59results about How to "Has a cost advantage" patented technology

The invention discloses a current collector carbon coated aluminum foil and its preparation method. A carbon-containing composite layer is arranged on the substrate of the current collector carbon coated aluminum foil, and is combined with the substrate through a binder, wherein the thickness of the carbon-containing composite layer is 1-100mum; the carbon-containing composite layer comprises granular conductive carbon black pre-dispersed by a dispersant, and fibrous conductive carbon; the granular conductive carbon black and the fibrous conductive carbon filled between the layers of the granular conductive carbon black form a netted node form conductive network. The composite layer is tightly combined with the substrate of the aluminum foil, so the conductivity and the corrosion resistance of the aluminum foil are improved, and the aluminum foil is protected from oxidation or chemical corrosion. The preparation method of the aluminum foil comprises the following operations: mixing the conductive carbon black with the dispersant in an organic solvent to pre-disperse, adding the fibrous conductive carbon, uniformly mixing, adding the binder to prepare a slurry, coating on the aluminum foil, and carrying out vacuum drying. The current collector carbon coated aluminum foil enables the interface impedances of the current collector and an active layer to be reduced, the internal resistance of a battery to be reduced, and the cycle life and the ratio performances of the battery to be improved when the aluminum foil is used as a lithium ion battery anode current collector. The aluminum foil has the advantages of simple technology, low cost and wide application prospect.

The invention provides a preparation method of mesotrione. The preparation method comprises is capable of preparing the target product from raw materials such as ortho-nitrotoluene, chlorosulfonic acid, sulfoxide chloride, sodium sulfite, chloroactic acid, 1,3-cyclohexanedione in the presence of a catalyst and acid-base. The preparation method is based on common chemical raw materials, the reaction flow of each step is implemented under conventional operation conditions, the amount of three wastes is low, the total yield is above 61%, the purity of the product is high, the purity of the coarse product of the mesotrione is greater than 98%, and the coarse product of the mesotrione can be further purified; as a result, the preparation method of mesotrione is applicable to large-scale industrial production.

The invention discloses a power amplification module, which comprises a power divider for equally dividing an RF input signal into N signals according to the power, N being equal to or larger than 2; N power amplifiers working in a linear region respectively for amplifying the N signals and outputting N amplified signals; and a mixer for mixing the N amplified signals to one signal and outputting the signal as the RF output signal. The power amplification module can significantly improve the linearity of transmission power and has lower cost.

The invention discloses a foldable F-inverted and annular combined multi-frequency-range communication antenna. The antenna comprises an antenna body which is at least one conductor subcircuit and is provided with a grounding point and a feeding point; on the antenna body, a first branch and a second branch are formed based on the feeding point as an initial end, and a third branch is formed based on the grounding point as an initial end; and the second branch is connected with the tail end of the third branch to form a semi-close first gap, the first branch and the second branch form a semi-close second gap, the joint part of the second branch and the third branch and the tail end of the first branch form a third gap, and the antenna body is also provided with a fourth branch which is generated on the initial end of the third branch. The antenna has the advantages of simple structure, good electrical energy and the like.

The invention discloses a preparation method of tea feed. The method includes the following steps that firstly, tea leaves are soaked in water, the tea leaves are expanded after being taken out, and the expanded tea leaves are prepared; secondly, animal oil and vegetable oil are taken and mixed to prepare compounded grease, emulsifiers, water, zinc lactate, lactic acid or citric acid, sucrose or glucose and sodium cyclamate are added into the compounded grease and are evenly mixed, finally, homogeneous processing is performed, and emulsified fat pulp is prepared; thirdly, the emulsified fat pulp is sprayed to the expanded tea leaves, the tea feed is obtained after even mixing, or the tea feed is obtained through drying after even mixing. The technology is simple and implementation is easy. The prepared tea feed is rich in emulsified fat pulp, tea polyphenol, lactic acid, zinc lactate and other active substances, and the tea feed has the functions of improving immunity and ingestion, promoting digestion, stimulating growth, reducing product cholesterol, improving meat quality of bred animals and the like. The prepared tea feed has the oil oxidization resistance function and can decrease the oil oxidization speed in summer.

The invention discloses a solar evacuated tube collector for heat exchange in a micro-channel. The micro-channel comprises a glass tube, a micro-channel tube bundle, a liquid return tube, a gas collecting cavity, a liquid collecting cavity, a gas guide tube and a liquid guide tube which form a separating type circulating tube together with an external condensation section, wherein a circulating working medium capable of generating gas-liquid phase change within the heat-collecting temperature area range is filled into the separating type circulating tube, and the filling amount of the circulating working medium is 10 to 90 percent of the inner volume of the separating type circulating tube, so that the circulating working medium has a stable airlift pump effect in the micro-channel. In the solar evacuated tube collector, by utilizing the high heat transfer efficiency and unique airlift pump effect of the micro-channel, the heat transfer efficiency of a solar collector is improved, the weight of a heat absorption body in the conventional evacuated tube solar collector is reduced, and the heat-collecting temperature is improved, so the expansion of the application temperature area range and the application occasion range of the evacuated tube solar collector is facilitated.

The invention discloses a carbon nanotube master batch which comprises the following components in parts by weight: 50-80 parts of PP resin, 10-40 parts of a filler, 3-10 parts of MWCNT and 0.1-3 parts of auxiliaries, wherein the MWCNT is a multi-walled carbon nanotube, and the filler is at least one of talcum powder, calcium carbonate, barium sulfate and glass fiber. According to the carbon nanotube master batch disclosed by the invention, the MWCNT master batch with high dispersion degree can be prepared under the condition of common double-screw extrusion by controlling all the components and contents, and the problem that the MWCNT structure is easily damaged due to the fact that professional equipment is required to be used for banburying in the traditional master batch preparation issolved. Meanwhile, the invention also discloses a preparation method and application of the carbon nanotube master batch.

The invention provides an overflow compensating method and device for correcting an MEMS elapsed time clock. The method comprises the steps that an initial frequency error value of the MEMS elapsed time clock under a current temperature value is obtained; an underclocking parameter needed for frequency obtaining is computed; the initial frequency error value is used as an initial value to carry out sequential accumulation, and when an accumulation value numerical value is larger than or equal to 1, 1 is overflowed; when the numerical value is smaller than or equal to -1, -1 is overflowed; when the numerical value is larger than -1 and smaller than 1, overflowing does not happen; and the underclocking ratio with the value being the sum of the underclocking parameter and an overflowing value is used for carrying out underclocking on the practical output frequency of the MEMS elapsed time clock, and the needed frequency is obtained. A 0/1 sequence is used for equalizing the initial frequency error value of the MEMS elapsed time clock under a certain temperature, double-way overflow compensation is achieved, an expanding scheme is easy to implement, and cost advantages are achieved.

The invention discloses a reserved bandwidth allocation method and device for CPS (Cyber Physical System) services. The method comprises the steps of: for a service r in CPS services, according to a total cost minimization strategy composed of the emergency cost, the quality of service QoS loss and the operation cost, determining N<r>(t) and the bandwidth amount planned for maintaining the servicer in the time slot t by all kinds of cloud platforms; and, according to the determined N<r>(t) and bandwidth amount planned for maintaining the service r in the time slot t by all kinds of cloud platforms, performing reserved bandwidth allocation of the CPS services in the time slot t, wherein N<r>(t) is the bandwidth amount planned for maintaining the service r in the time slot t. By applicationof the reserved bandwidth allocation method and device for the CPS services disclosed by the invention, for specific requirements of multiple CPS services in a CCPS environment, an optimized reservedbandwidth allocation strategy is provided for satisfying requirements of multiple CPS services; influence of the difference among the operation cost, a service level agreement (SLA) and the actual delivered bandwidth is reduced; and simultaneously, the basic QoS level is kept.

The invention belongs to the field of biological medicine, and relates to a composite biological material of platelet-rich plasma tissue and a preparation method thereof. The composite biological material comprises PRP loaded with icariin, has the functional characteristics of good biological activity, chondrogenic property, osteogenic property and bone healing property, and can be used as a noveltissue engineering scaffold for bone tendon interface damage, is used for treating injury of a bone tendon interface, and realizes high-quality rapid healing of the bone tendon interface, the composite biological material shows the excellent slow-release effect, and can be slowly released at a proper speed for a proper duration, so that the drug effect of icariin is exerted to a greater extent, and side effects caused by over-high dosage are avoided.

The invention discloses an organic catalyst for synthesis of glyphosate. The catalyst is an alkoxy compound including alkali metal in the first main group, also comprises alkoxy metal compounds whichare prepared through a reaction between fresh anhydrous alcohol and anhydrous hydroxides or oxides of the first main-group alkali metal or the alkali metal, and is one or a combination of more of thealkoxy metal compounds in the form of an alcohol solution of the alkoxy metal compounds. The glyphosate synthesizing process comprises the steps: adding the organic catalyst to a methanol solution ofparaformaldehyde or formaldehyde, performing a depolymerization reaction, adding triethylamine and glycine after completion of the reaction, performing stirring for an addition reaction, adding dimethyl phosphite after completion of the reaction, performing a condensation reaction, adding hydrochloric acid for hydrolysis after completion of the reaction, and then performing crystallization, washing and drying so as to obtain glyphosate. The reaction speed and reaction selectivity of glyphosate synthesis can be improved through the specific catalyst, the depolymerization reaction has a high speed and thoroughness, and the addition reaction also has high selectivity, so that the yield of the glyphosate product reaches 3% or above; and the process has the advantages of reactions, energy saving, cost and environmental protection.

The invention relates to the technical field of multi-layer coating films of glass substrates, in particular to a mobile phone faceplate multi-layer coating film layer and a preparation method thereof. According to the technology for preparing the high-transmittance and abrasion-resistant multi-layer film on a glass substrate, the glass substrate, a magnesium oxide polycrystal seed layer, a high-hardness abrasion-resistant aluminum oxide coating film layer and a titanium oxide/aluminum oxide laminated transmittance enhanced layer are specifically included. According to the mobile phone faceplate multi-layer coating film layer and the preparation method thereof, (1) the metal organic chemical vapor deposition (MOCVD) technology is adopted so that large-area uniform film forming can be achieved; (2) through the design of a polycrystal buffer layer, the high-hardness aluminum oxide coating film of a microcrystal-amorphous mixed structure is grown in an extending mode at a low film forming temperature; and (3) the transmittance is improved through the aluminum oxide/titanium oxide/aluminum oxide laminated layer.