Fluid-Structure Interaction with the Entropic Lattice Boltzmann Method

We propose a novel fluid-structure interaction (FSI) scheme using the entropic multi-relaxation time lattice Boltzmann (KBC) model for the fluid domain in combination with a nonlinear finite element solver for the structural part. We show validity of the proposed scheme for various challenging set-ups by comparison to literature data. Beyond validation, we extend the KBC model to multiphase flows and couple it with FEM solver. Robustness and viability of the entropic multi-relaxation time model for complex FSI applications is shown by simulations of droplet impact on elastic superhydrophobic surfaces

Food security in India: aquaculture an option

Food, shelter & clothes are the basic necessities of the life and among them food plays a pivotal role in the social of economic development of country. Each and every person is entitled to an equal right to access food. However there are people who are not getting even minimum requirement of food even for their life sustenance. In a developing country like India food security is a major social concern. Approximately 25 % of people in India are Below Poverty Line(BPL) are not able to afford food available in the market even though food is physically accessible. In the country we have people still not deprived of the pangs of hunger and malnutrition. Deficiency in required nutrients like proteins, vitamins, minerals may cause various type of ailments

E1−E2E1-E2 interference in the Coulomb dissociation of 8^8B

We investigate the effects arising out of the $E1 - E2$ interference in the Coulomb dissociation of $^8$B at beam energies below and around 50 MeV/nucleon. The theory has been formulated within a first order semiclassical scheme of Coulomb excitation, in which both the ground state and the continuum state wave functions of $^8$B enter as inputs. We find that the magnitude of the interference could be large in some cases. However, there are some specific observables which are free from the effects of the $E1 - E2$ interference, which is independent of the models used to describe the structure of $^8$B. This will be useful for the analysis of the breakup data in relation to the extraction of the astrophysical factor $S_{17}(0)$.Comment: Revised version to appear in Physical Review

Being a Women: Changing Paradigm

It is true that, if a man is getting educated and empowered, only he can be benefitted however, if a woman is getting educated and empowered, the whole family and society can be benefitted. “Behind every successful man there is a woman”. Not only in the case of a man, but this saying stands for the functioning of the whole world. She is said to be the ultimate strength and support behind the success of an individual. The basic unit of society is a woman. As woman makes a family, a family makes a home and homes make a society. So we should never think that a society would come into existence without the contribution of women. She plays roles as a mother, a sister, a daughter, a wife. They play their roles with great responsibilities in the upbringing of a healthy solid society, but she is in our so called modern world, still living in chains. We all know that without education, no development is possible. Here we have forgotten that the very first and best school of a child is its mother’s lap. A good healthy society doesn’t automatically emerge on its own and stands firm but it needs to be emerged and for its emergence women play a pivotal role. From behavioural to health education women have their hands on. It’s a woman who teaches how to behave, how to speak and how to deal with different classes of people. These all are the basic fundamentals of a good society and women are the main contributors in building up a strong society

Conflicts in Fisheries: Partnerships & Co-management Paradigms

The open access regime existing in the harvesting of marine fishery resources in our country warrants stronger emphasis on invoking technological innovations as well as management paradigms that reconcile livelihood issues with concerns on resource conservation. Innovations do not happen in a socio-political vacuum. It is the extent of partnership between the research and the client system that decides the fate of any technology in terms of its adoption or rejection. Rational utilization of common property resources for sustainable development without endangering the environment is possible through community participation. For more than 6 million fishers and fish farmers, fisheries are a source of livelihood in India. Fisheries sector has recorded faster growth as compared to the agricultural sector in all the decades and is contributing in a significant way to the economic growth of the nation. The vast Exclusive Economic Zone of 2.02 million sq. km of ocean under the possession of India is more than two third of its land area. Marine fishing has been considered as a primary livelihood option since time immemorial, for the occupants of the coastal belt in India. The marine fishery resources of the country include a coastline of 8129 km with numerous creeks and saline water areas, an Exclusive Economic Zone (EEZ) of 2.02 million km2 which are suitable for capture as well as culture fisheries. The annual harvestable mairne fishery resources in the Indian EEZ have been estimated at about 3.93 million tones constituting more than 50 per cent demersal, 43 per cent pelagic and 6 per cent oceanic groups. (Rao Syda, 2011) Moreover it supports the deprived coastal community with sufficient nutritional security which is otherwise unreachable for such segment. Currently the marine fisheries sector produces about 2.6 million tonnes (2003) of fish per annum. About 3 million people are employed in the primary, secondary and tertiary sector of marine fisheries which provides livelihood security to about 18 to 20 million people. (Sathiadhas, 2007

Bader’s theory of atoms in molecules (AIM) and its applications to chemical bonding

In this perspective article, the basic theory and applications of the "Quantum Theory of Atoms in Molecules" have been presented with examples from different categories of weak and hydrogen bonded molecular systems