The XRD graph clearly shows peak at (100), (101), (102), (103) (008), (110), (108), and (116) as in accordance with the JCPDS file (06-0464) indicating that CuS exists as covellite phase.
The morphology of CuS nanostructures was investigated by FE-SEM analysis.
Figure 3 shows the SEM image of CuS nanostructures at 150[degrees]C for 5 hrs, which shows that there was not much regularity in the features.
In this paper, we intend to maximize the overall throughput of NSCRS with the nonorthogonal AF relaying by optimally allocating the power among CUs, while minimizing the required interaction between primary and cognitive networks as well as the overhead of CSI feedback.
In the cognitive network, the CUs seek opportunities to access the AP of cognitive network.
Clearly, the second part in Equation (l) is the interference to the relay node [R.sub.i] from other CUs. We assume that [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is an independent zero-mean complex Gaussian random variable with variance [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], denoting the Rayleigh fading channel.
The second part in Equation (2) is the interference at [D.sub.i] due to other CUs. We assume that [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is an independent zero-mean complex Gaussian random variable with variance [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], denoting the Rayleigh fading channel.
CUs affiliated with the largest Brazilian cooperative network.
A CU acts as a financial intermediary between its net saver members, who want high dividend rates on savings (i.e., shares in CUs), and its net borrower members, who prefer low interest rates on loans.
Although CUs have continued to grow their shares, their market share has actually declined slightly from 2003 to 2009.
First, CUs enjoy two identifiable cost advantages compared to banks (Walter, 2006) (Governmental Accounting Office, 2006).
CUs typically do not ask for fees from their student loan borrowers, which leaves interest as the primary source of student loan earnings.
CUs can begin accounting for interest income as soon as they make a new student loan, but the biggest difference between student loans and other types of loans is their cash flow, experts said.
CUBG also discovered that 222 of these CUs had 0.0% delinquencies and 61 of them had between 0.01% and 0.49% in delinquencies.
According to CUBG President/CEO Larry Middleman, "if we remove the 10 worst performing CUs, the average delinquency rate changes to 3.64%.