bluuebunny/crossref_metadata_2025_split huggingface dataset:
‘Together, soon enough’
Authors: Comer Joseph 
Published: September 2022

Abstract
Orienting to theoretical descriptions of ‘affective-discursive practices’ (Wetherell, 2012) and linguistic/semiotic landscapes as ‘affective regimes’ (Wee, 2016), this paper accounts for (some of) the complex ways in which the experience of pandemic and lockdown was articulated and felt across the landscape of Melbourne. I employ a novel combination of autoethnographic and citizen sociolinguistic approaches as self-reflexive research techniques. Working more-or-less chronologically, from the lowest ebbs to feelings of (relative) joy, importantly, this paper does not focus solely on negative articulations such as sadness or anxiety. Rather, it examines the affective resonance of expressions of love, kindness, and resilience in the landscape, and these affects’ intersection with chronotopes during and since isolation; from being locked down, to keeping spirits up, from top-down to bottom-up. This paper concludes with an orientation to hope: to Melburnians’ rejoicing in what they’ve achieved, and the belief that there can be an end to crisis.
Comparison of four-terminal-pair 1 pF, 10 pF, 100 pF and 1000 pF capacitance standards at frequencies of 10 kHz, 100 kHz, 1 MHz and 10 MHz (APMP.EM-S15)
Authors: Dai Dongxue , Yang Yan , Satish  , Homklintian Monthol 
Published: September 2022

Main text
In order to calibrate an LCR meter, metrological traceability of capacitance above 10 kHz becomes more and more important. For this reason, NIM (National Institute of Metrology, China)，NPLI (National Physical Laboratory, India) and NIMT (National Institute of Metrology, Thailand) have carried out research on capacitance metrology from 10 kHz to 10 MHz.
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 CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Report on the comparison of the realisations of the ITS-90 over the range 234.315 6 K to 933.473 K between Centro Español de Metrología (CEM) and Instituto Nacional de Metrología (SIM.T-K9.2)
Authors: Campo Dolores del , Gómez Elena , Sánchez Ciro Alberto , Méndez-Lango Edgar , Andrés Carvajal Sergio , Bohórquez Andrés Jhovanny 
Published: September 2022

Main text
The comparison of the realization of the International Temperature Scale of 1990 (ITS- 90) over the range 234,315 6 K (triple point of mercury) to 993,473 K (freezing point of aluminium) in the National Metrology Institutes of Spain (Centro Español de Metrología - CEM) and Colombia (Instituto Nacional de Metrología - INM) has been organized with the aim to provide support to the Calibration Measurement Capabilities claimed by INM in this range. Due to the participation of CEM in the regional comparison EUROMET.T-K9, the linkage with the corresponding key comparison, CCT-K9, is possible.
The measurements of this comparison were performed during September 2018 and June 2020.
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).
Update of the BIPM comparison BIPM.RI(II)-K1.Co-57 of activity measurements of the radionuclide 57Co to include the 2013 result of the POLATOM (Poland), the 2015 result of the NMISA (South Africa), the 2021 result of the CMI (Czech Republic), and to link the CCRI(II)-S6.Co-57 comparison
Authors: Michotte C , Courte S , Nonis M , Coulon R , Ratel G , Zimmerman B , Dziel T , Muklanowicz A , Ziemek T , Staden M J van , Rooy M W van , Lubbe J , Sochorová J , Auerbach P 
Published: September 2022

Main text
Three new participations in the BIPM.RI(II)-K1.Co-57 comparison have been added to the previous results and this has produced a revised value for the key comparison reference value (KCRV), calculated using the power-moderated weighted mean. A link has been made to the CCRI(II)-S6.Co-57 comparison piloted by the International Atomic Energy Agency (IAEA) in 2008 for which one sample of the 57Co radioactive solution was sent to the SIR. Two NMIs used the S6 comparison to update their degree of equivalence. The degrees of equivalence between each equivalent activity measured in the International Reference System (SIR) and the KCRV have been calculated and the results are given in the form of a table for the remaining seven NMIs in the BIPM.RI(II)-K1.Co-57 comparison and the three eligible participants in the CCRI(II)-S6.Co-57 comparison. A graphical presentation is also 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 CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with INRIM, February 2022
Authors: Viallon Joële , Idrees Faraz , Moussay Philippe , Wielgosz Robert , Revel Laura , Zucco Massimo 
Published: September 2022

Main text
As part of the ongoing key comparison BIPM.QM-K1, a comparison has been performed between the ozone national standard of Italy maintained by the Istituto Nazionale di Ricerca Metrologica (INRIM) and the common reference standard of the key comparison, maintained by the Bureau International des Poids et Mesures (BIPM). The instruments have been compared over a nominal ozone amount fraction range of 0 nmol/mol to 500 nmol/mol.
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 CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
A high-order shock capturing discontinuous Galerkin–finite difference hybrid method for GRMHD
Authors: Deppe Nils , Hébert François , Kidder Lawrence E , Teukolsky Saul A 
Published: September 2022

Abstract
We present a discontinuous Galerkin (DG)–finite difference (FD) hybrid scheme that allows high-order shock capturing with the DG method for general relativistic magnetohydrodynamics. The hybrid method is conceptually quite simple. An unlimited DG candidate solution is computed for the next time step. If the candidate solution is inadmissible, the time step is retaken using robust FD methods. Because of its a posteriori nature, the hybrid scheme inherits the best properties of both methods. It is high-order with exponential convergence in smooth regions, while robustly handling discontinuities. We give a detailed description of how we transfer the solution between the DG and FD solvers, and the troubled-cell indicators necessary to robustly handle slow-moving discontinuities and simulate magnetized neutron stars. We demonstrate the efficacy of the proposed method using a suite of standard and very challenging 1D, 2D, and 3D relativistic magnetohydrodynamics test problems. The hybrid scheme is designed from the ground up to efficiently simulate astrophysical problems such as the inspiral, coalescence, and merger of two neutron stars.
Study on superconducting properties of CeIrIn5 thin films grown via pulsed laser deposition
Authors: Kang Ji-Hoon , Kim Jihyun , Park Tae Beom , Choi Woo Seok , Park Sungmin , Park Tuson 
Published: September 2022

Abstract
We report the growth of CeIrIn5 thin films with different crystal orientations on a MgF2 (001) substrate using pulsed laser deposition technique. X-ray diffraction analysis showed that the thin films were either mainly a-axis-oriented (TF1) or a combination of a- and c-axis-oriented (TF2). The characteristic features of heavy-fermion superconductors, i.e. Kondo coherence and superconductivity, were clearly observed, where the superconducting transition temperature (T
c) and Kondo coherence temperature (T
coh) are 0.58 K and 41 K for TF1 and 0.52 K and 37 K for TF2, respectively. The temperature dependencies of the upper critical field (Hc

2) of both thin films and the CeIrIn5 single crystal revealed a scaling behavior, indicating that the nature of unconventional superconductivity has not been changed in the thin film. The successful synthesis of CeIrIn5 thin films is expected to open a new avenue for novel quantum phases that may have been difficult to explore in the bulk crystalline samples.
Bandgap manipulation of single and multi-frequency smart metastructures with random impedance disorder
Authors: Machado M R , Moura B B , Dey S , Mukhopadhyay T 
Published: September 2022

Abstract
Metamaterials and metastructures usually exhibit some form of periodicity that is broken due to randomness in the media, affecting the vibration and elastic wave propagation performance. Disorder in the periodicity caused by the variability in properties or geometry may lead to interesting physical phenomena such as trapping and scattering waves, wave reflection, and energy localisation. While the randomness may be attributed to manufacturing irregularities and quantifying its effect is crucial for ensuring adequate performance of a range of smart systems, and these effects can also be exploited for manipulating the wave properties. Here we investigate a smart metastructure in the form of a beam integrated with piezoelectric transducers coupled to a resonant shunt circuit. The piezoelectric shunt in a periodical arrangement can induce locally resonant bandgaps that can be employed in wave (and vibration) manipulation and control. This paper quantifies the uncertainty associated with electrical circuit components that affect the circuit impedance influencing wave and vibration control features. The smart unimorph meta-beam is formulated by spectral element method based on the Hamiltonian principle, and dispersion curves are estimated using the spectral transfer matrix method that relies on the Bloch-Floquet theorem. The first and second statistical moments are obtained from the stochastic simulations (

∼

10
4

realizations) that could be realized efficiently due to the current development of spectral element approach for analysing the disordered system. Further experimental validation and exploration of shunt circuit confirms the need to include the stochastic information on the numerical model used to design the metastructure. Numerical results of the unimorph meta-beam with single and multi-frequency shunt configuration show that the bandgap behaviour is sensitive to the random disorder associated with circuit impedance parameters. Such disorder can be exploited for enhanced functionalities of the meta-beam based on optimal RL shunt circuits for controlling structural vibration response along with wave propagation and attenuation.
Geometrically nonlinear model of piezoelectric wind energy harvesters based on vortex-induced vibration and galloping
Authors: Li Jiajie , Li Shen , He Xuefeng , Yang Xiaokang , Ye Yizhou , Li Jinghua 
Published: September 2022

Abstract
The interaction between vortex-induced vibration (VIV) and galloping could enhance the performance of wind energy harvesters (WEHs). Though VIV-galloping interaction may cause large amplitude wind-induced vibrations, the effects of geometrical nonlinearity were not considered in the modeling of VIV-galloping interactive piezoelectric WEHs (PWEHs). In this work, based on the extended Hamilton’s principle, a geometrically nonlinear model (GNM) of cantilevered PWEHs with VIV-galloping interaction was derived. The model includes both the transverse and axial aerodynamic forces, and considers the effect of the rotation of the bluff body on the aerodynamic forces. The aerodynamic coefficients were extracted by a piecewise polynomial fitting in a relatively large range of angle of attack for the square cross-sectional bluff body. Two flexible PWEH prototypes were fabricated and tested in a small wind tunnel to verify the proposed model. After the mechanical damping ratio of the low-coupling piezoelectric energy harvester prototypes were identified based on purely electrical measurements, the steady-state root mean square voltages of the prototypes with increasing wind speed were worked out using geometrically linear model (GLM) and the proposed GNM, respectively, and then compared with experiments. Both models can accurately predict the VIV-galloping interaction, but GNM is much more accurate than GLM at a relatively high wind speed. The proposed GNM provides a powerful tool to develop VIV-galloping interactive PWEHs.
Speed limits of the trace distance for open quantum system
Authors: Nakajima Satoshi , Utsumi Yasuhiro 
Published: September 2022

Abstract
We investigate the speed limit of the state transformation in open quantum systems described by the Lindblad type quantum master equation. We obtain universal bounds of the total entropy production described by the trace distance between the initial and final states in the interaction picture. Our bounds can be tighter than the bound of Vu and Hasegawa (2021 Phys. Rev. Lett.
126 010601) which measures the distance by the eigenvalues of the initial and final states: this distance is less than or equal to the trace distance. For this reason, our results can significantly improve Vu–Hasegawa’s bound. The trace distance in the Schrödinger picture is bounded by a sum of the trace distance in the interaction picture and the trace distance for unitary dynamics described by only the Hamiltonian in the quantum master equation.
On the mechanism of multiscroll chaos generation in coupled non-oscillatory rayleigh-duffing oscillators
Authors: Balamurali Ramakrishnan , Telem Adélaïde Nicole Kengnou , Kengne Jacques , Rajagopal Karthikeyan , Hermann-Dior Mekak-egong 
Published: September 2022

Abstract
We investigate the dynamics of a pair of coupled non oscillatory Rayleigh-Duffing oscillators (RDOs here after). The RDO serves as a model for a class of nonlinear oscillators including microwave Gunn oscillators [Guin et al Comm. in Nonlinear Sci. Numerical Simulat, 2017]. Here, the coupling between the two oscillators is obtained by superimposing to each one’s amplitude a perturbation proportional to the other one. We demonstrate that the coupling induces more equilibrium points and results in extremely complex nonlinear behaviors including multistability (up to six coexisting attractors), multiple Hopf bifurcations, multi-scroll chaos, and coexisting bifurcation trees. These phenomena are studied in detail by utilizing one-parametric bifurcation plots, bi-parametric Lyapunov exponent diagrams, phase space trajectory plots, and basins of attraction as well. Experimental results captured from an Arduino microcontroller-based realization of the coupled RDOs are included to support the observations made through numerical analysis. We would like to point out that the coupling scheme followed in this work may stimulate the research on multiscroll chaos generation based on coupled nonlinear oscillators.
A new insight into defective one-dimensional dielectric-graphene photonic crystals
Authors: Saleki Ziba 
Published: September 2022

Abstract
The transmission properties of a defective one-dimensional dielectric-graphene stack are investigated by employing the transfer matrix method in the THz frequency range. The structure containing silicon dioxide as a defect layer consists of polyethylene and graphene nano-layers arranged in the pattern of (AG)
N

D(GA)
M
. The effect of the iteration numbers on the defect mode properties is studied to optimize the transmission peak. Analyzing structure with optimal iteration numbers indicates that the full width of half maximum is highly decreased. Subsequently, the quality factor is substantially enhanced as the thickness of the defect layer increases. It is also discussed how several parameters such as the incident angle, the state of polarization, and the permittivity of the layers affect the defect mode’s behavior. Our findings show that only in the case of ϵ

A
< 3 one can obtain the localized defect mode at frequencies between 1 and 2 THz. We also study the transmission characteristics with a focus on the variation of permittivity of the constituent layers. By increasing the incident angle, the peak intensity for the TM-polarized wave grows slightly, while it decreases for the TE-polarized wave. However, these changes are more striking in the case of ϵ

A
= 1 as compared to those in the case of ϵ

A
= 2.25. Photonic devices utilizing such defective structures may find application in filters and sensors operating in the THz range.
Evaluation of neutron spectra and different fluences inside a radiotherapy room with a modified simple geometry of LINAC head
Authors: As-habi Mahdieh , Khabaz Rahim , Khoshbin-khoshnazar Alireza 
Published: September 2022

Abstract
The photoneutron spectra and ambient dose equivalent were determined in a radiotherapy room with a 15 MV linear accelerator using Monte Carlo simulation. A modified simple geometry of the accelerator’s head was modeled by different simulations. Then, by putting it in a radiotherapy room, the photoneutron spectra at different distances from the isocenter and in the maze were determined. The source term spectrum is due to evaporation, and knock-on neutrons. In the presence of the walls, as the distance from isocenter is increased, evaporation and knock-on neutrons are reduced; however, epithermal and thermal neutrons tend to remain constant. The walls also play an influential role in increasing the photoneutron ambient dose equivalent. Subsequently, by placing this modified accelerator’s head in the radiotherapy room, the coefficients of scattered and thermal fluences were also estimated.
Multi-field cold and warm inflation and the de Sitter swampland conjectures
Authors: Bertolami Orfeu , M. Sá Paulo 
Published: September 2022

Abstract
We discuss under which conditions multi-field cold and warm
inflationary models with canonical kinetic energy terms are compatible
with the swampland conjectures about the emergence of de Sitter solutions
in string theory. We find that under quite general conditions the slow-roll
conditions for multi-field cold inflation are at odds with the swampland
conjectures for an arbitrary number of scalar fields driving inflation.
However, slow-roll conditions can be reconciled with the swampland conjectures
in the strong dissipative regime of warm inflation.
A new observable for cosmic shear
Authors: Francfort Jérémie , Durrer Ruth , Cusin Giulia 
Published: September 2022

Abstract
In this paper we introduce a new observable to measure cosmic shear. We show that if we can measure with good accuracy both the orientation of a galaxy and the polarisation direction of its radio emission, the angle between them is sensitive to the foreground cosmic shear. Even if the signal-to-noise ratio for a single measurement is expected to be rather small, the fact that all galaxies in a given pixel are subject to the same shear can be used to overcome the noise. An additional advantage of this observable is that the signal is not plagued by intrinsic alignment. We estimate the SNR for the shear correlation functions ζ±(μ,z
1, z
2) measured in this way with the future SKA II survey.
Microstructure of charged AdS black hole with minimal length effects*
Authors: Bai Ningchen , He Aoyun , Tao Jun 
Published: September 2022

Abstract
In this work, the microstructure of charged AdS black holes under minimal length effects is investigated. We study the thermodynamics of black holes in the extended phase space, where the cosmological constant is regarded as the thermodynamic pressure. The modified Hawking temperature and phase transition are obtained based on the generalized uncertainty principle (GUP). Then, using thermodynamic geometry, the microstructure of black holes can be determined by the ratio of the GUP parameter to charge. For a small ratio, the black hole exhibits the typical RN-AdS microstructure with van der Waals phase transition and repulsive/attractive interactions. As the ratio increases, the reentrant phase transition is observed, and both the repulsion-attraction coexisted and the attraction dominated black holes are noted. For a large ratio, the black hole behaves like a Schwarzchild-AdS black hole in which neither phase transition nor repulsive interaction are observed. These results suggest that the GUP effect will reduce the repulsive interaction presented by the charged AdS black hole.
River Water Quality Prediction and index classification using Machine Learning
Authors: Nair Jitha P , Vijaya M S 
Published: September 2022

Abstract
Various pollutants have had a substantial impact on the quality of water in recent years. The quality of water directly impacts human health and the environment. The water quality index (WQI) is an indicator of effective water management. Water quality modelling and prediction have become essential in the fight against water pollution. The research aims to build an efficient prediction model for river water quality and to categorize the index value according to the water quality standards. The data has been collected from eleven sampling stations located in various locations across the Bhavani River, which flows through Kerala and Tamilnadu. The water quality index is determined by 27different parameters affecting water quality like dissolved oxygen, temperature, pH, alkalinity, hardness, chloride, coliform, etc. Data normalization and feature selection are done to construct the dataset to develop machine learning models. Machine learning algorithms such as linear regression, MLP regressor, support vector regressor and random forest has been employed to build a water quality prediction model. Support vector machines (SVM), naïve bayes, decision trees, MLP classifiers, have been used to develop a classification model for classifying water quality index. The experimental results revealed that the MLP regressor efficiently predicts the water Quality index with root mean squared error as 2.432, MLP classifier classifies the water quality index with 81% accuracy. The developed models show promising output concerning water quality index prediction and classification.
Implementation of Automatic Temperature Control for Confined Area
Authors: Samath Manitha , Kamath Surekha , Nayak Varsha , Tendulkar Deeksha 
Published: September 2022

Abstract
The main aim of this paper is to develop a low cost system which keeps the room temperature at a desired temperature throughout without any human intervention irrespective of any changes in the external environment. The heating system is switched on if the surrounding temperature is less than the desired temperature or the cooling system is switched as the temperature sensed by the sensor goes above the surrounding temperature. Nevertheless, these kind of systems still needs some kind of improvement for being a better alternative.