67results about How to "High degree of expansion" patented technology

The invention discloses a fast intelligent commodity recommendation system. The recommendation system provides personalized services for customers according to own demands of a commodity provider. The recommendation system comprises a merchant demand analysis module and a commodity recommendation module. A merchant demand is expressed in a form of rules; and a customer transaction database stores transaction records of a merchant. The merchant demand analysis module evaluates commodities operated by the merchant according to the merchant demand and the customer transaction database to generate a commodity library to be recommended. The commodity recommendation module generates a recommended commodity list meeting the own requirement of a current customer according to the customer transaction database and the commodity library to be recommended to provide commodity services for the current customer. The commodity recommendation generated by the system is not only customized for the customer, but also is customized for the merchant, can greatly increase the sales and the profits for the merchant, can improve the service speed of the commodity recommendation system to realize real-time service, has high expandability, and can meet the requirements of large merchants.

The invention belongs to the field of concrete, and particularly discloses C140 high-strength concrete and a preparation method thereof. The concrete is prepared from the following materials in partsby weight: 490-570 parts of cement, 45-65 parts of coal ash, 100-120 parts of mineral powder, 65-85 parts of desulphurization ash, 20-40 parts of silica fume, 750-950 parts of coarse aggregate, 400-600 parts of fine aggregate, 5.5-7.5 parts of a water reducer, 10-20 parts of a corrosion inhibitor, 60-100 parts of fibers and 145-160 parts of water. The invention provides the C140 high-strength concrete; the concrete has a good slump, good extended degree, good compressive strength, and excellent comprehensive performance, and meanwhile, the problems of resource shortage of traditional cement admixtures of the mineral powder, the coal ash, the silica fume and the like, and limited resourced approaches and a low utilization rate of the desulphurization ash are solved.

The invention relates to a low-temperature microwave expansion process of cut tobacco. The process comprises the following steps of: putting expanded cut tobacco with the water content of 40-70 percent by rating resurgence in a die; then, freezing into blocks at a temperature of 55 DEG C below zero to 35 DEG C below zero; conveying the cut tobacco blocks into a microwave continuous freeze-dried system to sublimate and dry until the water content is 3-8 percent; and finally resurging to the water content of 12-13 percent to obtain a finished product of expanded cut tobacco. The cut tobacco is expanded by the process of the invention has the advantages of remarkable aroma and fragrance, lower breakage rate, remarkably lessened odor and controllable expansion degree.

An embodiment of the invention provides a method and a device for adjusting recommendation lists. The method includes acquiring application download history records of users, computing proportions of game application and non-game application to total downloaded application of the users within a set time on the basis of the application download history records so as to acquire game application preference indexes and non-game application preference indexes, and generating redundancy recommendation lists for the users; adjusting the redundancy recommendation lists on the basis of the computed game application preference indexes and the computed non-game application preference indexes to form final recommendation lists; displaying the final recommendation lists for the users. Distribution of game application and non-game application in the final recommendation lists keeps corresponding to the game application preference indexes and the non-game application preference indexes of the users. The method and the device have the advantage that personalized recommendation can be carried out by the aid of the recommendation lists according to difference of interest and preference of the different users.

The invention discloses a colorful TPU (thermoplastic polyurethane) foaming material, a preparation method and an application. The colorful TPU foaming material comprises colorful foaming particles or colorful foaming sheets, pigment concentration of the colorful foaming particles or the colorful foaming sheets is 0.01%-5% by weight, pigments inside and outside the colorful TPU foaming material have the same concentration, the hardness of the colorful TPU foaming material is HA 5-65, the density is 0.05-0.5 g / cm<3>, and the average cell size is smaller than 100 mu m. The colorful TPU foaming material has the characteristics of good inside and outside uniformity, absence of wrinkles on the surface and the like.

The present invention discloses a high-temperature protection device for potted plants. The high-temperature protection device for the potted plants comprises a base seat, an upper end of the base seat is fixedly connected with a pot body, an empty cavity is formed in an inner bottom part of the pot body, the empty cavity is internally provided with evaporated liquid, a sliding plug cavity is formed in an inner wall of the pot body, a sliding plug is slidably connected with an inner wall of the sliding plug cavity, and the pot body is provided with a sun-shading device for shading plants in the pot body. When temperatures of soil in the pot body rise, a first ball valve is opened by deformation of a first memory metal, so that the evaporated liquid after heating vaporizing expanding pushesthe sliding plug to move upwards on the inner wall of the sliding plug cavity, water in the sliding plug cavity flows out from liquid spray holes to water green plants in the pot body, when sunlightirradiation in summer is strong, a second ball valve is opened by deformation of a second memory metal, so that the evaporated liquid after vaporizing expanding inflates air into a folding air bag, and the folding air bag is opened to shade the green plants to avoid influence of long-time strong irradiation of outdoor sunlight on the green plants on normal growth of the plants.

The invention discloses a graphene preparation method comprising the following steps: a, graphite intercalation compound powder is added into a composite inflation fluid, and an inflation reaction is carried out under a temperature of 0-100 DEG C, such that inflated wormlike graphene aggregate suspension liquid is obtained; b, the wormlike graphene aggregate suspension liquid is subjected to a filtration treatment; c, the wormlike graphene aggregate is sequentially washed with a metal ion complexing agent and water, such that a wormlike graphene aggregate wet material with a pH value of 6-8 is obtained; d, the washed wormlike graphene aggregate wet material is added into water; an ultrasonic wave vibration treatment is carried out for 0.5-20h, such that stripping is realized and graphene is dispersed in water; and a graphene solution is obtained; and e, the water in the graphene solution is removed, such that graphene powder is obtained. With the method provided by the invention, hundreds of kilograms of a high-quality graphene product can be produced in one batch.

The invention discloses a method for preparing a non-shrinkage grouting material, and belongs to the technical field of concrete preparation. According to the method, mixed fermentation is carried out on taraxacum kok-saghyz rodin roots and activated sludge, and the mixed fermentation product is mixed with activated quartz sand and metakaolin, earthworms are fed with the mixture, under the action of the earthworms, due to the elastic components of composite rubber of the quartz sand and the metakaolin, a grouting material is not cracked or shrunk after being hardened, furthermore calcium aluminate powder is wrapped with chitosan, then calcium aluminate can be slowly released, aluminum oxide and quartz in the calcium aluminate can generate a net-shaped gel polymer when being hardened, and then later strength of the grouting material is improved; in addition, calcium aluminate reacts with cement to generate ettringite, then the grouting material is densified, and the strength of the grouting material is improved; and the non-shrinkage grouting material prepared by using the method has the characteristics of being high in early strength, rapid in later strength development, large in effective holding surface with a substrate, and high in caking property, is free of phenomena such as shrinkage or cracking after application, and has relatively good use prospects.

The invention belongs to the technical field of phosphorous expansion type flame retardants, and discloses a flax cellulose-based phosphorus expansion type flame retardant and a preparation method and application thereof. The flame retardant is prepared from, by weight, 2-10 parts of carbon source, 1-10 parts of acid source and 1-10 parts of air source; the carbon source is carboxyl flax fiber high in carbonyl content, the carboxyl flax fiber high in carbonyl content is prepared through the following steps that the flax fiber is soaked in water, H2O2 and a catalyst are added, a stirring reaction is conducted, and the carboxyl flax fiber high in carbonyl content is obtained. The invention further provides an epoxy resin composite material based on the flame retardant. The flame retardant takes the carboxyl flax fiber high in carbonyl content as the carbon source, the char yield ranges from 20% to 27.2%, and combustible gas released through thermolysis is less. The limit oxygen index of the obtained epoxy resin composite material exceeds 29, the vertical flame rating is V-0, the release quantity of the gross heat of combustion is decreased by more that 60%, and the flame retardant has the advantages of being low in water absorption, high in mechanical property and the like.

The invention discloses a constant-pressure clamping device for processing of strip-shaped optical glass. The constant-pressure clamping device comprises a base, mounting seats, a clamping air bag, a liquid storage cylinder, a piston and an electromagnet. In the using process, to-be-processed optical glass is placed between the mounting seats, in the initial state, due to the fluidity of fluid and the elasticity of the clamping air bag, the optical glass can be smoothly placed, and thus the optical glass in different sizes can be conveniently placed between the mounting seats; then the electromagnet is electrified, the electromagnet generates magnetism when electrified, the polarities of the sides, close to each other, of the piston and the electromagnet are the same, the magnetic repulsion force between the electromagnet and the piston drives the piston to descend, thus the fluid is squeezed into the clamping air bag, the clamping air bag is expanded, and thus the optical glass is fixed and clamped; and the optical glass is clamped through the flexible clamping air bag, thus the enough clamping force can be kept, and the circumstance that the optical glass is damaged in the clamping process can also be avoided.

The invention discloses a one-dimensional DOA estimation method by utilizing secondary virtual extension of a multi-frequency signal. The estimation method increases an array freedom degree based on auniform array structure, by utilizing the multi-frequency combination signal and by the secondary virtual extension. The method comprises the steps of transmitting multiple special-frequency narrow-band signals, separating time domain signals with corresponding frequency by a narrow-band filter at a receiving array element, obtaining a frequency domain receiving data model by fourier transformation, performing primary extension on a uniform physical array into a virtual nonuniform array by utilizing a frequency focusing technique and data covariance matrix reconstruction, and finally performing vectorization processing by combining the existing DOA estimation method based on a nonuniform array. The method realizes secondary virtual extension of the virtual nonuniform array, and obtains the final virtual uniform array. The method realizes secondary extension of an array aperture and increase of DOA estimation accuracy by the above technical means.

The invention relates to a solid waste environment-friendly treating integrated device which comprises a sludge collecting pumping device and a sludge treating device, wherein the sludge collecting pumping device is used for collecting sludge and conveying the sludge to the sludge treating device; the sludge collecting pumping device comprises a sludge collecting box, a spiral conveying device arranged in the sludge collecting box and a pumping device connected with an output end of the sludge collecting box; the sludge treating device comprises a powder loading storage device and a sludge stirring device; the sludge stirring device comprises a stirrer, a sludge metering cabin and a powder metering cabin above the stirrer; the powder loading storage device and the sludge collecting pumping device are respectively connected with the powder metering cabin and the sludge metering cabin through conveying pipelines; a sludge discharging device is arranged under the stirrer; the sludge stirring device is used for mixing and stirring the powder with the sludge and then discharging through the sludge discharging device. The solid waste environment-friendly treating integrated device can realize the automatic treatment for the sludge and is high in treating efficiency and effect.

The invention belongs to the field of gelatin preparation, and particularly relates to a production method of a pharmaceutical gelatin by an enzyme process. The gelatin prepared by the method can satisfy the index requirements of gelatins for pharmaceutical capsules. The method basically comprises the following steps: leather pretreatment, enzyme-process gelatin extraction, filtering, ion exchange, membrane concentration, straight plate drying, sterilization, gumming, drying, pulverization, and inspection to obtain the finished product. The leather treatment time is obviously shorter than that of the alkaline process, and the acid and alkali consumptions are greatly reduced; and besides, the yield of the high-quality gelatin obtained by the method is greatly enhanced.

The invention discloses a gelatin production alkali soaking device and a production method thereof, and relates to the field of gelatin processing equipment. The device comprises a roller, a separation mechanism, a shaking mechanism and a stirring mechanism. A plurality of protruding blocks are fixedly arranged on the inner wall of the roller, a protection shaft is fixedly arranged outside the roller, an opening is formed in the lower surface of the roller, an extraction box is arranged exactly under the roller, and a positioning groove matched with the protection shaft is formed in the extraction box; the separation mechanism comprises an extraction cylinder, a rotating shaft, an extrusion block and a hook; and the extraction cylinder is positioned in the roller and is concentric with theroller. According to the device, the separation mechanism and the shaking mechanism are arranged, the purpose of shaking the roller left and right is achieved, the purpose of uniform distribution isachieved, and leather is prevented from accumulating together; when the extraction cylinder rotates, the hooks on the surface of the extraction cylinder can hook the leather which is uniformly distributed on the roller, and the hooked leather can cover the outer wall of the extraction cylinder so that the leather is prevented from being overlapped with each other, and the contact area between theleather and alkali liquor is increased.

The invention provides a user behavior sequence anomaly detection method, a terminal and a storage medium. The method comprises the steps of obtaining user behavior information in a preset time period; aggregating the characteristic attributes according to a sequence; configuring behaviors of the user in a preset time period into row vectors, and then forming a behavior row vector time sequence; extracting behavior row vector time sequences of any two users, calculating correlation coefficients, and judging vector similarity; searching the optimal distance between the behavior row vector timesequences of the two users by adopting a dynamic warping algorithm; calculating a distance average value and a standard deviation among all users; and if the distance between the user and other usersis greater than +3 times of the standard deviation of the average value, judging that the user is an abnormal user. User behavior details can be analyzed, the problems that a feature matrix cannot begenerated and sequence lengths are inconsistent due to the fact that a user does not have continuous behaviors are solved, and the false alarm rate of anomaly detection is reduced. Therefore, abnormalbehaviors hidden in the group can be identified, and the security of data information is ensured.

The pregressive intestinal canal dilator includes four portions of head end, supporting portion, tail end and operation bar. Said dilator possesses the pregressive increment of dilatation, accurate dilatation, is easy to be operated and controlled, can alleviate patient's suffering, has no need of anesthetization, and does not produce complicating diseases of laceration of intestinal wal, bleeding and intestinal fistula.

The invention discloses a cultivation method for potatoes. The cultivation method comprises the following steps: carefully selecting potato seeds; sterilizing and disinfecting the potato seeds; accelerating germination of the potato seeds; applying fertilizers and stacking soil; after transplantation, continuously carrying out topdressing and watering and spraying insecticide. The potato cultivation method disclosed by the invention has the advantages that the sprayed insecticide does not contain pesticide ingredients, so that the pesticide ingredients harmful to a human body can be prevented from being introduced, the safety of food is ensured, and meanwhile, the differentiation and the expansion degree of potato roots also can be effectively improved. In addition, the cultivation method has the advantages of low cost, high yield, convenience in management and the like, and is suitable for large-scale potato cultivation. In addition, the invention also discloses a cultivation system.

The invention belongs to the field of concrete and particularly discloses C150 high-strength concrete and a preparation method thereof. The concrete consists of the following materials in parts by weight: 500 to 580 parts of cement, 45 to 65 parts of coal ash, 110 to 130 parts of ore powder, 65 to 85 parts of solid sulfur ash, 20 to 40 parts of silicon ash, 750 to 950 parts of crude aggregate, 400to 600 parts of fine aggregate, 5.5 to 7.5 parts of water reducer, 10 to 20 parts of corrosion inhibitor, 100 to 150 parts of fiber and 145 to 165 parts of water. The C150 high-strength concrete provided by the invention has good slump degree, expansion degree and compressive strength, has excellent comprehensive property, and overcomes the problems of shortage of the traditional cement admixtureresources such as the ore powder, the coal ash and the silicon ash, limited recycling route of the solid sulfur ash and low utilization rate of the solid sulfur ash.

The invention belongs to the technical field of thermoplastic materials, and in particular relates to a preparation method for polyetherimide foam particles. The preparation method comprises the following steps: obtaining a polyetherimide raw material; performing extrusion on the polyetherimide raw material to form thermoplastic polyetherimide particles by adopting a melt extrusion method; and injecting the thermoplastic polyetherimide particles into a high-pressure mixed fluid composed of supercritical fluid carbon dioxide and an organic solvent to obtain the polyetherimide foam particles. The method provided by the invention can significantly improve solubility of polyetherimide to a carbon dioxide physical foaming agent, and reduce foaming temperature, so that the polyetherimide can realize high-rate expansion at lower foaming temperature, and the polyetherimide foam particle material having a high expansion degree, a smooth and clean surface, soft texture, a uniform foam structure,a large foam density and excellent tensile properties is obtained.

The invention discloses a combined multi-station comprehensive industrial robot practical training platform, which comprises a basic practical training platform and a comprehensive practical training platform, and the basic practical training platform is detachably connected with the comprehensive practical training platform; a robot, a workpiece position changing machine and a workbench are arranged on the surface of the basic practical training platform; a robot control cabinet and a handheld demonstrator are arranged in the basic practical training platform; the robot control cabinet and the handheld demonstrator are used for controlling operation of the robot; an electrical installation drawer is arranged in the comprehensive practical training platform; a tool magazine, an automatic processing and detecting production line, a stereoscopic warehouse and a man-machine interface are arranged on the table surface of the comprehensive practical training platform; the workpiece position changing machine, the stereoscopic warehouse, the tool magazine and the workbench are distributed within the working radius range of the robot. According to the invention, a structural modular design is adopted, and the reuse rate is high; the technical comprehensiveness is high, and functions are powerful; the expansion degree is high, and secondary development is supported; the application range is wide.

The invention relates to a growing method for sweet potatoes, which includes the following steps: after ripe sweet potatoes are cut into tuberous roots, sweet potato seeds are obtained; under the condition of sunlight, the sweet potato seeds are insolated until the surfaces are bright; the germination of the sweet potato seeds is accelerated; fertilizer is applied, and soil is piled up; the sweet potato seeds are transplanted. In addition, the invention also provides a growing device. The growing device for sweet potatoes can prevent the introduction of pesticide ingredients harmful to the human body, thus guaranteeing food safety; meanwhile, the growing device for sweet potatoes also can be used for effectively increasing the differentiation and swelling degree of the tuberous roots of sweet potatoes; in addition, the growing device for sweet potatoes has the advantages of low cost, high yield, convenience in management and the like, and is suitable for the large-scale cultivation of the sweet potatoes.

The invention belongs to the technical field of gloves and particularly relates to rubber gloves. Each rubber glove comprises a glove body, wherein a wrist part, a palm part and finger parts are sequentially arranged on the glove body; a cloth layer is arranged on an inner layer of the glove body, and an outer layer is a rubber layer; a group of arc-shaped No.1 air bags are arranged between the rubber layer and the cloth layer of the finger parts, and No.1 plates are fixedly connected on the inner sides of the No.1 air bags; arc-shaped No.2 air bags are arranged between adjacent No.1 air bags,and No.2 plates are fixedly connected to the inner sides of the No.2 air bags; the No.1 air bags and the No.2 air bags are in end-to-end contact to constitute support rings to be nested on the fingerparts; and an air blowing bag is arranged at the wrist part and communicated with atmosphere through an air inlet pipe and a one-way valve, and the air blowing bag is communicated with the No.1 air bags and the No.2 air bags through pipelines. The No.1 air bags and the No.2 air bags are inflated by extruding the air blowing bag, so that the diameters of the support rings become large, the fingerparts are opened, fingers are conveniently inserted into the finger parts of the glove, and convenience during wearing of the gloves is increased.

The invention provides an uplift pile, and belongs to the technical field of pile foundation engineering. The uplift pile comprises a pile body and a pile head, wherein the pile head is movably arranged at the lower part of the pile body; and a bottom plate is arranged at the bottom of the pile body, a boss matched with the pile head is arranged on the lower surface of the bottom plate, a one-waygrouting pipe penetrates through the bottom plate and the boss, and the arrangement of the boss can prevent the pile head from deviating in the pile driving process. The pile head is formed by splicing a plurality of sub-shells, and the diameter of the bottom of the pile head is not larger than that of the pile body, so that a gap is prevented from being formed between the pile body and a soil layer, and perpendicularity of the pile body and friction between the surface of the pile body and the soil layer are guaranteed; when high-pressure concrete slurry is injected into the pile head, the sub-shells expand, an expanded head is formed at the bottom of the pile body, and the continuously-introduced high-pressure concrete slurry is combined with the soil layer to form a cement stone body after overflowing so that underground slurry can be prevented from being mixed into the expanded head, and therefore the structural strength of the expanded head is guaranteed; and holes formed in the opening process of the pile head are filled with the injected concrete slurry in time, and no hole is formed in the bottom of the pile body, so that the compression resistance of the pile body is effectively guaranteed.

The invention discloses a planting method of millettia specisoa Champ with high yield. The planting method comprises the steps of (1) selecting field parcels or land parcels with convenient irrigationand drainage, applying decomposed farmyard manure, and then conducting tillage with a rotary tillage machine and mixing the farmyard manure with soil, wherein the tillage depth is 35-40 centimeters;(2) conducting hole sowing on seeds of millettia specisoa Champ in open and wet sandy soil, then re-covering the seeds of millettia specisoa Champ with a layer of thin soil, then covering the soil with a layer of straw, finally, covering the straw with a musaceae or banana leaf, and then conducting watering once after 4 pm every day; (3) after seedlings of millettia specisoa Champ grow to 15-20 centimeters in length, transplanting the seedlings onto prepared ridges; (4) after transplanting is completed, erecting a shading net at the position, 2-3 meters higher than soil, above each ridge, wherein the shading net is not erected above a furrow between every two adjacent ridges, and light permeating is allowed therethrough; 2 months after transplanting, cutting off a main branch of each seedling, leaving 2-4 lateral branches on each seedling, then pouring decomposed human excreta or biogas slurry, and afterwards, conducting fertilizer application and watering at the right time. By means of the planting method, the use of a large amount of pesticide and chemical fertilizer is not needed, the situation that the pesticide residues exceed the standard is avoided, the tuber growth speed ofmillettia specisoa Champ is high, and the swelling degree is high.

The invention discloses a crawling driving system of an artillery barrel robot. The crawling driving system of the artillery barrel robot can push a measuring system to crawl, record and correct the circumferential pose, and meanwhile, the pipe wall pressure can be adjusted so as to guarantee the advancing stability. The design implementation of the system comprises a main control unit, a crawlingunit, a pose adjusting unit and a pressure adjusting unit. A barrel robot enters a narrow pipeline for inner wall measurement under the control of the main control unit, the pressure of the pipe wallof the system in the pipeline and the states comprising the circumferential deflection of the system and the like are obtained according to the data of a pressure sensor and an inclination angle sensor, then the pose adjusting unit and the pressure adjusting unit are controlled, and the pose stability and continuous crawling of the body barrel robot in the narrow and long pipeline with complex environment can be ensured. The crawling driving system has the characteristics of simple assembly, good stability and wide application, and can be adapted to the pipelines with different pipe diametersand different internal environments.

The invention relates to a production technique of a gelatin, particularly a production technique of a pharmaceutical gelatin, which comprises the following steps: pretreatment technique, degelatinizing, filtering, ion exchange, film concentration, plate drying, sterilization, gumming, drying, pulverization and inspection to obtain the finished product. The invention is characterized in that the pretreatment technique adopts an alkali-hydrogen peroxide-acid composite process and combines with the subsequent techniques to constitute an acid-alkali-hydrogen peroxide three-element process for producing the high-quality gelatin. The jelly strength and viscosity of the first three gelatins extracted in the degelatinizing process are obviously improved as compared with the single acid process or alkali process. The skin material treatment time is greatly shortened as compared with the alkali process. Besides, the alkali treatment is performed at normal temperature, thereby saving the energy and water on the premise of ensuring the high quality of the product.

The invention belongs to the technical field of textile machines, and particularly relates to a chemical fiber textile machine. The chemical fiber textile machine comprises a machine body and machinecovers. Spinning equipment is mounted in a cavity of the machine body. The positions, on the two sides of the machine body, of the top end face of the machine body are fixedly connected with evenly distributed electric rotary shafts. Each electric rotary shaft is fixedly connected with the corresponding machine cover, and the machine covers are designed in arc shapes. The top end face of the machine body is fixedly connected with evenly arranged storage boxes. Gas and liquid carbon dioxide are contained in each storage box. A pressure device is fixedly connected in each storage box. The chemical fiber textile machine is mainly used for solving the problem that at present, when the situation that the interior of the textile machine is on fire happens, due to the fact that upper production lines are connected together, the whole production lines are on fire, and the problems that chemical raw materials are spun by the textile machine, when the textile machine is on fire, the chemical rawmaterials can expand the fire behavior of the textile machine, and therefore a large amount of loss can be caused, and meanwhile workers are possibly injured.