bluuebunny/crossref_metadata_2025_split huggingface dataset:
N-N compounds in L2 French and L3 English
Authors: Hermas Abdelkader 
Published: December 2024

Abstract
This study considers the acquisition of nominal compounding in L2 French and L3 English among L1 Arabic speakers.
Arabic N‑N compounds have the structure [NHead-NModifier]; English has the structure
[NModifier-NHead]. French uses phrasal compounds [N-PP], also found in Arabic and English. The
participants completed a forced-choice selection task. In L2 French, the L2 beginners converged with the L1 French speakers
regarding phrasal compounds; however, they significantly transferred the Arabic N-N. L1 Arabic had (non)-facilitative influence on
L2 French. In contrast, the advanced L2 learners showed nativelike performance in using both structures. In L3 English, the L3
beginners used phrasal compounds and L1 N‑N forms, supporting the L1 transfer scenario and the Linguistic Proximity Model
in early L3 acquisition. In the L3 advanced stage, proficiency overrode native non-facilitative transfer. Overall, the findings
support surface overlap and derivation simplicity as predictors of transfer in L2 and L3 acquisition.
Comparison in humidity (dew-point temperature high range) dew point temperature +30 °C to 95 °C
Authors: Deschermeier Regina , Bell Stephanie , Benyon Puig Robert , Bonde Kentved Anders , Carroll Paul , Fernicola Vito , García Gallegos Jamie , Heinonen Martti , Hudolkin Domen , Jarosz Rafał , Kokkini Evmorfia , Mac Lochlainn Dubhaltach , Mitter Helmut , Oğuz Aytekin Seda , Panman Matthijs , Senn Remo , Šestan Danijel , Smorgon Denis , Stevens Mark , Zvizdić Davor 
Published: December 2024

Main text
The report summarises the results of the EURAMET.T-K8 key comparison (EURAMET Project No. P 717) in the field of humidity. The comparison covers the dew-point temperature range from +30 °C up to + 95 °C dew point temperature. The report gives details of the scheme, procedure and analysis of the comparison. The overall results display a very good agreement of the 16 participating laboratories. The two dew-point hygrometers used as travelling standard were sufficiently stable. The linkage to the corresponding CCT-K8 comparison will be calculated when the final results for both comparisons are available. Possible procedures are described in the text. In the conclusion, some remarks for improvement for future RMO key comparisons are given.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCT, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Residual stress chevron preloading amplifier for large-stroke stiffness reduction of silicon flexure mechanisms
Authors: Tissot-Daguette Loïc , Cosandier Florent , Gubler Quentin , Pétremand Yves , Despont Michel , Henein Simon 
Published: December 2024

Abstract
Residual stresses can be advantageously used to permanently preload flexure micro-mechanisms in order to modify their deflection and stiffness. This paper presents a new preloading chevron mechanism (PCM) used to amplify the preloading effect of thin film residual stress. To evaluate the preloading performances of this structure, the deflection characteristics of buckled beams and flexure linear stages preloaded by a PCM is investigated experimentally. All the mechanisms are manufactured from a monocrystalline silicon substrate using deep reactive ion etching and residual stress is provided by wet thermal oxidation. Measurements show that the deflection magnitude of fixed-fixed oxidized silicon buckled beams can be increased by up to 5 times when a PCM is integrated. The flexure linear stages studied in this research are composed of a parallel leaf spring stage connected to two fixed-guided buckled beams preloaded by a PCM. Depending on the beam dimensions, the stage translational stiffness can be set to a specific value. We designed a near-zero positive stiffness linear stage revealing a measured stiffness reduction of 98%, and a bistable linear stage with a constant negative stiffness region. Thanks to the elevated preloading displacement supplied by the PCM, the operating stroke (actuation region where the stiffness remains constant) is relatively large (more than 0.4 mm travel for 2.59 mm leaf spring length). The analytical and numerical models carried out to design the mechanisms are in good agreement with the experimental data. The results show that the fixed frame stiffness has a significant effect on the preloading performances due to the substantial forces exerted by the PCM. Furthermore, the presented preloading concept, modeling and sizing method could be applied to other compliant mechanism designs, scales and materials, enabling applications in microelectromechanical systems and watchmaking.
Probe of a Randall–Sundrum-like model from muon pair production at a high-energy muon collider
Authors: İnan S. C. , Kisselev A. V. 
Published: December 2024

Abstract
We have examined a production of a muon pair through vector boson fusion and direct μ
+
μ
− annihilation at future high-energy muon colliders in the framework of the Randall–Sundrum-like model with a small curvature of spacetime. The collision energies of 3 TeV, 14 TeV and 100 TeV are addressed. Differential and total cross sections are both calculated, and exclusion bounds on a five-dimensional gravity scale are obtained depending on collision energy and the integrated luminosity of the muon colliders. For comparison, the effects of extra dimensions in the Arkani-Hamed–Dimopoulos–Dvali model at the muon collider are studied.
Ultrawide bandgap optimization of porous 3D two-material phononic crystals aided by a 2D-based PnC construction method
Authors: Xiong Cheng , Xiao Yi , Qin Qing-Hua 
Published: December 2024

Abstract
Three dimensional (3D) porous two-material phononic crystals (PnCs), as a type of periodic structures, are of practical significance thanks to their ability to achieve omnidirectional absorption of acoustic waves. However, the vast search space inherent in the optimization algorithm presents a major challenge in the topology optimization of 3D PnCs. To date, there has been no reported work on the topology optimization of 3D porous two-material PnCs. To address this gap, a 2D-based PnC construction method is proposed. This method produces highly-symmetrical 3D PnCs from 2D PnCs, greatly decreasing the number of design variables that make up the search space. A genetic algorithm-based topology optimization incorporating this proposal is conducted for maximizing the bandgap of porous 3D two-material PnCs. The effectiveness of the optimization framework has been demonstrated, showcasing its capability to effectively reduce the number of design variables and its applicability to two materials with various disparities. The proposed method, which represents the key innovation of this work, enables the successful topology optimization of 3D porous two-material PnCs. Various structures have been obtained by constrained topology optimization. The results reveal that the optimized porous two-material structures demonstrate more advantages over both porous single-phase and non-porous two-material optimized structures.
Linear response of equilibrium measures for piecewise expanding unimodal maps
Authors: Chen Jianyu , Lin Huiping , Zhang Yufeng 
Published: December 2024

Abstract
Baladi and Smania proved in (2008 Nonlinearity
21 677–711; 2010 Ergod. Theory Dyn. Syst.
30 1–20) the linear response of the SRB measures for a family of the piecewise expanding unimodal maps. In this paper, we extend their methods in Baladi and Smania (2010 Ergod. Theory Dyn. Syst.
30 1–20) to establish the linear response formula of general equilibrium measures with respect to hyperbolic potentials. Moreover, we obtain explicit formulae for the linear response of equilibrium measures.
Atmospheric chemical source signatures from proton-transfer reaction mass spectrometry aid in the interpretation of ambient aerosol distributions
Authors: Striednig Marcus , Stichaner Michael , Graus Martin , Mühlegger Martin , Lamprecht Christian , Peron Arianna , Karl Thomas 
Published: December 2024

Abstract
Trace gases and aerosols play a fundamental role for climate and air quality, yet predicting their ambient distributions remains challenging, particularly in urban environments. Primary and secondary sources of trace gases and aerosols in the urban atmosphere are diverse and dominated by combustion sources (e.g. traffic or residential energy use), direct emissions (e.g. solvents), or secondary formation processes (e.g. gas to particle conversion). Novel instrumentation is needed to better constrain the fate of these species. With the advance of chemical ionisation mass spectrometry it is now possible to quantify a range of important atmospheric species. Here we use selected volatile organic compound (VOC) and organic aerosol (OA) observations obtained by PTR-TOF-MS and CHARON PTR-TOF-MS technology to decipher chemical source signatures in the urban area of Innsbruck. Chemically speciated gas phase and aerosol measurements were analyzed using positive matrix factorization, suggesting an externally mixed aerosol population with characteristic source contributions from domestic biomass burning, traffic, secondary sources from atmospheric oxidation, gas-fired furnaces and possibly from aircraft operations. We identified specific ions in the mass spectra associated with biomass burning, (e.g. levoglucosan (C6H10O5.H+ and fragment ions), furan (C4H4O.H+), methyl furans (C5H6O.H+), benzene (C6H6.H+) and polycyclic aromatic hydrocarbons (C10H8.H+)) that were elevated after the passage of a cold front leading to increased domestic biomass burning activities. Overall, the influence of biomass burning on PM1 (particulate matter <1 μm) is heavily dependent on meteorology as wood operated fireplaces are predominantly used as additional heating in the residential sector. Our observations show that the cumulative number density of fine particulate (CFP) matter (defined as 190–1357 nm) was dominated by secondary (e.g. photochemically aged) sources with contributions from primary sources such as traffic, local primary sources and biomass burning, whilethe traffic sector contributes notably to ultrafine particulate matter (UFP) (<90 nm). In addition, a second source of ultrafine particulate matter was identified in the west sector, which includes likely emissions from a nearby airport and/or a gas-fired district heating plant.
Fractional-order interactive systems of calcium, IP3 and nitric oxide in neuronal cells
Authors: Pawar Anand , Pardasani Kamal Raj 
Published: December 2024

Abstract
Calcium ions (Ca
2+
), 1, 4, 5-inositol trisphosphate (IP
3), and nitric oxide (NO) function as signaling molecules and are crucial for controlling several physiological mechanisms in neuronal cells. Nevertheless, there is a lack of research investigating the interplay between Ca
2+
, IP
3 and NO in neuronal cells, in terms of fractional-order dynamics. The investigation of fractional-order interacting dynamical systems including calcium, IP
3, and NO is of crucial significance as it sheds light on several phenomena such as superdiffusion and the emergence of cell memory exhibiting Brownian motion (BM) in neurons. These aspects have not yet been thoroughly examined in neurons. The theoretical framework employed in this study is a fractional model that describes the interacting calcium, IP
3, and NO systems incorporating the nonlinear reaction-diffusion equations, fractional diffusion processes, and memory effects. The Crank-Nicholson (CN) method with the Grunwald technique is utilized to address the fractional-order space derivatives, while the L1 technique is applied to solve the fractional-order temporal derivatives. The Gauss-Seidel (GS) procedure is employed to solve the system of nonlinear equations governing the dynamics of Ca
2+
, IP
3, and NO. The previously unexplored bidirectional feedback mechanisms between calcium and NO and calcium and IP
3 have been explored. The current study includes the incorporation of several critical parameters, including the voltage-gated calcium channel (VGCC), Orai channel, IP
3-receptor (IP
3
R), Sarcoendoplasmic Reticulum Calcium ATPase (SERCA) pump, leak, plasma membrane Ca
2+
ATPase (PMCA) channel, sodium-calcium exchanger (NCX), ryanodine receptor (RyR), and [NO]-dependent Ca
2+
flux. The numerical findings show that superdiffusion and cell memory with several cellular mechanisms significantly affect the regulation of the interacting nonlinear calcium, IP
3, and NO dynamical systems in neuronal cells. Neurotoxic events potentially contributing to disease-related conditions such as Alzheimer’s may result from dysfunction in the superdiffusion and memory of signaling ions and molecules, as well as the cellular mechanisms within neurons.
Pulsed loading of a magneto-optical trap on an atom chip with fast recovery of ultrahigh vacuum
Authors: Singh Vivek , Tiwari V B , Chaudhary A , Sarkar S , Mishra S R 
Published: December 2024

Abstract
Here, we present studies on pulsed loading of a rubidium (Rb) magneto-optical trap (MOT) in an ultra-high vacuum (UHV) environment on an atom chip. We have used a parallel combination of Rb dispensers for better heat dissipation to achieve fast UHV recovery in the chamber after the end of the current pulse to the dispensers. We have estimated the threshold heat energy required for activation of the dispensers for different values of current pulses. Although a pulse with a higher current value and shorter duration has a lower threshold heat energy, we operated the dispensers at moderate current pulse parameters (24 A, 10 s) for protection of the circuits. Nearly,

3
×

10

7

cold

87

Rb

atoms were loaded in the MOT using this current pulse, with a UHV recovery time of ∼600 ms in the chamber. This fast recovery of UHV in the MOT chamber is useful for further experiments such as magnetic trapping and evaporative cooling of atoms in the same chamber.
Complexity growth for AdS black holes in the presence of backreaction*
Authors: Guo 郭 Long 龙 , Zhang 张 Zi-qiang 自强 
Published: December 2024

Abstract
We investigate the holographic complexity in backreacted gravity backgrounds according to the complexity-action conjecture. The backreaction considered here originates from the presence of static strings evenly distributed over the system. We exploit a probe string in the bulk and evaluate the Nambu-Goto action and its dependence on backreaction. The results suggest that, for slower strings, the complexity increases with increasing backreaction, in accordance with the findings of holographic entanglement entropy. However, for faster strings, the situation is different. Furthermore, we analyze the relationship between complexity and space dimension as well as string velocity.
Effective potential and topological photon spheres: a novel approach to black hole parameter classification
Authors: Afshar Mohammad Ali S. , Sadeghi Jafar 
Published: December 2024

Abstract
In this paper, we base our analysis on the assumption that the existence of a photon sphere is an intrinsic characteristic of any ultra-compact gravitational structure with spherical symmetry. Utilizing the concept of a topological photon sphere, we categorize the behaviors of various gravitational models based on the structure of their photon spheres. This innovative approach enables us to define boundaries for black hole parameters, subsequently enabling us to classify the model as either a black hole or naked singularity. We demonstrate that the presence of this interplay between the gravitational structure and the existence of a photon sphere is a unique advantage that can be utilized from both perspectives. Our observations indicate that a gravitational model typically exhibits the behavior of a horizonless structure (or naked singularity) when a minimum effective potential (a stable photon sphere) appears within the studied spacetime region. Additionally, in this study, we investigate the effect of this structure on the behavior of the photon sphere by selecting models that are affected by Perfect Fluid Dark Matter (PFDM). Finally, by analyzing a model with multiple event horizons, we show that the proposed method remains applicable even in such scenarios.
Evaluating surface quality of heterogeneous surfaces produced by non-conventional machining technologies: methodological advances and challenges
Authors: Vrbová H , Bilek O , Pata V , Endlerová D , Knedlová J , Hořava C 
Published: December 2024

Abstract
This paper is focused on the evaluation of heterogeneous surface quality. In the realm of scientific practice, there exists a significant inconsistency in the methodologies employed to investigate heterogeneous surfaces produced by non-conventional machining technologies. Traditional approaches are inadequate for these types of surfaces due to the presumption of surface roughness homogeneity, which does not account for the complexities and variations inherent in heterogeneous surfaces. The utilization of unsuitable assessment methods can significantly hinder the research and development efforts related to these advanced technologies, potentially stalling innovation and the optimization of machining processes. However, through an initial investigation of roughness data obtained from heterogeneous surfaces, discernible patterns have emerged. These patterns suggest a promising opportunity for the development of a coherent and standardized approach to surface quality assessment. Such an approach would enhance the accuracy and reliability of evaluations, thereby supporting the continued advancement and refinement of non-conventional machining technologies. The findings underscore the necessity for a shift towards more sophisticated and tailored assessment methods that can accommodate the unique characteristics of heterogeneous surfaces.
Statistical evaluating the effect of the plasma process parameters on the material removal rate and the cutting edge radius sizes of carbide cutting inserts
Authors: Vopát T , Podhorský Š , Ludrovcová B , Jurina F 
Published: December 2024

Abstract
The paper introduces an innovative method for rounding the edges of cemented carbide cutting tools using plasma discharges in an electrolyte. The aim of the article is to statistically evaluate the influence of the process parameters on the material removal rate (MRR) and the cutting edge radius sizes (r
β). The measured data were analyzed in the software Minitab. From the results of the ANOVA (Analysis of Variance) for material removal rate it is noticeable, that observed input process parameters (electrolyte concentration, temperature of the electrolyte and voltage) had a significant influence on measured responses. Specifically, MRR increases as the electrolyte concentration, voltage, and temperature of the electrolyte decrease. Similar to MRR and r
β are significantly influenced by these process parameters. Specifically, the radius increases more rapidly with decreasing electrolyte concentration, voltage, and temperature of the electrolyte.
Influence of final turning on SCC susceptibility and corrosion properties of austenitic stainless steel 08Ch18N10T
Authors: Kudláč M , Dománková M , Bártová K , Gavalec M , Slnek D 
Published: December 2024

Abstract
Final machining, such as final turning or final milling, aims to smooth the given machined surface of the material and obtain dimensional tolerance. However, with tough materials like austenitic stainless steels, where deformation hardening also occurs, the machining of these materials is complicated, and consequently the character and properties of the machined surface of these steels can have a negative impact on corrosion resistance. The affected parameters may include surface microhardness, roughness or residual stresses. In this work, the influence of final tur 10ning on stress corrosion cracking susceptibility and corrosion resistance of austenitic stainless steel 08Ch18N10T was monitored where as a tool a replaceable double sided sintered carbide cutting plate with a negative rake angle was used. A combination of two machining parameters was set up: feed (0.12, 0.2 and 0.3 mm) and cutting speed (100 and 250 m min −1). The roughness, microhardness and the surface deformation zone depth were analysed on the machined surface. It was found that hardness but also roughness increased with increasing tool feed. Using the exposure of samples in a boiling MgCl2 solution, susceptibility to stress corrosion cracking was observed. Density of cracks as well as the depth or length of cracks into the material were studied and evaluated using SEM and ImageJ software. Within increasing feed, the density of cracks decreased, on the contrary, the length and depth of cracks increased. Electrochemical potentiokinetic reactivation analysis, a double loop method, was used to determine sensitization to intergranular corrosion. The samples were determined to be non-sensitized. This method also showed the effect of roughness on the resulting polarization scans.
The impact of generator parameters on cutting width in machining nickel alloys using WEDM technology
Authors: Šimna V , Nekrasov S , Oliinyk Yaroslav 
Published: December 2024

Abstract
The objective of this study is to analyze the influence of generator parameters on the kerf width in Wire Electrical Discharge Machining (WEDM) technology for the nickel alloy Inconel 718. An experiment was designed using selected parameters that could affect the kerf width based on the acquired knowledge. The introduction covers the general principles of EDM and WEDM technology, discusses the method of spark generation using a generator, and focuses on how electrical discharge machining impacts Inconel 718. The experimental part was conducted on a WEDM machine from Charmilles Technologies. During the experiment, two responses were recorded: the kerf width, measured using DinoLite and Alicona optical devices, and the cutting speed. The final part of the thesis presents a statistical evaluation of the influence of individual parameters on the cut.
Evidence of charge multiplication in thin 25 μm × 25 μm pitch 3D silicon sensors
Authors: Gentry A. , Boscardin M. , Hoeferkamp M. , Povoli M. , Seidel S. , Si J. , Dalla Betta G.-F. 
Published: December 2024

Abstract
Characterization measurements of
25 μm × 25 μm pitch 3D silicon
sensors are performed, for devices with active thickness of
150 μm. Evidence of charge multiplication caused by impact
ionization below the breakdown voltage is observed in sensors
operated at -45 ∘C. Small-pitch 3D silicon sensors
have potential as high precision 4D tracking detectors that are also
able to withstand radiation fluences beyond
1016 neq/cm2. This is applicable for use at future
facilities such as the High-Luminosity Large Hadron Collider and the
Future Circular Collider. Characteristics of these devices are
compared to those of similar sensors of pitch
50 μm × 50 μm, showing
comparable charge collection at low voltage, and acceptable leakage
current, depletion voltage, breakdown voltage, and capacitance
despite the extremely small cell size. The unirradiated
25 μm × 25 μm sensors exhibit
charge multiplication above about 90 V reverse bias, while, as
predicted, no multiplication is observed in the
50 μm × 50 μm sensors below
their breakdown voltage. The maximum gain observed below breakdown
is 1.33.