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Found 6515 publications

Stochastic Breather and Soliton Dynamics of a Third-Order Complex mKdV (Higher-Order NLS-Type) Equation

Hadi Rezazadeh Younis A. Sabawi Hijaz Ahmad Taha Radwan Li Ming

Publication Name: Journal of Nonlinear Mathematical Physics

Publication Date: 2026-12-01

Volume: 33

Issue: 1

Page Range: Unknown

Description:

This study presents a comprehensive investigation of optical solitary waves governed by a third-order complex modified Korteweg-de Vries (higher-order nonlinear Schrödinger-type, mKdV-NLS) equation incorporating stochastic effects. Initially, the methodology outlines the general procedure of this approach. Subsequently, by applying the traveling waves transformation to the given equation, it is reformulated into nonlinear ordinary differential equations (NLODEs). These NLODEs are then decomposed into their imaginary and real components. Furthermore, the proposed methodology is implemented to derive new solutions for optical solitary waves within the mKdV-NLS type model, encompassing stochastic breather-like waves, singular solitons, periodic waves, and various wave interactions. Additionally, numerical visualizations of the exact analytical solitary waves are provided, facilitating an examination of the stochastic term’s influence on wave dynamics. This study advances the understanding of optical wave behavior and clarifies the effects of stochastic contributions, offering valuable insights for both theoretical studies and practical applications in optics and related fields.

Open Access: Yes

DOI: 10.1007/s44198-025-00367-5

Same Goal, Different Paths – Sustainability in Hungarian Cultural Heritage Protection

Viktória Verebélyi

Publication Name: Rechtskultur

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: 659-670

Description:

This study explores the requirement of sustainability in cultural heritage protection from the perspective of constitutionality. Following an indispensable overview of certain concepts relating to its subject it discusses the constitutional framework of legislation on cultural heritage protection. Through an analysis of the applicable legal regulations, it examines the way the Hungarian State can enforce the requirement of sustainability in the specific field of cultural heritage protection. This is, indeed a topical subject, particularly in view of the Act on the Sustainable Development of Certain Elements of Cultural Heritage (hereinafter: “Castles Act”) which was adopted by the Hungarian National Assembly on 12 December 2023, but was not promulgated pursuant to Decision 5/2024. (II. 6.) of Constitutional Court. Ensuring sustainability is, according to the explanatory memorandum attached to the Castles Act is one of the key aspect of the regulation, just like in the case of the act regulating the returning of cultural objects of disputed ownership, kept in public collections.

Open Access: Yes

DOI: 10.36213/01-25

Energy management and hybrid energy storage in metro railcar

István Szénásy

Publication Name: 2012 International Conference on Renewable Energy Research and Applications Icrera 2012

Publication Date: 2012-12-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

This paper focuses on the use of modeling and simulation one of renewable energy. © 2012 IEEE.

Open Access: Yes

DOI: 10.1109/ICRERA.2012.6477423

Thermal ablation for early-stage breast cancer: cryoablation, microwave ablation, radiofrequency ablation, high-intensity focused ultrasound ablation, and laser ablation — a systematic review

Judit Erdos Gregor Goetz András Drozgyik Doris Giess Julia Kern

Publication Name: Breast

Publication Date: 2026-08-01

Volume: 88

Issue: Unknown

Page Range: Unknown

Description:

Background: Thermal ablation techniques have been proposed as minimally invasive alternatives to surgery for early-stage breast cancer (BC), with the potential to reduce treatment burden while preserving oncological outcomes. The aim of this review was to evaluate the available evidence on the effectiveness and safety of thermal ablation techniques in patients with early-stage BC. Methods: We conducted a systematic review and narrative synthesis in accordance with PRISMA guidelines. MEDLINE, Embase, the Cochrane Library, and the INAHTA database were searched for studies published between 2014 January and 2026 May. Eligible studies included randomised controlled trials, non-randomised comparative studies, and prospective single-arm studies enrolling adult patients with early-stage BC treated with cryoablation (CYA), microwave ablation (MWA), radiofrequency ablation (RFA), high-intensity focused ultrasound ablation (HIFU), or laser ablation (LA), with or without standard care. Risk of bias was assessed using RoB 2.0 and ROBINS-I, and certainty of evidence was evaluated using GRADE. Results: Twenty-two trials (in 24 publications) were included: twelve on CYA, five on MWA, three on RFA, two on HIFU, and one on LA, with one trial evaluating both CYA and MWA. Comparative evidence was available for CYA, MWA, and RFA, while HIFU and LA were evaluated exclusively in single-arm studies. Across interventions, recurrence rates were generally low, overall survival was high, reported adverse events were predominantly mild to moderate. Most studies were small, had short follow-up, and frequently included post-ablation surgical resection, limiting causal attribution. Certainty of evidence ranged from very low to moderate, depending on intervention and outcome. Conclusion: Thermal ablation techniques demonstrate favourable short-term safety profiles and promising oncological outcomes in selected patients with early-stage BC. Current evidence is limited by low certainty, heterogeneous study methodologies, and limited long-term comparative data. High-quality comparative studies with standardised assessment methods and long-term follow-up are required to elucidate the comparative clinical evidence of thermal ablation techniques and inform their role in routine clinical practice.

Open Access: Yes

DOI: 10.1016/j.breast.2026.104843

Decisions with general scope in the light of special sectoral regulations in the Hungarian administrative system

János Kálmán

Publication Name: Hungarian Journal of Legal Studies

Publication Date: 2024-03-21

Volume: 64

Issue: 2

Page Range: 220-235

Description:

In the 21st century, the two administrative instruments that have the greatest impact on the legal situation of members of society, administrative enforcement and administrative legislation, have been and are being confronted with a number of social challenges (global economic crisis, refugee crisis, epidemics and pandemics). The challenges of the 21st century require public intervention to provide a rapid, accurate and effective response to the problems that arise, while ensuring legality and the protection of the rights of the citizens. The first responses to social problems are provided by sectoral regulations, which may conflict with general rules of administrative procedure. The study analyses administrative decisions of general scope in the light of special sectoral regulation and review the points of conflict with general rules of administrative procedure. The study concludes with a proposal.

Open Access: Yes

DOI: 10.1556/2052.2023.00439

Characterization of Model Uncertainty Features Relevant to Model Predictive Control of Lateral Vehicle Dynamics

Gábor Rödönyi Dániel Pup Ádám Kisari Zsombor Vigh Alexandros Soumelidis József Bokor

Publication Name: 2020 23rd IEEE International Symposium on Measurement and Control in Robotics Ismcr 2020

Publication Date: 2020-10-15

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

The information about a system's dynamics represented by measurement data sets are often confined to regions of restricted operations where the system is not sufficiently excited for model identification purposes. Experiments performed in closed-loop with safety constraints allow only for reduced order modeling. In the paper, a set of low order models are identified from real experimental data of the lateral dynamics of an electric passenger car. Low order models are advantageous for on-line computation in model-based control, though uncertainty due to neglected dynamics may deteriorate control performance and constraint satisfaction. The effect of uncertainty is analyzed by controller cross-validation where a controller designed based on one model is evaluated on other models playing the role of the true system. This method allows us to qualify not only model-controller pairs, but to determine the properties of input data and model uncertainty, which lead to more useful data sets, more robust and better performing controllers than the others.

Open Access: Yes

DOI: 10.1109/ISMCR51255.2020.9263745

Interprofessional education in Hungary: developments and challenges.

Krisztina Kóbor

Publication Name: Journal of Interprofessional Care

Publication Date: 2009-12-01

Volume: 23

Issue: 5

Page Range: 523-525

Description:

No description provided

Open Access: Yes

DOI: 10.1080/13561820902921951

Transition in the mining industry with green energy: Economic dynamics in mining demand

Laszlo Vasa Ashutosh Kolte Omkar Hirlekar

Publication Name: Resources Policy

Publication Date: 2025-01-01

Volume: 100

Issue: Unknown

Page Range: Unknown

Description:

This paper examines transformation of the mining industry in the Global South due to the rising demand for electric vehicles (EVs), which is a part of disruptive green technologies. South Africa & Democratic Republic of the Congo (DRC) are two important suppliers of critical minerals like cobalt, nickel, lithium, copper. This research tries to explore economic dynamics of mineral extraction and green transport. Using quantitative regression analysis, this paper tries to find the relationship between demand for EVs and its economic impact on mining industry's overall sales. The analysis has shown impact of critical minerals & mining sale and how disruptive technology like Evs are affecting mineral-rich countries sustainable mining. This paper is trying to shows some light on economic importance of critical minerals in transition of mining industry due to green vehicles or Evs. The association between the emerging green technology and the mining sector. The study focuses on nations in the Global South that have substantial control over the supply chain of essential minerals used in electric car batteries. The main objective of this study is to conduct an academic investigation of the many implications of green transport on the mining sector in the Global South.

Open Access: Yes

DOI: 10.1016/j.resourpol.2024.105409

Servitization of public service processes with a simulation modelling approach

Boglárka Eisingerné Balassa László Buics

Publication Name: Engineering Management in Production and Services

Publication Date: 2020-09-01

Volume: 12

Issue: 3

Page Range: 116-131

Description:

This article aims to examine how the theory of co-production can be connected with servitization and digitalisation and used together for the public service development with the help of discrete-event simulation modelling to highlight time-related deficiencies of a complex public service process, which is most commonly used by patchwork families. Data was taken from the Guardianship Office in Gyor (Hungary), based on which in-depth interviews were conducted. Based on the legal background and the interviews, the authors of the article created the process model of the contacting procedure. Based on the model, discrete-event simulation was used to identify the process elements for potential improvement through servitization. Discrete-event simulation showed the insufficiency of national regulation regarding the whole process and weaknesses of the contacting procedures in terms of quality and success. Basic reasons were found for the dissatisfaction expressed by participants of the procedures (administrators and customers). The increasing customer demand for high quality and efficient public services and failures in the New Public Management (NPM) in Eastern European countries require other approaches to advance. The paper connects the theory of co-production and servitization in a public service context and demonstrates how a complex public service can be examined with this approach to find possible improvements. The government must change the process regulation considering the number of the cases, the workload of administrators and family types (divorced or patchwork). The emphasis should be placed on the training and experience of administrators.

Open Access: Yes

DOI: 10.2478/emj-2020-0023