Charly Julien Nyobe | Civil Engineering | Best Paper Award

Dr. Charly Julien Nyobe | Civil Engineering | Best Paper Award

Chercheur at Ecole Normale Supérieure d’Enseignement Technique de Douala-Cameroun, Cameroon.

Charly Julien Nyobe 🎓 is a dedicated Cameroonian researcher and educator specializing in civil engineering, biomechanics, and material sciences. Born on March 11, 1985, in Garoua-Boulaï, he has pursued an extensive academic career, earning two PhDs and multiple engineering degrees. With a passion for structural mechanics, wood engineering, and impact mechanics, he actively contributes to cutting-edge research on sustainable construction materials. Currently, he teaches at the University of Douala and collaborates on international projects. An expert in statistical analysis, finite element methods, and material characterization, Nyobe is committed to advancing engineering solutions for real-world challenges. 🚀📚

Professional Profile:

Scopus

ORCID

Google Scholar

Suitability for the Award

Dr. Charly Julien Nyobe is a highly accomplished researcher in civil engineering, biomechanics, and material sciences, with extensive expertise in structural mechanics, wood engineering, and impact mechanics. His strong academic background, dual PhDs, and consistent research contributions demonstrate a deep commitment to advancing engineering knowledge, particularly in sustainable construction materials. His ability to bridge experimental, numerical, and theoretical methods in engineering makes him a strong contender for the Best Paper Award.

Education & Experience 📚

Doctorate (PhD) in Mechanical Engineering – Université Gustave Eiffel, France (2022 – Ongoing)
Doctorate (PhD) in Civil Engineering – École Nationale Supérieure Polytechnique de Yaoundé, Cameroon (2023)
Master’s in Civil Engineering – University of Douala, Cameroon (2015)
DIPET II (Master’s equivalent) in Civil Engineering – ENSET Douala, Cameroon (2011)
DIPET I (Bachelor’s equivalent) in Civil Engineering – ENSET Douala, Cameroon (2009)
DEUG in Computer Science – University of Yaoundé I, Cameroon (2006)
Baccalauréat in Mathematics & Physics – Lycée d’Obala, Cameroon (2003)

💼 Work Experience:
✔️ Lecturer – University of Douala (2018 – Present)
✔️ Visiting Lecturer – École Supérieure de La Salle (2018 – 2022)
✔️ Lecturer – Institute of Technology, Douala (2018 – 2020)
✔️ Civil Engineering Teacher – Lycée Polyvalent de Bonabéri (2012 – 2018)

Professional Development 🚀

Charly Julien Nyobe is constantly engaged in professional development to stay at the forefront of engineering innovations. In 2023, he trained in LS-Dyna at IUT Lyon 1, France, refining his expertise in impact simulation and finite element modeling. Additionally, he enhanced his scientific visualization skills through an Inkscape training at the University of Lyon. As a member of the GDR Science du Bois (France) since 2019, he actively participates in collaborative research, focusing on wood mechanics, structural engineering, and impact analysis. His interdisciplinary approach blends experimental, numerical, and theoretical methods for innovative engineering solutions. 🌍🛠️📊

Research Focus 🔬

Dr. Nyobe’s research is centered on civil engineering, wood mechanics, and impact mechanics. His work spans mechanical characterization of materials, structural resilience, and numerical modeling. He is passionate about sustainable construction, particularly the use of tropical woods in engineering applications. His studies explore Monte Carlo simulations, Weibull statistical models, and multi-scale mechanical classification of materials. He also delves into shock mechanics, investigating crash simulations and road safety barriers using advanced software like LS-Dyna. His research contributes to eco-friendly building solutions, aiming to optimize wood-based engineering materials for durability and resilience. 🌳🏗️⚙️

Awards & Honors 🏆

🏅 2023 – PhD in Civil Engineering with “Très Honorable” distinction 🏛️
🏅 2015 – Master’s degree with “Très Bien” distinction 🎓
🏅 2011 – DIPET II with “Très Bien” distinction 🏗️
🏅 2009 – DIPET I with “Très Bien” distinction 🏢
🏅 2006 – DEUG in Computer Science with “Assez Bien” distinction 💻
🏅 2003 – Baccalauréat in Mathematics & Physics with “Assez Bien” distinction 📏

Publication Top Notes

  • Moisture content-mechanical property relationships for two okan (Cylicodiscus gabunensis) substitutes

    • Authors: Nyobe Charly Julien, Oum Lissouck René, Nyobe Nicolas Stephane, Goumgang Tassile Rolande, Ayina Ohandja Louis Max
    • Publication Year: 2025
    • DOI: 10.1080/17480272.2025.2476659
  • Mode I cracking of three tropical species from Cameroon: the case of bilinga, dabema, and padouk wood

    • Authors: Rosmi Biyo’o, Achille Bernard Biwole, Rostand Moutou Pitti, Charly Julien Nyobe, Benoit Ndiwe, Emile Jonathan Onana, Emmanuel Yamb
    • Publication Year: 2024
    • DOI: 10.1080/17480272.2024.2314750
  • Effect of slope of grain on mechanical properties of some tropical wood species

    • Authors: Charly Julien Nyobe, Nicolas Stéphane Nyobe, Jean Bertin Nkibeu, René Oum Lissouck, Louis Max Ayina Ohandja
    • Publication Year: 2024
    • DOI: 10.1080/17480272.2024.2356047
  • A Review on Methods for Determining the Vibratory Damping Ratio

    • Authors: Nkibeu Jean Bertin, Charly Julien Nyobe, Moussa Sali, Madja Doumbaye Jerémie
    • Publication Year: 2023
    • DOI: 10.4236/ojce.2023.132015
  • Determination of the Vibratory Damping Ratio: A Methodological Review

    • Authors: Nkibeu Jean Bertin, Charly Julien Nyobe, Moussa Sali, Madja Doumbaye Jerémie
    • Publication Year: 2023
    • DOI: 10.9734/bpi/rader/v9/1804g
  • Variability of the mechanical strength of Congo Basin timbers

    • Author: Charly Julien Nyobe
    • Publication Year: 2021
    • DOI: 10.1080/17480272.2021.1912173

Nurul Musfirah Mazlan | Engineering | Best Researcher Award

Dr. Nurul Musfirah Mazlan | Engineering | Best Researcher Award

Lecturer At School Of Aerospace Engineering, Universiti Sains Malaysia, Malaysia

Dr. Nurul Musfirah Mazlan is a dedicated lecturer and researcher specializing in Aerospace Propulsion and Biofuels. She is currently a DS51 Lecturer at Universiti Sains Malaysia (USM), where she contributes to both teaching and research in the field of aerospace engineering. With a strong academic background and an extensive supervision portfolio of postgraduate and undergraduate students, she has played a vital role in advancing research related to sustainable aviation fuels and propulsion systems. Dr. Nurul Musfirah is also an active member of The American Society of Mechanical Engineers (ASME) and the Board of Engineers Malaysia (BEM), demonstrating her commitment to professional excellence. Her research focuses on alternative fuel technologies, nanoparticles as fuel additives, and propulsion system optimization, contributing significantly to green aviation efforts. Through her dedication to academia and innovation, she continues to make an impact in the aerospace engineering field.

Professional Profile

Education

Dr. Nurul Musfirah Mazlan obtained her Doctor of Philosophy (PhD) from Cranfield University, UK, specializing in Aerospace Propulsion and Biofuels. Her doctoral research focused on sustainable aviation fuels, particularly investigating the combustion performance of biofuels and alternative energy sources in aerospace applications. Prior to her PhD, she completed her undergraduate and master’s degrees in engineering, equipping her with a strong foundation in thermodynamics, propulsion systems, and fuel technologies. Her academic journey has been driven by a passion for developing environmentally friendly solutions for the aerospace industry, with a focus on reducing carbon emissions and improving fuel efficiency. Throughout her education, she has worked on multiple experimental and computational research projects, collaborating with international researchers to advance knowledge in alternative propulsion technologies. Her educational background has provided her with a solid expertise in combustion analysis, computational fluid dynamics (CFD), and aerospace fuel innovations.

Professional Experience

Dr. Nurul Musfirah Mazlan is currently serving as a Lecturer (DS51) at Universiti Sains Malaysia (USM), where she teaches undergraduate and postgraduate courses related to aerospace propulsion, thermodynamics, and fuel technologies. Over the years, she has actively supervised numerous PhD, MSc, and undergraduate students, guiding research in biofuels, propulsion systems, and nanotechnology applications in aerospace. While she does not have direct industry experience before joining USM, her work significantly contributes to practical aerospace applications through collaborations with academic and research institutions. In addition to teaching, she is involved in curriculum development, laboratory research, and mentoring students in experimental and computational studies. Her multidisciplinary approach allows her to bridge the gap between theory and real-world aerospace engineering challenges, making her a valuable academician and researcher in the field of sustainable aviation technology.

Research Interest

Dr. Nurul Musfirah Mazlan’s research focuses on Aerospace Propulsion, Biofuels, and Sustainable Energy Technologies. Her primary areas of interest include the development and performance analysis of biojet fuels, nano-additives for combustion efficiency, and solid rocket propulsion systems. She has conducted extensive research on Hydrotreated Vegetable Oil (HVO) blended with Jet-A fuel, evaluating its engine performance, emission characteristics, and sustainability. Additionally, her work explores computational fluid dynamics (CFD) simulations to study the interaction of alternative fuels with turbine blades and combustion systems. She is also interested in experimental and modeling approaches for improving rocket propulsion efficiency and reducing emissions in aircraft engines. By integrating nanotechnology with fuel research, Dr. Nurul Musfirah aims to develop greener and more efficient propulsion solutions for the aviation and aerospace industry, contributing to global efforts toward sustainable aviation fuel development.

Awards and Honors

Dr. Nurul Musfirah Mazlan has received several recognitions and honors for her contributions to aerospace propulsion and alternative fuel research. While specific awards are not listed in the provided details, her academic and research achievements are evident through her supervision of high-impact projects, international collaborations, and contributions to sustainable aviation research. Her role as a supervisor for multiple PhD and MSc students working on innovative propulsion technologies is a testament to her expertise and dedication to academia. Additionally, her involvement with The American Society of Mechanical Engineers (ASME) and the Board of Engineers Malaysia (BEM) highlights her professional standing and recognition in the engineering community. As she continues to push the boundaries of biofuel and propulsion research, she is well-positioned to receive further recognition for her groundbreaking contributions to the aerospace industry.

Conclusion

Dr. Nurul Musfirah Mazlan is a strong candidate for the Best Researcher Award, given her extensive research contributions in aerospace propulsion and biofuels, graduate supervision, and technical expertise. Her work aligns with sustainable aviation efforts, making her research highly relevant. To further strengthen her case, industry collaborations, securing more grants, and taking leadership roles in global research organizations would enhance her profile.

Publications Top Noted

1. Spray Behaviour of Hydro-Treated Ester Fatty Acids Fuel Made from Used Cooking Oil at Low Injection Pressures

  • Authors: Azam, Q., Sulaiman, S.Z., Abdul Razak, N.A., & Mazlan, N.M.
  • Year: 2024
  • Journal: Aeronautical Journal
  • Citations: 1

2. Influence of Oxyhydrogen Gas Retrofit into Two-Stroke Engine on Emissions and Exhaust Gas Temperature Variations

  • Authors: Kamarudin, R., Ang, Y.Z., Topare, N.S., Baig, R.U., Sultan, S.M., & Mazlan, N.M.
  • Year: 2024
  • Journal: Heliyon
  • Citations: 2

3. Analysis Study of Thermal and Exergy Efficiency in Double-Layers Porous Media Combustion Using Different Sizes of Burner: A Comparison

  • Authors: Ismail, N.C., Abdullah, M.Z., Mazlan, N.M., Rusdi, M.S.B., & Kamarudin, R.
  • Year: 2024
  • Journal: Pertanika Journal of Science and Technology
  • Citations: 0

4. Effect of NCO/OH Ratio and Binder Content with Micro-AP on HTPB/AP/Al-Based Propellants Mechanical Properties

  • Authors: Adnana, Z., & Mazlan, N.M.
  • Year: 2024
  • Journal: Advances in Materials Research (South Korea)
  • Citations: 0

 

Mahmood Abbasi Layegh | Engineering | Best Researcher Award

Assist Prof Dr. Mahmood Abbasi Layegh | Engineering | Best Researcher Award

Assistant professor & Senior researcher, Urmia University, Iran

🎓 Dr. Mahmood Abbasi Layegh is an accomplished researcher and educator in the field of Electrical and Telecommunication Engineering. Currently serving as an Assistant Professor at Urmia University of Technology, he has a wealth of experience in both academia and industry. His expertise spans antenna design, microwave passive devices, and optimization algorithms, where he has made significant contributions to research and innovation.

Publication Profile

Google scholar

Education

📚 Dr. Abbasi Layegh holds a Ph.D. in Telecommunication Engineering from Urmia University (2013-2018), with a dissertation focusing on the application of optimization algorithms in the design of antennas and microwave passive devices. Prior to this, he earned an M.Sc. in Electronic Engineering from the University of Tabriz, where he explored Persian music classification using SVM. His academic journey began with a B.Sc. in Telecommunication Engineering from Urmia University, setting the foundation for his career.

Experience

🏫 Dr. Abbasi Layegh has a diverse teaching and professional background. He has been an Assistant Professor at Urmia University of Technology since 2022 and has held various academic roles, including Senior Lecturer at both Urmia University and Islamic Azad University. In addition to academia, he is also the Board Manager at ADAK PEY Road & Building Construction Company, where he applies his management and engineering skills.

Research Focus

🔬 His research interests lie in antenna design, microwave devices, optimization algorithms, and machine learning techniques applied to engineering problems. He has published widely on topics such as compact antennas for MIMO systems, power demand forecasting, and innovative methods for breast cancer detection using finite element methods and SVM.

Awards and Honors

🏅 Dr. Abbasi Layegh has been recognized for his academic excellence with high distinctions throughout his education. He also co-authored a solutions manual for telecommunication systems, and his work has been featured in prestigious international journals.

Publication Highlights

“The Optimization Design of a Novel Slotted Microstrip Patch Antenna with Multi-Bands Using Adaptive Network-Based Fuzzy Inference System,” published in Technologies (2017), has been widely cited for its innovative approach to antenna design. Read here

“Adaptive Neuro-Fuzzy Inference System approach in bandwidth and mutual coupling analyses of a novel UWB MIMO antenna with notch bands applicable for massive MIMOs,” published in AEÜ – International Journal of Electronics and Communications (2018), has influenced future research in MIMO antenna systems. Read here

Using AHP method to evaluate e-payment system factors influencing mobile banking use in Iranian banks

The optimization design of a novel slotted microstrip patch antenna with multi-bands using adaptive network-based fuzzy inference system

Classification of the Radif of Mirza Abdollah a canonic repertoire of Persian music using SVM method

 

Sunday Olayinka Oyedepo | Mechanical Engineering | Excellence in Research Award

Prof Dr. Sunday Olayinka Oyedepo | Mechanical Engineering | Excellence in Research Award

Professor, Bells University of Technology, Nigeria

Profile

Orcid

Professor Sunday Olayinka Oyedepo is a highly accomplished academic with over 22 years of experience in teaching and research in Mechanical Engineering. He currently serves as a Professor at Covenant University, Nigeria, and specializes in thermal energy system design, energy management, and sustainable technologies. With numerous publications and collaborations, Professor Oyedepo is recognized for his contributions to energy systems and noise pollution research. He has a rich history of guiding students at various academic levels and is a registered engineer in Nigeria.

Education 🎓

Professor Oyedepo obtained his Bachelor’s degree in Mechanical Engineering from the University of Ilorin, followed by a Master’s degree from the University of Ibadan, both in Nigeria. He completed his PhD at Covenant University, focusing on the thermodynamic performance analysis of gas turbine power plants in Nigeria.

Experience 🌍

Starting his academic career in 2000 as a lecturer at Kwara State Polytechnic, Professor Oyedepo moved to Covenant University in 2005, where he has been pivotal in research and administration. He has supervised multiple PhD, Master’s, and undergraduate students, contributing to both academic and applied engineering practices. He also served as the Head of the Department of Mechanical Engineering at Covenant University from 2017 to 2019.

Research Interests 🔬

Professor Oyedepo’s research focuses on energy system design and optimization, including gas and steam turbine power plants, energy conservation, exergy analysis, renewable energy technologies, heat transfer, and noise pollution control. He is actively involved in studying sustainable energy development and industrial energy management.

Awards 🏆

He was recognized as one of the Top 2% Scholars globally in 2021, based on data published by Elsevier. In December 2021, he received the Outstanding Researcher Award in Mechanical Engineering by STAIR Progressive Forum, India.

Publications Top Notes 📚

Professor Oyedepo has over 170 publications, including notable papers in international journals such as Renewable and Sustainable Energy Reviews, Energy Conversion and Management, and Environmental Monitoring Assessment. Below are some of his key works:

Experimental Investigation of Used Vegetable Oil-Diesel Blends as Alternative to Fossil Fuel in Compression Ignition Engine (2024) – Book Chapter

Experimental investigation of heating values and chemical compositions of selected fuel woods as bio-fuel sources in developing countries (2023) – Fuel

Numerical modeling of heat transfer performance and optimization of car radiator using (H2O/Al2O3) nanofluids as coolant (2022) – Numerical Heat Transfer

Progress in the experimental and computational methods of work function evaluation of materials: A review (2022) – Heliyon

Waste Heat Recovery Technologies: Pathway to Sustainable Energy Development (2021) – Journal of Thermal Engineering

Akash Sood | Engineering | Best Researcher Award

Mr. Akash Sood | Engineering | Best Researcher Award

Research Scholar at Sant Longowal Institute of Engineering and Technology, India

Akash Sood is a dedicated Ph.D. research scholar specializing in carbon dioxide capture and sequestration at the Sant Longowal Institute of Engineering and Technology, Punjab. He has a remarkable academic record, including an M.Tech. in Energy Technology with a CGPA of 8.71, where he ranked second in his university, and a B.E. in Mechanical Engineering, where he was the college topper. Akash has authored several impactful research papers and holds seven patents, showcasing his innovative approach to engineering challenges. His accolades include the Bharat Vikas Award for contributions to the energy and environment sector and recognition for his research on steering system design. With proficiency in various engineering software and training in reputable organizations, he has practical experience in manufacturing and power generation. Fluent in English, Hindi, and Punjabi, Akash is poised to make significant contributions to environmental sustainability through his ongoing research and future innovations.

Publication Profile

Scopus

Strengths for the Award:

  1. Academic Excellence:
    • Currently pursuing a Ph.D. in Carbon Dioxide Capture and Sequestration, showing a commitment to advancing knowledge in a critical area.
    • Achieved high academic standing throughout his educational career, including second rank in M.Tech. and college topper in B.E.
  2. Research Contributions:
    • Authored several papers on carbon capture technologies, indicating deep knowledge and contribution to the field.
    • Holds 7 patents which demonstrate innovative thinking and the ability to translate research into practical applications.
  3. Awards and Recognition:
    • Received the Bharat Vikas Award (2018) for contributions in energy and environment, showcasing recognition from credible organizations.
    • Awarded for best paper for developing new mathematical models, indicating strong research capabilities.
  4. Practical Experience:
    • Completed multiple training sessions in reputed organizations, gaining practical experience in manufacturing and power generation processes.
    • Actively participated in a national-level competition, serving as vice-captain, which reflects leadership and teamwork skills.
  5. Technical Skills:
    • Proficient in a wide range of engineering and design software (e.g., AutoCAD, SolidWorks, MATLAB), which is essential for conducting modern engineering research.
  6. Multilingual Communication:
    • Fluent in English, Hindi, and Punjabi, which facilitates effective communication in diverse research environments.

Areas for Improvement:

  1. Public Speaking and Presentation Skills:
    • While he has published papers and patents, enhancing his public speaking skills could help him effectively share his findings at conferences and seminars, thereby broadening his impact.
  2. Networking and Collaboration:
    • Although he has a solid foundation in research, seeking collaboration with more established researchers or institutions could enhance the visibility and reach of his work.
  3. Project Management:
    • Gaining more experience in managing large-scale research projects could help in the successful execution of complex projects, particularly in interdisciplinary settings.
  4. Outreach and Community Engagement:
    • Engaging more with the community and industry to demonstrate the practical applications of his research could increase awareness and foster support for carbon capture initiatives.

Education:

Akash Sood has an impressive educational background, currently pursuing a Ph.D. in Carbon Dioxide Capture and Sequestration at the Sant Longowal Institute of Engineering and Technology in Punjab, which he commenced in 2018. He earned his M.Tech. in Energy Technology with a commendable CGPA of 8.71, securing the second rank in his university during his studies from 2014 to 2017 at the School of Energy and Environment Management, Rajiv Gandhi Proudyogiki Vishwavidyalaya in Bhopal. Prior to that, he completed his Bachelor of Engineering in Mechanical Engineering from the Malwa Institute of Technology and Management, also part of Rajiv Gandhi Proudyogiki Vishwavidyalaya, where he was the college topper with a CGPA of 7.57. Notably, he performed exceptionally well in the GATE 2014 examination, achieving a percentile above 92. Akash’s academic achievements reflect his dedication and excellence in his field, laying a strong foundation for his research and professional endeavors.

Experience:

Akash Sood has garnered valuable practical experience through various training programs and projects that complement his academic pursuits. He completed a 15-day training at the Railway Wagon Workshop in Jhansi, where he learned about manufacturing processes and periodic overhauling of railway wagons. He further enhanced his understanding of power generation through a one-month training at Indraprastha Power Generation Corporation Limited in Delhi, focusing on workflow in coal and gas-based power plants. Additionally, he participated in a two-day training at the Maruti Center for Excellence in Gurugram, where he gained insights into new product development processes, including Failure Mode and Effects Analysis (FMEA), Advanced Product Quality Planning (APQP), and Production Part Approval Process (PPAP). Moreover, as the vice-captain and technical head of a 25-member team for the Mahindra BAJA SAE India 2014 competition, Akash played a key role in designing and developing an All-Terrain Vehicle, showcasing his leadership and teamwork abilities in a competitive environment. This diverse experience equips him with a practical understanding of engineering applications and reinforces his commitment to addressing contemporary technological challenges.

Research Focus:

Akash Sood’s research focuses on carbon dioxide capture and sequestration (CCS), a critical area in addressing climate change and reducing greenhouse gas emissions. His work involves developing and testing innovative methods for capturing CO2 using various amine-based solvents, as well as creating a pilot-scale CCS unit to evaluate the effectiveness of these solvents in industrial applications. He has authored several scholarly articles on advancements in membrane-based and ionic liquid technologies for carbon capture, contributing to the body of knowledge in this field. In addition to his academic research, Akash has secured multiple patents, showcasing his ability to translate theoretical concepts into practical solutions. His commitment to sustainable engineering solutions is further reflected in his aim to launch active CCS environments that can mitigate CO2 emissions on a larger scale.

Awards and Honors:

Akash Sood has received notable recognition for his contributions in the field of energy and environment. He was awarded the Bharat Vikas Award in 2018 for his significant work in the energy sector. Additionally, he earned the Best Paper Award for developing an innovative mathematical model for steering system design. His achievements include participation as vice-captain and technical head in the Mahindra BAJA SAE INDIA 2014 competition, where he led a team to design and develop an All-Terrain Vehicle for a national-level event. Throughout his academic journey, he has authored multiple publications and holds seven patents, showcasing his innovative approach and commitment to advancing technology in carbon dioxide capture and sequestration.

Publication Top Notes:

  • A mini review: Polymer-matrix nanocomposites and its synthesis techniques
    • Authors: Bhatia, P., Pachauri, A., Sood, A., Gaur, M.K.
    • Year: 2019
    • Citations: 3
  • Experimental investigation of physical and tribological properties of engine oil with nano-particles additives
    • Authors: Gaur, M.K., Singh, S.K., Sood, A., Chauhan, D.S.
    • Year: 2019
    • Citations: 1
  • Carbon dioxide capture efficiency determination for post combustion capture through MEA using Aspen HYSYS at low pressure
    • Authors: Sood, A., Vyas, S.
    • Year: 2018
    • Citations: 1
  • Carbon Capture and Sequestration- A Review
    • Authors: Sood, A., Vyas, S.
    • Year: 2017
    • Citations: 26
  • A review: Carbon Capture and Sequestration (CCS) in India
    • Authors: Sood, A., Vyas, S.
    • Year: 2017
    • Citations: 16

Conclusion:

Akash Sood is a promising candidate for the Best Researcher Award. His strong academic background, significant contributions to the field of carbon dioxide capture and sequestration, and innovative mindset reflected through patents highlight his potential. While there are areas where he can improve, such as public speaking and project management, his strengths considerably outweigh them. His ongoing efforts to develop technologies that can reduce CO2 emissions demonstrate a commitment to addressing environmental challenges, making him not only a deserving candidate for the award but also a valuable asset to the field of mechanical engineering and environmental sustainability.