Article
Engineering, Electrical & Electronic
Haizhou Liu, Lun Yang, Xinwei Shen, Qinglai Guo, Hongbin Sun, Mohammad Shahidehpour
Summary: The letter introduces a data-driven warm start approach using an artificial neural network to improve the efficiency of convex relaxations in optimal gas flow. It reduces the number of iterations for the convex-concave procedure algorithm while ensuring optimality and feasibility of the solution. The algorithm's robustness is confirmed, and it is shown that this approach can also be applied to large-scale electricity-gas coupled integrated energy systems.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Physics, Multidisciplinary
Rui Fu, Qingyun Wang
Summary: Stochastic thermodynamics provides a framework for understanding the behavior of small systems far from equilibrium but still interacting with a heat bath. This study focuses on the optimal performance of a thermodynamic heat engine with a periodically changing temperature, controlled by a time-dependent harmonic potential. The achievable upper bound for maximal power, optimal control protocol, and corresponding efficiency at maximal power are derived based on reasonable assumptions on the control actuation.
Article
Engineering, Electrical & Electronic
Sharu Theresa Jose, Osvaldo Simeone
Summary: This lecture note aims to review the problem of free energy minimization as a unified framework underlying maximum entropy modeling, generalized Bayesian inference, learning with latent variables, statistical learning analysis, and local optimization. It introduces free energy minimization as a thermodynamic principle historically, and describes it mathematically in the context of Fenchel duality. The applications to modeling, inference, learning, and optimization are covered, starting from basic principles.
IEEE SIGNAL PROCESSING MAGAZINE
(2021)
Article
Chemistry, Multidisciplinary
Victor V. Kuzenov, Sergei V. Ryzhkov, Aleksey Yu. Varaksin
Summary: A mathematical model is developed to study magneto-plasma compressor (MPC) discharges in gases. Depending on the heating mode, three different types of quasi-stationary spatial distributions of plasma parameters are observed, providing insights into the emerging structures and plasma dynamics. The study also investigates the dynamic structures and parameter variations of an MPC discharge in the transient regime.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Multidisciplinary
Prakitr Srisuma, Nuttawat Suwattanapongtada, Napon Opasanon, Pongtorn Charoensuppanimit, Konrat Kerdnawee, Chompoopitch Termvidchakorn, Wiwut Tanthapanichakoon, Tawatchai Charinpanitku
Summary: This study investigates the formation of carbon nanotubes (CNTs) via pyrolysis of ferrocene and glycerol through experimental analyses and a theoretical model. It was found that the formation rate of CNTs increases rapidly at temperatures above 700K, but slightly decreases when the temperature exceeds 1000K due to competitive decomposition steps.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Agriculture, Multidisciplinary
Carlos A. Renaudo, Diego E. Bertin, Veronica Bucala
Summary: This contribution presents the development and validation of a coupled atomization-spray drift model suitable for different types of nozzles. The model provides a simple simulation tool that can predict the ground deposition spray drift of a nozzle using a minimum number of easily accessible input data.
PRECISION AGRICULTURE
(2022)
Article
Engineering, Mechanical
Lin Chen, Jian Wu, Zhibin Lu, Lunlin Shang, Guangan Zhang, Qunji Xue
Summary: A mathematical model is developed based on gas adsorption and removal to describe the friction coefficient of films in atmosphere. The gas adsorption process in different stages follows the corresponding adsorption kinetic equation, and a new adsorption kinetic equation reveals the relationship between the two adsorption stages, providing a basis for customizing sliding interfaces.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Physics, Particles & Fields
Daris Samart, Patinya Ma-adlerd, Peeravit Koad, Phongpichit Channuie
Summary: In this study, we investigated the non-minimally coupled scenario in warm inflation with a quantum-corrected self-interacting potential. By taking into account the interaction between the inflaton and radiation fluid, we found that by choosing proper parameters and a sufficient number of e-folds, our predictions are in good agreement with the latest Planck 2018 results.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Energy & Fuels
Yijie Wei, Tie Li, Run Chen, Xinyi Zhou, Zhifei Zhang, Xinran Wang
Summary: This study investigated the gas entrainment process in the breakup length of diesel spray using the high-speed micro-PTV technique. The experimental results showed that the gas entrainment velocity increased with higher injection pressure, while ambient density had no significant impact on the entrainment velocity. The study also proposed a theoretical 0-D model to estimate the cumulative gas entrainment rate during the quasi-steady state, which was validated with the experimental results.
Article
Mechanics
Alexander Kurganov, Yongle Liu, Vladimir Zeitlin
Summary: This paper investigates how thermal effects impact the trajectories, intensity, and formation of secondary structures during the passages of strong tropical cyclone-like vortices over oceanic warm and cold pools as well as over an island-type topography. The results demonstrate that by incorporating moist-convection effects into the model, it is possible to better simulate atmosphere-ocean interactions.
Article
Mechanics
Andres Cordoba, Jay D. Schieber
Summary: In this study, the dynamics and stability of a swarm of microswimmers are examined using a thermodynamically compliant microswimmer model. The research findings show that microswimmers in the swarm can swim much faster than when alone in an infinite sea, and the crystalline arrangement of the swarm plays a crucial role in the hydrodynamic interaction between swimmers. Moreover, the study reveals that hydrodynamic torques have a stabilizing effect on swarms of pullers but destabilize swarms of pushers. By considering fuel consumption and high order hydrodynamic interactions, the full dynamics of the swarm's stability are investigated.
Article
Multidisciplinary Sciences
Daniel K. Hoffmann, Vijay Pal Singh, Thomas Paintner, Manuel Jaeger, Wolfgang Limmer, Ludwig Mathey, Johannes Hecker Denschlag
Summary: Researchers demonstrate the variation of second sound wave in the crossover from Bose-Einstein condensate to Bardeen-Cooper-Schrieffer superfluid using ultracold fermionic Li-6 atoms with tunable interactions. The speed of second sound varies only slightly in this crossover regime, providing deeper insight into the propagation of sound waves. The measurement results are compared with classical-field simulations to aid in the interpretation of experiments.
NATURE COMMUNICATIONS
(2021)
Article
Astronomy & Astrophysics
Zahra Bouabdallaoui, Ahmed Errahmani, Mariam Bouhmadi-Lopez, Taoufik Ouali
Summary: In this paper, warm inflation is considered in the context of holographic cosmology. The weak and strong dissipative regimes are analyzed within the slow-roll approximation and intermediate inflation. By considering several dissipative and physically relevant functions, the author constrains the model using the latest Planck data, and concludes that three of the models analyzed are consistent with the observations.
Article
Astronomy & Astrophysics
Suratna Das, Rudnei O. Ramos
Summary: The graceful exit of warm inflation depends on the form of the potential, the choice of warm inflation model, and the regime of weak or strong dissipation. The article derives generic conditions on slow-roll parameters and constraints on various model parameters necessary for warm inflation to exit gracefully.
Article
Engineering, Chemical
Carlos A. Renaudo, Diego E. Bertin, Veronica Bucala
Summary: A spray drift model for horizontal boom sprayers was developed and validated using field data. The model showed good agreement with reported measurements and can predict spray drift without dispersion-related data. The study also emphasized the importance of accounting for multiple nozzles in representing spray drift. The model is computationally efficient and suitable for onboard sprayer computers and web servers.
JOURNAL OF AEROSOL SCIENCE
(2023)
Article
Materials Science, Ceramics
Er-Juan Yang, Xiao-Tao Luo, Guan-Jun Yang, Chang-Jiu Li, M. Takahashi, S. Kuroda, K. H. Kim
CERAMICS INTERNATIONAL
(2016)
Article
Materials Science, Coatings & Films
R. M. Molak, H. Araki, M. Watanabe, H. Katanoda, N. Ohno, S. Kuroda
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2017)
Article
Materials Science, Coatings & Films
Sebastian Krebs, Seiji Kuroda, Hiroshi Katanoda, Frank Gaertner, Thomas Klassen, Hiroshi Araki, Simon Frede
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2017)
Article
Materials Science, Coatings & Films
J. A. R. Wesmann, S. Kuroda, N. Espallargas
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2017)
Article
Materials Science, Coatings & Films
M. Gizynski, S. Miyazaki, J. Sienkiewicz, S. Kuroda, H. Araki, H. Murakami, Z. Pakiela, A. Yumoto
SURFACE & COATINGS TECHNOLOGY
(2017)
Article
Electrochemistry
Wei-Lin Hsu, Hideyuki Murakami, Hiroshi Araki, Makoto Watanabe, Seiji Kuroda, An-Chou Yeh, Jien-Wei Yeh
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Materials Science, Coatings & Films
Judyta Sienkiewicz, Seiji Kuroda, Hideyuki Murakami, Hiroshi Araki, Maciej Gizynski, Krzysztof J. Kurzydlowski
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2018)
Article
Materials Science, Multidisciplinary
Ewa Ura-Binczyk, Bartosz Moronczyk, Seiji Kuroda, Hiroshi Araki, Jakub Jaroszewicz, Rafal Maksymilian Molak
Article
Materials Science, Coatings & Films
Judyta Sienkiewicz, Seiji Kuroda, Hideyuki Murakami, Hiroshi Araki, Maciej Gizynski, Krzysztof J. Kurzydlowski
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2019)
Article
Materials Science, Coatings & Films
M. Gizynski, X. Chen, N. Dusautoy, H. Araki, S. Kuroda, M. Watanabe, Z. Pakiela
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Materials Science, Coatings & Films
S. Tsukada, S. Kuroda, M. Nishijima, H. Araki, A. Yumoto, M. Watanabe
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Materials Science, Coatings & Films
B. Moronczyk, E. Ura-Binczyk, S. Kuroda, J. Jaroszewicz, R. M. Molak
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Materials Science, Coatings & Films
Takuma Ohnuki, Seiji Kuroda, Hiroshi Araki, Xiaolong Chen, Makoto Watanabe, Yukihiro Sakamoto
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2020)
Review
Materials Science, Coatings & Films
Michel Hauer, Frank Gaertner, Sebastian Krebs, Thomas Klassen, Makoto Watanabe, Seiji Kuroda, Werner Kroemmer, Knuth-Michael Henkel
Summary: This study compares prerequisites for cavitation-resistant bronzes production by different coating techniques, aiming to help select the right technology for best cavitation protection. Results show that high-pressure warm spraying, cold spraying, HVOF spraying, and arc spraying can achieve properties similar to cast nickel aluminum bronze, with superior performance compared to shipbuilding steel.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Correction
Materials Science, Coatings & Films
Judyta Sienkiewicz, Seiji Kuroda, Hideyuki Murakami, Hiroshi Araki, Maciej Gizynski, Krzysztof J. Kurzydlowski
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2020)