Journal of Science & Technology (JST)
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Wideband Compact Dual Frequency Dipole Microstrip Patch Antenna
Get PDFA small size and very thinwideband dipole microstrip patch antenna for dual frequency operation is designed and analysed in this paper. The dimension of the proposed antenna is 40×30×1.6 mm3 .The proposed antenna is designed using a low cost and reliable FR4 substrate. This FR4 substrate material has a thickness of 1.6 mm, dielectric constant of 4.4 and loss tangent of 0.02. The proposed antennaresonates at 2.19 GHz and 2.5 GHz frequencies with a -10 dB impedance bandwidth of 4.37 GHz, ranging from 1.8 GHz to 6.17 GHz.This shows the proposed antenna bandwidth is increased to 200%. The VSWR of the proposed antenna is less than 2 for entire operating frequency range. Radiation efficiency is above 70% at both of the resonance frequencies. A very low cross polarization is found at all resonance frequencies. CST Microwave Studio is used to design and analyse the proposed antenna
Real-Time Anomaly Detection in Metro Train APU Compressors: Insights from Operational Data
Get PDFMetro train systems are vital components of modern urban transportation networks. Ensuring the reliable operation of auxiliary power units (APU) is crucial for the overall performance and safety of metro trains. Anomaly detection in APU compressors can help prevent failures and minimize downtime, enhancing the efficiency and reliability of metro services. Conventional methods of anomaly detection in industrial settings often rely on rule-based systems or threshold-based alarms. While these approaches may be effective to some extent, they may not capture subtle anomalies or adapt well to evolving operating conditions. The primary challenge is to develop a system capable of continuously monitoring APU compressors and detecting anomalies in their operation. This involves analyzing operational data in real-time to identify deviations from normal behavior that may indicate impending failures or performance issues. Therefore, the Metro systems are relied upon by millions of commuters daily for efficient and timely transportation. APU compressors play a critical role in maintaining optimal conditions within train compartments. Detecting anomalies in real-time can prevent potential malfunctions or breakdowns, ensuring passenger safety and minimizing disruptions to metro services.The project, "Real-Time Anomaly Detection in Metro Train APU Compressors: Insights from Operational Data," aims to revolutionize maintenance practices in metro systems by leveraging advanced data analytics and machine learning techniques. By collecting and analyzing real-time operational data from APU compressors, this research endeavors to develop a system capable of autonomously and accurately detecting anomalies. The integration of machine learning algorithms allows for the identification of complex patterns indicative of potential issues, enabling timely interventions to prevent failures and ensure the uninterrupted operation of metro train systems. This advancement holds great promise for enhancing the safety, efficiency, and reliability of urban transportation networks.
 
Three-Component Zn(OAc)2-Catalyzed one pot synthesis of mono and disubstituted Pyrimidine Derivatives.
Get PDFThe Zn(OAc)2-catalyzed three-component coupling reaction using triethyl orthoformate (3 eq.), and ammonium acetate (2 eq.), to synthesis mono & disubstituted pyrimidine derivatives in single step. This method is successfully applied to the efficient synthesis of mono- and disubstituted pyrimidine derivatives, using methyl ketone derivatives by using biodegradable,ecofriendly polychem@36 as solvent in ultrasound condition at 800C giving good yield upto 80-90% .The reaction is completed in short period of time i.e. 1-3 hrs as compared to other reaction
ZIGBEE BASED SOLAR POWERED FOREST FIRE DETECTION AND CONTROL SYSTEM
Get PDFCompared with the traditional techniques of forest fire detection, a wireless sensor network paradigm based on a ZigBee technique was proposed. The proposed technique is in real time, given the exigencies of forest fires. The architecture of a wireless sensor network for forest fire detection is described. The hardware circuitry of the ZIGBEE network node. The process of data transmission is discussed in detail. Environmental parameters such as temperature and humidity in the forest region can be monitored in real time. This system consists of three fire sensors, if any sensor activated it automatically turn on water pump and send the data to base station using zigbee then base station zigbee receiver receive the data and upload into server using IOT. From the information collected by the system, decisions for firefighting or fire prevention can be made more quickly by the relevant government departments
Urinary Biomarker Alterations Associated with Chronic Kidney Dysfunction
Get PDFThis study examines the complex physiology of furine, its production, and its crucial connection to chronic kidney disease (CKD). Three essential mechanisms—glomerular filtration, future perceptive tubular reabsorption, and tubular secretion—are involved in kidney creation, chronic kidney disease, and urine generation. These activities cooperate to preserve homeostasis by controlling fluid balance and waste remova
A COMBINED APPROACH OF DWT-DCT FOR BLIND MEDICAL IMAGE WATERMARKING
Get PDFWith the rapid advancement of digital technologies, the sharing and distribution of medical images have become widespread, posing serious security challenges. To protect sensitive medical data from unauthorized access and tampering, watermarking has emerged as a crucial security measure. In addition, the concept of watermarking has become vital in preserving the integrity and authenticity of these images. Traditional watermarking techniques faced limitations in terms of robustness and visibility, especially for medical imaging, where image quality is paramount. To overcome these challenges, this work introduces an innovative blind medical image watermarking technique that combines the Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT). The proposed method ensures robust and imperceptible watermark embedding and retrieval while maintaining the visual quality of medical images. The significance of robust and imperceptible medical image watermarking cannot be overstated. As medical institutions increasingly adopt digital practices like telemedicine and electronic health records, the risk of data breaches, tampering, and unethical practices also rises. An efficient watermarking technique is crucial to protect patient privacy, maintain trust in medical institutions, and ensure the authenticity of medical data. The combined DWT-DCT approach presented in this paper offers a promising solution by enabling secure watermark embedding and retrieval, ensuring tamper detection and authentication.
 
A Fernet Based Lightweight Cryptography Adopted Enhancing Certificate Validation through Blockchain Technology
Get PDFCertificate forgery has become a pervasive issue, necessitating a transformative approach to validation processes. The limitations of traditional methods have prompted the exploration of cutting-edge technologies, with blockchain emerging as a promising solution. The conventional system relies on manual verification processes that are time-consuming, opaque, and prone to fraudulent activities. Physical examination of paper-based certificates and reliance on centralized databases make the system vulnerable to tampering and counterfeiting. The drawbacks of the current system include its susceptibility to data manipulation, lack of transparency, and inefficiency. This section critically evaluates the shortcomings of traditional certificate validation methods, setting the stage for the proposed blockchain-based solution.The proposed system leverages blockchain technology, specifically implementing the Fernet Based Lightweight Cryptography (Fernet-LWC) algorithm, to enhance the security and efficiency of certificate validation. The Fernet-LWC algorithm offers cryptographic protection, ensuring the integrity and confidentiality of certificate data. The blockchain's decentralized nature eliminates the need for a central authority, reducing the risk of data manipulation and fostering trust in the validation process. Each certificate issuance is securely recorded on the blockchain, creating an immutable and transparent trail. This section delves into the technical aspects of the proposed system, providing a detailed explanation of how the Fernet-LWC algorithm ensures data security and integrity. A comprehensive analysis of the proposed system's architecture and implementation details is presented. This includes the integration of the Fernet-LWC algorithm into the blockchain framework, ensuring a secure and efficient certificate validation process. The system's components, their interactions, and the underlying cryptographic mechanisms are elucidated, providing a clear understanding of how the proposed solution operates.
 
Structure of symmetric tensor of type (0, 2) on the complex tangent Bundle
Get PDFIn the present paper structures of symmetric of tensors of the type (0, 2) on the complex tangent bundle TM2n of a complex manifold M2n has been studied
Analysis and Design of Transmission Tower with Isolated Footing
Get PDFA transmission tower is a tall structure, usually a steel lattice tower used to support an overhead power line. They are used in high voltage AC and DC systems. Steel tower structure resting on footings are currently becoming popular in any geographical location for electrical transmission, microwave transmission etc. It is necessary to have an understudy of the behavior of such structures and provide an economical design. To understand the performance of such high rise structures, it is necessary to know their behavior considering the soil structure interaction. Modeling of Transmission tower for the validation purpose is done. The basic soil properties of laterite were also found accordingly. Here the entire transmission tower with the isolated footing is modeled and analyzed in STAAD Pro V8i and STAAD Foundation software. The total load transmitted to each tower leg is found using STAAAD Pro and the size of isolated footing under each tower leg is determined using the STAAD Foundation software respectively. If required the soil structure interaction effects (SSI) can also be found easily
A Critical Review on Immune-Boosting Therapeutic Diet Against Coronavirus (Covid-19)
Get PDF: Now a days the news of coronavirus is on all news paper’s headline. Coronavirus is spreading from animal market of Wuhan in central China. There are several types of coronavirus but all are not dangerous but this new coronavirus is very dangerous. It is a group of RNA viruses that cause a variety of disease in animal and animal to human. The efficiency of this new coronavirus found in the live animal market of Wuhan in central China, circulate in a range of animals and spread from animal to animal and animal to human also which is called Spillover. Mild symptoms of coronavirus are cough, shortness of breath and severe problems are pneumonia, kidney failure and death also. Basically corona virus effects on immune systems and decrease the immune power. There are no specific treatments or vaccines for this disease still now. So in this condition, people have to maintain immunity and should increase immune power to fight against coronavirus. Only washing hand and wearing a mask are not enough to fight against this virus, people have to modify their daily diet. This article summarizes the immuneboosting therapeutic diet against coronavirus (COVID-19)