نتایج جستجو برای: vessel simulation
تعداد نتایج: 641712 فیلتر نتایج به سال:
In this paper, a 9 degree of freedom seaweed harvester dynamical model is presented. The model presented describes the coupled dynamics of a vessel and a harvesting device, lifted by a winch, subject to sea waves disturbances. In order to find an appropriate harvesting path, which minimizes the harvester motions, the model response is simulated for different encounter angles. This 9 DOF seaweed...
Collision avoidance is one of the high‐level safety objectives and requires a complete and reliable description of maritime traffic situation. A combined use of data provided by independent data sources is an approach to improve the accuracy and integrity of traffic situation related information. In this paper we study the usage of radar images for automatic identification system (AIS) ...
The high-quality imaging of vascular networks in biological tissue is significant to accurate cancer diagnosis with acoustic-resolution-based photoacoustic microscopy (AR-PAM). So far, many new back-projection (BP) models have been proposed improve the image quality AR-PAM off-focal regions. However, essential arguments are still open regarding effectiveness these methods. To settle remaining q...
PURPOSE To present a HOmologous Black-Bright-blood and flexible Interleaved imaging (HOBBI) sequence for dynamic contrast-enhanced magnetic resonance imaging (MRI) of the vessel wall. THEORY AND METHODS A HOBBI sequence is proposed to acquire high-spatial-resolution black-blood and high-temporal-resolution bright-blood dynamic contrast-enhanced images in an interleaved fashion. Black-blood im...
Remodeling of microvascular networks in mammals is critical for physiological adaptations and therapeutic revascularization. Cellular behaviors such as proliferation, differentiation, and migration are coordinated in these remodeling events via combinations of biochemical and biomechanical signals. We developed a cellular automata (CA) computational simulation that integrates epigenetic stimuli...
The recently concluded OECD SETH project included experiments on basic flows and gas transport and mixing driven by jets and plumes in the multi-compartment geometry (two large, connected vessels) of the PANDA facility, which have been simulated with the advanced containment code GOTHIC. The two experiments considered here featured injection of saturated steam in one vessel and venting from the...
The azimuth thruster is mainly installed on a vessel that requires dynamic positioning (DP) function for special purposes. When the operates DP, thrust loss induced by thruster-hull interaction. This study examined influence of boundary conditions in numerical simulations predicting loss. Wind turbine installation vessels (WTIV) and floating production storage offloading (FPSO) were chosen as t...
In this paper, the large amplitude nonlinear rolling motion and capsizing behavior of an offshore supply vessel hull-form is analyzed. In order to investigate the importance of damping, a dynamical perturbation technique (Vishnubhotla, Falzarano and Vakakis, 1998) is applied to the hull using various approximations to the roll damping. The offshore supply vessel (OSV) is probably one of the mos...
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