Results 21 to 30 of about 49,516 (286)

ANOMALOUS ERRORS IN DETERMINING FOCUS COORDINATES EARTHQUAKES AND SUGGESTIONS FOR THEIR ELIMINATION

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives The aim of the study is to develop a method for estimating the speed of seismic waves in different directions of propagation and by taking into account the dimensions of the focus, reducing the error in determining the coordinates of the ...
G. K. Aslanov   +2 more
doaj   +1 more source

Virtual Scenarios of Earthquake Early Warning to Disaster Management in Smart Cities Based on Auxiliary Classifier Generative Adversarial Networks

open access: yesSensors, 2023
Effective response strategies to earthquake disasters are crucial for disaster management in smart cities. However, in regions where earthquakes do not occur frequently, model construction may be difficult due to a lack of training data.
Jae-Kwang Ahn   +3 more
doaj   +1 more source

Huddle test measurement of a near Johnson noise limited geophone [PDF]

open access: yes, 2017
In this paper, the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests.
Balik G.   +17 more
core   +3 more sources

ANALYSIS OF ERROR DISTRIBUTION DENSITY IN DETERMINING THE COORDINATES OF EARTHING EARTH IN THE METHODS OF SPHERES AND ELLIPSOIDS

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives The purpose of the study is to obtain an expression for determining the coordinates of the earthquake focus using the ellipsoid method, as well as testing the possibility of using the method using the figures of the second order of the ...
T. G. Aslanov, U. A. Musaeva
doaj   +1 more source

DETERMINATION OF EARTHQUAKE FOCUS COORDINATES USING THE CASSINI OVAL METHOD WITH SECOND- AND FOURTH-ORDER HYPERBOLA FIGURES

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2020
Objectives. To study the dependencies obtained when determining the coordinates of an earthquake hypocentre using the figures of fourth and second orders.Method.
B. I. Shakhtarin   +2 more
doaj   +1 more source

Optimal Experiments With Seismic Sensors [PDF]

open access: yes2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
In this paper, we consider the problem of detecting and locating buried land mines and subsurface objects by using seismic waves. We demonstrate an adaptive seismic system that maneuvers an array of receivers, according to an optimal positioning algorithm based on the theory of optimal experiments, to minimize the number of distinct measurements to ...
M. Alam, V. Cevher, J.H. McClellan
openaire   +1 more source

A Natural Seismic Isolating System: The Buried Mangrove Effects [PDF]

open access: yes, 2011
The Belleplaine test site, located in the island of Guadeloupe (French Lesser Antilles) includes a three-accelerometer vertical array, designed for liquefac- tion studies.
Foray, Pierre   +4 more
core   +5 more sources

Improving the sensitivity of future GW observatories in the 1-10 Hz band: Newtonian and seismic noise [PDF]

open access: yes, 2010
The next generation gravitational wave interferometric detectors will likely be underground detectors to extend the GW detection frequency band to frequencies below the Newtonian noise limit.
A. Stochino   +25 more
core   +6 more sources

Assessment of dynamic and long-term performance of an innovative multi-story timber building via structural monitoring and dynamic testing [PDF]

open access: yes, 2012
Peer ...
Desgeorges, Yohann   +5 more
core   +1 more source

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