75 results about "General equation" patented technology

A printing apparatus for printing an image onto a recording medium based on input image data, comprises an electrostatic latent image carrier for forming an electrostatic latent image, and an exposure controller for forming the electrostatic latent image corresponding to one pixel upon exposure of the electrostatic latent image carrier with a combination of a plurality of different exposure amounts, wherein the exposure controller performs the exposure with the combination of the plurality of exposure amounts in a manner to satisfy a condition for an index value LNR expressed by a following general equation (1) using an optical density od (n) standardized on the condition of the maximum optical density equal to 1.0, identification information comb assigned to identify each combination of the plurality of exposure amounts, and the number of varieties m of a cumulative exposure amount used for modulation of the image data.LNR≤2 / m⁢⁢LNR⁡(comb)=∑n=0m-3⁢[{(od⁡(n+2)-od⁡(n+1))-(od⁢(n+1)-od⁡(n))}2] / (m-2).(1)

The invention discloses an antivirus local film-forming gel compound and the application of the gel compound, comprising the following weight-percentage components: 0.5 to 7 percent of hydroxyalkyl fibrin, 1 to 10 percent of esterifying agent, 0.5 to 5 percent of crosslinking agent, 0 to 5 percent of intensifier, 75 to 90 percent of menstruum and 0.1 to 5 percent of antivirus medicines; wherein, the crosslinking agent is a saturated fat polyol or alkyd which has the chemical general equation is CnH2n+2-m-l (OH) m (COOH) l, and n, m and l are whole numbers and n is more than or equal to m whichis more than or equal to 2, and l is more than or equal to 0, and m plus 1 is from 4 to 8 and n plus 1 is from 4 to 8. When the antivirus local film-forming gel compound of the invention is spread onto skin or a mucosa surface, a smooth, tough, wear-resistant and waterproof protection film can be formed. Compared with the existing various antivirus local agents, the film formed by the gel compound is characterized in that the preservation time is long and the medicine effect can be released for a long time. The formed gel film can be preserved for more than 7 hours on the skin surface and can be preserved for about 5 hours on the surface of the oral mucosa, with better anti local virus-infection of both skin and mucosa.