Results 221 to 230 of about 830,301 (276)

Trends in Mortality After the Roll-Out of Directly Acting Antivirals for Hepatitis C in England Using Linked Surveillance Data. [PDF]

J Viral Hepat
Etoori D, Simmons R, Powell A, Desai M, Trembling P, Sabin C, Rosenberg W.   +6 more
europepmc   +1 more source

Masticatory Muscle Function in Growing Patients with Unilateral Posterior Crossbite: A Case-Control Study Combining Surface Electromyography and Myotonometry. [PDF]

Dent J (Basel)
Díaz-González L, López-de-Celis C, Pérez-Bellmunt A, Guinot F.   +3 more
europepmc   +1 more source

Comprehensive experimental study on the key performance of a semi-submersible aquaculture cage. [PDF]

iScience
Kong W, Wang Z, Yang S, Yang R, Zhou C, Ding W, Chen M, Yang X, Wang K, Wang L.   +9 more
europepmc   +1 more source

Reinforcement learning for UAV flight controls: Evaluating continuous space reinforcement learning algorithms for fixed-wing UAVs. [PDF]

PLoS One
Khanzada HR, Maqsood A, Basit A.
europepmc   +1 more source

Trimaran Vessels and Parametric Roll

, 2011
Parametric roll can occur in case of trimaran vessels, in particular when the outriggers have limited draught and/or limited transversal separation. Due to the significant nonlinearities of the restoring moment and due to the often complex shape of the metacentric height in waves for this type of ships, parametric roll clearly shows quite peculiar ...
BULIAN, GABRIELE, FRANCESCUTTO, ALBERTO
openaire   +3 more sources

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Sensitivity in numerical analysis of parametric roll

Ocean Engineering, 2013
This study considers a numerical simulation of parametric roll, which causes serious safety issues for ships. The numerical simulation is carried out in regular waves and irregular waves for two container ships. In regular waves, parametric roll motion is simulated using two different time-domain methods: the impulse-response-function method and the 3D
Yonghwan Kim, Dong-Min Park
exaly   +2 more sources

Experience from Parametric Rolling of Ships

, 2011
This chapter reviews three recent full-scale events with parametric rolling for Ro–Ro Large Car and Truck Carriers (LCTC). The events represent three principally different modes of parametric rolling: principal parametric resonance where the period of encounter is half of the roll natural period in following seas (I) and in head seas (II), and ...
Anders Rosén, Mikael Huss, Mikael Palmquist   +2 more
openaire   +2 more sources

Parametric Rolling Simulations of Container Ships

Volume 9: Odd M. Faltinsen Honoring Symposium on Marine Hydrodynamics, 2013
A hybrid nonlinear time domain seakeeping analysis is applied to the study of a container ship advancing at different headings and encounter frequencies. A time-domain nonlinear strip theory in six degrees-of-freedom has been extended to predict ship motions by solving the unsteady hydrodynamic problem in the frequency domain and the equations of ...
Turk, Anton, Prpić-Oršić, Jasna, Guedes Soares, Carlos   +2 more
openaire   +3 more sources

Detuning of parametric roll condition in ships

, 2012
Parametric roll is one of the research topics in the maritime industry. Due to longitudinal waves, this phenomenon will cause explosive increase in a ships roll motion. This large roll oscillations may lead to dangerous situations for the ship, cargo, crew and passengers. It can even lead to capsizing of the ship and results in damages into millions of
de Wit, J., Nijmeijer, H., Pena Ramirez, J.   +2 more
openaire   +2 more sources

Parametric roll mitigation using rudder control

Journal of Marine Science and Technology, 2013
Severe roll angles can be developed by parametric excitation in relatively moderate weather without any apparent pre-warning for the crew onboard. In this study the prospect of using rudder control to mitigate parametric roll was investigated using multi-
Anders Rosen, Carl-Johan Soder, Jakob Kuttenkeuler   +2 more
exaly   +2 more sources