12results about How to "Fair price" patented technology

The present invention provides a biostimulant composition for increasing the folate content of crops, including an aqueous solution of synthetic folic acid and L-potassium glutamate, wherein the molar concentration ratio of the synthetic folic acid to L-potassium glutamate is 1:3-5, and the solvent is an aqueous solution of potassium carbonate. The present invention also provides a preparation and use method of the biostimulant composition. Synthetic folic acid is used as the main body of plant biostimulants, and L-glutamic acid, one of the synthetic precursors of natural folic acid, is added to stimulate the main body of crops such as fruits and vegetables to increase the synthesis and storage of natural folic acid, thereby increasing the content of folic acid in crops and improving the quality of crops.

The application discloses an electrochemical granulation electrode deintercalation lithium extraction membrane stack electrolysis equipment, which comprises an electrolysis tank and an electrode assembly; the electrolysis tank comprises a first side plate, a piece of side plate rubber pad, a plurality of tank bodies, another piece of side plate rubber pad, a second side plate and a first tank body rubber pad, an anion membrane and a second tank body rubber pad arranged in sequence between two adjacent tank bodies; the tank bodies are divided into anode tanks and cathode tanks, the anode tanks and the cathode tanks are arranged alternately in an X direction from the first side plate to the second side plate, and the number of the anode tanks is equal to that of the cathode tanks; and an elastic porous pad is laid on the inner cavity bottom wall of the tank body. The electrolysis equipment can realize efficient extraction of lithium resources in salt lake brine, has the advantages of high lithium recovery rate and current efficiency, and is convenient to install, maintain and observe and monitor in the lithium extraction process.

The present invention discloses a heat pump system and method for regulating and utilizing waste heat from urban domestic waste landfills. The system includes: a circulation loop on the end-user side, a horizontal buried pipe circulation loop on the upper layer of the landfill, a vertical buried pipe circulation loop on the ground source side, a horizontal buried pipe circulation loop in the middle and lower layers of the landfill, and a heat supplement circulation loop. The present invention uses technical means to regulate the decomposition of organic matter in domestic waste, which has a very positive significance in terms of recycling and utilizing waste heat, methane and other available resources generated by the decomposition of organic matter, alleviating or solving the problem of winter efficiency attenuation of traditional ground source heat pumps, accelerating the stabilization of landfill settlement, and promoting the reclamation and reuse of land in the site.

This invention discloses a method for rapid quantitative analysis of methamphetamine based on portable near-infrared spectroscopy and PLS modeling, characterized by: (1) collecting near-infrared diffuse reflectance spectra of methamphetamine crystals and tablets using a portable near-infrared analyzer, and preprocessing the spectral data using the S-G method; (2) performing data analysis and modeling based on the PLS method to obtain a PLS regression model; (3) detecting the sample to be tested: collecting the near-infrared diffuse reflectance spectra of the sample to be tested, and then obtaining the methamphetamine content in the sample to be tested according to the model in step (2).

This invention relates to the field of metal surface treatment technology, and more particularly to an aluminum alloy with a surface loaded with bio-based antibacterial components and its preparation method. The aluminum alloy is prepared by the following steps: anodizing the treated aluminum alloy to obtain an aluminum alloy with a nanotube pore structure; immersing the obtained nanotube pore structure anodic aluminum layer in a silane coupling agent solution for activation treatment to obtain a surface-activated aluminum alloy; immersing the surface-activated aluminum alloy in an epoxy resin solution containing antibacterial components and allowing it to stand for 10–12 hours, then removing the aluminum alloy and curing it at 70–75°C for 2–3 hours to obtain the aluminum alloy. The aluminum alloy prepared by this invention simultaneously loads two antibacterial components, palmatine and magnolol, onto the anodic oxide film layer, which synergistically produce a better inhibitory effect on fungi and bacteria.

The present invention belongs to the technical field of polymer films, and specifically relates to a biodegradable wrapping film and a preparation method thereof. The biodegradable wrapping film comprises the following components: 70-85 parts of PBAT, 10-30 parts of polylactic acid, 5-10 parts of polypropylene carbonate, 10-15 parts of toughening agent, 5-15 parts of plasticizer, 1-2 parts of light stabilizer, and 0.1-0.3 parts of antioxidant; wherein the toughening agent is prepared by reacting phenylalanine, tyrosine and gum arabic. The preparation method is to prepare the toughening agent in advance; stir PBAT, polylactic acid, polypropylene carbonate, plasticizer and antioxidant once, continue to add toughening agent and light stabilizer for secondary stirring, and then prepare the biodegradable wrapping film by extrusion granulation and cast film. The present invention improves the stretchability and tensile strength of the biodegradable wrapping film based on PBAT by adding a homemade toughening agent, and at the same time, by granulation and one-time cast extrusion film making, the preparation method is simple to operate, low cost, and suitable for large-scale production.

The application discloses a kind of dynamic wear monitoring and early warning device and method of coal winning machine support guiding system, which uses several sensors (dynamic wear monitoring device) arranged dispersedly to dynamically monitor the wear condition of key parts of coal winning machine support guiding system, makes full use of the different position structures of guiding shoe and smooth shoe, creates reasonable space by segmentation, optimizes sensor configuration point, and implements effective protection.In addition, the application also uses dynamic wear early warning device to centrally control the wear condition of key parts of coal winning machine support guiding system, which is beneficial to gather the four-point support of coal winning machine support guiding system, the different optimized sensor configuration points of structure dispersed guiding shoe and smooth shoe in the most shortcut, economical and reasonable way, and implement centralized control of each sensor configuration point, which is convenient to improve control accuracy, reduce measurement error and reduce cost.

The invention relates to a TPU / PVC (thermoplastic polyurethane / polyvinyl chloride) modified film as well as a preparation method and application thereof. The TPU / PVC modified film comprises the following components in parts by mass: 50-75 parts of polyether type TPU; 25 to 50 parts by mass of PVC resin; 20-35 parts by mass of a plasticizer; 1-2 parts by mass of a composite calcium-zinc stabilizer; 0.4 to 0.6 part by mass of an anti-ultraviolet light absorber; 0.2 to 0.5 part by mass of a composite antioxidant; 0-0.2 part by mass of a lubricant; in the preparation process, the PVC and the TPU are fused; a structure with TPU as a continuous phase and plasticized PVC as a dispersed phase is formed. The TPU / PVC modified space composite material is of a sandwich structure and comprises a surface layer, a bottom layer and a middle layer, wherein the surface layer and the bottom layer are TPU / PVC modified films, and the middle layer is space mesh cloth. Compared with the prior art, the TPU / PVC modified space composite material has the advantages of light smell, good flexibility, low temperature resistance, weather resistance and hydrolysis resistance.

The utility model relates to the technical field of clinical assistive devices, in particular to an adjusting mechanism and a detachable'double-C 'body position pad, and the adjusting mechanism comprises a thoracico-abdominal pad, an upper supporting piece and a lower supporting piece; the connecting assembly comprises a limiting block arranged on the upper supporting piece, a cavity formed in the top of the lower supporting piece, a baffle arranged in the cavity and a connecting piece arranged on the baffle, and by arranging the adjusting assembly, when patients with different figures use the device, a rotating disc is rotated to enable a moving block to move towards the two sides, so that the moving block moves towards the two sides; according to the thoracico-abdominal pad, the lower supporting piece is arranged on the upper portion of the thoracico-abdominal pad, the inclined plate on the top is extruded while moving, the upper supporting piece ascends, then the thoracico-abdominal pad is adjusted to the proper height for use according to the figure of a patient, the friction force between the lower supporting piece and a contact object can be increased through the anti-skid assembly, and the lower supporting piece cannot deviate when the patient turns over.

The present invention belongs to the field of greenhouse heating technology, specifically a greenhouse enclosure curtain wall with active heat storage and its greenhouse back wall and wall material. The curtain wall system of the present invention is composed of an XPS-PVC greenhouse back wall, a black film, an upper water pipe, a return pipe, and a water tank equipped with a water pump. Water is injected from the upper water pipe and flows between the wall and the black film, and is guided back to the water tank equipped with a water pump by the return pipe. The XPS-PVC composite wall material of the present invention uses PVC as a finishing layer, and flame-retardant XPS is sandwiched in the middle as an insulation layer. The XPS-PVC greenhouse back wall of the present invention is borne by a greenhouse steel frame to bear the greenhouse load, and multiple pieces of XPS-PVC composite wall materials are spliced ​​into wall panels and fixed on the steel frame of the north wall of the greenhouse. The curtain wall system of the present invention can complete the process of active heat storage and release by directly using the wall, without the need to set up a separate heat collection system, occupying less space, low cost, and easy to promote.

The invention relates to an environment-friendly aluminum alloy cleaning agent, which comprises the following components in percentage by weight: 3.0 to 8.0 percent of biodegradable chelating agent, 8 to 16 percent of carbonate or bicarbonate, 2 to 6 percent of organic acid salt, 0.1 to 3.0 percent of anionic surfactant and the balance of water, the pH value of the cleaning agent is 7.5 to 9.5. The invention further claims to protect an aluminum alloy cleaning method using the environment-friendly aluminum alloy cleaning agent. The aluminum alloy cleaning method comprises the following steps: heating the cleaning agent; immersing the aluminum alloy product into the cleaning agent; keeping contact; and washing with clear water and drying. The aluminum alloy cleaning waste liquid treatment method comprises the steps that waste liquid is collected; adding an acidic regulator to regulate the pH value to 6.0-7.0; adding a flocculating agent and stirring; standing and precipitating; and separating supernate and sediment. The formula is flexible, and the waste liquid can be discharged after reaching the standard after being simply treated; and the device is particularly suitable for industrial application and small-batch cleaning operation of an aluminum alloy profile extrusion production line. The cleaning agent is high in cleaning efficiency, free of corrosion to aluminum alloy base materials and excellent in environmental protection performance.

The invention relates to the technical field of secondary batteries, and provides a phenol organic matter additive electrolyte for an aqueous zinc-manganese battery, which is convenient to produce, suitable in price and non-toxic, and the electrolyte is composed of a mixed aqueous solution of manganese acetate, zinc acetate, potassium chloride and a phenol organic matter, wherein the phenol organic matter additive serves as a redox medium to participate in the electrochemical reaction process of the positive electrode, dissolution of manganese dioxide in the discharging process is promoted, high positive electrode reaction reversibility is achieved, and the long cycle performance of the water-based zinc-manganese battery is improved; the invention also provides a soft package battery device structure design based on a manganese dioxide dissolution and deposition mechanism, and the energy storage application process of the aqueous zinc-manganese battery based on the manganese dioxide dissolution and deposition mechanism is promoted.