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Academic Articles & Research Papers
Showing 20 of 234 academic articles
Hideki Maeda, Robert Švarc, Jiří Podolský • Journal of High Energy Physics
(2018)
Abstract Critical gravity is a quadratic curvature gravity in four dimensions which is ghost-free around the AdS background. Constructing a Vaidya-type exact solution, we show that the area of a black hole defined by a future outer trapping...
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Open Access (DOAJ)
DOI: 10.1007/JHEP06(2018)118
Divya Nimma, Okram Ricky Devi, Bibek Laishram, Janjhyam Venkata Naga Ramesh et al. • Desalination and Water Treatment
(2025)
Global warming is a phenomenon whereby the planet's exposure to the sun's radiation worsens from the high emission of gasses believed to trap heat within the atmosphere. Carbon dioxide (CO2) is the leading greenhouse gas majorly responsible...
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Open Access (DOAJ)
DOI: 10.1016/j.dwt.2024.100889
Mahbub Ul Islam Khan, Md. Ilius Hasan Pathan, Mohammad Mominur Rahman, Md. Maidul Islam et al. • IEEE Access
(2024)
Electric vehicles (EVs) are commonly recognized as environmentally friendly modes of transportation. They function by converting electrical energy into mechanical energy using different types of motors, which aligns with the sustainable pri...
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Open Access (DOAJ)
DOI: 10.1109/ACCESS.2024.3400913
Yang Yue, Jian Zhao, Jiangbing Du, Zhaohui Li • Sensors
(2021)
It is well known that optical fiber communications support the global communication networks nowadays, which originates from Charles K [...]...
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Open Access (DOAJ)
DOI: 10.3390/s21061969
Chengli Wang, Zhiwei Fang, Ailun Yi, Bingcheng Yang et al. • Light: Science & Applications
(2021)
Abstract The realization of high-quality (Q) resonators regardless of the underpinning material platforms has been a ceaseless pursuit, because the high-Q resonators provide an extreme environment for confining light to enable observations ...
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Open Access (DOAJ)
DOI: 10.1038/s41377-021-00584-9
Maolin Zhang, Yufeng Guo, Jun Zhang, Jiafei Yao et al. • Nanoscale Research Letters
(2020)
Abstract Double-gate tunnel field-effect transistor (DG TFET) is expected to extend the limitations of leakage current and subthreshold slope. However, it also suffers from the ambipolar behavior with the symmetrical source/drain architectu...
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Open Access (DOAJ)
DOI: 10.1186/s11671-020-03360-7
Gengxin Chen, Kaixuan Chen, Ranfeng Gan, Ziliang Ruan et al. • APL Photonics
(2022)
Thin-film lithium niobate (TFLN) based traveling-wave modulators maintain simultaneously excellent performances, including large modulation bandwidth, high extinction ratio, low optical loss, and high modulation efficiency. Nevertheless, th...
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Open Access (DOAJ)
DOI: 10.1063/5.0077232
Shobha Rani Depuru, Muralidhar Mahankali • Advances in Electrical and Electronic Engineering
(2017)
This paper proposes the utilization of a DC-DC boost converter as a mediator between a Solar Photovoltaic (SPV) array and the Voltage Source Inverters (VSI) in an SPV array powered air cooling system to attain maximum efficiency. The boost ...
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Open Access (DOAJ)
DOI: 10.15598/aeee.v15i2.2133
Mengda Li, Yutian Cheng, Tongjun Yu, Jiejun Wu et al. • Materials & Design
(2019)
Stress-induced self-separation is one of the most efficient process for preparing native GaN substrate. The control of GaN film thickness is the key point for GaN film separating from substrate completely. Considering the bowing of bilayer,...
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Open Access (DOAJ)
DOI: 10.1016/j.matdes.2019.107985
Ku Ping Cheng, Rajesh Elara Mohan, Nguyen Huu Khanh Nhan, Anh Vu Le • IEEE Access
(2019)
Extensive studies regarding complete coverage problems have been conducted, but a few tackle scenarios where the mobile robot is equipped with reconfigurable modules. The reconfigurability of these robots creates opportunities to develop ne...
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Open Access (DOAJ)
DOI: 10.1109/ACCESS.2019.2928467
H. K. Lee, Y.‐S. Choi • Electronics Letters
(2022)
Abstract Recent advancements in steady‐state visual evoked potential‐based brain‐computer interface have been made possible by the widespread use of various spatial filtering methods. Task‐related component analysis has superiority over exi...
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Open Access (DOAJ)
DOI: 10.1049/ell2.12540
Anita Mohanty, Subrat Kumar Mohanty, Bhagyalaxmi Jena, Ambarish G. Mohapatra et al. • IET Communications
(2022)
Abstract The delay in transportation of necessary items is due to traffic congestion throughout the world. This is a serious phenomenon which results in waste of time and fuel. The detection of road conditions and dissemination of traffic i...
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Open Access (DOAJ)
DOI: 10.1049/cmu2.12344
Deyang Zhang, Binhe Feng, Wenbo Guo, Jinbing Cheng et al. • Discover Nano
(2025)
Abstract A cost-effective and large-scale method for synthesizing ZnCo2O4 nanoflowers with surface oxygen vacancies as electrode materials for supercapacitors is presented. The existence of oxygen vacancies on the surface of the ZnCo2O4 nan...
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Open Access (DOAJ)
DOI: 10.1186/s11671-025-04347-y
Yiming Zhang, Yuxi Liu, Sailing He • IET Microwaves, Antennas & Propagation
(2025)
ABSTRACT A compact leaky‐wave antenna (LWA) with innovative phase‐shift asymmetric coupling for continuous beam scanning is presented. The antenna utilises a slow‐wave half‐mode substrate integrated waveguide with spoof surface plasmon pola...
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Open Access (DOAJ)
DOI: 10.1049/mia2.70071
Hsien-Chin Chiu, Chia-Hao Liu, Yi-Sheng Chang, Hsuan-Ling Kao et al. • IEEE Journal of the Electron Devices Society
(2019)
The surface morphology optimization of ohmic contacts and the Mg out-diffusion suppression of normally off p-GaN gate high-electron-mobility transistors (HEMTs) continue to be challenges in the power electronics industry in terms of the hig...
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Open Access (DOAJ)
DOI: 10.1109/JEDS.2019.2941519
Sundar Kunwar, Puran Pandey, Mao Sui, Quanzhen Zhang et al. • Nanoscale Research Letters
(2017)
Abstract Si-based optoelectronic devices embedded with metallic nanoparticles (NPs) have demonstrated the NP shape, size, spacing, and crystallinity dependent on light absorption and emission induced by the localized surface plasmon resonan...
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Open Access (DOAJ)
DOI: 10.1186/s11671-017-2138-1
Hsin-Cheng Lin, Wei-Teng Hsu, Tsai-Yu Chung, He-Wen Shen et al. • IEEE Access
(2024)
RF array performance of stacked nanosheets, stacked nanowires, FinFETs, and TreeFETs are optimized using double-sided gate contact, contact over active-gate, and proposed hybrid layouts. For the double-sided gate contact, gate resistance in...
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Open Access (DOAJ)
DOI: 10.1109/ACCESS.2024.3400673
Elena Alexander, Kam W. Leong • Frontiers in Nanotechnology
(2025)
IntroductionNanomaterials are extensively utilized in applications ranging from electronics to biomedical therapies; however, their widespread use has prompted concerns about potential toxicity in humans. Understanding the biodistribution a...
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Open Access (DOAJ)
DOI: 10.3389/fnano.2025.1512622
Sy Taffel • Westminster Papers in Communication and Culture
(2015)
This paper asks how coltan, casseterite, wolframite and gold ores mined in the Democratic Republic of Congo relate networked microelectronics to brutal warlords, and what legal and industrial actions have been enacted by activists, NGOs, po...
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Open Access (DOAJ)
DOI: 10.16997/wpcc.210
Tingting Jin, Xiaolan Qiu, Donghui Hu, Chibiao Ding • Remote Sensing
(2017)
Multichannel synthetic aperture radar (SAR) is a significant breakthrough to the inherent limitation between high-resolution and wide-swath (HRWS) compared with conventional SAR. Moving target indication (MTI) is an important application of...
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Open Access (DOAJ)
DOI: 10.3390/rs9050404