Numerical Computation of Parametric Induced Roll Motions in Random Seas

Interactive Simulation of Ship Motions in Random Seas based on Real Wave Spectra

The current paper presents a methodology to compute and represent the ship motions at interactive frame rates, when navigating on a virtual sea defined by a real wave spectrum. The Inverse Discrete Fast Fourier Transform algorithm is used to compute the sum of all ship motions components induced by the waves and get the final irregular ship motion. Currently, this is the most efficient method t...

Random Matrix Theory, Numerical Computation and Applications

This paper serves to prove the thesis that a computational trick can open entirely new approaches to theory. We illustrate by describing such random matrix techniques as the stochastic operator approach, the method of ghosts and shadows, and the method of “Riccatti Diffusion/Sturm Sequences,” giving new insights into the deeper mathematics underneath random matrix theory.

A Time-Domain Numerical Study of Passive and Active Anti- Roll Tanks to Reduce Ship Motions

Benchmark Study on Numerical Simulation Methods for the Prediction of Parametric Roll of Ships in Waves

The main results and conclusions of an international benchmark study on the performance of computer simulation codes for the prediction of parametric rolling of ships in waves are presented in this paper. The benchmarked codes have been reviewed on a comparative way with respect to the specified benchmark tests and available experimental data. The study ship, a containership, was investigated i...

the effect of aqueous extract of garlic on formalin-induced pain in male rats

چکیده اثر عصاره آبی سیر بر درد ناشی از آزمون فرمالین در موش صحرایی نر به کوشش نرگس اسکندری روزبهانی زمینه و هدف: گیاه سیر از خانواده لیلیاسه و گونهallium sativum بومی آسیای میانه بوده و از دوران ،باستان تاکنون به خواص درمانی متفاوت آن مثل: کاهندگی قندخون، کلسترول خون، فشار خون، اثرات مفیدآن بر دستگاه قلبی عروقی و بیماریهای انعقادی خون، اثرات آنتی اکسیداتیو، درمان بیماریهای تنفسی وگوارشی، ا...