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Sustainability Aspects of Administrative Process Management: a Case Study Analysis

Boglárka Eisingerné Balassa László Buics

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 481-486

Description:

This article offers a detailed analysis of the university enrollment process from a process management perspective, focusing on sustainability aspects like the social cost of carbon. The study utilizes process visualization techniques, such as P-Graphs, to explore how administrative processes can be optimized to reduce environmental impact while maintaining efficiency. Enrollment is a vital yet complex component of university operations, often neglecting sustainability in traditional management approaches. Through a case study, this research demonstrates how process visualization can identify inefficiencies in the enrollment process and suggest improvements. By incorporating P-Graphs, the study evaluates sustainability metrics like carbon costs, guiding decision-makers in reducing environmental harm. The findings reveal that the current enrollment system is unsustainable in terms of operating costs, human factors, and CO2 emissions. This research underscores the importance of integrating environmental considerations into administrative processes, showing that universities can enhance environmental performance while continuing to provide quality education by combining process management with sustainability principles.

Open Access: Yes

DOI: 10.3303/CET24114081

Case study on the tactical level of an autonomous vehicle control

Claudiu Pozna Csaba Antonya Ernő Horváth

Publication Name: International Conference on Electrical Computer Communications and Mechatronics Engineering Iceccme 2021

Publication Date: 2021-10-07

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

In this paper, a case study is presented on the tactical level of autonomous vehicle control. Inspired by the human driver behavior, vehicle control is structured in a hierarchy on three levels: the strategic, the tactical, and the operational level. These are connected by specific links, and based on prior information and models, are transforming the input data from the environment into actuator commands on the various degree of freedom of the vehicle. The case study is presenting a simulation of a scenario, detailing the vehicle models with sensors, the collection of behavior, and the behavior selector.

Open Access: Yes

DOI: 10.1109/ICECCME52200.2021.9590868

Propagation of Laser-Driven Electromagnetic Pulses in Laser Target Areas

Christos Kamperidis Luca Volpe Massimo De Marco Mate Liszi Istvan Drotar Kwinten Nelissen Giancarlo Gatti

Publication Name: EMC Europe 2019 2019 International Symposium on Electromagnetic Compatibility

Publication Date: 2019-09-01

Volume: Unknown

Issue: Unknown

Page Range: 802-806

Description:

During high intense laser target interaction a strong electromagnetic pulse (EMP) is generated which can potentially disturb the well performing of the experiment. The electromagnetic interference (EMI) due to the EMP not only affects devices present in the vacuum chamber but also in the target area where it may compromise the performance or operation of electronics and device controllers.In this work we report the measurements of EMP inside the laser target area at Centro de Laseres Pulsados (CLPU) during high intense laser-target interaction experiments. The experimental results show how the amplitude and spectrum of the EMP in the target area is different from the one inside the target chamber (TC). At last Finite element method (FEM) simulation results are shown and compared with experimental results.

Open Access: Yes

DOI: 10.1109/EMCEurope.2019.8871958

Fuzzy control of self-balancing robots: A control laboratory project

Péter Odry Akos Odry Imre J. Rudas Robert Fullér

Publication Name: Computer Applications in Engineering Education

Publication Date: 2020-05-01

Volume: 28

Issue: 3

Page Range: 512-535

Description:

This paper presents a novel control laboratory project that provides hands-on experience in feedback control concepts (embedded control systems) through dedicated assignments, with a particular focus on the design and implementation of fuzzy control. The project is structured around an inexpensive, portable self-balancing robot (SBR), whose embedded system is realized using commercially available breakout boards as the first assignment. For the stabilization of the plant, students are guided to execute the essential stages of control system design, from system modeling and parameter optimization, over basic or advanced control strategy design in the MATLAB/Simulink environment, to both implementation and validation of the closed loop on the real robot. To demonstrate and foster the application of fuzzy logic, the second part of the paper introduces a simple control strategy based on fuzzy logic controllers. Then, a lookup table-based implementation technique is described for the demonstration of manual interfacing and embedded coding of fuzzy control strategies. The proposed methods are clear and straightforward; they highly foster the understanding of feedback control techniques and allow students to gain vast knowledge in the practical implementations of control systems.

Open Access: Yes

DOI: 10.1002/cae.22219

A Study of High-Emission Industries: How Policy, Strategy, and Technology Shape Corporate Social Responsibility Toward Carbon Neutrality

Enrico Battisti Adeel Luqman Shalini Talwar Attila Kurucz Hawazen Almugren

Publication Name: Corporate Social Responsibility and Environmental Management

Publication Date: 2026-07-01

Volume: 33

Issue: 4

Page Range: 5630-5651

Description:

The extant carbon neutrality (CN) literature largely offers macro- or meso-level analyses, providing limited insights into implementation experiences that could inform granular policymaking and industry strategies. To address this gap, we examine the lived CN experiences of firms in the transportation, energy, manufacturing, and construction sectors. Using multi-wave qualitative data analyzed through Gioia's approach, we identify policy, strategic practices, carbon-offsetting technologies, and emission-reduction approaches as key drivers of CN implementation. Notably, we establish the microfoundations of CN implementation by uncovering the nuanced roles of strategic, managerial, and operational levels as bridging mechanisms that translate policy mandates into firm-level decisions. Furthermore, we extend the theoretical understanding of the dual role of policy at the firm level, acting both as an enabling driver and a constraining factor. Finally, we propose the STEP framework, which conceptualizes CN implementation as a dynamic ecosystem of interacting forces operating within a feedback loop for continuous improvement and recalibration.

Open Access: Yes

DOI: 10.1002/csr.70438

Friction and Wear of the Piston Ring - Cylinder Liner System with Artificially Aged Ultra-low Viscosity Engine Oils

András Lajos Nagy

Publication Name: Periodica Polytechnica Transportation Engineering

Publication Date: 2024-01-01

Volume: 52

Issue: 2

Page Range: 190-198

Description:

This study aims to investigate the performance of artificially aged prototype engine oils through friction and wear experiments. Experiments were performed on a piston ring - cylinder liner model system with boundary conditions derived from real-life operating conditions. The experimental design implemented two prototype oils (SAE 0W-12 and 0W-16) in unaltered and artificially aged form. An additional fully formulated off-the-shelf engine oil (SAE 0W-20) was also aged and analyzed as reference. Oil samples were artificially aged in a custom rig, to simulate long-term in-engine use through thermal cycling at 180 °C. Fourier Transformed Infrared Spectroscopy of the lubricant samples highlighted a depletion of zinc dialkyl-ditiophosphate antiwear additives in all cases, which is comparable to a selected in-service oil. Oxidation was also measurable, albeit lower compared to the in-service sample. Averaged friction coefficients showed a ranking of aged 0W-12 < aged 0W-16 < unaltered 0W-12 < unaltered 0W-16. A decrease in surface roughness was experienced with aged oil samples, whereas unaltered 0W-16 oil produced an unexpected transition in the wear phenomenon and resulted in severe wear.

Open Access: Yes

DOI: 10.3311/PPtr.22918

An Analysis of Personalized Learning Opportunities in 3D VR

Ildiko Horvath

Publication Name: Frontiers in Computer Science

Publication Date: 2021-09-20

Volume: 3

Issue: Unknown

Page Range: Unknown

Description:

Due to its constantly developing technological background, VR and AR technology has been gaining increasing popularity not just in industry or business but in education as well. Research in the field of Cognitive Infocommunications (CogInfoCom) shows that using existing digital technologies, online collaboration and cooperation technologies in 3D VR supports cognitive processes, including the finding, processing, memorization and recalling of information. 3D VR environments are also capable of providing users with a much higher level of comprehension when it comes to sharing and interpreting digital workflows. The paper presents a study carried out with the participation of 90 students. The aim of this study is to investigate how the application of 3D VR platforms as personalized educational environments can also increase VR learning efficiency. Besides considering participants’ test performance, metrics such as results on visual, auditory and reading-based learning tests for information acquisition, as well as responses on Kolb’s learning styles questionnaires are taken into consideration. The participants’ learning styles, information acquisition habits were also observed, allowing us to create and offer a variety of learning pathways based on a variety of content types in the 3D VR environment. The students within the study were divided into two groups: a test group receiving personalized training in the MaxWhere 3D VR classroom, and a control group that studied in a general MaxWhere 3D VR space. This research applies both quantitative and qualitative methods to report findings. The goal was to create adaptive learning environments capable of deriving models of learners and providing personalized learning experiences. We studied the correlation between effectiveness of the tasks and Kolb’s learning styles. The study shows the major importance of choosing the optimal task type regarding each Kolb learning style and personalized learning environment. The MaxWhere 3D spaces show a high potential for personalizing VR education. The non-intrusive guiding capabilities of VR environments and of the educational content integrated in the 3D VR spaces were very successful, because the students were able to score 20 percent higher on the tests after studying in VR than after using traditional educational tools. Students also performed the same tasks with 8-10 percent faster response times.

Open Access: Yes

DOI: 10.3389/fcomp.2021.673826

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

Design of 2D rrsst system by FEM with T, φ-φ Potential formulation

Miklós Kuczmann

Publication Name: Pollack Periodica

Publication Date: 2008-04-01

Volume: 3

Issue: 1

Page Range: 67-80

Description:

The paper deals with the numerical analysis of a vector hysteresis measurement system, which is now under construction. The measurement set up consists of an induction motor whose rotor has been removed, and its windings have been replaced to a special two phases one, which can generate a homogeneous magnetic field inside the motor. A round shaped specimen can be inserted into the arrangement. The two orthogonal components of the magnetic field intensity and of the magnetic flux density vectors can be measured by H-coils and B-coils, respectively. The Finite Element Method (FEM) with the T, φ-φ potential formulation has been applied in the simulations. The vector hysteresis property of the specimen has been approximated by the isotropic vector Preisach model, finally the nonlinear problem has been solved by the convergent fixed point technique. The aim of the present work is to focus on the design aspects of this kind of measurement system. © 2008 Akadémiai Kiadó.

Open Access: Yes

DOI: 10.1556/Pollack.3.2008.1.6