Personality of a Friend in Sangam Literature

In India, families face various social problems because of love. It is a manifestation of extreme ignorance that both men and women get used to postponing marriage and rejecting marriage, not only causing mental distress but also losing their lives. In this era, it is very difficult to carry one's love life to marriage life. So every lover can approach psychologists nowadays to resolve the differences in their love marriage. But if we analyze the sangam literary songs thoroughly, the friend is the medicine that can solve the psychological problem between lovers. Friend is a female character who stands between the hero and the heroine and gives the necessary advice. How does her personality fit into the contemporary era? This article explores all this in detail

Oscillation Criteria For Even Order Nonlinear Neutral Differential Equations With Mixed Arguments

This paper deals with the oscillation criteria for nth order nonlinear neutral  mixed type dierential equations

Methyl 4,6-bis­(4-fluoro­phen­yl)-2-oxo­cyclo­hex-3-ene-1-carboxyl­ate

The 3-cyclo­hexene units adopt envelope conformations in each of the two independent mol­ecules that comprise the asymmetric unit of the title compound, C20H16F2O3. The dihedral angles between the two fluoro­phenyl rings are 79.7 (2) and 73.7 (2)° in the two mol­ecules. In one of the mol­ecules, two C—H groups of the cyclo­hexene ring are disordered over two sets of sites in a 0.818 (13):0.182 (13) ratio, the major and minor components corresponding to the two enanti­omeric forms of the mol­ecule. Weak inter­molecular C—H⋯O inter­actions help to stabilize the crystal structure

Quality Metrics and Reliability Analysis of Laser Communication System

Beam wandering is the main cause for major power loss in laser communication. To analyse this prerequisite at our environment, a 155 Mbps data transmission experimental setup is built with necessary optoelectronic components for the link range of 0.5 km at an altitude of 15.25 m. A neuro-controller is developed inside the FPGA and used to stabilise the received beam at the centre of detector plane. The Q-factor and bit error rate variation profiles are calculated using the signal statistics obtained from the eye-diagram. The performance improvements on the laser communication system due to the incorporation of beam wandering mitigation control are investigated and discussed in terms of various communication quality assessment key parameters.