awhere there is a will there is a way 那里有a意志有方式[translate] astanding the pain of 站立 痛苦[translate] a你的电子游戏在失物招领处吗? Your computer game advertises lost property in the lost object place?[translate] aAfter milling and burnishing, the surface roughness was measured on ...
The standard dimension values for shape include length, angle of the needle tip, and outer diameter. The needle’s surface condition also needs to be measured; the minimum load for withdrawing a needle is specified for each outer diameter to prevent the needle from coming out during injection. ...
We demonstrate that velocity profiles in this confined geometry cannot be accounted for by the bulk - Herschel-Bulkley - rheological flow curve measured independently in a rheometer. A strong dependence of the flow behavior on the confinement, pressure drop and surface roughness is evidenced, which ...
For example, if the surface is chemically hydrophobic, it will become even more hydrophobic when surface roughness is applied. Wenzel’s statement can be described by: cosΘm = rcosΘY where Θm is the measured contact angle, ΘY is Young’s contact angle and r is the roughness ratio. ...
aThe same conclusion was reached by Cehreli et al., who suggested that the effects of the bleaching gels appeared to be materialdependent when they evaluated the effects of two home-use bleaching gels on the surface roughness of different types of glass ionomers [13]. 同一结论由Cehreli等得出...
Bhushan B (2001) Surface roughness analysis and measurement techniques. In: Bhushan B (ed) Modern tribology handbook. CRC Press, Boca Raton, pp 49–120 Google Scholar Blackman MJ, Stein GJ, Vandiver PB (1993) The standardization hypothesis and ceramic mass production: technological, compositional...
Therefore, the local curvature of the measured surface is defined as the inverse of the pair of independent local surface radii, namely, the radii of curvature, . When considered with the tip radius, Rtip, these are the basis for calculating the equivalent radius, ...
An ultrasonic device, such as thePosiTest PC, can be used non-destructively on uncured powder on smooth metallic surfaces to predict the thickness of the cured film. The probe is positioned a short distance from the surface to be measured and a reading is displayed on the LCD of the device...
This is common in other sports balls. A second, more important, effect is to promote boundary layer separation over the seams. This only occurs near the center of the ball. Three Reynolds number values that straddle the drag crisis are measured. Various orientations of the seams are studied ...
Pascaretti-Grizon F, et al. Abrasion of 6 dentifrices measured by vertical scanning interference microscopy. Rathee M, et al. Denture Hygiene in Geriatric Persons. Silva-Lovato CH, et al. Efficacy of biofilm disclosing agent and of three brushes in the control of complete denture cleansing. ...