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Metamodel of the plane strain compression test as a replacement of fe model in the inverse analysis

Łukasz Sztangret, Mateusz Sztangret, Jan Kusiak, Maciej Pietrzyk • Computer Methods in Materials Science (2014)

The paper presents the application of plane strain compression (PSC) test to the identification of material model parameters. Moreover, an attempt to substitute the finite element (FE) model with the metamodel in the inverse analysis was ma...

DOAJ Open Access (DOAJ) DOI: 10.7494/cmms.2014.4.0493

Composite-Decorative Tiles with Granite

Octavian POTECAŞU, Florentina POTECAŞU, Elena DRUGESCU • The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science (2006)

The paper presents the results of the authors’ scientific research on a composite material with polymeric matrix, hardened with rock particles. It was studied the influence of the quantity of the hardening phase on the compression resistanc...

DOAJ Open Access (DOAJ)

The significance of the Second Hague Peace conference in the development of the institution of peaceful settlement of international disputes

B.V. Nikolaev, N.A. Pavlova • Известия высших учебных заведений. Поволжский регион: Общественные науки (2025)

Background. Domestic diplomacy and international legal science played a leading role in the formation of the institution of peaceful resolution of international disputes. It was Russia that initiated two Hague Peace Conferences in 1899 and ...

DOAJ Open Access (DOAJ) DOI: 10.21685/2072-3016-2025-2-7

Achieving high strength in 430 stainless steel by laser powder bed fusion: microstructure-property relationships and strengthening strategies

Junchen Li, Qiushuang Wang, Swee Leong Sing, Congwei Wang et al. • Virtual and Physical Prototyping (2026)

Conventional manufacturing of 430 ferritic stainless steel faces significant challenges, including severe work hardening, rapid tool wear, and limited strengthening via heat treatment. To overcome these limitations, this study employs laser...

DOAJ Open Access (DOAJ) DOI: 10.1080/17452759.2026.2631285

Evolution of the Shadow Effect with Film Thickness and Substrate Conductivity on a Hemispherical Workpiece during Magnetron Sputtering

Huaiyuan Liu, Donglin Ma, Yantao Li, Lina You et al. • Metals (2023)

When depositing films on a complex workpiece surface by magnetron sputtering, the shadow effect occurs and causes the columnar structure to tilt toward the substrate owing to the oblique incident angle of the plasma flux, affecting the micr...

DOAJ Open Access (DOAJ) DOI: 10.3390/met13010165

Manufacturing of Hierarchical (Nano-)Composite Structures: Numerical and Experimental Perspectives

Hatim Alotaibi, Constantinos Soutis, Masoud Jabbari • Applied Sciences (2026)

Thermoset polymer nanocomposites have considerable potential to improve the functionality and optimise the performance of composite structures. Such a nanocomposite generally consists of a modified polymer matrix (continuous phase) containi...

DOAJ Open Access (DOAJ) DOI: 10.3390/app162010379

Bio-Template Synthesis of V<sub>2</sub>O<sub>3</sub>@Carbonized Dictyophora Composites for Advanced Aqueous Zinc-Ion Batteries

Wei Zhou, Guilin Zeng, Haotian Jin, Shaohua Jiang et al. • Molecules (2023)

In terms of new-generation energy-storing devices, aqueous zinc-ion batteries (AZIBs) are becoming the prime candidates because of their inexpensive nature, inherent safety, environmental benignity and abundant resources. Nevertheless, due ...

DOAJ Open Access (DOAJ) DOI: 10.3390/molecules28052147

Effect of the Temperature and Oxidation Time on Some Physicochemical Characteristics of the Rice Bran Oil

Romică CREȚU, Liviu Cătălin ȘOLEA • The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science (2022)

Due to their excellent characteristics, vegetable oils are successfully used in various formulations of organic lubricants. In this context, the advanced biodegradability and excellent lubricity performance of rice oil leads to its being co...

DOAJ Open Access (DOAJ) DOI: 10.35219/mms.2022.3.01

The relationship between perceived stress and depression in colorectal cancer patients: the mediating role of illness perception and the moderating role of self-efficacy

Fuzhuo Wang, Jiashuang Xu, Hong Sun, Xiuli Wang et al. • Frontiers in Oncology (2026)

BackgroundNumerous studies have demonstrated a close association between perceived stress and depression in colorectal cancer patients; however, the underlying mechanisms remain incompletely understood. This study aims to investigate the im...

DOAJ Open Access (DOAJ) DOI: 10.3389/fonc.2026.1746202

Predicting Microbial Protein Synthesis in Cattle: Evaluation of Extant Equations and Steps Needed to Improve Accuracy and Precision of Future Equations

Michael L. Galyean, Luis O. Tedeschi • Animals (2024)

Predictions of microbial crude protein (MCP) synthesis for beef cattle generally rely on empirical regression equations, with intakes of energy and protein as key variables. Using a database from published literature, we developed new equat...

DOAJ Open Access (DOAJ) DOI: 10.3390/ani14192903

Hardy-Leindler-Type Inequalities via Conformable Delta Fractional Calculus

H. M. Rezk, Wedad Albalawi, H. A. Abd El-Hamid, Ahmed I. Saied et al. • Journal of Function Spaces (2022)

In this article, some fractional Hardy-Leindler-type inequalities will be illustrated by utilizing the chain law, Hölder’s inequality, and integration by parts on fractional time scales. As a result of this, some classical integral inequali...

DOAJ Open Access (DOAJ) DOI: 10.1155/2022/2399182

Is There a Retrograde Accretion Disk around 4U 1626–67? Tracking Torque Reversals with a State-space Model

Joseph O’Leary, Andrew Melatos, Tom Kimpson, Dimitris M. Christodoulou et al. • The Astrophysical Journal (2026)

X-ray timing studies of the persistent, Galactic, accretion-powered pulsar 4U 1626−67 reveal torque reversals, during which the pulse frequency ν ( t ) alternates between multiyear episodes of secular acceleration and deceleration, separate...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-4357/ae2610