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Design and analysis of a wideband split-ring integrated hybrid fractal-shaped patch antenna for WiFi, WiMAX, WLAN/5G midband applications

Rani Rudrama Kodali; Md. Shoaib; P. Anjali dkk.

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

A split-ring integrated hybrid fractal antenna has been designed with improved bandwidth from 3 GHz to 9.56 GHz and is presented for WiFi/WiMAX/WLAN/5G midband applications. The proposed antenna is planned to deliver an extended bandwidth and is consists of split-ring resonators integrated with a…

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Network-driven hybrid control for smart grids communications with renewable energy integration

Zeyid T. Ibraheem

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

This article presents a comprehensive simulation framework for performance analysis of hybrid monitoring and control systems in power grids. The model integrates the dynamics of the power grid and the communication network to deal with how these two interact and the effects that arise due to the…

Integrating Quantum Communication with Machine Learning: a review

Ahmed Hussein; Ammar Mohammed

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

Quantum communication and machine learning convergence is one of the promising directions in the development of communication systems that could be secure, efficient, and scalable. The modern communication networks employ quantum communication technologies, such as quantum key distribution (QKD)…

Cyber-electronic warfare threats to UAS: comparative analysis and adaptive resilience framework

Aleksandar Donev; Dimitar Bogatinov

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

Unmanned Aerial Systems (UAS) are increasingly deployed in defense, security, and critical infrastructure missions where reliable communications and navigation are essential for operational effectiveness. The purpose of this paper is to analyze the convergence of cyber threats and electronic…

Threat assessment model in air defense systems using Artificial Neural Networks

Salih Tasdemir; Murat Atan

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

This study aims to automate threat assessment and target assignment processes in air defense systems using a dynamic, learning artificial intelligence-based model. Unlike threat assessment studies in the literature that use different criteria and methods, this study integrates missing data…

Next-Generation Black Box with IOT and Real Time Monitoring

Sachin Srivastava; Arpita Adideo; Vansh Kumar dkk.

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

The traditional black box, or Flight Data Recorder (FDR) and Cockpit Voice Recorder (CVR), has been instrumental in post-crash investigations. Its limitations, such as data loss, difficulty in retrieval from remote or underwater crash sites, and the inability to provide real-time insights, prompted…

Artificial Intelligence reshaping United States of America’s National Defense strategy

Shakh e nabat Randhawa

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

Artificial Intelligence is an emerging, transforming, and revolutionizing technology of the 21st century. It has wide-ranging applications from education and healthcare to defense and security. It is rapidly transforming the modern defense system, making it faster, smarter, and more efficient. The…

Analysis of Optical Telescope Element (OTE) used in James Webb Space Telescope (JWST)

Alan Catovic; Dzan Jasarevic

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

This paper presents an analysis of the James Webb Space Telescope (JWST) Optical Telescope Element (OTE) based on its published optical prescription and system architecture. Using modeling, key optical performance parameters were evaluated, including spot diagrams, footprint diagrams, wavefront…

The wargaming signalling paradox: when military publication precedes political miscalculation

Branko Ruzic

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

This article examines how publishing wargaming results or military planning timelines creates institutional commitment traps leading to strategic miscalculation. Analysing Russia's 2013 Gerasimov article and China's October 2025 15th Five-Year Plan, we identify three paradoxes: publication signals…

Thermal protection strategies for hypersonic space vehicles: aerothermodynamics, TPS configurations, and performance effects

Sakshi Rajput; Charu Soni; Paarthepan K dkk.

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

The Thermal Protection System (TPS) is one of the essential parts for visualizing the aerothermodynamic effect for a hypersonic moving body, i.e., M > 5. This detailed review paper deals with discussing the importance of aerothermodynamic effects, presents an overview of TPS, and highlights the key…

A robust feature engineering approach for Arabic extremist content detection in social media

Ahmed Salman Ibraheem

Defense and Security Studies, Vol. 7 No. 1 · 2026 · Inggris · DOAJ

In this paper, we propose an end-to-end machine learning system to analyze sentiment polarity in extremist (terrorism-related) Arabic content with novel designed features concentrating on linguistic discourse, properties and changes of such contents. We constructed three corpora (V1, V2 and V3)…

Start-ups in camouflage: the convergence of MSMEs, innovation, and Indian defense needs

Rohit Mohite; Ravi Chaurasiya; Sandeep Sharma dkk.

Defense and Security Studies, Vol. 6 No. 2 · 2025 · Inggris · DOAJ

The integration of Micro, Small, and Medium Enterprises (MSMEs), particularly start-ups, into India's defense sector is emerging as a transformative force in modernizing the country's military capabilities. As India pivots towards self-reliance through initiatives like Atmanirbhar Bharat and the…

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Advancing sustainable development goals in aerospace industry through Industry 5.0

Sachin Srivastava; Abhay Dhasmana; Aditya Rana dkk.

Defense and Security Studies, Vol. 6 No. 2 · 2025 · Inggris · DOAJ

The aerospace manufacturing industry is facing increasing pressure to align with the United Nations' Sustainable Development Goals, such as responsible production, climate action, and industry innovation. Industry 4.0 notwithstanding, most of these technologies are concerned with efficiency and…

Recent developments in ballistics

Erdal Camci; Fehim Findik

Defense and Security Studies, Vol. 6 No. 2 · 2025 · Inggris · DOAJ

Ballistics, the science of projectile motion, encompasses the study of objects such as bullets, missiles, and rockets from launch to impact, divided into internal, external, terminal, and forensic ballistics. This paper explores recent advancements in ballistic materials, methods, and…

Vulnerability analysis of critical infrastructures with the Event Tree Technique

Francesco Trinchillo

Defense and Security Studies, Vol. 6 No. 2 · 2025 · Inggris · DOAJ

The vulnerability analysis of a critical infrastructure is certainly a complex and articulated study; therefore, it requires the use of reliable decision support tools. In this article, after a brief review of the state of the art on risk analysis studies for critical infrastructures, a…

Detection of extrasolar planet WASP-10b by differential photometry using amateur optics

Alan Catovic; Dzan Jasarevic

Defense and Security Studies, Vol. 6 No. 2 · 2025 · Inggris · DOAJ

This study presents the detection and characterization of the exoplanet WASP-10b using differential photometry performed with amateur astronomical equipment. An overview of exoplanet properties, detection techniques, and the transit method is provided, followed by a description of the observational…

Inventory woes and logistic bottlenecks: operational challenges in the SCM of the Indian defense sector

Sandeep Sharma; Ravi Chaurasiya; Rohit Mohite dkk.

Defense and Security Studies, Vol. 6 No. 1 · 2025 · Inggris · DOAJ

Supply Chain Management (SCM) in the Indian defense sector represents a strategic function that supports operational readiness and national preparedness. This study undertakes a qualitative analysis based solely on secondary data sources to examine key dimensions of defense logistics operations…

Review of design parameters and optical characteristics of main types of amateur telescopes

Alan Catovic; Dzan Jasarevic

Defense and Security Studies, Vol. 6 No. 1 · 2025 · Inggris · DOAJ

This review examines the design principles and image quality performance of the three primary types of amateur astronomical telescopes: refractors, reflectors, and catadioptrics. The study begins with a thorough overview of existing literature, referencing over 150 sources to provide a theoretical…