83results about How to "Good universality" patented technology

The invention discloses a daily activity identifying method with exercising and physiology sensing data fused. According to the method, an smart phone and a wearable physiology sensing device are used for collecting exercising sensing data and physiology sensing data; then time domain and frequency domain statistical features and nonlinear features are extracted respectively, and feature selection is carried out through a sequence floating forward selection method; through a support vector machine and a Gaussian mixture model, activity identifying submodels of the exercising sensing data and the physiology sensing data are trained respectively; and finally the submodels are subjected to weighting integration through a fractional order fusion method, and a final daily activity classification model is obtained. The exercising sensing data and the physiology sensing data are fused, the accuracy of daily activity identifying can be improved, and the daily activity identifying method has wide application prospect in the fields of intelligent families, medial health care, old people assisting and the like.

The invention discloses a human behavior detection method and device. The method comprises the following steps: image frames of a video to be detected are obtained; a global optical flow field between the obtained two adjacent image frames is determined, and motion information between the two adjacent image frames is obtained; according to the obtained motion information, at least one motion region having a default motion direction is obtained, wherein the motion region includes at least one pixel for forming an image frame; the filtering process is performed on the obtained motion region, and the default human behavior shape matching process is performed on the filtered motion region; and according to the matching result, human behaviors included in the video to be detected can be determined. By adopting the technical scheme, the advantage of good application universality can be realized, the human behavior detection accuracy in a video monitoring system can be well improved, and the consumption of resources can be reduced.

The invention discloses a method for catalyzing ring-opening polymerization of cyclic ester by a zinc catalyst, and belongs to the technical field of polymer synthetic materials. The problems that anexisting zinc catalyst for catalyzing ring opening of cyclic ester needs the participation of support ligands, and reaction activity and controllability are improved by changing steric hindrance and electrical property of central metal are solved. According to the invention, under the catalysis of a bis(hexaalkyldisilazane)zinc catalyst, lactone is initiated by an alcohol compound to carry out a ring-opening polymerization reaction, and a polyester material with rich structure is obtained. The catalyst adopted by the invention is a green and environment-friendly bis(hexaalkyldisilazane)zinc catalyst which does not need ligand participation, efficient and high-controllable active polymerization of different lactones can be realized under mild conditions, and the monomer universality is verygood, so that various polyester materials with different structures are obtained. The system has good universality for ring-opening polymerization of cyclic ester monomers, catalyzes the synthesis ofvarious degradable polyester materials, and promotes the development of sustainable polymers.

The invention discloses a cloud computing data security boundary protection method. The cloud computing data security boundary protection method comprises the steps that a cloud service request instruction sent by a user is received, and a data structure and safety parameters of a system are initialized and sent to the user; the user generates a secret key message; the user sends a data storage request, the header information of the metadata of the data storage request is generated, and a cloud data center initializes a plain data append tree; the user generates and sends an encrypted data block to the cloud data center; the cloud data center maintains the plain data append tree in real time according to the serial number and version number of the data block; the user executes security boundary verification and append operation of data on the plain data append tree by utilizing the secret key information of the user. The cloud computing data center of a cloud server terminal not only provides the encryption, fault tolerance and security boundary maintenance functions for the data of the user, but also meets the confidentiality, integrity and survivability of the data.

The invention discloses a method for preparing silver nano-wire and graphene-based calcium alginate composite conductive fibers. According to the method disclosed by the invention, sodium alginate micron scale fibers are prepared from by adopting a wet-spinning technology; after the fibers are subjected to surface modification to carry positive charge, the fibers are immersed into a silver nano-wire alcohol solution with negative electricity on the surface, so that one layer of nano silver-wire conductive network structure is formed on the surface of the fibers; finally, one layer of grapheneis adsorbed on the surfaces of the conductive fibers and the stability of the conductive fibers is improved. The invention discloses the preparation method of the composite conductive fibers; the preparation method has the advantages of simple preparation technology and low cost; the conductive fibers can be prepared in a large batch and has an application prospect in the aspects including preparation of microelectronic device circuits, flexible conductors and the like.

The present invention relates to a non-direct measurement temperature-compensating model correction method in the on-line application of a near-infrared spectrum analyzer, which comprises: acquiring a near-infrared spectrum of each sample under different temperature levels; respectively carrying out preprocessing and principal component analysis on the acquired spectra for temperatures and to-be-measured physical property parameters: then merging the obtained spectra to generate new spectral data: using partial least squares to model the spectral data to obtain measured values at the current moment; finally, constructing an on-line recursive algorithm, and thereby on-line near-infrared measurement with a non-direct measurement temperature compensation function is fulfilled. The present invention adopts temperature as a separate latent factor variable to participate in the process of near-infrared modeling, so that when near-infrared measurement is used, by depending on the adaptability of a model to the temperature, physical property measurement under different temperatures can be carried out without direct temperature measurement information or related calculation, and thereby the created model has better universality. The on-line recursive algorithm of the present invention has better adaptability to sample temperatures and other measurement condition changes.

The invention discloses an intelligent decision model and a method for mahjong, comprising a feature extraction module, wherein the feature extraction module comprises a directional listening number,various hand card counting, a lapping count, a dark streamer count, a sub-dew number, a sub-dew streamer, a treasure card, a carving, a bar and a broken card feature number. For the feature extractionmethod of simple rule matching, the feature number obtained by the feature extraction method proposed by the intelligent decision model of the invention is more comprehensive and concrete, and the application on the later model has higher precision; compared with the feature extraction method proposed by Tokyo University in Japan, the invention has better universality, more universality, convenient transplantation and higher commerciality.

The invention discloses a control method and device for a micromechanical accelerometer. The method is suitable for a micromechanical accelerometer provided with a driving electrode structure and tuning structures. According to the control method and device of the invention, cosine injection modulation signals of a certain frequency are applied to the driving electrode of the micromechanical accelerometer; a fixed tuning voltage is applied to the nonlinear tuning structure of the micromechanical accelerometer; one path of the output signals of the micromechanical accelerometer which have passed through a high-frequency carrier modulation and demodulation module pass through a frequency self-regulating module, so that tuning control signals can be obtained and are applied to the linear tuning structure of the micromechanical accelerometer; the other path of the output signals of the micromechanical accelerometer which have passed through the high-frequency carrier modulation and demodulation module pass through an acceleration closed-loop measurement module, so that the magnitude of an externally inputted acceleration is obtained, and closed-loop feedback control signals are formed;and the formed closed-loop feedback control signals and the cosine injection modulation signals of a certain frequency together act on the driving electrode. With the control method and device of theinvention adopted, the magnitude of the resonance frequency of the micromechanical accelerometer can be arbitrarily controlled, acceleration measurement is not affected, and the stability and precision of the micromechanical accelerometer can be effectively improved.

The invention belongs to the field of organic synthesis and in particular relates to a synthesis method of a polysubstituted isoindoline derivative. The synthesis method comprises the following steps:after sufficiently mixing aryl chloride, o-aminophenol, olefin with an electron withdrawing group, a catalyst, an additive, an oxidant, an alkali and a solvent, raising temperature and reacting; after reaction is finished, carrying out post-treatment to obtain a target product.

The invention relates to a batched field-of-view cropping and ruler adding method for metallographic digital photographs, in particular to a batched field-of-view cropping and ruler adding method for the metallographic digital photographs by using Photoshop software, wherein the method is simple, efficient and capable of achieving batched manufacturing. The method includes the steps of photograph acquisition, ruler calibration, length conversion, action recording and batched processing. According to the method, field-of-view cropping and ruler adding for the metallographic digital photographs are achieved with the method of combining a 'batched processing' function and an 'action' function of the Photoshop software, a large number of photographs can be processed in single-step operation, therefore, work efficiency is greatly improved, and labor intensity of workers occupied in metallographic analysis is alleviated; in addition, the photographs after being cropped are consistent in size, added rulers are fixed in position, and the manufactured metallographic digital photographs are uniform in overall style.

The invention relates to a corn disease grading method, a corn disease grading system and computer equipment. The method comprises the following steps: S1, acquiring a normal corn leaf image and a diseased corn leaf image; S2, constructing a disease classification neural network, and initializing parameters of a convolutional layer and a full connection layer by adopting transfer learning; S3, establishing an area segmentation neural network, and initializing first two layers of network parameters by adopting transfer learning; s4, inputting the to-be-detected leaf original image into the corndisease classification neural network to obtain disease classification information; inputting the original image into an area segmentation neural network to obtain a binary image of a disease area and a leaf main body area, and calculating the area proportion of the disease area; and S5, grading disease conditions according to the disease classification information and the area ratio. The invention provides a method which adapts to pictures shot in a real environment, does not need to pick corn leaves and automatically grades common leaf disease conditions of corn, and lays a foundation for grading identification of corn diseases, especially early diagnosis, prediction and early warning.

The invention relates to a synthesis process of dibenzofuran derivatives, and relates to the fields of natural products with biological activity, medicaments and material chemistry. The used raw material is a cyclic diphenyliodonium trifluoromethanesulfonate derivative, a reaction is carried out in a water phase at 100 DEG C under the catalysis of a 1,10-phenanthroline ligand and cuprous iodide, and a series of dibenzofuran derivatives are obtained. With the adoption of the method provided by the invention, the dibenzofuran derivatives can be obtained by carrying out the reaction at the temperature of 100 DEG C for 24 hours, and the yield is 60-96%. In the reaction, water is taken as a reagent as well as a solvent for participating in the reaction, and the simple, convenient, green, economic, and novel method is provided for synthesizing the derivatives.

The invention belongs to a synthesis method of 3-aryl isoindoline derivatives, and relates to the field of natural products and medicine with bioactivity. Used raw materials are o-cyanobenzaldehyde derivatives; electron-rich aryls and diphenyliodonium trifluoromethanesulfonate are used as raw materials; copper acetate is used as a catalyst; reaction is performed in an o-dichloromethane solution at 110 DEG C to obtain the 3-aryl isoindoline derivatives. By using the method provided by the invention, the reaction is performed for 2 to 3 hours at 110 DEG C; the 3-aryl isoindoline derivatives can be obtained; the yield is 69 to 99 percent. The simple and easy-to-obtain raw materials are used; the 3-aryl isoindoline derivatives are synthesized by a one-pot method; a simple, convenient, efficient and green synthesis method is provided for the synthesis of the derivatives.

The invention belongs to the technical field of organic synthesis chemistry, and particularly relates to a synthetic method of aminoisoindole derivatives. According to the invention, continuous carbon-nitrogen bond construction is catalyzed by rare earth, so that synthesis of aminoisoindole derivatives with diversified structures is realized. Specifically, a compound 2-phenylethynyl benzonitrile and secondary amine are used as raw materials, and the aminoisoindole derivatives are prepared under a rare-earth catalysis system. According to the method disclosed by the invention, the raw materialsare wide in source or are easy to prepare, the operation is simple and convenient, selectivity is controllable, the yield is high, conditions are mild, and universality is wide.

The invention belongs to the technical field of concrete, particularly relates to a method for measuring and calculating the actual strength of concrete on a construction site, and aims to provide a method for establishing a relationship between laboratory data and site construction environment data and quickly judging the structural strength of concrete on site. According to the method, influenceof the temperature on the equivalent age of the concrete is considered, and influence of the humidity is also considered; various factors influencing concrete strength in engineering are comprehensively considered, a strength coefficient database and a strength attenuation coefficient database are established respectively, then a new engineering field newly-allocated concrete strength predictionformula is established, and finally, component formwork removal time is reversely calculated, so that the predicted concrete strength data is more accurate. By establishing an effective relational expression between the actual concrete strength and the age, a simple and effective means for evaluating the concrete structural strength is provided.

The invention relates to a remote robot control system and method based on VR technology. The system comprises a camera, a direct-current brushless motor driver, a steering engine, a main controller,a vehicle-mounted mobile phone device and a handheld mobile phone device, wherein the camera and the main controller are installed on a robot, the direct-current brushless motor driver drives the robot to travel, the steering engine controls direction turning of the robot, the vehicle-mounted mobile phone device is installed on the robot, the vehicle-mounted mobile phone device is in communicationwith the main controller through bluetooth, the output end of the main controller is connected with the direct-current brushless motor driver and the steering engine correspondingly, and the vehicle-mounted mobile phone device is connected with the camera. According to the system and the method, the robot can be remotely operated, the system and the method have good universality for all kinds ofpeople, the image of the vehicle-mounted camera can be clearly and accurately presented in equipment of a handheld end, the traveling control of the robot is completed through the data communication between the vehicle-mounted mobile phone device and the Android client of the handheld mobile phone device.

The invention provides a self-adaptive fat suppression pulse parameter selecting method. The method includes the steps that signals of a target region under fat suppression pulse effects of different parameters are pre-scanned and acquired, the signals are subjected to frequency spectrum distribution calculation and water signal intensity and fat signal intensity calculation, signal intensity data obtained under the effect of various groups of parameters are evaluated and compared according to a system preset evaluation formula, the evaluation result is recorded as R, and the group of fat suppression pulse parameters corresponding to the R maximum value is set as the fat suppression pulse parameter in clinical scanning. The self-adaptive fat suppression pulse parameter selecting method can determine the optimal fat suppression pulse parameters according to a current scanning case, good universality is achieved, and the fat suppression effect in the magnetic resonance scanning process is greatly improved.

The invention discloses a direct electrochemical synthesis method of a thiophosphate compound. A three-electrode system is adopted in the reaction, a cathode and an anode are Pt electrodes, and a 0.1 mol / L silver nitrate acetonitrile solution is used as a reference electrode; triester phosphite and mercaptan are added into a Bu4NBF4 acetonitrile solution with a certain concentration, stirring and electrolytic reaction are conducted for 2-6 hours under the conditions that the temperature is 25-55 DEG C and the constant pressure is 0.6-1.4 V, and after the reaction is finished, separation treatment is conducted to obtain the thiophosphate compound. According to the synthesis method disclosed by the invention, clean electric energy is used as an oxidizing agent, so that the environmental cost is reduced; and the universality of the reaction substrate is good.

The invention discloses a control circuit based on prolonging service lives of multiple electrochemical sensors. The control circuit comprises four transistors and four metal oxide semiconductor (MOS) switches. Five power supplies are arranged in the circuit; a power supply SVCC is supplied by a power supply circuit; a power supply SVCC-1, a power supply SVCC-2, a power supply SVCC-3 and a power supply SVCC-4 are used for providing voltage for the sensors and are connected onto four power wires of four sensors; base electrodes of the transistors are respectively connected onto four general input / output (I / O) ports of a microprogrammed control unit (MCU) through resistors; collector electrodes of the transistors are connected to second pins or fourth pins of the MOS switches SI9947DY; the emitting electrodes of the transistors are grounded; third pins of the MOS switches are connected onto the power supply SVCC; fifth pins and sixth pins or seventh pins and eighth pins of the MOS switches are connected to power ports of the sensors; and the power supply SVCC-1, the power supply SVCC-2, the power supply SVCC-3 and the power supply SVCC-4 are connected onto the respective power wires of the four sensors. The control circuit disclosed by the invention is simple in structure; the sensors are controlled by utilizing the general purpose input / output (GPIO) ports of the MCU to power up all the sensors periodically, therefore, the goal of prolonging the service lives of the electrochemical sensors is achieved.

The invention provides a data processing method and device. The data processing method comprises the steps: segmenting an obtained offline log according to a semantic symbol, and obtaining multi-levelstructure data; analyzing the multi-level structure data according to preset characteristic parameters to obtain a parameter set, the characteristic parameters comprising parameter paths; and constructing a tree data structure according to the parameter paths in the parameter set. According to the data processing method, recursive analysis can be directly carried out on the offline log, so that the data processing method has no invasiveness to a service code and has very good universality.

The invention discloses a zinc oxide composite material modified by phthalocyanines copper, a producing method and a function of the zinc oxide composite material modified by phthalocyanines copper. Materials are zinc oxide porous micron blocks with surfaces modified by the phthalocyanines copper, the specific surface area is 8-9<2> / g, the length of each porous micron block is 5-10 mu m, the height of each porous micron block is 10-20 mu m, and the diameter of a pore in each porous micron block is 20-70 nm. The method is that firstly a zinc chloride solution is dropwise added in a stirred oxalic acid saturated solution so as to obtain white precipitate, and the white precipitate is repeatedly washed by water and ethylalcohol in sequence and is dried so as to obtain a zinc oxalate dihydrate precursor; then the zinc oxalate dihydrate precursor is baked so as to obtain porous zinc oxide micron powder; thirdly the phthalocyanines copper, acetylacetone and the ethylalcohol are mutually mixed so as to obtain steeping liquor, and the porous zinc oxide micron powder is placed in the stirred steeping liquor for at least 5 hours and is filtered, washed and dried, so that a target product is produced. The zinc oxide composite material modified by phthalocyanines copper is used for detecting an organic matter which is stable in performance but has the electron-withdrawing performance.

The invention relates to an organic solvent liquid compression rate online test method and system based on micro-upgraded volume. An organic solvent is compressed online by controlling reciprocating motion of a liquid phase pump and using micro-upgraded volume of a liquid end of a liquid phase pump, a pressure value of a liquid path system is read in real time, and a pressure increase is correlated with a compression value, so that micro-upgraded volume organic solvent liquid compression rate is tested online. When a high-precision ultrahigh pressure liquid phase pump transports an organic solvent, ultrahigh pressure compression of a liquid solvent may affect flow accuracy, the method solves the above problem; when an ultrahigh pressure high-precision organic solvent is transported, onlinetest of the organic solvent compression rate provides necessary data support for flow accuracy control, pulsatility and high pressure sealing performance of a flow path system, and compensates compression in real time, so as to guarantee that the consistency indicator of transport flow accuracy and the pulsatility indicator of constant flow can keep stable.

The invention provides a drilling process operation performance evaluation method. The drilling process operation performance evaluation method comprises the following steps: introducing process capability index definition and dividing drilling process operation performance grades; performing filtering and normalization processing on the drilling process data, and judging whether the current working condition is normal drilling or not; performing feature extraction on the variable space by using a principal component analysis method, and extracting an operation parameter principal component space as an input parameter of the operation performance evaluation model; an evaluation model is established for the operation state under the normal drilling working condition through a particle swarm optimization support vector machine method, the input of the model is an operation principal component variable, the output is the energy level of the current operation performance, and the aim of evaluating the operation performance in the drilling process is achieved. According to the operation performance evaluation method provided by the invention, the limitation caused by regional limitation of a traditional method is overcome, the accuracy of the operation performance evaluation result in the drilling process is improved, and guidance is provided for research on the aspects of state monitoring, performance optimization and intelligent control in the drilling process.

The invention discloses a region-selective synthesis method of 2,5-disubstituted pyrrole and belongs to the field of chemical synthesis. According to the method, simple pyrrole is used as a starting raw material, step-by-step iodination and coupling reaction are utilized, and six-step reaction is carried out, so that a series of 2,5-disubstituted pyrrole connected with different substituent groups, yields are more than or equal to 60% respectively, and structures are confirmed by virtue of 1H NMR, 13C NMR and HRMS. Compared with the traditional Paal-Knorr synthesis method, the region-selective synthesis method disclosed by the invention has the advantages that a building block molecule does not need to be constructed in advance, cheap and easy-to-get pyrrole is used as a raw material, a synthesis process is simplified, different substituent groups can be flexibly introduced to sites 2,5 of pyrrole, and a foundation is laid for synthesizing compounds such as drugs, molecular wires and macromolecular polymers.

The invention belongs to the technical field of organic synthesis, and particularly relates to a method for synthesizing a 3-selenoindole derivative. Under the action of a non-metal additive, a compound 2-styryl aniline derivative and organic diselenide are used as raw materials, and tandem cyclization reaction is realized through a 'one-pot method', so that the 3-selenoindole derivative with a diversified structure is synthesized. The method is easy and convenient to operate, high in reaction selectivity, wide in universality, environmentally friendly and capable of avoiding use of metal reagents.

The invention provides an adjustable ridging machine. The machine comprises a driving machine head, a ridging mechanism, a tamping mechanism and a ditching mechanism which are sequentially arranged from front to rear; the ridging mechanism can be used for ridging formation, the tamping mechanism can be used for tamping formation, the ditching mechanism is used for final ditching and division, andthe ridging mechanism and the tamping mechanism can be conveniently adjusted according to demanded ridge shapes.

The invention discloses a direct-writing preparation method of a hollow carbon nanosphere / Al / Fe2O3-based nano thermite, which comprises the following steps that first, the hollow carbon nanospheres and Al / Fe2O3 nano thermite are added into an organic solvent, stirring and ultrasonic treatment are carried out to obtain a uniform suspension, and vacuum drying is conducted on the suspension to obtain a dry powder mixture; second, the dry powder mixture is mixed with a nitrocellulose solution, and grinding is conducted to obtain slurry; and third, the slurry is subjected to ink direct writing printing and then subjected to vacuum drying to obtain a thermite structure with the controllable size and shape. According to the preparation method, the hollow carbon nanospheres and the Al / Fe2O3 nano thermit solid particles are safely and controllably mixed together in an ink direct writing manner. The preparation of the novel thermite structure with controllable size and shape is realized by adopting printing ink nozzles with different diameters. The method is safe, controllable and easy to operate, has good universality, can be used for preparing other advanced materials, and provides a new thought for material design in the future.

The invention relates to porous powder loaded with super-hydrophobic particles and a preparation method and application thereof. The preparation method comprises the steps of dispersing nano-sol, ammonia water and a water-based hydrophobic treating agent in deionized water to prepare modified nano-particle suspension liquid, and obtaining super-hydrophobic modified nano-particle powder through a spray drying method; and adding porous micron ceramic powder and a water-based silane coupling agent into deionized water, then adding the super-hydrophobic modified nano-particle powder, continuously conducting stirring to prepare a porous particle suspension loaded with super-hydrophobic particles, and obtaining the porous powder loaded with the super-hydrophobic particles through a filtering and drying or spray drying method. The preparation method disclosed by the invention is low in requirements on the material and shape of the substrate, simple in equipment, easy to operate, low in cost and capable of realizing large-area construction, and brings revolutionary changes to the fields of building coatings, anticorrosive coatings, industrial coatings, functional coatings and the like.

The invention relates to a detection method of common goldenrop particles. The detection method of the common goldenrop particles comprises the following steps: preparation of a mixed reference substance solution: taking baicalin, baicalein, wogonin, wogonoside, ammonium glycyrrhizinate, saikoside b2 and saikoside b1 reference substances, adding a solvent for dilution to as the mixed reference substance solution and preparing a reference medicinal material solution; preparation of a test solution: taking common goldenrop particles, adding an extraction solvent for dissolving, filtering, and taking a subsequent filtrate as the test solution; and respectively injecting the mixed reference substance solution, the reference medicinal material solution and the test solution into a high performance liquid chromatograph for determination. According to the method, 15 components of 5 medicinal materials of the common goldenrop particles and 2 components of 2 medicinal materials can be subjected to qualitative treatment and quantitative treatment at the same time, the operation is simple and convenient, the repeatability is high, and the chromatographic peak pattern is good.

The invention relates to a method for directly synthesizing substituted 2-indolone by substituted indole under the neutral condition. The method comprises the following steps of sequentially adding organic solvents and water according to the proportion of 1:1-1:20 at the room temperature; then, adding high-iodine reagents; raising the temperature to 40 to 160 DEG C; then, adding indole; performingreaction for 1 to 8 hours to obtain the substituted 2-indolone compounds. The method has the main innovation point that under the neutral condition, substituted 2-indolone is directly synthesized through indole oxidization; the use of strong acid reagents is avoided. The method has the advantages that the raw materials are cheap and can be easily obtained; the operation is simple and convenient;the substrate universality is high; the reaction yield is high, and the like.