Environment-protecting granular wooden fuel and its production process

The present invention relates to granular wooden fuel and its production process, and features utilizing waste timber and forest cutting leftover as material. The production process includes cutting the raw material into coarse material, drying in airflow drier to certain water content, crushing into powder, pelletizing, granulating without adding additive through extrusion, cooling and sieving, backing the undersize to pelletizing step, packing the product. The said production process has low cost.

Robot indoor positioning method based on acousto-optic data fusion and intelligent terminal

The invention discloses a robot indoor positioning method based on acousto-optic data fusion. The method comprises the following steps: acquiring a predicted coordinate sequence; obtaining a training data set and a test data set according to the predicted coordinate sequence and the real coordinate sequence; constructing a neural network model; training the neural network model through the training data set to obtain a trained neural network model; inputting newly collected light source positioning data and sound source positioning data into the trained neural network model to obtain a coordinate prediction value after acousto-optic data fusion; and performing Kalman filtering on the coordinate predicted value after the acousto-optic data fusion to obtain a final coordinate predicted value. According to the method, the condition that indoor illumination is shielded is considered, a sound source localization method based on the arrival time delay inequality is used as compensation, the BP ...

Techniques to manage virtual classes for statistical tests

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

General wood substance grain processing technique and system

Data processing method and system based on electric power big data

The invention provides a data processing method and system based on electric power big data, and the method mainly comprises the following steps: obtaining the electric power big data sent by each electric power system, and carrying out the data analysis of each electric power big data, so as to obtain the data analysis amount of each electric power big data; determining state information of each power system according to the data analysis quantity of each power big data, and calculating an estimator of each data analysis quantity according to each data analysis quantity and each state information; calculating an analysis quantity residual value of each electric power big data according to each data analysis quantity and the estimator of each data analysis quantity, and performing abnormal data identification on each analysis quantity residual value to identify abnormal data in each electric power big data; and performing data correction on the abnormal data, and repeatedly executing the ...

Formulation for purifying silver and process for quickly purifying silver by wet method

A chemical containing hydrazine hydrate, sodium sulfite and sodium carbonate as reducer is used to quickly extract pure silver powder from solution of silver nitrate or the liquid containing Ag ions.Its advantages are short extraction period, high productivity, high recovery of silver, high silver powder purity up to more than 99.9%, and low cost.

Ice cube mould

Intelligent voltage monitor terminal data collection platform based on GPRS network

The utility model provides an intelligent voltage monitor terminal data collection platform based on GPRS network, includes voltage monitor terminal (1), GPRS network passageway (2), voltage monitor terminal data collection platform (3), its medium voltage monitor terminal data collection platform (3) by: GPRS communication module (4), data code module (5), data decode module (6), instruction operation center (7), platform are constituteed from monitoring module (13), data storage module (14), the beneficial effects of the utility model are that, the voltage monitoring data is real -time, accurate, complete, is intelligent acquisition platform, can satisfy power grid company data real -time, accuracy, the integrality demand growing to voltage monitoring management, brings good economic benefits and social simultaneously.

Auxiliary control data analysis system and method of intelligent substation

The invention relates to an auxiliary control data analysis system of an intelligent substation. The auxiliary control data analysis system comprises an information monitoring module, a database, a position analysis module, a data processing module and an information display module, the information monitoring module monitors video data collected by the camera; the database stores all the collected video data; the position analysis module analyzes the moving track of the object based on the video data and judges the object entering the monitoring area; the data processing module carries out data processing according to different monitoring objects; and the information display module displays the information after data processing. According to the invention, the category of the monitored object is judged by analyzing the moving track of the object, classification processing is carried out, suspicious personnel are prevented from entering the transformer substation, and the phenomenon that ...

Belt tensioning mechanism

The utility model provides a belt tensioning mechanism. The device comprises a mounting frame, a belt main body, a belt pulley, a tensioning wheel, a sliding rotating rod, a connecting plate, a measuring frame, a force application rod, a mounting sliding block, a fixing plate, an adjusting screw rod and a force measuring spring, belt wheels are installed on the front end faces of the installationframes. A belt body is assembled at the belt pulley joint; sliding rotating rods are mounted on the lower sides of the front end surfaces of the mounting frames; a tensioning wheel is mounted on the annular side surface of the sliding rotating rod; connecting plates are fixed to the upper end faces of the sliding rotating rods. A measuring frame is installed on the upper end face of the connectingplate. A force measuring spring is mounted on the lower side in the measuring frame; the upper end face of the force measuring spring is connected with a force application rod, the upper end face ofthe ...

TECHNIQUES TO PROVIDE SIGNIFICANCE FOR STATISTICAL TESTS

Techniques to provide significance for statistical tests are described. An apparatus may comprise a data handler component to receive a real data set from a client device, the real data set to comprise data representing at least one measurable phenomenon, a statistical test component to receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test based on a parameter vector, the statistics of the statistical test to follow a probability distribution, generate statistics for the statistical test using the real data set, generate the approximate probability distribution of the computational representation, and a significance generator component to generate a set of statistical significance values for the statistics through interpolation using the approximate probability distribution, the set of statistical significance values comprising one or more p-values. Other embodiments are described and claimed.

Technology for making gold foil

The present invention relates to a technological process for making gold foil, including preparation of brush-plating gold solution and demoulding conductive coating agent. In the course of making gold foil, firstly, the core mould is coated with demoulding agent, then brush-plated with gold-plating solution, then the core mould coated with demoulding agent and gold-plating solution is placed in heated water, demoulded to obtain the gold foil, pickled to remove impurities and washed with clean water to remove acid, so that the finished gold foil can be obtained.

Reducing consumption of computing resources in performing computerized sequence-mining on large data sets

Computing resources consumed in performing computerized sequence-mining can be reduced by implementing some examples of the present disclosure. In one example, a system can determine weights for data entries in a data set and then select a group of data entries from the data set based on the weights. Next, the system can determine a group of k-length sequences present in the selected group of data entries by applying a shuffling algorithm. The system can then determine frequencies corresponding to the group of k-length sequences and select candidate sequences from among the group of k-length sequences based on the frequencies thereof. Next, the system can determine support values corresponding to the candidate sequences and then select output sequences from among the candidate sequences based on the support values thereof. The system may then transmit an output signal indicating the selected output sequences an electronic device.

Visual analysis method and system based on electric power big data

The invention provides a visual analysis method and system based on electric power big data, and the method comprises the steps: carrying out the analysis and classification of the electric power big data corresponding to each electric power infrastructure project according to a project name, and marking the number of project construction days corresponding to the same project name as project data; performing data processing on the project data to obtain a selected single project, and performing analysis processing on the selected single project to obtain a score value of the selected single project; constructing a visual chart of each electric power infrastructure project according to the data of each project and the score value of the selected single project; and analyzing the collected starting time, ending time and access times of the user for accessing each visual chart each time to obtain a visual analysis chart of the power infrastructure project. According to the method, the visual ...

Recovery of gold from tailing pulp

The said method is that gold is recovered in an improved waste water trough from cyanic tailings pulp with chloride and lime added by adding active carbon. The tailings pulp after being thus processed has its gold content reduced from 0.002-0.15g each cubic meter to 0.003-0.015g each cubic meter.

BIM (Building Information Modeling)-based intelligent substation management and control method and system

The invention relates to a BIM (Building Information Modeling)-based intelligent substation management and control method and system. The system comprises a data acquisition module, a data transmission module and a data analysis module, the data acquisition module is used for acquiring basic information data and maintenance resources of a transformer substation through a building information model and acquiring position information of the transformer substation; the data transmission module is used for transmitting the acquired basic information condition and maintenance resource of the transformer substation and the position information of the transformer substation; and the data analysis module is used for predicting maintenance resources of the transformer substation and planning position information of the newly-built transformer substation. According to the method, the resources needing to be consumed by the transformer substation are predicted, the predicted value is compared with ...

Technological process of desorbing electrolytic gold from gold-carrying carbon

In the conditions of 136-170 deg.c temperature and 0.35-0.80 MPa pressure and by using sodium hydroxde as desorbing agent, electrolytic gold is desorbed from gold-carrying carbon effectively. The present invention has the advantages of high desorbing rate, high electrolysis rate, great production capacity and low production cost.

Miscellaneous tree raw material wood substance grain processing technique

The invention provides a production process of wood pellets from miscellaneous tree materials. According to different shapes, the wood materials comprise undressed lumber, crotches, branches, woodchips, and wood materials with shaped of lump, chipping or powder. Respectively employing Methods of slicing, crashing and sieving or relative combined method, processing wood materials with different shapes into chippings with particle size of 3-4mm, mixing wood materials with high lignin content with wood materials with low lignin content by mass ratio, wherein raw materials of hardwood is 60-90, various saw dust is 5-20 and various wood shavings is 8-15, after being dried, molding the mixture by granulating. The invention has rich source supply, is not limited by materials of tree species. Inexpensive materials of tree species can be chosen to collocate flexibly to meet the requirement of low-cost production. Not only the manufacture cost is reduced, but also the mechanical strength of produced ...

Synthetic method of morphine-D3-6-beta-D-glucuronide and intermediate compound thereof

The invention relates to the field of chemical synthesis of medicines, and particularly discloses a synthetic method of morphine-D3-6-beta-D-glucuronide and an intermediate compound of morphine-D3-6-beta-D-glucuronide. The synthesis method comprises the following steps: 1) synthesizing O3-monoacetylmorphine-D3 by using morphine, and reacting the O3-monoacetylmorphine-D3 with acyl-protected 1-halogenated glucuronate in an organic solvent to obtain an intermediate as shown in a formula (VIII); and 2) hydrolyzing the intermediate shown in the formula (VIII) in a mixture solvent of C1-C4 alkanol and water by using lithium hydroxide, neutralizing by using hydrobromic acid, washing by using C1-C4 alkanol, and drying to obtain the product, definitions of substituent groups in the formulas (VII) and (VI) are shown in the specification. The synthesis method disclosed by the invention has the advantages of simplicity in operation, mild conditions, high yield and easiness in industrialization.

Substation construction progress management and control method based on BIM model

The invention relates to a substation construction progress management and control method based on a BIM model. A BIM model is created according to professional fields and business types, and design deepening is carried out on the model in combination with the requirements of construction progress management and control. And making a construction progress plan through construction progress simulation. A construction progress plan is associated with a BIM model, space information and time information are integrated in a visual 4D model, and the construction process of the whole transformer substation is reflected. Through collection, arrangement, statistics and analysis of the original data of the actual progress, the difference between the actual progress and the formulated construction plan is fed back, construction simulation is carried out again based on the BIM model, the construction progress plan is reasonably adjusted, and smooth progress control is ensured.

Data source and sink based on multiple electric power stipulations can be joined in marriage

The utility model provides a data source and sink based on multiple electric power stipulations can be joined in marriage, the device includes the analytic system (11) of stipulations, real -time data storehouse (12), operation condition monitoring module (13) and operation system (14), wherein, analytic module, stipulations configuration management module and order stipulations conversion module are matchd including stipulations in the analytic systems of stipulations (11), module, data request configuration management module and equipment control module are forwardded including data subscription module, data in operation system (14). The utility model discloses effectively solve the problem that the present different background system of producer data are difficult to the sharing, provide transparent data service for upper application.

TECHNIQUES TO SIMULATE STATISTICAL TESTS

Techniques to simulate statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, where statistics of the statistical test are based on parameter vectors to follow a probability distribution, a statistic simulator component to generate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points, the statistic simulation component to distribute portions of the simulated data or simulated statistics across multiple nodes of a distributed computing system in accordance with a column-wise or column-wise-by-group distribution algorithm, and a code generator component to create a computational representation arranged to generate an approximate probability distribution for each point in the grid of points from the simulated statistics, the approximate probability distribution to comprise an empirical cumulative distribution function (CDF). Other embodiments are described and claimed.

Full-life-cycle tracing identification method for large-scale equipment in complex mine environment

The invention discloses a large-scale equipment full-life-cycle tracing identification method in a complex mine environment, and the method comprises the steps: equipment picture information collection, image database building, image segmentation, feature extraction, feature database building, similarity measurement, and result association and binding. Equipment full-life-cycle tracing target identification based on machine vision is realized.

General purpose type wood substance grain forming technique

The invention discloses a universal wood pellet forming technique, which changes the mechanical parameter of a circular mould feed pellet forming machine on the basis of a current circular mould feed pellet forming machine. The circular mould line speed of the circular mould wood pellet forming machine is 1.5-5.5 m/s, the ratio of the diameter and the length of a circular mould hole is 1:6-1:10. The invention adjusts the circular mould line speed of the circular mould wood pellet forming machine into the range which is suitable for pellet forming of various wood materials, simultaneously improves the circular mould and compression roller parameter of the circular mould feed pellet forming machine, which is extensively applied in the pellet forming of various wood materials, and enlarges the application range of raw materials for production. The machinery strength of pellet product completely reaches the standard of Sweden wood pellets, and the energy consumption of unit output is significantly ...

TECHNIQUES TO MANAGE VIRTUAL CLASSES FOR STATISTICAL TESTS

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

Label-enhanced elastic net width learning-based traditional Chinese medicinal material production place identification method

The invention provides a method for identifying producing areas of traditional Chinese medicinal materials based on mark-enhanced elastic net width learning, which comprises the following steps of: firstly, acquiring characteristic data of the traditional Chinese medicinal materials by adopting an infrared spectroscopy method; dividing the feature data into a training sample and a test sample by adopting a set-aside method; secondly, performing simulation training on parameters of the annotation-enhanced elastic network width learning network by using the training sample to obtain optimal parameters so as to establish the annotation-enhanced elastic network width learning network; and finally, converting the feature data of the test sample by using a label-enhanced elastic net width learning network, and further predicting the production place information of the traditional Chinese medicinal materials. The invention provides a width learning network method which is more compact and higher ...

Analyzing and processing method and system based on electric power big data

The invention provides an analysis processing method and system based on electric power big data. The electric power big data is divided into first-level data and second-level data; sequentially judging whether the first-level data and the second-level data are qualified or not according to the message queue; training a preset analysis algorithm by taking the unqualified primary data as a training sample to obtain a trained preset analysis algorithm; performing data analysis on the first-level data by utilizing a trained preset analysis algorithm to obtain a data analysis result, and determining a corresponding visual analysis chart; performing formatting processing and data cleaning on the unqualified secondary data in sequence, and creating a configuration file based on data source information of the secondary data; constructing visualized analysis charts according to the configuration file and the secondary data after data cleaning, and inputting the two visualized analysis charts into ...

Thick film substrate welding-flux-free eutectic crystal mounting method

The invention discloses a thick film substrate welding-flux-free eutectic crystal mounting method. A substrate is heated, a chip is picked up by using a chip suction head and is aligned to a welding region of the substrate, and friction is performed on the welding region in the certain direction till a silicon material of the chip and gold of the substrate are fused to form a gold-silicon eutectic crystal, and a welding interface is formed after cooling. The thick film substrate welding-flux-free eutectic crystal mounting method achieves welding-flux-free eutectic crystal welding, and cost is effectively reduced. The chip is directly fused with the substrate and has higher electric conductivity and thermal conductivity, circuit performance is improved, and the chip can be used for a high-power circuit. Production efficiency is improved without welding-flux coating, printing and soldering lug cutting. The chip silicon material is directly fused with a substrate conductor, has high mechanical ...

Four-chip synchronous side printing device and method for small-sized LTCC (low temperature co-fired ceramic) chip circuit

The invention discloses a four-chip synchronous side printing device and a four-chip synchronous side printing method for small-sized LTCC (low temperature co-fired ceramic) chip circuits. A control console controls compressed air I to be divided into four paths, and the four paths of compressed air are respectively connected with air cavities on the four sides of a main body screen printing table; four crisscross mounting slots are formed in the surface of a substrate; a middle cover plate is fixedly mounted in the cross center of each crisscross mounting slot; one end of each air cavity is connected into the corresponding mounting slot, and the other end of each air cavity is connected with a corresponding compressed air pipe; a piston rod is sleeved in each air cavity, the upper surface of a slide block moving along with the piston rods is connected with a peripheral cover plate, and 4 LTCC circuit boards are clamped by the peripheral cover plate and a central cover plate. The clamping ...

Miscellaneous tree raw material wood grain processing technique

The invention provides a production process of wood pellets from miscellaneous tree materials. According to different shapes, the wood materials comprise undressed lumber, crotches, branches, woodchips, and wood materials with shaped of lump, chipping or powder. Respectively employing Methods of slicing, crashing and sieving or relative combined method, processing wood materials with different shapes into chippings with particle size of 3-4mm, mixing wood materials with high lignin content with wood materials with low lignin content by mass ratio, wherein raw materials of hardwood is 60-90, various saw dust is 5-20 and various wood shavings is 8-15, after being dried, molding the mixture by granulating. The invention has rich source supply, is not limited by materials of tree species. Inexpensive materials of tree species can be chosen to collocate flexibly to meet the requirement of low-cost production. Not only the manufacture cost is reduced, but also the mechanical strength of produced ...

General wood substance grain processing technique and system

The invention discloses a process of general-purpose wood particles, which employs remains of tending and cutting of forest and wood-curing waste as materials which are processed into wood chippings and crashed into wood particles. Crashed wood particles are screened, and wood particles with qualified size are passed to next process and wood particles with unqualified size are crashed again. Heat produced in forming process is used to vaporize contained water to soften the powder materials, and then the powder materials are compressed into particles under the effect of extrusion force. The formed particles which have high temperature and include a small amount of crushed aggregates must be cooled and screened. Screened crushed aggregates returns to the particle processing and forming process and the finished products of particles enters the final package process. Compared with prior art, the energetic consumption of specific yield of the invention can be remarkably reduced, and gross investment ...

Light degradable polypropylene as food package material

TECHNIQUES TO PERFORM CURVE FITTING FOR STATISTICAL TESTS

Techniques to perform curve fitting for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, the statistical test based on parameter vectors to follow a probability distribution. The apparatus may further comprise a statistic simulator component to simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points, calculate quantiles for the parameters vectors from the simulated data, and fit an estimated cumulative distribution function (CDF) curve to quantiles for each point in the grid of points using a monotonic cubic spline interpolation technique in combination with a transform to satisfy a defined level of precision. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , enable a system to:generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution;simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points;calculate quantiles for the parameter vectors from the simulated data; andfit an estimated cumulative distribution function (CDF) curve to quantiles for each point in the grid of points using a monotonic cubic spline interpolation technique in combination with a transform to satisfy a defined level of precision.2. The article of claim 1 , further comprising instructions that claim 1 , when executed claim 1 , enable a system to generate a first simulated data structure comprising an ordered arrangement of rows and columns claim 1 , each row to represent a point in the grid of points and each column to represent a quantile for each point in the grid of points.3. The article of claim 2 , further comprising ...

Transformer economy service life predication method and device

A transformer economy service life predication device is sequentially connected by an input parameter receiving and delivering module (1), a process calculation module (2) and a data fitting contrastive analysis module (6) and a constant management module (3), a constant library (4), a constant interaction module (5) and a process calculation module (2). According to the transformer economy service life predication device, the economy service life of a transformer can be accurately calculated, an application system for transformer economy service life evaluation can be rapidly formed due to combination of a calculation model, the evaluation principle and the computer technology, and a time reference point is provided for transformer maintenance and replacement.

Light degradable polypropylene as food package material

The food packing material has the main components of polypropylene and optosensitive catalyst, and the polypropylene material is polypropylene resin without antioxidant and optic absorbent. The preparation and use of the said material produces no toxic matter and no pollutant a can be degraded naturally in 3-6 months without producing pollution to environment. It is low in cost, so that it may beused to replace available undegradable food package material.

Taxi advertisement intelligent publishing platform based on cloud computing

The invention relates to the technical field of taxi advertisement publishing platforms, in particular to a taxi advertisement intelligent publishing platform based on cloud computing. The taxi advertisement intelligent publishing platform comprises an advertisement intelligent publishing monitoring center, a cloud computing platform, a wireless network and a vehicle-mounted video advertisement publishing terminal connected with the wireless network through communication. The cloud computing platform comprises an advertisement intelligent publishing unit, an advertisement data storage unit, a cloud computing data analysis unit and a network communication server. The advertisement intelligent publishing unit is connected with the advertisement intelligent publishing monitoring center, and the network communication server is connected with the wireless network. The vehicle-mounted video advertisement publishing terminal comprises a driver information terminal and a passenger advertisement ...

TECHNIQUES TO MANAGE VIRTUAL CLASSES FOR STATISTICAL TESTS

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

Techniques to manage virtual classes for statistical tests

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

Techniques to simulate statistical tests

Techniques to simulate statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, where statistics of the statistical test are based on parameter vectors to follow a probability distribution, a statistic simulator component to generate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points, the statistic simulation component to distribute portions of the simulated data or simulated statistics across multiple nodes of a distributed computing system in accordance with a column-wise or column-wise-by-group distribution algorithm, and a code generator component to create a computational representation arranged to generate an approximate probability distribution for each point in the grid of points from the simulated statistics, the approximate probability distribution to comprise an empirical cumulative distribution function (CDF). Other ...

TECHNIQUES TO PERFORM DATA REDUCTION FOR STATISTICAL TESTS

Techniques to perform data reduction for statistical tests are described. An apparatus may comprise an evaluation component to receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test, the computational representation to include a simulated data structure with information for estimated cumulative distribution function (CDF) curves for one or more parameter vectors of the statistical test, each parameter vector represented with a single point in a grid of points, the evaluation component to evaluate the simulated data structure to determine whether any points in the grid of points are removable from the simulated data structure with a target level of precision, and a data reduction generator to reduce the simulated data structure in accordance with the evaluation to produce a reduced simulated data structure having a smaller data storage size relative to the simulated data structure. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , cause a system to:receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test, the computational representation to include a simulated data structure with information for estimated cumulative distribution function (CDF) curves for one or more parameter vectors of the statistical test, each parameter vector represented with a single point in a grid of points;evaluate the simulated data structure to determine whether any points in the grid of points are removable from the simulated data structure while remaining within a target level of precision; andreduce the simulated data structure in accordance with the evaluation to produce a reduced simulated data structure having a smaller data storage size relative to the simulated data structure, the reduced ...

Techniques to manage virtual classes for statistical tests

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

Power transmission and transformation equipment full life cycle cost evaluation method based on carbon emission measurement and calculation

The invention relates to a power transmission and transformation equipment full life cycle cost evaluation method based on carbon emission measurement and calculation, and the method comprises the following steps: S1, calculating equipment economic cost, including equipment production cost, equipment transportation cost, installation cost, operation and maintenance cost and scrap cost; s2, calculating the carbon emission cost of the equipment according to the carbon emission of each link; s3, calculating the risk cost of the whole process of the project based on the related equipment, materials and carbon emissions in combination with the project time, including spot market risk cost and carbon market risk cost; s4, the equipment economic cost, the equipment carbon emission cost and the risk cost are coupled, and a full-life-cycle comprehensive cost model of the power transmission and transformation equipment is constructed; and S5, evaluating the full-life-cycle cost of the power transmission ...

TECHNIQUES TO PERFORM INTERPOLATION FOR STATISTICAL TESTS

Techniques to perform interpolation for statistical tests are described. An apparatus may comprise processor circuitry and a simulated data component for execution by the processor circuitry to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution. The apparatus may further comprise a statistic simulator component for execution by the processor circuitry to simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points. The apparatus may further comprise a code generator component for execution by the processor circuitry to remove selective points from the grid of points to form a subset of points, and generate interpolation code to interpolate a statistic of the statistical test on any point. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , cause a system to:generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution;simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points;remove selective points from the grid of points to form a subset of points; andgenerate interpolation code to interpolate a statistic of the statistical test on any point.2. The article of claim 1 , the statistics of the statistical test based on parameter vectors to follow a probability distribution of an unknown form.3. The article of claim 1 , the statistics of the statistical test based on parameter vectors to follow a probability distribution of a known form.4. The article of claim 1 , further comprising instructions that claim 1 , when executed claim 1 , enable a system to receive a simulated data structure with ...

Portable sealing machine

Biomass wood bit drying system and biomass wood bit drying method

The invention discloses a biomass wood bit drying system and a biomass wood bit drying method. The biomass wood bit drying system comprises a hot air drying device, a feed device, an airflow distributor, a rotating-jet type dryer, a collecting device and a tail gas filter device. The feed device is connected to the lower portion of the rotating-jet type dryer, the hot air drying device is connected with the airflow distributor through a pipeline, the airflow distributor is connected with the bottom and the upper portion of the rotating-jet type dryer respectively through pipelines, and the top of the rotating-jet type dryer is connected with the collecting device and the tail gas filter device in sequence through pipelines. Biomass wood bits are heated and dried, time and labor can be saved, biomass wood bit particles of different types can be dried, and drying efficiency is improved. The pollution on air by emissions can be reduced, and environmental protection and energy saving are achieved ...

TECHNIQUES TO MANAGE VIRTUAL CLASSES FOR STATISTICAL TESTS

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

Techniques to manage virtual classes for statistical tests

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

Prefabricated foundation for main transformer equipment of transformer substation and construction method of prefabricated foundation

The invention relates to the technical field of electrical equipment foundation structures, in particular to a transformer substation main transformer equipment prefabricated assembly type foundation and a construction method thereof.The transformer substation main transformer equipment prefabricated assembly type foundation comprises a concrete cushion layer, and four prefabricated bottom plates connected with one another through concrete pouring are arranged on the upper side of the concrete cushion layer; the two sides of the upper end faces of the four prefabricated bottom plates are each provided with a prefabricated buttress, and each prefabricated bottom plate and the corresponding prefabricated buttress are connected into a whole through a prefabricated connecting piece and concrete pouring. According to the prefabricated assembly type foundation, on-site wet operation is reduced as much as possible, the problem of environmental pollution caused by construction is relieved to a ...

Formula for purifying gold and gold purifying method using fast wet method

The present invention relates to a formula for purifying gold and its fast wet gold-purifying process. Said invention adopts potassium permanganate, sodium oxide, hydrochloric acid and nitric acid asgold-dissolving agent,a nd adopts hyrdazine hydrate and sodium hydroxide as reduction agent to make wet gold purification for gold powder with a certain grade. Said invention possesses the advantages of short purifying time, low gold purification loss rate, high gold yield, high gold purity reaching to greater than or equal to 99.9% of national standard, low production cost and good operation environment, etc..

Prestress-free tough steel structure formed by combining hinge column and elastic reset beam

The utility model discloses a prestress-free tough steel structure formed by combining a hinge column and an elastic reset beam. The device comprises an elastic reset beam and two column foot hinged box-type columns, the elastic reset beam comprises two cantilever section I-shaped steel beams, a middle section I-shaped steel beam and a buckling restrained high-strength steel bar. The cantilever section I-shaped steel beam is fixed on the column foot hinged box column; wherein the middle section I-shaped steel beam is connected between the two cantilever section I-shaped steel beams, the buckling restrained high-strength steel bars are symmetrically arranged on the two sides of the web along the central axis of the beam, one ends of the buckling restrained high-strength steel bars are fixedly connected with the cantilever section I-shaped steel beam web, and the other ends are fixedly connected with the web of the middle section I-shaped steel beam; the prestress-free tough steel structures ...

Composite testing fixture for detecting steering knuckle

The utility model discloses a composite testing fixture for steering knuckle detection, which comprises a mandrel, a detection block, a steering knuckle body, a testing fixture table and a table plate, support legs are welded on the lower surface of the table plate, support seats are welded on the lower surfaces of the support legs, an insertion block is embedded in the middle of the table plate, and the insertion block is connected with the detection block. The detection tool table is installed on the upper surface of the table plate through bolts, a through hole is formed in the detection tool table, the steering knuckle body is placed on the detection tool table, a positioning pin is installed on the detection tool table, the upper end of the positioning pin is inserted into the steering knuckle body, one end of the mandrel penetrates through the through hole and penetrates through the steering knuckle body, and the other end of the mandrel penetrates through the detection tool table ...

Yantai Fuji apple No.6 tissue culture and rapid propagation method

The invention discloses a Yantai Fuji apple No.6 tissue culture and rapid propagation method. The method includes the steps of conducting culture medium primary culture through a culture medium MS+6-BA 0.5 mg/L+IBA 0.1 mg/L + PVP 500 mg/L, conducting subculture through a culture medium MS+6-BA 0.5 mg/L+IBA 0.1 mg/L, conducting rooting culture through a rooting culture medium 1/2MS+IBA 1.0 mg/L and conducting seedling hardening and transplanting through pure saw dust. By means of the method, rapid propagation of the Yantai Fuji apple No.6 is achieved, the high survival rate is ensured, and expected characters of the Yantai Fuji apple No.6 is kept, and a method and way convenient to implement are provided for development and further expansion of the apple industry.

Recovering method for gold from tailing pulp

Infrastructure business management method and system based on electric power big data

The invention provides an infrastructure business management method and system based on electric power big data, and the method comprises the steps: encrypting an electric power infrastructure project code to generate an encrypted graph, classifying the electric power big data according to a project name, and marking the number of project construction days corresponding to the same project name as project data; dividing the project data into a plurality of batch data according to a preset quantity; distributing each batch of data, and marking the data processing single project of which the processing type is the same as the project name in the batch of data as a primary single project; and selecting a selected single project from the primary single projects, and processing the selected single project and the batch data to obtain a visual chart corresponding to the electric power capital construction project code. According to the method, the corresponding data processing single project ...

Urban intelligent supervisory system based on cloud computing

The invention relates to an urban intelligent supervisory system based on cloud computing. The urban intelligent supervisory system based on cloud computing comprises an urban intelligent supervisory center, a cloud computing platform, a handheld information terminal and a fixed high-definition monitoring camera, wherein the handheld information terminal and the fixed high-definition monitoring camera are connected with the cloud computing platform. The cloud computing platform comprises a cloud computing data analysis unit, an urban management history information database server, a data storage unit, a GIS server and a network communication server, wherein the urban management history information database server, the data storage unit, the GIS server and the network communication server are connected with the cloud computing data analysis unit, and the urban management history information database server is connected with the urban intelligent supervisory center. The handheld information ...

TECHNIQUES TO MANAGE VIRTUAL CLASSES FOR STATISTICAL TESTS

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , cause a system to:generate a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test, the computational representation to include a simulated data structure with information for estimated cumulative distribution function (CDF) curves for one or more parameter vectors of the statistical test, each parameter vector represented with a single point in a grid of points;evaluate the simulated data structure to determine whether any points in the grid of points are removable from the simulated data structure while remaining within a target level of precision for the simulated data structure;reduce the simulated data structure in accordance with the evaluation by removing one or more points of the grid of points from the simulated data structure while remaining within the target level of ...

Techniques to manage virtual classes for statistical tests

Techniques to manage virtual classes for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution, a statistic simulator component to simulate statistics for the parameter vectors from the simulated data with a distributed computing system comprising multiple nodes each having one or more processors capable of executing multiple threads, the simulation to occur by distribution of portions of the simulated data across the multiple nodes of the distributed computing system, and a distributed control engine to control task execution on the distributed portions of the simulated data on each node of the distributed computing system with a virtual software class arranged to coordinate task and sub-task operations across the nodes of the distributed computing system. Other embodiments are described and claimed.

TECHNIQUES TO PERFORM DATA REDUCTION FOR STATISTICAL TESTS

Techniques to perform data reduction for statistical tests are described. An apparatus may comprise an evaluation component to receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test, the computational representation to include a simulated data structure with information for estimated cumulative distribution function (CDF) curves for one or more parameter vectors of the statistical test, each parameter vector represented with a single point in a grid of points, the evaluation component to evaluate the simulated data structure to determine whether any points in the grid of points are removable from the simulated data structure with a target level of precision, and a data reduction generator to reduce the simulated data structure in accordance with the evaluation to produce a reduced simulated data structure having a smaller data storage size relative to the simulated data structure. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , cause a system to:receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test, the computational representation to include a simulated data structure with information for estimated cumulative distribution function (CDF) curves for one or more parameter vectors of the statistical test, each parameter vector represented with a single point in a grid of points;evaluate the simulated data structure to determine whether any points in the grid of points are removable from the simulated data structure while remaining within a target level of precision; andreduce the simulated data structure in accordance with the evaluation to produce a reduced simulated data structure having a smaller data storage size relative to the simulated data structure, the reduced ...

TECHNIQUES TO PERFORM CURVE FITTING FOR STATISTICAL TESTS

Techniques to perform curve fitting for statistical tests are described. An apparatus may comprise a simulated data component to generate simulated data for a statistical test, the statistical test based on parameter vectors to follow a probability distribution. The apparatus may further comprise a statistic simulator component to simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points, calculate quantiles for the parameters vectors from the simulated data, and fit an estimated cumulative distribution function (CDF) curve to quantiles for each point in the grid of points using a monotonic cubic spline interpolation technique in combination with a transform to satisfy a defined level of precision. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , enable a system to:generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution;simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points;calculate quantiles for the parameter vectors from the simulated data; andfit an estimated cumulative distribution function (CDF) curve to quantiles for each point in the grid of points using a monotonic cubic spline interpolation technique in combination with a transform to satisfy a defined level of precision.2. The article of claim 1 , further comprising instructions that claim 1 , when executed claim 1 , enable a system to generate a first simulated data structure comprising an ordered arrangement of rows and columns claim 1 , each row to represent a point in the grid of points and each column to represent a quantile for each point in the grid of points.3. The article of claim 2 , further comprising ...

TECHNIQUES TO PERFORM INTERPOLATION FOR STATISTICAL TESTS

Techniques to perform interpolation for statistical tests are described. An apparatus may comprise processor circuitry and a simulated data component for execution by the processor circuitry to generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution. The apparatus may further comprise a statistic simulator component for execution by the processor circuitry to simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points. The apparatus may further comprise a code generator component for execution by the processor circuitry to remove selective points from the grid of points to form a subset of points, and generate interpolation code to interpolate a statistic of the statistical test on any point. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , cause a system to:generate simulated data for a statistical test, statistics of the statistical test based on parameter vectors to follow a probability distribution;simulate statistics for the parameter vectors from the simulated data, each parameter vector represented with a single point in a grid of points;remove selective points from the grid of points to form a subset of points; andgenerate interpolation code to interpolate a statistic of the statistical test on any point.2. The article of claim 1 , the statistics of the statistical test based on parameter vectors to follow a probability distribution of an unknown form.3. The article of claim 1 , the statistics of the statistical test based on parameter vectors to follow a probability distribution of a known form.4. The article of claim 1 , further comprising instructions that claim 1 , when executed claim 1 , enable a system to receive a simulated data structure with ...

TECHNIQUES TO PROVIDE SIGNIFICANCE FOR STATISTICAL TESTS

Techniques to provide significance for statistical tests are described. An apparatus may comprise a data handler component to receive a real data set from a client device, the real data set to comprise data representing at least one measurable phenomenon, a statistical test component to receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test based on a parameter vector, the statistics of the statistical test to follow a probability distribution, generate statistics for the statistical test using the real data set, generate the approximate probability distribution of the computational representation, and a significance generator component to generate a set of statistical significance values for the statistics through interpolation using the approximate probability distribution, the set of statistical significance values comprising one or more p-values. Other embodiments are described and claimed. 1. An article of manufacture comprising a non-transitory computer-readable storage medium containing instructions that , when executed , cause a system to:receive a computational representation arranged to generate an approximate probability distribution for statistics of a statistical test based on a parameter vector, the statistics of the statistical test to follow a probability distribution;receive a real data set from a client device, the real data set to comprise data representing at least one measurable phenomenon;generate statistics for the statistical test using the real data set on the parameter vector;generate the approximate probability distribution of the computational representation on the parameter vector; andgenerate a set of statistical significance values for the statistics through interpolation using the approximate probability distribution, the set of statistical significance values comprising one or more p-values, each p-value to represent a probability of obtaining a given ...

Flexible Program Functions Usable for Customizing Execution of a Sequential Monte Carlo Process in Relation to a State Space Model

One example described herein involves a system receiving task data and distribution criteria for a state space model from a client device. The task data can indicate a type of sequential Monte Carlo (SMC) task to be implemented. The distribution criteria can include an initial distribution, a transition distribution, and a measurement distribution for the state space model. The system can generate a set of program functions based on the task data and the distribution criteria. The system can then execute an SMC module to generate a distribution and a corresponding summary, where the SMC module is configured to call the set of program functions during execution of an SMC process and apply the results returned from the set of program functions in one or more subsequent steps of the SMC process. The system can then transmit an electronic communication to the client device indicating the distribution and its corresponding summary.

Computer system for automatically analyzing a video of a physical activity using a model and providing corresponding feedback

A computer system can automatically analyze a video of a physical activity and provide corresponding feedback. For example, the system can receive a video file including image frames showing an entity performing a physical activity that involves a sequence of movement phases. The system can generate coordinate sets by performing image analysis on the image frames. The system can provide the coordinate sets as input to a trained model, the trained model being configured to assign scores and movement phases to the image frames based on the coordinate sets. The system can then select a particular movement phase for which to provide feedback, based on the scores and movement phases assigned to the image frames. The system can generate the feedback for the entity about their performance of the particular movement phase, which may improve the entity's future performance of that particular movement phase.

Resilient prestress-free steel structure formed by combining pin-ended columns with elastic centering beam

A resilient prestress-free steel structure includes the elastic centering beam and two pin-ended box column bases. The elastic centering beam includes two cantilever segment I-shaped steel beams, a middle segment I-shaped steel beam and buckling restrained high strength steel bars. The cantilever segment I-shaped steel beams are fixed to the two pin-ended box column bases, the middle segment I-shaped steel beam is connected between the two cantilever segment I-shaped steel beams, the buckling restrained high strength steel bars are symmetrically arranged. One end of each of the buckling restrained high strength steel bars is firmly connected with the web of each of the cantilever segment I-shaped steel beams, and the other end of each of the buckling restrained high strength steel bars is firmly connected with the web of the middle segment I-shaped steel beam. The resilient prestress-free steel structure is arranged in left and right symmetrical manner.

Automatic spatial regression system

A computing device selects a trained spatial regression model. A spatial weights matrix defined for observation vectors is selected, where each element of the spatial weights matrix indicates an amount of influence between respective pairs of observation vectors. Each observation vector is spatially referenced. A spatial regression model is selected from spatial regression models, initialized, and trained using the observation vectors and the spatial weights matrix to fit a response variable using regressor variables. Each observation vector includes a response value for the response variable and a regressor value for each regressor variable of the regressor variables. A fit criterion value is computed for the spatial regression model and the spatial regression model selection, initialization, and training are repeated until each spatial regression model is selected. A best spatial regression model is selected and output as the spatial regression model having an extremum value of the fit criterion value.

Calculation method and terminal of carbon emission of substation

Provided are a calculation method and terminal of carbon emission of a substation. In the device and material production stage of the substation, device parameters of a substation device are acquired, a device parameter linear regression model is established according to the device 5 parameters, and carbon emission generated in the device and material production stage is calculated according to the device parameter linear regression model. In the construction stage of the substation, carbon emission of the construction is calculated according to the use amount of resources. In the operation and maintenance stage of the substation, carbon emission generated in the operation and maintenance stage is calculated according to a power 0 transmission and distribution loss and fuel consumption. In the waste recycling stage of the substation, carbon emission generated in the waste recycling stage is calculated according to basic materials consumed by devices and materials and the recycling ratio of the basic materials. The carbon emission of the device and material production stage, the carbon emission of the construction stage, the carbon emission of the operation and maintenance stage and the carbon 5 emission of the waste recycling stage are accumulated to obtain carbon emission of the full life cycle of the substation.

Bayesian neural network point estimator

A point estimate value for an individual is computed using a Bayesian neural network model (BNN) by training a first BNN model that computes a weight mean value, a weight standard deviation value, a bias mean value, and a bias standard deviation value for each neuron of a plurality of neurons using observations. A plurality of BNN models is instantiated using the first BNN model. Instantiating each BNN model of the plurality of BNN models includes computing, for each neuron, a weight value using the weight mean value, the weight standard deviation value, and a weight random draw and a bias value using the bias mean value, the bias standard deviation value, and a bias random draw. Each instantiated BNN model is executed with the observations to compute a statistical parameter value for each observation vector of the observations. The point estimate value is computed from the statistical parameter value.

Standard error for deep learning model outcome estimator

A treatment model trained to compute an estimated treatment variable value for each observation vector of a plurality of observation vectors is executed. Each observation vector includes covariate variable values, a treatment variable value, and an outcome variable value. An outcome model trained to compute an estimated outcome value for each observation vector using the treatment variable value for each observation vector is executed. A standard error value associated with the outcome model is computed using a first variance value computed using the treatment variable value of the plurality of observation vectors, using a second variance value computed using the treatment variable value and the estimated treatment variable value of the plurality of observation vectors, and using a third variance value computed using the estimated outcome value of the plurality of observation vectors. The standard error value is output.

Topological order determination using machine learning

A computing device learns a best topological order vector of a plurality of variables. A target variable and zero or more input variables are defined. (A) A machine learning model is trained with observation vectors using the target variable and the zero or more input variables. (B) The machine learning model is executed to compute an equation loss value. (C) The equation loss value is stored with the identifier. (D) The identifier is incremented. (E) (A) through (D) are repeated a plurality of times. (F) A topological order vector is defined. (G) A loss value is computed from a subset of the stored equation loss values based on the topological order vector. (F) through (G) are repeated for each unique permutation of the topological order vector. A best topological order vector is determined based on a comparison between the loss value computed for each topological order vector in (G).

Midazolam-d3 and its preparation method

A compound midazolam-D3 and its preparation method as it's synthesized from 7-chloro-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one (Compound II), by ring closure reaction with ethyl isocyanoacetate, hydrolysis with base, ring-opening with acid, ring closure under high temperature, and reacted with trideuteromethyl reagent; the synthetic route has advantage of short synthetic route appropriate, accessible and affordable. The prepared midazolam-D3 has characteristic with high purity, high deuterium content and very good stability.