52results about How to "Expand the scope of analysis" patented technology

The present invention is DL-18 multiple-element aluminium spectrum standard sample and its preparation. The sample contains in pure aluminium 18 kinds of elements or partial of the elements, including Si, Fe, Cu, Mg, Mn, Ni, Zn, Ti, V, Pb, Sn, Ga, Cd, CE, CA, SB, Na and B. The addition method of its 10 kinds of elements is provided. The present invention expands the analysis range to aluminium material for meeting the need of developing new aluminium material.

The invention discloses an argon ion polishing/scanning electron microscope analyzing and sampling method for shale samples including fragile shale core samples and rock debris samples. The method comprises steps of embedding, curing, cutting and polishing. By comparison with a traditional argon ion polishing/scanning electron microscope analyzing and sampling method, the analysis range of the samples is widened with the method, the shale core samples which are fragile in the cutting and sampling processes and the shale rock debris samples with smaller sizes can be analyzed, and meanwhile, the success rate of sampling is increased.

The invention discloses a planar slot array antenna mechanical and electronic comprehensive analysis method based on grid conversion and is used to solve the problems of the existing analysis method that antenna detail deformation information can not be applied, the structured grid is not matched with the electromagnetic grid, and the structural analysis is not connected with the electromagnetic analysis. The method is realized by the following steps: establishing a finite element model of structural parameters according to the structural parameters of an antenna, fining the grid of the finite element model; performing structural analysis to extract a deformed structural model; converting the tetrahedral body element of the structural model to the triangular surface unit; extracting and synthetizing the cavity model of the antenna; converting the cavity model to an electromagnetic analysis model; and performing electromagnetic analysis to obtain the electrical property of the antenna.The invention converts the structural grid of the planar slot array antenna to the electromagnetic grid, integrates the structural analysis and the electromagnetic analysis and obviously increases the analysis precision and efficiency of the antenna; and the method can be used in the analysis and design of the microwave frequency band planar slot array antenna, the reflector antenna and the filter.

The invention discloses a system and method for analysis of Martian mineral components by using double multiplexing laser spectrum. The system includes an optical head, a short wavelength spectrometer, a medium wave spectrometer, a long wavelength spectrometer, a calibration board bracket, a calibration board, a pointing mirror bracket, a two-dimensional pointing mirror, a two-dimensional rotation control component, a pointing mirror control cable and a load controller. Based on the system, the combined detection of atom and molecular can be achieved by combined detection of laser induced plasma spectroscopy and laser Raman spectroscopy. The invention provides a double multiplexing laser spectrum detection system and method; a same pulse laser source and three frequency multiplication modules are used to realize the multiplexing of light sources; and short, middle and long wave spectrometers in the same length and the corresponding spectrum ICCD area array detectors are used to achieve the multiplexing of beam split and spectral detection. In addition, remote micro area imaging and laser self-focusing function are achieved to share a main optical path. The invention effectively expands the scope of Martian mineral analysis, and the system is compact and convenient, reduces the fluorescence interference and improves the comprehensiveness of molecular detection.

The invention discloses a full-automatic headspace sampling device which comprises a sampling needle, a heating furnace, a sample bottle lifting mechanism, a six-way valve, a gas quantifying cup, a pressurizing control valve, a release control valve, a gas phase carrying interface, a gas chromatograph interface and a controller, wherein the sample bottle lifting mechanism is used for driving a sample bottle to move to be in a waiting position, a heating position or a sampling position; the six-way valve has six connection interfaces and can be rotated; and the controller is used for controlling the sample bottle lifting mechanism to drive the sample bottle to move to the heating position from the waiting position after sampling action is completed, used for driving the sample bottle to move to the sampling position from the heating position after heating is completed, or used for driving the sample bottle to the waiting position from the sampling position after sample feeding action is completed. The full-automatic headspace sampling device provided by the invention can completely meet daily analysis requirements of laboratories of common medicine monitoring, environment protection and the like, and is an ideal tool for directly and efficiently extracting volatile organic compounds from any non-volatile organic matters and for feeding samples to gas chromatography analysis.

The invention discloses a mars material composition analyzing system and method adopting an active/passive combined spectrum technology. The system comprises an optical head, a short wave spectrometer, a medium wave spectrometer, a long wave spectrometer, an infrared AOTF spectrometer, a calibration plate, a two dimensional pointing mirror, a pointing mirror control cable, and a load controller. The system can cooperate with an active laser spectrum and a passive infrared spectrum technology to detect atoms, symmetrical molecules, and asymmetric molecules of mars. The active LIBS spectrum detection can quantitatively and qualitatively analyze atoms of a substance. The active time domain laser Raman detection can quantitatively and qualitatively analyze symmetric molecules of a substance. The passive infrared spectrum detection can quantitatively and qualitatively analyze asymmetric molecules of a substance. The active spectrum and passive spectrum are combined to synchronously detect atoms, symmetric molecules, and asymmetric molecules of substances so as to classify and recognize rocks, soil, and minerals in mars. The provided system and method enlarge the analysis range of substances in mars, and the system is compact and convenient.

The invention relates to a preparation and characterization method for a precious metal ultrafine wire EBSD test sample. The comprises the steps: stretching a precious metal ultrafine wire sample andbonding the precious metal ultrafine wire sample to the top end of the inclined surface of a double-inclined sample table; placing the precious metal ultrafine wire sample in a sample bin to select asample section preparation and test area; tilting the sample table, carrying out carbon plating treatment, ion beam cutting and ion beam surface polishing treatment on the sample in the field of viewto obtain a cross section observation sample of the noble metal ultrafine wire without surface stress, and observing and obtaining a microstructure morphology image of a wire cross section observationarea through ion beam channel contrast imaging; tilting the double-tilting sample table until the angle between the observation section and the incident electron beam is 70 degrees, and performing electron back scattering diffraction detection on the section of the ultrafine wire through a CCD detector to obtain an EBSD image and a crystallography signal of the section of the sample micro-area. The EBSD and the ion beam channel contrast image are combined to provide more systematic and comprehensive data support for microcell analysis of precious metal ultrafine wires, and the comprehensive analysis range of samples can be expanded.

The invention provides a characteristic analysis method for a capacitive micromachined ultrasonic transducer (CMUT), which aims at performing effective analysis on displacement, acceleration, sound pressure characteristics and receiving characteristics under the circumstances of different emission signals. The characteristic analysis method for the CMUT comprises the step: firstly establishing an infinitesimal state equation SIMULINK model of the CMUT in an emission state and an infinitesimal state equation SIMULINK model of the CMUT in a receiving state, wherein the infinitesimal state equation SIMULINK model of the CMUT in the emission state comprises a CMUT vibration system module and an electrostatic force module, and the infinitesimal state equation SIMULINK model of the CMUT in the receiving state comprises a CMUT vibration system module, an electrostatic force module and a current output module; the electrostatic force module calculates an electrostatic force Fe by determining parameters, such as driving voltage V, an initial gap g0 between an upper electrode and a lower electrode, and displacement; by determining parameters, such as the electrostatic force Fe, equivalent mass, equivalent spring constant K and equivalent impedance R, the CMUT vibration system module establishes a lumped parameter system, calculates vibration displacement and vibration velocity, and outputs the displacement as feedback quantity to the electrostatic force module, thereby multiplying vibration velocity and radiation resistance to calculate sound radiation pressure.

The invention discloses a method for searching for a new mutation/SNP locus based on double-nucleotide pyrosequeneing-by-synthesis. According to the method, PCR is conducted on the genomic DNAs of a known sequence sample and a mixed sample, pyrosequeneing is conducted on obtained single-stranded PCR products according to a specific double-nucleotide adding method, each sample acquires two groups of double-nucleotide pyrosequeneing-by-synthesis information, and correction is conducted; the two groups of corrected mixed sample sequencing information are compared with the two groups of corrected known sequence sample sequencing information; if neither the two groups of mixed sample sequencing information nor the two groups of known sequence sample sequencing information are changed, it is indicated that the mixed sample sequencing information is consistent with the known sequence sample sequencing information, and no new mutation/SNP locus exists; if the mixed sample sequencing information is different from at least one of the two groups of known sequence sample sequencing information, it is indicated that the mixed sample sequencing information is not totally consistent with the known sequence sample sequencing information, and it shows that a new mutation/SNP locus exists.

The invention provides an association rule optimization algorithm of subjective interest measures on mass data sets. According to the algorithm, composite templates are used for simultaneous optimized analysis and is divided into an overall impression knowledge template (GI) and a relative precise knowledge template (RPC); due to the classification, the user implication expression range is extended, optimization for association rules from different focuses is facilitated; besides, template limiting and containing functions are turned to be reflected on different interest measures which are refined into four types including consistency, consequent unpredictable degree, antecedent unpredictable degree and unpredictable degree, so that the optimization is quite clear; and interest measure calculation models of the composite templates are optimized and combined, and calculation of the interest measures can adapt to a composite analysis environment reasonably.

The invention discloses a method for quantitative determination on methylation by two-nucleotide synthesis pyrosequencing. The method comprises the steps of performing two-nucleotide synthesis pyrosequencing on a PCR product generated by converting a gene group DNA (deoxyribonucleic acid) through a hydrosulphite, and continuously recording each sequencing reaction to acquire sequencing encoding information including types of two nucleotides and a nucleotide synthesis number thereof. Basic groups C in all CG locuses in a determined target area sequence are converted into T with different degrees, and then correlation analysis is performed by using the information acquired by two-nucleotide synthesis pyrosequencing, thus realizing quantitative determination on methylation in the target area sequence. The method can greatly improve a sequencing length, widens the analysis range of traditional pyrosequencing, and is suitable for methylation analysis of single-sample PCR products and mixed-sample PCR product sequences.

The invention discloses a specific time multi-traffic-mode travel distribution analysis method based on OD matrix backstepping, and belongs to the field of traffic planning. The method comprises the following steps: (1) selecting a research area and a specific time period; (2) dividing traffic zones of the research area; (3) carrying out questionnaire survey and establishing a travel database; (4) calculating an initial matrix of travel distribution of various traffic modes; (5) collecting motor vehicle traffic volume data of key road sections; (6) calculating the equivalent total traffic volume of motor vehicles on the key road section; (7) calculating a motor vehicle traffic mode equivalent total travel distribution initial matrix; (8) calculating a motor vehicle traffic mode equivalent total travel distribution matrix; and (9) calculating a travel distribution matrix of various traffic modes. According to the method, questionnaire survey and road section traffic volume data acquisition are closely combined in the aspects of traffic occurrence time, space, traffic modes and the like, and spatial distribution of various traffic modes in a specific time period can be analyzed more accurately.

The invention discloses a remote education big data security early warning method and system based on a cloud platform. The method comprises the following steps: obtaining first course online student information according to first course information; acquiring student learning record information according to the first course online student information; inputting the student learning record information and the preset sensitive word information into a word screening model to obtain a first screening result; obtaining a first word safety evaluation value according to the first screening result and the sensitive word safety coefficient; when the first word safety evaluation value exceeds a preset threshold value, obtaining first student information according to the first screening result; obtaining a first student learning data set through the cloud platform; obtaining a first student safety evaluation value according to the first student learning data set; and when the first student evaluation result exceeds a predetermined threshold value, obtaining safety early warning information. The technical problem that in the prior art, information security in the remote education process cannot be effectively maintained due to the fact that remote education objects cannot be directly supervised is solved.

The invention provides an ACL template dynamic configuration method and device, and relates to the technical field of communication, and the method comprises the steps: obtaining the attribute information of a target service in response to an adding event for the target service, and registering the target service according to the attribute information, wherein the attribute information comprises resource information of the target service and address space information required when the target service is analyzed; determining position information of the target service in a preset ACL template according to the address space information; and finally, according to the target ACL rule and the position information, performing configuration updating on a preset ACL template to obtain a target ACL template. The target ACL rule represents an ACL rule corresponding to the resource information. According to the invention, the preset ACL template is configured and updated in a user-defined manner according to the actual demand of the target service, so that the use efficiency of the target ACL template is improved, and the analysis range of the target ACL template to the target service is increased.