38results about How to "Suitable for large-scale commercial applications" patented technology

The invention discloses a compound preservative and a preparation method for extending the storing time of loquat fruit, which comprises the following steps: 1) adding 9-15g nanometer calcium carbonate into 1L water with a temperature of 70-90 DEG C, mixing evenly and heat insulating, and then adding in 1.5-4.5g sodium stearate, water bath heat treating for 20-40min for modification; 2) heating and dissolving 300-450g chitosan in 29L water, and then mixing evenly with the solution in step 1). The compound preservative of the invention can effectively inhibit the browning and spoilage of loquat fruit, maintain the good fruit rate of loquat fruit, improve the editable quality and commercial value of loquat fruit and extend the storage period. The preparation method of the invention is characterized by simplicity, high efficiency and utility, which is suitable for large scale commercial application and has broad application prospect.

An antistaling method for the picked red bayberry fruits includes such steps as directly putting the red bayberry fruits in sealed container, fumigating by alcohol vapor at 0-20 deg.C for 6-8 hr, and storing at 0-20 deg.C.

The invention relates to the technical field of battery materials, and particularly relates to a preparation method and application of hard carbon. The preparation method provided by the invention comprises the steps of carrying out salt leaching on biomass waste powder to obtain salt-leached biomass waste powder; and sequentially carrying out first carbonization, ball milling and second carbonization on the salt-leached biomass waste powder to obtain the hard carbon. According to the method, firstly, the biomass waste powder is subjected to salt leaching to enable the biomass waste powder tocarry salt ions, and the salt ions can change the microstructure of carbon in the subsequent second carbonization process, so that the performance of hard carbon is influenced; the two-step carbonization process is used for ensuring that a primary carbon structure can be formed and tar substances in the biomass can be removed through first carbonization, so that the relative controllability of thesize of biomass waste powder in the subsequent ball milling process is facilitated, and the formation of a more stable carbon structure can be ensured through second carbonization.

The invention discloses a convolutional neural network target detection and recognition method based on polarization scattering characteristics. The method comprises the following steps: carrying outirradiation and signal polarization on a target; an echo fed back from the target is received by means of dechirp, wherein the received echo is a target polarized echo; the target polarized echo is sampled, each frame of sampled radar echo data include echo data of a VV polarization channel, a VH polarization channel, an HH polarization channel, and an HV polarization channel; and the four-channelecho data are inputted by a convolutional neural network and thus the dangerous article on the target is detected and identified based on the target polarization characteristics. According to the invention, no imaging processing is required; the detection processing process is simple; the detection speed is fast; and the detection frame rate can reach 10Hz. With the convolutional neural network identification method, the fusion mode of the four-channel echo data with different polarization characteristics is found out, so that the article recognition rate is increased; and thus the certain detection and identification effect for dangerous articles under the body background is realized.

The invention provides a negative plate and a lithium ion battery. A negative active layer of the negative plate provided by the invention comprises a silicon-based material and graphite particles; the silicon-based material comprises a functional silicon-based material, at least three graphite particles are arranged around the functional silicon-based material, and the distance between the graphite particles and the functional silicon-based material is 0.5-2 microns. The negative plate provided by the invention has lower expansion performance and good cycle performance under the condition of high energy density, the lithium ion battery provided by the invention not only has high energy density, but also has good cycle performance and safety performance, and is suitable for large-scale commercial application, and when the lithium ion battery is used for electronic equipment, the performance of the lithium ion battery is greatly improved. The service life of the electronic equipment can be prolonged.

The invention relates to a preparation method of a transition metal-nitrogen-carbon nanotube co-doped activated carbon oxygen reduction catalyst, and belongs to the field of catalyst preparation. Themethod comprises the following steps: pretreating an activated carbon carrier, growing a metal organic framework compound on the activated carbon in situ, and carrying out high-temperature pyrolysis carbonization. The method for in-situ growth of the metal organic framework compound on the activated carbon comprises the following steps: dissolving transition metal salt and zincate in a solvent toform a solution A; dissolving a nitrogen-containing organic ligand in a solvent to form a solution B; adding the pretreated activated carbon into the solution B to form a mixed solution; adding the solution A into the mixed solution for reaction, separating precipitates after reaction, and performing washing and drying. The catalyst has rich pyridine nitrogen, graphite nitrogen and metal nitrogencatalytic active sites, highly dispersed transition metal nanoparticles and carbon nanotubes, a developed three-dimensional pore structure and a high graphitization degree, so that the catalyst has relatively high oxygen reduction catalytic performance and can be widely applied to air electrode oxygen catalytic reduction of various fuel cells.

The invention discloses a preparation method of mullite ceramic powder. The method comprises the following steps: wrapping a SiO2 nano layer composite microstructure on the surface of Al2O3 powder to prepare mullite powder, wherein the average grain size of initial powder Al2O3 powder is 0.1-10 microns; by taking TEOS with purity being over 99% as a raw material of SiO2, wrapping SiO2 on the surface of Al2O3 powder at 500-600 DEG C; and finally, sintering at 1250-1350 DEG C. The mullite powder prepared by the method provided by the invention has purity being over 97%, and has uniform grain size and the components. According to the user demand, the mullite powder with different grain sizes is produced and synthesized with low cost by selecting different Al2O3 powder. The method has the advantages of good repeatability and the like, and is simple to operate and easy to industrialize, and the prepared mullite powder structure is high in heat stability, low in cost, uniform in grain size distribution and suitable for commercial application on a large scale.

The invention discloses a polymer electrolyte capable of working in a wide temperature range, a preparation method of the polymer electrolyte and application of the polymer electrolyte in a solid-state lithium (sodium) secondary battery. The polymer electrolyte is prepared from a precursor solution containing a polymeric monomer, an initiator and an electrolyte salt on the surface of a base material in an in-situ polymerization manner, and is of a hyperbranched structure without a main chain and with multiple branched chains. The polymer electrolyte has the advantages of high ionic conductivity and transference number, wide electrochemical window, good mechanical strength and the like, and can stably work in a temperature range of -40-110 DEG C. Meanwhile, the preparation method of the polymer electrolyte is simple, mild in condition, low in preparation cost, easily available in raw materials and suitable for large-scale production. The polymer electrolyte disclosed by the invention isused for constructing a solid-state lithium (sodium) secondary battery, so that the working temperature of the battery can be effectively expanded, and the safety of the battery under extreme workingconditions is improved.

The invention relates to a vapor deposition device which comprises a reaction cavity (1), a reactant injection assembly, a vacuum pressure reduction assembly and a temperature control assembly. The reactant injection assembly and the vacuum pressure reduction assembly communicate with the reaction cavity (1). A substrate (2) is placed into the reaction cavity (1), after the reaction cavity (1) is vacuumized through the vacuum pressure reduction assembly, the vacuum pressure reduction assembly is closed, the reactant injection assembly is used for injecting a reactant into the reaction cavity (1), and the temperature control assembly controls temperature in the reaction cavity (1), so that the reactant is vaporized and deposited on the surface of the substrate (2). Compared with the prior art, the vapor deposition device has the beneficial effects of being convenient to operate, simple in structure, low in cost, suitable for large-scale commercialized application and the like, and the vapor deposition process is controllable.

The invention relates to preparation and application of an electrocatalytic material for electrocatalytic oxygen evolution reaction (water oxidation reaction). The catalytic material is mainly a nickel-iron-based catalytic material (NiFemm (OOH) 1 + m), and the material is obtained by performing ion exchange on a synthesized Prussian blue analogue precursor under an alkaline condition and then further activating. The structure of the material is nickel-iron oxyhydroxide, and the material is applied to an electrolytic water reaction anode electro-catalysis oxygen evolution reaction. According to the method, the overpotential of the anode oxygen evolution reaction in the electrolyzed water is greatly reduced (the overpotential is only 263 mV when the current density reaches 10 mAcm <-2 >, and the Tafel slope is only 35 mV dec-1), the catalyst performance is remarkably improved, and the method is obviously superior to a commercial noble metal RuO2 catalyst and is better than a NiFe-based hydroxide catalyst generated by a conventional means. The cost of hydrogen production through water electrolysis can be effectively reduced, and the requirements of commercial production are completely met.

The invention relates to a zinc oxide-carbon core-shell nanoparticle, which is a product obtained by adding at least one amino and / or carboxyl substituted benzene derivative or pyridine derivative, or silane micromolecules capable of being subjected to coupling reaction with zinc oxide as a carbon source material into a nano zinc oxide methanol solution and carrying out solvothermal reaction at 150-200 DEG C. The zinc oxide and carbon core-shell nanoparticles are coated with the nano-carbon material to inhibit surface defects of zinc oxide, are applied to an electron transport layer of an organic solar cell, can inhibit photocatalytic reaction between zinc oxide and a non-fullerene material, reduce oxygen sites adsorbed by zinc oxide, reduce the occurrence probability of a'light bath 'phenomenon, and improve the photoelectric conversion efficiency of the organic solar cell. And the air and ultraviolet stability of the device is improved.

The invention discloses a storing and fresh-keeping method for loquat fruits. The method comprises the following steps of pre-cooling the loquat fruits; performing heat treatment on the loquat fruits in a baking oven at 48 DGE C for 3 hours; after cooling, soaking the fruits in the alginate solution which contains 100 mu mol / L salicylic acid (SA) for 5 minutes; air-drying and soaking the loquat fruits in the plant extract solution, wherein every 100g of fruits are soaked in 100-200g of the plant extract solution for 8-12 minutes; air-drying and packaging with 0.025 mm of polyethylene plastic bags and storing the fruits respectively at the temperature of 8 DGE C and 4 DGE C for 3 days, then storing at temperature of 1 DGE C for 60 days, and finally storing at the temperature of 20 DGE C for 3 days as the shelf life. According to the invention, cold damage to the loquat fruits can be effectively prevented, the rotting rate is controlled and the storage period is prolonged. The fresh-keeping method for the loquat fruits is easy to use, low in concentration, long in effect period, and prominent in fresh-keeping effect, and the medicine used are non-toxic and harmless to the environment, which is suitable for large-scale commercial application and has the widespread application prospect.

The present invention discloses a storage and preservation method of green plum fruits, sodium nitroprusside is selected as a storage agent, and the storage and preservation method comprises the following steps: (1) fruits with uniform size, medium to almost mature and no mechanical damages are selected; (2) the green plum fruits are treated with the sodium nitroprusside solution with a processing time of 10-20 minutes and at a treating temperature of 20 DEG C; (3) after the fruit surface moisture is air-dried, the fruits are stored at 20 DEG C with a relative humidity of 92-98%, and the concentration of the sodium nitroprusside solution is 25, 50 or 100 mu mol / L and preferably 50 mu mol / L. The storage and preservation method can effectively slow down the ripening and senescence of the green plum fruits during storage at 20 DEG C, reduce the symptoms of aging and maintain good fruit quality and product marketability, has light pollution to the environment, a large number of processing, is simple, has outstanding preservation effects, is suitable for large-scale commercial applications, and has broad application prospects.

The invention relates to an air electrode used in an aluminum-air battery and a preparation method of the air electrode and belongs to the technical field of batteries. The air electrode can be used in the aluminum-air battery as a positive electrode and is prepared by laminating three layers, namely, a waterproof and gas-permeable layer, a catalyst layer and a collector layer, wherein the catalyst layer comprises the following components in percentage by weight: 30-90% of an electrode catalytic material, 5-30% of a conductive material and 5-40% of a binder material, wherein the total weight of the electrode catalytic material, the conductive material and the binder material is 100% by weight. By controlling the crystal form, doping metals, compounding carbon and the like, the obtained modified manganese dioxide material has catalytic efficiency comparable to that of a noble metal catalyst and can provide higher power for the aluminum-air battery. The preparation method of the catalytic electrode provided by the invention has the characteristics that the method is simple, efficient and clean and environmental pollution cannot be caused.

The invention discloses a multifunctional automatic cooking system and an automatic cooking method. A guide rail I and a sliding block I are arranged at the top end of a support of the cooking system, the bottom of a moving frame I is connected with the sliding block I, a linear driving unit I is connected with the support and the moving frame I, a linear driving unit IV is arranged on the lower portion of the guide rail I, a body is connected with the moving frame I, and the bottom end of a chuck is connected with the moving end of a linear driving unit III. The robotic arm system comprises a multi-axis mechanical arm arranged on the side of the pulsation cooking device and an electric claw assembly arranged at the front end of the multi-axis mechanical arm; a discharging port of a batching head of the liquid batching system points to the upper part of the preset cooking bowl at the front end; the delivery device base is arranged at the tail end of the pulsation cooking device, the rotating unit body is arranged on the base, one end of the rotating arm is connected with the rotating unit rotating shaft, and the other end of the rotating arm is connected with the taking claw; the control ends of the driving units, the multi-axis mechanical arm, the electric claw assembly and the batching head are electrically connected with the control system. The multifunctional automatic cooking system has the characteristics of high automation degree, flexibility, safety and sanitation.

The invention discloses a wireless digital intelligent focusing, dimming and color adjusting LED lamp, and belongs to the field of LED lamps. The wireless digital intelligent focusing, dimming and color adjusting LED lamp comprises: an outer cylinder; a cylinder body connected to the inner wall of the outer cylinder in a sliding mode, wherein a white light control module and a warm light control module are arranged in the cylinder body; an LED lens which is connected to the inner wall of the outer cylinder; a central control unit which is connected to the inner wall of the outer cylinder; anda 2.4 G receiving module and a light spot size adjusting module, wherein the central control unit is in signal connection with the 2.4 G receiving module, and the light spot size adjusting module, thewhite light control module and the warm light control module are all electrically connected with the central control unit. The wireless digital intelligent focusing, dimming and color adjusting LED lamp can intelligently control the focusing effect, does not need manual adjustment, reduces the labor cost and the risk of high-altitude operation, is suitable for large-scale commercial application,can achieve the free switching of light modulation, focusing and color modulation, can achieve the random control, employs digital adjustment, and has a memory function.

The invention discloses a preparation method of a titanium dioxide and prussian blue ordered assembly state mesocrystal nano material. The preparation method comprises the following steps: preparing anovel flower-like mesocrystal nano material consisting of nanowire arrays by utilizing a hydrothermal method; preparing the monodisperse high-purity flower-like titanium dioxide and prussian blue composite material (TiO2-PB) by taking potassium ferrocyanide and titanium sulfate as raw materials, PVP as a stabilizer and diluted hydrochloric acid as a solvent and reacting at a specific temperature.The preparation method is simple in preparation process, reliable in design principle, low in production cost, short in period and environment-friendly in application; the prepared composite materialis good in monodispersity, high in purity and uniform in morphology, and has a wide application prospect in various aspects. A solid film constructed by utilizing the composite material can be conveniently applied to the surface of conventional paper so as to produce inkless printing rewritable paper with the same hand feeling and appearance. The composite material and the solid film are simple and convenient to produce, and the light printing mode is simple, environment-friendly, safe and efficient.

The invention discloses an information encryption self-driven decryption integrated optical-thermal device and a preparation method thereof. The information encryption self-driven decryption integrated optical-thermal device comprises a light source excitation system, a high-temperature color-changing light-emitting system and a thin film heating system, and the high-temperature color-changing light-emitting system serves as an information encryption / anti-counterfeiting display layer; the film heating system is connected with the high-temperature color-changing light-emitting system; the light source excitation system is connected with the high-temperature color-changing light-emitting system and used for exciting the high-temperature color-changing light-emitting system to emit light in different modes. And the film heating system is used for generating joule heat to provide a variable-temperature environment for the high-temperature color-changing light-emitting system. The information encryption self-driven decryption integrated optical-thermal device is small in size, flexible, non-toxic, simple to prepare, low in cost and good in mechanical property.

The invention discloses a storage and preservation method for loquat fruits, which comprises the following steps: (1) selecting loquat fruits with uniform size, uniform maturity and no mechanical injury, putting into a polyethylene plastic bag, and carrying out heat treatment in a 48 DEG C drying oven for 3 hours; (2) cooling, and immersing the loquat fruits in a 1% chitosan solution containing 100 mu mol / L vitamin E for 5 minutes; immersing every 100g of loquat fruits in 100-200g of plant extract water solution for 8-12 minutes; and (3) naturally drying at room temperature, storing the fruits at 8 DEG C for 3 days, storing at 4 DEG C for 3 days, and storing at 1 DEG C. The combined storage and preservation method is reasonable in design; and compared with the method of simply storing loquat fruits at low temperature, the method disclosed by the invention can effectively avoid cold injury of the loquat fruits, control the rotting rate of the loquat fruits after collection, and prolong the storage period.

The invention discloses a convolutional neural network target detection and recognition method based on polarization scattering characteristics. The method comprises the following steps: carrying outirradiation and signal polarization on a target; an echo fed back from the target is received by means of dechirp, wherein the received echo is a target polarized echo; the target polarized echo is sampled, each frame of sampled radar echo data include echo data of a VV polarization channel, a VH polarization channel, an HH polarization channel, and an HV polarization channel; and the four-channelecho data are inputted by a convolutional neural network and thus the dangerous article on the target is detected and identified based on the target polarization characteristics. According to the invention, no imaging processing is required; the detection processing process is simple; the detection speed is fast; and the detection frame rate can reach 10Hz. With the convolutional neural network identification method, the fusion mode of the four-channel echo data with different polarization characteristics is found out, so that the article recognition rate is increased; and thus the certain detection and identification effect for dangerous articles under the body background is realized.

The invention discloses a wireless digital intelligent focusing, dimming, color matching LED lamp, which belongs to the field of LED lamps. A wireless digital intelligent focusing, dimming, and coloring LED lamp, including an outer cylinder, and also includes: a cylinder body, which is slidably connected to the inner wall of the outer cylinder, and a white light control module and a warm color light control module are arranged in the cylinder; an LED lens , connected to the inner wall of the outer cylinder; the central control unit, connected to the inner wall of the outer cylinder; 2.4G receiving module and spot size adjustment module, the central control unit is connected to the 2.4G receiving module signal, the spot size adjustment module, white light control Both the module and the warm-color lighting control module are electrically connected to the central control unit; the present invention can intelligently control the effect of focusing without manual adjustment, which reduces labor costs and the risk of high-altitude operations, and is suitable for large-scale commercial applications, dimming, Focusing and color adjustment can be switched freely, can be controlled at will, adopt digital adjustment, and have memory function.