Results 41 to 50 of about 146,403 (298)

Correlations between O VI Absorbers and Galaxies at Low Redshift

open access: yes, 2008
We investigate the relationship between galaxies and metal-line absorption systems in a large-scale cosmological simulation with galaxy formation. Our detailed treatment of metal enrichment and non-equilibrium calculation of oxygen species allow us, for ...
Cen   +21 more
core   +1 more source

On The Reddening in X-ray Absorbed Seyfert 1 Galaxies [PDF]

open access: yes, 2000
There are several Seyfert galaxies for which there is a discrepancy between the small column of neutral hydrogen deduced from X-ray observations and the much greater column derived from the reddening of the optical/UV emission lines and continuum.
Antonucci R. R.   +17 more
core   +3 more sources

Brock's approaching zero method improved as approaching fixed point frequency to solve optimum damping ratio of dynamic vibration absorber in machine tools and experimental confirmation.

open access: yesPLoS ONE
The design parameters of the dynamic vibration absorber significantly affect the motion performance of the main vibration system. The Brock's approaching zero method was improved as approaching the fixed point frequency method.
Hongliang Tian, Xixiao Liang, Xuan Du
doaj   +1 more source

Energy Conversion: A Comparison of Fix- and Self-Referenced Wave Energy Converters

open access: yesEnergies, 2016
The paper presents an investigation of fix-referenced and self-referenced wave energy converters and a comparison of their corresponding wave energy conversion capacities from real seas. For conducting the comparisons, two popular wave energy converters,
Wanan Sheng, Tony Lewis
doaj   +1 more source

Wave Energy Converter’s Slack and Stiff Connection: Study of Absorbed Power in Irregular Waves

open access: yesEnergies, 2021
Two different concepts of wave energy converter coupled to the novel C-GEN linear generator have been studied numerically, including the evaluation of different buoy sizes.
Tatiana Potapenko   +3 more
doaj   +1 more source

Eliminating stray radiation inside large area imaging arrays

open access: yes, 2018
With increasing array size, it is increasingly important to control stray radiation inside the detector chips themselves. We demonstrate this effect with focal plane arrays of absorber coupled Lumped Element microwave Kinetic Inductance Detectors (LEKIDs)
Barry, Peter   +12 more
core   +1 more source

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

Assessment of Renewable Sources for the Energy Consumption in Malta in the Mediterranean Sea

open access: yesEnergies, 2016
The main purpose of this paper is to analyze the energy production in the Maltese islands, focusing on the employment of renewable energies in order to increase their energy independence.
Vincenzo Franzitta   +3 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Analysis of the Wave Characteristics of the Baltic Sea in Terms of the Use of Wave Energy Converters

open access: yesApplied Sciences
Obtaining electricity from water wave energy using energy converters has a long history, but there are still relatively few commercial devices in the world compared to other solutions using renewable energy. The probable reasons for this state of affairs
Karol Jakub Listewnik   +1 more
doaj   +1 more source

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