Results 231 to 240 of about 16,573 (262)

ERRORS ASSOCIATED WITH AN EGGSHELL STRENGTH TESTER

Canadian Journal of Animal Science, 1969
not available
Peter W. Voisey, G. D. Robertson
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Review Paper: Strength Performance of Eggshell as a Cement Replacement in Concrete

Key Engineering Materials, 2021
The numbers of Malaysian construction industry had been increasing in several years with the large construction building and infrastructures projects had been constructed. Therefore, these developments led to an increase of cement production. The production of cement will cause wider environmental implication such are air pollution, water pollution and
Adnan Zaidatul Syahida, Ariffin Nur Farhayu, Sharifah Maszura Syed Mohsin, Abdul Shukor Lim Nor Hasanah   +3 more
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Protoporphyrin and Eggshell Strength: Preliminary Findings from a Passerine Bird

Avian Biology Research, 2011
Protoporphyrin pigmentation is a common feature of passerine eggshells worldwide, typically giving red to brown coloration. Although these may form a background colour to the egg, protoporphyrin more commonly forms speckles, blotches or patches of colour (maculation) against a white (unpigmented) or blue/green (biliverdin-pigmented) background ...
Andrew G. Gosler, Oliver R. Connor, Richard H.C. Bonser   +2 more
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BREAKING STRENGTH: AN ALTERNATIVE INDICATOR OF TOXIC EFFECTS ON AVIAN EGGSHELL QUALITY

Environmental Toxicology and Chemistry, 1986
Abstract A method for measuring the breaking strength of avian eggshells is presented along with a brief review of the literature relating shell strength to chlorinated hydrocarbon exposure. The effect of dietary DDE on shell strength is compared with its effect on shell thickness in the mallard duck (Anas platyrhynchos L).
J. C. Carlisle, D. W. Lamb, P. A. Toll
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COMPARISON OF BREAKING STRENGTH AND SHELL THICKNESS AS EVALUATORS OF EGGSHELL QUALITY

Environmental Toxicology and Chemistry, 1988
Abstract The shell quality of eggs produced by northern bobwhite (Colinus virginianus) dosed with sulfanilamide was evaluated by a compression breaking strength test and by the shell thickness measurements that are used in the U.S. Environmental Protection Agency avian reproduction test to determine the effect of a chemical substance on ...
Jewel K. Bennett, Robert K. Ringer, Richard S. Bennett, Bill A. Williams, Philip E. Humphrey   +4 more
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The Effect of Eggshells Ash on the Compressive Strength of Concrete

Key Engineering Materials, 2017
This paper presents the main results of the research carried out to analyse the mechanical properties of concrete incorporating with eggshells waste. The use of eggshells ash in concrete formulations was investigated as an alternative to landfill disposal.
Fazeera Ujin, Kamran Shavarebi Ali, Zarina Yasmin Hanur Harith   +2 more
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Effects of Nest Parasitism and Nest Location on Eggshell Strength in Waterfowl

The Condor, 1990
We examined the relationship between brood parasitism, nest location, egg shape, and eggshell thickness in waterfowl species. We found that within and across tribes, parasitic species did not have significantly rounder eggs or thicker shells than nonparasitic species.
Mallory, Mark L., Weatherhead, Patrick J.   +1 more
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On-line estimation of eggshell strength based on acoustic impulse response analysis

Innovative Food Science & Emerging Technologies, 2013
Abstract This paper proposes a nondestructive method for on-line estimation of eggshell strength based on acoustic resonance analysis. The system employed digital signal processing (DSP, TMS320F2812) as core processor to collect and analyze the response signal of eggshell.
Li Sun, Jian-rong Cai, Hao Lin, Jie-wen Zhao, Xia-kun Bi   +4 more
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The fracture strength under internal pressure of the eggshell of the domestic fowl

Proceedings of the Royal Society of London. Series B: Biological Sciences, 1996
Measurements are reported of the internal fluid pressure needed to fracture the shell of the egg of the domestic fowl. The average fracture stress, calculated from the measured pressure, for a set of 38 eggs was 15.2 MPa. This is about half of the fracture stress measured by concentric loading tests previously reported (Entwistle et al . 1995).
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Eggshell Shear Strength Evaluation with Micro-Punches

Transactions of the ASAE, 1974
null R. L. Clark, null R. L. Acree
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