Low-frequency reflection seismic and direct hydrocarbon indication

ABSTRACT This paper presents different forms of Fast Active Power Injection (FAPI) control schemes for the analysis and development of different mitigation measures to

Keywords— Fast active power injection/absorption, frequency control, frequency response indicators, low inertia,

The objectives of the trial were to study impacts of military low frequency - (LFAS 1-2 kHz) and mid frequency - (MFAS 6-7 kHz) active sonars on killer whales and herring. In

Approved for public release. The numerical models incorporate both loss from the bottom, due to the sound interaction with the seafloor, and loss at the open ocean boundaries

The code can handle height varying sound speed, and range variation in impedance. Range- varying sound speed profiles only requires a simple extension. In order to make it easy

Negligible attenuation was observed in previous low-frequency ocean acoustic waveguide remote sensing (OAWRS) experiments because the sensing frequency was sufficiently far from

This paper investigates the impacts of power control loop and reactive power injection on dq impedance model and low-frequency stability of OWPPs, and presents a low-

The authors (Aksnes et al.) compare time domain simulations with model test data and show that predictions based on linear potential flow wave drift coefficients underestimate