thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

the aim of this study is explaining the relationship between social trust with citizenship ethic. The study population consisted of all high school students in Bushehr city that among this population, a sample of 360 students were selected by multistage random sampling method. the research tools included multi dimension comparison of recognized social support, questionnaire of social trust and ...

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

the primary goal of the current project was to examine the effect of three different treatments, namely, models with explicit instruction, models with implicit instruction, and models alone on differences between the three groups of subjects in the use of the elements of argument structures in terms of toulmins (2003) model (i.e., claim, data, counterargument claim, counterargument data, rebutt...

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This study was conducted to investigate the relationship between psychological capital components (self-efficacy, hope, resiliency and optimism) and academic burnout among college students. The research method was descriptive and correlational and the study population included the students of Faculty of Social Sciences University of Kermanshah in 2015-2016 among whom 200 students were selected ...