Volume -2, Issue -3  Feb 2016

Optimization of machining parameters for EDM operations based on central composite design and desirability approach
Authors : Chittaranjan Das V,

In the present work, Electrical Discharge Machining (EDM)) was employed to machine EN-31 (AISI 52100) tool steel with copper electrode by adopting response surface methodology. To study the process performance of material removal rate( Volume of material removed per minute) and surface roughness (average roughness of machined surface Ra), variables such as Pulse on time, duty cycle, peak current...

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Social science in crisis: A technology development perspective
Authors : Rajesh Shankar Priya,

A successful industrial economy based on Technology products in a country like Germany is based on consistent methodologies, practices and a steady stream of innovative dialogues from different disciplines of science including humanities. This paper will highlight the importance of social science in the development of an industrialized concept and the sudden decline of social science in the...

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Fusarium solani - A bioadsorbent for the removal of nickel from nickel electroplating effluent
Authors : Poonkothai M,Shyamala Vijayavathi B,

Protection of environment is of huge alarm because the discharge of heavy metals as effluent from the metal finishing, electroplating and metal extraction process has amplified and they cause dangerous problems to human beings. Biosorption using microorganisms as bioadsorbent for the elimination of heavy metals appears to be a valuable remediation technology compared to physico-chemical methods....

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Preliminary investigations on gut microbes for developing gnotobiotic Zebrafish
Authors : Justin D Clifton,Vimal. P,Veena V.V,Rajapriya R,Pandian T.J,

In vertebrates, microbes colonize gut since birth but significantly alter host physiology, immunity and metabolism. Recently, zebrafish, Danio rerio has become an excellent model for gnotobiotic research for investigating metabolic disorders. Zebrafish offers the possibility to raise germ free or gnotobiotic larvae for better understanding the influence of gut microbiome on host physiology,...

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Biomagnifications of potentially toxic heavy metals (Pb and Ni) and their impact on Vigna radiata (L.)
Authors : Rathika Rajiniganth,Srinivasan, P,Sudhakar, C,Selvankumar, T,

Naturally plants are exposed with many adverse environmental conditions like biotic and abiotic stress. Despite all other stresses, heavy metal stress is one of great importance which has a notable adverse effect on crop productivity and growth. Agricultural crops also have the ability to uptake the heavy metals through their roots and transport them to the edible portions of the plant that are...

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Heterologous induction of allo-tetraploidy and early embryonic development in Buenos Aires Tetra, Hyphessobrycon Anisitsi (Eigenmann, 1902)
Authors : Justin David C,

Selective breeding, hybridization, triploidy and tetraploidy by heterospecific insemination are genetic methods for generating male or female population capable of producing diploid (2n) or triploid (3n) gametes. The generated allotetraploids (4n) will thus serve as gamete providers for generating auto and allo-triploids, tetraploids and androgenetic clones. In the present study, we generated an...

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Induction and survival of androgenetic clones of Gymnocorymbus ternetzi (Boulenger, 1895) generated using cryopreserved sperm
Authors : Justin D C,

Androgenetic clones were generated by fertilizing genome inactivated eggs with fresh or cryopreserved sperm of Gymnocorymbus ternetzi (Boulenger, 1895) followed by thermal shocking of embryos to arrest Ist mitotic division for diploidization. Androgenesis may be useful for resurrecting an extinct species when only males are available using genome inactivated eggs of heterologous species. In the...

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Oxidised polyacrylonitrile fibre as a flame retardant material
Authors : Usha Sayed,,Harshit Jain, ,Sairohit Raghupathy,

Flame retardant materials are materials that inhibit combustion thereby preventing the spread of fire. They are extensively used in fire fighting equipment, apparels worn by armed forces,security personnel and in places where there is a huge risk of explosions. Limiting oxygen index (LOI) of a material is the measure of its flame retardancy. Oxidised PAN fibre with a LOI between 45 and 55 acts as...

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