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Found 6674 publications

Potentials and challenges of augmented reality smart glasses in logistics and supply chain management: a systematic literature review

Horst Treiblmaier John G. Keogh Abderahman Rejeb G. Keong Leong

Publication Name: International Journal of Production Research

Publication Date: 2021-01-01

Volume: 59

Issue: 12

Page Range: 3747-3776

Description:

This study investigates the potentials and challenges of applying augmented reality (AR) smart glasses in logistics and supply chain management (SCM). A systematic literature review on AR smart glasses was conducted to provide a comprehensive synthesis of what has been published in the literature to capture the dynamics surrounding this technology and identify areas deserving of further academic attention. To summarise the latest developments in this field, eighty-two (82) publications were selected and thoroughly analysed. In terms of research findings, four main clusters of potential benefits were identified: visualisation, interaction, user convenience, and navigation. In contrast, the challenges posed by smart glasses in the logistics field were clustered around technical, organisational, and ergonomic considerations. The accumulation of knowledge and actionable insights in this study will benefit both academics and practitioners interested in this emerging wearable technology segment. As the first attempt to explore the importance of smart glasses in logistics and SCM activities, this study offers significant contributions to the literature by codifying extant knowledge on AR smart glasses and setting forth an agenda for future research.

Open Access: Yes

DOI: 10.1080/00207543.2021.1876942

Spectral Analysis of the Lateral Dynamics of Road Vehicles †

David Jozsa Dániel Pup Gyorgy Istenes Gergo Igneczi József Bokor

Publication Name: Engineering Proceedings

Publication Date: 2025-01-01

Volume: 113

Issue: 1

Page Range: Unknown

Description:

In this paper, a time domain and a spectral analysis of the lateral dynamics of a Lexus passenger car are presented. Measurements were made of the vehicle’s lateral acceleration and steering angle. The aim of the measurements is to understand the vehicle’s lateral dynamics during different cornering maneuvers. For this purpose, part of the measurements is performed with a driver and the other part with autonomous control. The data processed and analyzed in this research can be used to determine the nature of the lateral dynamics, which is essential to establishing a mathematical relationship between the measured signals. This will allow the identification and modeling of vehicle dynamics, which is key to the development and optimization of autonomous vehicle control systems.

Open Access: Yes

DOI: 10.3390/engproc2025113063

Classification of preeclampsia according to molecular clusters with the goal of achieving personalized prevention

Offer Erez Adi L. Tarca Nándor Gábor Than Dániel Györffy Zoltán Papp Simona W. Rossi Sándor Nagy Roberto Romero Máté Posta Nándor Ács Gábor Szalai András Szilágyi Olga Török Petronella Hupuczi

Publication Name: Journal of Reproductive Immunology

Publication Date: 2024-02-01

Volume: 161

Issue: Unknown

Page Range: Unknown

Description:

The prevention of pre-eclampsia is difficult due to the syndromic nature and multiple underlying mechanisms of this severe complication of pregnancy. The current clinical distinction between early- and late-onset disease, although clinically useful, does not reflect the true nature and complexity of the pathologic processes leading to pre-eclampsia. The current gaps in knowledge on the heterogeneous molecular pathways of this syndrome and the lack of adequate, specific diagnostic methods are major obstacles to early screening and tailored preventive strategies. The development of novel diagnostic tools for detecting the activation of the identified disease pathways would enable early, accurate screening and personalized preventive therapies. We implemented a holistic approach that includes the utilization of different proteomic profiling methods of maternal plasma samples collected from various ethnic populations and the application of systems biology analysis to plasma proteomic, maternal demographic, clinical characteristic, and placental histopathologic data. This approach enabled the identification of four molecular subclasses of pre-eclampsia in which distinct and shared disease mechanisms are activated. The current review summarizes the results and conclusions from these studies and the research and clinical implications of our findings.

Open Access: Yes

DOI: 10.1016/j.jri.2023.104172

The impact of data accuracy for efficient and feasible routing plans

Adrian Horváth

Publication Name: Urban Freight Transportation Systems

Publication Date: 2019-01-01

Volume: Unknown

Issue: Unknown

Page Range: 101-114

Description:

Today, more and more problems, such as labor shortages, customer expectations, strict legal environment, and traffic jams, are challenging logistics service providers. Based on practical experience, a prerequisite for efficient distribution is the accurate routing. For this, however, it is essential to use accurate data. This chapter summarizes and presents the most important data needed for efficient routing and the accuracy classes of data. Then, through an example of a logistics service provider’s data, it details the required data and their typical accuracy. With this data and the widely used routing software Paragon, the results of the routing will be compared. Finally, this chapter summarizes the relationship between the accuracy of the data and the usability of the plans. On this basis, proposals for logistics service providers to support efficient operation are made.

Open Access: Yes

DOI: 10.1016/B978-0-12-817362-6.00006-9

Model Identification Based on Sparse or Non-Uniform Datasets using Tensor Product Function Manipulations

Adam B. Csapo

Publication Name: Gpmc 2020 2nd IEEE International Conference on Gridding and Polytope Based Modeling and Control Proceedings

Publication Date: 2020-11-19

Volume: Unknown

Issue: Unknown

Page Range: 49-52

Description:

This paper presents an approach for creating tensor product (TP) models based on sparse or non-uniform samples representing arbitrary datasets, and for manipulating the resulting TP structure to further identify the models behind the datasets. Given the usefulness of TP models in merging together closed algebraic formulae and tensor representations, it is argued that the proposed approach can be applied towards understanding the underlying complexity of a given dataset, while iteratively arriving at a model for the process that generated it. The key idea behind the approach is demonstrated using a dataset on sound pressure levels generated by different-sized airfoils in a wind tunnel.

Open Access: Yes

DOI: 10.1109/GPMC50267.2020.9333816

High prevalence of burnout among midwives in Hungary: High job demands and low resources as potential persistent stressors, a focus on prevention

Mihály Dió Ibolya Lipienné Krémer József Vitrai Szilvia Ádám Zsuzsanna Soósné Kiss

Publication Name: Heliyon

Publication Date: 2024-01-30

Volume: 10

Issue: 2

Page Range: Unknown

Description:

Background: Midwifery practice in Hungary is characterized by chronic stress, which may in turn lead to burnout and impaired perinatal care. However, little is known about the degree and potential stressors of burnout, which hinder the development of strategies to promote well-being among midwives in Hungary. Aim: To assess the prevalence of burnout and identify persistent individual and occupational stressors among midwives in Hungary over the past decade to inform prevention. Methods: We conducted two cross-sectional studies among midwives in 2014 and 2022. We used the Maslach Burnout Inventory to assess burnout (emotional exhaustion, depersonalization, and personal accomplishment) over time. We also collected data on individual and work characteristics. We performed a multivariate regression analysis to explore associations between burnout and respondents' characteristics. Findings: The degree and prevalence of emotional exhaustion among midwives increased significantly between 2014 (N = 224) and 2022 (N = 152). High workload, not feeling valued at work, poorly perceived health status and work dissatisfaction emerged as a significant positive correlate of emotional exhaustion or depersonalization in both studies. Living alone showed both a positive and inverse association with burnout in 2014 and 2022, respectively. Work satisfaction was a positive correlate of personal accomplishment in both studies. Conclusions: Our results add to and confirm the growing body of evidence about the high prevalence of burnout among midwives in Hungary. We identified potential risk factors and outcomes of burnout, which remained unchanged over time. To prevent or reduce burnout among midwives, future interventions should focus on addressing these potential persistent risk factors. However, the time-varying role of factors influencing burnout makes it advisable to review preventive interventions from time to time.

Open Access: Yes

DOI: 10.1016/j.heliyon.2024.e24495

Assessing the Sustainability of Electric and Hybrid Buses: A Life Cycle Assessment Approach to Energy Consumption in Usage

Agoston Winkler Balázs Horváth Xiao Li

Publication Name: Energies

Publication Date: 2025-03-01

Volume: 18

Issue: 6

Page Range: Unknown

Description:

The global adoption of battery electric vehicles (EVs) and hybrid electric vehicles (HEVs) as a substitute for internal combustion engine cars (ICEs) in various nations offers a substantial opportunity to reduce carbon dioxide (CO2) emissions from land transportation. EVs are fitted with an energy conversion system that efficiently converts stored energy into propulsion, referred to as “tank-to-wheel (TTW) conversion”. Battery-electric vehicles have a significant advantage in that their exhaust system does not produce any pollutants. This hypothesis is equally relevant to public transport. Despite their higher upfront cost, electric buses contribute significantly to environmental sustainability during their operation. This study aimed to evaluate the environmental sustainability of electric buses during their operational phase by utilizing the life cycle assessment (LCA) technique. This paper used the MATLAB R2021b code to ascertain the mean load of the buses during their operation. The energy consumption of battery electric and hybrid electric buses was evaluated using the WLTP Class 2 standard, which refers to vehicles with a power-to-mass ratio between 22 and 34 W/kg, overing four speed phases (low, medium, high, extra high) with speeds up to 131.3 km/h. The code was used to calculate the energy consumption levels for the complete test cycle. The code adopts an idealized rectangular blind box model, disregarding the intricate design of contemporary buses to streamline the computational procedure. Simulating realistic test periods of 1800 s resulted in an average consumption of 1.451 kWh per km for electric buses and an average of 25.3 L per 100 km for hybrid buses. Finally, through an examination of the structure of the Hungarian power system utilization, it was demonstrated that electrification is a more appropriate method for achieving the emission reduction goals during the utilization phase.

Open Access: Yes

DOI: 10.3390/en18061545

As close as possible to the ungraspable - Somaesthetical and Deleuzian investigations on the Choreographical work of Pál Frenák

Nora Horvath

Publication Name: Pragmatism Today

Publication Date: 2018-01-01

Volume: 9

Issue: 1

Page Range: 80-90

Description:

According to Shusterman with the notion of somaesthetics he wants to remind the contemporary readers that "philosophy could and should be practiced with one's body rather than being confined to "the life of the mind" (Shusterman 2012, 141.)" Consequently a philosophy can be expressible by one's body especially by a dancer's body or by a choreographer's work. I consider it to be a problem that a performance is not only the artwork of a creator but also the embodiment of the choreographer's philosophy. Not every dance choreographer has his own philosophy but those who have a characteristic "universe" and a peculiar style. I am going to reveal Pál Frenák's dance philosophy of somatic style while searching for that "existential weight" behind his works that is a crucial element in his artistic universe. How is it possible to approach a philosophy emotionally? Where is the limit between sense and sensibility in the reception of a dance performance? Instead of the analysis of concrete meanings of movements in one piece of art, dance philosophy should examine those processes that lead to a certain set of emotions and associations. I feel that conversation on contemporary dance would be a relevant topic in relation to somaesthetics. In my paper, I would like to attune somaesthetics and the Deleuzian sign theory to show the spiritual richness of the oeuvre of Pál Frenák.

Open Access: Yes

DOI: DOI not available

Family and carrier role conflicts of female health professionals

Kovácsné Tóth Ágnes Feith Helga Judit Balázs Péter

Publication Name: Lege Artis Medicinae

Publication Date: 2008-05-01

Volume: 18

Issue: 5

Page Range: 413-418

Description:

The aim of this study was to gain statistically founded information about female health care workers' career and family role burden and role-conflicts in relation to their general health status. SUBJECTS AND METHODS - The survey was conducted among women doctors and college-degree nurses working in in-patient institutes and was based on self-provided information obtained from mailed questionnaires. The response rate was 45.54% (n=409). RESULTS - The exclusively career-oriented or family-oriented ways of life were both dismissed by a larger proportion of respondents, as these were considered equally important. Work-to-family conflicts were reported by 44.8%, mainly mentioning night shifts, lack of time and too much workload as a cause. One in five (19.5%) respondent reported family-to-work conflicts. The role conflicts correlate with life and career satisfaction, plans to leave profession, health status and the prevalence of psychosomatic symptoms. CONCLUSION - The results suggest the presence of many conflict points between the family and career roles of health care professionals working in the Hungarian healthcare system. The role-conflict had an explicitly negative effect on the respondents' general satisfaction and health status. The importance of this subject warrants further analytic and comparative investigations.

Open Access: Yes

DOI: DOI not available