Introduction: Hemangiomas are the most frequent benign tumors of the liver and detecting them from metastasis or other malignant hepatic tumors is of outmost importance. 99mTc- RBC scan is highly specific and is the method of choice for this differentiation. This scintigraphy is performed in Planar and SPECT modes. These two procedures are in agreement most of the times, however since SPE...

Numerical models of earthquake rupture are used to investigate characteristic length scales and size distributions of repeated earthquakes on vertical, planar fault segments. The models are based on exact solutions of static three-dimensional (3-D) elasticity. Dynamical rupture is approximated by allowing the static stress field to expand from slip motions at a single velocity. To show how the ...

We study the ground motion simulations based on three finite-source models for the 2007 Mw6.6 Niigata Chuetsu-oki, Japan, earthquake in order to discuss the performance of the input ground motion estimations for the near-field seismic hazard analysis. The three models include a kinematic source inverted from the regional accelerations, a dynamic source on a planar fault with three asperities in...

We study the coverage problem from the fault tolerance point of view for sensor networks. Fault tolerance is a critical issue for sensors deployed in places where they are not easily replaceable, repairable and rechargeable. The failure of one node should not incapacitate the entire network. We propose three 1-fault tolerant models, and we compare them to each other, as well as with the minimal...

a wind turbine transformer (wtt) is designed using a 3d wound core while the transformer’s total owning cost (toc) and its inrush current performance realized as the two objective functions in a multi-objective optimization process. multi-objective genetic algorithm is utilized to derive pareto optimal solutions. the effects of inrush current improvement on other operating and design parameters...

Large earthquakes are usually modeled with simple planar fault surfaces or a combination of several segments. However, in general, occur on faults that non-planar and exhibit significant geometrical variations both the along-strike down-dip directions at all spatial scales. Mapping surface ruptures high-resolution geodetic observations increasingly revealing complex geometries near accurate loc...

Design diversity between redundant channels is a way of improving the dependability of software-based systems, but it does not alleviate the difficulties of dependability assessment. Assuming failure independence between channels is unrealistic. Using statistical evidence from realistic testing, standard inference procedures can estimate system reliability, but they take no advantage of a syste...

The southernmost ∼100 km of the San Andreas fault has not ruptured historically. It is imperative to determine its rupture history to better predict its future behavior. This paleoseismic investigation in Coachella, California, establishes a chronology of at least five and up to seven major earthquakes during the past ∼1100 yr. This chronology yields a range of average recurrence intervals betw...