bluuebunny/crossref_metadata_2025_split huggingface dataset:
Gate Tunable Labyrinth Domain Structures in a van der Waals Itinerant Ferromagnet Cr7Te8
Authors: Meng 孟 Kui 奎 , Li 李 Zeya 泽亚 , Shen 申 Yicheng 艺成 , Bi 毕 Xiangyu 翔宇 , Rao 饶 Junhao 俊豪 , Qian 钱 Yuting 玉婷 , Gao 高 Zhansheng 战胜 , Chen 陈 Peng 朋 , Qiu 邱 Caiyu 彩玉 , Qin 秦 Feng 峰 , Wu 吴 Jinxiong 金雄 , Luo 罗 Feng 锋 , Huang 黄 Junwei 俊伟 , Yuan 袁 Hongtao 洪涛 
Published: August 2024

Abstract
Manipulating magnetic domain structure plays a key role in advanced spintronics devices. Theoretical rationale is that the labyrinthine domain structure, normally appearing in ferromagnetic thin films with strong magnetic anisotropy, shows a great potential to increase data storage density for designing magnetic nonvolatile memory and logic devices. However, an electrical control of labyrinthine domain structure remains elusive. Here, we demonstrate the gate-driven evolution of labyrinthine domain structures in an itinerant ferromagnet Cr7Te8. By combining electric transport measurements and micromagnetic finite difference simulations, we find that the hysteresis loop of anomalous Hall effect in Cr7Te8 samples shows distinct features corresponding to the generation of labyrinthine domain structures. The labyrinthine domain structures are found to be electrically tunable via Li-electrolyte gating, and such gate-driven evolution in Cr7Te8 originates from the reduction of the magnetic anisotropic energy with gating, revealed by our micromagnetic simulations. Our results on the gate control of anomalous Hall effect in an itinerant magnetic material provide an opportunity to understand the formation and evolution of labyrinthine domain structures, paving a new route towards electric-field driven spintronics.
Microscopic Magnetism of Nickel-Based Infinite-Layer Superconducting Parent Compounds RNiO2 (R = La, Nd): A μSR Study
Authors: Wu 吴 Qiong 琼 , Fu 付 Ying 盈 , Wang 王 Le 乐 , Zhou 周 Xuefeng 雪峰 , Wang 王 Shanmin 善民 , Zhu 朱 Zihao 子浩 , Chen 陈 Kaiwen 锴文 , Jiang 姜 Chengyu 程予 , Shiroka Toni , Hillier Adrian D. , Mei 梅 Jia-Wei 佳伟 , Shu 殳 Lei 蕾 
Published: August 2024

Abstract
By using muon spin relaxation (μSR) measurements, we perform a comparative study of the microscopic magnetism in the parent compounds of infinite-layer nickelate superconductors RNiO2 (R = La, Nd). In either compound, the zero-field μSR spectra down to the lowest measured temperature reveal no long-range magnetic order. In LaNiO2, short-range spin correlations appear below T = 150 K, and spins fully freeze below T ∼ 10 K. NdNiO2 exhibits a more complex spin dynamics driven by the Nd 4f and Ni 3d electron spin fluctuations. Further, it shows features suggesting the proximity to a spin-glass state occurring below T = 5 K. In both compounds, the spin behavior with temperature is further confirmed by longitudinal-field μSR measurements. These results provide new insight into the magnetism of the parent compounds of the superconducting nickelates, crucial to understanding the microscopic origin of their superconductivity.
Impact of nanosilver surface electronic distributions on serum protein interactions and hemocompatibility
Authors: Rivero Paula S , Pistonesi Denise B , Belén Federico , Centurión M Eugenia , Benedini Luciano A , Rauschemberger M Belén , Messina Paula V 
Published: August 2024

Abstract
The translation of silver-based nanotechnology ‘from bench to bedside’ requires a deep understanding of the molecular aspects of its biological action, which remains controversial at low concentrations and non-spherical morphologies. Here, we present a hemocompatibility approach based on the effect of the distinctive electronic charge distribution in silver nanoparticles (nanosilver) on blood components. According to spectroscopic, volumetric, microscopic, dynamic light scattering measurements, pro-coagulant activity tests, and cellular inspection, we determine that at extremely low nanosilver concentrations (0.125–2.5 μg ml−1), there is a relevant interaction effect on the serum albumin and red blood cells (RBCs). This explanation has its origin in the surface charge distribution of nanosilver particles and their electron-mediated energy transfer mechanism. Prism-shaped nanoparticles, with anisotropic charge distributions, act at the surface level, generating a compaction of the native protein molecule. In contrast, the spherical nanosilver particle, by exhibiting isotropic surface charge, generates a polar environment comparable to the solvent. Both morphologies induce aggregation at NPs/bovine serum albumin ≈ 0.044 molar ratio values without altering the coagulation cascade tests; however, the spherical-shaped nanosilver exerts a negative impact on RBCs. Overall, our results suggest that the electron distributions of nanosilver particles, even at extremely low concentrations, are a critical factor influencing the molecular structure of blood proteins’ and RBCs’ membranes. Isotropic forms of nanosilver should be considered with caution, as they are not always the least harmful.
A family of integrable maps associated with the Volterra lattice
Authors: Hone A N W , Roberts J A G , Vanhaecke P 
Published: August 2024

Abstract
Recently Gubbiotti, Joshi, Tran and Viallet classified birational maps in four dimensions admitting two invariants (first integrals) with a particular degree structure, by considering recurrences of fourth order with a certain symmetry. The last three of the maps so obtained were shown to be Liouville integrable, in the sense of admitting a non-degenerate Poisson bracket with two first integrals in involution. Here we show how the first of these three Liouville integrable maps corresponds to genus 2 solutions of the infinite Volterra lattice, being the g = 2 case of a family of maps associated with the Stieltjes continued fraction expansion of a certain function on a hyperelliptic curve of genus

g
⩾
1

. The continued fraction method provides explicit Hankel determinant formulae for tau functions of the solutions, together with an algebro-geometric description via a Lax representation for each member of the family, associating it with an algebraic completely integrable system. In particular, in the elliptic case (g = 1), as a byproduct we obtain Hankel determinant expressions for the solutions of the Somos-5 recurrence, but different to those previously derived by Chang, Hu and Xin. By applying contraction to the Stieltjes fraction, we recover integrable maps associated with Jacobi continued fractions on hyperelliptic curves, that one of us considered previously, as well as the Miura-type transformation between the Volterra and Toda lattices.
Thermoelectric properties of

Sn

2

SSe

via band engineering with Ge alloying
Authors: Kaur Baljinder , Khandy Shakeel Ahmad , Dhiman Shobhna , Albaqami Munirah D , Kaur Kulwinder 
Published: August 2024

Abstract
The thermoelectric properties of

Sn

2

SSe

are investigated via band engineering using Ge alloying. In this work, the electronic and thermoelectric properties of

Sn

2

SSe

doped with Ge at different concentrations (x=0, 0.25, 0.5, 0.75, and 1) are investigated using density functional theory and Boltzmann transport theory. At 300K, the Seebeck coefficient and electrical conductivity are enhanced with Ge alloying from −960μV/K to −1535 μV/K and from 3.4 × 105 S/cm to 4.1 × 105 S/cm respectively. However, the lowest value of lattice thermal conductivity is observed at 700 K which is 2.7W/mK. At x = 1, A remarkably high ZT value 1.7 is achieved at 700 K for

Sn

2
(
1
−
x
)

Ge

2
(
x
)

SSe

. The high ZT value is 1.8 times greater than pure compound.
Novel grayscale image encryption based on 4D fractional-order hyperchaotic system, 2D Henon map and knight tour algorithm
Authors: Ullah Saeed , Liu Xinge , Waheed Adil , Zhang Shuailei , Li Shan 
Published: August 2024

Abstract
With the increasing frequency of data exchange, the security of transmitted information, especially images, has become paramount. This paper proposes a novel algorithm for encrypting grayscale images of any dimension by using a proposed fractional-order (FO) 4D hyperchaotic system, 2D Henon chaotic map permutation, and the knight tour algorithm. Initially, chaotic sequences are generated by utilizing the proposed FO 4D hyperchaotic system, which are later employed to rearrange and shuffle the entire image pixels to bolster the efficacy of image encryption. To introduce an additional layer of diffusion, 2D Henon chaotic map permutation is used. Furthermore, the knight tour algorithm is applied by starting from a chosen point and executing specified rounds on the scrambled image to increase the encryption’s robustness. The resultant image encryption algorithm undergoes thorough testing and evaluation. It exhibits high sensitivity to the encryption key and boasts a larger key space, rendering it more resistant to brute-force attacks. The proposed algorithm demonstrates an approximate correlation of 0 between adjacent pixels. Further, encryption of a grayscale image of size 256 × 256 takes approximately 0.4 seconds, rendering it more suitable for cryptographic purposes.
Entropy generation in newtonian vs non-newtonian nanofluid flow under vibration
Authors: Mishra Santosh Kumar , Mishra Alka , Singh Pushpendra 
Published: August 2024

Abstract
Numerical investigation into the effects of vibration on heat transfer and entropy generation in Newtonian and Non-Newtonian nanofluid flows through pipes reveals enhanced heat transfer via intensified fluid agitation and improved particle dispersion. Thermal entropy generation analysis shows reduced irreversibility in vibrated flow, indicating improved flow mixing. Vibration enhances heat transfer by intensifying fluid agitation and promoting particle dispersion near the wall, resulting in a significantly more uniform temperature distribution along the pipe, approximately 100 times more than steady-state flow. This study underscores vibration’s potential to optimize heat transfer and reduce entropy generation in nanofluid systems, emphasizing velocity and rheological impacts. Comparison of vibrated flow to steady-state flow for Newtonian and non-Newtonian fluids reveals significant improvements under vibration, particularly at lower Reynolds numbers where non-Newtonian fluids exhibit pronounced effects. Future research directions include exploring thermal radiation’s impact on entropy generation, analyzing different nanofluid compositions, and investigating varied boundary conditions and geometries to advance understanding in this field. This study provides valuable insights into the complex interplay among vibration, fluid dynamics, and heat transfer in nanofluid flows. Its findings have practical implications for optimizing thermal management systems in diverse engineering applications.
Simulations of the optical diffraction patterns produced by the pressure field of a clinical shock wave source
Authors: García-Ramírez Fernando E , Loske Achim M , Avila Remy 
Published: August 2024

Abstract
Today, shock waves are used to treat a wide variety of ailments. Consequently, there is a need to develop efficient methodologies for comparing and evaluating the pressure fields generated by different equipment. Hydrophones are commonly utilized for accurate pressure measurements although they can be damaged by pitting due to acoustic cavitation. Furthermore, the range of measurement is limited by the position of the device. Optical methods have also been proposed since the presence of a disturbing device in the wave propagation medium is not necessary, and they provide a broader registering field. Nevertheless, these methods do not provide accurate measurements compared with those obtained with polyvinylidene difluoride or fiber-optic hydrophones. Herein, an optical method for shock wave characterization based on diffraction analysis, that can lead to more precise results, is proposed. The phase fluctuations of a light wave produced when it traverses the shock wave pressure field are calculated. The diffraction patterns produced by this perturbed wave at an observation plane at different propagation distances are presented. Considering the state of the art of high-speed cameras, we conclude that an experimental setup, based on the results reported here, can contribute to the evaluation and comparison of shock wave generators for medical applications.
Four-wheel steering vehicle trajectory tracking control based on PSO optimized MPC
Authors: Li Shaohua , Yang Zekun , Li Baolu 
Published: August 2024

Abstract
In order to address the difficulty induced by controller parameter uncertainty in trajectory tracking control of four-wheel steering vehicles(4WS), a trajectory tracking control method for unmanned vehicles based on particle swarm optimization (PSO) is proposed to improve the robustness of the controller. The approach involves the use of model predictive control (MPC) for implementing trajectory tracking control for the unmanned vehicle. Iterative optimization is conducted by utilizing the integral time absolute error (ITAE) as the objective function, which involves multiplying the time integral of lateral deviation and yaw rate deviation. This process ultimately determines the optimized MPC weight matrix parameters. Co-simulation using CarSim/Simulink reveals a remarkable reduction of 46.1% in the maximum longitudinal error, and the optimization proves effective across various vehicle speed conditions. Experimental results validate the effectiveness of the proposed control strategy, with the 4WS control strategy yielding a maximum longitudinal error of 0.28 meters, affirming that the overall controller design successfully accomplishes its intended objectives.
Vortex superlattice induced second-order topological mid-gap states in first-order topological insulators and superconductors
Authors: He Jing , Yan Yu , Wu Ya-Jie 
Published: August 2024

Abstract
Topological defects such as vortex and dislocations, support zero-energy localized states as a reflection of the bulk topology, in first-order topological insulators and superconductors. Furthermore, emergent first-order topological mid-gap states have been discovered driven by the magnetic vortex superlattice. However, whether the higher-order topological mid-gap states would emerge from the first-order topological insulators and superconductors with the vortex superlattice remains elusive. In this work, we propose vortex superlattice could induce second-order topological mid-gap states with staggered lattice spacings for vortices in first-order topological insulators and superconductors. These higher-order topological mid-gap states originate from the staggered tunneling between vortex-induced bound states and the emergent π flux on vortex superlattices, as an intrinsic exhibition of the interplay between vortices and bulk topology for the first-order topological states. Our work uncovers higher-topological characteristics of topological-defect superlattice in first-order topological states, and develops a controllable environment for the creation and exploration of higher-order topological states.
Characterization of interface states and investigation of possible current conduction mechanisms in the Pt, Au, Cu/n-InP Schottky diodes
Authors: Kim Hogyoung 
Published: August 2024

Abstract
Based on the capacitance/conductance–voltage (C/G–V) and current–voltage (I–V) methods, the interface characteristics and the current conduction mechanisms of Pt/n-InP Schottky contacts were studied in detail. The interface states strongly affected the values of capacitance in the depletion region. From Terman, G–V, and forward I–V methods, the interface state density (D
it) was found to range from mid-1012 to mid-1013 eV−1cm−2. The forward current characteristics was not elucidated by the thermionic emission (TE) model assisted by tunneling via the interfacial layer. Rather, the spatially distributed inhomogeneous barrier could interpret the forward current characteristics. Trap-assisted tunneling involving phosphorous vacancy (VP)-related defects was observed to be dominant in the case of the reverse current characteristics. The comparison of Pt metal contact with Cu and Au contacts revealed that Pt contact has the highest D
it among three contacts.
Statistical properties of ideal photons in a two-dimensional dye-filled spherical cap cavity
Authors: Cheng 成 Ze 泽 
Published: August 2024

Abstract
Within the framework of quantum statistical mechanics, we have proposed an exact analytical solution to the problem of Bose–Einstein condensation (BEC) of harmonically trapped two-dimensional (2D) ideal photons. We utilize this analytical solution to investigate the statistical properties of ideal photons in a 2D dye-filled spherical cap cavity. The results of numerical calculation of the analytical solution agree completely with the foregoing experimental results in the BEC of harmonically trapped 2D ideal photons. The analytical expressions of the critical temperature and the condensate fraction are derived in the thermodynamic limit. It is found that the 2D critical photon number is larger than the one-dimensional (1D) critical photon number by two orders of magnitude. The spectral radiance of a 2D spherical cap cavity has a sharp peak at the frequency of the cavity cutoff when the photon number exceeds the critical value determined by a temperature.
Fast nonlinear scattering of runaway electron beams through resonant interactions with plasma waves
Authors: Lin Kang Hye , Dae Yoon Young , Cho Myung-Hoon , Yun Gunsu S. 
Published: August 2024

Abstract
The resonant interaction between a runaway electron (RE) beam and a reactor-grade background plasma is investigated through two-dimensional particle-in-cell simulations, employing a simplified model of the system. The temporal evolutions of the electron momentum distribution function for two separate initial beam energies (1 and 10 MeV) are tracked, revealing the occurrence of plasma wave growth concomitant with pitch angle scattering or momentum distribution diffusion within the RE beam. Notably, we identify and confirm the dependence of the dominant resonance condition on the initial kinetic energy of the RE beam. Furthermore, we quantify the effect of particle-wave interactions on the RE momentum distribution diffusion by assessing the average kinetic energy flux from the RE distribution function.
Line optimization of multi-beam sonar sounding technology in ocean surveying and mapping
Authors: Li Mengjia , Zhou Zien , Lyu Shaowei , Liang Mengxuan , Gao Zixuan , Xia Chengming 
Published: August 2024

Abstract
In this paper, the problem of line optimization existing in the practical application of multi-beam sonar-sounding technology is studied. Firstly, by analyzing the working principle of multi-beam sonar, the multi-beam coverage width model and the overlap rate model between adjacent strips are established considering the slope of seabed terrain. Then, a more general parameterized multi-beam coverage width formula with an adjustable azimuth angle of the line is derived under three-dimensional space coordinates. Then, the minimum total line length is defined as the objective function, and the constraint conditions of overlap rate and complete coverage are added to establish the mathematical model of line planning. Then, an iterative algorithm is designed to quickly determine the line spacing, and an improved particle swarm optimization algorithm, including a trigonometric function change learning factor, is used to search for the optimal line layout. Finally, the simulation results show that the optimized scheme can reduce the total line length by 2% compared with the unoptimized line layout, which verifies the effectiveness of the established model and algorithm. This study provides a theoretical basis for navigation planning and shipboard system optimization of multi-beam sonar survey. Subsequent work taking into account the influence of complex sea conditions, efforts were made to expand the model’s applicability.
Evaluation of sodium hyaluronate-based composite hydrogels for prevention of nasal adhesions
Authors: Padalhin Andrew , Ryu Hyun Seok , Yoo Seung Hyeon , Abueva Celine , Seo Hwee Hyon , Park So Young , Min Jun Won , Chung Phil-Sang , Woo Seung Hoon 
Published: August 2024

Abstract
During the healing process after intra-nasal surgery, the growth and repair of damaged tissues can result in the development of postoperative adhesions. Various techniques have been devised to minimize the occurrence of postoperative adhesions which include insertion of stents in the middle meatus, application of removable nasal packing, and utilizing biodegradable materials with antiadhesive properties. This study assesses the efficacy of two sodium hyaluronate (SH)–based freeze-dried hydrogel composites in preventing postoperative nasal adhesions, comparing them with commonly used biodegradable materials in nasal surgery. The freeze-dried hydrogels, sodium hyaluronate and collagen 1(SH-COL1) and sodium hyaluronate, carboxymethyl cellulose, and collagen 1 (SH-CMC-COL1), were evaluated for their ability to reduce bleeding time, promote wound healing, and minimize fibrous tissue formation. Results showed that SH-CMC-COL1 significantly reduced bleeding time compared to both biodegradable polyurethane foam and SH-COL1. Both SH-COL1 and SH-CMC-COL1 exhibited enhanced wound healing effects, as indicated by significantly greater wound size reduction after two weeks compared to the control. Histological analyses revealed significant differences in re-epithelialization and blood vessel count among all tested materials, suggesting variable initial wound tissue response. Although all treatment groups had more epithelial growth, with X-SCC having higher blood vessel count at 7 d post treatment, all treatment groups did not differ in all histomorphometric parameters by day 14. However, the long-term application of SH-COL1 demonstrated a notable advantage in reducing nasal adhesion formation compared to all other tested materials. This indicates the potential of SH–based hydrogels, particularly SH-COL1, in mitigating postoperative complications associated with nasal surgery. These findings underscore the versatility and efficacy of SH–based freeze-dried hydrogel composites for the management of short-term and long-term nasal bleeding with an anti-adhesion effect. Further research is warranted to optimize their clinical use, particularly in understanding the inflammatory factors influencing tissue adhesions and assessing material performance under conditions mimicking clinical settings. Such insights will be crucial for refining therapeutic approaches and optimizing biomaterial design, ultimately improving patient outcomes in nasal surgery.