... scallop formation experimental investigation average temperature ice block interface rectangular ice block flume experiment rectangular block thermocouple temperature profile iceberg ice surface mechanism ice sample ice scallop ABSTRACT Floating glacial ice features...

... performance penetration force strain column deep sea mechanism element model deformation hydrostatic pressure sediment ABSTRACT Deep sea cone penetration testing has played an increasingly important role in marine engineering geological survey. In view of the harsh and complex environment...

... and the free surface leads to vortex breakdown that over-shadows the multiple pairing mechanisms observed in open-water conditions. INTRODUCTION The structure of propeller wakes received great attention in the past (Kerwin, 1986) and in recent years (Felli et al., 2011; Muscari et al., 2013; Di Mascio et...

... ABSTRACT A conceptual framework is presented in this paper to assess the fatigue life of pipelines which are used for pure hydrogen transport based on the state of the art of recent research and development work related to interaction effect of hydrogen and fatigue mechanisms. Mechanisms...

... propagation in a finite length metamaterial lattice is simulated numerically. The mechanism of vibration suppression of the metamaterial lattice is demonstrated from the perspective of the effective parameters, which provides guidance for engineering application of acoustic metamaterial in low-frequency...

.... Analysis and practice show that in the outflow of the high-pressure area, a low-pressure area is created because of the inertial effect, which may cause cavitation bubbles in the fluid. This paper explains the mechanism of generating cavitation by an opened hole on ship bottom, and proposes methods...

... ABSTRACT The current study focuses on the application of the nonlinear negative stiffness mechanism to a Salter's duck, which is a well-known wave energy conversion (WEC) device known for its efficiency of 90% in 2D regular waves. Despite the proven efficiency of WEC devices, they face...

... mechanism. The new model will be validated with the wave flume tests. Based on the coupling model, a new criterion of liquefaction is proposed to include both oscillatory and residual mechanisms. Numerical examples demonstrate the significant impact of coupling effects on the wave-induced seabed...

... for design and potential re-purposing of offshore pipelines for H 2 transport. This paper gives a status summary of the guideline work in the JIP and presents results from mechanical testing performed in Phase 1 of the JIP. INTRODUCTION Hydrogen is assumed to be an important part of tomorrow's energy...

... test, the CO effect was significantly less for the SUS430 ferritic stainless steel (16.17% Cr) compared to that for the A333 carbon steel (0.03% Cr). The mechanism that Cr reduced the CO mitigation effect was considered by DFT calculations of the interaction of CO with the steel surface. It revealed...

... can rotate fast to realize rapid direction change. An attitude regulation mechanism is used to ensure attitude stability and a buoyancy adjustment mechanism is designed to enable the vehicle to dive and ascend with low energy consumption. Finally, the excellent turning performance of the SUV is proved...

... artificial intelligence expert system machine learning node algorithm auv underwater high-speed unmanned craft subsystem node function self-propelled model underwater vehicle actual output fault diagnosis emergency system operation mechanism high-speed unmanned vehicle emergency system...

... ABSTRACT A deep sea electro-mechanic mounted on an underwater pipeline monitoring robot is presented and a suitable docking method is designed for the carrier underwater robot. Improvements are made to the motor of the waterproof joint of the robot. The size and weight of the motor...

... with the hover-height and navigation speed were finally established. And the key mechanism of the high-pressure sub-ice air cavity was found, which formed by the high-pressure air flow from the bottom of the skirt. This study provides necessary basic data for designing and safety operating of ice-breaking air...

... ABSTRACT The steering and reversing gear is the main component of the water-jet propulsion which can embody the superiority of the manipulation of the water-jet propulsion ship. However, it is difficult to get an accurate input for mechanism structure optimization and hydraulic system design...

..., if rubbish is sucked, the resistance performance is just worse, which is a major disadvantage of the ducted propeller. propeller instability characteristic vortex structure efficiency ducted propeller vortex wake instability mechanism thrust coefficient vortice tip vortex engineering...

... wind turbine real time system sustainability artificial intelligence substructure social responsibility wind energy offshore wind turbine real-time hybrid model test transmission aerodynamic load numerical substructure mechanism controller calculation engineering information...

... ABSTRACT Underwater gliders are becoming popular in ocean exploration. However, the main development limitation of underwater gliders is still around energy. This paper proposes a new-type energy harvesting mechanism and explores its design methodology for the gliders using thermal buoyancy...

... a significant role in the probability of failure, limiting the use of the RBI methodology. INTRODUCTION During the operational life of the pipes used in oil and gas offshore exploration, different failure mechanisms may arise, including degradation by corrosion. High inspection costs make it difficult...

....,2007) and coastal regions (Chien et al.,2002). Due to the great threat to human security and ocean infrastructure, the physical mechanisms of extremely large water waves have been studied extensively. Numerous studies have shown that the occurrence of extreme wave maybe relate to wave energy focusing...