Images with low quality spell doom not only for your photographic skills, but also for the numerous medical diagnosis that doctors do using scanned images of your body. Now, researchers have developed a new algorithm that can denoise such bad quality images in a few seconds. Running on advanced processing units called graphical processing units, the algorithm promises to be a new hope in the rising field medical imaging, satellite imaging and other fields dealing with high resolution images.
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Micro electro-mechanical Systems (MEMS), the technology of microscopic devices with moving parts, are finding new range of applications in the recent past due to the trend of ‘miniaturization’. They are increasingly being applied to an array of sensor technologies, including gas sensors. However, for MEMS based gas sensors to detect small traces of gases, they need to operate at higher temperatures. Now, researchers have designed a microheater made of molybdenum, which can successful provide the required range of temperature for the sensor to operate.
Technology has revolutionized almost every aspect of our lives - from healthcare to doing business. The field of meteorology is not far behind. In a recent study, scientists have leveraged the computing power of a new series of processors from Intel, to improve existing climate models and simulations. The new models, the researchers claim, have better accuracy and increased speeds and also free up meteorologists from the hassles of computer science.
The public transport system of Bengaluru is plagued by delays and inefficiencies that have resulted in huge losses to BMTC, the operator, and lack of quality services to the common people. Now, scientists from the Indian Institute of Science have proposed a new model of transport that aims to increase bus efficiency, reduce or eliminate delays and save money for both the transport corporation and its users - the people. The new model, researchers claim, could be a win-win situation for both and could revive the appeal of public transportation.
Science realises its complete potential when it is applied for the betterment of our lives. As a testimony to this, a group of researchers from the Indian Institute of Science have developed innovative technologies that benefit milk producers and silk growers. Their innovations, which recently won the prestigious Gandhian Young Technological Innovation award, uses nanotechnology to detect melamine, an adulterant, in milk and image processing techniques to detect the quality of silk.
Graphene, also called a “wonder material” is increasingly being used in the field of electronics due to its lightweight and electrical properties. Now, researchers at the Indian Institute of Science, Bangalore, have identified a potential drawback in graphene transistors that have metal contact leads. The metal atoms in the contacts react with graphene atoms, creating an unwanted disturbance or noise in the electronic circuit. This discovery may have major implications on using graphene for futuristic electronic applications.
Technology has revolutionised medicine in the past century. We now have imaging methodologies like X-rays, Computed Tomography (CT) scans and Magnetic Resonance Imaging (MRI) allowing us a look inside the body without cutting it open. Nanotechnology seems poised to write the next chapter of this revolution, with various applications in biomedical imaging, diagnosis and effective treatment of diseases. In yet another advancement in this direction, an interdisciplinary team of scientists from Materials Engineering Department and Department of Microbiology and Cell Biology at the Indian Institute of Science (IISc), Bangalore, have synthesised iron nanoparticles without any oxide cover that could be used to enhance the sensitivity of MRI by producing images with better contrast. They have also demonstrated the potential application of this research in the targeted delivery of medicines and other biological molecules to specific organs in the body.
Black coloured rooftops have become the norm of many of the cities’ landscape with increasing number of houses switching over to sustainable, efficient and clean energy source – solar energy. Solar-thermal power systems that convert solar energy to heat or electricity are becoming ubiquitous. These systems typically consist of a flat plate collector that utilizes solar absorber coatings to get maximum conversion efficiency from incident solar radiation to heat. These collectors are coated black to enhance the absorptance- the effectiveness of absorbing radiant energy. Now, a group of researchers, led by Prof. Bikramjit Basu from the Material Research Centre at the Indian Institute of Science, Bangalore, and Dr. Harish C Barshilia from CSIR-National Aerospace Laboratories, has developed a new, colourful coating for flat plate collectors, thereby increasing its absorptance without compromising the aesthetic appearance of the roofs where they are installed.
The Internet is a bottomless mine of information in various forms – text, videos and images. Organizing this information for easy search and retrieval is very beneficial to internet users, and poses challenges to computer scientists. While lot of research progress has been made about categorizing textual data, the same cannot be said about images and videos. A group of researchers at the Indian Institute of Science, Bangalore, has been attempting to make video search on the Internet user-friendly. In a recent paper, Prof. Chiranjib Bhattacharyya and a Ph.D. scholar Dr. Adway Mitra, at the Department of Computer Science and Automation (CSA), and Prof. Soma Biswas from the Department of Electrical Engineering, have presented techniques to this end.
Global Climate Models (GCMs) are mathematical models to understand and predict the Earth’s climate by projecting the real-world processes over time. These simulation tools help to predict future climate variables that will be useful to develop sustainable long, medium and short-term water resource planning strategies. A new study by a team of scientists - Prof. D. Nagesh Kumar from the Indian Institute of Science, Bangalore and Prof. K. Srinivasa Raju from BITS-Pilani, Hyderabad campus, has analyzed numerous available GCMs to choose the best that would be applicable in the Indian context. Such analysis helps in developing the best resource planning strategies and the best climate models that can be used for localized needs.