Koneru Lakshmaiah College of Engineering

Vijayawada, India

K L University, officially the Koneru Lakshmaiah Education Foundation, is a deemed university located in the Vaddeswaram Guntur District of Andhra Pradesh, India. K L University consists of 11 academic departments and six schools, with a strong emphasis on scientific and technological research.Established in 1980, the college is located on a 100-acre site adjacent to Buckingham Canal, and is about 8 kilometres from Vijayawada in Krishna District and 20 km from Guntur City. The institution is recognized by the All India Council for Technical Education, New Delhi, has been accredited by the National Board of Accreditation, and is certified by ISO 9001 - 2000. It has been accredited by National Assessment and Accreditation Council with an A grade. Wikipedia.

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Keerthy V.,Koneru Lakshmaiah College of Engineering | Kumar Y.H.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Objective: This paper manages the quality properties of geopolymer concrete. The primary point of this anticipate is to utilize ground granulated impact heater slag and fly fiery remains set up of common Portland concrete, keeping in mind the end goal to decrease carbon dioxide emanation. Method: From this, we can look at the properties of geopolymer concrete with bond concrete. The fixings utilized as a part of this anticipate are GGBS and Fly cinder. Sodium hydroxide and sodium silicate are utilized as basic activators. The molarity of sodium hydroxide is 8M and 10M. The proportion of soluble activators is 1:2. Calcium silicate is framed when GGBS gets responded with sodium hydroxide and sodium silicate. This calcium silicate goes about as a cover for coarse total and fine total. Findings: The response is said to be exothermic since the warmth is developed when calcium silicate is framed. Henceforth, the underlying warmth is not required to begin the polymerization procedure. The fly fiery remains and GGBS are supplanted in 5 distinctive extents (100% GGBS, 75% GGBS &25% Fly cider, half GGBS &50% Fly slag, 25% GGBS&75% Fly powder,). The curing is finished by putting examples at room temperature. Application: The examples are tried at 7 years old and 28 days, the test incorporates compressive quality, split elasticity, and flexure quality to contrast the outcomes and bond concrete. © 2017 IAEME Publication.

Kishore P.V.V.,Koneru Lakshmaiah College of Engineering | Prasad C.R.,Koneru Lakshmaiah College of Engineering
Materials Today: Proceedings | Year: 2017

Computer automation of rolling stock involves determination of individual parts for examination for defect Identification from the videos of a moving train. Video frame segmentation using Chan Vese active contour model (CV-AC) results in a full bogie binary image making it impossible to track individual parts. To segment individual parts and track their shapes along the length of the train is a challenging task. This challenge is achieved by using shape prior seeds (SP-CV-AC) as destination contour from individual parts of the bogie for the Chan vese active contour model. Spatial distances are used to propel the initial contour towards final shape contour. The results demonstrate the quality of video segmentation algorithm based on destination seed shape priors. Calculating a factual segmentation score (FSS) between the shape prior segments and hand segmented portions of the rolling stock to access the quality of the proposed segmentation algorithm. We further compare shape prior segmentation model with no-shape prior active contours to specify the importance of shape prior models for complex image processing tasks related to intelligent maintenance systems with computer vision. © 2017 Elsevier Ltd.

Suneetha M.,Koneru Lakshmaiah College of Engineering | Ravindhranath K.,Koneru Lakshmaiah College of Engineering
Journal of Chemical and Pharmaceutical Research | Year: 2014

Thermally activated powders of leaves, stems or barks and their ashes of Calotropis Zygantia, Azadiracta Indica and Eichhornia, are found to have affinity towards nitrites at low pH values. The sorption properties of these sorbents have been explored for extracting nitrites from polluted waters by optimizing the physicochemical parameters such as pH, time of equilibration and sorption concentration. The sorption concentration needed for the maximum extraction of nitrite at optimum pH: 2 is less for bark powders and ashes than for leaves powders in the case of Calotropis Zygantia and Azadiracta indica but in the case of bio-materials derived from Eichhornia, the optimum sorption concentration remains the same. The optimum time of equilibration is found to be less with powders of stems or ashes of leaves than with raw powders of leaves for Azadiracta Indica and Eichornia but in the case of materials related to Calotropis Zygantia, the time remains the same. More than 80% removal of Nitrite is noted with bio-sorbents at optimum experimental conditions. Five fold excess of common ions present in natural waters has less effect on the % of extraction of Nitrite at optimum conditions of extraction. The methodologies developed are tested with the real polluted water samples and are found to be remarkably successful. © 2014, Journal of Chemical and Pharmaceutical Research. All rights reserved.

Eswara Kumar A.,Koneru Lakshmaiah College of Engineering | Somanadha Sastry K.,Koneru Lakshmaiah College of Engineering | Manideep K.,Koneru Lakshmaiah College of Engineering | Priyanka M.,Koneru Lakshmaiah College of Engineering
Materials Today: Proceedings | Year: 2017

Most satellite launch vehicles uses flex seal as thrust vector control mechanism to enter safely into the required orbit. Flex seal contains alternative layers of elastomer pads and shims.It will experience different types of loads when rocket launched from the ground. In the present work pre-stressed modal analysis was done to analyze the response of the flex sealsubjected to maximum extended operating pressure by using finite element simulation software Ansys workbench. Non-linear 3D analysis was carried out by varying the number of shims, shim percentage and shim materials. It is observed that there is no considerable change in the frequencies as the numbers of shims are increasing, but there was a change in the frequency with the shim percentage. © 2017 Elsevier Ltd.

Kumar P.U.,Koneru Lakshmaiah College of Engineering | Kumar B.S.C.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2016

In the present study metakaoline and ground Granulated Blast Furnace slag (GGBS) is used to convey Geopolymer concrete. Geopolymer bond is set up by using dissolvable course of action of sodium silicate and sodium hydroxide. This settled extent is 2.5 and the convergence of sodium hydroxide is 10M. This study helps in picking up learning about the morphological arrangement of solid which may bring about way softening patterns up development industry. The paper focuses on investigating characteristics of Ground Granulated Blast furnace Slag (GGBS) and adding metakaoline based Geopolymer Concrete with M40 Grade Concrete. This leads to examine the admixtures to improve the performance of the concrete. The paper focuses on investigating characteristics of Geopolymer concrete with various proportional of replacement of cement with Ground Granulated Blast furnace Slag (GGBS) and adding metakaoline. Efforts are being carried out to conserve energy by means of promoting the use of industrial wastes like Ground Granulated Blast furnace Slag (GGBS), and metakaoline. The reinforcement was designed considering a balance section for the expected characteristic strength. All the specimens are tested by using twopoint loading. © IAEME Publication.

Kubakaddi S.S.,Koneru Lakshmaiah College of Engineering
Physica B: Condensed Matter | Year: 2017

Expressions for the electron power loss F(T) and mobility μp due to acoustic phonon scattering are given in the Bloch-Grüneisen (BG) regime for three- and two-dimensional electron gas in semiconductors and Dirac-fermions. We obtain a simple relation F(T) μp = ηevs 2, where η (~ 1) is a constant, e is the electron charge and vs is the acoustic phonon velocity. It is found to be independent of temperature and electron concentration. This relation is applied to GaAs heterojucntions and graphene, to obtain μp from the measured F(T). We propose that, using this relation, the measurements of F(T), in BG regime, which depends exclusively upon the electron - acoustic phonon coupling, could serve as a tool to determine the low temperature μp, which is otherwise difficult to measure due to the contributions from the lattice disorders. © 2017 Elsevier B.V.

Ravindhranath K.,Koneru Lakshmaiah College of Engineering | Srinivasa Reddy B.,Bapatla Engineering College
Der Pharmacia Lettre | Year: 2015

The sorption properties of plant materials derived from Acasia nilotica Indica, Syzygium cumini and Osismum Sanctum have been explored for the removal of Methylene Blue using the simulated waste waters. The physicochemical parameters such as pH, time of equilibration and sorbent concentrations have been optimized for the maximum extraction of the dye. The bio-sorbents are found to be effective at pH 8 and 10. The optimum Sorbent dosage and equilibration time are found to be less for the ashes than with the raw powders. Fivefold excess of common anions ions, have not interfered with the extraction while Cations like Ca2+, Mg2+ and Cu2+ have shown some interference but Fe2+ and Zn2+ have synergistically maintained the maximum extraction of the dye. The methodologies developed are remarkably successfully when applied to the samples collected from dyeing industries.

Polu A.R.,Koneru Lakshmaiah College of Engineering | Kumar R.,Dr Hari Singh Gour University
Advanced Materials Letters | Year: 2013

Composite polymer electrolyte films consisting of polyethylene glycol (PEG), Mg(CH3COO)2 and Al2O3 particles have been prepared by solution casting technique. The X-ray diffraction patterns of PEG-Mg(CH3COO)2 with Al2O3 ceramic filler, indicates the decrease in the degree of crystallinity with increasing concentration of the filler. The role of ceramic phase is to reduce the melting temperature which is ascertained from the DSC. The effect of ceramic filler on the conductivity of the polymer electrolyte was studied. The maximum ionic conductivity has been observed for 10 wt% of Al2O3 at room temperature (303 K). The transference number data indicated the dominance of ion-type charge transport in these composite polymer electrolytes. Using this (PEG-Mg(CH3COO)2-Al2O3) (85-15-10) electrolyte, solid-state electrochemical cell was fabricated and their discharge profiles were studied under a constant load of 100 kO. Several cell profiles associated with this cell were evaluated and are reported.©2013 VBRI press.

Patel D.,Koneru Lakshmaiah College of Engineering
International Journal of Pharma and Bio Sciences | Year: 2011

Despite their enormous utility and diffusion, atmospheric pressure ionization mass spectrometry techniques are subjected to relevant drawbacks called matrix effects (ME). These effects could be summarized in matrix-dependent signal suppression or enhancement that could lead to erroneous quantitative results. The most important method parameters as well as linearity, precision, and accuracy could be modified due to interfering compounds present in the matrix. No validation methods could be accepted without a thorough evaluation of ME and possible strategies to minimize or to correct their influence should be addressed. Matrix effects result from co-eluting residual matrix components affecting the ionization efficiency of target analytes and can lead to erroneous results. Matrix effects, i.e. ion suppression or ion enhancement, are well known phenomena in liquid chromatography-mass spectrometry (LC-MS). They can be caused by compounds of various origins. Since matrix effects may exert a negative effect on important method performance parameters, they have to be tested for and evaluated during method development/validation. This can either be done by the method of postcolumn infusion or by comparison of signals from neat standards and blank sample extracts spiked with analyte. Wherever possible, matrix effects should be reduced or eliminated by the optimization of chromatographic conditions, improving sample clean-up and/or by changing the type of ionization employed. In the present article, we have concentrated on detailed description of matrix effects in a view of LC-MS/MS.

Bodiga V.L.,Krishna University | Eda S.R.,Koneru Lakshmaiah College of Engineering | Bodiga S.,Koneru Lakshmaiah College of Engineering
Heart Failure Reviews | Year: 2014

Increasing evidence demonstrates that advanced glycation end products (AGEs) play a pivotal role in the development and progression of diabetic heart failure, although there are numerous other factors that mediate the disease response. AGEs are generated intra- and extracellularly as a result of chronic hyperglycemia. Then, following the interaction with receptors for advanced glycation end products (RAGEs), a series of events leading to vascular and myocardial damage are elicited and sustained, which include oxidative stress, increased inflammation, and enhanced extracellular matrix accumulation resulting in diastolic and systolic dysfunction. Whereas targeting glycemic control and treating additional risk factors, such as obesity, dyslipidemia, and hypertension, are mandatory to reduce chronic complications and prolong life expectancy in diabetic patients, drug therapy tailored to reducing the deleterious effects of the AGE-RAGE interactions is being actively investigated and showing signs of promise in treating diabetic cardiomyopathy and associated heart failure. This review shall discuss the formation of AGEs in diabetic heart tissue, potential targets of glycation in the myocardium, and underlying mechanisms that lead to diabetic cardiomyopathy and heart failure along with the use of AGE inhibitors and breakers in mitigating myocardial injury. © Springer Science+Business Media 2013.

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