43 results about "Continuous transformation" patented technology

The invention discloses an amphibious robot with a transformable structure. According to the amphibious robot, a six-foot transformable structure is adopted, so that the movement mode of the robot is flexible and variable, the functions of wheeled quick movement, bionic crawling movement and water surface navigation movement are achieved, and the three kinds of functions are respectively applicable to flat pavement, rugged pavement and water surface navigation conditions; the environmental adaptability of the amphibious robot is strong, smooth transition in water and land environments is realized, the requirements of the robot on multi-movement-mode continuous transformation for land movement and water surface movement in an amphibious environment are met, and the rapidity and coordination of movement of the robot are guaranteed; the amphibious robot adopts an embedded propeller wheel, so that the problem of power conversion of the robot in a land-to-water-surface switching process is solved, propeller blades can be effectively protected in land movement, power can be provided for water movement of the robot, the additionally arranging of additional underwater propulsion equipment is avoided, and sustained and stable work in water and land transformation media is realized.

The invention discloses a process for preparing coal water slurry or the mixture of coal water slurry with alkaline metal and / or alkaline earth oxides or hydroxides by the method of low level coal continuous transformation in subcritical or supercritical water which comprises, conducting continuous high pressure conveying of coal water slurry, charging into reaction system, usting the peculiarity of the hypercritical water to extracting and pyrolising low grade coal, converting it into useful product in gas, liquid and solid forms.

The invention discloses a soil body displacement field visualization testing device used in the pile sinking process and a using method. Transparent soil is formed by compounding the mixed liquid of n-dodecane and fifteenth white oil with baking silica sand; in the pile sinking testing process, the soil body around a pile is cut through a laser to form a bright internal soil body particle section, a CCD camera is used for shooting the section right opposite to the CCD camera, a series of images of the section is acquired, the continuous transformation characters of the interior of the soil body are obtained based on the particle image processing technology, and the un-embedding visualization measuring on the interior continuous transformation, caused in the pile sinking process, of the soil body around the pile is achieved. By means of the technical method, the problem of measuring on the interior continuous transformation of the soil body around the pile in the pile sinking process is solved. The soil body displacement field visualization testing device is high in operability, simple, portable, economical, practical and high in measuring precision.

The invention discloses a quantization coefficient encoding method used for predicting a residual error transformation coefficient in a video signal. In the method, a selection signal of dQP and a selection signal of a quantization matrix are determined by the number of transformation quantization coefficient and are transmitted after the transformation quantization coefficient. An encoder and a decoder define a constant threshold value. If the number of nonzero quantization coefficients of a plurality of continuous transformation blocks is more than the threshold value, the encoder encodes a selection signal of the dQP or the quantification matrix in a code stream after encoding the nonzero quantization coefficients, wherein the selection signal indicates the QP or the quantification matrix used by the plurality of continuous transformation blocks. Thus, the decoder may calculate the number of the nonzero quantization coefficients so as to accurately decode the selection signal of the dQP or the quantification matrix.

The invention discloses a method for predicting and simulating a network public opinion in an emergency based on an SOAR model. The method comprises the steps of based on the SOAR model, taking net citizens as agents, and taking a net citizen group behavior transformation process in the network public opinion as a continuous transformation process of state with time in a public opinion problem space; in combination with network public opinion development and government response related theories, dividing a net citizen group into Me-formers and In-formers, and dividing a network public opinion development phase into generation, bursting, ripening and attenuation; designing working memory, long-term memory, decision-making process and learning mechanisms of the net citizen agent; constructing a net citizen group behavior transformation rule base; and establishing a net citizen group behavior transformation SOAR agent model based on the SOAR model. The attenuation phase in the network public opinion development process is taken as an example, the prediction and simulation for the network public opinion in the emergency are realized, and thus the influence of different government responses on different types of net citizen group behaviors is evaluated by the method.

A parameter error accumulation based gear system performance reliability degree calculation method comprises the following steps of 1 determining assembly parameter type; 2 determining sensitivity parameter type; 3 performing sensitivity parameter response surface analysis; 4 calculating gear system performance reliability degree. The parameter error accumulation based gear system performance reliability degree calculation method overcomes the shortcoming that a traditional performance reliability degree calculation method does not give full consideration to assembly accumulation error influence, a coordinate is established for a gear system model and model offset and rotation processing is performed to enable a model assembly mode to approximate to the actual situation, and continuous transformation of model assembly sensitivity parameters within an error range is achieved. Stress simulation of each group of design points is automatically performed after other simulation conditions are controlled by software, consistency of the conditions is ensured, and meanwhile calculation efficiency is also improved. Safety factor distribution of a gear system in different assembly modes is determined through response surface analysis, accordingly performance reliability degree is determined, simulation times are decreased, and efficiency is improved.

The invention discloses a method and a system for identifying a human face in video play, wherein the method comprises the following steps: A. constructing a diversity face database based on time domain continuous transformation; B. improving the depth learning facial feature extraction network to train a depth learning model base on time domain variability; C. performing face recognition throughfeature extraction and model classification. The face recognition method in the video playing of the invention constructs a diversity sample library with continuous change of time sequence, adds a GDCConv depth neural network learning unit, and reduces the influence of face angle deflection, expression, illumination on face image feature extraction. Finally, the identification information can be further confirmed by joint feature matching and model classification, which can effectively improve the accuracy of video face recognition.

The invention discloses a method for constructing a financial risk control knowledge map, which collects data of financial data through a crawler technology and performs word segmentation processing.Extracting knowledge from financial data using deep confidence networks, including entities and inter-entity relationships and attributes; taking The target entity as a knowledge map node, and obtaining and storing the financial risk control knowledge map in a Neo4j map database. The invention can make full use of the continuous transformation from data to knowledge, quickly integrate the financial data from different sources through the construction of the financial risk control knowledge map, and construct an anti-fraud engine to quickly and efficiently identify financial fraud cases.

The invention discloses a cross-domain variational adversarial self-coding method. The method comprises the following steps: 1) decoupling content coding and style coding of cross-domain data by usingan encoder; 2) fitting a content code and a style code of the image by using a countermeasure operation and a variation operation respectively; and 3) realizing image reconstruction by splicing content codes and style codes, and obtaining one-to-many continuous transformation of the cross-domain image by splicing the content codes and the style codes of different domains in a cross manner. According to the method, one-to-many continuous transformation of the cross-domain image is realized on the premise of not providing any pair of data.

The invention provides a method for preparing an organic zinc enzyme preparation. The method comprises the following steps of: mixing materials such as bran, bean pulp, powdered rice hulls, solution of zinc sulfate and the like to obtain a mixture, stirring uniformly, then performing high-temperature high-pressure sterilization, inoculating a koji plate strain of Candida utilis after the sterilization, stirring uniformly and then culturing, then taking a cultured material out, inoculating a koji plate strain of Aspergillus usamii, culturing again, taking a subcultured material out, inoculating a koji plate strain of bacillus subtilis, stirring uniformly and then culturing for the third time, and oven-drying and crushing a material obtained by the culturing for the third time to obtain the organic zinc enzyme preparation. In the method, a production technology is simple, the production cost is low, the three bacteria are adopted for three continuous transformations, and the transformation ratio from inorganic zinc to organic zinc is up to over 98 percent. The prepared enzyme preparation integrates organic trace elements, an enzyme preparation and probiotics into a whole, and can increase the disease resistance of raised animals and promote the healthy growth of the raised animals.

The invention provides a space-frequency domain gradient metamaterial and a design method thereof. The design method comprises the steps of: firstly, calculating a spatial gradient and a frequency gradient of the space-frequency domain gradient metamaterial in an operating frequency band according to specific functional requirements; secondly, determining a reference unit and carrying out simulation to obtain a phase response curve thereof; sequentially superimposing the one-dimensional spatial gradient and the frequency gradient to a phase curve of the reference unit to obtain a group of phase curve set satisfying requirements; and sequentially superimposing the spatial gradient and the frequency gradient in an orthogonal direction to each phase curve again when in need, and finally carrying out simulation to obtain a one-dimensional or two-dimensional metamaterial unit group. The space-frequency domain gradient metamaterial with the phase gradient changing with frequency is obtainedthrough combining the spatial gradient and the frequency gradient, continuous free regulation and control of electromagnetic waves can be realized, and various functions in the operating frequency band can be realized, for example, flexible scanning of the electromagnetic waves in one-dimensional and two-dimensional spaces in a passive situation and continuous transformation of vortex wave modes.

The invention belongs to the field of biotechnology, and particularly relates to a method for transforming a bacillus genome. According to the method, adaptability is high (plasmid transformation difficulty is low, pBTS plasmids can be replicated in various gram-positive bacteria, and genomes of various bacteria can be transformed), the same strain can be transformed repeatedly (a recombinant plasmid has two homologous recombination fragments, homologous recombination happens twice in sequence, the strain is likely to return to be of a wild type after the second time of homologous recombination, or a transformed strain is obtained after the second time of homologous recombination, and no fragment affecting continuous transformation such as a resistance maker and a plasmid replication element is left ), and genes having great influences on bacterial growth can be transformed (cre recombinase and a second kind of resistance maker system are introduced, the transformed strain obtained through the second time of homologous recombination can be screened based on resistance, wild type strain with high viability can be killed, then cre recombinase is expressed, the second kind of resistance maker is cut off, and residual fragments do not affect further strain transformation).

The invention discloses a method for controlling the mutual transformation between calcite and vaterite by using a calcium source concentration. The method comprises the following steps: inoculating S. pasteurii on a medium; preparing a nutrition salt solution of urea and calcium acetate monohydrate; preparing a urease solution, and adding the urease solution into the nutrient salt solution; adding the bacteria solution into the urease and nutrient salt mixed solution; performing ultrasonic treatment at 20-40 DEG C for 30 min-1 h to obtain a suspension; pouring the suspension into a centrifugetube, performing centrifugation at 4000 rpm, pouring off the supernatant liquid, and adding deionized water for washing; washing the unreacted calcium acetate monohydrate away; and placing the whiteparticle precipitate after centrifugation in a drying box for drying to obtain calcium carbonate with different compositions and morphology. According to the method, the calcium source concentration is only changed, the continuous transformation of calcium carbonate from the calcite structure to the vaterite structure is realized, calcite and vaterite coexist in a certain range of the calcium source concentration, the requirements on environmental conditions are low, the other used reagents are environment-friendly, and the experimental results are highly repeatable.

A method for modifying a sound signal, the method comprising: a step of obtaining time frames of the sound signal, in the frequency domain; for at least one time frame, applying a first transformation of the sound signal in the frequency domain, comprising: a step of extracting a spectral envelope of the sound signal for the at least one time frame; a step of calculating frequencies of formants of the spectral envelope; a step of modifying the spectral envelope of the sound signal, the modification comprising application of an increasing continuous transformation function of frequencies of the spectral envelope, parameterized by at least two frequencies of formants of the spectral envelope.

The present invention provides a multiple-input-multiple-output continuous sine scanning frequency vibration test method and system. The method comprises the following steps of: identifying an inversemultistep prediction model of a multiple-input-multiple-output continuous sine scanning frequency vibration test system, and setting parameters of the multiple-input-multiple-output continuous sine scanning frequency vibration test; performing low-degree trial test; and recovering a normal degree to complete the multiple-input-multiple-output continuous sine scanning frequency vibration test. Themultiple-input-multiple-output continuous sine scanning frequency vibration test method and system achieve the generation of continuous sine scanning frequency excitation signals to achieve continuous transformation of the scanning frequency signal frequency and perform control of the amplitude and the phase of response signals. Through the test method and the test system, a more accurate test result is obtained so as to provide more efficient reference data for development and production of tested products.

The invention discloses a waveform continuous transformation method for reducing switching frequency. The method is applied to a power transform system, and comprises the following steps: according to a control mode and preset parameters of the power transform system, determining an actual output frequency value F of the system, calculating omega=2 [pi]F, and obtaining a DC bus voltage Ud and an output line voltage peak Ulp of the power transform system; comparing the DC bus voltage Ud and the output line voltage peak Ulp, determining three-phase output phase voltage algorithms according to the comparison results, and obtaining output phase voltage modulation wave; and carrying out PWM conversion on the obtained output phase voltage modulation wave to obtain switch action output of each power electronic device of an inverter bridge. The method can reduce switching frequency of each power electronic device by 1/3 under the condition of keeping inverter bridge output line voltage be a sine wave, thereby greatly reducing switching loss without causing distortion of the output line voltage, and reducing output harmonic wave.

The invention discloses a static star simulator capable of achieving magnitude continuous transformation and sky background continuous adjusting.The static star simulator is composed of a collimation optical system, a beam splitter prism, a star point reticle, a background reticle, a star point light source, a background light source and a ground support.The star point reticle is located on a first focal plane of the collimation optical system.The background reticle is located on a second focal plane of the collimation optical system.After action of the beam splitter prism and the collimation optical system, star point magnitude adjustable starry sky images can be overlaid under the convertible background illumination in a parallel light form.

A device for inputting Chinese characters according to the present invention is a Chinese character inputting device for inputting Chinese characters into an information communication terminal and comprises: character keys which use each stroke in [] that are the components of the character system ‘’ as basic graphemes, which consist of a plurality of keys for allocating graphemes formed through continuous transformation from the basic graphemes, and which are for inputting graphemes corresponding to the manipulation of one or a plurality of the keys in time series order; a selection key that enables the selection of one of the graphemes or Chinese characters that can be formed by manipulating the character keys; a storage unit that stores the graphemes, characters and Chinese characters formed of at least two or more graphemes that are coupled according to a set sequence; a control unit that searches the storage unit for graphemes inputted through the character keys, characters and Chinese characters formed through the coupling of at least two or more graphemes, and Chinese characters selected through the selection key, and generates the searched graphemes, characters, and Chinese characters; and a display unit on which the graphemes inputted through the character keys, the characters or the Chinese characters selected through the selection key, and the graphemes, the characters, and the Chinese characters generated by the control unit are displayed.

The invention relates to the technical field of rockets, in particular to a rocket engine thrust chamber testing method. The method comprises the steps that starting operation is conducted on an engine; a propellant channel of the engine is filled with a propellant with an initial pressure value, and the initial pressure value of the propellant is smaller than a maximum opening pressure value of apropellant valve; continuous transformation is conducted on the pressure value of the propellant in the propellant channel, the range of pressure values of the engine under different working conditions in a thrust chamber test is covered with the continuous transformation pressure value range, and data under the working conditions corresponding to the different propellant pressure values are measured; and continuous transformation is conducted on the pressure value of the propellant in the propellant channel till the pressure value of the propellant is smaller than the maximum opening pressure value of the propellant valve. Therefore, testing in different working condition ranges of the engine can be achieved by adopting a conventional propellant valve, a high-pressure valve matched witha high-pressure propellant scheme does not need to be separately designed or purchased, the testing cost is reduced, and the testing period is shortened.

The invention discloses a portable apparatus for measuring the dielectric property of a large-test-piece elastic material in a non-linear stretching state. The portable apparatus comprises a base, the base is provided with a lower flat plate used for placing a flat plate sample, an upper flat plate used for being attached to the lower flat plate and compressing the flat plate sample is fixed on the base, and the lower flat plate is arranged in a groove arranged on the upper surface of the base and is driven to perform one-dimensional movement in the groove by a horizontal screw rod connected to one end of the lower flat plate. According to the portable apparatus, the upper surface and the lower surface of the sample are fixed via a clamp, and non-linear stretching of the sample can be realized via the movement of the clamp. The conventional measuring device can only test the performance of the sample in the non-linear stretching state or perform linear stretching of the sample by employing the conventional clamp and test the dielectric property (space charge characteristic, resistivity characteristic, and dielectric property etc.) of the sample, the apparatus provides important theoretical values for the change mechanism of the dielectric property of the research material in the stretching state or the non-linear stretching state and important engineering application values for further improvement of the design structure of cable accessories, accurate control of the stretching length can be realized via the control of the screw rod, and continuous transformation of the stretching rate of the same sample can be realized.

The invention relates to a dust sensor based on a continuously changing barrier layer. It belongs to the field of electronic technology. The main technical problem it solves is to overcome the insufficiency of the existing photoelectric sensors that directly contact the smoke and dust. It consists of upper film rotation shaft, upper slave rotation shaft, infrared sensor, lower film rotation shaft, lower film driven shaft, infrared light-emitting tube, upper film, lower film, upper opening, lower opening, sampling flue wall, sampling smoke It is composed of a duct, a flue, a single-chip microcomputer, an analog-to-digital conversion module, an operational amplifier, a relay, a triode, an upper film rotating motor, and a lower film rotating motor. The upper film, the upper opening, the sampling flue, the lower opening and the lower film are connected with the infrared light-emitting tube, the lower film rotating shaft is connected with the lower film driven shaft through the lower film, and the upper film rotating motor and the lower film rotating motor are connected by a relay , transistors, resistors, connected with the microcontroller. It is mainly used in the field of high-voltage electrostatic dust removal.

The invention discloses a method for efficiently transforming immobilized streptomyces griseus cells to prepare corydalmine. The method comprises the following steps: culturing streptomyces griseus with a collection number of ATCC-13273 by a fermentation culture medium, pre-treating a polyurethane foam carrier, culturing and immobilizing cells and efficiently transforming immobilized streptomyces griseus ATCC-13273 cells to prepare the corydalmine. The method disclosed by the invention solves the problems that the corydalmine prepared by an existing non-immobilized cell transformation method is long in transformation period, low in transformation substrate feeding concentration and low in corydalmine transformation yield. And moreover, the cell immobilizing method is simple, and low in cost; the immobilized cells can be repeatedly used to realize continuous transformation preparation of the corydalmine, and therefore, the method has good economic benefits.