Mohamed Sathak Engineering College

Keelakarai, India

Mohamed Sathak Engineering College

Keelakarai, India
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Mythili N.,Mohamed Sathak Engineering College | Arulmozhi K.T.,Annamalai University
Journal of Materials Science: Materials in Electronics | Year: 2017

We reported the structural, dielectrical properties and AC conductivity of the chemically synthesized Zinc doped α-PbO nanoparticles after it was calcined at 240 °C in air. X-ray diffraction analysis was used to find the tetragonal structure in the prepared samples which belongs to α phase of PbO. Dielectric properties were measured in the temperature range of 25–250 °C and the frequency range of 1 Hz–7MHz using Broad band dielectric spectroscopy. Dielectric constant shows the frequency independent behavior at high temperature. Loss tangent decreases with increase in frequency which reveals the suitability in high frequency devices. Zn2+ doping enhances the conductivity of PbO due to the mobility of charge carriers by substitutional defects. Variations in the electrical and dielectrical behavior with respect to frequency, temperature and composition of Zn2+ doping on PbO nanoparticles were discussed in detail. © 2017 Springer Science+Business Media New York

Jayaseelan C.,Mohamed Sathak Engineering College | Athijayamani A.,Government of Tamilnadu | Ramanathan K.,Alagappa Chettiar College of Engineering And Technology
BioResources | Year: 2017

The present investigation reports the mechanical properties of banana short fiber, macro particle, and micro particle reinforced epoxy composites. Mechanical properties, such as tensile, flexural, and impact strength, of three different composites were studied and compared based on the three different fiber contents (25 wt%, 30 wt%, and 35 wt%). The composites were prepared by a compression moulding method for which the mixture containing the reinforcing agents and resin matrix was prepare dusing a mechanical stirrer. The scanning electron microscopy (SEM) analysis revealed the failure mechanism and the resulting damage that occurred in the composites. The short fiber composite with 35 wt% content showed the highest tensile strength (35.59 MPa), whereas the macro particle composite with 35 wt% content showed the highest flexural strength (67.16 MPa). In the case of the impact strength, both the short fiber and macro particle composites showed the highest impact strength (0.32 J). The mechanical properties of epoxy composites increased substantially with increase of content of reinforcing agents (short fiber, macro particle, and micro particle).

Karthikeyan R.,Mohamed Sathak Engineering College
Cluster Computing | Year: 2017

Popularity of cloud computing is being increased drastically by the use of people all over the world in their comfort zone. For the purpose of withholding the performance of cloud, it is significant to design an efficient scheduling methodology. Researches have designed methods like directed acyclic graph, MinES, MinCS, ant colony optimization, cross-entropy stochastic scheduling, interlacing peak scheduling method, etc for enhancing cloud and user experience. The major problem existed in these methods was higher execution time, overload issues and higher power consumption. To overwhelm the problems, we design a novel framework that is comprised with queue manager (QM), scheduler (SH), virtual machine manager (VMMA), VM allocator (VMA) and VM power manager (VMP). Firstly, in QM the incoming tasks are split into two queues based on task’s deadline, they are represented as urgent queue (UQ) and waiting queue (WQ). Secondly, we perform hybrid scheduling which combines grey system and neural network (GSNN) that considers three significant parameters as task length, CPU intensive and memory intensive. This GSNN scheduling is enabled to withstand effectively even for ‘N’ number of tasks and that leads to minimization of execution time. Then thirdly, each task is allocated to corresponding VM with respect to the capacity and workload of VM. Finally VMP keeps updating the VM information for computing the underutilized hosts then it performs VM migration to put up the idle host to OFF state, for reducing the unwanted power consumption. Simulation results of our entire framework shows improvements when compared with state-of-the-art methods. © 2017 Springer Science+Business Media New York

Syed Abu Thaheer A.,Mohamed Sathak Engineering College | Jayabal S.,Alagappa Chettiar College of Engineering And Technology
Indian Journal of Engineering and Materials Sciences | Year: 2013

The tensile, flexural, impact and abrasion loss behaviors of Al2O3 impregnated coir fiber-reinforced polyester composites are evaluated. The short untreated coir fibers are used as reinforcements in polyester matrix. The effects of fiber length, fiber diameter and filler content on the mechanical properties of alumina-coir-polyester composites are studied by developed regression models in this investigation. The optimum parameters for better mechanical properties are determined using response surface methodology approach.

Athijayamani A.,Alagappa Chettiar College of Engineering And Technology | Sathiyamurthy S.,Anna University | Syed Abu Thaheer A.,Mohamed Sathak Engineering College
Journal of Natural Fibers | Year: 2010

In recent years, the interest of scientists and engineers has turned over on utilizing all plant fibers as effectively and economically as possible to produce good quality fiber-reinforced polymer composites for structural, building, and other needs. It is because of the high availability of the natural resources in this green world. This has led to the development of alternative materials instead of conventional or man-made materials. Among the various natural fibers, roselle fibers were used traditionally in age-old applications in the form of the high-strength ropes and floor mats etc. It is of particular interest because its composites have high tensile strength as in jute, kenafandhemp, besides having moderate impact strength properties compared with other natural fibers. This paper reviews the research published in the field of natural fiber-reinforced polymer composites, with special reference to the effect of moisture absorption and alkali treatment on the mechanical properties. However, the reviews were extended to the machinability and the application of the soft computing technique for prediction and optimization of mechanical properties and fabrication parameters of natural fiber-reinforced composites for the development of roselle fiber polyester composite. © Taylor & Francis Group, LLC.

Karthikeyan R.,Mohamed Sathak Engineering College
Proceedings of 2012 IEEE International Conference on Advanced Communication Control and Computing Technologies, ICACCCT 2012 | Year: 2012

Cloud computing provide utility based IT services that is pay only for what we use. In current scenario, power consumption is one of the most critical problems in cloud data centers. Cloud applications consume huge amount of energy, high operational cost, carbon emission to the environment. This paper focuses heuristics energy efficiency approach to reduce the energy consumption and carbon emission by using efficient VM migration algorithm. To enhance the quality of services, improved version of auto scaling technique as scalable frame work can be used. In this technique cloud resources can be allotted and booted quickly to meet response time requirements depends up on incoming load. In addition to that we will also observe what are the challenges faces during the implementation and what are the performance metrics have to be taken. © 2012 IEEE.

Thaheer A.S.A.,Mohamed Sathak Engineering College | Jayabal S.,Alagappa Chettiar College of Engineering And Technology
Indian Journal of Fibre and Textile Research | Year: 2013

Mechanical properties of coir-polyester composites filled with aluminium oxide and calcium carbonate particles have been evaluated. As the mechanical properties of coir-polyester composites mainly depend upon the fibre length, fibre diameter and filler content, the present study deals with the prediction of mechanical properties using artificial neural network and determination of optimum fibre parameters using response surface methodology algorithms. The particles filled coir-polyester composites exhibit better values of tensile strength, flexural strength, impact strength and abrasion loss properties of 21.39 MPa, 79 MPa, 37.28 kJ/m2 and 570 mm3 for 42.41 mm fibre length, 0.25mm fibre diameter and 2.5% filler content respectively.

Suresh Kumar U.,Mohamed Sathak Engineering College | Manoharan P.S.,Thiagarajar College of Engineering
Energy Conversion and Management | Year: 2014

With the increasing threat to environment and the fast depleting fossil fuel resources, hybrid power systems consisting of two or more renewable energy sources such as solar PV, wind, biomass, ocean thermal-with or without the back up of diesel generator have come to the forefront. These hybrid systems are normally integrated with battery banks for total reliability; such systems have brought about better quality of life in remote areas of developing economics. The remote areas in the state of Tamil Nadu in India possess excellent renewable energy sources. These areas fall under different climatic zones, are sparsely populated and are in the process of development. Though these areas are connected to the grid, Tamil Nadu grid is not stable; it is currently experiencing 40% short fall in generation. Thus grid power is available to these remote areas only for 10 h a day and even when available, there are voltage frequency problems. This paper analyses the economic feasibility of installing and operating hybrid systems in these areas. The areas are divided into different climatic zones and the hybrid system economy is analyzed for each climatic zone on the basis of NPC (net present cost), consumption of diesel and renewable fraction for all climate zones. The analysis indicates that the interior climatic zone - the area would be the optimum climatic zone to install HPS PV/diesel. The sensitivity analysis proves that the NPC of such a system can be reduced. It is suggested that due to high initial cost, government subsidy is necessary to adopt the system on a large scale. Such a profit will encourage development of renewable energy utilization and bring about rapid development of these remote areas. © 2014 Elsevier B.V. All rights reserved.

Sheik Arafat I.,Mohamed Sathak Engineering College | Balamurugan N.B.,Thiagarajar College of Engineering
Journal of Nanoscience and Nanotechnology | Year: 2016

The present work explores the impact of scattering in carrier transport of near-ballistic SiNW MOSFET. For the first time, a scattered SiNW MOSFET model is revealed which includes the effects of optical phonon emission, elastic scattering, surface roughness scattering and random discrete dopants. Impact of above mentioned combined scatterings in the device limits electron mobility which makes a remarkable decrease in device current and transconductance compared with our previous model and Natori's Ballistic transport model. This work discusses the detailed behavior of analog parameters like Transconductance (gm), Transconductance generation factor (gm/Id) and Early Voltage (VA). The proposed model has been validated by comparing the analytical results with the TCAD simulation results and it shows the good agreement. Copyright © 2016 American Scientific Publishers All rights reserved.

Deepan G.,Mohamed Sathak Engineering College
2013 International Conference on Energy Efficient Technologies for Sustainability, ICEETS 2013 | Year: 2013

In diesel engines, NOx formation is a highly temperature dependent phenomenon and takes place when the temperature in the combustion chamber exceeds 2000 K. Therefore in order to reduce NOx emissions in the exhaust, it is necessary to keep peak combustion temperatures under control. One simple way of reducing the NOx emission of a diesel engine is exhaust gas recirculation (EGR) method. A heat exchanger arrangement is provided for obtaining different EGR methods. The performance parameters were studied with and without exhaust gas recirculation of different methods with 2 litre per minute to 8 litre per minute of EGR. The recycled exhaust gas lowers the oxygen concentration in the combustion chamber and increases the temperature of intake charge which lowers the flame temperature and leads to lower NOx formation. Compression ratio is one of the important parameters which influence the performance of the Direct Injection Diesel engine. The main aim of this work is to carry out experimental investigation to establish the performance and emission of variable compression ratio diesel engine using different quantities of partly cold EGR on exhaust gas temperatures. The Effect of EGR is which in turn reduces the NOx and increases the performance characteristics at the compression ratio of 17-1. © 2013 IEEE.

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