Malla Reddy Engineering College

Hyderabad, India

Malla Reddy Engineering College

Hyderabad, India
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Bernadette Cynthia J.,SASTRA University | Kamalambikai B.,SASTRA University | Prasanna Kumar R.,Malla Reddy Engineering College | Dharini K.,SASTRA University
IOP Conference Series: Earth and Environmental Science | Year: 2017

The present study investigates the effect of reinforcing the sub grade soils with RBI 81 material. A soil nearby was collected and preliminary tests were conducted to classify the soil and it was found from the results that the sample collected was a poorly graded clay. Subsequently Tests such as Proctor Compaction, CBR, and UCC were conducted to study the various engineering properties of the identified soil. In addition to the above tests were also conducted on the soil by reinforcing with varying percentages of RBI 81. From the analysis of test results it was found that this material (RBI 81) will significantly improve the CBR value of the soil. © Published under licence by IOP Publishing Ltd.

Raja T.,Sathyabama University | Mathiselvan G.,Sathyabama University | Sreenivasulureddy M.,Malla Reddy Engineering College | Goldwin Xavier X.,Loyola Institute of Technology
IOP Conference Series: Materials Science and Engineering | Year: 2017

safety in automotive engineering has been considered as a number one priority in development of new vehicle. A brake system is one of the most critical systems in the vehicle, without which the vehicle will put a passenger in an unsafe position. Temperature distribution on disc rotor brake and the performance brake of disc rotor is influenced by the air flow around the disc rotor. In this paper, the effect of air flow over the disc rotor is analyzed using the CFD software. The air flow over the disc rotor is increased by using a duct to supply more air flow over the disc rotor. The duct is designed to supply more air to the rotor surface and it can be placed in front of the vehicle for better performance. Increasing the air flow around the rotor will maximize the heat convection from the rotor surface. The rotor life and the performance can be improved. © Published under licence by IOP Publishing Ltd.

Noel D.,QIS Institute of Technology | Ramesh Mamilla V.,QIS Institute of Technology | Bharat Kumar Y.,Malla Reddy Engineering College | Trinath V.,Malla Reddy Engineering College
Materials Today: Proceedings | Year: 2016

Present work includes preparation of HOME by honge oil and blending it with the diesel to use as CI engine fuel. Performance tests were carried out on single cylinder four stroke water cooled CI engine connected to an eddy current dynamometer with different percentage of HOME blended with the diesel at variable loads and constant rated speed. And found that H20 & H40 blends have relatively higher BTHE as that of neat diesel similarly volumetric efficiency of H20 is closer to neat diesel. Whereas peak pressure for neat biodiesel i.e. H100 is slightly higher than that of neat diesel. © 2016 Elsevier Ltd. All rights reserved.

Kumar N.P.,Malla Reddy Engineering College | Reddy B.R.,JNTUH College of Engineering | Ramacharyulu N.C.P.,National Institute of Technology Warangal
ARPN Journal of Engineering and Applied Sciences | Year: 2011

In this paper a mathematical model of commensalism between two species (S 1 and S 2) with limited resources is investigated. The commensal species (S 1), in spite of the limitation of its natural resources flourishes drawing strength from the host species (S 2). This model is characterized by a pair of first order non-linear coupled differential equations. All the four equilibrium points of the model are identified and the criteria for the stability are discussed. The non-linear coupled system-equations are solved numerically by employing fourth order Runge-Kutta method and the results are presented. Further, some threshold results are stated. © 2006-2011 Asian Research Publishing Network (ARPN).

Vattikuti S.V.P.,Yeungnam University | Byon C.,Yeungnam University | Chitturi V.,Malla Reddy Engineering College
Superlattices and Microstructures | Year: 2016

Hexagonal WS2 platelets have been synthesized via simple hydrothermal synthesis method. The hexagonal WS2 is formed by the oriented attachment (OA)-self-assembly (SA). The thickness of the WS2 platelets was between ∼20 and 100 nm. The specific surface area of these platelets is 94.63 m2 g-1. The hexagonal WS2 platelets exhibited excellent photocatalytic activity compared to irregular WS2 platelets for the degradation of rhodamine B (RhB) under visible light irradiation. This work paves the method for designing hexagonal shaped WS2 platelets with great potential for a wide spectrum of applications in photocatalysis. Moreover, this synthetic procedure may open up an opportunity to tailor the morphologies of the other nanomaterials especially transition metal sulfides. © 2016 Elsevier Ltd. All rights reserved.

Ranganayakulu K.,National Institute of Technology Warangal | Murthy N.Y.S.,Malla Reddy Engineering College
Journal of the Indian Chemical Society | Year: 2011

The angular dependence of the C-H/C-D bond for a stabilization of the developing carbonium ion in the transition state of the solvolysis reaction of cycloalkyl halides has been investigated. This has been achieved by studying the rate of solvolysis of eight cyclic β-deuterated 1-alkyl-1-chloro cycloalkanes. Reaction rates for the solvolysis of both β-C-H and of the corresponding β-C-D compounds have been determined and the difference in the rate ratio i.e. k H/k D was attributed to the differential hyperconjugative effects exerted by β-hydrogens in different ring systems. By varying the ring size from C 5 to C 12 the dihedral angle of C-H bond in relation to the vacant "p" orbital on the trigonal carbon, (carbonium ion transition state) changes leading to changes in hyperconjugative stabilization of the intermediate carbonium ion with a consequent change in the rate of solvolysis. β-Deuterium isotope effects thus obtained for different cyclic systems were related with the actual bond angles between β-C-H bonds and the developing carbonium ions. Using the Allinger's force field calculations the best geometry for both the carbonium ions and the starting halo hydrocarbons were calculated.

Bose B.,Malla Reddy Engineering College | Sane S.S.,Veermata Jijabai Technological Institute
ICWET 2010 - International Conference and Workshop on Emerging Trends in Technology 2010, Conference Proceedings | Year: 2010

Advancements in communication technologies have given rise to Mobile Database Systems (MDS). MDS allows a mobile user to initiate transactions from anywhere and at any time and guarantees their consistency preserving execution. Transaction processing in MDS has been suggested by modifying the traditional two and three phase commit (2PC) to accommodate the limitations of a Mobile Host and wireless network like intermitted connectivity, limited power, limited memory etc. A timeout based approach "Transaction Commit on Timeout", TCOT, has been suggested which shows better performance compared to 2PC and 3PC. However, this scheme does not explicitly consider a distributed database system. We propose a scheme Distributed Transaction Commit on Timeout, DTCOT, to commit the transaction in a MDS environment with distributed database. This scheme uses a timeout to decide a commit or abort. DTCOT requires two coordinators: - one for coordinating the entire transaction execution and one, which acts as the interface to the distributed database (i.e. database coordinator). The database coordinator is required because data distribution must be transparent the end user (i.e. transaction coordinator). This is a one-phase protocol due to which the time and message complexity are much lower compared to the conventional 2 phases commit and 3 phase commit protocols. We will compare the performance with the modified 2PC and show that it performs better w.r.t. Message and time complexity. Copyright 2010 ACM.

Nagaraju M.,BioMax | Ramulla S.,Malla Reddy Engineering College | Murthy N.Y.S.,Malla Reddy Engineering College
Asian Journal of Chemistry | Year: 2011

Biogas is an alternate of fuel produced by the action of various groups of anaerobic bacteria on biomass, manure, sewage, municipal waste and green waste. It useful for cooking and for electricity production. Production of biogas and alcohol from the rind of Aloe barbadensis Miller is presented in this communication.

Rao B.S.,Malla Reddy Engineering College | Prasad S.D.V.,Malla Reddy Engineering College
Communications in Computer and Information Science | Year: 2011

In the present research work an attempt has been made to design and implement a tamper detection scheme that provides an additional procedure which detects tampering, given two signatures, whether one of them was generated by the forger. In this system, emails and files are signed digitally. The scheme automatically computes a hash based on the exact content of the email message, and then encrypts the value with the sender's private key. The recipient of the email will use their tamper evidence software to compute the same calculation. The matching of the calculation with the hash value is a proof that the message has not been altered. It ensures the data integrity, confidentiality and authentication. © 2011 Springer-Verlag.

Tallapally S.,Malla Reddy Engineering College
Information Technology and Control | Year: 2012

In the field of cryptography, the three-party authenticated key exchange protocol is an important tool, especially in the secure communication areas. In this protocol, two clients share a human-memorable password with a trusted server whereby the two clients receive a secure session key. Most recently, Huang proposed a simple and efficient three party password-based key exchange protocol. She claimed that the proposed protocol is secure against various attacks. However, Yoon and Yoo proved an undetectable online password guessing attack on Huang's protocol. In the present paper, an unknown key share attack on Huang's three party PAKE protocol using undetectable online password guessing attack is demonstrated. Additionally, an alternative protocol that eliminates this attack is proposed. Moreover, the proposed protocol requires only four message transmission rounds.

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