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266 articles for “patches”
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Patch Testing
Abstract: Contact dermatitis is an inflammatory disorder (erythema, edema and vesiculation) caused by repeated contact with an exogenous or noxious agent progressed to skin sensitivity or directly damage the skin. The prevalence of work-related Allergic Contact Dermatitis e.g., hair dressing, construction work, cleaning and health care biomedical devices etc. accounts for 20% in the general population. Patch test are standard method for diagnosing chronic dermatitis or Allergic Contact Dermatitis (ACD). Additional …
Published in Research and Reviews : A Journal of Immunology · Vol. 11, Issue 3, 2021 · pp. 33–41 Read article
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Gain Enhanced 2.4 GHz Slotted Rectangular Microstrip Patch Antenna with FR-4 Epoxy Substrate
Abstract: Applications that use the Internet of Things (IoT) must be combined with wireless networking technologies. This makes it easy to get to the application data. The wireless communication system is a key part of the infrastructure for the Internet of Things. It acts as a bridge for two-way connections to gather data and send control messages. In this work, HFSS software is used to create a rectangular microstrip patch antenna …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 20–26 Read article
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Advancements in Buccal Patch Drug Delivery Systems: A Comprehensive Review of Evaluation Parameters
Abstract: The most dependable delivery method is buccal patches because it offers many improvements over alternative methods.This delivery method circumvents the hepatic first pass metabolism to deliver the medication into the systemic circulation. Buccal patches are inserted between the cheek and gums, where they dissolve and absorb through the buccal cavity's mucosal membrane. Polymers can be used to control the drug's delivery, and intelligent polymeric systems are a good option for …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 15, Issue 2, 2025 Read article
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Interfacial Performance and Structural Stability of Repaired vs. Replaced Polymer-Based Composites: A 3-Year Retrospective Analysis of 'Patch-up' Restorative Engineering
Abstract: Objective: This retrospective study aimed to evaluate the clinical longevity and interfacial success of repairing aged polymer-based composites versus complete replacement, focusing on the integration between the existing polymer matrix and the new restorative material. Materials and Methods: A retrospective clinical audit was conducted on 50 cases (n = 50) of posterior restorations with localized defects. The sample was categorized into: Group A (n = 25), where defective sites were …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 180–187 Read article
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A Comparative Study on Effect of Dielectric Covers on Microstrip Patch Antenna
Abstract: In this paper, the square patch microstrip antenna covered with different dielectric covers affects are studied at different heights above the patch and also compared their performance parameters with theoretical and experimental. The square patch antenna has been designed at 2.4GHz on airlon diclad substrate, whose dielectric constant is 2.2 and thickness is 1.6mm and simulated using HFSS simulation software. The affect of dielectric cover above the patch at height …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 16–20 Read article
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Analysis of Transdermal Patches: A Surgical Perspective
Abstract: In addressing the challenges associated with oral drug administration, the introduction of a transdermal drug delivery system has proven to be a valuable alternative. This system involves the application of a transdermal patch onto the skin, facilitating the controlled release of a specific medication through the skin and into the bloodstream. The primary objective is to enhance the healing process of the affected area of the body. Notably, the transdermal …
Published in Research and Reviews : Journal of Surgery · Vol. 12, Issue 3, 2023 · pp. 10–13 Read article
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Enhancing Terahertz Patch Antennas: The Role and Impact of Graphene
Abstract: Terahertz (THz) communication systems are gaining increasing attention because of their ability for high-speed wireless data transmission, making them suitable for the 6th-generation wireless applications. Patch antennas, commonly used in these systems, play a crucial role in signal transmission and reception. There are various types of conductive materials available for patch antennas, but the unique characteristics of graphene make it a suitable choice. This study explores the significance and contribution …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 2, 2025 · pp. 41–51 Read article
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Design and Simulation of E-Shape Micro-strip Patch Antenna at 2.45GHz
Abstract: AbstractThis paper presents comparison of rectangular micro strip patch antenna and E-Shaped micro strip patch antenna operating at 2.45GHz. Two parallel slots are made into the basic rectangular patch design of micro strip antenna which resulted into desired E-shaped patch. The basic design consist of inset feed type and we have used dielectric substrate Fr4 epoxy whereas E-shaped patch consist of coaxial probe and RT Duroid as substrate. Both the …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 17–24 Read article
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Design and Simulation of Triple Band Microstrip Patch Antenna for Ku-band, K-band and Ka-band Applications
Abstract: AbstractThis paper represents a microstrip patch antenna for future 5G-communication technology. The proposed antenna designs are simulated and their performances are analyzed for different parameters like lower return losses, higher gain, voltage standing wave ratio (VSWR), current distribution, far field radiation and wide bandwidth performance for the tri-frequency band operation in Ku band (12–18 GHz),K-band (18–27 GHz) and Ka-band (27–40 GHz) as per the specified IEEE standard. The proposed antenna …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 1, 2020 · pp. 26–33 Read article
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Performance Enhancement of Microstrip Patch Antenna Using Metasurface
Abstract: Performance enhancement of microstrip patch antenna using metasurface provides a thorough analysis of how a metasurface integration technique might improve the performance of a microstrip patch antenna. The 4×4 array of square components metasurface measuring 51.6 × 51.6 × 3.1016 mm is merged with the microstrip patch antenna, which has dimensions A=13.5 mm, B=12 mm, and C=1.2 mm. The radiation box dimensions (100 mm × 100 mm × 55 mm), …
Published in Journal of Microwave Engineering and Technologies · Vol. 11, Issue 3, 2024 · pp. 20–27 Read article
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Optimized Rectangular Microstrip Patch Antenna for Wireless Communications
Abstract: The design is for a microstrip patch antenna that is rectangular. The wireless local area network [WLAN] resonance frequency of the suggested antenna is 2.4GHz. The antenna's frequency selection has made it ideal for use in wireless local area networks, or WLANs. The antenna design is optimised using the optometric feature of the High Frequency Structure Simulator software (HFSS) to increase the accuracy and efficiency of the suggested antenna. HFSS …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 12, Issue 1, 2025 · pp. 37–47 Read article
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Patch Antenna by using Tunable Metamaterial for Dual Band Application
Abstract: AbstractIn this paper, a novel compact microstrip antenna, designed on FR4 substrate, is proposed. Here, a compact Square patch antenna is designed in such a way that a layer of metal between the patch load and the radiating patch moreover, the ground which makes the antenna operate at a lower frequency and antenna at 2.418 GHz with the directivity and gain is 6.58 6dB and 2.935dB. The Tunable metamaterial is …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 · pp. 20–24 Read article
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Analysis of a Dual Band Stacked Patch Antenna with Multiple Notches
Abstract: This paper presents the design and analysis of compact dual band stacked microstrip patch antenna for various applications. The designed antenna structure represents the dual frequency band operation and it covers the S band, frequency applications such as Wi-Fi, surface ship radar, weather radar, broadcasting in the range from 2.31GHz to 3.77GHz frequency band, radar, satellite based digital audio radio service (DARS) communication and some communication satellites. The parameters of …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 1, 2017 · pp. 23–28 Read article
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Analysis and Design of Innovative Double H Metamaterial Structure for Amelioration in Patch Antenna Parameters
Abstract: A rectangular microstrip patch antenna along with a SSRR based “Double H” shaped metamaterial is proposed and analyzed at a height of 3.2 mm from the ground plane. This work is mainly focused on increasing the potential parameters of microstrip patch antennas. The patch antenna along with the proposed metamaterial structure is designed to resonate at 1.84GHz. The impedance bandwidth of the patch antenna along with the proposed metamaterial structure …
Published in Journal of Instrumentation Technology & Innovations · Vol. 2, Issue 3, 2012 · pp. 1–8 Read article
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Formulation Development of Meloxicam Loaded Transdermal Patches and Their Evaluation
Abstract: The current studies aim the Formulation and development of transdermal patches of Meloxicam. Meloxicam is a Non- Steroidal Anti-inflammatory Drug. Transdermal patches show better patient compliance over conventional dosage forms because of their longer time of operation resulting in a reduction in less frequent dosing. Six batches of transdermal patches were prepared using different concentrations of hydroxyl propyl methyl cellulose, ethyl cellulose, and polyvinyl pyrrolidone to increase the physical properties …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 8, Issue 1, 2023 · pp. 12–22 Read article
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Preparation and Evaluation of Mucoadhesive Bilayered Buccal Patch using HPMC and Gelatin
Abstract: The buccal drug delivery system has gained more popularity than other drug delivery systems owing to its ease and safe administration. The high permeability of the buccal mucosa allows the drug to reach the systemic circulation and gives rapid onset of action. The buccal route also helps to avoid drug degradation from first-pass hepatic metabolism and improves drug bioavailability. The present study is designed to develop and evaluate the mucoadhesive …
Published in Trends in Drug Delivery · Vol. 8, Issue 1, 2023 · pp. 5–13 Read article
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Formulation and Evaluation of Transdermal Patch to Enhance Treatment of Alopecia
Abstract: The improvement of novel topical sedate conveyance frameworks has picked up noteworthy consideration due to their potential in upgrading the helpful viability and persistent compliance whereas minimizing systemic side impacts. This thinks about centers on the definition and assessment of transdermal patches planned to discharge allicin, the essential naturally dynamic compound determined from garlic (Allium sativum) extricate. Allicin is eminent for its wide range of pharmacological properties, counting antimicrobial, anti-inflammatory, …
Published in Trends in Drug Delivery · Vol. 12, Issue 2, 2025 · pp. 20–33 Read article
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Optimizing Multi-Cloud Infrastructure: Advanced Bash-Based Automation for Automated Security Patching and Health Monitoring in Hybrid Linux Environments
Abstract: The proliferation of multi-cloud and hybrid Linux environments has introduced significant operational complexity, particularly in maintaining security compliance and system reliability across diverse infrastructure silos. Traditional patch management approaches, relying on manual interventions or disparate vendor-specific tools, suffer from latency, configuration drift, and limited visibility. This article presents a novel, lightweight automation framework constructed entirely in advanced Bash scripting to address automated security patching and real-time health monitoring across hybrid …
Published in Journal of Advances in Shell Programming · Vol. 13, Issue 2, 2026 Read article
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Design and Analysis of Dual Band Triangular Slotted Microstrip Patch Antenna for GPS and WLAN Application
Abstract: AbstractIn this paper, design of a dual operated microstrip patch antenna is presents. The dual-operation frequencies are chosen for UMTS/GPS and WLAN bands. A microstrip square patch antenna is designed which is excited by a microstrip line feed from the bottom of the antenna. An epoxy glass FR4 material is used as a substrate in the designing of antenna. The antenna is first modified in inverted U-shaped design to operate …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 2, 2019 · pp. 1–5 Read article
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A Dipole Circular Patch Antenna for Operation in the X-Band
Abstract: This microwave engineering research paper proposes, designs, calculates, and simulates a novel dipole circular patch antenna for theoretical wideband operations in the X-band (the 8 GHz to 12 GHz frequency range). This proposed microstrip patch antenna was realized using FR-4 as a dielectric (a thickness of 1.5 mm) with copper being used in both the ground plate and the two transmitting circular elements (the so-called patches with a thickness of …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 2, 2021 · pp. 1–8 Read article