88results about How to "Correction bias" patented technology

In one aspect, a system for implementing a copy number variation analysis method, is disclosed. The system can include a nucleic acid sequencer and a computing device in communications with the nucleic acid sequencer. The nucleic acid sequencer can be configured to interrogate a sample to produce a nucleic acid sequence data file containing a plurality of nucleic acid sequence reads. In various embodiments, the computing device can be a workstation, mainframe computer, personal computer, mobile device, etc.

The computing device can comprise a sequencing mapping engine, a coverage normalization engine, a segmentation engine and a copy number variation identification engine. The sequence mapping engine can be configured to align the plurality of nucleic acid sequence reads to a reference sequence, wherein the aligned nucleic acid sequence reads merge to form a plurality of chromosomal regions. The coverage normalization engine can be configured to divide each chromosomal region into one or more non-overlapping window regions, determine nucleic acid sequence read coverage for each window region and normalize the nucleic acid sequence read coverage determined for each window region to correct for bias. The segmentation engine can be configured to convert the normalized nucleic acid sequence read coverage for each window region to discrete copy number states. The copy number variation identification engine can be configured to identify copy number variation in the chromosomal regions by utilizing the copy number states of each window region.

The invention discloses a puncture trocar. The puncture trocar comprises an outer thimble with a needlepoint and needle cores hidden in the outer thimble. The puncture trocar is characterized in that the needle cores are made of elastic materials; the upper segments of the needle cores are arc-shaped; a side hole matched with the arc-shaped needle cores is arranged at the side, which is close to the needlepoint, of the outer thimble; and the side hole is communicated with the inner cavity of the outer thimble so that the puncture frequency is reduced, the puncture success rate is increased, the damage to channel tissues is reduced to the greatest extent, and operation of more bigger targets can be realized.

The invention discloses an installation device for an offshore wind generating set. The installation device comprises a positioning mechanism, a fan, a six-dimensional parallel mechanism, a tower pedestal platform and a crane ship; the six-dimensional parallel mechanism is fixed on the tower pedestal platform through the positioning mechanism; the fan penetrates through the six-dimensional parallel mechanism and is fixed through the six-dimensional parallel mechanism; and the crane ship is connected with a fixing mechanism. The six-dimensional parallel mechanism with three working units is adopted in the installation device and does not have a working dead angle, so that deflection of positive deviation and negative deviation of a fan tower cylinder can be realized, and bolt holes in a bolt hole cylinder tower pedestal on fan tower cylinder flanges are quickly aligned. The six-dimensional parallel mechanism can play a role in buffering when the fan tower cylinder declines, so that collision impact between the fan tower cylinder and the tower pedestal is reduced. The six-dimensional parallel mechanism has a series of advantages of high rigidity, high speed, high bearing capacity, small errors, high precision, good power performance and the like and is easy to control, so that positioning and buffering integration of the fan tower cylinder can be realized, and the manufacturing cost is greatly reduced.

The invention provides a multi-source coordinated optimization control method and a system thereof for an active distribution network, comprising: realizing global optimal control for all controllabledistributed power supply units accessing the entire active distribution network on a long-term scale and realizing regional autonomy control on a short-term scale on the basis of global optimizationcontrol on the long-term scale. The technical solution provided by the invention corrects the deviation between the actual load and the intermittent energy generation and the prediction curve, and atthe same time, greatly alleviates the influence on the feeder outlet power caused by the load and intermittent energy generation power fluctuations since the distributed power source of each autonomous region is fully utilized in the process of the autonomous control to participate in the coordinated adjustment.

The invention relates to a virtual reference tag-based RFID (Radio Frequency Identification) positioning method and system. The system includes a set of tag antennas, a set of reader antennas, a set of tags to be positioned, and a processor. According to the virtual reference tag-based RFID (Radio Frequency Identification) positioning method and system of the present invention, a tag fingerprint space is established according to the signal strength and phases of the tag antennas; and the tags to be positioned in the tag fingerprint space are positioned through using the tag fingerprint space.Since a dual-attribute interpolation method is adopted, phase information is considered on the basis of the traditional signal strength dimension, and interpolation is performed on the parameters of the two dimensions, namely, signal strength and phases, so that a virtual reference tag is additionally adopted; and therefore, the accuracy of the method and system of the present invention is higherthan that of a technique that performs interpolation on a signal feature attribute to obtain a virtual tag, and the number of tags is not required to be increased, and errors introduced by interference between tags can be effectively avoided, and a positioning effect is more accurate.

The present invention provides an electronic component moving device, surface mounting machine and IC automatically conveying device, wherein, the electronic component moving device comprises suction head unit (4, 5) moving along the horizontal direction on the substrate (2) and arranged in specified direction in order to support plurality of suction heads (43-45), and it is equipped with a first driving device (61) for making the first suction head (43) move in Y-direction and a second driving device (71) for making the second and third suction heads (44, 45) in X-direction. At least the synchronous suction or synchronous placing for the electronic component can be actualized more reliably by adopting the present invention, thereby efficiency can be improved.

The invention provides a three-dimensional modeling method nuclear system combining a dome-screen camera and a depth camera, which relates to the technical field of three-dimensional imaging modeling.The system at least comprises the depth camera and a dome-screen camera. The method comprises eight steps that S1, a dome-screen camera lens and a depth camera lens are fixed at the same position inthe space; S2, photographing is carried out by using the dome-screen camera; S3, preliminary positioning is carried out through a VSSLAM algorithm; S4, the three-dimensional information and space information in the three-dimensional picture are adopted for calibration; S5, further accurate positioning is carried out; S6, a dense point cloud is formed; S7, the accurate dense point cloud is furtherobtained; S8 digital modeling is carried out to generate a three-dimensional model; S9 mapping of the three-dimensional model is automatically carried out according to the color information in the two-dimensional panoramic photo. The invention is advantageous in that the three-dimensional model has the advantages of the dome-screen camera and the depth camera at the same time, and the three-dimensional model is more accurate; the defects that the angle of the depth camera is single, the vision field is limited, and the dome-screen camera is prone to generating errors are solved.

The invention relates to a method for correcting an urea spraying quantity. The method comprises the steps of: obtaining a corrected MAP of the urea spraying quantity about accumulated working time of an urea nozzle through calibration; calculating a target urea spraying quantity under real-time working conditions according to an engine rotating speed, a circular oil spraying quantity, an exhaust temperature, an exhaust flow and a real-time NOX mass flow; and determining a MAP point corresponding to the real-time working conditions in the corrected MAP according to the accumulated working time of the actually used urea nozzle and the calculated target urea spraying quantity, obtaining correcting coefficients of the urea nozzle under the real-time working conditions, and correcting the calculated target urea spraying quantity. In addition, the invention further proposes a system for realizing the method; and the system comprises a corrected MAP storage module, a calculating module and a correcting module.

A mold clamp force detection method for detecting a mold clamping force based on an output from a strain detector (30) installed on the mold clamping device of a molding machine. A first output value output from the strain detector (30) is detected when the mold clamping device is in a fully opened state. While the mold clamping force is generated by the mold clamping device, a second output value output from the strain detector (30) is corrected based on the first output value. The mold clamping force is provided based on the corrected second output value. The output from the strain detector (30) is converted into a digital value and corrected or, by using a strain gauge (50), a reference voltage fed to the comparison amplifier of the strain gauge is changed based on the first output value.

The invention discloses a correction method of an extinction coefficient below low clouds in laser radar retrieval. The method comprises the following steps: afresh assigning data of the height area of the clouds through a spline interpolation technology according to a signal above the clouds and a signal below the clouds to obtain a new fitting signal free of the clouds, and carrying out retrieval to obtain a near ground extinction coefficient which is not affected by the clouds and is used for replacing an extinction coefficient of a corresponding height in an original extinction coefficient in order to effectively correct a retrieval result deviation caused by the clouds.

An insertion delay subassembly includes a support member which is configured to mount to the circuit board, and a lever coupled to the support member. The lever is configured to reside in a first orientation relative to the support member when the circuit board initially engages with a card cage, and pivot from the first orientation to a second orientation relative to the support member when the circuit board subsequently installs fully within the card cage. The insertion delay subassembly further includes an insertion delay latch coupled to one of the support member and the lever. The insertion delay latch is configured to selectively (i) block movement of the lever from the first orientation to the second orientation, and (ii) enable movement of the lever from the first orientation to the second orientation.

Provided is a method of generating correction data of an image display device with which correction values do not become a huge amount and an image can be highly accurately corrected. The method of generating correction data of an image display device comprises: a distribution detecting step S21 of detecting distribution of an output characteristic value of an image displayed on a screen; a contour line interval setting step S22 of setting the interval of a contour line connecting pixels of approximately equal output characteristic values on the basis of the distribution of the detected output characteristic value; a contour line setting step S23 of setting a plurality of contour lines based on the set contour line interval; a node setting step S25 of setting a plurality of nodes on each of the set contour lines; a divided element setting step S26 of dividing the inside of the image displayed on the screen into a plurality of element regions on the basis of the set node; and a correction value setting step S27, S28 of setting a correction value for each of the divided element regions.

A method for performing an electrophysiological analysis implemented in a system includes: a series of electrodes to be placed on different regions of the human body; a DC voltage source controlled so as to produce DC voltage pulses; a switching circuit for selectively connecting the active electrodes to the voltage source, the active electrodes forming an anode and a cathode, and for connecting at least one other high-impedance passive electrode used to measure the potential reached by the body; and a measuring circuit for reading data representative of the current in the active electrodes, and data representative of the potentials generated on at least certain high-impedance electrodes in response to the application of the pulses, the data allowing a value to be determined for the electrochemical conductance of the skin. The method also regenerates a high-impedance electrode connected to the voltage source as a cathode.

A method for calibrating the sub-pixel size of the surface particulate pollutant of a large-diameter reflector is provided. The object of the present invention is to solve the low precision of a conventional pixel-level size calibration method. The method comprises the steps of 1, dividing an entire light-passing area into 4*4 sub-areas, producing a calibration plate having the same size as each sub-area, and disposing silica particles of different sizes on the calibration plate; 2, successively placing the calibration plate on different sub-areas evenly determined on the surface of the reflector, and separately collecting the calibration plate images in different sub-areas; 3, obtaining the position coordinates, the pixel area, the pixel diameter, and the total grayscale information of the particulate pollutant in the images; 4, measuring the actual diameter and the actual area of the particulate pollutant by a super depth-of-field microscope; and 5, training a pollutant area and diameter calibration model, and estimating a test sample by the trained pollutant area and diameter calibration model. The method is used in the field of surface particulate pollutant sub-pixel size calibration.

Provided is a wide-spectrum-band diffraction optical imaging system. The wide-spectrum-band diffraction optical imaging system comprises an optical module, a detector module, and an image restoration module, the optical module comprises a harmonic diffractive optical element and a wave-front coding element, lights are collected to images via the harmonic diffractive optical element, aberration modulation of the collected lights is performed via the wave-front coding element, the detector module receives the modulated lights for photoelectric conversion and obtains the images, the image restoration module processes the images outputted by the detector module, removes the modulation effect of the wave-front coding element on the collected lights, and eliminates the aberration with the combination of modulation information of the collected lights by the wave-front coding element, and the images are obtained. According to the wide-spectrum-band diffraction optical imaging system, the harmonic diffractive optical element is regarded as the main lens of the optical system, the characteristic of achromatism of the harmonic diffractive optical element and the characteristic of aberration correction of the wave-front coding technology are employed, the spectrum bandwidth is wide, the complexity and tolerance constraint of the system are reduced, and the diffraction optical imaging system is more easily realized.

The invention discloses an electric vehicle charging load prediction method based on ammeter data, and mainly solves the problem that the existing prediction method needs a large amount of information such as traffic flow and position. The method comprises the following steps: (S1) acquiring a charging load of an electric vehicle of a user according to collected electric meter data of the residential user; (S2) input feature selection: according to the identification result of the charging load of the electric vehicle, combining with the total power data of the intelligent electric meter to serve as input data of a prediction network to be constructed; (S3) constructing a prediction network: mining an incidence relation of input data by using CNN-LSTM to obtain an important feature vector, and adding the feature vector into a Dropout layer to prevent overfitting; (S4) outputting a charging load prediction result of the electric vehicle and a total power prediction result of the intelligent electric meter; and (S5) updating the prediction network in a rolling manner. The method can effectively improve the prediction precision, the data type required for prediction is only household electric meter data and is easy to obtain, load density, distribution and the like do not need to be taken, and the operation is simple and convenient.