Construction of rational models for topographic effects and size-conditioned-response-spectra

2021 ◽  
Vol 140 ◽  
pp. 106432
Author(s):  
Juan Vergara ◽  
César Sierra ◽  
Mario Sáenz ◽  
Juan Jaramillo ◽  
Juan Gomez
2019 ◽  
Vol 10 (04) ◽  
pp. 1850011 ◽  
Author(s):  
Mohammad Katebi ◽  
Behrouz Gatmiri ◽  
Pooneh Maghoul

This paper investigates topographic effects of rocky valleys with irregular topographic conditions subjected to vertically propagating SV waves of Ricker type using a boundary element code. Valleys with two intersecting slopes, [Formula: see text] and [Formula: see text], are modelled in order to study their combined effects on ground motion. Presented in the form of pseudo-acceleration response spectra, results of this work can be extended to similar topographies. The main findings are: (i) [Formula: see text] (the first slope angle) and [Formula: see text] (L is the half width of the valley and [Formula: see text] is its corresponding height) have amplifying effects, and [Formula: see text] (the second slope angle) has de-amplifying effects on the site response. (ii) [Formula: see text] has a straight effect on intensifying the effects of both [Formula: see text] and [Formula: see text]. (iii) The combined effects of slope angles have been found to be important in modifying the response so more than a single slope should be considered for seismic analysis. (iv) Engineers should use the maximum amplification of 2.4 in case of valleys with the first and second slope angles below [Formula: see text].


2019 ◽  
Vol 123 ◽  
pp. 470-497 ◽  
Author(s):  
Mario Sáenz ◽  
César Sierra ◽  
Juan Vergara ◽  
Juan Jaramillo ◽  
Juan Gomez

2017 ◽  
Author(s):  
Brendon Archie Bradley

This paper provide insights into the observed ground motion records from the 14 November 2016 $M_w7.8$ Kaikoura earthquake. Specific detail is given to examining observations in the near-source and those in the urban Wellington / Lower Hutt regions through a combination of time series and response spectra to understand salient source, path and site effects.Several ground motions exceeding 1.0g horizontal are recorded, as well as up to 2.7g in the vertical direction at one location.The complexity associated with multi-fault rupture is clearly evident in several strong motion stations in the near-source region.Significant site effect case histories from sedimentary and reclaimed soil deposits and topographic effects are observed in the Wellington and Lower Hutt regions.To provide further insights, predictions from preliminary broadband ground motion simulations are examined to more directly interpret the observations.


1997 ◽  
Vol 2 (2) ◽  
pp. 118-124
Author(s):  
Geoffrey Hall

Patients who have undergone several sessions of chemotherapy for cancer will sometimes develop anticipatory nausea and vomiting (ANV), these unpleasant side effects occurring as the patients return to the clinic for a further session of treatment. Pavlov's analysis of learning allows that previously neutral cues, such as those that characterize a given place or context, can become associated with events that occur in that context. ANV could thus constitute an example of a conditioned response elicited by the contextual cues of the clinic. In order to investigate this proposal we have begun an experimental analysis of a parallel case in which laboratory rats are given a nausea-inducing treatment in a novel context. We have developed a robust procedure for assessing the acquisition of context aversion in rats given such training, a procedure that shows promise as a possible animal model of ANV. Theoretical analysis of the conditioning processes involved in the formation of context aversions in animals suggests possible behavioral strategies that might be used in the alleviation of ANV, and we report a preliminary experimental test of one of these.


1993 ◽  
Vol 107 (3) ◽  
pp. 530-532 ◽  
Author(s):  
Dragana Ivkovich ◽  
Jon M. Lockard ◽  
Richard F. Thompson
Keyword(s):  

PsycCRITIQUES ◽  
2010 ◽  
Vol 55 (39) ◽  
Author(s):  
Michael Axelman
Keyword(s):  

2014 ◽  
pp. 144-160
Author(s):  
E. Avraamova ◽  
T. Maleva

This paper presents an attempt at answering the question of why the scope of socio-economic inequality stays the same in Russia despite the poverty rate reduction. The authors are looking for the causes of this phenomenon in the domain of social dynamics, i.e., in the nature of current vertical mobility mechanisms. To study these mechanisms the authors use resources approach. The information database of the research is the representative sample survey carried by the Institute for Social Analysis and Forecasting at RANEPA in 2013. The majority of the respondents have, in fact, vague idea of general parameters of the economic development of the country and of their personal prospects to adapt to possible changes. This state of things hinders the development of rational models of socio-economic behavior directed towards the growth of personal and family welfare and productive in terms of national economy development - these, eventually, would advance the reduction of socio-economic inequality. Various groups of population are predominantly oriented towards converting social capital viewed not in terms of trust and solidarity, but in terms of ties or connections and of personal loyalty.


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