In offshore maritime operations, automated systems capable of maintaining the vessel’s position and heading using its own propellers thrusters to compensate exogenous disturbances, like wind, waves, currents, are referred as marine dynamic positioning (DP) systems. DP play a central role in several such drilling, pipe-laying, coring, ocean observation. These operations primary cause fuel consum...

A Dynamic Positioning (DP) system enables vessels and rigs to accurately maintain a predetermined position heading or track. It precise operations under harsh environmental conditions. DP is used for variety of purposes; however, the role operator (DPO) considered same regardless type operation: monitor keep vessel in position. Some decisions that DPO makes are safety critical, example, about s...

Extended Kalman filter (EKF) plays an important role in the acoustic signal processing of underwater positioning. However, accumulative errors and model inaccuracies lead to divergence. Then, attenuation memory EKF is created response this issue which needs manually select all or part parameters. Thus, a dynamic-weighted proposed. Firstly, several positioning simulations under different conditi...

The DNA of eukaryotic genomes is wrapped in nucleosomes, which strongly distort and occlude the DNA from access to most DNA-binding proteins. An understanding of the mechanisms that control nucleosome positioning along the DNA is thus essential to understanding the binding and action of proteins that carry out essential genetic functions. New genome-wide data on in vivo and in vitro nucleosome ...

Transcription factors canonically bind nucleosome-free DNA, making the positioning of nucleosomes within regulatory regions crucial to the regulation of gene expression. Using the assay of transposase accessible chromatin (ATAC-seq), we observe a highly structured pattern of DNA fragment lengths and positions around nucleosomes in Saccharomyces cerevisiae, and use this distinctive two-dimension...

Recently, three-dimensional (3-D) vision applications play an important role in industry and entertainment. Among these applications, interactivity and scene reality are the two key features affecting the 3-D vision performance. Depending on the nature of the applications, the interactivity with the users (or the players) can be regarded as an important need, for example, in the applications of...