Results 251 to 260 of about 3,169,064 (307)

INDUCTIVE COMPLEXITY MEASURES FOR MATHEMATICAL PROBLEMS

International Journal of Foundations of Computer Science, 2013
An algorithmic uniform method to measure the complexity of finitely refutable statements [6, 7, 9] was used to classify famous/interesting mathematical statements like Fermat's last theorem, the four colour theorem, and the Riemann hypothesis [8, 15, 16].
Mark Burgin, Cristian S. Calude, Elena Calude   +2 more
openaire   +3 more sources

Measurement of Induction-Hardening Depth

2003
In case of inhomogeneous materials, the resonance frequency is governed by the elastic constants and density at the positions of maximum stress and amplitude, respectively, which locate in the medium, depending on the individual resonant mode. Different resonant modes provide the information on the elastic property at different positions, and the ...
Masahiko Hirao, Hirotsugu Ogi
openaire   +1 more source

Inductance measurements at CENAM

2012 Conference on Precision electromagnetic Measurements, 2012
Based on a Maxwell-Wien bridge (MWB) and well characterized inductance standards, Centro Nacional de Metrologia (CENAM) is able to perform low uncertainty inductance measurements. Technical characteristics of the standards and measurement systems, validation results and other technical support are presented in this paper.
J. Angel Moreno, Felipe Hernandez Marquez   +1 more
openaire   +1 more source

Biomass measurement by inductive permittivity

Biotechnology and Bioengineering, 1997
An electrodeless, inductive permittivity probe is shown to reliably indicate fermentation biomass. By designing the probe based on electromagnetic induction, the electrode polarization artifact-common to electrode-based permittivity measurements of conductive solutions-is eliminated. The measurement of viable biomass concentration (X(V)) is precise and
openaire   +2 more sources

Return path inductance in measurements of package inductance matrixes

IEEE Transactions on Components, Packaging, and Manufacturing Technology: Part B, 1997
Circuit theory is applied to show that the effects of the return path on measured inductance matrices can be negligible. Measured inductance matrices using three distinctly different return paths are shown to be very different but equivalent.
openaire   +1 more source

Design of an inductive plethysmograph for ventilation measurement

Physiological Measurement, 1994
We have designed an inductive plethysmograph to obtain a non-invasive measure of ventilation. Two elastic bands containing insulated wires encircle the chest and abdomen--the inductance of each band depends on the enclosed cross sectional area. Each inductive band forms an element in a tank circuit, which determines the resonant frequency of a Colpitts
K P, Cohen, D, Panescu, J H, Booske, J G, Webster, W J, Tompkins   +4 more
openaire   +2 more sources

Measurement of Small Inductance

Nature, 1921
THE method of suspending a loop of wire in a uniform alternating magnetic field, as used by Fleming and Elihu Thomson for the construction of A.C. galvanometers, can be applied with advantage to determine the self-inductance of loops in absolute measure, and it would seem that we can go considerably lower in this way than can conveniently be done ...
openaire   +1 more source

Induction and Measurement of In Vivo Antibody Responses

Current Protocols in Immunology, 1991
AbstractThe capacity of the human immune system to mount an antibody response following in vivo immunization with a protein or polysaccharide antigen is a revealing indication of the overall integrity of both the B and T cell arms of the immune system. As such, in vivo immunization followed by measurement of the antibody response is an appropriate test
R J, Engler, C C, Kurman, D L, Nelson
openaire   +2 more sources

On a Measure on the Inductive Limit of Projection Logics

International Journal of Theoretical Physics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Matveichuk, Marjan, Vladova, Elena
openaire   +1 more source

Large inductive thruster performance measurement

15th International Electric Propulsion, 1981
a = inner radius of coil, m b = outer radius of coil, m B,Br = radial magnetic field, T C = capacitance of storage bank, F E9 = azimuthal electric field, V/m Fz = axial force, N g = acceleration of gravity, m/s Ij = circuit current, A I2 = plasma current, A Isp = specific impulse, s je = plasma current density, A/m js = surface current density, A/m L =
R. H. Lovberg, C. L. Dailey
openaire   +1 more source