286results about How to "Materials are cheap and readily available" patented technology

The invention relates to an application of a porous carbon material with a grading pore structure in a lithium-air cell anode, and is characterized in that the carbon material has mutually communicated grading pore structure distribution which has a mesoporous structure for depositing the discharge products and a macroporous structure suitable for transmission of oxygen and an electrolyte. When the carbon material is taken as a material of the lithium-air cell anode, the space utilization rate of carbon material can be increased at maximum limitation during a charge and discharge process, specific discharge capacity, voltage platform and multiplying power discharge capability of the cell can be effectively increased, so that the energy density and power density of the lithium-air cell can be increased. The porous carbon material has the advantages that the preparation technology is simple, the material source is wide, the grading pore carbon material pore structure enables regulation and control, the regulation and control modes are various, and the doping of metal/metal oxide can be easily and simultaneously realized.

The invention discloses an arterial highway and local highway access traffic dispersion system. Sensors are arranged between the outermost lane of an arterial highway and the two sides of an arterial highway access. An arterial highway guide rod device is obliquely buried under the ground of the arterial highway access. A bicycle way a certain distance away from the arterial highway access is provided with a sensor used for detecting pedestrians or vehicles and a bicycle way guide rod device. The bicycle way guide rod device is arranged in front of the sensor. A sensor and a local highway guide rod device are disposed on a right turning lane of the local highway a certain distance away from the arterial highway access. The local highway guide rod device is disposed in front of the sensor. Each guide rod device comprises a guide rod, a lifting column, a box and a drive control device, wherein the guide rod is installed on the lifting column, and the lifting column is driven by the drive control device to move up and down. Normal traffic order of the access can be guaranteed, the occurrence rate of traffic accidents is reduced, and traffic efficiency of main highways is guaranteed.

The invention relates to a nonlinear rail type collaborative tuning damper which comprises an external cavity unit, a spring system, a viscous liquid, an internal cavity unit, a cushioning material and a particle group. Two groove rails which are arranged in the length direction of the cavity are arranged at the bottom of the damper external cavity unit, the internal cavity unit can slide back and forth along the groove rails and is connected with the inner wall of the external cavity through the spring system, the portion between the external cavity unit and the internal cavity unit is filled with the viscous liquid, the inner wall and bottom of the internal cavity are covered with the cushioning material, and the particle group is composed of circular particles with different sizes. Shaking of the viscous liquid enables the internal cavity to move back and forth to consume energy, and friction and collision of the liquid and the container wall provides the damping effect; the structure self-vibration frequency is tuned by the spring system, and the energy is consumed by means of the collision and friction between the particles or between the particles and the cavity wall. According to the nonlinear rail type collaborative tuning damper, the advantages of various dampers are combined, the vibration damping frequency band is wide, the effect is good, and the nonlinear rail type collaborative tuning damper has wide applicability in the field of civil engineering structure vibration control.

The invention relates to multi-level structure alpha type nickel hydroxide prepared by microwave auxiliary and a method thereof. Soluble nickel salt as a raw material, urea as precipitator and mixed solution of ultrapure water and ethanol as solvent are stirred and mixed at room temperature to form uniform solution; and the solution is transferred to a microwave reaction quartz flask, and a microwave device is set to react in a temperature range of between 100 and 180 DEG C. After the reaction is finished, products are separated, washed and dried to obtain alpha type nickel hydroxide nanopowder. The shape of the product can be controlled through changing the microwave reaction temperature, time, and type of the nickel salt raw material, volume ratio of the ultrapure water and the ethanol, and other preparation conditions. The method has the characteristics of low cost of the raw material, simple process, convenient operation, quick and high efficient reaction, controllable shape and the like.

The invention relates to a method for selective enrichment and identification of N-glycosylation sites in a biological sample based on a reductive amination reaction of amino and aldehyde groups and application of the method to proteomic analysis of N-glycoprotein. The method comprises the following steps: taking a biological sample containing glycoprotein, carrying out enzymatic hydrolysis by using trypsin and then blocking the terminated amino group and side-chain amino group of a peptide fragment by using formaldehyde; then oxidizing a sugar chain on glycopeptide by using a sodium periodate solution so as to produce an aldehyde group; then enriching oxidized glycopeptide with amino microspheres and carrying out treatment with peptide glycosidase PNGase F; and carrying out mass spectrometry on released N-glycopeptide so as to obtain proteome information of N-glycoprotein in the sample. The method can be used for proteomic analysis of glycosylation and can acquire identification results of corresponding glycoprotein, glycopeptide and glycosylation sites at the same time. The method is simple and highly efficient and has high throughput in identification of N-glycosylation sites on glycoprotein.

The invention relates to a naphtha denitrification adsorbent which is stable in absorption performance, large in absorption capacity, high in absorption efficiency, high in absorption selectively and renewable and a preparation method thereof. The adsorbent comprises a porous absorption carrier and acidic impregnation liquid loaded on the carrier. The absorbent can deeply remove organic nitride from naphtha by liquid-phase absorption and gas-phase absorption; the nitrogen content in the refined naphtha is less than or equal to 2.5ppm; and with the obvious reduction in the nitrogen content in the naphtha, the influences on the catalyst activity and equipment service life of downstream devices are reduced greatly, and the long-term operation and safe production of the devices are guaranteed.

The invention discloses a water-gas interface room temperature gas PVC (polyvinyl chloride) sampling box, and relates to a sampling device of gas samples in the field of environmental science, aiming to solve the problems that an existing water-gas interface greenhouse gas sampling device cannot meet the gas sampling requirement by different water depths and guarantee the stability of the sampling box, and cannot meet the requirement for monitoring the water-gas interface greenhouse gases. The water-gas interface room temperature gas PVC sampling box disclosed by the invention comprises a box body, a temperature preservation layer, a temperature sensor, a gas sampling pipe, a three-way valve, a battery, a lead, a fan and a floating device. The water-gas interface room temperature gas PVC sampling box can adjust the floating device up and down according to the water depths and the wind power, can change the depth of the sampling box in a water body so as to be adaptive to different water depth requirements, and guarantee the stability in high wind power, and can be used for collecting water-gas interface greenhouse gases.

The invention discloses a Nafion/orthophosphoric loaded covalent organic framework material composite film; the composite film is 70-100 micrometer in thickness and formed by covalent organic framework material loaded with Nafion/orthophosphoric acid, wherein the mass ratio of the orthophosphoric loaded covalent organic framework material to the Nafion is 0.05-0.2: 1. The preparation process includes steps of compounding covalent organic framework material; loading an orthophosphoric molecule to a hole duct of the covalent organic framework material by a vacuum assistant method, and obtaining the orthophosphoric loaded covalent organic framework material; commixing the orthophosphoric loaded covalent organic framework material with Nafion solution and obtaining a film casting fluid; preparing the composite film by a tape casting method. The materials for the composite film are low in price and easy to obtain, and the preparation process is simple and controllable; the prepared Nafion/orthophosphoric loaded covalent organic framework material composite film is applied to a proton exchange film fuel battery, and has high proton conductivity under the saturated humidity and low humidity.

The invention provides a special nylon 66 composition for an automobile engine hood. The composition contains the following components by weight percent: 18-79% of nylon 66, 5-20% of copolymer nylon or long-chain nylon, 15-35% of alkali-free short glass fiber, 0-20% of mineral filler and 1.0-7% of auxiliaries, wherein the copolymer nylon is a polymer which is prepared through reaction, dehydration and polymerization of two or more monomer units, contains an amide group and is selected from one of or the mixture of more of a nylon6/66 copolymer, a nylon 6/12 copolymer and a nylon 6/10 copolymer; and the long-chain nylon is a polymer which is prepared through polymerization of monomers with carbon contents greater than or equal to 10 in polymer monomer units and other monomer units, contains an amide group and is selected from one of or the mixture of more of a nylon 11, a nylon 12 and a nylon 1010. The invention provides the special nylon 66 composition for the automobile engine hood and a preparation method thereof. The composition has the beneficial effects that the composition has quite high impact resistance and super strength and excellent chemical properties and dimensional stability; and products have smooth and clean surfaces and are cheap.

The invention relates to a slow-release rooting agent and a preparation method thereof. The slow-release rooting agent is a pasty colloid obtained by mixing a slow-release agent, a reinforcing agent, a rooting agent and a solvent. The slow-release rooting agent comprises effective compositions in parts by weight: 1000 parts of bentonite, 24-36 parts of aluminum sulfate, 1.8-3.6 parts of a green plant growth regulating agent, 1.8-3.6 parts of indole-3-butyric acid potassium, and the balance purified water. The compositions interact each other for preparing the gray pasty colloid which has protrude rooting promotion effect; also the characteristics and the performances of the compositions are fully utilized, and the proportion and the usage amount are reasonable; the slow-releasing rooting agent is closely combined with production practice, the usage method is simple and practicable, the raw materials are cheap and easily purchased, the slow-release rooting agent is wide in application scope and extremely strong in practicability, and has relatively high popularization utilization value.

The invention discloses a result-controllable organic waste gas treatment device adopting catalytic combustion. The result-controllable organic waste gas treatment device comprises a waste gas storage tank, a pretreatment unit, a preheating unit and a catalytic combustion unit, wherein the preheating unit comprises a heat exchanger and a preheater which are connected sequentially, a low-temperature pipeline and a high-temperature pipeline are arranged in the heat exchanger; the catalytic combustion unit comprises a fixed bed catalytic reactor which comprises a catalyst carrier and an active component, the catalyst carrier adopts a ceramic honeycomb structure, the active component is rare earth oxide, and a gas outlet of the high-temperature pipeline is connected with a gas concentration monitoring device II. The catalyst is cheap, easy to obtain, durable, safe, energy-saving and environment-friendly, a processing result is controllable, and the device is suitable for being popularized and used in organic waste gas treatment.

The invention discloses a high-performance chargeable organic symmetrical lithium ion battery which comprises a positive plate, a negative plate, a diaphragm and an electrolytic solution, and is characterized in that the positive plate and the negative plate are made of nano-sheet-shaped 2,5-dihydroxy terephthalic acid tetra-lithium salt (Li4DHTPA); and the diaphragm is a three-layer diaphragm made of polyethene-polypropylene-polyethene. Compared with a reported full organic lithium ion battery system, the high-performance chargeable organic symmetrical lithium ion battery has the advantages that materials are cheap and easy to obtain; the fabrication (an acid-alkali neutralization reaction) is simple; the specific capacity (212 mAhg<-1>) is large; the working voltage (1.8V) is high; the cycle performance is good (95% of the initial capacity can be kept after circulation of 50 cycles). The high-performance chargeable organic symmetrical lithium ion battery is expected to serve as a green full organic lithium ion battery of a next generation.

The invention discloses a polyvinylamine film with a branched network structure as well as a preparation method and an application of the film. The film consists of a polyethyleneimine modified indianite tube composite and a polyvinylamine substrate in the mass ratio being (0.1-5.0):100. Firstly, polyethyleneimine with a branched network structure is supported on indianite nanotubes with an electrostatic self-assembling technology, then, the polyethyleneimine modified indianite nanotubes and polyvinylamine are blended, a membrane casting solution is obtained and applied to the surface of a microporous filter membrane, and the functional polyvinylamine film with the branched network structure is prepared and has the thickness of 1-100 mu m. By means of the polyethyleneimine modified indianite nanotubes, crystallization of polyvinylamine molecular chains can be reduced, the polyethyleneimine modified indianite nanotubes with the branched network structure are uniformly dispersed in the polyvinylamine film, and a rapid delivery channel is provided for CO2.

The invention discloses a humidity-controllable static gas-sensitive test device and method, relates to a gas-sensitive test device and method, and aims to solve the problems of bad humidity controllability, difficult construction, and bad stability in the conventional gas-sensitive test devices and methods. The device comprises a humidity control system, the humidity control system is provided with a gas inlet, which is used to introduce carrier gas, the outlet of the humidity control system is communicated to No.1 gas inlet of a gas chamber through a No.1 gas valve, a gas-sensitive element, a fan, a thermometer and hygrometer are arranged in the gas chamber, the fan is used to mix the gas in the gas chamber, the signal output terminal of the gas-sensitive element is connected to the digital signal input terminal of a data collector, the digital signal output terminal of the data collector is connected to the digital signal input terminal of a computer, a No.1 temperature constant device is used to control the temperate of the gas chamber, and the gas chamber is provided with a No.2 gas inlet, which is used to introduce a gas sample to be tested. The device and method are mainly used to carry out gas-sensitivity tests on inorganic gas.

The invention discloses a preparation method and application of a suspension type material of starch modified nanoscale zero-valent iron, and belongs to the field of nanometer materials and water environment pollution repair. Surface modification is carried out on nanoscale zero-valent iron particles with small particle diameter and high activity, low-cost environment-friendly sodium carboxymethyl starch is used as a dispersing agent, and the nanoscale zero-valent iron is stably dispersed on the condition of maintaining the activity of nanoscale iron. The process is easy, convenient and easy to operate, the cost is low, the good dispersing effect can be achieved, the agglomeration phenomenon of the nanosale iron in water can be effectively reduced, migration of modified nanoscale iron is promoted, and the removal efficiency of the particles for organic pollutant is improved.

The invention provides an electrocatalytic coupling advanced oxidation system. The system can degrade organic pollutants into carbon dioxide and the carbon dioxide is synchronously electrocatalytically reduced to a hydrocarbon. In the catalytic system, three-dimensional hexagram-shaped Co3O4 and nano-sheet stack flower-shaped CuO are respectively used as an anode material and a cathode material, and the two electrode materials are prepared by a solvothermal method. In the three-electrode system electro-catalytic process, the Co3O4 electro-anode can thoroughly mineralize p-nitrophenol to CO2 and H2O, and the CuO electro-cathode can synchronously reduce the generated carbon dioxide into the useful hydrocarbon. When the additionally-applied bias voltage is 0.8V vs Ag/AgCl, the material has anoptimal catalytic effect, the removal rate of the p-nitrophenol can reach 98% or more, and the yields of methanol and ethanol reach 49.145 micromol/L/h and 20.475 micromol/L/h, respectively.

The invention relates to a solar heat reflective heat insulating and preserving foaming ceramic material and a manufacturing method thereof, belonging to the field of the preparation of an energy-saving ceramic material. The manufacturing method comprises the following steps of: preparing a closed pore ceramic matrix by adding an amount of low-cost minerals to industrial wastes such as coal gangues, pulverized fuel ash and the like, compounding a solar heat reflecting layer composed of inorganic materials in situ in the preparation process, and carrying out primary sintering to obtain a heat insulating and preserving integrated material which has ideal heat insulating and preserving performance, noise reduction performance and the like. The invention combines the solar heat reflection function, the structural functions of porous materials and the heat transfer and noise reduction characteristics of porous materials, and the manufactured foaming ceramic material has smaller heat transfer coefficient, higher solar heat reflectivity, favorable corrosion prevention and high-temperature resistance and excellent mechanical properties, weather resistance and sound insulation performance.Besides, the process of the manufacturing method is simple, procedures can be adjusted easily, and materials are easy to acquire, thereby facilitating application and popularization.

The invention provides a method for potting daphone odora varmargmata. The method comprises the following steps: (1) cutting preparation: selecting semi-lignified branches which bud in the spring season during the year, is annual, has no plant diseases and insect pests, and has the thickness being 2 cm, and shearing the semi-lignified branches into cutting slips with the lengths of 8-10 cm; after shearing, binding the cutting slips in bundles, immersing the bundles into a rooting powder solution for 10 min, and taking out and airing the bundles for standby application; selecting perlite, river sand, rough rice bran ash and peat soil, uniformly mixing and stirring, and thus obtaining a cutting medium; (2) cutting: cutting the standby cutting slips into the cutting medium, deeply watering after cutting, and keeping the temperature to be 20-24 DEG C; when cutting seedlings take roots and grow new leaves, transplanting the cutting seedlings to pots; (3) potting medium preparation: after uniformly mixing and stirring peat soil, perlite, rice husk rotten materials and composted chicken manure, obtaining a potting medium; (4) transplanting; (5) water and fertilizer management. The medium adopted by the method is rich in nutrition and can simultaneously meet the growth and development requirements and the safety export requirements of daphone odora varmargmata. The cultivated daphone odora varmargmata is well-grown and is beneficial to export promotion.