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ABSTRACT:The rheological characterization of highly filled suspensions consisting of a Newtonian matrix (hydroxyl-terminated polybutadiene), mixed with two different sizes of aluminum powder (30% and above by volume) and two different sizes of glass beads (50% and above by volume), was performed using a parallel disk rheometer with emphasis on the wall slip phenomenon. The effects of the solid content, particle size, type of solid particle material, and temperature on slip velocity and slip layer thickness were investigated. Suspensions of small particles of aluminum (mean diameter of 5.03 m) did not show slip at any concentration up to the maximum packing fraction. However, suspensions of the other particles exhibited slip at the wall, at concentrations close to their maximum packing fraction. In these suspensions, the slip velocity increased linearly with the shear stress, and at constant shear stress, the slip velocity increased with increasing temperature. The slip layer thickness increased proportionally with increasing size of the particles for the glass beads. Up to a certain value of (filler content/maximum packing fraction), / m , the slip layer thickness divided by the particle diameter, ␦/D P , was 0, but it suddenly increased and reached a value that was independent of / m and the temperature. On average, the ratio of ␦/D P was 0.071 for aluminum and 0.037 for glass beads.

Introduction: Emotional stability is a personality trait that includes natural and constant domains of emotions found in individuals at different stages of life and in different environments.This study aimed at determining the relationship of emotional stability with job conscience and professional commitment. Methods: This study had a descriptive-analytical design. This study was conducted on 200 nurses of Kerman University of Medical Sciences through cluster random sampling. Data was gathered using a questionnaire, which included 4 parts: demographic data, Goldberg emotional stability questionnaire, Mac Cry Job conscience questionnaire, and Henning and Clikeman professional commitment questionnaire. Data were analyzed with the SPSS version 20 software using Pearson correlation test, independent T-test, Analysis of Variance (ANOVA), and multiple linear regression. Results: The mean score of emotional stability, Job conscience, and professional commitment among nurses was 46.2 (±15.6), 44.4 (±14.3), and 49 (±14.4). Forty percent of nurses had high emotional stability. There was a statistically significant positive correlation between emotional stability with Job conscience (P < 0.0001) and professional commitment (P < 0.00001). There was also a statistically significant positive correlation between Job conscience and professional commitment (P < 0.0001). Conclusions: According to the results of the present study, there was a positive correlation between emotional stability and job conscience, and professional commitment. Therefore, attention to emotional stability, training and planning for its growth, creating corporate profits, and improving professional commitment and job conscience is required.

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