Radius: Journal of Science and Technology
An International Bi-Annual Interdisciplinary Peer-Reviewed Refereed Journal
About the Journal
Radius: Journal of Science and Technology is an open-access international bi-annual interdisciplinary peer-reviewed refereed journal that publishes high-quality research dedicated to advancing the frontiers of Science and Technology. It serves as a platform for the propagation and discussion of significant research findings, cutting-edge innovations, and …
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- High Standards: Rigorous peer review ensures academic excellence.
- Interdisciplinary: Publishes diverse and innovative research across science and technology.
- Global Reach: Broad international readership for maximum impact.
- Rapid Publication: Streamlined process for timely research dissemination.
- Author Support: Comprehensive guidance from submission to publication.
- Open Access: Reach a wider audience with accessible research.
Choose Radius: Journal of Science and Technology for a trusted platform that values innovation and excellence.
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For Indian Authors: ₹ 2500
For others: $ 80
Article Processing Charge
03 Days
Median time from submission to first editorial decision before peer review
10 Days
Median time from submission to first editorial decision before peer review
15 Days
Median time from Submission to final acceptance after peer review and any author revisions
Editor-in-Chief View Full Editorial Board
Editor-in-Chief
Prof. (Dr.) Ajay Singh Verma
Uttaranchal University, Dehradun, Uttarakhand, India
Articles
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Current Issue
Caloric Study of the Bulk Chalcogenide (Bi1Te15Se84-xPbx) Quaternary Alloy System
Open Access | Original Article | 13 December 2024 | Article Number: 241006
Abstract
Bulk glasses of the composition Bi1Te15Se84-xPbx, where 0 ≤ x ≤ 8, were synthesized by conventional melt-quenching methods. The crystallization and thermal kinetics of these alloys were investigated through differential thermal analysis (DTA) at various heating rates of 5 K/min, 10 K/min, 15 K/min, and 20 K/min. Key kinetic parameters, including the activation energies, were derived from models like Kissinger’s and Augis-Bennett’s using the functional relationship between heating rate and glass transition temperature (Tg). Interaction of glass transition and crystallization activation energies were tracked as a function of different heating rates and compositions. The amorphous-to-crystalline phase transition, glass-transition behavior, and glass-forming ability of the chalcogenide alloys are described in detail. Important thermal parameters: activation energy for crystallization and glass transition, fragility index, and Hruby’s parameter were calculated. The empirical methods were used to estimate Ec and Eg. The average activation energy for crystallization is (122.93±2.95) kJ/mol, whereas for glass transition, it is (203.45±4.12) kJ/mol. The reduced glass transition temperature (Trg) together with the fragility index (Fi) confirmed that the glassy alloy derived from a good glass-forming liquid. The focus of this manuscript is the preparation of glass using the conventional melt-quenching technique and the study of their structural and thermal properties, which is the fundamental basis for this research work. Read more
View PDFComprehensive Review of Power Electronic DC-DC Converters in Electric Vehicle Applications
Open Access | Original Article | 27 October 2024 | Article Number: 241005Abstract
The rapid rise of electric vehicles (EVs) presents a sustainable alternative to traditional internal combustion engine (ICE) vehicles, significantly reducing greenhouse gas emissions and improving overall vehicle efficiency. This paper investigates the critical role of power electronic converters, especially DC-DC converters, within EV powertrains. Emphasizing the necessity of achieving appropriate voltage levels for battery and motor operation, it explores conventional and advanced DC-DC converter topologies, including the conventional boost converter (BC) and the interleaved four-phase boost converter (IBC). Additionally, the paper highlights the growing importance of wide bandgap semiconductors (WBGSs) such as silicon carbide (SiC) and gallium nitride (GaN) in enhancing converter performance by enabling higher switching frequencies, improved thermal operation, and reduced losses. Through a comprehensive analysis, the study reveals the potential of WBGSs to improve the efficiency and reliability of EV charging systems, power converters, and electric motors, making them crucial for future EV advancements. This work aims to underline the importance of power electronic converter design and control in shaping the future of electric vehicles. Read more View PDFOxide Double Perovskites: Bridging the Gap in Photovoltaic and Thermoelectric Applications
Open Access | Original Article | 27 October 2024 | Article Number: 241004Abstract
In response to the 20th-century surge in urban migration and the growing need for digital devices, global energy consumption witnessed a steady rise, leading to an energy crisis. To address this, the researcher has turned their attention to renewable energy sources, such as solar cells and thermoelectric generators. However, the efficiency and stability of these materials remain challenging, especially when constructed from toxic or less abundant elements. Oxide double perovskite materials have gained attention due to their tuneable properties and unique crystal structure, making them suitable for photovoltaic and thermoelectric applications. This study aims to study oxide double perovskite materials’ structural, optical, and thermoelectric properties for exploring their potential in energy conversion applications. This comprehensive study not only contributes to oxide double perovskite materials but also paves the way for future research endeavours. The imperative for both experimental and theoretical exploration is emphasized to unlock the full potential of these compounds in the dynamic landscapes of optoelectronics and thermoelectric devices, fostering sustainable and efficient energy conversion technologies. Read more View PDFAdvancing Healthcare Through Adaptive Manufacturing: Insights into Emerging Trends and Technologies
Open Access | Original Article | 27 October 2024 | Article Number: 241003Abstract
As concerns technological developments, the healthcare industry has always been at the cutting edge, from the invention of vaccines to state-of-the-art medical technology. In recent years, there has been an increasing interest in the implementation of adaptive manufacturing technologies in health care. Adaptive manufacturing or 3D printing processes involve the creation of three-dimensional objects from a digital file. This kind of technology can transform healthcare people into industries as it allows the production of personalized medical appliances, prosthetics, or even human tissue. This paper will focus on the future trends and technology emerging in adaptive manufacturing that are enhancing healthcare. Read more View PDFExploring Halide Double Perovskites for Enhanced Efficiency in Photovoltaic Application
Open Access | Original Article | 27 October 2024 | Article Number: 241002Abstract
The investigation of halide double perovskites has gained significant attention in recent years due to their promising potential in photovoltaic applications. These materials, characterized by their unique structural, electronic, and optical properties, offer an alternative to traditional lead-based perovskites, addressing environmental and stability concerns. This study focuses on the structural, electronic, and optical properties of halide double perovskites, exploring their suitability for use in solar cells. By employing computational methods such as density functional theory (DFT), we analyze the crystal structure, band gap, and electronic transitions of these materials, aiming to understand how their intrinsic properties can be tuned for optimal photovoltaic performance. The results indicate that halide double perovskites exhibit excellent optical absorption in the visible spectrum, a desirable trait for efficient solar energy conversion. Additionally, the band gap of these materials can be fine-tuned through compositional changes, allowing for enhanced electronic performance. The stability of halide double perovskites, particularly in comparison to lead-based counterparts, is also highlighted as a key advantage for long-term use in photovoltaic devices. This research underscores the potential of halide double perovskites as a viable alternative for next-generation solar cells, offering a balance between high efficiency, environmental sustainability, and stability. The findings contribute to the growing body of knowledge on perovskite materials and pave the way for further experimental studies aimed at improving photovoltaic device performance using halide double perovskites. The significance of our study is to develop the halide double perovskites and their photovoltaic application. Read more View PDFAn overview on Taguchi’s method employed for product quality improvement and its control
Open Access | Original Article | 05 October 2024 | Article Number: 241001Abstract
Genich Taguchi, a Japanese engineer and statistician, developed a methodology for improving and controlling the quality of produced goods. His robust optimization technique is widely used in the manufacturing industry to reduce variations in product quality. The Taguchi method uses orthogonal arrays to systematically study the effect of multiple variables on a product’s quality, allowing engineers to pinpoint the optimal settings for production processes. This overview delves into the foundational principles of Taguchi’s method, discussing its applications, benefits, and limitations. By analyzing various case studies, we illustrate how the Taguchi method has been effectively applied across diverse industries to enhance product reliability, minimize defects, and reduce costs. Our findings suggest that while Taguchi’s method has significant advantages in quality improvement, it may not be suitable for all types of processes, particularly those requiring high precision or involving complex interactions among variables. This article aims to provide a comprehensive understanding of Taguchi’s method, serving as a resource for engineers and quality control professionals seeking to improve product quality through systematic experimentation. Read more View PDFArchives