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Found 6423 publications

The finite element modeling of rigid inclusion-supported embankment

Edina Koch Rashad Alsirawan

Publication Name: Pollack Periodica

Publication Date: 2022-01-01

Volume: 17

Issue: 2

Page Range: 86-91

Description:

The design of supported embankments on soft soil is a common challenge for civil engineers. This article aims to evaluate the performance of three advanced constitutive models for predicting the behavior of soft soils, i.e., hardening soil, hardening soil model with small-strain stiffness, and soft soil creep. A case study of a rigid inclusion-supported embankment is used for this purpose. Plaxis 3D program was adopted to predict the settlements in subsoil layers and vertical stresses in the load transfer platform. Comparison between field measurements and result of Plaxis 3D modeling was performed. Results demonstrate that soft soil creep model yields predictions in a good agreement with the field measurements, while hardening soil small strain model gives slightly worst predictions.

Open Access: Yes

DOI: 10.1556/606.2021.00504

Cultural Conceptualisations of TREE: A Cross-Cultural Analysis of Hungarian and Russian Folksongs

Judit Baranyiné Kóczy Júlia Hamsovszki

Publication Name: Second Language Learning and Teaching

Publication Date: 2022-01-01

Volume: Unknown

Issue: Unknown

Page Range: 21-49

Description:

One of the key issues of recent linguistic trends is to understand the interaction between language and culture, which can be well observed through the identification of cultural conceptualizations (Sharifian, 2011, 2017). This study explores and compares the basic cultural conceptualizations of tree, a concept which holds a universal symbolic status in human cognition, in Russian and Hungarian folk songs (e.g., Baranyiné Kóczy, 2018b), relying on approximately 800 + 600 texts presented in two Hungarian and Russian corpora of folksongs (Kireevsky, 1986). The study addresses the following questions: How is tree conceptualized in general in folk songs by the Hungarian vs. Russian folk cultural communities? Are specific conceptualizations attached to different tree-types in the two corpora? What similarities and differences of the underlying metaphors can be distinguished in these two systems of cultural conceptualizations? What specific conceptualizations are attached to various tree-species in these corpora? The study utilizes the methodological framework of Cultural Linguistics in that it identifies conceptual metaphors and metonymies in the texts and relates them to underlying cultural models. The research shows that, (a) Russian folk songs tend to employ various tree-types with distinct conceptualizations, whereas tree-species are less dominantly represented in the Hungarian folk songs; (b) the most frequent type of tree is дyб “oak” in Russian whereas rózsafa “rose-tree” in Hungarian; (c) despite some similar generic ideas behind cultural conceptualizations, their representations and the image schemas related to them can be quite different; (d) there are conceptualizations which are only present in either corpus. Overall, it is argued that the figurative uses of trees and parts of trees rely on cultural conceptualizations and are deeply embedded in the cognition of folk cultural communities.

Open Access: Yes

DOI: 10.1007/978-3-030-96099-5_2

The historical ecological footprint: From over-population to over-consumption

Szigeti Cecília Gergely Tóth

Publication Name: Ecological Indicators

Publication Date: 2016-07-25

Volume: 60

Issue: Unknown

Page Range: 283-291

Description:

Abstract The ecological risk from over-population has been recognized since Malthus (1798). GDP growth per capita in agriculture disproved his pessimism but, since the Club of Rome and its case on Limits to Growth more recently there has been concern that there is a parallel risk from such growth in terms of ecological footprints (EF). Authors have developed a GDP/EF correlation function and calculated the ecological footprint (EF) from 10,000 B.C. till 1960, using historical statistics, with the method of backcasting (Brandes and Brooks, 2005).1 In all major indicators growth patterns have been dominating, not only since the industrial revolution, but in the known history of mankind. From data since 1961, we calculate the correlation between GDP and the ecological footprint and have been able to determine long time data series of population, GDP, biocapacity and EF. Our findings are first: the main driver of growth and environmental degradation is not population per se, but consumption patterns and levels multiplied by the number of consumers, especially in developed economies, as the I = PAT equation recognized (Ehrlich and Holdren, 1971). In fact, as we approach to today, population, which used to be the key driver to growth and environmental degradation, becomes the least important driver, especially in the last two decades. Second: change is not incremental or linear as assumed in much mainstream economics: in line with Schumpeter's bunching and swarming and it jumps and leaps asymmetrically, as in our finding of such a leap (the 7th) between the 1930s and 1970s. Third: the dominant paradigm legitimizing growth (from the late 18th century) while already challenged by many since the Club of Rome and other reports should be revisited in terms of the concept of 'fullness' in the sense that while the earth in 1776 was roughly 10 per cent full, by 2008 this figure was over 150 per cent.

Open Access: Yes

DOI: 10.1016/j.ecolind.2015.06.040

Courier, Express, Parcel market with a complex system interpretation-The Hungarian case

Edit Süle Csilla Bartucz

Publication Name: 2024 IEEE 15th International Colloquium of Logistics and Supply Chain Management Logistiqua 2024

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

The parcel delivery market functions as a complex system, according to the authors of this article. By comprehending and outlining the unique characteristics of the complex system, the authors aim to substantiate their assertion. The Covid pandemic in Hungary's Courier, Express, and Parcel market in 2020 caused a previously unprecedented increase in parcel delivery demands similarly to other countries. The epidemic-related rise in e-commerce additionally resulted significant changes to the approach by which the parcel delivery industry operated. Unexpected collaboration amongst service providers started to emerge on the parcel market in 2021. These alterations are of a kind that suggests the behavioural characteristics of a complex system. Considering that the leading service providers' autonomous operations constitute the primary characteristic of the Hungarian parcel delivery market, an analysis from a scientific perspective of the events that transpired in the Hungarian parcel delivery market is imperative to understand the reasons for this shift. Two research questions have been formulated by the authors, one of which investigates whether the parcel delivery market is considered as a system (complex system), it is conceivable for collaboration to emerge spontaneously if this is the most effective form for the system. The other research question concerns whether cooperation can be established in a market without external interference. To provide an explanation for the developments that transpired between 2020 and 2022, the authors analyse the Hungarian parcel delivery market as a complex system. In complex systems, transformation and self-organization occur naturally when the system decides that a particular shape is best for it in its current environment. During the time under review, the equilibrium of the parcel delivery market in Hungary was disrupted by the unanticipated rise in e-commerce, and the increased demands of customers nearly brought the service providers to a state of chaos. Consequently, the behaviour of service providers started to shift from their previous standards. The article's uniqueness is in its classification of the parcel delivery market as a complex system, which can be used to anticipate the current and expected behaviour of the stakeholders.

Open Access: Yes

DOI: 10.1109/LOGISTIQUA61063.2024.10571534

Dilemmas of Child Protection in Hungary During the Austro-Hungarian Monarchy: Addressing the Issue of Morally Abandoned Children

Enikő Kovács-Szépvölgyi

Publication Name: Journal on European History of Law

Publication Date: 2025-01-01

Volume: 16

Issue: 2

Page Range: 94-100

Description:

Following the Austro-Hungarian Compromise (1867), Hungary underwent significant legal modernization, which extended to the regulation of endangered children. Within the evolving framework of state-led child protection, administrative and judicial branches constituted the core mechanismsaimed at safeguarding vulnerable minors. In the case of morally abandoned, delinquent, or at-risk children – those operating on the fringes of petty criminality – the state sought appropriate interventions, alternating between administrative and judicial approaches. The placement of materially abandoned children in state-run children’s shelters became possible under Decree No. 60.000 issued by the Ministry of the Interior in1907, which, according to archival sources, was implemented in practice. The Juvenile Court Act (Act VII of 1913) allowed for the temporaryor permanent removal of children from their original environments through specific measures: temporary decisions for non-punishable children and definitive rulings for juveniles. As a result, morally neglected children came to occupy the intersection of administrative and judicial state-led child protection systems.

Open Access: Yes

DOI: DOI not available

Connected cognitive entity management: New challenges for executive decision-making

Patrick Waldbuesser Tibor Dőry

Publication Name: 6th IEEE Conference on Cognitive Infocommunications Coginfocom 2015 Proceedings

Publication Date: 2016-01-25

Volume: Unknown

Issue: Unknown

Page Range: 235-240

Description:

Business executives face several challenges in the era of smart factories and Industry 4.0. They would like to benefit from the investments made in widespread digitization and information procession across business fields. However, running the business became very complex full of human-machine interactions that require new management tools and approaches in order to manage more effectively employees belonging to different generations. Getting smart in every field of life and business stems from the multiple connections of smart, cognitive devices. The paper provides an overview of the main management challenges of Industry 4.0 and outlines the concept of Connected Cognitive Entity Management that could effectively support executive decisions making processes.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2015.7390597

A Novel Feedback Linearisation Control of Flyback Converter

Miklós Kuczmann Miklos CSIZMADIA

Publication Name: Power Electronics and Drives

Publication Date: 2023-01-01

Volume: 8

Issue: 1

Page Range: 74-83

Description:

This paper presents a novel approach for feedback linearisation in a continuous conduction mode (CCM) of the flyback converter. Due to the unstable zero dynamics, a flyback converter has highly non-linear behaviour. Flyback converters mostly use the indirect (current) control mechanism. In contrast, this paper shows a direct control of the output voltage of a flyback converter with feedback linearisation (a non-linear control method). In the designed controller, an error integrator is applied to improve the dynamic and steady-state behaviour of the controller. To design the feedback linearisation method, the state-space averaged model is determined. The converter and the proposed control are tested in a MatLab/Simulink environment, and the results are compared with other optimal controller methods. The results provide feedback about the efficiency and practical implementation of the proposed method.

Open Access: Yes

DOI: 10.2478/pead-2023-0006

Editorial: Cognitive infocommunications

Anna Esposito Carl Vogel Gennaro Cordasco Peter Baranyi

Publication Name: Frontiers in Computer Science

Publication Date: 2023-01-01

Volume: 5

Issue: Unknown

Page Range: Unknown

Description:

No description provided

Open Access: Yes

DOI: 10.3389/fcomp.2023.1129898

Novel design of cognitive system strategies

Claudiu Radu Pozna Radu Emil Precup

Publication Name: Lindi 2012 4th IEEE International Symposium on Logistics and Industrial Informatics Proceedings

Publication Date: 2012-11-06

Volume: Unknown

Issue: Unknown

Page Range: 205-214

Description:

This paper presents results related to a new design approach dedicated to cognitive system strategies. The scenario concerning a robot integrated in a cognitive system is described. The paper focuses on the development of a pattern of human knowledge and on a new data structure which are able to organize and manipulate the involved information. The definitions of signatures and of signature classes are given as one of the first steps in an alternative modeling approach to the observation process. The paper ends with an example that deals with using the signatures in the observation. © 2012 IEEE.

Open Access: Yes

DOI: 10.1109/LINDI.2012.6319489