494results 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 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 novel kernel tree self-organizing dynamic routing algorithm, including kernel tree generating course, kernel tree dynamic maintaining course and kernel tree-based route selecting course, according to the relative rank relationship between source node and destination node, dividing the transmission path into two directions, namely downgoing direction of known destination address and upgoing direction of unknown destination address, thus implementing the route selection of the kernel tree; by the change of communication topological structure, locally reconstructing the kernel tree, and implementing dynamic maintenance of the kernel tree. It can construct wireless self-organizing network into a tree-shaped topological structure and implements route selection and communication on this tree-type structure. It is simple and effective, practical.

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.

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 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%.

The invention provides a test method for a ditching towing tank of a fixed-wing airplane model. The method is characterized by comprising the steps of a, testing and mounting a testing device and the fixed-wing airplane model; b, testing by the steps of recording the movement posture, the acceleration change condition of the head, middle and tail part, and the pressure change after the bottom is in contact with water, of the model through a gyro, an acceleration sensor and a pressure sensor in the model during the test, recording the movement of the fixed-wing airplane model (9) separated from the testing device through a video type recorder, including the change condition of water lines of the model after entering water, reachwater sliding condition, and static floating in water. The method has the advantages of being practical, feasible, simple to operate, reliable in test result, and wide in applicable scope.

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 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.

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 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 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.