Informatics Publishing Limited

S. Meenakshi ¹, Amiya Kumar Rath ², Seemita Mohanty ¹

Affiliations
1 Department of Humanities & Social Sciences, National Institute of Technology Rourkela, Odisha, IN
2 Department of Computer Science & Engineering VSSUT, Burla, Odisha, IN

Abstract

Engineering education today has seen enormous growth and development in terms of the quality of education and the deliverables. The profession is experiencing major changes in knowledge, equipment, systems and management in order to achieve higher standards in a competitive world. Consequently, engineering firms continuously need engineers with strong technical knowledge, in addition to being well-equipped with employability skills. In order to face new challenges, new opportunities and ever challenging circumstances, new engineers have to continually adapt and upgrade necessary skills such as self-learning, problem solving and other personal skills that can be applied in different situations. Apart from the technical knowhow's and show-how's, they also need the requisite interpersonal skills to thrive in the field in the long term. In this paper, we review the package of skill set anticipated from an engineering graduate from the employer's perception, and reveal the existing competency gaps for successful execution of engineering services.

Keywords

Engineering, Employability, Competencies, Skill, Generic Attributes, Graduate Attributes.

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S. Meenakshi ¹

Affiliations
1 Department of Electrical and Electronics Engineering, Sri Venkateshwara College of Engineering, Sriperumbudur-602105, IN

Abstract

This paper presents an interfacing circuit which acts as a bidirectional dc dc converter between battery or ultra capacitor and DC bus with zero voltage transition (ZVT) auxiliary circuit in electric vehicle (EV), fuel cell electric vehicle (FCEV) and hybrid electric vehicle (HEV). The auxiliary circuit provides soft switching to the switching element and the circuit uses a simple PWM control. So, the energy conversion through the converter is highly efficient. The converter operates in ZVT Buck to charge ultracapacitor or battery and in ZVT Boost to discharge ultracapacitor or battery. The performance of the proposed converter was simulated using PSPICE software. The dynamic response of the converter with respect to abrupt load changes and operating mode change is shown through PSim simulation result. The results confirm aforementioned advantages and features of the proposed converter.

Keywords

Battery, DC-DC Converter, Soft Switching, Coupled Inductor, HEV, Ultracapacitor (UC).

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S. Meenakshi ¹, K. Nivetha ¹, P. Venkata Thilak ¹

Affiliations
1 Department of CSE, Prathyusha Institute of Technology and Management, IN

Abstract

In the current internet community, secure data transfer is limited due to its attack made on data communication. So more robust methods are chosen so that they ensure secured data transfer. One of the solutions which came to the rescue is the audio Steganography. But existing audio steganographic systems have poor interface, very low level implementation, difficult to understand and valid only for certain audio formats with restricted message size. Here have chosen sound steganography, where we aim to create a code that could encode a picture into sound and then read it on a frequency spectrogram. We reach our goal and we created a main code that has also an encoding part divided in amplitude computation and wave’s computation, and a frequency spectrum code.

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Mary Subaja Christo ¹, S. Meenakshi ²

Affiliations
1 Sathyabama University, Chennai - 600119, Tamil Nadu, IN
2 IT Department, SRR Engineering College, Chennai - 603103, Tamil Nadu, IN

Abstract

Objectives: Due to the distributed network topology of peer-to-peer network, there are high possibilities for the malicious node, thereby making security a very important criterion in managing the network performance. Methods: Security in the network is ensured by validation using Rumor Recovery (RR) protocol. Trust table verification method guarentees the validity of initiator node and sower node validity. In this method, the initiator node sends its query message to the responder node according to the rumor generation and recovery phase and query issuance phase of the RR protocol. Responder node validation process is used for saving responding nodes from attacks. Findings: In this paper, we mainly concentrate on the detection and elimination of initiator node attack, replay attack, and sower attack. The performance metrics considered for evalution are delay, delivery ratio and throughput. Simulation results show that the proposed Trusted Rumor Riding (TRR) protocol. 1. Out performs RR protocol by 34% in terms of delay, 1% in terms of delivery ratio and 17% in terms of throughput while detecting and eliminating the initiator attack; 2. Out performs RR by 98% in terms of delay, 41% in terms of delivery ratio and 19% in terms of throughput while detecting and eliminating the replay attack; and 3. Out performs RR by 95% in terms of delay, 9% in terms of delivery ratio and 36% in terms of throughput while detecting and eliminating the sower attack. Most of the existing works did not consider these three attacks; only few works considered it, but those were failed to meet the quality of service requirements. The detected attacks are avoided in a effective manner to provide the secure communication. Applications/Improvement: From the results, it is concluded that the proposed TRR protocol can detect several attack while satisfying the quality of service needs.

Keywords

Malicious Node, Peer-To-Peer Network, Rumor Riding, Security, Trust Node, Validation.

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S. Meenakshi , R. M. Suresh

Abstract

 With the rising trend in Information Technology, Web Information Retrieval is picking up its vitality step by step. As have experience in making use of well-known search engines consistently, the Search Engine Results Page (SERP) returned is truly excessively large and nearly irrelevant. Need to continuously pass on to the “next page” to acquire the web pages which the users really need. The reason is that, when the user wants to search information in the Web, the search engine abstracts the information to the keyword combination and afterward submits it. The relationship between keywords is clear to the users but not to the search engines. The Semantic Web is an evolution of the current Web that represents information in a machine-readable format, while maintaining the human-friendly mark up language representation and thereby avoiding key word searching. This research work propose a Web Service Architecture to cater the need of distributed environment whereby the link content and page content of the SERP are checked for the given user query keywords, so that the more relevant pages are retrieved and then discusses key techniques about extracting domain concepts, interrelationships between concepts-keywords and automatically constructing classification system in ontology learning using semantic technologies such as annotation, RDF and SPARQL queries. 

Keywords

Semantic web search, domain concept ontology, semantic annotation, relation keyword

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S. Meenakshi

Abstract

PEFR determination for assessment of ventilatory function in chronic air flow limitation has been widely practiced since 1959 because of its easy measurement, accuracy and reproducibility (Makerrow1958), In the present study PEFR readings in patients with acute severe asthma were determined to evaluate the rate of recovery from episodic attack.
Two groups of patients were identified with PEFR measurement. One group of patients with quick and complete recovery from asthmatic episode, described as "ACCELERATED RESPONDERS" and in the other group the recovery was slow and incomplete and were referred to as "SLOW RESPONDERS"
In spite of availability of powerful drugs for management, the factors affecting the natural history of attack and the response to treatment are still poorly understood. Recording of PEFR three to four times a day in patients with acute attack of asthma help us to predict confidently which patients will recover rapidly and which will not, and whose recovery will be slow and incomplete. The value of recording PEFR using the very handy robust instrument yielding valuable, and reliable informations for treatment and evaluation are discussed here.

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S. Meenakshi ¹, Seemita Mohanty ¹

Affiliations
1 Department of Humanities and Social Sciences, National Institute of Technology, Rourkela, Odisha, IN

Abstract

The objective of the present study is twofold. First is to explore engineering students' perceptions on the importance of generic attributes required to become a successful engineer, and, second is to assess the extent to which the students possess these generic attributes. To achieve the objectives a cross-sectional study was conducted among final year engineering students pursing various engineering programmes under a state technical university in Odisha,India,during the academic session of spring 2016. Making use of the survey method, data were collected from the respondents with the help of a questionnaire. The results indicate that there is a serious mismatch between the students' perception on the importance of the generic attributes,and the attributes possessed by them. In addition, the findings reveal that students possess very less knowledge on discipline-specific technology and tools. The social and business contexts of practicing engineering is also not much known to them, in addition to possessing inadequate problem-solving and leadership skills. Further, they are not able to manage the stress in their lives even though they are very well aware of its importance in a person's general well-being.

Keywords

Generic Attributes, Engineering Students, Engineering Education, Knowledge, Skills, Academia.

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S. Gayathri ¹, S. Meenakshi ¹, A. Prema Kirubakaran ¹

Affiliations
1 Department of Computer Science, Annai Violet Arts and Science College, Ambattur, Chennai - 600053, Tamil Nadu, IN

Abstract

Objective: The proposed topic is implemented for the development of an automatic computerized solar radiation tracker and using power in home appliances. Other resource of energy are short term, thus solar energy is an emerging new source fuel, that can be applied to any source and it is been widely used. Methods: The aim of this research work is to monitor feasible approachto maximize the efficiency of solar array systems. Proposed in this report is a system that controls the movement of a solar array so that it is constantly aligned towards the direction of the sun and that there is a constant power supply without any hindrance. This is achieved by applying the measurements using Mathematical Morphological Operators. Existing tracking systems focus on directing the sun rays towards the solar panel and it lands up in manual operation. To overcome this problem a computerized system is proposed to enhance the proposed model to have a vital role in tracking the solar system used to get the energy. To find the region or the path in the solar panel morphological operator is applied to have a calculated process. Thus this proposed system helps to locate and redirect the deviated and lost energy rays. Findings: Solar Energy is a vital resource nowadays to operate any kind of appliances. In countries like India solar energy is a big boon as the summer is long and this paves for more solar power. In this abstract development of an automatic computerized solar radiation tracker and using power in home appliances is discussed. Other resource of energy are short term, thus solar energy is an emerging new source fuel, that can be applied to any source and it is been widely used. Solar panels or modules are devices that convert sunlight into electricity and offer a practical solution to the problem of power generation in remote areas. The Proposed Computerized solar tracker designed and constructed offers a reliable and affordable method of aligning a solar module with the sun in order to maximize its energy output. Automatic Sun Tracking System is a combination of both hardware and software (hybrid) hardware prototype, which automatically provides best alignment of solar panels according to the sunrays position, to get maximum output. Application: Thus this system can be implemented to enhance the working technology of the methods available for a better usage of the solar power.

Keywords

Measurements, Morphological Operator, Solar Panels, Stepper Motor, Tracker

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C. J. Maxson ¹, S. Meenakshi ², Ponnammal Natarajan ²

Affiliations
1 Department of Mathematics, Texas A&M University, College Station, Texas 77843, US
2 Department of Mathematics, Anna University, Madras, IN

Abstract

Let a finite state automaton M₁ cover another finite state automaton M₂ with a linear covering map η. If M₁ and M₂ are strongly connected then End M₂ is a homomorphic image of End M_1. When M₁ and M₂ are not strongly connected, additional conditions on the covering map are needed to ensure that End M₂ is a homomorphic image of End M₁

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