56results about How to "Reduce storage difficulty" patented technology

The invention belongs to the technical field of application of SCR (Selective Catalytic Reduction) systems of marine diesel engines, and specifically relates to a urea solution online preparation device for SCR systems of marine diesel engines. Urea dry powder and deionized water are added into a urea preparation chamber; by means of an electric stirrer, the deionized water and the urea dry powder are intensively mixed; and by using a urea concentration sensor, the density of the urea solution is monitored in real time, so that the stirred urea solution can satisfy the demands of the SCR systems. By using a stirring chamber conveying pump, the prepared urea solution is pumped in to a storage chamber; and by using a liquid level sensor and a temperature sensor, the urea solution in the storage chamber is monitored. According to the urea solution online preparation device, the full-automatic online preparation of the urea solution is realized through the accurate measurement on the urea dry powder and the deionized water, so that the urea cabin volume is effectively decreased, the body space is saved and the benefit is brought to the storage of the urea.

The invention discloses low temperature cooling equipment by taking a refrigerator as a cold source. The low temperature cooling equipment comprises a hood body provided with a vacuum cavity, a refrigerator and a liquid helium pond, a superfluid helium pond and a sample container arranged in the vacuum cavity. A condenser is arranged on a secondary cold head; the superfluid helium pond is locatedin a position below the liquid helium pond; an accommodating cavity of the liquid helium pond communicates to an accommodating cavity of the superfluid helium pond through a throttling pipeline; the sample container is located in a position below the superfluid helium pond, and the sample container is attached and fixed to the bottom surface of the superfluid helium pond; the equipment also comprises a main air inlet pipeline and a gas circulating pipeline; one end of the main air inlet pipeline is connected to helium supply equipment while the other end of the main air inlet pipeline is connected to the accommodating cavity of the liquid helium pond in a communicating manner; and one end of the gas circulating pipeline communicates to the accommodating cavity of an accommodating cavity ofthe superfluid helium pond while the other end of the gas circulating pipeline is connected to the main air inlet pipeline in a communicating manner. The low temperature cooling equipment disclosed by the invention can acquire 1.8K superfluid helium quickly by means of constant temperature high purity helium, is short in precooling time of a cooled sample and is convenient to cool a device needing an extremely low temperature quickly.

The invention discloses an automatic sheet metal part loading, processing and forming device. A sheet metal punch is mounted in the middle of the outer surface of a loading rack, a sheet metal cuttingmachine is mounted in a position, located on one side of the sheet metal punch, of the outer surface of the loading rack, and a measuring mechanism is mounted in a position, located on one side of the sheet metal cutting machine, of the outer surface of the loading rack. The measuring mechanism comprises a measuring rack, a main air cylinder, a movable L-shaped plate, a driven manual telescopic rod, a connecting rod, a round hole and a laser lamp. The measuring rack is mounted in a position, located on one side of the sheet metal cutting machine, of the outer surface of the loading rack. It is convenient to measure the edge of a cut sheet metal part by means of the measuring rack, the main air cylinder, the movable L-shaped plate, the driven manual telescopic rod, the connecting rod, theround hole and the laser lamp, so that the flatness of the edge of the cut sheet metal part is guaranteed. Meanwhile, a phenomenon that the edge of the cut sheet metal part deviates is prevented, so that the sheet metal part is cut more flatly.

The embodiment of the invention provides a group communication method and device, and relates to the technical field of instant messaging. The group communication method comprises the following steps:receiving a group message forwarded by any message server and sent by any group member in a communication group; storing the group message according to a preset message storage structure, and generating a message identifier corresponding to the group message according to a member identifier and a message timestamp included in the group message; and taking the message servers corresponding to theother group members as target servers, and sending the message identifiers to the target servers for storage. The message storage difficulty in the group communication process can be effectively reduced. Meanwhile, the storage resources are saved, and the communication cost is reduced.

The invention discloses a method for manufacturing a large-scale flange forged piece by utilizing a combined tyre die, and the method comprises the following steps: step 1), setting a combined tyre die stack for storing the combined tyre die and a database; step 2), searching for determining whether the combined tyre die stack is empty or not, if so, turning to the step 5); step 3), finding an upper die enabling Dm to be not less than Dm initial and enabling hm to be not less than hm initial in the tyre die database, finding out all lower dies which can be combined with the upper die, performing pairing treatment on the upper die and the lower dies, screening out the combined tyre die which meets the initial size of a die cavity of the tyre die, calculating the volume of the die cavity, selecting the combined tyre die meeting the requirements as the finally selected combined tyre die and turning to the step 4); if the combined tyre die is not found, turning to the step 5); step 4), using the finally selected combined tyre die to manufacture the large-scale flange forged piece and turning to the step 6); step 5), manufacturing the brand new combined tyre die and manufacturing the large-scale flange forged piece; and step 6), further performing measurement and updating after the upper die and the lower die are used and placing and storing the upper die and the lower die into the combined tyre die stack.

The invention belongs to the technical field of application of SCR (Selective Catalytic Reduction) systems of marine diesel engines, and specifically relates to a urea solution online preparation device for SCR systems of marine diesel engines. Urea dry powder and deionized water are added into a urea preparation chamber; by means of an electric stirrer, the deionized water and the urea dry powder are intensively mixed; and by using a urea concentration sensor, the density of the urea solution is monitored in real time, so that the stirred urea solution can satisfy the demands of the SCR systems. By using a stirring chamber conveying pump, the prepared urea solution is pumped in to a storage chamber; and by using a liquid level sensor and a temperature sensor, the urea solution in the storage chamber is monitored. According to the urea solution online preparation device, the full-automatic online preparation of the urea solution is realized through the accurate measurement on the urea dry powder and the deionized water, so that the urea cabin volume is effectively decreased, the body space is saved and the benefit is brought to the storage of the urea.

The invention relates to the technical field of methanol gasoline, in particular to an M85 methanol gasoline and a preparation method thereof. According to the preparation method, methanol, gasoline, sodium methoxide, pine oil, waste oil, glycerin, acetone and polyoxyethylene ether are mixed according to a proportion; the pine oil and the waste oil are separately treated through the combination of preparation process steps; the treated pine oil and waste oil are added for mixing; ultrasonic mixing treatment is performed during treatment processes, so that all raw materials are dispersed more uniformly, mutual concurrent effects among the methanol, gasoline, waste oil and other raw materials are further achieved, and then the quality of the methanol gasoline is improved. Particularly, the phenomenon that the methanol gasoline is easy to be subjected to stratification when the water content reaches 3% is avoided. Therefore, the water resistance of the methanol gasoline is improved, the guarantee period of the methanol gasoline is prolonged, and the storage difficulty of the methanol gasoline is lowered.

The embodiment of the invention relates to a rocket thunder leading electric data acquisition device and method, and a thunder leading line length determination method. The rocket thunder leading electric data acquisition device comprises a thunder leading emission device and an acquisition device connected with the thunder leading emission device, and the acquisition device comprises a thunder parameter acquisition device and a thunder image acquisition device. According to the rocket thunder leading electric data acquisition device, continuous thunder strike is generated through the thunderleading launching device, the thunder current waveform and the thunder image of the continuous thunder strike are acquired through the thunder parameter acquisition device and the thunder image acquisition device, acquisition of continuous thunder strike parameters is achieved, and data are provided for analyzing the influence of thunder strike on an electric power system. The technical problem that the result of analyzing the harm of lightning stroke to the power system is inaccurate due to lack of continuous lightning stroke parameter acquisition in the prior art is solved. The method for determining the length of the thunder leading wire can guide selection of the thunder leading wire, considers both the thunder leading success rate and the similarity between rocket thunder leading andactual thunder, and improves the thunder leading success rate.

The invention relates to moisture-proof silicon-magnesium-boron-zinc composite granular fertilizer. The moisture-proof silicon-magnesium-boron-zinc composite granular fertilizer is prepared from 20-70% by weight of magnesium fertilizer, 10-30% by weight of silicon fertilizer, 5-10% by weight of boron fertilizer, 3-8% by weight of zinc fertilizer, 3-5% by weight of a binder, 3-8% by weight of an aid 1 and 5-56% by weight of an aid 2. The magnesium fertilizer is at least one of anhydrous magnesium sulfate, magnesium sulfate monohydrate, magnesium sulfate pentahydrate and magnesium sulfate heptahydrate. The silicon fertilizer is at least one of sodium silicate and sodium metasilicate. The boron fertilizer is at least one of borax, boric acid and boron-magnesium fertilizer. The zinc fertilizeris at least one of zinc sulfate heptahydrate, zinc sulfate monohydrate and zinc oxide. The binder is at least one of sodium carboxymethylcellulose and corn starch. The aid 1 comprises quicklime and calcium-magnesium phosphate fertilizer in a mass ratio of 1-8: 1. The aid 2 comprises high clay and attapulgite in a mass ratio of 1: 1-3. The moisture-proof silicon-magnesium-boron-zinc composite granular fertilizer has excellent anti-mildew properties, is not easy to agglomerate and has a high fertilizer utilization rate.

The invention relates to a preparation method of blueberry fruit rice wine. The preparation method comprises the following steps: preparing blueberry juice with blueberries as raw materials, and adding high fructose syrup and / or honey to prepare a blueberry sweet juice flavoring agent; mixing the blueberries with well-done rice and yeast lyophilized powder to carry out fermentation to prepare a fruit rice wine base; impregnating mulberries with distilled liquor with alcohol content above 58%vol to prepare mulberry wine, and blending the fruit rice wine base with the mulberry wine; finally flavoring by using the flavoring agent. The fruit rice wine prepared by adopting the method has the characteristics of harmonious wine body, prominent wine aroma, proper wine taste and intense wine feel.

The invention relates to high-precision land consolidation surveying and mapping equipment, which comprises a tripod, a supporting box is welded to the middle of the top end of the tripod, a paper placing plate is embedded into the middle of the front face of the supporting box, a positioning rod is welded to the position, located on one side of the top end of the paper placing plate, of the frontface of the supporting box, and notches are symmetrically formed in the edges of the bottom end of the positioning rod. A spring column is fixedly installed in the middle of the inner wall of the notch, connecting round rods are symmetrically welded to one ends of the positioning rods, and moving strips are slidably connected to the outer surfaces of the connecting round rods, drawing paper can be conveniently placed through the paper placing plate, the positioning rods, the notch, the spring column, the connecting round rods, the moving strips and an arc-shaped plate, and the placing difficulty of the drawing paper is reduced. Meanwhile, drawing paper with different thicknesses can be extruded and fixed, the drawing paper can be conveniently arranged, wrinkles on the surface of the drawing paper are reduced, drawing of personnel is facilitated, and the drawing difficulty is reduced.

The image data processing method comprises the following steps: acquiring image data acquired by shooting equipment in real time, and determining an acquisition time point from the image data at a predetermined interval; carrying out difference processing on the previous frame of picture and the next frame of picture at the acquisition time point, and screening and obtaining a difference image; extracting a contour line of the differential image, and if the position range of the contour line is located in a specified area, obtaining a previous frame of picture and a next frame of picture of the differential image as a first target frame of picture and a second target frame of picture respectively; intercepting a first target frame picture and a second target frame picture according to theposition range of the contour line, obtaining a first screenshot and a second screenshot, and returning the first screenshot and the second screenshot to a server for processing. According to the technical scheme, under the condition that the target object or the observation area is monitored in real time or continuously, the changed first screenshot and the changed second screenshot can be transmitted back, the data processing speed and efficiency are improved, and the storage resource requirement is reduced.

The box sealing device comprises a bottom plate, the top of the bottom plate is fixedly connected with an upper machine core through a mounting frame, the top of the bottom plate is slidably connected with a clamping frame, and guide wheels are evenly mounted at the top of the inner side of the clamping frame; the end, away from the clamping frame, of the top of the bottom plate is fixedly connected with a driving frame, and the top of the inner side of the driving frame is rotationally connected with a driving wheel. According to the box sealing device for the multiple box bodies and the box sealing method of the box sealing device, the purpose of continuous packaging of the multiple box bodies can be achieved, folding of the upper covers of the box bodies can be achieved through a power source for driving the box bodies to move, the upper covers of the box bodies can be folded without an additional power source, the box body packaging cost is reduced, the flexibility degree is high, and the box sealing efficiency is high. The intensity of airflow sprayed to the folding upper cover of the box body can be adjusted according to needs, and automatic layered placement of the packaged box body can be achieved.

The invention provides a two-dimensional convolution implementation method and device. The method comprises the steps: one-dimension processing of two-dimensional input data, wherein two-dimensional input data is expanded into one-dimensional data according to a set dimension; convolution core decomposition, wherein the two-dimensional convolution core is decomposed into independent rows or columns according to the expansion mode of the two-dimensional input data; sub-result calculation, wherein the one-dimensional data is subjected to one-dimensional convolution operation respectively with the decomposed convolution core to correspondingly obtain a plurality of one-dimensional sub-result sequences; and sub-result merging, wherein all corresponding data in the multiple one-dimensional sub-result sequences are merged to obtain and output a final two-dimensional convolution calculation result. The invention further provides a two-dimensional convolution implementation device. According to the method and the device, all two-dimensional data can be converted into one-dimensional data, and two-dimensional convolution operation can be completed through one-dimensional convolution operation, so that the control complexity and the on-chip data routing difficulty are greatly simplified.

The invention relates to a data dimension reduction method based on a maximum ratio and linear discriminant analysis, and belongs to the field of image classification and pattern recognition. The method comprises the steps of constructing a data matrix, a label vector and a label matrix; calculating an intra-class covariance matrix and an inter-class covariance matrix; constructing an optimization problem of linear discriminant analysis based on the maximum ratio sum; and solving a projection matrix capable of maximizing the objective function by using an alternating optimization iterative algorithm. According to the method, the objective function of the linear discriminant analysis method based on the maximum ratio sum is established, the problem that traditional linear discriminant analysis tends to select features with small variance and weak discriminant ability is avoided, and features more beneficial to classification can be selected. The method does not depend on calculation of an inverse matrix of an intra-class covariance matrix, does not need data preprocessing, and improves the adaptability of the data dimension reduction method to original data features.

The invention provides a rice machining process. Selenium-rice rice is used as a raw material; and firstly, the selenium-rice rice is subjected to three-machine series rice milling to prepare husked rice, then the husked rice is subjected to two-machine series rice milling to obtain refined rice and an aleurone-embryo mixture, then the aleurone-embryo mixture is subjected to superfine grinding toprepare superfine powder with a particle size smaller than or equal to 10mum, the superfine powder is dispersed into basic aqueous solution to prepare pre-treating liquid, and finally, the refined rice is soaked in the pre-treating liquid to carry out vacuum freezing drying, so that films are formed on the surfaces of the refined rice to obtain the pre-treated refined rice, then the pre-treated refined rice is flushed by utilizing the basic aqueous solution, and natural air-drying is carried out. In the machining process of the rice machining process provided by the invention, after an aleurone layer and embryos, which are rich in nutrient substances, are prepared into the superfine powder, the superfine powder is recoated to the surfaces of the refined rice, and finally, the films are formed on the surfaces by utilizing the basic aqueous solution so as to effectively avoid loss and deterioration of the nutrient substances such as selenium, proteins and the like in the machining and storing process.

The invention discloses a large-scale cluster control method based on second-order communication topology in the technical field of artificial intelligence. The method comprises the steps that at least two intelligent main bodies with autonomous operation capacity form a first-order communication topology, and the intelligent main bodies in the first-order communication topology comprise followers and unique leaders; any intelligent body is provided with a plurality of sub-groups, the sub-groups form a second-order communication topology, and a leader of the second-order communication topology is one follower of the first-order communication topology. Aiming at the defect of strong parameter coupling caused by a traditional method in large-scale cluster system control, a follower in a first-order communication topology is set as a leader in a second-order communication topology, so that the relation between different communication topologies is reduced, subgroup systems under different communication topologies are enabled to operate independently, and the defect of strong parameter coupling caused by the traditional method is solved.

The invention belongs to the technical field of microorganism detection, and particularly relates to a microorganism sensor. The microorganism sensor comprises a shell, a signal identification element, a signal receiving sheet, an electric conductive substrate, an insulating substrate, a detection electrode, a reaction layer, an injection needle cylinder, a needle tube fixing groove, a piston rod,an extrusion rotary knob, a detection tentacle, an electric signal box, an injection port and a shunt tube; a signal identification element is fixedly connected inside the shell; the signal receivingelement is arranged at one end of the signal identification element; the needle tube fixing groove is formed in the middle of the shell; the injection needle cylinder is used for independently storing the microorganism or microorganism derivatives for detection, and is used for independently injecting into the microorganism sensor to use, the used microorganism or microorganism derivatives can beindependently stored, the storage difficulty is reduced, and the different microorganisms or microorganism derivatives can be used for detection, so that the microorganism sensor is not the disposable consumables.

The present invention provides a method, device, and user terminal of text synonymous similarity, involving the computer field.The method includes: Create the first character vector according to the first character vector corresponding to each character in the first text, and establish the second character vector matrix according to the second character vector corresponding to each character in the second text; use artificial nerves to use artificial nervesNetwork algorithm, the first character vector in the first character lines shared by the parameter sharing, and the second character vector in the second character lines matrix; according to the optimized first character vector and the optimized second character vector, calculate the first firstSemantic similarity between a text and the second text.This method is calculated by similarity through character vectors. Compared with the word vector, due to the limited number of characters, it not only reduces the difficulty of storing the preset character vector list, but also exempts the needs of the word vector pre -training for additional large statements.Essence

The invention discloses a combined type gravure rotary press which comprises a press main body, a control button is arranged on one side of the press main body, a printing roller is arranged on one side of the press main body, a material receiving box is arranged between the two sides of the press main body and located below the printing roller, and a flow dividing device, a buffer device and a flow guiding device are arranged in the material receiving box; and the flow dividing device is provided with a limiting frame, a rubber ring is arranged at one end of the limiting frame, and protective frames are symmetrically arranged on the top of the inner side of the rubber ring. The invention relates to the technical field of printing press. According to the combined type gravure rotary press, the purpose that printed products are automatically stacked and stored according to the quality after printing is completed is achieved, the storage difficulty of the printed products is lowered, abrasion caused by friction between the printed products and the device in the moving process is reduced, the service life of the device is prolonged, the quality of the printed products is improved, and the cooling capability of the device is improved.

The invention belongs to the technical field of Chinese phrase learning, and particularly relates to a Chinese phrase learning tool. The Chinese phrase learning tool comprises a fixed base, wherein a storage groove is formed in the middle of the top end of the fixed base, storage plates are hinged to the edges of the two sides of the inner wall of the storage groove, and a plurality of supporting clamping grooves are formed in the middle of the bottom end of the inner wall of the storage groove; a first magnetic suction plate is installed on the edge of the bottom end of the inner wall of the storage groove, limiting grooves are formed in the middle of the bottom ends of the storage plates, and supporting clamping plates are installed in the limiting grooves in a hinged mode. Through cooperative use of a first magnetic attraction block and a second magnetic attraction block, a blocking plate can be magnetically attracted and fixed; through cooperative use of a multi-stage telescopic rod and the blocking plate, the distance between a user and a tablet learning computer can be limited; by limiting the distance between the tablet learning computer and the user, the eyesight of the user can be protected, and the phenomenon that the eyesight of the user is reduced is avoided.

The invention relates to a moisture-proof silicon-magnesium composite granular fertilizer and a preparation method thereof, wherein the composite granular fertilizer is prepared from the following rawmaterials by weight: 25-70% of a magnesium fertilizer, 15-35% of a silicon fertilizer, 3-8% of a sustained release agent, 7-20% of an auxiliary agent 1, and 5-15% of an auxiliary agent 2, wherein themagnesium fertilizer is at least one selected from anhydrous magnesium sulfate, magnesium sulfate monohydrate, magnesium sulfate pentahydrate and magnesium sulfate heptahydrate, the silicon fertilizer is at least one selected from sodium silicate and sodium metasilicate, the sustained release agent is at least one selected from sodium carboxymethyl cellulose and corn starch, the auxiliary agent 1is a mixture of montmorillonite and white carbon black according to a mass ratio of 1-8:1, and the auxiliary agent 2 is a mixture of bentonite and magnesium stearate according to a mass ratio of 1-4:1. According to the present invention, the composite granular fertilizer can effectively prevent deliquescence so as to reduce the storage difficulty of the fertilizer and the storage cost of the fertilizer enterprise, and is suitable for mechanized application so as to improve the application efficiency and the utilization rate of the fertilizer.

The invention relates to the technical field of methanol gasoline, in particular to an M85 methanol gasoline and a preparation method thereof. According to the preparation method, methanol, gasoline, sodium methoxide, pine oil, waste oil, glycerin, acetone and polyoxyethylene ether are mixed according to a proportion; the pine oil and the waste oil are separately treated through the combination of preparation process steps; the treated pine oil and waste oil are added for mixing; ultrasonic mixing treatment is performed during treatment processes, so that all raw materials are dispersed more uniformly, mutual concurrent effects among the methanol, gasoline, waste oil and other raw materials are further achieved, and then the quality of the methanol gasoline is improved. Particularly, the phenomenon that the methanol gasoline is easy to be subjected to stratification when the water content reaches 3% is avoided. Therefore, the water resistance of the methanol gasoline is improved, the guarantee period of the methanol gasoline is prolonged, and the storage difficulty of the methanol gasoline is lowered.

The invention provides a stainless steel passivating method for passivating stainless steel by adopting a mixed solution of sulfuric acid and nitrate. The mixed solution contains the sulfuric acid with the mass percent of 0.45% to 2.7% and 45g / L to 70g / L of NaNO3 or KNO3. The mixed solution is easy to store and low in pollution level, the surface of the stainless steel passivated with the stainless steel passivating method is attractive in appearance, and the effect which is the same as the effect of pure nitric acid passivation can be realized.