Mohammad Nasim Hasan, Sheikh Mohammad Shavik, Khaled Mosharraf Mukut, Kazi Fazle Rabbi, A. H. M. Faisal,
In the present study, non-equilibrium molecular dynamics (MD) simulations have been performed to reveal the effect of solid–liquid interfacial wettability on the evaporation characteristics of thin liquid argon film placed over the flat solid surface. The atomistic model considered herein comprises of a three-phase simulation domain having a solid wall over which liquid argon and argon vapour co-exist. Initially, the system is thermally equilibrated at 90 K for a while after which rapid increase ...
Tópico(s): Heat Transfer and Boiling Studies
2017 - Institution of Engineering and Technology | Micro & Nano Letters
Kazi Fazle Rabbi, Saiful Islam Tamim, A. H. M. Faisal, Khaled Mosharraf Mukut, Mohammad Nasim Hasan,
This study is a molecular dynamics investigation of phase change phenomena i.e. boiling of thin liquid films subjected to rapid linear heating at the boundary. The purpose of this study is to understand the phase change heat transfer phenomena at nano scale level. In the simulation, a thin film of liquid argon over a platinum surface has been considered. The simulation domain herein is a three-phase system consisting of liquid and vapor argon atoms placed over a platinum wall. Initially the whole ...
Tópico(s): nanoparticles nucleation surface interactions
2017 - American Institute of Physics | AIP conference proceedings
Akaash Sharma, Khaled Mosharraf Mukut, Somesh Roy, Eirini Goudeli,
Reactive molecular dynamics (MD) simulations are employed to investigate the coalescence of incipient soot clusters. Initially, one thousand acetylene molecules collide and react with each other, allowing bond breakage and new bond formation upon collision, leading to various species (e.g., linear hydrocarbons, branched polyaromatic hydrocarbons) up to the formation of nascent soot clusters with diameter of up to 3.5 nm. The structure and composition of the formed soot clusters are quantified by the ...
Tópico(s): Atmospheric chemistry and aerosols
2021 - Elsevier BV | Carbon
Yashaswini Seenappanahalli Nanjundaiah, David Wright, Anwar R. Baydoun, W. T. O’Hare, Zulfiqur Ali, Zahangir Khaled, Mosharraf H. Sarker,
Phagocytes such as macrophages are capable of detecting and killing pathogenic bacteria by producing reactive oxygen and nitrogen species. Formation of free radicals in macrophages may be regulated by probiotics or by factors released by probiotics but yet to be identified. Thus, studies were carried out to determine whether cell-free conditioned medium obtained from cultures of Lactobacillus rhamnosus GG (LGG-CM) regulate production of reactive oxygen species (ROS) and/or nitric oxide (NO) in macrophages. ...
Tópico(s): Antimicrobial Peptides and Activities
2016 - Elsevier BV | Biochemistry and Biophysics Reports
Khaled Mosharraf Mukut, Somesh Roy,
This study investigates the formation and evolution of soot and NOX in a high-pressure constant-volume combustion chamber. This work focuses on the effect of multiphase thermal radiation and O2 dilution in ambient/exhaust gases, sometimes also referred to as exhaust gas recirculation (EGR), qualitatively and quantitatively. The spray-A case (n-dodecane as fuel) from Engine Combustion Network (ECN) is used as the target condition. Two different soot modelling approaches have been considered: a semi- ...
Tópico(s): Vehicle emissions and performance
2020 - Taylor & Francis | Combustion Theory and Modelling
Khaled Mosharraf Mukut, Somesh Roy, Eirini Goudeli,
Reactive molecular dynamics (RMD) simulations are becoming popular, with the recent developments in high-performance and efficient computing architecture, for investigating fundamental physico-chemical behaviors of reacting species. Due to the complexity of hydrocarbon systems, characterization of molecules formed during RMD simulations of hydrocarbons can be very challenging for simulations involving a large number of molecules. The novel post-processing utility "MAFIA-MD" – an acronym for "Molecular ...
Tópico(s): Phase Equilibria and Thermodynamics
2022 - Elsevier BV | Computer Physics Communications
Yashaswini Seenappanahalli Nanjundaiah, David Wright, Anwar R. Baydoun, Zahangir Khaled, Zulfiqur Ali, Paul Dean, Mosharraf H. Sarker,
Probiotics are used as microbial food supplements for health and well-being. They are thought to have immunomodulatory effects although their exact physiological mechanism of action is not clear. This study investigated the influence of probiotic Lactobacillus rhamnosus GG conditioned media (LGG-CM) on macrophage phagocytosis of non-pathogenic Escherichia coli HfrC. The gentamicin protection assay was used to study the bacterial killing phases of phagocytosis. Macrophages co-incubated with E. coli ...
Tópico(s): Tryptophan and brain disorders
2020 - Frontiers Media | Frontiers in Cell and Developmental Biology
Khaled Mosharraf Mukut, Anindya Ganguly, Eirini Goudeli, Georgios A. Kelesidis, Somesh Roy,
Incipient soot particles obtained from a series of reactive molecular dynamics simulations were studied to understand the evolution of physical, chemical, and morphological properties of incipient soot.Reactive molecular dynamics simulations of acetylene pyrolysis were performed using ReaxFF potential at 1350, 1500, 1650, and 1800 K.A total of 3324 incipient soot particles were extracted from the simulations at various stages of development.Features such as the number of carbon and hydrogen atoms, ...
Tópico(s): Combustion and flame dynamics
2024 - Elsevier BV | Fuel
Mohammad Nasim Hasan, Kazi Fazle Rabbi, Khaled Mosharraf Mukut, Saiful Islam Tamim, A. H. M. Faisal,
This study focuses on the occurrence of bubble nucleation in a liquid confined in a nano scale confinement and subjected to rapid cooling at one of its wall. Due to the very small size scale of the present problem, we adopt the molecular dynamics (MD) approach. The liquid (Argon) is confined within two solid (Platinum) walls. The temperature of the upper wall of the confinement is maintained at 90 K while the lower wall is being cooled rapidly to 50 K from initial equilibrium temperature of 90 K within ...
Tópico(s): Calcium Carbonate Crystallization and Inhibition
2017 - American Institute of Physics | AIP conference proceedings
Mohammad Nurul Alam, Mohammed Khaled Mosharraf Hossain, Mohammad Mahadi Hasan Mazumder, Ifat Ara Begum, Mohammad Sabbir Hossain, Md Saiful Islam Patwary, Md Noman Hossain,
Introduction: Rheumatoid arthritis (RA) is perhaps the most common inflammatory arthritis, affecting 0.5% to 1% of the general population worldwide. Environmental and genetic influences are important risk factors for pathogenesis of RA. First-degree relatives (FDRs) of RA patients sharing genetic and environmental risk factors for RA may represent as pre-RA state. Since anti-CCP antibody appears years before the onset of RA, it can be used to estimate risk-potential for future development of RA in ...
Tópico(s): Peripheral Neuropathies and Disorders
2024 - | Medicine Today
Khaled Mosharraf Mukut, Anindya Ganguly, Eirini Goudeli, Georgios A. Kelesidis, Somesh Roy,
A series of reactive molecular dynamics simulations is used to study the internal structure of incipient soot particles obtained from acetylene pyrolysis. The simulations were performed using the ReaxFF potential at four different temperatures. The resulting soot particles are cataloged and analyzed to obtain statistics of their mass, volume, density, C/H ratio, number of cyclic structures, and other features. A total of 3324 incipient soot particles were analyzed in this study. Based on their structural ...
Tópico(s): Advanced Chemical Physics Studies
2024 - American Chemical Society | The Journal of Physical Chemistry A
Mohammed Khaled Mosharraf Hossain, Nasima Sultana, Hafizur Rahman, Mohammad Nurul Alam, Md Moshiur Rahman, Noor e Nazar Mst Munira Begum,
Introduction: Epilepsy is a common, chronic and non-communicable disorder of the brain. Carbamazepine, increasing serum cholesterol level, causes adverse cardiovascular and cerebrovascular events. Sodium valproate causes weight gain, hyperinsulinemia and insulin resistance leading to metabolic syndrome. These all causes increased morbidity and mortality of epileptic patients in later life. Objective: to find out the effects of carbamazepine and sodium valproate on serum cholesterol in epileptic ...
Tópico(s): HIV-related health complications and treatments
2023 - | Medicine Today
K M Mosharraf-Hossain, Samprity Islam, Abdul Kalam Azzad, Mostafa Midhat Pasha, Fariha Sultana, Rifat Zia Hossain, Al Amin, Khaled Mahbub Murshed,
This study was carried out in the Respiratory wing, department of Medicine, Bangabandhu Sheikh Mujib Medical University to evaluate the efficacy of spirometric screening for the detection of chronic obstructive pulmonary disease (COPD) in Bangladeshi population. A total number of 400 participants were included in the study [60.50% male and 39.50% female, aged (M+/-SD) 48+/-7.54 years]. Free spirometry was offered to them. Among them 200 were smokers with a smoking duration of 17.07+/-7.50 pack-years ...
Tópico(s): Chronic Obstructive Pulmonary Disease (COPD) Research
2009 - Mymensingh Medical College | Mymensingh Medical Journal
Md. Nashir Uddin, Md. Mahmudur Rahman, Mosharraf Uddin Molla, Md. Khaled Saifullah, L. Yasmin,
Tópico(s): Agricultural pest management studies
2010 - | Bangladesh Journal of Agricultural Research