Bøker av Bibekananda Nayak

Happiness, sorrow, discomfort and calmness; what all these are...?"Feelings..." And whenever there is such a feeling in the heart, it automatically becomes a beautiful song. Be with, like a true companion throughout life. Helps; ever in searching for a new life or ever in gathering the lost moments of the past life... No matter how late, how much time goes out, but one day..., everything gets back... everything...A heart touching love story by Bibekananda Nayak which shows you the real entity of our leaving... Life is not to live alone... It's always dedicated to someone. That person without whom we can't be complete in this birth...

When there is some pain or some most precious happiness of life in our heart; when there is some restlessness or some comfort that has gotten after a hard work; No matter whatever it is...; joy or misery, comfort or restlessness, that song made from the heart gives them a new destination… gives life a new twist…This happiness, this sorrow, this discomfort and this calmness; what all these are...?"Feelings…" And whenever there is such a feeling in the heart, it automatically becomes a beautiful song. Be with, like a true companion throughout life. Helps; ever in searching for a new life or ever in gathering the lost moments of the past life…A heart touching love story by Bibekananda Nayak which shows you the real entity of our leaving... Life is not to live alone... It's always dedicated to someone. That person without whom we can't be complete in this birth...

In this book, an attempt has been made to present a brief study on Primordial Black Holes by assuming that gravity is described by the most attractive alternative of General Theory of Relativity and simplest type of Scalar-Tensor theory called Brans-Dicke theory. Chapter-1 contains a brief introduction to Brans-Dicke theory and some of it's cosmological applications. Chapter-2 describes the evolution of smallest type of black holes called Primordial Black Holes (PBHs). Main focus of this chapter is on the accretion of radiation by PBHs and it's impact on their evolution. Working in the setting of Brans-Dicke theory, Chapter-3 deals with a detail study on how the accretion of radiation by PBHs affects the constraints on initial mass fraction of PBHs arising from different observed astrophysical processes through their evolution. In Chapter-2 and 3, our discussion carried out by considering a stationary flow of radiation onto the PBHs. However, the real situation is much more complicated one involving non-stationary processes. So we study the non-stationary evolution of PBHs in Chapter-4 and Chapter-5. Finally, the conclusions of our study is given in Chapter-6.