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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Sekhar H.V.,Koneru Lakshmaiah College of Engineering | Das T.V.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Objective: To study building behavior during earthquakes always depends on its strength, durability, stiffness and adequacy of the regular configuration of the structure. Methods: The analysis always depends on the forces and importance on the cost of analyzing the structure. Creating the 3D building model for both linear and non-linear dynamic method of analyses. Understanding the seismic behavior of Setback buildings and Co-relating the seismic behavior of the Setback building with that of a building without Setback finally comparing the seismic behavior of building with a setback at every two levels to that of the building with a setback at each floor level. Study the influence of vertical irregularity in the building when subjected to earthquakes. Findings: The present study is limited to reinforced concrete framed structure designed for seismic loads (DL, LL & EL). The seismic behavior of three 8-Storied buildings with and without setbacks was studied. The buildings were analyzed using Time History Analysis and Response Spectrum Method and. Novelty: The effect of Setback is studied considering the parameters such as Time Period, storey drifts, Displacements, Storey Shears, Bending Moments and Shear Forces and correlated with the building without a setback. © IAEME Publication.


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.


Ramyasri N.,Koneru Lakshmaiah College of Engineering | Rangarao V.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Objectives: To identify whether the type of soil affects the design parameter of the PSC Bridge and to study the tendency of bending moment, shear force and deflections for pile and pier center at various loads. Methods/Analysis: In this paper pre stressed concrete bridge is analyzed using STAAD-Beava by considering pile foundation at center and at ends abutment is taken as fixed. Here, two models are compared one with soil interaction and the other without soil interaction. Live load, dead load, Moving loads are applied. Moving loads are provided with 3 loading cases i.e. class-A, 70R tracked, 70R wheeled loadings. Findings: Soil structure interaction is an incorporative study which includes the geotechnical and structural engineering. Change in soil property around the piles and below the abutment does not affect the performance of the super structure. Structure design, Foundation designs are calculated without considering soil stiffness. In design, by neglecting interaction effects between soil and bridge may results whether it is unsafe or costly. The massive uncertainty while designing the PSC bridges is at pile foundation due to the reaction of soil. The reaction of lateral soil is nonlinear.Bridge and the supporting soils are examined as one compatible unit in soil interaction. For the above reason, soil properties are taken into account in analysis & design of the soil structure system in order to assure reliable and economical design. Improvements: Effects of soil on abutment for 3 loading cases which are supported by shallow foundation instead of the fixed end. © IAEME Publication.


Chandra Padmakar K.,Koneru Lakshmaiah College of Engineering | Sarath Chandra Kumar B.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Objectives: To study the strength and durability properties of Metakaolin and Ground Granulated Blast Furnace Slag (GGBS) based Geopolymer Concrete mixes at various proportions. Methods/Statistical Analysis: In this connection, Geopolymer is showing great potential and does not need the presence of Portland cement as a binder. Geopolymer concrete is prepared by using an alkaline solution of the suitable chemical composition. Findings: The ratio of the mixture is 2.5 and the concentration of sodium hydroxide is 10M. The geopolymer concrete specimens are cast and tested for different types of strengths for 3, 7, and 28 days and cured at ambient temperature. Applications/Improvements: This study helps in gaining knowledge about the morphological composition of concrete which might result in path-breaking trends in the construction industry. © 2017 IAEME Publication.


Malleswara Rao P.,Koneru Lakshmaiah College of Engineering | Hamantha Raja K.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Objectives: To investigate the properties of metakiolin and GGBS based geopolymer concrete. Methods/Statistical Analysis: In this connection, Geopolymer is need of the hour, where the binder is inorganic polymer. Geopolymer concrete will be introduced as an alternative concrete which did not use any cement in its mixture and used Metakaolin and GGBS as alternative cement. NaOH and Na2SiO3 were used as activator solution. Findings: Geopolymer concrete is prepared by using the solution of sodium silicate mixed with sodium hydroxide. The fixed ratio of sodium silicate to sodium hydroxide is 2.5 and the concentration of sodium hydroxide is 8M. The geo polymer concrete specimens are casted and tested for compressive strength for and 28 days and cured at ambient temperature. Applications/Improvements: This study helps in gaining knowledge about the morphological composition of concrete which might result in path-breaking trends in construction industry. © 2017 IAEME Publication.


Tehaseen S.K.G.,Koneru Lakshmaiah College of Engineering | Kumar J.D.C.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Objective: In the present work G+10 storied RCC building is consider for analysis purpose. Method analysis: The main purpose of this work is to analyze the seismic behavior of RCC structures in different seismic zones i.e. (II, III, IV and V). In the each zone different floor heights are considered (10 buildings for each zone). The total analysis is carried out in the STAAD. Pro software for Gravity and lateral loads (seismic). Findings: By analyzing all these buildings the data base is prepared for worst load combination. The results are compared with corresponding zones and structural elements are designed for worst load combinations as per the Indian standards. The present study is to investigate the behavior of multi storied RCC plane frames considering storey drift and foundation pressure. Applications: The study is to investigate the behavior of multi storied RCC plane frames considering storey drift ands foundation pressure, seismic zones, STAAD. Pro, gravity load, lateral load (seismic), RCC building, different building height. © IAEME Publication.


Keerthi M.,Koneru Lakshmaiah College of Engineering | Prasanthi K.,Koneru Lakshmaiah College of Engineering
International Journal of Civil Engineering and Technology | Year: 2017

Background/Objectives: By using the fly residue as option substance to bond in concrete it reduces the usage of normal Portland cement in usual concrete which results in the development of Geopolymer concrete furthermore in the lessening of CO2 levels which thusly reduces the Global Warming. Methods/Statistical analysis: This paper presents the trial examination done on the execution of coir fibre reinforced fly residue based geopolymer concrete subjected to severe ecological conditions. The mixes were considered for molarity of 10M. The basic arrangement utilized for present revise is the blend of sodium silicate and sodium hydroxide arrangement with the proportion of 1:2.5. Coir fibre with the varying percentages of 0, 0.75, 1.5, 2.25 and 3 are used as fibre reinforcement. The test specimens of 150mmx150mmx150mm cubes, 150mmx300mm cylinders, 1000mmx150mmx150mm beams are cast and cured under encompassing temperature conditions. Findings: The geopolymer solid examples are tried for their compressive quality, flexural and split tractable tests at 7days, 14days and 28days. The test grades demonstrate that the blend of fly ash and coir fibre can be used for the improvement of geopolymer concrete. Applications: It possesses superior distinctiveness such as high strength, very little drying shrinkage, low creep, durable nature, eco-friendly, fire proof, better compressive strength etc to be used as an alternative of OPC. © 2017 IAEME Publication.


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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