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207 articles for “microwaves”
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Cross-Domain Comparative Analysis of Microwave Imaging Systems for Medical Diagnostics and Industrial Testing
Abstract: Microwave imaging is gaining significant traction as a non-ionizing, low-cost, and portable alternative to conventional diagnostic and inspection modalities in both medical and industrial domains. Leveraging the dielectric contrast between healthy and anomalous tissues or materials, microwave imaging systems enable early-stage detection and characterization of pathological or structural anomalies. This review provides a detailed comparative analysis of microwave imaging systems tailored for three critical applications: breast cancer detection, brain stroke …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 39–48 Read article
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Design and Performance Analysis of Microwave Filters and Resonators for High-Frequency Systems
Abstract: Microwave filters and resonators are fundamental components in high-frequency systems, playing a crucial role in signal selection, interference suppression, and frequency stabilization. This review presents a detailed analysis of design methodologies and performance characteristics of microwave filters and resonators used in modern communication and radar applications. Various filter topologies, including low-pass, high- pass, band-pass, and band-stop configurations, are examined with respect to their frequency response, insertion loss, selectivity, and bandwidth. …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 1, 2026 · pp. 8–16 Read article
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A Review on Microwave Absorber Using Agricultural Residues
Abstract: Agricultural residue-based microwave absorbers are the current trend in the microwave communication field and they are becoming an alternative to the conventional microwave absorber made of ceramic materials. In near future, this eco- friendly microwave absorber will completely change the entire perspective of the microwave communication field. As technology is gradually evolving, there is an eventual need for research and development. This article is constructed in a way to propose …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 8, Issue 1, 2020 · pp. 12–18 Read article
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Quantitative Analysis of Eucalyptus Umbellata Essential Oil Extracts from Microwave Assisted Extraction Through GC-MS
Abstract: Microwave assisted extraction was green technology for extraction of essential oil from natural plants and herbs. Microwave extraction extracted the eucalyptus essential oil from eucalyptus umbellata leaves using microwave heating at atmospheric pressure. The two operating parameters involved in MAE, which was extraction time and microwave power. The extracted oil was analyzed through the gas chromatograph – mass spectrometer, which was used for investigating the composition of eucalyptus umbellata essential …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 2, Issue 2, 2015 · pp. 22–26 Read article
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Soil Moisture Retrieval from Brightness Temperature using Passive Microwave Remote Sensing
Abstract: Soil Moisture (SM) data are often a derived product of Microwave Remote Sensing (MRS) satellites. The brightness temperature (Tb) however, is a basic quantity associated with the satellites in the Microwave range and is available as a common data product from all MRS satellites. In this paper an attempt has been made to develop an algorithm to retrieve SM information directly from the Tb values obtained from the Advanced Microwave …
Published in Journal of Remote Sensing & GIS · Vol. 5, Issue 3, 2014 · pp. 10–16 Read article
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Studies on Different Qualitative Traits of Green Tea Grown in Nontraditional Area Processed by Oven Drying and Microwave Drying in Different Power Levels
Abstract: In this study, tea plants (Camellia sinensis L.) were grown in nontraditional region with different soil and climatic characteristics in the southern part of West Bengal. To study the effect of different drying methods for production of green tea is main focus of this paper. Green tea is produced by applying nominal heat treatment targeting to inactivate the polyphenol oxidase and peroxidase enzymes to retain the original polyphenol content. Therefore, …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 7, Issue 1, 2018 · pp. 9–15 Read article
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Microwave Assisted Digestion For Cadmium Analysis in Yoghurt Samples Using Atomic Absorption Spectrophotometer
Abstract: This paper presents an innovative approach for the digestion of dairy products aimed at determining heavy metal concentrations using atomic absorption spectrophotometry. The present study was conducted to assess the concentration of cadmium in different Yoghurt samples. A total of 80 random samples of dairy products (20 each of sour Yoghurt, sweet Yoghurt, flavoured Yoghurt, and homemade Yoghurt) were collected from different areas of Kota city. For the analysis of …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 13, Issue 2, 2024 · pp. 24–39 Read article
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SUSTAINABLE MEMBRANE FABRICATION USING GREEN CHEMISTRY PRINCIPLES: A COMPREHENSIVE REVIEW OF MICROWAVE IRRADIATION, SONOCHEMICAL, AND CONTINUOUS FLOW METHODOLOGIES
Abstract: Membrane-based separation technologies have emerged as indispensable tools in water purification, biomedical engineering, pharmaceutical processing, and environmental protection. However, conventional membrane fabrication processes often rely on hazardous organic solvents, energy– intensive steps, and environmentally taxing conditions. In response to increasing global emphasis on sustainability and regulatory pressures, green chemistry strategies have gained attention for enabling safer, energy-efficient, and eco-friendly membrane production. This review provides a comprehensive and structured analysis of …
Published in International Journal of Membranes · Vol. 3, Issue 1, 2026 · pp. 8–24 Read article
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Arduino Based Voice Recognition Microwave Oven
Abstract: AbstractAs we age, simple everyday tasks become difficult to perform. Simply enjoying a hot nutritious meal may be difficult because of the natural impairments and declines in health conditions. The microwave oven has become an essential household appliance to ensure independent living for the elderly or persons with disabilities. By its very nature it provides flexible and convenient cooking options without the safety concerns of either gas or electric burners. …
Published in Current Trends in Signal Processing · Vol. 10, Issue 2, 2020 · pp. 1–4 Read article
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Study on Wireless Power Transmission using Microwave Technique: Principle and Applications
Abstract: In this paper, a review about the concept of wireless power transmission is presented. Wireless power transmission means, the power is transmitted in the form of microwaves from one place to another, in order to reduce losses during the transmission and distribution of electrical power; and also to deliver energy in location where conventional wires are expensive, inconvenient or impossible. This is also known as microwave power transmission. We present …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 2, 2016 · pp. 31–35 Read article
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Passive Microwave Remote Sensing of Flood in Tropical Regions
Abstract: Space based flood monitoring can provide a systematic and timely solution to the problem of flood mapping. This paper presents a way to detect as well as monitor flood by using passive microwave remote sensing (MRS). The method is based on the use of brightness temperature taken from Passive MRS Satellite. A case study from October 2012 to September 2013 on Dhemaji district of Assam, India shows that the brightness …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 3, 2015 · pp. 6–13 Read article
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The Comparison of Microwave Single Extraction and Sequential Extraction Method for the Fractionation Analysis of Arsenic and Mercury in Saline Sodic Soil
Abstract: The present study investigates the chemical partitioning of arsenic (As) and mercury (Hg) in saline sodic soil samples (SS) from Jamshoro, Sindh Pakistan. The development of Microwave single extraction (MSE) technique based on the reagents used in the BCR three-step sequential extraction scheme (BCR-SES) for partitioning As and Hg in SS. Using CRM BCR-483 as a certified reference material and the standard addition method, the validity of the procedure was …
Published in Research & Reviews : Journal of Ecology · Vol. 11, Issue 1, 2022 · pp. 22–29 Read article
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Microwave based approach for Wireless Power Transmission
Abstract: Today's fast-paced world is characterized by advances in every region, one among that is wireless charging, and gaining applications in the various files. Wireless charging is an innovative technology of transmitting power with an air gap, energy recharging as the end goal. The recent advancement in wireless charging practice, as well as the enhancement of business products, have offered it as a promising alternative for addressing the energy bottleneck of …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 1, 2021 · pp. 6–9 Read article
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Dielectric Responses of Hybrid Polymer Matrix Composites at 2–3 GHz Microwave Frequencies
Abstract: AbstractMeasurement of dielectric properties of polymeric materials in the 2–3 GHz frequency region is very important for strategic applications such as communication electronics, rapid prototyping, and radiation assisted heating. As per international standards for industrial, scientific and medical applications (ISM) 0.9, 2.45 and 5.8 GHz microwaves can be used both for heating and communication purposes, of this 2.45 GHz is most widely used frequency, hence it is important to characterize …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 1–11 Read article
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Wireless Charging of Mobile Phones Using Microwaves
Abstract: Nowadays mobile phones are becoming a basic part of our life. This is one of the most important medium for the communication. The mobile phone batteries have always been problem for recharging. Mobiles have to be put to recharge after the batteries have drained out. In this paper, the main objective is to make the recharging of mobile phones anywhere without charger. This is done only when there is use …
Published in E-Commerce for Future & Trends · Vol. 3, Issue 1, 2016 · pp. 16–18 Read article
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Intelligent Design Approaches in Microwave Engineering Using Machine Learning Techniques
Abstract: In microwave engineering, machine learning (ML) has become a potent technology allowing quicker design cycles, improved modelling accuracy, and automatic optimisation of complicated systems. Recent developments in the use of ML methods to microwave components and systems, including antennas, filters, and high-frequency circuits, are summarised in this study. In the framework of electromagnetic simulation, surrogate modelling, and parameter extraction, supervised and unsupervised learning algorithms are addressed. Moreover, the study looked …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 31–38 Read article
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Studies on Oil Extraction from Pongamia Seeds using Mechanical Expeller and Microwave Heating Technique
Abstract: The extraction of oil from seeds is carried out traditionally by using mechanical expeller. In this study, four configurations of oil extraction systems, namely, single screw, modified single screw, twin screw and microwave assisted oil extraction have been evaluated for oil yield and production or through put rate. Pongamia pinnata seeds have been used as the reference raw materials for this study, both in whole seed form and in crushed …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 3, 2016 · pp. 7–14 Read article
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Comparative Between (LiNbO3) and (LiTaO3) in Detecting Acoustics Microwaves Using Classification
Abstract: AbstractOur work is mainly about detecting acoustics microwaves in the type of BAW (Bulk acoustic waves), where we compared between Lithium Niobate (LiNbO3) and Lithium Tantalate (LiTaO3), during the propagation of acoustic microwaves in a piezoelectric substrate. In this paper, we have used the classification by Probabilistic Neural Network (PNN) as a means of numerical analysis in which we classify all the values of the real part and the imaginary …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 Read article
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Effect of Microwave Drying on Chemical Composition of Some Leafy Vegetables
Abstract: Three selected edible leafy vegetables (Vernonia amygdalina, Ocimum gratissimum and Telfeiria occidentalis) were microwaved to dryness, crushed to powder and analyzed for their proximate, mineral and vitamin C composition. It was investigated that their proximate composition varied between 10.0% to 13.0% (moisture), 10.0% to 20.0% (ash), 1.5% to 3.5% (crude fiber), 10.5% to 19.0% (crude fat), 0.3% to 1.6% (crude protein), 54.2% to 66.3% (carbohydrate) and 314.0 kcal to 389.0 …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 5, Issue 3, 2016 · pp. 18–21 Read article
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Effect of Microwave Energy on Titania Doped YSZ
Abstract: Today, Solid State Oxide Fuel Cells (SOFCs) have become a need of the hour owing to higher efficiency, low emissions and versatile applications. Various materials are being explored to increase its performance and long-term stability, especially at high temperatures. Though YSZ has been the state of art anode material, YZT is emerging as a future material under consideration. Theundoped YSZ and the doped YSZ, i.e. 5 mol% YZT, calcined and …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 3, 2018 · pp. 51–55 Read article