COMPOSITE SELF-LUBRICATING MATERIALS

Author(s):  
V.A. BELY ◽  
A.I. SVIRIDENOK ◽  
M.I. PETROKOVETS ◽  
V.G. SAVKIN
Keyword(s):  
Automatica ◽  
2021 ◽  
Vol 127 ◽  
pp. 109499
Author(s):  
Huahui Xie ◽  
Li Dai ◽  
Yu Luo ◽  
Yuanqing Xia

2013 ◽  
Vol 770 ◽  
pp. 308-311 ◽  
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
Zhao Qiang Chen ◽  
Guang Yong Wu

A new nanomicro composite self-lubricating ceramic tool material was prepared with vacuum hot pressing technique. The effect of nanoAl2O3 powders on the microstructure and mechanical properties of nanomicro composite self-lubricating ceramic tool material was investigated. With the increase of nanoAl2O3 content, the hardness and fracture toughness first up then down. When the nanoAl2O3 content is 4 vol.%, the flexural strength, hardness and fracture toughness reaches 562 MPa, 8.46 MPa·m1/2 and 18.95 GPa, respectively. The microstructure and mechanical property of nanomicro composite self-lubricating ceramic tool material can be improved by the grain refinement strengthening of nanoAl2O3.


Author(s):  
Tao Lu ◽  
Hebin Liang ◽  
Wenxuan Cao ◽  
Yankang Deng ◽  
Qingli Qu ◽  
...  

Narcissism ◽  
2018 ◽  
pp. 17-27
Author(s):  
Neville Symington ◽  
J. Grotstein
Keyword(s):  

Author(s):  
Heng Wang ◽  
Shukun Cao ◽  
Yi Cui ◽  
Shuqiang Xu ◽  
Zijian Cao ◽  
...  

2018 ◽  
Vol 54 (5) ◽  
pp. 300-308
Author(s):  
Nathan French ◽  
Christopher Giuliano ◽  
Michelle Dehoorne-Smith

Purpose: The purpose of this project was to evaluate a pharmacist annual competency evaluation (PACE) program for pharmacists at a single site. The results of this evaluation will be utilized to understand the effectiveness of PACE and provide suggestions for programmatic improvement. Methods: The primary outcome of this study was to evaluate the change in pharmacist composite self-efficacy (PSE) scores before and 1 month after the PACE program. The composite score was composed of self-efficacy related to 5 different clinical tasks. The 5 tasks selected were advanced cardiac life support, chemotherapy, dofetilide, patient-controlled analgesia pump, and alteplase (tPA). Secondary outcomes included evaluating each component of the composite score at 1 month, changes in composite score and components at 1 year, and changes in the generalized self-efficacy (GSE) survey at 1 month. Last, themes were identified from a feedback questionnaire after completion of PACE. Results: For the primary endpoint, PSE composite scores increased by 12.6% from pre-PACE to post-PACE at 1 month (79.6 ± 12.2 vs 89.7 ± 5.8; P < .001). All components of the composite PSE score showed a statistically significant improvement from baseline to 1 month. At 1 year, tPA was the only clinical task that was statistically different from baseline. GSE scores increased by 11.4% from pre-PACE to post-PACE (31.6 ± 3.6 vs 35.4 ± 2.8). No pharmacists required remediation. Conclusion: The competency assessment program led to improvements in pharmacist self-efficacy in dealing with low-volume, high-risk clinical pharmacy tasks. Future studies could assess various forms of competency assessment and timing of these programs to determine the most effective way to ensure pharmacist competency.


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