31 results about "Optimal density" patented technology

Provided are devices for bone tissue engineering, comprising a metal or metal-based composite member comprising an interior macroporous structure with porosity varying 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 engineered for a particular recipient subject. Engineered devices may 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 to promote cell in-growth. Additional aspects provide methods for bone tissue engineering, comprising use of a metal or metal-based composite member 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. Fabrication methods are provided.

A flooring tile having a plurality of sides, at least a top layer, a core layer comprising a densified foam material, and an exposed portion that extends outwardly along one side with a textured surface that imitates a grout line. The top layer of the tile can include a top surface defined by a wear layer, a polyvinyl chloride (PVC) layer having an optimal density and a dye or colorant(s), and a decorative layer. The exposed portion may be formed on the PVC layer below the top surface of the tile at a depth of about 0.9 millimeters (0.035 inches) to 2 millimeters (0.079 inches), or more, so as to extend into the core layer, and will have a width of generally between 2 millimeters (0.079 inches) to 5 millimeters (0.197 inches). The overall thickness of the tile ranges from 4 millimeters (0.157 inches) to 8 millimeters (0.315 inches).

An injection 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 injection 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.

An injection 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 injection 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 solid density of a printed matter. The method comprises the steps that a four-color step wedge is designed, and transfer specimen pages are obtained; the solid density, the density at a 75% dot area, an actual dot area at 50% of each of the specimen pages are measured, relative contrast and dot gain are calculated; a mathematical model of arelationship between the relative contrast, the dot gain and the solid density is established; and then a functional relationship between the dot gain and the solid density is found when the relativecontrast is maximum; and the dot gain is in the range of 15%-20% of a national standard, and the solid density corresponding to the closest set of data of the function is taken as the optimal solid density. When determining the optimal solid density, the method can ensure that the relative contrast is good, the dot gain is suitable, and a printed matter layer is fine and the color is bright.

The invention discloses a configuration method of a river-lake water body in-situ ecological purification system. The configuration method comprises the steps that changes of the concentrations of nutritive elements in a water body flowing across terrestrial vegetational zones in different widths are analyzed; according to removal effects of the nutritive elements such as N and P, terrestrial plants with water body purification effects reaching an expected value are confirmed by comparison; nutritive substances in various water plants and nutritive substances of the water body are determined before and after the water plants are cultivated; the water plants with the water body purification effects reaching the expected value are confirmed; according to the water body purification effects, the determined terrestrial plants and water plants are mixed and configured in vertical and horizontal directions; the width, the density and the gradient of constructed vegetation of the river-lake water body in-situ ecological purification system are optimized; and the minimum width, the optimal slope and the optimal density when the water body purification effect is optimal are selected. The river-lake water body in-situ ecological purification system constructed according to the configuration method has smaller floor area; the river bank substrate gradient modification projects are reduced greatly; the investment is low; and removal rates of N and P in the water body are better.

The invention discloses a hyperuricemia hepatocyte model and a construction method of the hyperuricemia hepatocyte model. The construction method comprises the following steps: (1) carrying out trypsin digestion on hepatocytes (LO2) in the logarithmic phase, thus preparing a cell suspension, after counting by adopting a blood counting chamber, diluting the hepatocytes till the concentration is 10<4>-10<6>pic / mL, and after paving on a board, carrying out culturing in a 5% (V / V) of CO2 cell culture box at the temperature of 37 DEG C; (2) after 12-24 h, taking out the pore board, adding the solution of adenosine with the use amount being 0.5-2 mmol / L, carrying out further incubation for 12-24 h; (3) adding 0.2-0.4 IU of xanthine oxidase into each hole, and carrying out further incubation for 12-24 h, thus obtaining the hyperuricemia hepatocyte model. The experimental result shows that the optimal density of cell pavement on the board is 10<6>pic / mL, and the optimal use mount of the inductor, namely, adenosine is 1.5 mmol / L. The obtained hyperuricemia hepatocyte model can be used for screening medicines for reducing uric acid, and has the advantages that the operation is simple, the needed time is short, and the efficiency is high compared with the hyperuricemia animal model.

The invention belongs to the field of breeding, and discloses a design method for fattening pig houses based on the analysis of pig behavior patterns based on big data. First, the big data flow of pig behavior is obtained through multiple experiments, and then the weight at slaughter and the total walking distance are obtained by analyzing the data flow. 1. The relationship between the total walking distance and the captive density, find the corresponding walking distance according to the best slaughter weight, and then find out the captive density corresponding to the total walking distance, that is, the optimal captive density. The present invention uses cameras and software to collect the total walking distance of the pigs, obtains the total walking distance of the corresponding pigs through the optimal slaughter weight, and then finds the corresponding captive density of the pig house where the corresponding pigs are located to find the best captive density; Incorporate the considerations of the pig house design, provide guidance for the rational design of the pig house, design a pig house that is more conducive to the life of the fattening pigs, and is beneficial to the fattening of the pigs.