bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chirped and chirp-free optical soliton solutions for stochastic long-short wave resonant equations with multiplicative white noise
Authors: M E Zayed Elsayed , M M Saad Basel , Arnous Ahmed H , Secer Aydin , Esen Handenur , Bayram Mustafa 
Published: December 2024

Abstract
This article introduces a novel governing model characterized by stochastic long-short wave resonant equations with multiplicative white noise applicable in fields such as telecommunications and climate modeling. The study aims to explore chirped and chirp-free soliton solutions within this framework. Using Jacobi's elliptic function method as our primary methodology, we have successfully derived various soliton solutions, including solitary waves, singular solitons, and dark and bright soliton forms which can be relevant in optical communication and nonlinear optics. Significantly, our analysis has facilitated the extraction of both chirped and chirp-free solutions applicable to the model, marking a notable advancement in soliton research. Introducing this governing model is a pioneering endeavor in the field, distinguished by its ability to model the resonance interaction between long and short waves under the influence of multiplicative white noise. This aspect holds profound implications for the understanding and application of wave dynamics in stochastic environments such as in meteorology and fluid dynamics. To underscore our findings, the manuscript includes 3D and 2D graphical representations, effectively illustrating the impact of white noise on the wave profiles of the derived solitons. Our study broadens the theoretical landscape of soliton solutions and presents a significant step forward in practically examining wave resonance phenomena under stochastic conditions.
Traversable wormholes induced by stress energy conservation: combining Casimir
energy with a scalar field
Authors: Garattini Remo , Tzikas Athanasios G. 
Published: December 2024

Abstract
We investigate possible manifolds characterizing traversable wormholes in the presence of a scalar field minimally coupled to gravity, which has both kinetic and potential energy. The feature of traversability requires the violation of the null energy condition, which, in turn, signals the existence of exotic matter with negative energy density. To achieve this, we introduce a hypothetical Casimir apparatus with plates positioned either at a parametrically fixed or radially varying distance. A consistent set of field equations requires the introduction of an auxiliary field composed solely of pressure terms, which we interpret as the gravitational back-reaction of the traversable wormhole to the original source. Interestingly, the only case that appears to avoid the need for such an auxiliary field involves a scalar field with potential energy, combined with a Casimir device with fixed plates.
Gravitational waves from patterns of electroweak symmetry breaking: an effective perspective
Authors: Cai Rong-Gen , Hashino Katsuya , Wang Shao-Jiang , Yu Jianghao 
Published: December 2024

Abstract
The future space-borne gravitational wave (GW) detectors would provide a promising probe for the new physics beyond the standard model that admits the first-order phase transitions. The predictions for the GW background vary sensitively among different concrete particle physics models but also share a large degeneracy in the model buildings, which motivates an effective model description on the phase transition based on different patterns of the electroweak symmetry breaking (EWSB). &#xD;In this paper, using the scalar $N$-plet model as a demonstration, we propose an effective classification for three different patterns of EWSB: (1) radiative symmetry breaking with classical scale invariance, (2) Higgs mechanism in generic scalar extension, and (3) higher dimensional operators.&#xD;We conclude that a strong first-order phase transition could be realized for (1) and (2) with a small quartic coupling and a small isospin of an additional $N$-plet field for the light scalar field model with and without the classical scale invariance, and (3) with a large mixing coupling between scalar fields and a large isospin of the $N$-plet field for the heavy scalar field model.
Modulation of Bessel-like vector vortex beam using the resonant magneto-optical effect in rubidium vapor
Authors: Ma 马 Yan 燕 , Yang 杨 Xin 欣 , Chang 常 Hong 虹 , Cao 曹 Ming-Tao 明涛 , Zhang 张 Xiao-Fei 晓斐 , Dong 董 Rui-Fang 瑞芳 , Zhang 张 Shou-Gang 首刚 
Published: December 2024

Abstract
The Bessel-like vector vortex beam (BlVVB) has gained increasing significance across numerous applications. However, its practical application is restricted by manufacturing difficulties and polarization manipulation. Thus, the ability to manipulate its degrees of freedom is highly desirable. In this paper, the full-domain polarization modulation of BlVVB within a hot atomic ensemble has been investigated. We begin with the theoretical analysis of the resonant magneto-optical effect of atoms with a horizontal linear-polarized beam and experimentally demonstrate precise manipulation of the polarization state across the entire domain of the BlVVB, achieving an error margin of less than 3° at various cross-sectional points. Our study provides a novel approach for the modulation of BlVVB based on atomic media, which holds potential applications in sensitive vector magnetometers, optical communications, and signal processing.
Optimal conditions for efficient ion acceleration and neutron production in deuterium gas-puff z-pinches
Authors: Klir D. , Jackson S.L. , Cikhardt J. , Cikhardtova B. , Kubes P. , Malir J. , Munzar V. , Novotny J. , Rezac K. 
Published: December 2024

Abstract
Deuterium gas-puff z-pinches are researched primarily as efficient sources of DD fusion neutrons. The first experiment with a deuterium gas jet was carried out in 1978 (Shiloh et al 1978 Phys. Rev. Lett.
40 515518). Since then, several D2 gas-puff experiments have been performed on various pulsed-power generators. The highest, so far published, DD neutron yields of

4
×

10

13

were observed on the Z machine at Sandia National Laboratories around 2005 (Coverdale et al 2007 Phys. Plasmas
14 022706). More recently, z-pinch experiments with a plasma-shell on a deuterium gas puff were carried out on the GIT-12 higher-impedance pulsed-power generator at 3 MA currents. On GIT-12, unique results were high neutron and ion energies, which approached 60 MeV. Comparison of deuterium gas-puff experiments on different generators allows the identification of the parameters essential for optimizing neutron production. These parameters include the optimal mass, preionization, short deuterium gas-injection time, and zippering towards a cathode. Neutron yields appear to depend not only on a current, but also on other parameters of a generator, such as an impedance and the energy stored in a capacitor bank. Our conclusions regarding the optimal conditions were tested on the Hawk generator (NRL, Washington, DC). At a current of 0.7 MA, Hawk accelerated deuterons up to 15 MeV producing one neutron pulse with the yield of the order of 1010 and a broad energy spectrum in the axial and radial direction. These results show that ion acceleration mechanisms in deuterium gas-puff z-pinches could be very efficient and attractive, with a variety of potential applications in high-energy-density physics, materials science, and controlled thermonuclear fusion research.
Research on the design methods of passive and active actuators based on energy flow
Authors: Shi Yujie , Wang Xinjie , Ding Yujiao , Li Qi 
Published: December 2024

Abstract
This paper discusses the design and reliability analysis of passive and active state actuators based on energy flow. For the passive state actuator, the structural design and performance evaluation of the recoil safety mechanism of the single-degree-of-freedom inertia cylinder are introduced in detail, and the reliability judgment criteria are proposed through the analysis of the force and energy of the inertial cylinder in the launch stage and the drop impact stage. For the active state actuator, the design of a large-displacement drive device driven by multiple V-type electrothermal drives is proposed, its reliability in different environments is analyzed, and the performance is verified using the perspective of energy flow. The method of applicability judgment is given.
Asynchronous motor fault diagnosis method based on BiLSTM network
Authors: Liu Chencheng , Zhao Aiming 
Published: December 2024

Abstract
Asynchronous motor stator short-circuit faults can pose a great threat to the production and operation of asynchronous motors. To identify the short-circuit faults and recover the losses in time, this paper establishes a model of a three-phase asynchronous motor in Simulink by using MATLAB, and simulations are carried out under various fault conditions. The time and frequency domain characterization of signals are extracted by fast Fourier transforms (FFT) and input into the bidirectional long short-term memory (BiLSTM), for training and learning. The experiments show that the overall accuracy of the method in terms of fault identification rate is 96.19%, and it provides an effective solution for the diagnosis of this fault.
Research on adaptive washout algorithm based on workspace
Authors: Sun Dayuan , Chen Yuntong , Han Zheng 
Published: December 2024

Abstract
Since the classical washout algorithm does not involve the range of the robot’s motion, it may be beyond the motion limit during the robotic motion. In order to solve this problem, a tandem robot workspace is involved in the washout algorithm cost function. So, the algorithm can make the flight simulator’s range of motion within the motion limit. Input a signal for simulation, it can be found that this algorithm can achieve more realistic motion simulation in a small range. In summary, the improvement of the adaptive algorithm in this paper can achieve better dynamic simulation effects.
Robust adaptive fuzzy control for uncertain robotic manipulators with full state constraints
Authors: Wang Junjie , Zhao Boyang , Xue Ruxin , Tang Xin , Yang Chen , Li Jianwen , Gao Zhiwen 
Published: December 2024

Abstract
To address the problem of trajectory tracking control of robotic manipulators in the presence of system uncertainties, state constraints, and external disturbances, a robust adaptive fuzzy control method based on the obstacle Lyapunov function is proposed. Firstly, the uncertainty caused by measurement errors within the robot manipulator model is approximated by a fuzzy logic system (FLS), and secondly, the external perturbations existing in the model are effectively handled with the help of a bounded estimation method. In addition, the constraints on joint positions and joint velocities are guaranteed not to be violated by utilizing the barrier Lyapunov function.
On braid statistics versus parastatistics
Authors: Toppan Francesco 
Published: December 2024

Abstract
I report the recent advances in applying (graded) Hopf algebras with braided tensor product in two scenarios: i) paraparticles beyond bosons and fermions living in any space dimensions and transforming under the permutation group; ii) physical models of anyons living in two space-dimensions and transforming under the braid group. In the first scenario simple toy models based on the so-called 2-bit parastatistics show that, in the multiparticle sector, certain observables can discriminate paraparticles from ordinary bosons/fermions (thus, providing a counterexample to the widespread belief of the “conventionality of parastatistics” argument). In the second scenario the notion of (braided) Majorana qubit is introduced as the simplest building block to implement the Kitaev’s proposal of a topological quantum computer which protects from decoherence.
On the Representative Series
Authors: Hoang Ngoc Minh V 
Published: December 2024

Abstract
For factorizing representative (or rational) series, with coefficients in a commutative ring A containing ℚ, we examine various products such as concatenation, shuffle and its ϕ-deformations, … (and their co-products) defined on the free monoid which are such that their associated bialgebras are isomorphic to the Sweedler’s dual, for A being a field K.
Essential spectrum of the double layer potential on curves with cusps
Authors: Karlovich Yu 
Published: December 2024

Abstract
The essential spectrum of the double layer potential related to the Dirichlet problem on a domain whose boundary is a star-like curve with cusps is studied in the Lebesgue space setting. First, the solvability of such Dirichlet problem on the unit disc and the related integral representation are analyzed. Applying a reduction to singular integral operators with complex conjugation on star-like curves with cusps, and the theory of Wiener-Hopf operators and Mellin convolution operators, the essential spectrum of the double layer potential is established.
Application of quasicrystals to data processing
Authors: Nesterenko Maryna , Pošta Severin 
Published: December 2024

Abstract
We propose a data processing method based on properties of quasicrystals and apply it to bitmap images. The method uses the mapping between the physical and internal spaces of a quasi-crystal to uniformly distribute the part of data that is lost in the transmitting or storing processes. At the same time, it is possible to unambiguously restore the rest of the data.
The main advantages are strict aperiodicity of discrete sets and everywhere discontinuous property of the mapping as well as the speed of computation, simplicity of implementation and a straightforward possibility of extending the method to encryption of higher dimensional data. Several examples of construction of quasicrystals and examples of image processing are given.
Quantum state preparation in Jaynes-Cummings lattices
Authors: Tian Lin , Govindarajan Anuvetha , Parajuli Prabin , Cai Kang 
Published: December 2024

Abstract
One of the key questions in quantum information is the preparation of desired multipartite quantum states with high fidelity. Adiabatic evolution has been widely explored to achieve state preparation in quantum many-body systems. However, in noisy quantum systems, the adiabatic approach faces a dilemma: either extending the evolution timescales to reduce diabatic transitions or shortening the timescales to mitigate decoherence effects. Various quantum control approaches have been studied to resolve this dilemma. In a few recent works, we utilized Jaynes-Cummings (JC) lattices as a platform to investigate the potential of several quantum control techniques in preparing quantum many-body states, including the optimized adiabatic evolution approach, the quantum optimal control technique, and quantum shortcuts to adiabaticity. Here we first give an overview of our previous results on utilizing quantum optimal control in JC lattices with unit filling and utilizing local counterdiabatic driving in JC lattices with a single excitation. Then we present our results on the energy costs and energy fluctuations in these approaches. Our studies give insights into the implementation of different approaches in practical quantum devices and the connection between the energy costs and the quantum speed limit in preparing desired quantum many-body states for quantum simulation and quantum computation.
Study on the trouser tearing characteristics of airship skin film materials
Authors: Liu Wenjie , Xu Xian , Liu Longbin , Shen Guoji 
Published: December 2024

Abstract
In this paper, the tearing properties of Kevlar fiber-reinforced lightweight composite panels are thoroughly investigated through a combination of experimental and theoretical analysis. The research focuses on the tearing strength of airship skin materials, especially on the trouser-tearing behavior of Kevlar materials. By establishing a physical model of a “triangle-like region”, the change of material morphology during trouser tearing is analyzed, and a quadratic model is proposed to describe the tensile elongation of the weft yarn bundle. In the experimental part, the model’s accuracy was verified by the trouser tearing test, and the elastic modulus of the skin material was calculated by generating the tensile force-displacement curve with super test software. The test results show that the material’s maximum tensile load capacity and minimum tensile load capacity. Eventually, by comparing the experimental data with the simulation results, the validity of the established physical model is verified, which provides an important reference for the design and selection of the skin material of the airship.
Simulation study of aerodynamic parameters of small unmanned aerial vehicle (UAV) dropped munitions
Authors: Liang Zhengang , Zhu Haowu , Hou Yunhui , Lu Jiashu , Bi Mingxue 
Published: December 2024

Abstract
Based on the method of computational fluid dynamics, fluent software is used to simulate and calculate the aerodynamic parameters of small unmanned aerial vehicle projectiles. The drag coefficient, lift coefficient, and pitching moment coefficient of the projectile under different angles of attack and different throwing velocities are obtained by establishing a three-dimensional model of the projectile, dividing the computational grid, and setting up the relevant initial conditions. The results are analyzed, and the results of the computation can provide a basis for the calculation of the ballistic trajectory of the projectile.
Experimental research on heat dissipation by microchannel phase transition
Authors: Fang Kun , Liu Zeliang , Zhang Fangju , Tan Gongli 
Published: December 2024

Abstract
Given the characteristics of some missile-borne electronic equipment, such as narrow space, high heat flux, limited power supply, and high reliability in a short time, the idea of phase change heat dissipation is proposed, absorbing a large amount of heat from electronic components through the vaporization phase change of working fluid, to ensure its working performance. The heat dissipation device is a cold plate for micro-channel phase change heat dissipation. Because it is difficult to study phase-change heat dissipation by simulation calculation, the experimental scheme is designed. A set of experimental systems that can not only simulate the working mode of the cold plate in high altitude and low-pressure environments but also carry out multi-parameter exploration is built with conventional and simple devices and instruments. Through extensive and repeated experiments, it has been concluded that: for the same mass of phase change working medium, the smaller the pressure difference between the working medium in the cold plate and the cold plate outlet is, the longer the temperature control time of the cold plate is. When the surface heat load of the cold plate is 400 W, the mass of the phase change working medium is 270 g, and the cold plate temperature control time is up to 10 min. When the working medium of phase transformation is 35% ethanol solution, the cooling and temperature equalization effect of a cold plate are the best, and the maximum temperature of the cold plate surface is stable between 70±1°C for a long time.
Combining climate models and observations to predict the time remaining until regional warming thresholds are reached
Authors: Barnes Elizabeth A , Diffenbaugh Noah S , Seneviratne Sonia I 
Published: December 2024

Abstract
The importance of climate change for driving adverse climate impacts has motivated substantial effort to understand the rate and magnitude of regional climate change in different parts of the world. However, despite decades of research, there is substantial uncertainty in the time remaining until specific regional temperature thresholds are reached, with climate models often disagreeing both on the warming that has occurred to-date, as well as the warming that might be experienced in the next few decades. Here, we adapt a recent machine learning approach to train a convolutional neural network to predict the time (and its uncertainty) until different regional warming thresholds are reached based on the current state of the climate system. In addition to predicting regional rather than global warming thresholds, we include a transfer learning step in which the climate-model-trained network is fine-tuned with limited observations, which further improves predictions of the real world. Using observed 2023 temperature anomalies to define the current climate state, our method yields a central estimate of 2040 or earlier for reaching the 1.5 °C threshold for all regions where transfer learning is possible, and a central estimate of 2040 or earlier for reaching the 2.0 °C threshold for 31 out of 34 regions. For 3.0 °C, 26 °C out of 34 regions are predicted to reach the threshold by 2060. Our results highlight the power of transfer learning as a tool to combine a suite of climate model projections with observations to produce constrained predictions of future temperatures based on the current climate.
Measurement of wear on additive manufactured surfaces via precision metrology and image processing techniques
Authors: Güngör Hikmet Ayberk , Sagbas Binnur 
Published: December 2024

Abstract
Additive manufacturing (AM) is rapidly developing technology which provide opportunity to generate 3D complex geometries without using any conventional tools. However, it was initially used frequently for rapid prototyping, it has now begun to be used for manufacturing functional machine parts. Wear is a critical phenomenon encountered in functional engineering systems and must be well understood for developing predictive and preventive approach. In this study, it was aimed to determine measurement procedure for additive manufactured AlSi10Mg metal part by using both standard and new technology wear measurement methods such as gravimetric, 2D and 3D optical profilometry, x-ray computed tomography (X-CT) and image processing. Minimum wear volume was measured by gravimetric method as 0,9268 mm3 while maximum was recorded as 1,6403 mm3 by 2D mechanical profilometer. X-CT and image processing methods wear volumes were close to each other and lie between gravimetric and 2D profilometric methods. This study aimed to provide basic understanding about the differences between the wear measurement methods on AM parts and serve further studies on measuring, predicting and preventing wear with more technological methods.
The Sublime
Authors: Kennedy Meegan 
Published: December 2024

Abstract
Victorians often reworked existing tropes of wonder in order to frame the emotional experiences of microscopy within established epistemological structures such as the sublime, and push back against criticism of the microscope, promoting it instead as a difficult but valuable pursuit. Microscopists revise Kantian and Burkean versions of the sublime. Where traditionally the sublime is found in huge landscape formations or through a telescope aimed at the heavens, the microscopists remixed reason, imagination, pleasure, and terror (as in counting the uncountable) into a delightfully vertiginous horror at the vastness of the very small, and assertions of its mystery, majesty, and even beauty. With the microscopical sublime, minuteness is refigured as invisibility; diatoms (in many respects quite common and ordinary) are recognized to be breathtakingly infinite in number, space, and time, invoking multiple-world models.