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Showing 20 of 6,095 academic articles

Advancements in Ni‐based Catalysts for Direct Urea Fuel Cells: A Comprehensive Review

Yulia M. T. A. Putri, Muhammad I. Syauqi, Isnaini Rahmawati, Aliyah Aliyah et al. • ChemElectroChem (2024)

Abstract The growing demand for sustainable energy sources has spurred significant studies to optimize the potency of fuel cell technology. Direct urea fuel cell (DUFC) has gained attention due to their energy density, eco‐friendliness, and...

DOAJ Open Access (DOAJ) DOI: 10.1002/celc.202300637

We Are All in This Together: Effects of Synchrony in Social Media Videos on Viewers’ Experience of Self-Transcendent Emotions

Mary Beth Oliver, Alex Paloma, Yansheng Liu, Yilan Guo et al. • Behavioral Sciences (2026)

Synchrony refers to similarity in movement between different actors such as dancing, clapping, or singing together. Prior research demonstrates that synchrony often elicits emotions that may be characterized as aesthetic or self-transcenden...

DOAJ Open Access (DOAJ) DOI: 10.3390/bs16071155

Movement behaviors and their association with depressive symptoms in Brazilian adolescents: A cross-sectional study

Bruno Gonçalves Galdino da Costa, Jean-Philippe Chaput, Marcus Vinicius Veber Lopes, Luis Eduardo Argenta Malheiros et al. • Journal of Sport and Health Science (2022)

Background: Physical activity, sleep, and sedentary behaviors compose 24-h movement behaviors and have been independently associated with depressive symptoms. However, it is not clear whether it is the movement behavior itself or other cont...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jshs.2020.08.003

Evaluation of polybenzimidazole-based polymers for the removal of uranium, thorium and palladium from aqueous medium

V. Vijaya Kumar, C. Ramesh Kumar, A. Suresh, S. Jayalakshmi et al. • Royal Society Open Science (2018)

Four types of polybenzimidazole (PBI)-based polymers (m-PBI, p-PBI, pyridine-based m-PBI and alkylated m-PBI) have been prepared and characterized. Extraction behaviour of heavy metal ions, viz. U(VI), Th(IV) and Pd(II), with these polymers...

DOAJ Open Access (DOAJ) DOI: 10.1098/rsos.171701

Conjugate mixed convection heat transfer with internal heat generation in a lid-driven enclosure with spinning solid cylinder

Md. Jisan Mahmud, Ahmed Imtiaz Rais, Md. Rakib Hossain, Sumon Saha • Heliyon (2022)

The current study investigates conjugate mixed convection heat transmission with internal heat generation in a square enclosure driven by a sliding lid and a solid cylinder with a heat-conducting surface at its center. The enclosure has a s...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2022.e11968

A Dynamic Discriminative Canonical Correlation Analysis via Adaptive Weight Scheme

Shuzhi Su, Penglian Gao, Yanmin Zhu, Xingzhu Liang et al. • IEEE Access (2021)

In multi-view learning, massive literature is devoted to exploring the intrinsic structure between cross-views. It is well known that canonical correlation analysis (CCA) is a conventional multi-view learning method, which considers the cor...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2021.3118023

An object-oriented design method to implement the mechatronic system control by using hybrid automata and real-time UML

Vu Duy Quang, Ngo Van Hien • Vietnam Journal of Mechanics (2011)

In this paper, we present a method, which is based on hybrid automata and Real-Time Unified Modeling Language (UML) to analyze and design the control parts of mechatronic systems with input or output events and signals in order to effective...

DOAJ Open Access (DOAJ) DOI: 10.15625/0866-7136/33/3/211

The Influence of Applying PVD Coatings on Adhesion Wear Resistance of Quenching and Tempering Steels

Ivica Kladarić, Stjepan Golubić, Danko Ćorić, Andrijana Milinović • Metals (2026)

The article examines the effect of different types of two-layer nanostructured coatings (cVIc and nACVIc) deposited on three types of steel substrates, 45S20, C45E, and 42CrMo4, to determine the resistance to adhesive wear of the substrate/...

DOAJ Open Access (DOAJ) DOI: 10.3390/met16020130

Forecasting Warping Deformation Using Multivariate Thermal Time Series and K-Nearest Neighbors in Fused Deposition Modeling

Donghwan Song, Adrian Matias Chung Baek, Jageon Koo, Moise Busogi et al. • Applied Sciences (2020)

Over the past decades, additive manufacturing has rapidly advanced due to its advantages in enabling diverse material usage and complex design production. Nevertheless, the technology has limitations in terms of quality, as printed products...

DOAJ Open Access (DOAJ) DOI: 10.3390/app10248951

Dispersal homogenizes communities via immigration even at low rates in a simplified synthetic bacterial metacommunity

Stilianos Fodelianakis, Alexander Lorz, Adriana Valenzuela-Cuevas, Alan Barozzi et al. • Nature Communications (2019)

Fodelianakis et al. examine the role of immigration and selection as the means of community homogenisation in a bacterial metacommunity. They confirmed the role of immigration in homogenisation, even when immigration was four times slower t...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41467-019-09306-7

Identification of potential welfare and survival indicators for stranded cetaceans through international, interdisciplinary expert opinion

Rebecca M. Boys, Ngaio J. Beausoleil, Matthew D. M. Pawley, Katherine E. Littlewood et al. • Royal Society Open Science (2022)

Management of live cetacean strandings generally focuses on refloating animals, yet there is a lack of scientific data to inform decision-making. Valid indicators that are practical to measure are needed to assess welfare status and surviva...

DOAJ Open Access (DOAJ) DOI: 10.1098/rsos.220646

Spatiotemporal patterns of remotely sensed phenology and their response to climate change and topography in subtropical bamboo forests during 2001-2017: a case study in Zhejiang Province, China

Xuejian Li, Huaqiang Du, Guomo Zhou, Fangjie Mao et al. • GIScience & Remote Sensing (2023)

Vegetation phenology has long been adapted to environmental change and is highly sensitive to climate change. Shifts in phenology also affect feedbacks of vegetation to environmental factors such as topography and climate by influencing spati...

DOAJ Open Access (DOAJ) DOI: 10.1080/15481603.2022.2163575

Multipoint boundary value problems for higher-order Hadamard fractional neutral differential equations and inclusions

Qing Zhang, Chunshuo Li, Lina Zhou, Qiaoluan Li • Boundary Value Problems (2023)

Abstract In this paper, we consider fractional neutral differential equations with multipoint boundary value conditions involving Hadamard derivatives and integrals. We obtain the existence and uniqueness of the solution of the equation by ...

DOAJ Open Access (DOAJ) DOI: 10.1186/s13661-023-01697-3

Relationship between Pb relative bioavailability and bioaccessibility in phosphate amended soil: Uncertainty associated with predicting Pb immobilization efficacy using in vitro assays

Farzana Kastury, Silvia Placitu, John Boland, Ranju R. Karna et al. • Environment International (2019)

In this study, an in vitro in vivo correlation (IVIVC) between Pb in vitro bioaccessibility (IVBA) and relative bioavailability (RBA) was explored to determine whether the efficacy of Pb immobilization in phosphate amended soils could be pr...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.envint.2019.104967

Metabolic modeling-based drug repurposing in Glioblastoma

Claudio Tomi-Andrino, Alina Pandele, Klaus Winzer, John King et al. • Scientific Reports (2022)

Abstract The manifestation of intra- and inter-tumor heterogeneity hinders the development of ubiquitous cancer treatments, thus requiring a tailored therapy for each cancer type. Specifically, the reprogramming of cellular metabolism has b...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-022-14721-w

Consumers' Perception of Urban Farming—An Exploratory Study

Carola Grebitus, Lauren Chenarides, Rebecca Muenich, Alex Mahalov • Frontiers in Sustainable Food Systems (2020)

Urban agriculture offers the opportunity to provide fresh, local food to urban communities. However, urban agriculture can only be successfully embedded in urban areas if consumers perceive urban farming positively and accept urban farms in...

DOAJ Open Access (DOAJ) DOI: 10.3389/fsufs.2020.00079

The Prehistoric Indian Ayurvedic Rice Shashtika Is an Extant Early Domesticate With a Distinct Selection History

Mariet Jose, R. Dinesh Raj, M. R. Vinitha, Remya Madhu et al. • Frontiers in Plant Science (2018)

Fully domesticated rice is considered to have emerged in India at approximately 2000 B.C., although its origin in India remains a contentious issue. The fast-growing 60-days rice strain described in the Vedic literature (1900–500 B.C.) and ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fpls.2018.01203