scholarly journals A Comparative Study: Fast and Direct Voltammetric Measurements of Adenosine and Uric Acid at Copper and Carbon Fiber as Sensors

2021 ◽  
pp. ArticleID:210944
Author(s):  
K M. Abou El-Nour ◽  
Keyword(s):  
Uric Acid ◽  
Carbon Fiber ◽  
Comparative Study ◽  
Voltammetric Measurements

Nanostructured Carbon Fiber Disk Electrodes for Sensitive Determinations of Adenosine and Uric Acid

2000 ◽  
Vol 72 (7) ◽  
pp. 1576-1584 ◽  
Author(s):  
Anna Brajter-Toth ◽  
Kholoud Abou El-Nour ◽  
Eder T. Cavalheiro ◽  
Roberto Bravo
Keyword(s):  
Uric Acid ◽  
Carbon Fiber ◽  
Nanostructured Carbon ◽  
Disk Electrodes

scholarly journals Comparative Study of Steel-FRP, FRP and Steel-Reinforced Coral Concrete Beams in Their Flexural Performance

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2097 ◽  
Author(s):  
Lei Wang ◽  
Jiwang Zhang ◽  
Changshi Huang ◽  
Feng Fu
Keyword(s):  
Carbon Fiber ◽  
Comparative Study ◽  
Failure Modes ◽  
Concrete Beams ◽  
Fiber Composite ◽  
Experimental Tests ◽  
Utilization Rate ◽  
Carbon Fiber Composite ◽  
Steel Core ◽  
Reinforced Beams

In this study, a comparative study of carbon fiber reinforced polymer (CFRP) bar and steel–carbon fiber composite bar (SCFCB) reinforced coral concrete beams was made through a series of experimental tests and theoretical analyses. The flexural capacity, crack development and failure modes of CFRP and SCFCB-reinforced coral concrete were investigated in detail. They were also compared to ordinary steel-reinforced coral concrete beams. The results show that under the same conditions of reinforcement ratios, the SCFCB-reinforced beams exhibit better performance than CFRP-reinforced beams, and stiffness is slightly lower than that of steel-reinforced beams. Under the same load conditions, the crack width of SCFCB beams was between that of steel-reinforced beams and CFRP bar-reinforced beams. Before the steel core yields, the crack growth rate of SCFCB beam is similar to the steel-reinforced beams. SCFCB has a higher strength utilization rate—about 70–85% of its ultimate strength. Current design guidance was also examined based on the test results. It was found that the existing design specifications for FRP-reinforced normal concrete is not suitable for SCFCB-reinforced coral concrete structures.

A comparative study of carbon fiber-based microelectrodes for the measurement of nitric oxide in brain tissue

2008 ◽  
Vol 24 (4) ◽  
pp. 704-709 ◽  
Author(s):  
Ricardo M. Santos ◽  
Cátia F. Lourenço ◽  
Ana P. Piedade ◽  
Rodney Andrews ◽  
François Pomerleau ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Fiber ◽  
Comparative Study ◽  
Brain Tissue
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