495results about How to "Method is feasible" patented technology

An optical system which includes some or all of the following parts: a laser light source which illuminates a spatial light modulator such that optical characteristics are preserved; a stereoscopic display which has a polarization-switching light source; a stereoscopic display which includes two infrared lasers, two optical parametric oscillators, and six second harmonic generators; two light sources processed by two parts of the same spatial light modulator; a method of assembly using an alignment plate to align kinematic rollers on a holding plate; an optical support structure which includes stacked, compartmented layers; a collimated optical beam between an optical parametric oscillator and a second harmonic generator; a laser gain module with two retroreflective mirrors; an optical tap which keeps the monitored beam co-linear; an optical coupler which includes an optical fiber and a rotating diffuser; and an optical fiber that has a core with at least one flat side.

The invention discloses a panorama-based panoramic virtual tour method. The method comprises the following steps of: splicing and generating a panorama on the basis of image characteristic detection technology and low-noise image fusion technology; removing black edges from the panorama; and implementing an algorithm of an efficient panorama browser and the like. In the steps of characteristic detection, characteristic matching, mismatch removal, parameter optimization, image fusion and the like of panorama splicing technology, algorithms, such as scale invariant feature transform (SIFT), random sample consensus (RANSAC), k-d tree, Bundle Adjustment and the like are improved and applied to achieve a high processing speed and a vivid virtual tour effect. The method has a high practical value.

The present invention provides a selectively thermally transferable blend capable of forming the emissive layer of an organic electroluminescent device. The blend includes a light emitting polymer and an additive selected to promote selective thermal transfer of the blend from a donor element to a proximately located receptor substrate.

The invention provides a personalized dynamic real time navigation method, and relates to the GPS navigation field. The method comprises the following steps: a navigation terminal generates a path programming request and sends the path programming request to a navigation server; the navigation server generates an optimal path according to road network data, real time road condition information and user preference, and returns the optimal path to the navigation terminal; the navigation terminal periodically sends its own GPS position to the navigation server after navigation begins; and the navigation server sends a path update message to a corresponding terminal according to triggering conditions until navigation ends. The invention also provides a navigation system for realizing the personalized dynamic real time navigation method. The navigation system comprises the navigation terminal and the navigation server. The navigation method and the system thereof enable the navigation terminal to dynamically navigate according to the user preference and real time traffic information in order to guarantee that a vehicle runs according to the optimal path. The method and the system reduce the data traffic load, and time and energy consumed for data processing, so the method is feasible and is easy to popularize.

The invention relates to a three-dimensional gesture determining and local positioning method of a lunar surface rover, which comprises the following steps: (1) ascertaining the rolling and pitching angles by use of a triaxial accelerometer with sensitivity while the rover is still; (2) determining the drift angle gesture by means of a sun sensor; (3) using the axial gesture and the gyro deviation as the state quantity, the rolling and pitching angles established by the triaxial accelerometer, the drift angle determined by the sun sensor as well as three gyro outputs as the measuring information, building a state equation and a measuring equation, and estimating the triaxial and gyro deviations by means of extended Kalman filter; (4) after compensating the gyro outputs by virtue of the estimated gyro deviations while the rover is in motion, calculating the gesture changes of the rover, finishing the preestimation of the gyro gesture, and fulfilling gesture update; (5) acquiring the information about the rotation speed of the driving wheels of the rover, the rotating angle of the steering wheel, the rotating angle of the left and right rocker arms, and getting the position increment of the rover in the body coordinate system by use of the forward kinematics relationship. The invention has the advantages of high precision of gesture determining and positioning, simple calculation and easy implementation of the engineering.

The invention discloses a method for recovering vegetation on a strong-acid tailing waste land without soil. The method is characterized by comprising the following steps: A. performing early-stage preparations, and draining off water; B. changing the pH value of the land; C. culturing the fertility of the tailing waste land; D. screening and culturing plant varieties; and F. managing transplanted seedlings. The method has the advantages that by adopting the method for recovering the vegetation without soil, disturbance to the tailing land is reduced, and the purposes that water can be drained off, the influence of acid water to the vegetation can be alleviated, the heavy metals can be stabilized, and the living environment of plants is improved are achieved. In addition, according to the method, the cost is low, the effect taking is rapid, the effect is good and the operability is high.

The invention relates to a method for processing mixtures of carboxylic acids obtained as hydrolysis products of suberin and cutin, particularly suberin and cutin isolated from birch bark, to give oligo- and polyesters, or corresponding ester-ethers, as well as the use of the products thus obtained as lubricants, fuel components, plasticizers, surface active agents, environmentally friendly agents for modifying wood, binders in coatings, adhesives, printing inks and composites, further in various cosmetic applications.

The invention relates to a method for reproducing tobacco leaves by a paper-making method through bamboo pulp fibers instead of wood pulp fibers and belongs to the field of tobacco leaf reproduction. The method comprises a step a of preparing the bamboo pulp fibers, a step b of preparing a coating solution, a step c of manufacturing paper with pulp on a film base and a step d of preparing the reproduced tobacco leaves by the paper-making method, and particularly comprises the following steps of: boiling aired large dendrocalamus giganteus to prepare bamboo slurry, and carrying out deoxidization treatment to obtain deoxidized bamboo pulp; uniformly mixing 40% of a tobacco stem extract, 55% of fragment / tobacco powder mixed extract and 5% of flavors and fragrances in mass percentage to obtain the coating solution; mixing 45% by mass of tobacco stem residual dreg initially-milled pulp with the beating degree of 8-degree SR and 45% by mass of fragment and tobacco powder mixed residual dregs to obtain the film base; adding 10% by mass of deoxidized bamboo pulp fibers, and mixing uniformly and grinding; preparing the film base after the beating degree is 35-48-degree SR; carrying out conventional coating on the film base prepared by the step c by utilizing the coating solution prepared by the step b, and drying; controlling the water content of a finished product to 10-12%; and slicing for future use. The method disclosed by the invention has the advantages of simple and feasible method and stable quality of the reproduced tobacco leaves.

The invention discloses a device and a method for detecting the sealing property of a sealing element. The device comprises a steam generating device, wherein the steam generating device comprises a lower module with an inner cavity and an upper module arranged on the lower module; the sealing element to be detected is arranged between the upper module and the lower module; and a steam generating chamber is formed by enclosing the lower module, the sealing element to be detected and the upper module. The steam generating device also comprises an emptying valve, a heater, a weighing device and a control system, wherein the weighing device is used for weighing the steam generating device; the control system is used for acquiring and analyzing environment information in the steam generating chamber and controlling the heater to heat the inner cavity according to the analyzing result and comprises a computer and a sensor which is arranged in the steam generating chamber; and the computer is in signal connection with the sensor and the heater respectively. The device of the invention detects the weight change of the steam generating device within a certain period of time by adopting a weight loss method so as to calculate the leakage rate of the sealing element. The method is simple and feasible and the measuring result is accurate.

A coating device for coating a medical device with a drug-eluting material uses an in-process drying station between coats to improve a drug release profile. The drying station includes a heat nozzle configured for applying a uniform drying gas.

The invention discloses a method for controlling the synchronous degradation of each layer of a co-extrusion composite film by utilizing the same biological base. Aiming at the co-extrusion composite film which is in three layers or more than three layers, a biological active additive 'EcoPure' is used as the biological base. The method is characterized by comprising the following steps of: calculating a weight proportion relationship between carbon contents of each layer of the co-extrusion composite film first, then determining the addition concentration of the biological base of each layer according to the weight proportion relationship between the carbon contents of each layer in extruded polymer of each layer before the preparation, and making the degradation rate of each layer of the co-extrusion composite film be accordant. The method disclosed by the invention has the contribution of having a predictable control ability for the biological degradation process and the degradation rate of multi-layer co-extrusion composite film which is composed of different polymers; and by balancing the concentration of the biological base, the biological degradation rate which is suitable for the final processing environment is provided, and the appearance, the function and the physical and mechanism performance of a product before being discarded are ensured to be unchanged.

The invention relates to a method for directly machining turbine blade air film irregular holes through laser. Core content of the method includes utilizing characteristics of a two-dimensional numerical control rotation laser machining head and applying a real time control protocol (RTCP) function of a multi-shaft numerical control laser machine configured with the two-dimensional machining head, namely rotating function around the cutter central point, and achieving direct automatic machining of once clamping and laser location of the irregular holes (including hopper-shaped inlets and cylindrical outlets) inclined on the surface of the material. The method overcomes the shortcoming of the prior secondary machining mode. The method conducts experimental verification, obviously improves efficiency and accuracy for machining the irregular holes and has practical conditions. The method is not only applied to aircraft engine manufacture but also popularized and applied to civil products like gas turbines.

The invention discloses a method for easing distributed denial of service attacks, which solves the defects in the prior detection or defense technologies. The method provided by the invention comprises the following steps of: presetting a group of regional scope presented by an IP (Internet Protocol) address block, and a threshold of the number of messages of a protocol type or a message property allowed by each sub-region in the regional scope; when receiving one message of the corresponding protocol type or message property, searching the sub-region to which the message belongs according to a source IP address; if a cv (current value) of the number of the messages of the protocol type or message property corresponding to the sub-region to which the message belongs is more than 0, subtracting 1 from the cv, and further processing the received messages regularly according to the protocol type or message property; if the cv is equal to 0, or directly discarding the messages or discarding the messages after recording related information of the messages; aiming at the request on easing different types of distributed denial of service attacks, concurrently executing different recovery processing for the cv of the number of the messages of the corresponding protocol type or message property in corresponding sub-region within a given scope. The method is used in an IP network.

The invention discloses a magnetic separating method for improving the recovering effect of the fine-grained magnetic materials, which is characterized in that the materials rotate along with a separating drum in the separating drum and are separated under the common action of rinse water, wash water and the gradient of the separating drum. A magnetic separator for realizing the method is characterized in that a rack [2] is provided with a magnetic system [9] and the separating drum [8] driven by power [1], the included angle between the separating drum [8] and the horizontal plane is 6-20 degrees, a feeding device [11] is arranged on the upper part of the front end of the separating drum [8] and a discharging device [4] is arranged on the lower part of the tail end of the separating drum[8], a rinsing water pipe [5] and a washing water pipe [10] are arranged in the separating drum [8], a material receiving chute [7] is arranged below the washing water pipe [10] and is connected withthe discharging device of the magnetic materials. The method of the invention is feasible, the equipment is simple, the purity of the magnetic materials is improved by 10-20% and the yield is improvedby over 10%.

An automatic ortho-rectification method based on a remote-sensing image of an environmental No.1 satellite comprises the following steps of: (1) eliminating projection distortion caused by ground fluctuation in a reference image according to a geometric projection transformation principle to generate a simulated projection image; (2) finding possible feature points in the reference image and an original image by utilizing a Harris corner extraction algorithm; (3) finding possible homonymy points on the basis of the step (2) with a correlation coefficient method; (4) solving a relation coefficient between the reference image and the original image by using a polynomial model based on least squares; and (5) correcting the original image by utilizing the relation coefficient between the reference image and the original image, and eliminating the distortion caused by the ground fluctuation according to the geometric projection transformation principle again, so as to finally finish ortho-rectification. The method has the characteristics of high automation degree, no need of manually selecting control points, high correction precision and high production efficiency.

The invention discloses a MR (Measurement Report) data indoor and outdoor separation method based on a statistic model. The MR data indoor and outdoor separation method comprises the steps of: aiming at MR sampled data of each cell of an outdoor macro station, carrying out characteristic value statistics of received signals, which comprises statistics of a main cell level; and carrying out separation of a mixed Gaussian distribution and probability calculation, and according to an indoor probability, obtaining a corresponding indoor and outdoor separation result. Moreover, the MR data indoor and outdoor separation method supports combination of various factors of the main cell level, a main and adjacent level difference, the number of adjacent cells and the like, and by a combined model, an indoor and outdoor judgment result is judged and output; and judgment methods at other angles also can be integrated. According to the MR data indoor and outdoor separation method disclosed by the invention, data characteristics which are shown by signal intensity and a signal number of the MR data in a statistical sense and are combined by two indoor and outdoor normal distributions are utilized, and probabilities that different signal intensity and different signal numbers occur in a door or outside a door can be calculated, so that the method of separating the MR data according to signal characteristics is more feasible, and accuracy of indoor and outdoor separation of the MR data is improved.

The invention provides a triple-redundancy 1553B bus dynamic switching method, which includes the following steps: S1, a triple-modular redundancy bus network computer system architecture is built; S2, a redundancy bus configuration method is designed, a bus A for communication is a main bus by default, a first redundancy module is a on-duty module by default when the computer system is powered on, a first bus chip is configured in a BC mode, and a second bus chip and a third bus chip are configured in an MT mode; S3, a bus fault diagnosis method is designed for triple-modular bus real-time fault identification; and S4, a triple-redundancy bus mode composed of a BC mode and two MT modes is reestablished according to the on-duty module switching principle. A spacecraft computer requiring high real-time performance and reliability can determine a triple-redundancy bus fault by using the serial timing characteristic and the information monitoring function of buses. The method is easy to implement, runs reliably, is not affected by the external environment, is quick, and can be easily used in engineering.

Disclosed is a surface aircraft seakeeping whole-machine power model water basin test method. The method comprises the test steps of a, installation of a whole-machine power model and a test device; b, installation of a data collecting device; c, basin test of the whole-machine power model. After finishing the test steps, data analyzing personnel can firstly analyze the validity of collected data, deletes invalid data and records content including the angle of deflection of flaps, the angle of deflection of an elevator, the weight and the center of gravity of the test model, the speed of a trailer during the test, the mean value of a resistograph and the amplitude of a gyroscope (13), a displacement meter (11) and an acceleration sensor (14). The surface aircraft seakeeping whole-machine power model water basin test method has the advantages of being practical, feasible, simple in operation and reliable in test results.

A measuring point arrangement method suitable for hypersonic flight test transition research is disclosed. The measuring point arrangement method is achieved through the following modes: S1, determining whether the natural transition or the forced transition is to be measured according to measurement requirements, and if the natural transition is to be measured, then going to S2; if the forced transition is to be measured, then going to S3; S2, measuring a main flow transition condition and / or a transition condition of a cross flow effect according to measurement requirements, wherein when themain flow transition condition is measured, a measuring point is arranged on a streamline of a hypersonic aircraft in the main flow direction; when the transition condition of the cross flow effect is measured, the measuring point is arranged at a position with a cross flow velocity in the lateral direction; the main flow direction is the central streamline direction of the aircraft and the streamline direction with an included angle of not more than 3 degrees with the central streamline direction; S3, arranging a rough element at a predetermined position on the aircraft, and arranging the measuring point at the downstream of the streamline where the rough element is located; and the measuring point positions realize the measurement of the physical quantity of the surface of the aircraftin the flight test process by installing sensors.

The invention relates to a hemispherical resonator gyro high-reliability oscillation starting system and method, is suitable for oscillation starting control of hemispherical resonator gyro or oscillation gyro having similar working principles and belongs to the technical field of inertia instrument control. By utilizing frequency selecting characteristics and high-Q-value characteristics of a hemispherical resonator gyro harmonic oscillator, a frequency sweep oscillation starting module can constantly output frequency signals around resonant frequency to excite the harmonic oscillator to start oscillation when no resonant signal is detected, so that the harmonic oscillator can be ensured to start oscillation, and reliability is high.

The invention discloses a variable-air-rate air conditioner indoor temperature-humidity control method based on absolute humidity. For the summer working conditions, combined cascade double-closed-loop control is adopted for the temperature and humidity control; according to a humidity control link, the air supply dew point is changed by adjusting the opening of a chilled water valve through an inner ring, and the room humidity is adjusted by changing the dew point set value through an outer ring; according to a temperature control link, the air output is changed by adjusting a terminal air valve, and the temperature control is achieved; for the coupling between the relative humidity and temperature, dew point dehumidification is conducted by introducing the absolute humidity; and for the coupling phenomenon between a temperature control loop and a humidity control loop, different correction coefficients are introduced into the control loops for decoupling and coordination, and the unification of the comfort and economic energy saving are achieved.

The invention discloses a method for on-line monitoring er'eying by combining tunable laser light spectrum with flying time mass spectrum. It installs laser absorbing component and detector of a tunable laser light spectrograph on two opposite sides of pipeline diameter of a tested burning system, respectively, the gas is firstly detected by the laser absorbing component, the working current of a laser is regulated to 20-30A, the working length of the laser light is regulated to 112-281m, the gas to be detected is locked and after passing the detector, enters in the flying time mass photograph for detecting, a precursor is on-line detected in a selectively ionizing mode, then on-line concentration of er'eying total by the equivalent relation between fixed precursor and er'eying total. It is convenient to operate, strongly adaptive, not influenced by the dust in measuring environment, and able to quickly, accurately and real-timely monitor the concentration and toxic equivalent of trace pollutant er e ying.

A method for representing single-crystal Ni-base alloy creep resistance comprises the steps of building a creep curve model suitable for single-crystal Ni-base alloy creep characteristics; determining model parameters to obtain a creep curve equation; performing creep data regression to obtain a fitting creep curve for describing a creep process; obtaining a creep rate equation, obtaining the minimum calculation creep rate and calculating a creep rate curve; combining specific requirements for representing the single-crystal Ni-base alloy creep resistance.Various single-crystal Ni-base alloy creep curves under constant temperature and constant stress except the extremely-high temperature or extremely-high stress and creep rate distribution can be accurately expressed; the corresponding relations of various creep curve equation items and creep parameters and alloy creep curves is revealed; the problem that some alloy cannot represent creep characteristics easily through the creep activated energy and stress indexes is solved; and the method is of great importance in further knowing the creep characteristics and rules of single-crystal Ni-base alloy.

The invention relates to a method for obtaining geometrical parameters of typical terrains in a digital map. The method includes the steps of terrain classification and recognition, terrain simplification, extracting of the geometrical parameters of the terrains and the like. According to the digital map in the GeoTIFF format in the ASTER GDEM type, by means of an ArcGIS tool, the normalized elevation, the normalized gradient, the normalized gradient variability, the normalized curvature and the normalized terrain undulation are calculated, iterative selforganization (ISO) unsupervised clustering is carried out with the obtained parameters as characteristic indexes, and the preliminary classification of the terrains is obtained; then the terrains are classified into the plain, the hill, the low mountain, the medium mountain, the high mountain and the like according to the average undulation of the various terrains; the geometrical parameters such as the positions, the bottom faces and the heights of the typical terrains are finally obtained. The method has the advantages of being feasible and practical.

The invention discloses a vacuum centrifugal casting method with low sucking rate, which comprises the steps of closing a mold, vacuumizing and centrifuging, casting and demoulding, and is characterized in that: in the step of vacuumizing, a molding mechanism which hermetically rotates is vacuumized; and the molding mechanism comprises a lower die installation seat (7) which is arranged on a transmission shaft (10), wherein a connecting seat (5), a lower die (4), an upper die (17) and an upper die installation seat (3) are connected with and arranged on the lower die installation seat (7) through a guide rod (6); the upper die (17) and the lower die (4) are closed to form a hermetic molding mechanism; and the transmission shaft (10) is a hollow shaft of which one end is communicated with the molding mechanism and the other end is communicated with an exhaust joint (13). The method is feasible; a device has a simple structure; and the inside of a cavity of a casting instead of a seal cover originally is vacuumized, so that vacuum degree is improved, a pouring channel is shortened, the surface finish and compactness of the casting are improved, and particularly good compactness effect during the casting of special-shaped parts is achieved.

The invention discloses a method that diamond rectangle micropore die is processed by laser, comprising the following steps: (1) the shape of the die hole is designed, and the die hole can have wire material lead-in area, lubrication area, compression deformation area, sizing area and lead-out area; (2) the computer working procedure can be designed and compiled according to the hole shape; (3) the three-dimensional motion platform makes spatial three-dimensional motion under the control of computer procedure; (4) the laser power of the laser device can be adjusted by the computer, and the laser repetitive pulse frequency can be adjusted by automatic linear; (5) the laser bundle is focused on the work pieces, and cremation is produced on the focal point. The three-dimensional motion platform bears the pellets, and the processed parts of the pellets are moved on the laser focal point. The laser bundle can be controlled, the required hole shape can be scanned and processed on the diamond pellets circle by circle and layer by layer. The provided method can process the diamond into rectangle micropore die. The rectangle metal wire materials with the pore diameter less than 0.1mm, high precision and high strength can be made by using the die.

The present invention disclosed an all-digital speaker system device based on multi-bit Σ-Δ Modulation, comprising an A / D converter, an interpolation filter, a Σ-Δ modulator, a dynamic mismatch regulator, a differential buffer and a speaker array. The present invention takes advantage of the Σ-Δ modulation technique to effectively reduce the cost and complexity of the hardware realization of the speaker system device, thus realizing the full digitalization of the whole sound transmission link and the integration of the system device with low power dissipation and volume. Furthermore, the system device according to the present invention is provided with a better control ability on the local sound field, thus providing a better practicable method for the voice secret transmission.

The invention discloses a dissolution promoting method for soy proteins, comprising the following steps: stirring and hydrating the soybean protein product for 30 to 60 minutes; carrying on homogenizing processing to the protein dispersion liquid; carrying on ultrasonic processing to the homogenized protein dispersion liquid from step (2) with a frequency of 15 to 30 kilohertz, a power of 200 to 500 tiles, and a time period of 15 to 30 minutes; carrying on spray drying to the protein dispersion liquid with the dissolution method, powder modified soybean protein product can be gained. The invention has the advantages of simple method, feasible performance, obvious enhancement of the dissolving performance of insoluble soybean protein product, facilitation to the industrialization and cost reduction due to taking only water as the medium, and especially prominent quality gelatin performance of the modified soybean separated protein products.