Results 71 to 80 of about 4,398,607 (320)

Optimization of micro grid with distributed energy resources using physics based meta heuristic techniques

open access: yesIET Renewable Power Generation, EarlyView., 2023
Optimization of proposed micro grid system is done using physics based meta heuristic methods. A grid connected micro grid consist of solar PV system, wind turbine (WT), micro gas turbine (MT), fuel cell (FC) and battery energy storage system (BESS).
Jayati Vaish   +2 more
wiley   +1 more source

Herschel-ATLAS: The connection between star formation and AGN activity in radio-loud and radio-quiet active galaxies

open access: yes, 2015
We examine the relationship between star formation and active galactic nuclei (AGN) activity by constructing matched samples of local (0 < z < 0.6) radio-loud and radio-quiet AGN in the Herschel-Astrophysical Terahertz Large Area Survey fields.
G. Gurkan   +8 more
semanticscholar   +1 more source

Scintillation Response of 0D Cs3Cu2I5 Thin Layers to Light‐ and Heavy‐Ion Irradiation

open access: yesAdvanced Photonics Research, EarlyView.
Driven by increasing interest in uncovering the remarkable photoluminescence quantum yield of Cs3Cu2I5, polycrystalline thin layers are synthesized to investigate its radioluminescence response to energetic ions. Its spectroscopic capability is assessed in a wide range of ion mass and internal excitation processes are explored.
Mátyás Hunyadi   +6 more
wiley   +1 more source

A New Physical Picture for Active Galactic Nuclei Lacking Optical Emission Lines

open access: yesThe Astrophysical Journal, 2023
In this work, we use ∼500 low-redshift ( z ∼ 0.1) X-ray active galactic nuclei (AGNs) observed by XMM-Newton and the Sloan Digital Sky Survey (SDSS) to investigate the prevalence and nature of AGNs that apparently lack optical emission lines (“optically ...
Christopher J. Agostino   +4 more
doaj   +1 more source

Galaxy Zoo: the effect of bar-driven fuelling on the presence of an active galactic nucleus in disc galaxies [PDF]

open access: yes, 2015
We study the influence of the presence of a strong bar in disc galaxies which host an active galactic nucleus (AGN). Using data from the Sloan Digital Sky Survey and morphological classificationsfromtheGalaxyZoo2project,wecreateavolume ...
Melanie A. Galloway   +9 more
semanticscholar   +1 more source

Exercise without Weight Loss Prevents Seasonal Decline in Vitamin D Metabolites: The VitaDEx Randomized Controlled Trial

open access: yesAdvanced Science, EarlyView.
In people with overweight or obesity, regular exercise even without weight loss or vitamin D supplementation completely prevents the usual winter decline in the vitamin D metabolite that maintains health at a cellular level, 1,25(OH)2D3, and ameliorates the decline in the vitamin D status marker 25(OH)D.
Oliver J. Perkin   +11 more
wiley   +1 more source

SEDs and Beaming Effect for Fermi Blazars [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2016
In this work, based on our previous calculations of spectral energy distributions for a sample of Fermi blazars (Fan et al. 2015a), we calculated the radio loudness and performed correlation analyses.
Jun-Hui Fan   +5 more
doaj   +1 more source

On characterizing the variability properties of X-ray light curves from active galaxies [PDF]

open access: yes, 2003
We review some practical aspects of measuring the amplitude of variability in 'red noise' light curves typical of those from active galactic nuclei (AGN). The quantities commonly used to estimate the variability amplitude in AGN light curves, such as the
S. Vaughan   +7 more
semanticscholar   +1 more source

AhR‐Dependent Induction of β‐Defensin 1 in Colonic Epithelial Cells Regulates Cross‐Talk between Gut Microbiota and Immune Response Leading to Attenuation of Colitis

open access: yesAdvanced Science, EarlyView.
This study identifies a key signaling pathway involving the environmental sensor AhR and antimicrobial peptides, such as BD‐1, in the regulation of intestinal homeostasis. It highlights the role of BD‐1 in regulating gut microbiota and the intestinal immune response.
Manikandan Palrasu   +16 more
wiley   +1 more source

The Frequency of Active and Quiescent Galaxies with Companions: Implications for the Feeding of the Nucleus [PDF]

open access: yes, 2001
We analyze the idea that nuclear activity, either AGN or star formation, can be triggered by interactions, studying the percentage of active, HII and quiescent galaxies with companions. Our sample was selected from the Palomar survey, and avoids selection biases faced by previous studies.
arxiv   +1 more source

Home - About - Disclaimer - Privacy