Stpeters University

Chennai, India

Stpeters University

Chennai, India
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Hariharan R.,Stpeters University | Manohar J.,Panimalar Engineering College
International Conference on "Emerging Trends in Robotics and Communication Technologies", INTERACT-2010 | Year: 2010

"If you and I were to exchange an apple Neither would have two But if we were to exchange ideas Each would have two ideas" When we enter the enchanting world of electronics we have pleasant routes. The path we have chosen is the union of robotics & medicine. The integration of nanotechnology into medicine is likely to bring some new challenges in medical treatment. Let us peep inside the real world of NANOTECHNOLOGY. Nanorobot is a wonderful vision of medicine in the future. The most advanced nanomedicine involves the use of nanorobots as miniature surgeons. Advancement in nanotechnology may allow us to build artificial red blood cells called Respirocytes capable of carrying oxygen and carbon dioxide molecules (i.e, functions of natural blood cells). Respirocytes are nanorobots, tiny mechanical devices designed to operate on the molecular level. Respirocytes can provide a temporary replacement for natural blood cells in the case of an emergency. Thus respirocytes will literally change the treatment of heart disease. We can envision a day when you could inject billions of these nanorobots that would float around in your body. One of the most realistic and nearly feasible achievements is the cure for cancer which is one of the main focuses of this work. Nanorobots could carry and deliver large amounts of anti-cancer drugs into cancerous cells without harming healthy cells, reducing the side effects related to current therapies. These nanorobots will be able to repair tissues, clean blood vessels and airways, transform our physiological capabilities, and even potentially counteract the aging process. © 2010 IEEE.

Prakash G.,Stpeters University | Subramani C.,SRM University
International Journal of Power Electronics and Drive Systems | Year: 2016

This paper compares the execution of Sinusoidal Pulse width Modulation (SPWM) and Space Vector Pulse Width Modulation (SVM) methods for a Quasi Z-source inverter (QZSI) is an another topology got from the standard Z-source inverter (ZSI). The QZSI gets each one of the upsides of the ZSI, which can comprehend buck/boost, inversion and power forming in a singular stage with upgraded trustworthiness. In like manner, the proposed QZSI has the novel purposes of enthusiasm of lower part evaluations and unfaltering dc current from the source. The QZSI highlights a broad assortment of voltage expansion which is reasonable for applications in photovoltaic (PV), as a result of the way that the PV cells yield contrasts comprehensively with temperature and daylight based enlightenment. The working qualities of the proposed course of action is analyzed in inconspicuous component and appeared differently in relation to that of the SPWM and SVM. Speculative examination of voltage help and direction methods for the QZSI in PV is explored in this paper. Amusement of the circuit setup for the previously stated equalization procedures have been taken a gander at in MATLAB/Simulation. Besides, the THD examination of both SPVM and SVM is compared. © 2016 Institute of Advanced Engineering and Science. All rights reserved.

Chellaswamy C.,Stpeters University | Ramesh R.,Saveetha Engineering College
Renewable and Sustainable Energy Reviews | Year: 2017

In this paper, an overview of future energy option for charging mechanism associated with the full electric vehicle (FEV) is carried out. This review emphasizes the basic types of electric vehicles (EVs), various factors affecting to increase the number of FEVs to use, the CO2 emission and fuel economy, and a new charging mechanism for increasing the usage of FEVs. The EVs such as plug-in hybrid electric vehicles (PHEVs), the hybrid electric vehicles (HEVs), and the FEVs are recharged externally. The HEVs are the one will cover longer traveling distance compared to PHEVs and FEVs because of internal combustion engine. The PHEVs provides on-board charging and an option for sustaining mode of operation. On the other hand, FEVs run only with the help of batteries and the electricity required for recharging the batteries is generated from the conventional power plants which produces more greenhouse gas emission. In order to overcome this problem, a new recharging mechanism is proposed, which has both the renewable sources (wind and solar) moreover it automatically recharges the battery banks present in the FEVs. A wind duct is incorporated for increasing the velocity of the wind and the model of both the wind and the photovoltaic (PV) system have been studied. Furthermore, the streamline plot of wind duct is simulated at various values of Reynolds number and the PV array is modeled using Simscape. The performance and comparison results indicate that the proposed system can be used for charging the batteries of EVs. © 2017 Elsevier Ltd

Mohandass D.,Stpeters University | Janet J.,Drrr And Drsr Technical University
European Journal of Scientific Research | Year: 2011

Current telemedicine systems offers methods that can facilitate the transfer of video, text and medical images to aid medical professionals located at remote locations interact with an expert. However emerging telemedicine systems need to provide solutions even if an expert is not available. A possible solution is the retrieval of similar case studies based on the query medical image which can help the health care professional to diagnose better. The challenge in this approach is the availability of necessary bandwidth for transfer of images of very large sizes typical in medical applications. This poses new challenges in rural areas where bandwidth may be a constraint and low speed wireless links may be the communication channel. In such scenarios reducing the data size becomes a possible solution which can be achieved using compression. In this paper we propose to compress medical images such that the retained energy is greater than 99% and extract features from these images to evaluate the performance of lossy compressed medical image classification by various learning algorithms. We also propose a mathematical model namely Image Retreival Specific-Fourier Transform IRS-FT for feature extraction and compare the results obtained with FFT based feature extraction. © EuroJournals Publishing, Inc. 2011.

Muthukrishnan P.,Stpeters University | Dhanasekaran R.,Syed Arumal Engineering College
Proceedings of 2014 IEEE International Conference on Advanced Communication, Control and Computing Technologies, ICACCCT 2014 | Year: 2015

In this paper, a high voltage gain converter is presented, which is combination of two same value of capacitor for the continuous maintenance of energy to the load. The voltages across the switches are minimized by the help of two output capacitor and the coupled inductor with changing the turn's ratio of self inductance. The resultant voltage gain of the circuit is 15.5 times of input voltage and it is greater than that of the existing step-up converter. Since the proposed converter is simulated with the help of PSIM software tool. Thus the resultant parameters of simulation with 372V output voltage from the source of 24V input voltage and 855W output power capacity of the load power is verified by the effectiveness of the proposed converter. © 2014 IEEE.

Muthukrishnan P.,Stpeters University | Dhanasekaran R.,Syed Ammal Engineering College
Journal of Theoretical and Applied Information Technology | Year: 2014

A Conventional Boost Converter is not capable for obtain a high voltage gain even extreme duty cycle maintain the triggering circuit diagram. In order to increase the voltage gain for the new Boost converter from the solar power application. In this paper boost converter specialty is achieved 10 times that of input voltage and more than 10 times of input voltages is possible from output side by using coupled inductor and parallel capacitor. The proposed boost converter output voltage is obtained 600V from source input of 60V and output power is 900 watts. The output voltage is high and voltage stress across the active switch is minimized and output ripples also minimized. In this paper the high power rating from low input voltage rating of the input source and also capable to go for AC power application whenever adding the inverter circuit to the main circuit diagram. © 2005 - 2014 JATIT & LLS. All rights reserved.

Ganeshbabu R.,Stpeters University | Amudha V.,Stpeters University
Procedia Computer Science | Year: 2016

Group Average defines cluster proximity to be the average pairwise length of edges from different clusters. All the Secondary Users(SUs)in the clusters send the source information to their Cluster Head(CH) through the available common channel at this location. Each cluster in the CHs transmit decision to the common receiver. the proposed method provide dynamical Hierarchical clustering scheme with bandwidth constraints according to the inter and intra user cluster channel conditions with reduce overhead and delay of sensing. Clusters based Channel Sensing provides preferable stability and scalability because of its low complexity under dynamic Primary Users(PUs) activity. © 2016 The Authors.

Bharathi Raja N.,Stpeters University | Gangatharan N.,k-Technology
International Review on Computers and Software | Year: 2015

In this paper, a new low complexity transform which combines the fast Walsh Hadamard transform (WHT) and fast Hartley transform (FHT) into a single fast orthonormal transform is proposed for orthogonal frequency division multiplexing (OFDM) across additive white Gaussian noise (AWGN) channel model. The new transform is developed through the sparse matrices method in OFDM system, which is capable of reducing peak to average power ratio (PAPR) of the transmitted symbols with better bit error rate (BER) performance degradation at a reasonable reduced complexity. The system performance is verified via simulations. Compared with the FHT method, the proposed OFDM signal can be generated by FHT via WHT with lower PAPR and also the computational complexity nearly halved. It reveals that the proposed OFDM has the same BER performance as FHT, but proposed OFDM transceiver shows superiority on computational complexity. The proposed scheme is a cost-effective and efficient multicarrier modulation scheme. © 2015, Praise Worthy Prize S.r.l. - All rights reserved.

Asha P.,Stpeters University
International Journal of Earth Sciences and Engineering | Year: 2015

Utilization of waste materials and by products is a partial solution to environmental and ecological problems. Use of these materials not only helps in getting them utilized in cement, concrete and other construction materials, it helps in reducing the cost of cement and concrete manufacturing, and also has numerous indirect benefits such as reduction in landfill cost, saving in energy, and protecting the environment from possible pollution effects. Electronic waste, abbreviated as E-waste, consists of discarded old computers, TVs, refrigerators, radios – basically any electrical or electronic appliance that has reached its end of life. Efforts have been made in this paper to use non-biodegradable components of E-waste as a partial replacement of fine aggregates. An experimental study is made on the utilization of e-waste particles as fine aggregates in concrete with a percentage replacement ranging from 10 % to 30% (named as E10, E20 and E30). The effect of use of E-waste on compressive strength, tensile strength and flexural strength of concrete is studied. It was observed that as the percent replacement of E-waste increases, the compressive strength, flexural strength and split tensile strength of concrete decreases. The compressive strength of E10, E20 and E30 concrete decreases when compared with that of control mix concrete by 7.6%, 21.47% and 26.11% respectively. The split tensile strength of E10, E20 and E30 concretes is lesser than that of the control mix concrete by 1.67%, 20.98%, 38.98% respectively. The modulus of rupture for control mix concrete is 5.60 N/mm2 and it is higher than that of E10, E20 and E30 concretes by 16.67%, 40.5%, 42.86% respectively. © 2014 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.

Kirubanandasarathy N.,Stpeters University | Karthikeyan K.,ABB
European Journal of Scientific Research | Year: 2012

In this paper a VLSI design of a MIMO-OFDM system is presented. We start with the design of an OFDM physical layer that follows the IEEE standard 802.11a. We then devise an efficient pipelined architecture, and incorporate it into the MIMO-OFDM physical layer. In our experiments, we compare our pipelined architecture to the baseline MIMO-OFDM physical layer implementation. The baseline MIMO-OFDM system uses the same number of fast Fourier transform (FFT) blocks as antennas. The implementation efficiency of our pipelined architecture, compared with the baseline MIMO-OFDM system, is evaluated using two methods: (1) using just one FFT block, and (2) using Radix-2 pipelined streaming FFT block, versus a Radix-4 FFT block used in the baseline MIMOOFDM system. Our experiments show that atleast 30 percent of the resources in the baseline MIMO-OFDM system can be saved using our proposed architecture, while achieving the same data rate. We also show that this data rate can be doubled, with approximately the same resource reduction. Moreover, by exploiting the dynamic reconfiguration, our MIMO-OFDM system can adapt to various operating modes. We also present experimental results and analysis regarding dynamic reconfiguration. © 2012 EuroJournals Publishing, Inc.

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