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The invention discloses a biomass solid formed fuel anti-slagging additive and a preparation method thereof, which belongs to the technical field of renewable energy sources and is used for solving the problems that straw biomass solid formed fuel has high alkali metal content, is slagged in the combustion process and the like. The anti-slagging additive mainly comprises 15% to 25% of magnesium carbonate, 20% to 30% of alumina and 45% to 65% of the calcium carbonate, different formula ratio is made according to different biomass raw materials; and the anti-slagging additive is added into different biomass raw materials according to the proportion of 1% to 5%. The preparation method comprises the following steps: the calcium carbonate is firstly put into a special container, the container keeps dry, then alumina is added, finally the magnesium carbonate is added, the mixture is ground and evenly mixed for 10 to 15 minutes with the grinding particle size less than 1 mm, and then a finished product is obtained. The additive can solve the problem of slagging in the combustion process of the formed fuel and increases the combustion efficiency of the formed fuel.

A hot-rolling transformation-induced plasticity steel plate and a preparation method thereof belong to the field of metallurgical technology. The steel plate comprises the following components by weight percentage: 0.18 to 0.20 percent of C, 1.30 to 1.45 percent of Mn, 0.60 to 0.70 percent of Si, 0.50 to 0.60 percent of Al, 0.009 percent or less than 0.009 percent of P, 0.007 percent or less than 0.007 percent of S, 0 to 0.040 percent of Nb and the balance of Fe. The preparation method thereof comprises the steps of: smelting low-silicon and low-carbon steel into steel ingot; heating the steel ingot to 1200 plus/minus 10 DEG C to obtain billet through forging; loading the billet into a heating furnace, heating the billet to 1200 plus/minus 10 DEG C and keeping temperature for 1 to 2 hours; carrying out rough rolling and precision rolling; air cooling till the temperature reaches 700 to 760 DEG C; accelerating cooling at a speed of reducing 40 to 50 DEG C per second; and adopting a reeling machine for reeling. The hot-rolling transformation-induced plasticity steel plate prepared by the method has high intensity of tension and better impact ductility.

The invention discloses an instant drink containing astaxanthin and a preparation method thereof. The instant drink containing astaxanthin comprises, by mass, 0.02-0.04 part of astaxanthin extract, 0.08-0.16 part of emulsifier, 4-8 parts of sweetening agent, 0.5-0.8 part of acid agent, 35-60 parts of fruit pulp and the balance water, wherein the total amount of parts by mass is 100, and the mass ratio of the astaxanthin extract to the emulsifier is 1:4. The instant drink contains astaxanthin and fresh fruit juice components, has quite high nutritive value, is easy to popularize as an instant food, meets the conception of healthy development for people, and easily promotes industrialized application of astaxanthin. An extracting technology of astaxanthin in haematococcus pluvialis and an emulsifying technology of astaxanthin are both simple and easy to implement.

Provided herein are methods and systems for detecting genetic variants from sequencing data. The methods and systems provided herein can be useful for identifying the presence or absence of clinically actionable variants from a sequencing data set and reporting the clinically actionable variants to a user of the methods and systems.

The invention belongs to the technical field of new material preparation and relates to a preparation method of blocky hybrid aerogel which specifically refers to blocky aerogel fast prepared under the normal pressure condition and has an efficient removing effect on Cd2+ in waste water. The preparation method includes the steps that firstly, tetraethyl orthosilicate, deionized water, acetonitrile and an oxalic acid solution are measured and taken and are mixed, and the mixture is placed in a water bath kettle to react; after reaction, a beaker is taken out, 3-aminopropyltriethoxysilane is transferred into the beaker through a pipette when temperature returns to room temperature, and acetonitrile is added for aging after gelation; then gel is soaked in an acetonitrile solution containing isophorone diisocyanate and is placed in the water bath kettle for crosslinking; finally, acetonitrile is added, after standing performed under room temperature, the gel is sealed through a preservative film with needle holes and placed in a normal-pressure drying oven to be dried, and the silicon dioxide blocky hybrid aerogel is obtained. In the preparation process of the blocky hybrid aerogel, no solvent exchange or surface modification exists, consumed time is short, consumed energy is little, operation is easy, and the blocky hybrid aerogel has an efficient adsorbing effect on Cd2+ in waste water.

The invention discloses an iridium complex phosphorescent material taking fluorinated fluoropyridine carboxylic acid as an auxiliary ligand and a preparation method of the iridium complex phosphorescent material, and belongs to the technical field of photoelectric and phosphorescent materials. According to iridium complexes, 2-aryl quinoline is taken as a main ligand and fluoropyridine carboxylic acid fluorinated derivatives are taken as an auxiliary ligand to synthesize a series of (C^N)2IrLX type iridium complexes, the type and the quantity of the iridium complex phosphorescent material are expanded through different permutations and combinations, and the fluorescence intensity of the iridium complexes is enhanced by modifying the main ligand and adding the auxiliary ligand containing fluorine. Light-emission devices manufactured through the phosphorescent iridium complexes have a very high internal and external quantum yield, very high luminance and very high stability.

The invention belongs to the field of food biotechnology, and in particular relates to a method for simultaneously preparing high-F ratio oligopeptide and starch sugar from corn gluten meal as a raw material. The pH of a pre-treated corn gluten meal solution is adjusted to be weakly-acidic and hydrolyzed. The supernatant is dried to obtain a starch sugar product; the precipitate is further hydrolyzed and refined to obtain the high-F ratio oligopeptide product. The method disclosed by the invention has the advantages of simple process, less equipment investment and high product yield, and the like; the content of total proteins of the high-F ratio oligopeptide product is higher than 85%, wherein the proportion of dipeptides and tripeptides in the total proteins is higher than 85%, F ratio is greater than 30, the high-F ratio oligopeptide product has good water solubility and good color and flavor, can be widely used in the field of health food and nutritious food; and the glucose content in the starch sugar product is higher than 50%, and the starch sugar product has good water solubility, and can be widely used in food and fermentation industry.

The invention relates to a method for regulating and controlling the stable flow of the liquid nitrogen jet flow state and belongs to the field of cryogenic engineering. According to regulation of the stable flow of the liquid nitrogen jet flow state through the method, a heat insulation pipeline is utilized to reduce heat leakage, the two-phase flow gas mass fraction is regulated and controlled within a certain range, the gasification ratio of liquid nitrogen in the delivering process is decreased, and the stable output result in the allowable range is obtained. The liquid nitrogen delivering flow is monitored in real time, and liquid nitrogen flow regulation and stable output are achieved through a PID regulating and control method. According to the method, cryogenic fluids in cryogenic medium processing are effectively stabilized, regulated and controlled, the dry degree of the liquid nitrogen in pipeline delivering is decreased, and the utilization rate of the fluids during liquid nitrogen ultra-low temperature cutting is increased. A liquid nitrogen delivering device is compact in structure, a vacuum pipeline is adopted, the heat loss in the pipeline is reduced, the liquid nitrogen gasification rate is decreased, the two-phase flow gas mass fraction is decreased, the liquid nitrogen jet flow state is stabilized, and the liquid nitrogen flow is accurately regulated and controlled.

An intra-spacecraft wireless communications system is disclosed. The wireless intra-spacecraft communication system comprises a first wireless transceiver, coupled to a spacecraft processor and a second wireless transceiver, coupled to at least one of the subsystems. Spacecraft operational data is communicated between the spacecraft processor and the at least one subsystem via the first and second wireless transceivers.

The invention provides a method for preparing a low-free p-phenylene diisocyanate prepolymer. The method comprises the following steps: a) mixing dehydrated polyol, p-phenylene diisocyanate and a single solvent, reacting at 60-70 DEG C, and treating the obtained reaction product in a film evaporator to obtain a treated solvent; wherein the single solvent is selected from monoester, diester, lactone, carbonate, aromatic compounds, amide, lactam, polyether or polyketone; b) mixing the treated solvent with p-phenylene diisocyanate, then adding dehydrated polyol by several times, and carrying outa reaction at 60-70 DEG C to obtain a prepolymer; and c) treating the prepolymer in a scraped film evaporator to obtain a light component and a p-phenylene diisocyanate prepolymer, the light componentcomprising a single solvent and p-phenylene diisocyanate. The mass fraction of free PPDI in the prepolymer is reduced to 1-0.1%; PPDI crystals are not separated out in the evaporation process of a film evaporator, and a condenser is not blocked.

The invention belongs to the field of alumina ceramics in inorganic non-metal materials, and particularly relates to a high-purity microlite wear-resisting alumina lining plate and a preparation method thereof. The method comprises the steps that the high-purity microlite wear-resisting alumina lining plate is generated by performing the mixing, sanding, spray granulation, modling and sintering onalpha phase alumina A and alpha phase alumina B; pseudo-boehmite, silica sol and industrial alumina are performed with wet-grinding, mixing and refining to obtain fine-particle mixed slurry capable of passing through a 600-mesh screen, and the mixed slurry is performed with pressure filtration, flash evaporation drying and calcination to obtain the alpha phase alumina A; magnesium fluoride, boricacid and high temperature calcined alumina are performed with dry-mixing, ball-milling and refining to obtain fine-particle powder capable of passing through a 180-mesh screen, and the fine-particlepowder is calcined to obtain alpha phase alumina B. The high-purity microlite wear-resisting alumina lining plate and the preparation method thereof have the advantages that the bimodal distribution of grain size is obtained in a microstructure, and a small amount of anisometric crystal exists in the microstructure, thereby improving the hardness and wear resistance of the alumina lining plate; the invention also provides a preparation method of the high-purity microlite wear-resisting alumina lining plate, the process is simple and convenient, the process parameters are controlled easily, andstable mass production can be performed.

The invention belongs to the field of filling adhesives, and especially relates to a single-component epoxy resin flowing type underfill adhesive. The underfill adhesive comprises the following components in parts by mass: 10-50 parts of bisphenol F epoxy resin, 10-20 parts of a first filler, 5-10 parts of a second filler, 5-10 parts of a curing agent, 2-5 parts of a curing accelerator, 5-15 partsof a reactive diluent, 0.1-3 parts of a flexibilizer and 0.1-3 parts of an ion trapping agent, wherein the particle size of the first filler is greater than the particle size of the second filler. The fillers used in the invention are relatively low in mass fraction; through organic cooperation of the first filler and the second filler, the thermal conductivity coefficient of the whole underfilladhesive can be increased while the viscosity of a system is controlled; and the underfill adhesive has the characteristics of good cohesiveness, good thermal conductivity and insulation performance,good heat resistance, low viscosity, good fluidity, low hygroscopicity and the like.

The invention discloses a device and method for preparing an ultra-long aging-resistant melt-blown level polypropylene material and the obtained material thereof. The device for preparing the ultra-long aging-resistant melt-blown level polypropylene material comprises a reactive twin-screw extruder, wherein a first polypropylene feeding device is arranged above a main feeding port of the reactivetwin-screw extruder; a pre-dispersed twin-screw extruder is connected to a lateral feeding port of the reactive twin-screw extruder; and an anti-aging auxiliary agent feeding device and a second polypropylene feeding device are arranged above a feeding port of the pre-dispersed twin-screw extruder separately. Through brand-new design of a process route and the device, an anti-aging auxiliary agentis added online after polypropylene degradation reaction is completed, so that side reaction that the anti-aging auxiliary agent captures free radicals generated by peroxide is eliminated, the degradation efficiency of the peroxide is improved, meanwhile, the loss of the anti-aging auxiliary agent is greatly reduced, a long-term anti-aging effect of the material is obviously improved, and the problems of poor anti-aging performance and short service life of melt-blown polypropylene prepared in the prior art are solved.

The invention discloses a method for modifying a lithium battery diaphragm by using temperature-resistant macromolecules and a corresponding lithium battery diaphragm. The method comprises the steps of fully mixing and stirring a required temperature-resistant macromolecular material and an organic solvent to prepare a precursor solution with a certain mass fraction; cutting the lithium battery diaphragm to be modified, and fixing the cut lithium battery diaphragm on an electrostatic spinning spraying device; adjusting parameters such as the voltage of the electrostatic spinning spraying device, the rotating speed of a roller, the solution injection speed and the distance between a high-pressure needle head and a roller collecting device, and electrostatic spraying or spinning the precursor solution onto the lithium battery diaphragm; and turning off the electrostatic spinning spraying device at the arrival of the required time, flattening the lithium battery diaphragm, and carrying out vacuum drying to obtain the modified lithium battery diaphragm. The modified diaphragm provided by the invention can greatly improve the electrochemical performance and safety performance of the lithium metal battery.

The invention discloses a production process for reagent grade high-purity sulfuric acid. In sulfuric acid production, a low temperature grade waste heat recovery system and a 20 percent fuming sulfuric acid production system are arranged, and the production process is characterized by adopting the following devices: a SO3 evaporator, a high-purity 98 percent sulfuric acid absorption tower, a high-purity 98 percent sulfuric acid circulating tank, a high-purity sulfuric acid cooler, a high-purity water purifier, an air purifier, and a high-purity finished 98 percent acid tank, wherein the input of the SO3 evaporator is connected with the 20 percent fuming sulfuric acid production system, and the output of the SO3 evaporator is connected with the high-purity 98 percent sulfuric acid absorption tower; the output of the high-purity 98 percent sulfuric acid absorption tower is connected with the high-purity 98 percent sulfuric acid circulating tank; the output of the high-purity 98 percentsulfuric acid circulating tank is connected with the high-purity sulfuric acid cooler through a main circulating acid pump; the acid output by the high-purity sulfuric acid cooler is input into the high-purity 98 percent sulfuric acid absorption tower to serve as circulating acid; finished acid enters the high-purity finished 98 percent acid tank; the output of the high-purity water purifier and the output of the air purifier are connected to the high-purity 98 percent sulfuric acid circulating tank; and the devices are connected with one another through pipelines.

The invention relates to a preparation method and application of a double-metal cyanide catalyst. The method comprises the following steps: dissolving a water-soluble metal cyanide salt into a mixed solution of deionized water, dropwise adding the mixed solution into a mixed solution of an organic ligand L1 of the water-soluble metal cyanide salt and the deionized water, adding or not adding an organic ligand L2, performing stirring for 0.5-6 hours, and carrying out centrifugal separation and precipitation; putting the precipitate into an extraction device, heating and vaporizing an extractionsolution into organic ligand steam or azeotropic steam of an organic ligand and water, and washing the precipitate dropwise added into the extraction device through condensation; and performing drying to obtain the double-metal cyanide catalyst. The obtained catalyst can efficiently catalyze copolymerization of epoxy compounds to prepare polyether ester polyol and homopolymerization of the epoxycompounds to prepare polyether polyol.

The invention provides a continuous flash-evaporation type fluidized drying bed for drying chlorinated polyethylene, which can effectively prevent the softening and caking of the chlorinated polyethylene, has short production period, low labor intensity and low energy consumption, and easily realizes automatic operation.