Dual Frequency Circular Shaped Two Port MIMO Antenna
Design and Development of Portable Oxygen Concentrator
Design and Simulation of Antenna for Foliage Penetration Application
Performance Enhancement of Microstrip Patch Antenna with Slots for 5G Communication
Ergonomic Wheelchair - Stretcher for Enhanced Patient Mobility
The Impact of Substrate Doping Concentration on Electrical Characteristics of 45nm Nmos Device
A Study on Globally Asynchronous and locally Synchronous System
Method of 2.5 V RGMII Interface I/O Duty Cycle and Delay Skew Enhancement
Performance Analysis of Modified Source Junctionless Fully Depleted Silicon-on-Insulator MOSFET
Automatic Accident Detection and Tracking of Vehicles by Using MEMS
Efficient Image Compression Algorithms Using Evolved Wavelets
Computer Modeling and Simulation of Ultrasonic Signal Processing and Measurements
Effect of Nano-Coatings on Waste-to-Energy (WTE) plant : A Review
ANFIS Controlled Solar Pumping System
Dual Frequency Circular Shaped Two Port MIMO Antenna
In a modern radar system, both recorded data and recorded intelligence information can be used together with data fusion output information to exactly identify or classify target type. Different techniques and strategies can be used to combine information from sensor system. In this technique of target classification, the difference in tone of various target type is utilized as heard by the operator. The different type of target generates a specific audio signal, which is heard by Ground Surveillance Radar operator via head phone. From audio signal, feature extraction has been carried out as a first step in order to uniquely identify audio tone of one target type from another, i.e., Heavy Vehicle to Light Vehicle, Group of men to Crawling men. Subsequently, fuzzy membership function is set to reflect the physical limits stored in the knowledge database for accurate identification of target audio tone type. The entire process of feature extraction and fuzzy logic has been done in MATLAB. The main aim of the paper is to study Digital Audio Processing Techniques and its applications in Ground Surveillance Radar.
This paper presents the analysis of confinement loss and dispersion of Multi-Core Fiber (MFC) by varying the structural parameters like wavelength, diameter of holes and pitch length. The different geometries of Multi-Core Fiber used for this analysis are Hexagonal, Octagonal and Decagonal structures. The simulation is done by doping few inner ring holes of the MCF with different liquids having refractive index lower than that of the actual core. The calculation of confinement loss and dispersion is done in COMSOL Multiphysics software while the graphs are plotted in MATLAB. It has been observed that variation of structural parameters has been found to cause change in confinement loss and dispersion. After comparing these three structures, it is seen that hexagonal structure shows a better outcome than others.
Agriculture plays the primary role in food production. Ploughing the land and sowing seeds are important prerequisites for any plantation or cultivation. In the traditional method, the farmer sows the seed manually without using any machinery. The main problem of traditional technology is that uniform seed distribution cannot be achieved. The basic goal of seed sowing process is to sow the seeds at required depth and at required spacing. The foremost objective of this paper is to design the Agribot (Automatic Seed Sowing Machine) using solar energy. In this proposed system, ultrasonic sensors give the signal to the micro-controller. It gives the signal to the motor driver circuit, then Agribot turns automatically and with the help of a linear actuator it sows the seeds in the next line after sensing the furrows in the agricultural field. Solar panel is used to charge the battery that provides the necessary power to the gear motors. The boost converter is connected between the solar panel and the battery. ATmega328 microcontroller is used to control all the operations performed by the machine. The Agribot has been designed and tested in real time (small scale).
Laser source is an inevitable source for generating light waves which act as a carrier in wired or wireless medium. LED is a modulation source which reduces the wavelength in visible light medium. In this paper, different laser sources with free space channel and optical fiber in the wavelength of 1550μm are used to evaluate the performance of Quality Factor and Bit Error Rate (BER). The controlled pump laser, directly modulated measured laser and empirical measured laser are reviewed with free space and optical fiber channels. The corresponding modulated signal source is received and the maximum probability of quality factor and minimum bit error rate is determined. The reason for choosing the laser over LED is that the laser has more bandwidth and power efficiency and is compatible with both single and multimode fibers. Laser has higher SNR than other source of optical communication.
Internet of Things (IoT) is utilized as a part of many applications. One such application is in medical services for screening a patient's wellbeing. Internet of Things makes therapeutic gear more effective by permitting ongoing checking of patient's wellbeing, in which sensor receives the information of patient and decreases human errors. With modern communication technologies and intelligent systems, patients can monitor their own health signs at home and communicate the results to their health providers, wirelessly. In this paper, we not only monitor the patient but also track the environment of patient. This will increase the ability to address a problem before a patient requires acute care. We have the ability to remotely monitor vital signs of a patient in real-time. Our proposed system is simple, low-cost and compact. This research outlines the design and development of a cost effective and reliable wireless sensing device, which is based on Node MCU microcontroller for collecting real-time health vital signs such as human body temperature and heart beat rate.
