45results about How to "Suitable for large-scale application promotion" patented technology

The invention relates to a control circuit ground fault protection function detecting device and method. The device comprises a sampling module, a signal conditioning module, a processor and a step linear load circuit module, wherein the step linear load module comprises a plurality of power relays and a plurality of power resistors; the resistance values of the power resistors stepwise increase or decrease; the processor is connected to the step linear load module and is configured to control the plurality of power relays of the step linear load module to be successively switched off, therebyobtaining the corresponding ground leakage current when each power relay is switched off, and determining and displaying whether a control circuit ground fault protection function is normal or not according to the change trend characteristic of the ground leakage current. The method has a convenient operation process and is suitable for wide-area application. Various signals are directly acquiredand have high measurement precision and reliability.

The invention provides a liquid crystal aligning agent, a liquid crystal alignment film and a liquid crystal display element. The liquid crystal aligning agent at least comprises one of a polyamide acid solution and a polyimide solution, wherein the polyamide acid solution is obtained by carrying out polymerization reaction of a diamine compound component A and a dianhydride compound component B in a solvent; the polyimide solution is obtained by carrying out dehydration imidization treatment on the polyamide acid solution; the diamine compound component A at least comprises one of diamine compounds as shown in formula 1. The liquid crystal aligning agent disclosed by the invention has relatively good liquid crystal aligning capability, an excellent ghost effect and an effect of easily removing decomposition products after photo-alignment.

The invention discloses a liquid crystal alignment agent, a liquid crystal alignment film, a preparation method of the liquid crystal alignment film and a liquid crystal display element, and belongs to the technical field of liquid crystal display. The liquid crystal alignment agent is prepared from a polymer A obtained through a reaction of a mixture, and a solvent B, wherein the mixture contains a tetracarboxylic acid dianhydride component a and a diamine component b, and the diamine component b at least comprises a diamine compound b-1 shown in the formula I. The invention further provides the liquid crystal alignment film prepared from the liquid crystal alignment agent, the preparation method of the liquid crystal alignment agent and the liquid crystal display element. The liquid crystal alignment agent is formed by polymerizing diamine monomers containing tert-butylphenol fragments and other tetracarboxylic acid dianhydride monomers. When applied to a photo-alignment exposure process, the liquid crystal alignment film can enlarge a working window and has the dual advantages that exposure in an exposure zone is thorough and a non-exposure zone has excellent ultraviolet resistance; thus, the display effect of a liquid crystal displayer can be improved, and the service life of the liquid crystal displayer can be prolonged.

The invention discloses an ecological cattle breeding method, and belongs to the technical field of livestock and poultry breeding. The ecologic cattle breeding method comprises the following steps of 1 cattle farm environment setting, 2 feeding managing, 3 hygiene and epidemic preventing, 4 comprehensive treating of breeding waste, 5 field returning utilizing of organic fertilizer and 6 coarse fodder preparing. According to the method, farm waste contamination can be effectively solved, the farm waste is changed into utilizable beneficial resources such as biogas and the organic fertilizer, agricultural and sideline product waste generated in planting industry and agricultural and sideline product processing industry is returned to a field, and air pollution and environment pollution which are generated by burning and discarding the agricultural and sideline product waste are reduced.

The invention discloses an impact-resistant ceramic insulator and a manufacturing method thereof. The impact-resistant ceramic insulator has impact strength of being not less than 1.5 J / cm<2>, volume resistivity of being not less than 1*10<14>Omega.cm, dielectric strength of being not less than 750 kV / cm, thermal conductivity of being not less than 20 W / m.K, bending strength of being not less than 600 Mpa, Young's modulus of being not less than 450 Gpa and fracture toughness of being not less than 55 Mpa. A one-stage multiple-sintering manner is adopted in every 4-5 mm, so that a finished insulator has a multi-layer buffer and support structure, can withstand multi-angle and high frequency impact energy; a micro-structure is formed on the surface of the insulator, so as to facilitate the use on one hand and also increase the impact resistance on the other hand; and the impact-resistant ceramic insulator provided by the invention has advantages of high economy, high impact resistance, high fracture toughness and high comprehensive mechanical properties.

The invention discloses a fluorine-free durable super-hydrophobic cotton fabric finishing agent. The fluorine-free durable super-hydrophobic cotton fabric finishing agent is prepared by mixing the following components: modified silicon balls, isocyanate, a catalyst and a solvent, wherein the diameter of the modified silicon balls is 10-5000 nm. According to the fluorine-free durable super-hydrophobic cotton fabric finishing agent disclosed by the invention, the chemical bond joining is utilized to effectively improve the fastness between the coating of the cotton fabric finishing agent and the cotton fabric substrate, and fluorinated compound or solvent is not used; based on the hydrophobic modified silicon component and the chemical reaction between isocyanate and hydroxyl, the finished cotton fabric is strong in hydrophobicity and has a certain washing durability, free of toxic and expensive fluorinated compound or solvent, wide in source of raw materials, certainly compatible with other textile finishing auxiliaries, and capable of being applied to the functionalized after-finishing field of the cotton fabric; the cotton fabric finishing method disclosed by the invention is simple, feasible, and suitable for large-scale application and promotion.

The invention discloses a ground growing and vertical frame type combined cultivation method for watermelons, and belongs to the technical field of agricultural planting. The method comprises the following steps: step 1, constructing a greenhouse; step 2, performing soil preparation and fertilization; step 3, raising seedlings; step 4, determining planting spacing, and performing field planting ina suitable period; step 5, constructing a quadripod, performing pruning and vine guiding, performing pollination, and performing watermelon reservation; step 6, performing fertilizer and water management; step 7, preventing and controlling pests and diseases; and step 8, performing timely harvesting. The method provided by the invention utilizes a greenhouse frame to keep warm and take shelter from rain, and avoids the problem that pollination is affected in the flowering and fruit-setting periods of the watermelons because of overcast and rainy low-temperature weather, so that normal pollination and fruit setting can be performed on the watermelons; the ground growing and vertical frame type combined cultivation is used, watermelon vines are guided onto the greenhouse frame in a verticalframe type; after the watermelons set fruits, the watermelons can be put on the ground without the need of hanging the watermelons, so that leaf areas of photosynthesis of the watermelons are increased in a limited space, and growth and expansion after the watermelons set the fruits are facilitated; and meanwhile, the planting density of the watermelons is increased, and the yield of the watermelons, the use ratio of land and economic benefits of watermelon farmers are increased.

The invention discloses a method for preparing an active material calcium zincate of a cathode of a battery by utilizing an airflow mill and belongs to the technical field of an active material of a zinc nickel battery. The method comprises the following steps: 1) uniformly mixing and stirring zinc oxide, calcium hydroxide and deionized water at a weight ratio of (4-6):(4-6):1, and then putting the mixture into a material inlet of the airflow mill and entering into a crushing chamber through an ascending pipe, thereby acquiring a crushed material; 2) putting the crushed material acquired in the step 1) into a classifying chamber for classifying, thereby acquiring classified particles; and 3) returning the classified particles acquired in the step 2), of which the grain size is less than or equal to 1000 meshes, to the crushing chamber for crushing, and discharging the classified particles of which the grain size is more than 1000 meshes from a product outlet, namely, acquiring the active material calcium zincate of the cathode of the battery. The calcium zincate product acquired according to the method is uniform in fineness, regular in particle shape, high in purity and high in material activity. The charging / discharging cycle life can reach above 3000 times.

The invention discloses a water-surrounding embedded small cultivation trough, which belongs to the technical field of horticultural cultivation. It includes a water storage tank, a matrix tank and an agricultural film, the agricultural film includes a first layer of agricultural film and a second layer of agricultural film, the water storage tank is surrounded by at least 4 cement hollow bricks to form a rectangular structure, and the cavity of the cement hollow brick Vertical to the ground of the planting field; the bottom end of the water storage tank is located 15-20cm below the ground of the planting field and is horizontal, and the top of the water storage tank is flush with the ground of the planting field or 2-3cm higher than the ground; the The substrate tank is located inside the water storage tank, and the bottom of the substrate tank is flush with the bottom end of the water storage tank. The small cultivation tank of the invention can save cultivation substrate, reduce substrate replacement cost and workload, and has low construction cost, easy construction and dismantling, no damage to ecological environment, and is suitable for shallow root vegetable crops.

The invention discloses a liquid crystal film material, a liquid crystal alignment agent, a liquid crystal alignment film, a preparation method thereof, and a liquid crystal display element, belonging to the technical field of liquid crystal displays. The liquid crystal film material comprises a tetracarboxylic dianhydride component a and a diamine component b, and the diamine component b includes at least a highly polar diamine compound b-1 represented by . And the liquid crystal alignment agent comprises conductive layer polymer and alignment layer polymer, conductive layer polymer is selected from above-mentioned liquid crystal film material, and described alignment layer polymer is selected from tetracarboxylic dianhydride component a and diamine compound synthetic imine oxidized polyimide. The liquid crystal display element made by the liquid crystal aligning agent of the present invention has the advantage of good afterimage performance, even if it is exposed to light from the backlight for a long time, it also maintains a high voltage retention rate, and the contrast is high, and the light and shade display is clear, thereby increasing The picture display quality of liquid crystal display components can increase the service life of products, and high-quality liquid crystal display components can be produced.

The invention provides a pedestrian detection method. The pedestrian detection method comprises the following steps: acquiring a point cloud signal of a to-be-detected target by using a radar cross-sectional area feature clustering algorithm; carrying out denoising and clustering processing on the point cloud signal by utilizing a DBSCAN density clustering algorithm; generating an initial detection frame; obtaining a radar detection frame mapped by the initial detection frame in the visual coordinate system; training the target detection model by adopting a pedestrian database; generating a visual bounding box by using the target detection model; and performing data fusion on the radar detection frame and the visual boundary frame, and determining whether the to-be-detected target is a pedestrian target. According to the method, the point cloud signals are obtained through the intra-frame radar cross section (RCS) feature clustering algorithm, the point cloud signals are subjected to denoising and clustering fusion through the DBSCAN density clustering algorithm, denoising can be effectively and accurately achieved, effective signals in the point cloud signals can be reserved, the pedestrian target detection accuracy is improved, and the pedestrian target detection efficiency is improved. And meanwhile, the real-time requirement in the pedestrian detection task of automatic driving is also met.

The invention relates to a diamine compound for preparing a liquid crystal aligning agent and application of the diamine compound, and belongs to the technical field of liquid crystal display. The diamine compound contains bisbenzosulfolane conjugated groups and thus has the good electronic transmission capability, and a prepared liquid crystal display element has the antistatic characteristic; and meanwhile, bisbenzosulfolane is of a rigid structure, and thus the prepared liquid crystal display element has the characteristics of high stability and the excellent aligning property. A liquid crystal aligning film and the liquid crystal display element which are prepared through the liquid crystal aligning agent are high in antistatic performance, high in stability and excellent in aligning property, thus the image display quality of the liquid crystal display element is improved, the service life of a product is prolonged, and the product yield is increased, and the diamine compound canbe used for various modes of LCD devices having special requirements for static electricity.

The invention discloses a ground growing and vertical frame type combined cultivation method for watermelons, and belongs to the technical field of agricultural planting. The method comprises the following steps: step 1, constructing a greenhouse; step 2, performing soil preparation and fertilization; step 3, raising seedlings; step 4, determining planting spacing, and performing field planting ina suitable period; step 5, constructing a quadripod, performing pruning and vine guiding, performing pollination, and performing watermelon reservation; step 6, performing fertilizer and water management; step 7, preventing and controlling pests and diseases; and step 8, performing timely harvesting. The method provided by the invention utilizes a greenhouse frame to keep warm and take shelter from rain, and avoids the problem that pollination is affected in the flowering and fruit-setting periods of the watermelons because of overcast and rainy low-temperature weather, so that normal pollination and fruit setting can be performed on the watermelons; the ground growing and vertical frame type combined cultivation is used, watermelon vines are guided onto the greenhouse frame in a verticalframe type; after the watermelons set fruits, the watermelons can be put on the ground without the need of hanging the watermelons, so that leaf areas of photosynthesis of the watermelons are increased in a limited space, and growth and expansion after the watermelons set the fruits are facilitated; and meanwhile, the planting density of the watermelons is increased, and the yield of the watermelons, the use ratio of land and economic benefits of watermelon farmers are increased.