Abstract. The design and the modal analysis of a small turbocharger rotor system are carried out in this paper. The design process and method of rotor system are summarized. Some useful conclusions are obtained in the modal analysis. These results will provide engineers with valuable information about the vibration characteristics of the turbine rotor system and the design of the rotor system.
Background: The aim of this study was to evaluate the roles of interleukin (IL)-17A in risk stratification and prognosis of patients with sepsis-associated acute kidney injury (SAKI). Methods: We enrolled 146 sepsis patients (84 non-SAKI and 62 SAKI patients) admitted to the emergency department from November 2020 to November 2021. Patients with SAKI were differentiated based on the severity of acute kidney injury. All clinical parameters were evaluated upon admission before administering antibiotic treatment. Inflammatory cytokines were assessed using flow cytometry and the Pylon 3D automated immunoassay system (ET Healthcare). In addition, a receiver operating characteristic (ROC) curve was utilized to determine the prognostic values of IL-17A in SAKI. Results: The levels of creatinine, IL-2, IL-4, IL-6, IL-17A, tumor necrosis factor alpha, C-reactive protein, and procalcitonin (PCT) were significantly higher in the SAKI group than in the non-SAKI group (p < 0.05). The level of IL-17A revealed significant differences among stages 1, 2, and 3 in SAKI patients (p < 0.05). The mean levels of PCT, IL-4, and IL-17A were significantly higher in the non-survival group than in the survival group in SAKI patients (p < 0.05). In addition, the area under the ROC curve of IL-17A was 0.811. Moreover, the IL-17A cutoff for differentiating survivors from non-survivors was 4.7 pg/mL, of which the sensitivity and specificity were 77.4% and 71.0%, respectively. Conclusion: Elevated levels of IL-17A could predict that SAKI patients are significantly prone to worsening kidney injury with higher mortality. The usefulness of IL-17A in treating SAKI requires further research.
Abstract. This paper used solidworks to design solar powered electric bike structure. By comparing and verifying the possibility of several installation methods, the program determined that the solar panels is placed in front and rear frame and that the solar tracking device is installed. And the structure interfaced into the ANSYS through the graphical data conversion. The finite element model of the bike is generated by grid division. The finite element analysis of the solar panel installation location is carried out. The strength and stiffness characteristics of the vehicle body are calculated in the static analysis. The frequency of the vehicle body is calculated by modal analysis.
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