62 research outputs found
Quality of Dormitory Life among Girl Students in State Universities of Iran
Student dormitory as a social and cultural space plays an important role in students' satisfaction from university and higher education and their educational performance, which is why understanding the living conditions of dormitories and their management is necessary to improve it. The present article, while conceptualizing the quality of dormitory life, uses survey method and questionnaire technique to study the quality of dormitory life among 2500 students in 10 university districts and 22 universities in the country. The findings showed that in the welfare dimension, students were dissatisfied with the facilities of the room, the building and the dormitory, the cultural facilities and the physical welfare facilities. In the cultural dimension, on the one hand, students were dissatisfied with the cultural activities and programs in the dormitory, and on the other hand, they would not enjoy their leisure time. In the social dimension, the identity of social pathologies among girls was mainly related to sexuality and friendship relationships (friendship, sexual and party). The most commonly used tobacco products among students were first hookahs, followed by cigarettes, alcoholic beverages, drugs and pip. Many of them were dissatisfied with the time of traffic in the dormitory. In general, students' satisfaction with the subjective quality of dormitory life, both intuitively and in logical form, was low. The results indicate that there is a low level of quality of objective life in dormitories, which in turn affects their subjective quality
A study on flow behavior of A-286 superalloy during hot deformation
The hot deformation behavior of A-286 superalloy has been characterized using hot compression experiments in the temperatures between 1000 and 1100 °C and strain rates varying between 0.001 and 0.1 s−1. In addition, hot workability of this alloy has been analyzed by employing flow-localization parameter. The results show that both kinds of softening mechanism, dynamic recovery and dynamic recrystallization, occur during hot working, where at 1000 °C the main mechanism is dynamic recovery and at higher temperatures and strain rate of 0.001–0.01 s−1 dynamic recrystallization takes place. Calculations demonstrates that this alloy mainly have a good workability for the utilized deformation conditions however, at temperatures around 1050 °C critical conditions may be raised and flow localized region could be formed
Grain size distribution after similar and dissimilar gas tungsten arc welding of a ferritic stainless steel
In this study, gas tungsten arc welding of ferritic stainless steel and grain
size distribution in heat affected zone of the welded samples were
investigated. Both similar and dissimilar arc welding operations were
considered where in dissimilar welding joining of stainless steel to mild
steel was examined. In the first stage, a three-dimensional model was
developed to evaluate temperature field during and after arc welding while
the model was performed using finite element software, ANSYS. Then, the
effects of welding heat input and dissimilarity of the joint on the weld pool
shape and grain growth in HAZ of stainless steel was investigated by means of
model predictions and experimental observations. The results show that the
similar joint produces wider HAZ and considerably larger grain size structure
while in the dissimilar welds, the low carbon part acts as an effective heat
sink and prevents the grain growth in the stainless steel side as well
reduces the welding maximum temperature
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