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Venkata Ramana Chary R.,Padmasri Dr Bv Raju Institute Of Technology | Rajya Lakshmi D.,King Abdulaziz University
2012 IEEE International Conference on Computational Intelligence and Computing Research, ICCIC 2012 | Year: 2012

Databases, libraries of digital image and multimedia are considerably expanded in last few years. The growth of a content-based image retrieval (CBIR) system has become main research issue in order to retrieve the desired images successfully and accurately from a large image database. In this paper we concentrated on image features and features extraction and comparisons for similarity. We processed huge amount of images and extracted the each image converted into gray form then extracted edges and calculated connecting points of each image. All connected points we stored into the database then based on query image feature values are compared then images are equating. Observations are showing that this process shown the good result comparatively existed methods. © 2012 IEEE.

Ramakrishna K.,Padmasri Dr Bv Raju Institute Of Technology | Madhav G.V.,Padmasri Dr Bv Raju Institute Of Technology
Proceedings of 2014 International Conference on Interactive Collaborative Learning, ICL 2014 | Year: 2015

The paper clearly discusses about the interaction between industry and institutions of India in regard to the engineering education with the present technologically reforming world. As today India plays a major role in the rapid change of technology, the developments at various fields of technologies are due to the contribution of both industry and academia of the country. The industry and institution are interdependent on each other for new inventions and discoveries to meet the demands of the present problems of the society. In this paper, the various types of interactions between an industry and institute maintained in India are clearly discussed for the present scenario. At each and every category, the increasing demand for the relationship has been clearly mentioned. The various types of interactions of academic institute from industry and also at the same time the requirements from industry from academic institution are discussed in detail. It is a fact that when industry and institution go by hand to hand and cooperate with each other more innovations can happen. This creates healthy environment in the country by which there will be an all round development. This would be an important factor in making the economy of the country more strong. Both industry and institution play a vital role in the development of the nation. © 2014 IEEE.

Venkata Ramana Chary R.,Padmasri Dr Bv Raju Institute Of Technology | Rajya Lakshmi D.,King Abdulaziz University
2012 International Conference on Radar, Communication and Computing, ICRCC 2012 | Year: 2012

Image searching is most interesting in the field of the computer vision. Every day many digital images are coming into the web. User is attracted to automatic image retrieval from this large dataset. Many methods which are introduced in this last ten years for image retrieval based on the similarity, size of database, image classification, similar group of images finding, performance of retrieval. when the size of database is increasing image similarity finding It is big task for the researchers to give the efficient solutions. Content-Based Image Retrieval (CBIR) systems are used in order to retrieve image from image dataset. In our proposed method, we are utilizing clustering method for retrieve the images. Each Image converted into gray form and calculated the threshold values for 10000 images for each image extracted cluster mean values using k-mean method and stored into the database. In first method query image mean values are comparing using mean distances between query image and database images. In second method group of images are selecting from the image database with similar features and finding the distance difference of the each image and considered the squires of the all distances and make a sum and divide with the number of cluster values then make in sequential order of the images. Main aim of this work is to extract images with good similarity when the images that are retrieved based on query image. Above mention methods are given good performance. © 2012 IEEE.

This paper focuses on the effects of chemical reaction on an unsteady magnetohydrodynamic free convection fluid flow past an infinite vertical porous plate with constant suction. The dimensionless governing equations are solved numerically by a finite element method. The effects of the various parameters on the velocity, temperature and concentration profiles are presented graphically and values of skin-friction coefficient, Nusselt number and Sherwood number for various values of physical parameters are presented through tables.

Venkata Swamy B.,Padmasri Dr Bv Raju Institute Of Technology | Madhumala M.,Indian Institute of Chemical Technology | Prakasham R.S.,Indian Institute of Chemical Technology | Sridhar S.,Indian Institute of Chemical Technology
Chemical Engineering Journal | Year: 2013

Nanofiltration (NF) and reverse osmosis (RO) and are membrane-based separation processes which can be used for treatment of industrial effluents and wastewater recycling. In the present study, performance of functionalized nanofiltration (FNF-400) and thin film composite (TFC) polyamide RO membranes has been investigated for the treatment of industrial effluent consisting of 5710ppm total dissolved solids (TDS), 4050ppm chemical oxygen demand (COD) and 8.4ppm biochemical oxygen demand (BOD). Effect of various parameters such as applied pressure and feed composition on parameters such as permeate conductivity and flux, TDS rejection, turbidity removal besides COD and BOD reduction was evaluated. At a constant feed pressure of 21bar, higher average flux of 36.95L/m2h was observed in case of NF when compared to 18.77L/m2h for RO. The % rejections of TDS, turbidity and COD were observed to be 85%, 97.8% and 73.33% for NF and 95%, 100% and 86.66%, respectively for RO systems. A statistical mechanical model was developed for commercial NF and RO systems. The economic estimation of commercial NF/RO systems was carried out which reveals that NF process is more economical due to lower operating pressures and consequently lesser energy consumption. © 2013 Elsevier B.V.

Rao M.L.,Padmasri Dr BV Raju Institute of Technology
Journal of the Institution of Engineers (India), Part PR: Production Engineering Division | Year: 2010

Flow forming is an advanced eco-friendly chipless metal forming process for producing axi-symmetric components from plates or preforms which has several advantages, like improved mechanical properties and surface quality for a finished part. Components produced through this process are widely used in aerospace and missile applications. In this study, the effect of contact geometry between the roller and the workpiece and influence of the critical mechanical parameters, such as, the feed rate, the shape of the contact line, the roller attack angle were studied. The experiments were carried out on a single roller flow forming machine. It is found that the S/L ratio increases with roller attack angle (a) and feed rate; when preform thickness increases, the S/L ratio decreases. When the shape of contact line (S/L) becomes too large, then the friction coefficient between the roller and the workpiece becomes close to unity. Hence, it is essential to carry out to analyse an inappropriate selection of parameters hinders the material flow, leading to specific types of defects.

Chinnaiah M.C.,Padmasri Dr Bv Raju Institute Of Technology | Divyavani G.,Padmasri Dr Bv Raju Institute Of Technology | Satyasavithri T.,Jawaharlal Nehru Technological University Anantapur | Rajeshkumar P.,Pvp Siddhartha Institute Of Technology
2014 International Conference on Advances in Electrical Engineering, ICAEE 2014 | Year: 2014

This paper presents a shortest path algorithm for FPGA based robot which can assist in industrial environment for various tasks. When a desired task is assigned to the robot, it chooses a shortest path from the source to the destination. Path planning is an important issue for an autonomous robot to fulfill any desired task. Today many robots implement the path planning depending on the track, but practically track doesn't exists. So path planning with track is not a right choice. This paper overcomes tracking path issues, estimates the exact position, and improves effective localization and accuracy using land mark determination (RFID). With the help of ultrasonic sensors, the robot overcomes all the obstacles in its path. By using obstacle avoidance approach, a robot can perform a desired task using optimal resources. When a navigation task is assigned to the robot, it starts from there evaluating shortest distance to reach the destination. The proposed Robot is incorporated with Xilinx board XC3S500E (FPGA Spartan 3E) and RFID reader which checks the signal from RFID tags to localize the robot with respect to global position. The destination location is received from the remote location and the shortest path is computed by algorithm. The Implementation results have been shown and estimation of shortest path is done successfully. © 2014 IEEE.

Vaddi R.,Padmasri Dr Bv Raju Institute Of Technology | Agarwal R.P.,Shobhit University | Dasgupta S.,Indian Institute of Technology Roorkee
IEEE Transactions on Electron Devices | Year: 2012

In this brief, a new analytical model to compute the potential distribution in gate overlap and underlap regions of a generic double-gate (DG) MOSFET (valid for asymmetric features in front- and back-gate insulator thicknesses, gate bias, and gate work functions) for operation in the subthreshold condition is proposed. A closed form solution to 2-D Poisson's equation is obtained with approximation of parabolic potential function along vertical direction of the device. Conformal mapping technique is applied for modeling fringe electric field in the underlap regions. The proposed potential model is extended in deriving important device parameters such as threshold voltage, threshold voltage rolloff, DIBL, subthreshold swing, etc. Model predictions demonstrate that significant improvement in subthreshold operation can be achieved with 4T asymmetric underlap DG MOSFETs in comparison to 3T symmetric nonunderlap DG MOSFETs. © 2012 IEEE.

Raju I.B.K.,Padmasri Dr Bv Raju Institute Of Technology | Kumar P.R.,Pvp Siddhartha Institute Of Technology | Rao P.B.,Padmasri Dr Bv Raju Institute Of Technology
Proceedings of the IEEE International Caracas Conference on Devices, Circuits and Systems, ICCDCS | Year: 2014

The Residue number system (RNS) has been employed for efficient parallel carry-free arithmetic computations in DSP applications. Residue addition is the instrumental component in implementing residue converters and channels in RNS. On the other side Reversible Logic is becoming one of the potential power optimization techniques in Low Power CMOS design. In this research paper we have proposed CMOS implementation of two different reversible logic architectures for 4-bit generic modulo-m ripple residue adder using 4×4 TSG, DPG and 3×3 Fredkin Reversible logic gates and one architecture for 4-bit generic modulo-m carry look ahead residue adder using 4×4 RMF and 3×3 Fredkin Reversible logic gates along with two irreversible logic based 4-bit generic modulo-m residue adder one for irreversible 4-bit generic modulo-m ripple residue adder and another for 4-bit generic modulo-m carry look ahead adder. Proposed architectures are analyzed in terms of power, delay, garbage o/p, constant inputs and transistor count using 180nm technology node at 1.8 v with operating frequency of 200 MHz. It is observed that DPG based Reversible Residue Ripple adder has 40% more efficient than irreversible Residue Ripple adder and RMF based Reversible Residue CLA adder has 33% more efficient than irreversible Residue CLA added. The implementation is based on Reversible pass transistor Logic (R-CPL). © 2014 IEEE.

Devi Tejashwini G.,Padmasri Dr Bv Raju Institute Of Technology | Raju I.B.K.,Padmasri Dr Bv Raju Institute Of Technology | Chary G.,Padmasri Dr Bv Raju Institute Of Technology
Proceedings of the IEEE International Caracas Conference on Devices, Circuits and Systems, ICCDCS | Year: 2014

In this paper, the design and performance of basic Digital (AND, OR, NAND, NOR, XOR, XNOR, NOT, Half-Adder) and Analog (Current Mirror, Cascode Current Mirror, Comparator) circuits using 20nm FinFET technology has presented. 20nm FinFET technology has been used for improvement in performance and for optimizing power mainly in Analog circuits. In this work, for different widths of NMOS and PMOS and low voltages, better results of power performance is observed in both digital and analog circuits using FinFET technology. © 2014 IEEE.

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