Sintering free brick-production process

Microblog classifying method and device

The invention discloses a microblog classifying method and a microblog classifying device. The method comprises the following steps: step1, pre-processing a training corpus collection, segmenting words from the preprocessed training corpus to obtain candidate features, carrying out weight calculation on the candidate features, and selecting features according to weight calculation results so as to obtain final classifying features; step 2, adopting a Bayes classifier to carry out model training according to the final classifying features so as to obtain a classifying model; step 3, classifying microblog files by the Bayes classifier according to the classifying model. By the technical scheme of the invention, the classifying recall rate and accuracy are improved.

Air ventilation system for battery compartment of hydrogen fuel cell powered ship and control method of air ventilation system

The invention provides a hydrogen fuel cell power ship battery compartment air ventilation system and a control method thereof, a hydrogen fuel power cell is arranged in a power ship battery compartment, a fuel power cell is arranged in a safety cover, the safety cover is communicated with an interlayer of the power ship battery compartment through a second exhaust pipe, and an air storage tank is further arranged in the power ship battery compartment; a ventilation opening is further formed in the outer portion of the power ship battery bin and communicated with the interior of the power ship battery bin through a pipeline, and a filtering device is arranged in the pipeline. The purification pipe can filter corrosive sea wind, metal objects in the battery compartment of the power ship are protected, metal equipment in the battery compartment of the power ship is protected, a filter element in the purification pipe can be cleaned regularly, overall ventilation adjustment is guaranteed, ...

MANUFACTURING METHOD OF SODIUM CARBONATE BY USE OF SAPONIFIED WASTE LIQUOR

SEWAGE TREATMENT EQUIPMENT

Unmanned aerial vehicle base station deployment method in air-ground fusion cellular network

The invention discloses an unmanned aerial vehicle base station deployment method in an air-ground fusion cellular network. The unmanned aerial vehicle base station deployment method comprises the following steps that S1, information collection is carried out on a ground base station side and a network side respectively; s2, establishing a system model based on the information in the step S1, wherein the system model comprises a ground base station parameter model, an unmanned aerial vehicle base station propagation model and an unmanned aerial vehicle base station antenna array model; s3, establishing a performance evaluation model based on the average transmission rate of the ground base station users and the average transmission rate of the unmanned aerial vehicle base station users; s4, according to the performance evaluation model in the step S3, setting a plurality of groups of network parameter combinations to carry out numerical calculation on key performance indexes, and selecting ...

Iron removing method in course of producing aluminium sulfate

Lost article found device under water

The utility model provides a lost article found device under water, includes manipulator, camera, probe rod and control cabinet, manipulator and probe rod swing joint, probe rod and manipulator junction are equipped with multidirectional rotation joint and bolt, the manipulator is inside to be equipped with the motor, and camera and light pass through the buckle to be fixed on the probe rod, and motor, camera and light pass through the cable to be connected with the control cabinet, the camera is equipped with first cable socket, the light is equipped with second cable socket, probe rod fully adjustable, probe rod establish third cable socket, third cable socket passes through the inside circuit arrangement of probe rod and is connected with the motor. The utility model discloses the clear submarine barrier of unmanned dive can be realized, workman intensity of labour is reduced to can realize the picking up of barrier of the submarine different degree of depth and angle.

Polishing and reloading device for underwater robot of hydropower station and construction method of polishing and reloading device

The invention provides a polishing and mounting device for an underwater robot of a hydropower station and a construction method of the polishing and mounting device. The polishing and mounting device comprises a rectangular mounting frame detachably connected to the underwater robot, a fixed arm horizontally and rotatably arranged on a mounting beam at one end of the mounting frame and a movable arm with the end hinged to the movable end of the fixed arm. An oil cylinder used for controlling the rotating angle of the movable arm is arranged in the fixed arm, a mounting shaft capable of stretching and retracting in the axial direction is arranged at the movable end of the movable arm, a propeller and a grinding head which are driven by a motor to rotate are arranged at the movable end of the mounting shaft, the grinding head is of a disc-shaped structure, and cameras are arranged on the two sides of the mounting shaft. The effects of improving the grinding and polishing quality and conveniently ...

Iron-removing method used in course of aluminum sulfate production

The present invention relates to a method for removing iron in course of aluminium sulfate production. In a immersion acid liquor a small quantity of potassium permanganate and manganese sulfate solutions are added in turn, after reaction those are settled and separated, and the supernatant is placed in a container with aluminium wire net, and in the container a proper quantity of fly ash washed by acid is added, boiled and filtered, and further the filtrate is placed in a concentration tank with aluminium wire net, then it is vaporized, concentrated, cooled-down and crystallized, so that the obtained product is a pure-white sparkling high-grade product.

Method for prodn. of non-burnt brick

The feature of this invention is that its components by wt. contains burned dregs of sulfuric acid 60-80 percent, gypsum 18-40 percent and water glass 0.2-2 percent. The above components are mixed evenly in proportion, moulded, and cured under natural condition for 14-28 days. The burn free brick thus produced meets the standards of mark 100 common building brick. This invention finds an effective way for large amount usage of burned dregs of sulfuric acid.

ORE-DRESSING METHOD TO SEPARATE MULTI-METAL COMPLEX MINERALS OF CU, PB AND ZN

Electric ship battery pack supporting seat and battery replacement method based on supporting seat

An electric ship battery pack supporting seat comprises a cabinet body, a plurality of supporting partition plates are arranged in the cabinet body, a back baffle is arranged on the cabinet body on the back face of a compartment formed by the supporting partition plates, and a turnover plate is arranged on the supporting partition plate on the front face of the compartment. Lifting rods are arranged on the cabinet body below the turnover plate, the two ends of each lifting rod extend out of the two sides of the cabinet body, a threaded rod penetrates through one end of each lifting rod, a smooth rod penetrates through the other end of each lifting rod, and the lower end of each threaded rod is in transmission with a driving motor through a transmission belt; the threaded rod comprises a plurality of rod sections, a T-shaped connecting hole is formed in the bottom end of the threaded rod, a fixed vertical plate is arranged in the upper half section of the T-shaped connecting hole, a shifting ...

Heat-resistant aluminum alloy powder material and application thereof

The invention provides a heat-resistant aluminum alloy powder material and application thereof. The heat-resistant aluminum alloy powder material comprises the following main alloy elements in percentage by mass: 6.0 to 12 weight percent of Si, 2.0 to 5.0 weight percent of Fe, 1.0 to 3.0 weight percent of Ni, 1.0 to 4.0 weight percent of Mn and the balance of Al. The powder material is uniform in structure and free of obvious segregation, the room-temperature and high-temperature mechanical properties meet the harsh requirements proposed by temperature-resistant additive manufacturing, and the powder material is excellent in performance at the high temperature, especially at the temperature of 200-250 DEG C. In addition, rare earth elements do not need to be added or complex process wrapping is not needed, cost is lower, and industrial production can be met.

Hydrogen fuel cell power ship stern tube lubricating tube system and control method thereof

The invention provides a hydrogen fuel cell power ship stern tube lubricating tube system and a control method thereof, an engine is connected with a lubricating oil pump, an oil outlet pipe of the lubricating oil pump is communicated with the interior of a stern piston supporting seat through a control valve, and the control valve comprises a pressure regulating valve and a temperature regulating valve; a valve of the pressure regulating valve is connected with a valve ring of the temperature regulating valve through a valve rod; the upper end of the pressure regulating valve is connected with the pressure stabilizing valve; a cooling lubricating oil tank is further arranged and communicated with a temperature adjusting valve of the control valve through a lubricating oil pump. The pressure stabilizing valve controls pressure to open the pressure regulating valve to release pressure and discharge oil, and the temperature regulating valve opens a valve ring through temperature to discharge ...

Plant growth regulator and tis prepn. method

Plant growth regulator and its preparing process

A plant growing regulator, diphenyl urea disulfonate, suitable for sorghum, corn, millet, oats, peanut, wheat, cotton and vegetables is prepared through the reaction of diphenyl urea with concentrated sulfuric acid to obtain diphenyl urea disulfonic acid, neutralizing with carbonate or hydroxide, filtering and drying by evapoartion, and is applied by spraying it in the concentration of 5-500 mg/Lonto plant leaves or dressing seeds to promote the development of root system and increase the content of chlorophyll, enzyme activity and yield. It is non-toxic and has a certain drough-resistant action.

ORE-DRESSING METHOD TO SEPARATE MULTI-METAL COMPLEX MINERALS OF CU, PB AND ZN

User group portraying method based on IP access characteristics

The invention discloses a user group portraying method based on IP access characteristics, and relates to the technical field of network governance, and the method comprises the steps: firstly constructing an IP access characteristic data set through a mathematical statistics method according to the category information of access domain names of logs, then recognizing a specific group and an unspecific group based on a user group division algorithm, and finally portraying the specific group and the unspecific group. A user group attribute label system is constructed, group portrait analysis is performed on divided groups, a user group division algorithm based on combination of rules and machine learning is designed by taking IP access features as acting points on the basis of fully researching original logs, and the user group division algorithm is researched on the basis of large log data volume under the condition of big data. The invention discloses a method for optimizing machine learning ...