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This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Pennsylvania's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for… (More)

Avalanche dynamics is an indispensable feature of complex systems. Here, we study the self-organized critical dynamics of avalanches on scale-free networks with degree exponent through the Bak–Tang–Wiesenfeld (BTW) sandpile model. The threshold height of a node i is set as k 1−Á i with 0 6 Á ¡ 1, where ki is the degree of node i. Using the branching process… (More)

In scale-free networks, the degree distribution follows a power law with the exponent. Many model networks exist which reproduce the scale-free nature of the real-world networks. In most of these models, the value of is continuously tunable, thus is not universal. We study a problem of data packet transport in scale-free networks and deÿne load at each… (More)

- T. Gaugler, D. Kim, S. Liao
- Communications in Statistics - Simulation and…
- 2007

In survival analysis, it is often of interest to test whether or not two survival time distributions are equal, specically in the prescence of censored data. One very popular test statistic utilized in this testing procedure is the weighted logrank statistic. Much attention has been focused on nding exible weight functions to use within the weighted logrank… (More)

- K. Kim, H. Hwu, +5 authors Y. C. Park
- Journal of Korean medical science
- 2001

In this transcultural study of schizophrenic delusions among patients in Seoul, Shanghai and Taipei, we discovered that both the frequency and content of delusions differed among the three groups; and that these differences could perhaps be explained by varying sociocultural and political situations. Delusional themes that are sensitive to sociocultural or… (More)

- D. Kim, John Burge, Terran Lane, Godfrey D. Pearlson, Kent A. Kiehl, Vince D. Calhoun
- NeuroImage
- 2008

We utilized a discrete dynamic Bayesian network (dDBN) approach (Burge, J., Lane, T., Link, H., Qiu, S., Clark, V.P., 2007. Discrete dynamic Bayesian network analysis of fMRI data. Hum Brain Mapp.) to determine differences in brain regions between patients with schizophrenia and healthy controls on a measure of effective connectivity, termed the approximate… (More)

We investigate a problem of data packet transport between a pair of vertices on scale-free networks without loops or with a small number of loops. By introducing load of a vertex as accumulated sum of a fraction of data packets traveling along the shortest pathways between every pair of vertices, it is found that the load distribution follows a power law… (More)

- D.A. Bemben, P. Sharma-Ghimire, Z. Chen, E. Kim, D. Kim, M.G. Bemben
- Journal of musculoskeletal & neuronal…
- 2015

OBJECTIVE
We investigated acute bone turnover marker (BTM) responses to high-intensity resistance exercise with and without whole-body vibration (WBV) in young men (n=10).
METHODS
In this randomized crossover study, subjects performed 2 protocols separated by 2-week wash out periods: 1) resistance exercise only (RE) (3 sets 10 repetitions 80% 1RM for 9… (More)

We study the traffic flow on a highway with ramps through numerical simulations of a hydrodynamic traffic flow model. It is found that the presence of the external vehicle flux through ramps generates a new state of " recurring humps " (RH). This novel dynamic state is characterized by temporal oscillations of the vehicle density and velocity which are… (More)

We investigate the avalanche dynamics of the Bak-Tang-Wiesenfeld (BTW) sandpile model on complex networks with general degree distributions. With the threshold height of each node given as its degree in the model, self-organized criticality emerges such that the avalanche size and the duration distribution follow power laws with exponents τ and δ,… (More)