Fuzhou University (Qishan Campus), School of Mechanical Engineering and Automation, South Block - Room 308, Minhou County, Fuzhou City, Fujian Province, Zip code: 350108.
Dr. Walter Nsengiyumva is an experienced engineer and researcher with proficient technical skills and strong educational background in the field of electrical, mechanical, and mechatronic engineering. Dr. Nsengiyumva graduated with his first bachelor of Engineering in Electrotechnology and Industrial Informatics from the Institut des Sciences et des Technologies Industrielles de Brazzaville in 2008 (Brazzaville, Republic of Congo), and his second Bachelor of Technology in Electrical Engineering from Durban University of Technology in 2014 (Durban, Republic of South Africa). In 2015, Dr. Nsengiyumva was awarded the Chinese Government Scholarship to pursue his Master's in Mechanical Engineering at Fujian Agriculture and Forestry University (Fuzhou, P. R. China) and graduated in 2018. In the same year, he obtained the Fujian Provincial Government Scholarship to pursue his doctoral studies at Fuzhou University and graduated with his Ph.D. in Mechatronic Engineering in 2022. A career spanning over 10 years within the academic and industrial sectors, Dr. Nsengiyumva has expertise in research and development, mechanical engineering, electrical engineering, control systems, automation, higher education, project management, intelligent sensing, systems diagnosis, and consulting. Dr. Nsengiyumva is currently an Associate Professor of Mechatronic Engineering at Fuzhou University in the School of Mechanical Engineering, a member of the Fujian Key Laboratory of Terahertz Functional Devices and Intelligent Sensing and his research interests include intelligent sensing and diagnosis, nondestructive testing and evaluation, structural health monitoring, optics and terahertz spectral imaging systems, mechanics of composites materials and structures, signal/image processing and pattern recognition for diagnosis and prognosis, renewable energy and energy management systems. As part of his scientific activities, Dr. Nsengiyumva has published several papers in peer-reviewed international journals, given several presentations at both national and international conferences, and is constantly a referee of international journals on the topics of composite materials, structural mechanics, nondestructive testing, and structural health monitoring. Dr. Nsengiyumva is also a guest editor of a Special Issue entitled “Symmetry in Structural Health Monitoring and Nondestructive Testing” in an SCI Journal “Symmetry” and a member of the organizing committee of several national and international conferences.
September 2018 - June 2022: Ph.D. in Mechatronic Engineering, Fuzhou University, Fuzhou - Fujian, People’s Republic of China.
Thesis: Terahertz time-domain spectroscopy for nondestructive characterization and evaluation of fiber-reinforced composites.
Sept. 2015 - Jun. 2018: Master of Engineering in Mechanical Engineering, Fujian Agriculture and Forestry University, Fuzhou - Fujian, People’s Republic of China.
Thesis: Modeling, simulation, and implementation of the pH neutralization process plant using an intelligent controller.
June 2010 - December 2014: Bachelor of Technology in Electrical Engineering, Durban University of Technology, Durban, Republic of South Africa.
September 2006 - June 2009: Bachelor of Engineering Electrotechnology and Industrial Informatics, Institut des Sciences et des Technologies Industrielles, Brazzaville - Republic of Congo.
Awards and scholarships
September 2018 - June 2022: Fujian Provincial Scholarship - Fujian, People’s Republic of China.
The scholarship was provided to me while pursuing my Ph.D. degree at Fuzhou University, Fuzhou - Fujian, People’s Republic of China.
September 2015 - June 2018: Chinese Government Scholarship Council (CSC) - Beijing, People’s Republic of China. The scholarship was provided to me while pursuing my Master's degree at Fujian Agriculture and Forestry University, Fuzhou - Fujian, People’s Republic of China.
June 2010 - December 2014: International Centre for theoretical physics (ICTP) - Trieste, Italy.
The scholarship was provided to me while pursuing my Bachelor of Technology in Electrical engineering at Durban University of Technology, Durban, Republic of South Africa.
October 2022 – Present: Associate professor at Fuzhou University, school of mechanical engineering and automation.
March 2017 - June 2018: Assistant lecturer at Fujian Agriculture and Forestry University - People’s Republic of China
February 2014 - September 2015: Supplementary Instructor and Control Systems Lab Technician at Durban University of Technology
Jan. 2013 - Jan. 2014: Junior Engineer at Analyzers Online CC, Germiston, South Africa.
June 2012 - Jane 2013: Junior Engineer at Shell and BP South African Petroleum Refineries (Pty), Durban, Republic of South Africa.
Jane 2004 - December 2005: Secondary school teacher at College Intwali Mwezi, Naymnasheke, Republic of Rwanda.
My main areas of research include mechanical engineering, control systems, automation, intelligent sensing, and systems diagnosis with a specific focus on:
§ Intelligent sensing and diagnosis
§ Nondestructive testing and evaluation (NDT&E)
§ Structural health monitoring (SHM)
§ Optics and terahertz spectral imaging systems
§ Mechanics of composites materials and structures
§ 3D printing
§ Signal/image processing and pattern recognition for diagnosis and prognosis
§ Renewable energy and energy management systems
§ Solar tracking systems and wind turbine blades
January 2023 – October 2023: Guest editor: Special Issue "Symmetry in Structural Health Monitoring (SHM) and Nondestructive Testing (NDT)"
December 8-10, 2023: Technical Committee Member of 2023 the 4th International Symposium on Automation, Mechanical, and Design Engineering (SAMDE 2023).
May 26-28, 2023: Technical Committee Member of the 2023 International Conference on Aerospace, Mechanical, and Mechatronic Engineering (CAMME 2023)
June 24-25, 2018: Speaker at the 2018 3rd international conference on electrical, automation, and mechanical engineering (EAME 2018).
 A. Mahmoud Makin, W. Nsengiyumva, G. Girma Bizuneh, Z. Xu, and G. Zhang, “Stabilizing agents assisted construction of monometallic self-supporting Palladium NCs with ultrafine nanostructures and rich surface area for highly efficient direct ethanol fuel cell,” Journal of Electroanalytical Chemistry, p. 117297, Feb. 2023, doi: 10.1016/j.jelechem.2023.117297. (SCI Indexed, IF: 4.598).
 W. Nsengiyumva, S. Zhong, M. Luo, and B. Wang, “Terahertz Spectroscopic Characterization and Thickness Evaluation of Internal Delamination Defects in GFRP Composites,” Chinese Journal of Mechanical Engineering, vol. 36, no. 1, p. 6, Jan. 2023, doi: 10.1186/s10033-022-00829-7. (SCI Indexed, IF: 2.964).
 X. Lin, B. Wang, C. Zhao, W. Nsengiyumva, S. Zhong, H. Chen, and D. Liu, “Durability of Viscoelastic Fibre Prestressing in a Polymeric Composite,” Polymers, vol. 15, no. 4, Art. no. 4, Jan. 2023, doi: 10.3390/polym15040811. (SCI Indexed, IF: 4.967).
 H. Chen, F. Yu, B. Wang, C. Zhao, X. Chen, Walter Nsengiyumva and Shuncong Zhong, “Elastic Fibre Prestressing Mechanics within a Polymeric Matrix Composite,” Polymers, vol. 15, no. 2, Art. no. 2, Jan. 2023, doi: 10.3390/polym15020431. (SCI Indexed, IF: 4.967)
 Z. Zhang, Y. Huang, S. Zhong, T. Lin, Y. Zhong, Q. Zeng, W. Nsengiyumva, Y. Yu, Z. Peng, “Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy,” Front. Mech. Eng., vol. 17, no. 4, p. 49, Dec. 2022, doi: 10.1007/s11465-022-0705-3. (SCI Indexed, IF: 4.063)
 W. Nsengiyumva, S. Zhong, L. Zheng, B. Wang, X. Lin, X. Fu, and Z. Peng, “Theoretical and experimental analysis of the dielectric properties of 3D orthogonal woven GFRP composites in the terahertz frequency range,” Optik, vol. 260, p. 169105, Jun. 2022, doi: https://doi.org/10.1016/j.ijleo.2022.169105. (SCI Indexed, IF: 2.84)
 J. Lin, S. Zhong, Q. Zhang, J. Zhong, W. Nsengiyumva, and Z. Peng, “Swept-Source Optical Coherence Vibrometer: Principle and Applications,” IEEE Trans. Instrum. Meas., vol. 71, pp. 1–9, 2022, doi: https://doi.org/10.1109/TIM.2022.3152238. (SCI Indexed, IF: 5.332)
 W. Nsengiyumva, S. Zhong, B. Wang, L. Zheng, Z. Zhang, Q. Zhang, J. Zhong, M. Luo, Z. Peng, “Terahertz spectroscopic study of optical and dielectric properties of typical electrical insulation materials,” Optical Materials, p. 111837, Dec. 2021, doi: https://doi.org/10.1016/j.optmat.2021.111837. (SCI Indexed, IF: 3.754)
 W. Nsengiyumva, S. Zhong, M. Luo, Q. Zhang, and J. Lin, “Critical insights into the state‐of‐the‐art NDE data fusion techniques for the inspection of structural systems,” Struct Control Health Monit, Sep. 2021, doi: https://doi.org/10.1002/stc.2857. (SCI Indexed, IF: 6.058)
 W. Nsengiyumva, S. Zhong, J. Lin, Q. Zhang, J. Zhong, and Y. Huang, “Advances, limitations and prospects of nondestructive testing and evaluation of thick composites and sandwich structures: A state-of-the-art review,” Composite Structures, vol. 256, pp. 112951–113002, Jan. 2021, https://doi.org/10.1016/j.compstruct.2020.112951. (SCI Indexed, IF: 6.603)
 K. C. Chang, N. Hagumimana, J. Zheng, G. N. O. Asemota, J. D. D. Niyonteze, W. Nsengiyumva, A. Nduwamungu, and S. Bimenyimana, “Standalone and Minigrid-Connected Solar Energy Systems for Rural Application in Rwanda: An In Situ Study,” International Journal of Photoenergy, vol. 2021, pp. 1–22, Oct. 2021, doi: https://doi.org/10.1155/2021/1211953. (SCI Indexed, IF: 2.535)
 N. Hagumimana, J. Zheng, G. N. O. Asemota, J. D. D. Niyonteze, W. Nsengiyumva, A. Nduwamungu, and S. Bimenyimana, “Concentrated Solar Power and Photovoltaic Systems: A New Approach to Boost Sustainable Energy for All (Se4all) in Rwanda,” International Journal of Photoenergy, vol. 2021, 2021, doi: https://doi.org/10.1155/2021/5515513. (SCI Indexed, IF: 2.535)
 J. D. D. Niyonteze, F. Zou, G. N. O. Asemota, W. Nsengiyumva, N. Hagumimana, L. Huang, A. Nduwamungu, and S. Bimenyimana, “Applications of Metaheuristic Algorithms in Solar Air Heater Optimization: A Review of Recent Trends and Future Prospects,” International Journal of Photoenergy, vol. 2021, 2021, doi: https://doi.org/10.1155/2021/6672579. (SCI Indexed, IF: 2.535)
 Q. Zhang, S. Zhong, J. Lin, Y. Huang, W. Nsengiyumva, W. Chen, M. Luo, J. Zhong, Y. Yu, Z. Peng, S. Cheng, “Anti-noise frequency estimation performance of Hanning-windowed energy centrobaric method for optical coherence velocimeter,” Optics and Lasers in Engineering, vol. 134, p. 106250, 2020, doi: https://doi.org/10.1016/j.optlaseng.2020.106250. (SCI Indexed, IF: 5.67)
 M. Luo, S. Zhong, L. Yao, W. Tu, W. Nsengiyumva, and W. Chen, “Thin thermally grown oxide thickness detection in thermal barrier coatings based on SWT-BP neural network algorithm and terahertz technology,” Appl. Opt., AO, vol. 59, no. 13, pp. 4097–4104, May 2020, doi: https://doi.org/10.1364/AO.392748. (SCI Indexed, IF: 1.905)
 P. Zhang, S. Zhong, J. Zhang, J. Ding, Z. Liu, Y. Huang, N. Zhou, W. Nsengiyumva, and T. Zhang, “Application of Terahertz Spectroscopy and Imaging in the Diagnosis of Prostate Cancer,” Curr. Opt. Photon., vol. 4, no. 1, pp. 31–43, Feb. 2020, doi: https://doi.org/10.1364/COPP.4.000031. (SCI Indexed, IF: 0.66)
 N. Zhou, S. Zhong; J. Lin, M. Luo, W. Nsengiyumva, Z. Peng, Y. Yu, “Acoustic-excitation optical coherence vibrometer for real-time microstructure vibration measurement and modal analysis,” IEEE Trans. Instrum. Meas., vol. 69, no. 9, pp. 7209–7217, 2020, doi: https://doi.org/10.1109/TIM.2020.2975453. (SCI Indexed, IF: 5.332)
 W. Wang, M. Hall-Beyer, C. Wu, W. Fang, and W. Nsengiyumva, “Uncertainty Problems in Image Change Detection,” Sustainability, vol. 12, no. 1, p. 274, 2020, doi: https://doi.org/10.3390/su12010274. (SCI Indexed, IF: 3.899).
 W. Nsengiyumva, S. G. Chen, L. Hu, and X. Chen, “Recent advancements and challenges in Solar Tracking Systems (STS): A review,” Renewable and Sustainable Energy Reviews, vol. 81, pp. 250–279, Jan. 2018, doi: https://doi.org/10.1016/j.rser.2017.06.085. (SCI Indexed, IF: 16.799)
 W. Nsengiyumva and X. Chen, “Design and implementation of a novel self-adaptive fuzzy logic controller for a pH neutralization process,” presented at the 2018 3rd international conference on electrical, automation, and mechanical engineering (EAME 2018), 2018. doi: https://doi.org/10.2991/eame-18.2018.19. (EI-SCOPUS Indexed)
 Y. Xu, H. Wang, and W. Nsengiyumva, “Analysis of the Uniformity of Light in a Plant Growth Chamber,” in 2018 4th International Conference on Universal Village (UV), Boston, MA, USA, Oct. 2018, pp. 1–7. doi: https://doi.org/10.1109/UV.2018.8642131. (EI-SCOPUS Indexed)
 B. Long, S. Lin, W. Nsengiyumva, and L. Lin, “Study of the characteristics of ohmic contact between metal electrodes and Cu2ZnSnS4 thin films,” Micro & Nano Letters, vol. 13, no. 1, pp. 27–30, Jan. 2018, doi: https://doi.org/10.1049/mnl.2017.0274. (SCI Indexed, IF: 0.98)
April 2, 2022: S. Zhong and W. Nsengiyumva, Nondestructive Testing and Evaluation of Fiber-Reinforced Composite Structures. Springer Singapore, 2022. https://doi.org/10.1007/978-981-19-0848-4. (Jointly published by Springer and Science Press and supported by National Science and Technology Academic Publications Fund)