Results 301 to 310 of about 2,657,458 (337)
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Clusters and Cluster Reactions
1996Atomic clusters [1,2] constitute a new class of matter intermediate between atoms/molecules and solids. Clusters of any elements can be produced by initially vaporizing [3] the target through an intense laser and allowing the plume to cool in a supersonic expansion chamber.
Puru Jena, Shiv N. Khanna, B. K. Rao
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Intrinsic anisotropy of clusters in cluster-cluster aggregation
Journal of Physics A: Mathematical and General, 1986The anisotropy ratio between the largest and the smallest eigenvalues of the radius of gyration tensor Rij2 has been analytically investigated and numerically estimated for three different cluster-cluster aggregation processes. This ratio is of the order of 4.5 for a two-dimensional projection of a three-dimensional cluster grown by cluster-cluster ...
R Jullien, R Botet
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To Cluster or Not to Cluster: A Hybrid Clustering Protocol for WSN
2019 IEEE Jordan International Joint Conference on Electrical Engineering and Information Technology (JEEIT), 2019Clustering protocols in wireless sensors networks (WSN) have dominated as a tailored routing protocols to harvest and route data from sensorsS nodes to the sink station. A lot of clustering protocols have been proposed in the literature. However, does clustering algorithms work correctly in all cases? In other words, is it necessary for the nodes to be
Yousef Jaradat +3 more
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Cluster headache and cluster variants
Current Treatment Options in Neurology, 2003Patients must be cognizant of the time course of the cluster headache periods to optimally tailor their therapy. Steroids provide the fastest onset of prophylactic effect. Once steroids are initiated, it remains difficult to wean patients off of them, and that is why it is always recommended to associate another prophylactic agent from the onset with ...
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Dynamic cluster-size distribution in cluster-cluster aggregation: Effects of cluster diffusivity
Physical Review B, 1985The dynamics of the diffusion-limited model of cluster-cluster aggregation is investigated in two and three dimensions by studying the temporal evolution of the cluster-size distribution ${n}_{s}$(t), which is the number of clusters of size s at time t.
Paul Meakin +2 more
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To Cluster or Not Cluster, That is the Question
The American Journal of Geriatric Psychiatry, 2022Roy, Adams, Paul, Rosenberg
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1996
Various approaches to comparing subsets are discussed. Two approaches to direct single cluster clustering are described: seriation and moving center separation, which are reinterpreted as locally optimal algorithms for particular (mainly approximational) criteria.
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Various approaches to comparing subsets are discussed. Two approaches to direct single cluster clustering are described: seriation and moving center separation, which are reinterpreted as locally optimal algorithms for particular (mainly approximational) criteria.
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CLUSTERS AND CLUSTERS OF CLUSTERS IN COLLISIONS
Photonic, Electronic and Atomic Collisions, 2006Virgile Bernigaud +18 more
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Advances and Open Problems in Federated Learning
Foundations and Trends in Machine Learning, 2021Han Yu, Ana Cecilia Boetto
exaly
Clusteranalysen (CLUSTER, QUICK CLUSTER)
1992Eine Clusteranalyse wird mit dem Ziel durchgefuhrt, samtliche Cases derart in Gruppen (Cluster) einzuteilen, das die resultierenden Gruppen im Hinblick auf bestimmte Merkmale in sich moglichst homogen und untereinander moglichst heterogen sind.
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