Mohammad Obaidur Rahman
YOU?
Author Swipe
View article: Vibration Analysis of the BAEC TRIGA Research Reactor Cooling System: A Comprehensive Study
Vibration Analysis of the BAEC TRIGA Research Reactor Cooling System: A Comprehensive Study Open
The Bangladesh Atomic Energy Commission (BAEC) Research Reactor (BTRR) cooling system is a critical component for safe and reliable reactor operation. Excessive vibration of this system can lead to fatigue, component failure, and potential…
View article: Effect of Wash Cycles and Polyester Fiber Blend Ratios on Wicking Behavior of Blended Knit Fabrics
Effect of Wash Cycles and Polyester Fiber Blend Ratios on Wicking Behavior of Blended Knit Fabrics Open
View article: Density Functional Theory Study of EmimBF4 Ionic Liquid Monomer and their Interaction with CO<sub>2</sub> in Ionic Liquid Environments: Insights from Vibrational Spectra Analysis
Density Functional Theory Study of EmimBF4 Ionic Liquid Monomer and their Interaction with CO<sub>2</sub> in Ionic Liquid Environments: Insights from Vibrational Spectra Analysis Open
In order to improve our knowledge of cation-anion interactions in ionic liquids, we optimized the 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMImBF4]), and their interactions with CO2, with a focus on structural properties and vibrati…
View article: Predicting the Stitch Density of Finished Fabrics Using Weft Blended Grey Knit Fabrics
Predicting the Stitch Density of Finished Fabrics Using Weft Blended Grey Knit Fabrics Open
Stitch density is one of the critical quality parameters of knit fabrics. This parameter is closely related to other physical quality parameters like fabric weight, fabric tightness factor, fiber types, blend ratio, yarn diameter and linea…
View article: Mechanical and Electrical Properties of Some Sn-Zn Based Lead-Free Quinary Alloys
Mechanical and Electrical Properties of Some Sn-Zn Based Lead-Free Quinary Alloys Open
Although there are many lead-free soldering alloys on the market, none of them have ideal qualities. The researchers are combining binary alloys with a variety of additional materials to create the soldering alloys' features. The eutectic …
View article: Effects of Different Packaging Methods on the Shelf Life of Cashew Nuts and Kernels
Effects of Different Packaging Methods on the Shelf Life of Cashew Nuts and Kernels Open
Cashew, Anacadium occidentale is a nut crop considered essential simply because it provides food and employment to millions of people in developing nations. It is cultivated mainly for its nut; a very important export commodity. Dried cash…
View article: Five-level cascaded H-bridge inverter for renewable energy applications
Five-level cascaded H-bridge inverter for renewable energy applications Open
This paper presents a five-level inverter based on the phase-disposition pulse width modulation (PD-PWM) technique for renewable energy applications. The conventional cascaded H-bridge (CHB) five-level inverter structure is reproduced, and…
View article: One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications
One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications Open
Graphene and its derivatives have emerged as peerless electrode materials for energy storage applications due to their exclusive electroactive properties such as high chemical stability, wettability, high electrical conductivity, and high …
View article: Studying the Effect of Polyester Fiber Blend Ratio and Pilling Cycle on Blended Knit Fabrics
Studying the Effect of Polyester Fiber Blend Ratio and Pilling Cycle on Blended Knit Fabrics Open
Pilling is a severe concern for blended fabrics. The aesthetic look and smoothness are the buyers’ prime requirements. The main focus of the study was to see the pilling behavior from various percentages of polyester fiber blend ratio as w…
View article: Effect of Strain Rate on Tensile Behavior of Sn-9Zn-xAg-ySb; {(x, y) = (0.2, 0.6), (0.2, 0.8), (0.6, 0.2), (0.8, 0.2)} Lead-Free Solder Alloys
Effect of Strain Rate on Tensile Behavior of Sn-9Zn-xAg-ySb; {(x, y) = (0.2, 0.6), (0.2, 0.8), (0.6, 0.2), (0.8, 0.2)} Lead-Free Solder Alloys Open
The tensile properties of Sn-9Zn-xAg-ySb; {(x, y) = (0.2, 0.6), (0.2, 0.8), (0.6, 0.2), (0.8, 0.2)} lead-free solders were investigated. All the test samples were annealed at 150°C for 1 hour. The tests are carried out at room temperature …
View article: Predicting Bursting Strength Behavior of Weft Knitted Fabrics Using Various Percentages of Cotton, Polyester, and Spandex Fibers
Predicting Bursting Strength Behavior of Weft Knitted Fabrics Using Various Percentages of Cotton, Polyester, and Spandex Fibers Open
The bursting strength is an essential quality parameter of knit fabric. The fabric structure, weight, types of fibers, and fiber blend proportion influence the bursting strength parameter. The tenacity of polyester fiber is better than cot…
View article: Modeling of an isolated microgrid with hybrid PV-BESS system for peak load shaving simulation
Modeling of an isolated microgrid with hybrid PV-BESS system for peak load shaving simulation Open
environment, distributed energy resources (DER) are introduced increasingly [7,8].Besides, the shortage of fossi For the IMG system, the power generation from renewable energy sources like PV, hydro-energy, geothermal energy is becoming -s…
View article: TRACE AND HEAVY ELEMENTAL CONCENTRATION ANALYSIS OF BANGLADESHI MEDICINAL PLANTS USING PROTON INDUCED XRAY EMISSION TECHNIQUE
TRACE AND HEAVY ELEMENTAL CONCENTRATION ANALYSIS OF BANGLADESHI MEDICINAL PLANTS USING PROTON INDUCED XRAY EMISSION TECHNIQUE Open
The medicinal plants grown in Bangladesh have pharmacological importance and the raw material source that may be applied to produce different drugs in pharmaceutical industries.The major and trace elements in medicinal plants are essential…
View article: Chemical Modification on Woven Jute and Nonwoven Wet-Laid Glass Fiber Sheet Reinforced Poly-(&lt;i&gt;ε&lt;/i&gt;-Caprolactone) Composites
Chemical Modification on Woven Jute and Nonwoven Wet-Laid Glass Fiber Sheet Reinforced Poly-(<i>ε</i>-Caprolactone) Composites Open
High-moisture regains nature of cellulosic fibers considered one of the critical drawbacks for jute-based applications. To minimize this by developing better interfacial adhesion, a hydrophobic nonwoven wet-laid glass fiber sheet used the …
View article: Characterization and Fabrication of Pb-Based Perovskites Solar Cells under Atmospheric Condition and Stability Enhancement
Characterization and Fabrication of Pb-Based Perovskites Solar Cells under Atmospheric Condition and Stability Enhancement Open
Optimization of Graphene concentration in optoelectronic properties has been studied which leads to progressive stability based on Graphene-CH3NH3PbI3 employing nanoparticles perovskites solar cells in this work. CH3NH3PbI3 wafer-based het…
View article: An improved fitness function for automated cryptanalysis using genetic algorithm
An improved fitness function for automated cryptanalysis using genetic algorithm Open
Genetic Algorithm (GA) is a popular desire for the researchers for creating an automated cryptanalysis system. GA strategy is useful for many problems. Genetic Algorithms try to solve problems by using genetic processes. Different techniqu…
View article: Analyzing Progressive-BKZ Lattice Reduction Algorithm
Analyzing Progressive-BKZ Lattice Reduction Algorithm Open
BKZ and its variants are considered as the most efficient lattice reduction algorithms compensating both the quality and runtime.Progressive approach (gradually increasing block size) of this algorithm has been attempted in several works f…
View article: Optimal Power Allocations of Different Modulations for Multi Channel Cognitive Radio Systems Using Stackelberg Game
Optimal Power Allocations of Different Modulations for Multi Channel Cognitive Radio Systems Using Stackelberg Game Open
A non-orthogonal multiple access scheme e.g.CDMA based cellular multi-channel cognitive radio network (CRN) is applied in our scheme.Here multiple secondary users share a common set of channels simultaneously.For such an environment, we de…
View article: Thermal Behavior and Magnetic Properties of Nd-Fe-B Based Exchange Spring Nanocomposites Nd&lt;sub&gt;4-x&lt;/sub&gt;Tb&lt;sub&gt;x&lt;/sub&gt;Fe&lt;sub&gt;83.5&lt;/sub&gt;Co&lt;sub&gt;5&lt;/sub&gt;Cu&lt;sub&gt;0.5&lt;/sub&gt;Nb&lt;sub&gt;1&lt;/sub&gt;B&lt;sub&gt;6&lt;/sub&gt; (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) Melt-Spun Ribbons
Thermal Behavior and Magnetic Properties of Nd-Fe-B Based Exchange Spring Nanocomposites Nd<sub>4-x</sub>Tb<sub>x</sub>Fe<sub>83.5</sub>Co<sub>5</sub>Cu<sub>0.5</sub>Nb<sub>1</sub>B<sub>6</sub> (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) Melt-Spun Ribbons Open
Co-rich Nd-Fe-B nanocomposite ribbons with Tb substituted have been fabricated by single roller melt spinning technique of Nd4-xTbxFe83.5Co5Cu0.5Nb1B6 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) alloys in an argon (Ar) atmosphere at a circumferentia…
View article: Thermal and Electrical Properties of Sn-Zn-Bi Ternary Soldering Alloys
Thermal and Electrical Properties of Sn-Zn-Bi Ternary Soldering Alloys Open
Sn-Zn based solder is a possible replacement of Pb solder because of its better mechanical properties. The alloys need to be studied and explored to get a usable solder alloy having better properties. In this work, eutectic Sn-9Zn and thre…
View article: Effect of Bismuth Addition on Structure and Mechanical Properties of Tin-9Zinc Soldering Alloy
Effect of Bismuth Addition on Structure and Mechanical Properties of Tin-9Zinc Soldering Alloy Open
Sn-Zn based solder is a possible replacement of Pb solder because of its better mechanical properties. The alloys need to be studied and explored to get a usable solder alloy having better properties. In this work eutectic Sn-9Zn and three…