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A deep learning recognition model for landslide terrain based on multi-source data fusion

Jian HUANG, Xin LI, Fang CHEN, Ru CUI et al. • Zhongguo dizhi zaihai yu fangzhi xuebao (2022)

The traditional high-level remote landslide recognition efficiency which relies on the artificial discrimination of geological experts is low. In this paper, an automatic landslide terrain recognition model based on deep learning is develop...

DOAJ Open Access (DOAJ) DOI: 10.16031/j.cnki.issn.1003-8035.2022.02-05

Enhanced Deep Learning Model for Classification of Retinal Optical Coherence Tomography Images

Esraa Hassan, Samir Elmougy, Mai R. Ibraheem, M. Shamim Hossain et al. • Sensors (2023)

Retinal optical coherence tomography (OCT) imaging is a valuable tool for assessing the condition of the back part of the eye. The condition has a great effect on the specificity of diagnosis, the monitoring of many physiological and pathol...

DOAJ Open Access (DOAJ) DOI: 10.3390/s23125393

Ocular manifestations in autism spectrum disorder

Ning-Yu Wang, Zi-Yu Zhu, Zi-Yun Jiao, Nai-Rong Pan et al. • International Journal of Ophthalmology (2025)

Autism spectrum disorder (ASD) represents a neurodevelopmental disorder that has been the focus of numerous studies on the central nervous system (CNS). The embryological origin of the brain and retina is shared, with the axons of retinal g...

DOAJ Open Access (DOAJ) DOI: 10.18240/ijo.2025.10.25

Subsecond optically controlled domain switching in freestanding ferroelectric BaTiO3 membrane

Subhajit Pal, Lan-Tien Hsu, Haoying Sun, Sheng-Han Teng et al. • Nature Communications (2025)

Abstract The quest to develop energy-efficient and fast optoelectronic control of memory devices is essential. In this respect, ferroelectric materials are gaining tremendous importance in information and communication technology. Here, we ...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41467-025-58592-x

Microwave Photonic Techniques in Phase-Noise Measurements of Microwave Sources: A Review of Fiber-Optic Delay-Line Methods

Andrej Lavrič, Matjaž Vidmar, Boštjan Batagelj • Photonics (2026)

Microwave photonics has recently come to the forefront as a valuable approach to generating, processing, and measuring signals in high-performance domains such as communication, radar, and timing systems. Recent studies have introduced a ra...

DOAJ Open Access (DOAJ) DOI: 10.3390/photonics13010060

Systematic Literature Review of the Use of Computational Intelligence in the Routing and Spectrum Assignment Problem in Elastic Optical Networks

Renan V. B. Carvalho, Henrique A. Dinarte, Raul C. Almeida Jr., Carmelo J. A. Bastos-Filho • Journal of Microwaves, Optoelectronics and Electromagnetic Applications (2025)

Abstract Elastic optical networks (EONs) have characteristics that meet the growing demand for current and future bandwidth, such as 5G and Internet of Things. In EONs, connections must have a route and a spectrum slice available between th...

DOAJ Open Access (DOAJ) DOI: 10.1590/2179-10742025v24i1289308

Comparative investigation of similar and dissimilar AA6061/AA7075, AA6061/AA2024, and AA6061/AA5083 joints produced by continuous-drive friction welding

Ibrahim Sabry, Abdel-Hamid Ismail Mourad, Mohamed ElWakil • Journal of Materials Research and Technology (2026)

This study considers continuous-drive friction welding to compare AA6061/AA6061, AA6061/AA7075, AA6061/AA2024, and AA6061/AA5083 joints produced under the same nominal processing conditions. Optical and scanning electron microscopy, EDS, XR...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jmrt.2026.09.145

Effects of electron beam welding on the microstructure and impact properties of three reconstituted steels

HU Minglei, HU Bin, ZHANG Wei, LIU Xiaoou et al. • Fenmo yejin jishu (2025)

Specimen reconstitution technology is important for the in-service safety of reactor pressure vessels (RPVs) in nuclear power plants. To verify the feasibility of electron beam welding for the restructured specimens, the electron beam weldi...

DOAJ Open Access (DOAJ) DOI: 10.19591/j.cnki.cn11-1974/tf.2024070004

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

Investigation of the Structural, Electrical, and Optical Properties of the Nano-Scale GZO Thin Films on Glass and Flexible Polyimide Substrates

Fang-Hsing Wang, Kun-Neng Chen, Chao-Ming Hsu, Min-Chu Liu et al. • Nanomaterials (2016)

In this study, Ga2O3-doped ZnO (GZO) thin films were deposited on glass and flexible polyimide (PI) substrates at room temperature (300 K), 373 K, and 473 K by the radio frequency (RF) magnetron sputtering method. After finding the depositi...

DOAJ Open Access (DOAJ) DOI: 10.3390/nano6050088

A review on green synthesis of ZnO nanoparticles

Madhusmita Swain, Durgamadhab Mishra, Gourishankar Sahoo • Discover Applied Sciences (2025)

Abstract Nanoparticles and Nanostructured materials are playing an ever-important role in affordable healthcare, environment remediation, renewable energy, agriculture, consumer electronics, cosmetics etc. However, progress in these sectors...

DOAJ Open Access (DOAJ) DOI: 10.1007/s42452-025-06957-8

Materials science and engineering

CA (United States) Lawrence Livermore National Lab., D Lesuer, USDOE, Washington, DC (United States) (1997)

During FY-96, work within the Materials Science and Engineering Thrust Area was focused on material modeling. Our motivation for this work is to develop the capability to study the structural response of materials as well as material proces...

OPENALEX Open Access DOI: https://doi.org/10.2172/623044

Second hyperpolarizability of hexagonal graphene quantum dots: Effects of size and structural defects

Jiasheng Zhou, Haipeng Li, Ziqiang Yang, Zitao Zhang et al. • Carbon Trends (2021)

Graphene quantum dots (GQDs) are nanosized fragments of graphene containing a bandgap caused by edge effects and quantum confinement. These features enable GQDs to have attractive photonics applications. During the preparation of graphene n...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.cartre.2021.100054

High-temperature Infrared Transmission of Free-standing Diamond Films

HEI Li-fu, YAN Xiong-bo, ZHU Rui-hua, CHEN Liang-xian et al. • Cailiao gongcheng (2017)

The combination of low absorption and extreme mechanical and thermal properties make diamond a compelling choice for some more extreme far infrared (8-12 μm) window applications. The optical properties of CVD diamond at elevated temperature...

DOAJ Open Access (DOAJ) DOI: 10.11868/j.issn.1001-4381.2016.000792

Morphological dependent Indium incorporation in InGaN/GaN multiple quantum wells structure grown on 4° misoriented sapphire substrate

Teng Jiang, Shengrui Xu, Jincheng Zhang, Peixian Li et al. • AIP Advances (2016)

The epitaxial layers of InGaN/GaN MQWs structure were grown on both planar and vicinal sapphire substrates by metal organic chemical vapor deposition. By comparing the epitaxial layers grown on planar substrate, the sample grown on 4° misor...

DOAJ Open Access (DOAJ) DOI: 10.1063/1.4944862

Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique

Israa Hasan, Khawla Khashan, Aseel Hadi • Journal of Applied Sciences and Nanotechnology (2022)

Titanium dioxide nanoparticles were produced in this work by laser ablation of a high purity titanium objective immersed in distilled water. Optical and structural properties of the obtained TiO2 NPs using a Q-switched Nd: YAG laser of 1064...

DOAJ Open Access (DOAJ) DOI: 10.53293/jasn.2021.3600.1031

Diagnostic innovations in Equine Parasitology: a Nanogold-ELISA for sensitive serodiagnosis of migratory strongylus vulgaris larvae infections

Hanadi B. A. Baghdadi, Mohamed Abdelsalam, Marwa M. Attia • BMC Veterinary Research (2024)

Abstract Strongylus vulgaris, a devastating parasitic nematode in equids, causes life-threatening verminous aneurysms that are challenging to diagnose early. This study pioneered integrating nanotechnology into an indirect enzyme-linked imm...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12917-024-04389-x

Influence of Coating a TiO<sub>2</sub> Electrode with DN-F05 and DN-F05-Ag on the Photovoltaic Performance of DSSC Solar Cells

Agus Supriyanto, Diani Galih Saputri, Mohd Khairul Bin Ahmad, Artono Dwijo Sutomo et al. • Applied Sciences (2023)

A DSSC’s performance depends on its working electrode. Since this working electrode functions as an electron carrier, it affects how well DSSC solar cells perform. This study focused on working electrodes that use the dye DN-F05 and the Ag ...

DOAJ Open Access (DOAJ) DOI: 10.3390/app13137459

Light Absorption and Emission by Defects in Doped Nickel Oxide

Robert Karsthof, Ymir Kalmann Frodason, Augustinas Galeckas, Philip Michael Weiser et al. • Advanced Photonics Research (2022)

Nickel oxide is a versatile p‐type semiconducting oxide with many applications in optoelectronic devices, but high doping concentrations are often required to achieve necessary electrical conductivity. In contrast to many other transparent ...

DOAJ Open Access (DOAJ) DOI: 10.1002/adpr.202200138