Dr. Erol Kalkan, P.E.
QuakeLogic Inc.
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I am a structural engineer and CEO of QUAKELOGIC. I earned my B.Sc. degree in Civil Engineering and M.Sc. degree in Engineering Seismology from the Middle East Technical University. My second M.Sc. degree in Structural Engineering is from the Bosporus (Bogazici) University in Turkey. My doctorate degree in Structural Engineering (major) and in Geotechnical Engineering (minor) is from the University of California, Davis. My postdoctoral studies were at the University of California, Berkeley. I authored and co-authored more than 120 peer-reviewed publications on various issues in structural engineering and engineering seismology. My research and publications are at www.quakelogic.net
Python, MATLAB, Fortran
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Feeds
Enviada
SPECTRAL WHITENING
This function applies whitening to a given signal within user defined frequency band.
12 meses hace | 12 descargas |
Enviada
Time-domain Sinc Interpolation (Resampling)
Time-domain SINC resampling (interpolation) function with a simple example
12 meses hace | 16 descargas |
Enviada
Complex Mode Indicator Function (CMIF)
This is a robust complex mode indicator function, which can be used to identify Eigen values. A simple example is provided.
más de 1 año hace | 2 descargas |
Enviada
Spectral acceleration, velocity and displacement spectra
This is a MatLAB function to compute linear-elastic damped response spectrum of time series
más de 4 años hace | 25 descargas |
Enviada
Nonlinear multi-axial constant ductility spectra (H,V,tilt)
Robust function to generate multi-component constant-ductility nonlinear-inelastic response spectra.
más de 4 años hace | 1 descarga |
Enviada
An automated P-phase Arrival Time Picker with SNR output
PPHASEPICKER is a powerful tool for automatically picking P-phase onsets.
alrededor de 5 años hace | 16 descargas |
Enviada
spikeRemoval
This function replace or delete unwanted spikes (outliers) exceeding the threshold value using histogram method.
alrededor de 5 años hace | 6 descargas |
Enviada
smoothing function
smoothCurve offers various different window smoothing options.
alrededor de 5 años hace | 2 descargas |
Enviada
An Automated S-phase Arrival Time Picker with SNR Output
SPHASEPICKER is a powerful tool for automatically picking S-phase onsets.
alrededor de 5 años hace | 6 descargas |
Enviada
AUTODETECT BANDPASS FILTER CORNER FREQUENCIES
cornerFreqs automatically detects appropriate bandpass filter corner frequencies by comparing signal's spectrum with noise spect...
alrededor de 5 años hace | 3 descargas |
Enviada
Crop and save MatLAB figure as PDF (savePDF)
This simple function nicely crop the figure and save it as PDF
alrededor de 5 años hace | 1 descarga |
Enviada
inteFD
Computes integration of discrete time-signal in frequency domain
alrededor de 5 años hace | 6 descargas |
Enviada
diffFD
Computes derivative of discrete time-signal in frequency domain
alrededor de 5 años hace | 5 descargas |
Enviada
COMPUTE SMOOTH FOURIER AMPLITUDE SPECTRUM (smoothFAS)
This function computes Fourier amplitude spectrum and its smoothed version. For smoothing, it uses window averaging.
alrededor de 5 años hace | 5 descargas |
Enviada
SMOOTHING FUNCTION FOR FOURIER AMPLITUDE SPECTRUM
smoothSpectra offers different smoothing options for Fourier amplitude spectrum. Default window function is Konno-Ohmachi.
alrededor de 5 años hace | 9 descargas |
Enviada
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
alrededor de 6 años hace | 3 descargas |
Enviada
xcorrFD(x,y)
xcorrFD takes two discrete time signals as input and calculates cross-correlation and delay
más de 6 años hace | 3 descargas |
Enviada
Frequency Response Function of Accelerometer (Oscillator)
This code computes frequency response function (FRF) of an accelerometer (SDF Oscillator)
casi 7 años hace | 1 descarga |
Enviada
TIME-DOMAIN CROSS-CORRELATION FUNCTION
xcorrTD takes two discrete time signals as input and calculates cross-correlation and delay
casi 7 años hace | 8 descargas |
Enviada
NONLINEAR-INELASTIC RESPONSE HISTORY ANALYSIS OF A SDOF OSCILLATOR USING OPENSEES
Fast MatLAB function for nonlinear-inelastic time-history analysis of a SDOF oscillator.
casi 7 años hace | 5 descargas |
Enviada
Decimate (Downsample) A Signal in Frequency Domain
Frequency domain decimation function to reduce the sampling rate of a signal to a lower rate.
casi 7 años hace | 1 descarga |
Enviada
Epoch & Unix Timestamp Converter (epoch2UTC)
Converts an epoch/unix timestamp into a human readable date
casi 7 años hace | 3 descargas |
Enviada
NONLINEAR-INELASTIC MULTI-AXIAL TIME RESPONSE ANALYSIS OF SDOF OSCILLATOR
Robust MatLAB function for nonlinear-inelastic time-history analysis of SDOF oscillator
casi 7 años hace | 1 descarga |
Enviada
Graizer-Kalkan (2015) Ground-Motion Prediction Equation
Graizer-Kalkan (2015) Ground-Motion Prediction Equation for earthquake strong motion estimates.
alrededor de 7 años hace | 8 descargas |
Enviada
Deconvolution of two discrete time signals in frequency domain
Compute deconvolution of two discrete time signals in frequency domain to study wave propagation.
alrededor de 7 años hace | 6 descargas |
Enviada
P-PHASE ARRIVAL TIME PICKER BASED ON AKAIKE INFORMATION CRITERION
Computes P-phase arrival time in windowed digital single-component seismic recording using AIC
más de 7 años hace | 5 descargas |
Enviada
Frequency-domain Zero-padding Resampling (Interpolation)
Frequency domain (FFT-based) resampling of discrete-time signal
más de 7 años hace | 3 descargas |
Enviada
Nonlinear-inelastic constant yield displacement response spectra
Compute nonlinear-inelastic constant yield displacement response spectra and input energy parameters
más de 7 años hace | 3 descargas |
Enviada
ASCE 41-06 Displacement Coefficient Method
Displacement coefficient method of ASCE 41-06 based on FEMA 440
casi 8 años hace | 1 descarga |
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