equation migration (WEM) Velocity modelling Full Waveform Inversion (FWI) Tomography Imaging http://www.iongeo.com/Products_Services/Data_Processing/Advanced_Imaging/Waveform_Inversion/ (http://sepwww.stanford.edu/sep/biondo/3DSI_frame.html) Seismic imaging algorithms can be divided in two broad categories: integral methods (e.g. Kirchhoff methods) and wavefield-continuation methods Technique Details Wave-Equation Migration (WEM) / wavefield extrapolation migration (WEM) Kirchhoff
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The Journal of Socio-Economics 41 (2012) 391–399 Contents lists available at SciVerse ScienceDirect The Journal of Socio-Economics journal homepage: www.elsevier.com/locate/soceco Determinants of willingness to pay for coastal zone quality improvement George Halkos a‚∗ ‚ Steriani Matsiori b a b University of Thessaly‚ Department of Economics‚ Korai 43‚ Volos 38333‚ Greece University of Thessaly‚ Department of Ichthyology and Aquatic Environment‚ School of Agricultural Sciences‚ Fytoko
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Seismic waves‚ which are waves of energy that travel through the earth‚ and are a result of an earthquake‚ explosion‚ or a volcano that imparts low-frequency acoustic energy. There are two types of seismic waves‚ Body waves and surface waves. Body waves travel through the interior of the earth. Surface waves travel along the earth’s surface and through water. Seismic wave fields are measured by a seismograph‚ geophone‚ hydrophone or accelerometer. These are used to measure earthquakes. When
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Seismic hazards have many different impacts around the world. An earthquake took place in Haiti 2010 and it was measured 7 on the Richter scale. The main hazard was the seismic waves caused by shifting rocks in an earthquake. There are two main types of waves‚ P waves and S waves. P waves travel through solids and liquids around 6-7 km/h and parallel through the rocks. S ways travel side ways at 2.5-4km/h and can only get through solids. Both waves can have a big impact on the community‚ a lot of
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a deaf child‚ as a hearing parent. One major decision on a parent’s plate for their deaf child is the choice of a residential or oral school to enroll their child in. Even though the students will be less exposed to deaf culture‚ parents of deaf children should send their kids to an oral school because they graduate with a higher reading level than kids who graduate from a residential school and learning how to assimilate with the majority of the population could help further their experience in
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Chapter 1: Introduction to Seismic Vulnerability Assessment 1. Background Earthquakes and other natural hazards can create disasters of uncontrollable magnitudes when they hit large metropolitan areas. Earthquake risk assessment is used to quantify potential social and economic losses from earthquakes. Risk assessment is an integral part of disaster mitigation. It provides the critical information about on the characteristics of potential disasters in a region and allows planners to identify
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R1. Whether Your Child Belong To Training Program for Residential Or Non-Residential? Totally‚ 67 percent of overall respondents are eligible for the residential program and 33 percent of overall respondents are eligible for the non-residential program. Among these eligible respondents of the residential program‚ 69 percent of candidates are male and 63 percent of candidates are female. The candidates of the residential program include current candidates of 74 percent‚ in-training drop-out candidates
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2011). This response will explore Vygotsky’s concepts of co-construction‚ zone of proximal development‚ transfer of cognitive tools‚ and internalisation. According to the sociocultural lens of Vygotsky‚ ‘children not only develop‚ but are developed (by others)’ (Eun‚ 2010‚ p.402). Thus‚ a positive classroom environment‚ with secure relationships between teachers and students‚ is fundamental in nurturing
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Earthquakes and Seismic Waves Earthquake-is violent shaking of Earth’s crust Focus-exact point within the crust where the fist movement occurs Epicenter-point on Earth’s crust directly above the focus Types of Seismic Waves P Wave Primary-1st Fastest Accordion-in and out S Wave Secondary Snake-like Can’t travel through liquid Surface Wave-roll through the top of the crust creating the most damage Measuring Earthquakes Mercalli scale -measures damage The Richter
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the moving blocks finally overcomes the friction of the jagged edges of the fault and it unsticks‚ all that stored up energy is released. The energy radiates outward from the fault in all directions in the form of seismic waves like ripples on a pond but much more violent. The seismic waves shake the earth as they move through it‚ and when the waves reach the earth’s surface‚ they shake the ground and anything on it‚ like our houses and workplaces. The tool that scientists use to record
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