34 results about "Null field" patented technology

The invention discloses a method and a system for coding, decoding and reconstructing video image blocks, wherein the coding method comprises the following steps: selecting a prediction mode, and generating predicted blocks according to the reconstructed pixels around image blocks; calculating the difference between the pixels corresponding to the image blocks and the predicted blocks to obtain residual values, wherein all the residual values constitute a residual block; selecting the arrangement sequence of at least one residual value from a group of rearrangement sequences of the residual values to be selected, and rearranging the residual values in the residual block; transforming the rearranged residual block by selecting a transformation function to obtain the indication of the transformation coefficient of the residual block; and further scanning, quantifying and carrying out entropy-coding on the transformation coefficient. By rearranging the residual sampling values in the residual block in a null field, the characteristics of residual statistics in different modes can be similar or identical, thus achieving the performance similar to the transformation related to the modes by using fewer transformation functions and reducing the storage complexity of a coder and a decoder at the same time.

The invention discloses a method for processing a multi-viewpoint depth video. The method comprises the steps as follows: recombination conversion operation is executed aiming at the depth video; secondly, the converted depth video is smoothly processed in a time domain; thirdly, recombination conversion operation is executed aiming at the smoothly processed depth video to obtain a pretreated depth video; fourthly, coding compression, decoding recombination operation are executed aiming at the pretreated multi-viewpoint depth video; fifthly, depth recovery and null field smooth processing are executed aiming at decoded and recombined multi-viewpoint depth video; and lastly, a virtual viewpoint video image is mapped by the processed multi-viewpoint depth video. The method has the advantages that the pretreatment method can improve the time domain relativity of a depth video sequence, and further effectively improve the coding efficiency of the depth video; as for the situation of a code QP equal to 22, 27, 32 and 37, the coding efficiency can be saved by 17.07 percent to 38.29 percent, and the mapping quality of the obtained virtual viewpoint video image can be improved by about 0.05 dB.

The invention discloses an all-shearing type magneto-rheological damper. The all-shearing type magneto-rheological damper is characterized by comprising an outer cylinder, an inner cylinder and a ball screw pair, wherein the inner cylinder is coaxially arranged with the outer cylinder, shearing discs are fixed by the ball screw pair, the inner wall of the inner cylinder is provided with electromagnetic coils and sharing ring sets corresponding to the shearing discs one by one, magneto-rheological liquid is filled in a cavity of the inner cylinder, at least one electromagnetic coil is arranged between adjacent shearing rings fixed on the inner wall of the inner cylinder, and the shearing discs, the shearing rings and the inner cylinder form a closed flux loop. On the premise of keeping same external size and energy consumption of a magneto-rheological damper, null-field viscous damping of the magneto-rheological damper is reduced, controllable damping ratio range is enlarged, and the all-shearing type magneto-rheological damper is added with potential for application to a high-speed impact / vibration control system. Besides, service efficiency of the magneto-rheological liquid in the magneto-rheological damper is improved, and cost of the magneto-rheological damper is effectively reduced.

The invention discloses a digital image fuzzy intensification method for inosculating a plurality of fuzzy operators. The method is divided into four steps: step one, brightness-darkness grades are defined as four grades; step two, for a first grade image and a second grade image , a linear transit function is adopted to make conversion, for a third grade image and a fourth grade image, a nonlinear transit function is adopted to make conversion; step 3, on a fuzzy field, different brightness-darkness grades choose different fuzzy operators to make fuzzy image intensification: for the first grade image, a multinomial intensification operator is adopted to make fuzzy field intensification; for the second grade image, a logarithm type intensification operator is adopted to make fuzzy field intensification; for the third grade image and the fourth grade image, a sectional transit type intensification operator is adopted to make fuzzy field intensification; step 4, inverting back to null-field, fuzzy intensified null-field images are obtained and sent out. The invention can get a better visual efficiency whether the image is of insufficient exposure or over exposure.

The invention relates to a liquid crystal grating which comprises upper and lower glass base plates and a liquid crystal layer, wherein a comb-shaped transparent electrode layer and an orienting layer are arranged on both of the glass base plates; the orienting layer is divided into an upper orienting layer and a lower orienting layer; a barrier layer is arranged between each glass base plate and the orienting layer; the liquid crystal layer is arranged between the two glass base plates and are in direct contact with the orienting layers; a conductive layer is divided into an upper conductive electrode and a lower conductive electrode; and both the upper conductive electrode and the lower conductive electrode are round comb-shaped electrodes and are oppositely arranged. Generally, a nematic phase liquid crystal is applied to a common liquid crystal grating; the liquid crystal filled into the liquid crystal grating is cholesteric liquid crystal; according to the bistable characteristics of the cholesteric liquid crystal, the liquid crystal grating subjected to a certain surface treatment is capable of working in a null field state; different voltage pulses are utilized to realize the adjustable electric field for controlling the diffraction strength of the liquid crystal grating; the liquid crystal grating provided by the invention is simple in manufacturing process, is energy-saving and is free from polarization film; and the diffraction strength of the grating can be controlled by adjusting the electric field.

The present invention relates to a synchronization method of mobile data maintaining compatibility. The data is exchanged and synchronized between the server side and the client side through the XML data packet form, and when the client side is added to the server side for the first time, the server side adopts the following methods to process the client side added for the first time: the sever side gains the model information of the client side equipment, and obtains the characteristic of the client side equipment; the sever side adopts the independent procedures corresponding to the characteristic to make a branch processing according to the characteristic of the client side equipment. When the client side and the server side show repeating entries, the repeating entries can be solved by adopting a rename method. When the client side transmits a null field, the server side determines the significance of the null field, and further judges that whether the corresponding entries at the server side are needed to be renewed or not, according to the support field at the client side which is disposed beforehand, when a slow synchronization is carried out, an ID mapping table is generated, to guarantee the correctness and cleanness of the data mapped as far as possible, and then a stable and practical data synchronization system with a good compatibility is formed.

The invention discloses carbon-coated magneto-rheological fluid, which comprises magnetic particles, carrier liquid, a surfactant, a thixotropic agent, an antioxidant, a solid lubricant and a dispersant, wherein the magneto-rheological fluid comprises the following materials in percentage by mass respectively: 20 to 80 percent of the magnetic particles, 15 to 45 percent of the carrier liquid, 1 to 3 percent of the surfactant, 0.5 to 2 percent of the thixotropic agent, 0.5 to 2 percent of the antioxidant, 1 to 3 percent of the solid lubricant and 1 to 3 percent of the dispersant. The mass of the carbon-coated magneto-rheological fluid is very light; under the condition without a magnetic field, after standing for half a year, the carbon-coated magneto-rheological fluid has the settling amount not higher than 3 percent and has very high stability and mechanical properties; and an acid corrosion test proves that the carbon-coated magneto-rheological fluid has very strong inoxidability. Simultaneously, the shearing yield strength is not obviously reduced, and the null field viscosity index is obviously improved. The result of electron microscope scanning shows that the carbon-coated particles have better dispersity.

A generator including a first magnetic assembly and a second magnetic assembly wherein the first and second magnetic assemblies are arranged in parallel for the production of a magnetic field and a null magnetic field region, a rotor positioned between the first and second magnetic assemblies the rotor being coupled to a drive shaft extending through the first and second magnetic assemblies wherein a portion of the rotor is positioned in the null field region, a least one current transfer mechanism coupled to the rotor in the null field region and at least one current transfer mechanism coupled to the shaft, a drive mechanism attached to the shaft, whereby actuation of the drive mechanism causes rotation of the rotor in the magnetic field to produce a electric potential between the first and second current transfer mechanisms.

The invention discloses an inner by-pass valve type magnetorheological fluid suspension. The inner by-pass valve type magnetorheological fluid suspension is characterized in that according to a magnetorheological fluid unit, a hydraulic cavity is formed by an outer cylinder block, an inner cylinder barrel is concentrically arranged in the outer cylinder block, and an annular runner is formed between the outer cylinder block and the inner cylinder barrel; a magnetic exciting coil is embedded in an annular groove in the periphery of the inner cylinder barrel, and the magnetic exciting coil produces a magnetic field to enable magnetorheological fluid in the annular runner to work in a flow pattern; a rubber main spring in a rubber unit with bearing static loads is located on the exterior of the hydraulic cavity; and a piston rod and a piston form a piston mechanism, the piston axially moves in the inner cylinder barrel to drive the magnetorheological fluid in the hydraulic cavity to flow between the annular channel and an inner cavity of the inner cylinder barrel, and parallel action between the piston mechanism and the magnetorheological fluid unit is achieved. The inner by-pass valve type magnetorheological fluid suspension can control the damping force of the magnetorheological fluid, the dynamic rigidity of the suspension can be controlled, and the inner by-pass valve type magnetorheological fluid suspension has a large damping force control range, a maximal operating stroke and small null field dynamic rigidity.

The invention relates to a three-phase magnetorheological fluid and a preparation method thereof. The three-phase magnetorheological fluid is prepared from, by volume, 5-40% of magnetic particles, 60-90% of carrier liquid, 0.5-15% of magnetic fluid, 0.5-5% of emulsifier and 0.03-3% of cosurfactant. The viscosity of a null field of the three-phase magnetorheological fluid is low, magnetic induced energy storage modulus is high, the three-phase magnetorheological fluid has stronger magneto-rheological effect, the preparation method is simple, and the cost is low.

The invention provides a regulation and control method for a Skyrmion in a hexagonal MnNiGa. The regulation and control method comprises the following steps of 1) applying a magnetic field to the hexagonal MnNiGa, wherein the magnetic field is not strong enough to convert a strip-shaped magnetic domain in the hexagonal MnNiGa into the Skyrmion; and the direction of the magnetic field is not parallel to a family of crystal plane [001] in the hexagonal MnNiGa; and 2) applying a current to or / and heating the hexagonal MnNiGa to enable the strip-shaped magnetic domain to disappear. By virtue of the regulation and control method, a high-density Skyrmion array is formed in the hexagonal MnNiGa material system; and in addition, the high-density Skyrmion can exist in both of a null field and a wide-temperature-range room temperature.

The invention belongs to the technology of accelerator design, and particularly relates to a beam halo processing nonlinear magnet for an accelerator. The beam halo processing nonlinear magnet structurally comprises four magnetic poles which are oppositely arranged in pairs, and a magnetic field excitation component is arranged outside each magnetic pole, wherein a pair of shielding magnetic poles are arranged at the middle position of the four magnetic poles, the pole heads of the shielding magnetic poles are planes, a magnetic field generated by the plane pole heads is a null field, and a magnetic field generated by the pole heads of the four magnetic poles is a linear focusing area or a nonlinear focusing area; each magnetic field excitation component comprises a permanent magnet serving as excitation of a main magnetic field and excitation coils as excitation of auxiliary magnetic fields. The magnet provided by the invention can generate large-scale null field and focusing field strength, and the current beam halo processing problem can be solved, so that low-density particles on the edge are used for focusing high-density particles overlapped to the center, and negative influences of beam halo particles are avoided.

A method for removing cultural noise from a measurement of the field generated by an electromagnetic source, such as a current bi-pole or a magnetic loop source, the method comprising: simultaneously measuring the electromagnetic signal at a field measurement position and a calibration position close to the field measurement position, but in a null field of the source; using the field measurement and the calibration measurement to compute a filter that estimates the component of the field measurement that is correlated with cultural noise; convolving the computed filter with the calibration measurement to yield the estimated cultural noise component, and subtracting that component from the field measurement.

A device for introducing a static magnetic null field is disclosed. The device is comprised of a holder for magnets, wherein the magnets are arranged so that the null field is generated in the area of a sample of cells, tissue or other cellular material. The device is configured to maintain the magnetic null field for long periods of time. The device can function with bar magnets or certain electromagnets.

The invention belongs to accelerator design techniques, and particularly relates to a beam halo treatment nonlinear magnet for an accelerator. The beam halo treatment nonlinear magnet for the accelerator comprises four magnetic poles, every two magnetic poles are oppositely arranged, and an excitation coil is arranged outside each magnetic pole, wherein a pair of shaded poles are arranged in the middle of the four magnetic poles, the magnetic pole head of each shaded pole is a plane, magnetic fields generated by the plane magnetic pole heads are null fields, and the magnetic fields generated by the magnetic pole heads of the four magnetic poles are linear focusing areas or non-linear focusing areas. The beam halo treatment nonlinear magnet for the accelerator can generate a wider range of null field and focusing field strength, so that the current beam halo treatment problem can be overcome, low-density particles at the edges are focused and overlaid on the high-density particles of the center, and the adverse impact of beam halo particles is avoided.

The invention discloses an all-shearing type magneto-rheological damper. The all-shearing type magneto-rheological damper is characterized by comprising an outer cylinder, an inner cylinder and a ball screw pair, wherein the inner cylinder is coaxially arranged with the outer cylinder, shearing discs are fixed by the ball screw pair, the inner wall of the inner cylinder is provided with electromagnetic coils and sharing ring sets corresponding to the shearing discs one by one, magneto-rheological liquid is filled in a cavity of the inner cylinder, at least one electromagnetic coil is arranged between adjacent shearing rings fixed on the inner wall of the inner cylinder, and the shearing discs, the shearing rings and the inner cylinder form a closed flux loop. On the premise of keeping same external size and energy consumption of a magneto-rheological damper, null-field viscous damping of the magneto-rheological damper is reduced, controllable damping ratio range is enlarged, and the all-shearing type magneto-rheological damper is added with potential for application to a high-speed impact / vibration control system. Besides, service efficiency of the magneto-rheological liquid in the magneto-rheological damper is improved, and cost of the magneto-rheological damper is effectively reduced.

A generator including a first magnetic assembly and a second magnetic assembly wherein the first and second magnetic assemblies are arranged in parallel for the production of a magnetic field and a null magnetic field region, a rotor positioned between the first and second magnetic assemblies the rotor being coupled to a drive shaft extending through the first and second magnetic assemblies wherein a portion of the rotor is positioned in the null field region, a least one current transfer mechanism coupled to the rotor in the null field region and at least one current transfer mechanism coupled to the shaft, a drive mechanism attached to the shaft, whereby actuation of the drive mechanism causes rotation of the rotor in the magnetic field to produce a electric potential between the first and second current transfer mechanisms.

The invention discloses an intelligent electronic nameplate of a passive multistable CH-LCD (cholesteric-liquid crystal display). The intelligent electronic nameplate comprises a plastic panel, a multistable cholesteric liquid crystal display module, a photovoltaic plate component and a WIFI connector, the multistable cholesteric liquid crystal display module, the photovoltaic plate component and the WIFI connector are positioned on the plastic panel, the multistable cholesteric liquid crystal display module is connected with the photovoltaic plate component and the WIFI connector, and the photovoltaic plate component is connected with the WIFI connector; the multistable cholesteric liquid crystal display module comprises the cholesteric-liquid crystal display, a FPC (flexible printed circuit), a driving IC (integrated circuit), a functional module, an electric energy input connecting point and a WIFI signal input connecting point, the functional module is connected with the driving IC positioned on the cholesteric-liquid crystal display, the electric energy input connecting point is connected with the photovoltaic plate component through a circuit, and the WIFI signal input connecting point is connected with the WIFI connector. The intelligent electronic nameplate is scientific and reasonable in design and can serve as a LCD signboard which is passive, energy-saving, multistable, stable in null field, high in reflection brightness, portable and light for high-end places like high-grade meeting rooms, international markets and airports.

The invention provides an object automatic conversion method and a terminal, and the method comprises the steps: obtaining a first class, containing a conversion identifier, in a data transmission object DTO according to a preset conversion identifier corresponding to the class; judging whether the first class comprises a preset conversion processing identifier or not, if yes, changing the null field in the first class into an empty character string, and creating a corresponding second class in the view object VO through an APT technology according to the changed first class; if not, creatinga corresponding second class in the view object VO through an APT technology according to the first class; obtaining a first increment field of an annotation containing the increment field in the DTOaccording to the annotation of the preset increment field; according to the first incremental field, the corresponding second incremental field in the view object VO is created through the APT technology, so that the DTO is converted into the corresponding VO, the corresponding class and the corresponding incremental field can be automatically converted, and the object conversion processing efficiency is improved.

The invention provides a large-scale airspace use plan conflict detection and relief method based on a grid model. The method grids the airspace environment according to the airspace use plan, and performs grid discrete and digital coding on continuous airspace; The airspace grid built-in attribute of the primary key digitally describes the airspace occupancy relationship; establishes a grid model-based airspace digital description method to realize the grid representation of the traditional airspace shape; establishes an airspace conflict function and uses the grid built-in attributes to calculate and determine multiple airspaces Use the planned conflict airspace; design a 4-dimensional translational airspace conflict resolution algorithm to achieve dynamic resolution of airspace conflicts. The present invention can not only quickly and effectively detect the airspace conflict position and range of large-scale air use plans, but also can solve the airspace relief method online. The whole process is calculated by grid coding, which reduces the computational complexity and effectively improves the computational efficiency.

This invention discloses an intra-frame coding method based on airspace decomposition. The method comprises decomposing I frame into a basic sub-frame and three predication sub-frames, and encoding the four sub-frames orderly, using a quick mode selection algorithm for the base sub-frame to carryout the sub-frame predication, carrying out the sub-frame compensation according to the selected optimum mode, taking the reestablished sub-frame as a reference frame, carrying out the predication and compensation among the sub-frames for the predicated sub-frames, synthesizing the reestablished sub-frames of the four sub-frames, forming the reestablished frame of the I frame. The result of the experiment indicates that the perceived quality of the reestablished frame is better than that of the reestablished frame of the recommended algorithm in the H.264 reference software JM9 when PSNR values are identical.

The present invention provides an object automatic conversion method and a terminal. According to the preset conversion identifier corresponding to the class, the first category containing the conversion identifier in the data transmission object DTO is obtained; and it is judged whether the first category includes the preset conversion Process the identification, if yes, change the null field in the first category to an empty string, and create the corresponding second category in the view object VO through APT technology based on the changed first category; if not, then based on The first category, through the APT technology, creates the corresponding second category in the view object VO; according to the annotation of the preset incremental field, obtains the first incremental field in the DTO containing the annotation of the incremental field; according to The first incremental field, through APT technology, creates the corresponding second incremental field in the view object VO, so as to realize the conversion of DTO into the corresponding VO, and can automatically convert the corresponding class and incremental field, which improves the object conversion processing efficiency.

The invention provides a regulation and control method for a Skyrmion in a hexagonal MnNiGa. The regulation and control method comprises the following steps of 1) applying a magnetic field to the hexagonal MnNiGa, wherein the magnetic field is not strong enough to convert a strip-shaped magnetic domain in the hexagonal MnNiGa into the Skyrmion; and the direction of the magnetic field is not parallel to a family of crystal plane [001] in the hexagonal MnNiGa; and 2) applying a current to or / and heating the hexagonal MnNiGa to enable the strip-shaped magnetic domain to disappear. By virtue of the regulation and control method, a high-density Skyrmion array is formed in the hexagonal MnNiGa material system; and in addition, the high-density Skyrmion can exist in both of a null field and a wide-temperature-range room temperature.

The invention discloses a method and a system for reducing a front-end white screen. The method comprises the following steps: generating an empty message configuration component corresponding to an array and an object; receiving original data of the front-end interface, and identifying the structure and the type of the original data; judging whether a null field or an underfield field exists in the original data or not; if the null field or the underfield field exists, performing configuration according to the type to which the null field or the underfield field belongs and an empty message configuration component; and the null fields or the underfield fields of different types are converted into the fields of the same type. According to the method and the system, by designing a data configuration rule and a data formatting algorithm, an access invalid object which is transmitted by a front end and causes a white screen is converted into an expected format, so that even if null judgment processing is forgotten to be carried out, a wrong white screen result cannot be obtained.

The embodiment of the invention discloses a data storage method and device, a storage medium and a server. The method comprises the steps of obtaining target data; filling in target data with null field information based on the non-null field information corresponding to the same key field, and adding identification information about whether the target data is changed data or not to the target data according to the filling operation, wherein the field information of the target data with null field information is the same as the field information corresponding to other key fields of the targetdata to which non-null field information belongs; merging the target data with the same field information corresponding to all the key fields in the target data after the filling operation is executed, and determining the type information of the merged target data according to the identification information and the source of each piece of target data in the merged target data; and storing the merged target data according to the type information. Through the scheme, the resource consumption of data storage can be reduced, and the availability of locally stored data during data storage is ensured.

The invention relates to a great-throughput photocatalytic wastewater degrading device capable of multi-stage interception of catalyst, and belongs to the technical field of wastewater treatment. In the existing associated technology, problems that microwave energy is wasted, single-tank wastewater throughput is smaller, oxygen supply concentration ratio of a key area is not enough, catalyst particle interception link is weaker, degradation reaction ending point moment is difficult to distinguish, catalyst aggregates cannot be in situ strongly dispersed, catalyst aggregation cannot be timely observed exist, and the scheme is used for solving the series of problems. The structure of the device limits a microwave irradiation null field, permits a reactor to greatly expand capacity; the structure of the device is beneficial to strengthened supply of air atmosphere in the key degradation reaction area, suitable for precisely intercepting catalyst particles, capable of strongly dispersing the catalyst aggregates while ultrasonically cleaning a quartz tube, capable of instantly switching off an associated power supply at the degradation ending point, and capable of warning catalyst aggregation trend.

A method for splitting hot and cold data of mobile development includes the following steps: the server and client contract hot and cold data, define cold data and generate unique identifiers, when the client first requests data from the server, the server receives the client's request, and return thermal data, cold data and the unique identification of cold data to the client, when the client's request is received again, the server obtains a unique identity for decryption, record request time stamp, the change record corresponding to the unique identifier is queried, if there is only one, returns a null field directly, the client end does not process, if there are more than one, comparing the latest change record with the record corresponding to the current request time according to the time stamp, and the server returns the changed field to the client end and saves. The invention enables the user to quickly respond to each page operation, enables the user to use less flow, and thus improves the user response.