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  • Variation and genetic control of wood density
    of the genetic variability is of the additive type, enabling good gains from selection and breeding. Because of its major effect on paper, solid wood products and energy programmes, the genetics of wood density has been studied more than any other wood property (1). The heritabilities of wood
  • Volume and Density Determinations for Particle Technologists (.pdf)
    . An excellent. A brick obviously is composed of solid material. overview of density determinations in this. and it has a volume that can be calculated after. application is by Capano (1). measuring its length, width, and thickness. The Density Enigma. However, it also contains surface irregularities,. small
  • Extinction Cross-Section Measurements of
    of wavelength, parti-. unit volume;. (R) = C N(R), where C. ext. ext. ext. cle size, and chemical makeup (growth media variations. is the extinction cross section),. and different aerosolizing procedures). = the solid angle subtended by the receiver. rec. It is now being recognized that aerosol lidars
  • NEC Solid State Relays for ATE Applications
    Compares SSRs to Electro-Mechanical and Reed relays and examines the use of SSRs in ATE (Automated Test Equipment)applications. ./53ce47d8-7754-4833-befc-0e555f5383b7 ApplicAtion note. AN3008. Renesas Solid State Relays for ATE Applications. Authors: Van N. Tran. CEL Staff Application Engineer
  • Direct Measurement of Crosslink Density
    The Swell Ratio Tester (SRT TM) is an in-house design that allows safe and simple determination of the swelling properties of polymeric materials. The data generated. provides insight into crosslinked solid polymers, like polyethylene, or solvated systems such as hydrogels and organogels. The SRT
  • Zeta Potential Measurement (Aqueous and Non-Aqueous, Iso-Electric Point Determinations)
    over which the scattering pattern is collected and the instruments optical configuration. The laser diffraction technique is flexible in terms of the type of samples that can be measured. Particles can be dispersed in a liquid medium (wet laser diffraction) or as solid particles dispersed in an air
  • Thermal Resisitivity of Porous Materials (Soils) Change with Changes in Density, Water Content, Temperature and Composition (.pdf)
    resistivity of moist, air-filled. a function of water content. The solid fraction in each was. pores is about the same as the thermal resistivity of. 0.5. water at 60°C, so, at this temperature, changing the. water content of the material does not affect its. resistivity. In Fig. 3, the 50°C curve shows
  • Hubble Makes First Direct Measurements of Atmosphere on World Around another Star
    the planet's atmosphere to a torrid 2000 degrees Fahrenheit (1100 degrees Celsius). Previous transit observations by Hubble and ground-based telescopes confirmed that the planet is primarily gaseous, rather than liquid or solid, because it has a density less than that of water. (The Earth, a rocky