46results about How to "Visual assessment" patented technology

The invention discloses an in-vitro intervention embolism therapy simulation system which comprises a micro-vessel simulation area, a blood flow simulation area and a pressure monitoring area. The micro-vessel simulation area is placed in a constant temperature device and communicated with the blood flow simulation area through a pipeline, the pressure monitoring area is used for monitoring a pressure value in the pipeline, and the micro-vessel simulation area comprises a micro-fluidic chip. According to the in-vitro intervention embolism therapy simulation system, the difference of terminal embolism performances is quantified by observing pipeline classification in the chip plugged by different embolism agents, so that the terminal embolism performances of the different embolism agents can be more visually evaluated, and a simpler and more convenient data accumulation program is provided for research and development persons. Besides, the performances of the embolism agents are more effectively understood, clinical risk is reduced, blood flow washing resistance effects of the different embolism agents can be accurately analyzed in the pressure monitoring area under different conditions, so that embolism strength is evaluated in vitro, and blood vessel recanalization time can be monitored.

The invention discloses a power transformer winding deformation on-line detection method based on pulse coupling injection, and belongs to the technical field of electrical equipment on-line detection. The method comprises the steps that (1) a high-voltage nanosecond square-wave pulse generator generates high-voltage nanosecond pulse signals; (2) the high-voltage nanosecond pulse signals are injected into a protection circuit through signal injection and transmitted into a transformer signal sensor installed on a transformer casing pipe to be coupled to a winding; (3) a data acquisition module acquires the high-voltage nanosecond pulse signals and current response signals of the neutral point of the tail end of the winding and converts the high-voltage nanosecond pulse signals and the current response signals into digital signals; (4) a data processing module carries out Fourier transformation on the digital signals, works out a frequency-response curve of the winding, calculates characteristic parameters such as the correlation coefficient and the standard deviation of the frequency-response curve and judges the deformation degree of the transformer winding. By means of the method, non-intrusive on-line detection of winding deformation can be achieved. In addition, the method has the advantages that the detection speed is high, damage to an electric system is avoided, and the cost is low.

The invention provides an intelligent network connecting test system based on a cross-layer collaborative framework for vehicles. An integrated verification and evaluation system which is comprehensive, multimodal, full synchronizing and large scale for the vehicle intelligent network connecting tests is formed by the cross-layer collaborative framework of a sensing layer, a communication layer, an interaction layer, a computation layer and a decision-making layer. The system of the invention overcomes the defects that safety guarantee and large-scale verification are difficult to realize or form in the prior art of testing.

What is provided is a device and method for gentling equine, other animals, and in some cases a human of which is obtained through the actions of massage, grooming and pole-gentling methodologies and protocols in which it is thoroughly and effectively enabled by an apparatus comprised of three essential hand-tool components: the elongated extension-pole control handle, the cylindrical nodulated massage/gentler tool-head attachment shaft that emits auto-mechanical vibration stimulus, and the cylindrical cone-shaped bristle covered massage/gentler, groomer, exfoliator, tool-head attachment shaft which provides dander exfoliation, body and leg stimulus. Used regularly in succession or independently, animal gentling, animal health and core relationship foundations can be achieved and maintained. The present invention provides a more practical, convenient, ergonomic, physical and psychological stress-reduction, and safer method and means to care for and manage feral and domesticated animals, and in some instances in use of massage therapy on humans.

The invention relates to a method for assessing counterforce, in particular to a method for assessing the capacity of a ship countering a magnetic mine. The method for assessing the capacity of the ship countering the magnetic mine comprises the steps that through analysis of the actual measurement condition and analog of a computer, an optimal subdivision scheme of a boundary face is searched for through an intelligent optimization algorithm, so that under the poor measurement condition, accurate continuation of a flat magnetic field of the ship is achieved, and depth calculation is conducted through a boundary integral method, so that depth distribution of the magnetic field below the ship is obtained; through comprehensive analysis of a mine magnetic detonator working system, magnetic detonator movement parameters and a countering assessment index and through the computer analog technology, a ship and magnetic mine countering simulation model is established, the magnetic protective capability of the ship is comprehensively assessed, and a credible assessment conclusion is obtained. The method for assessing the capacity of the ship countering the magnetic mine has the advantages that the continuation accuracy of the flat magnetic field of the ship can be effectively improved under the poor measurement condition; through establishment of the assessment indexes of the mine touch width and a mine touch zone, the capacity of the ship countering the magnetic mine can be visually and effectively assessed.

The invention relates to a risk oriented hazard analysis method for a chemical process device. The risk oriented hazard analysis method is mainly used for solving the problems that in the prior art, when risk oriented hazard analysis is carried out on a chemical process device, time consumption is high, and investment is large. By the adoption of the risk oriented hazard analysis method for the chemical process device, the safety integrity level is determined when a safety instrument system is taken as a protective measure; when the safety evaluation on the functions of the safety instrument system is carried out, a risk graph is used for analyzing the risks related to danger sources, a set of risk parameters are used for evaluating the risk levels, a risk level is assigned to each danger source, and an improved and extended ROHA process risk graph is used for determining the safety integrity level. The risk oriented hazard analysis method is characterized in that according to the technical scheme shown in the ROHA process risk graph (shown in figure 1), the problems are effectively solved, and the risk oriented hazard analysis method can be used for risk oriented hazard analysis of the chemical process device.

The invention discloses a new energy grid-connected system voltage support strength evaluation method and system. The method comprises the steps of determining a first short-circuit ratio index of the new energy grid-connected system based on short-circuit capacity provided for a grid-connected point by an alternating current system in the new energy grid-connected system and equivalent grid-connected capacity of new energy at the grid-connected point; determining a second short-circuit ratio index of the new energy grid-connected system based on the voltage variation at the new energy access grid-connected point; determining a critical short-circuit ratio of the new energy grid-connected system based on parameters of the alternating current system and the equivalent maximum transmission power transmitted to the alternating current system by the new energy; and based on the first short-circuit ratio index, the second short-circuit ratio index and the critical short-circuit ratio, determining the voltage support strength provided by the new energy grid-connected system at the grid-connected point by using a preset voltage support strength evaluation rule.

The invention discloses an intelligent examination system. An electronic admission ticket records personal information of a student, an information inputting device inputs the personal information of the student in the electronic admission ticket, an electronic information acquisition module acquires the personal information of the student recorded inside the electronic admission ticket, an image acquisition module acquires portrait information of the student taking the examination on the current terminal computer, the terminal computer sends the acquired personal information of the student sent by the electronic information acquisition module and the acquired portrait information of the student sent by the image acquisition device to the server for comparison, an examination paper sent by the server is displayed, the server compares the portrait information acquired by the image acquisition module and the personal information of the student acquired by the electronic information acquisition module, the comparison result is sent to the terminal computer, and the examination paper with questions answered is judged. The above system is simple to operate and convenient to use, the student identity authentication accuracy is high, and practicality is high.

The invention relates to a tester used for testing fluid resistance height of a proppant and a testing method thereof. The tester comprises a measuring device, a fluid level sensor and a processer, wherein the measuring device comprises a material containing part used for containing a to-be-measured proppant and a fluid containing part used for containing testing fluid, the fluid containing part is communicated with exterior, and the material containing part is made of dewatering materials; the fluid level sensor is used for being embedded at a position near the upper surface of the to-be-measured proppant; and the processer is used for receiving signals sent by the fluid level sensor and obtaining the height, namely, the fluid resistance height of the testing fluid contained in the fluid containing part when the fluid level sensor senses the testing fluid. According to the tester used for testing the fluid resistance height of the proppant, simulation of formation conditions is not needed, the fluid resistance height of the testing fluid passing through the proppant with scheduled filling thickness can be tested visually under the ordinary pressure condition, and therefore the fluid resistance performance of the proppant can be estimated visually and accurately. Different proppants have different fluid resistance heights under the same testing condition, the higher the values of the fluid resistance heights are, the better the fluid resistance performance is, and the lower the values of the fluid resistance are, the worse the fluid resistance performance is.

The invention discloses a vacuum circuit breaker state evaluation method and system based on radiation electromagnetic wave detection. The method comprises the following steps: acquiring a radiation electromagnetic wave signal generated by a vacuum circuit breaker to be subjected to state evaluation in a switching-on and switching-off process; acquiring the pulse number or pulse decay time of the radiation electromagnetic wave signal; and comparing the acquired pulse number or pulse decay time with a preset pulse number threshold value or pulse decay time threshold value to complete state evaluation of the vacuum circuit breaker. The method achieves the evaluation of the internal state of the arc extinguish chamber of the vacuum circuit breaker based on the pulse number or pulse decay time of the radiation electromagnetic wave signal through an electrical detection means, and has the advantages of being visual, simple, rapid, efficient and the like.

The invention discloses an airborne SAR interference effect simulation method under high-energy microwave interference, and the method comprises the steps: building an airborne SAR radar travel-stop geometric model, carrying out the quick radio frequency echo simulation based on a concentric circle algorithm, and simulating a nonlinear suppression effect on a target echo signal when a high-energymicrowave enters a receiver through building a receiver channel model; and finally, performing imaging analysis by using a distance Doppler algorithm. The airborne SAR software simulation method is high in efficiency and low in cost. According to the invention, the high-energy microwave effect applied to a device-level hardware experiment is converted into the nonlinear suppression effect considered during signal-level software simulation to simulate the influence of high-energy microwaves on the final imaging result, the cost is low, and the flexibility is high.

The invention discloses a three-dimensional attitude prediction method based on pseudo-image sequence evolution. The method comprises the following specific steps: step 1, inputting a joint point coordinate sequence; step 2, converting the joint point coordinate sequence into an image sequence, dividing a human body, and converting the image sequence to obtain a pseudo image sequence; step 3, constructing a sequence-to-sequence model, and predicting a future attitude sequence according to the pseudo-image sequence of the historical attitude; and step 4, outputting an articulation point coordinate sequence of the future attitude sequence. The invention provides a three-dimensional attitude prediction method based on pseudo-image sequence evolution. The method has (1) a new skeleton representation, and an attitude prediction problem being modeled as a video prediction problem; and (2) a new structure PISEP2, which predicts all future frames in a non-recursive manner, can effectively avoid error accumulation and improve the calculation efficiency.

The invention relates to an online handwritten Chinese character recognition algorithm and a visual key stroke evaluation method, and belongs to the technical field of mode recognition. According to the local self-attention mechanism provided by the invention, the attention weight corresponding to the state of the hidden layer at each moment can be generated through the neural network, and the recognition precision of online handwritten Chinese characters can be effectively improved through the attention mechanism. The invention provides a visual key stroke evaluation method in online handwritten Chinese character recognition, and the method comprises the steps: displaying strokes (track points or track segments), which play a key role in recognition, in input character sample track coordinates through a weight generated by a self-attention mechanism; key strokes in an online handwritten Chinese character sample can be evaluated more visually, and the mode of learning the character sample through the neural network is analyzed.

The invention provides a method for evaluating the effectiveness of chimeric antigen receptor-T (CAR-T) cells. According to the method, by co-culturing tumor organs and the CAR-T cells, related cytokines are detected and the interaction between the tumor organs and the CAR-T cells and the morphological change of killed cells are microscopically observed to evaluate the effectiveness of the CAR-T cells, and whether the CAR-T cells have a killing effect on tumor organs or not can be evaluated more visually, accurately and comprehensively; and the method has relatively high accuracy, reproducibility and simplicity and convenience in operation.

The invention discloses a rotary steering tool steering efficiency evaluation method and device, computing equipment and a storage medium. According to the technical scheme provided by the invention, real-time output guiding parameters and target guiding parameters of the rotary guiding tool during underground operation are obtained; generating a guide parameter visual chart according to the output guide parameter and the target guide parameter; vector calculation is carried out on the output guiding parameters and the target guiding parameters, the comprehensive guiding efficiency of the output guiding parameters is determined, and a comprehensive guiding efficiency visualization chart and a comprehensive guiding efficiency quantification chart are generated; and analyzing the guiding parameter visualization chart, the comprehensive guiding efficiency visualization chart and the comprehensive guiding efficiency quantification chart, and evaluating the guiding efficiency of the rotary guiding tool. According to the method, the guiding efficiency in the operation process can be accurately evaluated by analyzing the output guiding parameters and the target guiding parameters of the rotary guiding tool.

The invention discloses a transfer orbit family initial value searching method and system based on a collision zone atlas. The method comprises the steps: applying tangential disturbance to a point on a target orbit, carrying out the integration of a disturbance orbit, marking the disturbance orbit which can impact a main celestial body, and drawing a collision zone atlas between the main celestial body and the target orbit; respectively taking a preset speed increment interval on two sides of each collision zone, randomly taking a plurality of sampling disturbance orbits from the speed increment intervals, and integrating the sampling disturbance orbits to a parking orbit; marking a position direction angle and a speed direction angle when the sampling disturbance orbit intersects with the parking orbit; performing linear interpolation on the speed increment to find out a transfer orbit initial value tangent to the parking orbit and the target insertion point. According to the method, the distribution positions of various tangential transfer families are systematically estimated, the orbits of various transfer types are quickly searched, the number of the tangential transfer orbits of various types is systematically and intuitively evaluated, and a proper initial value is provided for subsequent accurate solution of the transfer orbits.