Article
Geosciences, Multidisciplinary
Nico Graebling, Ozgur Ozan Sen, Lars Bilke, Tuanny Cajuhi, Dmitri Naumov, Wenqing Wang, Gesa Ziefle, David Jaeggi, Jobst Massmann, Gerik Scheuermann, Olaf Kolditz, Karsten Rink
Summary: Underground Research Laboratories (URLs) allow large-scale geoscientific in-situ experiments. At Mont Terri URL in Switzerland, international research groups conduct numerous experiments, but the data obtained is often restricted to the researchers involved in the specific experiment.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Physics, Multidisciplinary
Hongqiang Song, Qiang Hu, Xin Cheng, Jie Zhang, Leping Li, Ake Zhao, Bing Wang, Ruisheng Zheng, Yao Chen
Summary: Coronal mass ejections (CMEs) are energetic explosions in the solar system caused by eruptions of magnetic flux ropes known as magnetic clouds (MCs). The composition of CMEs, including ionic charge states and elemental abundances, remains constant during propagation, with inhomogeneity observed within the cloud axis. Research shows significant differences in ionic charge states for carbon along the axis, with slight but noticeable differences for oxygen and iron charge states and elemental abundances.
FRONTIERS IN PHYSICS
(2021)
Article
Ecology
Zhen Lin, Jinye Xie, Shuo Tian, Xihong Wang, Wenfu Sun, Xiaoqin Mo
Summary: The traditional spraying system is not suitable for small plots in agricultural plant protection, which leads to waste and environmental pollution. By combining agricultural plant protection vehicles and electrostatic spray technology, the efficiency of plant protection and pesticide utilization can be improved.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Physics, Multidisciplinary
T. Okumura, T. Azuma, D. A. Bennett, I. Chiu, W. B. Doriese, M. S. Durkin, J. W. Fowler, J. D. Gard, T. Hashimoto, R. Hayakawa, G. C. Hilton, Y. Ichinohe, P. Indelicato, T. Isobe, S. Kanda, M. Katsuragawa, N. Kawamura, Y. Kino, K. Mine, Y. Miyake, K. M. Morgan, K. Ninomiya, H. Noda, G. C. O'Neil, S. Okada, K. Okutsu, N. Paul, C. D. Reintsema, D. R. Schmidt, K. Shimomura, P. Strasser, H. Suda, D. S. Swetz, T. Takahashi, S. Takeda, S. Takeshita, M. Tampo, H. Tatsuno, Y. Ueno, J. N. Ullom, S. Watanabe, S. Yamada
Summary: We performed high precision x-ray spectroscopy of the 5g-4f and 5f- 4d transitions of muonic neon atoms to test bound-state quantum electrodynamics in the strong-field regime. Using superconducting transition-edge sensor microcalorimeters, we determined the 5g9/2-4f7/2 transition energy to be 6297.08 +/- 0.04(stat) +/- 0.13(syst) eV, which agrees well with the most advanced BSQED theoretical prediction of 6297.26 eV.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
Yong Liu, Siqi Zhu, Zhen Zhang, Qiong Sun, Cao Wu, Wenbin Gong, Lixing Kang, Yong Yang
Summary: Rechargeable zinc-ion batteries (ZIBs) utilizing zinc-manganese oxide as the cathode showed impressive capacity and cycling stability. The use of an ultra-thin monocrystalline structure enhanced the electro-chemical reaction, improved surface interface interactions, and facilitated ion diffusion kinetics. This study provides a novel methodology for the development of high-performance and mass-produced ZIBs systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Astronomy & Astrophysics
G. H. Choi, E. S. Seo, S. Aggarwal, Y. Amare, D. Angelaszek, D. P. Bowman, Y. C. Chen, M. Copley, L. Derome, L. Eraud, C. Falana, A. Gerrety, J. H. Han, H. G. Huh, A. Haque, Y. S. Hwang, H. J. Hyun, H. B. Jeon, J. A. Jeon, S. Jeong, S. C. Kang, H. J. Kim, K. C. Kim, M. H. Kim, H. Y. Lee, J. Lee, M. H. Lee, L. Lu, J. P. Lundquist, L. Lutz, A. Menchaca-Rocha, O. Ofoha, H. Park, I. H. Park, J. M. Park, N. Picot-Clemente, R. Scrandis, J. R. Smith, R. Takeishi, N. Vedenkin, P. Walpole, R. P. Weinmann, H. Wu, J. Wu, Z. Yin, Y. S. Yoon, H. G. Zhang
Summary: The ISS-CREAM experiment recorded data for 539 days and reported the energy spectrum of cosmic-ray protons. The measured spectrum deviates from a single power law and shows a softening structure at high energies.
ASTROPHYSICAL JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Keita Yasuda
Summary: Students conducted a laboratory experiment using TBAB ionic semiclathrate hydrate, observing its formation at different concentrations in TBAB aqueous solutions. The experiment allowed students to learn about the fundamentals of ionic semiclathrate hydrates and their potential applications as thermal storage materials. Most students understood the experiment well and achieved an average score of approximately 80% in their reports.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Electrochemistry
Ilya I. Ryzhkov, Margarita A. Shchurkina, Elena Mikhlina, Mikhail M. Simunin, Ivan Nemtsev
Summary: Nanoporous membranes with electrically conductive surface are an important class of stimuli-responsive materials. The variation of surface potential allows for adjusting ionic selectivity, conductivity, and rejection. This work focuses on the theoretical and experimental study of switchable ionic selectivity, providing insights into ion transport in stimuli-responsive membranes operated by electric field.
ELECTROCHIMICA ACTA
(2021)
Article
Biotechnology & Applied Microbiology
Stefanie Van Wychen, Steven M. Rowland, Kaitlin C. Lesco, Peter Shanta, Tao Dong, Lieve M. L. Laurens
Summary: Opportunities in biomass production and bioproduct isolation from algae-derived feedstocks are promising, but the lack of validated compositional analysis methods poses a challenge. Utilizing a bottom-up approach for algal biomass characterization can help achieve full mass balance and economic potential.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Claudia Revilla Pacheco, Melani Ruth Riveros Cruz, Jaime Cardenas Garcia, Ruly Teran Hilares, Gilberto de Jesus Colina Andrade, David A. Pacheco Tanaka, Alejandra Mogrovejo-Valdivia
Summary: This study investigates the adsorption and Fenton activity of FeOCl using rhodamine B and bromocresol green as pollutant models at different pH values. The results show that adsorption and Fenton reactions occur simultaneously, with the extent depending on the pH and the type of pollutant. FeOCl exhibits potential as a catalyst for Fenton, photo-Fenton, and photocatalysis, but its activity is greatly influenced by humidity and the ionic charge of the contaminant.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chengjun Li, Qizheng Zheng, Qin Xiang, Li Yu, Peng Chen, Danmei Gao, Qinsong Liu, Fengling He, Danmei Yu, Yuping Liu, Changguo Chen
Summary: The new advanced electrochemical laboratory experiment is designed for undergraduates to master the preparation of oxygen reduction catalytic electrode, evaluate ORR catalyst properties, and understand the kinetics mechanism. Students will deeply understand the ORR mechanism and improve their data processing and comprehensive analysis skills through this comprehensive experiment.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Instruments & Instrumentation
Xinbei Jiang, Li Zhao, Shaobo Wang, Jia Fu, Tianjie Wu, Jianglai Liu
Summary: This paper describes the development of an economical and efficient cryogenic system prototype for a future liquid xenon detector. The prototype's test module, equipped with a specially designed copper rod, successfully transfers heat loads to a free-boiling liquid nitrogen bath. By comparing the performance of the test module and commercial refrigerators, it is found that the module with an optimized copper rod can achieve a cooling power of over 1500W at 178K, while maintaining a stable cold head temperature with a small error and fluctuation.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Mechanics
Pu Gao, Hongcai Li, Hui Liu, Changle Xiang
Summary: This article presents a detailed design and manufacturing process of an innovative torsional vibration absorber with magnetorheological elastomers (MREs) as its core intelligent element. A series of experiments are carried out to evaluate the vibration reduction performance and feasibility of the new vibration absorber.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Energy & Fuels
Elen Lobato, Lucas Prazeres, Iago Medeiros, Felipe Araujo, Denis Rosario, Eduardo Cerqueira, Maria Tostes, Ubiratan Bezerra, Wellington Fonseca, Andreia Antloga
Summary: Among the main problems faced in electric mobility today, the management and monitoring of charging stations, technology integration, and scalability stand out. In this research, an electric vehicle charging system was implemented and integrated in an Amazon region pilot project. The system showed good performance in receiving and sending data from 160 charging stations, with low CPU and memory consumption. It also supports horizontal scalability, making it suitable for other integrated systems. The implemented system allows for charging station management and monitoring, technology integration, scalability, and provides a reference architecture for the Amazon region.
Article
Chemistry, Physical
Mohammed Arab Ait Tayeb, Noureddine Tchouar, Francois Alexandre Miannay, Abdenacer Idrissi
Summary: In this study, the impact of C(4)mimBF(4)/acetonitrile mixture composition on charge transfer in Coumarin 153 after photoexcitation was investigated using DFT and TD-DFT. The results suggest that the effect of the mixture composition on the charge transfer in C153 is weak, as indicated by small changes in descriptors.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Astronomy & Astrophysics
D. J. McComas, T. Sharma, E. R. Christian, C. M. S. Cohen, M. I. Desai, M. E. Hill, L. Y. Khoo, W. H. Matthaeus, D. G. Mitchell, F. Pecora, J. S. Rankin, N. A. Schwadron, J. R. Szalay, M. M. Shen, C. R. Braga, P. S. Mostafavi, S. D. Bale
Summary: We report the first direct measurements of the particle and field environments of a coronal mass ejection (CME) leg very close to the Sun using observations from Parker Solar Probe (PSP). The observations showed a complete dropout in low-energy solar energetic ions, while the magnetic field and solar wind plasma did not show significant changes at the boundaries of the dropout. The CME leg was found to be significantly different from the assumed magnetic and plasma structure of CMEs near the Sun and observed in interplanetary CMEs farther out in the solar wind.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Bishwas L. Shrestha, Eric J. Zirnstein, David J. McComas
Summary: In this study, the evolution of polar coronal holes (PCHs) is investigated using high-time resolution ENA flux measurements from IBEX-Hi. The PCHs are identified by ENA spectral indices <1.8. The results show a periodic evolution of the ENA spectral index over the poles, with a slight increase in the surface area with flatter ENA spectra from 2009-2011 and a gradual decrease from 2012-2014. The PCH completely disappears in 2016 and reappears starting in 2017, gradually growing until 2019, showing a clear correlation with the change in the PCH area observed at the Sun.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
J. G. Mitchell, C. M. S. Cohen, T. J. Eddy, C. J. Joyce, J. S. Rankin, M. M. Shen, G. A. de Nolfo, E. R. Christian, D. J. McComas, R. L. McNutt, M. E. Wiedenbeck, N. A. Schwadron, M. E. Hill, A. W. Labrador, R. A. Leske, R. A. Mewaldt, D. G. Mitchell, J. R. Szalay
Summary: Energetic charged particles, including solar energetic particle events, stream and corotating interaction regions, galactic cosmic rays, anomalous cosmic rays, and suprathermal ions, are widely present in the heliosphere. The Integrated Science Investigation of the Sun (IS circle dot IS) on board the Parker Solar Probe measures energetic particles closer to the Sun than any instrument suite in history, providing a unique view of the previously unexplored energetic particle population. To facilitate efficient use of IS circle dot IS data, an online living catalog of energetic particle enhancements observed by the IS circle dot IS instruments has been developed.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2023)
Review
Astronomy & Astrophysics
N. E. Raouafi, L. Matteini, J. Squire, S. T. Badman, M. Velli, K. G. Klein, C. H. K. Chen, W. H. Matthaeus, A. Szabo, M. Linton, R. C. Allen, J. R. Szalay, R. Bruno, R. B. Decker, M. Akhavan-Tafti, O. V. Agapitov, S. D. Bale, R. Bandyopadhyay, K. Battams, L. Bercic, S. Bourouaine, T. A. Bowen, C. Cattell, B. D. G. Chandran, R. Chhiber, C. M. S. Cohen, R. D'Amicis, J. Giacalone, P. Hess, R. A. Howard, T. S. Horbury, V. K. Jagarlamudi, C. J. Joyce, J. C. Kasper, J. Kinnison, R. Laker, P. Liewer, D. M. Malaspina, I. Mann, D. J. McComas, T. Niembro-Hernandez, T. Nieves-Chinchilla, O. Panasenco, P. Pokorny, A. Pusack, M. Pulupa, J. C. Perez, P. Riley, A. P. Rouillard, C. Shi, G. Stenborg, A. Tenerani, J. L. Verniero, N. Viall, A. Vourlidas, B. E. Wood, L. D. Woodham, T. Woolley
Summary: Launched in 2018, NASA's Parker Solar Probe has completed 13 orbits around the Sun by November 2022, exceeding expectations in terms of data quantity and quality. The mission aims to study the Sun's coronal magnetic field, solar corona and wind heating and acceleration, and energetic particle acceleration processes. The probe has contributed to numerous discoveries, resulting in nearly 700 peer-reviewed publications.
SPACE SCIENCE REVIEWS
(2023)
Article
Astronomy & Astrophysics
C. Phillips, R. Bandyopadhyay, D. J. McComas, S. D. Bale
Summary: Several studies have shown that intermittent structures in the near-Earth environment are important for energy dissipation and particle energization. Recent data from the Parker Solar Probe (PSP) suggest that proton heating is concentrated near coherent structures in the near-Sun environment. This study explores whether electrons exhibit similar behavior and finds that electron temperature is enhanced near strong discontinuities, supporting the inhomogeneous heating of electrons near intermittent structures.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Georgios Nicolaou, George Livadiotis, David J. McComas
Summary: We analyze proton bulk parameters derived from Ulysses observations and investigate the polytropic behavior of solar wind protons. The large-scale variations of the proton density and temperature indicate subadiabatic processes. The polytropic index does not depend on solar wind speed and varies slightly over the range of heliocentric distances and latitudes explored by Ulysses.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
N. Andres, R. Bandyopadhyay, D. J. McComas, J. R. Szalay, F. Allegrini, R. W. Ebert, D. J. Gershman, J. E. P. Connerney, S. J. Bolton
Summary: In this study, the first estimation of the energy cascade rate in Jupiter's magnetosheath is presented. In situ observations and compressible models are used to investigate the cascade rate in the magnetohydrodynamic scales. The study finds that while there are high levels of compressible density fluctuations in Jupiter's magnetosheath, there is a constant energy flux in the magnetohydrodynamic range. The energy cascade rate in Jupiter's magnetosheath is at least two orders of magnitude smaller than the typical value in Earth's magnetosheath.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
J. S. Rankin, D. J. McComas, E. J. Zirnstein, L. F. Burlaga, J. Heerikhuisen
Summary: The magnetic field observations of the Voyager missions and the IBEX mission have provided insights into the structure of the interstellar magnetic field and raised questions about its global behavior. The discrepancies between the measurements and predictions indicate a need for further investigation.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Astronomy & Astrophysics
M. A. Dayeh, E. J. Zirnstein, D. J. McComas
Summary: Since its discovery in 2009, the IBEX ENA Ribbon has been extensively studied. It is a circular structure with a width of approximately 20-40 degrees, appearing at energies ranging from 0.5-6 keV. A novel method is presented to determine the boundaries and transverse profile of the Ribbon using sequential time variations of ENA fluxes, providing insight into the underlying processes. The results demonstrate the potential of this method for upcoming ENA measurements.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Astronomy & Astrophysics
P. Swaczyna, M. Bzowski, S. A. Fuselier, A. Galli, J. Heerikhuisen, M. A. Kubiak, D. J. McComas, E. Mobius, F. Rahmanifard, N. A. Schwadron
Summary: The response of the IBEX-Lo instrument to helium atoms is analyzed using the observations in ESA steps 1-4. The ratios of observed count rates are compared to the mean energy of the interstellar neutral helium atoms estimated using the Warsaw Test Particle Model. The obtained relative responses supplement the laboratory calibration and facilitate in-depth quantitative studies of the interstellar neutral helium signal.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2023)
Article
Geosciences, Multidisciplinary
Y. Sarkango, J. R. Szalay, A. R. Poppe, Q. Nenon, P. Kollmann, G. Clark, D. J. McComas
Summary: Using data from Juno spacecraft, we analyzed the distribution of energetic protons within Jupiter's inner magnetosphere. Protons with energies between 10 and 50 keV were found to align with the magnetic field, while those above 200 keV showed pancake-like distributions. These distributions suggest charge exchange or adiabatic acceleration of protons from Jupiter's middle magnetosphere.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Astronomy & Astrophysics
G. Livadiotis, D. J. McComas, E. J. Zirnstein
Summary: This study investigates the thermodynamics of plasma protons in the polar regions of the inner heliosheath (IHS) and its connection with solar activity. Based on the year of energetic neutral atom creation, the thermodynamic parameters of the plasma are characterized and the temperatures are statistically analyzed. Autocorrelation analysis is then performed between the IHS temperature and solar activity using sunspot number and fractional area of polar coronal holes as proxies. The findings demonstrate a high correlation between IHS proton temperatures and sunspot number, as well as a high negative correlation between proton plasma temperature and coronal hole fractional areas.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Laxman Adhikari, Gary P. Zank, Bingbing Wang, Lingling Zhao, Daniele Telloni, Alex Pitna, Merav Opher, Bishwas Shrestha, David J. McComas, Katariina Nykyri
Summary: This study develops a nearly incompressible magnetohydrodynamic (NI MHD) theory for beta similar to 1 (or beta << 1) plasma, and applies it to the study of solar wind turbulence. The theory accurately describes the majority of 2D turbulence in beta similar to 1 or beta << 1 plasma, while also incorporating the minority of slab turbulence. By coupling the NI MHD turbulence transport equations with three fluid equations, the model is able to successfully predict the behavior of the solar wind turbulence.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
P. Swaczyna, M. Bzowski, J. Heerikhuisen, M. A. Kubiak, F. Rahmanifard, E. J. Zirnstein, S. A. Fuselier, A. Galli, D. J. McComas, E. Mobius, N. A. Schwadron
Summary: In-situ observations of interstellar neutral helium atoms are used to determine the velocity and temperature of the pristine very local interstellar medium (VLISM). The observations are compared with a parameterized model of helium transport in the heliosphere, taking into account filtration processes at the heliospheric boundaries. The derived pristine VLISM parameters provide insights into the interstellar conditions, and a strong correlation between interstellar plasma density and magnetic field strength is demonstrated.
ASTROPHYSICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
S. A. Fuselier, S. M. Petrinec, K. J. Trattner, K. Llera, J. L. Burch, D. J. Gershman, M. A. Dayeh, N. Schwadron, H. O. Funsten, D. J. Mccomas
Summary: In this study, in situ ion measurements and remote sensing of energetic neutral atoms are combined to determine the geocoronal Hydrogen density at large distances from the Earth. The accuracy of using global models to predict the geocoronal density is evaluated by comparing with observations from the Magnetospheric Multiscale mission. The gas dynamic and magnetohydrodynamic (MHD) models generally agree with the observations, but variations around averages indicate relatively large uncertainties in geocoronal density estimates. Fluctuations in density have minimal impact on the critical ion flux in the Interstellar Boundary Explorer IBEX-Hi energy range.
GEOPHYSICAL RESEARCH LETTERS
(2023)