52results about How to "Comprehensive indicators" patented technology

The invention discloses a system for evaluating adequacy of a power supply system, comprising a generating capacity adequacy evaluating module, a network power supply vulnerability evaluating module and a system unit adequacy evaluating module, wherein the system unit adequacy module specifically comprises a unit power supply capacity adequacy evaluating module, a unit power transmission capacity adequacy evaluating module and a power transmission cross section/channel power transmission capacity adequacy evaluating module. System running personnel can select a certainty criterion or a probability risk criterion as an adequacy evaluating standard according to actual requirements. By adopting the system disclosed by the invention, content and indexes of power supply system adequacy evaluation are enriched, evaluation feasibility and effectiveness can be improved, scientific evidence can be provided for system running planning, and a weak link which exists in the power supply system can be identified.

The invention relates to a credit assessment technology, and aims to provide a personal credit assessment method and system based on fusion neural network feature mining. The method comprises the steps that behavior data of an individual user are preprocessed and checked and then subjected to matrix processing, and the obtained data serve as input of an LSTM model and a CNN model at the same time; in the LSTM model, sequentially processing by an embedding layer, a bidirectional long short-term memory neural network and an attention mechanism layer, and outputting a time sequence behavior feature vector extracted from the data; in the convolutional neural network model, processing is carried out through a convolutional layer and a pooling layer in sequence, and local behavior feature vectors extracted from the data are output; and carrying out vector splicing on the two types of feature vectors, taking the spliced feature vectors as input of an XGBoost classifier, and carrying out training to finally obtain a personal credit evaluation result. Compared with the prior art, the method has the characteristics of comprehensive index coverage, wide processing index source, advanced modeling mode, flexible model expansion, complete and effective feature extraction and accurate result.

The invention discloses a voltage weak region evaluation method for an alternating current system at a direct current receiving end. The voltage weak region evaluation method comprises the steps of calculating the sensitivity of an alternating current node voltage relative to direct current falling point reactive power by taking a load static voltage characteristic-considered alternating current direct current power system power flow equation as the basis; next, based on a continuous power flow method, calculating the static voltage stability margin of a near region alternating current node of the load static voltage characteristic-considered direct current falling point; and finally, obtaining the voltage weak region evaluation index by comprehensively considering the two indexes. According to the method, in the voltage weak region evaluation process, the reactive-voltage sensitivity and static voltage stability margin are taken into comprehensive consideration, so that the indexes are more all-around; and meanwhile, the load static voltage characteristic is taken into consideration in the sensitivity and static voltage stability margin calculation, so that the obtained result can better reflect the operation law of the system, thereby promoting guidance in subsequent control strategy formulating.

The invention relates to a Chinese ephedra medicinal material, and a content determination method of three alkaloids in a preparation thereof. The method has the characteristics that: a common reversed-phase column and a non-buffer salt which is a mobile phase of acetonitrile-methanol-0.1% phosphoric acid with a volume ratio of 1-1.5:4-4.2:94.5-95.0 are adopted; at 207+/-2nm, contents of ephedrine hydrochloride, pseudoephedrine hydrochloride, and ephedrine methyl hydrochloride in the Chinese ephedra medicinal material and the preparation thereof are simultaneously determined. A sample is only processed through water-containing methanol ultrasonic extraction and alumina impurity removing, such that a near-colorless transparent solution is obtained. The method is simple, fast, reproducible, and accurate. According to the quantitative chromatogram of the three alkaloids, a baseline is stable, peak separation is good, and the peak appearing is completed within 20min. Compared with a traditional method with a buffer-salt solution, a specific chromatographic column, and unconventional organic phase ratio and flow rate, with the method provided by the invention, instrument and chromatographic column service lives are prolonged, cost is reduced, and detection conditions are communized. The method is suitable for popularization and application of basic units.

The invention discloses a medical resource scheduling platform, which comprises a medical resource allocation system, wherein the medical resource allocation system comprises a medical resource allocator, an operation module and a plurality of medical resource terminals. The medical resource scheduling platform can schedule and match medical resources systematically in an online method by means of the internet through using the medical resource allocation system, so as to improve the matching efficiency and accuracy degree of the medical resources. In addition, the medical resource scheduling platform further comprises a doctor-end identity authentication system, which can achieve the effect of improving the authenticity and authentication efficiency of doctor identity authentication. Moreover, the medical resource scheduling platform comprises a searching and matching system, which makes a doctor searching and matching result more precise.

The invention relates to a method for assessing network performance and an apparatus thereof. The method comprises the following steps of selecting a plurality of indexes; measuring a current network, measuring each index repeatedly in a preset time quantum and acquiring measured values; according to the acquired measured values, determining a threshold of each index; calculating data deviation difference values of all the measured values of each index and the threshold respectively; processing the acquired data deviation difference values and acquiring an index value of each index; and carrying out weight processing on all the index values and acquiring an integration index value F assessing network performance. By using the method for assessing the network performance and the apparatus thereof, a plurality of network performance indexes are evaluated integrally; when a new index is added, an evaluation mechanism does not need to be reenacted, and adaptability is high; and according to a user assessment demand, the plurality of indexes are selected to carry out integration evaluation, and evaluation to network quality is objective and reasonable.

The invention discloses an automatic test system and method for a DC-to-DC power supply module. The system comprises an upper computer, a communication module, a programmable power supply, a digital oscilloscope, an electronic load, a digital multimeter, a clamp, a bar code scanning device and a cabinet. The invention belongs to a high-speed and high-stability automatic DC-to-DC test power supplymodule system, and upper computer software performs overall workflow control including information transmission and communication of the programmable power supply, the electronic load, the digital oscilloscope, the digital multimeter and the bar code scanning equipment. The programmable power supply and the electronic load simulate and build the working condition of the tested DC-DC power supply module, and the digital multimeter and the digital oscilloscope perform data acquisition and return the data to the upper computer when the tested power supply module works; automatic testing of 14 parameter indexes of the DC-to-DC power supply module is realized, and the testing comprehensiveness and the testing efficiency are improved.

The invention provides an electric informatization intelligent monitoring and management system which comprises a digital terminal, a bus gateway, a local area network, a local area network interchanger and a management system, wherein the digital terminal and the bus gateway are both installed in a tail end power distribution box, and the management system is installed in a computer; the digital terminal is connected with the bus gateway through a bus; the bus gateway is connected with the local area net through an ether network cable; the management system is connected with the local area network through the local area network interchanger; the management system comprises a database unit, a data acquisition unit and an electric informatization management unit. According to the electric informatization intelligent monitoring and management system, the functions of electric informatization management, real-time remote motoring and safety and protection for electric equipment are integrated, and electric safety management and energy-saving strategies in an active mode are achieved.

The invention aims to provide a protein suspension chip capable of quantificationally detecting bacterial toxin and the preparation method thereof, and particularly relates to a protein suspension chip which is suitable for quantificationally detecting and analyzing staphylococcal enterotoxin. The method has high sensitivity and high particularity, good detection capacity and wide dynamic range and builds a novel detection modularity platform.

The invention provides a network advertisement effect statistical method and system. The method comprises the steps of recording a browsing behavior of a user after browsing an advertisement page by utilizing a front-end log; performing statistics on browsing behaviors of the front-end log record to obtain an omnibearing statistical result index; and presenting the statistical result indexes. According to the statistical method and system for the network advertisement effect, provided by the invention, comprehensive and accurate statistics can be carried out on the putting effect of the internet advertisement.

An embodiment of the invention provides a method of quantifying a defense result and a system thereof. The method comprises the following steps of acquiring a suspected data flow set, wherein the suspected data flow set is located at a defense terminal of a cloud platform and is formed by data flows corresponding to each suspected IP address in a suspected IP address set contained by an original data flow; acquiring a normal data flow, wherein the normal data flow is the residual data flow after the defense terminal cleans the suspected data flow set according to a preset defense strategy; acquiring a host performance parameter, wherein the host performance parameter is a parameter set extracted and acquired from a target terminal after the defense terminal sends the normal data flow to the target terminal; and based on a target parameter set, quantifying the defense result, wherein the target parameter set at least includes the suspected data flow set, the normal data flow and the host performance parameter. Evaluation angles and indexes used for calculating the defense result are comprehensive so that the defense result is accurate.

The invention discloses a method for detecting m-benzene dimethyl isophthalate-5-sodium sulfonate purity by liquid chromatography. The method incudes using FL2200 liquid chromatograph, an N2000 chromatographic workstation and chromatographic column Kromstar C18 in 4.6X150 mm and 5 micrometers, the volume ratio of mobile phase a and mobile phase b is 80-90 to 10-20, detection wavelength is 220 nm, flow velocity is 0.8 mL/min, sample injection volume is 20 microliters, and columnar temperature is at 30 degrees Centigrade. By the method, detection time is shorter than 10 minutes, analysis accuracy is up to 0.01 ng, reproducibility is good, relative error is 0.2%, operation is simple, analysis is fully automatic, and quality of m-benzene dimethyl isophthalate-5-sodium sulfonate is effectively controlled.

The invention discloses an evaluation method suitable for underground coal mine gas extraction drilled hole drilling sealing quality detection, and relates to the field of mining industry evaluation.The evaluation method comprises the following steps that S1, the grading standards of different types drilled hole evaluation items are determined; S2, the influence weight of the different evaluationitems on hole sealing quality is calculated; S3, the hole sealing quality of drilled holes to be evaluated is evaluated according to the actual measurement condition; and S4, the drilled holes are classified according to the evaluation result. Therefore, the drilled hole utilization quality is improved specifically, and the index scientificity, comprehensiveness and operability are improved.

The invention discloses a landslide early warning device based on monitoring multiple indicators, which is composed of a power supply system, a monitoring system and a data integration processing system. Monitoring components, data integration processing system includes data collection module, data processing module, early warning module, image display and wireless transmission module; The rainfall, rainfall intensity, vertical moisture content in the slope body and tension data in the landslide hazard area are sent to the monitoring background. The landslide early warning device of the present invention can monitor the deformation of the slope, the rainfall on the upper part of the slope, and the vertical water content of the slope in real time, and issue an early warning of the danger of slope instability under specific circumstances, and has the advantages of all-weather, high precision, and few human interference factors.

The invention discloses a driver fatigue detection method based on multi-source information fusion difference judgment, and the method comprises the steps: building a fatigue index system based on multi-source driving information, and determining the threshold values of all fatigue indexes in the system; setting a weight coefficient Pi of each fatigue index; calculating a fatigue degree index Fi for the fatigue indexes exceeding the threshold; based on the fatigue degree grading table, determining the fatigue degree according to the calculated fatigue degree index Fi. According to the driver fatigue detection method provided by the invention, multi-dimensional indexes are fused, fusion judgment is carried out based on confidence degrees and risk levels of the indexes, difference evaluationon the driver fatigue degree is realized, and the driver fatigue detection method has the advantages of more comprehensive indexes and more accurate judgment.

The invention discloses a preparation method of a zero-adding charcoal-roasted okra bean coffee powder. The preparation method comprises the following steps of cleaning and soaking; enzyme deactivating at high temperature; sand frying, oil reducing and fragrance extracting; deep roasting for obtaining coffee fragrance; grinding by a stone grinder; cooling by an air conditioner. The preparation method has the advantages that under the condition of no adding of coffee bean and derived essence and spices, the most basic feature of the charcoal-roasted coffee bean, such as heavy fragrance, can beobtained; under the condition of no adding of any thickener, the quality stability of the okra bean coffee powder is high through the technology time, temperature and speed, and the soft smooth mouthfeel which seldom can be realized by roasting of the charcoal-roasted coffee powder can be realized; under the condition of no adding of sugar products, the polysaccharide substance can be furthest released through the whole technology of roasting, temperature and time, so as to produce proper sweet degree, and realize the zero-add sugarmaking product; the nutritional components in the okra bean can be furthest reserved, the physical and chemical active components which cannot be realized in common coffee products are provided, and the full-zero product with eating safety can be truly realized.

The invention relates to a low-odor low-volatility polyvinyl chloride material and a preparation method thereof. The low-odor low-volatility polyvinyl chloride material comprises the following components in parts by weight: 100 parts of PVC resin powder, 30-50 parts of an environment-friendly plasticizer, 5-10 parts of epoxidized soybean oil, 0.1-0.5 part of a heat stabilizer, 0.2-0.6 part of a lubricant and 0.5-5 parts of a deodorant. The PVC resin powder and the epoxidized soybean oil are placed in a mixing machine to be stirred and mixed for 10-30 min, then the environment-friendly plasticizer, the heat stabilizer, the lubricant and the deodorant are added, the temperature is increased to 100-150 DEG C, stirring reaction is conducted for 2-4 h, then the mixture is put into a double-screw extruder to be extruded, and molding is conducted after granulation. Compared with the prior art, the PVC material obtained by the invention has the advantages of environmental protection, low precipitation, low odor, low volatilization and the like.

The invention discloses an indoor manual ravine stream device capable of simulating a ravine stream ecological system. A hollow-square water tank with an opening in the top is included, an entity partis arranged in the middle of the hollow-square water tank, a sunken position is arranged in the middle of the entity part, the sunken position is used for placing of a nutritive salt adding device, the same number of stones derived from a ravine stream to be researched are evenly placed in the hollow-square water tank, a telescopic steel structure support is mounted over the hollow-square water tank, a fluorescent lamp and an illumination regulation device are arranged on the steel structure support, a temperature and humidity monitoring instrument is further included, multiple concave inserting openings are formed in the inner walls of the two sides of the hollow-square water tank, a motor is connected with a motor rotating speed controller, a connecting shaft of the motor is fixedly provided with a wheel paddle, a water flow capable of circularly flowing is arranged in the hollow-square water tank, a water inlet and a water outlet are formed in the hollow-square water tank, and areconnected with a water pump and a hose correspondingly, a screen net is arranged at the connecting position of the hose and the water pump, a photometer is arranged on the indoor manual ravine streamdevice, and the invention further discloses a method using the device for carrying out an experiment.