Relevant bibliographies by topics / ACA2021

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  1. Journal articles

Academic literature on the topic 'ACA2021'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "ACA2021"

1

Scholz, Dieter. "Routes of Aircraft Cabin Air Contamination from Engine Oil, Hydraulic and Deicing Fluid." INCAS Bulletin 14, no. 1 (2022): 153–70. https://doi.org/10.13111/2066-8201.2022.14.1.13.

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<strong>Purpose</strong>: This paper discusses potential contamination of the air in passenger aircraft cabins. It gives an overview of cabin air contamination basics. It further names possible contamination sources and possible routes of contamination. <strong>Methodology</strong>: Evidence follows from a review of material found on the Internet and from the documentation of a visit to an aircraft recycling site. Parts were retrieved at the site and investigated later with more time. <strong>Findings</strong>: Jet engine seals leak oil in small quantities. Metallic nanoparticles are found in
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Gabelli, Sandra, Ampon Saeher, and Jill Chrencik. "#IAmRemarkable." Structural Dynamics 12, no. 2_Supplement (2025): A343. https://doi.org/10.1063/4.0000649.

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In recent years, there has been a growing recognition of the importance of self-promotion and self-advocacy, particularly for underrepresented groups in various professional fields. The #IAmRemarkable initiative aims to empower individuals to speak openly about their accomplishments and combat societal norms that often discourage self-promotion, particularly among women and other marginalized groups. At ACA2024, we are excited to offer a special session dedicated to the #IAmRemarkable movement. This session will provide participants with the opportunity to explore the significance of self-prom
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3

Robbins, Stuart J. "Inconsistency between the Ancient Mars and Moon Impact Records of Megameter-scale Craters." Planetary Science Journal 3, no. 12 (2022): 274. http://dx.doi.org/10.3847/psj/aca282.

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Abstract Impact crater populations provide a record of the bombardment history of a planetary body. These craters reveal an intense bombardment history on Earth's Moon that included significant, large impacts, at least four of which created craters larger than ∼1000 km across more than 3.7 Ga. Scaling the lunar impact crater history to Mars using generally well-established scaling rules indicates Mars should have ∼40–80 similarly sized, ancient craters. However, Mars has roughly seven. This is a nontrivial mismatch between observation and expectation. Possible methods to resolve the mismatch a
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4

Zhu, Yifeng, Xinhua Fu, and Lintao Yu. "Simultaneous red, green and blue laser operations in a Pr3+:LiYF4 crystal." Laser Physics 33, no. 1 (2022): 015001. http://dx.doi.org/10.1088/1555-6611/aca292.

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Abstract We report on the first, to the best of our knowledge, simultaneous continuous-wave red, green and blue laser operations in praseodymium-doped crystalline materials. At an absorbed pump power of 4.7 W (or 10 W of incident pump power), the maximum output power was 665 mW, which included 607 nm (red), 523 nm (green) and 479 nm (blue) three wavelengths, and the optical conversion efficiency with respect to the absorbed pump power was 14.1%.
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5

Razhev, A. M., E. S. Kargapol `tsev, D. S. Churkin, and I. A. Trunov. "Pulsed inductive CO2 laser with radio-frequency excitation and influence of the H2 content on the efficiency and lasing temporal characteristics." Laser Physics 33, no. 1 (2022): 015002. http://dx.doi.org/10.1088/1555-6611/aca291.

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Abstract In 2021, data on the effective pulsed gas discharge inductive CO2 laser with radio-frequency (RF) excitation were published with a pulse output energy of E∼ 1 J (the efficiency η∼ 14.5%) on the gas mixture He:N2:CO2 = 8:2:1. The efficiency of the developed CO2 laser had exceeded the value η∼ 21% at E∼ 350 mJ. At the beginning of 2022, it was shown that xenon addition (Xe = 4%) to the gas mixture made it possible to achieve an efficiency of η∼ 27% at an output energy of E∼ 600 mJ. For the first time, the effect of hydrogen additives in the active medium (He:N2:CO2:H2 and N2:CO2:H2 gas
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6

Haga, Taiki, and Shin-ich Sasa. "Interscale entanglement production in a quantum system simulating classical chaos." Journal of Statistical Mechanics: Theory and Experiment 2022, no. 12 (2022): 123102. http://dx.doi.org/10.1088/1742-5468/aca2a1.

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Abstract It is a fundamental problem how the universal concept of classical chaos emerges from the microscopic description of quantum mechanics. We here study standard classical chaos in a framework of quantum mechanics. In particular, we design a quantum lattice system that exactly simulates classical chaos after an appropriate continuum limit, which is called the ‘Hamiltonian equation limit’. The key concept of our analysis is an entanglement entropy defined by dividing the lattice into many blocks of equal size and tracing out the degrees of freedom within each block. We refer to this entro
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7

Nunes, Pollyanna Vicente, and Fábio Armando Tal. "Transitivity and the existence of horseshoes on the 2-torus." Nonlinearity 36, no. 1 (2022): 199–230. http://dx.doi.org/10.1088/1361-6544/aca252.

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Abstract We study the relationship between transitivity and topological chaos for homeomorphisms of the two torus. We show that if a transitive homeomorphism of T 2 is homotopic to the identity and has both a fixed point and a periodic point which is not fixed, then it has a topological horseshoe. We also show that if a transitive homeomorphisms of T 2 is homotopic to a Dehn twist, then either it is aperiodic or it has a topological horseshoe.
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8

Borsato, Riccardo, and Emanuel Malek. "Integrability, dualities and deformations." Journal of Physics A: Mathematical and Theoretical 55, no. 46 (2022): 460301. http://dx.doi.org/10.1088/1751-8121/aca22f.

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Abstract We present a special issue reviewing various topics that include: classical and quantum integrability, integrable deformations, the 4D Chern–Simons theory, double field theory and α ′ -corrections in string theory.
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9

Middei, Riccardo, Ioannis Liodakis, Matteo Perri, et al. "X-Ray Polarization Observations of BL Lacertae." Astrophysical Journal Letters 942, no. 1 (2022): L10. http://dx.doi.org/10.3847/2041-8213/aca281.

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Abstract Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped spectral energy distribution. It is of common consensus that the synchrotron emission is responsible for the low frequency peak, while the origin of the high frequency hump is still debated. The analysis of X-rays and their polarization can provide a valuable tool to understand the physical mechanisms responsible for the origin of high-energy emission of blazars. We report the first observations of BL Lacertae (BL Lac) performed with the Imaging X-ray Polarimetry Explorer, from which an upper limi
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10

Xu, Han, Xiangxia Ren, Weiguo Song, Jun Zhang, and Rayyan Saidahmed. "Spatial and temporal analysis of the bottleneck flow under different walking states with a moving obstacle." Journal of Statistical Mechanics: Theory and Experiment 2023, no. 1 (2023): 013401. http://dx.doi.org/10.1088/1742-5468/aca2a2.

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Abstract The regulation of a moving obstacle on crowd movement offers the possibility to enhance evacuation efficiency in emergency situations. In this paper, a series of controlled experiments are conducted to study the effect of the moving obstacle on crowd dynamics for pedestrians in three different competitive levels, which respectively correspond to three different walking states. The enhancement effects of the moving obstacle on evacuation efficiency for the crowd in the dual-task and high-motivated walking states are confirmed, and the positions of the moving obstacle are crucial. It is
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