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This paper proposes a new active floating inductance simulator using two voltage differencing voltage transconductance amplifiers (VDVTAs) and only one grounded capacitor. The presented configuration is electronically controllable, exhibit low non-ideal effects and does not require external passive component matching condition. The validity of proposed circuit is tested by an application example of...
This paper presents implementation of safety helmet for coal mine workers. This helmet is equipped with methane and carbon monoxide gas sensor. This sensor sense the gas and the data is transmitted to the control room wirelessly, through a wireless module called X-Bee connected with the helmet. When the methane or carbon-monoxide gas concentration is beyond the critical level, controller in the control...
This paper present new technique for designing the compact and high performance edge coupled coplanar waveguide band pass filter (ECCPW-BPF) at the operating frequency 30 GHz. The simulated results show good agreement with low pass band insertion loss approximate-3dB and high return loss (greater than 10 dB). The design edge coupled coplanar waveguide band pass filter (ECCPW-BPF) has 10% bandwidth...
This paper presents a Graphical User Interface based solution for comparing technical parameters of any two solar charge controllers. The main objective of this system is to bring the industrial appliances/devices and the communication equipment's on the same platform. Today most of the solar devices need an advanced control and direct interaction with their user for providing better aesthetics and...
This paper proposes a novel first order all pass filter that utilizes operational transconductance amplifier as an active device. The introduced filter circuit comprises of only two active device and one grounded capacitor and four resistors. It also provides the voltage-mode and current-mode output simultaneously without doing any alteration in its hardware configuration. The transfer function of...
The objective of this research is to devise a method and apply to a physical circuit to accurately extract Photoplethysmogram (PPG) signal from the finger. PPG is a noninvasive circulatory signal related to the pulsatile volume in tissue according to the variation of the blood pumped by the heart. A PPG is obtained by using a pair of infrared transmitter and receiver. Infrared transmitter emits infrared...
The paper demonstrates the Single notch band UWB BPF avoiding interference from satellite communication. The filter consists of stub loaded rectangular ring resonator between interdigital structure to improve the selectivity of the passband and upper stopband. A rectangular slot as defected microstrip structure loaded with line stub is used for further improvement in passband performance at both the...
A conventional CPW fed circularly polarized slot antenna is presented in this paper. Circular polarization is achieved by using open ended slot at left end of the antenna. The 3-dB axial ratio bandwidth (ARBW) of 700 MHz is achieved in useful range of frequency, relative to 5.5 GHz center frequency. The proposed antenna is circularly polarized in frequency range of 5.1–5.8GHz band used for WLAN/WiMAX...
Electrical energy is an essential requirement for everyday life and its demand is increasing globally. To meet the rapidly increasing demand without adversely affecting the environment, world over there is focus on renewable energy based power generation of which solar photo voltaic (PV) based power generation systems are the major contributors. To exploit the solar energy for electrical power generation,...
A 50 kW RF based plasma power supply has been designed for incineration of Low and intermediate level radioactive solid waste with activity of the order of 10 mR. Power supply is class C tube based amplifier. Specification has been decided based on CFD simulation of incinerator facility at BARC and plasma sustainability. This paper describes design of tube based 50 kW power amplifier from calculations...
Erroneous measurement of voltage and current signals during power swing causes failure of the protection system. Therefore, fault detection and direction estimation are challenging issues in the power system protection area. In this paper, an integrated directional algorithm is proposed to estimate the direction of unsymmetrical and symmetrical faults during power swing. Scheme 1 is based on the cumulative...
This work explores beam forming and two-way relaying to alleviate the dual issues of the spectrum congestion and spectrum under-utilization. These problems can be alleviated by the implementation of underlay cognitive radio networks. However, their reliability, capacity or power, and coverage depend on bi-directional or abbreviated as primary-to-secondary or abbreviated as (P2S) and secondary-to-primary...
With increasing demand of electricity there is a huge need to shift to economically viable renewable energy sources. Wind energy seems to be an economically viable source of energy hence it is necessary to focus on economic aspects of it. In this paper an attempt has been made to find the effect of relative cost of components used for setting up a wind power plant on the total cost of wind power plant...
Energy harvesting is generating energy from multiple sources. Energy is harvested from various sources like piezoelectric, solar cells, wind mills and other such modules. The wireless sensor networks are the networks that are made of small sensor devices like rain measure, environmental pressure etc. To power up the WSN and elongate its lifetime, piezoelectric energy harvester has been used. Low amount...
Recent research on fuzzy flip-flops has introduced new design of D flip-flop to overcome the unstable conditions of JK flip-flops and to increase the computation speed of digital circuits. This paper contributes to the modification in the existing design to exploit the features of flip-flop at increased level of changes in the input signal. Results are discussed using previous design to ensure the...
This paper examines the double compression of joint photographic experts group(JPEG) image using discrete cosine transform(DCT) technique with different quality factor(QF) for each step. Study on relatively new approaches has been reviewed for double compression of JPEG when the primary and secondary compressions have same quantization matrixes. The double compression of the JPEG image with different...
We have generated an algorithm which runs on the human retinal fundus image and finds out the blood veins that are in the retinal fundus image to detect the Diabetic Retinopathy disease. This is occurred usually in the Diabetic patients where there is a loss of vision if not medicated at a proper instance. We have made this to make the doctors to be more efficient about which stage the disease is...
This paper presents the implementation of a structural problem solving technique of Failure Modes and Effect Analysis to analyze and improve the reliability and performance of the electro-hydraulic servo valve for steam turbine with minimum defects. Even a minor error in the system may results in default automatic fire control produced by an ideal hydraulic servomechanisms with electronics signal...
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