Results 31 to 40 of about 84,276 (299)
Mathematics, 2021 In this paper, we propose and derive a Birnbaum–Saunders distribution to model bimodal data. This new distribution is obtained using the product of the standard Birnbaum–Saunders distribution and a polynomial function of the fourth degree.
Jimmy Reyes +3 more
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Journal of Materials Research and Technology, 2022 The sub-micron bimodal grain structure of 301 austenitic stainless steel stripe obtained by phase reversion process, and the relationship between grain size distribution and mechanical properties was described in this study.
Yu Wang +10 more
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Evidence for a bimodal distribution in human communication [PDF]
Proceedings of the National Academy of Sciences, 2010 Interacting human activities underlie the patterns of many social, technological, and economic phenomena. Here we present clear empirical evidence from Short Message correspondence that observed human actions are the result of the interplay of three basic ingredients: Poisson initiation of tasks and decision making for task execution in individual ...
Wu, Y. +4 more
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Fluctuation of Firm Size in the Long-Run and Bimodal Distribution [PDF]
, 2011 We study empirically and analytically growth and fluctuation of firm size distribution. An empirical analysis is carried out on a US data set on firm size, with emphasis on one-time distribution as well as growth-rate probability distribution.
Grüne, Lars +9 more
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Fractal model for bimodal soil-water characteristic curve and its application in pore classification
Yantu gongcheng xuebao, 2022 Most existing bimodal soil-water characteristic curve (SWCC) models are derived from the empirical models for unimodal SWCC, in which the parameters have no clear physical meanings or value ranges generally.
TAO Gao-liang 1, 2, LIAO Ling-jin 1, LEI Da 1, OUYANG Qing 1, PENG Yin-jie 1, ZHANG Fan 1
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Bimodal distribution of seafloor microbiota diversity and function are associated with marine aquaculture [PDF]
, 2022 The aim of the current work was to investigate the impact of marine aquaculture on seafloor biogeochemistry and diversity from pristine environments in the northern part of Norway.
Rudi, Knut +6 more
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A Bimodal Lognormal Distribution Model for the Prediction of COVID-19 Deaths
Applied Sciences, 2020 The paper presents a phenomenological epidemiological model for the description and prediction of the time trends of COVID-19 deaths worldwide. A bimodal distribution function—defined as the mixture of two lognormal distributions—is assumed to model the ...
Paolo S. Valvo
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A new mechanistic approach for the further development of a population with established size bimodality. [PDF]
PLoS ONE, 2017 Usually, the origin of a within-cohort bimodal size distribution is assumed to be caused by initial size differences or by one discrete period of accelerated growth for one part of the population. The aim of this study was to determine if more continuous
Lisa Heermann +2 more
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ON THE BIMODALITY OF THE EXACT DISTRIBUTION OF THE TSLS ESTIMATOR [PDF]
Econometric Theory, 2006 Nelson and Startz (Econometrica, 58, 1990), Maddala and Jong (Econometrica, 60, 1992) and Wolgrom (Econometrica, 69, 2001) have shown that the density of the two-stage least squares estimator may be bimodal in a just identified structural equation. This paper further investigates the conditions under which bimodality may arise in a just/over-identified
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Bimodal Age Distribution in Cancer Incidence
World Journal of Oncology, 2022 Cancer is caused by accumulation of genetic changes which include activation of protooncogenes and loss of tumor suppressor genes. The age-specific incidence of cancer in general increases with advancing age. However, some cancers exhibit a bimodal distribution.
Desai, Shreya, Guddati, Achuta K.
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