Archive:: American Journal of Mechanics and Applications:: Science Publishing Group

Volume 12, Issue 1, March 2025

Research Article
Developing Robust Exponential Ratio and Product Estimators for Post-Stratification: Addressing Non-Response and Enhancing Accuracy Through Double Sampling

Rubal Sharma, Sangeeta Malik^*, Ruchi Gupta

Issue: Volume 12, Issue 1, March 2025

Pages: 1-10

Received: 4 January 2025

Accepted: 20 January 2025

Published: 7 February 2025

DOI: 10.11648/j.ajma.20251201.11

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Abstract: A key survey sampling technique, post stratification, involves dividing a population that is diverse into strata with rather homogeneous members in order to improve population estimates. Modern large scale surveys often suffer from non-response, and these too will yield biased results. According to this paper, a new estimator which combines non res... Show More

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Research Article
Mathematical Modeling of Batch Fluidized Bed Drying of Alumina

Touil Amira^*, Gritli Souhir, Taieb Ahmed

Issue: Volume 12, Issue 1, March 2025

Pages: 11-21

Received: 24 January 2025

Accepted: 7 February 2025

Published: 21 February 2025

DOI: 10.11648/j.ajma.20251201.12

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Abstract: Fluidized bed drying is an efficient and widely used method for drying wet powders and granular products. To optimize this drying process, several approaches for modeling, including empirical, semi-empirical, or more complex computational fluid dynamics models are used. This work aims to simulate batch fluidized bed drying processes of alumina usin... Show More

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