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Designing next generation analog chipsets for AI applications

5th July 2022

Researchers at the Indian Institute of Science (IISc) have developed a design framework to build next-generation analog computing chipsets that could be faster and require less power than the digital chips found in most electronic devices.

Using their novel design framework, the team has built a prototype of an analog chipset called ARYABHAT-1 (Analog Reconfigurable technologY And Bias-scalable Hardware for AI Tasks). This type of chipset can be especially helpful for Artificial Intelligence (AI)-based applications like object or speech recognition – think Alexa or Siri – or those that require massive parallel computing operations at high speeds.

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ARYABHAT-1 Chip Micrograph. Credits: NeuRonICS Lab, DESE, IISc

Most electronic devices, particularly those that involve computing, use digital chips because the design process is simple and scalable. “But the advantage of analog is huge. You will get orders of magnitude improvement in power and size,” explains Chetan Singh Thakur, Assistant Professor at the Department of Electronic Systems Engineering (DESE), IISc, whose lab is leading the efforts to develop the analog chipset. In applications that don’t require precise calculations, analog computing has the potential to outperform digital computing as the former is more energy-efficient.

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Test Setup of the ARYABHAT-1 Chip. Credits: NeuRonICS Lab, DESE, IISc

However, there are several technology hurdles to overcome while designing analog chips. Unlike digital chips, testing and co-design of analog processors is difficult. Large-scale digital processors can be easily synthesised by compiling a high-level code, and the same design can be ported across different generations of technology development – say, from a 7 nm chipset to a 3 nm chipset – with minimal modifications. Because analog chips don’t scale easily – they need to be individually customised when transitioning to the next generation technology or to a new application – their design is expensive. Another challenge is that trading off precision and speed with power and area is not easy when it comes to analog design. In digital design, simply adding more components like logic units to the same chip can increase precision, and the power at which they operate can be adjusted without affecting the device performance.

To overcome these challenges, the team has designed a novel framework that allows the development of analog processors which scale just like digital processors. Their chipset can be reconfigured and programmed so that the same analog modules can be ported across different generations of process design and across different applications. “You can synthesise the same kind of chip at either 180 nm or at 7 nm, just like digital design,” adds Thakur.

Different machine learning architectures can be programmed on ARYABHAT, and like digital processors, can operate robustly across a wide range of temperatures, the researchers say. They add that the architecture is also “bias-scalable” – its performance remains the same when the operating conditions like voltage or current are modified. This means that the same chipset can be configured for either ultra-energy-efficient Internet of Things (IoT) applications or for high-speed tasks like object detection.

The design framework was developed as part of IISc student Pratik Kumar’s PhD work, and in collaboration with Shantanu Chakrabartty, Professor at the McKelvey School of Engineering, Washington University in St Louis (WashU), USA, who also serves as WashU’s McDonnell Academy ambassador to IISc. “It’s good to see the theory of analog bias-scalable computing being manifested in reality and for practical applications,” says Chakrabartty, who had earlier proposed bias-scalable analog circuits.

The researchers have outlined their findings in two pre-print studies that are currently under peer review. They have also filed patents and are planning to work with industry partners to commercialise the technology.

REFERENCE

Kumar P, Nandi A, Chakrabartty S, Thakur CS, Process, Bias and Temperature Scalable CMOS Analog Computing Circuits for Machine Learning, arXiv preprint arXiv:2205.05664 (2022)
https://arxiv.org/abs/2202.05022

 

Kumar P, Nandi A, Chakrabartty S, Thakur CS, CMOS Circuits for Shape-Based Analog Machine Learning, arXiv:2202.05022 (2022)
https://arxiv.org/abs/2202.05022 

Thakur CS, Chakrabartty S, Kumar P, A RECONFIGURABLE AND SCALABLE MULTI-CORE ANALOG COMPUTING CHIP, Provisional IP, Challan: 2511210015847

CONTACT

Chetan Singh Thakur
Assistant Professor
Department of Electronic Systems Engineering (DESE)
Indian Institute of Science (IISc)
csthakur@iisc.ac.in
080-22933608

NOTE TO JOURNALISTS:

  1. a) If any of the text in this release is reproduced verbatim, please credit the IISc press release.
  2. b) For any queries about IISc press releases, please write to news@iisc.ac.in or pro@iisc.ac.in.

Nokia partners with Indian Institute of Science to establish Networked Robotics Center of Excellence

8th July 2022

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  • Center of Excellence to conduct research on 5G, AI technologies
  • Focus on solutions enabled by next-gen telecom networks for industrial and social use

08 July 2022

Bengaluru, India – Nokia and the Indian Institute of Science (IISc) today announced the opening of the Nokia Center of Excellence (CoE) in Networked Robotics at the IISc Bengaluru. The CoE will promote inter-disciplinary research involving robotics and advanced communication technologies in 5G and Artificial Intelligence (AI). The CoE will also develop use cases across industrial automation, agriculture and disaster management. The center will facilitate engagement and cooperation between academia, start-ups and industry ecosystem partners to research and develop these use cases. 

The research projects undertaken by the CoE will include the design of advanced robotics, AI and automation solutions built upon next generation telecom networks and their applications for solving societally relevant problems. The agreement for setting up the CoE in Networked Robotics was concluded in August 2020, and since then a core group has worked tirelessly to set up and equip the center.

Nokia will fund the CoE for three consecutive years in order to sustain the first phase of the partnership between Nokia and IISc.

Nishant Batra, Chief Strategy and Technology Officer at Nokia, said: “We want India to drive global innovation in an era of convergence where a few years from now, extended reality (XR) and digital-physical fusion will allow us to create, collaborate and communicate in unprecedented ways. There is substantial untapped intellectual capability and competence in India, and our collaboration with a prestigious institution like IISc will enable exciting possibilities for industry and society.”

Professor Govindan Rangarajan, Director at IISc, said: “Next generation communication technologies like 5G and 6G will contribute enormously to the growth of India’s economy. Our collaboration with a world-class company like Nokia will enable us to explore new frontiers for advanced technology research to benefit society as well as provide state-of-the-art training to our students to enable them to become technology leaders in the coming decades.”

From launching and enabling rapid growth of 2G/GSM technology in India in early 2000 and bringing high-quality 3G services in 2011 to pioneering 4G/LTE technology in 2012 and now preparing the nation for 5G, Nokia is an integral part of India’s remarkable progress in technology and connectivity over last 22 years.

Nokia’s active CSR programs in India align with Nokia’s key themes of Corporate Community Investment and Section 135 and Schedule VII of the Companies Act 2013 and Companies (CSR Policy) Rules 2014. Nokia has invested a cumulative amount of over 150 crores INR in CSR efforts in India so far.

Resources

 Press Release: Nokia to set up robotics lab at Indian Institute of Science for research on socially relevant use cases based on 5G and emerging technologies | Nokia

 About Nokia

At Nokia, we create technology that helps the world act together.

As a trusted partner for critical networks, we are committed to innovation and technology leadership across mobile, fixed and cloud networks. We create value with intellectual property and long-term research, led by the award-winning Nokia Bell Labs.

Adhering to the highest standards of integrity and security, we help build the capabilities needed for a more productive, sustainable and inclusive world.

Media Inquiries:

Nokia Communications
Email: press.services@nokia.com

 About IISc

The Indian Institute of Science (IISc) was established in 1909 by a visionary partnership between the industrialist Jamsetji Nusserwanji Tata, the Mysore royal family and the Government of India. Over the last 113 years, IISc has become India’s premier institute for advanced scientific and technological research and education. Its mandate is “to provide for advanced instruction and to conduct original investigations in all branches of knowledge as are likely to promote the material and industrial welfare of India.” In 2018, IISc was selected as an Institution of Eminence (IoE) by the Government of India, and it consistently figures among the top Indian institutions in world university rankings.

www.iisc.ac.in

 Contact:

Public Relations Office (pro@iisc.ac.in); Office of Communications (news@iisc.ac.in)

ನೆಟ್ ವರ್ಕ್ಡ್ ರೊಬೊಟಿಕ್ಸ್ ಉತ್ಕೃಷ್ಟತಾ ಕೇಂದ್ರ ಸ್ಥಾಪಿಸಲು ನೋಕಿಯಾ- ಐ.ಐ.ಎಸ್ ಸಿ. ಸಹಭಾಗಿತ್ವ

08ನೇ ಜುಲೈ 2022

ಇಂಡಿಯಾ– ನೋಕಿಯಾ ಮತ್ತು ಭಾರತೀಯ ವಿಜ್ಞಾನ ಸಂಸ್ಥೆ (..ಎಸ್ ಸಿಹಾಗೂ ಭಾರತೀಯ ವಿಜ್ಞಾನ ಸಂಸ್ಥೆಬೆಂಗಳೂರು, ಐ..ಎಸ್ಸಿ.ಯಲ್ಲಿ ನೆಟ್ ವರ್ಕ್ಡ್ ರೊಬೊಟಿಕ್ಸ್ಗೆ ಸಂಬಂಧಿಸಿದ ನೋಕಿಯಾ ಉತ್ಕಷ್ಟತಾ ಕೇಂದ್ರದ ಕಾರ್ಯಾರಂಭವನ್ನು ಇಂದು ಪ್ರಕಟಿಸಿದವುಈ ಉತ್ಕೃಷ್ಟತಾ ಕೇಂದ್ರವು ರೋಬೋಟಿಕ್ಸ್ ಗೆ ಸಂಬಂಧಿಸಿದ ಅಂತರ್ಶಿಸ್ತೀಯ ಸಂಶೋಧನೆಯನ್ನು ಮತ್ತು 5ಜಿ ಹಾಗೂ ಕೃತಕ ಬುದ್ಧಿಮತ್ತೆ (ಎಐ)ಯಲ್ಲಿ ಉನ್ನತ ಸಂವಹನ ತಾಂತ್ರಿಕತೆಯನ್ನು ಉತ್ತೇಜಿಸುತ್ತದೆಕೈಗಾರಿಕಾ ಸ್ವಯಂಚಾಲನೆಕೃಷಿ ಮತ್ತು ವಿಕೋಪ ನಿರ್ವಹಣೆ ವಲಯಗಳ ಕ್ರಮಾನುಸರಣೆಗಳನ್ನು ಕೂಡ (ಯೂಸ್ ಕೇಸಸ್ಈ ಕೇಂದ್ರವು ಅಭಿವೃದ್ಧಿಪಡಿಸುತ್ತದೆಜೊತೆಗೆಶಿಕ್ಷಣ ವಲಯ, ನವೋದ್ಯಮಗಳು ಹಾಗೂ ಉದ್ಯಮ ಕಾರ್ಯಪರಿಸರ ಪಾಲುದಾರರ ನಡುವೆ ಸಂಶೋಧನೆಗಳನ್ನು ಮತ್ತು ಕ್ರಮಾನುಸರಣೆಗಳನ್ನು ಸಿದ್ಧಪಡಿಸುವುದರಲ್ಲಿ ಪರಸ್ಪರ ತೊಡಗಿಸಿಕೊಳ್ಳುವಿಕೆಗೆ ಹಾಗೂ ಸಹಕಾರಕ್ಕೆ ಅನುವು ಮಾಡಿಕೊಡುತ್ತದೆ.

 

ಈ ಉತ್ಕೃಷ್ಟತಾ ಕೇಂದ್ರವು ಕೈಗೊಂಡಿರುವ ಕಾರ್ಯಯೋಜನೆಗಳಲ್ಲಿ, ಮುಂದಿನ ತಲೆಮಾರಿನ ದೂರಸಂಪರ್ಕ ಜಾಲಗಳು ಮತ್ತು ಸಾಮಾಜಿಕ ಪ್ರಸ್ತುತತೆಯ ಸಮಸ್ಯೆಗಳಿಗೆ ಪರಿಹಾರ ಕಂಡುಹಿಡಿಯುವಲ್ಲಿ ಅವುಗಳ ಆನ್ವಯಿಕತೆಗಳನ್ನು ಆಧರಿಸಿದ ಸುಧಾರಿತ ರೊಬೊಟಿಕ್ಸ್, ಕೃತಕ ಬುದ್ಧಿಮತ್ತೆ ಹಾಗೂ ಸ್ವಯಂಚಾಲನೆ ಪರಿಹಾರಗಳ ವಿನ್ಯಾಸಗಳನ್ನು ಒಳಗೊಂಡಿವೆ. ನೆಟ್ ವರ್ಕ್ಡ್ ರೊಬೊಟಿಕ್ಸ್ ನಲ್ಲಿ ಸಿಒಇ (ಉತ್ಕಷ್ಟತಾ ಕೇಂದ್ರ) ಸ್ಥಾಪಿಸುವ ಸಂಬಂಧವಾಗಿ ಒಪ್ಪಂದ ಪ್ರಕ್ರಿಯೆಯು 2020ರ ಆಗಸ್ಟ್ ನಲ್ಲಿ ಮುಕ್ತಾಯಗೊಂಡಿತ್ತು. ಆಗಿನಿಂದಲೂ ತಜ್ಞರ ತಂಡವು ಈ ಕೇಂದ್ರದ ಸ್ಥಾಪನೆಯ ನಿಟ್ಟಿನಲ್ಲಿ ಅವಿರತವಾಗಿ ಶ್ರಮಿಸುತ್ತಿತ್ತು.

 

ಈಗ ಒಪ್ಪಂದದ ಅನ್ವಯ ನೋಕಿಯಾವು ಈ ಉತ್ಕಷ್ಟತಾ ಕೇಂದ್ರಕ್ಕೆ (ಸಿಒಇ) ಸತತ 3 ವರ್ಷಗಳ ಅವಧಿಯವರೆಗೆ ಅನುದಾನ ಒದಗಿಸಲಿದೆ.

 

ತಾಂತ್ರಿಕ ಸಮಾಗಮಗಳ ಕಾಲಘಟ್ಟದಲ್ಲಿ ಭಾರತವು ಜಾಗತಿಕ ನಾವೀನ್ಯತೆಯನ್ನು ನಿರ್ದೇಶಿಸಬೇಕೆಂಬುದು  ನಮ್ಮ ಬಯಕೆಯಾಗಿದೆಇನ್ನು ಕೆಲವೇ ವರ್ಷಗಳಲ್ಲಿ ವಿಸ್ತರಿತ ವಾಸ್ತವತೆ (XR- ಎಕ್ಸ್ ಟೆಂಡೆಡ್ ರಿಯಾಲಿಟಿ) ಮತ್ತು ಡಿಜಿಟಲ್-ಭೌತಿಕ ಬೆಸುಗೆಯು ಹಿಂದೆಂದೂ ಕಂಡಿರದ ರೀತಿಯಲ್ಲಿ ರೂಪಿಸಲು, ಸಹಭಾಗಿತ್ವ ಸಾಧಿಸಲು ಹಾಗೂ ಸಂವಹನ ನಡೆಸುವುದನ್ನು ಸಾಧ್ಯವಾಗಿಸಲಿದೆ. ಭಾರತದಲ್ಲಿ ಅವಕಾಶಕ್ಕಾಗಿ ಕಾಯುತ್ತಿರುವ ಬೌದ್ಧಿಕ ಸಾಮರ್ಥ್ಯ ಮತ್ತು ಸ್ಪರ್ಧಾತ್ಮಕತೆ ಗಮನಾರ್ಹ ಪ್ರಮಾಣದಲ್ಲಿದೆ. ಐ.ಐ.ಎಸ್ ಸಿ.ಯಂತಹ ಪ್ರತಿಷ್ಠಿತ ಸಂಸ್ಥೆಯೊಂದಿಗಿನ ನಮ್ಮ ಒಪ್ಪಂದವು ಉದ್ಯಮ ಹಾಗೂ ಸಮಾಜಕ್ಕೆ ಕುತೂಹಲಕರ ಸಾಧ್ಯತೆಗಳನ್ನು ಉಂಟುಮಾಡಲಿದೆ ಎನ್ನುತ್ತಾರೆ ನೋಕಿಯಾದ ಮುಖ್ಯ ಕಾರ್ಯತಂತ್ರ ಹಾಗೂ ತಾಂತ್ರಿಕ ಅಧಿಕಾರಿ ನಿಶಾಂತ್ ಬಾತ್ರ.

 

“5ಜಿ ಮತ್ತು 6ಜಿಯಂತಹ ಮುಂಬರುವ ತಲೆಮಾರಿನ ಸಂವಹನಗಳು ಭಾರತದ ಆರ್ಥಿಕತೆಯ ಬೆಳವಣಿಗೆಗೆ ಭಾರೀ ದೊಡ್ಡಮಟ್ಟದ ಕೊಡುಗೆ ನೀಡಲಿವೆಜಾಗತಿಕ ಗುಣಮಟ್ಟದ ನೋಕಿಯಾ ಕಂಪನಿ ಜೊತೆ ನಾವು ಮಾಡಿಕೊಂಡಿರುವ ಸಹಭಾಗಿತ್ವದಿಂದಾಗಿ ಸಮಾಜದ ಉಪಯೋಗಕ್ಕಾಗಿ ಉನ್ನತ ತಂತ್ರಜ್ಞಾನದ ಸಂಶೋಧನೆಯ ಹೊಸ ಮಜಲುಗಳನ್ನು ಶೋಧಿಸಲು ಹಾಗೂ ವಿದ್ಯಾರ್ಥಿಗಳಿಗೆ ಮುಂಬರುವ ದಶಕಗಳಲ್ಲಿ ತಾಂತ್ರಿಕ ನಾಯಕರಾಗುವುದಕ್ಕೆ ಪೂರಕವಾಗಿ ಆಧುನಿಕ ತರಬೇತಿಯನ್ನು ಒದಗಿಸಲು ಅನುವು ಮಾಡಿಕೊಡಲಿದೆ ಎನ್ನುವುದು ಐ..ಎಸ್ ಸಿನಿರ್ದೇಶಕ ಪ್ರೊ.ರಂಗರಾಜನ್ ಅವರ ಅಭಿಪ್ರಾಯ.

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ವರ್ಷ 2000ರ ಆರಂಭದಲ್ಲಿ, ಭಾರತದಲ್ಲಿ 2ಜಿ/ಜಿಎಸ್ಎಂ ತಾಂತ್ರಿಕತೆಯನ್ನು, 2011ರಲ್ಲಿ ಅಧಿಕ ಗುಣಮಟ್ಟದ 3 ಜಿ ಸೇವೆಗಳನ್ನು, 2012ರಲ್ಲಿ 4 ಜಿ/ಎಲ್.ಟಿ.ಇ. ತಾಂತ್ರಿಕತೆಯನ್ನು ಹಾಗೂ ಈಗ ದೇಶವನ್ನು 5ಜಿ ತಾಂತ್ರಿಕತೆಗೆ ಸನ್ನದ್ಧಗೊಳಿಸುವುದರಲ್ಲಿ ನೋಕಿಯಾ ವಹಿಸಿರುವ ಪಾತ್ರ ಗಮನಾರ್ಹವಾಗಿದೆ.

 

ಭಾರತದಲ್ಲಿ ನೋಕಿಯಾದ ಸಕ್ರಿಯ ಕಾರ್ಪೊರೇಟ್ ಸಾಮಾಜಿಕ ಜವಾಬ್ದಾರಿ (ಸಿ.ಎಸ್.ಆರ್.) ಕಾರ್ಯಕ್ರಮಗಳು ಕಂಪನಿಯ ಪ್ರಮುಖ ವಿಷಯಗಳಾದ  ಕಾರ್ಪೊರೇಟ್ ಸಮುದಾಯ ಹೂಡಿಕೆ, ಸೆಕ್ಷನ್ 135 ಹಾಗೂ ಕಂಪನಿಗಳ ಕಾಯಿದೆ 2013ರ ಷೆಡ್ಯೂಲ್ VII ಮತ್ತು ಕಂಪನಿಗಳ (ಸಿಎಸ್ಆರ್ ನೀತಿ) ನಿಯಮಾವಳಿಗಳು 2014, ಇವಕ್ಕೆ ಅನುಗುಣವಾಗಿವೆ. ನೋಕಿಯಾವು ಭಾರತದಲ್ಲಿ ಸಿಎಸ್ಆರ್ ಕಾರ್ಯಕ್ರಮಗಳಿಗಾಗಿ ಒಟ್ಟಾರೆ ರೂ 150 ಕೋಟಿ ರೂಪಾಯಿಗಳನ್ನು ಹೂಡಿಕೆ ಮಾಡಿದೆ.

 

ಆಕರ ಮೂಲಗಳು:

ಪತ್ರಿಕಾ ಹೇಳಿಕೆ: Nokia to set up robotics lab at Indian Institute of Science for research on socially relevant use cases based on 5G and emerging technologies | Nokia

 

ನೋಕಿಯಾ ಬಗ್ಗೆ

ಪ್ರಪಂಚದಲ್ಲಿರುವ ಎಲ್ಲರೂ ಒಟ್ಟಾಗಿ ರಚನಾತ್ಮಕ ಕಾರ್ಯದಲ್ಲಿ ಪಾಲ್ಗೊಳ್ಳಲು ಪೂರಕವಾದ ತಂತ್ರಜ್ಞಾನವನ್ನು ನಾವು ರೂಪಿಸುತ್ತೇವೆ.

ಮಹತ್ವದ ನೆಟ್ ವರ್ಕ್ ಗಳಿಗಾಗಿ ವಿಶ್ವಸಾರ್ಹ ಪಾಲುದಾರರಾಗಿ ಮೊಬೈಲ್ಸ್ಥಿರ ಹಾಗೂ ಕ್ಲೌಡ್ ಜಾಲ ವಲಯಗಳ ನಾವೀನ್ಯತೆ ಮತ್ತು ತಾಂತ್ರಿಕ ನಾಯಕತ್ವಕ್ಕೆ ನಾವು ಬದ್ಧರಾಗಿದ್ದೇವೆಪ್ರಶಸ್ತಿ ಪುರಸ್ಕೃತ ನೋಕಿಯಾ ಬೆಲ್ ಲ್ಯಾಬ್ಸ್ ನೇತೃತ್ವದಲ್ಲಿ ಬೌದ್ಧಿಕ ಸ್ವತ್ತು ಹಾಗೂ ದೀರ್ಘಾವಧಿ ಸಂಶೋಧನೆಯಲ್ಲಿ ನಾವು ಮೌಲ್ಯವನ್ನು ಸೃಷ್ಟಿಸುತ್ತೇವೆ.

ಶ್ರೇಷ್ಠ ಮಟ್ಟದ ವಿಶ್ವಾಸಾರ್ಹತೆ ಮತ್ತು ಸುರಕ್ಷತೆಗೆ ಒತ್ತುಕೊಟ್ಟು ಹೆಚ್ಚು ಉತ್ಪಾದಕವಾದಸುಸ್ಥಿರವಾದ ಹಾಗೂ ಎಲ್ಲರನ್ನೂ ಒಳಗೊಳ್ಳುವ ಜಗತ್ತಿಗೆ ಬೇಕಾದ ಸಾಮರ್ಥ್ಯಗಳನ್ನು ಬೆಳೆಸಲು ನಾವು ಕೈಜೋಡಿಸುತ್ತೇವೆ.

ಮಾಧ್ಯಮ ಸಂಪರ್ಕ:                                                                   ಸಂವಹನಗಳು

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..ಎಸ್ ಸಿಬಗ್ಗೆ

ಉದ್ಯಮಿ ಜಮ್ ಷೇಟ್ ಜಿ ನಸರ್ ವಾಂಜಿ ಟಾಟಾಮೈಸೂರು ರಾಜಸಂಸ್ಥಾನ ಮತ್ತು ಭಾರತ ಸರ್ಕಾರಗಳ ದೂರದರ್ಶಿತ್ವದ ಪಾಲುದಾರಿಕೆಯಲ್ಲಿ ಭಾರತ ವಿಜ್ಞಾನ ಸಂಸ್ಥೆಯು (..ಎಸ್ ಸಿ.ಯಲ್ಲಿ) 1909ರಲ್ಲಿ ಸ್ಥಾಪನೆಗೊಂಡಿತುಕಳೆದ 113 ವರ್ಷಗಳಲ್ಲಿ ಐ..ಎಸ್.‍ಸಿ.ಯು ಆಧುನಿಕ ವೈಜ್ಞಾನಿಕ ಹಾಗೂ ತಾಂತ್ರಿಕ ಸಂಶೋಧನೆ ಮತ್ತು ಶಿಕ್ಷಣಕ್ಕೆ ಸಂಬಂಧಿಸಿದಂತೆ ಭಾರತದ ಪ್ರಮುಖ ಸಂಸ್ಥೆಯಾಗಿ ಬೆಳೆದಿದೆಭಾರತದ ಭೌತಿಕ ಹಾಗೂ ಕೈಗಾರಿಕಾ ಅಭ್ಯುದಯಕ್ಕೆ ಕಾರಣವಾಗುವಂತಹ ಉನ್ನತ ಬೋಧನೆಗೆ ಹಾಗೂ ಸ್ವೋಪಜ್ಞ ಪರಿವೀಕ್ಷಣೆಗಳಿಗೆ ಎಲ್ಲಾ ಜ್ಞಾನಶಾಖೆಗಳಲ್ಲಿ ಅವಕಾಶ ಕಲ್ಪಿಸುವುದಕ್ಕೆ” ಸಂಸ್ಥೆಯ ಕಟಿಬದ್ಧವಾಗಿದೆಭಾರತ ಸರ್ಕಾರವು 2018ರಲ್ಲಿ ಐ..ಎಸ್ ಸಿ.ಯನ್ನು ಇನ್ಸ್ ಟಿಟ್ಯೂಷ್ ಆಫ್ ಎಮೆನೆನ್ಸ್”  ಎಂದು ಆಯ್ಕೆಮಾಡಿತುಸಂಸ್ಥೆಯು ನಿರಂತರವಾಗಿ, ಜಾಗತಿಕ ವಿಶ್ವವಿದ್ಯಾಲಯಗಳ ರಾಂಕಿಂಗ್ ನಲ್ಲಿ ಭಾರತದ ಅಗ್ರಮಾನ್ಯ ಸಂಸ್ಥೆಗಳಲ್ಲಿ ಒಂದು ಎಂಬ ಸ್ಥಾನಮಾನಕ್ಕೆ ಪಾತ್ರವಾಗುತ್ತಿದೆ.

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ಸಂಪರ್ಕಿಸಿ:

ಸಾರ್ವಜನಿಕ ಸಂಪರ್ಕ ಕಚೇರಿ (pro@iisc.ac.in); ಸಂವಹನ ಕಚೇರಿ (news@iisc.ac.in)

Generating green hydrogen from biomass, an abundant renewable energy source

12th July 2022

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The oxy-steam gasification system at the Combustion, Gasification and Propulsion laboratory (CGPL), IISc

An innovative technology to produce hydrogen from biomass has been developed by a team of researchers from the Indian Institute of Science (IISc). The team was led by S Dasappa, Professor at the Centre for Sustainable Technologies, and Chair of the Interdisciplinary Centre for Energy Research at IISc.

India uses nearly 50 lakh tonnes of hydrogen for various processes in different sectors, and the hydrogen market is expected to grow substantially in the coming years, says Dasappa. “But most of the hydrogen we currently use comes from fossil fuels through a process called steam methane reforming route.” Now, his team has found a way to extract green hydrogen from biomass, a renewable energy source.

The process consists of two steps. In the first step, biomass is converted into syngas – a hydrogen-rich fuel gas mixture – in a novel reactor using oxygen and steam. In the second step, pure hydrogen is generated from syngas using an indigenously developed low-pressure gas separation unit.

Both these technologies, developed in Dasappa’s lab, ensure that this process is a highly efficient method of generating green hydrogen – it produces 100 g of hydrogen from 1 kg of biomass even though only 60 g of hydrogen are present in 1 kg of biomass. This is because in this process, steam, which also contains hydrogen, participates in both homogeneous

and heterogeneous reactions (in homogeneous reactions, reactants are in a single phase whereas in heterogeneous reactions, the reactants are in two or more phases).

The production of green hydrogen using this process is environmentally friendly for another reason – it is carbon negative. The two carbon-based by-products are solid carbon, which serves as a carbon sink, and carbon dioxide, which can be used in other value-added products.

“This indigenous technology is a step towards achieving the goal of Atmanirbhar Bharat of the Honourable Prime Minister,” says Dasappa. The technology also dovetails nicely with the National Hydrogen Energy Roadmap, an initiative of the Government of India that aims to promote the use of hydrogen as a fuel and reduce dependence on fossil fuels, he adds.

The project was supported by the Ministry of New and Renewable Energy and the Department of Science and Technology of the Government of India. The team also acknowledges the support of the Indian Oil Corporation Limited in scaling up the technology to produce 0.25 tonnes of hydrogen per day for use in hydrogen-powered fuel cell buses.

Dasappa believes that green hydrogen could be used in several other industries as well – in the steel industry to decarbonise steel, in agriculture to manufacture green fertilisers, and in many sectors currently using hydrogen produced from fossil fuels.  “Moreover, the same platform can be used for methanol and ethanol production,” he adds.

CONTACT: 

S Dasappa
Chair, Interdisciplinary Centre for Energy Research
Professor, Centre for Sustainable Technologies
Indian Institute of Science (IISc)
dasappa@iisc.ac.in
080-2293 2338

NOTE TO JOURNALISTS:

  1. If any of the text in this release is reproduced verbatim, please credit the IISc press release.
  2. For any queries about IISc press releases, please write to news@iisc.ac.inor pro@iisc.ac.in.

IISc partners with CryptoRelief to establish Viral Genome Sequencing Lab

17th July 2022

A Viral Genome Sequencing Lab, established with support from CryptoRelief, was inaugurated at the Centre for Infectious Disease Research (CIDR), IISc, on Sunday, 17 July 2022

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The lab was established with a grant from CryptoRelief. The grant supported the expansion of the existing Viral BSL3 facility at IISc. The expanded lab was inaugurated by a team of CryptoRelief core volunteers in the presence of Deans and faculty members of IISc.

The Viral Genome Sequencing Lab will focus on studies related to the SARS-CoV-2 virus. These include continuous surveillance and tracking of virus mutations and variants. The expanded Viral BSL3 facility will support research on assessment of virulence and cross-reactive immunity of SARS-CoV-2 mutants and variants of concern in cell culture and animal models.

For more than a year, IISc’s Centre for Infectious Disease Research has been actively working with the state and central government to provide COVID-19 RT-PCR diagnostic services and conducting research involving SARS-COV-2 virus.

The new viral genome sequencing facility will be an important addition to the Centre and will enhance the ongoing efforts to better understand SARS-CoV-2 virus evolution and its impact on our health.

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Professor Govindan Rangarajan, Director of IISc, said: “The Viral Genome Sequencing Lab will contribute not only towards tackling the threat that COVID-19 poses, but will also ensure that we are ready to handle future health emergencies as well. We are grateful to CryptoRelief for partnering with us on this critical initiative.”

A member of the CryptoRelief core volunteer team said: “It is an honour for CryptoRelief to support and partner with the Indian Institute of Science. The SARS-CoV-2 virus has been evolving over time. Understanding the new variants that are coming up and whether existing vaccines can combat these variants is important. Through this support, we intend to take a step towards that.

About IISc

The Indian Institute of Science (IISc) was established in 1909 by a visionary partnership between the industrialist Jamsetji Nusserwanji Tata, the Mysore royal family and the Government of India. Over the last 113 years, IISc has become India’s premier institute for advanced scientific and technological research and education. Its mandate is “to provide for advanced instruction and to conduct original investigations in all branches of knowledge as are likely to promote the material and industrial welfare of India.” In 2018, IISc was selected as an Institution of Eminence (IoE) by the Government of India, and it consistently figures among the top Indian institutions in world university rankings.

www.iisc.ac.in

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About CryptoRelief

Crypto Relief is the result of the global crypto community mobilizing to help India combat the COVID19 crisis, and to help it prepare for future outbreaks. The fund was started by Sandeep Nailwal (co-founder, Polygon) and has since been supported by Vitalik Buterin (co-founder, Ethereum) and Balaji S. Srinivasan (former CTO at Coinbase).

https://cryptorelief.in/

Computer simulations aid scientists in gauging battery performance

25th July 2022

– Narmada Khare

A crucial but poorly-studied parameter that dictates battery performance is the migration barrier. It determines the rate at which ions move through an electrode inside the battery, and ultimately the rate at which it charges or discharges. Because it is hard to measure the migration barrier in the lab, researchers typically use different computer simulations or approximations to quickly predict migration barrier values. However, very few of these simulations have been experimentally verified so far.

In a new study, researchers at the Indian Institute of Science (IISc) and their collaborators comprehensively analysed widely-used computational techniques, and verified their predictions of the migration barrier values against actual data observed in lab measurements. Based on their analysis, the team proposes a set of robust guidelines to help researchers choose the most accurate computational framework for testing materials that can be used to develop highly efficient batteries in the future.

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Schematic of ionic migration in a sample intercalation host framework. Yellow spheres are the moving ions (e.g., Li, Na, Mg), while the other species constituting the structure are indicated by blue and orange spheres. The inset indicates the nominal variation of the potential energy as the ion migrates within the structure, with Em signifying the migration barrier. Credit: Reshma Devi

Lithium-ion batteries, which power mobile phones and laptops, consist of three major components: a solid negative electrode (anode), a solid positive electrode (cathode) and either a liquid or solid electrolyte that separates them. While charging or discharging, lithium ions migrate across the electrolyte, creating a potential difference. “The electrodes in lithium-ion batteries are not 100% solid. Think of them like a sponge. They have ‘pores’ through which a lithium ion has to pass,” explains Sai Gautam Gopalakrishnan, Assistant Professor at the Department of Materials Engineering, IISc, and corresponding author of the paper published in npj Computational Materials

An important parameter that determines the rate at which the lithium ions penetrate these pores is the migration barrier – the energy threshold that the ions need to overcome to traverse through the electrode. “The lower the migration barrier, the faster you can charge or discharge the battery,” says Reshma Devi, PhD student at the Department of Materials Engineering and first author of the study.

“The same migration barrier value is calculated by one group using one computational technique and another group by using another technique. The values may be equivalent, but we cannot know that for sure,” explains Gopalakrishnan.

Two specific approximations, called Strongly Constrained and Approximately Normed (SCAN) and Generalised Gradient Approximation (GGA), are the most widely used methods to computationally arrive at the migration barrier, but each one has its own disadvantages. “We took nine different materials,” Reshma Devi explains. “We checked which of the approximations come closest to the experimental values for each.”

The team found that the SCAN functional had better numerical accuracy overall, but the GGA calculations were faster. GGA was found to have a reasonable level of accuracy in calculating the migration barrier in certain materials (such as lithium phosphate), and might be a better option if a quick estimation was needed, the researchers suggest.

Such insights can be valuable for scientists who seek to test new materials for their performance before they are adapted for battery-related applications, says Gopalakrishnan. “Suppose you have an unknown material and if you quickly want to see whether this material is useful in your application, then you can use computations to do that, provided you know which computational approximation gives you the closest values. This is useful when it comes to materials discovery.”

The team is also working on developing machine learning tools that can help speed up predictions of migration barriers for a diverse range of materials.

 

REFERENCE:  

Reshma Devi, Baltej Singh, Pieremanuele Canepa, Gopalakrishnan Sai Gautam, “Effect of Exchange-Correlation Functionals on the Estimation of Migration Barriers in Battery Materials”, npj Computational Materials 8, 160 (2022).

https://www.nature.com/articles/s41524-022-00837-0

CONTACT: 

Sai Gautam Gopalakrishnan
Assistant Professor
Department of Materials Engineering, Indian Institute of Science
Email: saigautamg@iisc.ac.in
Phone Number: +91-80-2293-2342

NOTE TO JOURNALISTS:

  1. If any of the text in this release is reproduced verbatim, please credit the IISc press release.
  2. For any queries about IISc press releases, please write to news@iisc.ac.inor pro@iisc.ac.in.

IISc signs MoU with Indian Navy for collaborative research

30th July 2022

Indian Institute of Science (IISc) and the Indian Navy signed an MoU on 29 July 2022, to collaborate on aviation research and development, and to ramp up self-reliance efforts for the Indian Navy, in line with the goals of Atmanirbhar Bharat.

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The MoU provides a formal basis for the Indian Navy to interact with relevant faculty members at IISc and will promote joint research programmes in areas of mutual interest.

  The MoU was signed by Captain Sridhar Warrier, Registrar, IISc and Captain P Vinayagam, Capt (APP), Indian Navy, in the presence of senior members of the Navy including Rear Admiral Deepak Bansal, VSM, ACNS (Air Materiel), and Commodore Raja Vinod, Commodore Superintendent, NAY (Goa), apart from other senior officers from the Indian Navy. Also present at the occasion were Chairs of several departments in the Division of Mechanical Sciences, and the Office of Research Grants at IISc.

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The areas of collaboration under this MoU will fall under the domain of Aerospace/Aeronautical Engineering, including design and education technology. Specialisations that will be under focus include Propulsion and Propulsion Systems, Steel Technology, Metallurgy and Material Sciences, and Corrosion Science; Systems and Controls, Instrumentation and Sensors; Environmental Science and Engineering, Energy Science and Engineering; Management (Technical and Logistics), Industrial Engineering and Operational Research, Nanotechnology and MEMS (Micro Electro Mechanical Systems), Artificial Intelligence, Data Analytics, and Machine Learning.

“It is a privilege for us to collaborate with the Indian Navy in these important areas of mutual interest. We look forward to the many exciting research and development outcomes that will emerge from this partnership,” said Capt Warrier.

The collaboration will also foster regular interactions between IISc faculty members and officers of the Indian Navy.

CONTACT: 

Office of Research Grants | office.org@iisc.ac.in
Office of Communications | news@iisc.ac.in

Photos: KG Haridasan

HDFC Bank Parivartan signs MoU with IISc

2nd August 2022

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Photo Credits: KG Haridasan & S Tharesh

On 29 July 2022, HDFC Bank Parivartan signed a Memorandum of Understanding (MoU) with the Indian Institute of Science (IISc)Under the MoU, HDFC Bank Parivartan has pledged Rs 107.76 crore to support three wings of the Bagchi-Parthasarathy Hospital at IISc. The three wings to be supported by the Bank are the Cardiology wing, Radiology wing, and Emergency Medicine wing.

IISc is setting up a multi-speciality, not-for-profit, 832-bed hospital, called the Bagchi-Parthasarathy Hospital, along with a Postgraduate Medical School within its Bengaluru campus. The hospital is expected to be fully functional by the end of 2024 while the first batch of MD/PhD students will be admitted in the year 2025.

HDFC Bank has partnered with IISc for the first time with the aim of improving the healthcare infrastructure in the region.

Listed below is the direct impact of HDFC Bank’s partnership with IISc within the first five years (2025-2029):

  • The Cardiology wing is expected to see about 1,83,000 patients in the outpatient section and 18,300 patients in the in-patient section and train at least 20 super specialist doctors
  • The Radiology wing is expected to benefit an estimated 4,28,326 patients in the first five years and train 20 super specialist doctors
  • The Emergency Medicine wing will benefit 56,304 patients and train 50 super specialist doctors

“HDFC Bank’s partnership with IISc Bangalore is aligned with our commitment to improve healthcare and medical infrastructure across the country,” said Ms Ashima Bhat, Group Head, ESG & CSR, Business Finance & Strategy, Administration and Infrastructure, HDFC Bank. “The new hospital and the medical school will not only bolster the healthcare needs of the entire region but will also provide a new generation of physician-scientists. HDFC Bank has always supported nation-building activities and the impact of the medical school/hospital is expected to set the tone for sustainable health goals and policies for the nation. It will serve as a model of clinical research and training that can be emulated across the country. We look forward to working closely with IISc Bangalore in this journey.”

 

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Photo Credits: KG Haridasan & S Tharesh

Prof Govindan Rangarajan, Director, IISc said, “After pursuing excellence in science and engineering research for 113 years, IISc has embarked upon a new frontier of clinical research through the establishment of the Bagchi-Parthasarathy Hospital and IISc Medical School. We are thankful to HDFC Bank for being a major partner in this new initiative and providing support for the establishment of three important wings: Cardiology, Radiology, and Emergency Medicine at the Hospital. We look forward to expanding this engagement with HDFC Bank in transforming the future of healthcare in this country.”

HDFC Bank is the amongst the largest corporate CSR spenders in the country. The bank’s key focus areas include care for climate, rural development, education, skill development, healthcare & hygiene and financial literacy under Parivartan.

About HDFC BANK: 

For more information, please visit: www.hdfcbank.com

Media queries: 

Sherna D’Mello
Corporate Communications
HDFC Bank Ltd., Mumbai
Mobile: 09920888014
sherna.dmello@hdfcbank.com

Madhu Chhibber
Head, Corporate Communications
HDFC Bank Ltd., Mumbai
Mobile: 9833775515
madhu.chhibber@hdfcbank.com 

IISc Office of Communications
news@iisc.ac.in

Using fish ear bones to estimate seawater temperature

10th August 2022

– Pratibha Gopalakrishna

Researchers at the Indian Institute of Science (IISc) have identified a way to estimate ancient seawater temperature by probing tiny bones in the ears of fish.

Oceans cover three quarters of the Earth’s surface and host many remarkable life forms. Earth scientists have been attempting to reconstruct the seawater temperature over time, but it is not easy to do so. “When you go back in time, you don’t have any fossilised seawater,” explains Ramananda Chakrabarti, Associate Professor at the Centre for Earth Sciences (CEaS), IISc, and corresponding author of the study published in Chemical Geology. Therefore, he and his PhD student, Surajit Mondal, in collaboration with Prosenjit Ghosh, Professor at CEaS, turned to otoliths – tiny bones found in the inner ear of fish.

Like corals, otoliths are made of calcium carbonate and grow throughout a fish’s lifetime by accumulating minerals from seawater. Similar to tree rings, these otoliths also hold clues to the fish’s age, migration patterns, and the type of water that the fish lived in. For several years, Chakrabarti and his team have been tracking calcium carbonate deposits found in tiny animals like corals or foraminifera. In the current study, they chose otoliths as scientists have discovered fossilised otolith samples dating as far back as the Jurassic period (172 million years ago).

The researchers used six present-day otolith samples collected from different geographical locations along the east coast of North America. They analysed the ratio of different calcium isotopes in these otoliths with a Thermal Ionisation Mass Spectrometer (TIMS). By measuring the ratios of calcium isotopes in the sample, they were able to correlate it with the seawater temperatures from which the fish were collected. “We demonstrated that calcium isotopes are a powerful tracer of water temperature, and Surajit’s efforts make our lab the only lab in the country that can actually measure these isotopic variations,” says Chakrabarti. In addition to calcium isotopes, the team also analysed the concentration of other elements like strontium, magnesium, and barium, and their ratios in the same sample, and collated the data together to tease out a more accurate value for seawater temperature within a range of plus or minus one degree Celsius when compared to the actual value.

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Images of salts of elements being ionized for isotopic measurements in a Thermal Ionization Mass Spectrometer hosted in Ramananda Chakrabarti’s lab at the Centre for Earth Sciences, IISc (Photos: Ramananda Chakrabarti)

Organisms that live in the ocean are extremely sensitive to temperatures. A two-degree temperature rise could lead to the extinction of several species. In addition, because the atmosphere and the ocean are “on talking terms”, says Chakrabarti, a lot of the carbon dioxide in the atmosphere eventually dissolves into the ocean, and this ability to dissolve carbon dioxide is also linked to seawater temperature – the lower the temperature, the more carbon dioxide is trapped. Just like a carbonated drink that loses its fizz as it warms up, the ocean loses its ability to hold carbon dioxide as it gets warmer.

Because of the close correlation they found between calcium isotope ratios and temperatures, the authors are confident that their approach can now be used on fossilised samples. Mapping early seawater temperatures is important to better understand Earth’s history, they say. “What happened back in time,” says Chakrabarti, “is key to our understanding of what will happen in the future.”

REFERENCE:

Mondal S, Chakrabarti R, Ghosh P, A multi-proxy (δ44/40Ca, Sr/Ca, and Δ47) study of fish otoliths for determination of seawater temperature, Chemical Geology (2022).

https://doi.org/10.1016/j.chemgeo.2022.120950

CONTACT:

Ramananda Chakrabarti
Associate Professor
Centre for Earth Sciences (CEaS), Indian Institute of Science (IISc)
Email: ramananda@iisc.ac.in
Phone: +91-80-2293-3003

NOTE TO JOURNALISTS:

a) If any of the text in this release is reproduced verbatim, please credit the IISc press release.

b) For any queries about IISc press releases, please write to news@iisc.ac.inor pro@iisc.ac.in.

IISc inks MoU with Mr Prashanth Prakash to set up geriatrics wing

11th August 2022

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The Indian Institute of Science (IISc) today entered into an MoU with Mr Prashanth Prakash, founding partner of Accel and Chairman of Karnataka’s Startup Vision Group, to set up a geriatrics wing as part of IISc’s upcoming Bagchi-Parthasarathy hospital.

The Shantha & Prakash Geriatrics Wing is expected to be operational by the start of 2025. The wing will be equipped with state-of-the-art facilities in geriatrics to support academic and research programmes, and to enable PG students to undergo world-class training. It will take forward the IISc Medical School’s objective of integrating science, engineering and medicine under a single umbrella to produce a new generation of physician-scientists.

Commenting on the occasion, Prof Govindan Rangarajan, Director, IISc, said, “We thank Mrs & Mr Prashanth for their generosity in establishing this important geriatrics wing. Despite advances in integrative medicine, long-term care including post-acute care of the elderly is a universal challenge. With increasing life expectancy, it is also crucial to ensure healthy aging of the population. These multiple challenges require an interdisciplinary approach for effective care and we are sure that the Shantha & Prakash Geriatrics Wing will fuel and drive the much-needed innovation in this space.”

Mr Prashanth said, “Proactively managing age-related comorbidities will help prolong the period during which individuals can enjoy maximum physical and cognitive independence. Through physician-scientists, there is immense potential for the Institute to bring advancements in Gerosciences and Healthy-aging to help people live their most extended, healthiest lives possible.”

Contact:

IISc Office of Communications | news@iisc.ac.in

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