for example:

the code is:

...................................................................

for i=1:n

url(i)='http://www.scimagojr.com/journalsearch.php?q=i&tip=sid&clean=0';

end

...................................................................

Result:

url(1)='http://www.scimagojr.com/journalsearch.php?q=1&tip=sid&clean=0';

url(2)='http://www.scimagojr.com/journalsearch.php?q=2&tip=sid&clean=0';

url(3)='http://www.scimagojr.com/journalsearch.php?q=3&tip=sid&clean=0';

.

.

.

url(n)='http://www.scimagojr.com/journalsearch.php?q=n&tip=sid&clean=0';