31 results about "Optimal density" patented technology

Particular aspects provide novel devices for bone tissue engineering, comprising a metal or metal-based composite member/material comprising an interior macroporous structure in which porosity may vary from 0-90% (v), the member comprising a surface region having a surface pore size, porosity, and composition designed to encourage cell growth and adhesion thereon, to provide a device suitable for bone tissue engineering in a recipient subject. In certain aspects, the device further comprises a gradient of pore size, porosity, and material composition extending from the surface region throughout the interior of the device, wherein the gradient transition is continuous, discontinuous or seamless and the growth of cells extending from the surface region inward is promoted. Additional aspects provide a device for bone tissue engineering, comprising a metal or metal-based composite member/material comprising an interior porous structure, wherein the pore size, porosity and material composition is selected to provide a device having an optimal density and/or elastic modulus and/or compression strength for a specific recipient. Novel methods for fabricating the devices are also provided.

The invention discloses a method for obtaining the optimal solid density for coated paper printing. The method comprises the steps that 1, a CTP process control system is built, and the CTP device calibration work is finished; 2, a printer process control system is built, and the printer device calibration work is finished; 3, a printing test standard version is designed, a printing test is conducted through a standardized test method, and standard test specimen page is obtained; 4, data measurement is conducted on the density and chromaticity parameters of the specimen page; 5, according to the measured result, the optimal solid density for coated paper printing is calculated and obtained. According to the method for obtaining the optimal solid density for coated paper printing, on the basis of calibrating a CTP and a printer, the printing test is standardized, the eligible test specimen page is selected, the density and chromaticity values of a specimen paper designated color piece are measured, and a corresponding relation table for the chromaticity and density is built, so that the optimal density of the printed matter is rapidly determined, the defect that the optimal solid density is obtained through relative contrast is overcome, and accurate reappearance of color reproduction is achieved.

An ejection controlling device for an inkjet printer and a controlling method thereof includes determining whether an ink cartridge is installed in the inkjet printer, printing patterns in order by driving an ink ejection heater with an array of predetermined pulses with widths that vary in sequential order in response to the ink cartridge being connected to the inkjet printer, detecting printing densities of the printed patterns; determining the pattern with an optimal density among the printing densities, and storing the width of the pulse corresponding to the pattern with the optimal density as an optimal pulse width.

The invention discloses a method for determining optimal printing density. A control strip is added to a printed sheet, cyan, solferino, yellow and black on-site color lumps of ink regions on the control strip are detected in a scanning mode, spectral reflectance values of the color lumps are obtained, main density values and three stimulation values of each color lump are calculated, and a relation function between the main density value and the three stimulation values of each color is obtained through fitting; by means of the function relations between the three stimulation values and the main density value of the cyan color, the solferino color, the yellow color and the black color, the three stimulation values and chromatic values of each color are calculated circularly with the initial main density being 0.60 and the interval being 0.01 till the main density is 2.00, then color differences between the chromatic values and standard chromatic values are calculated, and when the chromatic value is minimum, the main density value is determined to be the optimal density value. The method solves the problems that in the prior art, a special printed sheet needs to be printed when the optimal ink amount is determined, and a lot of manual measurement and calculation are needed.

The invention provides a processing method and device of remote-sensing image data. The method comprises the steps that an earlier-stage remote-sensing image and a later-stage remote-sensing image are acquired, and according to the earlier-stage remote-sensing image and the later-stage remote-sensing image, an earlier-stage preset index image and a later-stage preset index image in a specific coordinate area and a difference image of the later-stage preset index image and the earlier-stage preset index image are generated; optimal density segmentation is carried out on the difference image; images obtained after segmentation are classified and marked. By means of the method, the changes of preset indexes (like the NDVI) of the earlier-stage remote-sensing image and the later-stage remote-sensing image can be automatically marked, and the problems that in the prior art, because the changes of ground objects can not be automatically identified based on the remote-sensing image data, marking workload is large, marking time is long and personal errors are large are solved.

A process for manufacturing ceramic tiles by ceramic powder pressing in cavities of a die provided with an isostatic punch a membrane of which rests on oil contained in adjacent and non-communicating chambers in continuous operation, characterised in that it comprises following operations: detection of a density of the powders pressed in a plurality of points n uniformly distributed in each area of a tile which plurality of points corresponds to a chamber of of the punch; performing a calculation of a mean of density readings taken at all the points in each area; comparing read values with a desired optimal density value; removing or, respectively, adding oil to each isostatic chamber of the punch if the mean of densities in the chamber is above or respectively below the optimal density value.

The invention provides a deployment method of a dense heterogeneous cellular network, belonging to the technical field of mobile communication. The method comprises the steps of first, calculating anassociation probability A<M> indicating that a user associates with an MBS layer, an association probability A<F> indicating that a user associates with an FBS layer, and an SINR<M> of the user in theMBS layer and an SINR<F> of the user in the FBS layer; second, calculating a coverage rate K and an average user rate R by using A<M>, A<F>, SINR<M> and SINR<F>; third, assuming that base stations are all in an activated state, calculating an average space power consumption (ASPC); fourth, resolving an optimal density Lambada <F,K> and a transmitting power P<F,K> of FBS under a condition that a target coverage rate is met; fifth, resolving an optimal density Lambada <F,R> and a transmitting power P<F,R> of FBS under a condition that a target average user rate is met; and sixth, selecting an optimal value from Lambada <F,K> and Lambada <F,R>, and selecting an optimal value from P<F,K> and P<F,R>. The base station density and the base station transmitting power are jointly optimized, so asto minimize the ASPC; and the method saves more energy than a solution optimizing only the base station density while delivering user services of high quality.

The invention relates to an ink control method and device for a printed matter. The method comprises the following steps: obtaining a preset number of printing proofs, wherein the printing proofs are determined according to the printing pressure, the type of printing oil, the use amount of paper and the inking amount; measuring and recording chromatic values and density values of the printing proofs; establishing a relation model between the chromatic values and the density values which are obtained through measurement, and calculating the optimal density value based on the minimum chromatic aberration; determining at least one candidate density value within a density value standard range according to the optimal density value, and calculating a derivative value of a chromatic aberration function corresponding to each candidate density value; and increasing or decreasing the current ink amount according to the obtained derivative values of the chromatic aberration function. The ink control method provided by the invention can accurately judge whether to increase or decrease the ink amount at the present, so that the printing quality of the printed matter is improved, and the cost in a printing process is saved.

The invention discloses a high-precision gas density relay. The high-precision gas density relay comprises a signal mechanism and an indicating value display mechanism connected with the signal mechanism and positioned outside the signal mechanism, wherein the signal mechanism comprises a sealed gas chamber defined by a chassis, a shell and a bottom plate, a corrugated pipe assembly positioned inthe sealed gas chamber and an alarming assembly; and switch-on or switch-off of the alarming assembly is controlled by a pressure difference between gas pressures in the sealed gas chamber and the corrugated pipe assembly. The high-precision gas density relay provided by the invention is provided with gas compensation and temperature compensation elements, so that the high-precision gas density relay and the optimal density monitoring can be realized; in addition, by arrangement of a temperature sensing bag, the density relay is more suitable for electrical equipment meeting a condition that atemperature difference between a mounting position of the density relay and an electrical equipment body is high; moreover, the density relay consists of a few modules, so that combinational production and individual design can be performed conveniently; and furthermore, the product adaptability can be improved to the maximum extent, and the relay can be popularized and applied very easily.

The invention discloses a low-Yang-modulus submersed nozzle lining material and belongs to the field of functional fire-resistant materials for continuous casting in the ferrous metallurgy industry. The low-Yang-modulus submersed nozzle lining material is characterized in that the Yang modulus of the nozzle lining material is lower than that of a produced steel base body, specifically, the dosingcompositions comprise 90-95% of magnesium oxide and 5-10% of phenolic resin to serve as a binding agent. The particle size of magnesium oxide is 0.1-1.0 mm, the density of magnesium oxide particles does not surpass 3.35 g/cm3, the optimal density range is 3.0-3.3 g/cm3, and the thickness of a lining is 3-8 mm. According to the material, the Yang modulus of the lining material is lower than that ofthe steel base body, the lining material can be crushed in the drawing process, and breaking of ultra-deep drawn wires due to melting loss and falling of fire-resistant materials can be reduced remarkably.

The invention discloses a plantation method of improving Glabrous sarcandra herb yield and index component content and belongs to the technical field of plant plantation. Based on researches and exploration on key technologies of plantation density, illumination intensity, plantation slope direction and fertilizer of the of Glabrous sarcandra herb, a plantation method of improving Glabrous sarcandra herb yield and index component content is preferentially selected, in which, the optimal density is two plants of the Glabrous sarcandra herbs in each cave with a specification of 50cm x 50cm; the average illumination intensity of 2,000Lx to 3,500Lx is advisable; and a slope in a southeast direction is preferentially selected according to practical conditions of the land resource, and application of farmyard manure (150 to 200kg/mu) is optimal. Guarantee and technical support are provided for standard and industrial plantation of Glabrous sarcandra herbs.

The invention relates to an intelligent sensitization adjusting system and method. The system is applied to a field mixed loading truck. The field mixed loading truck comprises a latex matrix conveying device for conveying a latex matrix, a sensitizing agent conveying device for conveying a sensitizing agent, and a mixer for mixing the latex matrix and the sensitizing agent. The system comprises atemperature sensor, a signal amplifier and a processor. The temperature sensor is arranged on the latex matrix conveying device and used for detecting the temperature of the latex matrix, and temperature signals are generated and sent to the signal amplifier to be amplified. The processor is used for controlling the flow of the sensitizing agent conveyed by the sensitizing agent conveying deviceaccording to the temperature signals amplified through the signal amplifier. The flow of the sensitizing agent is automatically adjusted according to the temperature of the latex matrix, sensitizing agent adjusting accuracy and efficiency are improved, accordingly, the field mixed loading emulsion explosive reaches the optimal density, and the best explosive capacity is brought into play.

The invention belongs to the technical field of road engineering materials and in particular relates to a novel sisal fiber graded broken stone mixed material and a preparation method thereof. The novel sisal fiber graded broken stone mixed material is prepared from 93.2-94.5% by mass of graded broken stone, 0.5-0.8% by mass of a sisal fiber and 4.5-6% by mass of water. The preparation method comprises procedures of selecting materials, stirring the materials, adding the fiber, confirming an optimal water content and an optimal density, adding water, performing stirring, and the like. The novel sisal fiber graded broken stone mixed material has the advantages of being good in performance, high in anti-shearing strength, good in plastic deformation resistance and low in preparation cost.