Article
Computer Science, Interdisciplinary Applications
Francois-Alexandre Tremblay, Audrey Durand, Michael Morin, Philippe Marier, Jonathan Gaudreault
Summary: Continuous high-frequency wood drying, integrated with a traditional wood finishing line, improves the value of lumber by correcting moisture content piece by piece. Using reinforcement learning for continuous drying operation policies outperforms current industry methods and remains robust to sudden disturbances.
COMPUTERS IN INDUSTRY
(2024)
Article
Green & Sustainable Science & Technology
M. Assid, A. Gharbi, A. Hajji
Summary: The study focuses on the production planning and control problem within a hybrid manufacturing-remanufacturing system, proposing control policies to optimize long-term costs. Through simulation-optimization approach, the control policies are evaluated and compared, showing practicality in managing remanufacturing, manufacturing, and switching operations simultaneously.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agronomy
Liangzhu Kang, Shoufen Dai, Zhongping Song, Qin Xiang, Yuanyuan Zuo, Tingyu Bao, Guoyue Chen, Yuming Wei, Youliang Zheng, Gang Liu, Jian Li, Zehong Yan
Summary: The study reclassified PI 554419 as Ae. comosa subsp. comosa, showing significant morphological differences with other accessions. A disomic 1M/1D substitution line NB 4-8-5-9 derived from PI 554419 exhibited agronomic traits and seed morphological characteristics superior to its parents, with potential for developing translocation lines.
MOLECULAR BREEDING
(2021)
Article
Engineering, Industrial
Feng-Que Pei, Yi-Fei Tong, Ming-Hai Yuan, Kun Ding, Xi-Hui Chen
Summary: This paper proposes a novel high throughput metrology method for detailed performance analysis in the process quality monitoring and control of the Series Solar Cell Production Line, based on the Digital Twin and Digital Twin Shop Floor model.
JOURNAL OF MANUFACTURING SYSTEMS
(2021)
Article
Optics
Hakon J. D. Johnsen, Astrid Aksnes, Jan Torgersen
Summary: Line-focus solar concentrators are limited by the two-dimensional solar concentration limit, but it is possible to design concentrators beyond this limit using etendue squeezing, achieving higher concentration ratios and acceptance angles. By utilizing this concept, concentrators have been developed with simulated 75x and 218x concentration ratios, offering new possibilities for concentrated solar power systems.
Article
Multidisciplinary Sciences
Akhil Arora, M. M. Faruque Hasan
Summary: Medical oxygen concentrators (MOCs) are used to supply medical grade oxygen to prevent complications related to respiratory diseases. Flexible single-bed MOC systems have been designed and optimized to meet varying product specifications, addressing the limitations of fixed product specifications. The optimization studies show that LiLSX outperforms other adsorbents and can produce high purity oxygen with varying flow rates.
SCIENTIFIC REPORTS
(2021)
Article
Computer Science, Interdisciplinary Applications
M. Assid, A. Gharbi, A. Hajji
Summary: This paper addresses the production planning and control problem in unreliable Hybrid Manufacturing Remanufacturing Systems (HMRSs). The research investigates how companies can benefit from an integrated control policy to minimize costs and meet customer quality requirements by coordinating remanufacturing, manufacturing, replenishment of returns, and quality control.
COMPUTERS & INDUSTRIAL ENGINEERING
(2023)
Article
Engineering, Industrial
Hector Rivera-Gomez, Ali Gharbi, Jean-Pierre Kenne, Ruth Ortiz-Zarco, Jose Ramon Corona-Armenta
Summary: This paper proposes a new joint control policy that considers the interactions between production quality and maintenance. A stochastic mathematical model is developed using specialized optimization techniques to solve the quality constrained problem. Numerical examples are provided to demonstrate the usefulness of the proposed approach and investigate the interactions between production-quality and maintenance strategies.
JOURNAL OF MANUFACTURING SYSTEMS
(2021)
Article
Chemistry, Multidisciplinary
Jian Zhang, Haochun Zhang, Weifeng Li, Gang Zhang
Summary: In recent years, the regulation of nanoscale heat flux has been a forefront of research. In this paper, we designed heat flux concentrators using patterned amorphous and nanomesh structures and found that the heat flux in the central regions is significantly higher than that in the adjacent regions. This work provides a direct design strategy for thermal concentrators using practical nanofabrication technologies.
NANOSCALE ADVANCES
(2023)
Article
Green & Sustainable Science & Technology
M. Medhat El-Bakry, Mahmoud A. Kassem, Muhammed A. Hassan
Summary: Boosting the optical and thermal efficiencies of parabolic trough concentrators is gaining global interest. This study proposes a new design with floating radiation heat shields to enhance energy and exergy efficiencies. The configuration with a diameter of 75 mm and a shading angle of 150 degrees showed the highest improvement ratios.
Article
Engineering, Industrial
Abdessamad Ait-El-Cadi, Ali Gharbi, Karem Dhouib, Abdelhakim Artiba
Summary: This paper proposes a new integrated control policy for failure-prone manufacturing systems, which combines production, maintenance, and dynamic sampling inspection. A comprehensive mathematical model is developed to optimize the control settings and a detailed sensitivity analysis is carried out to validate the importance of adapting the inspection effort to the inner quality in the production. The results show that the proposed integrated policy based on dynamic inspection outperforms classical inspection strategies in literature and practice.
INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
(2021)
Article
Pharmacology & Pharmacy
Morgane Jelsch, Yves Roggo, Ahmad Mohamad, Peter Kleinebudde, Markus Krumme
Summary: Continuous Manufacturing (CM) is a new approach in the pharmaceutical industry, and in this paper, a GMP continuous wet granulation line was investigated to assess its system dynamics and define the best control and diversion strategy. The study compared two drug products with different ingredients and utilized process analytical technologies to monitor the API content in real time. The development of an automatic residence time distribution (RTD) calculation method further helped to define and monitor the system dynamics for out of specification material diversion during continuous production.
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS
(2022)
Review
Computer Science, Interdisciplinary Applications
N. Paape, J. A. W. M. Van Eekelen, M. A. Reniers
Summary: A review is conducted to identify off-the-shelf simulation tools capable of using hybrid discrete-event and agent-based simulation for performance predictions in the conceptual design phase of a CPPS. The selected tools are evaluated and classified, and the most promising simulation tool, Anylogic, is subjected to a case study to assess its ability in predicting the performance of a CPPS.
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING
(2023)
Article
Automation & Control Systems
Stefano Spellini, Roberta Chirico, Marco Panato, Michele Lora, Franco Fummi
Summary: This article introduces a methodology to formalize the behavior of machines and automatically generate their virtual prototypes for efficient and correct plant simulation. By using assume-guarantee reasoning and contracts to model the interaction between machines in a production line, executable models can be built and integrated into industrial plant simulation software.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2021)
Article
Computer Science, Information Systems
Jeng-Dao Lee, Hung-Yu Hsu, Cheng-Yi Li, Jun-Yi Yang
Summary: The changing market and increasing customized demands have prompted the manufacturing industry to improve their production-process automation system control. A proposed intelligent automated production-line control system utilizes a graphic control system and function block programs for easier user control.
Article
Optics
Luis San Jose, Guido Vallerotto, Rebeca Herrero, Ignacio Anton
Summary: Micro-scale concentrator photovoltaics (micro-CPV) is a promising approach for high-efficiency, low-cost photovoltaic systems. This paper presents a method for characterizing misalignments between cells and optics based on image acquisition and processing, and applies it to a micro-CPV module for quality control inspection.
Article
Energy & Fuels
Norman Jost, Steve Askins, Richard Dixon, Mathieu Ackermann, Cesar Dominguez, Ignacio Anton
Summary: Micro-concentrator photovoltaics technology reduces the size of components, achieving high efficiencies and cost reductions. The interconnection of multiple solar cells is achieved through direct printing onto front contact pads. This technology has the potential for large-scale implementation.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Review
Energy & Fuels
Khem Raj Gautam, Gorm Brunn Andresen, Marta Victoria
Summary: This paper reviews the commercial development of emerging thermo-mechanical energy storage solutions and assesses their potential for commercial viability. The study finds that thermo-mechanical energy storage can be an economically viable alternative energy solution under specific conditions.
Article
Energy & Fuels
Kenji Araki, Yasuyuki Ota, Anju Maeda, Minoru Kumano, Kensuke Nishioka
Summary: Electric vehicles have the advantage of resilience to natural disasters, but users hesitate to donate electricity when they lose the chance to recharge at the utility. Solar electric vehicles, through vehicle-integrated photovoltaics, can save energy and enable voluntary donation of excess energy, thus maintaining facility resilience. This study investigates the potential of vehicle-integrated photovoltaics to maintain utility resilience considering physical factors like irradiance and social factors.
Review
Energy & Fuels
Norman Jost, Tian Gu, Juejun Hu, Cesar Dominguez, Ignacio Anton
Summary: The global energy market is experiencing a gradual rise in electricity demand and rapid growth in the photovoltaic (PV) industry. One of the PV technologies, concentrator photovoltaics (CPV), offers higher efficiencies by using concentrated sunlight and reducing semiconductor material required. However, the high initial manufacturing cost of CPV makes it less cost-competitive than silicon PV. To address this, micro-CPV, which involves miniaturizing solar cells and optical components, is introduced to lower costs while maintaining high electrical efficiencies. This review examines the technological advancements and identifies key synergies with industries such as micro-light emitting diodes display manufacturing to facilitate the commercial adoption of micro-CPV with reduced costs.
Article
Energy & Fuels
Guido Vallerotto, Francisco Martin, Javier Macias, Rebeca Herrero, Luis J. San Jose, Steve Askins, Ruben Nunez, Cesar Dominguez, Ignacio Anton
Summary: The vehicle integrated photovoltaic (VIPV) technology integrates PV solar panels into the surfaces of electric vehicles, increasing car autonomy. Specific methods and equipment are required to properly characterize three dimensional PV surfaces. This paper describes the design principles and requirements of a solar simulator for characterization of curved PV modules. Results show the advantages of using a collimated light source compared to conventional solar simulators for flat modules.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Computer Science, Cybernetics
Ana B. Cristobal, Cristina Sanz-Cuadrado, Zhe Zhang, Marta Victoria, Luis Fialho, Afonso Cavaco, Matevz Bokalic, Luis Narvarte
Summary: This paper explores the operationalization of energy communities as a tool to create large and stable citizen science and education hubs focused on energy. It presents the rationale behind energy communities and their potential for transformative change. The developed model has received positive feedback from European university communities, showing its acceptability and potential for inclusiveness and universal access to energy experiences.
UNIVERSAL ACCESS IN THE INFORMATION SOCIETY
(2023)
Article
Energy & Fuels
Ana Belen Cristobal, Luis Narvarte, Marta Victoria, Luis Fialho, Zhe Zhang, Cristina Sanz-Cuadrado, Matevz Bokalic
Summary: Universities can play a significant role in energy education and transition by establishing energy communities through collaboration with communities, providing sustainable education and practical experiences.
Proceedings Paper
Energy & Fuels
Ruben Nunez, Stephen Askins, Arash Soofi, Laetitia Anglade, Florian Gerlich, Ignacio Anton, Cesar Dominguez
Summary: By monitoring and adjusting the relevant variables in the experimental setup, we discovered the factors contributing to the formation of condensation in CPV modules, and studied several mitigating actions.
17TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-17)
(2022)
Proceedings Paper
Energy & Fuels
Guido Vallerotto, Norman Jost, Marta Victoria, Stephen Askins, Cesar Dominguez, Ignacio Anton
Summary: Silicone on glass Fresnel lenses are widely used in concentrator photovoltaics due to their simplicity and reliability, but they are affected by chromatic aberration. To overcome this limitation, the achromatic doublet on glass (ADG) technology was proposed. In this study, the authors present an alternative ADG architecture with the potential to significantly reduce losses and achieve a higher efficiency. The results show that the ADG technology has the same efficiency as the SoG technology while maintaining the advantages of achromatic design.
17TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-17)
(2022)
Proceedings Paper
Energy & Fuels
Steve Askins, Cesar Dominguez, Gael Nardin, Mathieu Ackermann, Delphine Petri, Matthieu Despeisse, Jacques Levrat, Xavier Niquille, Christophe Ballif, Juan F. Martinez, Marc Steiner, Gerald Siefer, Ignacio Anton
Summary: Significant progress has been made on the Insolight solar panel within the EU-funded project HIPERION. The latest results for Genl solar panels show significant improvement in self-tracking performance even with a 5X increase in module area.
17TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-17)
(2022)
Review
Computer Science, Information Systems
Christian Breyer, Siavash Khalili, Dmitrii Bogdanov, Manish Ram, Ayobami Solomon Oyewo, Arman Aghahosseini, Ashish Gulagi, A. A. Solomon, Dominik Keiner, Gabriel Lopez, Poul Alberg Ostergaard, Henrik Lund, Brian Mathiesen, Mark Z. Jacobson, Marta Victoria, Sven Teske, Thomas Pregger, Vasilis Fthenakis, Marco Raugei, Hannele Holttinen, Ugo Bardi, Auke Hoekstra, Benjamin K. Sovacool
Summary: Research on 100% renewable energy systems is a relatively new field that has found that achieving 100% renewable energy worldwide is feasible and cost-effective. Solar energy and wind power are seen as the central pillars of a sustainable energy system, and research has focused on addressing challenges such as grid congestion, energy storage, sector coupling, and climate change.
