bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermoelectric cooling of a finite reservoir coupled to a quantum dot
Authors: Matern Stephanie , Moreira Saulo V. , Samuelsson Peter , Leijnse Martin 
Published: November 2024

We investigate nonequilibrium transport of charge and heat through an interacting quantum dot coupled to a finite electron reservoir. Both the quantum dot and the finite reservoir are coupled to conventional electric contacts, i.e., infinite electron reservoirs, between which a bias voltage can be applied. We develop a phenomenological description of the system, combining a rate equation for transport through the quantum dot with standard expressions for bulk transport between the finite and infinite reservoirs. The finite reservoir is assumed to be in a quasiequilibrium state with a time-dependent chemical potential and temperature which we solve for self-consistently. We show that the finite reservoir can have a large impact on the stationary state transport properties, including a shift and broadening of the Coulomb diamond edges. We also demonstrate that there is a region around the conductance lines where a heat current flows out of the finite reservoir. Our results reveal the dependence of the temperature that can be reached by this thermoelectric cooling on the system parameters, in particular the coupling between the finite and infinite reservoirs and additional heat currents induced by electron-phonon couplings, and can thus serve as a guide for experiments on quantum-dot-enabled thermoelectric cooling of finite electron reservoirs. Finally, we study the full dynamics of the system, with a particular focus on the timescales involved in the thermoelectric cooling.

Published by the American Physical Society
2024
Charmoniumlike states with the exotic quantum number
JPC=3−+
Authors: Xi Hong-Zhou , Chen Hua-Xing , Chen Wei , Steele T. G. , Zhang Yong , Zhou Dan 
Published: November 2024

We apply the method of quantum chromodynamics (QCD) sum rules to study the qcq¯c¯ tetraquark states with the exotic quantum number JPC=3−+, and extract the mass of the lowest-lying state to be 4.49−0.41+0.45  GeV. To construct the relevant tetraquark currents we need to explicitly add the covariant derivative operator. Our systematic analysis of these interpolating currents indicates that: (a) this state readily decays into the P-wave [ρJ/ψ]/[ωJ/ψ] channel but not into the [ρχc2]/[ωχc2]/[J/ψf2(1270)] channels, and (b) it readily decays into the [D*D¯2*] channel but not into the P-wave [D*D¯*] channel.

Published by the American Physical Society
2024
Contact interaction treatment of
V→Pγ
for light-quark mesons
Authors: Xu Yehan , Sultan M. Atif , Raya Khépani , Chang Lei 
Published: November 2024

The V→Pγ and η(η′)→γγ decays are evaluated within a Dyson-Schwinger and Bethe-Salpeter equations framework (here V={ρ±,K⋆±,ϕ} and P={π±,K±,η,η′}). The so-called impulse approximation (IA) is employed in the computation of the decay constants involved and decay widths, and so in the estimation of the associated charge and interaction radii. For their part, the required propagators and vertices stem from a contact interaction model, embedded within a beyond rainbow-ladder (RL) truncation that accounts for the typical ladder exchanges, quark anomalous magnetic moment, as well as the non-Abelian anomaly. While the examined transitions produce decay widths plainly compatible with the available experimental data, those processes involving the η−η′ mesons highlight the incompleteness of the IA when considering beyond RL effects in the interaction kernels.

Published by the American Physical Society
2024
Comparative analysis of
C
moments using different phenomenological models
Authors: James Jinu , Aggarwal R. , Kaur M. 
Published: November 2024

Analysis of normalized C moments of multiplicity distribution calculated from the different phenomenological models, the Bialas-Praszalowics (BP) model, modified negative binomial and the superposed shifted Gompertz distribution at different center of mass (cms) energies is presented. The analysis covers a range of energies (200–900 GeV) of p¯p collisions in restricted phase space slices. A comparison of different models to the experimental data on charged particle multiplicity spectra from the p¯p annihilation in five pseudorapidity windows is reported. The comparison shows that the two approaches other than the BP model are in better agreement to the data. Results on variation of moments with pseudorapidity window size and with center of mass energy and observations from such a study in p¯p annihilation and pp interactions at the same center-of-mass energy are also presented.

Published by the American Physical Society
2024
The big fat Indian wedding
Authors: Satpute Pratik Rajendra , Bapat Gautam Surendra , Joshi Shefali 
Published: November 2024

Learning outcomes
After completion of the case study, students will be able to recall the fundamental concepts of group arrival and the check-in process within the hotel industry; explain the various operational procedures used to enhance a smooth group check-in in hotels; use the steps defined in group check-in procedure to improve service efficiency in hotel operations; and examine and evaluate the optimal solution for a smooth group check-in for hotels.

Case overview/synopsis
“The Big Fat Indian Wedding” delves into the challenges faced by Hotel Plaza Blu, a business hotel in Pune, Maharashtra, in 2023. A big wedding group was arriving at the hotel, which comprised almost 350 adults and 120 children. Mr Parag Patil, the front office manager, had done all the preparations for group arrival but just one hour before the arrival Mr Suresh Menon, the group coordinator, came and informed that 150 additional guests would be arriving, as the other hotel, where arrangements for these guests were made, had a major electricity generator breakdown and the hotel was in complete blackout. Patil had the challenge of formulating an action plan to achieve a smooth group check-in with the last-minute changes.

Complexity academic level
Executive development programmes and graduate-level courses in non-profit hospitality and tourism management might benefit from this case study. The operational management courses in the BBA, UG management programmes might all benefit from using this case study.

Supplementary materials
Teaching notes are available for educators only.

Subject code
CSS 9: Operations and Logistics.
A post-occupancy performance evaluation study on user satisfaction with university student housing facilities
Authors: Umar Hassan Hassan , Mohammed Mohammed Alhaji , Kanu Rashid 
Published: November 2024

Purpose
This study used post-occupancy evaluation (POE) to assess the performance and effectiveness of student housing by examining occupants’ satisfaction with the facility across three performance elements: technical, functional and behavioral. This study aims to address a significant gap in the existing research concerning the POE of university student housing facilities, particularly in understanding how well these facilities fulfill occupant needs across the aforementioned three elements.

Design/methodology/approach
This study assesses the existing literature, examines the dormitory’s physical parameters through walkthrough inspections and measures occupant satisfaction through surveys and focus group sessions. The study analyzed questionnaire responses using a four-point Likert scale, using Microsoft Excel software to determine the weighted average response for each performance element.

Findings
The analysis indicated that students were satisfied with most housing condition parameters. However, noise management, lighting control, air circulation, washroom facilities, cleanliness, power sockets for equipment and several study rooms and furnishings require improvement to enhance student well-being and performance.

Originality/value
This study provides significant information to aid in making informative decisions on building maintenance, retrofitting and facility upgrading. It also contributes to enhancing the field’s knowledge about POE in student housing facilities. It emphasizes the importance of using physical building attributes and user-centric features to fulfill students’ needs and expectations regarding facilities.
Medical judicial expertise: the real decision-maker in Chinese medical dispute litigation
Authors: Chen Meng 
Published: November 2024

PurposeThis article attempts to contribute to medical dispute resolution by examining the adoption of medical judicial expertise opinions in determining medical malpractice responsibility and its coordination with the judge’s legal opinions.Design/methodology/approachThis article examines the legal basis and empirical data to demonstrate the decisive effect of medical judicial experts’ opinions in allocating medical malpractice responsibility and corresponding dispute resolution effectiveness.FindingsHigh reliance on medical judicial expertise in medical dispute litigation not only unifies the judicial standards but also limits judges’ discretion, which brings the risk of contradiction between factual and legal findings, which currently ends in judges’ compromise.Originality/valueThe current medical malpractice provisions neglect the divergence of medical judicial expertise and judges’ opinions in determining medical malpractice responsibility, which produces difficulties in harmonizing awarded compensations and parties’ expectations, leading to problematic medical dispute litigation in Mainland China.
FS2M: fuzzy smart IoT device pairing protocol via speak to microphone
Authors: Jia Huaiyu , Chen Dajiang , Xie Zhidong , Qin Zhiguang 
Published: November 2024

Purpose
This paper aims to provide a secure and efficient pairing protocol for two devices. Due to the large amount of data involving sensitive information transmitted in Internet of Things (IoT) devices, generating a secure shared key between smart devices for secure data sharing becomes essential. However, existing smart devices pairing schemes require longer pairing time and are difficult to resist attacks caused by context, as the secure channel is established based on restricted entropy from physical context.

Design/methodology/approach
This paper proposes a fuzzy smart IoT device pairing protocol via speak to microphone, FS2M. In FS2M, the device pairing is realized from the speaking audio of humans in the environment around the devices, which is easily implemented in the vast majority of Internet products. Specifically, to protect the privacy of secret keys and improve efficiency, this paper presents a single-round pairing protocol by adopting a recently published asymmetric fuzzy encapsulation mechanism (AFEM), which allows devices with similar environmental fingerprints to successfully negotiate the shared key. To instantiate AFEM, this paper presents a construction algorithm, the AFEM-ECC, based on elliptic curve cryptography.

Findings
This paper analyzes the security of the FS2M and its pairing efficiency with extensive experiments. The results show that the proposed protocol can achieve a secure device pairing between two IoT devices with high efficiency.

Originality/value
In FS2M, a novel cryptographic primitive (i.e., AFEM-ECC) are designed for IoT device pairing by using a new context-environment (i.e., human voice) . The experimental results show that FS2M has a good performance in both communication cost (i.e., 130 KB) and running time (i.e., 10 S).
Driving financial inclusion: exploring mobile wallet adoption among rural Omani millennials
Authors: Ghouse Suhail M. , Shekhar Rishabh , Chaudhary Monica 
Published: November 2024

Purpose
This study aims to investigate the adoption of mobile wallet payment services among rural Omani millennials, with a focus on social factors, perceived security, trust considerations and the moderating role of technology self-efficacy in shaping attitudes and intentions towards adoption. It also explores the role of mobile wallets in advancing financial inclusion, aligned with Sustainable Development Goal 10 (Reduced inequalities).

Design/methodology/approach
A survey method was used with 544 randomly selected participants from rural Oman. The study used partial least squares structural equation modelling (PLS-SEM) to analyse relationships among the constructs, including subjective norms, perceived security, trust and self-efficacy.

Findings
The results support five hypotheses, confirming the influence of subjective norms, perceived security and technology self-efficacy on attitudes and intentions to adopt mobile wallets. Additionally, mobile wallet self-efficacy emerges as a significant moderator, enhancing the relationship between positive attitudes and behavioural intentions.

Research limitations/implications
The study extends the technology acceptance model (TAM) by incorporating moderating variables such as technology self-efficacy and perceived security, offering theoretical contributions to digital payment adoption literature, especially in rural settings.

Practical implications
The findings underscore the need for trust-building efforts by service providers and collaborative strategies involving government incentives and promotions to foster mobile wallet adoption. Strengthening digital literacy and addressing security concerns are critical for promoting financial inclusion in rural communities.

Originality/value
This research contributes to promoting economic empowerment through mobile wallet adoption in rural Oman, offering valuable insights for policymakers and service providers aiming to reduce socio-economic disparities. By addressing the digital divide and supporting financial inclusion, the study supports the advancement of SDG 10 (Reduced inequalities) and fosters inclusive growth in underserved communities.
An analysis of the use of 3D game engine technology in visualising sustainability data
Authors: Muhammad Awn , Hazelton James 
Published: November 2024

Purpose
Responding to calls for accountants to engage with modern technologies and explore data visualisation within a three-dimensional (3D) environment, this study aims to explore whether social and environmental accounting (SEA) data visualisation is a promising use case for 3D game engine technology.

Design/methodology/approach
Drawing on visual perception and embodiment theories, this study uses photo-elicitation, a qualitative research method, to explore the usefulness of two-dimensional (2D) and 3D visualisations of sustainability information in a 3D virtual environment. This study provides three stimuli: numerical data, 2D visualisations and 3D visualisations, and asks open-ended questions regarding future applications. Twelve semi-structured interviews were conducted with academics, preparers and users of sustainability reports to obtain responses to these stimuli.

Findings
The key finding is that visualisation of SEA information may indeed be a strong use case for 3D game technology, but only for certain data and for certain audiences. Presenting information within a 3D virtual environment offered enhanced engagement and contextual understanding but reduced navigation speed and data clarity. Participants were enthusiastic about the potential of a museum-like experience, incorporating interactivity and community, but felt that the appropriate audience was more likely to be novices than experts.

Practical implications
This study suggests that deploying 3D game engine technology can be a powerful tool for presenting sustainability information but requires significant resources. The optimum audience is likely to be novices, and a key design principle is to ensure the virtual environment supports, rather than overwhelms, the information presented within that environment.

Originality/value
This study introduces a novel application of 3D visualisation technology within the SEA context, offering original insights into its potential to enhance user understanding and decision-making capabilities. This study highlights the technology’s value not as a replacement for traditional reporting but as a supplementary educational tool. The study also provides a novel setting for the photo-elicitation method, demonstrating this approach’s utility in a 3D environment.
The structuring of a (semi) agile-based organization: product orientation in a state agency
Authors: Nesheim Torstein 
Published: November 2024

Purpose
The purpose of the paper is to analyze how a change towards product orientation based on an agile approach challenges, contrasts and/or coexists with other principles of organization and grouping, such as development projects, the existing hierarchical line structure and process management.

Design/methodology/approach
This is a case study of one organization, based on an explorative appoach.

Findings
Taking the competing dimension of coordination and principles of grouping as the starting point, this study identify, describe and analyze the tensions that result from the introduction of product organization. The product initiative has met many obstacles and tensions along four dimensions: Process, line, information technology units and development projects. For each of these dimensions a number of challenges have been identified, that contribute to increased complexity in the organization.

Research limitations/implications
A limitation of the study is that the findings cannot be generalized to other organizations.

Practical implications
A practical implication of the study is that product organization triggers tensions with other principles of organizations and grouping.

Originality/value
This study mainly contributes to the knowledge of agile management and agile organization, identifying and theorizing challenges that have been neglected and/or poorly understood both in the popular literature and in organizational research. This is particularly the case in the public sector. This study is also relevant to the domain of multidimensional structures, adding an understanding of the novel opportunities and challenges of product- and agile-based grouping of activities in an organization.
Integrated manufacturing method of multimaterial sand mold by binder jetting
Authors: Yang Haoqin , Shan Zhongde , Yan Dandan , Shi Jianpei , Huang Jian , Dong Shijie 
Published: November 2024

Purpose
This paper aims to develop a flexible manufacturing method for multimaterial sand molds to realize efficient additive manufacturing of multimaterial sand molds.

Design/methodology/approach
To study the influence of multimaterial sand laying process parameters on the quality of powder bed and optimize the design of multimaterial sand laying device. Numerical simulation and X-ray Computed Tomography are used to study the penetration behavior and curing morphology of resin in different sand particles.

Findings
The surface roughness and porosity of the multimaterial powder bed that meet the requirements of sand-based additive manufacturing can be obtained under the optimal printing process, that is, the sanding speed of 140.0 mm/s and sanding roller diameter of 15.0 mm. The resin penetration process of the multimaterial sand molds shows a pattern of transverse expansion and longitudinal penetration. In terms of the resin curing morphology, the maximum thickness of the resin film layer of zircon sand reaches 30.5 ± 1.0 µm, which has the best tensile property, followed by silica sand and the thinnest resin film layer of chromite sand.

Originality/value
In this work, a highly flexible integrated combined sand-laying device suitable for multimaterial sand-laying tests is developed, which can obtain a multimaterial powder bed that meets the needs of sand additive manufacturing. Subsequent casting print tests also verify that the program can meet the needs of multimaterial sand mold additive manufacturing.
Application of FBG sensor in health monitoring of engineering building structure: a review
Authors: Zhou Chenxia , Jia Zhikun , Song Shaobo , Luo Shigang , Zhang Xiaole , Zhang Xingfang , Pei Xiaoyuan , Xu Zhiwei 
Published: November 2024

Purpose
The aging and deterioration of engineering building structures present significant risks to both life and property. Fiber Bragg grating (FBG) sensors, acclaimed for their outstanding reusability, compact form factor, lightweight construction, heightened sensitivity, immunity to electromagnetic interference and exceptional precision, are increasingly being adopted for structural health monitoring in engineering buildings. This research paper aims to evaluate the current challenges faced by FBG sensors in the engineering building industry. It also anticipates future advancements and trends in their development within this field.

Design/methodology/approach
This study centers on five pivotal sectors within the field of structural engineering: bridges, tunnels, pipelines, highways and housing construction. The research delves into the challenges encountered and synthesizes the prospective advancements in each of these areas.

Findings
The exceptional performance of FBG sensors provides an ideal solution for comprehensive monitoring of potential structural damages, deformations and settlements in engineering buildings. However, FBG sensors are challenged by issues such as limited monitoring accuracy, underdeveloped packaging techniques, intricate and time-intensive embedding processes, low survival rates and an indeterminate lifespan.

Originality/value
This introduces an entirely novel perspective. Addressing the current limitations of FBG sensors, this paper envisions their future evolution. FBG sensors are anticipated to advance into sophisticated multi-layer fiber optic sensing networks, each layer encompassing numerous channels. Data integration technologies will consolidate the acquired information, while big data analytics will identify intricate correlations within the datasets. Concurrently, the combination of finite element modeling and neural networks will enable a comprehensive simulation of the adaptability and longevity of FBG sensors in their operational environments.
Effect of adding Ni nanoparticles on the melting characteristics, mechanical properties and intermetallic compound growth of Sn58Bi solder
Authors: Zhang Jiamin , Zhang Liang , Huang Xi , Wu Chuanjiang , Deng Kai , Long Wei-Min 
Published: November 2024

Purpose
This paper aims to investigate the improvement of Sn58Bi solder properties by Ni nanoparticle to provide theoretical support in the field of electronic packaging.

Design/methodology/approach
In this study, nickel nanoparticles (Ni NPs) were doped into Sn58Bi solder as a reinforcing agent to prepare a composite solder. The wettability of composite solder, melting characteristics of solder alloy, microstructure of joints, mechanical properties and intermetallics growth at the interface were investigated.

Findings
Test results show that Ni had little substantial effect on the solders alloy melting temperature yet decreased the alloy undercooling. Notably, Ni enhanced solders wettability on Cu substrates. The spreading area increased by 14% at 0.6 wt.% Ni. The Ni refined the microstructure of Sn58Bi solder joints and inhibited the coarsening of the Bi-rich phase in the solder. At the same time, it also led to the production of free intermetallic compounds, increasing growth of the intermetallic compound (IMC) layer. However, upon surpassing 0.6 wt.% Ni, (Cu, Ni)6Sn5 accumulated and formed irregular clumps in the matrix. The grain size of the IMC layer gradually decreased as Ni was added. In shear tests, the fracture of joints occurred mainly inside the solder matrix. Sn58Bi-0.6Ni joints displayed a 40% rise in shear strength and a 25% rise in Vickers hardness. In addition, the appearance of dimples at the fracture indicated the improved flexibility of joints.

Originality/value
In this paper, Ni nanoparticle with different contents were added to Sn58Bi solder to prepare a composite solder, and the properties of the composite solder were investigated from different perspectives.