Results 21 to 30 of about 4,079,422 (304)

On the Anticorrelation Between Galaxy Light Concentration and X-ray-to-Optical Flux Ratio [PDF]

open access: yes, 2009
Active Galactic Nuclei (AGN) play an important role in many aspects of the modern cosmology, and of particular interest is the issue of the interplay between AGN and their host galaxy. Using X-ray and optical data sets, we have explored the properties of
A. Bongiovanni   +39 more
core   +2 more sources

Instabilities and soot formation in high-pressure, rich, iso-octane-air explosion flames - 1. Dynamical structure [PDF]

open access: yes, 2007
Simultaneous OH planar laser-induced fluorescence (PLIF) and Rayleigh scattering measurements have been performed on 2-bar rich iso-octane–air explosion flames obtained in the optically accessible Leeds combustion bomb.
Lockett, R. D., Woolley, R.
core   +1 more source

Distribution of interstitial stem cells in Hydra [PDF]

open access: yes, 1979
The distribution of interstitial stem cells along the Hydra body column was determined using a simplified cloning assay. The assay measures stem cells as clone-forming units (CFU) in aggregates of nitrogen mustard inactivated Hydra tissue.
Bode   +16 more
core   +2 more sources

Dynamics of 137Cs transfer factors and concentration ratios in grass of natural meadows on peat-bog soils in the early period after imitation of the radioactive fallout

open access: yesЯдерна фізика та енергетика, 2019
Results of the small-field experimental study of the dynamics of biological availability of freshly added standard radioactive solution of 137Cs in peat-bog soil are presented.
I. M. Maloshtan   +2 more
doaj   +1 more source

Diffusion and convection of gaseous and fine particulate from a chimney [PDF]

open access: yes, 2006
Particle dispersion from a high chimney is considered and an expression for the subsequent concentration of the particulate deposited on the ground is derived.
Mackay, Cameron   +2 more
core   +1 more source

Odor concentration invariance by chemical ratio coding [PDF]

open access: yesFrontiers in Systems Neuroscience, 2008
Many animal species rely on chemical signals to extract ecologically important information from the environment. Yet in natural conditions chemical signals will frequently undergo concentration changes that produce differences in both level and pattern of activation of olfactory receptor neurons.
Uchida, Naoshige, Mainen, Zachary F.
openaire   +4 more sources

Subsidy distribution among the subjects of agro-industrial complex in Kazakhstan

open access: yesАграрная наука Евро-Северо-Востока, 2023
The problem of limited budget funds for subsidizing agriculture is acute in Kazakhstan. Under these conditions, it is important to ensure targeting of subsidies, when they are delivered to those producers who are able to use them effectively for the ...
S. K. Seitov
doaj   +1 more source

Secondary and compound concentrators for parabolic dish solar thermal power systems [PDF]

open access: yes, 1981
A secondary optical element may be added to a parabolic dish solar concentrator to increase the geometric concentration ratio attainable at a given intercept factor.
Jaffe, L. D., Poon, P. T.
core   +2 more sources

Decomposition Characteristics of SF6 and Partial Discharge Recognition under Negative DC Conditions

open access: yesEnergies, 2017
Four typical types of artificial defects are designed in conducting the decomposition experiments of SF6 gas to obtain and understand the decomposition characteristics of SF6 gas-insulated medium under different types of negative DC partial discharge (DC-
Ju Tang   +5 more
doaj   +1 more source

Parametric study on the heating values of products as via steam gasification of palm waste using CaO as sorbent material [PDF]

open access: yes, 2016
In Malaysia, due to abundance of oil palm waste, it is a good candidate to be used as a feedstock for syngas and hydrogen production. Biomass steam gasification is one of the promising methods for syngas production.
Ahmad, Murni Melati   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy