This research aims to study the process of natural gas condensate
stabilization by fractionation tower without reflux, and study the
effect of operating factors affecting the process such as the
operating pressure and temperature feed.
In this research the influence of the fineness of natural
pozzolana and lime on the properties of compaction ,
unconfined compressive strength and linear shrinkage of
clayey soil was experimented the finessess of natural pozzolana
used in this re
earch were 3500,4000,4500 cm²/g , finessess of
lime 4000 , 5000 , 6000 cm²/g.
The focal point of this thesis is design of a control system to achieve the stability of the
aircraft, by using a three-axis accelerometer sensor and a three-axis gyro. This thesis
aims to studying the quadrotor UAV, and depend this research as a base for subsequent
research on the various applications of this type of aircraft.
The purpose of this research is to study the improvement of soil properties by the
addition of lime in certain percentages. The soil used in this study was obtained from the
Baseet region, which is located by the Syrian coast. We have studied the e
ffect of lime on
the consistency, the swell characteristics and the shear strength of soil.
The results of this study have shown a remarkable reduction of both liquid and
shrinkage limits, and the plasticity index with the increase of lime percentage. As for
plasticity limit, it increases in the beginning then decreases slightly with the rising of lime
percentage.
For the volumetric variation, the susceptibility of swelling and the shrinkage of
improved soil with lime decrease, and the free swelling and the swelling pressure become
almost negligible with 4% of lime.
Based on the shear strength results, we can indicate a notable increase in the friction
angle and cohesion of soil with increasing of lime percentage up to 8% of lime. After that,
these two factors decrease.
Through the soil stabilization we follow improvement of the physical
properties of the soil by adding chemical binding materials. This paper deals
with the treatment of soil samples collected from four locations in the south of
Syria, that would b
e used in irrigation canals basement . The binding
material used for the soil treatment is quicklime (CaO). After different
treatments the soil samples have a different behaviour after addition of Lime in
the same percent which reflects their ability to be stabilized.
