332results about How to "Reduce spawn rate" patented technology

The invention belongs to the field of flame retardant materials, and particularly relates to a composite flame retardant containing a microcapsule-coated intumescent flame retardant and a preparation method. The composite flame retardant containing the microcapsule-coated intumescent flame retardant consists of the following components in percentage by mass: 60-94 percent of microcapsule intumescent flame retardant, 5-25 percent of flame-retardant synergist, 0.9-10 percent of smoke suppressant and 0.1-5 percent of hindered amine light stabilizer. The preparation method comprises the following steps: preparing the microcapsule-coated intumescent flame retardant; placing the microcapsule-coated intumescent flame retardant, the flame-retardant synergist, the smoke suppressant and the hindered amine light stabilizer into a high-speed mixer for mixing uniformly, and discharging to obtain the composite flame retardant containing the microcapsule-coated intumescent flame retardant. Multiple components in the composite flame retardant can play roles in retarding flame in a synergetic way, so that the flame retardance of a high polymer material is improved remarkably, the production of toxic and harmful smog in a burning process can be suppressed, and the flame retarding efficiency is increased greatly.

The invention discloses a nano ZSM-5 molecular sieve based catalyst and preparation and use methods. The molecular sieve catalyst consists of molecular sieves and metal components, wherein the molecular sieves are nano ZSM-5 molecular sieves with a short b-axis, a medium high silica-alumina ratio, less strong acid, high Lewis acid content, and resistance to hydrothermal deactivation. The preparation method is as follows: mixing a silicon source, an aluminum source, a template agent, a structure promoter, an additive and alkali with water, and stirring to prepare a precursor solution, then crystallizing, separating solid from liquid, and calcinating to obtain molecular sieve raw powder; mixing the molecular sieve raw powder with an ammonium salt solution, stirring, filtering, mixing with the ammonium salt solution for several times, stirring, filtering, and calcinating to obtain hydrogen-type ZSM-5 molecular sieves; mixing with the metal precursor solution, drying and calcinating to obtain the aromatization catalyst. The use method is as follows: transforming oxy-compound raw materials to aromatic hydrocarbon through the catalyst under the reaction conditions. The nano ZSM-5 molecular sieve based catalyst has the characteristics of being high in aromatics yield (reaching up to 99%) and long in service life (the catalyst is alive after 300 hours, and the aromatics selectivity reaches up to 70% after the catalyst is subjected to hydrothermal aging at 760 DEG C for 4 hours).

The invention provides a virtual machine migration method and a virtual machine migration device, wherein the method comprises the following steps that a virtual machine migration task on each server in a network is determined, the virtual machine migration task comprises a mark of a virtual machine to be migrated, a mark of a source server, a mark of a target server and the delay time for migrating the virtual machine to be migrated from the source server to the target server, the migration sequence of the virtual machine to be migrated is determined according to the mark of the virtual machine to be migrated, the mark of the source server, the mark of the target server and the delay time for migrating the virtual machine to be migrated from the source server to the target server, the migration path is determined according to the migration sequence of each virtual machine to be migrated, each migration path comprises at least two virtual machine migration tasks with the successive migration sequences, and at the first set time, the migration transmission bandwidth increase and/or dirty page generation speed reduction is carried out on the migrating virtual machines in the migration path with the maximum virtual machine migration task delay time sum.

The invention discloses a production method of a graphene-aluminum composite, and belongs to the field of metal-matrix composites. Aluminum alloy powder with the semisolid temperature interval and graphene are adopted as raw materials. The method mainly includes the steps of 1, chemical nickel plating of the graphene; 2, mixing; 3, pressing; and 4, semisolid extruding. According to the graphene-aluminum composite produced through the method, the wettability and the metallurgical bonding strength of the nickel-plated graphene and aluminum alloy are high, the nickel-plated graphene is uniformly distributed in the matrix aluminum alloy, the microstructure is compact, the specific strength and the specific stiffness are high, and the thermal conductivity and the electrical conductivity are good. Thus, the graphene-aluminum composite has wide application prospects in the fields of the national defense and military industry, aerospace, electricity and heat exchange.

The embodiment of the invention provides a junk data recycling method and a storage device. A data volume of first data at current time and variable quantity of the first data within a preset period before the current time in each segment of the storage device are recorded respectively; according to the data volume of the first data and the variable quantity of the first data in each segment, a predicted value of the first data is calculated; according to the predicted value of the first data in each segment, segments in which junk data need recycling are determined, junk data in the segments with more junk data needing recycling and a lower junk generating speed are recycled preferentially, and therefore efficiency of recycling junk data is improved.

The invention belongs to the field of the coal chemical industry, and in particular relates to a medium and low temperature coal tar processing method. The method comprises the following steps: removing solid residues from the medium and low temperature coal tar, preprocessing the coal tar to obtain carbolic oil, water and heavy oil; performing phenol extraction on the obtained carbolic oil to obtain a pure phenol product and dephenolized oil; mixing the obtained heavy oil and the obtained dephenolized oil and introducing the mixture in a fluidized bed reactor to perform a hydrogenation reaction, and obtaining modified heavy oil, sulfur-containing and ammonia-containing gas side products; performing hydrorefining and hydrocracking reactions on the modified heavy oil to obtain dry gas, liquefied gas, naphtha, a diesel oil product and a tail oil product. The naphtha and the diesel oil are clean and stable in performance. In addition, a plurality of high value added products are obtained. After hydrotreatment of the fluidized bed, the catalyst service life of the fixed bed reactor is prolonged; furthermore, the heavy component processing problem in the coal tar can be solved. The modified heavy oil after hydrotreatment of the fluidized bed can be subjected to hydrorefining and hydrocracking to improve the oil property.

The invention discloses a novel ingot casting crucible which is a high-efficiency ingot casting crucible, wherein the ingot casting crucible is obtained through secondary coating of inductive nucleation substances such as silicon dioxide slurry and the like based on a condition that a general silicon nitride coating is sprayed on the surface of the inner wall of an existing ingot casting crucible, and has the advantage of improving the yield of ingot casting; The inductive nucleation substances at the bottom of the crucible can be sprayed in a geometric figure including tetragon, hexagon and the like and the figure can also be provided with a concave-convex structure so as to facilitate the aggregation and subsequent processing and removal of impurities at the bottom of a silicon ingot. The high-efficiency ingot casting crucible is used for inducing the nucleation of crystal silicon by using silicon dioxide powder and the like during a crystal growth process, so that the defects including dislocation, crystal boundary and the like of the crystal in the preliminary stage of crystal growth can be reduced, the quality of the crystal growth and the overall quality of silicon crystal can be improved, thus the yield of the silicon ingot can be further increased and the overall economic efficiency can be improved.

An object of the present invention is to provide a separator which is excellent in sticking and adhesion capability with the solid electrolyte, physically strong and highly heat-resistive and to provide a solid electrolyte condenser which is excellent in the impedance characteristic and leak current characteristic. In a solid electrolyte condenser comprising an anode foil, a cathode foil, a separator, the separator is made of a nonwoven fabric containing polyester resin or its derivative manufactured by the wet method. The condenser element is formed by rolling the anode foil and the cathode foil together with the separator between them. The solid electrolyte is provided between the anode foil and the cathode foil of the condenser element.

The invention relates to an expansive waterborne fireproof and flame-retardant coating for a wood material and a preparation method of the expansive waterborne fireproof and flame-retardant coating. The coating comprises water and the following components in parts by weight: 200 parts of melamine-modified urea resin emulsion, 110-120 parts of ethylene-vinyl acetate copolymer emulsion, 20-24 partsof boric acid, 36-38 parts of ammonium polyphosphate, 20-24 parts of guanylurea phosphate, 36-40 parts of pentaerythritol, 30-34 parts of melamine, 1.0-1.4 parts of sulfonated carbon, 3.6-4.0 parts ofzinc borate, 2.0-2.4 parts of ammonium octamolybdate, 16-20 parts of coating auxiliaries and 0-44 parts of pigment and filler. When heated, the expansive waterborne fireproof and flame-retardant coating is capable of greatly retarding the combustion of the wood material so as to prevent fire spreading; and the expansive waterborne fireproof and flame-retardant coating has good smoke inhibiting property and is capable of delaying the smoke generation time, reducing the release amount of smoke and the generation of poisonous gases and providing more safety time and space for escape and rescue of personnel under the condition of a fire hazard.

The invention discloses a circulated cooling water compounded scale inhibitor and a preparation method of the circulated cooling water compounded scale inhibitor. The circulated cooling water compounded scale inhibitor is prepared by weighing polyaspartic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, polyepoxysuccinic acid, amino trimethylene phosphonic acid, deionized water, sodium hexametaphosphate, a dispersing agent, polyhydric alcohol phosphate ester, organic polybasic phosphonic acid, acrylic acid-acrylic acid phosphonic hydroxypropyl acrylate and organic solvent according to a ratio in parts by weight. According to the circulated cooling water compounded scale inhibitor and the preparation method, disclosed by the invention, the content of phosphor in a water treatment agent is reduced, the generation rate of calcium phosphate scales is reduced, and the corrosion inhibition speed ranges from 0.001mm/a to 0.01mm/a; the scale inhibition rate is up to 98 to 100 percent; the expiration date is long, the circulated cooling water compounded scale inhibitor can be stored for one month under 60 to 70 DEG C, and the scale inhibition effect is up to 99 to 100 percent.

The invention relates to a method for remediating pollution of nitrate nitrogen in underground water, which mainly comprises the following steps: firstly, preparing Fe/Cu nanoparticles by liquid phase reduction step by step: under the protection of argon gas, reducing a FeSO4.7H2O solution with a KHB4 solution to prepare FeO nanoparticles, then introducing a CuSO4.5H2O solution into the FeO nanoparticles for continuously stirring for reacting, after reacting, washing the nano Fe/Cu solution with deoxidized and deionized water, and then, selecting the Fe/Cu nanoparticles by a magnetic method; secondly, introducing the deoxidized reaction solution into the prepared Fe/Cu nanoparticles for physically mixing simply; and finally, adding underground water containing nitrate nitrogen and sealing to carry out oscillating reaction. The method has high efficiency for remediating pollution of nitrate nitrogen in underground water, has simple required equipment and convenient operation, and provides a new way for remediating pollution of nitrate nitrogen in underground water with high efficiency and low cost.

Exemplary embodiments of the present invention disclose a method and system for reducing a probability of generating an unrecoverable error on a disk array during a disk rebuild. In a step, an exemplary embodiment identifies a disk to be replaced in the disk array, the disk array including a spare disk. In another step, an exemplary embodiment locates a region in the disk array that incurs a high number of reads and writes during a period prior to replacing the disk in the disk array. In another step, an exemplary embodiment scrubs data in a region in the disk array that has incurred a high number of accesses. In another step, an exemplary embodiment replaces the disk identified to be replaced with the spare disk in the disk array. In another step, an exemplary embodiment rebuilds data on the replaced disk on the spare disk in the disk array.

The invention discloses a precoated sand for casting, which comprises raw sand, an adhesive, a curing agent, a coupling agent and a plasticizer. The adhesive accounts for 2-3 wt% of raw sand, the curing agent accounts for 40-60 wt% of the adhesive, the coupling agent accounts for 0.5-0.8 wt% of the adhesive, the lubricant accounts for 40-60 wt% of the adhesive, the plasticizer accounts for 5-8 wt% of the adhesive, the raw sand comprises thermal reclaimed sand and ceramic foundry sand, and the ceramic foundry sand accounts for 30-100 wt% of the raw sand. The invention also discloses a preparation method of the precoated sand for casting. The precoated sand prepared according to the formula and preparation method has the characteristics of high strength, low gas yield and low expansion ratio, and can keep the shape. When being used for core shooting under preset conditions and used for pouring castings, the precoated sand can greatly lower the pore generation rate, ensures the structural stability of the sand mold (core) under the condition of casting, and can not easily deform, thereby ensuring the casting shape to satisfy the design requirement.

The invention discloses a ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent and a preparation method of the ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent. The preparation method of the polymer is as follows: putting 10-(2,5-dyhydroxyl phenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide into a reactor, adding a solvent,stirring for 5-10 minutes, adding an acid-binding agent; taking R1,R2'-ferrocene oxalyl chloride, adding the solvent, mixing, adding into the reactor dropwise, thermally insulating, stirring and reacting for 1-15 hours at the temperature of 0-50 DEG C under the protection of nitrogen after finishing adding dropwise; pouring a liquid obtained after the reaction into a precipitator while stirring, wherein the volume of the precipitator is 5-10 times that of the liquid, precipitating a yellow solid, carrying out suction filtration, washing a filter cake by using the precipitator, and drying to obtain the ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent. The ferrocene-DOPO biradical polyester type flame retarding and smoke suppressing agent can be used to retard flame and suppress smoke of high polymer materials like polyolefins and epoxy resins.

Polyester compositions, especially polyethylene terephthalate homopolymer and copolymers, are disclosed containing titanium catalysts and catalyst deactivator added late in the manufacturing processing having reduced acetaldehyde generation rates. The polyester compositions are low in free acetaldehyde, making them suitable for fabrication into beverage containers for relatively tasteless beverages such as bottle water. Furthermore, the polyesters are polymerized to a high inherent viscosity in reduced processing time, without the necessity of further polymerization in the solid state, and in the absence of acetaldehyde scavengers leading to polyester polymers having reduced color.

The invention provides a molybdenum disulfide/carbon composite material and a preparation method and application thereof. The preparation method comprises the following steps: taking water as a solvent at first; adding p-aminophenol, formaldehyde and ammonia water to prepare multilayered C hollow balls; regulating the amount of the water, 3-AP, the formaldehyde and the ammonia water to regulate and control the number of the layers of the C hollow balls; taking the synthesized C hollow balls as a framework, taking ammonium molybdate as a molybdenum source, taking thiourea as a sulfur source, and using a hydrothermal method to obtain a MoS2/C composite material. The preparation method is simple, safe in preparation process, low in energy consumption and high in operability.

In a gas introduction structure that is reciprocatingly movable in a predetermined direction, a processing gas introduction system is configured to introduce a processing gas into a processing chamber in which a substrate is subjected to a predetermined processing under a clean atmosphere; and a processing gas supply line is configured to be connected to the processing gas introduction system and an external processing gas supply source to supply the processing gas from the processing gas supply source to the processing gas introduction system, mutual relative positions of the processing gas supply source and the processing gas introduction system being changed. The processing gas supply line includes: a first bendable portion connected to the processing gas supply source; a second bendable portion connected to the processing gas introduction system; and a non-bendable pipe interposed between the first bendable portion and the second bendable portion.

The invention provides a lithium ion redox flow battery reactor. The lithium ion redox flow battery reactor comprises a bipolar diaphragm, a positive electrode flow deflector and a negative electrode flow deflector, wherein the flow deflector is formed by multiple flowing channel ridges in a concentric-square-shaped frame; the flow deflector is divided into multiple parallel flow diversion channels by the flowing channel ridges; a liquid inlet and a liquid outlet are formed in the flow deflector frame corresponding to the two ends of each flow diversion channels; and the adjacent positive electrode flow deflectors or the adjacent negative electrode flow deflectors are communicated in series on the same side through communicating structures. According to the lithium ion redox flow battery reactor, each battery reaction cavity is equipped with a group of liquid inlets and liquid outlets, and the electrode suspension liquid communicating structure, so that electrode suspension liquid does not need to pass through a flow division cavity and a flow confluence cavity, instead, the electrode suspension liquid directly enters the electrode reaction cavity, so that the flow division cavity and the flow confluence cavity are eliminated, the consistency among the battery units is effectively improved, the battery performance is improved, and the structure of the reactor is greatly simplified.