bluuebunny/crossref_metadata_2025_split huggingface dataset:
Using lightweight denoising network to suppress multiple barrage jamming in range‐Doppler domain
Authors: Wu Minghua , Lin Yupei , Cheng Dongyang , Song Dan , Rao Bin , Wang Wei 
Published: October 2024

AbstractBarrage jamming technology poses a significant threat to radar detection functions, yet there is limited research on anti‐multiple barrage jamming using single‐channel radar systems. Addressing this gap, this paper proposes a framework for anti‐multiple barrage jamming based on range‐Doppler domain denoising. This framework first performs pulse compression and Doppler processing on the echo signal to enhance the signal‐to‐jamming ratio. The range‐Doppler spectrum data is then input into a deep denoising network to suppress multiple types of jamming. Additionally, the paper proposes a lightweight deep denoising network comprising a feature extraction module, a jamming suppression module, and a feature fusion module. The feature extraction module preliminarily extracts jamming features using multiple layers of depth‐wise and point‐wise convolution. The jamming suppression module removes noise at various resolutions through a lightweight encoding and decoding structure, effectively suppressing the barrage jamming signal. The feature fusion module uses convolution kernels with different sizes to merge the multiple features output by the jamming suppression module. Simulation results demonstrate that the proposed method effectively suppresses ten types of barrage jamming. Furthermore, a measured dataset is constructed to verify the method’s effectiveness.
Visible-Light-Mediated Strain-Release Radical Spirocyclizations: Access to Functionalized Spirocyclobutanes
Authors: Hari Durga Prasad , Singha Tushar 
Published: October 2024

AbstractSpirocyclobutanes have gained significant attention in medicinal chemistry discovery programs due to their broad spectrum of biological activities and clinical applications. Utilizing ring strain in small molecules to drive organic transformations is one of the most powerful tools in chemical synthesis. Our research group has focused on developing new synthetic strategies enabled by ring strain to construct complex molecules selectively and efficiently. This account summarizes our recent efforts toward the synthesis of a library of functionalized spirocyclobutanes by harnessing the ring strain of bicyclo[1.1.0]butanes. Three spicrocyclization cascades have been developed to incorporate a diverse range of radical precursors into spirocycobutanes.1	Introduction2	Synthesis of Spirocyclobutyl Lactones and -Lactams using Bifunctional Reagents3	Dual Photoredox/Nickel Catalysis for the Synthesis of Spirocyclobutyl Lactams4	Synthesis of Spirocyclobutyl Oxindoles under Photoredox Catalysis5	DFT Studies6	Conclusion
Application of Combined SCIP and Free Fibula Flaps for Reconstruction of a Massive Composite Oromandibular Defect: A Pioneering Approach
Authors: Venkateswar K. Pavan , Kumar Anchit , Mishra Kripa Shankar , Arora Rajan , Prasad Nikhil , Gupta Samarth , Dewan A. K. , Arora Vikas , Yadav Vishal 
Published: October 2024

AbstractResection of advanced oral malignancies often leads to extensive composite tissue defects, which may involve skin, oral mucosa, mandible, and a significant amount of soft tissue. While the free fibula flap remains the primary choice of reconstruction, there are instances where a second flap is necessary for coverage. In such cases, the anterolateral thigh (ALT) flap is commonly employed as a second free flap. We recently utilized a superficial circumflex iliac artery perforator (SCIP) flap in combination with the free fibula flap to reconstruct a large oromandibular defect. This report emphasizes the significance of the SCIP flap and the benefits of combining free flaps, supported by relevant literature.
Catastrophe insurance and solvency regulation
Authors: Goussebaïle Arnaud , Louaas Alexis 
Published: October 2024

AbstractSolvency regulation can prevent insurers from making decisions that are detrimental to policyholders. However, it can also discourage the purchase of insurance for catastrophic risks by causing prohibitive insurance loading due to high reinsurance coverage constraints. This paper examines this delicate trade-off. We show that a solvency regulation allowing some level of insurer default in catastrophic states can be a first-best policy. The default rate of this first-best policy varies depending on the risk line and market conditions. Our numerical simulations indicate that it is possible to closely approximate the first-best policy by implementing a straightforward solvency regulation, considering insurers’ Expected Shortfall and Value at Risk, the reinsurance loading, and policyholders’ risk aversion. Therefore, reforming current solvency regulations in this direction could improve policyholders’ welfare.
Witch, strumpet, maid and saint
Authors: Borrelli Nathalie 
Published: October 2024

Abstract
Shakespeare’s Henry VI, Part 1 depicts Joan of Arc in contradictory terms. This paper discusses the narrative and literary techniques that are used to develop Joan of Arc’s characterisation, particularly the alternation of location between the Anglo-Burgundian and the French-Armagnac camp, the antagonistic staging of Joan of Arc compared to Lord Talbot and Margaret of Anjou, and the contrastive use of epithets, including the shifting positive, neutral or negative dictionary meanings and context-dependent meanings, as per Ray Jackendoff’s theory of Conceptual Semantics. This results in questioning the apparent meaning of words and concepts and thereby also the apparent judgment on the characters themselves, thus ambiguating, questioning, and ridiculing apparent certainties.
The thematic organization of consumer safety instructions in English
Authors: Herriman Jennifer 
Published: October 2024

Abstract
This study investigates how the content of consumer safety instructions is organized in Themes and N-Rhemes and
connected by thematic progressions. The Themes are chiefly directives or representations of the product and its usage. The goal of
safety instructions, on the other hand, i.e. avoiding dangers and their negative outcomes, is mainly represented in the N-Rhemes.
Thematic progressions are frequently linear, which reflects the expert/non-expert relationship between the writers and readers, or
derived, which reflects the somewhat disjointedness of this text type. There are also many Rheme iterations connecting imperative
clauses. In this respect the thematic organization of procedural texts differs significantly from texts where declarative clauses
are predominant.
Complexity and accuracy of verbal morphology in written L2 Italian
Authors: Spina Stefania 
Published: October 2024

Abstract
The present study aims to verify previous findings on the role of proficiency in the degree of complexity and
accuracy of verbal morphemes in written essays from intermediate and advanced L2 Italian learners. In addition, by taking the
perspective of usage-based theories on the distributional properties in the input, it investigates the extent to which contingency
affects morphological complexity and accuracy by the emergence of cue-outcome associations. Hypotheses on the effects of
contingency and proficiency on complexity and accuracy, and on their mutual relationships, are verified by adopting a confirmatory
approach and by using Structural equation modeling. Results support the claims for non-universal mechanisms in the acquisition of
verbal morphology: proficiency does not affect the morphological complexity of learner texts in the same way in inflectionally
rich and poor languages, and the cue-outcome mechanisms of associative learning work to different extents depending on the
inflectional systems of the target languages.
Mediality vs. materiality
Authors: Wildfeuer Janina 
Published: October 2024

Abstract
This contribution adds a multimodal perspective to the notions of medium and mediality in the
context of media linguistics and critically reflects upon their conceptualisations as ‘technical infrastructures’
and/or ‘socially constituted semiotic procedures’. By critically assessing the different understandings of medium in
media linguistics and multimodality research, it will point out advantages and disadvantages of each concept. In a
second step, the definitions will be applied to practical examples of current media artifacts, i.e., a graphic novel
and a digital learning environment. The application will demonstrate the need for a clear distinction between various
levels of description for both semiotic modes as well as media.
“Do you have an idea what this clown is doing?”
Authors: Luginbühl Martin , Schneider Jan Georg 
Published: October 2024

Abstract
This article examines how the medium TV shaped the first presidential and the vice presidential
debate in the 2020 US election. We will argue that different dimensions of human communication, like medium and
semiotic modes, interact and that therefore the use of semiotic modes like spoken language, moving images or movements
of body parts is shaped by the medial procedure from the outset. Media are therefore more than just technical
infrastructures in a narrow sense, they include the constitution of signs, including their materiality and
processuality. The article will illustrate corresponding media procedures and their interdependence with semiotic
modes, analyzing selected sequences of the two debates. The analysis will show how structural aspects of the medium
shape aspects of the conversation (turn-taking, topic management etc.), of the use of the body (gestures, gaze), and
of camera work (split screen, switched screen). In a last section, we will relate our findings to the
conceptualization of ‘medium’ and ‘canvas’ by Bateman et al. (2017).
General relativistic gravitational induction and causal temperatures
Authors: Hakata Jonathan , Goswami Rituparno , Hansraj Chevarra , Maharaj Sunil D 
Published: October 2024

Abstract
In this paper, we describe the process of general relativistic gravitational induction in spherically symmetric spacetimes by defining an energy momentum tensor for the induction process, which is divergence-free and hence conserved. The aforementioned tensor explicitly describes how the matter-free gravity, as measured by the geometrical Weyl curvature, interacts with the matter. This tensor is clearly different from the energy momentum tensor of the standard matter and we transparently show that in spherical symmetry, the Bianchi identities reduce to the conservation laws for these two such energy momentum tensors. Working with a semitetrad covariant formalism in spherically symmetric spacetimes, we then demonstrate the process of constructing a consistent causal thermodynamical picture for the free gravity and matter interaction via the general non-truncated Israel-Stewart heat transport equation. As an illustrative example, we consider the Lemaitre-Tolman-Bondi spacetime to highlight the relationship between the shear and the Weyl curvature in determining the inductive heat flux.
Influence of external AC transverse magnetic field on air arc oscillation patterns and its application in DC forced current zero techniques
Authors: Zhang Yushi , Wu Yi , Sun Hao , Liu Tianxiao , Wu Yifei , Niu Chunping 
Published: October 2024

Abstract
Direct current (DC) circuit breakers are essential for maintaining the stability of the electric energy transmission and safeguarding the power equipment from the damage caused by the fault currents in DC power systems. The characteristics of the switching arc can be utilized in DC forced current zero techniques. This paper investigates the influence of an external alternating current (AC) transverse magnetic field on the oscillation characteristics of air arc. By confining the arc between two insulating walls and applying a transverse AC magnetic field, the arc exhibits ‘bidirectional oscillation’ and ‘unidirectional oscillation’ modes. The effects of magnetic field amplitude and frequency on the air arc oscillation characteristics are analyzed through experiments, from the aspects of the arc voltages and arc motions. It can be found that an external AC magnetic field can stabilize the arc voltage at a specific oscillation frequency. By connecting an inductor–capacitor (LC) branch in parallel with the arc and setting the LC branch’s resonant frequency equal to the arc voltage oscillation frequency, a current resonance process between the arc and the LC branch can be achieved. This resonance facilitates the creation of the arc current zero-crossing point. A test platform based on the arc oscillation characteristics is established for current interruption experiments. For system currents of 1 kA and 3 kA, the arc current zero-crossing time is controlled within 0.41 ms after applying the external AC transverse magnetic field. The experimental results verify the rationality of the proposed DC breaking scheme.
Luminescence properties of dislocations in α-Ga2O3
Authors: Maruzane Mugove , Oshima Yuichi , Makydonska Olha , Edwards Paul R , Martin Robert W , Massabuau Fabien C-P 
Published: October 2024

Abstract
Dislocations in epitaxial lateral overgrown α-Ga2O3 are investigated using hyperspectral cathodoluminescence spectroscopy. The dislocations are associated with a reduction of self-trapped hole-related luminescence (ca. 3.6 eV line) which can be ascribed to their actions as non-radiative recombination sites for free electrons, to a reduction in free electron density due to Fermi level pinning or to electron trapping at donor states. An increase in the intensity of the ca. 2.8 eV and 3.2 eV lines are observed at the dislocations, suggesting an increase in donor–acceptor pair transitions and providing strong evidence that point defects segregate at dislocations.
Research of anomaly detection based on dynamic anomaly detection enhancement framework
Authors: Xiaoxun Zhu , Songwei Weng , Yu Wang , Zhen Yang , Jingyuan Cao , Xiaoxia Gao , Lijiang Dong , Xiang Lin 
Published: October 2024

Abstract
Anomaly detection (AD) plays a crucial role in various fields, from industrial defect inspection to geological detection. However, traditional approaches often struggle with insufficient discriminability and an inability to generalize to unseen anomalies. These limitations stem from the practical difficulty in gathering a comprehensive set of anomalies and the tendency to overlook anomalous instances in favor of normal samples. To address these challenges, we propose a novel Dynamic AD Enhancement Framework, integrating three key innovations: (1) SaliencyAug: An adaptive saliency-guided augmentation method that generates realistic pseudo-samples to enhance learning of rare anomalies, improving model generalization. (2) DynAB: A dynamic attention block that achieves effective multi-level feature fusion while minimizing redundant information, enhancing detection accuracy. (3) DualOM: A dual-head optimization module which employs separate heads for normal and anomalous sample learning, creating more explicit and discriminative decision boundaries. Extensive experiments across multiple real-world datasets demonstrate our framework’s superior performance in detecting a wide range of anomalies, demonstrating 2.4% improvement over state-of-the-art methods.
A cycle slip detection and repair method based on generalized-cross-validation regularization for BDS-3 quad/pent-frequency data
Authors: Zhao Xingwang , Nie Shuai , Chen Jian , Liu Chao 
Published: October 2024

Abstract
Multi-frequency (quad/pent-frequency) observations improve the success rate for BeiDou Navigation Satellite System (BDS-3) cycle slip detection and repair. Three factors are comprehensively considered: the combination of observation wavelength, the amplification factor of ionospheric delay, and the insensitivity, to select the optimal combination coefficients for BDS-3 multi-frequency cycle slip detection. Due to the ill-conditioned equation in multi-frequency cycle slip repair, the generalized-cross-validation regularization auxiliary LAMBDA method is proposed. To validate the effectiveness of the proposed detection and repair method under different observation environments, two stations are selected for the test. Using real data, the effectiveness of the selected optimal combination coefficients and the proposed method are tested. The conclusions are as follows: (1) for quad-frequency, one geometry-free and ionosphere-free (GFIF) combination [−1, 2, −4, 3] and three linearly independent geometry free carrier phase (GF) combinations [−1, 1, 0, 0], [−1, 1, 1, −1], and [−1, 2, −1, 0] are employed to detect cycle slips. For pent-frequency, one GFIF combination [−2, 2, 1, −2, 1] and four linearly independent GF combinations [−1, 1, 0, 0, 0], [0, 0, −1, 1, 0], [0, 0, −1, 0, 1], and [0, −1, 1, 1, −1] are adopted for cycle slip detection. (2) The algorithm proposed in this paper has been demonstrated to achieve a quad/pent-frequency cycle slip detection success rate of 99.99% and 100% in the coastal environment, and both 100% for quad/pent-frequency detection success in the urban environment. (3) The success rate of repair were 99.27% and 99.94% for the coastal stations, and 99.83% and 100% for the urban stations, respectively. The proposed algorithm offers a dependable approach for the identification and rectification of multi-frequency cycle slips, while also providing a point of reference for the future advancement of multi-frequency cycle slip repair techniques.
Topological phase transitions via attosecond x-ray absorption spectroscopy
Authors: Mosquera Juan F P , Cistaro Giovanni , Malakhov Mikhail , Pisanty Emilio , Dauphin Alexandre , Plaja Luis , Chacón Alexis , Lewenstein Maciej , Picón Antonio 
Published: October 2024

Abstract
We present a numerical experiment that demonstrates the possibility to capture topological phase transitions via an x-ray absorption spectroscopy scheme. We consider a Chern insulator whose topological phase is tuned via a second-order hopping. We perform time-dynamics simulations of the out-of-equilibrium laser-driven electron motion that enables us to model a realistic attosecond spectroscopy scheme. In particular, we use an ultrafast scheme with a circularly polarized IR pump pulse and an attosecond x-ray probe pulse. A laser-induced dichroism-type spectrum shows a clear signature of the topological phase transition. We are able to connect these signatures with the Berry structure of the system. This work extend the applications of attosecond absorption spectroscopy to systems presenting a non-trivial topological phase.
True pinch mode of magnetorheological fluids
Authors: Sapiński Bogdan , Macháček Ondřej , Kubík Michal , Gołdasz Janusz , Žáček Jiří , Bańkosz Wojciech 
Published: October 2024

Abstract
Magnetorheological (MR) fluids are representatives of smart materials. They react to magnetic fields by developing a yield stress. The effect has been employed in real-world applications such as automotive chassis systems or optical finishing. By convention, MR devices can be operated in at least one of the fundamental modes: flow, shear, squeeze, gradient pinch of which the former has been the least studied and understood. In pinch mode, the material in the flow channel is exposed to non-uniform magnetic fields in the direction parallel to fluid flow. As a result, only the volume of MR fluid near the channel walls are energized to modify the particular material property (yield stress). The result is the channel’s effective diameter change. The behavior of the material in pinch mode is unique and unseen in the other controllable fluids. To study the material’s characteristics in the specific mode, the authors developed a novel circuit concept for energizing the material in an effort to achieve the ‘true-zero’ pinch mode magnetic behavior. Contrary to the existing pinch mode valve concepts, the concept valve allows to achieve zero magnetic flux density in the center of the flow channel regardless of the current level. To test the hypothesis a prototype valve was modeled, manufactured and tested across a range of external (flow rate, current/magnetic flux) stimuli. The obtained results yield sufficient evidence proven by results of magnetic simulations to support the underlying hypothesis. The experimental results illustrate the pinch mode type behaviour, i.e. the slope change in the pressure vs flow rate characteristics.
Phase transition analysis of the Potts-SOS model with spin set {−1,0,+1} on the Cayley tree
Authors: Akın Hasan 
Published: October 2024

Abstract
Recently, the Potts-SOS model on Cayley trees was studied using the Kolmogorov consistency condition to investigate the existence and properties of Gibbs measures. The author previously examined the thermodynamic properties of the one-dimensional Potts-SOS model on the positive natural number lattice

N

, demonstrating the absence of phase transitions [Akin H, Phys. Scr. 99 (2024), 055 231]. In this study, we apply the cavity method to explore the non-uniqueness of Gibbs measures for the Potts-SOS model with spins {–1, 0, + 1} on a second-order semi-infinite Cayley tree. We address the phase transition problem by analyzing the model’s iterative equation system and perform stability analysis at fixed points to determine regions where phase transitions occur.
A study on analytical solutions of one of the important shallow water wave equations and its stability analysis
Authors: Deniz H Arzu , Özkan E Mehmet , Özkan Ayten 
Published: October 2024

Abstract
The present research uses the modified

w

g

-expansion technique to give analytical solutions for the nonlinear time fractional integro-differential Kadomtsev-Petviashvili (KP) hierarchy equation with beta fractional derivative. The modified

w

g

-expansion technique is an important method for finding analytical solutions to nonlinear equations. The suggested approach produces three sorts of solutions: trigonometric, hyperbolic, and rational. These answers have been discovered with the aid of a software tool. Additionally, stability analysis of observed governing model solutions is used to validate scientific calculations. Furthermore, the 3-dimensional, contour, and 2-dimensional images are provided for a better understanding of the behavior of the solutions.
Study of lanthanide based Ln2MgSe4 (Ln = Er, Pm) spinels for spintronic and optoelectronic applications
Authors: Murtaza Sadia , Ishfaq Mudassir , Aldaghfag Shatha A , Yaseen Muhammad , Nasarullah  , Hamza Muhammad 
Published: October 2024

Abstract
Herein, the full potential linearized augmented plane wave (FP-LAPW) method within the framework of density functional theory (DFT) is used to examine the physical features of Ln2MgSe4 (Ln = Er, Pm) spinel selenides. Exchange correlation energies are estimated through modified Becke–Johnson potential (mBJ). Band structures (BS) and density of states (DOS) data proved that Er2MgSe4 is ferromagnetic (FM) semiconductor while Pm2MgSe4 is half metallic (HFM) ferromagnetic in nature. The Er-f contributed majorly to the vicinity of Fermi level for both compounds. The structural stability is determined through calculating the tolerance factor and geometry optimization, while thermodynamical stability has been realized by computing the formation enthalpy. Furthermore, various optical parameters have been computed which describe the considered materials’ response to incident light. Our study explored the physical properties of two Ln based spinels which are found to have potential for being used in various optoelectronic and spintronic devices.