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السجلات المعروضة 31 -- 40 من 47
Stratigraphy, faciès analysis and reservoir characterization of the Upper Jurassic Arab "C", Qatar, Arabian Gulf
(
Gebruder Borntraeger Verlagsbuchhandlung
, 2011 , Article)
The Arab C is a member of the Jurassic Arab Formation, one of the largest carbonate reservoirs in the Arabian Basin. Detailed petrographic analysis of cores and thin sections from selected wells in the onshore Dukhan ...
Adaptive and unequal probability survey designs for environmental management
(
The Modelling and Simulation Society of Australia and New Zealand Inc
, 2011 , Conference Paper)
Designing an efficient large-area survey is a challenge, especially in environmental science when many populations are rare and clustered. Adaptive and unequal probability sampling designs are appealing when populations ...
Multi-species attributes as the condition for adaptive sampling of rare species using two-stage sequential sampling with an auxiliary variable
(
The Modelling and Simulation Society of Australia and New Zealand Inc
, 2011 , Conference Paper)
Assessing populations of rare species is challenging because of the large effort required to locate patches of occupied habitat and achieve precise estimates of density and abundance. The presence of a rare species has ...
Use of post-stratification in composite sampling for estimating mean
(
Springer
, 2011 , Article)
We show with the results of a study conducted in the Hamadan Province, Iran as to how the use of composite sampling for estimating mean zinc concentration in the soil can help reduce analytical costs by reducing the number ...
Empirical likelihood inference for population quantiles with unbalanced ranked set samples
(
Taylor & Francis Group
, 2011 , Article)
We consider nonparametric interval estimation for the population quantiles based on unbalanced ranked set samples. We derived the large sample distribution of the empirical log likelihood ratio statistic for the quantiles. ...
Edge-maximal graphs without θ 7 -graphs
(
Tokyo University of Science
, 2011 , Article)
Let G(n; θ2k+1, ≥ δ) denote the class of non-bipartite θ2k+1-free graphs on n vertices and minimum degree at least δ and let f (n; θ2k+1, ≥ δ) = max{ε(G): G ∈ G(n; θ2k+1, ≥ δ)}. In this paper we determinj an upker bound ...
Antihydrogen physics: Gravitation and spectroscopy in AEgIS
(
Canadian science publishing
, 2011 , Article)
AEgIS (Antimatter experiment: gravity, interferometry, spectroscopy) is an experiment approved by CERN with the goal of studying antihydrogen physics. In AEgIS, antihydrogen will be produced by charge exchange reactions ...
On the boundedness of rough oscillatory singular integrals on Triebel-Lizorkin spaces
(
springer link
, 2011 , Article)
We obtain appropriate sharp bounds on Triebel-Lizorkin spaces for rough oscillatory integrals with polynomial phase. By using these bounds and using an extrapolation argument we obtain some new and previously known results ...
On certain estimates of rough oscillatory singular integrals
(2011 , Article)
We obtain appropriate sharp estimates for rough oscillatory integrals with polynomial phase. Our results represent significant improvements as well as natural extensions of what was known previously.
Formation of arsenic sulfide on GaAs surface under illumination in acidified thiourea electrolytes
(
Elsevier
, 2011 , Article)
The present article reports the formation of arsenic sulfide films on GaAs by the potentiodynamic polarization in acidified thiourea (TU) electrolytes under photo-illumination. Oxidation of TU competes with the oxidation ...