Amplification and predominant periods of soils in Düzce Basin were investigated by analysing the data sets last two major earthquakes aftershocks Kocaeli occurred 1999 with a magnitude Mw:7.4 Mw:7.2, respectively. Two different methods named horizontal/vertical spectral acceleration ratio (HVSAR) soil-to-rock Response Spectral Acceleration Ratio (RSAR) used to determine soil amplifications for ...

In this article, mutual relations between Haar and ReedMuller spectral and functional domains are presented. The new relations apply to any size of the transform matrices in the form of layered vertical and horizontal Kronecker matrices. They allow the direct conversions between Haar and Reed-Muller functions and their corresponding spectra.

Hexagrid structural system is an innovated system with structural behavior which is similar to a tubular system. In this paper, a numerical study is conducted to estimate the seismic performance of horizontal hexagrid concerning the combined horizontal and vertical hexagrid, tubular and diagrid structural systems. First 30 and 50 story buildings are modeled using ETABS, then pushover and nonlin...

the main goal of the present study is to identify characteristics of the inter-station horizontal magnetic responses and the vertical magnetic data, as two types of magnetotelluric transfer functions, in the modeling procedure. through consideration of model responses and two-dimensional inversion of synthetic data, sensitivity of the data components in detecting different geophysical structure...

in order to determine the stability of underwater robots, their governing differential equations of motion in vertical and horizontal planes should be investigated. for horizontal plane stability, using routh stability criterion, four hydrodynamic coefficients, including derivatives of the lateral force and vertical moment with respect to sway and angular velocity are required. these coefficien...

This article considers the seismic behavior of beam-to-column joints in steel frames for different bolt arrangements by using of finite element modeling. As the most important beam-to-column joint type, the beam-to-column joints with end-plate is chosen for the analysis. Four different specimens have been analyzed. These models had some differences such as bolt arrangement and the presence or a...

This paper analyses the impact of sanctions against Iran in addition to other country-specific determinants on intra-industry trade between Iran and Shanghai Cooperation Organization (SCO) countries over the period 1997-2013. By disentangling total intra-industry trade (IIT) into horizontal and vertical IIT and after investigating bilateral trade pattern between Iran and SCO countries, determin...

Telah dilakukan penelitian mikrozonasi seismik di Desa Nekbaun, Kecamatan Amarasi Barat, Kabupaten Kupang dengan menggunakan metode Horizontal to Vertical Spectral Ratio (HVSR). Penelitian ini bertujuan untuk menentukan nilai indeks kerentanan (Kg) dan percepatan tanah maksimum (PTM), memetakan yang mencakup peta (PTM). Pengukuran mikrotremor Seismometer tiga komponen TDS-303S frekuensi natural...