Results 261 to 270 of about 1,603,529 (309)

Discussion of the Interpretation of Threshold Limit Values

American Industrial Hygiene Association Journal, 1966
Abstract In the calculation of threshold limit values for mixtures, the assumption of ideal behavior of liquid mixtures can lead to results considerably apart from actual conditions. Better results can be obtained by taking into account the activities of the components of such mixtures. The necessary equations and several examples are presented.
J, Novak, V, Vasak
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Threshold values in toxicology — useful or not?

Forensic Science International, 2000
In many fields of toxicology, numbers are used as threshold values, e.g. as "acceptable daily intake values" resulting in maximum permissible concentrations in food or in animal feed by using "safety factors"; maximal admissible concentrations of toxic substances in the air at the workplace; cut-off values in analytical toxicology; limit values for ...
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Gustatory Threshold Values of Xylitol in Primates

Folia Primatologica, 1984
The gustatory threshold values of xylitol solutions were determined in some non-human primates and compared with those of humans. Furthermore, the threshold values of xylitol and sucrose were compared.
R J, Haefeli, D, Glaser
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Threshold values and Boolean retrieval systems

Information Processing & Management, 1981
Several papers have appeared that have analyzed recent developments in the problem of processing, in a document retrieval system, queries expressed as Boolean expressions. The purpose of this paper is to continue that analysis. We shall show that the concept of threshold values resolves the problems inherent with relevance weights.
Duncan A. Buell, Donald H. Kraft
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The origin and basis of threshold limit values

American Journal of Industrial Medicine, 1984
AbstractThe concept of establishing a “threshold limit” for contaminants of industrial air is based on the principles of establishing: (1) quantitative relationships between the magnitude and duration of exposure to an industrial substance and the nature and magnitude of the response of the worker, and (2) a limiting level of exposure to potentially ...
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An overview of values for the threshold of toxicological concern

Toxicology Letters, 2012
An overview of values for the threshold of toxicological concern (TTC) is presented. This comprises the more established TTC values, including those that have been endorsed by regulatory bodies, and those that have more recently been proposed and may still need further development.
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Deciding with Thresholds: Importance Measures and Value of Information

Risk Analysis, 2017
AbstractRisk‐informed decision making is often accompanied by the specification of an acceptable level of risk. Such target level is compared against the value of a risk metric, usually computed through a probabilistic safety assessment model, to decide about the acceptability of a given design, the launch of a space mission, etc.
BORGONOVO, EMANUELE, CILLO, ALESSANDRA
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Image inpainting via singular value thresholding

2013 21st Signal Processing and Communications Applications Conference (SIU), 2013
This paper proposes an inpainting technique based on the singular value thresholding (SVT) algorithm for matrix completion. The SVT algorithm computes the missing elements of a matrix so that the resultant matrix is an approximate of the completion with least rank.
Yeganli, S. Faegheh, Yu, Runyi
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International Threshold Limits Values—1963

American Industrial Hygiene Association Journal, 1963
Abstract The activities and recommendations of the Second International Symposium on Permissible Limits of Air of Workplaces are briefly reviewed. Basic aspects of various methods of developing and establishing limits and standards are considered with comments.
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Crop Value, Economic Damage Thresholds, and Treatment Thresholds

1986
The crop protection adviser is constantly faced with the problem when to counsel the farmer to act to mitigate or prevent damage from abiotic or biotic agents, either by strengthening the plant (water, fertilizers) or by checking pests or pathogens by chemical or cultural means.
J. Palti, R. Ausher
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