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Academic Articles & Research Papers
Showing 20 of 2,095 academic articles
Hierpa R, Gizaw S • Data in Brief
(2026)
PMC
PMC Public Access (View-Only)
DOI: 10.1016/j.dib.2026.113376
PMC: PMC13735286
Ryan W. Pfeifle, Barry Rothberg, Kimberly A. Weaver, Remington O. Sexton et al. • The Astrophysical Journal
(2023)
Theoretical studies predict that the most significant growth of supermassive black holes (SMBHs) occurs in late-stage mergers, coinciding with the manifestation of dual active galactic nuclei (AGNs), and both major and minor mergers are exp...
DOAJ
Open Access (DOAJ)
DOI: 10.3847/1538-4357/acbd45
Hai-Qin Wang, Fang-Kun Peng, Rui Xue, Lu-Ming Sun • The Astrophysical Journal
(2024)
The multiwavelength emissions, especially gamma-rays, of active galactic nuclei (AGNs) are essential for studying the physical properties of jets emanating from supermassive black holes at galaxy centers. However, for high-redshift AGNs, it...
DOAJ
Open Access (DOAJ)
DOI: 10.3847/1538-4357/ad968d
Guang-Yuan Song, Zhen-Zhao Tao, Bo-Lun Huang, Bo Yu et al. • The Astronomical Journal
(2026)
The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world’s largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives. We conducted a targeted search...
DOAJ
Open Access (DOAJ)
DOI: 10.3847/1538-3881/ae8516
Malcolm S. Longair • Cambridge University Press eBooks
(2006)
Radio astronomy and high-energy astrophysics The early history of radio astronomy was recounted in Section 7.3; that story ended in the mid 1950s, by which time the Galactic and extragalactic nature of the discrete radio sources was establi...
OPENALEX
DOI: https://doi.org/10.1017/cbo9781139878319.012
Antonio Rodriguez, Kareem El-Badry, Iris de Ruiter, Kaustubh Rajwade et al. • The Open Journal of Astrophysics
(2026)
Long period radio transients (LPTs) are the slowest radio-pulsing sources ever found, with the current population spanning periods of seven minutes to over six hours. Two of the thirteen published LPTs, ILT J1101+5521 and GLEAM-X J0704--37,...
DOAJ
Open Access (DOAJ)
DOI: 10.33232/001c.167716
Yingmei Qin, Ziyu Hu, Yi Chen, Jing Liu et al. • Entropy
(2022)
Fatigue driving is one of the major factors that leads to traffic accidents. Long-term monotonous driving can easily cause a decrease in the driver’s attention and vigilance, manifesting a fatigue effect. This paper proposes a means of reve...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/e24081093
M. I. Desai, J. F. Drake, T. Phan, Z. Yin et al. • The Astrophysical Journal Letters
(2025)
We report observations of direct evidence of energetic protons being accelerated above ∼400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NASA’s Parker Solar Probe (PSP) at a distance of ∼16.25 solar ...
DOAJ
Open Access (DOAJ)
DOI: 10.3847/2041-8213/ada697
Juhan Frank, Andrew R. King, Derek Jeffrey Raine • Cambridge University Press eBooks
(2002)
Accretion Power in Astrophysics examines accretion as a source of energy in both binary star systems containing compact objects, and in active galactic nuclei. Assuming a basic knowledge of physics, the authors describe the physical process...
OPENALEX
DOI: https://doi.org/10.1017/cbo9781139164245
Alice Allen, Kimberly DuPrie, G. Bruce Berriman, R. J. Hanisch et al. • arXiv (Cornell University)
(2012)
The Astrophysics Source Code Library (ASCL), founded in 1999, is a free on-line registry for source codes of interest to astronomers and astrophysicists. The library is housed on the discussion forum for Astronomy Picture of the Day (APOD) ...
OPENALEX
Open Access
DOI: https://doi.org/10.48550/arxiv.1212.1916
Erika Meškienė, Teodoras Tamošiūnas • Socialiniai Tyrimai
(2019)
The relevance of the research. The emergence of temporary employment as an atypical form of work organization has become a relevant topic in the research of human resource management processes. Researchers analyze temporary employment not o...
DOAJ
Open Access (DOAJ)
DOI: 10.21277/st.v42i2.277
Jingyi Huang, Xu Wei, Zaimin Zheng, Xiaopeng Su et al. • Scientific Reports
(2024)
Abstract To investigate the fractal characteristics of rock crack distributions during the loading process, discrete element method was used to make rock samples with joints and record the crack propagation. The Box-counting method was used...
DOAJ
Open Access (DOAJ)
DOI: 10.1038/s41598-024-69121-z
Hafsa Shabeer, Shankaran Rukmini Niveditha, Thejasvi Krishnamurthy, Gayathri Bilagali Ramdas • Journal of Clinical and Diagnostic Research
(2026)
Introduction: The examination of Bone Marrow Aspirate (BMA) smears and Biopsies (BMBx) are well established in the diagnosis of various haematological and non-haematological disorders. While both techniques have unique advantages over the o...
DOAJ
Open Access (DOAJ)
DOI: 10.7860/JCDR/2026/81391.23576
Sabrina Chiodo, Sonia M. Grandi, Jessica Gronsbell, Laura C. Rosella • International Journal of Population Data Science
(2026)
Introduction
Perinatal outcomes are shaped by clinical, social, and environmental factors, yet Canada lacks a nationally representative pregnancy cohort capturing these influences at the individual-level. This gap has limited the ability to...
DOAJ
Open Access (DOAJ)
DOI: 10.23889/ijpds.v8i6.3358
E. Kocan, M. Pejanovic-Djurisic • Telfor Journal
(2012)
In this paper we present analytical performance evaluation of a dual-hop OFDM amplify-andforward (AF) variable gain (VG) relay system implementing ordered subcarrier mapping (SCM) at the relay station (R), considered to be a very interestin...
DOAJ
Open Access (DOAJ)
Marco Antonio Montoya, Cássia Aparecida Pasqual, Ricardo Luis Lopes, Joaquim José Martins Guilhoto • Economia Aplicada
(2016)
The article evaluates the structure of Brazilian agribusiness in their components such as income, employment, sectorial energy consumption, and CO2 emissions. An energy matrix with 56 consumer sectors compatible with the 56 sectors of Brazi...
DOAJ
Open Access (DOAJ)
DOI: 10.11606/1413-8050/ea134600
Zhifu Yin, Zhifu Yin, Biao Lu, Yanbo Chen et al. • Frontiers in Bioengineering and Biotechnology
(2022)
Electron transport layer (ETL), one of the important layers for high-performing perovskite solar cells (PSCs), also has great potential in bioengineering applications. It could be used for biological sensors, biological imaging, and biomedi...
DOAJ
Open Access (DOAJ)
DOI: 10.3389/fbioe.2022.900269
M.I. Sayyed, Abdelmoneim Saleh, Anjan Kumar, Fatma Elzahraa Mansour • Nuclear Engineering and Technology
(2024)
Investigations were conducted on the addition of barium's impact on the radiation shielding and physical attributes of five different glasses, designated S1–S5, with varying BaO contents. Using two point sources namely Co60 and Cs137 along ...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.net.2024.03.038
Noran Ovidiu • E3S Web of Conferences
(2019)
Climate change, population growth, changing energy consumption patterns and the advent of feasible renewable energy sources has prompted governments worldwide to set targets for carbon emission reductions. The transition to a ‘near zero emi...
DOAJ
Open Access (DOAJ)
DOI: 10.1051/e3sconf/201911106033
Chadi Nohra, Bechara Nehme, Raymond Ghandour, Ossama Dankar et al. • IEEE Access
(2026)
The integration of communication networks into modern power systems introduces variable time delays that degrade the performance of traditional Load Frequency Control (LFC), while the shift towards renewable energy sources increases system ...
DOAJ
Open Access (DOAJ)
DOI: 10.1109/ACCESS.2026.3675126