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Petr Kadlec
This paper aims to solve the space robot pathfinding problem, formulated as a multi-objective (MO) optimization problem with a variable number of dimensions (VND). This formulation enables the search and comparison of potential solutions with different m...
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Shuangxi Liu, Fengping Huang, Binbin Yan, Tong Zhang, Ruifan Liu and Wei Liu
In an effort to maximize the combat effectiveness of multimissile groups, this paper proposes an adaptive simulated annealing?particle swarm optimization (SA-PSO) algorithm to enhance the design parameters of multimissile formations based on the concept ...
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Larisa V. Migal,Vladimir G. Bondarev,Tatiana P. Bondareva,Irina N. Belyaeva
The article considers a mathematical model of the coordination number, which allows obtaining an equation for multi component spherical packing in the entire range of its change. The resulting model can be used in both 2-d and 3-d spaces. The concept of ...
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Barouch Giechaskiel
Dilution at the tailpipe minimizes the differences of the sub-23 nm nonvolatile particle measurements between tailpipe and dilution tunnel.
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Barouch Giechaskiel, Tero Lähde, Matthias Schwelberger, Timo Kleinbach, Helge Roske, Enrico Teti, Tim van den Bos, Patrick Neils, Christophe Delacroix, Tobias Jakobsson and Hua Lu Karlsson
Particle number measurements directly from the tailpipe of heavy-duty engines are possible for type approval regulatory purposes.
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Nuray Gedik
In coastal engineering, empirical formulas grounded on experimental works regarding the stability of breakwaters have been developed. In recent years, soft computing tools such as artificial neural networks and fuzzy models have started to be employed to...
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Laura Corlin, Shannon Ball, Mark Woodin, Allison P. Patton, Kevin Lane, John L. Durant and Doug Brugge
Emerging evidence suggests long-term exposure to ultrafine particulate matter (UFP, aerodynamic diameter < 0.1 µm) is associated with adverse cardiovascular outcomes. We investigated whether annual average UFP exposure was associated with measur...
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Ola M. Surakhi, Martha Arbayani Zaidan, Sami Serhan, Imad Salah and Tareq Hussein
Time-series prediction is an important area that inspires numerous research disciplines for various applications, including air quality databases. Developing a robust and accurate model for time-series data becomes a challenging task, because it involves...
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Stefania Squizzato, Mauro Masiol, Fereshteh Emami, David C. Chalupa, Mark J. Utell, David Q. Rich and Philip K. Hopke
The northeastern United States has experienced significant emissions reductions in the last two decades leading to a decrease in PM2.5, major gaseous pollutants (SO2, CO, NOx) and ultrafine particles (UFPs) concentrations. Emissions controls were impleme...
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Yong-Wook Jeong and Woochang Jeong
The aim of this study is to numerically analyze spatial behaviors of solute particle transport in a single fracture with spatially correlated variable apertures under application of effective normal stress conditions. The numerical results show that solu...
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Matteo Bo, Pietro Salizzoni, Marina Clerico and Riccardo Buccolieri
Background: Air pollution is a major global environmental risk factor. Since people spend most of their time indoors, the sole measure of outdoor concentrations is not sufficient to assess total exposure to air pollution. Therefore, the arising interest ...
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Eugene N. A. Hoffman, Elijah J. LaLonde, Angelina Andrade, Ivana Chen, Hayden A. Bilbo and Christopher S. Combs
The characterization of a hypersonic impulse facility is performed using a variety of methods including Pitot probe scans, particle image velocimetry, and schlieren imaging to verify properties such as the velocity, Mach number, wall boundary layer thick...
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Dario Friso
The prediction of the terminal velocity of a single spherical particle is essential to realize mathematical modeling useful for the design and adjustment of separators used in wastewater treatment. For non-spherical and non-single particles, terminal vel...
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Tooran Tavangar, Hesam Tofighian and Ali Tarokh
Particle-laden jet flows can be observed in many industrial applications. In this investigation, the horizontal motion of particle laden jets is simulated using the Eulerian?Lagrangian framework. The two-way coupling is applied to the model to simulate t...
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Xiaocheng Wang, Hui Zhao and Li Li
Collective behaviors in nature and human societies have been intensively studied in recent decades. The Vicsek model is one of the typical models that explain self-ordered particle systems well. In the original Vicsek model, the neighbor strategy takes a...
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Yajun Zhu, Chengwen Zhong and Kun Xu
The gas-kinetic scheme (GKS) and the unified gas-kinetic scheme (UGKS) are numerical methods based on the gas-kinetic theory, which have been widely used in the numerical simulations of high-speed and non-equilibrium flows. Both methods employ a multisca...
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Nicholas Bojdo and Antonio Filippone
There have been several recorded mishaps of rotorcraft experiencing flame-out due to engine surge as a result of rapid accumulation of sand and dust on nozzle guide vanes. Minerals such as sodium chloride and albite have lower melting points than quartz ...
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Andi Trimulyono, Hirotada Hashimoto and Akihiko Matsuda
This study aimed to validate the single-phase and two-phase smoothed particle hydrodynamics (SPH) on sloshing in a tank. There have been many studies on sloshing in tanks based on meshless particle methods, but few researchers have used a large number of...
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Rikke Bramming Jørgensen and Ida Teresia Kero
Airborne particulate matter in the silicon carbide (SiC) industry is a known health hazard. The aims of this study were to elucidate whether the particulate matter generated inside the Acheson furnace during active operation is representative of the over...
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Qian Wang, Jianmin Bian, Yihan Li, Chunpeng Zhang and Fei Ding
For reactive transport process in porous media, limited mixing and non-Fickian behavior are difficult to understand and predict. To explore the effects of anomalous diffusion and limited mixing, the column-based experiments of bimolecular reactive migrat...
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