Péter B. Nagy

Theoretical Model for SPC

Péter B. Nagy, Bernd Köhler, Laurence J. Jacobs

This manuscript proposes a theoretical model of memoryless polynomial nonlinearity for SPC-based ultrasonic NDE. The results show that only linear effects produce spectral peaks at low nonlinearity levels, and higher harmonics and mixed modes also contribute to the number of observable spectral …

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Theoretical Model for SPC

Péter B. Nagy, Bernd Köhler, Laurence J. Jacobs

This manuscript proposes a theoretical model of memoryless polynomial nonlinearity for SPC-based ultrasonic NDE. The results show that only linear effects produce spectral peaks at low nonlinearity levels, and higher harmonics and mixed modes also contribute to the number of observable spectral …

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Experimental evaluation of non-collinear shear wave mixing to characterize interface nonlinearity

Hendrik M. Carius, Péter B. Nagy, Junzhen Wang, Jin-Yeon Kim et autres

In the search for techniques to distinguish between merely good and excellent bond conditions, linear reflection based methods are simple to apply, but their sensitivity decreases rapidly with increasing bond quality. As an alternative, this research reports on the experimental validation of …

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Designing the AI Maze

Péter B. Nagy

For this chapter, I turn to the archeologist Ian Hodder’s entanglement theory to describe how tech companies design and deploy their Artificial Intelligence (AI) systems. I argue that the goal of the tech industry is to entangle—and ultimately entrap—users in their technological …

Numerical evaluation of the sideband peak count method for nonlinear ultrasonic damage detection

Péter B. Nagy, Laurence J. Jacobs, Bernd Köhler, Frank Schubert

It is well established in the scientific literature that a material's nonlinear response is much more sensitive to increasing dislocation density, microcrack nucleation, and other types of early material degradation than its linear response. The nonlinear elastic behavior of materials can be …

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Other Nondestructive Methods for Residual Stress Measurement

Péter B. Nagy

Abstract This article focuses on electric residual stress (RS) characterization methods based on electrical conductivity (EC), Hall coefficient (HC), and thermoelectric power (TEP) measurements in electrically conductive materials. It also describes electric RS measurement techniques and applications.

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Analytical and numerical modeling of non-collinear wave mixing due to material and interface nonlinearity

Junzhen Wang, Péter B. Nagy, Hendrik M. Carius, Jin-Yeon Kim et autres

Previous research established a nonlinear stiffness model for imperfect interfaces and analyzed non-collinear wave mixing at such interfaces for two incident shear waves. This study extends those results to encompass five possible non-collinear wave mixing modalities involving longitudinal and shear vertical waves, …

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Half a century of cancer transition in Hungary: A visualization and assessment of mortality dynamics in the Lexis diagram, 1970–2020

András Wéber, Freddie Bray, Mátyás Árvai, Lászlóné Hilbert et autres

OBJECTIVES: Hungary is among the countries with the highest cancer mortality burden in Europe, consequently there is a crucial need to monitor changes in death rates in the population using appropriate surveillance tools. The Lexis diagram provides a means to depict age, …

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Microgliosis, neuronal death, minor behavioral abnormalities and reduced endurance performance in alpha-ketoglutarate dehydrogenase complex deficient mice

Márton Kokas, András Budai, Andrea Kádár, Soroosh Mozaffaritabar et autres

The alpha-ketoglutarate dehydrogenase complex (KGDHc), also known as the 2-oxoglutarate dehydrogenase complex, plays a crucial role in oxidative metabolism. It catalyzes a key step in the tricarboxylic acid (TCA) cycle, producing NADH (primarily for oxidative phosphorylation) and succinyl-CoA (for substrate-level phosphorylation, among …

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The impact of life tables on age standardized net survival of real-life example databases

András Wéber, Zoltán Vokó, Zoltán Kiss, István Szatmári et autres

BACKGROUND: Population-based, age-standardized net survival estimates provide valuable insights for comparing the effectiveness of cancer treatment and the prospects of cure in an international context. Although numerous studies have previously assessed survival, the choice of life tables may crucially impact the feasibility …

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Improvements in cancer survival in Hungary: a nationwide epidemiology study between 2011–2019 based on a health insurance fund database

Zoltán Kiss, Anikó Maráz, György Rokszin, Zsolt Horváth et autres

Background: The assessment of cancer survival is crucial for evaluating advancements in cancer management. As part of the nationwide HUN-CANCER EPI study, we examined the net survival of the Hungarian cancer patient population in 2011-2019. Methods: Using extracted data from the Hungarian …

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Revising cancer incidence in a Central European country: a Hungarian nationwide study between 2011–2019 based on a health insurance fund database

Zoltán Kiss, Tamás Szabó, Csaba Polgár, Zsolt Horváth et autres

Background: The nationwide HUN-CANCER EPI study examined cancer incidence and mortality rates in Hungary from 2011 to 2019. Methods: Using data from the National Health Insurance Fund (NHIF) and Hungarian Central Statistical Office (HCSO), our retrospective study analyzed newly diagnosed malignancies between …

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