determination of the starter torque-speed diagram is a major task in the design or selection of a proper gas turbine starter. in this paper, the maximum power of the mgt-40 gas turbine starter was calculated based on the dynamics of the rotor, start-up logic, and compressor map. in a recent research, the pressure ratio was assumed as a linear function of the rotor speed and the required starter...

The use of Virtual Exchange (VE) to connect Student Teachers (STs) with learners as part their preparation is an area growing interest (e.g. Adnan, 2017; Arnold, Ducate, Lomicka, & Lord, 2005; Dooly Sadler, 2013; Üzüm, Akayoğlu, Yazan, 2020). There has also been in issues task design VE (Arnold et al., Hampel, 2006, 2010; Hauck, Kurek Müller-Hartmann, O’Dowd Ware, 2009). This study involved...

Expectancy-Value Theory predicts that expectancy of success and subjective task value (STV) underlie differences in motivation achievement. This study investigated how gender SES related to achievement mediated by success, STV, their interaction. The sample consisted 396 participants final year upper secondary education. Self-report measures were completed expectancy, socio-economic indicators....

Psychometric function plots the percentage of the correct responses among an entire pool of responses (cumulative probability) in a psychophysical task versus the amount of change in an independent variable. These changes in the independent variable are made with reference to a constant initial value. If this initial value is altered, the psychometric function will change according to Weber’s l...

Psychometric function plots the percentage of the correct responses among an entire pool of responses (cumulative probability) in a psychophysical task versus the amount of change in an independent variable. These changes in the independent variable are made with reference to a constant initial value. If this initial value is altered, the psychometric function will change according to Weber’s l...