bluuebunny/crossref_metadata_2025_split huggingface dataset:
Revised Parameters for the IAPWS Formulation for the Ionization Constant of Water Over a Wide Range of Temperatures and Densities, Including Near-Critical Conditions
Authors: Arcis Hugues , Bachet Martin , Dickinson Shirley , Duncanson Iain , Eaker Richard W. , Jarvis Jennifer , Johnson Ken , Lee Christopher A. , Lord Fred , Marks Chuck , Tremaine Peter R. 
Published: May 2024

The literature database for the ionization constant of water, pKw, has been critically reevaluated to include new accurate flow conductivity data recently reported at near-critical and supercritical conditions. Recently published equations to express the limiting conductivity of fully ionized water were used to correct the conductivity data and yield more accurate pKw values at water densities below 0.6 g cm−3. The ability of the functional forms adopted by the 1980 and 2006 International Association for the Properties of Water and Steam releases to fit the near-critical and supercritical data was tested. Revised parameters for the 2006 “simple” function were derived to improve the accuracy of the model under these conditions. The data fitting procedure made use of estimated standard uncertainties as well as a weighting parameter for each dataset to minimize potential bias due to the very large amount of flow conductivity data now available. Calculations based on the revised formulation were found to be consistent with independent high-temperature data measured using calorimetry and density methods. The revised equation is accurate to within the estimated standard uncertainty limits over the range 0–1000 °C, p = 0–1000 MPa.
Taylor’s law and quasi-experimental hunting of invasive wild boar and axis deer in a protected area of north-eastern Argentina
Authors: Gürtler Ricardo E. , Nicosia Gabriela , Delaloye Aldo , Maranta Aristóbulo A. , Li Puma María C. , Cohen Joel E. 
Published: May 2024

Context Overabundant ungulate populations frequently cause ecological and economic damage and are difficult to control. Sustained culling efforts at El Palmar National Park have largely reduced wild boar (Sus scrofa) numbers and damage but have failed to halt the ever-increasing abundance of axis deer (Axis axis) for undefined reasons. Multi-year camera-trap surveys indicated a mismatch between deer core activity and the usual timing of hunting sessions. Aim We used the spatial and temporal forms of Taylor’s law (TL, a power relationship between the sample mean and sample variance) to test whether overnight hunting sessions are more effective for culling axis deer and wild boar than are daytime sessions, and assessed whether they modify ungulate harvest composition. Methods We implemented a quasi-experimental trial (i.e. ‘experiments in which units are not assigned to conditions randomly’), including nine alternating blocks of four to seven hunting sessions each (overnight or daytime) in which an average of 42 hunter groups performed controlled shooting over bait from fixed elevated blinds, retrieved, sexed, weighed and measured all quarry. Key results The relationship between the mean and variance of ungulate crude catch per hunting-party session and crude catch per unit effort (CPUE, where effort is measured in hunting-party hours) by hunting shift satisfied the spatial and temporal TL. On average, axis deer catch was 2.39–2.61 times greater in overnight than in daytime sessions, whereas CPUE indices were 1.54–1.73 times greater. For wild boar, overnight sessions returned catches similar to (0.94–1.03×), and a significantly lower CPUE (0.63–0.67×) than for daytime sessions. The harvest indices were substantially aggregated in daytime sessions only, and were consistently skewed towards yearlings or subadults and males, especially among adult deer. Overnight sessions culled proportionally more adults and more pregnant hinds and sows than did daytime sessions, and significantly heavier deer and wild boar males. Conclusions Overnight sessions were substantially more effective for culling deer than were daytime sessions, and selected for individuals with greater fitness. Stage- and male-skewed harvest most likely explains the steady population growth of axis deer despite increasing hunting pressure over a decade. Implications Adjusting the schedule of hunting sessions to time intervals of peak ungulate activity substantially increased the efficiency of management efforts in terms of removal rates and reproductive value of the culled specimens.
The effect of linguistic and extralinguistic features on EFL adverb placement
Authors: Özkan Miller Vildan , Larsson Tove 
Published: May 2024

Abstract

Larsson et al. (2020) emphasize the importance of taking linguistic
variables (e.g., verb type) into consideration in studies of adverb placement. This study looks at the positional distribution of
15 epistemic adverbs from texts written by L1 Turkish, German, and English students, with the aim of testing whether the findings
from Larsson et al. can be generalized to a different register (argumentative writing) and a typologically more distant language
(Turkish). We also revisit the question of whether there is L1 transfer. The results confirm Larsson et al.’s finding that the
main predictors of adverb placement are linguistic, although some register differences were noted, such as higher frequencies of
adverbs in the argumentative texts. Furthermore, the L1 Turkish students made especially frequent use of the clause-initial
position (e.g.,
probably she is here).
Individual differences and task-based language teaching
Authors: Li Shaofeng 
Published: May 2024

Abstract
This chapter provides an in-depth discussion of the theory, research, and practice of individual
difference (ID) factors in task-based language teaching (TBLT). It starts with an overview of the scope and taxonomy
of IDs in second language learning, followed by a discussion of the theoretical models that provide insights into IDs’
roles in TBLT. It then introduces an organizing framework covering: (a) the nature of task IDs, (b) the utility of
implicit IDs in TBLT, (c) the dynamicity of task IDs, (d) the expanded scope of task IDs, and (e) the importance of
research on ID-treatment interaction. Subsequently, the chapter shifts its focus to the research on IDs in TBLT,
including methods, perspectives, and empirical evidence on major ID factors – emotions (anxiety and enjoyment),
language aptitude, motivation, and working memory. Based on the research findings, recommendations are made on ways to
apply research findings to pedagogy from five perspectives: changing ID propensities, adapting instruction to mitigate
or cancel ID effects, matching ID profile and instruction type, using hybrid instruction, and providing choice. The
chapter concludes by providing an overview of the significance and contributions of this volume and highlighting
prominent findings of the included chapters.
Revitalizing agricultural price mechanisms: A review and call for enhancement
Authors: Vohra Mehak , Sharma Vijaylaxmi 
Published: May 2024

Abstract
Indian agriculture has long faced criticism for its lack of a strong price policy, which leaves farmers at the mercy of changes in the market. Although it has been implemented for a few commodities, the minimum support price (MSP) system has not been all-encompassing nor has the implementation of market intervention measures yielded much respite. This study makes the case that a thoughtful combination of the private investments and market intervention schemes (MIS) along with existing regimes of MSP could provide greater results. A strategy like this might offer farmers greater all-encompassing assistance while guaranteeing reasonable prices and stable markets. This study has reviewed two key existing frameworks by examining their strengths and flaws. Based on this analysis, it is possible to move forward by incorporating the best aspects of MIS and MSP. In addition to addressing the long-standing issues Indian farmers confront, this strategy could result in a more egalitarian and sustainable agriculture industry.
Future of Bianchi I magnetic cosmologies with kinetic matter
Authors: Lee Ho , Nungesser Ernesto 
Published: May 2024

Abstract
We show under the assumption of small data that solutions to the Einstein-Vlasov system with a pure magnetic field and Bianchi I symmetry isotropise and tend to dust solutions. We also obtain the decay rates for the main variables. This generalises part of the work (LeBlanc 1997 Class. Quantum Grav.
14 2281–301) concerning the future behaviour of orthogonal perfect fluids with a linear equation of state in the presence of a magnetic field to the Vlasov case.
Effects of p-wave interactions on Borromean Efimov trimers in heavy–light Fermi systems
Authors: Zhao Cai-Yun , Han Hui-Li , Shi Ting-Yun 
Published: May 2024

Abstract
We investigate the effects of p-wave interactions on Efimov trimers in systems comprising two identical heavy fermions and a light particle, with mass ratios larger than 13.6. Our focus lies on the Borromean regime where the ground-state trimer exists in the absence of dimers. Using pair-wise Lennard–Jones potentials and concentrating on the

L

π

=

1

−

symmetry, we explore the critical value of the interspecies s-wave scattering length a

c
at which the Borromean state appears in several two-component particle systems. Our exploration encompasses the universal properties of a

c
and the influence of p-wave fermion–fermion interactions on its value. We find that, in the absence of p-wave fermion–fermion interactions, a

c
is determined universally by the van der Waals radius and mass ratio. However, the introduction of p-wave fermion–fermion interactions unveiled a departure from this universality. Our calculations show that the critical interspecies scattering length a

c
now depends on the details of the fermion–fermion p-wave interaction. And, the presence of p-wave fermion–fermion interactions favors the formation of the Borromean state. Additionally, our investigation reveals that Efimov effect in the

1

−

symmetry persist even when the fermion–fermion interaction reaches the p-wave unitary limit.
Electronic coherences built by an attopulse control the forces on the nuclei
Authors: Cardosa-Gutierrez Manuel , Levine R D , Remacle F 
Published: May 2024

Abstract
Attopulses have an energy bandwidth broad enough to coherently excite several electronic states of molecules. Towards the control of chemical reactivity by attopulses we derive the quantum mechanical expression for the force exerted on the nuclei in such a vibronic wave packet both during and after the exciting pulse. Tuning the pulse parameters allows accessing specific electronic coherences that determine the force strength and direction during and after the pulse. Following the pulse, the force due to the non adiabatic interactions accelerates or slows down the motion of the vibronic wave packet on the excited electronic states and its sign controls the direction of population transfer. Computational results for the LiH and LiT molecules and the probing by the emission dipole are discussed.
Advances in high-power vertical-cavity surface-emitting lasers
Authors: Liu Jilin , Zhao Feiyun , Tang Zhiting , Zhang Xuhao , Ren Aobo , Wu Jiang 
Published: May 2024

Abstract
Vertical-cavity surface emitting lasers (VCSELs) have emerged as a highly promising light source with extensive applications in various fields, including consumer electronics, optical communication, metrology, sensing and ranging. Their low-cost, high conversion efficiency, and compact footprint make them particularly attractive for widespread adoption. While considerable success has been made in enhancing the performance and speed of VCSELs for optical communications, achieving high-power VCSELs with properties such as high output power, single transverse mode operation, and temperature stability for remote sensing applications remains a challenging endeavor. This review aims to provide a comprehensive overview of the recent advancements in the development of high-power VCSELs. By examining the advancements in active materials, device designs, array configurations, this review seeks to shed light on the current state-of-the-art and potential avenues for further improvement in high-power VCSEL technology.
A high sensitivity wide bandwidth spectral system for multiple K-edge imaging
Authors: Perion P , Brombal L , Delogu P , di Trapani V , Menk R H , Oliva P , Arfelli F 
Published: May 2024

Abstract
Spectral K-edge subtraction (SKES) is an imaging technique that takes advantage of the sharp rise in the mass attenuation coefficient of specific elements within an object at their K-edge to produce separate and quantifiable distributions of each element. In this paper, a high-sensitivity and wide bandwidth SKES imaging system for computed tomography applications on biological samples is presented. X-ray images are acquired using a wide and continuous energy spectrum that encompasses the absorption edges of the target materials. System characterization shows that high energy resolution (approximately

3
×

10

−
3

) and unprecedented large energy bandwidth (around 15%) are achieved over a field-of-view of several centimeters. Imaging results obtained on contrast elements relevant for biomedical applications, namely silver, iodine, xenon, and barium, demonstrate the system sensitivity to concentrations down to 0.5 mg ml−1. The achievement of a large energy bandwidth allowed the simultaneous imaging of the K-edges of iodine, xenon, and barium and provided an accurate concentration estimation and distinction of co-localized contrast elements, leading the way for future simultaneous cardiovascular (iodine), pulmonary (xenon), and gastrointestinal/inflammatory (barium) imaging applications.
Hexagonal warping effects on Bloch oscillations in proximitized Rashba systems
Authors: Yar Abdullah 
Published: May 2024

Abstract
Bloch oscillations (BOs) in Rashba systems, taking into account the effects of hexagonal warping and proximity-induced band gap, are reported. We find that in addition to real-space trajectories, the group and Berry velocities of Bloch electrons exhibit novel BOs which strongly depend on the crystal momentum. This oscillatory motion is affected significantly by variations in the strength of hexagonal warping and the proximity-induced band gap, originating from the substantial changes in the energy spectrum induced by these factors. In addition, it is shown that the Bloch oscillations are modified considerably under the influence of applied uniform in-plane electric and transverse magnetic fields, which allow for a geometric visualization of the Bloch dynamics. Interestingly, when the system is subjected to these fields simultaneously, it undergoes a dynamic phase transition between confined and de-confined states. This phase transition is tuned by the relative strength of the applied fields and is further influenced by variations in the strength of hexagonal warping and proximity-induced band gap. The appearance of such a transition is attributed to the interplay between the external fields and the intrinsic properties of the crystal lattice. Moreover, we find that the direct-current drift velocity shows negative differential conductivity, which is a characteristic feature of the BO regime.
Considerations on measurement of bidirectional transmittance distribution function of thick samples over a wide range of viewing zenith angles
Authors: Aschan Robin , Manoocheri Farshid , Ikonen Erkki 
Published: May 2024

Abstract
We delve into theoretical and experimental considerations for determining the spectral bidirectional transmittance distribution function (BTDF) of thick samples across a broad viewing zenith angle range. Nominally, BTDF is defined as the ratio of transmitted radiance to incident irradiance measured from the same plane. However, when employing thick samples for BTDF measurements, the viewing plane of the transmitted beam may shift from the front to the rear surface of the sample, altering the measurement geometry compared to using the sample front surface as the reference plane. Consequently, the viewing zenith angle from the sample rear surface increases relative to the sample front surface, and the sample-to-detector-aperture distance decreases by an amount corresponding to the sample thickness. We introduce a method for determining the BTDF of thick samples, considering the transformation of practical measurement results to a scenario where the measurements are conducted at a very large distance from the sample. To validate the method, we utilize a BTDF facility equipped with two instruments that significantly differ in their sample-to-detector-aperture distances. We evaluate the impact of a 2 mm sample thickness on the BTDF by assessing the ratio of transmitted and incident radiant fluxes as a function of viewing zenith angle relative to the sample rear surface. The evaluation is conducted in the wavelength range from 550 nm to 1450 nm in 300 nm steps, and in the viewing zenith angle range from −70° to 70° in 5° steps. Measurements are performed in-plane at an incident zenith angle of 0°. It is concluded that consistent determination of BTDF of a thick sample is possible by converting the experimental parameters of the real measurements at relatively short distances from the sample to correspond to those that would be obtained from measurements at very large distances from the sample.
Research on bearing fault diagnosis based on novel MRSVD-CWT and improved CNN-LSTM
Authors: Guo Yuan , Zhou Jun , Dong Zhenbiao , She Huan , Xu Weijia 
Published: May 2024

Abstract
As a critical component in mechanical equipment, rolling bearings play a vital role in industrial production. Effective bearing fault diagnosis provides a more reliable guarantee for the safe operation of the industrial output. Traditional data-driven bearing fault diagnosis methods often have problems such as insufficient fault feature extraction and poor model generalization capabilities, resulting in reduced diagnostic accuracy. To solve these problems and significantly improve the diagnosis accuracy, this paper proposes a novel fault diagnosis method based on multi-resolution singular value decomposition (MRSVD), continuous wavelet transform (CWT), improved convolutional neural network (CNN) enhanced by convolutional block attention module, and long short-term memory (LSTM). Through MRSVD, the vibration signal is decomposed layer by layer into multiple denoised signals, thus signal noise can be eliminated to the greatest extent to gain the optimal denoised signals; then through CWT, the optimal denoised signals are converted into two-dimensional time-frequency images so that the local and global characteristic information can be fully captured. Finally, through improved CNN-LSTM, feature extraction is greatly enhanced, resulting in high accuracy of fault diagnosis. Lots of experiments are organized to test the performance, and the experimental results show that the proposed method on various datasets has better diagnosis accuracy and generalization ability under different working conditions than other methods.
An integrated high precision absolute angular displacement sensor
Authors: Zhan Bingnan , Wu Changliang , Liu Xiaokang , Huang Pei , Yu Peiyu 
Published: May 2024

Abstract
This paper proposed a high precision absolute angular displacement time grating sensor, and was assembled into an integrated encoder. This absolute angle sensor contains two incremental sensors with N
1 and N
2 measurement period, respectively. N
1 and N
2 are mutually prime, and N
1 > N
2. The induction electrodes of the fine measurement component adopt differential design to minimize the effects of external electromagnetic interference and common mode interference between different sensing units so as to achieve high precision displacement measurement, the phase difference between two incremental sensor is used for absolute positioning. This absolute positioning method reduces the installation requirements and enhances their absolute positioning capability, enhancing adaptability and application prospects. The reflecting ring design simplifies the structure of the encoder and facilitates sensor integration. The induction output signals of different components are cross connected through lead wires to the reflecting ring far away from the measurement component to the first harmonic error during the measurement period. The reading heads adopt a round, uniformly distributed design scheme, and the average effect of the whole circumference closed ring sampling scheme is beneficial for improving measurement accuracy, reduce the influence of edge effects and parasitic capacitance on nonlinear errors within the measurement period and eliminating harmonic errors. A sensor prototype with a diameter of 83 mm was manufactured and assembled into an integrated encoder. Experimental results show that the sensor achieve a precision of 12″ over a full 360° measurement range and a resolution of 0.5″, and it can realize absolute positioning.
Linear response due to singularities
Authors: Bahsoun Wael , Galatolo Stefano 
Published: May 2024

Abstract
It is well known that a family of tent-like maps with bounded derivatives has no linear response for typical deterministic perturbations changing the value of the turning point. In this note we prove the following result: if we consider a tent-like family with a cusp at the turning point, we recover the linear response. More precisely, let T

ɛ
be a family of such cusp maps generated by changing the value of the turning point of T
0 by a deterministic perturbation and let h

ɛ
be the corresponding invariant density. We prove that

ε
↦

h
ε

is differentiable in L
1 and provide a formula for its derivative.
An Arduino experiment to determine the gravitational acceleration using a light interruption apparatus with PLX − DAQ data acquisition tool
Authors: Madey Ahmed 
Published: May 2024

Abstract
In this paper the author is presenting a novel experiment for measuring the gravitational acceleration using simple and cost effective apparatus with a regular pendulum, composed of an Arduino Uno and a light interruption circuit with an light dependent resistor (LDR) and an light emitting diode (LED), the data was recorded using PLX − DAQ data acquisition tool for further analysis, the experiment would be useful for introductory physics courses on the subject.
Effect of using multiple representations in teaching mechanics problem-solving on engineering students’ academic performance in Rwanda
Authors: Theogene Niyomufasha , Ntivuguruzwa Celestin , Mugabo Leon 
Published: May 2024

Abstract
In recent years, the use of multiple representations in physics teaching and learning has become more common. This study sought to determine if engineering students’ performance in Rwanda might be improved by the use of numerous representations when solving mechanics problems. Multiple representations improve students’ comprehension and recall of mechanics ideas, supporting efficient teaching methods and critical thinking. This study employed a quasi-experimental research design with pre-and post-test control and experimental groups. A total of 100 students were enrolled in the study, divided into two groups: the experimental group consisted of 52 students who received instruction using multiple representations, and the control group consisted of 48 students who received instruction using traditional methods. In the study, students’ performance was measured before and after intervention using a mechanics test. The mechanics problem-solving pre-test findings indicated a p-value greater than 0.05 between the control and experimental groups, indicating no statistically significant differences between the two groups. A post-test revealed a p-value < 0.001 between the groups, indicating that the experimental group outperformed the control group significantly. According to the findings, engineering student’s academic performance in physics can be improved through the use of multiple representations in teaching and learning mechanics problem-solving. This study will support the development of Rwandan education policies, instructional approaches, and global pedagogy are all supported by this study.