DECOLOG 5.6.1 (last update 31/07/2017)

Technical Informations
(PDF manual  old version 3.0)

DECOLOG Software Presentation
(May 2016 - PDF format 4.2MB)

Downloads DECOLOG  software

Lorenzo Borselli
Instituto de Geologia / Fac. De Ingegneria
Universitad Autonoma de San Luis Potosě,
Av. Dr. Manuel Nava 5,
C.P. 78240 San Luis Potosí, S.L.P. UASLP (MEXICO),

past affiliation:
Research Institute for Geo-Hydrogeological Protection (CNR-IRPI)
Via Madonna del Piano 10, 50019,
Sesto Fiorentino, Florence (ITALY)

Damiano Sarocchi
Instituto de Geologia / Fac. De Ingegneria
Universitad Autonoma de San Luis Potosě,
Av. Dr. Manuel Nava 5,
C.P. 78240 San Luis Potosí, S.L.P. UASLP (MEXICO),



DECOLOG. 5.6.1,
Win 64 bit , Portable app.
(last update 31/07/2017)

Proyecto Ciencia Basica CB-2012/184060


What  is DECOLOG
Experimentally derived particle size distribution often shown multimodal shape and this characteristic is usually interpreted as a mixture of two or more populations. The origin of these mixture  has  been commonly interpreted  as due to the complex  processes  linked to the origin  of the sediment ad clasts , to the transport and final  deposition, or in other terms, the geological cycle of sediment transport and evolution, the weathering and soil process  may affect the final distribution of  particles  present in the sampled deposit.
The basic idea is that the all the processes responsible of the deposit leave some trace of them inside the special characteristics of the mixture and their populations. We assume that the mixture maintains encoded in its the  global distribution informations
Aim of DECOLOG software is develop a solution to decode the information present in the natural mixture of particles/sediments using, as paradigm, the log-normal or weibull distributions and particularly a defined mixture of these distributions.
Decolog  performs this operation using innovative techniques  of optimization and   in automatic way, without the needs of  special efforts from user, as the initial guessing of Peaks of the observed distribution
The easiness of use is one of the most innovative and appreciated characteristics of current version of  DECOLOG

 DECOLOG 5.2 main window (click on the image to enlarge)

Please note: now is possible download the DECOLOG version 5.6.1 (64 bit) at the download page.. the documentation isn't updated. will be updated soon.. The release 5.6.1 contains important improvements and in particular now DECOLOG code  is released only in the Win 64 bit version.
The release 5.6.1 (64 bit) of DECOLOG may be run only in Windows 7 ,8x and 10,  64 bit architectures. In this  case  the speed is increased until +50%.
The the DECOLOG optimization engines allow to consider components (Lognormal or Weibull distributions) with negative skewness (so left tailed). To do that we use a generalized four parameters Lognormal or Weibull distribution.

The internal optimization engine of DECOLOG has been greatly improved using last findings in Multiobjective optimization algorithms based on Differential evolution (DE) and trigonometric differential evolution(TDE). That’s improving the speed of convergence and reliability and reproducibility of final results. The new TDE optimization engine  has been also implemented  since 2009 in DECOLOG software.

In the updated version 5.6.1 now DECOLOG can be installed in any drive or directory of your HD or USB key. Decolog is a full PORTABLE app.  As well data to be brpcessed can be stored in any path of your system..

Enjoy  DECOLOG...!!

 DECOLOG 5.2 in Windows 8.1 (click on the image to enlarge)

Credits and LICENCE
Proyecto Ciencia Basica CB-2012/184060

 Free Pascal 3.0

This software is released as FREEWARE for the scientific community.
This imply that is released and  downloadable  for free, but without warranties .
The authors of this software  want acknowledge  the  people that with their testing activities and suggestions  helped us to improve the performance  of DECOLOG. 
All the Suggestions from the users are welcomed  and greatly appreciated.

DECOLOG has been realised entirely in Object Pascal programming language, using
FPC compiler,  
 GDB  debugger 

A special credits to :
sumatraPDF (freeware PDF viewer)
Gnuplot (freeware grafic rendering engine)


Lazarus 1.6

Graphic PDF output of  DECOLOG 5.2 (click on the image to enlarge)

        Last  update 31 july 2017- by L.B