243results about How to "Overcome inherent flaws" patented technology

The invention discloses an intelligent cooking machine and a cooking method thereof. The intelligent cooking machine comprises a novel stirrer used for stir-frying, and the problem of stir-frying of the intelligent cooking machine is solved better. The invention further discloses a stir-frying machine assembly frame which adapts the novel stirrer. The stir-frying machine assembly comprises a material inputting device, a dish containing device, a water containing device, a pot cover integrated system, and a bottom leakage injection device, and further comprises a manual button, an Internet of Things identification device and a network device. The novel cooking machine can be used as a stir-frying machine, and can also be used as other kitchen electric cooking machines such as a rice cooker,a soybean milk machine and a bread machine, and has a higher level of intelligence.

The invention discloses lead-free calcium barium zirconate titanate piezoelectric ceramics and a preparation method thereof. The invention is characterized in that: the material composition is (1-x)Ba(Ti0.8Zr0.2)O3-x(Ba0.7Ca0.3)TiO3, wherein x=0.45 to 0.60; in the method, the (1-x)Ba(Ti0.8Zr0.2)O3-x(Ba0.7Ca0.3)TiO3 ceramics are prepared by a two-step presintering method. The lead-free calcium barium zirconate titanate piezoelectric ceramics have a main crystalline phase of a perovskite phase, have better piezoelectric property, the piezoelectric constants d33 of more than 240 pC/N, and the mechanical coupling factors kp of more than 0.40. The lead-free calcium barium zirconate titanate piezoelectric ceramics have higher piezoelectric constant, achieve the properties of the conventional lead-containing piezoelectric ceramics, have a stable and reliable preparation process, and have better application prospect.

The invention discloses a deep belief network-based short text feature optimization and sentiment analysis method. The method comprises the following steps of: 1, obtaining a microblog short text corpus set, a thesaurus, semantic progressive associated words, microblog expression dictionary and a word segmentation model; 2, expanding and reconstructing short texts; 3, carrying out word segmentation and preprocessing on the short texts; 4, constructing a word similarity calculation model; 5, expanding feature vectors of the short texts; 6, self-adaptively extracting an expanded candidate feature set on the basis of a feature depth of a deep belief network; 7, carrying out classified training on the feature set obtained by the deep belief network by utilizing a machine learning classification algorithm so as to obtain a classification and prediction model; and 8, carrying out sentiment annotation on a test data set by utilizing the classification and prediction model. The method is capable of finding potential feature semantic information more effectively and improving the quality of sentiment feature extraction so as to improve the correctness of sentiment classification.

The invention discloses a preparation method of a three-dimensional reduced graphene oxide/polyaniline composite material, which comprises the following steps: 1) uniformly stirring a graphene oxide raw material and deionized water in a reactor to obtain a graphene oxide dispersion solution; 2) adding aniline, stirring uniformly, adding medium acid, stirring uniformly under ice bath conditions, and adding an initiator; filtering the reaction product, washing the filter residue, and drying to obtain a graphene oxide/polyaniline composite material; and 3) uniformly mixing the graphene oxide/polyaniline composite material with the graphene oxide dispersion solution, putting in a closed reactor, carrying out hydrothermal reaction to form a three-dimensional reduced graphene oxide polyaniline/composite material aquagel, and drying to obtain the three-dimensional reduced graphene oxide/polyaniline composite material. The polyaniline nano particles are uniformly dispersed among the reduced graphene oxide sheets to form the three-dimensional network-structure composite material. The composite material has the advantages of large specific area, high electric conductivity and high structural stability of polyaniline.

The invention belongs to the field of radar target tracking, and specifically discloses an interactive multi-model radar target tracking method based on predicted value measurement conversion. The interactive multi-model radar target tracking method combines a measurement conversion covariance matrix based on a predicted value with a Kalman filter based on interactive multiple models in a spherical coordinate system, and realizes maneuvering target tracking. Parameters (including estimated prediction distance, azimuth angle, pitch angle and corresponding estimated prediction error covariances) related to a measurement conversion covariance are obtained according to a covariance matrix of an estimated position predicted value in a rectangular coordinate system and position prediction errors obtained by means of the filter, and through nonlinear transformation and a Jacobian transformation matrix. The interactive multi-model radar target tracking method overcomes the inherent defects of a measurement conversion algorithm, and has tracking precision higher than that of an EKF-IMM.

The invention relates to core-shell structured carbon-silicon carbide composite nano-fibers based on a coaxial electrostatic spinning process and a preparation method thereof. The preparation method comprises the following steps: (1) taking a polycarbosilane (PCS) solution and a polyacrylonitrile (PAN) solution as a shell-layer precursor and a core-layer precursor respectively; (2) carrying out electrostatic spinning on the shell/core precursor by using electrostatic spinning equipment with a coaxial needle so as to obtain precursor fibers with a core-shell structure; and (3) carrying out non-smelting treatment and high-temperature pyrolysis treatment on the precursor fibers to finally obtain C-SiC composite fibers with a core-shell structure. The invention provides the novel process method for preparing the core-shell structured composite fibers with carbon fiber cores covering ceramic-phase SiC shells, which have a controllable micro-structure, high efficiency and low cost; and the prepared composite fibers overcome the disadvantage that ceramic fibers are relatively fragile, and functional properties of high intensity and flexibility of the fiber and internal conduction and external insulation are realized.

The invention relates to a tooth X-ray image matching method based on SURF point matching and RANSAC model estimation. The tooth X-ray image matching method includes the steps that (1), images are collected; (2), the images are enhanced; (3), features are extracted; (4), the features are matched; (5), related matching coefficients are calculated; (6), a matching result is displayed; (7), if reference images which do not participate in matching exist in an image library, the step (1) is carried out, a new reference image is selected from the image library, and if all images participate in matching, operation is finished; (8), matching succeeds, personal information corresponding to the reference images is recorded, and then operation is finished. The feature points of an input tooth image and a reference tooth image are extracted according to an SUFR algorithm, then the feature points are matched according to an RANSAC algorithm, and finally, the matching degree of the two images is measured according to the correlation coefficient of the two matched images. Experiment shows that by the tooth X-ray image matching method, the high precision ratio and high real-time performance are achieved.

The invention discloses a target tracking method based on measurement conversion Kalman filtering state fusion, which belongs to the field of radar target tracking, and particularly relates to a statistical property calculation method utilizing Doppler radar measurement conversion errors. The state fusion target tracking method comprises the steps of: calculating statistical properties of converted measurement errors based on a predicted value measurement conversion method, regarding a position predicted value in a rectangular coordinate system as a condition to obtain a mean value and a covariance of the converted measurement errors, and eliminating correlation between the covariance of the converted measurement errors and measurement errors; and then performing state estimation on a position and Doppler measurement, and finally using a least mean square error criterion to fuse estimation results of the position and Doppler measurement, so as to obtain a final state estimation. The tracking method can be further extended to CV and CA motion models of a 3D radar.

The invention discloses a force sensing analog system based on a C-EPS structure. The force sensing analog system comprises a force sensing analog mechanical system based on the C-EPS structure and a force sensing analog control system. The force sensing analog mechanical system comprises a steering wheel, a steering column tube, a servo motor, a rotating angle limiting device, a torque sensor and a steering wheel rotating angle sensor; the force sensing analog control system comprises a controller and a control model; steering by different rotating angle scopes can be achieved through the rotating angle limiting device, and the shortcomings that a C-EPS system mechanical structure is large in inertia, large in friction and the like are overcome through a compensation model including friction compensation, moment differential, inertia compensation, damp compensation and rigidity compensation. The force sensing analog system is a hardware structure based on a volume production C-EPS system, the advantages that the hardware structure is simple and compact in structure, high in mechanical system accuracy, low in cost and the like are effectively used, and the force sensing analog system with aligning torque and excellent force sensing is designed.

The invention provides a biology-breathable cosmetic mask. The biology-breathable cosmetic mask is prepared from, 1%-5% of natural polymer material, 1%-10% of wetting agent, 0.12%-0.25% of cross-linking agent, 0.1%-5% of surface active agent, 0.1%-2% of preservative, 0.01%-1% of acid-base modifier, 0.01%-30% of medicine carrying functional component and the balance distilled water. The pH value of the biology-breathable cosmetic mask is 5.5-8.0. The invention further provides a preparation method of the biology-breathable cosmetic mask. The biology-breathable cosmetic mask can be dissolved quickly and completely in hot water of above 50 DEG C and is swelled only without being dissolved after being placed in normal temperature water; however, the mask can be dissolved gradually after several hours, complete biodegradation is achieved, and no pollution to the environment is caused. The biology-breathable cosmetic mask can be either a transparent thin film or a translucent or opaque thin film.

The invention relates to a copper zinc tin sulfide (CZTS) flexible solar cell and a preparation method thereof. The CZTS flexible solar cell comprises a back electrode layer, an absorbing layer, a buffer layer, a window layer, a transparent electrode layer, an adhesive layer and a flexible substrate which are all sequentially laminated. The absorbing layer is a copper zinc tin sulfide layer or a copper zinc tin selenium layer. According to the CZTS flexible solar cell with an upper substrate structure, a mature preparation process of the solar cell with a lower substrate structure can be adopted to enable various function layers to be laminated on a rigid substrate to obtain a device high in efficiency, the device is transferred to the flexible substrate through a substrate transfer method, the inherent shortcoming that the function layers directly grow on the flexible substrate is overcome, and the efficiency in manufacturing the CZTS flexible solar cell is high.

The invention discloses a method of item-all-weighted positive or negative association model mining between text terms and a mining system applied to the method. The method comprises the following steps of preprocessing by using a Chinese text preprocessing module to establish a text database and a feature word item library; mining item-all-weighted feature word candidate item sets from the text database by utilizing a feature word frequent item set and negative item set mining implementation module, calculating a weight dimension ratio, and cutting out uninteresting item sets by adopting a multi-interestingness threshold value pruning strategy to obtain an interesting item-all-weighted feature work frequent item set and negative item set model; mining an effective item-all-weighted positive or negative association rule model from frequent item sets and negative item sets by utilizing an item-all-weighted positive or negative association rule mining implementation module between terms, and outputting the mined positive or negative association rule model to a user by utilizing an item-all-weighted association model result display module between terms. By applying the method and the system, unnecessary frequent item sets, negative item sets and association rule models can be greatly reduced, Chinese feature word association rule mining efficiency is improved and a high-quality association model between Chinese terms is obtained.

This invention relates to the improvement of a rundle of a cabling machine including a platform, a cabling doubling die carrier set on it, a guide wheel set on one side of the die carrier and a frame set under it matched with the central shaft of the cabling disk characterizing that the axle wire of the shaft is vertical to the level, several cable paying out frames are set on the disk vertical to the axle wire of the disk shaft and the cable dial matched to the cable disk and several big riding wheel frames are set under the cable disk with big riding wheels on them advantaged that: long cabling at one run: it is prolonged from 1km at the present to 15km, the design of the torsion back device is reasonable and the cabling wires are turned back synchronously.

The invention relates to an integrated type semi-aerobic stabilizing and integrating system for refuse landfill. The system comprises the following components: a landfill layer, a leachate collecting and discharge guiding layer which is arranged at the bottom of the landfill, a leachate collecting well which communicates with leachate collecting and discharge guiding layer, a semi-aerobic landfill gas guiding unit which is arranged in the landfill, a leachate recharging layer which is arranged on the landfill layer, and a leachate circulation pipeline for communicating the leachate recharging layer and the leachate collecting well; the landfill layer is prepared by mixed landfill of raw house refuse and incinerator slags of house refuse. Compared with the prior art, the system has the advantages of integral simple structure, construction convenience, low construction cost, and energy saving and environmental protection; the traditional semi-aerobic landfill technology of raw house refuse is improved, and a semi-aerobic stabilizing process during mixed landfill of raw house refuse and incinerator slags of house refuse is reinforced; and the system has a wide usage range and a good application prospect.

The invention discloses a de-convolutional neural network-based scene semantic segmentation method. The method comprises the following steps of: S1, extracting intensive feature expression for a scene picture by using a full-convolutional neural network; and S2, carrying out up-sampling learning and object edge optimization on the intensive feature expression obtained in the step S1 through utilizing a locally sensitive de-convolutional neural network by means of a local affinity matrix of the picture, so as to obtain a score map of the picture and then realize refined scene semantic segmentation. Through the locally sensitive de-convolutional neural network, the sensitivity, to the local edge, of the full-convolutional neural network is strengthened by utilizing local bottom layer information, so that scene segmentation with higher precision is obtained.

The invention discloses a table identification method and device, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of identifying characters ina to-be-detected image, and generating text lines by the identified characters according to longitudinal position information of the characters; performing word segmentation processing on the text lines, determining categories to which the text lines belong in a table line attribute dimension and/or a table content dimension according to a word segmentation result, and acquiring a plurality of text lines belonging to the same table by utilizing the determined text line categories; and determining a column separation line shared by the plurality of text lines to realize table identification. According to the embodiment, the format structure of the table and the text data in the table cells can be accurately recognized.

A novel sodium columbate barium calcium zirconate titanate system leadless piezoelectric ceramic composition comprises a perovskite antiferroelectric NaNbO3 and a strong ferroelectric Ba1-yCay(Ti1-zZrz)O3; and a general formula of the composition is expressed as (1-x)NaNbO3-xBa1-yCay(Ti1-zZrz)O3, wherein x, y and z satisfy the relations of: 0.025<=x<=0.25, 0

The invention relates to an airport runway foreign body monitoring system and method. The system includes an FOD private network which is connected with a plurality of FOD monitoring points, a wireless access point, a data center, a control center an airport private network; the wireless access point is connected with a handheld mobile terminal to obtain feedback, access and foreign body information and send foreign body cleaning instructions; the FOD private network obtains flight plans, foreign body confirmation instructions, monitoring point control instructions, database operation instructions, monitoring point control instructions, data fusion results and video splicing signals, and obtains monitoring point returned information, foreign body information, feedback information, access information and the state information of the control center; the data center obtains the FOD monitoring point control instructions, the database operation instructions, the returned information, the feedback information, the access information, the state information of the control center and the wireless access point; the control center obtains the flight plans, the data fusion results and the video splicing signals; and the FOD monitoring points obtain the foreign body confirmation instructions to confirm foreign body information. With the airport runway foreign matter monitoring system and method of the invention adopted, false alarm can be effectively reduced, and the reliability of a system can be improved.

The invention discloses an aerospace vehicle re-entry guidance method capable of carrying out real-time analysis and construction. The method comprises the following steps that: 1) after the trajectory dip angle of the vehicle is zero, determining the corridor upper bound and the corridor lower bound of vehicle energy-drag acceleration; 2) generating a vehicle energy and drag acceleration characteristic profile; 3) correcting the vehicle energy and drag acceleration characteristic profile, and obtaining the correction amount of the vehicle energy and drag acceleration characteristic profile; 4) analyzing and constructing a re-entry guidance model; and 5) determining a vehicle dip angle instruction, and finishing vehicle re-entry guidance work. The guidance method disclosed by the inventionhas the advantages of being good in adaptive ability, high in accuracy, simple in calculation and easy in engineering implementation.

The invention belongs to the technical field of network communication, and discloses a network reliability model and a hybrid intelligent optimization method. According to the invention, the network reliability model adds related evaluation indexes of the network invulnerability, optimization design is performed from the two aspects of survivability and invulnerability, a node is allowed to lose effectiveness with a certain probability in the optimization design, optimization design is performed on the a network topology structure, and a defect of single limiting condition of an existing reliability model is overcome, thereby being more perfect and confirming to an actual application scenario. The optimization method disclosed by the invention provides a hybrid intelligent algorithm combining a generic algorithm and an ant colony algorithm in allusion to the characteristics that the generic algorithm is poor in local search ability but high in overall search ability and that the ant colony algorithm is poor in total search ability but high in local search ability, thereby making the best of the two algorithms, overcoming intrinsic defects of the single intelligent algorithm, and improving the solving quality of a solution.

The invention relates to a compact type high-efficiency combined rice milling machine comprising a machine body and a motor. The top of the machine body of the compact type high-efficiency combined rice milling machine is provided with a rice hulling machine head and a fan, the top of the rice hulling machine head is provided with a feed hopper, a bran separator and a rice milling machine are arranged in the machine body from top to bottom, an air inlet at the bottom of the fan is connected with a bran outlet at the top of the bran separator, an unpolished rice outlet at the bottom of the bran separator is positioned above the feed hopper of the rice milling machine, and the bottom of the rice milling machine is provided with a fine bran hopper; according to the compact type high-efficiency combined rice milling machine, the functions of rice hulling, rice milling and fine processing are integrated; and the compact type high-efficiency combined rice milling machine has the characteristics of compact structure, small size, little energy consumption, short processing procedure, low processing cost, convenient operation and the like. According to the compact type high-efficiency combined rice milling machine, a rice milling chamber has a simple structure, a strip-shaped rice knife of a fixed screen mesh and a rice milling roller are matched with high efficiency, and the quickness and the cleanness of rice milling are ensured. A rice output regulating device can be used for regulating the magnitude of the frictional force of the rice milling of unpolished rice, and the rice output rate is high. By applying the device, the inherent defect of a traditional rice milling machine can be overcome, and the condition of obtaining rice with low broken rice rate and bright and integral rice grains becomes a normal state.

The invention discloses a voltage-drop compensation method for power output lines and a switch power supply, and the key points of the technical scheme are as follows: the circuit at the feedback part of the switch power supply comprises a sampling resister 04, a reference source 03, a photoelectric coupler 02, an output capacitor 05, a power output line resister 06 and a current-limiting resister 01, wherein one end of the current-limiting resister 01 is connected with the output resister 05, and the other end thereof is connected with the photoelectric coupler 02; the photoelectric coupler 02 is connected with the cathode of the reference source 03, the anode of the reference source 03 is set as a reference ground, and the reference end of the reference source 03 is connected with the common ports of R2 and R3 of the sampling resister 04; R2 end of R2 and R3 of the serial sampling circuit 04 is connected with the output capacitor 05, and R3 end is connected with the reference ground of the reference source 03; and a compensation resister Rd is added between the reference ground of the reference source 03 and R3 of the sampling resister 04. The invention has the advantages of saving wires and improving load regulation. The invention can be used in the feedback parts of various power supplies, and comprises but is not limited to the following devices such as a flyback converter, a forward converter, a half-bridge converter, a full-bridge converter, a quasi-resonant converter and the like.

One kind connected presses the pile machine. This machine mainly by the long support 1, the main crossbeam 2, a leg 3, the migration presses the pile to support platform 4, the operating system 5, center support abutment 6. Initiative pressure pile Liang 7, hangs the pile organization 8, follow-up presses pile Liang 9, the counterweight system 10, the electrical system 11, the hydraulic system 12, presses pile 13, locks the part 43 several partial compositions. Uses when this machine carries on presses the pile construction work, the elevating mechanism first follow-up presses pile Liang Yanya a pile promotion to to enter the pile altitude which needs, joins walks seat-s on a plane in initiative pressure pile Liang in the pile machine with follow-up presses pile Liang through the inside and outside tension bar or the lead screw continuously in turn to locate may realize should press the pile machine highly effective connection to press the pile work. This presses the pile machines and tools has when the pressure pile work does not damage the pile section, does not appear slips the phenomenon, the work efficiency high, installs the maintenance conveniently, the entire machine stability is good and so on the merit, effectively has overcome the present pressure pile machine use limitation.

The present invention relates to an arc tube of metal halide lamp. It has a semitransparent alumina ceramic outer shell, two ends of said outer shell are equipped with a conductive leading wire respectively, and an electrode is mounted on one end of the conductive leading wire nearby cavity body of the outer shell, and the interior of intermediate cavity body is filled with a certain quantity of inert gas, mercury and metal halide of Sc, Na, Tl, In, Dy, Ho and Tm, etc., and said outer shell is made up by using two compacts through sintering process.

The invention discloses a method for preparing wax from multiple plastic resins by copyrolysis. Raw material of polyolefin is put into a reaction kettle; the reaction kettle is vacuumized and then filled with nitrogen until the pressure reaches 100kPa; raw material in the kettle is heated by a method of oil-bath or infrared ray until the raw material comes to a total fusion; the temperature is controlled between 300 DEG C to 450 DEG C and maintained constant for 0.5 hour to 10 hours; heating is stopped, the temperature is reduced below 200 DEG C and the raw material which is the wax is discharged; and the performance of the product is tested. The method has the advantages of high heat distortion point, high rigidity, high tenacity, lubricating property, wet fastness and the like; and the method also has simple production operation and wide application.