Results 51 to 60 of about 27,265,132 (376)
The ACS Virgo Cluster Survey. XIV. Analysis of Color-Magnitude Relations in Globular Cluster Systems [PDF]
, 2006 We examine the correlation between globular cluster (GC) color and magnitude using HST/ACS imaging for a sample of 79 early-type galaxies (-21 ...
Andres Jordan +15 more
core +2 more sources
Classifying Smart Personal Assistants: An Empirical Cluster Analysis
Hawaii International Conference on System Sciences, 2019 The digital age has yielded systems that increasingly reduce the complexity of our everyday lives. As such, smart personal assistants such as Amazon’s Alexa or Apple’s Siri combine the comfort of intuitive natural language interaction with the utility of
Robin Knote +3 more
semanticscholar +1 more source
, 2006 Using a subsample of 79 nearby clusters from the RASS-SDSS galaxy cluster catalogue of Popesso et al. (2005a), we perform a regression analysis between the cluster integrated star formation rate (Sigma_SFR) the cluster total stellar mass (M_star), the ...
A. Biviano +5 more
core +3 more sources
Neighborhood Graphs, Stripes and Shadow Plots for Cluster Visualization [PDF]
, 2009 Centroid-based partitioning cluster analysis is a popular method for segmenting data into more homogeneous subgroups. Visualization can help tremendously to understand the positions of these subgroups relative to each other in higher dimensional ...
Leisch, Friedrich
core +1 more source
A robust method for cluster analysis
, 2005 Let there be given a contaminated list of n R^d-valued observations coming from g different, normally distributed populations with a common covariance matrix.
Gallegos, Maria Teresa, Ritter, Gunter
core +1 more source
A kinetic model and scaling properties for non-equilibrium clustering of self-propelled particles [PDF]
, 2013 We demonstrate that the clustering statistics and the corresponding phase transition to non-equilibrium clustering found in many experiments and simulation studies with self-propelled particles (SPPs) with alignment can be obtained from a simple kinetic ...
Baer, Markus, Peruani, Fernando
core +4 more sources
Cluster Analysis of Regional Competitiveness in the European Union and the Role of ICT
Romanian Economic Journal, 2021 This article represents an empirical research on the competitiveness of the European Union Member Countries. The main objective is to analyze the level of competitiveness of these countries, focusing on the situation of the new non-Eurozone member ...
Marta-Christina Suciu, Adrian Petre
doaj +1 more source
Carbon-tax implementation in Indonesia: a social accounting matrix analysis
Sustainability: Science, Practice, & PolicyAs the adverse effects of climate change intensify, numerous countries are making several efforts to reduce their carbon-dioxide (CO2) emissions. One of the widely adopted strategies is the implementation of a carbon tax.
Luthfiana Rahma +2 more
doaj +1 more source
Metallicity in the Galactic Center: The Arches cluster
, 2004 We present a quantitative spectral analysis of five very massive stars in the Arches cluster, located near the Galactic center, to determine stellar parameters, stellar wind properties and, most importantly, metallicity content.
Charbonnel C. +15 more
core +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source