Modelling stochastic systems has many important applications. Normal form coordinate transforms are a powerful way to untangle interesting long term dynamics from undesirably detailed microscale dynamics. I aim to explore normal forms of stochastic differential equations when the dynamics has both slow modes and quickly decaying modes. The thrust is to derive normal forms useful for macroscopic...

We simulate dynamic ruptures on a strike-slip fault in homogeneous and layered half-spaces and on a thrust fault in a layered half-space. With traditional friction models, sliding friction exceeds 50% of the fault normal compressive stress, and unless the pore pressures approach the lithostatic stress, the rupture characteristics depend strongly on the depth, and sliding generates large amounts...

, . actiristics and constraint alritudes. Conditions which favor significant improvdent are: large thrust reserve at the constraint altitude, reasonably high lift-to-drag ratio, low constraint altitude, and low wing loading. The trajectory optimization algorithm, which is described in some detail, is especially efficient and may be useful in other applications. Wing area Time, (scaled) Thrust, ...

To solve the complex thrust allocation problems of dynamic positioning ship with azimuth thrusters, the quadratic programming thrust allocation and management system was built. The power optimal thrust allocation was formulated as a quadratic programming problem by the linear treatments of inequality constraints and the optimal solution could be found in a finite amount of time. And some influe...

Propeller induced structural vibration through the thrust bearing is an important source for low frequency shipboard noise and underwater sound radiation from a submarine hull. Such vibration is investigated using a scaled experimental model. This research concentrates on the experimental characterization of propeller force, hydrodynamic force of the thrust bearing and vibration transmission th...

van Haaften and White (1998) presented kinematic data from shear zones within the Talga Talga Anticline of the Marble Bar belt to invoke a regional thrust-accretion tectonic origin for the East Pilbara Craton. By examination of small-scale, local faults, they inferred five phases of regional deformation, of which an early ESEdirected thrusting event which reactivated ca. 3450 Ma normal faults, ...

Two faults define structural domains with varying geological and “reservoir” characteristics such as thickness and structural complexity; these are the Yamaska Normal Fault to the North and the Logan line, a thrust feature to the south is mapable at surface (Fig.1) . Talisman has a large acreage in the area and focus its attention on the Utica shale which is more laterally uniform, easier to un...

[1] We document a new model of crustal structure of the Andean front in Argentina where numerous historic earthquakes destroyed the cities of Mendoza in 1861 (Ms = 7) and San Juan in 1944 (Mw = 7.0). The Cerro Salinas anticline is formed above the west directed Cerro Salinas thrust. An east facing monocline with an amplitude of about 2 km folds the Cerro Salinas thrust and overlying Neogene suc...

The patient was an 8-month-old boy who was the product of a full-term and uncomplicated pregnancy. He had a remarkable family history with the presence of the same clinical course in a cousin, who was not clearly diagnosed as having Joubert Syndrome. He had apnea episodes, truncal ataxia, pendular nystagmus and mentalmotor developmental delay. He had a normal vestibuloocular reflex based on hea...

The paper addresses methods of thrust distribution in a propulsion system for an unmanned underwater vehicle. It concentrates on finding an optimal thrust allocation for desired values of forces and moments acting on the vehicle. Special attention is paid to the unconstrained thrust allocation. The proposed methods are developed using a configuration matrix describing the layout of thrusters in...