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Publications - 6374

Component based hardware-software system for fuzzy controlling of automated vehicles

No authors available

Publication Name: Proceedings of SEFI and IGIP Joint Annual Conference 2007: Joining Forces in Engineering Educations Towards Excellence

Publication Date: 2007-01-01

Volume:

Issue:

Page Range: 397-398

Description:

Open Access: No

DOI: DOI not available

Investigation of the spatial distribution algorithm of the traffic flow analysis and of the entity flow-phase analysis

No authors available

Publication Name: ESM 2007 - 2007 European Simulation and Modelling Conference: Modelling and Simulation 2007

Publication Date: 2007-01-01

Volume:

Issue:

Page Range: 291-295

Description:

This paper investigates an important algorithm that is used in both the Traffic-Flow Analysis and the Entity Flow-phase Analysis. These methods are similar to each other and can be used for the fast and approximate (performance) analysis of Information and Communication Technology (ICT) systems and Business Process (BP) systems. Both methods contain an algorithm for the spatial distribution of the traffic (or entities) in the system. It is shown how the error of the spatial distribution can be measured, and the effect of the so called size of routing unit parameter of two algorithms is investigated.

Open Access: No

DOI: DOI not available

Effects of information technology investments on the efficiency of logistic processes

No authors available

Publication Name: 14th World Congress on Intelligent Transport Systems, ITS 2007

Publication Date: 2007-01-01

Volume: 7

Issue:

Page Range: 5238-5248

Description:

The output of logistics is performed by the appropriate and proportional use of material and information flows. Important issue is to determine the proper equilibrium between the resources devoted to the two main system elements. The necessity of continuous improvement of informatics and logistic flows is not questionable since the efficiency of logistics control systems can be increased by reducing the time gap between the time of gaining the data and use of information for planning purpose. In different logistics subsystems the role and importance of time gaps differ. Having generally overviewed the subsystems the papers introduce the efficiency of informatics based on Cobb-Douglas production function in order to spot the elements of logistics where the reduction of time gap is of economic interest, that is under what conditions can the IT developments and investment be efficient. Finally a draft framework is described as a general solution that can use informatic means in order to increase road transport system capacity usage.

Open Access: No

DOI: DOI not available

Improved Hybrid Model to Text Detection by Using k-means and mser-swt with CNN

Ibrahim Alameri Naseer Al-Imareen Aymen Adil Fatimah I. Abdulsahib

Publication Name: International Conference on Electrical Computer Communications and Mechatronics Engineering Iceccme 2023

Publication Date: 2023-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Detection of textual data from scene text images is a very thought-provoking issue in computer graphics and visualization. The challenges of text detection come from the nature of images used to detect text from them. The technology proposed is comprised of three main stages: Blurring, transformation to the frequency domain, and de-blurring in the frequency domain as preprocessing procedures; a proposed hybrid model for text detection using k-means clustering and text bounding boxes is used, and (CNN) framework used to classify into textual and non-textual regions. We used the Stroke Width Technique (SWT) when increasing the value of k by analyzing the width of the strokes in the image and thus reducing the potential textual regions resulting from the MSER, which leads to reducing the time and increasing the accuracy of detection, a convolutional neural network (CNN) algorithm is used to perform a classification of all bounding boxes. For the suggested technique's evaluation, results are collected on three popular datasets, including SVT, IIIT5K, ICDAR 2013, and ICDAR 2015. The datasets for SVT, IIIT5K, ICDAR 2013, and ICDAR 2015 each have classification results of 87.41.

Open Access: Yes

DOI: 10.1109/ICECCME57830.2023.10252377

Combination and interworking of four modelling methods for infocommunications and business process systems

No authors available

Publication Name: 5th International Industrial Simulation Conference 2007, ISC 2007

Publication Date: 2007-01-01

Volume:

Issue:

Page Range: 350-354

Description:

This paper describes how we can use four modelling methods together. We model Information and Communication Technology (ICT) systems and Business Process (BP) systems. The aim of the modelling is to experiment with the models, that is, simulation. Two of the methods are the detailed modelling of the ICT and of the BP systems, as we usually do that for discrete event simulation. The other two methods are those that enable us to make rapid performance analysis of these systems, namely Traffic-Flow Analysis (TEA) for ICT systems and Entity Flow-phase Analysis (EFA) for BP systems. The solutions for the combination and interworking of these methods are described.

Open Access: No

DOI: DOI not available

Particle-associated PAHs in urban and rural ambient air samples

Andrea Szabó Nagy János Szabó

Publication Name: World Congress on Civil Structural and Environmental Engineering

Publication Date: 2018-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

The purpose of this study was to evaluate and compare the concentration levels and distributions of airborne polycyclic aromatic hydrocarbons (PAHs) between urban area of Gyor and the nearest rural area of Sarro´d (Hungary). Nineteen selected polycyclic aromatic hydrocarbons (PAHs) including the 16 priority US EPA PAH compounds, 2-methylnaphthalene, benzo(j)fluoranthene and benzo(e)pyrene in PM10 aerosol samples were determined under the authority of the Government Office for Gyor-Moson-Sopron County, Environmental Protection Laboratory and seasonal distributions were examined based on long-term monitoring data. Moreover, the concentration levels of fine (PM2.5) particle-associated PAHs measured in Gyor in a heating season are also discussed. About 2 times higher Total PAHs concentrations were obtained for urban samples compared to the rural samples on average. All of the investigated PAH compounds were identified in the PM10 aerosol samples. PAHs fluctuate significantly in all years with higher means and peak concentrations in the winter and autumn compared to that of spring or summer times at both monitoring sites. Approximately 27 and 18 times higher benzo(a)pyrene (BaP) toxic equivalence quotient (TEQ) concentrations in PM10 in urban and rural sites were detected in the heating seasons, respectively. Acenaphthene and fluorene were not detected in the PM2.5 samples. The dominant PM2.5-bound PAH compounds were indeno(1,2,3-cd)pyrene and sum of three benzofluoranthene isomers followed by benzo(ghi)perylene and BaP. Relatively high mean TEQ concentration level were observed for PM2.5-bound PAHs in the examined heating season.

Open Access: Yes

DOI: 10.11159/awspt18.101

Takagi-Sugeno fuzzy controller for a magnetic levitation system laboratory equipment

Claudiu Radu Pozna Claudia Adina Dragos Jozsef K. Tar Raul Gherasim Bulzan Radu Emil Precup Stefan Preitl

Publication Name: Iccc Conti 2010 IEEE International Joint Conferences on Computational Cybernetics and Technical Informatics Proceedings

Publication Date: 2010-08-06

Volume: Unknown

Issue: Unknown

Page Range: 55-60

Description:

This paper presents the design and the implementation of two control solutions applied to a magnetic levitation system laboratory equipment. The first solution deals with a state feedback control structure to stabilize the controlled plant which is the inner control loop for the cascade control system structure proposed as the second solution. The second solution is based on a TakagiSugeno fuzzy controller in the outer control loop to ensure the zero steady-state control errors. Simulation and real time experimental results are included to illustrate the performance of the control systems and to validate the two control solutions in regulation and tracking. © 2010 IEEE.

Open Access: Yes

DOI: 10.1109/ICCCYB.2010.5491219

Comparative study of the corrosion and surface chemical effects of the decontamination technologies

Krisztián Radó Gábor Patek Bernadett Baja Emese H. Deák Andrea Szabó Nagy Varga Kálmán Zoltán Németh Schunk János

Publication Name: Journal of Radioanalytical and Nuclear Chemistry

Publication Date: 2010-12-01

Volume: 286

Issue: 3

Page Range: 815-821

Description:

Decontamination technologies are generally developed to reduce the collective dose of the maintenance and operation personnel at nuclear power plants (NPP). The highest efficiency (i.e., the highest decontamination factors) available without detrimental modification of the treated surface of structural material is the most important goal in the course of the application of a decontamination technology. At the Paks NPP the AP-CITROX procedure has been utilized for the decontamination of the primary coolant circuit's components (e.g., main circulating pump (MCP) and steam generators (SGs)). Our previous studies have revealed that a 'hybrid' structure of the amorphous and crystalline phases was formed in the outermost surface region of the austenitic stainless steel tubes of SGs as an undesired consequence of the industrial application of the AP-CITROX decontamination technology during the period of 1993-2001. In this paper, we report some comparative findings on the corrosion and surface chemical effects of the AP-CITROX procedure and the novel decontamination technology elaborated at our institution. On optimizing the operational parameters the latter technology may become suitable for the effective decontamination of both dismountable (e.g., MCP swivel) and separable (e.g., SGs) equipments. For this purpose experiments were performed. In this laboratory scale experiments, the passivity, morphology and chemical compositions of the treated surfaces of tube specimens were investigated by voltammetry, and SEM-EDX methods, respectively. The SEM-EDX results have revealed that the oxide removal is surprisingly uniform even after 2 or 3 consecutive cycles. The electrochemical studies have provided evidences that no unfavorable tendencies in the general corrosion state of the tube samples can be detected in the course of the chemical treatments. © 2010 Akadémiai Kiadó, Budapest, Hungary.

Open Access: Yes

DOI: 10.1007/s10967-010-0761-8

Sustainability accounting for greenhouse gas emissions measurement using the GREET LCA model: practical review of automotive ESG reporting

Árpád Tóth Alex Suta Péter Molnár

Publication Name: Clean Technologies and Environmental Policy

Publication Date: 2024-05-01

Volume: 26

Issue: 5

Page Range: 1631-1642

Description:

The production and personal use of passenger vehicles contribute significantly to greenhouse gas (GHG) emissions, making personal transport a major contributor. In response to increasing pressure from regulators and consumers to lower emissions, original equipment manufacturers (OEMs) have introduced alternative powertrains, such as battery electric vehicles (BEVs). To assess the economic and environmental feasibility of BEVs, OEMs conduct various life cycle assessment (LCA) approaches as part of their internal management practices. However, the public presentation of their results is often ambiguous and of unverifiable quality. This study conducts a review of sustainability impact reporting using the GREET model, which is based on the total vehicle life cycle. The paper provides a summary of the input data requirements for validating emissions from both the fuel and vehicle cycles as part of the proposed model. The availability of the model components was tested against actual public corporate environmental, social and governance reporting disclosures of the largest global automotive OEMs, indicating a deficit in the public presentation of essential sustainability information. The implications of the research suggest that LCA models could benefit sustainability accounting by incorporating proper tagging during accounting practices and taking advantage of digital accounting and reporting practices such as the extensible business reporting language (XBRL). By further developing the model, sustainability reporting can benefit from its structure and workflow, thus ensuring improved information validity for stakeholders. Graphical abstract: (Figure presented.)

Open Access: Yes

DOI: 10.1007/s10098-023-02588-y