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Sushant Kumar

Mumbai
As seen in: Medium, ETAuto, Nature, The Economic Times, The Times of India, Wiley Online Library, Journal of Retailing and Consumer Services, MDPI, Taylor & Francis Online, The Indian Express and
Founder and CEO of Kalpā Impact. Interested in impact investing, philanthropy, sustainable development, tech for good. Views personal.

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Articles

Surface-dominant transport in Weyl semimetal NbAs nanowires for next-generation interconnects

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By Peter Orchard, Yeryun Cheon, Alex C. Sternisha, Mehrdad T. Kiani, Yi-Hsin Tu, Sushant Kumar, Nghiep Khoan Duong, Jiyoung Kim, Lingcheng Kong, Quynh P. Sam, Han Wang, Satya Kushwaha, Nicholas Ng, Seng Huat Lee, Chen Li, Amelia Schaeffer, JACK COYLE, Dimitrios Koumoulis, Saif Siddique, Zhiqiang Mao, Gangtae Jin, Zhiting Tian, Ravishankar Sundararaman, Hsin Lin, Sam Kielar
| Science Magazine Verified
Editor’s summary Abstract Supplementary Materials References and Notes Information & Authors Metrics & Citations Check Access References Figures Tables Media Share Editor’s summary Nanowires of the topological Weyl semimetal niobium arsenide (NbAs) are three to four times as conductive as the bulk material. Cheon et al. used thermomechanical nanomolding to grow single-crystalline nanowires with diameters as small as 40 nanometers.
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How to Add Face Liveness Detection to Flutter in 5 Minutes

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By Sushant Kumar
| DEV Community
Spoofing attacks — where someone holds up a photo or plays a video to trick your face verification — are a real problem for mobile apps. In this post I'll show you how to add passive face liveness detection to a Flutter app in under 5 minutes using FaceNova SDK. What is passive liveness detection? Unlike active liveness (where the user has to blink, smile or turn their head), passive liveness works silently from a single frame. The user just looks at the camera — no instructions needed.
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AI’s English Problem—and Why We Should Care

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By Sushant Kumar, Ananya Mukherjee
| Tech Policy Press
Sushant Kumar and Ananya Mukherjee are external consultants working with Bhashini, India’s sovereign AI language infrastructure. Visitors during the India AI Impact Summit 2026 at Bharat Mandapam, in New Delhi, Monday, Feb. 16, 2026. (Ravi Choudhary/PTI via AP) Bhashini’s Delhi office was abuzz in the lead-up to February’s India AI Impact Summit. Building multilingual AI systems from the ground up is no easy task.
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