manner can be realized.

The invention discloses a PDF editing and manuscript reviewing method of a mobile terminal. The method comprises the steps that a PDF manuscript is uploaded by an author through a manuscript contribution system of a publishing house at a PC terminal; after the approval of a topic selection, the editor commissioning stage is started, the obtaining, reading and editing of the PDF manuscripts are achieved by the editor visiting the WeChat public number of the publishing house; wherein the PDF manuscripts are analyzed and transformed at the back end, and are read and edited by the editors at the front end. The clarity of the PDF at the mobile end is loss-free and the processing and the editing of PDF are achieved by the method, and the flow of the publishing procedures can be carried out through WeChat.

The invention discloses a nondestructive testing method for the gelatin quality of a preserved egg based on a vibration technology, and relates to the field of nondestructive testing of the gelatin quality of the preserved egg. The method comprises the following steps: firstly, constructing a knock acquisition system, putting the preserved egg on a preserved egg fixing platform, bonding one end ofa piezoelectric acceleration sensor with the bottom of the preserved egg and connecting the other end of the piezoelectric acceleration sensor with a dynamic signal acquisition instrument; secondly,pressing a key on a singlechip control board to control a direct current electromagnet to achieve knock on the preserved egg; thirdly, transmitting a preserved egg vibration signal acquired by the dynamic signal acquisition instrument to a computer and processing through signal processing software; and fourthly, extracting corresponding characteristic values for modeling and selecting an optimal model for discriminating. According to the nondestructive testing method disclosed by the invention, the gelatin quality of the preserved egg can be accurately predicted by utilizing a knock vibrationtechnology; the nondestructive testing method has the characteristics of high speed, non-destructive property, intelligentization and the like, realizes the nondestructive testing of the gelatin quality of the preserved egg and has a broad application prospect.

A method for rapidly estimating the thickness of a photosensitive element chip in an infrared focal plane detector includes the steps that 1, when the thickness of the photosensitive element chip is reduced to 20 microns, a concave annulus appears on the upper part of a negative electrode region; 2, when the thickness of the photosensitive element chip is reduced to 14 microns, besides the typical concave annulus, checkerboard buckling deformation patterns appear on the two sides of the negative electrode region; 3, when the thickness of the photosensitive element chip is reduced to 10 microns, besides the concave annulus and the checkerboard buckling deformation, up-convex deformation appears over indium bumps connected with negative electrodes at the concave annulus; 4, when the thickness of the photosensitive element chip is reduced to 6 microns, the valley-to-peak difference of the checkerboard buckling deformation is further increased. Compared with an existing method, the method for rapidly estimating the thickness has the advantages that non-contact, non-destruction, rapidness and accuracy are achieved, and the batch production requirement can be met.

The invention discloses a method for in-situ nondestructive detection of stone sources of stone cultural relics, which is used for detecting the stone sources of the stone cultural relics and comprises the following steps: determining potential sources of stones ofthe detected stone cultural relics through regional geologic features, historical records and the like; utilizing a portable X-ray fluorescence spectrophotometer to test chemical components of the detected stone cultural relics and stones of a potential source of the stone cultural relics; carrying out statistical analysis on the detected chemical component data by respectively utilizing a clustering analysis method and a Bayesian principal component analysis method; when the stones of the detected stone cultural relisc are matched with a certain potential source stone, obtaining the source of the stones of the detected stone cultural relics; and if the stones of the detected stone cultural relics is not matched with the potential source stone, continuously repeating the steps until the detected stone cultural relic stone is matched with the potential source stone. According to the method, the detected stone cultural relics are not damaged, sampling is not needed, the reliability is high, and in-situ detection can be achieved.

A static cutting method for a concrete structure comprises the following steps that construction machinery is prepared, a construction part is strictly investigated, whether cutting conditions are met or not is determined, and temporary supporting is conducted on the periphery needing to be cut through steel pipes; a specific cutting part is determined according to an original drawing and a construction scheme, lofting and branching are conducted on the part needing to be cut, cutting lines are determined, and the weight of each cutting block is about 200 kg; an excessive cutting value is calculated; as the shape of a cutting saw blade and the shapes of the cutting blocks decide that an excessive cutting phenomenon is inevitable during cutting, and corner pretreatment must be performed on the pre-cutting inner side in a mode of being tangential to the cutting lines; according to the placed cutting positioning line, a reasonable position is selected to drill a hole in a concrete entity, and an equipment base is fastened through an expansion bolt; and a reasonable cutting mode is selected, and the cut blocks are safely conveyed to a place with a large bearing load from a temporary stacking place. The static cutting method has the characteristics of low noise, no pollution, mechanization, no damage, economical efficiency and the like.

The invention discloses a paint film cleaning agent and a preparation method and application thereof. The cleaning agent is prepared from, by mass, 10-20 parts of benzaldehyde, 4-8 parts of butyl cellosolve, 0.5-2 parts of an emulsifying agent, 1-2 parts of an activating agent, 0.5-1 part of a thickening agent, 20-42 parts of a cosolvent and 1-2 parts of a promoting agent. The cleaning agent takesbenzaldehyde and butyl cellosolve as main solvents, and a green neutral waterborne paint remover is prepared by matching of components in specific mass parts and is moderate in potential of hydrogen,in a pH range of 7-8, low in volatilization, effective in paint removal and free of corrosion of metal steel. The paint film cleaning agent is environmentally friendly in raw material, simple in preparation, short in paint film removal time, high in paint removal speed, efficient in removal without base material damages and extensively applicable to the field of automobile painting and cleaning,especially cleaning of automobile painting fixture with high requirements on base material precision.

The invention discloses a super-resolution photoacoustic imaging system and method based on a saturated absorption effect. The system comprises a laser emission module, a laser beam splitting / combining module and a signal acquisition / scanning imaging module; the laser beam splitting / combining module comprises a first beam splitting sheet, a first reflector, a chopper, a second reflector, a secondbeam splitting sheet, an optical delay unit and a vortex slide, wherein the first beam splitting sheet, the first reflector, the chopper, the second reflector and the second beam splitting sheet are connected in sequence to form a first optical branch. The first beam splitting sheet, the optical delay unit, the vortex slide and the second beam splitting sheet are connected in sequence to form a second optical branch; the first beam splitting sheet is connected with the laser emission module, and the second beam splitting sheet is connected with the signal acquisition / scanning imaging module. According to the invention, super-resolution photoacoustic imaging of a target object can be realized, super-resolution microscopy of non-fluorophores can be realized, an imaging sample cannot be damaged, and the authenticity of structural imaging and functional imaging is ensured.

The invention discloses a mineral resource exploration multi-dimensional analysis processing system based on the Internet of Things and feature recognition, and the system comprises an open-pit mine preliminary exploration module, an open-pit mine basic parameter obtaining module, an open-pit mine region division module, a region mineral depth exploration module, a mineral parameter database, an analysis cloud platform, and a background display terminal. According to the method, preliminary mineral resource exploration is carried out on a mine in an unmanned aerial vehicle prospecting mode so as to find out the geographic position of an open-pit ore deposit, region division is carried out on the open-pit ore deposit, appearance feature extraction is carried out on all ores in each divided ore deposit sub-region so as to screen out useful ores, and therefore, the distribution condition of the internal components of the screened useful ore is obtained by using an X-ray detector, so that the comprehensive storage coefficient of the mineral resources corresponding to the open-pit ore deposit is counted, the exploration efficiency is improved, a large amount of manpower exploration cost and material exploration cost are saved, and the exploration level is improved.