This study aims to find the best social and economic factors that affect the number of students in higher education using the descriptive analysis approach, and find the mathematical model that connects the principal components representing the socia
l and economic factors and the number of students in higher education in Syria.
The most important results that have reached were the principal components
representing the social and economic factors, after doing the orthogonal rotation and was representing the first component (number of members the labor force that are gainfully) employed, the number of population per health doctor, number of members, the labor force that are self-employed, number of members the labor force that are unmarried, number of population per dentist, higher education budget, and number of nurses. And the four thcomponent (number of members the labor force that are married), both components affected positively on the number of students in higher education, the second component (economic activity rate of the human power, average number of people per pharmacist, number of members the labor force that are gainfully unemployed, the third component (number of members the labor force that are divorced and widowed) affected negatively on the number of students in higher education.
In this paper, we introduce a continuous mathematical model to
optimize the compromise between the overhead of fault tolerance
mechanism and the faults impacts in the environment of
execution. The fault tolerance mechanism considered in this
rese
arch is a coordinated checkpoint/recovery mechanism and the
study based on stochastic model of different performance critics of
parallel application on parallel and distributed environment.
The process of direct steam generation was studied in this work
within a parabolic trough solar collector in order to generate
electricity. The study was based on the equations of a two phase
flow to study heat transfer in the collector's tube. Th
e study showed
a possibility to reach an effective model to study the performance of
this type of solar collectors which will aid in the understanding of
the working principle of power plants and to research further
towards new control strategies of solar power plants or towards the
hybridization with other types of power plants.
