Výsledky vyhledávání - "Frank N Blanchard"

The Quality of X-ray Diffraction Standards for Phosphate Minerals and the Degree of Success in Computer Identification

Autor: Frank N. Blanchard

Publikováno v: Advances in X-ray Analysis. 28:305-308

Sixty-five years ago Hull first described X-ray powder diffraction as a means of phase identification, and 45 years ago Hannawalt and co-workers compiled the first catalogue of powder diffraction patterns, which has evolved into a file of about 44,00

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::511343c795f23cf1361960f553ecdbff
https://doi.org/10.1154/s0376030800014129

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New X-Ray Powder Data for Gorceixite, BaAl3(PO4)2(OH)5·H2O, an Evaluation of d-Spacings and Intensities, Pseudosymmetry and Its Influence on the Figure of Merit

Autor: Frank N. Blanchard

Publikováno v: Powder Diffraction. 4:227-230

New powder and crystallographic data for gorceixite, a mineral of the crandallite subgroup of the alunite group, are reported and compared with current Powder Data File (PDF) patterns and with calculated patterns. Both d-spacings and intensities have

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0657f511d4fdae0a5dea86b3100dc00
https://doi.org/10.1017/s0885715600013804

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Evaluation of Existing X-Ray Powder Diffraction Standards for Phosphate Minerals

Autor: Frank N. Blanchard

Publikováno v: Advances in X-ray Analysis. 27:61-66

Of the roughly 3,000 known mineral species over 290 or 10 percent are phosphates. This report deals with a recently initiated project, the purpose of which is to produce better X-ray powder diffraction standards than currently exist for selected phos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40f78bf0dc90ddb19d37a2f89cd4f6d8
https://doi.org/10.1154/s0376030800016967

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The Use of Calculated Patterns as an Aid in Preparation of Powder Diffraction Standards: Minyulite, Kal2(PO4)2(OH,F).4H20, As an Example

Autor: Frank N. Blanchard

Publikováno v: Advances in X-ray Analysis. 29:225-233

As part of a continuing project dealing with evaluation, testing, and preparation of new high quality X-ray powder diffraction standards for phosphate and arsenate minerals, new X-ray and supporting data for minyulite, KAl2(PO4)2(0H,F).4H20, have bee

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49aaddc7e57bb2a85caa81787dc16a5a
https://doi.org/10.1154/s0376030800010302

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X-Ray Powder Data for Tetracycline-urea Tetrahydrate, C23H36N4O13 and Tetracycline Hexahydrate, C22H24N2O8·6H2O

Autor: Gus J. Palenik, Frank N. Blanchard

Publikováno v: Powder Diffraction. 4:168-171

Indexed powder diffraction patterns and related crystallographic data are reported for tetracycline-urea tetrahydrate and tetracycline hexahydrate, neither of which is represented in the X-ray Powder Diffraction File. Objective evaluation of the data

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddd6840bcc96404e7cabba27b7db7dad
https://doi.org/10.1017/s0885715600016675

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Application of Quantitative X-Ray Diffraction Analytical Methods to the Study of High-Magnesium Phosphorites

Autor: Frank N. Blanchard, Barbara Saffer, Robert E. Goddard

Publikováno v: Advances in X-ray Analysis. 29:235-242

Phosphorite is a sedimentary rock with a high enough content of phosphate minerals to bo of economic Interest. Most phosphorites are composed predominantly of m1crocrystall1no to cryptocrystalline carbonate fluorapatlte thenceforth In this report ref

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0bded04a39f72d806d8a5fbb6a1347b
https://doi.org/10.1154/s0376030800010314

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Size Groups and their Characteristics in the Salamander Hemidactylium scutatum (Schlegel)

Autor: Frank N. Blanchard, Frieda Cobb Blanchard

Publikováno v: The American Naturalist. 65:149-164

1. Evidence has been presented in favor of the view that Hemidactylium attains sexual maturity near the end of its third season of life, i.e., when it is approximately two and a third years old. 2. Juveniles in their first autumn can be recognized by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bf6040f480045f01f49f7265d2065b5
https://doi.org/10.1086/280357

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A Method of Marking Living Snakes for Future Recognition, with a Discussion of Some Problems and Results

Autor: Ethel B. Finster, Frank N. Blanchard

Publikováno v: Ecology. 14:334-347

Several years ago, during certain studies on the habits of snakes, it was realized that some simple system for recognizing individuals must be devised. In working with ring-neck snakes, Diadophis punctatus edwvardsii, complete scale counts and measur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c06890d0c4fd14d205d47ce7018309a7
https://doi.org/10.2307/1932657

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The Stimulus to the Breeding Migration of the Spotted Salamander, Ambystoma maculatum (Shaw)

Autor: Frank N. Blanchard

Publikováno v: The American Naturalist. 64:154-167

THE early spring migration activities of the spotted salamander, Ambystoma -maculatum (Shaw), were studied by the writer at White's Woods,2 Ann Arbor, Michigan, in 1924 and 1926, and the tentative conclusion reached that the salamanders come to the b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e893e04f7bb3b6ad4e28cb67a94edc9c
https://doi.org/10.1086/280306

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