ALI NOUR EL HAJJ | Engineering | Research Excellence Award

Research Excellence Award

Ali Nour El Hajj
American University of Beirut, Lebanon

Ali Nour El Hajj
Researcher Ali Nour El Hajj
Affiliation American University of Beirut
Country Lebanon
Scopus ID 7006586247
Documents 168
Citations 1,511
h-index 21
Subject area Engineering
Event International Academic Excellence Awards
ORCID 0000-0003-2865-6290

Ali Nour El Hajj is a researcher affiliated with the American University of Beirut in Lebanon whose reported scholarly profile includes work in engineering, electromagnetic measurement, dielectric characterization, and technology-oriented research. The Research Excellence Award profile recognizes research activity and publication contributions associated with this subject area. The bibliographic information supplied for this page highlights studies on estimating material properties through electromagnetic measurements and digitizing electrocardiogram records for potential computational analysis. [1]

Abstract

This profile summarizes selected publications and researcher metrics supplied for Ali Nour El Hajj in support of a Research Excellence Award article. The highlighted works address non-contact methods for determining dielectric properties, calibration-free material characterization, and digitization of paper electrocardiogram records. These topics demonstrate the potential connection between engineering measurement techniques and practical applications in materials analysis and health technology. The publication details and identifiers are provided through the linked scholarly records. [2]

Keywords

  • Engineering research
  • Dielectric characterization
  • Electromagnetic measurement
  • Horn antenna measurements
  • Biomedical signal digitization
  • Research excellence

Introduction

Engineering research often combines theoretical modeling, experimental measurement, and data processing to solve practical problems. In electromagnetic characterization, accurate estimates of relative permittivity and dielectric constant can support the study and evaluation of materials. In biomedical engineering, digitizing historical ECG records can make waveform information more accessible for analysis and future machine-learning workflows. The supplied publications connect these broad research directions through measurement methods and computationally supported applications. [3]

Research Profile

The profile information supplied for El Hajj lists 168 documents, 1,511 citations, and an h-index of 21. These bibliometric indicators describe publication and citation activity as reported in the provided data; they can vary as indexing services update their records. The Scopus author profile is the primary destination for checking the current indexed record, while the ORCID profile provides a persistent researcher identifier. [1]

Research Contributions

The selected engineering publications focus on approaches for estimating dielectric properties from reflected signals and near-field antenna measurements. Such methods are relevant to material evaluation where reliable characterization is needed. A separate publication on paper-based ECG digitization addresses the conversion of printed clinical waveforms into digital information, potentially enabling subsequent computational processing. These descriptions summarize the stated topics and do not imply that every method is universally applicable without validation.

Publications

  1. “Monostatic Free-Space Method for Relative Permittivity Determination Using Horn Antenna Near-Field Measurements.” IEEE Antennas and Wireless Propagation Letters, April 2024. [2]
  2. “A Calibration-Free Method for the Dielectric Constant Calculation of Low-Loss Materials.” IEEE Transactions on Instrumentation and Measurement, 2021. [3]
  3. “High Precision Digitization of Paper-Based ECG Records: A Step Toward Machine Learning.” IEEE Journal of Translational Engineering in Health and Medicine, 2019. [4]
  4. “Breaking Stress Criterion That Changes Everything We Know about Materials Failure.” Practice Periodical on Structural Design and Construction, 2023. Bibliographic details supplied; citation count was listed as zero in the provided record.
  5. “Dielectric Constant Estimation Using Calibration-Free Reflected Voltage Measurements.” Conference paper, 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2022. [5]

Research Impact

The selected work illustrates potential value in measurement reliability, material characterization, and the digitization of biomedical records. The reported citation and h-index figures offer one view of scholarly visibility, but they should be interpreted alongside research quality, reproducibility, practical relevance, and independent assessment. No single bibliometric measure fully represents the influence or significance of an individual research contribution.

Award Suitability

The Research Excellence Award profile places emphasis on the supplied publication record and engineering research themes. The listed papers provide concrete examples of scholarly activity spanning electromagnetic techniques and applied data processing. Final award decisions and eligibility should be determined by the organizing body’s published criteria and verification of the researcher’s bibliographic information.

Conclusion

Ali Nour El Hajj’s supplied profile presents a body of engineering-related research that includes dielectric measurement methods and biomedical record digitization. The listed publications and reported metrics provide a starting point for reviewing this work. Readers should consult the linked DOI records, Scopus author page, and ORCID profile for authoritative bibliographic details and the most current researcher information.

References

  1. Elsevier. (n.d.). Scopus author details: Ali Nour El Hajj, Author ID 7006586247. Scopus.
    https://www.scopus.com/authid/detail.uri?authorId=7006586247
  2. “Monostatic Free-Space Method for Relative Permittivity Determination Using Horn Antenna Near-Field Measurements.” (2024). IEEE Antennas and Wireless Propagation Letters.
    https://doi.org/10.1109/LAWP.2024.3355478
  3. “A Calibration-Free Method for the Dielectric Constant Calculation of Low-Loss Materials.” (2021). IEEE Transactions on Instrumentation and Measurement.
    https://doi.org/10.1109/TIM.2020.3011765
  4. “High Precision Digitization of Paper-Based ECG Records: A Step Toward Machine Learning.” (2019). IEEE Journal of Translational Engineering in Health and Medicine.
    https://doi.org/10.1109/JTEHM.2019.2949784
  5. “Dielectric Constant Estimation Using Calibration-Free Reflected Voltage Measurements.” (2022). 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting Proceedings. Bibliographic details as supplied.
  6. ORCID. (n.d.). Ali Nour El Hajj researcher identifier record.
    https://orcid.org/0000-0003-2865-6290

Qinnan Chen | Engineering | Best Researcher Award

Assoc. Prof. Dr. Qinnan Chen | Engineering | Best Researcher Award

Assoc. Prof. Dr. Qinnan Chen, Xiamen University, China

Dr. Qinnan Chen is an Associate Professor at the Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, China. With a Ph.D. in Optical Engineering from Tianjin University, Dr. Chen specializes in cutting-edge research in light-matter interactions, micro/nano-structure evolution, and multi-physical perception technologies. His work is at the forefront of extreme-environment photoelectric sensing and micro-nano manufacturing for aerospace and renewable energy sectors. Over his academic career, Dr. Chen has led prestigious national and provincial research projects and published prolifically in top-tier journals. His innovations in sensor design and microfabrication have garnered significant citations, demonstrating a high impact on the field. As a senior member of multiple scientific societies and an active editor, he contributes broadly to the scientific community. Dr. Chen’s commitment to interdisciplinary excellence continues to inspire emerging scholars and drive technological breakthroughs in advanced engineering systems.

Profile

Scopus

Google Scholar

🌟 Assessment of Dr. Qinnan Chen, Ph.D. – Suitability for the Research for Best Researcher Award

Dr. Qinnan Chen, currently serving as an Associate Professor at the Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, exemplifies the caliber of an ideal candidate for the Research for Best Researcher Award. His career reflects sustained excellence in micro/nano-scale science and technology, particularly in the areas of photoelectric sensing, micro-nano manufacturing, and extreme-environment sensor applications. With over 1,500 citations and an impressive H-index of 26, his scientific influence and research productivity are significant.

Dr. Chen’s academic trajectory—from Ph.D. in Optical Engineering to postdoctoral and faculty appointments—demonstrates a commitment to innovation and interdisciplinary application. His work under China’s National Natural Science Foundation and Major Provincial Science and Technology Projects speaks to both the national and regional significance of his research. Furthermore, his active role in courses related to electrical engineering, optics, and nano-manufacturing shows a commendable dedication to cultivating future researchers.

🎓 Education 

Dr. Qinnan Chen received his Ph.D. in Optical Engineering from Tianjin University in 2015. His doctoral research laid a robust foundation in photonics, fiber sensing, and optical instrumentation, equipping him with advanced theoretical and practical skills in nano-optics and sensor systems. He previously earned his bachelor’s degree in Optoelectronic Information Science and Engineering through a joint program between Tianjin University and Nankai University in 2010. This program emphasized photonics, electronics, and material sciences, shaping his early interest in micro/nano systems and their applications. The multidisciplinary training Dr. Chen acquired has been instrumental in his ability to bridge engineering with materials science, enabling him to pursue high-impact research in extreme-environment sensing and manufacturing. His academic pathway reflects a strong emphasis on precision instrumentation, smart materials, and advanced fabrication technologies, forming the backbone of his current innovative work in high-temperature sensors and aerospace micro-devices.

💼 Professional Experience 

Dr. Qinnan Chen currently serves as Associate Professor at Xiamen University (2023–Present), where he continues his groundbreaking research on extreme-environment sensors and micro-nano devices. Prior to this role, he was an Assistant Professor (2018–2023) and earlier, a Postdoctoral Fellow (2015–2018) at the same university. His academic journey is rooted in advancing microfabrication methods and multi-functional sensors for aerospace and energy applications. Dr. Chen has been the principal investigator on major national grants including projects from the National Natural Science Foundation of China and the National Key R&D Program. He also holds various part-time academic roles, such as Editor for Nanotechnology and Precision Engineering and Technical Observer in national standardization committees. Alongside teaching core engineering courses, he actively mentors undergraduate and postgraduate students. Dr. Chen’s leadership in research and education is helping shape the next generation of micro-nano engineers and driving the future of intelligent sensing technology.

🏅 Awards and Recognition 

Dr. Qinnan Chen has received multiple prestigious awards recognizing his contributions to engineering innovation and education. Notably, he was honored with the First Prize for Science and Technology Progress of Fujian Province (2022) and Second Prize for Science and Technology Progress of Xiamen City (2020). He earned the Second Prize for Outstanding Academic Papers in Natural Sciences in Fujian Province (2020), acknowledging his research excellence. Dr. Chen was nominated for the 2022 MINE Outstanding Young Scientist Award and won Second Prize in Fujian Province’s Young Teachers’ Electrical Engineering Competition (2023). As a high-level talent recognized by both Fujian Province and Xiamen City, he is deeply engaged in national and provincial research initiatives. He is a senior member of the Chinese Micro-Nano Technology Society, the Chinese Optical Society, and more. His accolades reflect both scholarly distinction and leadership in China’s evolving engineering landscape.

🌍 Research Skills On Engineering

Dr. Qinnan Chen’s research expertise lies in light-matter interaction, property-structure evolution, multi-physical perception, and conformal microfabrication. He has developed state-of-the-art polymer-derived ceramic sensors for high-temperature applications, with successful implementations in aerospace and new energy systems. His skillset spans 3D printing of ceramic thermistors, thin-film strain and heat flux sensors, and direct ink writing of nanomaterials. He exhibits mastery in extreme-environment testing, plasma-based devices, and micro-nano manufacturing. As a corresponding author of numerous high-impact publications, he merges theory and application, consistently pushing boundaries in sensing technologies. Dr. Chen is adept at managing interdisciplinary projects across materials science, optics, mechanical engineering, and thermal systems. His research continues to advance China’s strategic capabilities in smart sensing and microscale device innovation. With over 1500 citations and an h-index of 26, he exemplifies excellence in high-impact engineering research.

📖   Publication Top Notes

  • A high-efficiency multiple events discrimination method in optical fiber perimeter security system
    Authors: K Liu, M Tian, T Liu, J Jiang, Z Ding, Q Chen, C Ma, C He, H Hu, X Zhang
    Journal of Lightwave Technology, 33 (23), 4885-4890
    Citations: 84 | Year: 2015

  • An elimination method of polarization-induced phase shift and fading in dual Mach–Zehnder interferometry disturbance sensing system
    Authors: Q Chen, T Liu, K Liu, J Jiang, Z Ding, L Zhang, Y Li, L Pan, C Ma
    Journal of Lightwave Technology, 31 (19), 3135-3141
    Citations: 73 | Year: 2013

  • 3D printed microfluidic chip for multiple anticancer drug combinations
    Authors: X Chen, H Chen, D Wu, Q Chen, Z Zhou, R Zhang, X Peng, YC Su, D Sun
    Sensors and Actuators B: Chemical, 276, 507-516
    Citations: 63 | Year: 2018

  • An improved positioning algorithm with high precision for dual Mach–Zehnder interferometry disturbance sensing system
    Authors: Q Chen, T Liu, K Liu, J Jiang, Z Shen, Z Ding, H Hu, X Huang, L Pan, …
    Journal of Lightwave Technology, 33 (10), 1954-1960
    Citations: 60 | Year: 2015

  • Note: Improving spatial resolution of optical frequency-domain reflectometry against frequency tuning nonlinearity using non-uniform fast Fourier transform
    Authors: Z Ding, T Liu, Z Meng, K Liu, Q Chen, Y Du, D Li, XS Yao
    Review of Scientific Instruments, 83 (6)
    Citations: 56 | Year: 2012

  • Cryogenic temperature measurement using Rayleigh backscattering spectra shift by OFDR
    Authors: Y Du, T Liu, Z Ding, Q Han, K Liu, J Jiang, Q Chen, B Feng
    IEEE Photonics Technology Letters, 26 (11), 1150-1153
    Citations: 55 | Year: 2014

  • High-temperature electrical properties of polymer-derived ceramic SiBCN thin films fabricated by direct writing
    Authors: C Wu, X Pan, F Lin, Z Cui, X Li, G Chen, X Liu, Y He, G He, Z Hai, Q Chen, …
    Ceramics International, 48 (11), 15293-15302
    Citations: 49 | Year: 2022

  • TiB₂/SiCN thin-film strain gauges fabricated by direct writing for high-temperature application
    Authors: C Wu, X Pan, F Lin, Z Cui, Y He, G Chen, Y Zeng, X Liu, Q Chen, D Sun, …
    IEEE Sensors Journal, 22 (12), 11517-11525
    Citations: 46 | Year: 2022

  • Direct write of a flexible high-sensitivity pressure sensor with fast response for electronic skins
    Authors: Y Luo, D Wu, Y Zhao, Q Chen, Y Xie, M Wang, L Lin, L Wang, D Sun
    Organic Electronics, 67, 10-18
    Citations: 44 | Year: 2019

  • Polymer-derived ceramic thin-film temperature sensor
    Authors: Z Cui, X Li, X Pan, G Chen, Y Li, J Lin, C Wu, X Liu, T Yang, Z Hai, G He, …
    Sensors and Actuators A: Physical, 332, 113038
    Citations: 43 | Year: 2021