A. Alagu Sundarapandian ¹, S. Palani ¹, R. Paul Lingaprakash ¹, M. Selvam ¹, V. Parthasarathy ²

Affiliations
1 Department of Mechanical Engineering, Vel Tech Multi Tech Engineering College, Avadi, Chennai – 600062, Tamil Nadu, IN
2 Department of Computer Science and Engineering, Vel Tech Multitech, Avadi, Chennai – 600062, Tamil Nadu, IN

Abstract

Background/Objectives: Gear measurement is an important as well as critical step and it is done in bench centers by using instruments which have a gear with mandrel. However, this method is found to be time consuming. In addition it is very difficult to execute this process without additional man power. Methods/Statistical Analysis: In the existing method of measurement using bench centers includes a surface table which contains head, dead center. In this proposed measuring machine we introduced a digital dial indicator arrangement to measure whole depth of the gears. Findings: It reduces the measuring time as well as man power required. In this proposed research work, an attempt has been made to reduce the time taken in measuring the whole depth, face out and run out in gears from 10 minutes to 7 minutes that is 30% reduction. Application/Improvements: Thus proposed method would be well matches for modern gear manufacturing industries to obtain micron level measurement in terms of time as well as man power consumption.

Keywords

Designing, Gear, Metrology, Precision Measurement

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G. Saravana Kumar ¹, V. Parthasarathy ², E. Praveen Kumar ¹, S. Thiyagarajan ¹, S. Siva Saravana Babu ¹, S. Sudhakar ¹

Affiliations
1 Department of ECE, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, Tamil Nadu, IN
2 Department of CSE, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, Tamil Nadu, IN

Abstract

Background/Objectives: Among a gamut of evolving domains in medicine exchange of medicinal data and images amid multiple entities constitutes a pivotal aspect for telemedicine. An effective bandwidth allocation and management scheme is essential to accomplish the telemedicine communication requirements. This necessitates the requisite to develop and implement a compression and encryption scheme for medical images. Methods: This paper recapitulates the diverse transformation techniques employed in compression and identifies the constraints associated with the techniques. This paper summarizes the comparison of encryption methods such as Rivest Cipher 4(RC4), Rivest Cipher 2(RC2) and Data Encryption Standard (DES) in terms of time consumed to complete encryption and decryption operations. Findings: This paper considers Peak Signal-to-Noise Ratio (PSNR) and Compression Ratio (CR) as performance measures and establishes the proposed algorithms's effectiveness over Set Partitioning Hierarchical Trees (SPIHT). Application: This algorithm can be utilized for medical image compression, transfer and archiving operations.

Keywords

Compression Ratio (CR), Data Encryption Standard (DES), Peak Signal-to-Noise Ratio (PSNR), Rivest Cipher 4(RC4), Rivest Cipher (RC2), Set Partitioning Hierarchical Trees (SPIHT)

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G. Saravana Kumar ¹, V. Parthasarathy ², E. Praveen Kumar ¹, S. Thiyagarajan ¹, S. Siva Saravana Babu ¹, S. Sudhakar ¹

Affiliations
1 Department of ECE, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 Department of CSE, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN

Abstract

Background/Objectives: In multimedia data communication environment a trade-off shall be opted between power, spectrum needs and wireless channel capacity in Global System for Mobile, Long Term Evaluation, and Wireless Local Area Networks applications. Multi-Input Multi-Output antenna elements display a high degree of similarity and it leads to efficacy reduction in multi user milieu. Methods: This paper investigates and presents a condensed 2-port coax fed multiband MIMO antenna for 4G applications. The proposed MIMO antenna possesses dimensions of 45mm×50mm×0.4mm³ and comprises two layers, a rectangular patch, a pair of small-N shaped strips, two G-shaped monopole structures and L-shaped slots. An array of three resonant frequencies is opted for exciting the proposed design with the values of 1.8GHz, 2.5GHz and 5GHz. The methodology exhibits an adaptable frequency selecting with the ability to neutralize the impact of the other frequency. Findings: The implemented design accomplishes a high efficiency rates for LTE-Advanced, WiMAX and Wi-Fi applications 71.80%, 72.28% and 85.74%. Applications/Improvements: Fabrication with a suitable FR4 substrate material is used in the design of the coax fed multiband MIMO antenna. For future enhancements, the radiation pattern and reflection coefficient of an antenna shall be assessed.

Keywords

Global System for Mobile, Multi-Input Multi-Output Antenna, Long Term Evaluation, Wireless Local Area Networks

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