Weakly constrained codes were introduced for constructing efficient encoding algorithms with low complexities, that is, encoding algorithm which can be implemented with smaller circuits and less memories. In this paper we introduce 2 dimensional (2D) weak constraint codes for 2D storage media and propose some coding rules for 2D weak run-length-limited constraints. Simulation results show that ...

Many biological materials may be considered as cellular materials, for example, soft tissues, but also bones, wood, or foam-like medulla in a bird feather. The cells filled with fluid just air, have different size, shape, and wall thickness. Less is known about how the mechanical morphological parameters of influence their biologically relevant functions. A simple descriptive 2D numerical model...