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Afzaal Qamar

Researcher at University of Michigan

Publications -  58
Citations -  1376

Afzaal Qamar is an academic researcher from University of Michigan. The author has contributed to research in topics: Piezoresistive effect & Gauge factor. The author has an hindex of 20, co-authored 53 publications receiving 1108 citations. Previous affiliations of Afzaal Qamar include Griffith University & Pakistan Institute of Engineering and Applied Sciences.

Papers
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Environment-friendly carbon nanotube based flexible electronics for noninvasive and wearable healthcare

Toan Dinh, +9 more
- 27 Oct 2016 - 
TL;DR: In this paper, a wearable thermal flow sensor for healthcare using lightweight, high strength, flexible CNT yarns as hotwires, pencil graphite as electrodes, and lightweight, recyclable and biodegradable paper as flexible substrates, without using any toxic chemicals.
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Thermoresistive Effect for Advanced Thermal Sensors: Fundamentals, Design Considerations, and Applications

Toan Dinh, +5 more
- 13 Jun 2017 - 
TL;DR: In this paper, the thermoresistive effect in metals and semiconductors has been thoroughly investigated, leading to the significant growth and successful demonstration of thermal-based sensors, such as temperature sensors, convective accelerometers and gyroscopes, and thermal flow sensors.
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Graphite on paper as material for sensitive thermoresistive sensors

Toan Dinh, +5 more
- 20 Aug 2015 - 
TL;DR: In this article, the thermoresistive properties of graphite on paper (GOP) were investigated and a negative temperature coefficient of resistance (TCR) from −2900 to −4400 ppm K−1 was observed for the GOP.
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Solvent-free fabrication of biodegradable hot-film flow sensor for noninvasive respiratory monitoring

Toan Dinh, +7 more
- 08 May 2017 - 
TL;DR: In this article, a low-cost, environment-friendly and wearable thermal flow sensor, which can be manufactured in-house using pencil graphite as a sensing hot film and biodegradable printing paper as a substrate, without using any toxic solvents or cleanroom facilities.
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Piezoresistive effect in p-type 3C-SiC at high temperatures characterized using Joule heating

Hoang-Phuong Phan, +7 more
- 28 Jun 2016 - 
TL;DR: The in situ method proposed in this study demonstrated that, the combination of the piezoresistive and thermoresistives effects can increase the gauge factor of p-type 3C-SiC to approximately 20% at 573 K, which could enhance the sensitivity of SiC based MEMS mechanical sensors.