Results 201 to 210 of about 12,456 (239)
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Chromate Allergy: Chromate Content of Asian Cement
The Journal of Dermatology, 1986AbstractThe chromate content of 10 different Asian cements is studied. The hexavalent chromate and total chromium concentrations in these cements were analyzed using colorimetric spectrophometry and flame atomic absorption spectrophotometry, respectively. The pH of an aliquot of 20% w/v of cement in water ranged from 11.8 to 12.1.
C L, Goh, S F, Kwok
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Canadian Journal of Mathematics, 1982
Early in the Seventies I sought the number of rooted λ-coloured triangulations of the sphere with 2p faces. In these triangulations double joins, but not loops, were permitted. The investigation soon took the form of a discussion of a certain formal power series l(y, z, λ) in two independent variables y and z.The basic theory of l is set out in [1 ...
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Early in the Seventies I sought the number of rooted λ-coloured triangulations of the sphere with 2p faces. In these triangulations double joins, but not loops, were permitted. The investigation soon took the form of a discussion of a certain formal power series l(y, z, λ) in two independent variables y and z.The basic theory of l is set out in [1 ...
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Chromatic Scheduling and the Chromatic Number Problem
Management Science, 1972The chromatic scheduling problem may be defined as any problem in which the solution is a partition of a set of objects. Since the partitions may not be distinct, redundant solutions can be generated when partial enumeration techniques are applied to chromatic scheduling problems. The necessary theory is developed to prevent redundant solutions in the
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Purely chromatic and hyper chromatic lattices
Asian-European Journal of Mathematics, 2019We introduce the concepts of a hyper chromatic, a critically chromatic and a purely chromatic lattice. We obtain some characterizations for purely chromatic and hyper chromatic dismantlable lattices. We prove relationships between the chromatic number of two lattices and their linear sum, vertical sum and adjunct.
Madhukar M. Pawar, Amit S. Wadile
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2005
Naturally occurring chromate minerals are confined to the oxidized zones of base metal orebodies and to extremely oxidizing desert environments. Under such conditions, chromium reaches its highest oxidation state (+6).
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Naturally occurring chromate minerals are confined to the oxidized zones of base metal orebodies and to extremely oxidizing desert environments. Under such conditions, chromium reaches its highest oxidation state (+6).
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Archives of Ophthalmology, 1979
To the Editor. —There is an important error in the article "Colorimetry by a New Principle" by Gunkel and Cogan (Archives96:331-334, 1978) that should not pass uncorrected. Under the heading "A practical chromaticity system," the authors attribute the discovery of the chromaticity circle to Sir Isaac Newton.
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To the Editor. —There is an important error in the article "Colorimetry by a New Principle" by Gunkel and Cogan (Archives96:331-334, 1978) that should not pass uncorrected. Under the heading "A practical chromaticity system," the authors attribute the discovery of the chromaticity circle to Sir Isaac Newton.
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Chromate ingestion in chronic chromate dermatitis
Contact Dermatitis, 1978K, Kaaber, N K, Veien
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