3198 results about "Omega" patented technology

A method and composition for blood lipid therapy by administering to the subject an effective amount of a dyslipidemic agent and omega-3 fatty acids. The method utilizes a single administration or a unit dosage of a combination of dyslipidemic agent and omega-3 fatty acids for the treatment of patients with hypertriglyceridemia, hypercholesterolemia, mixed dyslipidemia, coronary heart disease (CHD), vascular disease, artherosclerotic disease and related conditions, and the prevention or reduction of cardiovascular and vascular events.

The invention specifically relates to a current collector and application thereof, and a pole piece and a battery using the same, belonging to the field of batteries. The current collector of the invention comprises an insulating layer and a conducting layer, wherein the insulating layer is used for bearing the conducting layer; the conducting layer is used for bearing an electrode active materiallayer; and the normal-temperature film resistance Rs of the conducting layer is no less than 0.016 omega / sq and no more than 420 omega / sq. The current collector provided by the invention can greatlyincrease the short-circuit resistance of the battery in cases of abnormal conditions, allows short-circuit current to be greatly reduced, so heat produced by short circuits is greatly lowered, and heat produced at sites where internal short circuits occur can be totally absorbed by the battery; and thus, the influence of short-circuit damage to the battery is limited to certain points, only pointcircuit break occurs, and the normal operation of the battery in a short period of time is not affected.

The invention relates to a graphene blend regenerated cellulose fiber. The graphene blend regenerated cellulose fiber is prepared by mixing an oxidized graphene solution and a regenerated cellulose solution, molding a mixture through a viscose wet spinning process and reducing the mixture; the dry breaking strength of the graphene blend regenerated cellulose fiber is not less than 1.8 cN / dtex, the wet breaking strength of the graphene blend regenerated cellulose fiber is not less than 0.9 cN / dtex, the dry breaking elongation of the graphene blend regenerated cellulose fiber is not less than 16%, the mass specific resistance of the fiber is 1-9X106 omega.g / cm2, and the thermal decomposition temperature of the fiber is not lower than 400 DEG C; and with the regenerated cellulose fiber as a matrix, the prepared graphene blend regenerated cellulose fiber has the advantages of good moisture absorption, good air permeability, soft handle and good dyeing performance and has the characteristics of ultrahigh strength, thermal conductivity, electric conductivity, antibacterial property and the like of the graphene; the conductive and thermal properties of the fiber are both improved by being compared with those of the traditional regenerated cellulose fiber; the antibacterial property of the fiber is additionally provided; and the graphene blend regenerated cellulose fiber provided by the invention has the advantages of simple production process, easiness in operation, and higher yield. People estimate that the developed graphene blend regenerated cellulose fiber can be widely applied to the field of costumes, industrial textiles and the like.

A flow measurement device is disclosed, in which an accumulation of pollution substance onto a detection element is prevented, and which can measure a reverse flow similarly to a normal flow. On both ends of an outer wall 23 outer peripheral portion of a divided flow pipe 20 having a OMEGA-shape pipe passage, there are oppositely formed an inlet port 25 and an outlet port 26, which open in faces orthogonal to a flow direction of a main flow M that is a detection object. Within the divided flow pipe 20, by a curved partition 27, plural branch flow passages 28a, 28b mutually branching and joining in the divided flow pipe 20 are formed. Inside both end portions of the outer wall 23, undulation portions 32, 33 are formed so as to clog an inlet and an outlet of the outer peripheral side branch flow passage 28a and, by this, throttles are formed respectively in a flow passage between the inlet port 25 and the inlet of the branch flow passage 28a and a flow passage between the outlet port 26 and the outlet of the branch flow passage 28a. In a bottom portion of the outer wall 23 of the divided flow pipe 20, a detection element 31 is attached so as to be exposed to a flow in the outer peripheral side branch flow passage 28a and, against its detection face, a down flow DW further divided from a divided flow D obliquely impinges.

The invention belongs to the technical field of digital signal processing, and provides a high-efficiency measurement method of a sinusoidal signal frequency in undersampling and an implementation device which can estimate parameters such as frequency and the like under the condition of undersampling and can finish precise frequency measurement. The invention adopts the technical scheme that traditional FFT spectrum analysis and all phase FFT spectrum analysis are adopted to obtain a peak value spectrum G (q) and a peak value spectrum Ga (q); a phase value is directly read from the peak valuespectrum to take the square of a G (q) modulus to obtain a power spectrum value Pg (q); after performing modulus division on Pg (q) and Ga (q), amplitude estimation is obtained to take the differenceof the phase value of G (q) and the phase value of g(q), and the difference divided by tau=(N-1) / 2 to obtain frequency offset estimation delta k; and finally delta k delta omega and q delta omega aresuperposed to obtain digital angular frequency estimation which directly serves as the phase estimation and the amplitude estimation of the measured signal. The invention is mainly used for undersampling measurement in digital signal processing.

The invention relates to the field of shaped pulse measurement, in particular to a spectrum shearing interferometer suitable for measuring shaped pulses. A plane grating, a first concave face reflecting mirror, a double-slit baffle, a first reflecting mirror and a second reflecting mirror are used for forming a special 4f zero dispersion compressor, the distance between the plane grating, the first reflecting mirror and the second reflecting mirror and the first concave face reflecting mirror is equal to the focal length of the first concave face reflecting mirror in the 4f zero dispersion compressor, the mode that the 4f zero dispersion compressor is added with the double-slit baffle is used for acquiring two quasi monochromatic long pulses, the two quasi monochromatic long pulses and a pulse to be measured are made to be in sum frequency. According to the mode, a shearing amount omega and the band width delta omega of an auxiliary pulse segment participating in sum frequency can be prevented from varying along with the change of the characteristics of the pulses to be measured, the shearing amount omega can be changed conveniently to measure the same pulse, the corresponding phase difference of each frequency of the pulse can be solved independently, and therefore the shaped pulses with various characteristics can be measured accurately.

The invention relates to a preparation method for graphene, especially to a method for preparing high-quality graphene through electrochemical high-efficiency exfoliation. The method mainly overcomes the technical problems that the honeycomb lattice structure of graphene is severely destroyed in the process of oxidation, an obtained membrane resistance is 1 K to 70 K omega / square (wherein light transmittance is less than 80%), the resistance is too high and much higher than requirements of ITO, etc. The method comprises the following steps: with graphite as a positive electrode and a platinum filament as a negative electrode, repeatedly applying high offset voltage and negative offset voltage on the graphite electrode, which enables graphite to be rapidly disassociated and decomposed into double-layer graphene floating on the surface of an electrolyte; collecting graphene and then filtering and drying graphene; dispersing obtained powder of a graphene film in a DMF solution; and carrying out water-bath ultrasonic treatment and centrifugation so as to obtain desired 1.5-nm-grade graphene flakes.

The invention provides an optical fibre gyro strapdown inertial navigation system error inhibiting method based on single-shaft rotation. The initial position parameters of a carrier are confirmed; the data outputted by an optical fibre gyroscope and a quartz accelerometer are collected; the pose information of the carrier is confirmed by the relation between the output of the accelerometer and an acceleration of gravity as well as the relation between the output of the gyroscope and the earth rotation rate; and the initial aligning of the system is finished; an inertial measuring unit coordinate system rotates by 45 degrees along the front direction of the shaft oyb of a carrier coordinate system and the initial opposite position between the two coordinate systems is confirmed; IMU continuously rotates along the front direction of the orientation shaft ozb of the carrier coordinate system by an angular velocity that Omega is equal to 6 degrees / s. The data generated by the optical fibre gyroscope and the quartz accelerometer after the rotation of the IMU is converted under the carrier coordinate system to obtain the modulating form of the constant deviation of an inertial apparatus. The output vale Omega ib of the optical fibre gyroscope is used to update a strapdown matrix Tb; the speed and the position of the carrier after the IMU is rotated and modulated are calculated. The invention modulates the constant deviation of the inertial device on the directions of three shafts to improve the navigation and location precisions.

The embodiment of the invention discloses a method and a device for suppressing residual echo, comprising the following steps: receiving a reconstruction voice echo signal y' obtained according to a far-end voice signal, and receiving an input signal e comprising a residual echo signal delta, wherein the input signal e is obtained by counteracting the reconstruction voice echo signal y' from a near-end voice signal d comprising a voice echo signal; transforming signals y', d and e into frequency domain signals Y '(omega), D (omega) and E (omega) through Fourier transform; calculating the power spectrum estimation Sy'y' (omega) of cross-spectral density Sed (omega) and Y'(omega) of D (omega) and E (omega), and calculating the noise signal power spectrum estimation Sww (omega); calculating the power spectrum estimation S delta delta (omega) of a residual echo signal delta according to an echo suppression capacity factor mu and Sy'y'(omega), wherein, mu is a controllable gain which is adjusted according to echo suppression capacity; and filtering the residual echo signal delta from the input signal e according to Sed (omega), Sww (omega) and S delta delta (omega). In another aspect, the invention also discloses relevant equipment. By adopting the method and the device of the invention, residual echo can be effectively filtered.

Composition and method for preventing, treating or attenuating inflammatory diseases by way of inhibiting lipid peroxidation and subsequent elementary inflammation through ensuring the presence of the following biologically active ingredients in the PMRS of cells involved in inflammation: i) at least one killed probiotic and ii) at least one omega 3 FA and iii) vitamin E and iv) ubiquinone by introducing a composition comprising any of the missing ingredients.

The invention discloses a conductive silver paste for microelectronic packaging, which contains the following components in parts by mass: 10-12 parts of liquid epoxy resins, 9-10 parts of diluents, 10-13 parts of spherical silver powder, 50-57 parts of platy silver powder, 0.5-1.5 parts of latent curing agents, 0.2-0.8 part of curing promoter, 1-2 parts of coupling agents, 0.5-1 part of conductive promoters, 0.5-1 part of aging resister and 1.5-2.3 parts of toughening agents. The body resistivity of the conductive silver paste prepared by the invention reaches 10-5 omega.cm, the shear strength is greater than 9MPa, and the conductive silver paste has stable contact resistance; and after low-temperature circulation, high-temperature humidity aging tests and other aging tests, the shear strength, the impact-resistant toughness and the contact resistance change are all less than 18%. The prepared conductive silver paste is suitable for microelectronic packaging and has the advantages of stable contact resistance and strong impact resistance.

The invention relates to the technical field of PID control, and discloses a fractional order integration PID controller setting and self-setting method. The method specifically comprises the following steps that firstly, the Bode ideal transfer function order beta and the amplitude cross-over frequency omega c are appropriately selected to meet the formula: 1<beta<2 and the formula: 0<omega c<omega max; secondly, when a controlled object mathematical model P(s) is known, the low order derivative of a transfer function model of a controlled object is solved, and then the third step is carried out, and when the controlled object mathematical model P(s) is unknown, the system information is identified according to the step response of the controlled object or the relay closed loop response, and the third step is carried out, wherein the two conditions are not met, the process is ended; thirdly, PID controller parameters with the fractional order integration are fast determined according to the parameter setting formula. According to the technical scheme, automatic control of an ordinary industrial process can be achieved easily.

The invention discloses a fire-retardant insulating polyvinyl chloride material and an electrical sleeve made from the material. The fire-retardant insulating polyvinyl chloride material comprises the following raw materials in part by weight: 100 to 150 parts of polyvinyl chloride, 0.2 to 5 parts of heat stabilizer, 5 to 20 parts of compatibilizer, 20 to 60 parts of fire retardant master batch, 0.3 to 1 part of lubricant, 1 to 3 parts of titanium white powder, 10 to 20 parts of impact modifier, 2 to 4 parts of processing aid and 5 to 20 parts of calcium carbonate. The fire-retardant insulating polyvinyl chloride material provided by the invention has excellent flame retardant property and insulating property; the oxygen index can be over 33.4; the test is up to V-0 level according to the measurement standard of GB / T2048-2008 plastic combustibility; and the resistivity can be up to 1.1*1,011 Omega.m. Therefore, the material can meet the requirement on insulation and fire retardance of a low-voltage wire cable.

A level set polarization SAR image segmentation method based on polarization characteristic decomposition, belonging to the radar remote sensing technology or the image processing technology. In the invention, a polarization characteristic vector v which is composed of three polarization characteristics: H, alpha and A is obtained by the polarization characteristic decomposition of each pixel point of the original polarization SAR image; the polarization characteristic vectors v of all the pixel points are combined into a polarization characteristic matrix omega so as to convert the segmentation problem of the polarization SAR image from data space to polarization characteristic vector space; and the condition that the characteristic vector definition is suitable for energy functional of the polarization SAR image segmentation is utilized and a level set method is adopted to realize the numerical value solution of partial differential equation, thus realizing the polarization SAR image segmentation. The method provided by the invention takes full use of the polarization information of the polarization SAR image; therefore, the image edge obtained by segmentation is relatively complete so that the local characteristic is maintained better, the robustness for noise is stronger, the stability of the arithmetic is higher and the segmentation result is accurate; and the invention reduces the complexity of data and can effectively improve the image segmentation speed.

The invention relates to the technical field of PVC modified materials and particularly relates to an insulating and environment-friendly PVC modified material and a preparation method thereof. The insulating and environment-friendly PVC modified material contains the following raw materials: 80-120 parts of PVC resin, 40-60 parts of bulking agent, 40-60 parts of plasticizer, 10-15 parts of insulation modifier, 3-7 parts of heat stabilizer and 0.5-1.5 parts of lubricant, wherein the plasticizer is a mixture prepared from dioctyl terephthalate and tri-n-butyl citrate which are in the weight ratio of (5-7): 1; the insulation modifier is a mixture prepared from kaolin, titanium white and glass micro-beads which are in the weight ratio of (2-4): (1.5-2.5): 1, and the particle size of the glass micro-beads is smaller than 20 microns. According to the modified material prepared by the preparation method, all properties exceed the national standards, the insulating property is good, the resistivity reaches up to 5.1*10<14> omega, and the modified material is environment-friendly; the preparation method disclosed by the invention is simple in process, convenient in operation and control, stable in quality and high in production efficiency and can be applied to large-scale industrial production.

The invention which belongs to the field of organosilicon room temperature vulcanizing silicone sealants especially relates to a one-component alcohol sealant for a photovoltaic assembly, and a preparation technology thereof. The sealant is suitable for sealing the aluminum frame of the photovoltaic assembly, fill-sealing a backboard and the frame, and bonding a conjunction box. The one-component alcohol sealant for the photovoltaic assembly is prepared from 10-100 parts of a polysiloxane-based polymer, 0.1-50 parts of alpha, omega-alkyloxypolydimethylsiloxane plasticizer, 0-500 parts of a heat conduction filler, 0-300 parts of a flame retardant filler, 0.1-500 parts of a reinforcement filler, 0.5-10 parts of a silane crosslinking agent, 0.5-10 parts of a silane tackifier, 0-10 parts of platinum or a platinum complex, and 0.001-15 parts of a catalyst. The sealant of the invention has the advantages of excellent bonding property, rapid curing speed, low water absorption rate, superior performances and the like.

Devices and analytical techniques are disclosed for measuring spatial profiles of complex permeability and conductivity of a material by multiple wavenumber interrogations. Coil array structures are disclosed which define a number of different fundamental wavelengths (or wavenumbers). Spatially periodic interrogation signals (of temporal frequency " omega ") from the coil array structures are attenuated by varying degrees in the material undergoing analysis, depending on the wavenumber ("k"), thereby permitting the derivation of composite complex permeability / conductivity profile.

The invention provides a method, device and system for controlling a PMSM (Permanent Magnet Synchronous Motor) to put into operation again at the belt speed. The counter EMF of the PMSM is obtained by the speed of a trailer, and is compared with the voltage on the inverter side, if the counter EMF is higher than the voltage on the inverter side, the PMSM is not allowed to be put into operation again at the belt speed, otherwise, the PMSM is put into operation again at the belt speed. When the PMSM is allowed to be put into operation again at the belt speed, a separation contactor is closed; when the PMSM is not allowed to be put into operation again at the belt speed, the separation contactor is switched off. Therefore, the method, the device and the system can be used for computing the rotor position angles through dividing the working conditions into low-speed working conditions and medium-high speed working conditions according to Omega e, and the PMSM is started through the rotor position angles; the overall control method is provided from the view of system, the PMSM at the high speed section is not allowed to be put into operation again at the belt speed, the position for the PMSM at the medium-high speed section to be put into operation again is determined through adopting a one-step short-circuit method to compute the rotor position angles, the position for the PMSM at the low speed section to be put into operation again is determined through adopting an INFORM (Indirect Flux detection by On-line Reactance Measurement) method to compute the rotor position angles.

The invention discloses a linear laser scanning three-dimensional contour measuring method and device. A linear laser device swings under the control of a magnetostriction micrometric displacement controller to form a scanning surface on a detected object, the swing angle omega is determined by the size of the object, and it is guaranteed that the linear laser device completely scans the contour of the detected object; then height information of all contour points is acquired, and the three-dimensional surface contour of the object is reestablished. The linear laser scanning three-dimensional contour measuring method and device have the advantages that in the method, the object does not need to move, the laser device is controlled by the magnetostriction micrometric displacement controller to swing to completely scan the contour of the object, after light rays on which diffuse reflection is conducted by the surface contour of the object are received by an imaging module, the height information of all the points on the surface contour of the object can be acquired, the three-dimensional surface contour of the surface of the object is reestablished, the range and the angle of the laser scanning surface can flexibly change according to the size of the object, measurement is accurate and quick, accuracy is high, the application range is wide, and the three-dimensional contour measuring device is simple in structure and convenient to operate.

The invention discloses high-fluoride-content graphite fluoride and a preparation method thereof. The method comprises the following steps: preparing aqueous dispersion liquid of graphite oxide with a conventional improved Hummers method, then freezing the aqueous dispersion liquid of graphite oxide in liquid nitrogen to be completely frozen into solid, and freezing and drying to obtain cellular graphite oxide; under a mixed atmosphere of inert gas and fluoride, warming the cellular graphite oxide for fluoridation, and cooling to room temperature. The fluoride content of the prepared high-fluoride-content graphite fluoride is 55-70 percent, fluorine atoms are bonded with carbon atoms in a covalent bond mode, weightlessness peak temperature is larger than 470 DEG C, the heat stability is good, and the resistance is larger than 1012 omega. The prepared graphite fluoride has the advantages of high fluoride content, good heat resistance of fluorine-containing groups, low cost, simple process, lower reaction temperature, high safety and energy saving, is suitable for mass production, and has a better application prospect.

The invention relates to an online updating method of a principal component analysis monitoring model. The method comprises the following steps that: 1) A model online updating system comprising data acquisition equipment and a monitoring computer is arranged in industry field; 2) A traditional principal component analysis (PCA) modeling module uses historical data to establish a PCA initial monitoring model; 3) After the monitoring begins, a mean value variance updating module calculates a mean value and a standard deviation sigma' of a new model according to real-time process data and the current PCA model; 4) A projection point calculation module calculates a residual vector of a new sample and transmits to a residual determination module; 5) The residual determination module determines an updating method of a projection direction according to a size of a residual vector die; if the residual is large, a principal component space adjusting module is called; if the residual value is small, a principal component direction fine adjusting module is called; finally a load vector P' nk and a characteristic value matrix lambda' kk of the new model is obtained; 6) A control limit updating module carries out control limit and updating on statistical magnitude of the model; the system finally outputs the new model omega' which is used for online monitoring and fault diagnosis during an industrial process.

The invention relates to a direct torque control system of a permanent-magnet synchronous motor. According to the control system, an extended kalman filter (EKF) observer is adopted for stator magnetic linkage and rotation speed estimation, according to a mathematical model of the permanent-magnet synchronous motor, the state variable x of the system equals to [Psi alpha, Psi beta, Omega gamma, Theta gamma] T, the input variable mu equals to [mu alpha, mu beta] T, the output variable y equals to [Iota alpha, Iota beta ] T, and state equations and output equations (11) of the system are obtained. The motor rotating speed is used as the input of an automatic data rate changer (ADRC) speed controller, the measurement value Te of the electromagnetic torque is calculated through the obtained stator magnetic linkage, in addition, the measurement value Te and electromagnetic torque given signals are compared, comparison results are used as the input of a space voltage vector pulse generator, and the output of the space voltage vector pulse generator is connected with a voltage source inverter of the permanent-magnet synchronous motor. The direct torque control system has the advantages of good dynamic performance, better stability performance, high robustness and high anti-interference capability.

The invention provides a coarse alignment method for a fiber optic gyro strapdown inertial navigation system based on single axis rotation. The coarse alignment method comprises the following steps: (1) determining initial position parameters of a carrier by a GPS; (2) collecting the data output by a fiber optic gyroscope and a quartz accelerometer and processing the data; (3) determining a transfer matrix Ti<n> of a navigation coordinate system and an inertial coordinate system according to the mutual position relation of the coordinate systems; (4) allowing a single axis of an inertial measurement unit to continuously rotate, setting superposition of an initial time IMU coordinate system s and a carrier coordinates b, then allowing the inertial measurement unit to continuously rotate around a positive direction of an azimuth axis ozb of the carrier coordinate system with an angular velocity Omega=6 degrees / s; (5) determining the relative position relation of the inertial coordinate system and a base inertial coordinate system; and (6) determining an expression of a strapdown matrix after coarse alignment is over according to the calculated relative conversion relation of the coordinate systems calculated in step (3), (4) and (5). The coarse alignment method can help obtain higher coarse alignment precision under a swinging interference condition.

The invention discloses a local dynamic path planning method for a mobile robot based on an adaptive dynamic window, and the method comprises the following steps: calculating a dynamic range thresholdvalue D<scale>; judging whether the mobile robot enters a dense barrier region or not; calculating a dynamic weight value gamma<d> of a linear speed v when the mobile robot is judged to enter the dense barrier region; calculating the interval Int<ij> of barriers, and judging whether the mobile robot can get across the dense barrier region or not; searching a standby speed space when the mobile robot can get across the dense barrier region, and obtaining an allowed speed (v, omega) when no collision happens; carrying out the normalization of three inputs (heading, dist and vel) of a target function, substituting the dynamic weight value gamma<d> and the allowed speed (v, omega) into the target function, obtaining an optimal speed combination (v<t+1>, omega<t+1>) through the target function, and enabling the optimal speed combination (v<t+1>, omega<t+1>) to serve as the moving speed of the mobile robot at a moment (t+1); executing the optimal speed, and judging whether the mobile robotarrives a target point or not: stopping the mobile robot if the mobile robot arrives the target point, or else switching to step 1 for a new loop.

The invention discloses an ultrasonic ranging method, belonging to the technical field of electronic measurements. The ultrasonic ranging method comprises the following steps that: an ultrasonic transmitter and a pulse laser are located at a transmitting end, the transmitting end receives a measuring command, subsequently, the pulse laser triggers a beam of pulse laser and the ultrasonic transmitter triggers an ultrasonic wave at the same time, and phase locking is carried out on the triggered ultrasonic wave and an external clock source; an ultrasonic receiver and a photodiode are located at a receiving end, after the photodiode receives the pulse laser, a timer is started, after the ultrasonic receiver acquires the received ultrasonic wave, the timer is stopped to acquire transition time; the transition time multiplies by a revised sound velocity to acquire a rough measurement value of a measured distance; and a phase difference is obtained, a fine measurement part is lambda delta omega / 2phi, and an actually measured distance d' is acquired, wherein d'=Nlambda+lambda delta omega / 2phi. The ultrasonic ranging method has the advantages that the receiver is easily interfered by the transmitter, a measurement blind zone is greatly reduced, the ultrasonic distance measuring directivity is improved, the distance measuring precision is improved within one ultrasonic wavelength; and the ultrasonic ranging method is particularly suitable for distance measurement in a single station type space orientation and measurement system.

The invention discloses a preparation method of titanium pigment used in ship paint. The method comprises the following steps that: a. metatitanic acid is calcined, such that a titanium pigment crude product is obtained, the titanium pigment crude product is prepared into TiO2 slurry, and sodium hexametaphosphate is added to the slurry; b. the slurry is heated, a silicon-containing compound is added to the slurry, and the slurry is homogenized; c. the pH value of the TiO2 slurry is regulated to 0.8 to 4; d. after the slurry is slaked, an organic dispersant is added to the slurry, an aluminum-containing compound is added to the slurry, and the mixture is homogenized; e. the pH value of the TiO2 slurry is regulated to 4 to 8; f. the TiO2 slurry is slaked; g. the TiO2 slurry is filtered, such that the resistivity of the filter cake is greater than or equal to 100 [omega]M; and the filter cake is dried and heat treated; h. an organic surface conditioning agent is added to the filter cake, and the filter cake is crushed, such that the finished product is obtained. According to the present invention, nano-sized silicon oxide sol and alumina sol are prepared sequentially. Through physical adsorption and chemical absorption, a compact coating layer is formed on the surface of the TiO2 particles. Then, the coating layer is firmly attached to the surface of the TiO2 particles through chemical deposition. With the coating layer, the product provided by the present invention possesses good dispersibility, weatherability and corrosion resistance. Meanwhile, according to the method provided by the present invention, the raw materials are easy to obtain, the processes are smooth and are easy to control.

The present invention provides permutation instructions which can be used in software executed in a programmable processor for solving permutation problems in cryptography, multimedia and other applications. The permute instructions are based on an omega-flip network comprising at least two stages in which each stage can perform the function of either an omega network stage or a flip network stage. Intermediate sequences of bits are defined that an initial sequence of bits from a source register are transformed into. Each intermediate sequence of bits is used as input to a subsequent permutation instruction. Permutation instructions are determined for permuting the initial source sequence of bits into one or more intermediate sequence of bits until a desired sequence is obtained. The intermediate sequences of bits are determined by configuration bits. The permutation instructions form a permutation instruction sequence, of at least one instruction. At most 21 gr / m permutation instructions are used in the permutation instruction sequence, where r is the number of k-bit subwords to be permuted, and m is the number of network stages executed in one instruction. The permutation instructions can be used to permute k-bit subwords packed into an n-bit word, where k can be 1, 2, . . . , or n bits, and k*r=n.

The invention relates to a deep dehydrating method and device for an oil product. The deep dehydrating method for the oil product comprises the steps of firstly, enabling the oil product with trace water to pass through a rectifier to ensure that a fluid is uniform; secondly, realizing the capture, agglomeration and growth of trace water drops and demulsification and separation of a trace water-in-oil emulsion through one or more segments of X-shaped oleophylic / lyophobic and hydrophilic / oleophobic fiber braid layers; next, realizing the rapid agglomeration, growth and separation of the water drops through microwave-forced settlement separation; finally, realizing the capture and separation of the extremely trace water drops in the oil product through one segment of omega-shaped oleophylic / lyophobic and hydrophilic / oleophobic fiber braid layer, thereby realizing the deep dehydration of the oil product. The invention also provides a set of device for realizing the method. The device comprises a shell, a feeding pipe, a rectifier, a fiber agglomeration layer, a microwave forced separation layer, a liquid level meter and other parts. The method is high in separation efficiency, low in energy consumption and long in continuous operation period, and can be widely applied to the deep dehydrating processes of all oil products with trace water.

The invention discloses an alternating current induction motor control system based on a self-immunity to interference control. On basis of the prior art, according to ambiguity compensation, a known part, i.e., the ambiguity compensation sc of the rotation speed working characteristics of the alternating current induction motor is input to an expanded state observer, a sum action quantity Omega 3 of a variety of interference of an actual rotation speed Omega of the motor is an estimation of an unknown part instead of an overall rotation speed, thus burdens of the expanded state observer are relieved, meanwhile a variation scope of a parameter adapting object is enlarged, and the estimation precision of the expanded state observer is increased. By the adoption of the control system, better control effects compared with that of the alternating induction motor system based on the traditional self-immunity to interference control are obtained, the robustness and the immunity to interference are stronger, and the dynamic quality is improved.