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55results about How to "Conducive to commercial promotion and application" patented technology

Method for making external-heating sterilizing insecticidal device for soil

The invention discloses a method for making an external-heating sterilizing insecticidal device for soil. According to the technical scheme, the method is characterized in that the external-heating sterilizing insecticidal device for soil comprises a cylindrical tube, a flange, a feed hopper, a sterilization and disinfestation chamber, a spiral conveying vane, a center shaft, seal plates, seal rings, a discharge pipe, an exhaust pipe, thermocouples, bearing blocks, a coupling and a variable speed motor. The external-heating sterilizing insecticidal device for soil is used for sterilizing and disinfesting the soil by external heating, flame is not in direct contact with the soil, and accordingly relative stable temperature of the soil can be maintained, the effect of sterilization and disinfestation is improved, loss of effective ingredients of the soil is reduced, production cost is low, efficiency is high, and continuous sterilization and disinfestation are available. By using the external-heating sterilizing insecticidal device for soil, pathogens, nematodes and weed seeds in the soil can be successively killed with no need of pesticides, and accordingly the ecological environment can be protected from pollution. The external-heating sterilizing insecticidal device for soil is suitable for sterilization, disinfestation and drying of the soil.
Owner:江苏农盛废弃物循环再利用有限公司

Compound conditioner for vanadium contaminated soil as well as preparation method and conditioning method of conditioner

The invention discloses a compound conditioner for vanadium contaminated soil as well as a preparation method and a conditioning method of the conditioner. The conditioner consists of the following components in parts by weight: A component: 1.5-2.5 parts of a high molecular organic matter, namely polyacrylamide PAM, and 100-150 parts of flue gas desulfurization gypsum; and B component: 50-100 parts of compost sludge and 5-20 parts of sodium-based modified bentonite; the conditioning method comprises the following steps: mixing host soil and extra soil; applying B component compound modifier to the mixed soil by an applying amount of 2-3kg / m<2.; scattering A component compound modifier to the surface of the mixed soil by an applying amount of 0.08-0.12kg / m<2>, and watering; and after two days, carrying out a step of planting ciliate desert-grass, reed, themeda japonica and other plants in the conditioned soil when moisture content is tested to be 5-15%. The conditioner disclosed by the invention has functions of improving the fertility, the water-holding capacity and the ion exchange rate of soil contaminated by such heavy metals as vanadium, buffering the pH value of the soil and the like.
Owner:TSINGHUA UNIV

Silicon carbide waste reinforced wear-resistant floor mortar and its preparation method

The invention relates to a silicon carbide waste reinforced wear-resistant floor mortar. The floor mortar comprises, by weight, 100 parts of cement, 10-50 parts of silicon carbide waste, 100-250 parts of quartz sand, 5-20 parts of silica fume, and 0.5-2 parts of an additive, wherein the average particle size and the specific surface area of the silicon carbide waste are 3-8[mu]m and 300-600m<2> / kg. Compared with the prior art, the application of the silicon carbide waste in the wear-resistant floor mortar as a reinforcing material solves the treatment problem of the silicon carbide waste, changes wastes into valuables, realizes the recycling of the silicon carbide waste, and improves the strength and the wear resistance of the wear-resistant floor mortar, so the silicon carbide waste reinforced wear-resistant floor mortar is suitable for various places with high requirements on the wear resistance of the floor mortar.
Owner:TONGJI UNIV

Wind wave and oscillation-combined floater power generation device adaptable to ice periods and power generation method

The invention discloses a wind wave and oscillation-combined floater power generation device adaptable to ice periods and a power generation method. The device comprises a single-pile foundation installed at seabed and extends out of sea surface; an anti-icing cone is installed at the intersection of the single-pile foundation and the sea surface; the top of the single-pile foundation is providedwith a tower tube; the top of the tower tube is provided with a horizontal axis wind turbine; electricity generated by the wind turbine is integrated into a power grid through a power transmission circuit; a sleeve is fixedly installed on a portion of the single-pile foundation which extends out of the sea surface; the sleeve sleeves the single-pile foundation; an annular platform is arranged at the upper part of the sleeve; two or more energy conversion systems are arranged on the annular platform; the number of the energy conversion systems is the same as the number of first connection devices; electricity generated by the energy conversion systems is transmitted to the tower tube; and the sleeve is circumferentially provided with the first connection devices at equal intervals below theannular platform, wherein the first connection devices are equal in height; and floaters of the same number with the first connection devices are arranged on the sea surface. According to the power generation device disclosed by the invention, the wave energy generating device and the wind turbine are combined, and therefore, cost can be effectively reduced, and the utilization rate of sea spaceand resources can be improved; and wind energy and wave energy are simultaneously collected for power generation, and the complementation of power in a complex environment is realized.
Owner:OCEAN UNIV OF CHINA

Preparation method of nano-hybrid composite membrane

The invention relates to a preparation method of a nano-hybrid composite membrane. The preparation method comprises the following steps: when a water phase solution containing hybrid metal particles is prepared, adding water-soluble metal salt and a complexing agent into water so as to allow metal ions to be firstly combined with the complexing agent to form a stable complex which is uniformly distributed in the water phase; then adding a precipitant capable of reacting with the water-soluble metal salt to generate precipitates and a monomer for undergoing polymerizing to generate a composite membrane, and conducting stirring and mixing and / or performing ultrasonic treatment to obtain a water-phase solution containing uniform nanoparticles; and taking the water-phase solution as a reactant to participate in an interfacial polymerization reaction to generate a nano-particle hybridized composite membrane functional separation layer. According to the invention, the distribution uniformity of hybrid metal nanoparticles in the functional separation layer can be remarkably improved, the problem of membrane defects caused by uneven dispersion and even agglomeration of the nanoparticles is reduced, the water flux of the nano-hybrid composite membrane is improved while the high rejection rate of the nano-hybrid composite membrane is kept, the uniformity and stability of the permeability of the composite membrane are improved, and reproducibility is good.
Owner:蓝星(杭州)膜工业有限公司

Measuring method for detecting geometric parameters of irregular glass

The invention discloses a measuring method for detecting geometric parameters of irregular glass. The method includes the steps that firstly, a database related to shapes of the irregular glass is created, before measurement, a type of the irregular glass to be detected is selected, and sampling at intervals is conducted on a glass transfer passage by using photoelectric sensors which are distributed on a fixed measuring scale and a moving measuring scale which stretch across the glass transfer passage; data parameters of the glass in the length direction and data parameters of the glass in the width direction are obtained by sampling; the data parameters obtained by the fixed measuring scale and the moving measuring scale are extracted by a data processing unit, multiple boundary data points of the irregular glass to be detected are sought out according to the measured data, the data are processed by combining the selected type of the irregular glass selected in the database, and the geometric parameters of the irregular glass are obtained. Only the fixed measuring scale and the moving measuring scale need to be used, the sampling at intervals is conducted on the glass transfer passage by using the photoelectric sensors which are distributed on the fixed measuring scale and the moving measuring scale, and the shape geometric parameters of the glass can be measured fast and accurately.
Owner:BEIJING LIANCHUANG BLUE COORDINATES +1

Usage of integrated soil sterilization and disinfestation device

The invention discloses usage of an integrated soil sterilization and disinfestation device, which is characterized by including: starting a speed regulating motor after igniting fuel in a heating furnace; adding the soil not sterilized or disinfested into a sterilization and disinfestation chamber from a feed hopper; using flame in the heating furnace to externally heat a tubular duct; successively killing pathogens and nematodes in soil after interior temperature of the sterilization and disinfestation chamber exceeds 60 DEG C; and discharging the sterilized and disinfested soil from a discharge pipe and exhausting water vapor from an exhaust pipe. The pathogens, the nematodes and seeds of weeds in the soil can be successively killed by using the integrated soil sterilization and disinfestation device, the soil is applicable to cuttage and seeding of flowers, seedlings and vegetables, sprouting ratio of seeds is increased, germinating rate of the weeds is reduced, normal growth and development of the flowers, the seedlings and the vegetables are ensured, and the ecological environment can be protected from pollution. The usage of the integrated soil sterilization and disinfestation device is applicable to sterilization, disinfestation and drying of various types of soil.
Owner:江苏花海种苗科技有限公司

Acyloxy containing hydroxyalkyl polysiloxane and preparation method

The invention relate to acyloxy containing hydroxyalkyl polysiloxane and a preparation method. The preparation method comprises steps as follows: hydrogen containing polysiloxane and a hydroxyalkyl acrylate or hydroxyalkyl methacrylate compound are taken as raw materials, a polymerization inhibitor is added, and a target product of acyloxy containing hydroxyalkyl polysiloxane is generated through the hydrosilylation reaction of silicon-hydrogen bonds and unsaturated double bonds under the action of a platinum catalyst at the reaction temperature of 80-145 DEG C; after the reaction, the unreacted hydroxyalkyl acrylate or hydroxyalkyl methacrylate compound is washed and removed with water, water and a solvent are removed through reduced pressure distillation, the polymerization inhibitor is removed through filtering, and the target product of acyloxy containing hydroxyalkyl polysiloxane is obtained. Acyloxy containing hydroxyalkyl polysiloxane prepared with the method contains active terminated hydroxyalkyl, and when acyloxy containing hydroxyalkyl polysiloxane is applied to preparation of high polymer materials such as modified polyacrylate and the like, the functional performance of modified siloxane-acrylate copolymers is improved.
Owner:SICHUAN YIXIN TECH

Preparation method and application of main chain embedded terminal amino silicon oil with side chain containing tertiary amino group

ActiveCN107759794AGood directional adsorption effectHigh ammonia valueGrip property fibresVegetal fibresChemistryBackbone chain
The invention discloses a preparation method and application of main chain embedded terminal amino silicon oil with a side chain containing a tertiary amino group. The preparation method comprises thestep: with a side tertiary amino group-containing secondary amine end-capping linear comb-shaped epoxy polyamine compound and end epoxy (polyether) silicone oil as raw materials and an organic solvent as a reaction medium, performing an aminolysis ring-opening reaction of the epoxy group to prepare the main chain embedded terminal amino silicon oil with the side chain containing the tertiary amino group. Then a novel embedded terminal amino silicon oil softening agent for fabric softening and finishing is obtained by adjusting the pH to 5 to 6 with glacial acetic acid, and adding an environment-friendly emulsifier for mechanical emulsification. Compared with the existing main chain embedded terminal amino silicon oil softening agent, the novel embedded terminal amino silicon oil softeningagent has more excellent hand feeling.
Owner:SICHUAN TEXTILE SCI RES INST +1

Coating method of electrode material and coating thereof, and application of electrode material

ActiveCN109950478AImprove surface and interface structure stabilityImprove conductivityMaterial nanotechnologyCell electrodesCyclic processSlurry
The present invention discloses a coating method of an electrode material and a coating thereof, and application of an electrode material. The method comprises the following steps of: (1) putting an electrode material into a solution containing at least three alkynyl compounds for reaction, or, drying slurry comprising the electrode material and then putting the slurry comprising the electrode material to the solution containing the at least three alkynyl compounds for reaction; and (2) performing heat treatment of a reaction product obtained in the step (1) to obtain a carbon-coated electrodematerial. The method provided by the invention achieves carbon coating of various types of electrode materials difficult for carbon coating in the true sense to greatly improve the surface electricalconductivity of the electrode material, improve the low-temperature performance of the electrode, reduce the electrode structure damaging of the electrode material in the cycle process and obviouslyimprove the cycle performance and the safety performance of the electrode. The method is simple in process and easy to achieve the industrial production.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Drawer type pipeline sediment ground sampler and sampling method thereof

PendingCN112414744AAvoid manual downhole samplingSimple and safe samplingWithdrawing sample devicesForward slidingSediment
The invention discloses a drawer type pipeline sediment ground sampler and a sampling method thereof. The ground sampler comprises a sliding rail frame located in the horizontal direction, a sedimentsampling tank connected with the sliding rail frame in a sliding mode, a sediment storage box located at the bottom of the rear end of the sliding rail frame, a first driving mechanism for driving thesediment sampling tank to slide forwards, a second driving mechanism used for driving the sediment sampling tank to slide backwards, and a third driving mechanism used for driving the sediment sampling tank to incline. When the sampler is used, people do not need to enter a well, sampling can be completed on the ground, and convenience and quickness are achieved.
Owner:TIANJIN UNIV

Nickel ordered porous array film and preparation method thereof

The invention discloses a nickel ordered porous array film and a preparation method thereof. The film consists of nickel ordered porous arrays, holes in the arrays are regular hexagonal or circular and are arranged in a hexagonal period, the diagonals or the diameters of the holes are 650 to 1,600 nanometers, the hole pitch is 200 to 1,000 nanometers, the hole period is 1,000 to 2,000 nanometers,the thickness of the film is 20 to 50 nanometers, and the void ratio is 60 to 90 percent. The method comprises the following steps: firstly placing polystyrene suspension on a rotary planar substrateto obtain a single-layer colloidal crystal template, then heating the template for 6 to 15 minutes at the temperature of between 60 and 150 DEG C, later placing the template in argon atmosphere and etching the template for 6 to 100 minutes by plasma, heating the template for 0 to 15 minutes at the temperature of between 60 and 150 DEG C, thermally evaporating nickel metal to the treated template at the temperature of between 900 and 1,000 DEG C under the pressure of 1-9*10<-5>Pa, and placing the template in dichloromethane solution for supersonic treatment for 5 to 120 seconds to obtain the film. The nickel ordered porous array film and the preparation method thereof can be applied in the fields of high-density magnetic storage media, sensors, invisible materials, efficient catalysts and the like.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Piezoelectric composite component electrode manufacturing method

The invention belongs to the technical field of advanced manufacturing and provides a piezoelectric composite component electrode manufacturing method. Firstly, the surface of the piezoelectric composite component is pretreated in a mechanical grinding method to enable the piezoelectric composite component to have good flatness and proper roughness; then, the surface of the PZT piezoelectric composite component is modified to enhance the surface energy, in particular, ultraviolet light is adopted to irradiate on the surface of the composite component, an oxygen-containing polar functional group is generated on the surface, and the bonding strength between the surface of the piezoelectric composite component and a metal layer is improved; and finally, a micron metal thin film is subjected to sputtering as an electrode of the piezoelectric composite component. The piezoelectric composite component manufactured in the invention is low in surface electrode resistance, high in bonding strength and strong in welding, and mass production and commercialization popularization and application are facilitated.
Owner:DALIAN UNIV OF TECH

Polygene methylation detection kit for nasopharyngeal carcinoma diagnosis

The invention belongs to the field of molecular diagnosis, and particularly relates to a polygene methylation detection kit for the nasopharyngeal carcinoma diagnosis. The kit comprises a p16 gene extraction reagent group, a p16 gene methylation modification reagent group, a fluorescent quantitative PCR detection reagent group and a p16 gene methylation level calibrator. Compared with the prior art, the kit has the beneficial effects that the p16 gene in peripheral blood of a patient is extracted through superparamagnetic beads, the detection is carried out through fluorescent quantitative PCR, a detection sample is easier to obtain, the DNA extraction is simpler, more convenient and faster, and the commercialized application and popularization of the kit are facilitated; in addition, methylation detection primers adopted by the kit can more efficiently detect the methylation level of the p16 gene; and moreover, the p16 gene methylation level calibrator in the kit can ensure the reliability of a detection result.
Owner:右江民族医学院

Transparent conductive oxide film based on TiN interlayer doping

The present invention discloses a transparent conductive oxide film based on TiN interlayer doping, comprising a substrate, wherein a lower transparent conducting layer, an interlayer and an upper transparent conducting layer successively grow on the substrate from the bottom up, the lower transparent conducting layer and the upper transparent conducting layer are transparent conductive oxide layers, and the interlayer is a TiN layer. According to the transparent conductive oxide film of the present invention, a TiN film (i.e., the interlayer) is doped in a traditional TCO film, in this way, carrier concentration of the film is increased, carrier mobility is raised, and optical performance of the film of changed, so that the film can be matched with medium within a near-infrared band to generate plasma resonance, therefore, the transparent conductive oxide film can be applied to the field of optical devices within the near-infrared band, in addition, TiN is rich in source and low in price, thereby facilitating commercial promotion and application.
Owner:ZHEJIANG UNIV

Organic semiconductor thin film solar cell preparation method based on nickel oxide anode interface layer

The invention discloses an organic semiconductor thin film solar cell preparation method based on a nickel oxide anode interface layer. The organic semiconductor thin film solar cell preparation method includes: placing nickel oxide block target materials and a transparent conductive substrate into a radio frequency magnetron sputtering device; sputtering in an argon atmosphere or an argon and oxygen mix atmosphere so as to obtain a transparent conductive substrate covered with nickel oxide film; then, mixing poly (3-hexylthiophene), [6,6]- phenyl-C61-methyl butyrate and chlorobenzene in an inert atmosphere, and stirring to obtain photosensitive coatings; coating the transparent conductive substrate covered with the nickel oxide film with the photosensitive coatings under the inert atmosphere; performing annealing treatment on the transparent conductive substrate so as to obtain a transparent conductive substrate covered with the nickel oxide film and photosensitive film in sequence; furthermore, using an electron beam evaporation method for lithium fluoride film and aluminum film evaporation on the surface of the transparent conductive substrate covered with the nickel oxide film and the photosensitive film in sequence; and finally, placing the transparent conductive substrate in the inert atmosphere to complete encapsulating and accordingly obtaining a target product. According to the organic semiconductor thin film solar cell preparation method based on the nickel oxide anode interface layer, production cost is low, and the nickel oxide film is large in area and good in quality.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Wound plaster and preparation method and application thereof

The invention relates to a wound plaster. The wound plaster comprises a sterilizing film, a protective film covering the sterilizing film and adhesive tapes connected with the two ends of the sterilizing film, wherein the sterilizing film comprises graphene or graphene oxide and a traditional Chinese medicine composition, the traditional Chinese medicine composition comprises radix notoginseng, herba taraxaci, flos lonicerae, herba lobeliae chinensis, nepal dock root, herba rabdosiae and folium isatidis, and the graphene or graphene oxide contains active functional groups. The wound plaster has a very good bleeding arresting effect, swelling reducing and pain easing effects, scar removing effect and sterilizing effect, has great progress in use effect and has popularization and applicationvalues.
Owner:GUANGXI UNIV OF CHINESE MEDICINE

High-sensitivity microwave biosensor for testing saccharomycetes and application thereof

The invention relates to a high-sensitivity microwave biosensor for testing saccharomycetes. The high-sensitivity microwave biosensor comprises a first substrate and a second substrate which are stacked, the first substrate is provided with a microfluid channel, the microfluid channel comprises a cavity, and the cavity is used for containing quantitative to-be-detected solution; and the second substrate is provided with a microwave resonator, the microwave resonator comprises a metal capacitor structure and a metal inductor structure, the metal capacitor structure comprises a cascade type interdigital capacitor, the metal inductor structure comprises a winding type inductor, the cascade type interdigital capacitor is connected with the winding type inductor in parallel, and the cascade type interdigital capacitor and the cavity are calibrated and bonded. The cascade interdigital capacitor and the winding inductor are connected in parallel, so that the quality factor of the device is greatly improved, the chip size of the device is reduced, the detection sensitivity and accuracy of the device are remarkably improved, trace quantitative detection is realized, the cost of a test solution is greatly reduced, the whole detection operation is convenient and rapid, the detection time is saved, and commercialized popularization and application of the cell counting method are facilitated.
Owner:JIANGNAN UNIV

Water-based fireproof coating and preparation method thereof

The invention belongs to the technical field of coating processing, and particularly relates to a water-based fireproof coating which comprises the following substances in parts by weight: 25-30 partsof vinyl acetate-acrylic emulsion, 6-10 parts of organic silicon resin, 4-7 parts of alumina fiber, 2-4 parts of thickener, 0.5-1 part of defoamer, 1-3 parts of silane coupling agent, 3-5 parts of ammonium polyphosphate, 2-5 parts of potassium tripolyphosphate, 1-4 parts of paraformaldehyde, 7-10 parts of compound modified filler and 80-85 parts of deionized water. The coating provided by the invention has very strong temperature resistance and fire resistance, and is high in overall mechanical strength and good in use stability. In addition, the preparation method of the coating is simple and easy to commercialize, popularize and apply.
Owner:田超群

Preparation method of long term-preservation blood fat reducing and blood pressure reducing tea

The invention discloses a preparation method of a long term-preservation blood fat reducing and blood pressure reducing tea. The method comprises the following steps: 1, sieving, and weighing; 2, extracting, and pulverizing; 3, adding white granulated sugar and citric acid powder; and 4, carrying out irradiation sterilization. The blood fat reducing and blood pressure reducing tea has the advantages of reasonable formula, great improvement of the utilization rate of effective components of medicines by concentrating and collecting the effective components of the medicines after sieving and extracting, preservation of the effective components of the blood fat reducing and blood pressure reducing tea through carrying out irradiation sterilization and effectively controlling the radiation dose, and prolongation of the storage life by killing other bacteria in the blood fat reducing and blood pressure reducing tea through carrying out irradiation sterilization.
Owner:许克清

Erbium-doped laser ultrashort pulse generation device and method

PendingCN113594842ANarrow line widthWavelength controllableLaser detailsPhysicsUltrashort pulse laser
An ultrashort pulse generation device based on mixed crystal erbium-doped laser ceramics comprises a laser pumping source (1), an optical coupling system lens group (2), a laser input mirror (3), a laser gain medium (4), a first resonant cavity reflector (5), a second resonant cavity reflector (6), a resonant cavity, a passive mode locking element (7) and a laser output mirror (8) which are arranged in sequence, wherein a laser signal emitted by the laser pumping source enters the laser gain medium through the optical coupling system lens group, the laser gain medium generates laser oscillation under the action of a resonant cavity formed by the laser input mirror, the resonant cavity reflectors and the laser output mirror (8), laser is modulated by the passive mode-locking element (7) in the resonant cavity, and ultrashort pulse laser is output through the laser output mirror (8). The ultrashort pulse generation device has simple method, can realize high-efficiency, high-power and high-beam-quality 1.6-micron ultrashort pulse laser operation, and obtains ultrashort pulse laser with different central wavelengths.
Owner:YANCHENG INST OF TECH

Flexible strain sensor based on vertical graphene and preparation method thereof

The invention provides a flexible strain sensor based on vertical graphene and a preparation method thereof, according to the method, a high-temperature-resistant flexible material is used as a substrate, an inductively coupled plasma chemical vapor deposition method is combined, and the flexible strain sensor based on the vertical graphene is prepared in a transfer-free manner at the temperature of 600-700 DEG C. Wherein the adopted flexible substrate is fluorine crystal mica, can tolerate high temperature as high as 1100 DEG C, has good flexibility when the thickness is 500 microns, and serves as a good substrate for growing the vertical graphene, so that the situation that the performance of the sensor is reduced due to the fact that the structure is damaged in the transfer process of the vertical graphene is avoided; and the etching liquid used in the transfer process is also prevented from damaging the environment or influencing the health of a human body. In addition, the copper interdigital electrode and the vertical graphene are combined, ohmic contact is improved, and the response performance of the flexible strain sensor can be improved.
Owner:JIANGSU UNIV +1

Method for preparing wood-plastic plate from waste resin powder

The invention discloses a method for preparing a wood-plastic plate from waste resin powder, which belongs to the technical field of wood-plastic plate processing and preparation, and comprises the following steps: (1) waste resin powder preparation, (2) additive preparation, (3) raw material weighing, (4) mixing treatment, and (5) extrusion to prepare the finished product. The method is simple inoverall process and beneficial to commercial popularization and application, and the prepared wood-plastic plate is good in quality, high in market competitiveness and high in economic benefit.
Owner:清远市越北网络科技有限公司

A compound improver for vanadium-contaminated soil and its preparation method and improvement method

The invention discloses a compound conditioner for vanadium contaminated soil as well as a preparation method and a conditioning method of the conditioner. The conditioner consists of the following components in parts by weight: A component: 1.5-2.5 parts of a high molecular organic matter, namely polyacrylamide PAM, and 100-150 parts of flue gas desulfurization gypsum; and B component: 50-100 parts of compost sludge and 5-20 parts of sodium-based modified bentonite; the conditioning method comprises the following steps: mixing host soil and extra soil; applying B component compound modifier to the mixed soil by an applying amount of 2-3kg / m<2.; scattering A component compound modifier to the surface of the mixed soil by an applying amount of 0.08-0.12kg / m<2>, and watering; and after two days, carrying out a step of planting ciliate desert-grass, reed, themeda japonica and other plants in the conditioned soil when moisture content is tested to be 5-15%. The conditioner disclosed by the invention has functions of improving the fertility, the water-holding capacity and the ion exchange rate of soil contaminated by such heavy metals as vanadium, buffering the pH value of the soil and the like.
Owner:TSINGHUA UNIV

Power supply circuit of clock

The invention discloses a clock power supply circuit which comprises an energy storage circuit, a control circuit and a current limiting module, wherein the control circuit is connected between a power source and the energy storage circuit; under the control of the control circuit, the energy storage circuit can store energy when the power source provides power supply and completes discharge for the clock circuit when the power source stops power supply; the current limiting module is connected between the energy storage circuit and the clock circuit; moreover, the current limiting module ensures step by step discharging of the energy storage circuit and also ensures that the clock circuit works under low current conditions. The invention, which can prolong power supply time and lowers therequirements on the energy storage circuit, greatly reduces the capacity requirements of a super capacitor; moreover, that the invention can reduces the size of the super capacitor is convenient forthe miniaturization of a digital circuit.
Owner:VERTIV CORP

A kind of v-shaped polydimethylsiloxane polyoxyethylene ether monoacrylate and preparation method thereof

The invention discloses a V-shaped polydimethylsiloxane polyoxyethylene ether monoacrylate, which comprises hydrophobic V-shaped polydimethylsiloxane, hydrophilic polyethylene glycol and reactive unsaturated double bonds. The preparation method includes preparing a hydrogen-containing polysiloxane oligomer intermediate by cationic ring-opening polymerization of octamethylcyclotetrasiloxane and 1,1,1,3,5,5,5-heptamethyltrisiloxane; preparing a V-shaped polydimethylsiloxane-polyethylene glycol block copolymer by hydrosilylation of the hydrogen-containing polysiloxane oligomer intermediate and allyl alcohol polyoxyethylene ether; and preparing the V-shaped polydimethylsiloxane polyoxyethylene ether monoacrylate by esterification of the V-shaped polydimethylsiloxane-polyethylene glycol block copolymer and acrylic monomers. The V-shaped polydimethylsiloxane polyoxyethylene ether monoacrylate containing 2 hydrophobic polysiloxane segments can be used for preparing an emulsion type alkali-soluble thickener, and thus the hydrophobic association strength is improved, and the thickening performance of the prepared alkali-soluble thickener is improved after use.
Owner:SICHUAN TEXTILE SCI RES INST +1
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