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SeaBird Exploration (OSE: SBX) is a global provider of marine 2D and 3D seismic data and associated products and services to the oil and gas industry. The Company is listed on the Oslo Stock Exchange with headquarters in Cyprus.
hybrid control devices have combined features of active and passive control systems. [2] When ground seismic waves reach up and start to penetrate a base of a building, their energy flow density, due to reflections, reduces dramatically: usually, up to 90%. However, the remaining portions of the incident waves during a major earthquake still ...
Seismic vibration control is a set of technical means aimed to mitigate seismic impacts in building and non-building structures. All seismic vibration control devices may be classified as passive, active or hybrid [20] where: passive control devices have no feedback capability between them, structural elements and the ground;
Pages in category "Seismic vibration control" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. B.
Seismic base isolation, also known as base isolation, [3] or base isolation system, [4] is one of the most popular means of protecting a structure against earthquake forces. [5] It is a collection of structural elements which should substantially decouple a superstructure from its substructure that is in turn resting on the shaking ground, thus ...
DMT Seismic vibrators during a 3D exploration in Austrian alpine foothills World largest seismic vibrator Nomad 90 during a vibration Principle of operation of a seismic vibrator shaker A seismic vibrator is a truck-mounted or buggy-mounted device that is capable of injecting low-frequency vibrations into the earth.
Research on the origin of seismic noise [1] indicates that the low frequency part of the spectrum (below 1 Hz) is principally due to natural causes, chiefly ocean waves.In particular the globally observed peak between 0.1 and 0.3 Hz is clearly associated with the interaction of water waves of nearly equal frequencies but probating in opposing directions.
Bottom simulating reflectors (BSRs) are, on seismic reflection profiles, shallow seismic reflection events, characterized by their reflection geometry similar to seafloor bathymetry. [1]. They have, however, the opposite reflection polarity to the seabed reflection, [1] and frequently intersect the primary reflections. [2]