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View article: Anticoagulation Timing in Acute Stroke With Atrial Fibrillation According to Chronic Kidney Disease: The OPTIMAS Trial
Anticoagulation Timing in Acute Stroke With Atrial Fibrillation According to Chronic Kidney Disease: The OPTIMAS Trial Open
BACKGROUND: Patients with chronic kidney disease (CKD) are at increased risk of ischemic stroke (IS) and intracerebral hemorrhage, so the safety and efficacy of early direct oral anticoagulant (DOAC) initiation in those with CKD are of cli…
View article: Passive Fault-Tolerant Augmented Neural Lyapunov Control: A method to synthesise control functions for marine vehicles affected by actuators faults
Passive Fault-Tolerant Augmented Neural Lyapunov Control: A method to synthesise control functions for marine vehicles affected by actuators faults Open
Closed-loop stability of control systems can be undermined by actuator faults. Redundant actuator sets and Fault-Tolerant Control (FTC) strategies can be exploited to enhance system resiliency to loss of actuator efficiency, complete failu…
View article: MANAGING THE SPREAD OF COVID-19 PANDEMIC IN INDONESIAN SEA TRANSPORTATION
MANAGING THE SPREAD OF COVID-19 PANDEMIC IN INDONESIAN SEA TRANSPORTATION Open
COVID-19 has been pandemic since the early 2020 and many efforts have been carried out worldwide. Among others, managing the spread of pandemic has been focused on air transportation since the mobility of people has been more actively usin…
View article: Advancing digital healthcare engineering for aging ships and offshore structures: an in-depth review and feasibility analysis
Advancing digital healthcare engineering for aging ships and offshore structures: an in-depth review and feasibility analysis Open
Aging ships and offshore structures face harsh environmental and operational conditions in remote areas, leading to age-related damages such as corrosion wastage, fatigue cracking, and mechanical denting. These deteriorations, if left unat…
View article: Solid Rubber Fenders to Prevent Structural Damage in a Lowspeed Collision Between a Ship-Shaped Offshore Installation and a Shuttle Tanker Working Side-by-Side in Offloading Operation
Solid Rubber Fenders to Prevent Structural Damage in a Lowspeed Collision Between a Ship-Shaped Offshore Installation and a Shuttle Tanker Working Side-by-Side in Offloading Operation Open
Ships and ship-shaped offshore installations are commonly equipped with pneumatic or solid rubber fenders to absorb kinetic energy during collisions, thereby reducing structural damage. The energy absorption capacity of these fenders must …
View article: HAPiGYM
HAPiGYM Open
The HAPiGYM is a collection of numerical and experimental modelling environments for testing control of wave energy converters (WECs). It has two applications: rapid prototyping of the control policies themselves, and co-design of control …
View article: Multi wave absorber platform design, modelling and testing
Multi wave absorber platform design, modelling and testing Open
The subject of this paper is the development of physical and numerical models and a tank test programme to investigate the performance of a multi wave energy absorber platform (MWAP). The platform is inspired by the proposed designs for la…
View article: Offshore COVID-19 risk assessment based on a fishing vessel
Offshore COVID-19 risk assessment based on a fishing vessel Open
Offshore crews often work near each other due to limited space, signifying a complex environment for the airborne transmission of the coronavirus (COVID-19). During offshore operations, a fishing vessel can be subjected to miscellaneous ai…
View article: Towards a full-scale CFD guideline for simulating a ship advancing in open water
Towards a full-scale CFD guideline for simulating a ship advancing in open water Open
Computational Fluid Dynamics (CFD) simulations of a ship’s operations are generally conducted at model scale, but the reduced scale changes the fluid behaviour around the ship. Whilst ideally ship simulations should be run directly at full…
View article: Wave slam response of large high-speed catamarans
Wave slam response of large high-speed catamarans Open
The rapid evolution of high-speed sea transportation has led to the development of large, fast, lightweight vessels. The structural design optimisation of such vessels requires knowledge of the effect of sea loads on their structure. Of pa…
View article: Discussion of Committee V.2: Experimental Methods
Discussion of Committee V.2: Experimental Methods Open
Discussion Discussers’ reports and floor discussions, including the replies by the committees, are included in this Volume 3 discussion paper. Committee Mandate Concern for advances in structural model testing and full-scale experimentatio…
View article: A passive flow separation approach for reducing slamming loads on large catamarans: experimental investigation
A passive flow separation approach for reducing slamming loads on large catamarans: experimental investigation Open
This paper reports on experimental and numerical simulations conducted on a high-speed catamaran’s bow section during water entry using both water impact device. The water impact facility allows the water/model interaction to occur at rela…
View article: Fatigue Estimation on a High-Speed Wave Piercing Catamaran During Normal Operations
Fatigue Estimation on a High-Speed Wave Piercing Catamaran During Normal Operations Open
The estimation of fatigue life in the design process is particularly important for weight-optimised ships such as high-speed aluminium craft, but to date no research has been published on the fatigue accumulation on large wave-piercing cat…
View article: New Tools to Generate Realistic Ice Floe Fields for Computational Models
New Tools to Generate Realistic Ice Floe Fields for Computational Models Open
Global warming has extensively transformed Arctic sea ice from continuous level-ice coverage to unconsolidated ice floe fields. Whilst the ice floes have a mixture of different sizes and their locations are randomly distributed, contempora…
View article: Influence of an active T-foil on motions and passenger comfort of a large high-speed wave-piercing catamaran based on sea trials
Influence of an active T-foil on motions and passenger comfort of a large high-speed wave-piercing catamaran based on sea trials Open
T-foil and stern tabs were installed on a wave-piercing catamaran (Incat Tasmania Hull 061) to improve ship motions and passenger comfort. More than 40 total effective hours of sea trials were conducted by the US Navy in 2004, encountering…
View article: Analysis of fire-induced progressive collapse for topside structures of a VLCC-class ship-shaped offshore installation
Analysis of fire-induced progressive collapse for topside structures of a VLCC-class ship-shaped offshore installation Open
This study extends the authors’ previous numerical and experimental studies simulating the progressive collapse of steel stiffened-plate structures in fire events (Paik JK, Ryu MG, He KH, Lee DH, Lee SY, Park DK, Thomas G. 2021a. Full-scal…
View article: THE INFLUENCE OF CENTRE BOW LENGTH ON SLAMMING LOADS AND MOTIONS OF LARGE WAVE-PIERCING CATAMARANS
THE INFLUENCE OF CENTRE BOW LENGTH ON SLAMMING LOADS AND MOTIONS OF LARGE WAVE-PIERCING CATAMARANS Open
The effect of various centre bow lengths on the motions and wave-induced slamming loads on wave-piercing catamarans is investigated. A 2.5 m hydroelastic segmented model was tested with three different centre bow lengths and towed in regul…
View article: SUBCRITICAL WAVE WAKE UNSTEADINESS
SUBCRITICAL WAVE WAKE UNSTEADINESS Open
Vessel wave wake in deep water is well understood, shallow water less so, specifically the effect of restricted water. This operational zone is highly dynamic and non-linear in nature, thus being worthy of closer examination. The paper rev…
View article: HYDRODYNAMIC HULL FORM DESIGN SPACE EXPLORATION OF LARGE MEDIUM-SPEED CATAMARANS USING FULL-SCALE CFD
HYDRODYNAMIC HULL FORM DESIGN SPACE EXPLORATION OF LARGE MEDIUM-SPEED CATAMARANS USING FULL-SCALE CFD Open
Large medium-speed catamarans are a new class of vessel currently under development as fuel-efficient ferries for sustainable fast sea transportation. Appropriate data to derive design guidelines for such vessels are not available and ther…
View article: RESPONSE OF A HIGH-SPEED WAVE-PIERCING CATAMARAN TO AN ACTIVE RIDE CONTROL SYSTEM
RESPONSE OF A HIGH-SPEED WAVE-PIERCING CATAMARAN TO AN ACTIVE RIDE CONTROL SYSTEM Open
Ride control systems on high-seed vessels are an important design features for improving passenger comfort and reducing motion sickness and dynamic structural loads. To investigate the performance of ride control systems a 2.5m catamaran m…
View article: Using Remote Monitoring and Machine Learning to Classify Slam Events of Wave Piercing Catamarans
Using Remote Monitoring and Machine Learning to Classify Slam Events of Wave Piercing Catamarans Open
An onboard monitoring system can measure features such as stress cycles counts and provide warnings due to slamming. Considering current technology trends there is the opportunity of incorporating machine learning methods into monitoring s…
View article: Preliminary Bulbous Bow Design Tool Applying K Nearest Neighbours Classification and Regression Model
Preliminary Bulbous Bow Design Tool Applying K Nearest Neighbours Classification and Regression Model Open
Designing bulbous bows for ships remains a challenging task. Their impact on different design attributes as well as their change in performance when operating off their intended design condition renders this as a multidimensional problem. …
View article: Leader Follower Formation Control for Underwater Transportation Using Multiple Autonomous Underwater Vehicles
Leader Follower Formation Control for Underwater Transportation Using Multiple Autonomous Underwater Vehicles Open
The successful ability to conduct underwater transportation using multiple autonomous underwater vehicles (AUVs) is important for the commercial sector to undertake precise underwater installations on large modules, whilst for the military…