Informatics Publishing Limited

N. Balasubramani ¹, R. Thenmozhi ²

Affiliations
1 Department of Civil Engineering, Sri Ramakrishna Mission Vidyalaya Polytechnic College, Coimbatore 641 020, Tamilnadu, IN
2 Department of Civil Engineering, Government College of Technology, Coimbatore, 641 013, Tamilnadu, IN

Abstract

This paper presents the experimental study of six Double Skinned Hollow Concrete Filled steel Tubular (DSHCFT) columns consisting of PVC inner and mild Steel outer pipes in-filled with Self Compacting Concrete (SCC). The grade of SCC and the yield strength of steel used were M35 and 250 MPa respectively. The Columns were tested for axial load and Loaddeflection, Ultimate compressive strength were studied and reported. The experimental results are verified with European Code (EC4) and found as conservative. The PVC tube is found as a reasonably suitable alternate material for moderately loaded DSHCFT columns.

Keywords

DSHCFT, Ductility, Load – Deflection, PVC Inner-Steel Outer, SCC, Ultimate Load.

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R. Thenmozhi ¹, S. Govindarajan ², F. EzhilMaryArasi ¹

Affiliations
1 SRM University, Chennai, IN
2 Department of Computer Application, SRM University, Chennai, IN

Abstract

A Wireless Sensor Network (WSN) consists of spatially distributed autonomous sensors to cooperatively monitor physical or environmental conditions. Providing end-to-end data security in wireless sensor network (WSN) is a non-trivial task. In addition to the large number and severe resource constraint of sensor nodes, a particular challenge comes from potential insider attacks due to possible node compromise, since a WSN is usually deployed in unattended/hostile environments. Compromised node and denial of service are two key attacks in Wireless Sensor Network (WSN). Here, we study the data delivery mechanisms to overcome these attacks with high probability of circumventing black holes. Classic multipath routing approaches are vulnerable to such attacks, mainly due to their deterministic nature. Once the adversary acquires the routing algorithm, it can compute the same routes known to the source and make all information sent over these routes vulnerable to its attacks. In this paper, we develop mechanisms that generate randomized multipath routes. Under our designs, the routes taken by the “shares” of different packets change over time. So even if the routing algorithm becomes known to the adversary, the adversary still cannot pinpoint the routes traversed by each packet. Besides randomness, the generated routes are also highly dispersive and energy efficient, making them quite capable of circumventing black holes.

Keywords

Black Holes, Randomized Multipath Routes, Secure Data Collection, Wireless Sensor Network.

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R. Thenmozhi ¹, S. Prabhu ¹, M. Arumugam ¹

Affiliations
1 Arunai Engineering College, Thiruvannamalai, IN

Abstract

This paper presents two criteria for evaluating the motoring operations of switched reluctance hub motor (SRM) drives for electric vehicles (EVs). They imply motoring torque and copper loss. To fulfil the best motoring operation, by using two weight factors and two base values, the developed optimization function selected as the correct balance between the maximum average torque and the maximum average torque per copper loss. The stator and rotor pole arc angles are selected as the optimized variables. Simulations results have demonstrated the proposed optimal design method. Therefore, this paper offers a valuable and feasible approach for implementing the best motoring operation of SR Hub Motor drives for EVs.

Keywords

Design, Switched Reluctance Hub Motors (SRHMs), Electric Vehicles (EVs), Optimization.

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R. Thenmozhi ¹, M. Priyadharshini ¹, V. Vidhya Lakshmi ¹, K. Abirami ¹

Affiliations
1 Department of CSE, SMVEC, Puducherry, IN

Abstract

Web applications consist of several different and interacting technologies. These interactions between different technologies can cause vast security problems. As organizations are taking their businesses online they make their systems accessible to the world. They might have a firewall in place and possibly even their web server is running an up-to-date version of its software but that is not enough to protect their resources. Web applications become integral part in our day today life. Recent studies proves that more than fifty percent of the cost of software development is expend towards for testing, even though the software web applications is not free from its critical issues. Vulnerabilities provides more critical outcome in web applications instead in various researches have been involved with major impact of vulnerabilities. Recently the web applications are tested with minimal parameters. The main objective of proposed work is to reduce the time consumption and high cost for software testing. And in this paper we also tell about other possible vulnerabilities and their control measures. Using static analysis the critical vulnerabilities are analyzed where the issues are arising in web applications. The critical vulnerabilities such as handling catch block, encrypted password, execution failure in exception handling and redirecting the values of parameter. Depends on the severity of the issues the vulnerabilities are classified with the solutions.

Keywords

Cross-Site Scripting (XSS), Empty Catch Block, Open Redirect SQL Injection, Storing Passwords in a Recoverable Format, Uncaught Exception.

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R. Thenmozhi ¹, M. Priyadharshini ¹, V. Vidhya Lakshmi ¹, K. Abirami ¹

Affiliations
1 Department of CSE, SMVEC, Puducherry, IN

Abstract

Mobile technologies are increasingly growing in developing countries like India Mobile healthcare provision in the home environment presents many challenges. Mobile Healthcare is a term used for the practice of medicine and public health supported by mobile devices. It is most commonly used in the reference to using mobile communication devices such as mobile phones, tablet & computer PDAs. Nowadays, mobile has become a prominent tool, not only in urban regions but also in remote and rural areas. Mobile healthcare, in the home environment presents many new challenges. A wireless sensor network with a large number of sensor nodes can be used as an effective tool for gathering data in mobile healthcare situations. The work includes a detailed study of mobile healthcare system in various aspects. Various algorithms and techniques, for effective healthcare are addressed in this paper. After analyzing, the survey is concluded with several promising directions for further research in mobile healthcare system.

Keywords

Bilinear Pairing Techniques, Mobile Health Care System, Wireless Sensor Network, Collaborative Algorithm, Recommendation Algorithm.

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R. Thenmozhi ¹, N. Balasubramani ²

Affiliations
1 Deptt. of Civil Engineering, Government College of Technology, Coimbatore, Tamil Nadu, IN
2 Deptt. of Civil Engineering, Sri Ramakrishna Mission Vidyalaya Polytechnic College, Coimbatore-641 020, T.N., IN

Abstract

This paper aims to focus on the possibility of using 10% of coconut shell aggregate (CSA) replaced for coarse aggregate in self compacting concrete (SCC) containing 25% fly ash (FA) prepared using additives of super plasticizer and viscosity modifying agent. The SCC with normal aggregate containing FA 25% is taken as (SCC), a reference and in the same mix, 10% of coconut shell aggregate is replaced for coarse aggregate. The fresh and hardened properties in both the SCC (M25) and SCC-CSA are studied in laboratory experiments. The possibility of potential use of coconut shell being one of the major agro-wastes in South India, as partial replacement of coarse aggregate in making a special concrete such as SCC-FA-CSA in structural component is verified and discussed. The research encourages potential use of the agro-waste known as CSA. It instantaneously reduces the consumption of normal natural stone aggregates apart from serving as a means of combining the CSA with abundantly available fly ash from thermal power stations and in turn help protect our mother earth and its environment by the precious minimised use of normal aggregate.

Keywords

Self Compacting Concrete, Fly Ash, Coconut Shell Aggregate, Solid Waste.

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R. Thangaraj ¹, R. Thenmozhi ²

Affiliations
1 Department of Civil Engineering, CMS College of Engineering and Technology, Coimbatore-641 032, T. N., IN
2 Department of Civil Engineering, Thanthai Periyar Govt. Institute of Technology, Vellore-638 002, T. N., IN

Abstract

A large number of structural properties of plain concrete are improved with addition of admixtures to concrete. It is well known that the addition of fly ash to plain concrete improves workability, strength, durability, less permeable and more stable. In conventional concrete the flexural strength reaches a maximum value between 14 and 28 days. In high volume fly ash (HVFA) concrete the strength keeps on increasing with age because of pozzolanic reaction of fly ash and strengthening of the interfacial bond between cement paste and aggregate. The use of fly ash as a partial replacement for Portland cement will usually reduce water demand and bleeding of HVFA concrete ranges from negligible to very low. Only few research works have been carried out earlier on flexural study on R C conventional beams without fly ash. Therefore in this investigation an attempt has been made to study any likely improvement on the effect of fly ash on the properties of HVFA concrete in R C beam elements with confinement of stirrups in compression zone. It has been suggested that the effective use of fly ash minimizes the disposal of fly ash, which also solves an environmental problem. This HVFA concrete is easy to pump, consolidate and finish the surface, free from cracks, reduces carbondioxide emissions, superior environmental friendliness, reduction in stone mining since it consumes less volume of Portland cement. The methodology adopted above improves ductility and improves the rotation capacity of the joints of framed structure, thus, improving the ultimate load carrying capacity. An attempt is also made to compare the load versus deflection of the HVFA concrete beams with conventional RCC beams and evaluated the performances of the proposed method of confinement. The results indicated that the confinement in the form of stirrups improves the ultimate strength and ductile behaviour of the concrete (IS 3812-1981). An attempt has been made in the present paper to highlight the utilization of fly ash in construction.

Keywords

Fly Ash, HVFA Concrete, Plasticizer, Structural Properties, Pozzaolanic Reaction.

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T. Senthil Vadivel ¹, R. Thenmozhi ²

Affiliations
1 Department of Civil Engineering, Erode Sengunthar Engineering College, Thudupathi, Erode-638 004, T. N., IN
2 Department of Civil Engineering, Government College of Technology, Coimbatore, T. N., IN

Abstract

In recent years waste handling and management is the primary issue faced by countries all over the world. It is very challenging and hectic problem that has to be tackled in an indigenous manner. On the basis of statistical data provided by the Environmental Protection Agency (EPA) 270,000,000 millions waste tyres are produced each year. The disposal of the waste tyres in landfills is a major issue handled by the local municipalities and government sectors. The statistical study gives an estimate that within the next decade the majority of the landfills used for the waste tyre disposal shall be closed and this poses the problem of need for lands for waste dumping. This new problem gave an idea of recycling of waste tyres instead of filling them in bare lands. Recycling of waste is a process adopted by any industry for efficient resource management. The discharge of waste tyres into expensive and the continuously decreasing numbers of landfills generates significant pressure to the local bodies identifying the potential application for these waste products. In this paper an experimental study is conducted to analyse the behaviour and failure characteristics of rubberized concrete where waste tyre rubber is partially replaced with coarse aggregate.

Keywords

Waste Tyre Rubber, Coarse Aggregate, Rubberized Concrete, Recycling of Waste.

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Sunilaa George , Jino John , P. N. Magudeswaran ¹, R. Thenmozhi ²

Affiliations
1 Department of Chemistry, VLB Jankiammal College of Engineering and Technology, Coimbatore, IN
2 Department of Civil Engineering, Govt. College of Technology, Coimbatore, T.N., IN

Abstract

River sand is widely used for concrete as fine aggregate. The increased cost of river sand and depletion in ground water table due to illegal sand mining leads to find an alternative for fine aggregate without compromising the strength. In this study, concrete mix M₃₀ has been designed using quarry dust and manufactured sand by replacing the river sand. Four mix proportions were made to test the effect of inclusion of quarry dust and manufactured sand in concrete and the results were compared with the control specimens. It was found that the strength of the concrete is enhanced in both the types of replacements.

Keywords

Manufactured Sand, River Sand, Quarry Dust, Cement Concrete.

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R. Thenmozhi ¹, S. Govindarajan ¹

Affiliations
1 Department of Computer Applications, SRM University, SRM Nagar, Potheri, Kattankulathur, Kancheepuram District, Near Potheri Railway Station, Chennai - 603203, Tamil Nadu, IN

Abstract

Objectives: To prevent accident and rear end collision in VANET, we propose to develop a method that will first create a cluster for preventing accident and rear collision in VANET Method/Statistical Analysis: Hence, to prevent accident and rear end collision in VANET, we propose to develop a scheme. First, with vehicles of same group moving in same road and direction, a cluster is formed. Among transmitted power and Contention Window (CW) size occasionally, every automobiles bounds an algorithm individually that’s adjusted. Findings: In urban areas, Traffic accidents occur because of sudden brakes, which demand a quick response from drivers. Therefore, a driver should be informed of the emergency events earlier. The proposed scheme applied each vehicle nodes in the network. Within the contention window metrics, the probability of collision between nearby vehicles is calculated and included which ensures the occurrence of appropriate modernize of transmission power and CW (Access Category) standards derived from the limited automobile density and the network circumstance correspondingly. The cluster with the header nodes maintain every unwanted or accident event and inform to every node to prevent accidents and rear end collision. This is significant to every sub cluster members of an SCH entity. An automobile can securely reject communication initiated from automobiles next to it. The recipient automobile can take; action derived from the primary and rejects the remaining replacement copies in case of redundancy.Applications/Improvements: The proposed scheme focused to enhance the delay, delivery ratio, energy and throughput compare to existing schemes.

Keywords

Cluster Formation, Cluster Head, Rear-End Collision, Vehicular Ad hoc Networks (VANETs).

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R. Thenmozhi , Yusuf H. , Vignesh K. , Dinesh J.

Abstract

The biggest problem regarding the increased use of private & public transport is the increasing number of accidents on the roads. To overcome this new technology emerged VANET. Vehicular adhoc networks(VANETs)are classified as an application of mobile adhoc network(MANET) that has the potential in improving road safety and in providing travelers comfort. Recently VANET shave emerged to turn the attention of researchers in the field of wireless and mobile communications; they differ from MANET by their architecture, challenges, characteristics and applications. In this paper we present aspects related to this field starting from VANET architecture and ending up with the most appropriate simulation tools to simulate VANET protocols and applications. [1]

Keywords

VANET, MANET, architecture, Applications, Protocols

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