bluuebunny/crossref_metadata_2025_split huggingface dataset:
Physical phenomena of a cold plasma jet model at atmospheric pressure
Authors: Boudjadar A , Bouanaka F , Rebiaï S 
Published: November 2022

Abstract
In this work, a two dimensional (2D) axisymmetric fluid model for an atmospheric pressure plasma jet (APP jet) driven by a 8 kV voltage pulse with a repetition frequency of 50 kHz has been investigated. The aim is to identify the physical phenomena taking place in a cold plasma jet at atmospheric pressure assuming an argon pathway in the air. This model is a platform for future works where the simulated reactor will be used for different plasma jet applications. It is built through the coupling between plasma discharge and flow physics using COMSOL@ Multi-physics software. The simulation results showed that the high value of the electric field in the head of the plasma jet channel attracts free electrons and ensures its propagation to around 1cm of length with an electron density of 1020 m−3. We have also shown that electrons in the neutral zone of the plasma (channel) have a lower temperature compared to electrons in electrostatic sheaths (channel boundaries), although, their temperature remains remarkably higher than neutrals and ions ones. The total electric current calculated by the proposed model takes a maximum value of 7.71 mA. This value increases with increasing tube reactor diameter which changes the reactor equivalent capacity.
How general is the strong cosmic censorship bound for quasinormal modes?
Authors: Konoplya R.A. , Zhidenko A. 
Published: November 2022

Abstract
Hod's proposal claims that the least damped quasinormal mode of a black hole must have the imaginary part smaller than half of the surface gravity at the event horizon.
The Strong Cosmic Censorship in General Relativity implies that this bound must be even weaker: half of the surface gravity at the Cauchy horizon. The appealing question is whether these bounds are limited by the Einstein theory only?
Here we will present numerical evidence that once the black hole size is much smaller than then the radius of the cosmological horizon, both the Hod's proposal and the strong cosmic censorship bound for quasinormal modes are satisfied for general spherically symmetric black holes in an arbitrary metric theory of gravity. The low-lying quasinormal frequencies have the universal behavior in this regime and do not depend on the near-horizon geometry, but only on the asymptotic parameters: the value of the cosmological constant and black hole mass.
Constraining scale dependent growth with redshift surveys
Authors: Denissenya Mikhail , Linder Eric V. 
Published: November 2022

Abstract
Ongoing and future redshift surveys have the capability to
measure the growth rate of large scale structure at the
percent level over a broad range of redshifts, tightly
constraining cosmological parameters. Beyond general
relativity, however, the growth rate in the linear density
perturbation regime can be not only redshift dependent but
scale dependent, revealing important clues to modified gravity.
We demonstrate that a fully model independent approach of binning
the gravitational strength G
eff (k,z) matches
scalar-tensor results for the growth rate fσ
8(k,z) to
0.02%–0.27% rms accuracy. For data of the quality of
the Dark Energy Spectroscopic Instrument (DESI) we find the
bin values can be constrained to 1.4%–28%. We also
explore the
general scalar-tensor form, constraining the amplitude and
past and future scalaron mass/shape parameters.
Perhaps most interesting is the strong complementarity
of low redshift peculiar velocity data with DESI-like
redshift space distortion measurements, enabling
improvements up to a factor 6–7 on 2D joint confidence
contour areas.
Finally, we quantify some issues with gravity
parametrizations that do not include all the key physics.
The velocity-dependent J-factor of the Milky Way halo: does what happens in the galactic bulge stay in the galactic bulge?
Authors: Kiriu Kenny , Kumar Jason , Runburg Jack 
Published: November 2022

Abstract
We consider the angular distribution of the photon signal which could arise
from velocity-dependent dark matter annihilation within the Galactic bulge. We find that, for the
case of Sommerfeld-enhanced annihilation, dark matter annihilation within the bulge is
dominated by slow speed particles which never leave the bulge, allowing one to find a simple
analytic relationship between the dark matter profile within the Galactic bulge and the angular
distribution. On the other hand, for the case p- or d-wave annihilation, we find that
the small fraction of high-speed particles which can leave the bulge provide a significant,
often dominant, contribution to dark matter annihilation within the bulge. For these scenarios,
fully understanding dark matter annihilation deep within the Galactic bulge, and the angular distribution of
the resulting photon signal, requires an understanding of
the dark matter profile well outside the bulge. We consider the Galactic Center excess in
light of these results, and find that an explanation of this excess in terms of p-wave
annihilation would require the dark matter profile within the bulge to have a much steeper
profile than usually considered, but with uncertainties related to the behavior of the profile
outside the bulge.
CASA, the Common Astronomy Software Applications for Radio Astronomy
Authors: The CASA Team  , Bean Ben , Bhatnagar Sanjay , Castro Sandra , Meyer Jennifer Donovan , Emonts Bjorn , Garcia Enrique , Garwood Robert , Golap Kumar , Villalba Justo Gonzalez , Harris Pamela , Hayashi Yohei , Hoskins Josh , Hsieh Mingyu , Jagannathan Preshanth , Kawasaki Wataru , Keimpema Aard , Kettenis Mark , Lopez Jorge , Marvil Joshua , Masters Joseph , McNichols Andrew , Mehringer David , Miel Renaud , Moellenbrock George , Montesino Federico , Nakazato Takeshi , Ott Juergen , Petry Dirk , Pokorny Martin , Raba Ryan , Rau Urvashi , Schiebel Darrell , Schweighart Neal , Sekhar Srikrishna , Shimada Kazuhiko , Small Des , Steeb Jan-Willem , Sugimoto Kanako , Suoranta Ville , Tsutsumi Takahiro , van Bemmel Ilse M. , Verkouter Marjolein , Wells Akeem , Xiong Wei , Szomoru Arpad , Griffith Morgan , Glendenning Brian , Kern Jeff 
Published: November 2022

Abstract
CASA, the Common Astronomy Software Applications, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA), and is frequently used also for other radio telescopes. The CASA software can handle data from single-dish, aperture-synthesis, and Very Long Baseline Interferometery (VLBI) telescopes. One of its core functionalities is to support the calibration and imaging pipelines for ALMA, VLA, VLA Sky Survey, and the Nobeyama 45 m telescope. This paper presents a high-level overview of the basic structure of the CASA software, as well as procedures for calibrating and imaging astronomical radio data in CASA. CASA is being developed by an international consortium of scientists and software engineers based at the National Radio Astronomy Observatory (NRAO), the European Southern Observatory, the National Astronomical Observatory of Japan, and the Joint Institute for VLBI European Research Infrastructure Consortium (JIV-ERIC), under the guidance of NRAO.
Experimentally monitoring of the rapid biomolecular hydrolysis reaction with optical weak measurement
Authors: Zhao Ruitong , Wang Xin , Wang Peng , Wu Xingda , Fang Xianglin , Zhang Yanjiao , Li Shaoxin 
Published: November 2022

Abstract
The real-time measurement of optical activity is of great significance for studying the chemical reactions of chiral molecules. In this study, we have built a set of linear common path optical weak measurement chiral sensor system in frequency domain, and the optical sensitivity of the system feasibly reaches 1524 for activity. Using this system, we have realized the state measurement of the ultrafast alkaline hydrolysis reaction of gluconolactone under different concentrations of catalyst. This study shows that the optical weak measurement chiral sensor can well monitor and compare the degree of hydrolysis reaction, and partly reflect the approximate change of the optical rotation in the real-time process of hydrolysis. Optical weak measurement chiral sensing does not require separation and labeling molecules, and has great application potential for the production and development of chiral compounds, especially chiral drugs.
Improvement of microwave electric field measurement sensitivity via dual-microwave-dressed electromagnetically induced transparency in Rydberg atoms
Authors: Yuan Jinpeng , Jin Ting , Wang Lirong , Xiao Liantuan , Jia Suotang 
Published: November 2022

Abstract
We present a mechanism for improving the sensitivity of microwave (MW) electric field (E-field) measurement using dual-MW-dressed electromagnetically induced transparency in a 5S
1/2–5P
3/2–56D
5/2–57P
3/2
85Rb atomic coherent system. An auxiliary MW (A-MW) field is introduced into the MW E-field measurement system, which consists of a probe, coupling lasers, and a target MW (T-MW) field. When the A-MW field frequency is tuned to be the same as the T-MW field and its power is adjusted to a suitable range, the T-MW field strength can be read out effectively. Finally, the sensitivity of MW E-field measurement is improved by about two orders of magnitude compared to that without an A-MW field. In addition, this mechanism is proven to be applicable for all frequency bands covered by Rydberg energy levels. This work opens up a novel pathway for the realization of high-sensitivity MW E-field measurement with Rydberg atoms.
Fabrication of high-concentration Cu-doped deuterated targets for fast ignition experiments
Authors: Ikeda Tomokazu , Kaneyasu Yumi , Hosokawa Hitomi , Shigemori Keisuke , Norimastu Takayoshi , Cadatal-Raduban Marilou , Nagai Keiji , Kojima Sadaoki , Abe Yuki , Miura Eisuke , Kitagawa Yoneyoshi , Takemura Mao , Wang Yubo , Dun Jinyuan , Guo Shuwang , Asano Shoui , Takizawa Ryunosuke , Fujioka Shinsuke , Shiraga Hiroyuki , Arikawa Yasunobu , Ozaki Tetsuo , Iwamoto Akifumi , Sakagami Hitoshi , Sawada Hiroshi , Mori Yoshitaka , Yamanoi Kohei 
Published: November 2022

Abstract
In high-energy-density physics, including inertial fusion energy using high-power lasers, doping tracer atoms and deuteration of target materials play an important role in diagnosis. For example, a low-concentration Cu dopant acts as an x-ray source for electron temperature detection while a deuterium dopant acts as a neutron source for fusion reaction detection. However, the simultaneous achievement of Cu doping, a deuterated polymer, mechanical toughness and chemical robustness during the fabrication process is not so simple. In this study, we report the successful fabrication of a Cu-doped deuterated target. The obtained samples were characterized by inductively coupled plasma optical emission spectrometry, differential scanning calorimetry and Fourier transform infrared spectroscopy. Simultaneous measurements of Cu K-shell x-ray emission and beam fusion neutrons were demonstrated using a petawatt laser at Osaka University.
The use of simultaneous IBA techniques to fingerprint fine particle emissions during the Australian bushfire 2019-20 black summer event.
Authors: Cohen David D 
Published: November 2022

Abstract
The outputs of the multi-elemental IBA techniques of PIXE, PIGE, RBS and PESA have been used as inputs to positive matrix factorisation source apportionment methods to quantify and fingerprint bushfire smoke during the catastrophic black summer bushfires of 2019-20 season in NSW, Australia.
Differential Cross-section Measurements for Deuteron Elastic Scattering on 11B
Authors: Tsakiris Th , Cosic D , Dimitrakopoulos N , Kokkoris M , Krmpotić M , Lagoyannis A , Maragkos F , Provatas G , Ziagkova A 
Published: November 2022

Abstract
The implementation of boron in several fields, such as in the creation of p-type semiconductors in electronics, has created the need for the accurate quantitative determination of its depth profile concentrations in near surface layers of various matrices. In the framework of IBA techniques, a combination of Elastic Backscattering Spectroscopy (EBS), along with Nuclear Reaction Analysis (NRA), has been proposed in order to address the current needs for boron depth profiling, based on the use of a proton beam. Deuterons offer superior mass resolution with respect to protons, having similar stopping power values, but, unfortunately, the lack of experimental datasets concerning the deuteron elastic scattering on boron impedes their use. Thus, in the present work, the first set of measurements for the 11B(d,d0) differential cross sections covering the Ed,lab=1300-1860 keV energy range for the backscattering angles of 150°, 160° and 170° was carried out. The study was conducted at the 5.5 MV Tandem Accelerator of the Institute of Nuclear and Particle Physics, in the National Center of Scientific Research “Demokritos”, Athens, Greece. The target was a thin, self-supporting aluminum foil, upon which a thin natB (isotopic ratio: 11B 80.1%, 10B 19.9%) layer was deposited using the sputtering technique at RBI, Zagreb, Croatia, followed by the evaporation of an ultra-thin layer of 197Au on top for wear protection and normalization purposes. The outgoing particles were detected using 6 Silicon Surface Barrier (S.S.B.) detectors and the differential cross sections for the elastic scattering were determined from the resulting spectra via the relative measurement technique.
Differential Cross-section Measurements for 3He Elastic Scattering on 16O and 27Al
Authors: Maragkos F , Bosmpotinis K , Cosic D , Fazinić S , Foteinou V , Kokkoris M , Krmpotić M , Patronis N , Provatas G , Taimpiri E , Tsakiris Th 
Published: November 2022

Abstract
In the present work measurements to determine the differential cross section values for the elastic scattering of 3He on 16O and 27Al were carried out at the Ruđer Bošković Institute (RBI) Tandem Accelerator Facility in Zagreb, Croatia, covering the E3He,lab=3500-5600 keV energy range, using four Silicon Surface Barrier (SSB) detectors positioned at the backscattering angles of 130°, 145°, 157.7° and 165ο. The target was constructed at the facility and was comprised of a thin, self-supporting aluminum foil, upon which a thin layer of natB (isotopic ratio: 11B 80.1%, 10B 19.9%), along with 12C, 14N, 16O, was deposited using the sputtering technique. In addition, an ultra-thin layer of 197Au was evaporated on top for wear protection and normalization purposes.
Analysis of Ion-Species of a Dedicated Duoplasmatron-type Ion Source for a 100 keV-Rage Compact Ion-Microbeam System
Authors: Ishii Yasuyuki , Ohkubo Takeru 
Published: November 2022

Abstract
Hydrogen-ion beam species generated by a dedicated duoplasmatron-type ion source that was developed for a MeV compact ion-microbeam system was experimentally analyzed in a test bench to study the ion source feature. Bimolecular and trimolecular hydrogen-ion beams were mainly generated by the duoplasmatron-type ion source. The ratio of the two different molecular hydrogen-ion beams was controlled by turning hydrogen-gas pressure. This experiment showed that the duoplasmatron-type ion source could produce a single molecular hydrogen-ion beam for ion-microbeam applications.
Calculated energy loss of swift light ions in platinum and gold: importance of the target electronic excitation spectrum
Authors: Abril Isabel , Vera Pablo de , Garcia-Molina Rafael 
Published: November 2022

Abstract
Understanding and predicting the energy loss of swift ions in metals is important for many applications of charged particle beams, such as analysis and modification of materials, and recently for modelling metal nanoparticle radiosensitisation in ion beam cancer therapy. We have calculated the stopping power of the transition metals Pt and Au for protons and alpha particles in a wide energy range, using the dielectric formalism, which realistically accounts for the excitation spectrum of each metal through the Mermin Energy Loss Function - Generalised Oscillator Strength methodology. For each combination of projectile, energy and target, we have considered: (i) the equilibrium charge state of the projectile through the target, (ii) the energy-loss due to electron capture and loss processes, and (iii) the energy loss resulting from the polarisation of the projectile’s electronic cloud due to the self-induced electric field. Our calculated stopping powers show a fairly good agreement with the available experimental data for platinum and gold, particularly the most recent ones around the stopping power maximum, which validates the methodology we have used to be further extended to other transition metals. For the materials studied (platinum and gold), two commonly used and different sources of the experimental excitation spectrum yield comparable calculated stopping powers and mean excitation energies, the latter being closer to the most recent data provided in a recent ICRU Report than to previous compilations. Despite the small differences in the sources of excitation spectra of these metals, they lead to practically the same stopping power results as far as they reproduce the main excitation features of the material and fulfil physically motivated sum rules.
Simulating the nanometric track-structure of carbon ion beams in liquid water at energies relevant for hadrontherapy
Authors: Vera Pablo de , Simonucci Stefano , Trevisanutto Paolo E. , Abril Isabel , Dapor Maurizio , Taioli Simone , Garcia-Molina Rafael 
Published: November 2022

Abstract
The nanometric track-structure of energetic ion beams in biological media determines the direct physical damage to living cells, which is one of the main responsibles of their killing or inactivation during radiotherapy treatments or under cosmic radiation bombardment. In the present work, detailed track-structure Monte Carlo simulations, performed with the code SEED (Secondary Electron Energy Deposition), are presented for carbon ions in a wide energy range in liquid water. Liquid water is the main constituent of biological tissues, and carbon ions are one of the most promising projectiles currently available for ion beam cancer therapy. The simulations are based on accurate cross sections for the different elastic and inelastic events determining the interaction of charged particles with condensed-phase materials. The latter are derived from the ab initio calculation of the electronic excitation spectrum of liquid water by means of time-dependent density functional theory (TDDFT), which is then used within the dielectric formalism to obtain inelastic electronic cross sections for both carbon ions and secondary electrons. Both the ionisation cross sections of water by carbon ions and the excitation and ionisation cross sections for electron impact are obtained in very good agreement with known experimental data. The elastic scattering cross sections for electrons in condensed-phase water are also obtained from ab initio calculations by solving the Dirac-Hartree-Fock equation. The detailed simulations fed with reliable cross sections allow to assess the contribution of different physical mechanisms (electronic excitation, ionisation and dissociative electron attachment –DEA–) to the carbon ion-induced direct biodamage.
Design of BLDCM servo controller based on TMS320F28377D
Authors: Hao Yilong , Lou Yongchun , Hou Wenguo , Chen Xiaolong , Niu Lu 
Published: November 2022

Abstract
To meet the application requirements of high-precision and fast-response thrust vector control from a solid rocket motor, a digital and integrated servo controller for four brushless direct current motors was designed and implemented. The controller hardware system proposed in this paper includes control circuit module and drive circuit module. The former mainly includes power conversion circuit, DSP system circuit, A/D circuit, SPI communication interface circuit, and SCI communication interface circuit. The later mainly includes three-phase full-bridge six-arm drive circuit and optocoupler isolation circuit. The three closed-loop control strategies of position, speed and current based on PID control algorithm are adopted, and the mathematical model of the motor is established in Matlab/Simulink for verification. The structure composition and working principle of the servo controller are briefly introduced, and the hardware design scheme, software workflow and control strategy are described in detail. Experimental results show that the response speed and control accuracy of the proposed controller meet the technical requirements.
Wind Turbine Design and Assessment
Authors: Gu Lan , Zheng Liming 
Published: November 2022

Abstract
This project aims to design a wind turbine for the bam area of Zhangjiakou City, which has a relative high wind speed because of the good development prospect of China’s wind power. Based on the detailed investigation of wind speed and direction in the bam area of Zhangjiakou, the project designs a wind turbine that can produce as much energy as possible. The turbine with a hub height of 70 m, hub radius 1 m and radius 40 m is designed by using optimal blade design methods. Finally, the performance of wind turbine can be simulated by using the theory of blade element momentum and the corresponding annual energy yield can be calculated.
Silicon detectors beyond LHC — RD50 status report
Authors: Zareef F. , Oblakowska-Mucha A. , Szumlak T. 
Published: November 2022

Abstract
The last decade showed the leading role of the Large Hadron Collider (LHC) experiments in particle physics. To fully exploit its physics potential, the significant increase of LHC luminosity is planned. At the High luminosity Phase-II Upgrade (HL-LHC), foreseen for 2027, a peak instantaneous luminosity of 5 × 1034 cm−2, with an integrated luminosity of 3000 fb−1 is expected. The experiments will be subjected to radiation levels up to 2 × 1016 neq/cm2 at the innermost layers of the detectors. Since more than a decade the RD50 collaboration has been conducting a significant R&D program across experimental boundaries to create silicon sensors with adequate radiation tolerance for HL-LHC trackers. HV-CMOS sensors, 3D detectors, and low gain avalanche detectors (LGADs) are important areas of detector research and development. We will discuss the current state of research and development in numerous silicon detector domains, with a focus on 3D and LGAD detectors. We will also discuss the alternatives for detector selection experiments outside of the LHC, using the FCC as an example.