Results 51 to 60 of about 936 (166)
Abstract For about the past 120 years, Apiomorpha crispa (Fuller, 1896) has been considered to be a junior synonym of A. strombylosa (Tepper, 1893). Although some morphological variation among specimens of A. strombylosa has been recognised across its range, geographic separation and different host associations led to coccidologists treating the ...
Chen‐Hsin Fan +5 more
wiley +1 more source
In cases when the navigational space of the manoeuvre performed by the ship is severely limited, the procedures making use of the rudder blade, propeller screw, and thrusters are very complicated.
Tomera Mirosław
doaj +1 more source
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez +2 more
wiley +1 more source
Spring and Power in Hovering Ornithopters
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau +4 more
wiley +1 more source
MATHEMATICAL MODELLING OF THE DYNAMIC RESPONSE, IN SIX DEGREES OF FREEDOM, OF SMALL VESSELS IN A SEAWAY [PDF]
This thesis treats the motion of a small vessel described in six degrees of freedom. There are three are translation equations of motion and the other three are equations of angular motion.
Wallis, Barbara Diana
core +2 more sources
Wave Glider‐Based Measurements and Corrections of Near‐Surface pCO2 Gradients in the Coastal Ocean
Abstract Carbonate system dynamics are highly variable in coastal and shelf regions, and poor spatiotemporal measurement resolution leads to inadequate constraints for global carbon sequestration estimates. Additionally, conventional pCO2 measurement‐based flux calculations require an assumption of homogeneity in near‐surface waters, excluding effects ...
Sean Morgan +6 more
wiley +1 more source
Three-dimensional trajectory tracking of a hybrid autonomous underwater vehicle in the presence of underwater current [PDF]
In this work, a six degrees-of-freedom (DOF) nonlinear kinematic and dynamic model of a Hybrid Autonomous Underwater Vehicle (H-AUV) is derived for the two modes of locomotion, propelled and gliding modes.
Al Makdah, Abed Rahman +3 more
core +1 more source
Migration to Australia, the transition from sail to steam, and the SS Great Britain
Abstract The transition from sail to steam for emigrant ships on the route to Australia took place in the early 1880s. From the 1850s, a string of steamship ventures failed, but with one outstanding exception. Brunel's iconic ship the SS Great Britain made 32 voyages to Australia from 1852 to 1875 with a total of nearly 16,000 passengers. Among the key
Timothy J. Hatton
wiley +1 more source
Dynamic stability and handling qualities tests on a highly augmented, statically unstable airplane [PDF]
Initial envelope clearance and subsequent flight testing of a new, fully augmented airplane with an extremely high degree of static instability can place unusual demands on the flight test approach.
Bosworth, John T., Gera, Joseph
core +1 more source
A Domain Independent Framework for Developing Knowledge Based Computer Generated Forces [PDF]
Computer Generated Forces (CGFs) are important players in Distributed Interactive Simulation (DIS) exercises. A problem with CGFs is that they do not exhibit sufficient human behaviors to make their use effective.
Benslay, James L., Jr.
core +1 more source

