نتایج جستجو برای: geological factors

تعداد نتایج: 1100462  

Journal: :IJSDIR 2013
Aurete Maria Pereira António Gabriel Luís Pedro Brito Cabral

This work describes the implementation of the INSPIRE Geology data model (INSPIRE GE) for digital geological map production at the Portuguese Laboratory of Energy and Geology (LNEG). The process of harmonising geological mapping data involves the restructuring of the LNEG’s current data model into the extended INSPIRE GE, which aims a more efficient, interoperable and harmonized management data...

2013
J. Tyler Faith Christian A. Tryon Daniel J. Peppe David L. Fox

Aim Within the last several decades, Grévy’s zebra (Equus grevyi) has undergone a massive reduction in geographical range and population size, largely as the result of human impacts. To place its recent decline in a deeper prehistoric context, and to understand the factors mediating its range and abundance over geological time frames, this study examines the fossil history of Grévy’s zebra in e...

Subject analysis of the potential of spontaneous combustion in coal layers with analytical and numerical methods has been always considered as a difficult task because of the complexity of the coal behavior and the number of factors influencing it. Empirical methods, due to accounting for certain and specific factors, have not accuracy and efficiency for all positions. The Rock Engineering Syst...

2013
Jure Kokošin Andrej Gosar

Breginjski kot is among the most endangered seismic zones in Slovenia with the seismic hazard assessed to intensity IX MSK and the design ground acceleration of 0.250 g, both for 500-year return period. The most destructive was the 1976 Friuli Mw = 6.4 earthquake which had maximum intensity VIII-IX. Since the previous microzonation of the area was based solely on the basic geological map and di...

Journal: :Remote Sensing 2016
Yanan Jiang Mingsheng Liao Hanmei Wang Lu Zhang Timo Balz

Many coastal cities have undertaken reclamation projects to satisfy the land demands of rapid urbanization. However, the foundations of reclaimed land are susceptible to settlement and can have undesirable environmental impacts that could adversely affect these dense, populated areas. In the case of international airports built on reclaimed areas especially, regional-scale deformation must be m...

2017
Xinggao Li Dajun Yuan Qingfei Huang

Received: November 30, 2016 Revised: February 13, 2017 Accepted: February 13, 2017 Abstract: Background: Many subway/metro tunnels were constructed using close face shield machines in coarse grain soils in last decades. Configurations of the shield cutterhead and cutting tools are critical in terms of cost and project duration. There are currently no recognized methodologies available for the c...

2010
Caroline Suen David Lo Frank Li

Earthquake prediction has long been the holy grail for seismologists around the world. The various factors affecting earthquakes are far from being understood, and there exist no known correlations between largescale earthquake activity and periodic geological events. Nonetheless, we hope that machine learning will give us greater insight into the patterns underlying earthquake activity, even i...

Journal: :PeerJ PrePrints 2016
Michele Santangelo Ivan Marchesini Francesco Mirabella Francesco Bucci Mauro Cardinali Fausto Guzzetti

Three-dimensional modeling of geological bodies is a useful tool for multiple applications. Such tasks are usually accomplished starting from fieldcollected data, which typically suffer from intrinsic limitations such as accessibility constraints and punctuality of data collected. In this work, we explore the reliability of photo-geological mapping from interpretation of aerial photographs in p...

Journal: :Anais da Academia Brasileira de Ciencias 2014
Ana Catarina A Moura Paulo H S De Oliveira Joaquim M Ferreira Francisco H R Bezerra Reinhardt A Fuck Aderson F Do Nascimento

A sequence of earthquakes occurred in 2008 in the Meruoca granitic pluton, located in the northwestern part of the Borborema Province, NE Brazil. A seismological study defined the seismic activity occurring along the seismically-defined Riacho Fundo fault, a 081° striking, 8 km deep structure. The objective of this study was to analyze the correlation between this seismic activity and geologica...

Journal: :Computers & Geosciences 2009
Nengxiong Xu Hong Tian

The technique of 3D geological modeling (3DGM) is an effective tool for representing complex geological objects. In order to improve the accuracy of geological models applied in numerical simulation methods such as finite elements and finite differences, we can use 3DGM as a modeling tool. To do this, however, 3DGMmust provide the ability to model geological and artificial objects in a unified ...

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