544 results about "Function method" patented technology

Method and apparatus for detecting nerve activity of an animal. Some embodiments include outputting a light pulse having a wavelength onto a volume of animal tissue such that the light pulse interacts with active nerves of the tissue; measuring a light signal resulting from the interaction of the light pulse with the tissue; transmitting an electrical signal based on the measured light signal; signal-processing the electrical signal; and outputting a response signal, which can optionally be used to control a prosthetic device, stimulate another nerve, or display / diagnose a condition. Some embodiments output a plurality of light wavelengths and / or pulses, which are optionally high-frequency intensity modulated. Some embodiments analyze DC, AC, and phase components of signals to spatially resolve locations of neural activity. Some embodiments output light pulse(s) and detect the resultant light from outside a human skull to detect neural activity of human brain tissue inside the skull.

The invention discloses a pile-embedding spiral pipe typed ground source heat pump system and a heat transmission model of a geothermal heat exchanger thereof. A solid cylindrical surface heat source model is put forward for the first time and two analytic solution expressions of the heat transmission model is worked out by the Green function method. The system can sufficiently utilizes the underground area of a building, saves a great amount of expenses for boring and pipe embedding, reduces the initial investment of the ground source heat pump system, improves the construction efficiency and has convenient and quick construction. Furthermore, the heat transmission model of the pile-embedding spiral pipe geothermal heat exchanger can quantitatively analyze the effects of all parameters of the pile-embedding spiral pipe geothermal heat exchanger on the heat transmission capability and provides a basis for the engineering design. The structure of the pile-embedding spiral pipe typed ground source heat pump system comprises the geothermal heat exchanger which is connected with an air conditioning heat pump system by pipelines; the air conditioning heat pump system is connected with a conveying and end system in the building; the geothermal heat exchangers have the quantity of more than one; and each geothermal heat exchanger forms the pile-embedding spiral pipe-typed geothermal heat exchanger by building pile foundations and spiral pipes which are embedded in the pipe foundations.

Methods and apparatus for electronically addressing and interrogating microarrays are disclosed. The described microarrays include a plurality of features disposed on a substrate. Each of the features has a first electrode disposed on the substrate, a second electrode disposed on the substrate, and a probe disposed between the first electrode and second electrode. The substrate also includes addressing circuitry in operable relation to the features. Method of using the microarrays are also described.

The invention discloses a power system load data identification and recovery method. Firstly, according to user historical load data, the number of clusters and initial cluster centers of sample data are determined on the basis of the hill climbing method; secondly, the final cluster center and the characteristic curve of the historical load data are obtained on the basis of the fuzzy C-means clustering algorithm; thirdly, each kind of load characteristic curve is processed, and the feasible region interval where normal data of the load curve is located is obtained; fourthly, according to correlation coefficients with the load characteristic curves, the category to which a to-be-tested load curve belongs is determined; finally, on the basis of the feasible region interval and the to-be-tested load curve whose category is judged, bad data of to-be-tested load data is identified and corrected. According to the method, the fuzzy C-means algorithm serves as the basis, the hill climbing function method is used, the number of clusters and the initial cluster centers are determined at the same time to improve clustering efficiency, and the initial cluster center determination problem and identification effect judgment randomness problem of bad data are solved.

The invention discloses a cascade hydropower station group optimized dispatching method based on an improved quantum-behaved particle swarm algorithm. The problems that local optimum happens to the quantum-behaved particle swarm algorithm at the later iteration period due to premature convergence for the reason that population diversity is decreased, and an obtained hydropower station group dispatching scheme is not the optimal scheme are mainly solved. The hydropower station group optimized dispatching method based on the improved quantum-behaved particle swarm algorithm is characterized by comprising the steps that first, power stations participating in calculation are selected, and the corresponding constraint condition of each power station is set; then, a two-dimensional real number matrix is used for encoding individuals; afterwards, a chaotic initialization population is used for improving the quality of an initial population, the fitness of each particle is calculated through a penalty function method, the individual extreme value and the global extreme value are updated, an update strategy is weighed, the optimum center location of the population is calculated, neighborhood mutation search is conducted on the global optimum individual, the positions of all the individuals in the population are updated according to a formula, and whether a stopping criterion is met or not is judged. The hydropower station group optimized dispatching method based on the improved quantum-behaved particle swarm algorithm is easy to operate, small in number of control parameters, high in convergence rate, high in computation speed, high in robustness, reasonable and effective in result, and applicable to optimized dispatching of cascade hydropower station groups and optimal allocation of water resources.

The invention discloses an electric power system vulnerability assessment method, and relates to the field of a power network safety analysis technology. The electric power system frangibility assessment method comprises the following steps: (1), establishing a complex network structure of an electric power system; (2), establishing a structure vulnerability factor indicator through electrical betweenness in the complex networks structure; (3), obtaining network real-time trend data through a static energy function method; (4), calculating a state vulnerability factor, and calculating to obtain an integrated vulnerability assessment indicator through combination with a structural vulnerability factor in step (2); and (5), outputting a vulnerable area of the electric power system. According to the invention, since the electric power system vulnerability assessment method analyzes vulnerable links which may exist in the electric power system from a global perspective, the vulnerable area in the operation of the electric power system can be comprehensively, accurately and effectively determined, the defects of a conventional single one-sided electric power system vulnerability assessment method and the like can be made up for, emphases are provided for prevention and control of safe operation of the electric power system, and collapse of the electric power system, caused by disturbance or accidents, is effectively prevented.

The invention discloses a G-N wave model-based forecast method for a large-amplitude motion of a ship in a severe sea condition, and belongs to the technical field of ship motion forecast. Through nonlinear simulation of the motion of the ship in waves, a nonlinear effect of an incident wave force and a hydrostatic restoring force of a ship body is considered, and an incident wave pressure on thewet surface of the ship body is calculated. A fluid pressure is solved based on a G-N wave theory, so that the incident wave force and a hydrostatic pressure are obtained; a radiation force and a diffraction force are solved by adopting an impulse response function method, wherein the wave surface of the diffraction force is obtained by a G-N wave model; and consistency correction can be performedin calculation. The large-amplitude motion of the ship is forecast by adopting a weak nonlinear motion equation based on coupling of three freedom degrees including heaving, pitching and rolling; RAOis calculated for analyzing motion characteristics of the ship; a simulated motion response time history significant valve, a motion extremum value and oscillation statistics are analyzed by utilizing a wave-by-wave analysis theory; and the motion of the ship body can be forecast more accurately.

Stabilized carrier recovery is achieved even at the time of a low C / N ratio by measuring the phase of a signal and controlling VCO or NCO (Numerical Controlled Oscillator) using only a period having few constellation points. At this time, false lock phenomenon is avoided as follows. That is, relatively short SYNC modulated by an already-known pattern is entered into a modulation wave, VCO or NCO oscillation frequency is swept in a wide range and sweep is stopped at a frequency in which the SYNC can be received, thereby carrying out coarse control AFC. Further, a period having long to some extent, having few constellation points is provided in the modulation wave and then, a difference between the frequency of a received modulated signal and a local oscillation signal of VCO or NCO is obtained in this period. This frequency difference is analyzed according to the phase differential function method, self-correlation function method or count method, and the VCO or NCO is controlled based on this result of analysis.

Methods and devices for controlling room function devices from a single conference unit. A conference unit can be a video conference unit or a speakerphone. Controlled devices may include external loudspeakers, microphones, room function controllers, powered doors, powered windows, powered window shades or blinders, video screens etc. The connections between devices may be wired, wireless, or a combination of both.

Methods of treating psychiatric activity by placing a device in contact with a target site in the brain of a patient and operating the device to modulate the brain to treat the psychiatric activity.

A rolling method for overcoming the complex wave shape features that a rolling mill which has special pass configuration and contains at least 4 rollers (supporting roller and working rollers or intermediate rollers) and a plate shape control system are used. The plate shape controlling steps includes measuring plate shape data, processing to obtain plate shape signal, calculating plate shape deviation, and finding out the control signal of plate shape controller by polynomial fitting method or influence function method.

The invention relates to a sound source locating method based on improved PHAT weighting time delay estimation. The sound source locating method comprises the steps that a microphone array collects four paths of sound signals, the sound signals are converted into digital signals through an A / D sampling circuit, time delay estimation algorithm processing is conducted through an improved PHAT weighting generalized cross correlation function method, a time delay estimation value is obtained, a nonlinear equation system is solved through the iteration method according to the time delay estimation value and the spatial position of the microphone array, and then the relative position of a sound source is obtained. According to the sound source locating method based on improved PHAT weighting time delay estimation, the arrangement of the microphone array is similar to the arrangement of the origin of a rectangular coordinate system and fixed length points on the x-axis, the y-axis and the z-axis; the calculated quantity is small, the device requirement is low, the speed is high, and instant locating is achieved; a sound source locating system is applied to social life, the military field and other aspects such as a video session, path planning and locating of a sniper.

Methods and apparatus for providing an antifuse are disclosed, where the antifuse includes a semiconductor substrate having an active area circumscribed by a shallow trench isolation (STI) boundary; a gate conductor disposed above the semiconductor substrate and overlying at least a portion of the STI boundary; a dielectric disposed between the semiconductor substrate and the gate conductor; a first terminal coupled to the gate conductor; and a second terminal coupled to the semiconductor substrate, wherein a breakdown of the dielectric causes electrical connections between regions of the gate conductor and regions of the active area including substantially near the STI boundary.

The invention discloses an optimal configuration method for a power distribution automatic terminal type. A target function of a two-remote and three-remote power distribution automatic terminal optimal configuration model is established, and the target function includes cost generated by adopting a life-cycle period method and comprehensive social benefits generated by reducing of the outage cost; the average power supply availability of a system serves as the reliability constraint condition of the two-remote and three-remote power distribution automatic terminal optimal configuration model, an analytical method is used for conducting reliability assessment, the constraint condition is used for converting a target function through a penalty function method, and a fitness function is formed; the particle swarm optimization is adopted for conducting the optimal solution, adaptive values of particles are calculated, the adaptive value of each particle is compared with the current entity extreme value and the global extreme value, and the optimal entity value and the optimal global value are determined and updated; whether the maximum number of iterations is reached or not is inspected. The optimal configuration method can solve the problem of the number and the position configuration of two-remote and three-remote power distribution automatic terminals.

The invention relates to the technical field of application system log management, and provides a method for managing a log and a system thereof. The method comprises the following steps: S1, initializing a system service function list and a service function method list; S2, establishing a system log list and a history data log list; S3, directly relating specific operation information in service operation with the system log list and the history data log list; and S4, automatically recording log information according to the service operation. The method integrally considers connection of the log information of the whole application system with the service operation, and a user can select that whether certain service operation requires log record or not according to current requirement during operating, and a service operation interface can instantly call out related log information without inquiring a special log searching interface, thereby greatly simplifying operation of the user.

This invention belongs to magnetic electricity material domain, which conretely relates to using fictitious multichannel phase-locking enlarging principle to implement test material magnetic electricity function method and device of computer control. This invention make phase-locking amplifier fictitious, which is that computer software implements function of phase-locking amplifier. It is very convenient to carry out phase-locking agnification process for random multipath signal by using fictitious phase-locking amplifier. Therefore, it not only precisely automatically survey dE and dH, improve magnetic electricity function measurement precision, but also work frequency limit is boosted a lot compared to hardware phase-locking amplifier, meanwhile decrease manufacture cost of magnetic electricity measuring device. This invention also combines control and measurement of apposition cocurrent offset magnetic field to boost automaticity of magnetic electricity measuring device, thereby improve precision and efficiency of magnetic electricity measurement.

Methods and devices for controlling room function devices from a single conference unit. A conference unit can be a video conference unit or a speakerphone. Controlled devices may include external loudspeakers, microphones, room function controllers, powered doors, powered windows, powered window shades or blinders, video screens etc. The connections between devices may be wired, wireless, or a combination of both.

Methods of determination of the blood pressure, determination of a heart stroke volume, determination of the state of stress or relaxation of a user, with use of a ballistocardiogram signal reflecting the user's heart beats, with a measure of characteristic amplitude of ballistocardiogram signal, and measure for each couple of consecutive heart beats, beat time intervals DeltaHB(i) between successive heart beats, extracted from a ballistocardiogram signal or from an impedance plethysmography signal measured at the user's foot, leading to determination of a heart rate variability index, over at least six successive heart beats, leading to determination of mean arterial pressure, leading to determination of state of relaxation or stress of the user.

Methods, systems and articles of manufacture are disclosed for providing secure access to data. Public UDTFs, private UDTFs and a metadata processor are utilized to facilitate secure access to data residing in a variety of data repositories.

A device and associated methods, that enhances analog telephony communications for an end-user by providing telephony capabilities that are typically too complex, cumbersome or costly for an individual end-user. The device provides a combination of traditional telephone capabilities with VOIP capabilities. Methods provide for the simplified use of the device from a conventional analog telephone.

The invention discloses a target body surface reconstruction method in a three-dimensional image. The method includes the steps of firstly, obtaining outer shell data of a target body through a dot density analytical method and an improved grid division method, namely, a depth-first traversal method; secondly, conducting surface reconstruction of the target body through an energy function method based on image segmentation by taking the outer shell data, obtained in the first step, of the target body as point cloud in the computer graphics. According to the target body surface reconstruction method in the three-dimensional image, firstly, the obtained volume data, namely, the earthquake sampling point data, of the target body are processed through the improved image segmentation technology so that the volume data can be applied to the point cloud surface reconstruction method in the computer graphics, then, surface reconstruction is conducted on the target body through the improved energy function method based on image segmentation, the difficult problem of conducting surface reconstruction on the three-dimensional target body which takes sampling points as the volume data is solved, and the target body surface reconstruction method is suitable for surface reconstruction of the target body which is high in noise content or flat in appearance, inconsistent in sampling in all directions or undersampled.

The invention relates to the technical field of voice semantics, and discloses a statement intention identification method. The statement intention identification method comprises the following steps:preprocessing an original statement sample to obtain a preprocessed sample; extracting a statement feature vector from the preprocessed sample; based on the statement feature vector, training a statement intention identification model by using a cross entropy cost function method to obtain a trained statement intention identification model; obtaining a to-be-identified target statement; based onthe target statement, outputting a statement intention corresponding to the target statement by using a trained statement intention identification model; and obtaining an answer matching the statementintention corresponding to the target statement from an answer database, and displaying the answer to a user. The invention further provides a statement intention identification device and a computerreadable storage medium. According to the statement intention identification method, the abstract features of the voice can be extracted by using the deep neural network, and the statement can be identified more accurately.

The invention discloses an unmanned aerial vehicle formation path planning algorithm based on a three-dimensional global artificial potential function. The algorithm is mainly used to solve problems of formation maintenance of an unmanned aerial vehicle, path planning, three-dimensional obstacle avoidance and the like under a three-dimensional space environment. The algorithm comprises the following steps of firstly establishing a mathematic model of a global potential function under a three-dimensional space; then according to an expected formation, establishing a formation geometry equation of the unmanned aerial vehicle under the three-dimensional space; and finally, establishing a formation unmanned aerial vehicle kinematics equation containing a formation constraint. In the method, through the formation geometry equation, a geometric relation of the plurality of unmanned aerial vehicles under the three-dimensional space is established; and a penalty function method is used to solve a constraint dynamics equation so as to acquire a flight path of the formation unmanned aerial vehicle. Compared to a traditional classic artificial potential function, by using the algorithm of the invention, a two-dimensional space limitation problem of a two-dimensional classic artificial potential function can be solved and problems that a local minimum value exists in a classic potential function and so on can be solved too. By using the algorithm of the invention, limitation of the two-dimensional classic potential function and path planning of the formation unmanned aerial vehicle can be effectively solved.

The invention relates to a combined function method for realizing multiple functions of refrigeration and heating and the like. A tri-supply method for realizing refrigeration, heating and hot water supply of the invention integrates a solar-cooling-tube refrigerating system, a trans-critical CO2 heat-pump circulatory system and a hot water circulatory system. The combined function method of the invention, by combining a solar-cooling-tube absorption refrigerating system and a trans-critical CO2 heat-pump system and integrating the strength of the two independent system to recover the defects of each system, can meet the demands of refrigeration in summer and heat supply in winter as well as the demands of hot water supply all year round, and has not only great strength on environmental protection, but also promising potential of energy conservation. The combined function method, which integrates a heat-pump air-conditioner and a hot-water-supply system in one body, not only ensures the compact structure in the implementation of the whole method, but effectively increases utilization rate of equipment.

The invention relates to a method for deciding an agile satellite earth observation task pretreatment scheme. A new target area decomposition and combination method is provided; a multi-attribute utility function is constructed according to a pretreatment method; task scheduling pretreatment schemes are sorted and selected according to the multi-attribute utility function method; a point target describing method based on 'moment-gesture' and a region target feature describing method based on time gesture vectors are provided; the describing method is utilized to provide a target decomposition and combination method in the pretreatment; for different parameter generating schemes, the optimal treatment scheme is selected through the multi-attribute utility function method.

The invention discloses a multi-AGV scheduling method based on petri network decomposition. The method comprises the following steps: step 1, converting a warehouse topological graph into a collision-free petri network model; decomposing the whole petri network model into sub-networks according to the drivable route of the single AGV; step 2, adopting a Dijkstra algorithm to realize global shortest path planning of the single AGV, and further adjusting the obtained algorithm according to the actual motion condition of the vehicle; step 3, establishing a target function; step 4, taking a staticshortest path obtained by a single AGV in each sub-network as a basis; using an external point penalty function method to carry out path iteration, obtaining collision and deadlock problems existingin the operation process of multiple AGVs, analyzing and locally optimizing the types of collision and deadlock, locally optimizing the path by taking time optimization as a principle, and generatingan optimal collision-free scheduling scheme. The method is high in operation efficiency, high in reaction speed and high in adaptability.

The invention discloses a life service function (friend making, travel friend fining, recruitment, designated driver finding and the like) method based on a mobile Internet. The method comprises the following steps that a service demander / a service provider issues a demand / service providing information through mobile terminals; a server acquires a matching degree between service information and providing information through matching a label content of the information; the server sends service providing / service demand information whose a service demand / service providing information matching degree exceeds a set threshold and which is issued by the service demander / the service provider to the mobile terminals of the information service demander / the service provider. The invention also discloses a life service function system used for realizing the above method. Compared to the prior art, by using the method and the system of the invention, the information issued by the information service demander and the service provider is automatically matched in an assigned geographic area or a group; the information with the high matching degree is specifically sent to the user; information capturing is accurate and rapid and a life service efficiency can be effectively increased; people is promoted to love each other, positive energy of the society is developed and expanded, and a good application and a good popularization prospect are possessed.

The invention relates to a power MOS device temperature rise and thermal resistance component test device and method and belongs to the power MOS device reliability design and test field. According to the test device and method of the invention, a fast switching switch of drain-source voltage and gate-source voltage signal control of a tested power MOS device and a fast switching switch of drain-source high-current work are designed; and an FPGA is adopted to design the acquisition and setting function of drain-source voltage, gate-source voltage and drain-source current. In a testing process, a temperature-sensitive parameter curve is obtained at first; operating current is applied to the device, so that the temperature of the device can rise; after the output power of the device achieves a steady state, the operating current is cut off, and test current is switched on; the junction voltage of the drain-source parasitic diode of the power MOS device is acquired, so that the junction temperature curve of the device can be obtained correspondingly; processing analysis is carried out through adopting a structural function method, so that the thermal resistance components of the power MOS device can be obtained. With the power MOS device temperature rise and thermal resistance component test device and method of the invention adopted, the problems of high prices of test instruments, complicated operation of measurement technologies and long measurement period can be solved.

The invention provides an event triggering-based control method for a T-S fuzzy network system. Stability and H<infinity> performance analysis is conducted on nonlinear NCSs based on an event triggering mechanism. A system model is built through a T-S fuzzy model; a transmission strategy of the event triggering mechanism (ETM) is provided by adopting a relative error threshold idea on the basis ofthe system model; a corresponding state feedback controller is designed by introducing a parallel distribution compensation (PDC) technology; and by constructing an appropriate Lyapunov-Krasovskii function method and combining a linear matrix inequality (LMI) idea, a sufficient condition for ensuring the mean square stability of the system and an index for ensuring the system to meet the certainH<infinity> performance are obtained.