Dr Divya Tiwari

Research Associate

DTiwari2Address:
Dr Divya Tiwari
Department of Automatic Control and Systems Engineering
University of Sheffield
Sheffield
S1 3JD
Tel: (+44) (0)114 222 5250
Email: d.tiwari@sheffield.ac.uk

Biography

Dr Tiwari is a Research Fellow working in the Digitisation Laboratory for Manufacturing within ACSE. Her work focuses on sensors and simulation for high value manufacturing processes.

Divya was awarded Daphne Jackson and Royal Academy of Engineering Fellowship in 2013 for the development of novel photonic sensors for industrial applications. She has previously worked in the Centre for Engineering Photonics at Cranfield University to work in the area of development of photonic sensors for manufacturing and automotive applications. Divya holds a PhD (2010) awarded by Cranfield University. Before joining academia, Divya worked in electronics industry on aerospace and automotive applications in the UK.

  

Research Interests

Dr Tiwari’s research interests include:

  • Sensors for manufacturing applications
  • Simulation of manufacturing processes
  • Material characterisation techniques
  • Digital Manufacturing

Grants

Research Fellowship awarded by the Royal Academy of Engineering and the Daphne Jackson Trust 2013-2015 (PI)

EPSRC Doctoral Training Partnership CASE Conversion award with Airbus in 2018 (Researcher-CoI), Value £54,000.

PhD Projects Supported

Part-tracking and digital twin for manufacturing processes.

Journal Publications

Tiwari D., Mullaney K., James S. W., Tatam R. P., Korposh S., Lee S.W., (2017) An ammonia sensor based on Lossy Mode Resonances on a tapered optical fibre coated with porphyrin-incorporated titanium dioxide, Sensors & Actuators: B. Chemical, vol. 242, 645-652.

Tiwari D. and Dunn S. (2012). Photochemical reduction of Al3+ to Al0 over a ferroelectric photocatalyst – LiNbO3, Materials Letters, vol. 79, 18-20.

Tiwari D. and Dunn S. (2009). Photochemistry on a polarisable semi-conductor: what do we understand today? Journal of Materials Science, vol. 44, issue 19, 5063-5079.

Tiwari D. and Dunn S. (2009). Influence of annealing on the photochemical deposition of silver onto PZT thin films under UV irradiation, Journal of the European Ceramic Society, vol. 29, issue 13, 2799-2805.

Tiwari D. and Dunn S. and Zhang Q. (2009). Impact of Zr/Ti ratio in the PZT on the photoreduction of silver nanoparticles, Materials Research Bulletin, vol. 44, issue 6, 1219-1224.

Dunn S and Tiwari D. (2008). Influence of ferroelectricity on the photoelectric effect of LiNbO3, Applied Physics Letters, vol. 93, 092905-1.

Dunn S, Tiwari D., Jones P. and Gallardo D. (2007). Insights into the relationship between inherent materials properties of PZT and photochemistry for the development of nanostructured silver, Journal of Materials Chemistry, vol. 17, 4460-4463.

Conference Outputs

L Lopez-Davalos, A Liaqat, W Hutabarat, D Tiwari, A Tiwari. (2018) Investigating rate increase in aerospace factory by simulation of material flow operations. Proc. REV2018, 15th International Conference on Remote Engineering and Virtual Instrumentation, Germany.

Tiwari D., James S. W., Tirovic M., Tatam R. P. (2018) Experimental investigation of disc/pad interface pressure distributions using optical sensors. Proc. EUROBRAKE 2018.

Major B., Tiwari D., James S. W., Tirovic M., Tatam R. P. (2017) Fibre Bragg Gratings based strain sensors for the analysis of pressure distribution at a disc brake interface. Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232O (April 23, 2017); doi:10.1117/12.2263455 (Nominated for the best paper award).

Hallett J. S., Partridge M., Tiwari D., James S. W., Farewell T., Hallett S.H., Tatam R. P. (2017) Soil moisture content measurement using optical fiber long period gratings. Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232J (April 23, 2017); doi:10.1117/12.2263427;

Tiwari D., Mullaney K., James S. W., Tatam R. P., Korposh S., Lee S.W. (2016) Ammonia sensing using lossy mode resonances in a tapered optical fibre coated with porphyrin-incorporated titanium dioxide Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99161H (May 30, 2016); doi:10.1117/12.2236926

Tiwari D., James S. W., Tatam R. P., Korposh S., Lee S.W. (2015) A high-sensitivity chemical sensor based on titania coated optical-fiber long period grating for ammonia sensing in water, Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96552H (July 1, 2015); doi:10.1117/12.2184260

Tiwari D., (2016) Poster presented at 25 GASG-Gas Analysis and Sensing Group Colloquium on Ammonia sensing using lossy mode resonances in a tapered optical fibre coated with porphyrin-incorporated titanium dioxide.

Tiwari D., James S. W., Tatam R. P (2015) Poster presented at 2015 Research Conference, Daphne Jackson Trust on A high-sensitivity chemical sensor based on titania coated long period gratings for ammonia sensing in water.

Tiwari D., James S. W., Tatam R. P (2013) Poster presented at 2013 Research Conference, Daphne Jackson Trust on Optical fibre long period grating sensors for monitoring of ammonia. (Received Highly Commendable Poster Award).

Tiwari D. and Dunn S. (2007) Poster presented at ‘Electro-active Materials 2007’ Conference held at Cranfield, UK on ‘Growth of Ag nanoparticles on PZT thin films under UV irradiation: Impact of defect concentration’ (Best Poster Award).

Tiwari D., Dunn S. and Zhang Q. (2007) Presentation at Ferroelectrics UK 2007 on ‘Growth of silver nanoparticles on domain patterned PZT’.