Article
Environmental Sciences
Asael Greenfeld, Nir Becker, Janet F. Bornman, Sabrina Spatari, Dror L. Angel
Summary: Aquaponics is promoted as a sustainable agricultural practice, but its economic sustainability is challenging due to external benefits necessitating public intervention. A proposed aquaponic system for producing ornamental fish and lettuce was estimated to have an environmental cost of 10,700 EUR annually, mainly attributed to industrial processes. Life cycle assessment and economic valuation methods can potentially assess the cost-effectiveness of aquaponics from an environmental perspective.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Industrial
Antti Pakonen, I Buzhinsky, K. Bjorkman
Summary: The paper discusses formal verification methods for spurious actuation failures in industrial instrumentation and control systems, emphasizing the use of model checking for analyzing design issues. The authors present real-world design issues related to systemic failures in the nuclear industry, demonstrating the effectiveness of their method for single failure tolerance verification through experimental evaluation.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2021)
Article
Health Care Sciences & Services
Iris M. de Hoogh, Machiel J. Reinders, Esmee L. Dotes, Femke P. M. Hovenaars, Jan L. Top
Summary: The current health status of the general public can benefit from a healthy diet. Personalized approach to initiate healthy dietary behavior is promising, but providing personalized advice to a wide audience over a long period is labor-intensive. Digitalizing the process can potentially overcome this bottleneck.
JOURNAL OF MEDICAL INTERNET RESEARCH
(2023)
Article
Automation & Control Systems
Issam Chekakta, Djamel E. C. Belkhiat, Kevin Guelton, Dalel Jabri, Noureddine Manamanni
Summary: This paper investigates the design of asynchronous switched observers for continuous-time nonlinear switched systems using Takagi-Sugeno fuzzy models, considering mismatching switching laws and bounded output disturbances. Multiple Lyapunov function candidate and H-infinity criterion are applied to cope with asynchronous switching modes and minimize transfer between output disturbance and state estimation errors. Lipschitz constraints are considered for unmeasurable premise variables, with the proposed conditions declined into four theorems as Linear Matrix Inequalities for conservatism improvements.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2021)
Article
Thermodynamics
Sverre Stefanussen Foslie, Brage Rugstad Knudsen, Magnus Korpas
Summary: Around 70% of worldwide industrial energy use is based on fossil energy. Electrification of low temperature heat is seen as a key measure to reduce emissions. Integrating thermal and electrical energy systems is important for cost reduction and accelerated implementation.
Article
Engineering, Civil
Majid Ehsani, Mohammad Navid Moghim, Mehdi Shafieefar
Summary: An experimental model of an Icelandic-berm breakwater was set up and tested in various sea-state conditions and geometrical parameters. A stability formula was proposed to estimate the berm recession, and the results showed that this formula provided an appropriate estimation. Recommendations were made for berm parameters in the design of Icelandic-type berm breakwaters.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-MARITIME ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yimin Feng, Qiang Zou, Chenchu Zhou, Yusheng Liu, Qibo Peng
Summary: A metamodel for system-of-systems (SoS) architecture is defined, which considers both structural and behavioral perspectives. Ontologies enhanced with a flow-based extension are used to characterize architecture views. An SoS capability ontology and an SoS operational ontology are built based on the metamodel, including factors, relationships, and flows. A four-step architecture process for developing capabilities and a five-step architecture process for operational modeling are provided using the ontologies. The proposed approach is applied in a search and rescue case study, demonstrating its ability to improve operability in the early design stage. The process is implemented using the Unified Architecture Framework (UAF) to enhance understanding and development of an SoS by stakeholders and engineers.
APPLIED SCIENCES-BASEL
(2023)
Article
Computer Science, Artificial Intelligence
Chih-Peng Huang
Summary: This article investigates the admissibility analysis and the parallel distributed compensator (PDC) for fuzzy descriptor systems with perturbed derivative matrices. A new admissibility analysis condition is presented based on linear matrix inequalities (LMIs), and the fuzzy PDC synthesis is further handled.
IEEE TRANSACTIONS ON FUZZY SYSTEMS
(2022)
Article
Engineering, Aerospace
Anna E. E. Scholz, Johannes Michelmann, Mirko Hornung
Summary: This paper assesses the potential of a fuel cell hybrid-electric aircraft powered by hydrogen and kerosene to reduce the environmental impact of the aviation industry. The results show that using liquid hydrogen as fuel can lead to a climate impact reduction of 15.2-17.8%.
JOURNAL OF AIRCRAFT
(2022)
Article
Computer Science, Information Systems
Jacob Chia-An Tsai, James J. Jiang, Gary Klein, Shin-Yuan Hung
Summary: This article investigates the design challenges posed by legacy information systems (LIS) and proposes a framework for practice and knowledge sources to facilitate highly interactive decision processes among team members. The results provide valuable guidance for practice and expand the scope of information elaboration theory.
INFORMATION & MANAGEMENT
(2022)
Review
Green & Sustainable Science & Technology
Emma Soule, Philippe Michonneau, Nadia Michel, Christian Bockstaller
Summary: There is still a research gap in the in-depth analysis of the conceptual and methodological framework behind sustainability assessment methods. Clarity on terminology, explicit specification of purpose, target users, and temporal scale, as well as selection of appropriate indicators and addressing upscaling or spatialization issues are needed. Dynamic assessment of resilience or robustness with multiple criteria remains a challenge, and environmental sustainability assessment methods will need to integrate ecosystem services and emerging environmental issues.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Tom Terlouw, Paolo Gabrielli, Tarek AlSkaif, Christian Bauer, Russell McKenna, Marco Mazzotti
Summary: Designing decentralized energy systems in an optimal way can lead to cost reduction and environmental burden reduction. However, existing models for optimal design of multi-energy systems do not comprehensively consider environmental assessment or relevant technology options. This paper presents a multi-objective optimization framework that considers life cycle environmental burdens and a wide range of technology options for different sectors. Results demonstrate the competitiveness and potential benefits of properly designed MESs.
Review
Engineering, Environmental
Zhong Chen, Ducheng Yao, Chengcheng Chu, Shun Mao
Summary: This article introduces strategies for improving the efficiency of photocatalytic H2O2 production and discusses its potential and challenges in environmental applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Energy & Fuels
Kabulo Loji, Sachin Sharma, Nomhle Loji, Gulshan Sharma, Pitshou N. N. Bokoro
Summary: Distribution systems in traditional power systems have passive elements and face issues like voltage and thermal constraints, harmonics, and overloading. In modern times, these systems have become active distributed networks with a substantial amount of distributed energy resources. Integrating these resources poses operational and efficiency challenges that impact the network reliability and stability. This paper provides a comprehensive literature survey on operational challenges and proposes suitable optimization techniques to address the coordination of multiple renewable sources, storage systems, and demand response mechanisms for improved stability and reliability.
Article
Chemistry, Physical
Peng Yan, Yi Cheng
Summary: Methane steam reforming is expected to be the dominant method for hydrogen production in the future. The use of a membrane reactor can significantly save energy and achieve process and equipment compactness, especially for decentralized applications. This study focuses on the design of a particle-based packed-bed membrane reactor and investigates its operational window and design challenges through experimental and computational approaches, with a particular emphasis on the scale of the reactor and catalyst activity. The results reveal the optimal operation conditions for maximizing hydrogen flux and identify catalyst activity as the key limiting factor for further process intensification.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)