bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Multi-parameter Test of Gravitational Wave Dispersion with Principal Component Analysis
Authors: Ma Zhi-Chu , Niu Rui , Zhao Wen 
Published: April 2024

Abstract
In this work, we consider a conventional test of gravitational wave (GW) propagation which is based on the phenomenological parameterized dispersion relation to describe potential departures from General Relativity (GR) along the propagation of GWs. But different from tests conventionally performed previously, we vary multiple deformation coefficients simultaneously and employ the principal component analysis (PCA) method to remedy the strong degeneracy among deformation coefficients and obtain informative posteriors. The dominant PCA components can be better measured and constrained, and thus are expected to be more sensitive to potential departures from the waveform model. Using this method we analyze ten selected events and get the result that the combined posteriors of the dominant PCA parameters are consistent with GR within 99.7% credible intervals. The standard deviation of the first dominant PCA parameter is three times smaller than that of the original dispersion parameter of the leading order. However, the multi-parameter test with PCA is more sensitive to not only potential deviations from GR but also systematic errors of waveform models. The difference in results obtained by using different waveform templates hints that the demands of waveform accuracy are higher to perform the multi-parameter test with PCA. Whereas, it cannot be strictly proven that the deviation is indeed and only induced by systematic errors. It requires more thorough research in the future to exclude other possible reasons in parameter estimation and data processing.
Iterative addition of parallel non-local effects to full wave ICRF finite element models in axisymmetric tokamak plasmas
Authors: Zaar B. , Johnson T. , Bilato R. , Vallejos P. 
Published: April 2024

Abstract
The current response of a hot magnetized plasma to a radio-frequency wave is non-local, turning the electromagnetic wave equation into an integro-differential equation. Non-local physics gives rise to wave physics and absorption processes not observed in local media. Furthermore, non-local physics alters wave propagation and absorption properties of the plasma. In this work, an iterative method that accounts for parallel non-local effects in 2D axisymmetric tokamak plasmas is developed, implemented, and verified. The iterative method is based on the finite element method and Fourier decomposition, with the advantage that this numerical scheme can describe non-local effects while using a high-fidelity antenna and wall representation, as well as limiting memory usage. The proposed method is implemented in the existing full wave solver FEMIC and applied to a minority heating scenario in ITER to quantify how parallel non-local physics affect wave propagation and dissipation in the ion cyclotron range of frequencies (ICRF). The effects are then compared to a reduced local plane wave model, both verifying the physics implemented in the model, as well as estimating how well a local plane wave approximation performs in scenarios with high single pass damping. Finally, the new version of FEMIC is benchmarked against the ICRF code TORIC.
Entropic relations for indistinguishable quantum particles
Authors: Lemm Marius 
Published: April 2024

Abstract
The von Neumann entropy of a k-body-reduced density matrix γ

k
quantifies the entanglement between k quantum particles and the remaining ones. In this paper, we rigorously prove general properties of this entanglement entropy as a function of k; it is concave for all

1
⩽
k
⩽
N

and non-decreasing until the midpoint

k
⩽
⌊

N

/

2

⌋

. The results hold for indistinguishable quantum particles and are independent of the statistics.
Analysis of 70 - 300 MeV Proton Energy on Homogeneous and Inhomogeneous Phantoms using PHITS Monte Carlo Package
Authors: Fitria A , Sumaryada T , Yani S 
Published: April 2024

Abstract
Proton therapy is a radiotherapy technique using proton particles for reach the target in a straight line and minimize damage to the surrounding tissue. Proton particles that penetrate the body will be deposited at a certain depth and produce a Bragg peak. This study aims to determine the percentage depth dose (PDD) produced by proton radiation in homogeneous and inhomogeneous phantoms. Homogeneous phantom contains water, bone, or lungs material, while inhomogeneous phantom consists of several materials, namely water, bone, and lungs. The interaction of phantom and proton radiation was simulated using the Monte Carlo-based PHITS software. The result indicate that the material density and the proton energy were influencing the dept of Bragg peak. For energy 70 MeV, the Bragg peak position for the water phantom, bone phantom, and lung phantom were 3.80 cm, 2.60 cm, and 15.8 cm. The increase of proton energy causes a deeper Bragg peak position.
A Self-Construction of Automatic Crescent Detection Using Haar-Cascade Classifier and Support Vector Machine
Authors: Muztaba R , Malasan H L , Djamal M 
Published: April 2024

Abstract
Developing an automatic detection method based on computer vision applied to the moon crescent is an innovative concept that can be further developed. This program will be highly useful for observers during the Moon crescent observation because it can help them recognize objects quickly. This paper proposes an automatic crescent moon detection method based on visual mechanisms and training using the Cascade Classifier algorithm. The stages of this method consist of building Haar structural features, extracting feature samples using Haar structural features, and training 981 images consisting of 654 positive images and 327 negative images using the Cascade Classifier. The results show that the crescent moon detection performance is quite good at detecting the crescent Moon. The developed program can recognize crescent moon objects, although it is limited to relatively large lunar illumination in the range of greater than 10% to less than 50%. Furthermore, our program can be applied in real-time situations.
Resistivity Distribution of Lembang Fault Based on Magnetotelluric Data
Authors: Nurhasan  , Naufal Muhammad Risyad , Srigutomo Wahyu , Mustopa Enjang Jaenal , Diba Dieno , Ogawa Yasuo , Nada Qhathrin , Pratama Andika , Rusdiana Randi 
Published: April 2024

Abstract
The Lembang fault located 15 Km north of Bandung City is one of the active faults situated on Java Island, Indonesia. The Lembang fault is an extension of the Cimandiri fault that can be one of the potential sources of earthquakes in Indonesia. In this study, the Magnetotelluric method was used to model the subsurface resistivity at the Lembang Fault area. The data acquisition was conducted in 8 points of measurement forming a line perpendicular to the Lembang Fault. The analysis was performed using 1D inversion of apparent resistivity and phase with the frequency range of 1 Hz to 320 Hz. The contrast apparent resistivity has observed in two sites around the fault. The inversion results show resistivity contrasts around the LMB02 point that is suspected to be the Lembang Fault. These results are consistent with geological data in the Lembang Fault area. Aside from the LMB02 point, there are also resistivity contrasts around the LMB05 point. However, from a geological perspective, it is not yet known whether the area around the LMB05 point represents a fault.
Physical Properties of Varied Composition of Peanut Shell and Palm Oil Shell’s Briquettes
Authors: Dalimunthe Yusraida Khairani , Widayani  , Aditya Irfan Dwi 
Published: April 2024

Abstract
This research aims to determine the physical properties of briquettes made from peanut shell (KKT) and palm oil shell (CKS) waste. The manufacturing process is carried out using a briquette press with a pressure of 70 N/m2, and each KKT and CKS is measured at 100 mesh. Two grams of starch adhesive and 15 ml of water are used in the process. This research method involves varying the quantities of KKT and CKS with the following ratios: S1(18:0), S2(16:2), S3(14:4), S4(12:6), S5(10:8), S6(8:10), S7(6:12), S8(4:14), S9(2:16), S10(0:18). The results of this research show that the lowest density of briquettes, 708.38 kg/m3, was produced by sample S6, while the highest density, 876.91 kg/m3, was produced by sample S3. The lowest elastic modulus of briquettes, 7 MPa, was recorded for sample S6, and the highest elastic modulus, 60 MPa, was observed for sample S10. Similarly, the lowest ultimate strength of briquettes, 1.35 MPa, was found in sample S6, while the highest ultimate strength, 6.03 MPa, was achieved in sample S10.
Design of Liquid Refill Station for Dish Soap Product Based on Internet of Things
Authors: Nurrahmawati Aminah , Aminah Nina Siti , Kumar Rahul 
Published: April 2024

Abstract
The abundance of plastic waste from liquid products such as dish soap, shampoo, mineral water, etc., has been a big problem so far. Therefore, a liquid refill station for liquid products has been designed to reduce plastic waste, and in this research, we used dish soap as liquid product. The tool works equipped with two pumps and a water flow sensor. So that customers can choose the volume and type of dish soap they want to buy from the two available brands. All purchase data in the form of customer ID, the brand of dish soap purchased, the volume of dish soap bought, and the date of the purchase were saved in the database. The residual volume in the tank is monitored and displayed on the Grafana dashboard. The timeout of dish soap volume in the tank is predicted using linear regression with the independent variable in the form of time (days) of purchase and the dependent variable in the form of the remaining dish soap in the tank. The prediction uses training data taken from the remaining volume data in the tank when it is first filled until it is first used up. The training data found that the coefficient of determination R2= 0.99 for the two brands.
Pedestrian Evacuation Modeling Using Agent-Based Model and Social-Force Model
Authors: Firdausyi Alya Mutiara , Dini Septian Ulan , Nurafni Sevi , Viridi Sparisoma 
Published: April 2024

Abstract
Good emergency management is essential in planning events that have the potential to endanger lives, one of which is preparing for an effective and efficient evacuation. Evacuation evaluation using a fire drill is not optimal because it does not describe the emergency. Therefore, agent-based modeling is carried out to see interactions between individuals and their environment during evacuation. ABM (Agent-Based Modeling) is combined with a social-force model, which is the source of the agent’s movement style toward goals and avoiding obstacles. The simulation is carried out using NetLogo 6.3.0 software, which can represent agents spread across a 2-dimensional room with variations in room size, exits, and the number of agents involved. Several characteristics are given to the agent to cause heterogeneity, including age categories in the form of children, adults, people over 70, and people with disabilities, which will determine the agent’s walking speed. The measurements observed were the average duration of evacuation and the average speed of agents. From the simulation results, it can be concluded that using the social force model will lead to the emergence of collective behavior, such as clogging and arching in agents. The exact population density in different room areas will affect the evacuation duration, whereas a larger room area will cause the agent to travel a greater distance to the exit. An increase in evacuation duration will accelerate rapidly at low densities and slow down as density increases.
Dynamics of settling disks in a cross-flow
Authors: Rizqie Arbie M. , An’umillah Firaas , Mahardika Harry 
Published: April 2024

Abstract
Physical properties of rocks depend strongly on its grain packing which is determined by the natural process involving fluid-structure interaction during deposition. Here, we address the dynamics of settling solids with different sizes in a cross-flow numerically. This is an important aspect in rock formation process. Computational fluid-structure interaction usually involves the use of body-conformed grid. For the case of solid moving in a viscous fluid, the body-conformed grid has to be reconstructed in every time iteration which can be time consuming. The so-called Immersed Boundary method can be used to eliminate this grid reconstruction process. In this study, we use the couple of Immersed Boundary and Lattice Boltzmann Method (usually termed as IBLBM). In lattice Boltzmann, one does not require solving Poisson equation for pressure and a computation of intermediate field as in the usual fractional step procedure since velocity and pressure field can be obtained from the locally solved distribution function. These advantages make IBLBM can be easily employed. In this study, we perform simulations on the dynamics of a cluster of disks with two different values of diameter in a cross-flow. We compute the velocity distribution of the disks to study the sedimentation dynamics and we compare the results with a sedimentation process in a quiescent fluid. For the solid-fluid density ratio of 5 and incoming flow Reynolds number of 12, the velocity distribution is close to the normal distribution as also observed in the case of sedimentation in quiescent fluid.
Numerical Simulation of the Effect of Molten Salt Channel Number on Temperature Distribution in the Molten Salt Core Reactor
Authors: Dwiyulianti A , Yonanda A , Zulfalina  , Safitri R , Yusibani E 
Published: April 2024

Abstract
A critical aspect in the design of a nuclear reactor that needs to be considered is thermal analysis. This parameter relates to molten salt circulation, which serves as a fuel, and coolant in Molten Salt Reactor (MSR) core reactors. This study simulates the temperature distribution performance of the MSR core by considering the effect of the number of molten salt channels with inlet temperature variations. Knowing the temperature distribution will predict the characteristics of heat transfer in the form of natural convection for the survival of the reactor. The reactor used a Molten Salt Breeder Reactor (MSBR) design developed by Oak Ridge National Laboratory (ORNL). The Ansys software was used to simulate a 3D model under steady-state conditions. The geometry was divided into two regions: solid (graphite material) and fluid (molten salt). The thickness of the moderator and radius of the molten salt channel were 0.0508 and 0.0208 m, respectively. The moderator height was 1.98 m. The number of molten salt channels varied up to four. The results showed a temperature difference of 9 to 15 K when the channel increased from one to four at 839 K inlet temperature.
Qudit Concurrence and Monogamy
Authors: Yanuwar Edyharto , Kosasih Jusak Sali 
Published: April 2024

Abstract
It is well known that entanglement is one of the distinctive aspects of the quantum world. The measurement and quantification of entanglement is one of the major problems in understanding and applying this resource. This research aims to investigate entanglement measures and their properties in high-dimensional systems. One such property is entanglement monogamy, viz. quantum correlations are not shareable, different from the classical ones. On the other hand, the study of entanglement depends on the definitions of its measures. Here we examine the applicability of concurrence, an entanglement measure known for its effectiveness in the analysis of qubit entanglement. While the entanglement of two-level systems or qubits is widely understood, its extension to higher dimensions remains challenging. Our research establishes equivalence between different concurrence definitions for bipartite qubit pure states and extends them to qudits. Subsequently, we investigate the monogamous relations of these measurements to explore their characteristics. This approach might enhance our comprehension of quantum traits in qudit systems and advance our understanding of entanglement in broader quantum contexts.
Analysis of Mineralization and Disease Characteristics of Bronzes Unearthed in Archaeology
Authors: Jiachang Chen , Liwei Chen , Liangshuai Zhang , xinzhan Cui , Xin Liu 
Published: April 2024

Abstract
Bronze artifacts unearthed by archaeologists are affected by underground burial environment and other factors, and most of them have different degrees of corrosion. Bronze artifacts unearthed by archaeologists have different degrees of mineralization. Establishing a data analysis database for basic structure and disease analysis of mineralized bronze artifacts is a necessary prerequisite for developing targeted reinforcement materials and realizing accurate protection. Based on the characteristic analysis of the mineralized bronzes, this paper systematically analyzed the mineralization and disease characteristics of the mineralized bronzes by Confocal Super Depth-of-Field Microscope(CSDTM), scanning electron microscopy (SEM), energy spectrum analysis(EDS) and XRD, and compared and analyzed the microscopic morphology, composition and phase structure of the bronzes under the same burial environment, so as to provide support for subsequent targeted protection and reinforcement.
Characterization of the ATLAS Liquid Argon Front-End ASIC ALFE2 for the HL-LHC upgrade
Authors: Matakias D. , Carini G. , Chen H. , Dabrowski M. , Deptuch G. , Duflot L. , Kierstead J. , Liu T. , Ma H. , Morange N. , Rescia S. , Tang S. , Xu H. 
Published: April 2024

Abstract
ALFE2 is an ATLAS Liquid Argon Calorimeter (LAr) Front-End ASIC designed for the HL-LHC upgrade. ALFE2 comprises four channels of pre-amplifiers and CR-(RC)2 shapers with adjustable input impedance. ALFE2 features two separate gain outputs to provide 16-bit dynamic-range coverage and an optimum resolution. ALFE2 is characterized using a Front-End Test Board (FETB) based on a Zynq UltraScale+ MPSoC and two octal-channel 16-bit high-speed ADCs. The test results indicate that ALFE2 fulfills or greatly exceeds all specifications on gain, noise, linearity, uniformity, and radiation tolerance.
The HLS-II alarm system optimization for removing nuisance alarms
Authors: Xu S. , Wang K.X. , Liu G.F. , Li W.M. , Sun X.K. 
Published: April 2024

Abstract
Hefei Light Source II (HLS-II) is a vacuum ultraviolet
synchrotron light source. The HLS-II alarm system is responsible for
monitoring the alarms of the process variables and distributing the
alarm events in time. Nuisance alarms reduce the functionality,
credibility and trustworthiness of the alarm system. This paper
proposes a method for design alarm deadband and delay timers to
remove the nuisance alarm events to the expected ratio. An optimal
deadband width is calculated to reduce the alarm events while
balancing the effects of reducing the occurrence number of alarm
events and increasing the duration of alarm events. If the expected
ratio is not met after using the optimal deadband width, the delay
timers are set additionally. The Bayesian estimation approach is
used to estimate the probability that the delay timers eliminate the
alarm events. This method is based on statistical properties of the
process variables and can effectively remove nuisance alarm
events. Two examples of the HLS-II alarm system are provided to
illustrate the proposed method. In the two examples, the optimal
deadband removed 99.27% and 88.92% of nuisance alarms
respectively.
Fabrication of 197Au-backed Silicon target for In-beam Gamma-ray spectroscopy experiment
Authors: S.R. Abhilash , Sharma Madan , Kumar Sanjeev , Singh R.P. , Behera B.R. 
Published: April 2024

Abstract
The fabrication of stable 197Au-backed natural Si
targets with a thickness ranging from ∼ 400 μg/cm2 to
∼ 1.1 mg/cm2 using an electron beam evaporation technique
is discussed. In one of the attempts, a graphite sheet was used as
an evaporation source, which proves to be an efficient method in
terms of minimal wastage of source material. Characterizations of
the fabricated targets using various technique revealed that the
targets were uniform in thickness and had negligible
contamination. The optimization of evaporation parameters in the
present work enhances the potential for future fabrication of
isotopically enriched Si targets.
Preparation and characterization of chitosan/polyvinyl alcohol antibacterial sponge materials
Authors: Chen Xue , Xu Jing , Gafur Alidha , Chen Baoyu , Han Yibo , Zhang Liyuan , Kong Lingwen , Wang Guixue , Ye Zhiyi 
Published: April 2024

Abstract
This study utilized the freeze-drying method to create a chitosan (CS) and polyvinyl alcohol (PVA) sponge. To enhance its antibacterial properties, curcumin and nano silver (Cur@Ag) were added for synergistic antibacterial. After adding curcumin and nano silver, the mechanical properties of the composite sponge dressing (CS-PVA-Cur@Ag) were improved. The porosity of the composite sponge dressing was closed to 80%, which was helpful for drug release, and it had good water absorption and water retention rate. The nano silver diameter was 50–80 nm, which was optimal for killing bacteria. Antibacterial tests used Escherichia coli and Staphylococcus aureus demonstrated that little nano silver was required to eliminate bacteria. Finally, in the rat full-thickness skin wound model, the composite sponge dressing can promote wound healing in a short time. In summary, CS-PVA-Cur@Ag wound dressing could protect from bacterial infection and accelerate wound healing. Thus, it had high potential application value for wound dressing.
Exotic magnetization curves in classical square-kagomé spin lattices
Authors: Schmidt Heinz-Jürgen , Richter Johannes 
Published: April 2024

AbstractClassical spin systems with non-coplanar ground states typically exhibit nonlinear magnetization curves characterized by kinks and jumps. Our article briefly summarizes the most important related analytical results. In a comprehensive case study, we then address AF-square kagomé and AF/FM-square kagomé spin lattices equipped with additional cross-plaquette interactions. It is known that these systems have non-coplanar ground states that assume a cuboctahedral structure in the absence of a magnetic field. When a magnetic fieldHis switched on, a rich variety of different phases develops from the cuboctahedral ground state, which are studied in their dependence onHand a cross-plaquette coupling constantJ3>0. For the AF square-kagomé spin lattice, we carefully identify and describe seven phases that appear in a phase diagram with five triple points. The transitions between these phases are predominantly discontinuous, although two cases exhibit continuous transitions. In contrast, the phase diagram of the AF/FM square-kagomé model shows only four phases with a single triple point, but these also lead to exotic magnetization curves. Here, too, there are two types of phase boundaries belonging to continuous and discontinuous transitions.