Strain Rate Effect on Mechanical Properties of Cemented Backfill under Dynamic and Static Combined Loading

In order to study the influence of pillar stopping blasting on the stability of cemented backfill, the dynamic impact test under low strain rate (61.1∼86.8 s−1) was conducted on cemented backfill with two kinds of strength using three-dimensional coupled static-dynamic SHPB equipment. At the same time, the strain rate effect of failure mode, dynamic strength factor, and energy transfer of backfill were analyzed. The results show that when the cemented backfill was loaded under different strain rates in the initial three-dimensional static pressure environment, the pore compaction process was no longer obvious but directly entered the elastic deformation stage. Within the range of strain rates, the extreme value of dynamic intensity factor (DIF) of CTB230 was 6.8, while the extreme value of dynamic intensity factor of CTB310 specimen did not appear within the range of strain rates due to the improvement of the internal cementation force between particles. The fracture surfaces of specimens were perpendicular to the direction of load, and the failure mode was mainly the axial tensile failure, and the fracture surfaces were mostly close to the loading end. According to energy calculation, reflected energy accounts for 80.4%∼86.6% of incident energy; dissipated energy, 5.5%∼14.3%; transmitted energy, 5.3%∼7.9%.

Survey Rate Effect of the Intervention program is based on motivational interviewing in improving the quality of Life women with type 2 diabetes

Introduction: One of the most common chronic diseases is diabetes which has attracted increasing attention to health professionals and appropriate scope is for assessing the effectiveness of psychological interventions such as motivational interviewing. So, we decided that review rate effect of the Intervention program is based on motivational interviewing in improving the quality of Life women with type 2 diabetes. Methods: This study was quasi-experimental study that in 1394 was conducted on 55 patients with type II diabetes referred to Yazd Diabetes Research Center. To understand the quality of life was used of the scale of the short form questionnaire of 26 questions the quality of life (QOL). After collection, the data was entered SPSS18 software and were analyzed by covariance test. Results: The results showed that the mean and standard deviation of total quality of life score in both case and control groups before training were 63.52± 11.34 and 62.93 ± 11.40 and after training were78/16±6/94 and 61/77±10/62. The results showed a significant difference in the quality of life of women with type 2 diabetes after intervention than before the intervention. Also, the results of different areas of quality of life showed a significant difference after intervention (p = 0.001). Conclusion: The findings of this study showed that motivational interviewing to improve the quality of life of women Group intervention with type II diabetes it is suggested this technique as a complementary approach to improve quality of life diabetes and other chronic patients to be used.