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An analytical model for the prediction of local scour depth around bandal-like structures is developed using the basic features of laboratory experiments under clear-water scour. The developed model is applied to available laboratory data as well as field data along the Jamuna river in Bangladesh. It is found that the model fits the experimental data having relatively shorter length but failed to predict the field data where length of the structure was relatively longer. The underlying reasons of such success and failures of the model for the prediction of local scour depth around BLS is discussed with the future target to develop more generalized prediction model.

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This paper aimed to identify the washing defects of denim garments and the remedies for these washing defects of denim garments in Bangladesh. The other purpose of this paper is to explain how such errors are related to the waste, production, and production costs of denim clothing. It also provides a statistical review of the denim sector in Bangladesh as compared to other countries. This paper is conveyed based on theoretical and statistical. It appears washing defects of denim garment, and their remedial actions and reveals the effect of washing defects on wastage, production, and production cost of denim garments. This research paper shows more washing defects of denim garments in Bangladesh. The statistical review displays that Bangladesh is exporting denim products near 200 million pieces every year over the world and ranks as the second-largest denim garments exporter after China. By studying this paper, the manufacturer of denim garments in Bangladesh and other countries will be conscious of these defects and able to minimize these defects that will help improve the economy all over the world.