PREFACE Preface I am sharing thoughts with you in this blog. . If something echoes back, I feel most lucky; . if it is to some extent understood… more than satisfied; . if it drains down into the ground, I have nothing to regret. . I am an Engineer Here are my working skills ……Working fulfills a person I endeaver to be a Scientist Here are my research activities and projects ……Seeking orients a person I am and only am a human A human being is always curious and he experiences ……Feeling completes a person