bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self-consistent simulation of photoelectrons in exoplanet winds: Faster ionisation and weaker mass-loss rates
Authors: Gillet A. , García Muñoz A. , Strugarek A. 
Published: October 2023

Context. Close-in exoplanets undergo extreme irradiation levels leading to hydrodynamic atmospheric escape and the formation of planetary winds. The planetary mass-loss is governed by several physical mechanisms, including photoionisation that may impact the evolution of the atmosphere. The stellar radiation energy deposited as heat strongly depends on the energy of the primary electrons following photoionisation and on the local fractional ionisation. All these factors affect the model-estimated atmospheric mass-loss rates and other characteristics of the outflow in ways that have not been clearly elucidated. Moreover, the shape of the XUV stellar spectra strongly influences the photoionisation and heating deposition in the atmosphere. Substantial changes are to be expected in the planetary mass-loss rate.
Aims. We study the effect of secondary ionisation by photoelectrons on the ionisation and heating of the gas for different planet-star systems. We focus on the local and planet-wise effects, to clearly demonstrate the significance of these interactions.
Methods. Using the PLUTO code, we performed 1D hydrodynamics simulations for a variety of planets and stellar types. We included planets in the size range from Neptune to Jupiter, and stars from M dwarfs to Sun-like.
Results. Our results indicate a significant decrease in the planetary mass-loss rate for all planetary systems when secondary ionisation is taken into account. The mass-loss rate is found to decrease by 43% for the more massive exoplanets to 54% for the less massive exoplanets orbiting Sun-like stars, and up to 52% for a Jovian-like planet orbiting an M-type star. Our results also indicate much faster ionisation of the atmosphere due to photoelectrons.
Conclusions. We built a self-consistent model including secondary ionisation by photoelectrons to evaluate its impact on mass-loss rates. We find that photoelectrons affect the mass-loss rates by factors that are potentially important for planetary evolution theories. We also find that enhanced ionisation occurs at altitudes that are often probed with specific atomic lines in transmission spectroscopy. Future modelling of these processes should include the role of photoelectrons. For this purpose, we make a simple but accurate parameterisation for atomic hydrogen atmospheres available.
Dossier « Recherches sur la question animale : entre mobilisations sociétales et innovations technologiques » – « Slaughter free/Cultured meat ». Une morale de marchand
Authors: Porcher Jocelyne 
Published: October 2023

À Singapour récemment, un restaurant branché a servi des nuggets préparés avec de la viande de poulet in vitro. Selon les clients, le produit était semblable en goût et en texture à la « viande conventionnelle ». Dans le National Review, un magazine conservateur, le journaliste Matthew Scully se réjouit de cette innovation et en souligne le caractère réhumanisant. L’objectif de l’article est d’interroger cette réhumanisation en montrant que le développement de la viande cultivée repose sur ce que Mauss appelait « une morale de marchand ». La viande cultivée renvoie à des enjeux économiques puissants et produit des alliances plus économicopolitiques qu’éthiques. Bien loin de nous « réhumaniser », elle conduit au contraire à remplacer le travail vivant des humains et des animaux par le travail mort des machines. Autrement dit, à nous déshumaniser et à nous asservir.
Influence of Distal Reference Point of the Tibial Mechanical Axis on the Ankle and Hindlimb Alignment Change after Total Knee Arthroplasty
Authors: Kikuchi Kenichi , Nakano Naoki , Ishida Kazunari , Kuroda Yuichi , Hayashi Shinya , Tsubosaka Masanori , Kamenaga Tomoyuki , Matsushita Takehiko , Kuroda Ryosuke , Matsumoto Tomoyuki 
Published: October 2023

AbstractThe alignment philosophy in total knee arthroplasty (TKA) has tended to shift from the gold standard of mechanically aligned technique to personalized alignment, such as the kinematically aligned (KA) technique. However, the influences of different surgical techniques on lower limb alignment relative to the ground are not fully investigated. This study investigated the influence of the ankle and hindlimb alignment change after mechanically aligned TKA and KA-TKA. The varus osteoarthritic patients who underwent TKAs were divided into a mechanically aligned TKA group (group M, n = 50) and a KA-TKA group (group K, n = 50). Radiographic parameters (hip–knee–calcaneus [HKC] angle, hip–knee–ankle [HKA] angle, talar tilt angle [TTA], and tibiocalcaneal angle [TCA]) were investigated using full-length standing radiographs. The deviation angle (ΔTA; angle between the tibial mechanical axis [TMA] and the ground tibial mechanical axis [gTMA]) and the change of ΔTA (cΔTA) were also assessed. These parameters were compared between the two groups, along with the correlation between the preoperative HKA angle and other parameters. ΔTA, TTA, and TCA showed no differences between the groups pre- and postoperatively, and no significant changes were observed postoperatively. The preoperative HKA angle showed a significant negative correlation with cΔTA in both groups (group M: r = –0.33, p = 0.02; group K: r = –0.29, p = 0.04) although no correlation was observed the with preoperative TTA and TCA. Despite no change in ΔTA after surgery, the preoperative varus deformity was associated with a change in the deviation between gTMA and TMA after surgery. A severely varus knee may be inappropriate for ground KA-TKA.
Comprehension of wh-questions among Jordanian children with autism spectrum disorder and specific language impairment
Authors: Issa Hassan Mohammad Bani , Ying Jong Hui , Azam Yasir Bin 
Published: October 2023

AbstractThis study investigates the comprehension of wh-questions among Jordanian Arabic-speaking children by comparing both (subject and object) “which” and “who” questions. The sample consisted of 45 Jordanian children: 15 with autism spectrum disorder (ASD), 15 with specific developmental language impairment (SDLI) and 15 typically developing (TD) children aged between 6 and 8 years. To achieve the objectives of this study, a binary task consisting of pictures with two-figure selection and pictures with three-figure selection was used. To analyze the data, a one-way repeated measures ANOVA was used to examine the comprehension of wh-questions among the three groups. The findings revealed that the ASD and SDLI groups performed better in subject wh-questions compared to object wh-questions. Moreover, the study also found that “which” questions constituted a problem for both ASD and SDLI Jordanian children. In addition, earlier grammatical competence acquired by children with ASD and SDLI (i.e., word order) guides their later wh-question comprehension. ASD and SDLI children showed impairment in answering subject and object questions. Meanwhile, the TD children showed better performance in who and which questions, although they exhibited difficulty in understanding object questions compared to subject questions. The conclusions indicate that the SDLI group performed better than the ASD group in terms of the number of correct answers and comprehension of wh-questions, while The ASD group performed better in the three-figures tasks over the two-figure tasks, in contrast to the children in the other groups, who performed better in the two-figure tasks.
Multifractal scaling analyses of the spatial diffusion pattern of COVID-19 pandemic in Chinese mainland
Authors: Long Yuqing , Chen Yanguang , Li Yajing 
Published: October 2023

AbstractRevealing spatio-temporal evolution regularity in the spatial diffusion of epidemics is helpful for preventing and controlling the spread of epidemics. Based on the real-time COVID-19 datasets by prefecture-level cities, this paper is devoted to exploring the multifractal scaling in spatial diffusion pattern of COVID-19 pandemic and its evolution characteristics in Chinese mainland. The ArcGIS technology and box-counting method are employed to extract spatial data and the least square regression based on rescaling probability (μ-weight method) is used to calculate fractal parameters. The results show multifractal distribution of COVID-19 pandemic in China. The generalized correlation dimension spectrums are inverse S-shaped curves, but the fractal dimension values significantly exceed the Euclidean dimension of embedding space when moment orderq«0. The local singularity spectrums are asymmetric unimodal curves, which slant to right. The fractal dimension growth curves are shown as quasi S-shaped curves. From these spectrums and growth curves, the main conclusions can be drawn as follows: First, self-similar patterns developed in the process of COVID-19 pandemic, which seems to be dominated by multifractal scaling law. Second, the spatial pattern of COVID-19 across China can be characterized by global clustering with local disordered diffusion. Third, the spatial diffusion process of COVID-19 in China experienced four stages, i.e., initial stage, the rapid diffusion stage, the hierarchical diffusion stage, and finally the contraction stage. This study suggests that multifractal theory can be utilized to characterize spatio-temporal diffusion of COVID-19 pandemic, and the case analyses may be instructive for further exploring natural laws of spatial diffusion.
Forging a “civil discourse”
Authors: Anduaga Aitor 
Published: October 2023

Abstract
The academic and, subsequently, social legitimation of Basque studies – namely, their constitution as a subject of
scholarly inquiry in the early twentieth century – is proposed as a key factor in the early process of standardisation of the
Basque language: this legitimation created a climate that was propitious to the development of civil discourse and favourable to
the pursuit of consensus regarding the construction of a literary standard. In its support, I evidence the breadth and strength of
the involved actors’ ideology, as well as the influence of civil discourse and the spirit of consensus upon the three phases that
characterised Basque standardisation: (1) the ideological polarisation that led to consensual failure around 1901; (2) the
ideological depolarisation that culminated in the foundation of the Academy of the Basque Language in 1918; and (3) the
ideological repolarisation that caused the breakdown of civil discourse during Primo de Rivera’s dictatorship (1923–1930). Its
standardisation was closely linked to the promotion of the journal Revista Internacional de Estudios Vascos and
the use of scientific-inductive method in modern Bascology. Oddly, historians and linguists have almost completely ignored the
influence of the legitimation of an area study (linked to a particular language) on that language’s standardisation.
A binary inflectional voice contrast in Mabaan (Western Nilotic)
Authors: Andersen Torben 
Published: October 2023

Abstract
In Mabaan, a Western Nilotic language, there is a binary inflectional voice contrast in the morphology of verbs. In addition to a morphologically unmarked basic voice, there is a fully productive applicative voice, which is morphologically marked. This applicative voice may be called circumstantial in order to distinguish it from another applicative voice, which is derivational, namely benefactive. The circumstantial voice turns an adjunct into an object, making an intransitive verb transitive and a transitive verb ditransitive. In a main clause, however, a transitive verb needs to be detransitivized via antipassive derivation in order for an adjunct to become object through the circumstantial voice. In some types of subordinate clauses, by contrast, any verb can get the circumstantial voice, whatever its transitivity, derivational status and meaning. This voice is obligatory in relative clauses when the relativized constituent is an adjunct and in some types of adverbial clauses.
Complex diagnostic and numerical study of x-ray and particle emissions under relativistic ultra-short laser-solid interaction
Authors: Eftekhari-Zadeh Ehsan , Loetzsch Robert , Manganelli Lorenzo , Blümcke Manuel Sebastian , Tauschwitz Anna , Uschmann Ingo , Pukhov Alexander , Rosmej Olga , Spielmann Christian , Kartashov Daniil 
Published: October 2023

Abstract
In this report, we present the experimental results on the generation of x-ray emission and particle acceleration using high temporal contrast (∼10–9 at picosecond time scale), ultrashort (

∼
30
fs

), relativistic (

a

0

≈
5

) near-IR laser pulses interacting with Titanium foils. Complex diagnostics, including the energy spectra of accelerated electrons from both front and rear target sides, electron angular distribution and x-ray spectroscopy of the plasma emission were employed. Analysis of the characteristic radiation produced by highly charged Ti+20 ions led to the conclusion that laser-plasma interaction, which leads to the generation of keV hot plasma, occurs at plasma densities 10x higher than relativistic critical electron density. Numerical simulations, including hydrodynamic calculations to model pre-plasma, generated on nanosecond-picosecond time scale under our experimental conditions and relativistic particle-in-cell simulations for main pulse interaction with the plasma reproduce well electron energy and angular distributions. They show the onset of hole boring effect under near normal incidence that leads to plasma density steepening and enables penetration of high intensity laser radiation into the overcritical plasma to much higher densities (up to 30

n

cr

), what is in a good agreement with the results of x-ray spectroscopy.
Performance improvement of junctionless SOI-MOSFETs by a superior depletion technique
Authors: Abrishami Kimia M , Orouji Ali A , Madadi Dariush 
Published: October 2023

Abstract
This work uses a superior depletion technique to present a junctionless silicon-on-insulator (SOI) metal-oxide field-effect transistor (MOSFET) in a 14 nm regime. The suggested technique embeds a P-type area into the buried silicon oxide (SiO2) layer. The p-silicon area has several effects on the proposed structure (EPB-JLSM): First, it helps us attain a full depletion area in the channel. Second, the self-heating improves due to the higher thermal conductivity of silicon than the silicon nitride. Finally, the embedded area causes the lower hole concentration (high Vds at accumulation mode), resulting in a better kink effect. Also, we discuss the impact of inserting the P-silicon area geometry into the buried layer on the DC performance device, such as height and thickness. The P-silicon area decreases the leakage current (IOFF) by three orders of magnitude (∼1000%), and also slightly enhances the drive current (ION) (∼20%), and reduces subthreshold swing (SS) from 186 to 109 mV dec−1 (∼71%) compared to a typical junctionless SOI MOSFET (C-JLSM). Furthermore, we discuss the effect of the buried region and gate insulator materials on the proposed device’s performance.
Stability of Schwarzshild black holes in quadratic gravity
with Weyl curvature domination
Authors: De Felice Antonio , Tsujikawa Shinji 
Published: October 2023

Abstract
We study the linear stability of static and spherically symmetric (SSS)
black holes (BHs) in the presence of a Weyl-squared curvature
besides an Einstein-Hilbert term in the action.
In this theory, there is always an exact Schwarzschild BH
irrespective of the Weyl coupling constant α,
with the appearance of a non-Schwarzschild solution
for a particular range of the coupling of
order |α| ≈ r

h

2 (where r

h
is
the horizon radius).
On the SSS background, we show that the propagating degrees
of freedom (DOFs) are three in the odd-parity sector and four
in the even-parity sector. Since the number of total seven DOFs coincides with those on the Minkowski and isotropic cosmological backgrounds, the Weyl gravity does not pose a strong coupling problem associated with the vanishing kinetic term of dynamical perturbations.
The odd-parity perturbations possess at least one ghost mode,
but the propagation speeds of all three dynamical modes
are luminal.
In the even-parity sector, our analysis, based on the WKB approximation, shows that, besides the appearance of at least one ghost mode, the Schwarzschild solution is prone to both radial and angular Laplacian instabilities of several dynamical perturbations for the Weyl coupling in the range |α| ≫ r

h

2.
For large radial and angular momentum modes, the time scales of such instabilities are much shorter than the horizon distance r

h
divided by the speed of light.
In the coupling regime |α|≲ r

h

2, the WKB approximation does not hold any longer, and a different analysis should be performed
if one wants to state the stability of both the Schwarzschild and
non-Schwarzschild BH solutions in this range of model parameters.
Furnace effect for the Re-C fixed point
Authors: Khlevnoy Boris , Grigoryeva Irina 
Published: October 2023

Abstract
The furnace effect of the rhenium–carbon (Re–C) high-temperature fixed point was experimentally estimated by comparing the point-of-inflection temperature of the melting plateau demonstrated by the same Re–C cell in three furnaces of different dimensions. Two cells with the same outer size but different blackbody cavity designs were used. After corrections of the measured temperature for the size-of-source effect and the pyrometer stability, the furnace effect, estimated as the maximum change of the Re–C temperature from furnace to furnace, was found to be 0.094 K for the ‘best’ realisation of the fixed point. For the ‘normal’ realisation, additional components of the furnace effect, associated with non-optimal use of the fixed-point cell and furnace, were considered. The uncertainty components of the Re–C fixed point realisation associated with the furnace effect were estimated to be 0.060 K and 0.110 K for the best and normal cases, respectively.
Grid density effect for numerical simulation of civil aircraft in post stall
Authors: Zhang Lu , Mou Yongfei , Liu Fan , Ma Shuai , Cui Xingda 
Published: October 2023

Abstract
Stall will deteriorate flight safety and cause serious accidents for civil aircraft. RANS-LES hybrid approaches have become a compromise choice due to insufficient ability of RANS for large flow separation. In present work, Zonal Detached-eddy-simulation coupled with high-order spatial scheme were employed to investigated grid density effect in the numerical simulations. The calculations show that the grid density would affect the numerical simulation of the small-scale flow structure in the wake of region of the main wing, and further affect the disturbance of main wing to the horizontal tail. It is necessary to properly densify the grid downstream of the main wing in order to accurately predict the aircraft stall.
Influence of parameterization method and optimization algorithm on airfoil optimization
Authors: Zhou Jinxin , Jia Hongyin , Wu Xiaojun , Zhang Peihong , Yu Jing , Zhou Guiyu , Chen Bing , Luo Lei , Mo Tao , Jiang Anlin 
Published: October 2023

Abstract
In this study, the impact of parameterization methods and optimization algorithms on the optimization results of the RAE2822 airfoil is examined. Specifically, how variations in the number of design variables, spacing of control points, the scaling scale of the objective function, and line search step of different FFD parameterization methods affect the resistance convergence process are investigated. The results indicate that the number of design variables and the spacing of control points play a significant role in the speed and minimum value of resistance convergence. In contrast, the scaling scale of the objective function and the line search step has a relatively minor impact on resistance optimization.
Numerical Simulation and Flow Display of Bionic Alula on Rectangle Airfoils
Authors: Sa Haijing , Xu Fei , Wang Yifan , Ma Wenxuan , Hu Tianxiang , Zhang Wenyi 
Published: October 2023

Abstract
Some birds have small wings (Alula) in the middle of their main wings. These small wings will tilt upward when the bird flies at a high attack angle to maintain a stable flying posture. This paper explores the lift effects of bionic Alula on rectangular airfoils with different aspect ratios through numerical simulation and flow display experiments. According to the numerical simulation, Alula can increase the rectangular airfoil lift coefficient by a maximum of 24% when the airfoil aspect ratio is 2. By comparing simulation results with flow display results, the low-pressure area generated by Alula and the merge of the Alula vortices with the airfoil tip vortices mainly contribute to the lift enhancement.
Research on Rotation/Curvature Correction Method of SA Turbulence Model for Numerical Simulation of Axial Compressor
Authors: Wang Ziwei , Cao Jie , Chen Keyan , Li Baiyu , Li Bin 
Published: October 2023

Abstract
The strong rotation effect exists in the flow of compressors, but it is rarely considered in the common turbulence models used in numerical simulation. In addition, when the widely used turbulence model is applied to the numerical simulation of compressor flow, it often needs to be modified. In order to evaluate the applicability of various turbulence model modification methods in axial compressor flow simulation, and explore suitable modification methods. Based on the numerical simulation software ASPAC for axial flow compressor developed by our research group, three turbulence model rotation/curvature correction methods were implemented based on SA turbulence model and applied to the flow simulation of Rotor 37. The results show that the modified models mainly affect the flow separation of the rotor suction surface. Specifically, the SA-Helicity model improves the prediction accuracy of the separation flow in the compressor. The total temperature and pressure calculated by SA-R and SA-RC models are on the small side. In this study, the applicability of rotation/curvature correction method of various SA turbulence models in compressor flow simulation is evaluated in detail based on transonic compressor, which provides a basis for the selection of turbulence models and the research of turbulence model and correction methods adapted to compressor simulations.
Numerical Investigation of Pin Fin Types on the Thermal Improvement of H2/Air Micro Burner
Authors: He Ziqiang , Kang Dugang , Wang Fei , Huang Song , Chen Qiaoqiao , Li Xiuquan 
Published: October 2023

Abstract
The micro-thermophotovoltaic system is a prospective power generation system. The radiation performance of exterior walls is a critical component of MTPV, as it effectively determines the overall energy output. At a mixture intake speed of 10 m/s, the MCPFs-Diamond exhibits the most favourable thermal performance, as evidenced by the thermal distribution and the highest average temperature of the exterior walls, which measures 1255.3 K. Its available radiation energy can reach up to 43.6 W. In the case of micro combustors that incorporate alternative shapes of pin fins, the highest values for both the average external wall temperature and the available radiational energy are achieved when the gas intake speed is set to 8 m/s.