India’s performance in the field of maternal and child health has been poorer than expected irrespective of the tremendous economic growth the nation has seen. The latest National Family Health Survey - 4 (NFHS-4) data shows that 34.4 % children under the age of 5 are stunted in the state of Maharashtra. This is more particularly so in regions with high tribal population.

Quality and the quantum of energy consumption is a barometer of the progress of any society, today. Household energy consumption is an important subset of this and within it the household electricity consumption. The nature of this consumption can be studied at four distinct levels; access, availability, adequacy and quality. Is the electricity accessible in the first place? If accessible, is the electricity available for consumption when needed and is it adequate for the purpose at hand?

In India, marginal farmers account for more than 75 % of the total farming population operating about 30 % of the total agriculture area operated and their number is growing. Ironically, while large farmers have capitalised on cheaper sources like canal marginal farmers are mostly saddled with oversized diesel / electrical pumps along with conventional irrigation methods (flood / furrow). Access to affordable and efficient irrigation is vital to reduce input cost in cultivation, enhance their productivity, and net income from farming.

We all enjoy a healthy, tasty and refreshing glass of pomegranate juice. Some of us prefer the juice over eating the arils as we may not like biting into the tasteless seeds. But do you know that the seeds are a source of a very healthy oil?  In a study, Prof. Amit Arora and his team from the Indian Institute of Technology Bombay have proposed a new cost-effective, zero-waste method of extracting oil from pomegranate seeds, which also yields high-quality protein and dietary fibres.

It is well documented that there is a dearth of affordable housing units in urban India. The real estate prices in cities like Mumbai and Kolkata have soared, forcing the middle-class to move to adjacent areas, in search of houses they can pay for. There is a growing consensus that development of ‘new towns’ like Navi Mumbai, adjacent to Mumbai, and Rajarhat near Kolkata can not only relieve parent city of infrastructure pressure but also address the housing crisis.  But, how effective are these new towns in solving the problem of affordable housing?

Urban-rural transition zones are a breeding ground for unexpected changes in resources and livelihood, shows study from IIT Bombay

Increasing demand for space in cities are forcing people to move to surrounding rural regions, which are more affordable. These areas, called peri-urban regions, have a mix of rural and urban elements. In a study, researchers from the Indian Institute of Technology Bombay (IIT Bombay) have observed that the natural resources were stressed and livelihoods changed to non-agricultural means in the  peri-urban regions around Mumbai.  

Floods in Mumbai due to heavy rains on 26th July 2005 took a toll of more than 400 lives and resulted in economic loss of over Rs. 5000 crore. The events of that day highlighted the importance of designing constructions for floods. A flood model that can predict the amount of flooding in a region could be of great utility in minimising the damages.

IIT Bombay study proposal to account for ecological sensitivity to help developmental and  planning authorities.

IIT Bombay researchers study the effects of poor ventilation on occupants of low-income households

Lithium-ion battery (LIB) has been extensively used in all the portable electronic and automobiles (electrical/hybrid electrical vehicles) industry due to its capability to store and release electrochemical energy efficaciously. However, the accessible lithium resources are limited and are not well distributed throughout the world.

Today, energy is the catalyst for economic growth of any country. Data from the BP statistical review of world energy 2017 as shown in Fig. 1 suggests a decrease of about 10% in consumption of energy from oil (green line) and coal (navy line) have been observed over the last 50 years. This has been gradually replaced by other clean energy sources with a major contribution coming from nuclear (orange) and renewable energy source (dark orange).

Subcooled flow boiling enables high heat extraction, an immensely beneficial feature in a number of industrial systems. Herein, subcooled liquid enters the tube, and boiling commences at the wall, at a location where the temperature of the liquid adjacent to the wall exceeds the saturation temperature. This location is known as Onset of Nucleate Boiling (ONB). At a downstream location, the bubbles forming at the wall become more in number and start to depart from the wall, which is popularly known as the Onset of Significant Void (OSV) (Fig. 1).

Rocket engines, gas generation mechanisms such as automobile air bags and explosive devices employ high energy density materials (HEDMs) as fuels. Formulating an HEDM having high specific impulse, high density, low production cost, low sensitivity to impact and friction and low toxicity all at the same time is extremely challenging. In this regard, cage compounds with their severely strained molecular structures look promising. Chemical synthesis of such compounds is expensive and tedious.

Majority of the portable electronic devices used in our day-to-day life, starting from basic cell phone, smart phone, laptop, digital camera, camcorder, tablet, power tools etc. use Li-ion batteries as the power source. Imagine the next generation automobiles also running on such batteries, instead of burning fossil fuels and causing environmental pollution. Yes, there is a definite possibility for the same, leading to saving our environment and having us breathe fresh air, even in the cities.

A photodiode is a device capable of converting light energy into electrical signal. The materials used to make these devices critically define the properties and performance of the photo-devices. Thus the materials primarily act as a detrimental factor in limiting the performance of these photo- devices. This bottleneck can be removed partially by using plasmonic structures which can be fabricated easily by two-photon lithography (TPL).

Any elastic structure vibrates in the presence of fluid flow; for instance, we can see leaves in a tree, attached to branches via elastic stems, oscillate furiously on a windy day. These vibrations often occur due to vortices, which are essentially regions of intense fluid rotation. Vortices are periodically shed behind any solid body placed in a fluid flow, and they tend to ‘kick’ the solid as they are shed.

In several biological applications, it is required to maintain the cells above / below the room temperature implying the need for heating / cooling the microdevice. For instance, in polymerase chain reaction (PCR) a particular DNA sequence is amplified and used in applications such as pathogen detection and hereditary disorder diagnosis. The entire process takes place in 3 steps: denaturation, annealing and extension for which the different stations are required to be maintained at constant temperatures of 95°C, 55°C and 72°C, respectively.

More than 40% of energy in fossil fuels is lost in the form of ‘heat’ during different conversion processes. This results in not only inefficient usage of natural resources but also leads to environmental and water pollution. One of the techniques that can be used to recover this ‘waste heat’ is via a ‘thermoelectric generator’ which has no moving parts and converts heat directly into electrical power. Our research is focused on developing suitable materials for this purpose with the aim that they have high conversion efficiencies.

Intrinsically conducting polymers such as polyaniline, polythiophene, polypyrrole and polyethylenedioxy thiophene are not only good conductors of electricity, but also possess a property called pseudo-capacitance, which allows them to store electric charge through redox reaction. They therefore possess much higher power density than a battery and phenomenally higher energy density than a capacitor. This dual advantage makes them useful as ‘flywheels’ in energy storage systems. These ‘flywheels’ store surplus energy and provide it when needed.

In order to sustain the progress in the ever growing digital technology, there is need for new tools and resources that more efficiently store and processes digital information along with better economic spending, lower energy consummation and low environmental impact. However, the miniaturisation of electronic devices using current silicon-based technology is about to reach its maximum limit. In order to overcome this difficulties, scientists have now turned their focus to alternative routes.