155results about How to "Improve quality score" patented technology

Methods and systems disclosed herein relate to keyword discovery tools for populating a private keyword database. Keyword discovery relates to continuously and automatically in incrementing a working keyword data set for new periods of time based on retrieval of at least one of new traffic-generating keywords and new suggested keywords. Related user interfaces, applications, and computer program products are disclosed.

Embodiments of the invention provide methods and systems for authenticating an enrolled uses of a biometric authentication and / or identification system having an exception mode, in which the enrolled user submits a temporary password during authentication. The temporary password is only generated if the enrolled user's identity is verified and the person authorizing a change to the exception mode submits a valid biometric identifier.

A method for improving a stereo image including a left view image and a right view image, comprising: using a data processor to automatically analyze the stereo image to determine an original stereo quality score responsive to relative positions of corresponding points in the left view image and the right view image; specifying a set of one or more candidate modifications to the stereo image; determining revised stereo quality scores based on each of the candidate modifications to the stereo image; selecting a particular candidate modification that produces a revised stereo quality score which indicates a higher quality level than the original stereo quality score; forming an output stereo image corresponding to the selected particular candidate modification; and storing the output stereo image in a processor-accessible memory.

Embodiments of the invention provide methods and systems for securely transmitting a biometric identifier template across a network using a transport unit formed by appending a trusted time-stamp to the biometric template, and for authenticating such templates based on the time stamp. The method is applicable to fingerprint and other biometric identifier based identification and authentication systems.

The present invention relates to a system and methodology to facilitate automated quality management and controls for one or more items appearing in a documentation set. Respective items are analyzed in accordance with a plurality of quality metrics that can be tracked according to an automated identification process. A system is provided that facilitates quality measurements of data and / or documents appearing in a documentation set, collection or database. A quality component tracks one or more quality metrics associated with the items, wherein the items can include topics, subtopics, or other categories. A rules engine automatically applies the quality metrics to the items to facilitate interactive quality assessments of the items, wherein a scoring component automatically ranks the items based at least in part on the interactive quality assessments of the items.

The invention discloses a titanium dioxide sol and a coating type denitration catalyst. The titanium dioxide sol is prepared from a titanium dioxide precursor, a dispersing agent, organic chelating agents, alcohol solvents, deionized water and auxiliaries, wherein the organic chelating agents include one or two of acetylacetone, tert-butyl ketone and 1,3-diphenyl-1,3-propanedione, the alcohol solvents include one or two of methanol, ethanol, isopropanol and n-butanol, and the auxiliaries include one or two of methylcellulose, polyethylene glycol-400, sodium dodecyl sulfate, hexamethylene tetramine, tetrahydrofuran and ethanolamine. A substrate of the coating type denitration catalyst is made of cordierite honeycomb ceramics, and the substrate is coated with active components of a vanadium-tungsten impregnation solution, an iron-cerium impregnation solution or a manganese-cerium impregnation solution with the titanium dioxide sol as a carrier. The grain size of the titanium dioxide sol is at the nanometer level. A coating formed by the coating type denitration catalyst has high bonding fastness, coating capacity and solid content.

A method for improving the unfreezing quality of fast frozen fruit and vegetables with low-frequency ultrasonic belongs to the processing technical field of fruit and vegetable food. The present invention adopts ultrasonic for freezing in the process of fast freezing; the process is that the raw materials of fruit and vegetables are selected, cleaned and burnt to kill the enzyme; and then the materials are cooled, refrigerated and frozen with ultrasonic; at last the materials are packed up. The present invention adopts the process that the ultrasonic processing is combined in the process of dipping and freezing fruit and vegetable and improves the unfreezing quality of the fast frozen fruit and vegetables; the present invention is characterized by a short freezing time, excellent initial shape maintenance and low operational cost.

The invention discloses a preparation method of cellulose fibres, which comprises the following steps: 1, smashing cellulose into fine particles, wherein the cellulose is selected from wood pulp, cotton pulp or bamboo pulp with polymerization degree of 400-1,000; 2, uniformly mixing the cellulose particles with a plasticizer, and then feeding the mixture into a double-screw extruder, and preparing a spinning melt, wherein the mass ratio of the cellulose to the plasticizer is 3-6:7-4, the plasticizer is imidazole-based ionic liquid, or the mixed liquid of imidazole-based ionic liquid and morpholine-based ionic liquid, and the mixed liquid contains the same anions; 3, melting spinning, wherein the spinning speed is 5-100m / min, extract liquid is ionic liquid water solution with the mass of 0 to 20%, the temperature is 20- 90 DEG C, the stretch ratio is 0.2 to 5 times, the stretch bath temperature is 40-90 DEG C, and the spinning air gap is 5-20cm; and 4, washing, bleaching, oiling and drying spinning fibres to obtain the cellulose fibres.

The invention provides a copper sulfide anode and a preparation method thereof, solving the problems of the conventional copper sulfide electrode that the bonding force of active substances and current collectors is poor and the anode conductivity is lowered because of a binder and also solving the problems of the integrated copper sulfide electrode which is synthesized in situ in a solution that the quantity of active substances is small and the preparation period is long. The copper sulfide anode is prepared by the following steps: uniformly spreading elemental sulfur which is prepared according to the sulfur carrying amount of foamy copper is 0.03-0.3g / cm<2> on the foamy copper, putting into a furnace, and carrying out in-situ reaction under a protection gas at a temperature of 155-350 DEG C so as to obtain the laminated copper sulphide which takes a foamy copper three-dimensional network structure as a framework, namely an integrated porous copper sulphide anode. By utilizing the copper sulfide anode, the application of the three-dimensional structured integrated porous anode in a lithium battery is widened, the energy density of a lithium battery anode is improved, and the performances of a lithium battery are improved. The copper sulfide anode is simple in preparation process, low in equipment requirement, low in cost and convenient for industrial production.

The invention discloses a high-flame-retardancy paint which is prepared from a water-based acrylate emulsion, a water-based polyurethane resin, aluminasol, an epoxy resin, polydimethylsiloxane, zinc oxide, hollow glass microspheres, nano zirconium oxide, montmorillonite, nano silicon dioxide, a film forming aid, a defoaming agent, a leveling agent, a wetting agent, a flame retardant and water. The flame retardant is formed by mixing boron oxide, dimethyl methyl phosphonate, phosphorus pentoxide, tri(2-chloropropyl) phosphate, guanylurea phosphate, ammonium polyphosphate, pentaerythritol, melamine and hexamethyl disiloxane. The high-flame-retardancy paint has the advantages of favorable water resistance, favorable wear resistance, excellent flame retardancy and long service life.

The invention discloses a method for preparing an environment-friendly polyurethane adhesive for a plastic track. According to the method, polyether polyol and aromatic diisocyanate serve as raw materials, chlorinated paraffins and dibutyl phthalate serve as auxiliaries, white carbon black serves as packing, organotin serves as a catalyst, and the environment-friendly high-performance polyurethane adhesive for the plastic track is prepared through a prepolymer method. The prepared adhesive is moderate in system viscosity in the preparation process, the temperature can be controlled easily, and the adhesive is good in product quality, stable in performance and high in yield and room temperature bonding strength. After the adhesive is evenly mixed with rubber particles according to a certain proportion and compressed, a sample is very excellent in mechanical property, and the surface drying time and curing time are short. The adhesive is low in volatility, non-toxic and free of pungent smell, does not cause damage to constructors and users, is good in breathability and conforms to the environmental protection and construction requirements.

The invention relates to the technical field of X-ray fluorescence analysis, aims at overcoming the defects that the measurement results of an existing X-ray fluorescence measurement system and methodcan be easily influenced by fluctuation of performance of an instrument and the existing X-ray fluorescence measurement system and method are not applicable to measurement on mass thickness of a thinlayer taking metal elements as major components, and provides X-ray fluorescence thin layer mass thickness measurement system and method based on a reference element. The measurement system comprisesan X-ray tube, a collimator, a detector, a base and a control terminal, wherein the input terminal of the collimator is connected with an exit portal of the X-ray tube, and a tungsten pinhole is formed in the output terminal of the collimator; the control terminal is respectively electrically connected with the X-ray tube and the detector; a reference layer containing the reference element is pasted and placed on the surface of the substrate, and the surface of the reference layer is used for placing a standard sample layer or a to-be-measured sample layer; the X-ray tube is used for emittingX rays, and the base is located on a light path of the X rays; the X rays vertically irradiate the reference layer after passing through the collimator and the tungsten pinhole; and the detector is used for receiving X-ray excited fluorescence.

The invention provides a W / O microemulsion with stable properties and a particle size less than 100nm. The weight of the W / O microemulsion is taken as a standard, the W / O microemulsion comprises, by weight, 10 to 42% of a complex emulsifier, 2 to 40% of an aqueous solution, and the balance isopropyl myristate; the complex emulsifier is made from Span80 and Tween80 at a weight ratio of 1.02-1.27:1; and the aqueous solution is formed by water and ethanol at a weight ratio of 1-3:1. The invention also provides a preparation method and applications of the W / O microemulsion. The preparation method of the W / O microemulsion is simple; and the W / O microemulsion is an excellent carrier of active substances or functional substances which possess poor stability and lipid solubility, and are represented by tea polyphenol, and is capable of increasing stability of the active substances or the functional substances in food and medicinal preparations, and improving slow release behavior of the active substances or the functional substances.

The invention discloses a marine diesel engine waste heat recovery system based on combination of thermoelectric power generation and the organic Rankine cycle, and a method thereof. The marine dieselengine waste heat recovery system comprises a diesel engine intake subsystem, a diesel engine cooling subsystem, an exhaust gas flow path, a TEG subsystem, an ORC subsystem, a seawater cooling subsystem and an electronic control center. A thermoelectric generator is arranged between the exhaust gas flow path and the diesel engine cooling subsystem to form the TEG subsystem, and the temperature differences between the exhaust gas flow path and the diesel engine cooling subsystem are used for generating electricity; the ORC subsystem and the exhaust gas flow path exchange heat through an ORC evaporator; the ORC subsystem converts thermal energy into electrical energy sent from a generator coaxially connected with an expander through a thermodynamic cycle; the seawater cooling subsystem is used for ultimately condensing ORC working media and diesel engine coolants; the electronic control center is part of a diesel engine ECU, and is used for controlling the driving loop. The marine diesel engine waste heat recovery system has the advantages that the exhaust gas waste heat of a diesel engine and the temperature differences between exhaust gases and the coolants are fully utilized, thewaste heat is recycled and converted into the electric energy for ships and other electrical equipment, and accordingly, the energy conversion efficiency of diesel oil is further improved.

The invention relates to a 0.002 mm temperature-tolerance decoration foil and a preparation method thereof. The decoration foil is characterized by being made by adding 0.10-0.20 percent by weight of Cu element on the basis of 8011 alloy. The preparation method comprises the following process procedures: cold-rolling a cast-rolling plate into 0.44-0.85 mm from 6.0-10.0 mm, adopting an H22 status for interannealing, cold-rolling to 0.28-0.60 mm, foil-rolling to reach a finished thickness of 0.022 mm, and slitting, wherein the H22 status annealing process comprises the following steps: adopting a burner-gas temperature controlling way for annealing, namely, charging below 100 DEG C, heating 1.5 hours till the temperature reaches 350-450 DEG C, and preserving the temperature for 5-15 hours; cooling for 0.5 hour till the temperature reaches 320-380 DEG C, preserving the temperature for 5-15 hours, cooling for 1.5 hours till the temperature reaches 200 DEG C, and discharging; and achieving the total processing ratio being more than 95 percent after interannealing. The invention has good temperature tolerance and stable quality.

The invention discloses a phase change material microcapsule coated by thermoset phenolic resin and a preparation method thereof. The capsule uses a phase change material as a capsule core and the thermoset phenolic resin as the capsule wall. The mass ratio of materials of the microcapsule is that 20-75% of the phase change material, 0.5-3% of an emulsifying agent, 2-10% of a catalyst, 20-60% of thermoset phenolic resin prepolymer and 0.2-10% of a reaction terminating agent. The preparation method comprises heating and melting the phase change material, mixing the phase change material with the emulsifying agent, distilled water and the catalyst to form emulsion, heating the emulsion to 40 DEG C to 80 DEG C, dropwise adding the thermoset phenolic resin prepolymer, keeping constant temperature for 20-100minutes after finishing dropwise adding, adding the reaction terminating agent, adjusting the potential of hydrogen (pH) to about 7.0 with organic acid or inorganic acid, vacuumizing to evaporate moisture, and obtaining the phase change material microcapsule coated with the thermoset phenolic resin. The particle diameter of the phase change material microcapsule ranges from 0.5mum to 4mum. The phase change material microcapsule can be used for manufacturing building materials, thermal storage thermoregulation textiles, crop growth protection agents and the like.

The invention discloses an O / W type conjugated linoleic acid micro emulsion carrier and a preparation method thereof, belonging to the field of food technology. The micro emulsion carrier comprises the following components in percentage by weight: 1%-30% of mixture, 1-13% of conjugated linoleic acid and 57-98% of water, wherein, the mixture is composed of the following components according to the mass ratio of 1:1:1:1: Tween 80, EL35, alcohol and n-caprylic alcohol. The preparation method of the micro emulsion carrier comprises the following steps: under the condition of continuously stirring, the mixture composed of Tween 80, EL35, alcohol and n-caprylic alcohol is added in a mixed kettle in percentage by weight firstly; then the conjugated linoleic acid is added; and finally, water is added to obtain a clear, transparent and even system, namely the required micro emulsion carrier. The invention not only solves the difficulty of low solubility of conjugated linoleic acid in water, but also greatly improves the stability of the conjugated linoleic acid.

The invention relates to a method for preparing a low-free curing agent with the solid content of 75% by synthesis of 65 / 35 toluene diisocynate (TDI). The method is characterized by comprising the following steps of: (1) reacting the TDI with trimethylolpropane (TMP) in a reaction solvent at 70+ / -5 DEG C to obtain a prepolymer; (2) adding 2,4,6-tris(dimethylaminomethyl)phenol, namely a trimerization catalyst, to the prepolymer when the weight percentage of a free NCO group is detected to be 15%-16%, and adding phosphoric acid, namely a trimerization inhibitor, to the prepolymer for stopping reaction when the weight percentage of the free NCO group is reduced to 14%-15%; and (3) after 2, 6-butylated hydroxytoluene, namely an antioxidant, is added, diluting a prepolymer by a general solvent for polyisocyanates to discharge when a prepolymer curing agent is changed into transparent liquid, when the complete reaction is finished within 2.5h-4h. The obtained environmental-friendly coating curing agent with low-free TDI and high solid content has the excellent characteristics of high gloss of a coating film as well as high elasticity and toughness, and greatly reduces toxicity and transportation costs.

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 relates to a novel method for improving fruit and vegetable unfreezing quality. According to the invention, ultrasonic waves are adopted for assisting in freezing in the quick freezing process of quick-frozen fruits and vegetables. The method comprises the steps of selecting, cleaning, cutting, bleaching and heating for inactivation of enzyme, cooling, freezing, freezing with the assistance of the ultrasonic waves, and packing fruits and vegetables as raw materials. According to the invention, the technology of treatment with the combination of the ultrasonic waves is adopted in the fruit and vegetable immersing and freezing process, thus the fruit and vegetable unfreezing quality is improved; and the novel method has the characteristics of shortening of freezing time, good keeping of initial shape, low operation cost and the like.

The present invention relates to a system and methodology to facilitate automated quality management and controls for one or more items appearing in a documentation set. Respective items are analyzed in accordance with a plurality of quality metrics that can be tracked according to an automated identification process. A system is provided that facilitates quality measurements of data and / or documents appearing in a documentation set, collection or database. A quality component tracks one or more quality metrics associated with the items, wherein the items can include topics, subtopics, or other categories. A rules engine automatically applies the quality metrics to the items to facilitate interactive quality assessments of the items, wherein a scoring component automatically ranks the items based at least in part on the interactive quality assessments of the items.

The invention relates to a method for concentrating at low temperature and pretreating concentrated solution. The method mainly comprises the following steps: 1, preparing mass percentage of formaldehyde solution for reacting to be between 3 and 15 percent; 2, adding frozen diluted formaldehyde solution into a concentration autoclave; 3, adding n-butyl aldehyde and alkali metal hydroxide solution into the autoclave by two parts for two times; 4, dripping methanoic acid into concentrated solution; 5, pumping the acidified concentrated solution into a formaldehyde stripping tower to remove formaldehyde, methanol and partial water; and 6, pumping distillate into a dealcoholizing tower if the mass percentage of the methanol in the distillate obtained in the step five exceeds 2 percent, and distilling the methanol thereinto under normal pressure condition. The concentrated solution obtained through low temperature concentration, step feed and pressurized formaldehyde stripping / dealcoholizing pretreatment has high selectivity, can effectively prevent the formaldehyde, the methanol and the like from reacting with trimethylolpropane in subsequent separating and refining processes and generating unexpected byproducts, thereby improving the quality and the yield of the trimethylolpropane.

The invention relates to an automobile beam steel plate with tensile strength of 750MPa grade and heavy gauge, and a preparation method of the automobile beam steel plate. The steel plate comprises, by mass, 0.03 to 0.12% of C, 0.05 to 0.60% of Si, 0.2 to 1.0% of Cr, 1.0 to 2.5% of Mn, not greater than 0.015% of S, not greater than 0.025% of P, 0.015 to 0.045% of Als, 0.07 to 0.15% of Ti, 0.02 to0.08% of Nb, and the balance being Fe and impurities that are unavoidable during smelting. During preparation, a steel billet adopting the above chemical composition proportion is subjected to reasonable process design, so as to prevent the pickling preparation process from replacing the original process, reduce the thickness of the scale, and obtain the scale complex structure of Fe3O4, FeO and eutectoid Fe3O4 coexisting with alpha-Fe, so that the surface quality of the steel plate is significantly improved, and the requirements of the use of pickling-free direct stamping or roll forming andeliminate the pickling process can be met, production efficiency is improved, environmental pollution is reduced and production cost is reduced.

The invention discloses a screening device for preparing nanofluids. The screening device for preparing the nanofluids comprises a flow channel, a fixed screen plate, a dynamic screen plate, an upper peristaltic pump and a lower peristaltic pump, wherein the dynamic screen plate is closely adhered on the fixed screen plate; screen holes in the fixed screen plate are aligned with screen holes in the dynamic screen plate; the circumferential size of the fixed screen plate is equal to the circumferential size of the flow channel; the circumferential size of the dynamic screen plate is less than the circumferential size of the flow channel; gaps are formed in the dynamic screen plate; grooves are formed in the upper part of the fixed screen plate; the gaps in the fixed screen plate correspond to the grooves in the fixed screen plate; the dynamic screen plate and the fixed screen plate divide the flow channel into an upper layer flow channel located above the dynamic screen plate and a lower layer flow channel located below the fixed screen plate; the upper peristaltic pump is connected with two ends of the upper layer flow channel; and the lower peristaltic pump is connected with two ends of the lower layer flow channel. The screening device can remove poorer-dispersity nano-agglomerates parts contained in nano-particles; meanwhile, the invention also discloses a method for preparing the nanofluids; and with the adoption of the method, obtaining of the mass fraction of required nano-particles can be guaranteed and the dispersity of the nanofluids can be improved.

The invention discloses a low-cost and high-performance copper-graphite composite electric brush. The brush is first stirred and mixed from graphite powder, copper powder, silicon powder and asphalt binder raw materials through the traditional powder metallurgy copper-graphite brush process. It is made by a post-pressing and re-sintering process. The process and material cost of the invention are low, the brush performance is significantly improved, and it can meet the usage requirements of brushes for commutators and collector ring motors.

Computer-implemented method and system for optimizing a finite element mesh. Computing devices are configured to calculate a quality score for at least one original element in a finite element mesh based upon two or more quality attributes simultaneously. A quality score for at least one substitute element for the original element is calculated based upon the two or more quality attributes. If one or more substitute element(s) have a quality score that is better than the quality score of the original element(s), the original element(s) is / are replaced with the substitute element(s) having the best quality score. A quality score may be calculated for each of a plurality of combinations of one or more substitute elements. Input may be provided specifying at least one quality threshold value for comparing the two or more element quality parameters (skew, warp, aspect ratio, etc.).

The invention relates to the technical field of extraction and refinement of flavonoids compounds in highland barley seedlings, in particular to a process for extracting and refining flavone in highland barley seedlings by enzymolysis-membrane ultrafiltration. The process comprises the following six steps: pretreatment, beating, enzymolysis, extraction, ultrafiltration and drying; wherein in the step of pretreatment, fresh highland barley seedlings with the growth height of 25-40cm are cut; the weight ratio of cellulose to the highland barley seedlings is 1: 100-1000, the temperature is 30-60DEG C, the PH value is 3.5-6, and the stirring time is 0.5-4 hours; in the step of extraction, the weight ratio of highland barley seedling slurry to ethanol of 40-95 percent is 1: 3-10, reflux extraction is carried out for 1-3 hours, and extract obtained in twic is emerged; and in the step of ultrafiltration, the extract is respectively micro-filtered by microfiltration membranes of 1, 0.5 and 0.1mu m, micro-filter filtrate is ultra-filtered by the ultrafiltration membranes, the operating pressure is 0.15-0.25MPa, the temperature is 25-45DEG C, the ultra-filter filtrate is ultra-filtered by the ultrafiltration membranes, the operating pressure is 0.15-0.25MPa, the temperature is 25-45DEG C, and the filtrate is collected. The process is convenient, and the flavone has high yield, high purity and remained activity.

The invention discloses a green environmental protection low-temperature impact-resistant PVC-U electrical casing. The green environmental protection low-temperature impact-resistant PVC-U electricalcasing comprises the following raw materials in parts by weight: 90-110 parts of PVC resin, 4-6 parts of calcium-zinc composite stabilizer, 6-10 parts of AMB resin, 0.1-1 part of PE wax, 0.1-1 part ofstearic acid, 10-30 parts of inorganic filler, 2-4 parts of processing modifying aid and 2-3 parts of titanium dioxide. As the new calcium-zinc stabilizer replaces the traditional lead salt stabilizing system and the toughening modified ternary copolymer resin (AMB resin) is added, the low-temperature performance is obviously improved compared with the traditional PVC electrical casing, the product still has good toughness at minus 15 DEG C, and meets the construction requirements of the cold market place in the north; compared with the traditional CPE toughening system, the AMB resin dispersed sea-island energy absorption toughening system has obvious advantages, the sea-island energy absorption toughening system can maintain good rigidity at higher temperature. The products are environmental protection green building materials, more in line with modern home decoration requirements.

The invention relates to a refining method of alpha, alpha'-dinitroanthraquinone. The method comprises the following steps: carrying out a dinitration reaction on anthraquinone under the effect of a low ratio of sulfuric acid and a high ratio of nitric acid at a low temperature, and distilling concentrated nitric acid at 60-75DEG C in a vacuum condition after completing dinitration reaction the according to a method disclosed in a patent of CN101423477A; slowly cooling materials to a temperature of below 35DEG C when the nitric acid distillation is finished, keeping the temperature for 1h, and precipitating alpha, alpha'-dinitroanthraquinone through crystallization; and filtering a mixture, beating a filter cake in water, refiltering, washing to the pH to above 5, and drying to obtain high quality alpha, alpha'-dinitroanthraquinone. According to the method of the present invention, the distillation amount of concentrated nitric acid can be conveniently controlled to adjust the concentration of nitric acid in a system, so alpha, alpha'-dinitroanthraquinone can satisfy quality requirements; crystallization is carried out below 35DEG C, so generated coarse crystals of alpha, alpha'-dinitroanthraquinone are easy to filter; and the concentration of nitric acid is low in filtering, so operating environment is substantially improved.

The invention belongs to the technical field of materials, specially relates to preparation and applications of a composite phase-change material, particularly to a composite phase-change material using a macromolecule material as a skeleton, and provides a composite phase-change material preparation method, which comprises: loading a phase-change functional material onto a PVA aerogel as a framework material to obtain the composite phase-change material. According to the invention, the composite phase-change material prepared by the method has ultrahigh phase-change material content, whereinthe mass fraction of the phase-change material in the composite phase-change material is 94%; and the PVA aerogel has proper pore size and large specific surface area, and has good interaction with the phase-change material, so that the obtained aerogel has super-strong anti-leakage performance on the organic phase-change material, wherein the PEG phase-change material cannot leakage after being heated for 60 h at a temperature of higher than the melting point of 40 DEG C, so that the comprehensive performance is obviously superior to the comprehensive performance of the existing phase-changematerial.