bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tests and calibrations of stellar models with two triply eclipsing triple systems
Authors: Valle G. , Dell’Omodarme M. , Prada Moroni P. G. , Degl’Innocenti S. 
Published: February 2025

Aims. We investigated the possibility of using two recently characterised triply eclipsing triple systems to constrain stellar model parameters. We specifically focused on evaluating the influence of the underlying astrophysical assumptions employed in the characterisation of the system to fix absolute values of the radii, effective temperatures, and metallicity.
Methods. We used dense grids of pre-computed stellar models to fit the data for the triply eclipsing systems with a modified version of the SCEPtER pipeline
Results. We achieve an excellent agreement with observational data for TIC 650024463, which comprises three low-mass main-sequence (MS) stars. We find it has an age of 9.0+1.4-1.1
Gyr and a multimodal posterior density. Characterising TIC 323486857 proved more challenging. This system comprises two intermediate-mass MS stars and a slightly more massive tertiary in the red giant branch phase. For this last system we tested alternative scenarios for convective core overshooting. When all stars were assumed to have the same overshooting efficiency, significant discrepancies arose with the observed data for the tertiary star. This discrepancy may arise from the different assumptions regarding overshooting efficiency made for the observational characterisation of the system, in which an increasing overshooting efficiency with stellar mass was adopted. By allowing independent overshooting efficiencies for all stars, we recovered a solution close to that adopted in the system observational characterisation. Encouragingly, despite the relevant differences between the adopted stellar models and those used for the observational characterisation, we found a system age of 2.33+0.18-0.16
Gyr in all the tested scenarios, and this age is in agreement with independent determinations.
Management of Recurrent Osteoid Osteoma: Case Report
Authors: Das Trupthi , Uthappa M.C. , Devathu Ravikanth 
Published: February 2025

AbstractOsteoid osteoma is a benign bone tumor accounting for 10% of all benign bone tumors and 2 to 3% of all primary bone tumors. Pain is the predominant presenting symptom demanding medical attention. Radiofrequency ablation has become the standard line of treatment due to its high clinical success rate. Although it is highly effective, the recurrence rate is estimated to be in the range of 7 to 16.3%, with younger individuals having higher recurrence rates. We report a unique case of recurrent osteoid osteoma with a metachronous lesion in a female child for which radiofrequency ablation of both the lesions was performed, which proved to be effective.
A corpus-based cognitive linguistic analysis of taste terms
Authors: Zhang Ting , Lahlou Hicham , Azam Yasir 
Published: February 2025

Abstract
From a cognitive linguistic perspective, this article delves into the polysemy between the English term
sour and its Chinese counterpart suan. The research aims to achieve two key objectives: (1)
To explore the similarities and differences in the polysemy of sour in English and suan in
Chinese; (2) To identify the cognitive mechanisms that motivate the semantic expansion of sour in English and
suan in Chinese. To this end, 《汉语大词典》 (the Great Chinese Dictionary), The Oxford English Dictionary (OED), the British National Corpus
(BNC), and the Centre for Chinese Linguistics (CCL) Chinese-English Parallel Corpus were used. The dictionaries are utilized to
explore the polysemy of sour and suan, while the BNC and CCL Chinese-English Parallel Corpus are
employed to investigate the cognitive mechanisms underlying the semantic extensions of the selected terms. Theoretically, this
article draws upon the conceptual metaphor and metonymy theory proposed by Lakoff and Johnson. The findings reveal significant
semantic overlap between sour in English and suan in Chinese, yet notable distinctions remain.
This study has implications for vocabulary teaching as well as cross-linguistic and cross-cultural communication.
Field-induced spin-state transition, critical exponents and non-equilibrium-memory effects in semi-spin-glass perovskite (LaNd)(CoMn)O3
Authors: Tiwari P , Atkar S A , Sharma P , Datta A , Singha A D , Roy-Chowdhury M , Sarkar T , Thota S 
Published: February 2025

Abstract
Efficient control of the structural, magnetic and electrical properties of Rare-earth (RE) based perovskites (ABO3) is crucial for advanced spintronic applications and can be achieved by means of site-specific substitution. In this comprehensive study, we explore the role of (Nd)A-site and (Mn)B-site co-substitution on the physical properties of pristine LaCoO3 perovskite. The resulting compound La0.5Nd0.5Co0.5Mn0.5O3 (LNCMO) with an orthorhombic (Pbnm) crystal structure (a =5.4811(4) Å, b = 5.5074(4) Å and c =7.7491(5) Å) exhibits a significantly reduced Jahn-Teller distortion (JT) compared to pristine LaCoO3 with a monoclinic (I2/a) structure. The ac-magnetic susceptibility χ(T, f, Hdc
) measurements and wait time dependence of the isothermal magnetization M(t) provide clear evidence for the re-entrant spin-glass-like behavior with freezing temperature TSG =133 K below the ferrimagnetic Curie temperature (TFiM
∼137.4 K). Additionally, the asymmetric response of magnetic relaxation in the system to positive and negative temperature cycling well below the freezing temperature has been explained by means of the hierarchical model. Furthermore, a giant coercivity (HC
∼14 kOe) and remanence (MR
∼ 6440 emu mol−1 ) with weak loop-asymmetry indicates the presence of large magnetic anisotropy in LNCMO, evidenced by a high magneto-crystalline anisotropy field (HK ∼80 kOe) and anisotropy constant (K1
∼ 1.45 × 107 erg cm−3). The unique electronic structure of trivalent Nd (5f
3) and mixed valent Mn (3d
4/3d
3) with spin-orbit coupling energies 4 eV and 11.43 eV/10.51 eV, respectively and competing exchange interaction (∼0.67 meV) between Mn and Co cations in different pathways results in enhanced magnetic-order parameters. Moreover, the co-substitution results to a pseudo-first order like state close to the spin-state transition H* of Co (S = 0 → 2) which has been verified by the modified Arrott plot analysis yielding critical exponents β = 0.67, γ = 1.44 and δ = 3.13. A field-induced metamagnetic transition HT emerges in the range 30 K ⩽T⩽ 130 K which has been mapped along with other parameters resulting in a H-T phase diagram which clearly distinguishes various magnetic phases and sharp crossover between the different states providing a clear and vivid picture of the overall magnetic structure of LNCMO.
Hydrogen adsorption and properties of goldene: a first-principles study
Authors: Sheremetyeva Natalya , Meunier Vincent 
Published: February 2025

Abstract
Goldene, a single-atom Au monolayer with a hexagonal lattice in the P6/mmm space group, exhibits interesting hyrdrogen absorption properties, as revealed using density functional theory calculations. This study focuses on H-adsorbed goldene at different coverage ratios, and provides insights into the energetic and electronic properties of this system, distinguishing it from the well-studied pristine goldene. Hydrogen adsorption on goldene, while energetically comparable to bulk gold, shows a slight reduction in energetic favorability and introduces specific scanning tunneling microscopy images, reported here for the first time. Raman spectra of H-adsorbed goldene at a 1/9 coverage ratio are also first reported here, along with a vibrational mode analysis, highlighting distinct atomic displacement patterns. Finally, for completeness, previously reported results on the dynamical and mechanical stability of pristine goldene are reported, with a special emphasis on the quadratic flexural mode characteristic of 2D materials. New insights into the thermodynamic properties of goldene compared to bulk gold are also discussed. Although bulk gold remains thermodynamically more stable at all temperatures, the vibrational contributions to the Helmholtz free energy favor goldene above 175 K, narrowing the stability gap with temperature. Overall, this study validates goldene’s robustness and expands its potential for experimental and theoretical exploration in the context of hydrogen adsorption and functionalized 2D materials more broadly.
Influence of bad contact electrode on electrical impedance tomography data quality: a perspective of clinical application
Authors: He Sini , Yuan Jia Li , Dai Meng , Zhao Zhanqi , Peng Peng , Liu Tian , Jiang Junhong , Yang Lin , Wen Chuanxue 
Published: February 2025

Abstract
This study aimed to evaluate the effect of bad contact electrodes on the quality of electrical impedance tomography (EIT) data and the reliability of lung ventilation imaging. Thirty healthy volunteers were examined using EIT under normal relaxed tidal breathing in a supine position. The five electrode–skin contact conditions (C1–C5) for electrode No. 2 were defined by systematically varying the contact area. Specifically, C1 represented full contact, C2 covered 25% of the electrode surface, C3 covered 50%, C4 covered 75%, and C5 involved completely covering the electrode with an insulating material to simulate high impedance. Three scenarios (S
A
, S
B
, S
C
) were established: S
A
maintained impedance stability, S
B
simulated variations in contact, and S
C
introduced dynamic changes in impedance during a single breath cycle. EIT parameter-based deviation scores were used to assess spatial and temporal ventilation distributions across varying electrode contact conditions and the Bland–Altman plot was used to assess image quality. Deviation scores in S
A
consistently hovered around 0.0, except for C5, which scored 8.5 ± 4.0. In contrast, S
B
displayed significantly higher deviation scores, with C2 recording the lowest at 4.0 ± 4.0. The absolute differences in tidal impedance variation between S
A
and S
B
remained minimal across all conditions. However, significant differences emerged between S
A
and S
C
from C2 onwards, where a notable shift in left–right lung ventilation distribution was observed. Changes in electrode contact impedance significantly impact the quality of EIT data. While absolute impedance within a stable range has minimal effect, fluctuations within a breath cycle compromise image quality.
Novel induction plate configuration for permanent magnet electrodynamic wheel systems based on electromagnetic force optimization and its implementation on HTS system
Authors: Chen Yihao , Liang Le , Lin Wangxuan , Deng Zigang 
Published: February 2025

Abstract
Permanent magnet electrodynamic wheel (PMEDW) has a broad application prospect because of its unique advantage of integrating levitation and propulsion functions. Considering the cost of the mentioned materials, a low-cost stacked plate design for the induction plate in the PMEDW system is proposed and tested, to improve the electromagnetic force in this paper. The feasibility of the proposed structure is verified through theoretical analysis, finite element simulation analysis, and experimental testing. Firstly, the basic structure and principle of the proposed stacked plate are analyzed. Then, a preliminary simulation analysis is carried out to calculate the electromagnetic force, power loss, and efficiency. The stacked structure has high static levitation efficiency and driving efficiency and has low power loss. Subsequently, experimental tests were conducted and the results showed that the levitation and propulsion forces were effectively increased by 12.99% and 4.8%, respectively. Finally, the stacked plate is verified to have good propulsion capability by a high-speed test bed. This work can significantly enhance the levitation-propulsion features of the PMEDW system. In addition, because the PMEDW has the propulsion ability to replace linear motors, it can be combined with the HTS Maglev train, which greatly reduces the cost and energy consumption.
CTAB-assisted hydrothermal synthesis of micro-sheets like Ni-BDC electrode material for supercapacitor application
Authors: Khokhar Shiwani , Chand Prakash , Anand Hardeep 
Published: February 2025

Abstract
An innovative CTAB-assisted technique was used to fabricate Ni-BDC through the solvothermal method. X-ray diffraction and FESEM imaging unveiled the crystalline structure and microsheet-like morphology of Ni-BDC. The FTIR technique and BET isotherm analysis were employed to delve deeper into the molecular interactions and surface properties of the material. Electrochemical analysis in a 2M KOH alkaline electrolyte solution revealed that, at 3 A/g, Ni-BDC demonstrates an optimum specific capacitance of 800 F/g. The synthesized MOF demonstrates impressive capacitance retention of 69.2% after enduring 1200 charge–discharge cycles at a rate of 15 A/g, highlighting its robust performance and long-term stability in energy storage applications. These electrochemical findings suggest that the micro-sheet-like Ni-BDC electrode holds considerable promise for applications in energy storage field.
Numerical Study of heat transfer performance of geothermal pile-foundation heat exchanger in ground source heat pump system
Authors: Bao Xiangzhong , Zhang Hezhi , Guo Shuai , Chen Zhenqian 
Published: February 2025

Abstract
To evaluate the thermal conductivity performance of geothermal pile-based heat transfer units utilized within ground source heat pump (GCHP) frameworks, we developed physical models encompassing both solitary pile-based heat transfer devices and assemblies of such units. A thorough examination was conducted into the heat exchange mechanics and efficacy of these devices, covering both refrigerating and warming operational modes. For the purpose of simulating the heat transfer processes within a 3×3 array of energy piles, a real-world scenario involving an office building situated in Nanjing was adopted. Utilizing DeST software, we calculated the annual dynamic building load, which spans the cooling period, the heating period, and the two intervening transition periods. Following a simulated ten-year operational lifespan, it was noted that the average soil temperature exhibited an increase under conditions of non-equilibrium. The outcomes of this study closely mirror real-world conditions and can be harnessed as a theoretical foundation for the design and deployment of pile-foundation heat exchangers within GSHP systems.
Application of the initial power of the P-Wave method to determine the P-Wave arrival time for earthquake early warning in the Western Java Region
Authors: Kadnan  , Djuhana Dede , Handoko Djati , Pramono Sigit , Florida Riama Nelly 
Published: February 2025

Abstract
Earthquake early warning systems are very important in mitigating more severe damage from earthquake events. Therefore, the analysis of earthquake signals is essential to obtain precise and accurate timing from earthquake stations in Indonesia. In this work, we have systematically investigated the time arrival of the P-wave from the earthquake signal accelerometer in the West Java region, which measured from 2009 to 2023 with magnitudes varied from M 4.0-to M 7.3. We have carefully filtered the raw data by using a Butterworth highpass filter with a cut-off frequency of 0.075 Hz to produce good data before analyzing the time of arrival of the signal. Then, the Initial Power of the P-wave (IPP) method was applied to the filtered signal data with various long-time and short-time window widths, including various SNRs. Interestingly, the results showed the average deviation of IPP was around 0.053 seconds compared with the conventional method, such as Short Time/Long Time Average (STA/LTA) was around 0.328 seconds. This means the IPP method was better accuracy than the conventional method and its potential for analysing signal in earthquake early warning system.
On the propagation of atmospheric Lamb waves induced by the 2022 Hunga Tonga volcanic eruption
Authors: Realita A , Manggartika N M A S , Prastowo T , Fahmi M N , Hanifa N K , Madlazim  
Published: February 2025

Abstract
The powerful blast from the Hunga Tonga submarine volcano in the southern Pacific during violent eruption on 15 January 2022 radiated shock waves into the atmosphere, generating air pressure pulses that circled the Earth. The dominant part of the pressure pulses was known as a Lamb wave, with which we were concerned. The objectives of this study were twofold herein. We first analysed the large-scale propagating oscillations and secondly, determined the speed of the Lamb wave. The data were numerical barometric pressures recorded by weather stations of Automated Surface Observing Systems (ASOS), constituting air pressure readings from various locations on Earth, across which a Lamb wave travelled. The pressure records were transformed into atmospheric signatures with different speeds and frequencies, indicating the presence of Lamb waves. The readings utilised for the first and second pulses at different arrival times, where the second arrival corresponded to the Lamb wave from the antipodal point. Using these pulses, we estimated the first and return Lamb wave speeds to be ~324 m/s and ~320 m/s, respectively, within the range of the Lamb wave speed reported by previous studies. The nearly equal speeds of the first incoming and return waves suggest that energy dissipation is relatively small with increasing travel distance. For Indonesia, the result is of significance to better preparedness in response to tsunami potential by possible sources other than earthquakes of tectonic origin, such as volcano-atmospheric processes.
Application of non-destructive test method with ultrasonic for testing of flexural strength (Modulus of Rupture) on ceramic tile
Authors: Nugroho Wijayanto Agung , Bayumurthy Rashonda Raafi’u , Praptana  , Wahyudi Kristanto , Pribadi Bangun 
Published: February 2025

Abstract
One of the tests carried out to determine the quality of ceramic tiles is the flexural strength test (Modulus of Rupture, MOR). So far, the flexural strength test method for ceramic tiles is usually carried out by destructive tests that break the ceramic tiles until they break, which takes a long time and generates ceramic waste. Currently, the use of the non-destructive (NDT) method in the ceramics quality test is growing. The NDT method is a method of testing the quality of solid objects without damaging the object. This study aims to estimate ceramic tiles flexural strength (MOR) without damaging them. The method in this research uses ultrasonic testing to find the longitudinal velocity and transverse velocity of sound in ceramic so that it can be used to calculate the value of Young’s modulus (E) of ceramic tiles. The value of flexural strength (MOR) was obtained from testing the fracture strength of ceramic tiles. After the values of Young’s modulus (E) and flexural strength (MOR) were obtained, a linear regression test was performed to obtain the equation of the relationship between Young’s modulus (E) and flexural strength (MOR). Obtained results or formulas for flexural strength (MOR) through linear regression test, namely flexural strength (MOR) = 0.0068E - 182.69. The flexural strength test (MOR) validation results using the linear regression equation obtained an average flexural strength (MOR) value with the NDT method of 56.65 N/mm2 with an average error of 2.3%. So, it can be concluded that Young’s modulus of ceramic tiles was successfully determined using non-destructive ultrasonic testing by measuring its longitudinal velocity and transverse velocity to measure the flexural strength (MOR) value.
Analysis of the influence of perforation angle to improve the performance of acoustic perforated panels
Authors: Suyatno  , Al Mahdani Mokhammad Mehdi , Prajitno Gontjang 
Published: February 2025

Abstract
Passive Noise Control (PNC) is the most commonly used method due to its ease and wide range of application. However, for noise that dominates at certain frequencies, it is necessary to modify PNC materials to achieve noise reduction at the desired frequency. One such modification is the use of perforated materials. With the correct configuration, it is possible to reduce noise at the desired (tunable) frequency. However, most perforations available in the market primarily focus on the perforation percentage. In fact, another factor that affects the performance of perforated materials is the length of the perforation neck. For relatively thin materials, the way to increase the length of the perforation neck is by drilling at a specific angle. Therefore, in this study, the design and simulation of perforated panels with hole angles of 0°, 10°,15°, and 20° were conducted. The design is a circular panel with a diameter of 100 mm and air gap of 10 mm. The parameters simulated are Sound Absorption (α) and particle velocity. Results show that the resonant frequency lower with the increasing perforation angle. Then sound absorption coefficient with 20° angle perforation is higher than the other. Furthermore, it can increase the sound absorption in lower frequency.
Effect of carbon from Siwalan shell as a microwave absorbing material at X-Band Frequency
Authors: Abdullah Mohammad , Nuraini Umi , Hamid Abdul , Taufiqqurrachman  , Budi Santiko Arief 
Published: February 2025

Abstract
Studies on natural carbon derived from Siwalan coconut shells for use as radar-absorbing materials have been effectively carried out. Shells of Siwalan coconuts are burned and refined to a size of 200 mesh to create the carbon material. According to the sample’s exothermic-endothermic reaction as determined by DTA-TGA testing, the calcination temperature is 500°C for two hours. The crystal structure and carbon bonds are determined using XRD and FTIR analysis. When the carbon material is combined with the ship paint and applied to ASTM 36 steel, the VNA test yields the material’s absorption value. There are two methods for applying the coating: single-layer and multilayer. Samples A, B, and C of the single-layer coating have a carbon weight composition of 10%, 20%, and 30%, respectively, and a paint thickness of 3 mm. A multilayer coating consists of three layers, each with a thickness of 1 mm and composition changes of 10%, 20%, and 30%. Samples A, B, C, and D had reflection loss values in the X-band range of −38.9 dB at 10.28 GHz, −17.5 dB at 10.44 GHz, −21.5 dB at 10.68 GHz, and −23.3 dB at 910.2 GHz. It demonstrates how the proportion of carbon influences the material’s ability to absorb radar waves and how a multilayer coating can optimize that number.
Enhancing resolution of raster-scan photoacoustic imaging using Enhanced Super-Resolution Generative Adversarial Networks (ESRGAN)
Authors: Rifai Rochan , Putra Utama Handi , Astina Tasmara Fikhri , Mitrayana  , Widyaningrum Rini , Agung Rakhmadi Frida , Sa’adah Nurul , Walhikmah Rima 
Published: February 2025

Abstract
Raster-scan photoacoustic imaging often faces challenges with low resolution and extended acquisition times, limiting its effectiveness in biomedical applications. Traditional interpolation methods, such as nearest-neighbor, Bilinear, and Bicubic, do not fully address these issues, resulting in residual blurring and artifacts. This study investigates the use of Enhanced Super-Resolution Generative Adversarial Networks (ESRGAN) to enhance the resolution of raster-scan photoacoustic images. We compare ESRGAN with conventional interpolation techniques to assess improvements in image quality. Our analysis, based on metrics including Full Width at Half Maximum (FWHM), Laplacian Variance, Edge Density, and Spectral Energy, shows that ESRGAN outperforms traditional methods. ESRGAN achieves a lower FWHM, indicating finer detail and sharpness, while conventional methods, which are nearest-neighbor, bilinear, and bicubic, exhibit higher FWHM values and more blurring. Visual inspections confirm that ESRGAN images are significantly clearer and more detailed compared to those produced by traditional methods. These findings highlight ESRGAN’s effectiveness in enhancing the image quality of raster-scan photoacoustic imaging.