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Averaged vibration levels during courier parcel delivery service in small truck in Hungary

Péter Böröcz

Publication Name: Fme Transactions

Publication Date: 2018-01-01

Volume: 46

Issue: 2

Page Range: 211-217

Description:

In recent years there continues to be an increase in courier parcel delivery services due to the growing global online economy and express parcel shipments. It is therefore important to measure and quantify the levels of vibration that occur inside the vehicle during transport, as it can be one of the primary sources of damages. The purpose of this study was to measure the averaged vibration levels in vertical, lateral and longitudinal directions that occur in courier delivery shipments from pickup to delivery involving small trucks over ground road transportation in Hungary. The recorded acceleration data were analyzed in terms of power spectral densities (PSD) and presented with overall Grms. The results of the separated afnd averaged vibration levels provide physical circumstances for various road and load conditions showing those frequency bands that have significant intensities.

Open Access: Yes

DOI: 10.5937/fmet1802211B

Calibration of an Arduino-based low-cost capacitive soil moisture sensor for smart agriculture

G. Milics Viktoria Vona Ákos Bede-Fazekas Márk Kovács István Mihály Kulmány Laszló Bede Ana Beslin Bálint Ambrus Barna Kovács Zsolt Giczi

Publication Name: Journal of Hydrology and Hydromechanics

Publication Date: 2022-09-01

Volume: 70

Issue: 3

Page Range: 330-340

Description:

Agriculture faces several challenges to use the available resources in a more environmentally sustainable manner. One of the most significant is to develop sustainable water management. The modern Internet of Things (IoT) techniques with real-time data collection and visualisation can play an important role in monitoring the readily available moisture in the soil. An automated Arduino-based low-cost capacitive soil moisture sensor has been calibrated and developed for data acquisition. A sensor- and soil-specific calibration was performed for the soil moisture sensors (SKU:SEN0193 - DFROBOT, Shanghai, China). A Repeatability and Reproducibility study was conducted by range of mean methods on clay loam, sandy loam and silt loam soil textures. The calibration process was based on the data provided by the capacitive sensors and the continuously and parallelly measured soil moisture content by the thermogravimetric method. It can be stated that the response of the sensors to changes in soil moisture differs from each other, which was also greatly influenced by different soil textures. Therefore, the calibration according to soil texture was required to ensure adequate measurement accuracy. After the calibration, it was found that a polynomial calibration function (R2 ≥ 0.89) was the most appropriate way for modelling the behaviour of the sensors at different soil textures.

Open Access: Yes

DOI: 10.2478/johh-2022-0014

GENERAL PURPOSE CONDITION ASSESSMENT METHOD THAT CAN BE AUTOMATICALLY OPTIMISED FOR SPECIFIC OBJECTIVES

Adam Bukovics Ferenc Lilik Laszlo T. Koczy

Publication Name: Iet Conference Proceedings

Publication Date: 2024-01-01

Volume: 2024

Issue: 8

Page Range: 30-35

Description:

The maintenance and renovation of old (over 100 years old) residential buildings is one of the priority tasks in the last decades, because - especially in the inner areas of big cities - there are still a lot of them today, and therefore it has a decisive effect on the quality of life of many people. Since the structural design, materials, and condition of these types of residential buildings show many similarities, it is advisable to develop a uniform method for their condition assessment. A condition assessment and decision support model that is suitable for objective and uniform evaluation of this large number of old residential buildings and enables their energy-efficient maintenance and renovation as needed is being developed. The decision model consists of 4 main components (“Project info”, “Knowledge base”, “Preparatory work process”, “Fuzzy system”). For this method, a fuzzy signature-based decision model was developed, that can be used for the condition assessment of old residential buildings and for multi purpose intervention decision support. In this article, the main components are briefly overviewed and the automatic relationships between the individual elements of the project info and how it’s values affect the structure of the fuzzy signature is examined in details. Since the optimal structure of the fuzzy signature helps to make the right decision and the ideal use of the available resources, it is of great importance in terms of energy efficiency and sustainability. The other aim of automation is to make condition assessment even faster and more reliable.

Open Access: Yes

DOI: 10.1049/icp.2024.2677

Simulation of Causal Relations of Stakeholder Management System by Using Fuzzy Cognitive Map Approach - A Comparison of Hungarian and Lithuanian Attitudes

Miklós F. Hatwágner Dalia Susniene Daiva Žostautienė András Torma Laszlo T. Koczy

Publication Name: Procedia Computer Science

Publication Date: 2015-01-01

Volume: 65

Issue: Unknown

Page Range: 880-890

Description:

Stakeholder Relationship Management Systems (SRMS) describe the general behavior of stakeholder relations at organizations. Knowing the interactions between the drivers of the SRMS helps to improve the efficiency of the whole system. This paper investigates the applicability of Fuzzy Cognitive Maps (FCM) to simulate the system dynamics and the causal connections within it. Previous investigations showed that FCM is a proper tool to analyze these relations and with the help of that the business management process and decision making in projects can be supported. The aim of this paper is to present the results of current simulations made with the help of FCM at Lithuanian and Hungarian organizations and to explain the causes of the identified differences. Beside that the paper investigates the influences of the modification of the threshold function's parameter on the final factor states.

Open Access: Yes

DOI: 10.1016/j.procs.2015.09.047

Reinforcing and compatibilizing effect of nano size montmorillonite on high density polyethylene - Polyamide 6 composites

Tamás Ibriksz Hajnalka Hargitai

Publication Name: Iccm International Conferences on Composite Materials

Publication Date: 2013-01-01

Volume: 2013-July

Issue: Unknown

Page Range: 8162-8169

Description:

No description provided

Open Access: Yes

DOI: DOI not available

The Impact of Environmental Sustainability and Digitalization on SMEs’ Financial Performance

Roland Zsolt Szabó Borbála Szedmák

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 529-534

Description:

The complex relationship between sustainability, digitalization, and profitability has received less academic attention, although each of these topics is an important research area on its own. The aim of the research is to understand the effect of environmental sustainability and the usage of management information systems on profitability in the case of SMEs. Based on the answers of 315 SMEs (small and medium-sized enterprises), the article highlights that not all management systems increase profitability. The novelty of the research is that it outlines that the usage of Document Management Systems contributes to profitability while other systems don’t, e.g., the usage of Enterprise Resource Planning systems is not significant, which suggests that its introduction and application no longer represent a competitive advantage; this system alone is not enough. There is an ecosystem of management information systems, the basis of which is document management. The research also highlights that focusing on environmental sustainability has no effect on profitability in the case of Hungarian SMEs, neither in the short term nor in the long term. Thus, it is not a competitive advantage.

Open Access: Yes

DOI: 10.3303/CET23107089

Ride-Sharing Services in Regional Context: Consumer Attitudes and Reuse Intentions in Western Hungary

Boglárka Eisingerné Balassa Dániel Csikor Réka Koteczki Boglárka Eisinger Balassa Ferenc Szauter

Publication Name: Applied Sciences Switzerland

Publication Date: 2026-01-01

Volume: 16

Issue: 2

Page Range: Unknown

Description:

This study examines consumer attitudes and experiences related to ride-sharing services in the Western Transdanubia region of Hungary. Despite the growing global popularity of shared mobility solutions, there is little empirical evidence on regional consumer acceptance patterns in the Hungarian context. Based on a structured questionnaire survey involving 500 respondents, this research explores the relationship between satisfaction with past ride-sharing experiences and the intention to reuse such services in the future. The results reveal a high willingness to reuse among those who have already tried ridesharing, yet the correlation analysis shows that satisfaction dimensions alone are not significant predictors of reuse intention. In contrast, attitudinal factors, such as preference over other transport modes, willingness to make recommendations, and perceived accessibility, exhibit strong correlations with acceptance of ride-sharing. The findings emphasise the key role of attitudes and trust in shaping consumer decisions. The paper contributes to the literature by providing regionally grounded empirical insights and offers practical and policy-level recommendations to support the diffusion of sustainable shared mobility services.

Open Access: Yes

DOI: 10.3390/app16021055

Developing fuzzy cognitive maps for modeling regional waste management systems

Claudiu Radu Pozna Adrienn Buruzs Laszlo T. Koczy

Publication Name: Civil Comp Proceedings

Publication Date: 2013-01-01

Volume: 103

Issue: Unknown

Page Range: Unknown

Description:

Sustainable waste management systems necessarily include environmental, economic, social, institutional, legal and technical aspects. As a result of the incompleteness and multiple uncertainties occurring in sustainable waste management systems, we propose the use of fuzzy cognitive maps (FCM) to support the planning and decision making process. It is obvious that uncertainties involved with waste management represent vagueness rather than probability. Fuzzy sets and fuzzy logic are suitable to construct a formal description and a mathematically manageable model of systems and processes with such uncertainties. In the research described in this paper the FCM model of the Gyor RWMS is established and implemented in such a structure that its parameters and weights were flexibly variable. By observation of the model and its time dependent behaviour we determined under what conditions the long-term sustainability of a regional waste management system could be ensured. In this paper, the interpretation of the results obtained by the FCM model for the actual waste management system are presented. ©Civil-Comp Press, 2013.

Open Access: Yes

DOI: DOI not available

On the temperature rate dependent transformation processes

Lino Costa Imre Czinege Imre Felde Tamás Réti Rafael Colas

Publication Name: Materials Science Forum

Publication Date: 2007-01-01

Volume: 537-538

Issue: Unknown

Page Range: 571-578

Description:

Kinetic models of new types are suggested which are designated primarily to predict the progress of non-isothermal transformations occurring during rapid heating and cooling in alloys. A common feature of each model outlined is that it takes into account not only the varying temperature but also the rate of temperature change on the transformation rate of the process. The two models represented by differential equations are generated by using the concept of virtual kinetic parameters, which can be determined from non-isothermal experiments only. A key property of the virtual parameter "p" involved in the transformation rate equations is that it quantitatively characterizes the temperature rate dependence of the non-isothermal reaction.

Open Access: Yes

DOI: 10.4028/0-87849-426-x.571