Reset
Showing 20 of 5,045 academic articles

Soft x-ray high-harmonic generation in an anti-resonant hollow core fiber driven by a 3 μm ultrafast laser

D. Morrill, W. Hettel, D. Carlson, B. Shearer et al. • APL Photonics (2025)

High-harmonic upconversion driven by a mid-infrared femtosecond laser can generate coherent soft x-ray beams in a tabletop-scale setup. Here, we report on a compact ytterbium-pumped optical parametric chirped pulse amplifier (OPCPA) laser s...

DOAJ Open Access (DOAJ) DOI: 10.1063/5.0292771

Influence of chemical composition and discontinuities on energy transformation and rock mass behaviour: Insights into geological dynamic

Naeem Abbas, Kegang Li, Yewuhalashet Fissha, Zemicael Gebrehiwot et al. • The Journal of Engineering (2024)

Abstract In this study, efforts were made to incorporate the influence of discontinuities and failure modes of rock into the classification of rock masses. The past tectonic activities may create microfractures in the rock body therefore th...

DOAJ Open Access (DOAJ) DOI: 10.1049/tje2.12388

EXARIS Model Development: Enhancing Elementary Scientific and Digital Literacy

Exsaris Januar, Nurhizrah Gistituati, Yanti Fitria, Alwen Bentri et al. • Educational Process: International Journal (2025)

Background/purpose. Study addresses the problem of low scientific and digital literacy among Grade 6 students (Phase C) in the IPAS (Science and Social Studies) subject under the Merdeka Curriculum, particularly in the theme “Our Endangered...

DOAJ Open Access (DOAJ) DOI: 10.22521/edupij.2025.18.450

Effect of Prior Rolling on Microstructures and Property of Diffusion-Bonded Mg/Al Alloy

Yunlong Ding, Jialian Shi, Dongying Ju • Advances in Materials Science and Engineering (2019)

In this study, magnesium alloy AZ91, which was cast by double roll casting system, was rolled by a rolling mill. Then, rolled magnesium alloy and magnesium alloy without being rolled were, respectively, welded with aluminum alloy 6061 by di...

DOAJ Open Access (DOAJ) DOI: 10.1155/2019/4535984

Recent advances of two-dimensional materials in smart drug delivery nano-systems

Hua Zhang, Taojian Fan, Wen Chen, Yingchun Li et al. • Bioactive Materials (2020)

Smart drug delivery nano-systems show significant changes in their physical or chemical properties in response to slight change in environmental physical and/or chemical signals, and further releasing drugs adjusted to the progression of th...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.bioactmat.2020.06.012

Dynamic Assembly of Microgels and Polymers at Non‐Aqueous Liquid/Liquid Interfaces

Xin Guan, Yang Liu, Lianwei Li, Man‐Hin Kwok et al. • Advanced Science (2025)

Abstract Particle assembly at liquid–liquid interfaces presents a promising bottom‐up strategy for creating supramolecular materials with advanced functionalities. However, the significantly lower interfacial tension observed in immiscible ...

DOAJ Open Access (DOAJ) DOI: 10.1002/advs.202415642

The Evolution of COVID-19 Transmission with Superspreaders Class under Classical and Caputo Piecewise Operators: Real Data Perspective from India, France, and Italy

Shabir Ahmad, Salma Haque, Khalid Ali Khan, Nabil Mlaiki • Fractal and Fractional (2023)

In this study, we analyze the transmission of the COVID-19 model by using a piecewise operator in the classical Caputo sense. The existence along with the uniqueness of the solution of the COVID-19 model under a piecewise derivative is pres...

DOAJ Open Access (DOAJ) DOI: 10.3390/fractalfract7070501

Finite element analysis on the near field properties of metallic cavities with atomic sharpness

Qiyuan Dai, Liang Ma, Li Li, Guangjun Tian • Results in Physics (2023)

Using finite element calculations, we investigated the near field properties of two types of commonly used metal nanostructures (a tip-substrate model representing a scanning tunneling microscope type setup (TS) and a nanoparticle-on-mirror...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.rinp.2023.106360

Materials science of concrete

Jan P. Skalny, Sidney Mindess, Francis Young • American Ceramic Society eBooks (1989)

Prediction of a Portland Cement's Properties from its Chemical and Mineralogical Compositon. Tricalcium Silicate Hydration: A Historical Overview. Thermodynamics of Hydration Reactions. Tricalcium Silicate Hydration: A Historical Overview. ...

OPENALEX

Thermodynamics and Kinetics in Materials Science

Boris S. Bokstein, Mikhail I. Mendelev, David J. Srolovitz • Oxford University Press eBooks (2005)

This text presents a concise and thorough introduction to the main concepts and practical applications of thermodynamics and kinetics in materials science. It is designed with two types of uses in mind: firstly for one or two semester unive...

OPENALEX DOI: https://doi.org/10.1093/oso/9780198528036.001.0001

Study on Association Between Lipid Profile Values and Psychiatric Disorders

SHINY JOHN, KAVITARATI DHARWADKAR, MANJUNATH V MOTAGI • Journal of Clinical and Diagnostic Research (2014)

Background: Cholesterol is especially abundant in nervous system, where it plays important role in different aspects of cellular structure (e.g. fluidity of cell membranes) and function (e.g. membrane). Several studies showed that there ...

DOAJ Open Access (DOAJ) DOI: 10.7860/JCDR/2014/10383.5301

An In Vitro Study of Local Oxygen Therapy as Adjunctive Antimicrobial Therapeutic Option for Patients with Periodontitis

Lena Katharina Müller-Heupt, Anja Eckelt, John Eckelt, Jonathan Groß et al. • Antibiotics (2023)

Periodontitis is a common global disease caused by bacterial dysbiosis leading to tissue destruction, and it is strongly associated with anaerobic bacterial colonization. Therapeutic strategies such as oxygen therapy have been developed to ...

DOAJ Open Access (DOAJ) DOI: 10.3390/antibiotics12060990

Materials for Total Hip Joint Prostheses: Biaxial Flexural Strength of Two Ceramic Systems

Bojana TABAKOVA, Ivanka KALIMANOVA, Ina YANKOVA, Hristiana NIKOLOVA • The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science (2010)

Total hip joint replacement is one of the most successful orthopaedic surgeries in the last decade. Essential part of total hip joint prostheses is the mobile joint “hemispherical head - hemispherical cup”. Functional properties and durabil...

DOAJ Open Access (DOAJ)

External Thermal Insulation Composite Systems: Critical Parameters for Surface Hygrothermal Behaviour

Eva Barreira, Vasco P. de Freitas • Advances in Materials Science and Engineering (2014)

External Thermal Insulation Composite Systems (ETICS) are often used in Europe. Despite its thermal advantages, low cost, and ease of application, this system has serious problems of biological growth causing the cladding defacement. Recent...

DOAJ Open Access (DOAJ) DOI: 10.1155/2014/650752

Superconductivity emerging from a stripe charge order in IrTe2 nanoflakes

Sungyu Park, So Young Kim, Hyoung Kug Kim, Min Jeong Kim et al. • Nature Communications (2021)

Superconductivity often appears due to suppression of competing electronic orders. Here, the authors present a contrary example showing a superconducting dome inside the parent phase with a stripe charge order in IrTe2 nanoflakes and identi...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41467-021-23310-w

Tuning the effective spin-orbit coupling in molecular semiconductors

Sam Schott, Erik R. McNellis, Christian B. Nielsen, Hung-Yang Chen et al. • Nature Communications (2017)

Organic semiconductors with long spin lifetime hold promise for future spintronics devices that can process and store information. Here, Schottet al. perform a systematic study of the strength of spin-orbit coupling and its effect on spin l...

DOAJ Open Access (DOAJ) DOI: 10.1038/ncomms15200

Highly Sensitive and Specific Detection of Influenza A Viruses Using Bimolecular Fluorescence Complementation (BiFC) Reporter System

Ui Jin Lee, Yunkwang Oh, Oh Seok Kwon, Yong-Beom Shin et al. • Biosensors (2023)

In this study, we developed a highly sensitive and specific bimolecular fluorescence complementation (BiFC)-based influenza A virus (IAV)-sensing system by combining a galactose/glucose-binding protein (GGBP) with an N-terminal large domain...

DOAJ Open Access (DOAJ) DOI: 10.3390/bios13080782