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Codebooks with small inner-product correlation are preferred in many practical applications such as direct spread code division multiple access communications, coding theory, and compressed sensing. The well-known Welch bound and Levenstein bound are useful benchmarks for the correlation of codebooks. In general, it is very hard to obtain codebooks achieving the Welch bound or the Levenstein bound...
Teamwork skills are recognized internationally as important skills for engineering professionals. Literature shows that professional skills, especially teamwork skills, have not been included into the curriculum design and assessment in Chinese engineering programmes, and little work has been done to find the effective way to learn teamwork for engineering students in academic settings in China. This...
A method based on spatial correlation filtering and stationary wavelet transform is proposed to eliminate the noise in ECG signal. The spatial correlation filtering is applied to shrink the wavelet coefficients, and the stationary wavelet transform is used to decompose the noisy signal. The experiment shows that the algorithm is good for noise reduction of ECG signal.
QAP regression is used to analyse the relations between personal relationship of inventors (i.e. scientists, engineers and other staff who are responsible for the patent) and firm's relationship of cooperative technological innovation. With different conclusions drawn by previous studies, the paper did not find the persistence of relationship of cooperative technological innovation, i.e. companies...
The plant sulfate transporter proteins play important roles in transport and absorption of sulfate. It has been demonstrated that the members of this family in plants may be classified into 5 main groups. In the present study, we found the statistical evidence of shifted evolutionary rate between groups that contributed to functional divergence of this family in plants. Furthermore, evolutionary analysis...
Aim of the present work was to establish the kinetics of micronucleus (MN) induction in Vicia faba root tip cells on the genotoxicity of chromium trioxide (CrO3). The data indicate non-linear association between MN and exposure times in Vicia faba root tip cells. The maximal MN rate occurred at 24 h. The MN rates were increased in Vicia faba root tip cells from dose of 10-8 to 10-1 mol/L with treatment...
To increase the link capacity and reliability, the use of channel state information at the transmitter in multi-antenna systems is often discussed in current research. Such information is often obtained via a feedback link which is usually limited by rate constraints. In this paper, we propose a novel scheme to quantize the channel direction vector by exploiting the temporal correlation for MISO fading...
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