439 results about "Dilution ratio" patented technology

A warewashing composition includes a cleaning agent having a detersive amount of a surfactant, an alkaline source in an amount effective to provide a use composition having a pH of at least about 8 when the use composition is measured at a solids concentration of about 0.5 wt %, and a corrosion inhibitor in an amount sufficient for reducing corrosion of glass when the warewashing composition is combined with water of dilution at a dilution ratio of at least about 20:1 water of dilution to detergent composition o form a use composition. The corrosion inhibitor includes a salt of calcium, magnesium, or a mixture of calcium and magnesium. The salt has a water solubility of less than about 0.5 wt % in water at about 20° C. and atmospheric pressure so that the salt precipitates to form a protective layer on a substrate in contact with the use composition.

Provided is a microfluidic device that can automatically perform various types of biological blood analysis. In the microfluidic device, a specimen is centrifugally separated and the centrifugally separated specimen is diluted into various dilution ratios. Also, at least two reagents that are required for one reaction and that need to be separately stored are stored in separate chambers, and they are mixed when a reaction is needed. Thus, various conventional blood analyzing reagents can be used as they are or after being minimally processed in the microfluidic device.

A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemical reservoir contains the chemical fluid and a bottle insert assembly for interfacing to the dispenser. The bottle insert assembly seals an opening to the reservoir when the reservoir is not inserted in the dispenser, preventing leaks. Also, the bottle insert assembly includes dual pickup tubes, each with a purge accumulator, to allow dual rate flow at the same or different dilution ratios as well as drawing back unused chemical fluids from the dispenser to avoid carryover or contamination.

The invention relates to a method for dispensing a beverage with the visual appearance of multi-layers obtained from dilution of concentrates in proper dilution ratios. A first liquid layer is first delivered with a controlled density. A second liquid layer is diluted to a density that is lower than the density of the first liquid layer so that the first and second layers form a stable layered arrangement with the second liquid layer of lower density remaining spatially above the first liquid layer to provide a visually distinct layer as compared to the first liquid layer in the container. The invention also relates to a dispensing device and to a machine readable program enabling the device to deliver the multi-layer appearance beverage according to the method of the invention.

The invention provides ways to determine the impact of diluting a solution wherein the diluting may be carried out for any of a variety of purposes. In one embodiment, the method enables accurate volume dispensation calculations independent of meniscus shape. In another embodiment, the method enables accurate determination of plate washing efficiency. In yet another embodiment, the method enables the accurate determination of dilution ratio over a plurality of dilution steps. The methods described may be carried out using one or more systems arranged to perform the steps. A kit of the invention includes instructions for carrying out the steps of the methods and, optionally, one or more solutions suitable for conducting photometric measurements.

The invention provides an operating method of spraying a pesticide by an unmanned aerial vehicle, which comprises the following steps: calculating parameters W and K of a spraying system and a spraying dosage P in a unit area, and transmitting W, K and P to a flight control system of the unmanned aerial vehicle through a ground station; obtaining a flight speed V of the unmanned aerial vehicle by a GPS (global positioning system) module; calculating a control voltage U of a liquid pump by the flight control system according to the parameters W and K of the spraying system, the spraying dosage P in the unit area and the flight speed V; and driving the liquid pump to work by the control voltage U of the liquid pump and spraying the pesticide through a nozzle. By adoption of the operating method, the control voltage U of the liquid pump can be calculated precisely according to the characteristics of different farm crops, pesticide types, a dilution ratio of pesticide, the spraying dosage P in the unit area and the flight speed V of the unmanned aerial vehicle, accurate control on the spraying flow is implemented, thereby making the pesticide spraying dosage in the unit area be uniform, improving the adaptation of spraying pesticides by the unmanned aerial vehicle and effectively reducing the waste of pesticides and the environment pollutions.

This invention relates to a method for reducing dot clouds of 3-D scanning, which carries out grid division to the dot-clouds, and the grid is the smallest exterior square body of a dot-cloud, the side length is L, then divides it into sub-grids with the side length of DalphaL3 / n along the directions of three coordinate axises, and alpha is the dilution ratio decided by the design, n is the dot number of the cloud, then dot set of the neighbour domain of Pi in the adjacent sub-grid of each dot KNB9Pi)={X1, X2apostrophe, Xn} is taken,takes the least square approximation plane of KNB9Pi) as the micro-cut plane S(Pi), takes Pi as the core of KNB(Pi), sets the distance from jth adjacent point of Pi to S(Pi) dj, and the distance to Pi lambdaj, then the function is fj(Pi)=dj / lambdaj, the curvature function of Pi is f(pi)=1 / kSigmafj(Pi) so as to obtain the curvature of every data point Pi, finally acquires the mean curvature in every small grid and gets the difference of the curvature of a point and the mean curvature and points smaller than the needed accuracy are selected as the points of the grid and others are deleted.

The present invention provides a feeding system for dispensing liquid food to a bird. The system includes a container of concentrated sugar solution that is dilutable with water at a selected dilution ratio of concentrate to water and a feeder to be supported by a support structure. The feeder includes a reservoir having a selected volume and an index marking correlating to a selected partial volume whereby the ratio of the partial volume to the difference between the selected volume and the partial volume is equal to the dilution ratio for the concentrate. The base of the feeder mounts to the reservoir and has at least one feed outlet to make the liquid in the reservoir available to the bird. The present invention is also directed to a method of providing nectar solution to hummingbirds.

The invention relates to a nanometer selenium probiotics composite leaf surface nutrient solution and application thereof in the production of selenium-enriched pears. A using method of the nanometer selenium probiotics composite leaf surface nutrient solution is characterized by comprising the following steps of: uniformly mixing and dissolving a nanometer selenium water solution with the concentration of 20 g / kg, L-lysine hydrochloride, sodium glutamate, humic acid, monopotassium phosphate, trace elements, brown sugar and EM (Effective Microorganisms) original liquid probiotic bacteria according to weight ratio; then diluting according to the dilution ratio of 1:(20-50) by adding water; and spraying on leaf surfaces for 3-4 times according to different growth periods of pear trees so asto obtain selenium-enriched Nanguo pears, selenium-enriched ussurian pears and selenium-enriched sharp stalk pears. Compared with the prior art, the invention not only enables the pears to be rich inselenium, but also increases the yield and enhances the quality, has integrated benefit, bright and smooth pericarp and fine and tasty sarcocarp, increases the saccharinity by 0.5-1.3 percent and theyield by 5-10 percent, prolongs the storage period by about 30 days and has the selenium content of 0.010-0.050 mg / kg, wherein the selenium content is 2-10 times more than that of a control group; and in addition, by adopting the invention, the selenium-enriched apples, the selenium-enriched peaches, the selenium-enriched grapes, the selenium-enriched cherries and the selenium-enriched strawberries can be produced.

The invention provides a sublevel opening stoping mining chassis route ore drawing subsequent filling mining method. The method specifically comprises the steps of conducting ore block structure dividing, stope preparation, cutting, stoping and ore removal operation and filling; and the step of conducting the above steps circularly until stope mining is completed. According to the method, compared with a traditional sublevel open stoping mining method, separated mining and separation of ores and rocks are facilitated, horse stone in ores can be effectively screened out, the dilution ratio of the ores can be greatly lowered, the quality of supplied ores is guaranteed, and the problem of difficult application and popularization caused by dilution and high loss rate in the process of slowly inclined ore body stoping existing in the traditional method is solved. Meanwhile, according to the method, during stoping, top and bottom pillars do not need to be reserved, and stoping barrier pillars also do not need to be reserved. Compared with the traditional method, the recovery rate of ores is high, stope preparation work amount is saved, and the cost is lowered.

A microfluidic device provided with a micro-channel structure capable of easily and positively providing therein micro-droplet having various dilution ratios. A micro-channel structure provided in a substrate (2) has a first mixing unit (11) and a second mixing unit (21) connected to the downstream side of the first mixing unit (11), with each mixing unit (11, 21) having first through third micro-channels. One end of a first weighing unit (11d) consisting of a micro-channel having a capacity equivalent to the volume of a specified-amount first micro-droplet is opened to a first micro-channel (11a), and the other end is opened to a merging unit (12a) provided on a second micro-channel (12). One end of a second weighing unit (13d) consisting of a micro-channel having a capacity equivalent to the volume of a specified-amount second micro-droplet is connected to a third micro-channel (13), and the other end is opened to the merging unit (12a). Any one of the first through third outlet ports of the first mixing unit is connected with the first or the third inlet port of the second mixing unit (21).

A multi-barreled sprayer for applying a diluted product such as a diluted cleaning solution to a surface for cleaning thereof and rinsing the diluted product from the surface by spraying a water-only rinse onto the surface from the sprayer. The sprayer can include a flow meter therein for providing a desired product dilution ratio. To provide different spray patterns for the water rinse or diluted product, the sprayer can include a shroud having shaped exit holes. The sprayer includes separate flow paths for the water-only rinse and the diluted product. The flow path for the diluted product includes a mixing chamber in which concentrated tablet product is diluted and mixed with water supplied by a garden hose, for instance. A rotatable valve allows selective application of water or diluted product. Additional embodiments include a trigger assembly that allows selective application of water for either of the water-rinse or diluted product application.

The present invention relates to a method for preparing a ceramic matrix composite material through a SiC nano-wire modified ceramic matrix composite material interface. The method comprises: immersing a porous fiber preform in a catalyst solution; in a CVD furnace, carrying out in-situ SiC nano-wire deposition by using methyltrichlorosilane MTS as a silicon source, using argon Ar as a dilution gas, and using hydrogen as a carrier gas, wherein the dilution ratio is 30-90; and preparing a SiC matrix by using a CVI process, using methyltrichlorosilane MTS as a silicon source, and using argon Ar as a dilution gas so as to obtain the compact SiC nano-wire modified ceramic matrix composite material, wherein the dilution ratio is 9-11. According to the present invention, the reinforcing and toughening mechanism of the SiC nano-wire is used to improve the mechanical property of the material; and the bending strength of the composite material adopting the SiC nano-wires as the interface is increased by 26.7% (Figure 6) compared with the PyC interface composite material under the same process, and the interface antioxidant property of the interface can be improved.

The invention relates to an indirect arc welding device between tungsten electrode and melting electrode and a welding method thereof, belonging to the technical field of material welding device and welding method, which is used to solve the problems in the prior arc welding devices, such as high hot input, low weld joint deposited ratio and high dilution ratio. The two ends of the welding wire are respectively connected with a wire feeder and a melting electrode welding torch, and exposed outside of the conductive mouth of the melting electrode welding torch. The welding wire is connected with a power supply, and the tungsten electrode welding torch and the melting electrode welding torch are connected respectively with the positive and negative electrodes of GTAW, and the axial point of the two welding torches is on the top of the weldment to be welded, and two protection gas cylinders are connected respectively with the protection gas inlets. Based on the device to weld in a certain welding process, turning on the arc generating switch, and using arc only generated between the tungsten electrode and melting electrode to quickly heat to melt the welding wire, and the droplet of the melted welding wire with heat heats the device indirectly and welds. The welding method has the advantages that the weld joint deposited ratio is increased up to 50g / min and the dilution ratio is controlled within 5%.

An internal combustion engine (10) for a vehicle comprises a fuel injector (12) which supplies fuel to a combustion chamber formed in a piston (1), and an oil pan which stores engine oil below the piston (1). With regard to a phenomenon whereby the engine oil is diluted with the fuel injected by the fuel injector (12), a controller (90) determines whether or not the engine oil needs to be regenerated (S13). When the engine oil needs to be regenerated, the controller (90) switches a cooling water path in the engine (10) by controlling an electrically controlled thermostat (74), and raises the temperature of the engine oil over a predetermined time period (S15, S17). As a result of this temperature increase, the fuel in the engine oil is vaporized, thereby reducing the dilution ratio of the engine oil, and thus the engine oil is regenerated.

The invention relates to a method for optimizing operating conditions of a cracking reaction in an ethylene cracking furnace. The method comprises the following steps: selecting outlet temperature and cracking feed load of the cracking furnace, as well as a steam-hydrocarbon ratio (or dilution ratio) as input variables of a process model of the cracking reaction; selecting an ethylene yield and a propylene-ethylene ratio (or total triene yield) which reflect the cracking degree as dependent variables of the model; establishing a neural network model of the ethylene cracking reaction process by taking actual production data of the ethylene cracking furnace and experimental data of an experimental cracking model as training samples; and further performing optimization calculation on the operating conditions of the cracking reaction to obtain the optimum operating conditions of the cracking reaction, thus maximizing yield of the ethylene or the triene in the cracking products under a load constraint satisfying the production requirements.

An SOF measuring system that can continuously measure SOF and a soot measuring system that can continuously measure soot are connected with an exhaust gas line. The soot measuring system comprises a diluter that selectively dilutes either one of the exhaust gas and standard gas whose hydrocarbon concentration is known with diluent gas and extrudes it. A dilution ratio adjusting device can adjust a dilution ratio of the diluter. A soot detector continuously detects soot in the exhaust gas or the standard gas diluted by the diluter. The SOF measuring system can be connected with the diluter so that an exhaust gas analyzer can measure the hydrocarbon concentration in the standard gas diluted by the diluter.

Provided are a microfluidic device, a method of analyzing a sample using the microfluidic device, and a method of measuring dilution ratios. The microfluidic device includes: a sample chamber which accommodates a sample to be tested; a dilution chamber which accommodates a diluent, receives the sample from the sample chamber, and provides a sample diluent; a first concentration detecting chamber which receives the sample from the sample chamber; and a second concentration detecting chamber which receives the sample diluent from the dilution chamber.

The invention discloses a high dilution ratio aqueous coating agent for PVC powder-free gloves; the coating agent is prepared by mixing the following materials by mass percentage: 40-80% of waterborne polyurethane, 10-40% of ylate emulsion, 0.1-1.5% of antifoaming agent, 0.05-5% of wetting flatting agent, 2-8% of anti-blocking slipping agent and 0.1-2% of water retention agent. Filling is not used in the coating agent, and high dilution ratio between 1:30-1:40 can be reached under the condition of moderate system viscosity, thus being more economical to use; the extinction effect is realized by applying compatibility limitation instead of filling so that when the coating agent is used to prepare the PVC powder-free gloves, diluted coating agent working solution can be kept stable for a long time without separation, thus being applicable to production.

Described are a method and system for diluting a sample in a liquid chromatography system. A sample flowing at a first flow rate is combined for a predetermined time with a diluent flowing at a second flow rate to generate a volume of diluted sample. The diluted sample has a dilution ratio determined according to the two flow rates. A portion of the volume is loaded into a sample loop of an injection valve and subsequently injected into a mobile phase flowing to a chromatography column. The method eliminates the need to have a technician available to perform dilutions or to transfer the sample to a remote location for dilution. Advantageously, manufacturing or processing downtime to perform the dilution is not required and the amount of sample flowing to waste is reduced.

The invention relates to an automatic calibration method. The method comprises the following steps of: a, introducing a gas sample into an analytical instrument and continuously analyzing the gas sample; b, when calibration is needed, switching a gas flow path to a calibration flow path by a control unit, controlling the flow of standard gas and diluent gas by the control unit, preparing calibration gas with specified concentration, and introducing calibration gas into the analytical instrument to obtain calibration data; and generating a new calibration result according to the calibration data; and c, switching the gas flow path to a gas sample flow path by the control unit, and continuously analyzing the gas sample by using the new calibration result until calibration is needed. The invention also provides an automatic calibration device. The invention has the advantages that: a dilution ratio range is wide, the volume is small, remote control and automatic calibration can be realized and the like.

The invention relates to an electro-magnetism weld deposit renovation and surface modification method for waste and old dies, comprising following steps: cleaning and preheating the waste and old dies, performing weld deposit on the portion of the waste and old dies where renovation and surface modification are needed by using an arc source weld deposit method adding impulse shooting flow electrical arc controlled by an externally-applied magnetic field; treating the dies to achieve a needed technique requirement. The invented method breaks off the two limits contradictory with each other which are high melt covering ratio and low dilution ratio of weld deposit, realizes effective cooperativeness and reasonable unification of weld deposit quality and efficiency, reduces cost of weld deposit and dies, and improves competitive power; resolves the contradictory problem of high hardness and low flexility in waste and old dies renovation field; protects electro-magnetism weld deposit novel heat source by using impulse revolving shooting flow gas innovationally, renovates the waste and old dies by utilizing characteristics of high efficiency, high quality, distortion and controllable temperature of the electrical arc heat source. The invention provides the related device also.

The invention provides a steeply inclined ore body room-and-pillar mining method, comprising the following steps: a traveling roadway is tunneled along the trend of the ore body; broken-ore troughs are tunneled in the traveling roadway at interval with the broken-ore troughs as junctions, two inclined shafts are tunneled toward the uphill direction to the top of a quarry; a rhombic ore block formed between the inclined shafts is mined from top to bottom in sequence; ore pillars are left in the rhombic ore block at interval; ores mined in the process of tunneling slip into the broken-ore troughs along the inclined shafts depending on self weight and then put into a mine car in the traveling roadway from the broken-ore troughs to be delivered; the tunneled inclined shafts in networked cross distribution can serve as a passage and an ore chute for the miners to go up and down and as a ventilation shaft and a workplace for rock drilling, ore breaking and blasting avoiding. The method is good in ventilation effect, safe, reliable, low in cost, simple in construction operation, high in ore recovery ratio and low in dilution ratio.

A solid particle counting system for measuring solid particle number concentrations from engine or vehicle exhausts in real-time includes an evaporation unit, a diluter arrangement, and a particle counter. The diluter arrangement mixes the dilution gas with the gases from the evaporation unit at a dilution ratio, and the diluter arrangement includes a flow meter located upstream of the evaporation unit for measuring the flow of gases into the evaporation unit which, in turn, flow into the diluter arrangement.

The invention discloses a rotary disc-type microfluidic concentration measuring apparatus and method based on luminosity detection. A rotary disc-type microfluidic chip, a luminosity detection device support and an AC servo motor are arranged in a hermetic darkroom; an output shaft motor shaft of the AC servo motor is vertically upward and is coaxially equipped with the horizontal rotary disc-type microfluidic chip; and N stages of test solution interinfiltration bands are arranged on the rotary disc-type microfluidic chip, each stage of test solution interinfiltration band is in the shape of a circular arc with the center of the rotary disc-type microfluidic chip as the center of circle, and two adjacent stages of test solution interinfiltration bands are connected through a spring-like test solution channel and communicated with each other. According to the invention, effective positioning of dilution concentration is realized through combined usage of the rotary disc-type microfluidic chip and rotary dilution positioning technology, so a dilution ratio is rapidly calculated; the accurate concentration of a to-be-measured solution is backwardly deduced by multiplying the dilution ratio by corresponding relationship between known optical length and absorbance produced at optimal concentration; and sample introduction, detection and concentration calculation are automatically carried out.

A stationary-source particle dilution sampling system is disclosed and belongs to the field of environment monitoring. The system comprises a smoke introduction system, a dilution staying system, a sample acquisition system and a control and data acquisition system. The system employs a three-grade injection type diluter which is capable of enhancing the mixing uniformity of smoke and a diluting gas and reducing the length of the dilution mixing segment, and the first-grade and second-grade diluters control the dilution ratio both by adjusting the flow rate and the pressure of the diluting gas.