Yearender 2020

Policy Brief

Plastic Waste Management: Turning Challenges into Opportunities

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Article

Climate Action: What's Next for India?

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Publications

Rice straw incorporation affects global warming potential differently in early vs. late cropping seasons in Southeastern China

Research Paper
| January 11, 2018

Paddy fields are a major global anthropogenic source of methane (CH4) and nitrous oxide (N2O), which are very potent greenhouse gases. China has the second largest area under rice cultivation, so developing valid and reliable methods for reducing emissions of greenhouse gases while sustaining crop productivity in paddy fields is of paramount importance.

Mass Balance Reconstruction since 1963 and Mass Balance Model for East Rathong Galcier, Eastern Himalaya, using remote sensing methods

Research Paper
| January 11, 2018

In this study mass balance, accumulation, ablation, runoff and temperature lapse rate for the East Rathong glacier are estimated for the time period 1963–2011 using remote sensing methods and climate data. A mass balance model is proposed for the glacier that computes mass balance as difference of volumes of consecutive years. Volume estimates of glacier are based on application of volume–area scaling law to glacier area computed from satellite images. It is observed that the glacier is summer-accumulation type. Time series analysis is applied to the annual mass balance series.

Mechanical, thermal and bio-compatibility studies of PAEK-hydroxyapatite nanocomposites

Research Paper
| January 11, 2018

In this study high performance bone analogue has been developed using poly(aryl ether) ketone, poly(dimethyl siloxane) and reinforced with nanohydroxyapatite as biocompatible filler. Compressive, tensile and flexural properties have shown sustained improvement up to 7% of nanohydroxyapatite loading. The mechanical properties were further analyzed using micromechanical theories for good interfacial adhesion between matrix and filler. The composites are cytocompatible and revealed multiple layers of apatite formation in simulated body fluid.

Methodology to nanoencapsulate hepatoprotective components from Picrorhiza kurroa as food supplement.

Research Paper
| January 11, 2018

Picrorhiza kurroa root and rhizome powder of extract is well-recognized neutraceutical for healthy liver functioning. The major hepatoprotective components (picrosides I and II) of P. kurroa extract shows poor intestinal absorption and poor bioavailability due to sparingly aqueous solubility. To improve bioavailability of these biomolecules, a nanoformulation of this extract has been developed with pluronic-F-68 copolymer based biodegradable PLA nanoparticles by nanoprecipitation method.

Motivations for implementing environmental management practices in Indian industries

Research Paper
| January 11, 2018

The motivations to implement environmental management system (EMS) practices in Indian industries are explored empirically. The study presents a survey of 104 industries from different sectors to identify the main motivational factors and firms' characteristics that determine the adoption of EMS practices by firms. The empirical evidence suggested that the comprehensiveness of the adopted EMS practices is positively influenced by relational motivations as firms consider their image, compliance and prevention of environmental incidents as significant drivers to implement EMS practices.

Nitric oxide metabolism and indole acetic acid biosynthesis cross-talk in Azospirillum brasilense SM

Research Paper
| January 11, 2018

Production of nitric oxide (NO) and the presence of NO metabolism genes, nitrous oxide reductase (nosZ ), nitrous oxide reductase regulator (nosR) and nitric oxide reductase (norB) were identified in the plant-associated bacterium (PAB) Azospirillum brasilense SM. NO presence was confirmed in all overexpressing strains, while improvement in the plant growth response of these strains was mediated by increased NO and indole-3-acetic acid (IAA) levels in the strains. Electron microscopy showed random distribution to biofilm, with surface colonization of pleiomorphic Azospirilla.

OASYS South Asia Project Brightens Up Remote Areas

Research Paper
| January 11, 2018

‘Off-grid Access Systems for South Asia’ (OASYS South Asia) project, aimed to do a systematic analysis to develop an off-grid delivery model framework and implement the framework through demonstration projects across different geographies in order to find appropriate local solutions for sustainable rural electricity supply.

Production of a non-cytotoxic bioflocculant by a bacterium utilizing petroleum hydrocarbon source and its application in heavy metal removal

Research Paper
| January 11, 2018

A bacterium isolated from the activated sludge of an oil refinery of Assam, India retained efficient bioflocculating activity through production of bioflocculant when it was grown on crude oil amended media avoided of any other carbon source.The bioflocculating activity gained from the optimized media broth was 86.2%, which could be enhanced up to 89.1% with the purified bioflocculant. In course of bioflocculant production, the bacterium utilized about 77% of the petroleum hydrocarbons after incubation for 168 h when the activity was found to be the highest.

Regulating Off-grid Electricity Delivery: Exploring the Grey Areas

Research Paper
| January 11, 2018

Given the increasingly prominent role and scope for off-grid solutions in complementing grid-based electrification in India, especially to electrify habitations where grid electricity is yet to reach, it would be crucial to set up appropriate regulatory arrangements for the scaling up of off-grid interventions in India. In view of this, the paper attempts to analyse the role of possible regulation in the off-grid electrification sector and explores the type of regulatory incentive structures that could be put in place in order to allow the off-grid sector to do well.

Remote sensing of mountain snow using active microwave sensors: a review

Research Paper
| January 11, 2018

This work provides an overview of various methods for estimating snow cover and properties in high mountains using remote sensing techniques involving microwaves. Satellite-based remote sensing with its characteristics such as synoptic view, repetitive coverage and uniformity over large areas has great potential for identifying the temporal snow cover. Many sensors have been used in the past with various algorithms and accuracies for this purpose.