Results 211 to 220 of about 4,805 (261)

Quadratic properties in group amalgams

jgth, 2011
Abstract Lyndon in [Combinatorial Group Theory, Springer-Verlag, 1977] proved that in a free group F each solution set {x, y, z} of the quadratic equation x 2 y 2 z 2 = 1 generates a cyclic group.
Fine, Benjamin, Rosenberger, Aila, Rosenberger, Gerhard   +2 more
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Polyhedral Properties of Clutter Amalgam

SIAM Journal on Discrete Mathematics, 1993
A binary operation (the clutter amalgam) is defined over the class of all clutters and its basic properties are studied. Further, a description of it in terms of the associated polytopes is given.
NOBILI, Paolo, SASSANO A.
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Dynamic mechanical properties of dental amalgams

Dental Materials, 1990
The dynamic mechanical properties of two high-copper amalgams (Tytin and Dispersalloy) and two traditional amalgams (Aristalloy and Aristalloy with Zn) were measured over a temperature range of 0-70 degrees C and at frequencies of 0.1, 1, and 10 Hz by means of a DuPont DMA.
J H, Chern Lin, E H, Greener, T, Hanawa, T, Okabe   +3 more
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The electrochemical properties of dental amalgam

Journal of Biomedical Materials Research, 1968
AbstractThe effects of variations in composition and processing on the open‐circuit electrode potentials measured as a function of time of amalgams made from silver–tin, silver–tin–copper, silver–tin–zinc, and silver–tin–copper–zinc alloys have been determined at 37°C in distilled water, in saline solution, as well as in acetate and citrate solutions ...
H J, Mueller, E H, Greener, D S, Crimmins   +2 more
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Electrochemical properties of corroded amalgams

European Journal of Oral Sciences, 1987
Three types of amalgam, one conventional, ANA 68, and two with high copper content, Dispersalloy (dispersed type) and ANA 2000 (single composition type), were investigated. The amalgams were immersed for periods of 7 wk at a time, up to 35 wk, in 23 ml (37 degrees C) of 0.9% NaCl aqueous solutions and in 0.9% NaCl solution buffered with NaH2PO4 (8.8 mM)
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The magnetic properties of amalgams

Proceedings of the Physical Society, 1936
The magnetic susceptibilities of a series of amalgams of known concentrations of bismuth, chromium, copper and manganese with mercury have been studied at room temperature, the Gouy method of measurement being employed in all cases. A study of the drop-weight method of measuring susceptibilities showed it to be quite unreliable for measurements with ...
L F Bates, L C Tai
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Marginal Fracture vs Mechanical Properties of Amalgam

Journal of Dental Research, 1970
The clinical marginal fracture characteristics of three commercial dental amalgams were evaluated and compared with a number of their mechanical properties to determine which properties would relate best to clinical performance. It was found that compressive strength, tensile strength, transverse strength, transverse deflection, and flow as determined
D B, Mahler, L G, Terkla, J, Van Eysden, M H, Reisbick   +3 more
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Some Properties of Au-Containing Dental Amalgam

Biomaterials, Medical Devices, and Artificial Organs, 1973
Conventional dental alloy, mostly Ag3Sn, has been modified by substituting 10 wt% Au for as much Ag. A spherical-particle, rapidly quenched alloy powder was produced by spraying the melt into a reducing atmosphere.Amalgam prepared from this alloy has improved physical and chemical properties, especially corrosion resistance.
L B, Johnson, K R, Lawless, G E, Stoner, J, Gardner, R, Young, T R, Gerosky, S, Oppenheimer, S T, Bender, M J, Neary   +8 more
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Amalgamated Products and the Howson Property

Canadian Mathematical Bulletin, 1997
AbstractWe show that if A is a torsion-free word hyperbolic group which belongs to class (Q), that is all finitely generated subgroups of A are quasiconvex in A, then any maximal cyclic subgroup U of A is a Burns subgroup of A. This, in particular, implies that if B is a Howson group (that is the intersection of any two finitely generated subgroups is ...
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Magnetic properties of copper amalgams

Proceedings of the Indian Academy of Sciences - Section A, 1939
Magnetic properties of dilute as well as concentrated amalgams have been investigated. It has been shown that when dilute amalgams are prepared by prolonged electrolysis at room temperature the diamagnetic susceptibilty of the amalgams prepared is lower than that calculated on the mixture law and the results are in line with those of Venkataramiah; but
S. S. Bhatnagar, P. L. Kapur, Girdharilal Mittal   +2 more
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