Results 201 to 210 of about 605,121 (246)

Apparent viscosity of high-density fluidized bed and synergistic effect of density and apparent viscosity on particle separation

Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2023
Yuqi Bai, Guanghui Yan, Chenyang Zhou
exaly   +2 more sources

Mineralization density and apparent density in mandibular condyle bone

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2009
This study evaluated a method for determining the density and distribution of bone of mandibular condyles using proprietary computerized tomography (CT) software.Thirty-eight condylar specimens were investigated with a high-resolution multislice CT. The density was determined by using bone density analysis algorithms available within the proprietary ...
Gabriele, Mühlberger, Michaela, Svejda, Clemens, Lottersberger, Rüdiger, Emshoff, Reinhard, Putz, Volker, Kuhn   +5 more
openaire   +2 more sources

On the true and apparent densities of nanoparticles

Glass Physics and Chemistry, 2005
The classical concept of density is not very applicable to particles a few nanometers in size. It is shown that, when dealing with the continuous model representations, which are based on the operation of averaging over a volume element and are applied to nanoparticles, or when evaluating the specific physical quantities for nanoparticles, it is ...
V. Ya. Shevchenko, M. I. Samoilovich, A. E. Madison   +2 more
openaire   +1 more source

Apparent densities of orbital debris

Advances in Space Research, 1993
Abstract Means and standard deviations of area-to-mass ratios for orbital debris tracked by US Space Command (USSPACECOM) were calculated from changes in apogee and perigee altitude due to atmospheric drag. Historical radar cross sections (RCSs) were analyzed to determine their means and standard deviations.
P.D. Anz-Meador, R.H. Rast, A.E. Potter
openaire   +1 more source

The adaptation of bone apparent density to applied load

Journal of Biomechanics, 1995
A phenomenological theory of bone remodeling was developed with improved spatial stability compared to some of the more standard formulations. The improved stability was created by changing the nature of the remodeling differential equation to have an exponential character.
D P, Fyhrie, M B, Schaffler
openaire   +2 more sources

Variability of Apparent Particle Density of an Urban Aerosol

Environmental Science & Technology, 2003
The day to day and diurnal variation of apparent particle density was studied using highly time-resolved measurements of particle number distribution and fine-particle mass concentration. The study was conducted in Erfurt, Germany, from January 1, 1999, to November 22, 2000.
Mike, Pitz, Josef, Cyrys, Erwin, Karg, Alfred, Wiedensohler, H Erich, Wichmann, Joachim, Heinrich   +5 more
openaire   +2 more sources

Apparent density of thin evaporated films

Vacuum, 1954
Measurements of the apparent densities of copper and silver films formed by evaporation are described. The interpretation of the results and the manifestations of low apparant densities in physical experiments are discussed.
M. S. Blois, L. M. Rieser
openaire   +2 more sources

Apparent Density Variations in a Fluidized Bed

Transactions of the ASAE, 1992
Abstract The physical characteristics of a gaseous fluidized bed and their influence on the bed’s apparent density were examined. The effects of air velocity through the bed, air distributor resistance, medium particles size, and the location within the bed were evaluated.
null Z. Schmilovitch, null A. Zaltzman, null D. Wolf, null B. P. Verma   +3 more
openaire   +1 more source

Apparent Density of Air-Water Mixtures

Transactions of the ASAE, 1993
A dynamic model was developed to estimate the effect of hydraulic pressure gradient on the variation of air-water mixture density. The results showed that the density increases linearly with depth in the air-water mixture. The density variation was found to be greater at higher air flow rates.
null K. Zhao, null R. P. Cavalieri, null G. M. Hyde, null M. J. Pitts   +3 more
openaire   +1 more source