Thus, bottom roughness of a relatively small scale leads, on average, to increased attenuation of a sound signal when propagating in a waveguide, and this can occur at relatively short distances from the source. An increase in the reflectivity of a rough bottom boundary weakens the effect of ...
A new procedure to determine simultaneously a horizontal descriptor of the surface - the autocorrelation width - and the most important vertical descriptor - the root-mean-square roughness - is presented. It is based on the inversion of an analytic contrast formula. After a short introduction to ...
aShotblasting condition to comply with Sa2.5 standard. Result of roughness (45~75microns) and density (minimum 95%) are acceptable. Cleanliness of surface is also very good condition 清理弹丸情况依从Sa2.5标准。 坎坷45~75microns的结果 () 和密度 (极小值95%) 是可接受的。 表面的洁净也是非常优...
Formula (3.17) does not take into account the influence of the size of the heat exchange surface. The literature data on this issue are also ambiguous. The authors of Refs. [20,21] experimentally found that, under developed liquefaction regimes, there was no significant difference between the ...
Surface wind spirals outward from high pressure into low pressure, crossing isobars at an angle. The angle of surface wind to isobars is about 10° over water, increasing with roughness of terrain. In mountainous regions, one often has difficulty relating surface wind to pressure gradient ...
PURPOSE:To improve the measuring accuracy of an average flow velocity by obtaining an extra coefficient using a specific formula based on a hydraulic mean depth calculated from the depth of water and the diameter of a tube, equivalent roughness of the tube, mounting position of a sensor and ...
Surface roughnessThe boundary conditions of a vibrating plate are known to have an influence on its sound radiation for frequencies below the critical frequency. To investigate this effect in a systematic way, the average radiation efficiency and radiated power are calculated for a rectangular plate ...
Increased surface roughness and discoloration of the direct restorative materials used in pediatric patients affect the longevity of restorations and impair children’s oral health. Many factors can alter these properties. One of these factors is the intake of dietary supplements. It is crucial to pre...