Article
Thermodynamics
Francisco Cepeda, Rodrigo Demarco, Felipe Escudero, Juan Jose Cruz Villanueva, Gonzalo Carvajal, Andres Fuentes
Summary: This study investigated the relationship between soot concentration and temperature, and provided new data for time-dependent numerical simulations by measuring local radiative heat flux on transient laminar flames. Results showed that forced condition significantly changed soot production, temperature distribution, and radiative properties, enhancing flame radiation.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
Benjamin W. Keeton, Keiko K. Nomura, Antonio L. Sanchez, Forman A. Williams
Summary: Axisymmetric numerical simulations are conducted to investigate the influence of swirl on the stabilization of non-premixed jet flames. The results show that the coupling between swirl and flame propagation velocity as well as air-jet velocity affects the liftoff and blowoff of the flame, and the rotational speed of the swirl also affects the liftoff height and stability of the flame.
COMBUSTION AND FLAME
(2023)
Article
Energy & Fuels
Chinonso Ezenwajiaku, Midhat Talibi, Ramanarayanan Balachandran
Summary: This study focuses on the formation and growth characteristics of polycyclic aromatic hydrocarbons (PAHs) in inverse diffusion flames of various hydrocarbon fuels enriched with H-2. The results show that only the addition of H-2 to CH4 significantly reduces PAH concentrations as the flame length increases. Additionally, the growth rate of PAHs remains relatively stable regardless of the fuel bonding, molecular structure, and H:C ratio.
Article
Physics, Multidisciplinary
Faezeh Khodabandehlou, Christian Maes, Irene Maes, Karel Netocny
Summary: We investigate the mathematical ingredients for extending the Third Law of Thermodynamics to nonequilibrium processes and prove that the excess heat and nonequilibrium heat capacity tend to zero at zero temperature under certain conditions.
ANNALES HENRI POINCARE
(2023)
Article
Chemistry, Physical
Duncan Bossion, Sutirtha N. Chowdhury, Pengfei Huo
Summary: The new NRPMD method, based on the spin mapping formalism, demonstrates numerical accuracy and advantages in computing nuclear position and population auto-correlation functions of non-adiabatic model systems. It provides efficient sampling of quantum statistics and nearly time-independent expectation values for physical observables.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Chenghan Li, Francesco Paesani, Gregory A. Voth
Summary: It is common to use an elevated temperature in molecular dynamics simulations of water to overcome overstructuring and slow diffusion. However, a systematic examination of several models reveals that the elevated temperature cannot accurately mimic nuclear quantum effects at room temperature, especially in terms of three-molecule correlations and hydrogen bond dynamics.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2022)
Article
Optics
C. Y. Qin, H. Zhang, S. Li, S. H. Zhai, A. X. Li, J. Y. Qian, J. Y. Gui, F. X. Wu, Z. X. Zhang, Y. Xu, X. Y. Liang, Y. X. Leng, B. F. Shen, L. L. Ji, R. X. Li
Summary: This study reports the experimental observation of non-laminar proton acceleration modulated by a strong magnetic field in laser irradiating micrometer aluminum targets, showing the coexistence of ring-like and filamentation structures. By using particle-in-cell simulations and experimental diagnostics, it is revealed that the non-laminar features are caused by low-energy protons far off the axis and high-energy protons near the axis. The short-term magnetic turbulence via Weibel instability and the long-term quasi-static annular magnetic field by the streaming electric current are identified as the mechanisms accounting for the measured beam profile.
HIGH POWER LASER SCIENCE AND ENGINEERING
(2021)
Article
Mathematics, Applied
Madalina Deaconu, Samuel Herrmann
Summary: This article presents a new technique for path approximation of one-dimensional stochastic processes, specifically focusing on Brownian motion and certain families of stochastic differential equations. The proposed procedure constructs explicit sequences of exit times and positions of selected domains. The convergence of the scheme is proven, along with the control of the number of steps. The study combines results on Brownian exit times from time-dependent domains with classical renewal theory.
DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B
(2023)
Article
Developmental Biology
Paddy J. Slator, Daniel Cromb, Laurence H. Jackson, Alison Ho, Serena J. Counsell, Lisa Story, Lucy C. Chappell, Mary Rutherford, Joseph Hajnal, Jana Hutter, Daniel C. Alexander
Summary: This study demonstrates and evaluates a combined diffusion-relaxation MRI acquisition and analysis pipeline for observing placental structure and function in normal pregnancies. By identifying distinct components, we identify seven potential placental microenvironments and reveal their trends across gestation.
Article
Mechanics
V. V. Kozlov, Yu. A. Litvinenko, M. M. Katasonov, D. V. Sarychev, A. G. Shmakov
Summary: This study presents the investigation results of the interaction between two colliding axisymmetric laminar microjets of propane-butane mixture with and without diffusion combustion. The gas mixture components flow out through round tubes at the same velocities. The distinctive features of the resulting jet formation are established as functions of the transverse position of the tubes. If the tubes lie in the same plane, then the resulting jet is formed in the plane orthogonal to them. This process can be observable in the case of the interaction between the jets both with and without flame. With increase in the jet outflow velocity a region of local discontinuity of the flame front is found to exist.
Article
Thermodynamics
Anurag Mishra, Pushan Sharma, Bisrat Yoseph Gebreyesus, Mayank Kumar, Anjan Ray
Summary: This study investigates the flame lengths under different fuel and oxidizer dilution conditions using experiments and numerical simulations. The results show that the flame length of the smaller diameter burner is consistently higher than that of the larger diameter burner. Several analytical models are compared, and a new model is proposed to predict flame lengths.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Mechanics
A. Poormahmood, M. Mahdi Salehi, M. Farshchi
Summary: A methodology using a presumed probability density function closure modeling approach and a regime diagram based on four non-dimensional variables has been developed to determine the necessity of closure modeling for low-Mach number mixing layers. A posteriori simulations show that the regime diagram effectively determines the necessity of closure modeling for density in turbulent flow.
Article
Thermodynamics
Dan Li, Yu Cheng Liu, Shuangfeng Wang
Summary: The study on nozzle-attached flames in laminar non-premixed jets found that the thickness of the fuel/air mixing layer at the flame base is narrow, and the burning speed is much greater than the local gas flow velocity, leading to the halt of partially premixed flame propagation within the mixing layer.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Studies
Reza Arasteh, Rahim Ali Abbaspour, Abdolrassoul Salmanmahiny
Summary: The study evaluated the data-driven evidential belief function model as a method for urban growth potential mapping and found it to be more effective compared to traditional approaches. The results showed that the evidential belief function and hybrid methods for non-path dependent urban growth potential mapping demonstrated reliability and accuracy.
ENVIRONMENT AND PLANNING B-URBAN ANALYTICS AND CITY SCIENCE
(2021)
Article
Statistics & Probability
Manon Costa, Sebastien Gadat
Summary: This work introduces a novel recursive stochastic algorithm for joint estimation of quantile and superquantile, utilizing Cesaro averaging and approximation techniques for improved accuracy. Sharp non-asymptotic bounds on the risk of the superquantile estimator are provided for different step size sequences, along with new non-asymptotic L-p-controls on the Robbins Monro algorithm for quantile estimation. A central limit theorem for the joint procedure is derived using the diffusion approximation perspective embedded in the stochastic algorithm.
ELECTRONIC JOURNAL OF STATISTICS
(2021)
Article
Physics, Applied
Uros Cvelbar, James L. Walsh, Mirko Cernak, Hindrik W. de Vries, Stephan Reuter, Thierry Belmonte, Carles Corbella, Camelia Miron, Natasa Hojnik, Andrea Jurov, Harinarayanan Puliyalil, Marija Gorjanc, Sabine Portal, Romolo Laurita, Vittorio Colombo, Jan Schaefer, Anton Nikiforov, Martina Modic, Ondrej Kylian, Martin Polak, Cedric Labay, Jose M. Canal, Cristina Canal, Matteo Gherardi, Kateryna Bazaka, Prashant Sonar, Kostya K. Ostrikov, David Cameron, Sabu Thomas, Klaus-Dieter Weltmann
PLASMA PROCESSES AND POLYMERS
(2019)
Article
Physics, Applied
Ronny Brandenburg, Annemie Bogaerts, Waldo Bongers, Alexander Fridman, Gregory Fridman, Bruce R. Locke, Vandana Miller, Stephan Reuter, Milko Schiorlin, Tiny Verreycken, Kostya (Ken) Ostrikov
PLASMA PROCESSES AND POLYMERS
(2019)
Article
Physics, Applied
Luka Hansen, Ansgar Schmidt-Bleker, Robert Bansemer, Holger Kersten, Klaus-Dieter Weltmann, Stephan Reuter
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2018)
Article
Multidisciplinary Sciences
Helena Jablonowski, Joao Santos Sousa, Klaus-Dieter Weltmann, Kristian Wende, Stephan Reuter
SCIENTIFIC REPORTS
(2018)
Correction
Physics, Applied
J. Golda, J. Held, B. Redeker, M. Konkowski, P. Beijer, A. Sobota, G. Kroesen, N. St J. Braithwaite, S. Reuter, M. M. Turner, T. Gans, D. O'Connell, V. Schulz-von der Gathen
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Optics
Benjamin M. Goldberg, Stephan Reuter, Arthur Dogariu, Richard B. Miles
Article
Engineering, Chemical
Piotr Terebun, Michal Kwiatkowski, Agnieszka Starek, Stephan Reuter, Young Sun Mok, Joanna Pawlat
Summary: The study demonstrates that pre-sowing plasma stimulation can improve the germination capacity and energy of onion seeds. The best results were obtained with a 10-second plasma treatment.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2021)
Editorial Material
Physics, Applied
Klaus-Dieter Weltmann, Masafumi Ito, Stephan Reuter, Michael R. Wertheimer
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Judit Buxadera-Palomero, Katja Fricke, Stephan Reuter, Francisco Javier Gil, Daniel Rodriguez, Cristina Canal
Summary: A rapid, one-step method for preparing acrylate-based coatings on titanium through atmospheric pressure plasma polymerization of HEMA is described in this study. The obtained hydrophilic coating showed retention of monomer chemistry and demonstrated enhanced fibroblast adhesion and decreased bacterial adhesion, making it a suitable method for producing biocompatible coatings.
APPLIED SCIENCES-BASEL
(2021)
Article
Physics, Fluids & Plasmas
Luka Hansen, Benjamin M. Goldberg, David Feng, Richard B. Miles, Holger Kersten, Stephan Reuter
Summary: The relationship between energy flux, flow dynamics, and applied electrical power of a nanosecond pulsed cold atmospheric pressure plasma jet in contact with a substrate surface was investigated. The study found a transition from laminar to turbulent flow at a lower Reynolds number than conventional values, and revealed changes in energy flux with different biasing conditions.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Mounir Laroussi, Sander Bekeschus, Michael Keidar, Annemie Bogaerts, Alexander Fridman, Xinpei Lu, Kostya Ostrikov, Masaru Hori, Katharina Stapelmann, Vandana Miller, Stephan Reuter, Christophe Laux, Ali Mesbah, James Walsh, Chunqi Jiang, Selma Mededovic Thagard, Hiromasa Tanaka, Dawei Liu, Dayun Yan, Maksudbek Yusupov
Summary: This article provides an overview of the applications of plasma in technology and healthcare, discusses innovative concepts and approaches to overcoming current challenges, and proposes ideas and concepts to guide future research efforts.
IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES
(2022)
Article
Physics, Multidisciplinary
XinPei Lu, Peter J. Bruggeman, Stephan Reuter, George Naidis, Annemie Bogaerts, Mounir Laroussi, Michael Keidar, Eric Robert, Jean-Michel Pouvesle, DaWei Liu, Kostya (Ken) Ostrikov
Summary: Low temperature plasmas (LTPs) play a crucial role in modern society, enabling various applications. However, researchers still face challenges in terms of health, energy, and sustainability before new applications can be widely adopted.
FRONTIERS IN PHYSICS
(2022)
Article
Physics, Applied
Sean Watson, Cedric Pattyn, Mansoureh Mohseni Garakani, Abdellah Ajji, Stephan Reuter, Michael R. Wertheimer
Summary: This study is the first to investigate the aging of two different rough surface structures, electrospun nanofibrous mats and flat films, for three biotechnologically relevant polymers. Two different plasma treatments were applied and the time-dependent surface compositions and water contact angles were analyzed. The results showed that these properties reached asymptotic values after approximately 30 days of storage, consistent with previous findings. Additionally, the time-dependent behaviors of the contact angles for the two types of samples were compared using Wenzel and Cassie-Baxter models, including possible transitions and their interpretation.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Physics, Fluids & Plasmas
Julien Bissonnette-Dulude, Sylvain Coulombe, Thomas Gervais, Stephan Reuter
Summary: In this study, a prototype device that combines microfluidics with plasma technology is proposed for the study of plasma-liquid interactions. The transport of reactive species generated by plasma in the liquid is investigated using colorimetric analysis of hydrogen peroxide concentration. The results show that this plasma-microfluidic prototype has great potential for fundamental research in plasma-liquid interactions, and opens the way for future combinations of plasma devices with standard microfluidic devices.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Barbora Tarabova, Petr Lukes, Malte U. Hammer, Helena Jablonowski, Thomas von Woedtke, Stephan Reuter, Zdenko Machala
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
