KOS Journal of Science and Engineering

About Journal

Science and Engineering Journal is a peer-reviewed publication that covers a wide range of topics in the fields of natural and applied sciences, as well as engineering. The journal publishes original research, reviews, and technical papers that explore innovations, methodologies, and practical applications across disciplines such as physics, chemistry, materials science, civil, mechanical, electrical, and environmental engineering. Its mission is to promote the advancement of scientific knowledge and engineering solutions that address contemporary challenges and contribute to technological progress. The journal serves as a platform for researchers and practitioners to share findings, collaborate, and drive forward the development of both fundamental and applied sciences.

Research Topics

Scientific Research; Scientific Method; Experimentation; Data Analysis; Innovation; Discovery; Laboratory Techniques; Theoretical Science; Applied Science; Interdisciplinary Research; Classical Mechanics; Quantum Mechanics; Thermodynamics; Electromagnetism; Optics; Nanotechnology; Nuclear Physics; Organic Chemistry; Inorganic Chemistry; Biochemistry; Chemical Engineering; Material Science; Catalysis; Polymer Science; Spectroscopy; Geology; Meteorology; Climatology; Oceanography; Environmental Science; Renewable Energy; Sustainability; Pollution Control; Waste Management; Hydrology; Renewable Energy Systems; Green Engineering; Human-Computer Interaction; Bioinformatics; Semiconductor Technology; Circuit Design; Power Systems; Embedded Systems; Signal Processing; Telecommunications; Wireless Networks; Photonics; Control Systems; Smart Grids; Infrastructure Engineering; Smart Cities; Urban Planning; Sustainable Construction; Earthquake Engineering; Geotechnical Engineering; Bridge Design; Hydraulics; Traffic Engineering; Highway Design


Latest Articles

Research Article | Volume: 1, Issue: 1 Published Date: June 13, 2025

A Review of Quantum Entanglement and Spiritual Implications: Exploring the Universe's Fate

Authors: Belay Sitotaw Goshu

Abstract: The exploration of quantum entanglement and its spiritual implications bridges two profound realms: the scientific and spiritual. Quantum entanglement reveals a mysterious interconnectedness where particles remain linked across vast distances, challenging classical notions of separateness. This concept mirrors spiritual teachings, such as the oneness described in Hindu Advaita Vedanta, indigenous traditions, and Buddhist philosophies. These traditions emphasize a unified existence, where every being is interconnected, echoing the non-locality found in quantum mechanics.


Research Article | Volume: 1, Issue: 1 Published Date: June 12, 2025

Mathematical Modeling of Vibrational Modes in Polygonal Musical Instruments: A Comparative Analysis of Triangular and Square Geometries

Authors: Belay Sitotaw Goshu

Abstract: The vibrational properties of musical instruments, such as triangular and square geometries, significantly influence their timbre, yet computational models require validation to ensure accuracy in predicting natural frequencies and mode shapes. This study aimed to validate mathematical models of triangular (side length 0.2 m) and square (side length 0.15 m) musical instruments, both with a perimeter of 0.6 m, using finite element analysis (FEA), and to compare their acoustic characteristics. FEA was implemented via the Euler-Bernoulli beam equation, with convergence analysis (N = 50, 100, 200) and analytical comparisons ensuring model accuracy. Material properties included a Young?s modulus of 200 GPa, density of 7850 kg/m?, and rod radius of 0.005 m.


Research Article | Volume: 1, Issue: 1 Published Date: June 12, 2025

Geopolitical Analysis: The Ukraine War

Authors: Maria Del Carmen Diaz Naranjo

Abstract: The contemporary conflict in Ukraine has emerged not merely as a regional military engagement, but as a transformative event that reshapes the global geopolitical order. Central to the analysis is the graphical visualization of the tripolar balance-an interplay among the United States, Russia, and China-that forms the nucleus of evolving international relations in the context of the Ukraine war.


Research Article | Volume: 1, Issue: 1 Published Date: May 31, 2025

AI-Driven Brain-Computer Interface Motorcycle for Fully Paralyzed Users: A Sustainable and Adaptive Mobility Solution

Authors: Mahmoud Labib

Abstract: This research presents a novel AI-driven Brain-Computer Interface (BCI) motorcycle designed to empower individuals with total paralysis by enabling hands-free, mind-controlled navigation. Utilizing non-invasive EEG signal acquisition at 500 Hz, a convolutional neural network (CNN) with 92.7% classification accuracy, and a photovoltaic-electric hybrid power system yielding 35 km range, this prototype offers an adaptive, eco-friendly, and scalable mobility solution. Validated through simulations (Unity 3D, 91.2% navigation success) and physical prototyping (400 ms latency), the system aligns with UN Sustainable Development Goals (SDGs) 7, 10, and 11, addressing accessibility and sustainability challenges.


Research Article | Volume: 1, Issue: 1 Published Date: May 30, 2025

A New Paradigm for the Hearing Theory

Authors: Jan Myjkowski

Abstract: The first part of the paper provides a general overview of the paradigm for the hearing theory. Attention was drawn to the need for creating a new paradigm and to the problems with its acceptance. It is necessary to supply good documentary evidence for the big change between the old, recognised paradigm and the new one, based on new assumptions, new science and solid evidence. The second part briefly describes, in bullet points, the most important problems of Bekesy's travelling wave theory which either have not been explained or described incorrectly.