Volume 6 | Issue 2 |

 Abstract

Due to the increased Electricity consumption Renewable energy sources such as sun, wind etc., are widely adopted for Electric Power generation. Integration of Renewable energy sources to the grid plays a major role in utilization of energy. Renewable energy sources cannot be directly connected to the grid. Power Electronic converters play a major role in interfacing renewable energy sources to grid or load. The poor quality of voltage and current of a conventional inverter fed induction machine is due to the presence of harmonics and hence there is significant level of energy losses. The Multilevel inverter is used to reduce the harmonics. The inverters with a large number of steps can generate high quality voltage waveforms. The higher levels can follow a voltage reference with accuracy and with the advantage that the generated voltage can be modulated in amplitude instead of pulse-width modulation. This paper discusses photovoltaic (PV) based Multilevel inverter fed Induction Motor topology with involves Pseudo carrier modulation technique as control scheme. The topology offers much less total harmonic distortion. The PV system is verified through simulation in MATLAB/SIMULINK and the FFT spectrums for the outputs are analyzed to study the reduction in the harmonics.

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 Keywords

Induction Motor, Multilevel three phase inverter, THD, Renewable energy sources

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 Abstract

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Al6061, graphite, case hardening, nitriding, composites, mechanical properties

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Lectins are a class of non-covalent carbohydrate-binding proteins of non-immune origins; possessing at least one non-catalytic domain, they can reversibly recognize and bind to monosaccharides or oligosaccharides. Legume lectins have been demonstrated to possess antifungal and antiproliferative potency on tumor cells. Seed lectin from Linumusitassimum (flax) was extracted and partially purified by acetone precipitation followed by DEAE-cellulose ion exchange chromatography and Sephadex G-100 gel filtration chromatography. Carbohydrate binding specificity of lectin was determined by the hemagglutination method and found to be specifically binding to N-acetyl galactosamine. Purified lectin was characterized for their biological activity like antiproliferative, antioxidant, anti-inflammatory and antimicrobial activity using in vitro assays and found to possess significant biological activities.

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 Keywords

flax, lectin, hemagglutination, carbohydrate binding, anti-oxidant

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

From the latter part of the last decade, the distributed paradigm of computing, that offers services and products on a demand basis known popularly as cloud computing, has been on the rise. Cost-effective and easy to work with, the cloud has been adopted by businesses small and big. With the proliferation of such a huge and networked paradigm of computing the need for security has also become imperative. Especially the field of forensics in relation to the cloud has to be developed in order to recreate an incident that has led to a crime or is a criminal activity in itself. The demands of cloud forensics are exponentially greater than the demands of digital forensics. This paper focuses on issues in cloud forensics, some important frameworks and a few inferences.

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 Keywords

Cloud Computing, Cloud Forensics, Frameworks

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 Abstract

Masonry infill is generally considered as non structural element. Structures with brick work infill wall in RC buildings generally increase stiffness and strength of the frame structure. The infills are normally not considered in the design of buildings as they are designed as bare frames. This study investigates the effect of masonry infill wall to check non linear behavior of RC frame building. For this purpose, Three RC frame buildings of G+20 i.e. regular building and buildings with vertical irregularity are considered (with bottom story considering as soft story/open story). For modeling masonry infill wall the equivalent diagonal strut approach is adopted. Displacement v/s base shear curves (pushover curves) are obtained for the structures using ETABS Nonlinear version 2016 software. To obtain pushover curves, Non linear analysis is carried out and results are presented in comparison with bare frame and with infill wall frame with soft story or open story. From the pushover curves, story displacements, inter-story drift, base shear are determined.

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 Keywords

Masonry infill wall, diagonal strut, pushover analysis, performance point, pushover curve.

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 Abstract

Environment pollution by toxic heavy metals (HM) presents a real life threat for human health. Accumulation of heavy metals like Cadmium, Mercury, Cobalt and Copper in water causes toxic actions if the tolerance level is exceeded. Alkaline Phosphatase (ALP) activity was used for estimation of heavy metal ions in drinking water. It was based on inhibition of Alkaline Phosphatase enzyme activity exerted by metal ions. Kinetics of ALP was performed and maximum activity was found to be at using 2U/ml concentration of enzyme and hence was chosen for further studies. ALP immobilization was carried out by sol-gel method and sodium alginate method on two different surfaces: glass and stainless steel. Inhibition characteristics of ALP were tested using different concentrations of individual heavy metals ranging from 10mM to 10-5mM and also using combination of heavy metals of concentration 10-4mM.The reaction showed uncompetitive inhibition. Amongst the four heavy metals used, the amount of inhibition was found to be more in mercury compared to other metals.

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 Keywords

Alkaline Phosphatase, Sol-Gel, Inhibition, meal ions

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 Abstract

The main aim of our study is to resist the vibrations in the structures from failure of building which are caused during the earthquake and to transmit the loads to the earth ground by which we gain strength and durable to the structure which acts due to the lateral loads. The dampers are introduced in the design of earthquake resistant structures by which it reduces the vibrations. There are different types of dampers in the earthquake resistant structures. The damper FVD250 is used in the analysis. The software used for the analysis is ETABS 2016. Using time history analysis and pushover analysis the results are compared with and without adding FVD. By the recent researches and recent examines the square columns are highly resistant against earthquake than that of rectangular columns in both the analysis done.th results are compared with the Base Shear for Time History.

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 Keywords

fluid viscous dampers, pushover analysis, time history analysis response spectrum curves, base reactions, storey maximum and average lateral displacements, base shear, Eigen values.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Actinomycetes,Streptomyces

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Resource allocation, constraint programming and scheduling of jobs.

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Creative Commons Attribution 4.0 and The Open Definition

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Abstract It introduces the object tracking robot [6] which is directed by wheels and managed with some software along with the computer. The goal of object tracking is to depiction a robot which is cardinally maintained by computer to follow and track the colored object. The significance is given on rigor robotic vision based [1] functions. Image capturing by the trolley is achieved by pi camera, and captured colored object moves to image processing for further dispensation. A new vision-based methodology to the illustration and appreciation of human movement [7] is obtainable. Object tracking is in recent times becoming ever more essential in the field of image processing and analysis. Uses like user-computer interaction, traffic-control, online video exemption and making and video observation need consistent and economically judicious image tracking tools. We reason that the path-following way may still be more proper in some states, and we suggest that the perfect person resulting performance may be a hybrid methodology, with the robot routinely choosing which method to use.

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 Keywords

Face recognition, Object tracking, and Vision based system.

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Creative Commons Attribution 4.0 and The Open Definition