Mahmut R. Profile

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5.0

(7 reviews)

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$30 USD / hour

ankara,

turkey

$30 USD / hour

It's currently 5:31 AM here

Joined July 19, 2018

1 Recommendation

Mahmut R.

@Mahmutr

5.0

(7 reviews)

3.7

86%

$30 USD / hour

ankara,

turkey

$30 USD / hour

100%

Jobs Completed

100%

On Budget

90%

On Time

56%

Repeat Hire Rate

Consultant in Chemistry&Phys,Matlab/Octave

I'm a chemist, and a python/Matlab/Octave programmer. I have published more than 9 papers in prestigious journals and written multiple proposals. I have more than 7 years of experience in data analysis & processing, statistics, mathematical modeling and algorithm development using Python/Matlab/Octave. I can help you with your: -chemistry & chemical engineering problems, including chemical analysis, reaction mechanism & kinetics, thermodynamics, troubleshooting instruments & equipment, analyzing &interpreting experimental data; - editing & reviewing articles, reviews, proposals, and technical report. I'm also experienced in Matlab/Octave and Python, and can help you on: -data analysis, data processing, statistical analysis -optimization, regression, least square fits -algorithm design -coding and improving your codes

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Contact Mahmut R. about your job

Portfolio

4349223

This code do the following: if you supply a two column spectral data ( first column is wavenumber, second column is absorbance) dat, and initial peak parameters par0, it gives you optimised voigt line shape parameters parmin, and the fit and fitting quality information. The full code can be down loaded from https://www.mathworks.com/matlabcentral/fileexchange/57603-voigt-line-shape-fit?s_tid=prof_contriblnk

Voigt lineshape fit

4326865

$A set of functions has been developed in MATLAB to retrieve refractive indices from aerosol particle extinction spectra with the classical damped harmonic oscillator model. The aerosols are assumed to be spherical so that Mie theory can be applied to calculate the extinction efficiency and its derivatives. The particle size distribution is lognormal but can be easily adapted to other forms of distributions. The retrieved parameters are the particle distribution mean radius rm, the standard deviation σ, the dielectric constants at high frequency (ε_∞ ) ̇, and the classical damped harmonic oscillator band parameters, from which the refractive indices can be calculated. As a test, we extract the refractive indices of water ice and the particle size distributions from an extinction spectrum in the mid infrared region.$

MATLAB Code to retrieve aerosol properties from spectra

4349223

Voigt lineshape fit

4326865

MATLAB Code to retrieve aerosol properties from spectra

Reviews

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Showing 1 - 5 out of 7 reviews

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5.0

€50.00 EUR

Research Pt I: Continuous Performance Test (read full description please)

Again, Mahmut gave his best to create a scientifically based text with all requirements in English and Turkish. He had to read lots of literature and he extracted the information in them fitting in one short exposé. That's not easy!

Research

Scientific Research

Research Writing

English (UK) Translator

Turkish Translator

Zaliha Y.

@neurochic

•

5 years ago

5.0

€40.00 EUR

Medical/Research writing- own database access needed

Working with Mahmut R. was a very good experience. He wrote a special medical text with lots of citations, which were actually read by him and translated it into another language in a very short time, which I didn't expected. We would love to work again with him. A highly recommendable professional!

Zaliha Y.

@neurochic

•

5 years ago

5.0

$35.00 USD

Project for Mahmut R. -- 2

well done... He is a real expert... Thanks for ur help

Technical Writing

Physics

Simplified Chinese Translator

Statistical Analysis

+1 more

Kadhim A.

@Ghazanfari

•

5 years ago

5.0

$150.00 USD

Project for Mahmut R. -- 18/10/02 15:04:58

very good - I would like to work with you again - DEFINITELY

+1 more

Hesham A.

@alsurmihesham

•

6 years ago

5.0

$100.00 USD

Project for Mahmut R. -- 2

thank u very much

Technical Writing

Physics

Simplified Chinese Translator

Statistical Analysis

+1 more

Hesham A.

@alsurmihesham

•

6 years ago

Experience

Chemist

Dec 2013 - Dec 2017 (4 years)

I carried out research to generate particles that important to atmospheric and extraterrestrial aerosols and particles . The techniques involve using champers to control temperature, pressure, and concentration of the species, and follow the evolution of them using FTIR spectroscopy. I wrote Python and Matlab codes to streamline the analysis of theses data and visualize them. I also wrote codes to analyse the particles light scattering behavior and particle size distribution effect on it.