bluuebunny/crossref_metadata_2025_split huggingface dataset:
Direct model predictive torque control for permanent magnet synchronous motor with voltage vector parallel optimisation algorithm
Authors: Qiao Shejuan , Huang Jin , Xu Yuhao , Song Ke 
Published: February 2025

AbstractThe multi‐vector‐based direct model predictive torque control (DMPTC) inherits the high control precise of vector control and the fast dynamic response of model predictive control. However, the cascade optimisation mode is difficult to guarantee the global optimal performance of the voltage vector (VV) combination, and results in invalid VV time duration in some cases as well as high calculation complexity. In this paper, for the predictive control of permanent magnet synchronous motors widely used in electric propulsion aircraft, a parallel optimisation DMPTC method is proposed to ensure that the multi‐vectors applied are all optimal in each control cycle. The optimal double vectors are directly chosen locating the sub‐region of the sector of reference VV. With only the absolute value of stator VV error term, the time duration is always in the valid range and robust to motor parameters. In addition, a cost function with a single control objective is designed to control the torque and flux cooperatively, eliminating the stator flux weighting factor and reducing the computation burden. The proposed method is compared with the recent predictive torque control strategies. The experimental results confirm the effectiveness of the proposed method in improving the dynamic response and steady‐state performance while reducing computation burden and complexity.
Consumer perceptions and purchasing behavior of sustainable insurance products
Authors: Jahnert Jonas R. , Schmeiser Hato , Zehnle Meike 
Published: February 2025

Abstract
Insurers are beginning to change their business practices and add sustainable attributes to their insurance products. However, little is known about consumers’ reactions to such sustainable attributes in insurance contracts. In three surveys, of which the main study is incentive compatible, we investigate how sustainable attributes affect consumers’ purchase decisions and examine the mediating roles of trust, quality, brand image and perceived consumer effectiveness on purchase intentions. Our results provide converging evidence of a strong preference for sustainable insurance products. Surprisingly, this preference exists even at higher price levels. This can be explained by improved perceptions of the insurance company in terms of brand equity, product quality, and perceived consumer effectiveness.
Word processing through lexical decision in Brazilian Portuguese
Authors: Estivalet Gustavo , Ferrari-Neto José , Minussi Rafael , Villalva Alina 
Published: February 2025

Abstract
This study investigates word processing in Brazilian Portuguese, focusing on blends, which juxtapose or overlap
(W)ords and/or (C)lips (e.g. portunhol = (portu)guês ‘Portuguese’ + espa(nhol)
‘Spanish’). Blends present intriguing theoretical and empirical challenges to models of morphological analysis, morphological
processing, lexical access, and the mental lexicon. Most research on blends has been conducted in languages other than Portuguese.
This study addresses this gap by exploring the processing of blends in Brazilian Portuguese through a behavioral lexical decision
experiment. We manipulated blends in constituent structure and grammatical structure, considering (H)ead and (M)odification.
Additionally, we compared blends against words with various morphological structures, such as derived complex words containing
prefixes (e.g., [des]acordo ‘disagreement’) or suffixes (e.g., cozinh[eiro] ‘cook’), and
monomorphemic simplex words. We also included simplex and complex pseudowords (e.g., [acont]arago;
dador[eiro]) and nonwords (e.g., sfaricrelj) in the experiment. Accuracy and reaction time
results suggest that blends are accepted and processed differently from simplex and complex words, resembling pseudowords. This
study contributes to a deeper understanding of blend description and processing, providing valuable insights into lexical access,
enhancing theoretical and empirical comprehension of morphological processing.
Time-resolved measurements of the E-H transition in a microwave driven ICP source
Authors: Porteanu Horia-Eugen Eugen , Stefanovic Ilija , Klute Michael , Awakowicz Peter , Brinkmann Ralf Peter , Heinrich Wolfgang 
Published: February 2025

Abstract
The transition dynamics from the electrostatic to electromagnetic (E-H) coupling in a 2.45 GHz excited inductively&#xD;coupled plasma (ICP) source is investigated using a set of microwave time-resolved records at different frequencies.&#xD;This method, coming from semiconductor physics, has been newly adapted for plasma investigations. Nitrogen and&#xD;oxygen plasmas have been analyzed in the range 20 - 1000 Pa with a constant excitation power of 40 W. With a&#xD;resolution better than 100 ns, one can identify, depending on pressure, the coexistence of the E and H modes, a hybrid&#xD;EH mode, and, in the case of oxygen plasma, the transition from negative to positive ions. The E-H transition time&#xD;increases with pressure.
Room Temperature RF-Sputtered Cu2O Thin Films: A Promising Hole Transport Layer for Antimony Chalcogenide Solar Cells.
Authors: Mijangos-Alonzo Pedro , Vigil-Galán Osvaldo , Acosta Milenis , Hernández Castillo R. , Nicolás Marín Miriam Marmara , RIECH INES 
Published: February 2025

Abstract
In this work, Cu2O thin films were deposited on glass by reactive sputtering at room temperature, varying the sputtering power and the oxygen partial pressure in the chamber. The thin films' electrical resistivity, optical, morphological, and structural properties were studied, and the results are presented and discussed. Single-phase Cu2O thin films were optimized using 120 W sputtering power and 0.7x10-6 bar of oxygen partial pressure. These deposition conditions were used to prepare copper oxide thin films onto an Sb2(S,Se)3 layer. The resulting Cu2O with its low electrical resistivity (~10^1 Ω-cm), comparable to the lowest Cu2O values ​​obtained with different growth techniques, and its smooth and compact morphology, providesinsights into its potential use as a hole transport layer in Sb2(S,Se)3 solar cells.
Spatiotemporal chirped Laguerre complex-variable-function Gaussian wave packets in a strongly nonlocal nonlinear medium
Authors: Wang Rui , Liu Zhirong 
Published: February 2025

Abstract
Evolutionary of spatiotemporal chirped Laguerre complex-variable-function Gaussian (CLCG) wave packets in a strongly nonlocal nonlinear medium (SNNM) is investigated for the first time. Solution of the spatiotemporal CLCG wave packets in a SNNM is obtained by the separate variable method. Results demonstrate that the evolution properties of the targeted CLCG wave packets are dependent on the disparate distribution parameter and chirp parameter of the wave packets. The stabilities of the wave packets under different perturbation scenarios are further analyzed. In addition, the Poynting vector of the CLCG wave packets in propagation is investigated, and it shows that the direction of energy flow corresponds to the rotation of the wave packets. The effect of wave packet rotation on CLCG wave packet evolution is described. The gradient and scattering forces of the CLCG wave packet are also discussed. Finally, the nonlinearity of the CLCG wave packet and the energy transfer efficiency are discussed. Results obtained in this paper could provide a new idea for the modulation and control of multidimensional optical fields.
Non-locality in quadrupolar gravitational radiation
Authors: Capozziello S. , Capriolo M. , Carleo A. , Lambiase G. 
Published: February 2025

Abstract
General Relativity suffers for two main problems which have not yet been overcome: it predicts spacetime singularities and cannot be formulated as a perturbative renormalizable theory. In particular, many attempts have been made for avoiding singularities, such as considering higher order or infinite derivative theories. The price to pay in both cases is to give up locality and therefore they are known altogether as non-local theories of gravity. In this paper, we investigate how to recognize the presence of non-local effects by exploiting the power emitted by gravitational waves in a binary system in presence of non-local corrections as R□-1
R to the Hilbert-Einstein action. After solving the field equations in terms of the source stress-energy tensor T

μν
and obtaining the gravitational wave stress-energy pseudo-tensor, T

μν
, we find that the General Relativity quadrupole formula is modified in a non-trivial way, making it feasible to find a possible signature of non-locality. Our final results on the gravitational wave stress-energy pseudo-tensor could also be applied to several astrophysical scenarios involving energy or momentum loss, potentially providing multiple tests for non-local deviations from General Relativity. We finally discuss the detectability of the massless transverse scalar mode, discovering that, although this radiation is extremely weak, in a small range around the model divergence, its amplitude could fall within the low-frequency Einstein Telescope sensitivity.
SpectrAx: spectral search of axion-like particles using multi-band observations of galaxy clusters from SKA, SO, CMB-S4 and eROSITA
Authors: Mehta Harsh , Mukherjee Suvodip 
Published: February 2025

Abstract
The existence of axions or Axion-Like Particles (ALPs) has been predicted by various Beyond Standard Model (BSM) theories, and the proposed photon-ALP interaction is one of the ways to probe them. Such an interaction will lead to photon-ALP resonant conversion in galaxy clusters, resulting in a polarized spectral distortion in the CMB along the cluster line of sight. The estimation of this signal from galaxy clusters requires an estimation of their electron density and magnetic field profiles, as well as their redshifts. We have developed a new Bayesian framework SpectrAx that can use observations from different electromagnetic bands such as radio, CMB, optical, and X-ray to infer the astrophysical properties of a galaxy cluster, such as cluster its redshift, electron density and magnetic field, along with the BSM physics such as ALPs.
We use simulated redshifts in our analysis, but that can be obtained by cross-matching with optical surveys having overlapping sky regions with the galaxy clusters. Also, we use radial profiles that are motivated from observations of galaxy clusters at low redshifts. By using the simulated data corresponding to the ALP mass of 10-14 eV for upcoming CMB surveys such as Simons Observatory (SO) and CMB-S4 in combination with Square Kilometer Array (SKA) and extended ROentgen Survey with an Imaging Telescope Array (eROSITA) we demonstrate the capability in accurately inferring the ALPs coupling strength along with the radial profile of electron density and magnetic field from galaxy clusters. The application of this framework to the data from future surveys by combining SKA+SO+eROSITA and SKA+CMB-S4+eROSITA will make it possible for the first time to explore both astrophysics and BSM physics from low-redshift galaxy clusters using a multi-band approach.
Relaxing limits from Big Bang Nucleosynthesis on Heavy Neutral Leptons with axion-like particles
Authors: Deppisch Frank F. , Gonzalo Tomás E. , Majumdar Chayan , Zhang Zhong 
Published: February 2025

Abstract
Heavy neutral leptons (HNLs) are constrained by requirements of Big Bang Nucleosynthesis (BBN) as their decays significantly impact the formation of the primordial elements. We propose here a model where the primary decay channel for the HNLs is to an axion-like particle (ALP) and a neutrino. Consequently, HNLs can decay earlier and evade the BBN bound for lower masses, provided the ALPs themselves decay considerably later. Further cosmological and astrophysical constraints limit severely the range of validity of the ALP properties. We find that a new parameter region opens up for HNLs with masses between 1 MeV and 1 GeV, and active-sterile neutrino mixing strengths between 10-9 and 10-6 that is consistent with constraints and can be probed in future searches. In such a scenario, current bounds as well as sensitivities of future direct HNL searches such as at NA62 and DUNE will be affected.
Guiding and magneto-optical properties in TGG waveguide by proton implantation combined with femtosecond laser ablation
Authors: Liu Chun-Xiao , Wang Zi-Hao , Guo Bei-Er , Yuan Rui , Wang Yi-Fan , Zhou Yu-Hang , Sun Jia-Bin , Zhang Liao-Lin , Guo Hai-Tao 
Published: February 2025

Abstract
Integrating the magneto-optical effect into a waveguide-based photonic device becomes more and more interesting. In the work, the planar optical waveguide firstly was prepared in a TGG crystal via the proton implantation with the energy of 4×10-1 MeV and the fluence of 6×108 ions/μm2. Subsequently, a femtosecond laser with a central wavelength of 800 nm and a power of 3 mW was used to ablate the surface of the planar waveguide, forming the ridge optical waveguide. The dark-mode curve of the planar waveguide was measured by a prism coupling technique. The top-view morphology of the ridge waveguide was observed via a Nikon microscope. The mode field distributions of the planar and ridge waveguides were obtained by an end-face coupling system, and the propagation losses of the two waveguides were measured to be 2.26 dB/cm and 2.58 dB/cm, respectively. The Verdet constants were measured to be -72.7 °/·cm for the TGG substrate and -60.7 °/·cm for the ridge waveguide. The TGG waveguides have a potential in the fabrication of magneto-optical waveguide devices.
Detectability of Kilonovae from Binary Neutron Star Mergers through Electromagnetic Survey Telescopes
Authors: Zhao Chunyang , Lu Youjun , Zhao Wen 
Published: February 2025

Abstract
Mergers of binary neutron stars (BNSs) produce kilonovae, powered by decay of r-process heavy nuclei in their ejecta. Searching and finding kilonovae, associated with gravitational wave (GW) detected BNS mergers, is crucial for multimessenger studies of BNS mergers and their astrophysical and cosmological applications. In this paper, we investigate the detectability of kilonovae by several electromagnetic surveys, including SiTian, the Chinese Space Station Telescope (CSST), the Rubin Observatory, Euclid and the Nancy Grace Roman Space Telescope (RST). We consider BNS mergers detected by both the network of the Laser Interferometer Gravitational Wave Observatory (LIGO), Virgo and Kagra (LVK), and of the Einstein Telescope and Cosmic Explorer (ET\&2CE). We adopt a binary population synthesis model to obtain mock sample of BNS mergers with known properties, and a phenomenological kilonova model to predict multiband light curves of kilonova associated with each BNS merger. We predict the detection rate or efficiency of kilonovae by Rubin and SiTian, CSST, Euclid and RST, associated with BNS mergers either detected by LVK operation 5 (O5) or ET\&2CE, under either the wide fast deep survey or time of opportunity strategy. We also predict the parameter (total mass, mass ratio, localization area) distributions of BNS systems jointly detected by GW and EM observations. We emphasize that kilonovae associated with massive BNS mergers like GW\,190425 (with total mass $\gtrsim3.3M_\odot$) can be detected in a significant fraction $\simeq20-30$\% for ET\&2CE or $\simeq30-40$\% for LVK O5 by SiTian with a shallow observational depth or other survey telescopes, providing crucial information for kilonova physics and the equation of state of neutron stars.
Systematic review on visual aid technologies for surgical assistant robotic devices
Authors: Mendoza-Baustista Karen , Torres-Mendez Abril , Chairez Isaac 
Published: February 2025

Abstract
This review comprehensively analyzes the modern literature on including visual aids in diverse surgical assistant robotic systems. The review considered a deep analysis of diverse technical and scientiﬁc sources that provide precise information on how the more recent surgical systems, especially those considering robotic devices, perform automatic operations on patients. The search procedure and the corresponding analytics considered only those conditions where vision systems played a signiﬁcant role in the surgical procedure, despite the type of end-effector and if only position or force were used as part of the feedback analysis. This review is organized considering the robot conﬁguration, the type of end-effector, the vision systems considered for those cases, and the associated control actions, which must include the acquired image or video. The study analyzes the key contributions of the published cases. It provides a critical description of the advantages and shortcomings of the technological implementation of vision systems in surgical robotic devices. Finally, this review provides a general prospective view of ongoing research on vision aids for surgical robotic systems, which will become an ordinary actor in future surgical systems.&#xD;Note for the practitioners: This review offers a technicaloriented analysis of modern robotic devices and their integration with automatic vision systems that could operate as efﬁcient surgical automatic systems. In particular, the review offers a systematic analysis that justiﬁes the introduction of visual aiding systems that may solve different tasks such as tracking trajectory, supervision, and prevention.&#xD;
Introduction
Authors: Hartmann Catherine 
Published: February 2025

Abstract
The book’s introduction accomplishes three primary goals that prepare the reader for the focused argument made in the body chapters. First, the introduction frames the entire argument with an episode from the Vimalakīrtinirdeśa Sūtra in which the Buddha temporarily reveals that the ordinary world of pain and suffering is actually a perfect world. The Buddha argues that ordinary people’s deluded perception prevents them from seeing the world as it truly is. Second, the chapter briefly introduces practices of pilgrimage in Tibet, as well as the goal of transforming perception on pilgrimage so that pilgrims can see the mountain’s ordinarily invisible wonders. Finally, the chapter introduces the range of pilgrimage texts that will be examined in the coming chapters, and it lays out the theoretical and methodological approaches to these texts that will inform the book’s central arguments. This includes the framework of “making the invisible real” as developed by Tanya Luhrmann.
How Pilgrimage Guides Use Language and Landscape to Cultivate Co-Seeing
Authors: Hartmann Catherine 
Published: February 2025

Abstract
This chapter explores the genre of pilgrimage guides (gnas yig), which provide practical instructions for how to see the pilgrimage place. It identifies the literary strategies by which pilgrimage guides direct the reader’s attention. It then develops an account of how the language of these guide texts facilitates co-seeing by functioning as a kind of extended metaphor. In other words, language creates for pilgrims a fantastic vision of the hidden worlds of the pilgrimage place. Meanwhile, the guides constantly draw pilgrims’ attention to their ordinary perception of the physical world in front of them. The effect is to juxtapose that fantastic vision of the site with the pilgrims’ ordinary perception of it. In so doing, the texts themselves interweave the ordinary and fantastic worlds in the pilgrim’s experience, thus creating the conditions for pilgrims to experience the mountain as the divine palace that such guides say it truly is.
Plasma biomarkers for diagnosis and differentiation and their cognitive correlations in patients with Alzheimer’s disease
Authors: Sun Wenhao , Ye Shuwei , Wang Yu , Chen Huifeng , Che Ping , Chen Jingshan , Zhang Nan 
Published: February 2025

Abstract
Increasing evidence has shown the potential value of plasma biomarkers in Alzheimer’s disease (AD) diagnosis. This study aimed to determine the diagnostic and differential values of emerging plasma biomarkers for different types of dementia in a Chinese population and to explore their cognitive correlations. One hundred twenty patients with dementia, including 51 AD patients, 54 subcortical ischemic vascular dementia (SIVD) patients, and 15 frontotemporal lobar degeneration (FTLD) patients were recruited alongside 27 cognitively unimpaired (CU) control subjects. Global and domain-specific cognition was assessed in all participants by a battery of neuropsychological tests. Plasma amyloid beta (Αβ)42, Aβ40, and total tau (T-tau) (in CU controls and AD patients) and phosphorylated tau at threonine-181 (P-tau181), neurofilament light (NfL) and glial fibrillar acidic protein (GFAP) levels (in all participants) were measured using the single-molecule array (Simoa) platform. The levels of all biomarkers differed between AD patients and CU controls, with P-tau181 and GFAP levels and the Aβ42/P-tau181 ratio best differentiating the two groups (AUC=0.966, 0.932, and 0.927, respectively). P-tau181 and GFAP levels were greater in the AD group than in the other two patient groups and showed the best performance in distinguishing AD patients from SIVD (AUC= 0.922) and FTLD patients (AUC= 0.894), respectively. Moreover, compared with that in the CU group, the GFAP level was elevated in the SIVD group, and the NfL level was elevated in all patient groups. Compared with other single biomarkers, the plasma Aβ42/P-tau181 ratio correlated with broader cognitive domains, including global cognition (Mini-Mental Status Examination [MMSE], r = 0.314, P = 0.027; Montreal Cognitive Assessment [MoCA], r = 0.313, P = 0.043), memory (r = 0.339, P = 0.016), language (r = 0.333, P = 0.020), attention and information processing speed (r =0.369, P = 0.008), executive function (r = 0.305, P = 0.031), and visuospatial function memory (r = 0.453, P = 0.001). P-tau181 was an optimal plasma biomarker for identifying AD patients and differentiating AD patients from SIVD and FTLD patients. Moreover, the GFAP level and the Aβ42/P-tau181 ratio showed potential diagnostic and progression monitoring value, respectively, for AD patients.
Can conspiracy theories ever be plausible? The role of narrative rationality in the assessment of online conspiracy theories
Authors: Turner Hossein 
Published: February 2025

Abstract
Conspiracy theories (CTs) represent a persistent challenge in evaluating major events, as they often employ fallacious forms of narrative reasoning and persuasion to posit conspiratorial agency and motives. While many CT narratives conflict with logic and reason, a minority may possess a degree of plausibility. But by what standards can plausibility of a CT be measured? This article introduces concepts from legal storytelling, rhetoric and cognitive linguistics to expand Walter Fisher’s narrative paradigm framework, enabling auditors to critically engage with the rhetorical dynamics of CT narratives. Through an analysis of official and alternative narratives surrounding the death of a Russian spy, this article demonstrates how, in a similar way to the role of jurors in criminal trials, auditors may either join the rhetor in co-creating a coherent and plausible narrative, or end up challenging the rhetor by identifying problems and thus planting the potential seeds of rival accounts.