Article
Physics, Multidisciplinary
Nikola Vukman, Neven Soic, Martin Freer, Martin Alcorta, Devin Connolly, Petra Colovic, Thomas Davinson, Alessia Di Pietro, Annika Lennarz, Athanasios Psaltis, Chris Ruiz, Milivoj Uroic, Matthew Williams
Summary: An experimental study was conducted to observe the helium-cluster decays of the excited states of Be-12. The study discovered previously reported decays as well as a newly observed decay channel. This experiment provides important supplementary information for understanding the molecular structure of excited states in Be-12.
FRONTIERS IN PHYSICS
(2022)
Article
Biochemical Research Methods
Monika Bokor, Agnes Tantos
Summary: Protein secondary structure predictions were compared with experimental results, revealing that thymosin-beta(4) and stabilin-2 cytoplasmic domain are mainly disordered, consistent with experiments. Alpha-synuclein A53T mutant showed less predicted disorder compared to other variants, contrary to experimental NMR results.
JOURNAL OF PROTEOME RESEARCH
(2021)
Article
Engineering, Geological
Krystyna Kazimierowicz-Frankowska, Marek Kulczykowski
Summary: This paper discusses the accurate prediction of deformations of reinforced soil structures under serviceable loading and presents an effective analytical approach. The proposed methodology is validated through experimental verification, affirming its reliability and accuracy.
GEOTEXTILES AND GEOMEMBRANES
(2021)
Article
Engineering, Multidisciplinary
Xuan Liang, Albert C. To, Jianbin Du, Yongjie Jessica Zhang
Summary: Phononic crystals have gained popularity for their band gap property in sound wave propagation. Topology optimization has been used in the design of Phononic crystals, with a focus on single micro-scale topology optimization. The proposed quasi two-scale topology optimization framework is suitable for additive manufacturing and has been applied to design 2D phononic-like structures for sound transmission coefficient optimization.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Article
Physics, Nuclear
J. Chen, S. M. Wang, H. T. Fortune, J. L. Lou, Y. L. Ye, Z. H. Li, N. Michel, J. G. Li, C. X. Yuan, Y. C. Ge, Q. T. Li, H. Hua, D. X. Jiang, X. F. Yang, D. Y. Pang, F. R. Xu, W. Zuo, J. C. Pei, J. Li, W. Jiang, Y. L. Sun, H. L. Zang, N. Aoi, H. J. Ong, E. Ideguchi, Y. Ayyad, K. Hatanaka, D. T. Tran, D. Bazin, J. Lee, Y. N. Zhang, J. Wu, H. N. Liu, C. Wen, T. Yamamoto, M. Tanaka, T. Suzuki
Summary: A resonant state at 3.21 MeV above the one-neutron separation threshold was observed for the first time in Be-12, with a spin-parity of 0(-). Calculations using Gamow coupled-channel and Gamow shell model showed the significant influence of continuum coupling on the excitation energy and ordering of low-lying states. Various exotic structures in Be-12 and its isotonic nucleus Li-11 were compared in the study.
Article
Physics, Condensed Matter
Ashish Kumar Sharma, Pradeep Kumar, Arvind Kumar, Kim Jungbog, Agnikumar G. Vedeshwar
Summary: The electronic and optical properties of InI3 were investigated using experimental and theoretical approaches. The band gap was found to be direct, with dependency on residual strain. The calculations predicted a band gap value close to the experimentally determined value. The anisotropy of the band gap and effective mass of electrons and holes were determined from both theory and experiment. The theoretical and experimental optical properties showed reasonably good agreement.
SOLID STATE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Jian Gao, Zhongchang Sun, Huadong Guo, Lideng Wei, Yongjie Li, Qiang Xing
Summary: This paper introduces the modeling experiments of Ka-band airborne InSAR on typical topographies in China, and demonstrates the key methods and results for processing digital surface models and digital orthophoto maps. The experimental results show that the proposed phase unwrapping and block adjustment methods can provide reliable results under different terrain conditions.
Article
Materials Science, Multidisciplinary
Eduard Farber, Alexey Orlov, Evgenii Borisov, Arseniy Repnin, Stepan Kuzin, Nikita Golubkov, Anatoly Popovich
Summary: This paper presents a possible solution to the problems caused by the high stiffness and positive Poisson's ratio of modern implants. The results of simulation, fabrication, and study confirm that TiNi alloy lattice structures can help solve issues such as bone inflammation and implant detachment.
Article
Optics
A. Aguilar Uribe, P. Yazhgur, F. Scheffold
Summary: In this study, we experimentally investigate the properties of crystalline 3D Weaire-Phelan foam structures as photonic crystals. We generate templates on the computer and fabricate foam designs using DLW lithography. By using thermal processing to shrink the foam structures, we demonstrate experimentally that the resulting foam Plateau border networks possess stop bands within a specific wavelength range, with the exact wavelength dependent on the degree of shrinkage. We also explore the relationship between the position and strength of the stop gap and the solid filling fraction.
Article
Chemistry, Physical
Lizhen Fang, Tianxing Wang, Jingbo Li, Congxin Xia, Xueping Li
Summary: Building van der Waals heterostructures (vdWHs) is an effective method to broaden two-dimensional material applications. However, few broken-gap vdWHs have been realized, limiting the development of 2D materials in tunnel field-effect transistors. In this study, stable 2D C3N/MX vdWHs were theoretically designed using density functional theory, and the band-to-band tunneling and multifunctional band alignment were explored.
Article
Chemistry, Inorganic & Nuclear
Chen Li, Ke Liu, Dequan Jiang, Cheng Jin, Tianyao Pei, Ting Wen, Binbin Yue, Yonggang Wang
Summary: This study reports materials with negative, zero, and positive thermal expansion behaviors, which are hexagonal CrTe, monoclinic Cr3Te4, and trigonal Cr5Te8 in NiAs-type defective Cr1-delta Te. These materials show obvious anisotropic thermal expansion and the properties are confirmed to be originated from the magnetovolume effect through magnetic measurements. The materials with similar compositions but different structures provide a new research direction for tuning the negative thermal expansion properties of materials and searching for materials with zero thermal expansion.
INORGANIC CHEMISTRY
(2022)
Article
Physics, Nuclear
H. T. Fortune
Summary: The observed energy and width of the state at 6.02(15) MeV in Be-12, populated in the Be-11(d, p) reaction, are consistent with the expectations for the first 3+ state with dominant configuration Be-10(ground state) x(2s(1/ 2))(1d(5/ 2)).
Review
Mechanics
Nicolas Contreras, Xihong Zhang, Hong Hao, Francisco Hernandez
Summary: This paper provides a comprehensive review on the latest progress and potential applications of locally resonant metamaterials in civil engineering. The concepts and historical origins of metamaterials are introduced, along with the overview of analytical approaches and commonly used structures. Research gaps and future directions are also identified and discussed.
COMPOSITE STRUCTURES
(2024)
Article
Physics, Multidisciplinary
Ankur Das, Eyal Cornfeld, Sumiran Pujari
Summary: Topological insulator-based methods are used to classify gapped bands and semimetallic nodal defects. However, multiple bands with gap-closing points can also have nontrivial topology. A wave-function-based punctured-Chern invariant is constructed to capture this topology. It is shown to be applicable to systems with different gapless topologies.
PHYSICAL REVIEW LETTERS
(2023)
Article
Thermodynamics
Andrea Diani, Carlo Nonino, Luisa Rossetto
Summary: This study investigates the solid-liquid phase change process of three paraffin waxes with different melting temperatures embedded in aluminium structures. Experimental and numerical results show the effects of heat flux, melting temperature, and metal structure size on the heated surface temperature. The study also presents a simplified numerical model that can be used to design PCM-based heat sinks for electronics cooling.
APPLIED THERMAL ENGINEERING
(2022)
Article
Instruments & Instrumentation
M. Febbraro, B. Becker, R. J. deBoer, K. Brandenburg, C. Brune, K. A. Chipps, T. Danley, A. Di Fulvio, Y. Jones-Alberty, K. T. Macon, Z. Meisel, T. N. Massey, R. J. Newby, S. D. Pain, S. Paneru, S. Shahina, M. S. Smith, D. Soltesz, S. K. Subedi, I Sultana, R. Toomey
Summary: The study evaluates the performance of the maximum likelihood expectation maximization method for unfolding neutron energy spectra using deuterated liquid scintillator, and compares the unfolded neutron spectra with those obtained from neutron time-of-flight measurements. The effects of the MLEM stopping criteria and spectrum statistics are also investigated.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2021)
Article
Physics, Nuclear
Sam Bailey, Tzany Kokalova, Martin Freer, Carl Wheldon, Robin Smith, Joseph Walshe, Neven Soic, Lovro Prepolec, Vedrana Tokic, Francisco Miguel Marques, Lynda Achouri, Franck Delaunay, Marian Parlog, Quentin Deshayes, Beatriz Fernandez-Dominguez, Bertrand Jacquot
Summary: A novel experimental analysis method utilizing continuous wavelet transform and machine learning has been developed to rapidly identify alpha-clustering in nuclei with high nuclear state density. This technique was successfully applied in identifying fragmented alpha-clustering in Ti-44 and Ti-52, with less conclusive results for Ti-48.
EUROPEAN PHYSICAL JOURNAL A
(2021)
Review
Physics, Multidisciplinary
C. R. K. Windows-Yule, M. T. Herald, A. L. Nicusan, C. S. Wiggins, G. Pratx, S. Manger, A. E. Odo, T. Leadbeater, J. Pellico, R. T. M. de Rosales, A. Renaud, I Govender, L. B. Carasik, A. E. Ruggles, Tz Kokalova-Wheldon, J. P. K. Seville, D. J. Parker
Summary: Positron emission particle tracking (PEPT) is a high-resolution, three-dimensional imaging technique used for studying large, dense, and opaque particulate and multiphase systems. This research brings together experts from leading PEPT facilities to provide an overview, evaluation, and quantitative assessment of contemporary PEPT methodologies. The study includes detailed explanations and interactive code examples for algorithm exploration.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Instruments & Instrumentation
K. Brandenburg, G. Hamad, Z. Meisel, C. R. Brune, D. E. Carter, T. Danley, J. Derkin, Y. Jones-Alberty, B. Kenady, T. N. Massey, S. Paneru, M. Saxena, D. Soltesz, S. K. Subedi, J. Warren
Summary: This paper presents the research and application of the HeBGB neutron detector, which offers a constant neutron detection efficiency over a wide range of neutron energies, eliminating the systematic uncertainties present in previous measurements.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Instruments & Instrumentation
D. M. Hampel, S. Manger, D. J. Parker, Tz Kokalova Wheldon
Summary: Positron emission particle tracking (PEPT) is a powerful technique for studying flow inside engineering systems. The newly developed SuperPEPT positron camera has shown satisfactory sensitivity and data rates.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Multidisciplinary Sciences
J. Bishop, C. E. Parker, G. Rogachev, S. Ahn, E. Koshchiy, K. Brandenburg, C. R. Brune, R. J. Charity, J. Derkin, N. Dronchi, G. Hamad, Y. Jones-Alberty, Tz Kokalova, T. N. Massey, Z. Meisel, E. Ohstrom, S. N. Paneru, E. C. Pollacco, M. Saxena, N. Singh, R. Smith, L. G. Sobotka, D. Soltesz, S. K. Subedi, A. V. Voinov, J. Warren, C. Wheldon
Summary: This article discusses the impact of neutron upscattering on the triple-alpha process and confirms that the neutron upscattering enhancement is smaller than previously expected. This suggests that the neutron upscattering enhancement may not be significant except in specific astrophysical scenarios.
NATURE COMMUNICATIONS
(2022)
Article
Instruments & Instrumentation
A. B. Morelock, J. F. Perello, S. Almaraz-Calderon, B. W. Asher, K. Brandenburg, J. Derkin, G. Hamad, Y. Jones-Alberty, E. Lopez Saavedra, T. Massey, Z. Meisel, N. Singh, D. Soltesz, S. K. Subedi, A. Voinov, J. Warren
Summary: The CATRiNA deuterated neutron detector array at Florida State University has unique light output and pulse-shape discrimination capabilities, which are used to extract neutron energies via an unfolding method. The response matrices of the detectors were measured at the Edwards Accelerator Laboratory at Ohio University. Full characterization of the detectors using digital electronics, as well as a description of the unfolding method, is reported.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Nuclear Science & Technology
K. Brandenburg, G. Hamad, Z. Meisel, C. R. Brune, D. E. Carter, J. Derkin, D. C. Ingram, Y. Jones-Alberty, B. Kenady, T. N. Massey, M. Saxena, D. Soltesz, S. K. Subedi, J. Warren
Summary: We present results from direct measurements of the Al-27(alpha, n) thick-target yield in the energy range of approximately 3 to 5 MeV. Our measurements show general agreement with existing data sets, while resolving discrepancies and providing more accurate data for energies below 3.5 MeV. These results are important for estimating the contribution of Al-27(alpha, n) to neutrino and dark matter detector backgrounds, as well as for utilizing it as a plasma diagnostic tool in fusion facilities.
NUCLEAR SCIENCE AND ENGINEERING
(2023)
Article
Physics, Nuclear
M. Barbui, A. Volya, E. Aboud, S. Ahn, J. Bishop, V. Z. Goldberg, J. Hooker, C. H. Hunt, H. Jayatissa, Tz. Kokalova, E. Koshchiy, S. Pirrie, E. Pollacco, B. T. Roeder, A. Saastamoinen, S. Upadhyayula, C. Wheldon, G. V. Rogachev
Summary: This study compares α clustering in 18Ne and 18O nuclei through experimental measurements and theoretical models, finding that certain states exhibit more clustering properties than predicted, indicating a collective structure aligned towards the corresponding alpha reaction channel.
Article
Physics, Nuclear
G. Hamad, K. Brandenburg, Z. Meisel, C. R. Brune, D. E. Carter, D. C. Ingram, Y. Jones-Alberty, T. N. Massey, M. Saxena, D. Soltesz, S. K. Subedi, A. V. Voinov
Summary: This study measured the cross-section of the Zr-96(alpha, n) Mo-99 reaction and analyzed the results using large-scale Hauser-Feshbach calculations. The study found a larger cross-section at low energies compared to previous experimental results, which has important implications for the astrophysical reaction rate but does not significantly affect the conclusions about Mo-99 production for medical physics applications.
Article
Physics, Nuclear
B. Vande Kolk, K. T. Macon, R. J. deBoer, T. Anderson, A. Boeltzig, K. Brandenburg, C. R. Brune, Y. Chen, A. M. Clark, T. Danley, B. Frentz, R. Giri, J. Gorres, M. Hall, S. L. Henderson, E. Holmbeck, K. B. Howard, D. Jacobs, J. Lai, Q. Liu, J. Long, K. Manukyan, T. Massey, M. Moran, L. Morales, D. Odell, P. O'Malley, S. N. Paneru, A. Richard, D. Schneider, M. Skulski, N. Sensharma, C. Seymour, G. Seymour, D. Soltesz, S. Strauss, A. Voinov, L. Wustrich, M. Wiescher
Summary: This study aimed to improve the evaluation of the B-10(p, alpha) Be-7 reaction by conducting detailed research. Proton and alpha-particle signals were successfully resolved using different techniques, reducing the uncertainty of the cross section and clarifying the level structure. Overall, a more reliable and consistent description of the reaction has been established.
Article
Physics, Nuclear
T. N. Massey, J. E. O'Donnell, J. Ralston, S. M. Grimes, C. R. Brune, R. C. Haight
Summary: The B-10 +n system was investigated by measuring charged particles in the energy range of 1 to 20 MeV from neutron-induced reactions. Protons, deuterons, tritons, and alpha particles were measured at different angles using a pulsed white neutron spectrum. Differential cross sections for each particle species were reported, and an R-matrix analysis of the B-11 compound system was conducted by combining these new data with literature data. A comparison was made to molecular and cluster states observed in these reactions.
Article
Physics, Nuclear
A. V. Voinov, K. Brandenburg, C. R. Brune, R. Giri, S. M. Grimes, T. Massey, Z. Meisel, S. N. Paneru, A. L. Richard, G. Perdikakis, A. Falduto
Summary: Experimental study on the effect of the isovector imaginary optical potential for the B-11 + Ca-48 reaction showed that the imaginary potential component is crucial for reproducing proton and alpha-particle yields, and may even need to be enhanced compared to original model parametrizations. This finding could have significant implications for astrophysical reaction-rate calculations.
Article
Physics, Nuclear
A. M. McEvoy, H. W. Herrmann, Y. Kim, T. S. Sedillo, H. Geppert-Kleinrath, C. R. Brune, T. N. Massey, A. V. Voinov, C. E. Parker, M. S. Rubery, W. Stoeffl
Summary: Gamma-ray emissions from C-12 and C-13 samples irradiated with deuterium-tritium fusion neutrons were experimentally measured, showing significant emissions from the C-13(n, 2n gamma) C-12-L1 reaction channel. These measurements indicated the infeasibility of using C-13-based plastic ablators with embedded C-12 layers for dark mix diagnosis of inertial confinement fusion implosions.
