bluuebunny/crossref_metadata_2025_split huggingface dataset:
On novel Hexa-compound combination synchronization over nineteen n-dimensional category-B chaotic systems and electronic circuit schematic
Authors: Khattar Dinesh , Deo Naokant , Sirohi Mukul 
Published: December 2024

Abstract
Synchronization of chaotic models involving multiple drives and responses has numerous practical applications in cryptography and information processing. Existing research on synchronizing multiple chaotic systems is currently limited to twelve components. This study introduces a novel higher-order synchronization method, hexa compound combination, that synchronizes an assembly of nineteen n-dimensional chaotic models. Well-known synchronization methods, such as double compound, triple compound, and quad compound, serve as particular instances of this new strategy. Thus, our research significantly advances the understanding of multi-leveled chaos synchronization. In addition, we also present a non-uniformly conservative system classified into a rare category B, analyze its dynamic properties, and utilize it for achieving the proposed synchronization. Numerical results are provided through graphical representations to illustrate the efficacy of the new synchronization approach by comparing it with other techniques. Furthermore, we emulate the corresponding virtual schematic circuit of the newly designed system to evaluate its real-world applicability and utility.
Approximate analytic periodic solution of circular Sitnikov restricted four-body problem
Authors: Liu Weijia , Wu Baisheng 
Published: December 2024

Abstract
In this technical note, a high-precision approximate analytic periodic solution of the circular Sitnikov restricted four-body problem is constructed. In order to improve the accuracy, the governing differential equation is first converted into another form without using Taylor expansion. Then the approximate solution is established by combining the harmonic balance method and Newton’s method. Compared with the fourth-order approximate analytic solution obtained by using the Lindstedt-Poincaré method, only one Newton iteration can obtain higher precision, wider amplitude range, and shorter approximate analytic period and periodic solution expressions.
The scaling behaviour of localised and extended states in one-dimensional tight-binding models with disorder
Authors: Schaefer Luca , Drossel Barbara 
Published: December 2024

Abstract
We investigate two one-dimensional tight-binding models with disorder that have extended states at zero energy. We use exact and partial diagonalisation of the Hamiltonian to obtain the eigenmodes and the associated participation ratios, and the transfer-matrix method to determine the localisation length. The first model has no on-site disorder, but random couplings. While the participation ratio remains finite at zero energy, the localisation length diverges logarithmically as the energy goes to zero. We provide an intuitive derivation of this logarithmic divergence based on the weak coupling of the two sublattices. The second model has a conserved quantity as the row sums of the Hamiltonian are zero. This model can be represented as a harmonic chain with random couplings, or as a diffusion model on a lattice with random links. We find, in agreement with existing analytical calculations, that the number of system-spanning eigenmodes increases proportionally to the square root of the system size, and we related this power law to other power laws that characterise the scaling behaviour of the eigenmodes, the participation ratio, the localisation length, and their dependence on energy and system size. When disorder is so strong that the smallest hopping terms can be arbitrarily close to zero, all these power laws change, and we show a crossover between the two scaling regimes. All these results are explained by intuitive arguments based on scaling.
Theoretical investigation of elastic and optoelectronic properties of barium-based Halide perovskites KBaI3 and RbBaI3
Authors: Meziani Amel , Meradji Hocine , Ghemid Sebti 
Published: December 2024

Abstract
The objective of this study is to evaluate the structural, electronic, elastic, and optical characteristics of Ba-based halide perovskites KBaI3 and RbBaI3. Our investigation utilized the full-potential linearized augmented plane wave approach (FP-LAPW) with the PBE-GGA (Perdew–Burke–Ernzerhof generalized gradient approximation). To calculate the electronic band structures, we employed the TB-mBJ (Tran–Blaha modified Becke–Johnson) potential. The structural parameters were found to be in reasonable agreement with available data. Both compounds exhibit an indirect band gap (R-Γ), with estimated band gap values of 5.019 eV for KBaI3 and 4.997 eV for RbBaI3 using the TB-mBJ potential. For the first time, the elastic properties, as well as the real and imaginary parts of the dielectric function and other optical constants of KBaI3 material have been determined. The predicted elastic constants indicate that both materials are mechanically stable. The Pugh ratio, Poisson’s ratio and Cauchy pressure values further suggest that the compounds are ductile. The optical properties, including the real and imaginary parts of the dielectric function, refractive index, extinction coefficient, absorption coefficient, and reflectivity, have been analyzed and discussed.
Platinum diselenide (PtSe2) mediated heterostructure based SPR sensor for the detection of formalin: a theoretical analysis
Authors: Kumar Rajeev , Agarwal Sajal , Pal Narendra , Pal Sarika , Prajapati Yogendra Kumar 
Published: December 2024

Abstract
Formalin adulteration and mixing is a serious problem in tropical countries because of its adverse impact on human health. In current study, SPR based sensor is designed and modelled analytically to achieve the maximum sensitivity with good selectivity. To achieve this, a heterostructure of (BP/PtSe2/BP) in SPR sensor has played significant role to enhance the sensor performance due to their better charge carrier confinement and high charge carrier transfer efficiency to metal interface. Analysed designs ensures the maximum sensitivity of 273.05 °/RIU and detection accuracy of 0.204 /°. Distribution of electric field is also estimated to analyse the field enhancement at the interfaces of several material layers. Penetration depth (PD) of 190.94 nm indicating distance between positions from peak field intensity to 37% strength of the maximum electric field intensity is achieved. The proposed sensor demonstrates the potential for detection of formalin in food industry.
Exploiting 4D non-degenerate chaotic system and adaptive diffusion based on the finite field for 3D model encryption
Authors: Lu Yang , Xie Xiaodong , Zhao Xiuming , Chai Xiuli , Gan Zhihua , Zhang Yiming 
Published: December 2024

Abstract
With the rise of meta-universe, the application of 3D models in various fields has garnered significant attention, for they may furnish more vivid and detailed representations. However, many problems lie in securing the transmission of 3D model data, as the tampered possibility increases while in transit. Therefore, protecting 3D model data is crucial. Meanwhile, existing chaotic systems have many drawbacks such as degeneracy, predictability, and initial value insensitivity, resulting in a high risk of attacks on 3D model encryption algorithms. This study proposes a 3D model encryption algorithm using a 4D non-degenerate chaotic system and adaptive diffusion based on the finite field. Firstly, a 4-dimensional (4D) non-degenerate chaotic system is designed for generating pseudorandom sequences. Compared to the classical 4D chaotic systems, our proposed chaotic system exhibits better chaotic performance in several aspects, such as Lyapunov exponents, NIST test, and initial value sensitivity. Further, the 3D data format of the 3D model is transformed into a 2D data format. Then, a rotation misalignment across rows and columns (RMARC) is presented to confuse the 2D coordinate data format and break the high correlation of the 2D coordinate values. Finally, the scrambled data is diffused within a finite field using the chaotic sequence to get the diffused 3D model. In addition, we have done many experiments to verify the encryption efficiency, security performance, and encryption quality. The experimental results show that the 3D encryption system performs well in these aspects.
Exact chirped solutions, stability analysis and chaotic behaviours of the perturbed nonlinear Schrödinger equation with anti-cubic nonlinearity and spatio-temporal dispersion
Authors: Xiang Qibin 
Published: December 2024

Abstract
The nonlinear Schrödinger equation (NLSE) has extensive applications in optical fiber communications. In nonlinear fibers, the study of chirped solitons is crucial for achieving long-distance high-speed optical communications. This paper investigates the perturbed NLSE with anti-cubic nonlinearity and spatio-temporal dispersion (STD), which can more accurately describe the effect of particle distance decay. First, I analyzed the qualitative characteristics of soliton solutions using dynamic system theory. Using the complete discrimination system for polynomial proposed by Liu, I obtained various new types of chirped soliton, including rational solutions, elliptic function solutions, singular solutions and so on. Then, I perform numerical simulations of special chirped solitons under given parameters to demonstrate their physical properties. Furthermore, I analyzed the energy of the soliton solution and established its stability conditions. Finally, I studied the chaotic behavior of the equation and found that different perturbation functions lead to significantly different chaotic characteristics, providing corresponding Lyapunov exponents and phase diagrams. These findings contribute to the practical applications of complex nonlinear systems and the development of optical fiber communications.
Optimal celestial bodies for dark matter detection
Authors: Leane Rebecca K. , Tong Joshua 
Published: December 2024

Abstract
A wide variety of celestial bodies have been considered as dark matter detectors. Which
stands the best chance of delivering the discovery of dark matter? Which is the most powerful dark
matter detector? We investigate a range of objects, including the Sun, Earth, Jupiter, Brown
Dwarfs, White Dwarfs, Neutron Stars, Stellar populations, and Exoplanets. We quantify how
different objects are optimal dark matter detectors in different regimes by deconstructing some of
the in-built assumptions in these search sensitivities, including observation potential and
particle model assumptions. We find new constraints and future sensitivities across a range of
dark matter annihilation final states. We quantify mediator properties leading to detectable
celestial-body energy injection or Standard Model fluxes, and show how different objects can be
expected to deliver corroborating signals. We discuss different search strategies, their
opportunities and limitations, and the interplay of regimes where different celestial objects are
optimal dark matter detectors. Deconstructing the assumptions of these searches leads us to point
out a new search using the Galactic center stellar population that can provide greater sensitivity
to the dark matter-nucleon scattering cross section than the Sun, despite being significantly
further away in our Galaxy.
Efficient compression of redshift-space distortion data for late-time modified gravity models
Authors: Toda Yo , Gómez-Valent Adrià , Koyama Kazuya 
Published: December 2024

Abstract
Current cosmological observations allow for deviations from the standard growth of
large-scale structures in the universe. These deviations could indicate modifications to General
Relativity on cosmological scales or suggest the dynamical nature of dark energy. It is important
to characterize these departures in a model-independent manner to understand their significance
objectively and explore their fundamental causes more generically across a wider spectrum of
theories and models. In this paper, we compress the information from redshift-space distortion
data into 2–3 parameters μ

i
, which control the ratio between the effective gravitational
coupling in Poisson's equation and Newton's constant in several redshift bins in the late
universe. We test the efficiency of this compression using mock final-year data from the Dark
Energy Spectroscopic Instrument (DESI) and considering three different models within the class of
effective field theories of dark energy. The constraints on the parameters of these models,
obtained from both the direct fit to the data and the projection of the compressed parameters onto
the parameters of the models, are fully consistent, demonstrating the method's good
performance. Then, we
apply it to current data and find hints of a suppressed matter growth in the universe at ∼
2.7σ C.L., in full accordance with previous works in the literature. Finally, we perform a
forecast with DESI data and show that the uncertainties on the parameters μ
1 at z < 1 and
μ
2 at 1 < z < 3 are expected to decrease by approximately 40% and 20%, respectively,
compared to those obtained with current data. Additionally, we project these forecasted
constraints onto the parameters of the aforesaid models.
Surface damage in tungsten induced by high heat flux helium irradiation at high temperatures across melting point
Authors: Wang Hanqing , Yuan Yue , Fu Baoqin , Greuner H. , Böswirth B. , Ren Mengchong , Nie Yufei , Zhang Peng , Cao Xingzhong , Lu Guang-Hong 
Published: December 2024

Abstract
Understanding the behavior of tungsten (W) surface damage under the synergistic effects of high heat flux (HHF) loading and helium (He) irradiation is essential for predicting material performance during off-normal operations in ITER. In this study, surface modifications occurring at high temperatures (>2200 K) up to the melting point were investigated by conducting experiments involving two campaigns of vertical displacement events like HHF He neutral beam pulse irradiation on polycrystalline W samples at the test facility Garching LArge DIvertor Sample. As the surface temperature of W increased due to irradiation (2253–3683 K), pinholes appeared on the surface, showing a trend of increasing size and decreasing number density, indicating severe lattice damage. Accordingly, we proposed a model for pinhole growth under high-temperature He irradiation based on thermal activation diffusion of He. The calculated activation energy for He diffusion in this process was found to be 0.51 eV, which is considerably higher than the results obtained from previous simulations (0.021–0.157 eV) (Zhou et al 2010 Nucl. Fusion
50 115010; Becquart and Domain 2006 Phys. Rev. Lett.
97 1–4; Shu et al 2013 Nucl. Instrum. Methods Phys. Res. B 303 84–6; Fu et al 2021 J. Nucl. Mater.
543 152599). This suggests that extensive defects in the matrix have a significant impact on the diffusion of He in high-temperature environments, which is distinct from diffusion behavior at lower temperatures. However, as the surface temperature further increased beyond the melting point, the melting and re-solidification process nearly completely repaired almost all defects induced by He ion irradiation. The re-solidified grains were characterized by being intact, damage-free, and having lower residual stress. This study establishes a foundation for the quantitative analysis of helium migration mechanisms under high-temperature helium irradiation, which lays the foundation for understanding material structural damage behavior under off-normal operations for ITER.
Compatibility of pronounced detachment with improved confinement on HL-2A tokamak
Authors: Wu Ting , Xu Min , Wang Zhuo , Nie Lin , Wang Zhanhui , Gao Jinming , Chen Yihang , Zhu Yiren , Zhang Yi , Liu Liang , Li Dong , Zhang Kai , Ke Rui , He Xiaoxue , Yang Zengceng , Yu Xin , Wu Na , Huang Zhihui , Yi Kaiyang , Wang Weice , Yan Longwen , Li Yonggao , Long Ting , Wang Renxu , Tian Wenjing , Wang Zhe , Cai Laizhong , Yu Yi 
Published: December 2024

Abstract
This paper investigates the compatibility of pronounced detachment with improved confinement based on the NBI-heated HL-2A L-mode plasma with low-density. Through impurity seeding, radiation becomes higher at plasma edge and causes edge cooling after pronounced detachment. Turbulent transport is examined in detail by experiments and global integrated simulations. Ion dominant turbulent transport decreases at normalized minor radius

ρ
∈

[

0.1
,
0.4

]

,

and ion temperature increases at

ρ
∈

[

0
,
0.8

]

. Edge turbulence and turbulent transport through ion channels decrease significantly, which could result from reduced free energy source due to edge cooling. The reduced edge turbulent transport benefits to decrease the power entering the SOL/divertor. The decreased edge outward transport and increased core electron density and ion temperature make major contributions to the improved plasma confinement after pronounced detachment.
Numerical simulation of a helium plasma–material interaction experiment in GyM linear device through SOLPS-ITER and ERO2.0 codes
Authors: Mombelli F. , Alberti G. , Tonello E. , Tuccari C. , Uccello A. , Baumann C. , Bonnin X. , Romazanov J. , Passoni M. ,   the GyM team
Published: December 2024

Abstract
In this paper, a numerical investigation of plasma–material interaction-relevant helium plasma experimental discharges in GyM linear device is presented, in which SOLPS-ITER and ERO2.0 codes are coupled for plasma background generation and material erosion investigation respectively, with the aim to support the interpretation and complement the available experimental dataset. On the plasma side, simulated profiles are validated against experimental data to provide a realistic plasma background, and the role of He metastable states is assessed for the first time in SOLPS simulations. On the material side, the erosion and deposition effects due to the introduction of the sample-holder in the simulation volume are investigated, now considering also the real stainless steel composition as wall material.
Characterization of Silicon Photomultiplier Photon Detection Efficiency at Liquid Nitrogen Temperature
Authors: Borden S. , Detwiler J.A. , Pettus W. , Ruof N.W. 
Published: December 2024

Abstract
The detection of individual photons at cryogenic
temperatures is of interest to many experiments searching for
physics beyond the Standard Model. Silicon photomultipliers (SiPMs)
are often deployed in liquid argon or liquid xenon to detect
scintillation light either directly or after it has been
wavelength-shifted. Maximizing the photon detection efficiency (PDE)
of the SiPMs used in these experiments optimizes the sensitivity to
new physics; however, the PDEs of commercial SiPMs, although well
known at room temperature, are not well characterized at the
cryogenic temperatures at which many experiments operate them. Here
we present results from an experimental setup that measures the
photon detection efficiencies of silicon photomultipliers at liquid
nitrogen temperature, 77 K. Results from a KETEK PM3325-WB-D0 and a
Hamamatsu S13360-3050CS silicon photomultiplier — of R&D interest
to the LEGEND experiment — exhibit a decrease in photon detection
efficiency greater than 20% at liquid nitrogen temperature relative
to room temperature for 562 nm light.
Enhanced resistance to drug-induced liver injury using glycyrrhetinic acid modified-transferrin nanoparticles loading hepatocyte growth factor
Authors: Cui Xin , Wang Weilin , Cheng Yufeng , Li Shasha , Li Fei 
Published: December 2024

Abstract
(1) Background: drug-induced liver injury (DILI) is a prevalent global health concern that necessitates urgent development of safe and effective treatment options for patients. Drug-carrying nanoparticles have garnered significant attention for disease treatments due to their capacity to enhance drug solubility, provide drug protection, and prolong release duration, thereby improving drug bioavailability and increasing therapeutic efficacy. In this study, we initially present a nanostructured carrier incorporating glycyrrhetinic acid and transferrin. The experiments prove that this carrier can achieve the targeted and prolonged delivery of hepatocyte growth factor (HGF); (2) Methods: HGF was loaded to the nanocarrier successfully with HGF modified glycyrrhetinic acid by ultrasound techniques, and subsequently characterized by particle size, zeta potential, drug loading capacity and encapsulation efficiency, morphology and release kinetics in vitro. The hepatoprotective effects were evaluated by cell proliferation, cellular uptake, apoptosis, ALT and AST levels in three-dimensional spherical liver injury cell models induced by paracetamol and rifampicin; (3) Results: the drug-carrying nanoparticles were synthesized successfully with favorable nanoparticle characteristics. The optimal dosage ratio was determined to be 42.47%. In vitro studies demonstrated that the nanoparticles released HGF continuously, thereby prolonging the action time and effectively protecting liver injury cell models from drug-induced hepatotoxicity. For the two kinds of DILI cell models, the capacity of the drug-carrying nanoparticles to enhance cellular proliferation was superior to that of HGF, magnesium isoglycyrrhizinate and their physical mixture. The results of cell uptake experiments showed that HepG2/C3A cells had a high uptake rate of the drug-carrying nanoparticles, especially evidenced by the enhanced fluorescence signal in the nucleus, indicating the targeted effect mediated by the drug-carrying nanoparticles. The results of flow cytometry, apoptosis, biochemical indexes and cytotoxicity tests exhibited consistency. All in all, the drug-carrying nanoparticles demonstrated a stronger protective effect; (4) Conclusions: the drug-carrying nanoparticles exhibits potential as a therapeutic agent with heptoprotective properties.
Emergence of superradiance in dissipative dipolar-coupled spin systems
Authors: Saha Saptarshi , Ibrahim Yeshma , Bhattacharyya Rangeet 
Published: December 2024

Abstract
In the superradiance phenomenon, a collection of non-interacting atoms exhibits collective dissipation due to interaction with a common radiation field, resulting in a non-monotonic decay profile. This work shows that the dissipative dipolar-coupled systems exhibit an identical collective dissipation aided by the nonsecular part of the dipolar coupling. We consider a simplified dipolar network where the dipolar interaction between the spin-pairs is assumed to be identical. For a suitable choice of the initial condition, the resulting dynamics requires dealing with a smaller subspace that helps extend the analysis to a larger spin network. To include the nonsecular dipolar relaxation, we use a fluctuation-regulated quantum master equation. Moreover, we find that for an ensemble of N spins, the maximum intensity of the radiation exhibits a nearly quadratic scaling (N
2), and the dipolar relaxation time follows an inverse square proportionality (

1

/

N
2

); these two observations help characterize the emergence of superradiance. Our results agree well with the standard results of pure spin superradiance observed experimentally in various systems.