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377results about How to "Easy to compare and analyze" patented technology

Depression risk screening system and method based on virtual reality scene electroencephalogram signal

The invention provides a depression risk screening system and method based on a virtual reality scene electroencephalogram signal. Under the stimulation of a virtual reality scene, real-time acquisition, processing and analysis of data are carried out on the electroencephalogram signal by an electroencephalogram acquisition system, and finally, a depression risk is screened by a data mining method. The system provided by the invention comprises a virtual reality induction system, a electroencephalogram signal acquisition system and a data analysis system; the virtual reality induction system is used for establishing different virtual reality scenes; the electroencephalogram signal acquisition system is used for acquiring the electroencephalogram signal of a human brain, which is generated under the stimulation of the virtual reality scene and is continuously changed, and outputting the processed electroencephalogram signal and extracted real-time feature information; the data analysis system has a classification discrimination model trained by labeled healthy populations and depression risk populations, compares feature information required in a depression screening process with feature parameters of the classification discrimination model, and distinguishes and discriminates the healthy populations and the depression risk populations.
Owner:LANZHOU UNIVERSITY

Device and method for integrated collection of stress and displacement of surrounding rocks

InactiveCN102818665ACan measure three-dimensional stressThree-dimensional stress can be calculatedForce measurement by measuring optical property variationUsing optical meansFiberStress measurement
The invention discloses a device for integrated collection of stress and displacement of surrounding rocks, which comprises a spherical body, a casing pipe, a steel wire and an optical cable, wherein a threaded hole is formed by drilling along one diameter of the spherical body; a fiber bragg grating is adhered along six different directions in the spherical body respectively; one end of the steel wire is fixed on the spherical body; and one end of the optical cable is connected with the fiber bragg gratings in the spherical body. According to the device and the method for integrated collection of stress and displacement of surrounding rocks disclosed by the invention, three-dimensional stress of a point can be calculated by measuring stresses in six directions of the point, and stress and displacement can be simultaneously measured in one drill hole, therefore, not only comparison and analysis are convenient, but also accuracy of a test result is ensured as mutual interference among a plurality of near-distance drill holes is avoided, and meanwhile, workloads of the drill holes are decreased; the fiber gratings are not influenced by electromagnetic, humid and corrosive environments, and the spherical body is sufficiently contacted with the surrounding rocks as well as with slurry poured in the holes, so that accuracy and reliability of stress measurement result are guaranteed; furthermore, the spherical body is fixed in surrounding rock holes in a way that slurry is poured into the surrounding rock holes, looseness of the spherical body is avoided, as a result, a wrong displacement test result is prevented.
Owner:CHINA UNIV OF MINING & TECH

Real-time monitoring method for growth characters of tea trees in intensive cultivation

The invention discloses a real-time monitoring method for growth characters of tea trees in intensive cultivation. The method comprises the following steps: performing real-time data acquisition by a tea tree living body growth character data acquisition device based on online location, transmitting the acquired data to an artificial comprehensive management center through a wireless communication way to process, wherein the acquired data comprises current location data acquired by a locating mechanism, fresh tea leaves spectrum data acquired by a high spectrum imaging sensor, and average growth height of fresh tea leaves measured by an ultrasonic wave sensor, and judging the best fresh tea leaf picking time based on that the data and a picking judgment model established off line are combined by the artificial comprehensive management center. The picking judgment model comprises a bud size growth measurement model based on average growth height, a yield correlation model and a quality correlation model based on the high spectrum image data. The real-time monitoring method for the growth characters of the tea trees in intensive cultivation is beneficial to realizing of intensive cultivation and automation in planting of the tea trees.
Owner:湖南星索尔航空科技有限公司

In-situ testing method for deep underground engineering during rockburst preparation and evolution process

The invention relates to an in-situ testing method for deep underground engineering during a rockburst preparation and evolution process. The method comprises the following steps of excavating test branch tunnels, designing and laying testing bore holes, and selecting and testing test items. In the method, before excavating the test tunnels, monitoring bore holes and a testing sensor are preset and pre-embedded respectively along the direction of the test tunnels through the test branch tunnels; by adopting the combined in-situ testing method, variation characteristics of elastic waves, cracks, deformation and energy release rate of surrounding rock at monitored section areas of the test tunnels can be directly and continuously obtained in real time and in situ; and in-situ information of the test tunnels during the whole process of rockburst preparation and evolution in the case of excavation is obtained by testing, and comprehensive precursory rockburst basic data is acquired. The in-situ testing method of the invention is concise in technical scheme and reliable in testing instrument and can ensure comprehensive acquisition and comparative analysis of rock mass information during the rockburst preparation and evolution process; and the method can be widely applied to deep underground rock excavation engineering such as an underground testing ground, water conservancy and hydropower, traffic, mine and the like.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Construction method for next-generation sequencing library based on single-stranded connector and application thereof

The invention discloses a construction method for a next-generation sequencing library based on a single-stranded connector and application thereof. The method comprises the following steps: (1) carrying out denaturation on a double-stranded DNA (Deoxyribonucleic Acid) or RNA (Ribonucleic Acid) / DNA heterozygote segment to generate single-stranded DNA; (2) connecting one single-stranded connector with a 3' end of the single-stranded DNA; (3) extending the single-stranded DNA connected with the single-stranded connector by utilizing DNA polymerase to generate double-stranded DNA; (4) connectingthe other end of the double-stranded DNA with a T connector or a Tn5 label connector; (5) carrying out PCR (Polymerase Chain Reaction) amplification on the double-stranded DNA with two ends connectedwith the connectors to form a DNA library capable of sequencing of a next-generation sequencing technology. The method disclosed by the invention can be used for constructing the next-generation sequencing library and determining a DNA sequence and also can be used for identifying a chromatin open region, carrying out gene expression detection, carrying out trace nucleic acid amplification and thelike; the method is a novel method which belongs to the field of nucleic acid detection and analysis and has various functions and wide application value.
Owner:SOUTHEAST UNIV

Method for geosynchronous orbit synthetic aperture radar to realize continuous observation of coverage area

ActiveCN103809178AEasy to compare and analyzeA Simple and Practical Method for Solving Beam Steering VariablesRadio wave reradiation/reflectionSynchronous orbitAttitude control
The invention discloses a method for a geosynchronous orbit synthetic aperture radar to continuously observe a coverage area. The method comprises the steps of firstly, determining an orbit segment, meeting observation application requirements, of a satellite according to the longitude and latitude of an area to be observed, calculating the distance between the satellite to a target area in the selected orbit segment, when the beam of an antenna points to the target area, taking the coordinates of the target under an antenna coordinate system as coordinates A and the coordinates of the target under a geocentric fixed coordinate system as coordinates B, transferring the coordinates A and the coordinates B into the same coordinate system so that the expressions of the coordinates A and the coordinates B contain a control variable for realizing beam pointing, and then obtaining the desired controlled quantity by equating the coordinates A with the coordinates B under the same coordinate system. The satellite pitching-rolling combined implementation model of the method is not limited by the scanning capacity of the antenna and sall in attitude control angle, and therefore, continuous observation, by the geosynchronous orbit synthetic aperture radar, to a ground fixed target area, can be realized.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Multi-user multi-parameter wireless detection, diagnosis, service and monitoring system

The invention relates to a multi-user multi-parameter wireless detection, diagnosis, service and monitoring system which comprises a detection terminal and a medical establishment central processing terminal connected to the detection terminal through a network, wherein the detection terminal comprises a patient information reading module, a measuring module and a first transmission module. The first transmission module transmits patient physiological data measured by the measurement module to the medical establishment central processing terminal through the network. The medical establishment central processing terminal comprises a central analysis and diagnosis database and a second transmission module, and the second transmission module transmits data between the first transmission module and the central analysis and diagnosis database. The detection terminal further comprises an output module which is at least used for outputting inspection reports. According to the multi-user multi-parameter wireless detection, diagnosis, service and monitoring system, data transmission between the detection terminal and the medical establishment central processing terminal is utilized to achieve remote medical service, so people can more conveniently enjoy the medical service, and time and places for the medical service are more flexible.
Owner:MAYHAP IND SUZHOU

Optimized scheduling method for multi-lift-car elevator cluster

An optimized scheduling method based on a particle swarm optimization algorithm and used for a multi-lift-car elevator cluster includes the following steps that passenger flow information is generated through a passenger flow generator, wherein the passenger flow information is a hall layer elevator calling signal; parameter initialization is conducted, wherein parameters include the parameters including cluster size, the iteration number and the like of the adopted particle swarm optimization algorithm and the comprehensive evaluation function determined according to elevator running information; optimized calculation is conducted through the particle swarm optimization algorithm, the optimal solution is obtained through the limited times of iteration, and the optimal elevator dispatching scheme is determined; and the elevator dispatching scheme is converted into a control signal, elevator calling signals are reasonably distributed for all elevators, operation of all the elevators is coordinated, and therefore optimized scheduling of the elevator cluster is achieved. Because the update strategy of the global extremum is improved in the scheduling algorithm, optimal particles which are evenly distributed are obtained, the algorithm convergence and the scheduling performance are improved, meanwhile, it is avoided that the danger of collision may happen when lift cars run in the same shaft, and running safety of a whole elevator system and validity of the scheduling algorithm are ensured.
Owner:BOHAI UNIV

Equivalence coefficient method of vehicle structure fatigue damage calculation under combined road conditions

The invention discloses an equivalence coefficient method of vehicle structure fatigue damage calculation under combined road conditions. The method includes the steps of firstly, testing the stress load of a vehicle structure under selected combined road conditions and compiling a load spectrum; secondly, calculating vehicle damage value under each road condition; thirdly, according to the damage equivalence principle, using one road condition as reference to calculate the equivalence coefficients of vehicle structure damage under other road conditions; fourthly, using the equivalence coefficients to adjust the combined road conditions according to users' needs, and analyzing corresponding vehicle structure damage. The method has the advantages that the method is based on established fatigue load test data, and the equivalence relation of fatigue damage of each road surface can be conveniently and accurately determined during automobile fatigue durability research; mileage recombination can be performed in road tests according to users' application requirements and targets; fatigue damage value of vehicles can be estimated, and comparative analysis of fatigue damage can be performed conveniently.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Method for preparing arene by directly converting methane

Disclosed is a method for preparing an aromatic hydrocarbon by direct conversion of methane, comprising the following steps: a catalyst is placed in one reactor, at the same time, a mixed gas of CH4 and an alkylating agent is introduced for reaction, thus implementing coupling of two reactions to acquire the aromatic hydrocarbon. The beneficial effect of the present invention is such that: the present invention is capable of increasing significantly the conversion rate of methane and the yield of the aromatic hydrocarbon, inhibiting the generation of an oligomeric polycyclic aromatic hydrocarbon, and extending the service life of the catalyst. The method of the present invention allows for reaction within 30 minutes and keeps the conversion rate steady between 25% and 45%. When the reaction time reaches 1200 hours, the conversion rate is kept steady, while the catalyst still remains active. An anaerobic aromatization reaction of methane and an alkylation reaction of the aromatic hydrocarbon are conducted simultaneously, thus implanting heat coupling. The temperatures, space velocities, and raw materials of the two reactions are coordinated within a certain scope. The types of post-reaction products remain unchanged, thus facilitating analysis and comparison. Benzene and toluene are consumed in the reactions, while xylene and mesitylene are generated, which are of higher values.
Owner:BEIJING UNIV OF CHEM TECH

Gas station safety identification system based on video analysis

The invention discloses a gas station safety identification system based on video analysis. The system comprises a video monitoring system, an alarm system, a safety management system, an environmentsensing system and a communication module. The video monitoring system, the alarm system, the environment sensing system and the communication module are all in wireless connection with the safety management system. The beneficial effects of the gas station safety identification system are that: the environment sensing system and the video monitoring system are arranged, each region picture and the ammonia gas content, temperature, humidity, smoke and smoke and fire conditions of the surrounding environment can be conveniently monitored in real time; a comparative analysis module and a video analysis module are used; comparison and analysis of surrounding environment parameters are facilitated; meanwhile, whether an abnormal event occurs or not is judged through the video analysis module,an analysis result is transmitted to the central data processing module, and when data is abnormal, the central data processing module controls the corresponding alarm module technology to give an alarm, so that multidirectional safety detection of the gas station is facilitated, and the accident probability is reduced.
Owner:成都油管家科技有限公司

Comprehensive evaluation system of industrial boiler energy saving scheme and construction method thereof

InactiveCN107103421APerformance levelReflect applicabilityEnergy industryTechnology managementEvaluation resultThree-phase
The invention provides a comprehensive evaluation system of an industrial boiler energy saving scheme and a construction method thereof. The comprehensive evaluation system comprises three phases which are an early stage, a medium stage and a later stage, wherein in the early stage, indexes are established and weight distribution is performed; in the medium stage, fuzzy comprehensive evaluation of the step-by-step indexes is performed and a high-grade comprehensive evaluation result is output; and in the later stage, comprehensive evaluation system software is used to output an assessment result. By using the set of comprehensive and integrated evaluation system, an industrial boiler energy saving scheme is comprehensively evaluated from aspects of safety, energy saving, economy, generalizability and the like. An existing limitation of qualitative evaluation from a single aspect of energy saving is broken through, and a multi-element evaluation index model in which qualitative and quantitative evaluations are combined, a technology and a market are combined, and safety and energy saving are combined is formed. Through research, an evaluation standard of each index required by the evaluation system is determined; for different types of technologies or products, quantification is performed; human factors which influence the evaluation are reduced to a minimum so that an energy saving technology evaluation system becomes objective, scientific and reasonable; and sound development of industrial boiler energy saving technology industrialization is promoted.
Owner:NANTONG BRANCH OF SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE

Method for manufacturing transparent rock model structure face test piece

The invention discloses a method for manufacturing a transparent rock model structure face test piece. The method comprises the following steps that 1, a protolith structural face is manufactured; 2, the structural face is placed in a stainless steel mold; 3, a silica gel opposite model of the protolith structural face is manufactured; 4, transparent epoxy resin is weighed and placed in a container; 5, a curing agent is added into the container in the step 4, and bubbles in the stirred mixed solution are removed through light vibration in the vacuum negative pressure environment; 6, the silica gel opposite model manufactured in the step 3 is placed in the mold in the step 2; 7, the mixed solution prepared in the step 5 is slowly poured into the mold in the vacuum negative pressure environment, and pouring is stopped after the solution reaches a certain position; 8, a transparent epoxy resin cube body custom-made in a factory is placed in the mixed solution which is not cured, the two parts are horizontally bound, and a simulation structural face capable of being used for a rock visualization experiment is obtained. The fine surface form of the structural face is effectively and truly reflected, and good transparency and repeatability are achieved.
Owner:SHAOXING UNIVERSITY

Tumor pathological image display station

The invention relates to a tumor pathological image display station. Through a rectangular track formed by a set of elliptical tracks and longitudinal tracks connected therebetween, display boards canbe freely switched between the elliptical tracks and the longitudinal tracks, and the lower ends of the display boards are provided with pushing plates; the positions of driving rods on a driving belt and the positions of pushing rods on a guide belt in the vertical direction are changed, so as to drive the pushing plates to drive the display boards to be switched between the elliptical tracks and rectangular track respectively; a large fluted disc is meshed with two sets of first incomplete gears, a second incomplete gear is meshed with a rack through a second gear, and the elliptical tracksand the rectangular track are separated by the rack; a driving device provides power input and reversing action, the structure is clever, the operation is simple, the elliptical track show images tomore people, facilitating observation and analyzing of the details of the images, the rectangular track allows repeated flip of the display boards, facilitating comparative analysis; the display effect is good, and the accuracy of medical staff for tumor pathological diagnosis is improved.
Owner:HENAN PROVINCE HOSPITAL OF TCM THE SECOND AFFILIATED HOSPITAL OF HENAN UNIV OF TCM

Closed underground water solute migration simulation experimental device

The invention discloses a closed underground water solute migration simulation experimental device which comprises a liquid supply unit, a parallel experimental unit, a liquid waste recovery unit, a closed combined cabinet and a waste gas recovery unit, wherein the liquid supply unit provides a solution for the parallel experimental unit, and the flow of effluent or a water head can be controlled; the parallel experimental unit is used for an underground water solute migration simulation parallel experiment, and the experimental solute migration process is monitored through sampling; and the liquid waste recovery unit is used for recovering wastewater generated by the experiment. A closed space is formed by the closed combined cabinet, toxic volatile polluted solute gas is prevented from diffusing, the waste gas recovery unit is used for collecting volatile solutes in the experimental process, and atmospheric pollution is avoided. The experimental device disclosed by the invention is suitable for a simulation experiment of volatile or semi-volatile polluted solutes and has the characteristics of sustainability and high stability. Meanwhile, the experimental equipment is simplified, the experimental cost is saved, and the uniformity of the water head or flow conditions during the parallel experiment is guaranteed, so that comparative analysis of the parallel experiment results is facilitated.
Owner:HOHAI UNIV

Archaeological excavation data based relic site early terrain three-dimensional reconstruction method

The invention discloses an archaeological excavation data based relic site early terrain three-dimensional reconstruction method. The method includes steps: (1) partitioning a relic site, determiningminimum region units, numbering regions, and taking each minimum region unit as a basic recording unit; (2) subjecting the relic site to classifying space calibration, correcting relic space information sorted on the basis of excavation data into region cells, linking with the region units according to space positions, and performing statistics of depth of relics in the cells away from the groundsurface; (3) taking the ground surface close to excavation time as a starting surface to calculate depth of underground relic units by subtracting height, recorded in excavation data, of relics in certain time away from the ground surface from elevation of the starting surface; (4) taking center points of the minimum region units as elevation recording points and taking elevation values of relic units as elevation values of the minimum region units, using dispersed minimum region unit elevations to deduce ancient surface configuration in relic time, establishing a relic site early terrain three-dimensional model, and visualizing. The archaeological excavation data based relic site early terrain three-dimensional reconstruction method is scientific, effective, direct and accurate, is not only helpful to archaeological excavation data mining and using but also has a great promoting and assisting effect on archaeological site environment and layout research, thereby being significant to archaeological excavation data standardization, digitization, visualization and deep mining.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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