Surface static

D. Andelman, J.-F. Joanny, M. O. Robbins. Complete wetting on rough surfaces statics. Europhys Lett 7 131-136, 1988. 

Dussan EBV (1979) On the spreading of liquids on solid surfaces static and dynamic contact lines. Ann Rev Fluid Mech 11 371 00... 

The application of heterogeneous catalysis plays a key role in technological processes. Engineering of the catalytic activities requires the study of the complex chemistry between absorbate and the catalyst at the surface. Static SIMS has been used to determine the surface composition and properties of solid catalysts before and after the catalytic actions by several groups.138-140 In addition, the dissociation kinetics of NO on Rh (111) surfaces have been studied by temperature programmed static SIMS.139... 

The PMMA and PET data show clearly the limitations of the ISS technique in providing the intrinsic composition of the outermost surface of polymers no static conditions for ISS analysis on polymers has been achieved with acceptable signal/noise ratio. Nevertheless, it has been shown elsewhere (15.16) that ISS, used with other complementary surface techniques, may be helpful for solving practical problems related to the polymers surface. Static SIMS has been shown to be more suitable than ISS for the surface analysis of polymers. ISS and SSIMS... 

Compute the net positive suction head on the pump. The net positive suction head hn on a pump when the liquid supply is above the pump inlet equals pressure on liquid surface + static suction head-friction-head loss in suction piping and pump inlet-vapor pressure of the liquid, all expressed in feet absolute of liquid handled. When the liquid supply is below the pump centerline—i.e., there is a static suction lift—the vertical distance of the lift is subtracted from the pressure on the liquid surface instead of added as in the preceding relation. 

Antistatic agents Minimize surface static charge Quaternary ammonium compounds... 

Powder samples of 10u average diameter were prepared by air jet micronization of polymeric or composite chunks. Composite materials were prepared by melt mixing of polymer and carbon black. Carbon black was added to the surface by milling the polymer powder and carbon black with glass beads for an hour, and subsequently heating the particles to tack the carbon black to the particle surface. Static resistivity measurements were performed on packed powders in a procedure similar to ASTM D257. 

Static Epitaxial Surface Static Random Surface... 

The colloidal partides were immobilized on charges on the particles and lhe positive charges polylysine coated glass surfaces by the electro- on lhe surface, static interactions between the negative... 

Friction is the opposing force that develops when two surfaces move relative to each other. Basically, there are two frictional properties exhibited by any surface static friction and kinetic friction. The ranges of friction properties are rather extensive. Frictional properties of plastics are important in applications such as machine products and in sliding applications such as belting and structural units such as sliding doors. In fiiction applications suggested as well as in many others, there are important areas that concern their design approach. 

The adhesion of cells to surfaces is different from that of proteins and DNA. Cell adhesion and spreading are believed to depend primarily on the hydrophobicity of both cells and surfaces. Cell surface hydrophobicity is usually associated with the presence of fibrillar structures oti cell surfaces and specific cell wall proteins. Adhesion, spreading, and growth of mammalian cells are generally promoted on hydrophilic surfaces ( static 30 40°) [10], while those of bacterial... 

Surface roughness has also been introduced by the use of near-supercritical carbon dioxide as a solvent for polymer 5, followed by pressure release to generate foams with 20 pm diameter pores [25]. The foam blocks were then cut to expose a fiat surface. Static water contact angle values on these surfaces were about 111°, which indicated that the micrometer-sized features on the surface were beginning to enhance the hydrophobic character. 

Superficial energy Surface kinetic Surface static Surface expansion velocity /Superficial tension ... 

These are developed for the electronics and packaging industries, which need short-term static discharge dissipation. The surface static charge of the polymers is temporarily neutralised by exposing the part to a slightly ionic atmosphere, the charge of which is opposite that of the polymeric part. 

The source of ignition can be an open flame, a spark, a hot surface, static electricity, or autoignition. Plant personnel must strive to eliminate all ignition sources from locations where flammable materials are stored or handled or must institute procedtues to control the resulting hazards. 

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