hi and thank you for your response.
as most of non native speakers suffer from lack of cohesion in writing
is there any tool or mechanism to help me testing my writings cohesion
especially for writing a technical papers.,.
again thank you..
Try comparing an example of your own writing with a text from a native source in our language analyser: http://www.usingenglish.com/members/text-statistics.php
See if in a text of a similar length, you are using as many cohesive devices. If there is a big difference, then you are probably not writing sufficiently coherently.