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In this paper, we present a new variational formulation of geometric snake for image segmentation. Our formulation includes an internal energy term that penalizes the deviation of the level set function from a signed distance function and stopping term related to a particular segmentation of the image instead of gradient. They force the level set function(More)
Controlled transfer of orbital angular momentum to an exciton-polariton Bose-Einstein condensate spontaneously created under incoherent, off resonant excitation conditions is a long-standing challenge in the field of microcavity polaritonics. We demonstrate, experimentally and theoretically, a simple and efficient approach to the generation of nontrivial(More)
BACKGROUND To understand the involvement of structural maintenance of chromosome 4 (SMC4) in the development and progression of hepatocellular carcinoma (HCC). METHODS Real-time quantitative PCR and Western Blotting were applied to measure the expression of SMC4 in HCC samples and cell lines. The tumor-promoting effect of SMC4 was determined by WST-1,(More)
hSETD1A is a member of the trithorax (TrxG) family of histone methyltransferases (HMT) that methylate H3K4 at promoters of active genes. Although misregulation of mixed lineage leukemia (MLL) family proteins has been associated with acute leukemia, the role of hSETD1A in cancer remains unknown. In this study, we report that hSETD1A and its associated(More)
There exist generally low fidelity, function insufficiency, deficient effect etc to the existing substation training simulator. We present a novel full-functional virtual simulation training system of substation by means of three-dimension virtual simulation technology, database technology. During the course of realizing numerous training cases, DOF,(More)
High Level Architecture (HLA) conduces to the integration of different models to form a complicated distributed simulation system. However, there exist some limitations in HLA-based simulation application in some aspects. In the paper, aiming at resolving these problems, we focus on the study of introducing Web services in HLA-based simulation application(More)