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السجلات المعروضة 771 -- 780 من 900
Bootstrap confidence intervals for adaptive cluster sampling design based on Horvitz-Thompson type estimators
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Kluwer Academic Publishers
, 2014 , Article)
Perez and Pontius (J Stat Comput Simul 76:755-764, 2006) introduced several bootstrap methods under adaptive cluster sampling using a Horvitz-Thompson type estimator. Using a simulation study, they showed that their proposed ...
Revealing the maternal demographic history of Panthera leo using ancient DNA and a spatially explicit genealogical analysis
(
BioMed Central Ltd.
, 2014 , Article)
Background: Understanding the demographic history of a population is critical to conservation and to our broader understanding of evolutionary processes. For many tropical large mammals, however, this aim is confounded by ...
Benthic marine algae of the arabian gulf: A critical review and analysis of distribution and diversity patterns
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Schweizerbart Science Publishers
, 2014 , Article)
The Arabian Gulf is an extremely inhospitable and physiologically-stressful environment for marine organisms since they are exposed to the widest range and the highest sea temperatures in the world, as well as high salinities. ...
Cluster validity index based on n-sphere
(
IEEE
, 2014 , Conference Paper)
In this paper, we propose a new cluster validity index (CVI) based on geometrical shape. Classic CVIs are based on a combination of separation and compactness measures and may include a measure of overlap between clusters. ...
Surface modification of low-density polyethylene with poly(2-ethyl-2- oxazoline) using a low-pressure plasma treatment
(
Elsevier Ltd
, 2014 , Article)
Low-density polyethylene (LDPE) is a suitable polymer for biomedical applications due to its good physiochemical properties, but its insufficient biocompatibility is often an issue. Therefore, biocompatible substances such ...
Computational Simulation Of Organic Rankine Cycle Retrofitted To Petroleum Well
(
Hamad bin Khalifa University Press (HBKU Press)
, 2014 , Conference Paper)
Geothermal refers to existing heat energy in deep rock and sedimentary basins. Unlike other types of renewable energy resources, geothermal energy provides a stable source of energy as it can be exploited regardless of ...
Self-standing elastomeric composites based on lithium ferrites and their dielectric behavior
(
American Institute of Physics Inc.
, 2014 , Article)
Lithium ferrite (LiFe5O8) is an attractive material for technological applications due to its physical properties, which are significantly dependent on the preparation method and raw materials. In this work, LiFe5O8 ...
Interval estimation of the stress-strength reliability in the two-parameter exponential distribution based on records
(
Taylor and Francis Ltd.
, 2014 , Article)
We consider interval estimation of the stress-strength reliability in the two-parameter exponential distribution based on records. We constructed Bayesian intervals, Bootstrap intervals and intervals using the generalized ...
Edge-Maximal Graphs Without θ2k+1-Graphs
(
Taylor and Francis Ltd.
, 2014 , Article)
Let σ(n; θ2k+1) denote the class of non-bipartite graphs on n vertices having no θ2k+1- graph and f(n; θ2k+1) = max{ ε(G): G ∊ σ (n; θ2k+1)}. In this paper we determine f(n; θ2k+1), by proving that for k ≥ 4 and n ≥ 36k. ...
Seismic detection of a sinkhole using spectral-based analysis
(
Society of Exploration Geophysicists
, 2014 , Conference Paper)
Seismic data recorded during a survey in the vicinity of a sinkhole revealed distinct resonances at 70 Hz. Frequency domain data inversion based on exact modeling produced effective elastic parameters for the location over ...