76results about How to "Guarantee scientific" patented technology

The invention discloses a key node recognition method in a power communication network. The method comprises the following steps: step one, constructing a power communication network node importance evaluation system based on power communication network information; step two, constructing a normalized matrix based on the power communication network node importance evaluation system; step three, comprehensively determining index weight based on an entropy weight method and an analytic hierarchy process; step four, combining the weight vector with the normalized matrix to construct a weighted normalized matrix; and step five, computing based on the weighted normalized matrix to acquire the node importance order, recognizing a key node based on the order result, thereby realizing the technical effect of accurately recognizing the key node in the power communication network.

The invention discloses an operation simulation method, device and equipment suitable for an electric spot market. The method comprises the steps of opetating a case; setting a scene-oriented corresponding to the case; configuring market transaction parameters; selecting and importing basic data and operation data used for simulation into the electric spot market simulation system, and generatingsimulation boundary conditions; issuing electric power market operation information on the electric power spot market simulation system; obtaining transaction application information; performing simulation calculation of the electric power market according to the oriented scene corresponding to the case, the market transaction parameter, the simulation boundary condition and the transaction application information to obtain a simulation result; And the simulation result is evaluated and analyzed, and obtaining evaluation and analysis data of the electric spot market. The method is suitable forthe operation simulation analysis of the electric spot market, and is beneficial to reducing the decision and implementation risk of the electric spot market.

A first purpose of the present invention is to provide a fuzzy comprehensive evaluation method for safety risks of chemical hazards in a food. The method comprises the following steps: S1, detecting the content of each chemical hazardous substance in the food, determining the evaluation value of each chemical hazardous substance, and constructing an evaluation factor set; S2, establishing a comment set of fuzzy comprehensive evaluation: evaluating the food safety risk by taking the national limit standard MRL of food safety as an evaluation standard and adopting a zero/micro, low, medium, highand ultrahigh five-level scaling method; S3, taking the evaluation value of each chemical hazardous substance in step S1 as a calculation basis, and determining the weight of the multi-level risk factor by adopting an entropy algorithm, wherein the original detection data normalization method in the step S1 is revised by adopting a fixed coefficient method; and S4, calculating the safety risk comprehensive evaluation index FSI of the chemical hazard substances at all levels in the food by adopting a fuzzy comprehensive evaluation technology. The calculation method is objective and unified, and participation of subjective factors is effectively avoided.

The invention discloses an atmosphere pollutant automatic monitoring sample-reserving system. The atmosphere pollutant automatic monitoring sample-reserving system comprises an atmosphere pollutant on-line monitor, a main controller, a memory, a sample-reserving controller, and an automatic sample-reserving apparatus. When an atmosphere pollutant in a target environment of an atmosphere pollutanton-line monitor exceeds a standard or exceeds a preset value as a pollution source point location contribution value, the main controller controls the powering-on of the automatic sample-reserving apparatus by controlling the sample-reserving controller to collect the atmosphere pollutant in the target environment, and the automatic sample-reserving apparatus is turned off after collection is completed. The atmosphere pollutant automatic monitoring sample-reserving system uses characteristics of an atmosphere pollutant on-line traceability system and the automatic sample-reserving controller,and through combination of real-time on-line monitoring and off-line analysis, scientificity and accuracy of monitoring data are guaranteed.

The invention relates to a satellite-ground raindrop spectrum parameter matching and evaluating method and system. The method comprises the following steps: S1, acquiring data from different data sources; S2, matching the data of different data sources; and S3, evaluating raindrop spectrum parameter data. According to the method, raindrop spectrum data products of a foundation, an empty foundationand a space foundation can be decomposed, the same element observed by different devices is sorted, and after single elements of multiple devices are subjected to quality control, for the same observation element, Matching cross validation analysis is carried out on direct observation and telemetry data of different observation platforms and different observation inversion methods, similarities and differences are analyzed, and finally analytical validation for instrument levels is established based on raindrop spectrum parameter data, so that high-quality raindrop spectrum parameter data andproduct support are provided for weather forecast and decision service. On the basis of verifying the data quality of the raindrop spectrometer network of the national ground meteorological station,not only is liquid rainfall analyzed, but also solid rainfall can be analyzed.

The invention discloses a power distribution automation system wireless communication channel automatic test system based on a Metlab, is applied to on-site acceptance check of power distribution automation system terminal equipment and is for realization of quantitative testing of wireless communication channels and flexible setting of parameters such as IP addresses of master stations, times of sending data packets, sizes of the data packets, times of cycling of tests and test time intervals. The invention also discloses a power distribution automation system wireless communication channel test result automatic extracting method base on the Matlab. In the method, according to collecting of Ping command return results, a function of test result automatic collecting is realized by means of recognizing of key characters and obtaining of test data of various test contents. The invention also disclosed a power distribution automation system wireless communication channel test report automatic generation method based on the Metlab. According to the method, a test report is resolved into a plurality of sub-portions, and format parameters of the portions are obtained. The related parameters are guided into a self-brought formatting output function of the Metlab, and then subjected to combination to realize a formatting output function of the test report.

The invention relates to a magnetic inductive composite puffing device suitable for electronic cigarettes and low-temperature cigarettes. The magnetic inductive composite puffing device comprises a power supply control part, an atomizing part and a puffing part which are sequentially connected, wherein the atomizing part comprises a hollow outer shell; a base is arranged at one end of the outer shell; a first magnetic induction coil is arranged in the outer shell; a solid smoke forming substance is arranged in a cavity surrounded by the first magnetic induction coil; a first heating element isarranged in a part of the solid smoke forming substance corresponding to the first magnetic induction coil; the magnetic inductive composite puffing device also comprises a tobacco juice atomizing mechanism; and the tobacco juice atomizing mechanism is arranged inside or outside the cavity surrounded by the first magnetic induction coil. The magnetic inductive composite puffing device provided bythe invention can heat the solid smoke forming substances of the low-temperature cigarettes and the tobacco juice of the electronic cigarettes to form smoke at the same time, can effectively combinethe advantages of the low-temperature cigarettes and the electronic cigarettes, overcomes a defect that the low-temperature cigarettes need to wait for more than ten seconds or even longer to form thesmoke, and can be adopted to guarantee a puff number and consistency before and after puffing to the greatest extent.

The invention provides a low-carbon travel carbon emission reduction verification method and system based on travel chain big data. The method comprises the steps of 1) obtaining sample data of traveldata; 2) when the sample data is walking data, turning to the step 3); when the sample data is bicycle data, turning to the step 4); when the sample data is electric bicycle data, turning to the step5); 3) adopting a walking travel distance verification method to perform verification and deduplication on the sample data to obtain a final effective travel distance; calculating the carbon emissionof walking according to the final effective travel distance; 4) adopting a bicycle travel distance verification method to perform verification and deduplication on the sample data to obtain a final effective travel distance; calculating the carbon emission of the bicycle according to the final effective travel distance; 5) verifying and de-weighting the sample data by adopting a verification method of the travel distance of the electric bicycle to obtain a final effective travel distance; and calculating the carbon emission of the electric bicycle.

The invention discloses a laneway side support design method based on weak plane shear and support theories. The laneway side support design method comprises the following steps: building a stress balance mechanical model for a slip failure of rock mass around a half coal and rock laneway along a certain weak plane alpha under the action of external force; judging a critical condition under which a shear failure occurs on surrounding rocks on a half coal and rock laneway side; determining that shearing strength on an inner side of the laneway in a direction of 45 degrees is maximum; building a support mechanical model for the half coal and rock laneway side based on the shearing strength principle that the rock mass needs to be pressed against a largest shearing weak plane on a largest shearing block after being reinforced and supported by anchor rods; and giving a calculation formula for the number n of the anchor rods on the weak planes on the laneway side and a length l of an ith anchor rod in order to design the laneway side support. Through adoption of the method, support materials are reduced; the support cost is lowered; and a beneficial reference is provided for scientific performance and applicability of support parameters.