bluuebunny/crossref_metadata_2025_split huggingface dataset:
Background to enotourism
Authors: Rivas Carmona María del Mar 
Published: October 2023

Abstract
Oenological tourism as we know it today is deeply related to the
historical changes that took place in the first part of the 19th century,
affecting the processes of cultivation, production and trade of wine in
Spain. This work aims to provide a vision of wine and its sociocultural
environments through the gaze of the 19th century traveller Cyrus Redding.
Redding’s account is as documentary as it is literary, and his data provides
an invaluable source of information about the vineyards, the varieties of
grapes and wines, the processes of elaboration, production, packaging,
transport, and so many more relevant socio-cultural, historical and economic
issues related to wine. Of special interest to linguists and translators is
the contribution of an invaluable terminology database.
A new rolling bearing fault diagnoses method based on period-doubling bifurcation in the Hindmarsh–Rose model
Authors: Liu Yan , He Yiming , Zhang He , Xu Yeyin , Cheng Yulin 
Published: October 2023

Abstract
The Hindmarsh–Rose (HR) model is a three-dimensional oscillators susceptible to initial values, making it capable of amplifying even the slightest variations. On this basis, we proposed a rolling bearing fault identification method based on period-doubling bifurcation in the HR model and constructed a bearing fault experimental platform to validate our approach in this paper. Initially, we analyze the HR model’s bifurcation characteristics using the discrete mapping method to identify oscillators suitable for detecting bearing faults. We then select the multiplicative period bifurcation points of the HR model to differentiate between different types of bearing faults. Next, we decompose and reconstruct vibration signals using the Hilbert–Huang transform and calculate the amplitude characteristics of the fault frequency band as the input for the HR detection oscillator. Finally, bearing faults are identified based on the phase trajectory of period-doubling. Furthermore, a comparative analysis is conducted between the proposed methodology and the employment of the empirical wavelet transform. Our approach presents a new perspective for utilizing nonlinear oscillators in bearing fault diagnosis.
Liquid film parameter measurement based on thermal distribution sensor in horizontal annular flow
Authors: Zhao Ning , Sun Mingcong , Zhang Tianyu , Pang Lili , Zhang Shuanzhu , Song Yajing , Liang Yujiao 
Published: October 2023

Abstract
Liquid film is an important carrier of mass and heat transfer in annular flow, and the parameter detection of which plays an important role in the energy metering of natural gas production processes and the safe and reliable operation of cooling and heating systems. In this paper, a liquid film velocity equation is derived based on the analysis of the heat balance equation between the liquid film and tube wall. According to the constant power principle, the thermal distributed flow measurement sensor is designed by using the multi-physical field coupling simulation technique According to the momentum balance equation of the Laurinat model, considering the pump mechanism of the disturbance wave and using magnitude comparison and stress balance, a liquid film thickness circumferential distribution model in the horizontal annular flow is proposed. Utilizing the model and designed sensor, the liquid film thickness of four locations (0°, 90°, 180°, 270°) measurements are obtained for 64 horizontal annular flow conditions. Laboratory results indicate that the mean absolute percent error of the model is 32.66% and the 82.81% relative error is within the ±30% error band.
A critical comparative review of generalized gradient approximation: the ground state of Fe3Al as a test case
Authors: Všianská Monika , Friák Martin , Šob Mojmír 
Published: October 2023

Abstract
Quantum-mechanical calculations have become an indispensable tool for computational materials science due to their unprecedented versatility and reliability. Focusing specifically on the Density Functional Theory (DFT), the reliability of its numerous implementations was tested and verified mostly for pure elements. An extensive testing of binaries, ternaries and more-component phases is still rather rare due to a vast configurational space that is nearly infinite already for binaries. Importantly, there are well known cases of theoretical predictions contradicting experiments. In this paper, we analyze the failure of theory to reproduce correctly the ground state of the Fe3Al intermetallic compound. Namely, most exchange-correlation (xc) energies within the generalized gradient approximation (GGA) predict this material in the L12 structure instead of the experimentally found D03 structure. We test the performance of 36 combinations of 6 different GGA parametrizations and 6 different Fe and Al potentials. These combinations are evaluated employing a multi-dimensional multi-criteria descriptor {

Δ
E

, a, {

μ

F
e

}, {C

ij
}} consisting of fundamental thermodynamic properties (energy difference

Δ
E

between the D03 and L12 structures), a structural aspect (lattice parameter a), electronic-structure related magnetic properties (local magnetic moments of Fe atoms {

μ

F
e

}) and elastic properties (a complete set of second-order elastic constants {C

ij
}). Considering the thermodynamic stability as the most critical aspect, we identify the Perdew–Wang (1991) GGA xc-functional parametrization as the optimum for describing the electronic structure of the Fe3Al compound.
Wellposedness for a (1+1)-dimensional wave equation with quasilinear boundary condition
Authors: Ohrem Sebastian , Reichel Wolfgang , Schnaubelt Roland 
Published: October 2023

Abstract
We consider the linear wave equation

V
(
x
)

u

t
t

(
x
,
t
)
−

u

x
x

(
x
,
t
)
=
0

on

[
0
,
∞
)
×
[
0
,
∞
)

with initial conditions and a nonlinear Neumann boundary condition

u
x

(
0
,
t
)
=
(
f
(

u
t

(
0
,
t
)
)

)
t

at x = 0. This problem is an exact reduction of a nonlinear Maxwell problem in electrodynamics. In the case where

f
:

R

→

R

is an increasing homeomorphism we study global existence, uniqueness and wellposedness of the initial value problem by the method of characteristics and fixed point methods. We also prove conservation of energy and momentum and discuss why there is no wellposedness in the case where f is a decreasing homeomorphism. Finally we show that previously known time-periodic, spatially localized solutions (breathers) of the wave equation with the nonlinear Neumann boundary condition at x = 0 have enough regularity to solve the initial value problem with their own initial data.
Laying the foundations of heliocentrism in primary school II: looking through the eyes of Galileo and Bessel
Authors: Pincelli M M , Formichella M Del C , Tolosa M F , Aires G Rodríguez , Otranto S 
Published: October 2023

Abstract
In this work, a didactic sequence for students with ages 9–10 that provides an experimental approach to the stellar parallax concept and revisits the events that humanity had to transit before the heliocentric model was accepted is introduced. This sequence complements our adaptation of the first observation attempted by Galileo to demonstrate the heliocentric hypothesis to be correct and that was specifically designed for ages 12–13. An experimental setup designed to mimic Bessel observations is also introduced in order to bridge the gap between the early attempt by Galileo and the present state of knowledge.
Visualizing the motion of a damped torsional oscillator using an optical lever
Authors: Singh Mamraj 
Published: October 2023

Abstract
This study aims to visualize the motion of an underdamped torsional oscillator using an optical lever. This involves employing an optical setup to magnify and measure the angular displacement of the torsional oscillator as it undergoes oscillations and damps over time. By analysing a video recording of an image of a filament formed by a concave mirror attached to the damped torsional oscillator, we observed an exponential decay in the time-averaged amplitude.
Measuring wavelength of laser beam using single slit diffraction: a simple but precise experiment using webcam and ImageJ software
Authors: Deb Dwaipayan , Chakrabarty Subhasish , Roy Choudhury Saumyadeep 
Published: October 2023

Abstract
We explore a precise method for determining the wavelength of light using a single-slit diffraction experiment. Normally, within a college level physics lab, an optical bench and a light detector arrangement is used in this experiment and the position of the maxima and minima are manually determined. This method is inaccurate, lengthy, and time consuming. We replace the light-detector by a paper-screen and webcam arrangement to record the image of the diffraction pattern with a computer. Then the recorded images are analysed with a software called ImageJ to determine the span of central maxima which is finally used to determine the wavelength of the incident light.
Line integrated density measurements on the Versatile Experiment Spherical Torus (VEST) using frequency sweep interferometer
Authors: Seo Seong-Heon , Wang J , Lee S J , Byun J H , Lee K D , Sung C , Hwang Y S 
Published: October 2023

Abstract
A frequency sweep interferometer (FSI) operating in the frequency range of 50–75 GHz is installed in the versatile experiment spherical torus spherical tokamak to measure the line integrated density (LID). FSI measures the time derivative of phase to calculate the group delay, which is proportional to the LID under the condition that the microwave frequency is much higher than the plasma frequency. Since the group delay is calculated from the time derivative of phase and the frequency sweep rate, FSI is very sensitive to the measurement noise. In the view point of signal processing, derivative exaggerates the measurement noise. Therefore, sophisticated techniques for phase measurement and frequency linearization are required to obtain meaningful results with FSI. The detailed techniques and the hardware setup are explained in the paper. The LID measured by FSI is benchmarked with the LID measured by a conventional 94 GHz heterodyne interferometer. The two measurements agree well. A conventional interferometer can no longer provide LID when severe phase errors occur. This is because phase errors propagate to subsequent measurements. However, FSI provides LID during the entire discharge time successfully regardless of frequent measurement failure because the LID is obtained in FSI from the time derivative of phase rather than the phase. In this sense, FSI is suitable as a diagnostics for steady state plasmas. The main cause for the phase errors is identified as the beam path displacement due to the refraction of the plasma.
Green synthesis of silver nano particles using Dracaena Trifasciata plant extract and comparison of fatty acids and amides capping agents
Authors: Ain Qurat Ul , Alkadi Muath , Munir Junaid , Qaid Saif M H , Ahmed Abdullah Ahmed Ali 
Published: October 2023

Abstract
Green synthesis of NPs evades many of the deleterious aspects by permitting the synthesis of nanoparticles at relatively low temperatures, pH and pressure, all at a significantly lower cost and short time. A bottom-up approach is used for the synthesis of silver nanoparticles formed due to the reduction of silver ions because of the existence of the phytochemicals contained in the Dracaena Trifasciata plant extract, which is primarily used for the study of green synthesis. X-ray diffraction, scanning electron microscope, UV–vis spectroscopy, and Fast Fourier Infrared spectroscopy characteristic techniques are used to analyze the nature of the silver nanoparticles formed by the green synthesis method. To prevent the over-growth of silver nanoparticles and avoid their aggregation, one fatty acids based and one amides based capping agent has been used for the comparison purpose for the preservation of the silver nanoparticles in term of shape, size and coagulation, which is a novel study. Amides interacted with the silver nanoparticles via electrostatic interactions which result in strong stabilization compared to the fatty acids which make van der wall interactions with the surface of the nanoparticles but for bio compatibility and environmentally friendly applications, fatty acid based capping agent can be preferred as these NPs are also suitable for the use in the field of medicine and pharmaceuticals.
The calculation of ro-vibrational energies, franck-condon factors and r-centroids for Yttrium/Scandium oxides in D-dimension
Authors: Taş Ahmet 
Published: October 2023

Abstract
The spectroscopic data as ro-vibrational energy values, Franck-Condon Factors and r-centroids are obtained for Yttrium/Scandium oxides with (B
2Σ+, X
2Σ+) different electronic states. Ro-vibrational energy values are calculated by bound state solution of the Schrödinger equation for the general molecular potential by applying Pekeris-type approximation to the centrifugal term in D-dimensional. Using these solutions, the relation giving the bound state energy eigenvalues and the corresponding wave functions expression are derived. The Franck-Condon factors and r-centroids values are determined by using Fraser-Jarmain method for the B
2Σ+ → X
2Σ+ electronic transitions in both molecules. All the results obtained are given numerically in the tables. The obtained values are compared with the previously get data in the literature and it is seen that the results are consistent.
Neutrino-Axion Couplings and the neutrino-mass
Authors: Civitarese O. 
Published: October 2023

Abstract
The Peccei and Quinn axions are low-mass pseudo-scalar neutral bosons whose existence was proposed to explain for the spontaneous breaking of the CP invariance in the early Universe. In the minimal (SU(2)
left
⊗ U(1)) version of the leptonic sector of the electroweak lagrangian flavor neutrinos are massive. They are described as linear combinations of neutrino mass eigenstates and they oscillates between flavor states. However the mass mechanism which gives their masses is still unknown. In this talk we discuss a possible mechanism to explain for non-zero neutrino masses, which is based on the treatment of neutrino-axion interactions.
Dynamics in Nuclei
Authors: Aprahamian Ani , Lesher Shelly R. , Lee Kevin 
Published: October 2023

Abstract
The nucleus is a complex many-body system with some remarkable emergent collective properties of multiple nucleons acting together. Bohr and Mottelson [1] provided a description of collective motion in nuclei based on geometrical shapes with superimposed oscillations around those shapes. Later, Lie algebras and symmetries were used to describe nuclear dynamics [2], followed by advances in the shell model approach [3] with new effective nucleon-nucleon two- and three-body interactions, and more recently with Hartree-Fock-Bogoliubov approximations within the extended generator coordinate method [4]. Yet, the underlying science question has remained the same. In nuclei, where there is explicit deformation in the ground state, “are the low-lying 0+ states collective vibrations built on the ground state or are they minima of a coexisting shape?” Ref. [4] has shown that for a significant percentage of K = 0+ excitations built on the deformed ground state (g.s.) should, in fact, be a collective vibration. The question has remained open due to sufficiently convincing experimental data with lifetimes, transfer reaction cross sections, and E0 transitions [5]. This paper summarizes the experimental situation regarding the lifetimes of 0+ states.
Analysis of α + 16O elastic scattering in the semi-microscopical dispersive optical model
Authors: Gomez-Rivera S. , Belyaeva T. L. 
Published: October 2023

Abstract
We study the elastic scattering cross sections of the α +16O system at 49.5, 69.5, and 80.7 MeV using the optical potentials calculated in the framework of the semi-microscopical dispersive optical model. In this model, the optical potential contains an energy-independent part calculated in the double folding model with a realistic effective nucleon-nucleon interaction, as well as an energy-dependent dynamic polarization potential, the parameters of which are adjusted to the data. The parameters of the real and imaginary parts of the dynamic polarization potential are connected by the dispersion relations.
Investigating the Primordial Universe through nuclear physics
Authors: Pizzone R.G. , Spampinato C. , Sergi M.L. , Spartá R. , Zanatta-Martinez T. ,   ASFIN collaboration
Published: October 2023

Abstract
Big Bang Nucleosynthesis (BBN) requires several nuclear physics inputs and nuclear reaction rates. An up-to-date compilation of direct cross sections of is given, being these ones among the most uncertain bare-nucleus cross sections. A particular attention is devoted to recently indirectly measured cross-section which give important hints for the nuclear astrophysics community.
In reality, a significant experimental effort has been made over the past 10 years to explore reactions important to the BBN and determine their astrophysical S(E)-factor using the Trojan Horse Method (THM). Then, numerical calculations are made in the relevant temperature ranges for BBN (0.01<T9 <10) to determine the reaction rates and the relative error for the four reactions of interest. The effects of these values on the calculated primordial abundances and isotopical composition for H, He, and Li were then assessed by using them as input physics for computations of primordial nucleosynthesis. Additionally, recent findings regarding the 7Be(n,alpha)4He reaction rate were taken into consideration. These were put up against estimates of primordial abundance derived from observation at various astrophysical places. Additionally, perspectives on reactions will be examined.
Applying fully convolutional networks for beam profile and emittance measurements
Authors: Zhu Wenchao , Wei Zhengyu , Liang Yu , Xie Chunjie , Lu Ping , Lu Yalin , Wang Lin , Li Haohu , Zhou Zeran 
Published: October 2023

Abstract
The transverse cross-sectional size and emittance are
critical beam parameters that characterize the performance of the
accelerator and assess the state of the beam. Inspired by the
success of machine learning in image processing tasks, we have
crafted a bespoke measurement system with a primary focus on
accurately determine the transverse cross-sectional size and
emittance of the beam. The system utilizes a beam spot detector to
convert the beam spot to a light spot image, which is then projected
onto the CCD camera through the telecentric lens for the
acquisition. The image data collected by the camera is subsequently
imported into the EPICS database developed based on ADAravis
software. We employ the Gaussian fitting technique on the collected
images to accurately calculate the cross-sectional size of the
beam. Furthermore, by incorporating the four-level iron scanning
method, the lateral emittance of the beam is calculated in a
comprehensive manner. To suppress the salt and pepper noise
introduced due to the presence of dark current and beam shooting
phenomena on the transmission line, we propose a novel fully
convolutional neural network (FCN) design with preactivated residual
units. The test conducted at HLS-II confirms that the measurement
uncertainty of this system is superior to 27.5 μm. Moreover,
when operating at an electron beam energy of 800 MeV, the measured
emittance of the accelerator is found to be 38.515 nm·rad, a
value closely aligning with the theoretical value of
36.2 nm·rad. These compelling results provide strong evidence
supporting the reliability of the emittance measurement algorithm,
making it suitable for deployment in the forthcoming terahertz
accelerator.
Construction and measurement of the prototype side-coupled standing-wave tube for electron Linac
Authors: Zarei Sara , Ghasemi Farshad , Sanaye Hajari Shahin , Aghayan Mahdi , Shirshekan Mahyar , Hasanpour Oveis , Abbasi Davani Fereydoun , Lamehi Rachti Mohammad 
Published: October 2023

Abstract
Due to Iran's growing need for accelerators in various
applications, NSTRI (Nuclear Science and Technology Research
Institute) has defined a 6 MeV e-Linac (electron linear
accelerator) project for medical and inspection applications. This
electron accelerator has a side-coupled standing wave tube that
operates in π/2 mode at the frequency of 2998.5 MHz. This paper
presents a summary of the construction and cold test stage of the
prototype tube for this accelerator. The prototype tube was
constructed from aluminum and clamped with bolts.In the cold test
stage, low-power RF measurements werecarried out using a
side-coupled cavity tuning method and a bead-pull measurement
technique. Using a network analyzer, magnetic and electric probes,
and a mechanical structure constructed for this tube made the RF
tuning possible. After tuning, the resonant frequency, unloaded
quality factor, and effective shunt impedance of the aluminum tube
were achieved at 2998.57 MHz, 7970, and 83.25 MΩ/m
respectively.
Effects of an external electric field on one-phonon resonant and electron Raman scattering in a semiconductor quantum wire
Authors: Betancourt-Riera Re , Betancourt-Riera Ri , Ferrer-Moreno L A , Fernandez Lozada Maricela , Riera R 
Published: October 2023

Abstract
In this work, the influence of an external electric field is studied in two cases: one-phonon resonant Raman scattering and one-phonon electron Raman scattering, processes that occur in a semiconductor quantum wire with cylindrical symmetry and finite potential barriers. Where we have considered that the electric field is homogeneous and transversal to the system axis. To carry out this study, we obtain a mathematical expression for the differential cross-section for both Raman processes, where for one-phonon resonant Raman scattering, intra-band and inter-band optical transitions are considered, while for one-phonon electron Raman scattering, only intra-band optical transitions are considered. Therefore, to determine the electronic states, we use a valid model when the electric field is weak with respect to confinement. In the case of the Fröhlich electron–phonon interaction, we use a model in which the oscillation modes are completely confined, a model that was developed within the framework of a macroscopic continuum model. Then, the singularities present in the Raman spectra and the effect of the electric field on their position and intensity are analyzed. Finally, how the electric field affects the electron–phonon interaction and the selection rules for optical transitions in a semiconductor quantum wire with cylindrical symmetry are shown.