Informatics Publishing Limited

K. Kalaiselvan ¹, K. P. Naachimuthu ²

Affiliations
1 Lanco Infratech Ltd (EPC division), Vijayawada, Andhra Pradesh, IN
2 PSG Institute of Management, Coimbatore, Tamil Nadu, IN

Abstract

Relationship(s) are purely a choice, except those blood relations that are by chance. There are different people that we meet in our life and get acquainted to, attracted to, attached to and sometimes aversive too. Sociometry is the study of human connectedness. Sociometry is based on the fact that people make choices in interpersonal relationships. Whenever people gather, they make choices - where to sit or stand; choices about who is perceived as friendly and who not, who is central to the group, who is rejected, who is isolated. As Moreno (1953) says, “Choices are fundamental facts in all ongoing human relations, choices of people and choices of things. It is immaterial whether the motivations are known to the chooser or not; it is immaterial whether [the choices] are inarticulate or highly expressive, whether rational or irrational. They do not require any specialjustification as long as they are spontaneous and true to the self of the chooser. Each and every relationship is hence different and knowing them they are different and handling these differences is a greatest challenge in life. If we understand that each one is different to us, it has to be clearly manifested in the way we treat them, greet them or relate with them. In a relationship (especially intimate ones) we fail most of the time to make our loved ones feel that they are loved and they are special. Failing to do this either would end up in others having a set of expectations from us, which we may not or do not want to fulfill and/or we would end up in not differentiating our near and dear ones from a mere acquaintances or associates. When we can handle different relationships, we will be able to handle differences in relationship(s), since we know the importance or level of intimacy of that relationship(s) to us The concept of 'personal space' in social psychology talks more about placing different people at different physical distances. This paper attempts to build a model (based on several social psychology theories) on human relationships by classifying different relationships, based on the importance, intimacy and emotional connect/bonding with which we see that relationship(s).

Keywords

Relationships, Social Psychological Approach.

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K. Kalaiselvan ¹, S. Senthilkumar ²

Affiliations
1 Department of Electronics and Communication Engineering, Dr. Navalar Nedunchezhiyan College of Engineering, Tholudur-606303, IN
2 Department of Electrical Engineering, Government College of Engineering, Salem-621011, IN

Abstract

This paper deals a high-performance torque and flux control strategy for high-power induction motor drives. This method implemented with higher order of 81 levels. Due to the high output quality of the inverter, the torque response presents nearly no ripple. In addition, switching losses are greatly reduced since 80% of the power is delivered by the high-power cell of the asymmetric inverter, which commutates at fundamental frequency. The simulation of this paper can be carried out by using Simulink of the MATLAB software. In this paper the multilevel inverter which produces the higher level sinusoidal output waveform with zero percentage distortion. Also there is no need of any filter needed for filtering the output waveform.

Keywords

Induction Motor, Multilevel Inverters, Switching Losses.

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K. V. Sriharsha ¹, R. Abishek Arun ¹, C. Ramanathan ¹, R. Abirami ¹, S. Hamsavaahini ¹, J. N. Saranya ¹, R. Subhathira ¹, K. Kalaiselvan ¹, N. R. Raajan ¹

Affiliations
1 Department of Electronics and Communication Engineering, School of Electrical and Electronics Engineering, SASTRA University, Thanjavur - 613401, Tamil Nadu, IN

Abstract

Objectives: Emerging trends in non-linearity has resulted in “Strange Attractors” which is highly chaotic in nature. In this paper the strange attractor – chaotic signal is being applied on the Orthogonal Frequency Divisional Multiplexing (OFDM) system and its performance is measured. Methods/Statistical Analysis: The work is divided into two parts– generation of the strange attractor, application of the attractor on the OFDM System. After generating strange attractor from Rayleigh-Bernard System, it is utilized by OFDM with different modulation techniques such as 16-QAM, 64-QAM and QPSK. A chaotic signal in OFDM transmission is seems to be rare combination for secured communication and that gains the novelty in this paper by applying strange attractors to OFDM technique. Findings: Performance of the Rayleigh Bernard Attractor with OFDM system has been estimated with BER vs Eb/N0 plot and its security has been verified by calculating password decoding time. Application/Improvements: Rayleigh Bernard Attractor for OFDM system helps in the secured transmission and reception of the signal.

Keywords

Attractors, BER, Chaos, OFDM.

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