AN USER FRIENDLY ELECTRONIC STETHOSCOPE FOR HEART RATE MONITORING

This paper is a biomedical based related to the heart pulse dealing with the accuracy of acquiring the pulses for determining the heart rate precisely. In addition to this it will be helpful in determining exact heart pulse per minute and diseases associated to it. It is one step forward to improve its present features and try to make a more efficient stethoscope with advanced features

DESIGN OF A FOUR STAGES VCO USING A NOVEL DELAY CIRCUIT FOR OPERATION IN DISTRIBUTED BAND FREQUENCIES

The manuscript proposes a novel architecture of a delay cell that is implemented in 4-stage VCO which has the ability to operate in two distributed frequency bands. The operating frequency is chosen based on the principle of carrier mobility and the transistor resistance. The VCO uses dual delay input techniques to improve the frequency of operation. The design is implemented in Cadence 90nm GPDK CMOS technology and simulated results show that it is capable of operating in dual frequency bands of 55 MHz to 606 MHz and 857 MHz to 1049 MHz. At normal temperature (270) power consumption of the circuit is found to be 151μW at 606 MHz and 157μW at 1049 MHz respectively and consumes an area of 171.42µm2. The design shows good tradeoff between the parameters-operating frequency, phase noise and power consumption

A review on Quadcopter Surveillance and Control

The aim is to design a low cost light UAV (Unmanned Aerial Vehicles) quadcopter system and make it comparable with others. The quadcopter will be controlled from a laptop or a pc from a certain distance wirelessly. There will be a simple avionics system and which include a camera and a GPS antenna for navigation and tracking the UAV. The quadcopter can also be used for measuring the height from the earth and is capable of measuring the temperature and humidity of the environment.Keywords: UAV, quadcopter, RF module, GP

A Review on Distribution Network Reconfiguration

In distribution systems, network reconfiguration is comprehended by changing the best possible status of placing the sectionalizing switches. It is generally performed for reducing the losses or for balancing the load in the system. Generally for the distribution systems, meshed networks are configured in a feeble manner with manifold supply points, but they are controlled with radial configurations by unbolting the redundant branches. The system should be recompensed, otherwise it creates disturbance which lead to variation in supply voltages. In this paper, a study related to network reconfiguration techniques is presented in order to avoid network congestion showing the importance of FACTS devices along with an overview of issues related to voltage collapses in distribution system

PROTECTION OF CROPS FROM ANIMALS USING INTELLIGENT SURVEILLANCE SYSTEM

Traditional methods of detecting animals in paddy fields and farms include the use of human eyes to witness animal movements. It is not possible for human beings to monitor animal movements continuously throughout the day. So there is a need for specialized detection of animals particularly which enter the paddy fields and farm land of human beings. The methods used for the recognition of the animals include segmentation and object detection process. In the segmentation process frame differencing is used which is followed by thresholding. In the process of frame differencing two consecutive frames are subtracted which will leave only the moving objects. The process of segmentation is followed by object detection. There is a state of art overview to go through the work done by people in this field. After studying several object detection methods, finally the scale invariant Fourier transform method is selected owing to several advantages as compared to its counterparts