Bituminous pavement is the most prevalent type of road construction in the Syrian Arab Republic and is widely used in all regions of the world. The proportion of roads that depend on this type of pavement is about 93% in the United States of America due to the ease and speed of its construction and maintenance.
In this study, the effect of temperature on volume strains in three
types of local clay soils was studied after adding different percentages of
sand for each soil (10%-20%-30%40%-50%) when temperatures change
from (20-60)° C to be used as liners i
n solid waste landfill sites . The
results of the study showed that the mixing of sand with the clay played a
key role in reducing the magnitude of volume strains between (24-27%)
of the value of strains.
The research aims to make a statistical approach to the cases of esophageal atresia by
its types and incidence, and to study the surgical treatment outcome and choose the best
method of treatment and follow up.
The study included 27 newborn patien
ts admitted in the Neonatal Intensive Care Unit
at Al-Assad University Hospital and Tishreen University Hospital in Lattakia, due to
diagnosis of esophageal atresia or tracheoesophageal fistula, from the beginning of January
2010 until the end of 2015. 14 of patients were males and 13 were females. Gross
classification of esophageal atresia was used, type (C) was found in 21 cases, type (A) was
found in 4 cases, type (E) was found in 2 cases, while type (B) and (D) were not seen. We
studied The clinical symptoms in newborn patients with this malformation, radial and
laboratory findings and associated malformations. We used esophageal contrast study
insure the diagnosis when needed. With type (C), we did primary anastomosis in 20 cases
and cervical esophagostomy with gastrostomy in only 1 case. With type (A), we did
esophagostomy with gastrostomy in all cases. With type (E), we closed the fistula with
cervical approach in all cases. The survival rate was 70.4%. Spitz classification was used
for risk assessment. The incidence of complications included anastomotic leakage 30% and
anastomotic stricture 69.2%.
The telescopic cantilever beam is widely used in different types of cranes. These
structures are flexible; it can expand or shrink according to the operating conditions. The
dynamic changes of the total length of the structure lead to time-dependen
t vibrational
characteristics. In practice, CAD modeling for this case is a challenging matter due to the
nature of the problem of analyzing stress and deformation occurring during the operation
of the crane. This research discusses the feasibility of finding a solution for the design
problems initialized during the failure of the telescopic cantilever beam through the
application of Finite Element Analyses (FEA) in order to find the ideal dimension of the
structure which represents the best design for the telescopic cantilever beam.
Pilot clinical study of patients who underwent injection of grease to
restore the size and structure of the nose where the patients were
divided into two groups, the first group included 59 patients injected
self tallow conducted them as a result
of the presence of congenital
malformation or acquired in the nose area has been repeated
injections again if necessary after 3 months of injections first in
different anatomical locations including the nose tip and Dean
appeared the nose as well as the root of the nose. The second group
included 36 patients self-injecting fat carried them to repair
deformities after rhinoplasty. Where the results were studied for a
year, depending on the patient and surgeon satisfaction and people
around the patient for cosmetic results of data collected.
This paper deals with the study of abnormalities crawl that occur in
soils Algdharyh bulging Khat turns out that these abnormalities are
not related only to enter the water to the soil, but there are
distortions in order to get the bulge constant moisture and these
distortions you get with the times. This research aims to
theoretical and practical study of the behavior of creep in
Algdharyh bulging soil.
This research aims to study the deformations creep in clayey soils
treatment with calcium chloride.
Creep experiments were carried out on samples of soil was added
with different ratios of calcium chloride compound, was measured
deformations with time and monitor the impact of the proportion of
calcium chloride added to the soil to these deformations.
There are many sources that cause the emergence of geometric deformations in close
range images. These deformations are accumulated and not present singly in the image.
Therefore, it is necessary to rectify (correct) the image before extracting geo
metric or
semantic data from it.
Two methods are available to rectify the close range images. These ones are the
parametric and the non-parametric methods. Non-parametric approach does not require
knowledge of the parameters of the used camera. Control points and geometric
transformations are considered as the two main components in the non-parametric
approach.
Usually, barrel and perspective deformations are present in close range images. In
this paper, we will study the impact of the distribution of control points and the degree of
geometric transformation on the correction of the image of these deformations. The test
was performed using a close range image of a historical façade. This image was exposed to
previous deformations by simulation. The goal is to investigate the effect of the
distribution of control points and on the effectiveness of global (linear) and local
transformations used to rectify the close range images. It has been demonstrated that the
control points located in different parts of the image have different deformation rates, the
control points distributed in the center of the image suffers less deformations, and local
transformations give the best results when rectifying images with complex deformations.
Slabs are considered one of the most exposed elements to disasters and deformities
that can be clear to the viewer. These deformities are reflected as sign of defects that
appear clearly on big slabs. So, here comes the importance of applying and d
esigning
accurate slabs.
The purpose of this research is stating the need for persistent efforts to get a better
form of the slabs in order to increase their ability to be able to carry any outside extra
weights without the appearance of any deformities that might take place during the period
of investing the building. When deformities happen, they have bad effect on the beauty
and main function (purpose) of the building.
This research includes an experimental study for the real applicable slabs under our
supervision, in addition to a theoretical study about the deflection appearing on the slabs
by taking into consideration the plastic specifications of the concrete and the formation of
cracks.
This research aims at constructing reflexive deflections in the slabs during the
construction period and measuring the actual deformities and watching them through a
period of time, then comparing them with the theoretical expected deformities.
The findings that we could get at the end of our research are supposed to play a main
role in choosing the best design for the mandate slabs and at the same time getting the best
value for the reflexive deflection that can be used in the slab to make it better functionally
and to increase its ability to resist the outside applied weights. We hope this is just a start
for more research in this field.
The mixed use of steel bars and carbon rods in concrete beams can offer beams with different behaviour from that of steel reinforcement only. This paper studies the case of reinforcing concrete beams with two layers of bars, and the main parameters
investigated are the proportion and the distribution of carbon rods in the cross-section. Four groups containing 12 beams are tested, and each is reinforced with 4 bars located in two layers. The first group includes three control beams reinforced with steel bars, while the second includes three beams reinforced with carbon bars. Each of the third and fourth groups includes three beams reinforced with two steel bars and two carbon bars, whereas in the third group, steel bars are located above carbon ones, but in the fourth group, steel bars are located under carbon ones. Concrete beams reinforced with carbon rods in the second group exhibit a higher load carrying capacity and deflections, compared with other beams. However, the beams in the third and fourth groups have approximately the same load carrying capacity and the same behaviour up to the load level equal to 75% of their load carrying capacity. But after that, the beams in the fourth group become more deformed, compared with those of the third group.
