The hexahedral mesh (hex mesh) is usually preferred to the tetrahedral mesh (tet mesh) in finite element methods for numerical simulation. In finite element analysis, a valid hex mesh requires that the scaled Jacobian value at each mesh vertex is larger than 0. However, the hex mesh produced by lots of prevailing hex mesh generation methods cannot be guaranteed to be a valid hex mesh. In this p...

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Channel Assignment (CA) is an active research area due to the proliferating deployments of multiradio multi-channel wireless mesh networks. This paper presents an in-depth survey of some of the CA approaches in the literature. First, the key design issues for these approaches are identified, laying down the basis for discussion. Second, a classification that captures their essentials is propose...

A popular three-dimensional mesh generation scheme is to start with a quadrilateral mesh of the surface of a volume, and then attempt to fill the interior of the volume with hexahedra, so that the hexahedra touch the surface in exactly the given quadrilaterals[24]. Folklore has maintained that there are many quadrilateral meshes for which no such compatible hexahedral mesh exists. In this paper...

Studies of timeliness and outcome in lung cancer care lung neoplasms[MESH] OR lung cancer*[text word] AND time factors[MeSH] OR waiting lists[MeSH] OR delay[text word] OR timeliness[text word]) AND mortality[MeSH Terms] OR survival rate[MESH] OR survival analysis[MESH] OR survival[MeSH Terms] AND 1995/01/01[PDat]: 2007/06/01[PDat] AND Humans[Mesh] AND English[lang] Studies aimed at improving ti...

("Ethics, Clinical"[Mesh] OR "Bioethical Issues"[Mesh] OR "Ethics"[Mesh] OR "Culture"[Mesh] OR ethics[tiab] OR "value system"[All Fields] OR "Cultural Characteristics"[Mesh] OR "Cultural Diversity"[Mesh] OR "Cross-Cultural Comparison"[Mesh]) AND ("Bioterrorism"[Mesh] OR "Terrorism"[Mesh] OR "Disasters"[Mesh] OR disaster[tiab] OR bioterrorism[tiab] OR hurricane[tiab] OR tornado[tiab] OR flood[ti...

Channel Assignment (CA) has emerged as a new research area due to the rising commercial deployments of multi-radio multi-channel wireless mesh networks today. This paper presents an indepth survey of the state-of-the-art CA approaches. Firstly, the key design issues for the CA approaches are identified. Secondly, a classification of the CA approaches that captures their essentials is proposed. ...

this paper introduces a mesh generating algorithm for solving the traffic flow equation as a conservation law equation. the idea behind the new method is to use the characteristic curves and moving non-oscillatory finite volume method. in addition, when characteristic curves intersect, the proposed scheme uses shock speed equation in order to improve computational efficiency. we also compare...