Academic Excellence • Open Access • Global Reach
UU Academic Repository
Discover, preserve, and share the scholarly achievements of Uttara University’s faculty, researchers, and students — accessible to the world.
Preserved Research
Global Open Access
Permanent Archiving
Recent Submissions
Uttara University honours July 2024 Movement martyrs, injured participants
(The Business Standard, 2026-08-03)
This news article reports on Uttara University's tribute to the martyrs and injured participants of the July 2024 Movement. The university organized a commemorative program to honour those who sacrificed their lives and those who sustained injuries during the movement. The event brought together university authorities, faculty members, students, and staff to pay their respects and acknowledge the significance of the movement in Bangladesh's recent history. Speakers emphasized the values of courage, justice, democracy, and national unity, highlighting the role of young people in advocating for social change. The program included remembrance activities, expressions of solidarity with the victims and their families, and a reaffirmation of the university's commitment to preserving the legacy of the July 2024 Movement. The article documents Uttara University's institutional recognition of the movement and its efforts to promote historical awareness, civic responsibility, and respect for those who contributed to the nation's democratic aspirations.
Feasibility study of floating solar photovoltaic systems using techno-economic assessment and multi-criteria decision-making method: A case study of Bangladesh
(Elsevier, 2024-09-17) Sunny, M. R.,; Kabir, M. A.,; Sarker, M. S. Z.,; Aghaloo, K.,; Ali, T.
Many developing countries with abundant solar resources and rich history of agriculture, face overpopulation and land shortage issues. Floating solar photovoltaics (FSPVs) do not compete with agriculture for land and offer higher energy potential than land-based photovoltaics (LBPVs). For feasibility and site suitability evaluation of FSPVs, this study proposes an integrated approach of techno-economic assessment (TEA) and multi-criteria decision making (MCDM), based on a case study of Bangladesh. The system advisor model (SAM) was used to conduct TEA, evaluating the potential of nine FSPV sites on a regional scale using ten criteria. Combined compromise solution (CoCoSo) was implemented to determine the optimum site. Bergobindopur lake was ranked top, with the highest energy yield and lowest cost of energy of 1564 kWh/kW and $0.055/kWh respectively. Case study of Bergobindopur revealed buy-all-sell-all electricity tariff was more profitable than net billing and net metering. Energy generation was found to be influenced by tilt angle and soiling. Sensitivity analyses demonstrated the superiority of FSPVs over LBPVs for varying electricity prices, degradation and discount rates, project durations, and investor's equities. Longer project durations and lower equities resulted in higher profits for investors. The proposed approach contributes to the expansion of FSPV in land-constrained areas.
A comprehensive study on geometric shape optical soliton solutions to the time-factional nonlinear Schrödinger-Hirota equation
(Elsevier B.V., 2024-09-12) Khatun, M. M.,; Khan, S.,; Akbar, M. A.
In this study, we investigate the analytical soliton solutions of a fundamental model, namely the nonlinear Schrödinger-Hirota equation, in the context of beta time-fractional derivative. We adopt the (ω′/ω, 1/ω)-expansion method, which is a reliable and straightforward approach to extract fresh and general soliton solutions in terms of hyperbolic, trigonometric, and rational functions. The solitons include anti-kink, anti-bell-shaped, bell-shaped, and periodic solitons. These solitons have significant applications in various scientific fields, such as optical fiber communications, signal processing, plasma physics, and trans-oceanic data transfer. This study demonstrates the significance of fractional-order differentiation in revealing new solitons. We also provide a comprehensive comparison with existing literature in normal and anomalous dispersion regions, highlighting the uniqueness of the solutions. Moreover, the graphical representations are used to illustrate the properties and potential applications of these solitons. This research might contribute to the advancement of nonlinear optical research and technology.
Climate data dynamics: A high-volume real world structured weather dataset
(Elsevier, 2024-11-30) Zubair, M.,; Mahee, M. N. I.,; Reza, K. M.,; Salim, M. S.,; Ahmed, N.
The dataset at hand is a unique resource, officially procured from the Bangladesh Meteorological Department, the sole government institution that diligently monitors weather through 35 strategically placed weather stations across the nation. This dataset is a treasure trove of actual data spanning several decades, from the inception of each weather station to the present. It has been meticulously restructured and processed into four (Rainfall, Temperature, Humidity, and Sunshine) key weather parameters, presented in a highly organized and accessible format. This format not only facilitates its use in the machine-learning training process but also opens up avenues for its application in climate research, weather forecasting, and a myriad of other statistical and machine-learning applications.
Analytical solutions to the (2+1)-dimensional cubic Klein–Gordon equation in the presence of fractional derivatives: A comparative study
(Partial Differential Equations in Applied Mathematics .Elsevier, 2024-11-30) Al Woadud, K. A.,; Islam, M. J.,; Kumar, D.,; Khan, A. R.
The study seeks to obtain new analytical solutions for the (2+1)-dimensional cubic Klein–Gordon (cKG) equation using the beta derivative. By applying the unified method to the equation, various types of solitons have been generated, including periodic solitons, periodic solitons with equal and unequal wavelengths, bright solitons, and periodic singular solitons with unequal wavelengths. To demonstrate the fundamental dynamics of the soliton family, three-dimensional and two-dimensional graphs showcasing various novel solutions that satisfy the relevant equations are provided. In relation to fractionality, the bright waveform retains its overall shape, but its smoothness improves as the fractional parameters increase. Conversely, periodic wave solutions show enhanced periodicity as the fractional parameters rise. Additionally, the study provides a comprehensive comparison of solutions derived from models utilizing conformable, M-truncated, and beta derivatives. The investigation explores the effect of the fractional parameter on soliton amplitude, using graphs to illustrate this impact by assigning specific values to the fractional parameter. The properties of the waves can be modified through changes to the model's parameters to produce the appropriate wave profiles. Consequently, the solutions we obtained could be particularly valuable for analyzing physical problems associated with nonlinear complex dynamical systems.