Results 221 to 230 of about 1,004,664 (267)
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Influence of Electric Field on the Capacity of Phospholipid Membranes
Nature, 1966VARIOUS bimolecular models of the cell membrane have already been made1–3. Such bimolecular films separating two aqueous solutions are formed by applying a solution of phospholipids to the hole in a ‘Teflon’ cup.
A V, Babakov +2 more
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A Field's Capacity to support a Butterfly Population
Nature, 1964THE controversy among ecologists on ‘density dependence’ swelled out of all proportion due to differences among authors in the meaning and use of such words as ‘carrying capacity’, ‘competition’ and ‘density’. Beneath these unimportant disagreements, however, there lies at least one fundamental question which has seldom been investigated: Does an area ...
V. G. DETHIER, ROBERT H. MACARTHUR
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Flux-Based Estimation of Field Capacity
Journal of Geotechnical and Geoenvironmental Engineering, 1999Field capacity has been defined as the water content at which the drainage flux from a soil ceases, or becomes negligible. Field capacity is most commonly estimated as the water content at a pressure head of 1/3 bar, which ignores its flux-based nature.
Philip D. Meyer, Glendon W. Gee
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Heat capacity of Gd0.06Er0.94Al2 in magnetic fields
Journal of Applied Physics, 1988We have measured the specific heat of an arc-melted specimen of Gd0.06Er0.94Al2 in applied magnetic fields of 1, 3, 5, and 8 T from 4.5 to 40 K, and in zero field from 1.4 to 98 K. Inspection of entropy versus temperature with the lattice included shows that the maximum adiabatic cooling is 13 K and occurs from 30 K at 8 T to 17 K at zero field.
W. R. Johanson +3 more
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Peak Capacity in Field-Flow Fractionation
Separation Science and Technology, 1981Abstract Field-flow fractionation (FFF) peak capacity values have been computed with only two major assumptions: first, the plate height is supposed the sum of only two contributions, axial molecular diffusion and transversal nonequilibrium, and second, the steric effect has been neglected in the equations of retention and peak broadening.
M. Martin, A. Jaulmes
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Measurement of Field Capacity with a Neutron Meter
Soil Science Society of America Journal, 1958Abstract An experiment to determine the moisture vs time curve, and hence the field capacity, was carried out at 6‐inch increments to a depth of 5 feet on 4 soils. Plots of soil were soaked with water and a soil moisture meter employing neutron scattering used to determine the moisture content of the soil profile at different times ...
W. C. Burrows, Don Kirkham
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Information Capacity of a Radiation Field
2010Coherence conditions define the volume of a mode and the number of modes in a radiation field. The number of spatial modes or independent channels is equal to the maximum number of pixels in a plane. The field amplitudes of thermal sources fluctuate randomly, and the superposition of different modes produces a fluctuating interference pattern (speckle)
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Field Validation of Collaborative Capacity Audit
2008Abstract : This phase of our study further develops and refines a collaboration capacity survey that was designed by the authors in 2003. Using verbal protocols with subject-matter experts in the DoD acquisition arena, field-testing, and a literature review, the researchers piloted alternative forms of the diagnostic survey.
Rene G. Rendon +3 more
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Regenerative Capacity of Field Bindweed Roots
Weed Science, 1976Lateral roots of a clone of field bindweed (Convolvulus arvensis L.) were dug each month for 12 months, cut into 6-cm long sections and grown in the dark on moist paper at 23 C to determine if regeneration varies seasonally. New shoots and roots were measured after 8, 11, and 14 days. After 14 days, 69% to 98% of the sections had produced shoots.
D. G. Swan, R. J. Chancellor
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The Krafla Geothermal Field, Iceland: 3. The generating capacity of the field
Water Resources Research, 1984This paper presents analytical and numerical studies of the generating capacity of the Krafla field. A general lumped parameter model is developed which can be used to obtain rough estimates of the generating capacity of a geothermal field based on the size of the wellfield, the average formation porosity, and the amount of recharge to the system.
G. S. Bodvarsson +3 more
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