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Publications - 6515

Interactive training and modeling environment for considering pallet setup features in storage location assignment of order picking zone

János Botzheim Tamás Bódis Kitti Udvardy

Publication Name: 10th France Japan Congress 8th Europe Asia Congress on Mecatronics Mecatronics 2014

Publication Date: 2014-01-22

Volume: Unknown

Issue: Unknown

Page Range: 64-69

Description:

Order picking is the most labor-intensive and costly activities in many warehouses by consuming ca. 60 % of the total operating expenses. Order picking development strategies mostly concentrate on warehouse layout, storage assignment policy, routing, zoning and on batching methods, while the physical parameters of the products - which are hardly ever taken into account - do also have a significant impact on the processes. Researchers of the pallet-loading problem could provide a wider horizon on considerable parameters, but their results are rarely implemented into order picking processes. In order to design a successful and optimal order picking system, considering all influential parameters is inevitable, since all of them are strongly connected to each other. This paper introduces an interactive training and modeling tool, which allows us to model, test, analyze and to evaluate order picking algorithms by taking numerous influencing factors into consideration. We describe an application of the simulation environment designed for highlighting the importance of physical product parameters in order picking performance.

Open Access: Yes

DOI: 10.1109/MECATRONICS.2014.7018613

CBAM as a levelled playing field? Analysis of the CBAM system' economic regulatory role from the perspective of public finance and financial law

Gabriella Csűrös László Pardavi

Publication Name: Rechtskultur

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: 483-498

Description:

The European Union (EU) aims to reduce greenhouse gas (GHG) emissions by 55% by 2030 and achieve climate neutrality by 2050, in line with the Paris Agreement. The European Green Deal (2019) and the Fit for 55 package (2021) set legislative reforms to achieve these targets. A key element is the EU Emission Trading System (EU ETS), operating since 2005. However, increasing GHG emissions from imports prompted the adoption of the Carbon Border Adjustment Mechanism (CBAM) to address carbon leakage and level the playing field between domestic producers (paying ETS allowances) and importers (buying CBAM certificates). The CBAM is a tariff with environmental purpose and acts as an European CO2 tax, requiring importers to pay a carbon price equivalent to the EU’s internal carbon price and encouraging CO2 emission reductions. It is an equalizing system protecting EU producers and promote global adoption of green technologies. This study examines CBAM from public finance and financial law perspective, assessing its impact on global trade flows, the economic regulatory role of customs and CBAM and its impact on public revenue. The study focuses on the economies most exposed to the CBAM and the redistribution opportunities arising from ETS and CBAM system. It evaluates CBAM’s legal framework, compatibility with tax regulations, its implementation by Member States (with a case study of Hungary) and potential international disputes and adherence to World Trade Organization (WTO) rules. For Hungary, CBAM strengthens climate strategy and competitiveness in global markets. The study highlights the need for a robust legal and regulatory framework to ensure effective CBAM implementation while minimizing negative impacts. It calls for further research and international cooperation to develop comprehensive guidelines for CBAM integration into national and global policies.

Open Access: Yes

DOI: DOI not available

Long-term trends in the corrosion state and surface properties of the stainless steel tubes of steam generators decontaminated chemically in VVER-type nuclear reactors

D. Oravetz Gábor Patek Bernadett Baja P. Kádár N. A. Szabó Varga Kálmán Zoltán Németh Schunk János Z. Homonnay E. Kuzmann

Publication Name: Corrosion Science

Publication Date: 2009-12-01

Volume: 51

Issue: 12

Page Range: 2831-2839

Description:

At some VVER-type pressurized water nuclear reactors (Russian-type PWR) different versions of the so-called AP-CITROX method have been widely used for the chemical decontamination of the heat exchanger tubes of steam generators. In the period of 2000-2007, within the frame of a joint-project dealing with the comprehensive investigation of the corrosion state of the steam generators of the Paks Nuclear Power Plant, Hungary, effects of the AP-CITROX chemical decontamination procedure on the corrosion and surface characteristics of the heat exchanger tubes have been studied. These studies provide evidences that some adverse features (formation of a "hybrid" layer with accelerated corrosion rate and great mobility) can be detected after 1-3 years of applying the AP-CITROX procedure. The present work is a continuation of the above program and focused on the long-term trends in the corrosion state and structure of protective oxide-layer grown on the decontaminated surfaces. The results of electrochemical (voltammetric), surface analytical (SEM-EDX, CEMS) and mobility (ICP-OES) studies have revealed that (1) some beneficial changes in the corrosion characteristics, mobility and chemical composition of the inner surfaces of decontaminated heat exchanger tubes can be observed in the long run, and (2) the passivity of the oxide-layers formed on decontaminated surfaces of steel tubes exhibits favorable tendency after 4-7 years under normal operation conditions. © 2009 Elsevier Ltd. All rights reserved.

Open Access: Yes

DOI: 10.1016/j.corsci.2009.08.007

The three hidden pillars of the world: On the unconscious synchronistic 'cognitive cooperation' of C.G. Jung, W. Pauli and C. Kerényi Part II: On the late collaborations of the three great minds (1954-57)

Péter Várlaki Peter Baranyi

Publication Name: 5th IEEE International Conference on Cognitive Infocommunications Coginfocom 2014 Proceedings

Publication Date: 2014-01-23

Volume: Unknown

Issue: Unknown

Page Range: 617-628

Description:

The second part of the paper deals with the Jung-Kerényi -Pauli dominantly unconscious 'cooperation' on the basis of the synchronistic background in the years 1954-57.The main patterns of the 'especial communication' is based also on the structure and meaning of the 'Eleusinian mysteries' together with the Perseus mythologem and its possible relation to the 'Leviathan myth' exploring as an extended 'dynamic hermeneutical system'.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2014.7020417

Joint experiments on the Tokamaks CASTOR and Ta10

E. Sukhov G. M. Vorobjev A. Singh V. Weinzettl B. Kuteev G. Mank G. Kirnev R. Gonzales A. Malaquias I. Ďuran B. Tál N. Kirneva A. Melnikov P. Khorshid M. Hron P. Peleman J. Sentkerestiova A. Fonseca J. Zajac M. Berta A. Talebitaher M. Sokolov V. Vershkov C. R.Gutierrez Tapia A. W. Kraemeraflecken I. El Chama Neto E. Del Bosco J. G. Ferreira J. Brotankova J. Stockel M. Gryaznevich G. Van Oost E. Dufkova R. Dejarnac V. Soldatov V. Budaev Y. Kuznetsov L. Ruchko H. Hegazy A. Ovsyannikov H. Hegazy L. I. Krupnik S. Zoletnik

Publication Name: Aip Conference Proceedings

Publication Date: 2008-12-01

Volume: 996

Issue: Unknown

Page Range: 24-33

Description:

Small tokamaks may significantly contribute to the better understanding of phenomena in a wide range of fields such as plasma confiement and energy transport; plasma stability in different magnetic configurations; plasma turbulence and its impact on local and global plasma parameters; processes at the plasma edge and plasmaawall interaction; scenarios of additional heating and nonainductive current drive; new methods of plasma profile and parameter control; development of novel plasma diagnostics; benchmarking of new numerical codes and so on. Furthermore, due to the compactness, flexibility, low operation costs and high skill of their personnel small tokamaks are very convenient to develop and test new materials and technologies. Small tokamaks are suitable and important for broad international cooperation, providing the necessary environment and manpower to conduct dedicated joint research programmes. In addition, the experimental work on small tokamaks is very appropriate for the education of students, scientific activities of postagraduate students and for the training of personnel for large tokamaks. The first Joint (Host Laboratory) Experiment (JE1) has been carried out in 2005 on the CASTOR tokamak at the IPP Prague, Czech Republic. It was jointly organized by the IPPaASCR and KFKI HAC, Budapest, involved 20 scientists from 7 countries and was supported through the IAEA and the ICTP, Trieste. The objective of JE1 was to perform studies of plasma edge turbulence and plasma confinement. Following the success of JE1, JE2 has been performed on Ta10 at RRC "Kurchatov Institute" in Moscow; 30 scientists from 13 countries participated in this experiment. This experiment aimed to continue JE1 turbulence studies, now extending them to the plasma core. Results of JE1 and JE2 will be overviewed and compared. © 2008 American Institute of Physics.

Open Access: Yes

DOI: 10.1063/1.2917019

Modeling the Stiffening Behavior of Sand Subjected to Dynamic Loading

Majd Ahmad Richard Ray

Publication Name: Geosciences Switzerland

Publication Date: 2024-01-01

Volume: 14

Issue: 1

Page Range: Unknown

Description:

In geotechnical engineering, dynamic soil models are used to predict soil behavior under different loading conditions. This is crucial for many dynamic geotechnical problems related to earthquakes, train loading and machine foundation design. Researchers agree that under dry or drained conditions, cohesionless soils increase in stiffness with each loading cycle. Soil models that simulate the dynamic behaviors of soils are often coupled with the Masing criteria. Such models neglect the impact of stiffening during cyclic loading, leading to an underestimation in the shear modulus (G). This study investigates the stiffening behavior by conducting laboratory tests on three types of Danube sands using the Resonant Column-Torsional Simple Shear device (RC-TOSS). The increase in the dynamic shear modulus with an increasing number of cycles is substantial, especially for samples with low density. Sometimes, the dynamic shear modulus doubles when loaded at high stress levels for more than 50 cycles. A new model is introduced to simulate the stiffening behavior of dry sand when subjected to cyclic torsional loading. Modifications are proposed for the Ramberg–Osgood and Hardin–Drnevich models and for the Masing criteria to overcome the limitations that accompany these models due to the influence of stiffening caused by repetitive loading being ignored. This model can be implemented in finite element and finite difference software to solve dynamic geotechnical problems.

Open Access: Yes

DOI: 10.3390/geosciences14010026

Biology, phylogenetic and evolutionary relations of Tradescantia mild mosaic virus isolates from Hungary

László Palkovics Réka Sáray János Ágoston Dóra Pinczés Asztéria Almási Katalin Salánki

Publication Name: Journal of Plant Pathology

Publication Date: 2024-08-01

Volume: 106

Issue: 3

Page Range: 1369-1374

Description:

In Western Transdanubia in 2018 and in Central-Hungary in 2022 spiderwort plants showed flower breaking symptoms and mild mosaic on the foliage, which indicated a potential virus infection. One gram of symptomatic leaf sample was collected at both locations. Potyvirus-specific ELISA tests demonstrated potyvirus infection. To identify the virus species, potyvirus-specific RT-PCR was carried out on the samples. In both samples specific PCR products were detected and cloned into pGEM®-T Easy vector. The nucleotide sequences of the inserts were determined by Sanger sequencing. BLASTn searches on the complete coat protein region of both isolates demonstrated more than 99.87% identity with Tradescantia mild mosaic virus (TraMMV; accession number OL584375). Koch postulates were fulfilled by sap inoculating seed grown spiderwort plants. Phylogenetic analyses of the TraMMV coat protein sequences revealed two distinct evolutionary lineages: a tropical subgroup with at least 97.84% identity within the group and temperate subgroup with at least 98.97% identity within the group. One major difference between the subgroups was in the triplet responsible for vector transmission. The isolates belonging to the tropical subgroup had DAG triplets, while the temperate subgroup had NAG triplets. The difference in the triplets could be caused by natural diversification, directional selection or disruptive selection. License: CC BY-NC-ND

Open Access: Yes

DOI: 10.1007/s42161-024-01661-9

Knowledge management strategy as a chance of small and medium-sized enterprises

Andrea Bencsik Timea Juhasz

Publication Name: Organizational Culture and Behavior Concepts Methodologies Tools and Applications

Publication Date: 2017-02-10

Volume: 2-4

Issue: Unknown

Page Range: 577-607

Description:

This chapter shows how SMEs can compete with multinational companies. This chapter was written on the basis of practical research results. In this research, Hungarian and Slovakian SMEs were investigated from the view of a knowledge-based economy. The question was how they can face future challenges. The researchers wanted to know how SMEs handle their chance which is hidden in their way of thinking about a knowledge strategy. As a result, these companies seem to be afraid, uncertain, and think their success is only luck or a current incident. They live a "fly by night" existence, and they do not feel the importance of development, of studying, of knowledge, they run after work and money. These enterprises feel that they have to survive, and to this, they need money and financial capital. Therefore, knowledge and studying fall behind.

Open Access: Yes

DOI: 10.4018/978-1-5225-1913-3.ch028

Comparison of the A*-A and T φ-phi; Formulations for the 2-D analysis of solid-rotor induction machines

Miklós Kuczmann D. Marcsa

Publication Name: IEEE Transactions on Magnetics

Publication Date: 2009-09-01

Volume: 45

Issue: 9

Page Range: 3329-3333

Description:

We present two eddy-current field potential formulations to solve rotating electrical machine problems by applying the finite-element method (FEM) using the motional ${\mbi A}^{*}{-}{\mbi A}$-potential formulation and the motional ${\mbi T}, {\bf \Phi}{-}{\bf \Phi}$-potential formulation. We use the single-phase and three-phase solid-rotor induction motors of Problem No. 30a of TEAM Workshops to compare the potential formulations. We have solved both problems in the time domain and the frequency domain. © 2009 IEEE.

Open Access: Yes

DOI: 10.1109/TMAG.2009.2022328