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52 articles for “spectrum sensing”
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Performance Analysis of Wireless Propagation Model to Improve Signal Strength and BER for Wireless Mobile Network
Abstract: AbstractWhenever we setup a network, environment properties such as fading, scattering etc. plays a very important role in choosing spectrum and method of propagation. The spectrum deals with frequency range suitable for communication in a particular environment, and the propagation method deal with channel selection, channel sensing and to perform quality communication throughout the network. To achieve quality output from the network, it is necessary to define network under different …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 2, 2015 · pp. 1–7 Read article
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Isolation, Purification and Characterization of Antimicrobial peptide produced by Saccharomyces boulardii №6569
Abstract: Object: To identify microorganisms that are newly isolated biologically and microbiologically and determine their characteristics by purifying AMP produced by yeast. Methods: We measured the antibacterial activity of AMP using microliquid dilution and turbidity methods and purified them using membrane filtration and gel filtration methods. The molecular weight of AMP produced by Saccharomyces boulardii was measured using Acquity UPLC SQD-2 and MS. Results: We confirmed that yeast-№18, identified biologically and …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 14, Issue 1, 2024 · pp. 7–18 Read article
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A Study on Promoting Physiological Personalities of the Students by Vethathiri Maharishi’s Nine-Center Meditation Using Quantum Magnetic Resonance Analyzer
Abstract: AbstractThe nine-center meditation of simplified Kundalini yoga was formulated by sage Vethathiri Maharishi. It involves the following centers: Mooladhara, Swadhistana, Manipuraga, Anahatha, Visuddhi, Agna, Thuriya, Shakthi Kalam and Shiva Kalam. Meditation is done on all the nine centers, seven of which are endocrine glands located within the physical body and Shakthi Kalam, Shiva Kalam are universal field and absolute space respectively. Meditation commences at Mooladhara Chakra, followed by meditation on …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 3, Issue 1, 2014 · pp. 62–66 Read article
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Efficient Message Captivating Environment in IoT Home Networks
Abstract: The Internet of Things (IoT) concept involves connecting and monitoring physical objects via the internet, generating significant interest among researchers and users due to widespread internet availability. This concept encompasses a broad spectrum of devices, including internet-connected "smart" versions of traditional appliances, novel gadgets designed for an Internet-enabled environment, and Internet-enabled sensors transforming various sectors such as manufacturing, healthcare, transportation, and living spaces. Home automation, an IoT application, has significantly …
Published in International Journal of Mobile Computing Technology · Vol. 2, Issue 2, 2024 · pp. 8–16 Read article
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An Overview on Harnessing Microwave Frequencies for Next-Generation Satellite Communication and Earth Observation
Abstract: In the vacuum of space, where traditional cables cannot reach, humanity has woven an invisible, high-speed infrastructure made of oscillating electromagnetic waves. At the heart of this architecture lies the microwave spectrum—the unsung hero that enables everything from global GPS navigation to real-time climate monitoring. The evolution of global connectivity and environmental monitoring is intrinsically linked to the mastery of the microwave spectrum. As satellite constellations transition from traditional Geostationary …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 15, Issue 1, 2026 · pp. 1–6 Read article
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Comparison of Nested PCR and Real Time PCR of Herpes Simplex Virus Infection in Encephalitis Cases
Abstract: Introduction: Herpes simplex virus (HSV) causes a wide spectrum of clinical manifestations in the central nervous system (CNS). Presently, the development of effective antiviral therapy has resulted in an increased need for the rapid and sensitive diagnosis of HSV infections. Aims: To evaluate the usefulness of real-time PCR for diagnosing HSV encephalitis (HSE), we prospectively compared results of real-time PCR and nested PCR, using clinical samples. Methods and Material: viral …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 34–36 Read article
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MAP: The Invisible Shield Protecting Our Product's Journey
Abstract: Modified Atmosphere Packaging (MAP) has established itself as one of the most reliable and widely adopted preservation technologies in the modern food industry, offering a practical means of extending shelf life while maintaining the sensory and nutritional integrity of food products throughout storage and distribution. The fundamental working principle revolves around deliberately altering the gaseous composition within sealed packages, primarily through the strategic use of carbon dioxide, nitrogen and oxygen …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 15, Issue 2, 2026 · pp. 52–58 Read article
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Enhancement of Gas Sensitivity of Composites of Carbon Derived from Rubber Tree and SnO2 to Detect Ethanol Vapor at Room Temperature
Abstract: Films of composites of activated carbon powder prepared from saw dust derived from core of rubber tree (Hevea Brasiliensis) and tin oxide (SnO2) were fabricated using the doctor blade method. Carbon powder was activated using phosphoric acid at 500°C for 45 minutes. The weight ratio carbon/SnO2 varied from 0 to 12% in steps of 2. The structural, optical and morphological properties of films were investigated using XRD patterns, UV-visible spectrums …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 2, 2025 · pp. 31–44 Read article
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Red emissive MSA capped CdTe quantum dots for cell imaging
Abstract: The changes in the optical and electronic properties of the materials due to the quantum confinement effect in semiconductor nanoparticles have attracted huge interest in the scientific community. Within the semiconductor nanoparticles, the quantum dots (QDs) deserve a special position due to their high quantum confinement effect and unique optoelectronic properties. Among the semiconductor quantum dots, CdTe attracts more attention due to its easy manufacturing, large Bohr exciton radius, and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 716–721 Read article
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New Ideas in Quantum RF
Abstract: Quantum RF Innovations is leading the way in next-generation wireless technologies by connecting old radio frequency systems with new quantum- enabled solutions. Our goal is to change the way signals are processed, communicated, and sensed by using advanced quantum principles and cutting- edge RF engineering. We are creating a new class of devices and systems that can achieve ultra-low-noise signal amplification, unprecedented spectrum control, and quantum-secured communication through interdisciplinary research …
Published in International Journal of Radio Frequency Innovations · Vol. 3, Issue 2, 2025 · pp. 35–43 Read article
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Optimization of gas sensitivity of CuO/carbon composites with carbon particles synthesized from acacia auriculiformis branches
Abstract: Carbon particles fabricated from the core of acacia tree branches were utilized to synthesize CuO/carbon composite films. The gas sensing properties of these films grown on glass substrates using the doctor blade method were measured in 1000 ppm of methanol vapor at the room temperature. All the films were annealed at 75 0C for 1 hour in air. The structure, the optical band gap and the surface morphology of the …
Published in International Journal of Membranes · Vol. 1, Issue 1, 2024 · pp. 22–30 Read article
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Advance Mineral Practices Techniques
Abstract: In recent years, the field of mineral processing has witnessed significant advancements aimed at improving the efficiency, sustainability, and economic viability of mineral extraction and processing techniques. These advancements encompass a broad spectrum of practices, from ore sorting and comminution to flotation and tailings management. This paper reviews the latest innovations in mineral processing, focusing on key areas such as: Ore Sorting and Pre-Concentration: Implementation of sensor-based sorting technologies that …
Published in International Journal of Minerals · Vol. 1, Issue 1, 2024 · pp. 16–22 Read article
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AI-Powered Defense: Advancing Cybersecurity Through Artificial Intelligence Innovations
Abstract: In the current landscape of escalating cyber threats and increasingly sophisticated attack vectors, integrating artificial intelligence (AI) within cybersecurity strategies has become a critical step forward. This study explores the role of AI in strengthening cybersecurity by utilizing its strengths in data analysis, pattern recognition, and predictive modeling. Through AI, organizations can greatly enhance their ability to detect and respond to threats. Machine learning algorithms enable ongoing adaptation to new …
Published in International Journal of Information Security Engineering · Vol. 4, Issue 1, 2026 · pp. 35–41 Read article
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Gas Sensors Fabricated using Carbon Powder Derived from Dried Banana Peels Waste to detect Methanol, Ethanol, Acetone Vapors and Carbon Dioxide Gas
Abstract: Low cost and environmentally friendly activated carbon powder was synthesized using waste banana peels. Phosphoric acid was utilized as activation agent. Doctor blade method was employed to fabricate films of activated carbon on conductive or nonconductive glass substrates. Films were subsequently annealed at 70 0C for 30 minutes in air. According to XRD patterns, single phase of activated carbon was crystallized in thin film form. Carbon prepared from banana peels …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 14–25 Read article
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Development and Formulation of Chocolate-coated Seeds Bar
Abstract: Vitamins E, D, and B6 minerals like zinc and selenium and amino acids like glutamine all play a role in the body's immune system development. Edible seeds are a great source of protein, healthy fats, fiber, and important minerals like magnesium, potassium, calcium, iron, and zinc in addition to vitamins B1, B2, B3, and E. Examples of edible seeds include pumpkin, flax, sesame, sunflower, mustard, amaranth, oat, barley, black rice, …
Published in International Journal of Nutritions · Vol. 1, Issue 1, 2024 · pp. 1–12 Read article
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Investigation of Electronic Transport Characteristics of Co-Doped B40 Molecular Junction for Detection of Isoprene: A DFT Study
Abstract: The early identification of lung cancer is crucial and it can be diagnosed non-invasively by assessing the exhalation. Analysing a patient's breath profile can reveal malignant growths in their lungs. In this work, B40 co-doped with indium and iron is used as a molecular junction to sense isoprene, a well-known lung cancer biomarker present in the exhalation. The electronic transport characteristics of the molecular junction designed for isoprene detection are …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 907–916 Read article
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An overview of Technologies for the Smart Grid
Abstract: There is broad unanimity regarding the need to enhance the smart grid (SG). To deliver a reliable electricity supply, the SG combines electrical grids and communication infrastructures to create an intelligent electricity network. Numerous cutting-edge communication technologies with the potential to considerably raise the general effectiveness of power grids have been identified for SG applications. The challenges and uses of communication technology in Singapore are covered in this study. Three …
Published in Journal of Communication Engineering & Systems · Vol. 12, Issue 2, 2022 · pp. 25–36 Read article
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Clinical Spectrum and Prognosis of Patients with Septic Shock
Abstract: Septic shock is the leading cause of mortality in hospital patients. Closer observation and early treatment can influence the outcome. The present study is undertaken to study the pattern of sepsis and the factors affecting morbidity and mortality in adult patients with septic shock in the ICU. Adult patients admitted in ICU, Mamata General Hospital, Khammam, with diagnosis of sepsis during one-year period from August 2012 to September 2013 were …
Published in Research and Reviews: A Journal of Health Professions · Vol. 4, Issue 1, 2014 · pp. 1–4 Read article
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Copper Sulfide Semiconducting Nanoparticles for Antibacterial Applications: Synthesis Strategies, Mechanisms and Performance – A Review
Abstract: Copper sulfide nanoparticles (CuS NPs) have drawn growing attention as a next-generation antibacterial platform, owing to their tunable structural, optical, and catalytic properties. This review consolidates current evidence on CuS NP synthesis, mechanisms, and antibacterial performance, comparing chemical and green synthesis routes alongside the effects of morphology, doping, and surface modification. Mechanistically, CuS NPs act through several overlapping pathways, including reactive oxygen species generation, bacterial membrane disruption, ion release, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 236–253 Read article
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Expanding Hicks Contraction Theory, Multi-Valued Mappings in Generalized b-Menger Spaces
Abstract: This paper extends the Hicks contraction theory to multi-valued mappings within generalized b-Manger spaces, a class of metric-like structures that accommodate more flexible distance functions. By introducing new definitions, such as generalized admissibility conditions and weak compatibility in the multivalued sense, we provide a comprehensive analysis of how these contractions behave in broader topological and metric contexts. Our approach systematically generalizes classical contraction principles by relaxing conventional constraints, thereby broadening …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 12, Issue 1, 2025 · pp. 1–05 Read article