in the current work, different methods for optimization of turbine blade internal cooling are investigated, to achieve higher cyclic efficiency and output power for a typical gas turbine. a simple two-dimensional model of c3x blade is simulated and validated with available experimental data. the optimization process is performed on this model with two different methods. the first method is a po...

In this project we are going to study about the performance of family of four flooding sequence protocols in wireless sensor networks using simulation and analyze which protocol having better performance compared to other three protocols.. Flooding is a communication technique that can be used by the base station of the sensor network requires to send a message to each and every sensors in the ...

Multi-level modeling was used to understand how supervisor assign overall job performance ratings. Results indicated a uniform relationship between task and overall performance ratings across supervisors but significant variability in the relationship between contextual and overall performance ratings. Employee and supervisor attributes were examined to explain this variability. Job performance...

A sample of 314 consecutive clinical and forensic referrals with mild traumatic brain injury was evaluated using the Meyers Neuropsychological Battery (MNB). A comparison was made of the test performance and performance on the embedded Symptom Validity Tests (SVTs) with a control for multicolinearity utilized. Using the nine embedded SVTs in the MNB, the incidence of poor effort fell at 26% of ...

To the Editor: Obuchowski et al. (1 ) recently reviewed the uses and misuses of ROC curves and explained, in simple terms, some sophisticated solutions to frequent problems, thereby popularizing tools described elsewhere, notably in the book coauthored by Nancy Obuchowski (2 ). What prompts me to comment on this careful and timely review are two fundamental questions: What properties should an ...

background and objectives: constant monitoring of healthcare organizations’ performance is an integral part of informed health policy-making. several hospital performance assessment methods have been proposed in the literature. pabon lasso model offers a fast and convenient method for comparative evaluation of hospital performance. this study aimed to evaluate the relative performance of hospit...

background: total system design (tsd) factors are design factors, which have impact on overall performance of the power plants in context of total human engineering or macroergonomic. the evaluation of the impact of tsd factors was the main goal of this study. the main objective was human factors engineering on human performance in a power plant. methods : the systems being studied are the cont...

In this study, the overall performance of air PV/T, based on energy and exergy analysis has been investigated. Two combinations of air PV/T, which consist of unglazed and glazed air PV/T, are considered. Thermal analysis and numerical calculations were carried out, and the performance parameters of the system for the climate conditions of Kerman were studied. The results are presented in graphs...

background:  allogeneic hematopoietic stem cell transplantation (allo-hsct) is used as treatment of choice for patients with acute myeloid leukemia (aml). we aimed to evaluate the prognostic factors in 2-year overall survival of patients with non-m3 aml who underwent allogenic hsct. methods: this is a cross sectional retrospective study. demographic data and study of variables such as age, sex,...