4,997 research outputs found
A review on applications of wavelet transform and artificial intelligence systems in fault diagnosis of rotating machinery
Experimental set-up for investigation of fault diagnosis of a centrifugal pump
Centrifugal pumps are complex machines which can experience different types of fault. Condition monitoring can be used in centrifugal pump fault detection through vibration analysis for mechanical and hydraulic forces. Vibration analysis methods have the potential to be combined with artificial intelligence systems where an automatic diagnostic method can be approached. An automatic fault diagnosis approach could be a good option to minimize human error and to provide a precise machine fault classification. This work aims to introduce an approach to centrifugal pump fault diagnosis based on artificial intelligence and genetic algorithm systems. An overview of the future works, research methodology and proposed experimental setup is presented and discussed. The expected results and outcomes based on the experimental work are illustrated
Multicenter study demonstrates standardization requirements for mold identification by MALDI-TOF MS
Second-Order Eikonal Corrections for A(e,e'p)
The first-order eikonal approximation is frequently adopted in interpreting
the results of measurements. Glauber calculations, for example,
typically adopt the first-order eikonal approximation. We present an extension
of the relativistic eikonal approach to which accounts for
second-order eikonal corrections. The numerical calculations are performed
within the relativistic optical model eikonal approximation. The nuclear
transparency results indicate that the effect of the second-order eikonal
corrections is rather modest, even at (GeV/c). The same
applies to polarization observables, left-right asymmetries, and differential
cross sections at low missing momenta. At high missing momenta, however, the
second-order eikonal corrections are significant and bring the calculations in
closer agreement with the data and/or the exact results from models adopting
partial-wave expansions.Comment: 16 pages, 4 figures, 1 table, submitted to Phys. Lett.
Do Human Resource Practices, Employee Remuneration And Employee Benefits Have Significant Influence On The Retention Of Childcare Teachers In The Childcare Service Industry?
This study investigates the impact of human resource practices, employee remuneration
and employee benefits on childcare teachers' intentions to stay in the Singaporean
workforce. This mixed methods study focuses on current qualified childcare teachers,
their perspectives on human resource practices, employee remuneration and employee
benefits in their workplaces and their intentions regarding whether to continue working
in the childcare sector in Singapore. In the first phase of the study, which was qualitative,
in-depth interviews were conducted with 21 current qualified childcare teachers. In the
second phase of the study, which was quantitative, 202 current qualified childcare
teachers in Singapore participated in a paper-based and web-based survey. The findings
indicate that childcare teachers in Singapore want to be rewarded with fair human
resource practices and employee wages are not the only dominant factor on the retention
of childcare teachers in the Singaporean childcare industry. This study addresses a
knowledge gap about childcare teacher retention in the childcare service industry in
Singapore
Selenium Responsive Dermatosis in Cattle
A yearling Maine-Anjou heifer was admitted to the Iowa State University Veterinary Teaching Hospital for diagnosis and treatment of a clinical problem characterized by weight loss, extensive hair loss and multiple 2-5 cm skin lesions around the face, poll, ears, neck, back and rump regions. Less extensive lesions of similar appearance were also found on the legs and underline. Grossly, many of the lesions were ringworm-like in appearance with prominent, whitish, asbestos-like accumulations of scaley material on the surface
- …