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  • Measuring Specific Surface of Soils Using the WP4 (.pdf)
    The specific surface area of a soil sample is the total surface area contained in a unit mass of soil. Soils with high specific surface areas have high water holding capacities, more adsorption of contaminants, and greater swell potentials.
  • M538: Surface Mounting Instructions - Footprint Guidelines
    Surface mount board layout is a critical portion of the total design. The footprint must be the correct size to ensure proper solder connection interface between the board and the package. With the correct pad geometry, the package will self-align when subjected to a solder reflow process
  • Surface Enhanced Flake Graphite and its Utility as a Functional Extender for Molybdenum Disulfide (.pdf)
    . Friction and wear performance were evaluated using ASTM D2266 and D2596. Graphite and molybdenum disulfide concentrations were varied at 0%, 2.5%, and 5% of each component. Total solid lubricant phase was maintained at 5% except in the neat grease. The data showed that grease with added solid
  • Quality Assurance of Shot Peening by Automated Surface and Subsurface Residual Stress Measurement (.pdf)
    of the induced total strain energy, or the area under the residual stress-depth distribution. Furthermore, quite different residual stress distributions can produce the same Almen strip arc height. Shot peening to the same Almen intensity using different shot sizes will also generally produce
  • ARMEX (R) Cleans Skid in Record Time
    , etc. The function of the skid is to meter, pump, and measure the flow of crude oil from offshore ships to onshore storage tanks. The work needed to be done so that the skid -- and the equipment on it -- could be rebuilt and repainted. Total surface area of all the components making up the skid
  • Agricultural Films Duration Under Accelerated and Natural Weathering
    In 1976, the total surface area covered with greenhouse films worldwide was approximately 600km2. In 1990, the corresponding surface area surpassed 2200 km2 and reached 7230 km2 in 2002. The impressive development in the use of greenhouses can best be visualized by looking at southern Europe (Spain
  • Low-stress bonds through orbital forming
    takes longer to load the parts (either manually or via automation) than to complete the forming. Small-diameter soft materials process quicker than thicker materials. The total surface area and hardness determine the forming time. Process monitoring and control systems give operators visual status
    : * In what manner will the material be exposed to the patient, and for how long? What is the total surface area that will be exposed? * What are the chemical characteristics of the material being considered? Are there known constituents or additives that could be of concern as possible leachable
  • Catalytic Mechanism of Calcineurin Serine/Threonine Protein Phosphatase
    for the total protein. The center area is strongly positively charged (blue), surrounded by an area of neutral charge (white), and areas of negative charge (red). Click image for a better picture
  • A dry subject
    in dry, sliding contact, carry some of the total normal load, (MN) through asperities in the softer material. This so-called real contact area, ) can be estimated by: = yield pressure (MPa) for the softer asperities, which is typically about 3X higher than the material's tensile yield strength. Real