bluuebunny/crossref_metadata_2025_split huggingface dataset:
New operation analysis method for vacuum tube driving a tuned cavity
Authors: Wu Jian , Zhang Chunlin , Wu Bin , Liu Hanyang , Li Xiang , Liu Yang , Long Wei , Li Xiao 
Published: November 2024

The rf system of China Spallation Neutron Source (CSNS) Rapid Cycling Synchrotron (RCS) utilizes vacuum tubes to drive the ferrite-loaded cavities. Ensuring stable tube operation in the rf system is crucial for the acceleration of high-intensity beams, as any instability may impede further increases in beam power. Therefore, the operation of the vacuum tube under heavy beam loading has attracted significant attention, particularly in the case of CSNS-II RCS, where the circulating beam current is expected to reach up to 15.25 A, imposing a substantial burden on the vacuum tube for beam loading compensation. Thus, a comprehensive analysis of tube operation is imperative. However, current methods for the tube operation analysis are developed based on wideband rf cavities, which are inadequate when the load of the tube is a narrowband ferrite-loaded cavity equipped with a tuning system. The presence of a tuning system renders the modeling method for wideband rf cavities inapplicable for ferrite-loaded cavities. Therefore, the development of a new method is necessary. This paper introduces a novel method for analyzing operation of vacuum tube driving a tuned cavity. The effectiveness of the method is validated by comparing the analysis results with measurements under beam loading conditions. Furthermore, an estimation of tube operation under 500 kW beam loading for CSNS-II is provided.

Published by the American Physical Society
2024
Engineering exchange bias at the interface of self-polarized ultrathin ferroelectric
BaTiO3
and ferromagnetic
La0.67Sr0.33MnO3
Authors: Maity Tuhin , Bansal Manisha , Strkalj Nives , Dolui Kapildeb , Zhang Di , He Zihao , Nataf Guillaume F. , Lovett Adam , Ghidini Massimo , Dhesi Sarnjeet S. , Lu Ping , Wang Haiyan , Li Weiwei , MacManus-Driscoll Judith L. 
Published: November 2024

We investigate the emergence and optimization of conventional exchange bias (EB) in ultrathin (<10 nm) ferroelectric (FE) BaTiO3 (BTO)/ferromagnetic (FM) La0.67Sr0.33MnO3 (LSMO) epitaxial bilayers without an antiferromagnetic (AFM) material. The EB originates from the electronic orbital reconstruction at the FE-FM interface due to the ferroelectric polarization. We achieve maximum EB of approximately 42 Oe with single-domain polarization in nine-unit-cell-thick BTO, setting the BTO thickness above the critical threshold for ferroelectricity yet below the thickness of strain relaxation and multidomain breakdown. Furthermore, the LSMO layer needs to be thick enough to sustain both the FM layer and polarization-induced AFM spin configuration at the LSMO/BTO interface, yet as thin as possible to enable the EB loop shift. The temperature, training, field, and thickness dependence of the EB confirm that the LSMO/BTO interface exhibits conventional EB despite its unconventional origin. Using x-ray magnetic circular dichroism, scanning transmission electron microscopy, and density-functional-theory calculations, we confirm that the macroscopic EB effect originates from the interfacial AFM spin configuration in LSMO driven by FE-induced -orbital modifications in interfacial Mn ions. Thus, we engineer strong interfacial EB coupling in artificial multiferroics without a conventional AFM material by controlling FE polarization, highlighting the potential for advanced spintronic applications.

Published by the American Physical Society
2024
Quantum spin representation for the Navier-Stokes equation
Authors: Meng Zhaoyuan , Yang Yue 
Published: November 2024

We develop a quantum representation for Newtonian viscous fluid flows by establishing a mapping between the Navier-Stokes equation (NSE) and the Schrödinger-Pauli equation (SPE). The proposed nonlinear SPE incorporates the two-component wave function and the imaginary diffusion. Consequently, classical fluid flow can be interpreted as a non-Hermitian quantum spin system. Using the SPE-based numerical simulation of viscous flows, we demonstrate the quantum/wavelike behavior in flow dynamics. Furthermore, the SPE equivalent to the NSE can facilitate the quantum simulation of fluid dynamics.

Published by the American Physical Society
2024
Digital financial literacy and financial well-being – evidence from India
Authors: Bhat Suhail Ahmad , Lone Umer Mushtaq , SivaKumar ArunKumar , Krishna U.M. Gopal 
Published: November 2024

PurposeThis study aims to examine the influence of digital financial literacy (DFL) on the financial well-being (FWB) of students in Andhra Pradesh, specifically exploring the factors of impulsivity and self-control. Both DFL and FWB are treated as multi-dimensional constructs in the study. The research delves into the impact of DFL dimensions, viz. digital financial knowledge, digital financial experience and digital financial skills, on both impulsivity and self-control. Subsequently, the study assesses the effects of impulsivity and self-control on financial well-being.Design/methodology/approachTo gather data, a questionnaire-based survey method was employed, reaching 475 university students through purposive sampling. The study utilizes confirmatory factor analysis for scale validation and structural equation modeling for hypothesis testing.FindingsThe results reveal a significantly negative influence of digital financial knowledge (DFK), digital financial experience (DFE) and digital financial skills (DFS) on impulsivity, while demonstrating a significantly positive impact on self-control. Additionally, the study finds that impulsivity negatively affects financial well-being, whereas self-control has a positive impact. Focusing on higher education institutions in Andhra Pradesh, the research highlights students’ limited concern for long-term financial planning.Originality/valueThis study underscores the relevance of understanding the crucial role of digital financial literacy in enhancing their financial well-being. The implications of these research findings are substantial and can be utilized to shape educational programs for students in higher education institutions. Such programs can guide institutions in imparting knowledge and skills related to personal finance management, particularly in the context of the increasing digitalization of financial transactions.
Students’ ratings to evaluate effective teaching practices of secondary schools in Bangladesh
Authors: Asadullah Sheikh , Gunawan Indra 
Published: November 2024

PurposeInternational studies have emphasised the importance of effective teaching for student learning. However, few studies have investigated teaching practices in Bangladesh. The purpose of the study set out to explore the mathematics teaching behaviour of secondary school level of Bangladesh.Design/methodology/approachA convenient sampling strategy was used to collect 502 grade nine students’ perceptions from 15 mathematics classes within Dhaka Metropolitan City (DMC). A valid and reliable student questionnaire was used where the students rated their mathematics teachers' teaching behaviours identified in the dynamic model of educational effectiveness (DMEE).FindingsThe findings from the quantitative analysis of the student evaluations revealed that the mathematics teachers demonstrated structuring, modelling, questioning, teacher–student interactions and teacher dealing with misbehaviours in their daily classroom teaching.Research limitations/implicationsA small sample of mathematics classes were chosen in the study; hence, the findings may not be totally representative nor generalisable to the population of secondary mathematics teachers within Dhaka, Bangladesh.Practical implicationsThe study conducted in Bangladesh contributes to the international dimension to educational effectiveness research. The findings from the study provide partial support for teaching factors and dimensions in DMEE (Creemers and Kyriakides, 2008), and emphasise the need for further studies, particularly in cross-cultural contexts.Originality/valueThis is the first study to evaluate teaching behaviours of secondary mathematics teachers through students’ perceptions in Bangladesh. It contributes important insights about teaching behaviours to inform the development of evidence-based policy and practice on quality teaching in the region.
Leakage prediction approach and influencing factor analysis from seal test
Authors: Gong Ran , Li Jinxiao , Xu Jin , Zhang He , Che Huajun 
Published: November 2024

Purpose
Leakage serves as a core indicator of sealing performance degradation, particularly under high-speed and heavy-duty operational where increased leakage is common. Within heavy-duty vehicle transmissions, the leakage can lead to excessive pressure loss and eventual transmission failure. This study aims to introduce a predictive method for assessing sealing ring leakage in vehicle transmissions based on operating conditions.

Design/methodology/approach
Seal test was carried out using a specialized seal test rig. Various data points were collected during this test, including leakage, friction torque, oil temperature, oil pressure and rotating speed. The collected data underwent noise separation and reconstruction using the complete ensemble empirical mode decomposition with adaptive noise method. Subsequently, a leakage prediction model is developed using the random forest regression with parameter optimization. A quantitative evaluation for influencing factors in leakage prediction process is investigated.

Findings
The results achieve a mean accuracy index exceeding 95%, demonstrating close alignment between predicted and actual leakage values. Feature contribution results highlight that the trends of the oil temperature, friction torque and oil pressure significantly affect the leakage prediction, with the oil temperature trend exerting the most substantial influence.

Originality/value
This work sheds light on the interplay between operating conditions and sealing performance degradation, offering valuable insights for understanding and addressing sealing issues effectively.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2024-0271/
The state of contemporary intergroup conflict in the Papua New Guinea Highlands
Authors: Forsyth Miranda 
Published: November 2024

Purpose
This paper aims to discuss the scholarship over the past 30 years on what used to be called Melanesian warfare or “tribal fighting” and is termed in this paper “intergroup conflict” in the Highlands of Papua New Guinea. The paper categorises the drivers of intergroup conflict that make up the landscape for conflict in the Highlands. It starts with cultural factors and the understandings about conflict that have long been used to explain such violence, then adds newer factors. It argues that while the individual existence of each driver is important, far more important is the way in which they interact with each other in reinforcing feedback loops that propel the actors involved towards violence.

Design/methodology/approach
The paper is based on a thorough review of the scholarly and grey literature on the topic, drawing from the fields of anthropology, criminology, political science, law, justice and peacebuilding.

Findings
The overall finding of the paper is that the nature of intergroup conflict, its scale and dynamics, has changed considerably over the past 30 years, most prominently in the entanglement of the state with local-level conflicts. This has significantly affected the nature of intergroup conflict today, deepening the attractors towards violence and conflict, while weakening the ability of existing state and non-state systems to prevent it. The picture that emerges is one in which the interconnectivity of factors promoting violence has intensified, the rate of change is accelerating and levels of violence are amplified.

Originality/value
This paper is an original work.
Reexamining the relationship between knowledge paradox and collaborative performance
Authors: Huang Ming-Chang , Tsai Ming-Kun , Chen Tzu-Ting , Chiu Ya-Ping , You Wan-Jhu 
Published: November 2024

Purpose
This study aims to empirically investigate how knowledge paradox affects collaboration performance. Knowledge paradox, which arises from the simultaneous need for knowledge sharing and protection, is common in interorganizational collaboration. Using the ambidexterity perspective, this paper aims to reexamine the effect of the knowledge paradox on collaborative performance to explore the moderating roles of structural and contextual ambidexterity.

Design/methodology/approach
This study used a sample of 153 firms involved in vertical and horizontal collaboration, collected via questionnaires. Hypotheses were tested using hierarchical regression analysis.

Findings
This study demonstrates that the stronger the knowledge paradox is, the higher the potential for value creation. Thus, knowledge paradox has a positive impact on collaborative performance. The functions of structural ambidexterity and contextual ambidexterity strengthen this positive relationship.

Originality/value
This paper not only expands the theoretical application of the knowledge paradox and ambidexterity theory in the context of interorganizational relationships but also provides significant managerial implications. By comprehending the dynamics of the knowledge paradox and the role of ambidexterity, managers can make well-informed decisions to enhance their collaborative performance.
A typology of brand knowledge associations projected in brand-generated signals
Authors: Veloutsou Cleopatra , Ballester Estefania 
Published: November 2024

Purpose
The extensive brand associations research lacks organisation when it comes to the used information cues. This paper aims to systematically map and categorise the brand knowledge associations’ components and develop a typology applicable to any brand.

Design/methodology/approach
Using the restaurant and hotel industries in four different European cultural clusters as contexts, this work uses well-established systematic qualitative analysis approaches to categorise, code and model pictorial content in two studies. A four-stage sampling process identified Instagram brand-posted signals (photos), 243 from 26 restaurants in Madrid, Paris and Rome for study one and 390 from 29 hotels in Moscow, Berlin and Stockholm for study two. Adhering to relevant guidelines, the manual coding procedures progressed from 246 for restaurants and 231 for hotels initially generated free information coding inductive codes to a theory-informed categorisation. Quantitative analysis complemented the qualitative analysis, revealing the information cues relative utilisation.

Findings
For both studies, the analysis produced a typology consisting of two high-level and five lower-level brand knowledge association categories, namely: (a) brand characteristics consisting of the brand as a symbol, the brand as a product and the brand as a person, and (b) brand imagery consisting of user imagery and experience imagery. The five lower-level categories comprise of sub-categories and dimensions, providing a more comprehensive understanding of the brand associations conceptual structure relevant to brands operating in any industry.

Research limitations/implications
Researchers can use this typology to holistically encapsulate brand associations or design projects aiming to deepen brand knowledge association aspects/dimensions understanding.

Practical implications
Managers can use this typology to portray brands. Some of the identified lower-level categories and/or sub-categories and dimensions are likely to need customisation to fit specific contexts.

Originality/value
The suggested categorisation offers a solid, comprehensive framework for effectively categorising and coding brand knowledge associations and proposes a new theory in the form of a typology.
Talent philosophies and institutional factors as determinants of talent management in SMEs: a French country-specific empirical investigation
Authors: Abid Kousay 
Published: November 2024

PurposeTalent management (TM) is a crucial strategic issue for global organizations, extending beyond multinationals and big companies to encompass small and medium-sized enterprises (SMEs) and contexts outside the Anglo-Saxon sphere. However, TM in SMEs is still under-researched, with a lack of studies and evidence on TM determinants and TM in practice. This study explores, using the lens of institutional theory, how talent philosophies and a combination of institutional factors shape TM in French SMEs, highlighting the interplay between these elements within the specific context of French SMEs.Design/methodology/approachGiven the limited knowledge about TM determinants in SMEs and the need to uncover and understand the phenomenon investigated, this study is exploratory in nature and lends itself to a qualitative research approach. In-depth semi-structured interviews with 27 CEOs, managers, TM and HR managers across 15 SMEs in France provided a comprehensive cross-industry perspective.FindingsThe study reveals that talent philosophies in French SMEs are predominantly inclusive and development-oriented, influenced by institutional factors such as the cultural logic of proximity and personalization, state support mechanisms like the Fonds Unique Interministériel (FUI) and legal frameworks that emphasize equal opportunity. Organizational elements like size and proximity foster a community-focused, egalitarian TM approach, while ownership and vulnerability lead to a reactive and informal TM strategy. The study presents a model that links these determinants to the specific TM approaches observed in French SMEs, illustrating how institutional factors like centralized control and egalitarianism shape TM practices.Research limitations/implicationsThis paper highlights the need for more empirical studies on talent philosophies, institutional and organizational factors not only in SMEs but also in comparison with multinational enterprises (MNEs), through institutional theory. Particular attention should be paid to the homogenization of SME sizes based on their level of establishment.Originality/valueThis study extends studies on TM determinants in SMEs, from the perspective of talent philosophies, utilizing insights from French institutional theory. It is also among the few and new studies to highlight contextual issues of TM as well as how TM is practiced depending on internal and external factors.
Cash or crash? The diversification game and corporate cash holdings in India
Authors: Saxena Vedika , Sahoo Seshadev 
Published: November 2024

Purpose
This paper aims to explore how corporate diversification influences corporate cash holdings (CCH) in India. It also assesses CCH behavior and its determinants during crisis, stability and recovery periods.

Design/methodology/approach
The study uses the system generalized method of moments (System GMM) on 1684 non-financial firms listed on the National Stock Exchange during 2002–2022. Further analyses are carried out for group-affiliated firms based on investment cash flow sensitivity, agency costs and debt capacity.

Findings
The findings show that firm diversification (at the group level) results in a roughly 6% fall in cash ratio, thereby implying that diversified firms (diversified business groups) hold lower cash levels than specialized firms. The reduced cash balances are attributed to the financially unconstrained nature of diversified business groups, higher debt capacity, good governance behavior and active internal markets. Additionally, the authors observe a time-varying cash policy for diversified firms, with mean cash holdings being 2% higher during crisis periods. Moreover, the findings reveal that the inverse relationship between diversified firms and CCH is less pronounced for unrelated diversified firms (2% fall in cash ratio) than related diversified firms (5% fall in cash ratio).

Originality/value
To the best of the authors’ knowledge, this is the first study to examine the relationship between corporate diversification and CCH in India during both crisis and non-crisis periods. The authors’ research uniquely uses System GMM on a large sample and differentiates between related and unrelated diversification.
Punching above their weight? Examining player development pathways in Belgian football: a retrospective analysis
Authors: Bullough Steve , Balliauw Matteo , Mills Andrew , Fallon Niall 
Published: November 2024

PurposeBelgium has consistently produced world-class footballers, outperforming many larger football associations despite having a smaller talent pool and fewer resources. This paper aims to (1) examine the development pathways of Belgian professional players over the past decade and (2) quantify the role of opportunities in European leagues outside the “Big 5” for a comparative analysis of different player development systems. By exploring how Belgian players progress through various leagues and systems, this study seeks to identify strategic insights that can inform the development practices of both Belgian football and other European nations with similar constraints.Design/methodology/approachData on player performance were collected over ten seasons (2013/14 to 2022/23) from 15 European leagues, including the “Big 5” (England, France, Germany, Italy and Spain) and ten other prominent leagues (Austria, Czech Republic, Denmark, Greece, Netherlands, Poland, Portugal, Scotland, Switzerland and Turkey). The variables collected included player name, nationality, team, league, season, appearances, minutes played, age and position. For Belgian players in the sample, the youth academies they attended were also noted.FindingsBelgian players have achieved significant success, particularly in terms of transitioning into the “Big 5” leagues. However, the number of “home-grown” players making appearances and gaining minutes in the Belgian league is relatively low (ranking 13th of the 15 leagues studied). In contrast, Belgian players rank third in terms of total minutes played in the “Big 5” leagues, behind Portuguese and Dutch players. Anderlecht was the most successful Belgian club in developing professional players, and other key contributors were clubs with consistent Champions League participation.Originality/valueWhile substantial research exists on player development in the “Big 5” European leagues, comparatively little attention has been given to other significant European leagues. This paper addresses that gap by examining the role of smaller leagues in developing young talent, despite their limited resources and reduced access to Europe's elite competitions. The findings highlight the need for policy reforms and strategic improvements at both the national and European levels to enhance player development pathways.