Preliminary Assessment of Earthquake Vulnerability of RC Buildings by Japanese Index Method
Corresponding Author : Mushtaq Ahmed (mushtaq_cee@yahoo.com)
Abstract :
The principal observation of this study is emphasized on the structural seismic evaluation of low to medium-rise buildings and it is tried to establish the Japanese Index Method as a precise and user-friendly structural vulnerability assessment method for reinforced concrete (RC) buildings. In this study, a detailed survey has been carried out on 8 low to medium-rise RC residential buildings from Shahjalal Upashahar of Sylhet, Bangladesh to assess the earthquake vulnerability. The first level, out of the three levels of…
Improvement of the compressive strength of soft clayey soil using the bio-treatment method
Corresponding Author : Md. Nazmul Islam Rafi (rafi1998.nir@gmail.com)
Abstract : As environmental concerns, economic viability, and application practicability have grown in importance, the creation of novel methods to enhance the engineering qualities of soil has emerged as a new area of geotechnical engineering. Numerous techniques of soil improvement have been put forth in this respect in an effort to meet sustainability requirements, lower the overall cost of construction, and ensure safe field application. To fulfill these requirements, the Microbially Induced Calcite Precipitation (MICP) technique is now widely used. The objective…
Corona Virus Disease 2019 (COVID-19): Prediction Strategy Using Sequential Deep Learning Model
Corresponding Author : A. S. Surja (amitshaha719@gmail.com)
Abstract :
Nowadays, while the globe is facing extreme difficulty with COVID-19, Artificial Intelligence can help to cope with this epidemic in an innumerable number of ways. Motivated by this, in this article, a robust prediction model has been proposed for pandemic COVID-19 using Sequential Deep Learning (SDL), called COVID-SDL to predict the total positive cases. The proposed model utilizes the correlation information among the features that have strengthened the prediction capability. In addition, to assist the prediction ability of COVID-SDL, ReLu…
Higher Order Statistical Analysis of Group Delay Spectrum for Formant Estimation of Noisy Speech Signal
Corresponding Author : Husne Ara Chowdhury (husna-cse@sust.edu)
Abstract :
The spectral distortion caused by different additive Gaussian noise degrades the speech quality. As a result, it imposes problems when estimating the formant frequency. In this paper, we proposed a technique for
estimating the formant frequencies from the noisy speech signal. A process is described to suppress the noise of the noise-perverted speech, employing the higher-order statistical (HOS) analysis. After analyzing a few issues related to the magnitude spectrum, we used a minimum phase signal to extract an efficient group delay…
Variation in biochemical composition and quality of commercially available green tea and black tea in Bangladesh
Corresponding Author : Mitu Samadder (msamadder-fet@sust.edu)
Abstract : <p>This study investigates the biochemical composition and quality attributes of commercially available black and green tea samples in Bangladesh. Ten popular tea brands, five each of black and green teas, were analyzed for various parameters including total polyphenol content, antioxidant activity, caffeine content, moisture content, lipid content, ash content, and water extract. The results revealed that green tea generally contains higher levels of polyphenols and exhibits greater antioxidant activity compared to black tea. Conversely, black tea samples showed higher caffeine…
Grey-Taguchi Approach to Optimize Fused Deposition Modeling Process in Terms of Mechanical Properties and Dimensional Accuracy
Corresponding Author : M. A. B. Syed (asifbinsyed33@gmail.com)
Abstract :
Fused Deposition Modeling (FDM) is a process that allows for the rapid production of functional parts through the deposition of fused material layers in a sequential manner. FDM has flexibility and the potential to create complicated parts. This study aims to optimize the FDM process parameters in terms of tensile strength, flexural strength, and longitudinal shrinkage using the Grey-Taguchi approach. The input parameters chosen to study the effects on dimension and mechanical properties are layer thickness, the raster angle, fill…
Productivity Improvement Applying “Theory of Constraints” Approach – An in-depth case Study in An Agro-Processing Organization in Bangladesh
Corresponding Author : M. H. Kibria (kibria-ipe@sust.edu)
Abstract :
The Agro and Food processing industry is a rapidly growing sector in Bangladesh. It employs a significant portion of the labor force in the country. This sector exports many items, including processed food products such as frozen fish, shrimp, food in dry form, processed meat, ready-to-cook food like paratha, dal puri, etc., and earns considerable
foreign currency. It has indeed more potential to earn as global demand is upraising. To cope-up with competitive edges, the industry must increase productivity by ensuring…
Biosorption of Heavy Metals from Industrial Wastewater using Local Blue-Green Microalgae
Corresponding Author : M.I. Kabir (imran.kabir-cee@sust.edu)
Abstract : Heavy metal pollution and its effects on public health and the environment have led to an increased interest in developing biotechnological approaches. This study was carried out to check the heavy metal biosorption capacity of locally available blue-green microalgae. In this study, microalgae were collected from local ponds and cultured in BG-11 medium. Sixteen different algal doses from 0.2 g/L to 20 g/L were applied to synthetic wastewater and their removal efficiencies of Cr(VI), Ni(II) and Zn(II) were found to…
Estimation of Water Quality in Surma River Using Digital Image Data
Corresponding Author : S.Z. Farzana (zehan_farzana@lus.ac.bd)
Abstract : Typical water quality measuring techniques in Bangladesh are time-consuming, costly, and are not certainly accessible to the general people while it is very essential for ensuring safe water for different household and drinking purposes. In this study, a low-cost digital camera has been used to measure different water quality parameters aimed to shape it as an alternative to the traditional system. Water samples were collected from two points of the Surma River, and subsequent images were taken with camera height…
A Study on the Efficiency of Permeable Concrete with Scrap Tire Rubber
Corresponding Author : M.I. Kabir (imran.kabir-cee@sust.edu)
Abstract : With the advancement of civilization, the volume of polymeric wastes, for example, tire rubber is expanding at a quick rate. This study attempts to utilize this discarded tire rubber to produce permeable concrete for stormwater management in urban area facilitating water sensitive urban design and to compare it with the conventional permeable concrete. In this study, 5%, 10% and 15% coarse aggregate are replaced with shredded tire rubber (as w/w ratio) maintaining a constant water cement ratio of 0.32. It…