Government of India

About: Government of India is a government organization based out in New Delhi, India. It is known for research contribution in the topics: Population & Government. The organization has 2945 authors who have published 2999 publications receiving 44942 citations. The organization is also known as: Union Government & Central Government.

Confinement of nano CdS in designated glass: a novel functionality of quantum dot–glass nanosystems in solar hydrogen production

Abstract: The present work is the investigation of our novel approach to designing quantum dot–glass nanosystems by confining nano CdS in designated glass and the first employment of such a quantum dot system in solar hydrogen production. The CdS quantum dots were grown in a special glass matrix, which involved a sequence of steps. The obtained glass was of uniformly bright yellow in color and the bulk glass was pulverized to a fine powder of micron size particles. The glass powder was characterized structurally and morphologically. X-Ray diffraction and electron diffraction patterns reveal a hexagonal crystallite system for the CdS quantum dots. Field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray fluorescence spectroscopy and chemical leaching with HCl studies demonstrate that the 2.5 nm size CdS quantum dots distribute homogeneously in a monodispersed form in the glass domain and on the surface with a “partially embedded exposure” configuration. This disposition imparts an excellent photostability against photocorrosion and also a facile catalytic function. Therefore, even a very small amount of CdS quantum dots (0.005 g per gram of glass powder) is able to photodecompose H2S under visible light (λ ≥ 420 nm) both in alkaline and pure aqueous media and produce solar hydrogen with markedly high quantum yields of 17.5 and 11.4%, respectively at 470 nm. Salient features like reusability after simple washing, corrosionless-stability and remarkable catalytic activity of this quantum dot–glass nanosystem are brought forth by our novel catalyst design and are much acclaimed in large scale solar H2 production.

Smart Cities: A Global Perspective:

Abstract: The impact of globalisation and industrialisation has been a subject for research around the globe due to the huge paradigm shift caused by them. Such phenomena are also a cause of concern as citie...

Economic Reforms and Exchange Rate Pass-Through to Domestic Prices in India

Abstract: This paper examines the behaviour of exchange rate pass-through to domestic prices in India during the post-economic reforms initiated since the major devaluation of July 1991 It observes that there is no clear-cut evidence of a fall in exchange rate pass-through to domestic prices Further, there is asymmetry in pass-through between appreciation and depreciation, and between sizes of the exchange rate change Based on the empirical evidence provided in the literature, the paper conjectures that reductions in import tariffs, the removal of trade restrictions, the increased import penetration ratio and openness of the economy and the change in the composition of imports following the economic liberalisation could have transitorily negated the impact of lower inflation on pass-through Part of the non-decline in long-run pass-through is due to a rise in inflation persistence This could follow from the dismantling of price controls in an environment of periodic spurts in inflation around a non-declining inflationary trend, combined with a rise in the government deficit, which has a nexus with inflation in India

Rutile filled PTFE composites for flexible microwave substrate applications

Abstract: Rutile filled PTFE composite substrates were fabricated for microwave circuit applications. Morphology of the composites and dispersion of filler in the polymer matrix were studied using Scanning Electron Microscopic technique. Microwave dielectric properties of filled composites were measured by waveguide cavity perturbation technique using Vector Network Analyzer. Different theoretical modeling approaches were used to predict the dielectric constant of PTFE composites with respect to filler loading. The temperature coefficient of dielectric constant ( τ e ′ r ) was measured in the 0–100 °C temperature range. Moisture absorption properties were measured as per IPC-TM-650 2.6.2 standards. Universal testing machine was used to evaluate the tensile properties. Flexible laminates having dielectric constant 10.2 with loss tangent 0.0022 was realized in the PTFE/rutile composites at X-band frequency region.